Drives for Ring Rail Cranes and Ring Rail Cranes

Abstract

The invention discloses a drive device of a circular-track crane and a circular-track crane. The drive device comprises a connecting shaft, a driving wheel and a speed reducer, wherein the connecting shaft is fixedly connected with a rack of the circular-track crane; the driving wheel is rotatably supported on the connecting shaft; the speed reducer comprises a fixing part and a rotating part which is rotatably arranged relative to the fixing part; the fixing part is fixedly connected with the connecting shaft; and the rotating part is fixedly connected with the driving wheel. According to the drive device of the circular-track crane, the structural form of the drive device of the circular-track crane in the prior art is changed, and the connecting shaft arranged on the rack is additionally arranged and used for transferring the driving torque and radial load, so that relatively large radial load borne by the driving wheel is borne by the rack and none or a little is transferred to the speed reducer to realize an effect that the driving wheel can bear the relatively large radial load when the speed reducer provides relatively small driving torque.

Description

technical field [0001] The invention relates to the technical field of hoisting equipment, in particular to a driving device of a ring-rail crane and the ring-rail crane. Background technique [0002] The ring rail crane is a kind of lifting equipment installed on the ring track that can realize lifting, luffing, and slewing actions. [0003] figure 1 It is a partial structural schematic diagram of a ring rail crane in the prior art. Such as figure 1 As shown, the ring-rail crane includes a ring rail 11, a platform trolley 12, a platform 13, a boom 14, a mast 15, a mast support 16 and a counterweight device 17. Wherein, the platform trolley includes a driving device 121 . The overall weight and load of the ring rail crane are borne by several supporting wheels, which include driving wheels and follower wheels. The driving device 121 of the ring-rail crane is a mechanism that transmits the speed and torque of the reducer to the driving wheels, so as to realize the rotati...

AI Technical Summary

Problems solved by technology

[0005] In the process of realizing the present invention, the designer found that the driving device of the ring rail crane in the above prior art has the following disadvantages: the greater the radial load that the reducer can bear, the greater the driving torque it provides, and the smaller its volume bigger

At this time, if a smaller reducer is selected, it cannot meet the requirements of the radial load; if a larger reducer that meets the requirements of the radial load is selected, the driving torque provided by it cannot be effectively utilized

That is to say, it is difficult for the driving device of the ring rail crane in the prior art to meet the requirements that it only needs a small driving torque but must bear a large radial load at the same time.

Images