Gantry crane rolling wheel locking device

Abstract

The invention discloses a gantry crane rolling wheel locking device. The gantry crane rolling wheel locking device comprises a cross beam, moving plates and rolling wheel fixing blocks. A moving wheelset is arranged in the middle of the cross beam. Supports are symmetrically arranged at the left side and the right side of the cross beam correspondingly. The side, far away from the cross beam, ofthe moving wheel set is provided with a transmission chain. A hook is arranged at the side, far away from the moving wheel set, of the transmission chain. A switch is arranged at the side, far away from the hook, of one support. Slide rails are arranged on the surfaces of the two sides of the supports. According to the gantry crane rolling wheel locking device, by means of first electric extending-and-contracting pillars and the moving plates, the function that the two semi-ring rolling wheel fixing blocks ascend and descend is achieved; by means of second electric extending-and-contracting pillars and slide blocks, the function that the two semi-ring rolling wheel fixing blocks shrink is achieved; the two functions are combined, so that the performance that rolling wheels are fixed is achieved; by means of rubber layers on the surfaces of the rolling wheel fixing blocks, resistance between each fixing block and the corresponding rolling wheel is increased, and the fixing performance is improved; and mechanized operation is adopted in the whole process, and potential safety hazards caused by personal error operation are avoided.

Description

technical field [0001] The invention belongs to the technical field of mechanical engineering, and in particular relates to a locking device for rollers of a gantry crane. Background technique [0002] The gantry crane is a machine used to lift, transport and install materials. It is closely related to our life. It can reduce physical labor, improve work efficiency, and achieve safe production. The traditional and important auxiliary machinery, and the gantry crane is used in the factory It has been widely used in many fields such as ports, construction sites, etc. With the increasing scale of production, especially the requirements of modernization and specialized production, various special-purpose gantry cranes have been produced one after another. In many important departments, it has been It is not only an auxiliary machinery in the production process, but its development plays a positive role in promoting the construction of the national economy. The roller locking dev...

AI Technical Summary

Problems solved by technology

[0003] The prior art gantry crane roller locking device has the following problems: 1. At present, the gantry crane roller locking device mostly realizes the locking function by punching holes at both ends of the roller and inserting locking pins. Pull out the locking pin to unlock, and you need to insert the locking pin to lock when transporting to the destination. The operation is extremely inconvenient and time-consuming, because it is difficult to guarantee the insertion depth of the manual pin, and sometimes the stability of the gantry crane is not stable due to improper operation by the staff. 2. Gantry cranes are mostly used in factories, ports and other fields. The environment is harsh and the ground is sandy. It is easy to cause damage to the internal structure of the rollers and shorten the service life of the rollers. Frequent replacement is required. The current roller lock Most of the locking devices are integrated with the rollers. When the rollers are replaced, the entire roller locking device needs to be replaced, which increases the operating cost of the gantry crane.

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