The invention relates to the technical field of speed reduction equipment, and discloses a rope speed reducer for self-deceleration. The rope speed reducer comprises a mounting bracket, wherein two sides of the mounting bracket are fixedly connected with shells; two sides of the middle part of each shell are movably sleeved with a first pulley and a second pulley respectively; and cavities are formed in the parts, at two ends of the second pulley, of the shells. Through the arrangement of an ejection mechanism, when a rope descends at an overspeed, the first pulleys rotate quickly and synchronously, so that supporting blocks are thrown out under the action of centrifugal force; a circular ring formed by the supporting blocks is limited by the inclined surface of the inner wall of a mounting cavity to overcome the tension of a reset spring to move inwards, and meanwhile, the first pulleys are driven to move towards one side close to the second pulleys, so that the rope below is furtherpressed, the descending resistance of the rope is further increased, and the rope can be decelerated; and when a friction block cannot provide enough friction resistance due to abrasion, the rope canstill be decelerated, so that the safety of goods or people during rope descending is ensured.
本发明涉及减速设备技术领域,且公开了一种自减速用绳索减速器,包括安装支架,安装支架的两侧均固定连接有壳体,壳体中部的两侧分别活动套接有第一滑轮、第二滑轮,壳体位于第二滑轮两端的内部均开设有空腔。通过顶出机构的设置,当绳索超速下降时,第一滑轮也快速同步旋转,导致支撑块在离心力的作用下被甩出,由支撑块组成的圆环将会受到安装腔内壁斜面的限制而克服复位弹簧的拉力向内侧运动,同时带动第一滑轮向靠近第二滑轮的一侧运动,进一步的对下方的绳索进行压迫,进一步增大绳索下降的阻力,能够对绳索减速,而且在摩擦块由于磨损而不能提供足够摩擦阻力时,依旧可以对绳索进行减速,确保货物或者人们在绳索下降时的安全。
Rope speed reducer for self-deceleration
一种自减速用绳索减速器
2021-02-02
Patent
Electronic Resource
Chinese