The invention discloses a double-stage pressurized hydraulic cylinder. The double-stage pressurized hydraulic cylinder comprises a cylinder body, a piston, a piston rod, a first oil port and a secondoil port, wherein one end of the cylinder body is designed as a cylinder bottom, and the other end of the cylinder body is designed as a cylinder body opening part; the piston and a rod head plug bodyare fixedly arranged at the two ends of the piston rod respectively, the cylinder body opening part is arranged on the rod head plug body in a sleeved mode, and the rod head plug body is glidingly and hermetically matched with the cylinder body opening part in the axial direction of the piston rod; a sealing ring is fixedly arranged on the inner wall of the cylinder body and is arranged on the piston rod in a sleeved mode, and the piston rod is glidingly and hermetically matched with the sealing ring in the axial direction of the piston rod; a space formed by the inner wall of the cylinder body, the sealing ring and the rod head plug body in a surrounding mode forms a first oil chamber, a space formed by the inner wall of the cylinder body, the piston and the sealing ring in a surroundingmode forms a second oil chamber, and a space formed by the inner wall of the cylinder body, the cylinder bottom and the piston in a surrounding mode forms a third oil chamber; and the first oil portcommunicates with the first oil chamber and the third oil chamber, and the second oil port communicates with the second oil chamber. The ejection force of the hydraulic cylinder is increased by improving the structure of the hydraulic cylinder.

    本发明公开了双级增压液压缸,包括缸体,活塞,活塞杆,第一油口和第二油口,缸体一端设为缸底,另一端设为缸体开口部,活塞杆的两端分别固定安装活塞和杆头塞体,缸体开口部套设于杆头塞体上,且杆头塞体与缸体开口部沿活塞杆轴向方向滑动密封配合;缸体内壁固定安装密封环,密封环套设于活塞杆上,且活塞杆与密封环沿活塞杆轴向方向滑动密封配合;缸体内壁、密封环和杆头塞体围绕成的空间构成第一油腔,缸体内壁、活塞和密封环围绕成的空间构成第二油腔,缸体内壁、缸底和活塞围绕成的空间构成第三油腔;第一油口连通第一油腔和第三油腔,第二油口连通第二油腔。该装置通过对液压缸结构的改进实现了液压缸推顶力的提升。


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    Title :

    Double-stage pressurized hydraulic cylinder


    Additional title:

    双级增压液压缸


    Contributors:
    WANG QIANG (author) / GUAN ZEXU (author) / WANG MING (author) / ZHU LING (author)

    Publication date :

    2020-10-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / 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 / F16J Kolben , PISTONS



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