Summary:The reducer is generally used for transmission equipment with low speed and high torque. The motor, internal combustion ...
The reducer is generally used for transmission equipment with low speed and high torque. The motor, internal combustion engine or other power running at high speed meshes with the small gear on the input shaft and the large gear on the output shaft to achieve the purpose of deceleration. Ordinary reducers also have several pairs of gears to achieve the ideal deceleration effect on the same principle.
The characteristics of the gear reducer are: it can divide the power when transmitting power; at the same time, its input shaft and output shaft are coaxial, that is, the output shaft and the input shaft are set on the same main axis. Therefore, gear reducer transmission has been used to replace ordinary gear transmission as a speed increaser and speed change device in various mechanical transmission systems.
The reducer is relatively large, which can realize the synthesis and decomposition of motion. With proper selection of the type of gearing and gear matching scheme, several gears can be used to achieve large ratios. The gear reducer transmission is only used to transmit motion, and its transmission ratio can reach several thousand. 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 volume. In addition, it can also realize the synthesis and decomposition of motion, and realize complex motion with various speed changes.
The gear reducer is small in size, small in mass, compact in structure and large in bearing capacity. Since the gear transmission has a power split, the center wheel forms a coaxial transmission, and the internal meshing gear pair is reasonably applied, and the gear transmission structure can be very compact. In addition, since the multiple wheels are evenly distributed around the center wheel to share the load together, each gear bears less load, and these gears allow for smaller modules.
In addition, the structure makes full use of the large bearing capacity of the internal meshing and the allowable volume of the inner gear itself, which is conducive to reducing the outer size, making it small in size, small in mass, very compact in structure and large in carrying capacity. Generally speaking, the overall size and mass of the gear transmission are about 1/2~1/5 of the ordinary gear transmission (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, and the reaction forces acting on the center wheel and the bearing of the rotating arm can balance each other, thereby helping to improve the transmission efficiency. Under the conditions of proper transmission mode selection and reasonable structural arrangement, the efficiency can reach 0.97~0.99.waylead.com.cn