The invention discloses a lifting rack of a target loading and unloading trolley. The lifting rack comprises a pedal, a manual pump, a hydraulic cylinder, chain wheels, a lifting frame and a return valve control handle, wherein two chain wheels are fixedly mounted on two sides of the top end of the hydraulic cylinder and connected with the lifting frame through chains; the manual pump and an oil tank are arranged at the bottom end of the hydraulic cylinder, an oil discharge one-way valve is arranged between the manual pump and the hydraulic cylinder, a return valve and a pressure maintaining valve are arranged between the oil tank and the hydraulic cylinder, and an oil suction one-way valve is arranged between the manual pump and the oil tank; the pedal is arranged above the manual pump, and a compressed spring is arranged between the pedal and the manual pump; the return valve control handle is connected to the lower end of the hydraulic cylinder. The lifting rack can be used as a lifting device for the target loading and unloading trolley, so that a target is conveniently and rapidly replaced, the labor intensity of a worker is greatly reduced, and the production efficiency is improved. The lifting rack is mainly applied to replacement and maintenance of rotary targets of vertical coating equipment.
Lifting rack of target loading and unloading trolley
2015-06-10
Patent
Electronic Resource
English
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 |
Hydraulic lifting trolley for loading, unloading and transporting rolling mill bearings
European Patent Office | 2021
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