The invention discloses an excavation trolley automatic lifting hydraulic device which comprises an excavation trolley main body, a protective guard, a movable base and a hydraulic lifting cylinder, wherein the protective guard is installed on the side of the upper end of the excavation trolley main body, and the movable base is installed on the side of the lower end of the excavation trolley main body; and the movable base is connected with the lower end of the excavation trolley main body through the hydraulic lifting cylinder. The device also comprises a protective sleeve arranged at the outer side of thehydraulic lifting cylinder, wherein a cooling cavity filled with cooling liquid is formed in the inner side of the protective sleeve, and a heat absorption conduction sheet is inserted into the cooling cavity; and a barrier plate which is installed on the side of the protective sleeve, wherein the barrier plate and the protective sleeve are connected with each other through a built-in spring providing reset elastic force. According to the excavation trolle automatic lifting hydraulic device, the good heat dissipation and cooling effects can be achieved in the using process, the temperature of oil in the hydraulic cylinder is prevented from being too high, and meanwhile a certain buffering and protecting effect can be achieved after collision occurs.
本发明公开了一种开挖台车自动升降液压装置,包括开挖台车主体、防护栏、移动底座和液压升降缸,所述开挖台车主体的上端边侧安装有防护栏,且开挖台车主体的下端边侧安装有移动底座,并且移动底座和开挖台车主体的下端之间通过液压升降缸相互连接;还包括:设置在所述液压升降缸外侧的防护套,所述防护套的内部边侧设置有填充有冷却液的冷却腔,且冷却腔的内部插入有吸热传导片;阻挡板,安装在所述防护套的边侧,所述阻挡板和防护套之间通过提供复位弹力的内置弹簧相互连接。该开挖台车自动升降液压装置,能够在使用的过程中对其起到良好的散热降温作用,防止液压缸内部的油液温度过高,同时能够在发生碰撞后起到一定的缓冲防护作用。
Excavation trolley automatic lifting hydraulic device
一种开挖台车自动升降液压装置
2022-02-08
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 |
Full-automatic-controlled hydraulic lifting platform trolley
European Patent Office | 2015
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