The invention provides a hoisting machinery overspeed protection clutch device and relates to the technical field of hoisting machinery safety protection. The hoisting machinery overspeed protection clutch device comprises a driven ratchet wheel rotationally installed on a supporting end cover, a loading mechanism connected with the end portion of the driven ratchet wheel, a driving hub fixedly connected with the supporting end cover, a driving ratchet wheel which is coaxially arranged with the driven ratchet wheel and can be clamped with the driven ratchet wheel after being connected with thedriven ratchet wheel in a cooperation manner, a first spring which is arranged between the driving ratchet wheel and the driven ratchet wheel and provides pretightening force Fd, and a clutch shoe which is arranged between the driving ratchet wheel and the driving hub and can exert axial pushing force Ft to the oblique plane of the driving ratchet wheel through centrifugal force in the rotation process. According to the hoisting machinery overspeed protection clutch device, a total-mechanical structure is adopted, it is guaranteed that reliable protection can still be achieved when the systemis blacked out, the protection device is designed into an integrated independent component and connected with a rotating component of a hoisting mechanism, the universality and the adaptation are relatively good, and the protection device can be appropriate for overspeed protection of various hoisting machinery.
本发明提供一种起重机械超速保护离合装置,涉及起重机械安全防护技术领域,该起重机械超速保护离合装置包括转动安装在支撑端盖上的从动棘轮;与从动棘轮的端部连接的负载机构;与支撑端盖固定连接的主动轮毂;与从动棘轮同轴设置且与从动棘轮配合连接后可相互卡接的主动棘轮;设置在主动棘轮和从动棘轮之间且提供预紧力F的第一弹簧;设置在主动棘轮和主动轮毂之间且可在转动过程中通过离心力对主动棘轮的斜面施加轴向推力F的离心块;本发明采用全机械结构,保证在系统失电时仍能可靠保护,保护装置设计成一体的独立部件,与起升机构的旋转部件相连,通用性和适应性较好,可适用于各种起重机械的超速保护。
Hoisting machinery overspeed protection clutch device
一种起重机械超速保护离合装置
2020-08-07
Patent
Electronic Resource
Chinese
IPC: | F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / B66B Aufzüge , ELEVATORS / B66C Krane , CRANES / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |