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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 transmissionThe 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 two wheel teeth in the biting, meshing, biting out and disengaging four 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.
| Model | Reduction ratio | Rated torque at input 2000r/min | Permissible peak 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 |
Suzhou 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.
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
