CN-121972943-A - Bridge crane main and auxiliary beam connection winch shaft dismounting device and method

CN121972943ACN 121972943 ACN121972943 ACN 121972943ACN-121972943-A

Abstract

The application provides a device and a method for dismounting a main beam and an auxiliary beam of a bridge crane to connect a winch shaft, which belong to the technical field of crane overhaul and comprise a base, a magnet, an impact hole and an impact mechanism, wherein the base is magnetically connected with an end beam, the magnet provides strong adsorption force, on one hand, the magnetic attraction connection forms redundant protection, can effectively resist the recoil force generated when the impact mechanism impacts the connection winch shaft, ensures the stability of the device in the whole dismounting process, and on the other hand, the magnet can pre-adsorb the base on the end beam, thereby facilitating the fixed connection between the subsequent base and the crane, enabling the device to be quickly and firmly mounted on the crane without temporarily constructing a high-altitude bent frame, eliminating the risk of high-altitude edge operation and improving the operation safety. The impact mechanism is aligned through the impact hole and directly acts on the connecting winch shaft, so that the damage to the shaft hole of the connecting winch shaft during impact is reduced, and the structural integrity of the crane after the connecting winch shaft is disassembled is ensured.

Inventors

HUANG WEI
WANG YANG
YE WEI
LIN JIPENG
CHEN CHANGYAN
Rong Shumei
PAN ZHONG
HUANG MINFU
GAO PEIFU
Kong Linbin
LIU DANDAN
TAO WEN
HUANG SHUQIU

Assignees

广东中南钢铁股份有限公司

Dates

Publication Date: 20260505
Application Date: 20260309

Claims (10)

1. Bridge crane owner auxiliary girder links up hank axle dismounting device, its characterized in that, bridge crane owner auxiliary girder links up hank axle dismounting device includes: the base is detachably fixed on the crane and is attached to the end beam; the magnet is arranged on the side wall of the base opposite to the end beam, and is adsorbed on the end beam; The impact hole is formed in the side wall of the base opposite to the end beam, and is aligned with the connecting twisting shaft; the impact mechanism is adjustably arranged in the base, extends out of the impact hole and impacts the connecting hinge shaft.
2. The bridge crane primary and secondary beam engagement winch shaft dismounting device of claim 1, further comprising: The adjusting mechanism is arranged below the impact mechanism, and the impact mechanism is arranged on the adjusting mechanism so as to adjust the position of the impact mechanism through the adjusting mechanism, so that the impact mechanism is aligned with the impact hole.
3. The bridge crane main and auxiliary beam connection winch shaft dismounting device according to claim 2, wherein, The adjusting mechanism includes: A first platform; The first adjusting mechanism is vertically arranged below the first platform, the fixed end of the first adjusting mechanism is connected with the inner wall of the base, the adjusting end of the first adjusting mechanism is connected with the bottom surface of the first platform, and the first adjusting mechanism drives the first platform to move along the height direction of the main beam; The second adjusting device comprises a first moving block, the second adjusting device is arranged on the first platform, and the first moving block moves along the length direction of the main beam; a second platform arranged parallel to the first platform, the second platform being connected with the first moving block; The third adjusting device comprises a second moving block, the third adjusting device is arranged on the second platform, the second moving block moves along the width direction of the main beam, and the impact mechanism is connected with the second moving block.
4. The device for dismounting the main beam and the auxiliary beam of the bridge crane connected with the winch shaft according to claim 1, wherein, The impact mechanism includes: A support base; The pneumatic impact device is arranged on the side surface of the support frame opposite to the impact hole, the fixed end of the pneumatic impact device is connected with the support seat, and the telescopic end of the pneumatic impact device extends along the width direction of the main beam; the hydraulic impact device is arranged on the side surface of the support frame opposite to the impact hole, the fixed end of the hydraulic impact device is connected with the support seat, and the telescopic end of the hydraulic impact device extends along the width direction of the main beam; The axis of the telescopic end of the hydraulic impact device and the axis of the telescopic end of the pneumatic impact device are positioned in a first plane, and the first plane is parallel to the axis of the connecting winch shaft; The diameter of the telescopic end of the hydraulic impact device is larger than that of the telescopic end of the pneumatic impact device.
5. The device for dismounting the main beam and the auxiliary beam of the bridge crane connected with the winch shaft according to claim 4, wherein, The impact frequency of the hydraulic impact device is smaller than that of the pneumatic impact device; The impact force of the hydraulic impact device is larger than that of the pneumatic impact device.
6. The device for dismounting the main beam and the auxiliary beam of the bridge crane connected with the winch shaft according to claim 4, wherein, The impact mechanism further includes: The first alignment device is arranged on the side surface of the support frame opposite to the impact hole, the axis of the first alignment device is positioned in the first plane, and the first alignment device is connected with the pneumatic impact device; the second alignment device is arranged on the side surface of the support frame opposite to the impact hole, the axis of the second alignment device is positioned in the first plane, and the second alignment device is connected with the hydraulic impact device; The center distance between the first alignment device and the pneumatic impact device is smaller than the diameter of the connecting winch shaft, and the center distance between the second alignment device and the hydraulic impact device is smaller than the diameter of the connecting winch shaft.
7. The bridge crane primary and secondary beam engagement winch shaft dismounting device of claim 4, further comprising: The gas storage station is arranged in the base and is connected with the pneumatic impact device to drive the pneumatic impact device to stretch out and draw back.
8. The bridge crane primary and secondary beam engagement winch shaft dismounting device of claim 4, further comprising: The hydraulic station is arranged in the base and is connected with the hydraulic impact device to drive the hydraulic impact device to stretch out and draw back.
9. The bridge crane primary and secondary beam engagement winch shaft dismounting device according to any one of claims 1-8, further comprising: And the operation screen is arranged on the outer wall of the base and is arranged on the side wall opposite to the impact hole.
10. The bridge crane main and auxiliary beam connecting winch shaft dismounting method is characterized by being applied to the bridge crane main and auxiliary beam connecting winch shaft dismounting device according to any one of claims 1-9, and comprises the following steps: Moving the bridge crane to an overhaul station; removing the clamping plate at the outer side of the connecting winch shaft; fixing the base on a crane, and enabling the base to be in magnetic attraction connection with the end beam; adjusting the position of the impact mechanism to enable the impact mechanism to be opposite to the connecting twisting shaft; The impact mechanism is controlled to impact the connecting twisting shaft by initial impact force, and the impact force and the impact frequency are dynamically adjusted; When the impact mechanism cannot move the connecting twisting shaft, the connecting twisting shaft is impacted with low frequency and large tonnage.

Description

Bridge crane main and auxiliary beam connection winch shaft dismounting device and method Technical Field The application belongs to the technical field of crane overhaul, and particularly relates to a device and a method for disassembling a main beam and auxiliary beam connecting winch shaft of a bridge crane. Background The four-beam box crane is mainly responsible for handling steel, molten iron and the like, and due to the large crane tonnage, the connection of the main beam and the auxiliary beam cannot be fastened by bolts only, and a winch shaft is required to be added so as to improve the safety of the connection of the main beam and the auxiliary beam. The shaft sleeve connected with the twisting shaft has larger abrasion and damage degree in the use process and needs to be replaced periodically. At present, the existing treatment mode is to temporarily build a mountain-discharging position at the joint hinge shaft of the main beam and the auxiliary beam, a person stands on the mountain-discharging position and knocks by manpower, and the shaft sleeve is taken out after the joint hinge shaft of the main beam and the auxiliary beam is disassembled. The operation belongs to overhead operation or edge operation, has higher risk and lower efficiency, and because the winch shaft is loaded more, the connecting winch shaft is easy to deform, and a 'blocking' point exists when the winch shaft is detached, the connecting winch shaft cannot be quickly and effectively taken out by the existing method, and sometimes even violent detachment is needed, so that equipment is easy to damage. Disclosure of Invention The present invention aims to solve at least one of the technical problems existing in the prior art or related art. To this end, a first aspect of the invention provides a bridge crane primary and secondary beam engagement winch shaft dismounting device. The second aspect of the invention provides a method for disassembling a main beam and auxiliary beam joint winch shaft of a bridge crane. In view of this, according to a first aspect of an embodiment of the present application, there is provided a device for dismounting a main beam and an auxiliary beam of a bridge crane, including: the base is detachably fixed on the crane and is attached to the end beam; The magnet is arranged on the side wall of the base opposite to the end beam, and is adsorbed on the end beam; The impact hole is formed in the side wall of the base opposite to the end beam and aligned with the connecting twisting shaft; The impact mechanism is arranged in the base and can extend out of the impact hole to impact the connecting twisting shaft. In a possible implementation manner, the bridge crane main and auxiliary beam connection winch shaft dismounting device further comprises: And the adjusting mechanism is arranged below the impact mechanism, and the impact mechanism is arranged on the adjusting mechanism so as to adjust the position of the impact mechanism through the adjusting mechanism, so that the impact mechanism is aligned with the impact hole. In one possible embodiment, the adjustment mechanism comprises: A first platform; the first adjusting mechanism is vertically arranged below the first platform, the fixed end of the first adjusting mechanism is connected with the inner wall of the base, the adjusting end of the first adjusting mechanism is connected with the bottom surface of the first platform, and the first adjusting mechanism drives the first platform to move along the height direction of the main beam; The second adjusting device comprises a first moving block, the second adjusting device is arranged on the first platform, and the first moving block moves along the length direction of the main beam; the second platform is arranged parallel to the first platform and is connected with the first moving block; And the third adjusting device comprises a second moving block, the third adjusting device is arranged on the second platform, the second moving block moves along the width direction of the main beam, and the impact mechanism is connected with the second moving block. In one possible embodiment, the impact mechanism comprises: A support base; The pneumatic impact device is arranged on the side surface of the support frame opposite to the impact hole, the fixed end of the pneumatic impact device is connected with the support seat, and the telescopic end of the pneumatic impact device extends along the width direction of the main beam; The hydraulic impact device is arranged on the side surface of the support frame opposite to the impact hole, the fixed end of the hydraulic impact device is connected with the support seat, and the telescopic end of the hydraulic impact device extends along the width direction of the main beam; the axis of the telescopic end of the hydraulic impact device and the axis of the telescopic end of the pneumatic impact device are positioned in a first plane, and the first plane is paral