Gear motor assembly

摘要

A gear motor assembly includes a gearbox, a motor mounted to the gearbox, a first damper and a second damper. The gearbox includes a gearing casing and a worm gear installed in the gear casing. The motor includes a stator and a rotor. The stator includes a housing. The rotor includes a motor shaft and a worm integrally rotating with the shaft. The shaft extends into the gear housing and the worm is meshed with the worm gear. The first damper is sandwiched between the gear casing and a first end of the shaft, eliminating end play between the shaft and the gear casing. The second damper is sandwiched between the motor housing and a second end of the shaft, eliminating end play between the shaft and the motor housing.

主权项

1. A gear motor assembly comprising:
a gearbox comprising a gear casing and a worm gear disposed in the gear casing; and a motor mounted to the gearbox, the motor comprising:
a stator comprising a housing:a rotor received in the housing of the stator, the rotor comprising a motor shaft, the motor shaft extending in the gear casing;a worm fixed to the motor shaft and disposed within the gear casing in mesh with the worm gear;a first damper sandwiched between an inner surface of the gear casing and a first axial end of the motor shaft remote from the motor, the first damper eliminating end play between the motor shaft and the gear casing; anda second damper sandwiched between an inner surface of the motor housing and a second axial end of the motor shaft remote from the gearbox, the second damper eliminating end play between the motor shaft and the motor housing, wherein the first damper comprises a rubber pad and a thrust cap, the thrust cap is sandwiched between the first axial end of the motor shaft and the rubber pad, and the rubber pad abuts against the inner surface of the gear casing, and wherein the first damper further comprises a holding portion fixedly located in the gear casing, the rubber pad and the thrust cap are entirely disposed in the holding portion.