The invention discloses a three-stage double-anchor type continuous jack which comprises a base sliding plate, a double-anchor type tool anchor, a guide frame, a threading frame, a front jack (first stage), a rear jack (second stage), an auxiliary jack (third stage), a supporting rod, a counter-force support and the like. According to the three-stage double-anchor type continuous jack, in the continuous traction process, when the safety risk that large-weight materials are difficult to drag and move and tensile force on a steel strand is too large, and the steel strand needs to be retreated and released, oil pressure in the first-stage jack and oil pressure in the second-stage jack are unloaded, and then the first-stage jack and the second-stage jack are unloaded; the traction force on the first-stage continuous jack and the traction force on the second-stage continuous jack are released through the third-stage auxiliary jack, the residual pulling force on the steel strand is further reduced, meanwhile, a rubber friction type clamping piece is jacked in through an ejector rod in a double-anchor tool anchor when oil return of an oil cylinder reaches the bottom to eject out the tool clamping piece, and then the steel strand is pulled out; the force on the rubber friction type clamping piece in the double-anchor type tool anchor is increased, then the steel strand is clamped, and the speed and vibration when the steel strand rebounds are reduced through friction force generated when the steel strand is clamped by the rubber friction type clamping piece.

    本发明公开了一种三级双锚式连续千斤顶,包括底座滑板、双锚式工具锚、导向架、穿线架、前千斤顶(一级)、后千斤顶(二级)、辅助千斤顶(三级)、撑杆、反力支架等结构组成。本发明提供一种三级双锚式连续千斤顶,在连续牵引过程中,发生大体重物资难以牵引移动,导致钢绞线上拉力过大存在拉断的安全风险需要回退释放钢绞线时,先通过将第一、二级千斤顶中的油压卸荷之后,再通过第三级辅助千斤顶释放一、二级连续千斤顶上的牵引力,进一步减小钢绞线上的残余拉力,同时通过双锚式工具锚中的顶杆在油缸回油到底顶出工具夹片的同时,将橡胶摩擦式夹片顶进,使双锚式工具锚中的橡胶摩擦式夹片上的力增大,进而夹紧钢绞线,通过橡胶式摩擦夹片夹紧钢绞线所产生的摩擦力来降低钢绞线回弹时的速度和震动。


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    Titel :

    Three-stage double-anchor type continuous jack


    Weitere Titelangaben:

    一种三级双锚式连续千斤顶


    Beteiligte:
    ZHANG LIYUN (Autor:in) / WANG NING (Autor:in) / ZUO XINGJIAN (Autor:in) / CHEN QIANLIN (Autor:in) / ZHU XI (Autor:in) / WU CUNYIN (Autor:in) / NIU YAOXIONG (Autor:in) / LI QINGYANG (Autor:in) / WANG XINGLIN (Autor:in) / WANG JIANKANG (Autor:in)

    Erscheinungsdatum :

    2022-12-09


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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 / E01D BRIDGES , Brücken



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