The invention discloses a worm wheel type ratchet wheel type hoisting mechanism. The worm wheel type ratchet wheel type hoisting mechanism comprises a motor, a winding drum and a pawl type worm wheeland worm one-way force transmission speed reducing mechanism, the motor comprises an ascending motor and a descending motor, and the pawl type worm wheel and worm one-way force transmission speed reducing mechanism comprises an output shaft, a centering disc, a ratchet wheel, a worm wheel, a pawl and a worm, wherein the ratchet wheel is fixed on the output shaft and rotates along with the output shaft, the centering disc and the worm wheel are sleeved on the output shaft through bearings and do not rotate along with the output shaft, the centering disc is located on the left side of the ratchet wheel, the worm wheel is located on the right side of the ratchet wheel, one end of the connecting shaft is fixed on the centering disc, the other end of the connecting shaft is fixed to the worm wheel, the pawl is arranged on the connecting shaft, one end of the spring is fixed to the centering disc, the other end of the spring is fixed in the middle of the pawl, the worm wheel is meshed with the worm, the ascending motor is connected with the left end of the winding drum, the right end of the winding drum is connected with the output shaft, and the descending motor is connected with the worm. The worm wheel type ratchet wheel type hoisting mechanism has an automatic locking function, and the ascending motor and the descending motor only need to rotate unidirectionally, so that the failure rate is low.
本发明公开了一种蜗轮式棘轮型卷扬机构,包括电机、卷筒、棘爪式蜗轮蜗杆单向传力减速机构,所述电机包括上升电机、下降电机,所述棘爪式蜗轮蜗杆单向传力减速机构包括输出轴、定心盘、棘轮、蜗轮、棘爪、蜗杆,棘轮固定在输出轴上并随输出轴转动,定心盘、蜗轮通过轴承套在输出轴上但不随输出轴转动,定心盘位于棘轮左侧,蜗轮位于棘轮右侧,连接轴一端固定在定心盘上,另一端固定在蜗轮上,棘爪设置在连接轴上,弹簧一端固定在定心盘上,另一端固定在棘爪中部,蜗轮与蜗杆相啮合,所述上升电机与卷筒左端相连接,卷筒右端连接输出轴,下降电机连接蜗杆。其具有自动锁止功能,上升、下降电机只需单向转动,故障率低。
Worm wheel type ratchet wheel type hoisting mechanism
蜗轮式棘轮型卷扬机构
2020-06-16
Patent
Electronic Resource
Chinese
IPC: | B66D Haspeln , CAPSTANS |
Ratchet wheel type parking mechanism applicable to hand brake apparatus
European Patent Office | 2015
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