Product Description
Product Description
* All-wheel drive vehicle chassis, satisfy the national emission standard, strong off-road performance.
* Multi-axle steering intelligent control and multi-steering mode provide flexible steering and small steering
diameter.
* Hydro-pneumatic suspension with good travelling performance, which adapts to severe road conditions
such as muddy road, sand, snowfield. upland etc.
Product Features
Full Hydraulic Top-drive
Output port adopts floating device, which effectively reduces the wearing of the drill stem thread, and
increases service life of the drill stem.
Spindle has a strong slag discharge capacity through its large drift diameter, which makes it especially adapt
to the reverse circulation construction.
The Feeding System
It has a large stroke by extending completely when working.which adapts to long drill stem and long casing
constructions. It retracts when travel to reduce transportation dimensions.
It adopts cylinder-wire rope speed multiple feeding system with slow feeding mode, which provides slow
drilling and fast lifting.With that it ensures good drilling performance and improves working efficiency.
The Convenient Stem Changing Mechanism
Optional independent stem auto-change system and top-drive can use cooperatively, which realizes full
automation of stem loading and unloading, and reduces the number of workers and work intensity on the
work site.
The Advanced and Efficient Hydraulic Control System
The independently developed load sensitivity control system can provide proper flow and pressure to the
actuating mechanism according to the loading needs, which is energy-efficient.
It adopts the proportional control of the major movements, which makes the speed adjust conveniently.
With no shock when start and stop, the control is highly accurate.
The Efficient Large Torque Fastening and Unfastening Device
It can fasten and unfasten the drill tools rapidly by using with power slip cooperatively, which realizes
loading and unloading drill stem without assistance of workers and reduces work tensity.
The Comfortable Cab
Large lifting force drilling rig adopts closed cab, which insulates the noise and dust of the work site
efficiently and improves operating environment greatly. With human engineering designed intensive
operation platform, it is comfortable to operate and convenient to observe.
Technical Data
| Type | HFXC300 | HFXC500 | HFXC3000 | ||
| Drilling capability | Driling depth | m | 300(∅89) | 500(∅89) | 3000(∅114) |
| Max. diameter of working floor | mm | ∅330 | ∅500 | ∅820 | |
| Feeding system | Max. lifting capacity | KN | 160 | 280 | 1200 |
| Max.feeding capacity | KN | 80 | 120 | 260 | |
| Max.lifting speed | m/min | 32 | 39 | 30 | |
| Max.feeding speed | m/min | XS3800 | 57 | 60 | |
| Stroke | mm | 7000 | 15240 | ||
| Top drive | Max.torque | N.M | 6600/3300 | 11000 | 27500/18300 |
| Max.Speed | r/min | 95/190 | 143 | 120/180 | |
| I.D | mm | ∅55 | ∅76 | ∅105 | |
| Floating distance | mm | / | 100 | 100 | |
| Max.tilting angle | ° | / | 85 | 85 | |
| Deck engine | Type | QSB5.9-C150 | QSB6.7-C220 | CAT C18 | |
| Rated power | kw | 113 | 164 | 571 | |
| Main winch | Hoisting capacity | / | 50 | / | |
| Tool winch | Hoisting capacity | KN | 15 | / | 50 |
| Breakout device | Max.breakout torque | KN | / | 22000 | 95000 |
| vise clamping range | N.M | / | 3.5″ ~7.5″ | 2-7/8″~ 10-6/8″ | |
| Foam pump | Max. flow | mm | / | 35 | / |
| Max. pressure | L/min | / | 4 | / | |
| Mud pipe | I.D | Mpa | ∅55 | ∅76 | ∅76 |
| Max. pressure | mm | 8 | 8 | 35 | |
| Chassis | Drive mode | Mpa | 4×2 car chassis | Iveco 6×4 car chassis | 10×8 all-ground car chassis |
| Rated power | kw | 121 | 220 | 327 | |
| High speed | km/h | 79 | 96 | 80 | |
| Max.climbing gradient | % | 41 | 54 | 45 | |
| Working dimension(L*W*H) | mm | 7960 x 2500 x 7370 | 15710 x 3600 x 11250 | 14680 x 5184 x (13800 ~ 21400) | |
| Transportation dimension(L*W*H) | mm | 8100 x 2500 x 3250 | 12000 x 2500 x 4200 | 14200 x 2550 x 4000 | |
| Weight | t | 13.3 | 23 | 55 | |
Working Site
Company Introduction
Hanfa Group established in 1998 is a key enterprise in the industry of geological exploration and water well
field, with the ability to research,manufacture and market. Now, the Group pursues high standard
manufacturing and qualified products. It has more than 20 species such as water well drilling rig, core drilling
rig, engineering drilling rig, DTH drilling rig, horizontaldirectional drilling rig, etc. These machines are mainly
used in geological prospecting, exploration of railway and highway engineering, mining, SPT, water well,
geothermal well etc. Some of them won the Scientific and Technical Advance Prize or the National Scientific
Research Achievement Prize. All the products have passed the quality system certification of ISO9001:2000
and are national inspection-free products.
1. More than 30 years of experience
The factory is located in ZheJiang Province, China. We are very welcome to visit our factory. If you need it,
we will arrange a pick-up.
2.Top production team
The transportation and packaging will be packaged in international standards. If you have special packaging
requirements, we will give you the most suitable solution.
3.Our Service
– New machine provides technical trair.
– Once anything goes wrong with the machine by normal using, our technical person must appear at the first
time no matter where you are.
– When the machine should be maintained, you will receive the reminding from us.
– According to different geological conditions, we will recommend different construction plans for you
– Remind you which are wearing parts, so you can prepare enough.
– 24 hours respond to your quality problem.
Workshop
Our Customers
Service
Our Honor
FAQ
1, Are you trading company or manufacturer?
We are professional manufacturer, and our factory mainly produce water well drilling rig, core drilling rig,
DTH drilling rig, piling rig, etc. Our products have been exported to more than 50 countries of Asia, South
America, Africa, and get a good reputation in the world.
2, Are your products qualified?
Yes, our products all have gained ISO certificate,and we have specialized quality inspection department for
checking every machine before leaving our factory.
3, How about your machine quality?
All of our machines hold the ISO, QC and TUV certificate, and each set of machine must pass a great
number of strict testing in order to offer the best quality to our customers.
4, Do you have after service?
Yes, we have special service team which will offer you professional guidance. If you need, we can send our
engineer to your worksite and provid the training for your staff.
5, What about the qaulity warranty?
We offer one-year quality warranty for machines’ main body.
6, How long can you deliver the machine?
Generally, we can deliver the machine in 7 days.
Applications of Spline Couplings
A spline coupling is a highly effective means of connecting 2 or more components. These types of couplings are very efficient, as they combine linear motion with rotation, and their efficiency makes them a desirable choice in numerous applications. Read on to learn more about the main characteristics and applications of spline couplings. You will also be able to determine the predicted operation and wear. You can easily design your own couplings by following the steps outlined below.
Optimal design
The spline coupling plays an important role in transmitting torque. It consists of a hub and a shaft with splines that are in surface contact without relative motion. Because they are connected, their angular velocity is the same. The splines can be designed with any profile that minimizes friction. Because they are in contact with each other, the load is not evenly distributed, concentrating on a small area, which can deform the hub surface.
Optimal spline coupling design takes into account several factors, including weight, material characteristics, and performance requirements. In the aeronautics industry, weight is an important design factor. S.A.E. and ANSI tables do not account for weight when calculating the performance requirements of spline couplings. Another critical factor is space. Spline couplings may need to fit in tight spaces, or they may be subject to other configuration constraints.
Optimal design of spline couplers may be characterized by an odd number of teeth. However, this is not always the case. If the external spline’s outer diameter exceeds a certain threshold, the optimal spline coupling model may not be an optimal choice for this application. To optimize a spline coupling for a specific application, the user may need to consider the sizing method that is most appropriate for their application.
Once a design is generated, the next step is to test the resulting spline coupling. The system must check for any design constraints and validate that it can be produced using modern manufacturing techniques. The resulting spline coupling model is then exported to an optimisation tool for further analysis. The method enables a designer to easily manipulate the design of a spline coupling and reduce its weight.
The spline coupling model 20 includes the major structural features of a spline coupling. A product model software program 10 stores default values for each of the spline coupling’s specifications. The resulting spline model is then calculated in accordance with the algorithm used in the present invention. The software allows the designer to enter the spline coupling’s radii, thickness, and orientation.
Characteristics
An important aspect of aero-engine splines is the load distribution among the teeth. The researchers have performed experimental tests and have analyzed the effect of lubrication conditions on the coupling behavior. Then, they devised a theoretical model using a Ruiz parameter to simulate the actual working conditions of spline couplings. This model explains the wear damage caused by the spline couplings by considering the influence of friction, misalignment, and other conditions that are relevant to the splines’ performance.
In order to design a spline coupling, the user first inputs the design criteria for sizing load carrying sections, including the external spline 40 of the spline coupling model 30. Then, the user specifies torque margin performance requirement specifications, such as the yield limit, plastic buckling, and creep buckling. The software program then automatically calculates the size and configuration of the load carrying sections and the shaft. These specifications are then entered into the model software program 10 as specification values.
Various spline coupling configuration specifications are input on the GUI screen 80. The software program 10 then generates a spline coupling model by storing default values for the various specifications. The user then can manipulate the spline coupling model by modifying its various specifications. The final result will be a computer-aided design that enables designers to optimize spline couplings based on their performance and design specifications.
The spline coupling model software program continually evaluates the validity of spline coupling models for a particular application. For example, if a user enters a data value signal corresponding to a parameter signal, the software compares the value of the signal entered to the corresponding value in the knowledge base. If the values are outside the specifications, a warning message is displayed. Once this comparison is completed, the spline coupling model software program outputs a report with the results.
Various spline coupling design factors include weight, material properties, and performance requirements. Weight is 1 of the most important design factors, particularly in the aeronautics field. ANSI and S.A.E. tables do not consider these factors when calculating the load characteristics of spline couplings. Other design requirements may also restrict the configuration of a spline coupling.
Applications
Spline couplings are a type of mechanical joint that connects 2 rotating shafts. Its 2 parts engage teeth that transfer load. Although splines are commonly over-dimensioned, they are still prone to fatigue and static behavior. These properties also make them prone to wear and tear. Therefore, proper design and selection are vital to minimize wear and tear on splines. There are many applications of spline couplings.
A key design is based on the size of the shaft being joined. This allows for the proper spacing of the keys. A novel method of hobbing allows for the formation of tapered bases without interference, and the root of the keys is concentric with the axis. These features enable for high production rates. Various applications of spline couplings can be found in various industries. To learn more, read on.
FE based methodology can predict the wear rate of spline couplings by including the evolution of the coefficient of friction. This method can predict fretting wear from simple round-on-flat geometry, and has been calibrated with experimental data. The predicted wear rate is reasonable compared to the experimental data. Friction evolution in spline couplings depends on the spline geometry. It is also crucial to consider the lubrication condition of the splines.
Using a spline coupling reduces backlash and ensures proper alignment of mated components. The shaft’s splined tooth form transfers rotation from the splined shaft to the internal splined member, which may be a gear or other rotary device. A spline coupling’s root strength and torque requirements determine the type of spline coupling that should be used.
The spline root is usually flat and has a crown on 1 side. The crowned spline has a symmetrical crown at the centerline of the face-width of the spline. As the spline length decreases toward the ends, the teeth are becoming thinner. The tooth diameter is measured in pitch. This means that the male spline has a flat root and a crowned spline.
Predictability
Spindle couplings are used in rotating machinery to connect 2 shafts. They are composed of 2 parts with teeth that engage each other and transfer load. Spline couplings are commonly over-dimensioned and are prone to static and fatigue behavior. Wear phenomena are also a common problem with splines. To address these issues, it is essential to understand the behavior and predictability of these couplings.
Dynamic behavior of spline-rotor couplings is often unclear, particularly if the system is not integrated with the rotor. For example, when a misalignment is not present, the main response frequency is 1 X-rotating speed. As the misalignment increases, the system starts to vibrate in complex ways. Furthermore, as the shaft orbits depart from the origin, the magnitudes of all the frequencies increase. Thus, research results are useful in determining proper design and troubleshooting of rotor systems.
The model of misaligned spline couplings can be obtained by analyzing the stress-compression relationships between 2 spline pairs. The meshing force model of splines is a function of the system mass, transmitting torque, and dynamic vibration displacement. This model holds when the dynamic vibration displacement is small. Besides, the CZPT stepping integration method is stable and has high efficiency.
The slip distributions are a function of the state of lubrication, coefficient of friction, and loading cycles. The predicted wear depths are well within the range of measured values. These predictions are based on the slip distributions. The methodology predicts increased wear under lightly lubricated conditions, but not under added lubrication. The lubrication condition and coefficient of friction are the key factors determining the wear behavior of splines.
