Reducers are generally used in transmission equipment with low speed and high torque.The electric motor, internal combustion engine or other electric power meshed at high speed runs through the reducer on the output shaft through the pinion on the input shaft, and the purpose of deceleration is achieved through the pinion on the input shaft.The average person also has several pairs of gears to achieve the desired reduction based on the same principle The characteristics of the gear reducer are: when transmitting power, it can separate the power; at the same time, the input shaft and the output shaft are coaxial, that is, the output shaft and the input shaft are arranged on the same main shaft.Therefore, gear reducer transmissions have been used to replace ordinary gear transmissions with speed reducers and speed changing devices in various mechanical transmission systems. The reducer is relatively large, which can realize the synthesis and decomposition of motion.As long as the type of gear transmission and gear matching scheme is selected correctly, multiple gears can be used to obtain a large transmission ratio.The transmission of the gear reducer is only used to transmit motion, and its transmission ratio can reach thousands.It should be noted that when the transmission ratio is large, the gear transmission can still maintain a compact structure and a small size.In addition, it can also realize the synthesis and decomposition of motion, and realize complex motion with various speed changes. The gear reducer has a small size, small size, compact structure and large carrying capacity.Due to the power split of the gear transmission, the center wheel forms a coaxial transmission, and the reasonable application of the internal meshing gear pair can make the gear transmission structure very compact.Also, since the multiple wheels are evenly distributed around the center wheel to share the load, each gear carries less load and the gears allow for a small modulus. In addition, the structure makes full use of the large load-carrying capacity of the internal meshing and the allowable volume of the ring gear itself, which is conducive to reducing the external size, making it small in size, very compact in structure and large in bearing capacity.Generally speaking, the overall size and gear transmission quality of ordinary gear transmissions are about 1/2~1/5 (that is, under the same load conditions) The transmission efficiency of the gear reducer is due to the symmetry of the gear transmission structure, that is, it has several evenly distributed wheels.The reaction forces acting on the center wheel and the swing arm bearing can balance each other, which helps to improve the transmission efficiency.Under the conditions of proper transmission mode selection and reasonable structural layout, the efficiency can reach 0.97~0.99.
