The invention discloses a semitrailer supporting leg, and relates to the technical field of semitrailer supporting legs, the semitrailer supporting leg comprises an outer sleeve, a mounting plate, a lower leg pipe and a top cover, one end of the lower leg pipe is located in the outer sleeve, one side of the outer sleeve is provided with a speed change assembly, the outer sleeve is internally provided with a threaded lead screw, and the threaded lead screw is connected with the mounting plate. The top end of the threaded lead screw is rotationally connected with the top cover, a first partition plate and a second partition plate are fixedly connected into the lower leg pipe, through holes are formed in the top of the first partition plate and the top of the second partition plate, and one end of the threaded lead screw penetrates through the interiors of the through holes. By adopting the floating type fixing nut, the lower leg pipe of the supporting leg can have a certain swing amplitude when the semitrailer is connected or disconnected, so that the impact force borne by the lead screw can be effectively reduced, the lead screw is fully protected, the situation that threads of the lead screw are damaged or even bent and deformed is avoided, and the service life of the lead screw is prolonged. Therefore, the service life of the semitrailer supporting leg is prolonged.
本发明公开了一种半挂车支撑腿,涉及半挂车支撑腿技术领域,包括外套管、安装板、下腿管和顶盖,所述下腿管的一端位于所述外套管的内部,所述外套管的一侧设置有变速组件,所述外套管的内部设置有螺纹丝杆,所述螺纹丝杆的顶端与所述顶盖转动连接,所述下腿管的内部分别固定连接有第一隔板和第二隔板,所述第一隔板与所述第二隔板的顶部均开设有通孔,所述螺纹丝杆的一端从通孔内部穿过。本发明采用浮动式的固定螺母,使支腿的下腿管在半挂车进行接挂或者脱挂时使可以有一定幅度的摆幅,从而能够有效的降低丝杆受到的冲击力,对丝杆进行充分的保护,避免丝杆产生螺纹受损甚至弯曲形变的情况,从而延长半挂车支撑腿的使用寿命。
Supporting leg of semitrailer
一种半挂车支撑腿
2024-11-29
Patent
Electronic Resource
Chinese
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 |
Supporting framework of semitrailer tank body and liquid tank semitrailer
European Patent Office | 2025
|