CN216541655U

CN216541655U - Flexible displacement device for large eccentric beam

Info

Publication number: CN216541655U
Application number: CN202122990972.8U
Authority: CN
Inventors: 胡炎; 徐昌华; 冯燕庆; 颜晓飞; 焦国
Original assignee: CRRC Changzhou Co Ltd
Current assignee: CRRC Changzhou Co Ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-05-17
Anticipated expiration: 2031-12-01

Abstract

The utility model relates to the technical field of manufacturing equipment, in particular to a large eccentric beam flexible deflection device which comprises two annular deflectors and at least one chain type overturning deflector, wherein the chain type overturning deflector is arranged between the two annular deflectors, the annular deflector is of a floating structure and comprises upright posts, a supporting box body and a floating driving cylinder, the supporting box body is slidably arranged on the two upright posts, the floating driving cylinder is fixed on the ground, the output end of the floating driving cylinder is connected with the supporting box body, the supporting box body is suitable for overturning deflection of various types of eccentric beams, the bearing load of the chain type overturning deflector can be effectively ensured to be stable when the device is used, the impact of the gravity center change of the eccentric beam on a driving device and a transmission device of the chain type overturning deflector is greatly reduced, the overturning process of the eccentric beam is ensured to be more stable and safe, the overturning process of the eccentric beam is safe and controllable, the overturning is realized according to a specified speed, and a stable state can be kept at a certain angle, the hoisting and the loading and unloading of the eccentric beam are convenient, and the welding quality and the production efficiency are greatly improved.

Description

Flexible displacement device for large eccentric beam

Technical Field

The utility model relates to the technical field of manufacturing equipment, in particular to a large eccentric beam flexible displacement device.

Background

The train body is often equipped with a plurality of large-scale box girder parts, often faces the work piece too big, too heavy and difficult removal when large-scale eccentric beam welding, and the welding point position is complicated, leads to difficult welded problem. Usually use hoist supplementary hoist and mount upset back suspension welding operation, perhaps hoist and mount and remove and carry out the welding after the workstation, need carry out hoist and mount many times and fix a position and just can accomplish the complex welding operation of multiple spot face, multi-angle, unsettled operation is dangerous great moreover, the degree of difficulty is higher, especially the welding of low level or bottom surface position, when facing several hundred even thousands of solder joint operations, work load and operating duration are very big, still can influence the implementation of welding operation, can not stably guarantee welding quality.

Some eccentric roof beams are about 10 to 30 meters long, and height and width are 0.35 meter to 0.95 meter, and it is 4 tons to 10 tons to heavily weigh, and anomalous eccentric roof beam is because of the difficult definite gravity, probably not accurate location focus before the upset operation, because of the too big tilting mechanism damage that leads to of rotation volume during the upset, perhaps because of eccentric moment is too big, cause the impact to tilting mechanism, damage tilting mechanism's actuating system, cause very big safety risk to equipment or personnel. And various eccentric beams are operated, so that flexible adjustment cannot be performed. Some eccentric beam overturning and welding devices are complex in mechanism and operation, high in manufacturing cost, large in occupied area and high in maintenance cost. The problem of multi-angle and multi-surface welding of large-scale workpieces with eccentric beams is difficult to solve.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior problems, the utility model provides a flexible displacement device for a large eccentric beam.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a large-scale eccentric beam flexible deflection device, includes that two annular position changing devices and at least one chain upset machine of shifting, chain upset machine of shifting installs between two annular position changing devices, and fixes on a straight line on ground, the annular position changing device is used for supporting the both ends of eccentric beam, chain upset machine of shifting is used for supporting the eccentric zone of eccentric beam and drives its rotation, the annular position changing device is floating structure, including stand, supporting box and the driving cylinder that floats, the supporting box slidable mounting is on two stands, the driving cylinder that floats is fixed subaerial, and its output connection supporting box, the driving cylinder that floats is used for providing invariable holding power for the supporting box, and the holding power sum of all driving cylinders that float is less than the gravity of eccentric beam.

Concretely, through the annular ware that shifts that sets up two floating structure, provide the invariable holding power of settlement for eccentric roof beam, reduce the bearing load of chain upset machine of shifting, chain upset machine of shifting mainly provides upset moment, when the eccentric region of eccentric roof beam is drawn into or rolls out the chain, the focus of eccentric roof beam can rise or reduce, when the bearing load of chain upset machine of shifting changes, the annular ware that shifts provides invariable holding power because of the drive cylinder that floats, can follow-up rise or reduce the position of supporting box, form closed-loop control, the bearing load of guaranteeing chain upset machine of shifting is stable, the impact of the drive arrangement and the transmission of greatly reduced eccentric roof beam focus change to chain upset machine of shifting, the upset process of guaranteeing eccentric roof beam is more stable, safety.

According to another embodiment of the present invention, it is further comprised that the floating driving cylinder is a pneumatic cylinder or a hydraulic cylinder.

According to another embodiment of the utility model, the annular positioner is further provided with an annular box, the annular box comprises a large half body and two small half bodies, the large half body is semicircular, the small half bodies are 1/4 circular and are both hinged to two ends of the large half body, the middle parts of the small half bodies are in butt joint and fixed with the large half body to form a cylindrical outline of the annular box, notches of the large half body and the small half bodies surround a mounting groove, a plurality of adjusting support columns are installed on the periphery of the mounting groove in a threaded connection mode, the lower part of the annular box extends into the support box body, a semicircular notch is arranged above the support box body, a plurality of support rollers are arranged around the semicircular notch, the cylindrical surface of the annular box abuts against the support rollers, and two side surfaces of the annular box abut against the inner wall of the support box body.

Through the structure, the two ends of the eccentric beam are conveniently fixed in the annular box, the eccentric beam can freely rotate on the supporting box body of the annular positioner, and meanwhile, the annular box can be conveniently hoisted by opening the two small half bodies and forming a large opening at the upper part of the annular box.

According to another embodiment of the utility model, the device further comprises a plurality of universal ball rollers arranged on the inner walls of the two sides of the semicircular gap, and the two side surfaces of the annular box are abutted against the universal ball rollers. Through setting up universal ball gyro wheel, reduce the friction of annular case both sides side and supporting box, the rolling of eccentric roof beam shifts more smoothly, prevents the jamming.

According to another embodiment of the utility model, the chain type turnover positioner further comprises two mounting columns, four chain wheels, a chain, a driving device and a transmission device, wherein the mounting columns are arranged on two sides, the chain wheels are arranged on the upper portion and the lower portion of each mounting column, the driving device is connected with one of the chain wheels through the transmission device, the chain bypasses the four chain wheels, and the middle portion of the upper portion of the chain body sags to form a supporting portion. Through the flexible contact of chain and eccentric roof beam, form more stable support to eccentric roof beam in the upset in-process of eccentric roof beam, provide the upset moment of eccentric roof beam through the pulling force of chain.

According to another embodiment of the present invention, it is further included that the driving device includes a motor and a speed reducer, and the transmission device is a chain device. The chain transmission structure is used, the overturning process of the eccentric beam is ensured to be safe and controllable, and the eccentric beam can be overturned at a specified speed of a system and can form a stable state at a certain angle to be kept.

According to another embodiment of the utility model, the chain is further provided with a stopper, the stopper is provided with a plug, the two sides of the stopper are symmetrically provided with guard plates, the plug is inserted into the roller gap of the chain, the guard plates are positioned on the two sides of the chain, and the outer side of the plug is abutted against the eccentric beam. Through setting up the dog, prevent that eccentric roof beam from appearing the problem of skidding on the chain.

According to another embodiment of the utility model, the driving device further comprises a mounting frame arranged below the driving device, the mounting frame is connected with the mounting column on one side into a whole, and a reinforcing plate is arranged on the outer side of the mounting column on the other side. And the integral rigidity of the chain type overturning positioner is enhanced.

According to another embodiment of the utility model, the chain type turning positioner further comprises a transverse base and a longitudinal base, wherein the transverse base and the longitudinal base are both fixed on the ground and are respectively provided with a plurality of T-shaped mounting grooves, the T-shaped mounting grooves of the transverse base are arranged along the length direction of the eccentric beam, the T-shaped mounting grooves of the longitudinal base are vertically arranged along the length direction of the eccentric beam, the annular positioner is fixed on the transverse base, and the chain type turning positioner is fixed on the longitudinal base. Through setting up the base that is equipped with T type mounting groove, conveniently adjust the distance of both ends annular positioner to adapt to the eccentric roof beam of different length, through the position of adjustment chain upset machine of shifting, with the eccentric roof beam that adapts to different diameter of gyration, very high the device's application scope greatly.

The utility model has the advantages that the large-scale eccentric beam flexible deflection device is suitable for overturning deflection of various types of eccentric beams, can effectively ensure stable bearing load of the chain type overturning deflection machine when in use, greatly reduces the impact of the gravity center change of the eccentric beam on the driving device and the transmission device of the chain type overturning deflection machine, ensures more stable and safer overturning process of the eccentric beam, is safe and controllable in the overturning process of the eccentric beam, can be overturned at a specified speed, can form stable state at a certain angle and keep, is convenient for processing operation of the eccentric beam, can form a larger opening above the chain type overturning deflection machine and the annular deflection device, is convenient for hoisting and loading and unloading the eccentric beam, and greatly improves welding quality and production efficiency.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic structural diagram of a chain type turnover positioner;

FIG. 4 is a schematic top view of the chain inversion positioner;

FIG. 5 is a schematic view of the construction of the annular index;

fig. 6 is a schematic view of the stopper.

In the figure, an annular positioner 1, a vertical column 11, a supporting box body 12, a supporting roller 121, a semicircular notch 122, a universal ball roller 123, a floating driving cylinder 13, an annular box 14, a large half body 141, a small half body 142, a mounting groove 144, an adjusting supporting column 145, a chain type overturning positioner 2, a mounting column 21, a chain wheel 22, a chain 23, a stop block 231, a guard plate 232, a plug 233, a driving device 24, a transmission device 25, a reinforcing plate 26, a mounting frame 27, an eccentric beam 3, a transverse base 4 and a longitudinal base 5.

Detailed Description

As shown in fig. 1-6, which are schematic structural views of the present invention, a large eccentric beam flexible displacement device comprises two annular displacers 1 and at least one chain type overturning and displacing machine 2, wherein the chain type overturning and displacing machine 2 is installed between the two annular displacers 1, and is fixed on a straight line of the ground, the annular position changer 1 is used for supporting two ends of an eccentric beam 3, the chain type overturning positioner 2 is used for supporting an eccentric area of the eccentric beam 3 and driving the eccentric area to rotate, the annular positioner 1 is of a floating structure and comprises an upright post 11, a supporting box body 12 and a floating driving cylinder 13, the supporting box body 12 is slidably mounted on two upright posts 11, the floating driving cylinder 13 is fixed on the ground, the output end of the eccentric beam is connected with a supporting box body 12, the floating driving cylinders 13 are used for providing constant supporting force for the supporting box body 12, and the sum of the supporting force of all the floating driving cylinders 13 is smaller than the gravity of the eccentric beam 3.

The two annular displacers 1 constantly provide a supporting force of not less than 70% of the total weight of the eccentric beam 3, and the chain type inversion positioner 2 provides a part of the supporting force to ensure that the chain type inversion positioner 2 and the eccentric beam 3 are mutually abutted to provide a sufficient tilting moment. If the eccentric beam 3 with the total weight of 5T and the annular position changers 1 on the two sides are respectively provided with a bearing 2T, the chain type overturning position changer 2 stabilizes the bearing 1T.

The floating cylinder 13 may be installed in a cavity of the support case 12 or may be disposed outside the support case 12. Two floating drive cylinders 13 may be provided per ring displacer 1. All floating drive cylinders 13 are controlled synchronously. Two chain type turning and position changing machines 2 can be arranged and turning control is carried out synchronously.

Preferably, the floating driving cylinder 13 is a pneumatic cylinder or a hydraulic cylinder.

Preferably, the annular positioner 1 is further provided with an annular box 14, the annular box 14 includes a large half body 141 and two small half bodies 142, the large half body 141 is semicircular, the small half bodies 142 are 1/4 circular and are both hinged to the two ends of the large half body 141, the middle portions of the small half bodies 142 are connected and fixed in a butt joint mode and then form a cylindrical outline of the annular box 14 with the large half body 141, notches of the large half body 141 and the small half bodies 142 form an installation groove 144 in a surrounding mode, a plurality of adjusting support columns 145 are installed on the periphery of the installation groove 144 in a threaded connection mode, the lower portion of the annular box 14 extends into the support box body 12, a semicircular notch 122 is formed above the support box body 12, a plurality of support cylindrical surfaces 121 are arranged around the semicircular notch 122, the annular box 14 abuts against the support rollers 121, and two side surfaces of the annular box 14 abut against the inner wall of the support box body 12. The adjustment support column 145 may be a bolt adjustment structure. The two small half bodies 142 can be fixed by bolting.

Preferably, a plurality of universal ball rollers 123 are arranged on the inner walls of the two sides of the semicircular notch 122, and the two side surfaces of the annular box 14 are abutted to the universal ball rollers 123.

Preferably, the chain type turnover positioner 2 comprises two mounting columns 21, four chain wheels 22, a chain 23, a driving device 24 and a transmission device 25, the mounting columns 21 are located on two sides, the chain wheels 22 are arranged above and below the mounting columns, the driving device 24 is connected with one of the chain wheels 22 through the transmission device 25, the chain 23 bypasses the four chain wheels 22, and the middle part above the chain 23 sags to form a supporting part. The length of the chain 23 is adjusted to a suitable length according to the shape of the eccentric beam 3. A protective cover may be provided at the bottom to protect the chain 23 passing around from below.

Preferably, the driving device 24 includes a motor and a speed reducer, and the transmission device 25 is a chain device.

Preferably, a stopper 231 is inserted into the chain 23, the stopper 231 is provided with a plug 233, the two sides of the stopper 231 are symmetrically provided with guard plates 232, the plug 233 is inserted into the roller gap of the chain 23, the guard plates 232 are positioned at the two sides of the chain 23, and the outer side of the plug 233 abuts against the eccentric beam 3.

Preferably, a mounting frame 27 is arranged below the driving device 24, the mounting frame 27 is connected with the mounting column 21 on one side into a whole, and a reinforcing plate 26 is arranged outside the mounting column 21 on the other side.

Preferably, still be equipped with horizontal base 4 and vertical base 5, horizontal base 4 and vertical base 5 are all fixed subaerial, and all are equipped with a plurality of T type mounting grooves, the length direction setting of eccentric roof beam 3 is followed to the T type mounting groove of horizontal base 4, the length direction of eccentric roof beam 3 is followed to the T type mounting groove of vertical base 5 sets up perpendicularly, the annular ware 1 that shifts is fixed on horizontal base 4, chain upset machine 2 that shifts is fixed on vertical base 5. The transverse base 4 and the longitudinal base 5 can be buried on the ground and fixed by steel bars and concrete, and the upper surfaces of the transverse base and the longitudinal base are flush with the ground.

The supporting box body 12 or the floating driving cylinder 13 is provided with a limiting structure, and the maximum floating height and the minimum floating height of the supporting box body 12 are set according to product requirements. When the eccentric beam 3 is hoisted, the annular position changer 1 can be provided with larger supporting force to reach the maximum floating height. The two small half bodies 142 can be opened to be fixedly connected, and the two small half bodies 142 are turned to two sides of the large half body 141, so that the eccentric beam 3 can be conveniently hoisted. After the eccentric beam 3 is hoisted in place, the two small half bodies 142 are closed and fixed, and the adjusting support columns 145 are adjusted to abut against each side surface of the eccentric beam 3, so that the eccentric beam 3 is rigidly connected with the annular box 14. Then synchronously and slowly reducing the floating supporting force of the annular position changer 1 to a set constant supporting force, slowly reducing the gravity center of the eccentric beam 3 until the middle part falls on the chain 23 of the chain type overturning position changer 2 and keeping stable. Plugs 233 can be inserted into the chains 23 on both sides of the eccentric beam 3 according to circumstances, thereby preventing the eccentric beam 3 from slipping when it is turned over. The turning and the stopping position of the eccentric beam 3 can be controlled by controlling the driving device 24 of the chain type turning positioner 2, and the working requirements are met.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. The flexible displacement device for the large eccentric beam is characterized by comprising two annular displacement devices (1) and at least one chain type overturning displacement device (2), wherein the chain type overturning displacement device (2) is installed between the two annular displacement devices (1) and fixed on a straight line on the ground, the annular displacement devices (1) are used for supporting two ends of an eccentric beam (3), the chain type overturning displacement device (2) is used for supporting an eccentric area of the eccentric beam (3) and driving the eccentric area to rotate, the annular displacement devices (1) are of a floating structure and comprise stand columns (11), supporting box bodies (12) and floating driving cylinders (13), the supporting box bodies (12) are slidably installed on the two stand columns (11), the floating driving cylinders (13) are fixed on the ground, the output ends of the floating driving cylinders are connected with the supporting box bodies (12), and the floating driving cylinders (13) are used for providing constant supporting force for the supporting box bodies (12), and the sum of the supporting forces of all the floating driving cylinders (13) is less than the gravity of the eccentric beam (3).

2. The large eccentric beam flexible deflection device according to claim 1, wherein the floating driving cylinder (13) is a pneumatic cylinder or a hydraulic cylinder.

3. The flexible displacement device of the large eccentric beam according to claim 1, wherein the annular displacement device (1) is further provided with an annular box (14), the annular box (14) comprises a large half body (141) and two small half bodies (142), the large half body (141) is semicircular, the small half bodies (142) are 1/4 circular and are hinged to the two ends of the large half body (141), the middle parts of the small half bodies (142) are connected and fixed in a butt joint mode and then form a cylindrical profile of the annular box (14) with the large half body (141), the gaps of the large half body (141) and the small half bodies (142) enclose a mounting groove (144), a plurality of adjusting support columns (145) are mounted on the periphery of the mounting groove (144) in a threaded connection mode, the lower portion of the annular box (14) extends into the support box body (12), and a semicircular gap (122) is formed above the support box body (12), a plurality of supporting rollers (121) are arranged around the semicircular gap (122), the cylindrical surface of the annular box (14) is abutted against the supporting rollers (121), and two side surfaces of the annular box are abutted against the inner wall of the supporting box body (12).

4. The flexible deflection device of the large eccentric beam according to claim 3, wherein a plurality of universal ball rollers (123) are arranged on the inner walls of two sides of the semicircular notch (122), and two sides of the annular box (14) are abutted against the universal ball rollers (123).

5. The large eccentric beam flexible deflection device according to claim 1, wherein the chain type turnover positioner (2) comprises two mounting columns (21), four chain wheels (22), a chain (23), a driving device (24) and a transmission device (25), the mounting columns (21) are arranged on two sides, the upper portion and the lower portion of each mounting column are respectively provided with one chain wheel (22), the driving device (24) is connected with one chain wheel (22) through the transmission device (25), the chain (23) bypasses the four chain wheels (22), and the middle portion of the chain (23) is drooped to form a supporting portion.

6. The large eccentric beam flexible deflection device according to claim 5, wherein the driving device (24) comprises a motor and a reducer, and the transmission device (25) is a chain device.

7. The flexible deflection device of the large eccentric beam according to claim 5, wherein a stopper (231) is inserted on the chain (23), the stopper (231) is provided with a plug (233), and guard plates (232) are symmetrically arranged on two sides of the stopper, the plug (233) is inserted into a roller gap of the chain (23), the guard plates (232) are positioned on two sides of the chain (23), and the outer side of the plug (233) abuts against the eccentric beam (3).

8. The flexible deflection device of the large eccentric beam according to claim 5, wherein a mounting frame (27) is arranged below the driving device (24), the mounting frame (27) is connected with the mounting column (21) on one side into a whole, and a reinforcing plate (26) is arranged on the outer side of the mounting column (21) on the other side.

9. The large eccentric beam flexible deflection device according to claim 1, characterized in that a transverse base (4) and a longitudinal base (5) are further provided, the transverse base (4) and the longitudinal base (5) are both fixed on the ground and are provided with a plurality of T-shaped mounting grooves, the T-shaped mounting grooves of the transverse base (4) are arranged along the length direction of the eccentric beam (3), the T-shaped mounting grooves of the longitudinal base (5) are vertically arranged along the length direction of the eccentric beam (3), the annular deflector (1) is fixed on the transverse base (4), and the chain type overturning deflection machine (2) is fixed on the longitudinal base (5).