Product Description
78mm ZDR Series High Precision Planetary Gearbox For Servo Motor
Product Description
ZDR series planetary gearbox has adopted helical gear design, so the meshing of gears can be smoother. This series has a double-supported and sealed structure, easier to install for customers. It is widely used in linear manipulators, packaging machinery, assembly lines and etc. The maximum backlash of the ZDR series is less than 5 arc.min and the reduction ratio covers 3~81.
The Product Advantages of Planetary Gearbox:
1.Flexible structure design, in line with various working conditions.
2.Ring gear processing technology: Using internal gear slotting machine and hobbing machine; the precision of ring gear after processing can reach GB7.
3.Hardened gear secondary scraping technology: secondary high-speed dry cutting of gear eliminates gear deformation caused by heat treatment. Gear accuracy can reach GB6.
4.Reliable backlash testing.
Specifications
Outline Drawing:
1)When input speed is 3000rpm:
| Product NO. | Reduction Ratio | Motor | Output Shaft Speed (rpm) | Standard Output Torque (N.m) | Instantaneous max.Output Torque (N.m) | Permissible Radial Load (N) | Permissible Axial Load (N) | Internal Moment Ohnertia Of Input Shaftconversion (x10-4 kg.m2) | Perrmissible Output Torque (N.m) | Instantaneous Max. Permissible Output Torque (N.m) |
| 78ZDR | 3 | 750 | 1000 | 6.37 | 19.3 | 784 | 392 | 0.913 | 6.86 | 20.6 |
| 5 | 400 | 600 | 5.39 | 16.2 | 980 | 490 | 0.363 | 6.57 | 19.7 | |
| 750 | 10.7 | 32.1 | 0.713 | 11.5 | 34.3 | |||||
| 9 | 200 | 333 | 3.72 | 11.3 | 1180 | 588 | 0.275 | 9.70 | 29.2 | |
| 400 | 9.51 | 28.5 |
Note1) The moment of input shaft conversion is only gained from the reducer, so it does not include moment of inertia of the motor.
Note2) The max. input speed is 5000rpm. Usually set to 3000rpm or less.
Note3) The permissble radial load is indicated on the center of the output shaft.
Note4) All values are within the range corresponding to helical gear.
2)When input speed is 2000rpm
| Product NO. | Reduction Ratio | Motor | Output Shaft Speed (rpm) | Standard Output Torque (N.m) | Instantaneous max.Output Torque (N.m) | Permissible Radial Load (N) | Permissible Axial Load (N) | Internal Moment Ohnertia Of Input Shaftconversion (x10-4 kg.m2) | Perrmissible Output Torque (N.m) | Instantaneous Max. Permissible Output Torque (N.m) |
| 78ZDR | 3 | 400 | 666 | 5.01 | 15.0 | 900 | 450 | 0.913 | 6.86 | 20.6 |
| 5 | 200 | 400 | 3.82 | 11.5 | 1120 | 560 | 0.363 | 6.57 | 19.7 | |
| 400 | 8.35 | 25.1 | 0.713 | 11.5 | 34.3 | |||||
| 9 | 100 | 222 | 2.35 | 7.04 | 1340 | 670 | 0.275 | 9.70 | 29.2 | |
| 200 | 6.64 | 19.9 | ||||||||
| 15 | 100 | 133 | 3.91 | 11.7 | 1670 | 833 | 0.300 | 16.2 | 48.6 | |
| 200 | 11.1 | 33.2 | ||||||||
| 20 | 100 | 100 | 5.73 | 17.2 | 1790 | 895 | 0.294 | 21.1 | 63.3 | |
| 200 | 14.8 | 44.4 | ||||||||
| 25 | 100 | 80.0 | 7.16 | 21.5 | 1670 | 833 | 0.288 | 21.7 | 64.9 | |
| 200 | 18.5 | 55.4 | ||||||||
| 35 | 50 | 57.0 | 4.43 | 13.3 | 1900 | 950 | 0.262 | 15.5 | 46.6 | |
| 100 | 12.7 | 38.1 | ||||||||
| 45 | 50 | 44.4 | 5.80 | 17.4 | 1670 | 833 | 0.5715 | 9.50 | 28.6 | |
| 81 | 50 | 24.6 | 9.70 | 29.2 | 1670 | 833 | 0.5710 | 9.70 | 29.2 |
Note1) The moment of input shaft conversion is only gained from the reducer, so it does not include moment of inertia of the motor.
Note2) The permissble radial load is indicated on the center of the output shaft.
Note3) All values are within the range corresponding to helical gear.
Mechanism & Parts:
Double support mechanism
1.The planetary gear is placed in the middle of the output shaft.
2.The output shaft bearing is placed at both ends of the planetary gear.
3.Separate sun gear and coupling.
Compact output shaft mechanism
It adopts the design of output shaft integrated system, compact structure, high rigidity, and it can withstand large impact. Place the input coupling and the sun gear at the center of the output shaft to improve the concentricity of the components, thereby effectively controlling the gear clearance and improving the backlash of the whole gearbox.
Full needle structure
The inner bearing of the planetary gear adopts a full-needle design, the inner hole is made by a grinding process, the surface hardness is HRC60, and the cylindricity is less than 0.003mm.
Ring gear structure
The integral structure of the ring gear and the output flange improves its rigidity and reduces misassembly.
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Company Profile
FAQ
Q: What’re your main products?
A: We currently produce Brushed Dc Motors, Brushed Dc Gear Motors, Planetary Dc Gear Motors, Brushless Dc Motors, Stepper motors, Ac Motors and High Precision Planetary Gear Box etc. You can check the specifications for above motors on our website and you can email us to recommend needed motors per your specification too.
Q: How to select a suitable motor?
A:If you have motor pictures or drawings to show us, or you have detailed specs like voltage, speed, torque, motor size, working mode of the motor, needed lifetime and noise level etc, please do not hesitate to let us know, then we can recommend suitable motor per your request accordingly.
Q: Do you have a customized service for your standard motors?
A: Yes, we can customize per your request for the voltage, speed, torque and shaft size/shape. If you need additional wires/cables soldered on the terminal or need to add connectors, or capacitors or EMC we can make it too.
Q: Do you have an individual design service for motors?
A: Yes, we would like to design motors individually for our customers, but it may need some mold developing cost and design charge.
Q: What’s your lead time?
A: Generally speaking, our regular standard product will need 15-30days, a bit longer for customized products. But we are very flexible on the lead time, it will depend on the specific orders.
Please contact us if you have detailed requests, thank you ! /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Motor, Machinery, Agricultural Machinery, servo motor gearbox |
|---|---|
| Hardness: | Hardened Tooth Surface |
| Installation: | Horizontal Type |
| Layout: | Coaxial |
| Gear Shape: | Helical gear |
| Step: | Double-Step |
| Samples: |
US$ 130/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
Choosing an Agricultural Gearbox
When it comes to choosing an agricultural gearbox, you may be wondering which one is right for you. The right gearbox for your tractor is important for several reasons. Here are some factors to consider. This article will provide an overview of these components. These parts include the Bevel gearbox, the Surface finish, Ellipticity, Bearings, and more. CZPT P/L offers a range of gearboxes for many different agricultural applications. The company’s PTO Speed Reducer/Increaser is specially designed to maintain the original rotation of PTO output.
Bevel gearboxes
Agricultural bevel gearboxes have high load capacity, making them an excellent choice for heavy-duty machines. Bevel gearing is also popular in mechanical transmission systems, such as those found on tractor transmission systems. Modern harvesters and other agricultural equipment require high-performance gearboxes to maintain efficient performance. To meet these requirements, agricultural equipment OEMs trust the Bevel gearboxes manufactured by CZPT Gearbox Company.
Unlike conventional worm gears, bevel gears use multiple shafts to transmit power. The bevel gears have three types of shafts, namely, hollow, projecting, and double-extended. In addition to being hollow, bevel gears can have additional shafts installed opposite the input shaft. They are available in a standard mount, aluminum housing, and three shaft types: double-extended, hollow, and projecting.
Agricultural bevel gearboxes are typically made from closed-grain cast-iron, although higher-sized models are made from SG 500/7 material. The screw is made from Cr-Mo medium carbon steel, which is hardened and tempered to maintain high core strength. A tapered roller bearing is mounted in the housing and is designed to carry heavy axial and radial loads. These gearboxes are also widely used in mixing, distribution, and cleaning machinery.
Bevel gearboxes for agricultural equipment are primarily used in agricultural machinery applications. Agricultural machinery often uses a PTO to transmit torque, but can only provide it at low speeds. Because of this, gearboxes are used for low-speed, massive-torque applications. Soil preparation and crop treatment are two common uses for these gearboxes. They are also useful in cement mixers.
Surface finish
In engineered gearboxes, the surface finish of the gear tooth surfaces is critical for smooth operation. Microscopic examination of gear tooth surfaces reveals a fine, unidirectional pattern. Traditionally used finishing methods include hob shaving, gear grinding, and honing. These techniques can improve the overall finish, but they also have their drawbacks. To overcome these problems, manufacturers use modern machine tooling techniques.
Agricultural gearboxes must be free from casting defects and mechanical damage. The processing surface must be flawless, with the ellipticity of the shaft hole no greater than 0.02 mm, and the centerline unevenness of the shaft holes is less than 0.015 mm. The relationship between shafts and bearing housing must be within 0.6 mm. These standards are crucial for the operation of agricultural machinery gearboxes.
Earlier, the gears were made of H11 and H13 tool steel, which progressively weakened after 20 gears. The tempering temperature is five to seven degrees Celsius or ten degrees Fahrenheit, depending on the steel used. To address this problem, Alloy 718 was developed. The alloy improved the life of die inserts, which reduced the overall cost. Further, the improved surface finish of agricultural gearboxes helped the customers reduce operating costs.
Ellipticity
A number of tasks require the use of an agricultural gearbox. These tasks can range from gardening to maintaining green spaces. These gearboxes transmit power from the input shaft to the output shaft, facilitating the change in direction, speed, or rotation. A quality gearbox is vital for the performance of agricultural machinery. Consider the type of operation you will be performing before buying one. You will also need to decide whether you will lubricate it.
An CZPT P/L Gearbox is one of their products. The company offers a full line of agricultural gearboxes at competitive prices. These gearboxes are designed to reduce input shaft speed and increase the PTO speed. The PTO Speed Reducer/Increaser is specially designed for this application. It helps maintain the original rotation of the PTO output shaft. It is suitable for various agricultural applications, including harvesters, balers, and cultivators.
An agricultural gearbox has an elliptic nature. It rotates around an axle core 90 degrees to create a bias state. The axle core of an agricultural gearbox rotates at a 90-degree angle to keep the shaft of the farming arbor in a neutral state. The bias state reduces the rotary driving force and reduces the amount of energy used in the operation. If a gearbox is designed correctly, it will keep a desired rotation torque.
Bearings
Agricultural gearboxes require high-quality bearings, and the global market is undergoing a transformation as more agricultural equipment becomes mechanized. The demand for bearings in agricultural equipment is expected to increase in the future, as cropping cycles will become shorter, and machinery will be used more intensively. Consequently, the wear on agricultural gear teeth and bearings will increase. This will result in a higher replacement rate for these parts.
Agricultural gearboxes must be able to withstand the high demands placed on them by the mounted farming implements. Harrows are a common example, and their disc-shaped attachments work to mix the top layer of soil. Because of their high demands, they must rotate continuously, and no matter what the terrain, they must be easy to run. Moreover, customised bearings will provide better seals.
In a study of 53 different agricultural gearboxes conducted by CZPT UK, they simulated 73 gear selections to find the right type of bearing. The simulation model took four weeks to set up and seven hours to run. As a result, CZPT always selects the “best bearing for the job” – a fitting solution. As such, CZPT understands the end user’s needs.
Quality of materials
Agricultural gearboxes play a vital role in the production of food. With the world’s population increasing, the need for food will also increase, and that means a greater need for efficient gearboxes. To make this happen, gearboxes must be able to withstand a variety of environmental conditions, including high and low temperatures, operation in arid and moist environments, and safety regulations.
A bevel gearbox has spiral bevel pinions that transmit rotational power to the axle. It is used in a variety of agricultural applications and is available in a range of ratios, horsepower, and configurations. This right-angle gear drive is widely used in portable grain elevators and grain carts. It has a 15-mm shaft diameter and is compatible with offset rotary fillers and hollow output shafts.
The gear box of a tractor is usually made of grey cast iron. Grey cast iron is a great choice for this component because it provides good wear resistance and vibration dampening. Belt pulleys are also made from grey cast iron. Large belt pulleys are made by casting processes. Similarly, the brake drum material needs to be high-quality to be effective. It is generally made of grey iron ASTM A48 Class 35.
editor by Dream 2024-05-16