The invention relates to a lifting appliance with adjustable hoisting point spacing and a crane. The lifting appliance with adjustable hanging point spacing comprises a cross beam and lifting hook assemblies, wherein a steel wire rope connecting structure is arranged on the cross beam for steel wire rope connection, and at least two positioning grooves are formed at the two ends in the length direction of the cross beam; the two lifting hook assemblies are respectively arranged at the two ends in the length direction of the cross beam through a hanging support part, and the hanging support part is used for supporting to the groove bottom wall of each positioning groove. The lifting appliance further comprises a rack, gears and a gear driving parts, wherein the rack is fixed on the cross beam and positioned between any two adjacent positioning grooves in the length direction of the cross beam; the gears are rotatably assembled on the lifting hook assemblies and are used for engaging with teeth at the end of the rack to climb to the rack during rotation, so that the hanging support parts of the lifting hook assemblies are lifted above notches of the positioning grooves; the groove wall of one side, close to the rack, of each positioning groove has a slope so as to avoid lifting of the hanging support parts; and the gear driving parts are used for driving the gears to rotate.
本发明涉及一种吊点间距可调的吊具及起重机。吊点间距可调的吊具,包括:横梁,横梁上设有钢丝绳连接结构,供钢丝绳连接,横梁的长度方向两端均设有至少两处定位槽;吊钩组件,设有两个,两个吊钩组件分别通过挂接支撑部设置在横梁的长度方向两端,挂接支撑部用于支撑到所述定位槽的槽底壁上;还包括:齿条,固定在横梁上,在横梁的长度方向上位于任意相邻两处定位槽之间;齿轮,转动装配在所述吊钩组件上,用于在转动时与齿条最端部的齿啮合进而爬升到齿条上,使得吊钩组件的挂接支撑部抬升到所述定位槽的槽口以上;所述定位槽靠近齿条的一侧槽壁具有坡度,以避让挂接支撑部的抬升;齿轮驱动件,用于驱动齿轮转动。
Lifting appliance with adjustable hoisting point spacing and crane
一种吊点间距可调的吊具及起重机
2020-05-08
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
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