To solve the vibration problem of cycloidal pin wheel reducer, swing movable teeth reducer are few teeth difference planetary gear transmission type, the shock wave device system for the eccentric shaft type. In order to balance the inertia force, the shock wave device system adopts the double row structure, brings additional inertia couple. The cycloid pin wheel reducer tosmaller space arm bearing, inadequate quality of eccentric device can removethe shock to balance the shock wave device, turning arm bearing, cycloidal pin wheel three form of uneven quality, so the inertial couple go out, in order to improve the bearing capacity of cycloid pin gear transmission,eliminate the additional dynamic load double row structure brings, somebody puts forward four rows of cycloidal gear structure, theoretically can completely eliminate the drawbacks of inertia moment of couple brought, but the structure is complex, the assembly process of complex, dynamic asymmetrydouble symmetric mechanism brings the problems will be more serious, a lot ofkey technologies to achieve the expected to solve.

Pin output mechanism of germanium is suspended structure, affected by the processing precision, uneven stress, not only affects the noise andefficiency, but also easy to produce a pin shaft fracture failure. The cycloid wheel and output shaft disc pin hole machining is difficult to guarantee the high accuracy, the additional dynamic load, vibration and noise, high power transmission is difficult to achieve, 75kW above thecycloid pin wheel reducer home still cannot make. Cycloidal pin wheel reducerin John out large torque under the condition of larger diameter, pin hole, afew more, radial size increases, more than the involute NGW reducer, its application in metallurgy, mining, coal, heavy machinery Limited, such ascoal mine machinery seldom used cycloidal pin gear speed reducer device.Swing movable teeth reducer without W John out mechanism, turning arm bearingstrength requirements, have larger space, by removing part of the quality on the eccentric disc method can be completely balanced inertia force and theanger of the couple. So the swing movable teeth reducer to heavy machinerydevelopment than the cycloid pin wheel reducer has greater superiority.