The invention discloses a telescopic self-lubricating low-rotational-inertia pulley block which comprises an oil cylinder, a piston rod arranged in the oil cylinder, a base connected with the piston rod, two supporting plates fixedly connected with the base, and a plurality of pulleys rotationally connected between the two supporting plates and used for winding a traction rope. The anti-falling covers are fixed to the side ends of the two supporting plates and used for limiting the hoisting rope and preventing the hoisting rope from falling off from the pulley in the loose state; and the oil cylinder is used for pushing the pulley to move so as to eliminate the extension of the hoisting rope, so that the ejection stroke is consistent with the piston stroke. The traction rope can be prevented from falling off, the self-lubricating pulley block is low in rotational inertia, large in bearing pressure and high in speed, and the requirements of the catapult for high pressure, high speed and the like of the pulley are met.

    本发明公开了一种伸缩型自润滑低转动惯量滑轮组,包括:油缸,设置在油缸内的活塞杆,与活塞杆连接的基座,与基座固连的两个支撑板,转动连接在两个支撑板之间的多个滑轮,用于曳引绳的缠绕;固定在两个支撑板侧端的防脱落罩,用于对曳引绳进行限位,防止曳引绳松弛状态时从滑轮上脱落;所述油缸用于推动滑轮移动,以消除曳引绳伸长,使得弹射行程与活塞冲程一致。本发明可防止曳引绳脱落,自身具有自润滑、低转动惯量、承压力大、速度高的滑轮组,以解决弹射器对滑轮高压高速等需求。


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    Title :

    Telescopic self-lubricating low-rotational-inertia pulley block


    Additional title:

    一种伸缩型自润滑低转动惯量滑轮组


    Contributors:

    Publication date :

    2023-03-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    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 / B64U / F16H Getriebe , GEARING



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