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China supplier Torno CNC High Precision Metal Automatic Hydraulic Tailstock Slant Bed Lathe CNC Machine with high quality

Product Description

Torno CNC High Precision Metal Automatic Hydraulic tailstock Slant Bed Lathe CNC Machine

      This series of slant bed high speed CNC lathe adopts imported or domestic high-performance CNC system and matched motor and drive to realize two-axis linkage processing. Equipped with ZheJiang axle sleeve spindle, with high precision, high speed, smooth operation and other characteristics, optional hydraulic chuck or collet chuck, can effectively save the work piece clamping time. The machine is suitable for machining shaft parts, thread, arc cone and inner and outer surfaces of the rotating body. Widely used in the automobile industry, electronic industry, motorcycle, home appliances, furniture, lighting and other industries such as rotating body products processing.


1. Slant bed type casting, 2 axis linear way apply to high precision processing.

2. ZheJiang linear way ensured the stability of accuracy.

3. ZheJiang high speed and high accuracy spindle, Japan high precision bearing.

4. Hydraulic chuck, hydraulic station and hydro-cylinder are optional.

5. Chain type auto conveyor is optional.

6. GSK control system or KND control system.


Model HTC-4640
Max. swing diameter over bed mm 460
Max. swing diameter over carriage mm 170
Max. length of workpiece mm 350/300/285 (With Power tool turret)
Spindle head (Chuck optional)   A2-5 (6″)/ A2-6 (8″)
Spindle motor kw 7.5
Spindle rotation speed rpm 5000/ 4000*
Spindle through-hole diameter mm Φ56
Bar diameter mm Φ42
X axis limited travel mm 210
Z axis limited travel mm 400
Tool post   10T/12T servo tool turret
12T power tool turret
8T/10T/12T hydraulic tool turret
Height of tool turret center mm 80
Diameter of tailstock sleeve mm 65
Trevel of tailstock sleeve mm 80
Max. travel of tailstock mm 300
Tailstock sleeve taper   MT4
Bed type and slant angle   Whole body slant type 30°
Dimension mm 2200*1600*1700
Weight kg 2250


Standard accessories:

1. GSK controller system with motor
2. Fully enclosed cover
3. 6″ hydraulic 3 jaw chuck
4. 12T servo tool turret
5. Hydraulic station
6. Foot switch
7. Hydraulic tailstock
8. Auto lubrication system
9. Workpiece coolant system
10. Two axis inner encoder feedback system
11. Working light
12. Alarming light
13. Xihu (West Lake) Dis. way cover
14. Tool and tool box
15. Operation manual

Optional accessories:

1. Fanuc controller system
2. 10T hydraulic  tool turret
3. Chain type conveyor

Industry Focus

                                   Aeronautical parts                                                                             Hardware Parts

                                        Multi-angle part

Core Technology

      Provide customer apllication solution
      Joint company amassed abundant database, can fast provdie applicarion case of production technology beat, machine model selection, machining technology optimization, tool choose, suggest turning and milling, etc. In order to help customer improve produce efficiency, improve machining precision.

      Can provide automatic feeding solution
      Combined customer’s parts machining requirement and technology, design matching material automatic feeding production line, included Truss robot, Feeding tray, etc. Also can continue automatic line remouled of cnc lathe machine.

      Provide customization products for customer
      Aim at small axle type, plate type parts machining for automobile brake dics, etc, devolped variety different machining requirements samll cnc lathe machine. Also can according to customer requirements, customized model for multiaxis turning and milling machining, double spindle machining, etc.

      High precision and good quality product
      Joint company is absorbed in high quality production, amassed abundant experience of cnc product design, manufacture technological, test process, etc. Established quality assurance system, with the most advanced production testing instrument, choose quality accessrories, so our product quality is better than domestic similar products.

Company Profile

       HangZhou Joint Technology Co., Ltd. specializes in R&D and manufacturing mold processing and machinery parts processing equipment, we developed high quality and high-tech research, development, manufacturing, service team and management system, and expanded products to more than 11 series from milling machines, to machine center,mechanical arm, automation. With the exceptional quality products and distinct brand reputation, our products are sold to more than 40 developed cities all over China, and also to more than 20 countries all over the world across Asia, Europe and America.Our company takes the high quality product as orientation, R&D ideas is to provide customers with the most suitable quality products, became a professional machine tool manufacturer with a complete product line of CZPT and parts processing machine tool and strong tailor-made design capability in China.

Core strengths

1. Standardize processes and operating mechanisms, high standards production and testing software and hardware – Ensure stable product supply and service support.
2. We insist in-depth research and technological precipitation for more than 20 years – Promote rapid innovation and progress in products and technology.
3. Comprehensive information management systems such as ERP and CRM – JOINT has formed a efficient operation and continuous improvement system.
4. Integrity, collaboration, innovation, and CZPT spirit –  we JOINT has established a strong and stable supply chain, and a large long-term CZPT customer base.

Special advantages

1. Provide more practical customized products
2. Provide CNC product applications support
3. Provide integrated solution for auto production line
4. Provide integrated design of mold, and parts processing production line

Qualifications and honors

1. National High-tech Enterprose
2. HangZhou famous brand “JOINT”
3. Member of China Quality Association
4. Member of China Machine Tools Association
5. Vice-chairmen of HangZhou Machinery Association
6. CE certification on milling machine, grinidng machine and machine center.
7. More than 150 patents on invention, utility model patent and software copyright etc.
8. ZheJiang famous trademark


Q1: Are you trading company or manufacturer?
A1: We are factory since 1995.

Q2: What is your terms of payments?
A2: 30% as deposit, 70% should be paid before delivery.

Q3: How can I choose the most suitable machines?
A3: Please tell us your requirements of the machines, or you could send us the products drawing, our engineer can help to choose suitable model for you.

Q4: What is the package? Is it suitable for shipment?
A4: Machine will be packed by exporting standard package, water proof and anti-rust. It is very much strong for oversea transportation.

Q5: How long is the warranty for machines?
A5: Warranty time is 12 months. We will supply the repair parts in this warranty time. The charge of repair parts will be free due to its quality problemin this guarantee.

How to Calculate Stiffness, Centering Force, Wear and Fatigue Failure of Spline Couplings

There are various types of spline couplings. These couplings have several important properties. These properties are: Stiffness, Involute splines, Misalignment, Wear and fatigue failure. To understand how these characteristics relate to spline couplings, read this article. It will give you the necessary knowledge to determine which type of coupling best suits your needs. Keeping in mind that spline couplings are usually spherical in shape, they are made of steel.

Involute splines

An effective side interference condition minimizes gear misalignment. When 2 splines are coupled with no spline misalignment, the maximum tensile root stress shifts to the left by 5 mm. A linear lead variation, which results from multiple connections along the length of the spline contact, increases the effective clearance or interference by a given percentage. This type of misalignment is undesirable for coupling high-speed equipment.
Involute splines are often used in gearboxes. These splines transmit high torque, and are better able to distribute load among multiple teeth throughout the coupling circumference. The involute profile and lead errors are related to the spacing between spline teeth and keyways. For coupling applications, industry practices use splines with 25 to 50-percent of spline teeth engaged. This load distribution is more uniform than that of conventional single-key couplings.
To determine the optimal tooth engagement for an involved spline coupling, Xiangzhen Xue and colleagues used a computer model to simulate the stress applied to the splines. The results from this study showed that a “permissible” Ruiz parameter should be used in coupling. By predicting the amount of wear and tear on a crowned spline, the researchers could accurately predict how much damage the components will sustain during the coupling process.
There are several ways to determine the optimal pressure angle for an involute spline. Involute splines are commonly measured using a pressure angle of 30 degrees. Similar to gears, involute splines are typically tested through a measurement over pins. This involves inserting specific-sized wires between gear teeth and measuring the distance between them. This method can tell whether the gear has a proper tooth profile.
The spline system shown in Figure 1 illustrates a vibration model. This simulation allows the user to understand how involute splines are used in coupling. The vibration model shows 4 concentrated mass blocks that represent the prime mover, the internal spline, and the load. It is important to note that the meshing deformation function represents the forces acting on these 3 components.

Stiffness of coupling

The calculation of stiffness of a spline coupling involves the measurement of its tooth engagement. In the following, we analyze the stiffness of a spline coupling with various types of teeth using 2 different methods. Direct inversion and blockwise inversion both reduce CPU time for stiffness calculation. However, they require evaluation submatrices. Here, we discuss the differences between these 2 methods.
The analytical model for spline couplings is derived in the second section. In the third section, the calculation process is explained in detail. We then validate this model against the FE method. Finally, we discuss the influence of stiffness nonlinearity on the rotor dynamics. Finally, we discuss the advantages and disadvantages of each method. We present a simple yet effective method for estimating the lateral stiffness of spline couplings.
The numerical calculation of the spline coupling is based on the semi-analytical spline load distribution model. This method involves refined contact grids and updating the compliance matrix at each iteration. Hence, it consumes significant computational time. Further, it is difficult to apply this method to the dynamic analysis of a rotor. This method has its own limitations and should be used only when the spline coupling is fully investigated.
The meshing force is the force generated by a misaligned spline coupling. It is related to the spline thickness and the transmitting torque of the rotor. The meshing force is also related to the dynamic vibration displacement. The result obtained from the meshing force analysis is given in Figures 7, 8, and 9.
The analysis presented in this paper aims to investigate the stiffness of spline couplings with a misaligned spline. Although the results of previous studies were accurate, some issues remained. For example, the misalignment of the spline may cause contact damages. The aim of this article is to investigate the problems associated with misaligned spline couplings and propose an analytical approach for estimating the contact pressure in a spline connection. We also compare our results to those obtained by pure numerical approaches.


To determine the centering force, the effective pressure angle must be known. Using the effective pressure angle, the centering force is calculated based on the maximum axial and radial loads and updated Dudley misalignment factors. The centering force is the maximum axial force that can be transmitted by friction. Several published misalignment factors are also included in the calculation. A new method is presented in this paper that considers the cam effect in the normal force.
In this new method, the stiffness along the spline joint can be integrated to obtain a global stiffness that is applicable to torsional vibration analysis. The stiffness of bearings can also be calculated at given levels of misalignment, allowing for accurate estimation of bearing dimensions. It is advisable to check the stiffness of bearings at all times to ensure that they are properly sized and aligned.
A misalignment in a spline coupling can result in wear or even failure. This is caused by an incorrectly aligned pitch profile. This problem is often overlooked, as the teeth are in contact throughout the involute profile. This causes the load to not be evenly distributed along the contact line. Consequently, it is important to consider the effect of misalignment on the contact force on the teeth of the spline coupling.
The centre of the male spline in Figure 2 is superposed on the female spline. The alignment meshing distances are also identical. Hence, the meshing force curves will change according to the dynamic vibration displacement. It is necessary to know the parameters of a spline coupling before implementing it. In this paper, the model for misalignment is presented for spline couplings and the related parameters.
Using a self-made spline coupling test rig, the effects of misalignment on a spline coupling are studied. In contrast to the typical spline coupling, misalignment in a spline coupling causes fretting wear at a specific position on the tooth surface. This is a leading cause of failure in these types of couplings.

Wear and fatigue failure

The failure of a spline coupling due to wear and fatigue is determined by the first occurrence of tooth wear and shaft misalignment. Standard design methods do not account for wear damage and assess the fatigue life with big approximations. Experimental investigations have been conducted to assess wear and fatigue damage in spline couplings. The tests were conducted on a dedicated test rig and special device connected to a standard fatigue machine. The working parameters such as torque, misalignment angle, and axial distance have been varied in order to measure fatigue damage. Over dimensioning has also been assessed.
During fatigue and wear, mechanical sliding takes place between the external and internal splines and results in catastrophic failure. The lack of literature on the wear and fatigue of spline couplings in aero-engines may be due to the lack of data on the coupling’s application. Wear and fatigue failure in splines depends on a number of factors, including the material pair, geometry, and lubrication conditions.
The analysis of spline couplings shows that over-dimensioning is common and leads to different damages in the system. Some of the major damages are wear, fretting, corrosion, and teeth fatigue. Noise problems have also been observed in industrial settings. However, it is difficult to evaluate the contact behavior of spline couplings, and numerical simulations are often hampered by the use of specific codes and the boundary element method.
The failure of a spline gear coupling was caused by fatigue, and the fracture initiated at the bottom corner radius of the keyway. The keyway and splines had been overloaded beyond their yield strength, and significant yielding was observed in the spline gear teeth. A fracture ring of non-standard alloy steel exhibited a sharp corner radius, which was a significant stress raiser.
Several components were studied to determine their life span. These components include the spline shaft, the sealing bolt, and the graphite ring. Each of these components has its own set of design parameters. However, there are similarities in the distributions of these components. Wear and fatigue failure of spline couplings can be attributed to a combination of the 3 factors. A failure mode is often defined as a non-linear distribution of stresses and strains.

China supplier Torno CNC High Precision Metal Automatic Hydraulic Tailstock Slant Bed Lathe CNC Machine     with high qualityChina supplier Torno CNC High Precision Metal Automatic Hydraulic Tailstock Slant Bed Lathe CNC Machine     with high quality

China Standard CE Agl-185 Width 1800mm Hydraulic Flip Lawn Mower Heavy Sickle Alfalfa Hay Disc Garden Grass Machine Agricultural Machinery Trimmer Reciprocating Rotary Tractor near me manufacturer

Product Description

Made in China, Sold to the world
Versatile, Easy, Affordable, Powerful, Reliable


AGF/AGL series Hydraulic flip lawn mower product description

AGF/AGL series Hydraulic flip lawn mower product description

AGF/AGL series lawn mower By high-speed rotation of spindle, it is used for mowing in the field, and weeds no more than half a meter. It can turn over its body, for weeds on a slope and side trimming on the trees.
Hydraulic flip mower provide an effective solution for the control of excessive growth. PTO flail mower, also known as mulching mowers, are designed to mow and shred concurrently. The shredded materiall acts as an effective mulch, to retard ensuing growth while providing a medium that will better release nutrients into the soil.

Main sales territory: regions Europe, the United States, Russia, Ukraine, South America, Africa, southeast Asia and Australia.

 AGF/AGL series Hydraulic flip lawn mower Product Selling Points 

1. Transmission: By sturdy toothed belts.
2. It has hydraulic cylinders to adjust the right and left movement and turn over the body.
3. Gearbox is made of graphite casting iron. Material performance is better. Not easy broken.
4. After dynamic balance test, the blade axle can run stably at high speed, with lower noise.
5. The blades have more quantity, bigger density and higher mowing efficiency.
6. The roller is equipped with bearing on both ends, so it can run more flexibly, without stronger wearing.
7. Y shape blades and hammers are optional, to meet the needs of different customer.
8. The body can be turned over, so it has a wider range of application.
9. The verge Mowers are suitable for roadside verge, tree trimming and general mulching;
10. Hydraulic side adjustment;
11. Hydraulic inclining adjustment;

AGF series Hydraulic flip lawn mower technical parameters

Model AGF-145 AGF-165 AGF-185 AGF-200 AGF-220
Dimension(L×W×H) 1800×2225×1571mm 2000×2225×1571mm 2200×2225×1571mm 2400×2225×1571mm 2600×2225×1571mm
Structure Weight 598kg 670kg 750kg 830kg 900kg
Cutting Width 1400mm 1600mm 1800mm 2000mm 2200mm
PTO Turnning Speed 540r/min 540r/min 540r/min 540r/min 540r/min
PTO Spline 6×8×1600mm 6×8×1600mm 6×8×1600mm 6×8×1600mm 6×8×1600mm
Tractor HP 40-85HP 50-100HP 60-120HP 80-120HP 100-150HP

AGL series Hydraulic flip lawn mower technical parameters

Model AGL-125 AGL-145 AGL-165 AGL-185
Dimension(L×W×H) 1480x2225x1571mm 1800×2225×1571mm 2000×2225×1571mm 2200×2225×1571mm
Structure Weight 320kg 340kg 360kg 370kg
Cutting Width 125cm 1400mm 1600mm 1800mm
PTO Turnning Speed 540r/min 540r/min 540r/min 540r/min
PTO Spline 6x6x850 6×8×1600mm 6×8×1600mm 6×8×1600mm
Tractor HP 25~40hp 30-50HP 50-80HP 60-100HP

AGF/AGL series Hydraulic flip lawn mower  details show

Other series of lawn mowers on display

Lawn mower packaging and shipping link display

Picture display of tractors produced by our company

Our company produces other agricultural machinery display

Factory introduction

ZheJiang Euro Star Machinery Manufacture Co., Ltd. is a professional agricultural machinery manufacturer integrating R&D, design, manufacturing, sales and service. The company products cover road transport machinery, harvest machinery, equipment for plant protection, agricultural implements and agricultural unmanned machinery.
As a professional machinery equipment manufacturer in China, the company has committed itself to provide all-round solution to global modern agricultural mechanization. The company has integrating high-end products and technologies resources around the world by upgrading of technologies, quality and service and bringing forth new ideas to create innovative products as so to improve reputation and market share of CZPT in the world step by step.
The company has worked out comprehensive quality manual and quality control procedure files at all levels based on ISO9001:2000, covering product development, part purchase, production and manufacturing, quality inspection, sales and after-market service, so as to control the product quality on the whole.
Supported by comprehensive quality assurance system and developed sales and service network, the company has made leaping increase of sales in domestic market via trustful quality and outstanding service mode. Besides, Most of the company’s products have passed the European CE certification.products are exported to Europe, America, Latin America, the Middle East, Asia-Pacific, CIS, Africa and more than 50 countries and regions.Our products have been recognized by all foreign customers, and we are happy to establish long-term cooperative relationships with new friends.
Xihu (West Lake) Dis.g at satisfying the customers, we have worked hard to provide excellent and quick service to customers both at home and abroad via advanced technologies, developed products and comprehensive network so as to maximize the customer satisfaction.
In future, the company will adhere to the principle of sound business operation, continuous innovation and opening up and cooperation to create more high-end
machinery and equipment based on current ones for the society and for agriculture and contribute to global modern agriculture production.

Agricultural machinery factory production equipment display

One-stop business chain service support system
With an international service team with rich experience and excellent skill, company is committed to build a complete service guarantee system, which is professional, fast, efficient and comprehensive. Every consumer in overseas would receive a full-process service guarantee including pre-sales, on sale and after sales through the way of markets, spare parts, training service and technical support.

1) Market Service
Service Mode : Stationary Point + Circuit Service
Long-term Stationary Point Service
Short-term Circuit Technology Support Service
Service Process: Standard, High Efficient, Seasonable
Service Image: Professional, Unified

2) Spare Parts Service
Spare Parts Guarantee Measures: Dealer+ Spare Part Warehouse
100% original spare parts assure good quality;
Bar-code system adopted in the whole process assures accuracy and promptness;
Professional and accurate package and logistics assure safe and relieved transportation.

3) Training Service
Characteristic Training Mode: invite the technicians of dealers to factory for training, send engineers to dealers for training;
A full range of training tools, multi-language training materials, vivid training video;
Professional training teachers with rich service experience and good communication capability;
One-to-1 special assignment training;
Remote online network training;

4) Technical Support
The whole process Technology support covers on sale and after-sale service.

Terms of the deal:

1). Delivery: 20 days for normal orders
2). Price: We have price on basis FOB HangZhou and CIF your destination for your choice
3). Payment terms for first order:
—–T/T 30% deposit and balance before shipment
—–100% L/C at sight
4). Payment for long terms cooperation of good reputation partners, we have SINOSURE insurance for our VIP clients, and we can offer credit service after we familiar with each other. We are looking for partnership for long-term business


Why choose us?
1). The quality is guaranteed due to strong technical support ,first class component ,advanced production line and strict quality control system.
2). Be leading Expert in global market for more than 5 years, China Famous Export Brand recommended by CCCME (China Chamber of Commerce for Import and Export of Machinery and Electronic Products)
3). One-stop service with a large spare parts warehouse and professional service team .No matter where you are, you are guaranteed of Eurostar’ s warm reception, trustworthy and efficient professional services and persistent care.

How Shipment?
We have worked with many world famous shipping carriers and can arrange shipment to any country in the world, it can save your time and money. We can provide airfreight and CZPT service.

Contact us
Mr. Duke Zhang
ZheJiang Euro Star Machinery Manufacture Co., Ltd.
Add: 198 HangZhou Street, Xihu (West Lake) Dis. District, HangZhou City, ZheJiang Province,P.R.C.


Stiffness and Torsional Vibration of Spline-Couplings

In this paper, we describe some basic characteristics of spline-coupling and examine its torsional vibration behavior. We also explore the effect of spline misalignment on rotor-spline coupling. These results will assist in the design of improved spline-coupling systems for various applications. The results are presented in Table 1.

Stiffness of spline-coupling

The stiffness of a spline-coupling is a function of the meshing force between the splines in a rotor-spline coupling system and the static vibration displacement. The meshing force depends on the coupling parameters such as the transmitting torque and the spline thickness. It increases nonlinearly with the spline thickness.
A simplified spline-coupling model can be used to evaluate the load distribution of splines under vibration and transient loads. The axle spline sleeve is displaced a z-direction and a resistance moment T is applied to the outer face of the sleeve. This simple model can satisfy a wide range of engineering requirements but may suffer from complex loading conditions. Its asymmetric clearance may affect its engagement behavior and stress distribution patterns.
The results of the simulations show that the maximum vibration acceleration in both Figures 10 and 22 was 3.03 g/s. This results indicate that a misalignment in the circumferential direction increases the instantaneous impact. Asymmetry in the coupling geometry is also found in the meshing. The right-side spline’s teeth mesh tightly while those on the left side are misaligned.
Considering the spline-coupling geometry, a semi-analytical model is used to compute stiffness. This model is a simplified form of a classical spline-coupling model, with submatrices defining the shape and stiffness of the joint. As the design clearance is a known value, the stiffness of a spline-coupling system can be analyzed using the same formula.
The results of the simulations also show that the spline-coupling system can be modeled using MASTA, a high-level commercial CAE tool for transmission analysis. In this case, the spline segments were modeled as a series of spline segments with variable stiffness, which was calculated based on the initial gap between spline teeth. Then, the spline segments were modelled as a series of splines of increasing stiffness, accounting for different manufacturing variations. The resulting analysis of the spline-coupling geometry is compared to those of the finite-element approach.
Despite the high stiffness of a spline-coupling system, the contact status of the contact surfaces often changes. In addition, spline coupling affects the lateral vibration and deformation of the rotor. However, stiffness nonlinearity is not well studied in splined rotors because of the lack of a fully analytical model.

Characteristics of spline-coupling

The study of spline-coupling involves a number of design factors. These include weight, materials, and performance requirements. Weight is particularly important in the aeronautics field. Weight is often an issue for design engineers because materials have varying dimensional stability, weight, and durability. Additionally, space constraints and other configuration restrictions may require the use of spline-couplings in certain applications.
The main parameters to consider for any spline-coupling design are the maximum principal stress, the maldistribution factor, and the maximum tooth-bearing stress. The magnitude of each of these parameters must be smaller than or equal to the external spline diameter, in order to provide stability. The outer diameter of the spline must be at least 4 inches larger than the inner diameter of the spline.
Once the physical design is validated, the spline coupling knowledge base is created. This model is pre-programmed and stores the design parameter signals, including performance and manufacturing constraints. It then compares the parameter values to the design rule signals, and constructs a geometric representation of the spline coupling. A visual model is created from the input signals, and can be manipulated by changing different parameters and specifications.
The stiffness of a spline joint is another important parameter for determining the spline-coupling stiffness. The stiffness distribution of the spline joint affects the rotor’s lateral vibration and deformation. A finite element method is a useful technique for obtaining lateral stiffness of spline joints. This method involves many mesh refinements and requires a high computational cost.
The diameter of the spline-coupling must be large enough to transmit the torque. A spline with a larger diameter may have greater torque-transmitting capacity because it has a smaller circumference. However, the larger diameter of a spline is thinner than the shaft, and the latter may be more suitable if the torque is spread over a greater number of teeth.
Spline-couplings are classified according to their tooth profile along the axial and radial directions. The radial and axial tooth profiles affect the component’s behavior and wear damage. Splines with a crowned tooth profile are prone to angular misalignment. Typically, these spline-couplings are oversized to ensure durability and safety.

Stiffness of spline-coupling in torsional vibration analysis

This article presents a general framework for the study of torsional vibration caused by the stiffness of spline-couplings in aero-engines. It is based on a previous study on spline-couplings. It is characterized by the following 3 factors: bending stiffness, total flexibility, and tangential stiffness. The first criterion is the equivalent diameter of external and internal splines. Both the spline-coupling stiffness and the displacement of splines are evaluated by using the derivative of the total flexibility.
The stiffness of a spline joint can vary based on the distribution of load along the spline. Variables affecting the stiffness of spline joints include the torque level, tooth indexing errors, and misalignment. To explore the effects of these variables, an analytical formula is developed. The method is applicable for various kinds of spline joints, such as splines with multiple components.
Despite the difficulty of calculating spline-coupling stiffness, it is possible to model the contact between the teeth of the shaft and the hub using an analytical approach. This approach helps in determining key magnitudes of coupling operation such as contact peak pressures, reaction moments, and angular momentum. This approach allows for accurate results for spline-couplings and is suitable for both torsional vibration and structural vibration analysis.
The stiffness of spline-coupling is commonly assumed to be rigid in dynamic models. However, various dynamic phenomena associated with spline joints must be captured in high-fidelity drivetrain models. To accomplish this, a general analytical stiffness formulation is proposed based on a semi-analytical spline load distribution model. The resulting stiffness matrix contains radial and tilting stiffness values as well as torsional stiffness. The analysis is further simplified with the blockwise inversion method.
It is essential to consider the torsional vibration of a power transmission system before selecting the coupling. An accurate analysis of torsional vibration is crucial for coupling safety. This article also discusses case studies of spline shaft wear and torsionally-induced failures. The discussion will conclude with the development of a robust and efficient method to simulate these problems in real-life scenarios.

Effect of spline misalignment on rotor-spline coupling

In this study, the effect of spline misalignment in rotor-spline coupling is investigated. The stability boundary and mechanism of rotor instability are analyzed. We find that the meshing force of a misaligned spline coupling increases nonlinearly with spline thickness. The results demonstrate that the misalignment is responsible for the instability of the rotor-spline coupling system.
An intentional spline misalignment is introduced to achieve an interference fit and zero backlash condition. This leads to uneven load distribution among the spline teeth. A further spline misalignment of 50um can result in rotor-spline coupling failure. The maximum tensile root stress shifted to the left under this condition.
Positive spline misalignment increases the gear mesh misalignment. Conversely, negative spline misalignment has no effect. The right-handed spline misalignment is opposite to the helix hand. The high contact area is moved from the center to the left side. In both cases, gear mesh is misaligned due to deflection and tilting of the gear under load.
This variation of the tooth surface is measured as the change in clearance in the transverse plain. The radial and axial clearance values are the same, while the difference between the 2 is less. In addition to the frictional force, the axial clearance of the splines is the same, which increases the gear mesh misalignment. Hence, the same procedure can be used to determine the frictional force of a rotor-spline coupling.
Gear mesh misalignment influences spline-rotor coupling performance. This misalignment changes the distribution of the gear mesh and alters contact and bending stresses. Therefore, it is essential to understand the effects of misalignment in spline couplings. Using a simplified system of helical gear pair, Hong et al. examined the load distribution along the tooth interface of the spline. This misalignment caused the flank contact pattern to change. The misaligned teeth exhibited deflection under load and developed a tilting moment on the gear.
The effect of spline misalignment in rotor-spline couplings is minimized by using a mechanism that reduces backlash. The mechanism comprises cooperably splined male and female members. One member is formed by 2 coaxially aligned splined segments with end surfaces shaped to engage in sliding relationship. The connecting device applies axial loads to these segments, causing them to rotate relative to 1 another.

China Standard CE Agl-185 Width 1800mm Hydraulic Flip Lawn Mower Heavy Sickle Alfalfa Hay Disc Garden Grass Machine Agricultural Machinery Trimmer Reciprocating Rotary Tractor     near me manufacturer China Standard CE Agl-185 Width 1800mm Hydraulic Flip Lawn Mower Heavy Sickle Alfalfa Hay Disc Garden Grass Machine Agricultural Machinery Trimmer Reciprocating Rotary Tractor     near me manufacturer