Product Description
Product Description
The HMHD-lll series harmonic reducer has a ultra-thin compact structure. The axial length has been cut by 50% compared to HMHS series. The flexible spline adopts an ultra-thin hollow flanged structure, assembled with high rigidity cross roller bearings in the output end. Very suitable for applications that require flat designs. It’s currently available in specifications ranging from 14 to 32 sizes. Mainly used in high precision fields such as aerospace, robotics, semiconductors, power inspection, and automation equipment.
Principle of harmonic gear transmission
The harmonic gear drive was invented by the American inventor C.W.Musser in 1955. It is a new transmission mode using the elastic deformation of flexible working components to carry out movement or power transmission. It breaks through the mode of mechanical transmission using rigid components and uses a flexible component to achieve mechanical transmission. Thus, a series of special functions that are difficult to achieve with other drives are obtained. Because the deformation process of the intermediate flexible component is basically a symmetrical harmonic, it is named. In addition to the Soviet Union called this transmission waveform drive or flexible wheel drive, the United States, Britain, Germany, Japan and other countries are called “harmonic drive”.
Harmonic deceleration principle
The deceleration principle of harmonic gear transmission refers to the use of the relative motion of the flexwheel, rigid wheel and wave generator, mainly the controllable elastic deformation of the flexwheel to achieve motion and power transmission. The elliptic CAM in the wave generator rotates in the flexwheel so that the flexwheel deforms. When the flexwheel teeth and rigid wheel teeth at both ends of the long axis of the elliptic CAM of the wave generator are engaged, the flexwheel teeth at both ends of the short axis are detached from the rigid wheel teeth. The teeth between the long axis and the short axis of the wave generator are in a semi-meshing state that gradually enters the snapping along different sections of the perimeter of the flexwheel and the rigid wheel, which is called the snapping; In a semi-meshing state that gradually withdraws from engagement, it is called snapping out. When the wave generator continuously rotates, the flexwheel constantly deforms, so that the 2 wheel teeth in the biting, meshing, biting out and disengaging 4 kinds of motion constantly change their original working state, resulting in the wrong tooth movement, to achieve the active wave generator to the flexwheel movement transmission.
Product Parameters
| Model | Reduction ratio | Rated torque at input 2000r/min | Permissible CHINAMFG torque at start/stop | Permissible max.value of ave.load torque | instantaneous permissible max. torque | Permissible max.input rotational speed | Permissible max.input rotational speed | Backlash(arc sec) | Transmission accuracy(arc sec) |
| Nm | Nm | Nm | Nm | r/min | r/min | ≤ | ≤ | ||
| 14 | 50 | 3.5 | 11.4 | 4.6 | 23 | 8000 | 3500 | 20 | 90 |
| 80 | 5.1 | 15 | 6.2 | 29 | 20 | 90 | |||
| 100 | 5.1 | 18 | 7 | 33 | 20 | 90 | |||
| 17 | 50 | 10.5 | 22 | 17 | 46 | 7000 | 3500 | 20 | 90 |
| 80 | 14 | 29 | 21 | 54 | 20 | 90 | |||
| 100 | 15 | 35 | 26 | 67 | 20 | 90 | |||
| 20 | 50 | 16 | 37 | 23 | 66 | 6000 | 3500 | 20 | 90 |
| 80 | 23 | 49 | 28 | 78 | 10 | 90 | |||
| 100 | 27 | 54 | 32 | 90 | 10 | 90 | |||
| 25 | 50 | 26 | 66 | 36 | 121 | 5500 | 3500 | 20 | 60 |
| 80 | 42 | 91 | 62 | 157 | 10 | 60 | |||
| 100 | 45 | 105 | 71 | 175 | 10 | 60 | |||
| 32 | 50 | 50 | 143 | 71 | 255 | 4500 | 3500 | 20 | 60 |
| 80 | 79 | 202 | 126 | 350 | 10 | 60 | |||
| 100 | 91 | 221 | 143 | 399 | 10 | 60 |
Detailed Photos
Company Profile
HangZhou Yijiaang Automation Technology Co., Ltd. was established in 2018, specializing in the application development, sales and technical services of transmission components. Main business: planetary reducer, harmonic reducer, RV reducer, DD motor, linear motor, linear module, rotary spline screw, hollow rotary platform, CAM splitter and other products. Widely used in: CNC machine tools, packaging machinery, printing machinery, automation equipment, joint robots, medical equipment, AGV and many other fields. The company regards “providing quality products and services” as its due responsibility.
The company adheres to the spirit of technological innovation and customer service, with a positive attitude of continuous endeavour, creates the value of “quality is the core”, establishes the goal of “professional perfection”, and achieves the corporate vision of “making the world move”. Focus on transmission products technical services.
FAQ
Q: What should I provide when I choose gearbox/speed reducer?
A: The best way is to provide the motor drawing with parameter. Our engineer will check and recommend the most suitable gearbox model for your refer.
Or you can also provide below specification as well:
1) Type, model and torque.
2) Ratio or output speed
3) Working condition and connection method
4) Input mode and input speed
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| Application: | Machinery, Agricultural Machinery, Car, Robot |
|---|---|
| Hardness: | Hardened Tooth Surface |
| Installation: | Horizontal Type |
| Layout: | Coaxial |
| Gear Shape: | Cylindrical Gear |
| Step: | Single-Step |
| Samples: |
US$ 220/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
Case Studies: Successful Implementations of Agricultural Gearboxes
Several case studies highlight the successful integration of agricultural gearboxes in farming machinery:
- Case Study 1: Tractor Versatility
A farm in the Midwest implemented tractors equipped with adjustable gearboxes. The gearboxes allowed the tractors to seamlessly switch between plowing, planting, and harvesting tasks. The ability to customize speed and torque ratios improved efficiency and reduced the need for multiple machines.
- Case Study 2: Orchard Management
An orchard in California utilized specialized gearboxes in its mechanized harvesters. These gearboxes facilitated controlled movement and precise positioning of the harvesters among trees. The adaptability of the gearboxes enabled the harvesters to navigate the orchard’s uneven terrain while minimizing damage to trees and fruit.
- Case Study 3: Precision Planting
A farm in Europe integrated precision planting machinery with gearboxes that offered adjustable gear ratios. This allowed for precise control over seed placement and depth. The gearboxes played a vital role in achieving uniform crop emergence and optimizing seed-to-soil contact.
- Case Study 4: Multi-Tasking Implements
A farming cooperative in Australia utilized multi-tasking implements equipped with versatile gearboxes. These implements could seamlessly switch between tasks such as plowing, harrowing, and fertilizing. The gearboxes’ ability to manage torque and speed ratios ensured optimal performance across various tasks.
- Case Study 5: Soil Conservation
A farm in Africa adopted gearboxes in its soil conservation practices. By attaching specialized implements with adjustable gearboxes to their tractors, the farm effectively controlled soil erosion and improved water infiltration rates. The gearboxes allowed for precise adjustments based on soil type and slope.
These case studies illustrate the impactful role of agricultural gearboxes in enhancing efficiency, versatility, and productivity across a spectrum of farming applications.
Factors to Consider When Selecting the Right Gearbox for Farm Machinery
Choosing the appropriate gearbox for farm machinery is crucial to ensure optimal performance and efficiency. Here are the key factors to consider when selecting the right gearbox:
- Power and Torque Requirements: Assess the power and torque needed for the specific task the machinery will perform. Select a gearbox that can handle the required load without straining the components.
- Speed Variation: Determine if the machinery requires variable speed control for different tasks. Some gearboxes offer adjustable speed options to match varying conditions and applications.
- Task Compatibility: Ensure that the chosen gearbox is compatible with the implements and attachments the machinery will use. Different tasks may require different gear ratios and torque capabilities.
- Efficiency: Opt for gearboxes known for their efficiency in power transmission. Efficient gearboxes minimize energy losses and maximize the output of the machinery.
- Durability: Farming environments can be demanding, so select a gearbox that is built to withstand the conditions, such as exposure to dirt, moisture, and impacts.
- Size and Weight: Consider the available space and weight limits on the machinery. Choose a gearbox that fits within these constraints without compromising performance.
- Maintenance: Evaluate the maintenance requirements of the gearbox. Gearboxes that are easy to maintain and service can minimize downtime and keep the machinery running smoothly.
- Cost: Balance the initial cost of the gearbox with its long-term benefits and performance. Investing in a quality gearbox can lead to better overall cost-effectiveness over time.
- Compatibility: Ensure that the gearbox is compatible with the power source (such as the tractor’s power take-off) and other components of the machinery.
- Manufacturer Reputation: Choose gearboxes from reputable manufacturers with a history of producing reliable and high-quality agricultural machinery components.
By carefully considering these factors, farmers can select the right gearbox that meets the specific needs of their farm machinery, leading to enhanced efficiency, productivity, and longevity of equipment.
Key Features of a Durable and Reliable Agricultural Gearbox
A durable and reliable agricultural gearbox is crucial for the efficient operation of farming equipment and machinery. The following key features contribute to the durability and reliability of agricultural gearboxes:
- High-Quality Materials: Agricultural gearboxes are often exposed to harsh conditions, including dust, debris, and varying weather. Using high-quality materials, such as strong alloy steels, can enhance the gearbox’s resistance to wear, corrosion, and other forms of deterioration.
- Rugged Construction: The gearbox should have a robust and rugged construction to withstand the stresses and strains associated with agricultural tasks. Reinforced housings, precision machining, and robust seals can help prevent damage and ensure longevity.
- Effective Lubrication System: Proper lubrication is vital to reduce friction, dissipate heat, and prevent premature wear. Agricultural gearboxes should be equipped with efficient lubrication systems that ensure all components are adequately lubricated, even during extended operation.
- Sealing and Protection: Dust, dirt, and moisture are common challenges in agricultural environments. Effective sealing mechanisms, such as gaskets and seals, prevent contaminants from entering the gearbox and protect internal components from damage.
- Heat Dissipation: The gearbox should be designed to dissipate heat effectively, especially during prolonged operation. Overheating can lead to lubrication breakdown and premature wear. Cooling fins and adequate ventilation can help maintain optimal operating temperatures.
- Gear Quality and Precision: High-quality gears with accurate tooth profiles and precision manufacturing ensure smooth and efficient power transmission. Properly machined gears reduce noise, vibration, and the risk of gear failures.
- Advanced Gear Design: Some agricultural gearboxes may feature advanced gear designs, such as helical or planetary gears. These designs offer improved efficiency, reduced noise, and increased load-bearing capacity compared to traditional spur gears.
- Overload Protection: Incorporating overload protection mechanisms, such as shear pins or clutch systems, can prevent damage to the gearbox and other connected components in case of sudden high loads or jams.
- Easy Maintenance Access: The gearbox should be designed with maintenance in mind. Accessible inspection points, drain plugs, and fill ports make it easier for operators to perform routine maintenance tasks.
Manufacturers often engineer agricultural gearboxes to meet these requirements, ensuring that they can withstand the demanding conditions of farming operations and contribute to the reliable performance of agricultural machinery.
editor by CX 2024-01-23