The invention discloses a tread sweeper. The sweeper comprises a brake head, a cylinder and a piston rod. The brake head is provided with a connecting end and a mounting end; a brake shoe is installedat the mounting end, one end, provided with a piston, of the piston rod is arranged in the cylinder in a sealed and sliding mode, an inner cavity of the cylinder is divided into a rod cavity and a rodless cavity through the piston, an air inlet hole connected with the rodless cavity is formed in the inner wall of the cylinder, and an extending end of the piston rod is movably connected with the brake head; and a sliding groove is formed in the end surface of the extending end, an connecting end extends towards the piston end and extends into the sliding groove, and a pre-tightening mechanismfor applying an axial thrust to the connecting end is arranged between the bottom surface of the sliding groove and the end surface of the connecting end. The brake head is pressed through thrust of the pre-tightening mechanism, a friction resistance is provided for rotation of the brake head, and therefore the brake head is locked in a relieving state, gaps between the upper end and the lower endof the brake shoe and a wheel set tread are kept uniform, and the brake shoe is prevented from being attached to the wheel set tread.

    本发明公开了一种踏面清扫器,包括闸瓦托、气缸和活塞杆,所述闸瓦托具有连接端和和安装端,所述安装端上安装有闸瓦,所述活塞杆具有活塞的一端密封滑设于气缸中,所述活塞将气缸内腔分为有杆腔和无杆腔,所述气缸的内壁上开设有与无杆腔连通的进气孔,所述活塞杆的伸出端与闸瓦托活动连接;所述伸出端的端面上开设有滑槽,所述连接端朝向活塞端延伸并伸入滑槽中,所述滑槽的底面与连接端的端面之间设有对连接端施加轴向推力的预紧机构。本发明利用预紧机构的推力压紧闸瓦托,为闸瓦托的转动提供摩擦阻力,从而将闸瓦托锁定在缓解状态,使得闸瓦上端、下端与轮对踏面的间隙保持均匀,防止闸瓦贴靠轮对踏面。


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    Title :

    Tread sweeper


    Additional title:

    一种踏面清扫器


    Contributors:
    ZOU WEI (author) / AI ZHENGWU (author) / LIU DEXUE (author) / KANG JIAN (author) / CHEN ZHI (author) / SUN BO (author)

    Publication date :

    2020-10-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen



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