The invention discloses an adjustable bracket of a crane, and relates to the technical field of cranes, the adjustable bracket comprises a base, and mounting racks are oppositely arranged on the base; a winding wheel is rotatably arranged between the mounting frames on the two sides, and the winding wheel is fixedly connected with the output end of a driving motor arranged on the outer sides of the mounting frames; wherein a rope is wound on the winding wheel, and the tail end of the rope is fixedly connected with a hook; one side of the winding wheel is fixedly connected with a limiting wheel, a plurality of groups of friction blocks are distributed on the circumferential side of the limiting wheel in a circumferential array mode, and each group of friction blocks is connected with a driving part which drives the friction blocks to synchronously get close to or get away from the limiting wheel; in the unwinding process of the winding wheel, along with reduction of a rope wound on the surface of the winding wheel, the friction blocks are driven by the driving pieces to make contact with the limiting wheel in the process, so that the load force borne by the winding wheel is kept in a constant state all the time through friction force, and then the output stability of the driving motor is guaranteed; the service life is prolonged.
本发明公开了一种起重机可调节支架,涉及起重机技术领域,包括底座,所述底座上呈相对布设有安装架;位于两侧所述安装架之间可转动布设有绕卷轮,绕卷轮与布设于安装架外侧的驱动电机输出端固定连接;其中,所述绕卷轮上绕卷有绳索,绳索末端固定连接有挂钩;所述绕卷轮一侧固定连接限位轮,限位轮周侧呈圆周阵列布设若干组摩擦块,各组摩擦块与驱动其朝向限位轮方向同步靠近或远离的驱动件连接;本发明的绕卷轮在进行放线的过程中,随着其表面绕卷绳索的减小,本实施例在此过程中通过各组驱动件驱动摩擦块与限位轮接触,以通过摩擦力保持该绕卷轮所受荷载力始终处于恒定的状态,进而保证驱动电机输出的稳定性,延长其使用寿命。
Adjustable bracket of crane
一种起重机可调节支架
2023-11-28
Patent
Elektronische Ressource
Chinesisch
Crane having a crane jib, in particular a bracket crane
Europäisches Patentamt | 2015
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