Generally speaking, the size and quality of gear transmission is about 1/2 ~ 1/5 of ordinary gear transmission (that is, under the same load condition). The transmission efficiency of gear reducer is due to the symmetry of the gear transmission structure, that is, it has several Evenly distributed wheels, the reaction force acting on the center wheel and the bearing of the rotating arm can be balanced with each other, thereby helping to improve the transmission efficiency. The reducer is relatively large and can realize the synthesis and decomposition of motion.
The characteristics of gear reducers are: it can split power when transmitting power; at the same time, its input shaft and output shaft have coaxiality, that is, the output shaft and The input axes are all set on the same main axis. In addition, since multiple wheels are evenly distributed around the center wheel to share the load, each gear bears a small load, and these gears allow a smaller module to be used. In addition, this structure makes full use of the large load-bearing capacity of the internal gear and the allowable volume of the ring gear itself, which is beneficial to reduce the outer size, making it small in size, small in mass, very compact in structure and large in load capacity.
A high-speed motor, internal combustion engine or other power is used to achieve the purpose of deceleration by meshing the reducer with the small gear on the input shaft and the large gear on the output shaft. Therefore, gear reducer transmission has been used to replace ordinary gear transmission, and as a speed increaser and transmission device in various mechanical transmission systems.97~0. Because the gear transmission has power splitting, the center wheel forms a coaxial transmission, and the internal meshing gear pair is reasonably used, and the gear transmission structure can be very compact.
Reducers are generally used for transmission equipment with low speed and large torque. The gear reducer is small in size, small in mass, compact in structure and large in carrying capacity. Ordinary reducers also have several pairs of gears using the same principle to achieve the desired reduction effect. In addition, it can also realize the synthesis and decomposition of motions, and realize complex motions with various speed changes. It should be pointed out that when the transmission ratio is large, the gear transmission can still maintain the advantages of compact structure, small mass, and small size. As long as the type of gear transmission and gear matching scheme are correctly selected, several gears can be used to obtain a large transmission ratio. The gear reducer transmission China Parallel Shaft Gearboxes is only used to transmit motion, and its transmission ratio can reach several thousand. Under the conditions of proper transmission mode selection and reasonable structure layout, the efficiency can reach 0
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