The invention relates to the technical field of trailers, and discloses a trailer connecting device for a cargo transportation semitrailer, which comprises a connecting rotating shaft, a rotating sleeve body is movably mounted on the outer ring of the connecting rotating shaft, the rotating sleeve body is movably mounted in the middle of a fixed oil cylinder, and a hydraulic cylinder body is fixedly mounted above the fixed oil cylinder. A sliding plug rod is slidably mounted in the hydraulic cylinder body, a fixed hydraulic cylinder is fixedly mounted above the connecting oil pipe, and a piston rod is movably mounted in the fixed hydraulic cylinder. According to the trailer connecting device for the cargo transportation semitrailer, the connecting rotating shaft is pulled upwards to be inserted into the rotating sleeve body through the connecting frame body, and during turning, the connecting rotating shaft applies pressure to the rotating sleeve body, so that the rotating sleeve body extrudes an oil body in a fixed oil cylinder, the oil body enters a hydraulic cylinder body, and the hydraulic cylinder body pushes a sliding plug rod to move upwards; therefore, the effect of bearing high-strength extrusion through hydraulic buffering is achieved.
本发明涉及挂车技术领域,且公开了一种用于货物运输半挂车的挂车连接装置,包括连接转轴,所述连接转轴的外圈活动安装有转动套体,所述转动套体活动安装在固定油缸的中间位置,所述固定油缸的上方固定安装有液压缸体,所述液压缸体的内部滑动安装有滑动塞杆,所述连接油管的上方固定安装有固定液压缸,所述固定液压缸的内部活动安装有活塞杆。该用于货物运输半挂车的挂车连接装置,通过连接转轴向上拔动,使其通过连接框体插入转动套体中,当转弯时,连接转轴给予转动套体压力,使转动套体挤压固定油缸中的油体,使油体进入液压缸体中,使其推动滑动塞杆向上运动,从而达到了通过液压缓冲承受高强度的挤压效果。
Trailer connecting device for cargo transportation semitrailer
一种用于货物运输半挂车的挂车连接装置
2021-08-24
Patent
Electronic Resource
Chinese
IPC: | B60D Fahrzeugverbindungen , VEHICLE CONNECTIONS |
NTIS | 1972
New Chassis System for Semitrailer and Trailer
British Library Online Contents | 1996