The invention discloses a double-cylinder four-linkage-bar lifting mechanism. The double-cylinder four-linkage-bar lifting mechanism comprises a front frame, a rear frame, hoisting cylinders, a rocker arm assembly, pull rod assemblies and front wheel support plates. Two parallel hoisting cylinder supporting plates are arranged on the two sides of the rear frame respectively. An outer rocker arm plate and an inner rocker arm plate which are parallel to each other are arranged on the two sides of the rocker arm assembly respectively. First through holes and second through holes which are through are formed in the same sides of the outer rocker arm plate and the inner rocker arm plate. A third through hole is formed in the other side of the outer rocker arm plate and connected with the bottom of the rear frame in a hinged manner. The second through holes are connected with the bottom of the front frame in a hinged manner. Two front legs are symmetrically arranged at the front end of the front frame. The front ends of the front legs are connected with front wheel supports in a hinged manner. The front ends of the pull rod assemblies are connected with the front wheel supports in a hinged manner, and the rear ends of the pull rod assemblies are connected with the first through holes in a hinged manner. The lower ends of the hoisting cylinders are connected with the hoisting cylinder supporting plates in a hinged manner, and the upper ends of the hoisting cylinders are connected with the front frame. The front frame can rise and fall through stretching and retreating of piston rods of the hoisting cylinders, the structure is simple, and maintenance is convenient.
Double-cylinder four-linkage-bar lifting mechanism
2016-02-24
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 |
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