The invention provides a piston rod assembly and a pushing jack. The piston rod assembly comprises a rod body and a magnetic ring installation seat, wherein the rod body is provided with an outer end, a stepped hole which is formed in the axial direction of the rod body is formed in the end surface of the outer end, and comprises a test hole and an installation hole which communicates with the test hole, and the test hole is farther away from the end surface of the outer end relative to the installation hole; the hole diameter of the test hole is less than that of the installation hole; and the magnetic ring installation seat is arranged in the installation hole, a step surface is formed between the test hole and the installation hole, and the magnetic ring installation seat abuts against the step surface. In the technical scheme of the invention, due to the fact that the magnetic ring installation seat is arranged and used for installing a magnetic ring, compared with a piston rod assembly in the related technology, when the magnetic ring of the same size is installed, the diameter of a deep hole used for installing a measuring rod of a sensor, in the stepped hole can be designed to be larger. In this way, a gun drilling process can be replaced by a deep hole boring process, so that the deep hole machining difficulty and cost are reduced, and meanwhile, the deep hole machining precision is improved.
本发明提供了一种活塞杆组件和推移千斤顶,活塞杆组件包括:杆体,具有外端,外端的端面上设置有沿杆体的轴向设置的阶梯孔,阶梯孔包括测试孔和与测试孔相连通的安装孔,测试孔相对于安装孔更远离外端的端面,测试孔的孔径小于安装孔的孔径;磁环安装座,设置在安装孔内,测试孔与安装孔之间形成台阶面,磁环安装座抵接在台阶面上。本发明的技术方案中,由于设置了磁环安装座,利用磁环安装座来安装磁环,与相关技术中的活塞杆组件相比,安装相同尺寸的磁环时,阶梯孔中用于安装传感器的测杆的深孔直径可以设计的更大。这样可以采用深孔镗孔工艺代替枪钻工艺,以降低深孔加工的难度和成本,同时提高了深孔加工的精度。
Piston rod assembly and pushing jack
活塞杆组件和推移千斤顶
2021-05-28
Patent
Electronic Resource
Chinese
IPC: | F16J Kolben , PISTONS / 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 |
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