The invention relates to the technical field of telescopic main frames of cranes, and discloses a telescopic main frame of a tower crane. The telescopic main frame comprises a fixing plate, the left end and the right end of the interior of the fixing plate are slidably connected with supporting plates, and adsorption mechanisms are fixedly mounted on the opposite surfaces of the supporting plates. According to the device, the device is placed on another device, at the moment, a connecting pipe on the other device can abut against an abutting rod in a sleeve under the gravity effect of the device, the abutting rod moves upwards to drive a sliding block to slide upwards in the sleeve, then a sliding rod is matched to drive a flexible plate to move, the flexible plate can generate extrusion force on an adsorption bag in the shape changing process, so that gas in the adsorption bag enters a suction bag through a communicating pipe, gas in the suction bag is extruded out, the active suction effect is formed, suction force is provided, the connecting pipe can be used for providing suction force, the lower end of the abutting rod is adsorbed, and the effects of stable fixation and horizontal keeping are achieved.
本发明涉及起重机伸缩主架技术领域,且公开了一种塔式起重机伸缩主架,包括固定板,所述固定板内部的左右两端均滑动连接有支撑板,所述支撑板的相对面上固定安装有吸附机构。该装置通过将该装置放置在另一个装置上面,此时可以在自身的重力作用下,另一个装置上的连接管会抵触套管内部的抵触杆,抵触杆向上运动,带动滑动块在套管的内部向上滑动,然后配合滑动杆带动柔性板运动,柔性板在改变形状过程中可以对吸附囊产生挤压力,从而吸附囊中的气体经过连通管进入到吸力囊中,吸力囊中的气体被压出,形成主动吸气的效果,从而实现提供了吸力,可以利用连接管提供吸力,对抵触杆的下端进行吸附,达到了稳定固定,保持水平的效果。
Telescopic main frame of tower crane
一种塔式起重机伸缩主架
2021-12-17
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |