The invention belongs to the technical field of walking type piling machinery hydraulic elements, and particularly relates to a dustproof hydraulic jacking device which comprises an inner sleeve and an outer sleeve connected outside the inner sleeve in a sliding mode, a cylinder body of a hydraulic cylinder is fixedly installed in the inner sleeve, and the upper end of a piston rod of the hydraulic cylinder is connected with a plurality of L-shaped connecting rods through pin shafts; the other end of the L-shaped connecting rod is connected to the outer sleeve through a pin shaft; the upper part of the outer sleeve is fixedly connected with a dust cover sleeving the L-shaped connecting rod; and the host working platform is fixedly connected to the outer sleeve. The inner sleeve, the outer sleeve and the dust cover are arranged outside the hydraulic cylinder to effectively seal the hydraulic cylinder, erosion of silt and mud to the hydraulic cylinder can be effectively prevented, and the service life of the hydraulic cylinder is prolonged.
本发明属于步履式桩工机械液压元件技术领域,具体涉及一种防尘液压顶升装置,包括内套筒、滑动连接在内套筒外的外套筒,液压缸的缸体固定安装在内套筒内,液压缸的活塞杆上端通过销轴连接有多个L型连杆;L型连杆的一端连接活塞杆,另一端通过销轴连接在外套筒上;外套筒上部固定连接有套在L型连杆外部的防尘罩;主机作业平台固定连接在外套筒上。本发明通过在液压缸的外部设置内套筒、外套筒和防尘罩对液压缸的有效密封,能够有效阻止泥沙、泥浆对液压缸的侵蚀,延长液压缸的使用寿命。
Dustproof hydraulic jacking device
一种防尘液压顶升装置
2022-06-24
Patent
Electronic Resource
Chinese
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 / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / F16J Kolben , PISTONS |