The invention discloses a hydraulic support device used for a drop-and-pull transport semitrailer. The hydraulic support device comprises a hydraulic oil cylinder and a supporting foot, rear connecting plates are arranged on the side face of the hydraulic oil cylinder, the hydraulic oil cylinder is a double-acting hydraulic oil cylinder, a piston rod of the hydraulic oil cylinder is of a solid structure, the rear connecting plates are thickened steel plates, arc grooves are formed in the rear connecting plates for being matched with the hydraulic oil cylinder, and a telescopic part of the hydraulic oil cylinder is sleeved with a durable telescopic rubber pipe. According to the device, the hydraulic power is utilized, the ascending and descending speed is fast, the power is large, and the welding strength between the connecting plates and the oil cylinder is guaranteed.
Hydraulic support device used for drop-and-pull transport semitrailer
16.09.2015
Patent
Elektronische Ressource
Englisch
IPC: | B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen |
Semitrailer suspension quick-release lossless positioning pull arm
Europäisches Patentamt | 2022
|Auxiliary driving device of semitrailer, semitrailer and control method of semitrailer
Europäisches Patentamt | 2023
|Driving walking hydraulic system and semitrailer chassis
Europäisches Patentamt | 2024
|