The invention discloses an electromagnetic power-off brake device for soft braking for a winch and belongs to the technical field of winch equipment. The problem of rapid falling of the winch during apower-off condition is solved. According to the technical key points, the electromagnetic power-off brake device comprises a brake disc, a brake frame, an electromagnetic brake sleeve, a friction plate and a locking rod. The electromagnetic power-off brake device is installed on a winding drum shaft of the winch, during the power-off condition, the friction plate makes contact with the brake discon the side face of a winding drum of the winch firstly, friction braking is conducted, soft braking is achieved, and then the locking rod is inserted into a parking hole to instantly brake the decelerated winding drum of the winch. Through the combination of soft braking and instantaneous braking, it is guaranteed that the winding drum of the winch is braked when a winch motor is powered off, rapid stopping and accurate positioning are achieved, safe braking during power failure is guaranteed, the situation that due to sudden power failure, a lifted or dragged heavy object falls rapidly is avoided, and emergency braking can be conducted at the first time of power failure.
本发明公开了一种卷扬机用软刹车的电磁失电制动装置,属于卷扬设备技术领域,解决了卷扬机失电时急速下坠的问题,其技术要点是:包括制动盘、制动架、电磁制动套筒、摩擦片和锁止杆,通过将该电磁失电制动装置安装于卷扬机的卷筒轴上,在失电时,摩擦片先与卷扬机卷筒侧面的制动盘接触、摩擦制动,实现软刹车制动,再由锁止杆插入驻停孔将降速后的卷扬机卷筒瞬间制动;通过软刹车和瞬间制动相结合,保证在卷扬电机失电时对卷扬机卷筒制动,实现快速停车和准确定位,保证在断电时安全制动,避免因出现突发断电而导致提升或牵引重物出现急速下坠的情况出现,能够在失电的第一时间进行紧急制动。
Electromagnetic power-off brake device for soft braking for winch
一种卷扬机用软刹车的电磁失电制动装置
15.01.2021
Patent
Elektronische Ressource
Chinesisch
IPC: | B66D Haspeln , CAPSTANS |