A large eccentric beam flexible displacement device

Abstract

The present invention relates to the technical field of manufacturing equipment, and in particular to a large-scale eccentric beam flexible displacement device, comprising two annular positioners and at least one chain-type flipping positioner, wherein the chain-type flipping positioner is installed between the two annular positioners, and the annular positioner is a floating structure, comprising a column, a support box and a floating drive cylinder, wherein the support box is slidably installed on the two columns, and the floating drive cylinder is fixed on the ground, and its output end is connected to the support box, and is suitable for various types of eccentric beam flipping and displacement. When in use, it can effectively ensure the stability of the load-bearing capacity of the chain-type flipping positioner, greatly reduce the impact of the change of the center of gravity of the eccentric beam on the driving device and the transmission device of the chain-type flipping positioner, ensure that the flipping process of the eccentric beam is more stable and safe, and the flipping process of the eccentric beam is safe and controllable, and flips at a specified speed, and can form a stable state at a certain angle, so as to facilitate the hoisting and loading and unloading of the eccentric beam, and greatly improve the welding quality and production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of manufacturing equipment, in particular to a large eccentric beam flexible displacement device. Background Art

[0002] The train body is often equipped with several large box beam components. When welding large eccentric beams, the workpiece is often too large and too heavy to be moved, and the welding points are complex, which makes welding difficult. Usually, a crane is used to assist in lifting and flipping the workpiece for suspended welding, or it is moved to the workbench for welding. Multiple lifting and positioning are required to complete complex welding operations at multiple points and angles. In addition, suspended operations are more dangerous and difficult, especially welding at low or bottom positions. When faced with hundreds or even thousands of welding points, the workload and working time are very large, which will also affect the implementation of welding operations and cannot stably guarantee the welding quality.

[0003] Some eccentric beams are about 10 to 30 meters long, 0.35 to 0.95 meters high and wide, and weigh 4 to 10 tons. The center of gravity of irregular eccentric beams is difficult to determine, and the center of gravity may not be accurately located before the flipping operation. The flipping mechanism is damaged due to excessive rotation during flipping, or the eccentric torque is too large, which causes impact on the flipping mechanism and damages the driving system of the flipping mechanism, posing a great safety risk to equipment or personnel. In addition, when operating with multiple eccentric beams, it is impossible to make flexible adjustments. Some eccentric beam flip welding devices have complex structures and operations, high manufacturing costs, large floor space, and high maintenance costs. The problem of multi-angle and multi-faceted welding of large eccentric beam workpieces is difficult to solve. Summary of the invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a large-scale eccentric beam flexible displacement device.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a large-scale eccentric beam flexible displacement device, including two annular positioners and at least one chain-type flip positioner, the chain-type flip positioner is installed between the two annular positioners and fixed on a straight line on the ground, the annular positioner is used to support the two ends of the eccentric beam, the chain-type flip positioner is used to support the eccentric area of ​​the eccentric beam and drive it to rotate, the annular positioner is a floating structure, including a column, a support box and a floating drive cylinder, the support box is slidably installed on two columns, the floating drive cylinder is fixed on the ground, and its output end is connected to the support box, the floating drive cylinder is used to provide a constant supporting force for the support box, and the sum of the supporting forces of all floating drive cylinders is less than the gravity of the eccentric beam.

[0006] Specifically, by setting two annular positioners with floating structures, a set constant supporting force is provided for the eccentric beam, thereby reducing the load of the chain-type flip positioner. The chain-type flip positioner mainly provides a flipping torque. When the chain is rolled in or out of the eccentric area of ​​the eccentric beam, the center of gravity of the eccentric beam will rise or fall. When the load of the chain-type flip positioner changes, the annular positioner will raise or lower the position of the supporting box due to the constant supporting force provided by the floating drive cylinder, thereby forming a closed-loop control, thereby ensuring the stability of the load of the chain-type flip positioner, greatly reducing the impact of the change of the center of gravity of the eccentric beam on the drive device and transmission device of the chain-type flip positioner, and ensuring that the flipping process of the eccentric beam is more stable and safe.

[0007] According to another embodiment of the present invention, the floating drive cylinder is a pneumatic cylinder or a hydraulic cylinder.

[0008] According to another embodiment of the present invention, the annular positioner is further provided with an annular box, which includes a large half body and two small half bodies, the large half body is semicircular, the small half body is 1 / 4 circular, and both are hingedly mounted at both ends of the large half body, and the middle part of the small half body is butt-connected and fixed to form a cylindrical outline of the annular box with the large half body, the notches of the large half body and the small half body enclose a mounting groove, and a plurality of adjustment support columns are threadedly mounted around the mounting groove, the lower part of the annular box extends into the support box body, a semicircular notch is provided above the support box body, and a plurality of support rollers are provided around the semicircular notch, the cylindrical surface of the annular box abuts the support roller, and its two side surfaces abut against the inner wall of the support box body.

[0009] Through this structure, the two ends of the eccentric beam can be conveniently fixed in the annular box and can rotate freely on the supporting box of the annular positioner. At the same time, the annular box can form a larger opening on the upper part by opening the two small halves, which is convenient for the lifting operation of the eccentric beam.

[0010] According to another embodiment of the present invention, further comprising: a plurality of universal ball rollers are provided on the inner walls on both sides of the semicircular notch, and the two side surfaces of the annular box abut against the universal ball rollers. By providing the universal ball rollers, the friction between the two side surfaces of the annular box and the supporting box body is reduced, and the rolling displacement of the eccentric beam is smoother to prevent jamming.

[0011] According to another embodiment of the present invention, the chain-type flip positioner further includes two mounting posts, four sprockets, a chain, a driving device and a transmission device, the mounting posts are located on both sides, and a sprocket is provided above and below the mounting posts, the driving device is connected to one of the sprockets through the transmission device, the chain passes around the four sprockets, and the upper middle part thereof sags to form a support portion. Through the flexible contact between the chain and the eccentric beam, a more stable support is formed for the eccentric beam during the flipping process of the eccentric beam, and the flipping torque of the eccentric beam is provided through the tension of the chain.

[0012] According to another embodiment of the present invention, the driving device includes a motor and a reducer, and the transmission device is a chain device. The chain transmission structure is used to ensure that the flipping process of the eccentric beam is safe and controllable, and the eccentric beam can be flipped at a specified speed of the system to form a stable state at a certain angle.

[0013] According to another embodiment of the present invention, the chain is further provided with a stopper, the stopper is provided with a plug, and guard plates are symmetrically provided on both sides, the plug is inserted into the roller gap of the chain, the guard plates are located on both sides of the chain, and the outer side of the plug abuts against the eccentric beam. By providing the stopper, the eccentric beam is prevented from slipping on the chain.

[0014] According to another embodiment of the present invention, a mounting frame is provided under the driving device, the mounting frame is integrally connected to the mounting column on one side, and a reinforcing plate is provided on the outer side of the mounting column on the other side to strengthen the overall rigidity of the chain-type flip positioner.

[0015] According to another embodiment of the present invention, it further includes a transverse base and a longitudinal base, both of which are fixed on the ground and are 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, and the T-shaped mounting grooves of the longitudinal base are arranged vertically along the length direction of the eccentric beam, the annular positioner is fixed on the transverse base, and the chain-type flip positioner is fixed on the longitudinal base. By providing a base with T-shaped mounting grooves, it is convenient to adjust the distance between the annular positioners at both ends to adapt to eccentric beams of different lengths, and by adjusting the position of the chain-type flip positioner to adapt to eccentric beams of different rotation diameters, the scope of application of the device is greatly improved.

[0016] The beneficial effects of the present invention are that the large-scale eccentric beam flexible displacement device is suitable for various types of eccentric beam flipping and displacement, and can effectively ensure the stability of the load-bearing capacity of the chain flipping and displacement machine when in use, greatly reduce the impact of the change of the center of gravity of the eccentric beam on the driving device and the transmission device of the chain flipping and displacement machine, and ensure that the flipping process of the eccentric beam is more stable and safe. The flipping process of the eccentric beam is safe and controllable, and it can flip at a specified speed and maintain a stable state at a certain angle, which is convenient for processing the eccentric beam. At the same time, a larger opening can be formed above the chain flipping and displacement machine and the annular positioner, which is convenient for the lifting and loading and unloading of the eccentric beam, and greatly improves the welding quality and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 is a top view schematic diagram of the present invention;

[0020] Figure 3 It is a structural diagram of a chain-type flip positioner;

[0021] Figure 4 It is a top view schematic diagram of the chain-type flip positioner;

[0022] Figure 5 It is a structural schematic diagram of a ring positioner;

[0023] Figure 6 It is a schematic diagram of the structure of the stopper.

[0024] In the figure, an annular positioner 1, a column 11, a supporting box 12, a supporting roller 121, a semicircular notch 122, a universal ball roller 123, a floating drive cylinder 13, an annular box 14, a large half body 141, a small half body 142, a mounting groove 144, an adjustment support column 145, a chain-type flip positioner 2, a mounting column 21, a sprocket 22, a chain 23, a 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

[0025] like Figure 1-6 It is a structural schematic diagram of the present invention, a large eccentric beam flexible displacement device, including two annular positioners 1 and at least one chain-type flip positioner 2, the chain-type flip positioner 2 is installed between the two annular positioners 1 and fixed on a straight line on the ground, the annular positioner 1 is used to support both ends of the eccentric beam 3, the chain-type flip positioner 2 is used to support the eccentric area of ​​the eccentric beam 3 and drive it to rotate, the annular positioner 1 is a floating structure, including a column 11, a support box 12 and a floating drive cylinder 13, the support box 12 is slidably installed on the two columns 11, the floating drive cylinder 13 is fixed on the ground, and its output end is connected to the support box 12, the floating drive cylinder 13 is used to provide a constant supporting force for the support box 12, and the sum of the supporting forces of all floating drive cylinders 13 is less than the gravity of the eccentric beam 3.

[0026] The two annular positioners 1 provide a constant support force of not less than 70% of the total weight of the eccentric beam 3, and the chain-type flip positioner 2 provides a partial support force to ensure that the chain-type flip positioner 2 and the eccentric beam 3 are in contact with each other to provide sufficient tilting moment. For example, if the total weight of the eccentric beam 3 is 5T, and the annular positioners 1 on both sides are respectively set to bear 2T, then the chain-type flip positioner 2 can stably bear 1T.

[0027] The floating drive cylinder 13 can be installed in the cavity of the support box 12, or can be arranged outside the support box 12. Each annular positioner 1 can be provided with two floating drive cylinders 13. All floating drive cylinders 13 are controlled synchronously. Two chain-type flip positioners 2 can be provided, and the flipping control is performed synchronously.

[0028] Preferably, the floating drive cylinder 13 is a pneumatic cylinder or a hydraulic cylinder.

[0029] Preferably, the annular positioner 1 is further provided with an annular box 14, which includes a large half body 141 and two small half bodies 142, wherein the large half body 141 is semicircular, and the small half bodies 142 are 1 / 4 circular, and are both hingedly mounted at both ends of the large half body 141, and the middle part of the small half body 142 is butt-connected and fixed to form a cylindrical profile of the annular box 14 with the large half body 141, and the notches of the large half body 141 and the small half body 142 enclose a mounting groove 144, and a plurality of adjustment support columns 145 are threadedly mounted around the mounting groove 144, and the lower part of the annular box 14 extends into the support box 12, and a semicircular notch 122 is provided above the support box 12, and a plurality of support rollers 121 are provided around the semicircular notch 122, and the cylindrical surface of the annular box 14 abuts against the support rollers 121, and its two side surfaces abut against the inner wall of the support box 12. The adjustment support columns 145 can be bolt adjustment structures. The two small halves 142 can be fixed by bolt connection.

[0030] Preferably, a plurality of universal ball rollers 123 are provided on the inner walls on both sides of the semicircular notch 122 , and the two side surfaces of the annular box 14 abut against the universal ball rollers 123 .

[0031] Preferably, the chain-type turning positioner 2 comprises two mounting columns 21, four sprocket wheels 22, a chain 23, a driving device 24 and a transmission device 25. The mounting columns 21 are located on both sides, and a sprocket wheel 22 is provided above and below the mounting columns 21. The driving device 24 is connected to one of the sprocket wheels 22 through the transmission device 25. The chain 23 passes through the four sprocket wheels 22, and the middle part above the chain 23 sags to form a support portion. The length of the chain 23 is adjusted to a suitable length according to the shape of the eccentric beam 3. A protective cover can be provided at the bottom to protect the chain 23 passing from below.

[0032] Preferably, the driving device 24 includes a motor and a reducer, and the transmission device 25 is a chain device.

[0033] Preferably, a block 231 is inserted on the chain 23, the block 231 is provided with a plug 233, and guard plates 232 are symmetrically provided on both sides, the plug 233 is inserted into the roller gap of the chain 23, the guard plates 232 are located on both sides of the chain 23, and the outer side of the plug 233 abuts the eccentric beam 3.

[0034] Preferably, a mounting frame 27 is provided under the driving device 24 , and the mounting frame 27 is connected to the mounting column 21 on one side as a whole, and a reinforcing plate 26 is provided on the outer side of the mounting column 21 on the other side.

[0035] Preferably, a transverse base 4 and a longitudinal base 5 are further provided, both of which are 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, and the T-shaped mounting grooves of the longitudinal base 5 are arranged vertically along the length direction of the eccentric beam 3, the annular positioner 1 is fixed on the transverse base 4, and the chain-type flip positioner 2 is fixed on the longitudinal base 5. The transverse base 4 and the longitudinal base 5 can be buried in the ground and fixed by steel bars and concrete, and their upper surfaces are flush with the ground.

[0036] The support box 12 or the floating drive cylinder 13 is provided with a limit structure, and the maximum floating height and the minimum floating height of the support box 12 are set according to the product requirements. When hoisting the eccentric beam 3, the annular positioner 1 can be set with a larger support force to reach the maximum floating height. The fixed connection of the two small halves 142 can be opened, and the two small halves 142 can be flipped to the two sides of the large half 141 to facilitate the hoisting of the eccentric beam 3. After the eccentric beam 3 is hoisted in place, the two small halves 142 are closed and fixed, and the support column 145 is adjusted to abut the sides of the eccentric beam 3, so that the eccentric beam 3 is rigidly connected to the annular box 14. Then the floating support force of the annular positioner 1 is slowly reduced to the set constant support force, and the center of gravity of the eccentric beam 3 slowly drops until the middle falls on the chain 23 of the chain flip positioner 2 and remains stable. According to the situation, plugs 233 can be inserted into the chains 23 on both sides of the eccentric beam 3 to prevent the eccentric beam 3 from slipping when flipping. That is, 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 to meet the working requirements.

[0037] The above description is only illustrative rather than restrictive of the present invention. Those skilled in the art will understand that many modifications, changes or equivalents may be made without departing from the spirit and scope defined by the appended claims, but all will fall within the scope of protection of the present invention.

Claims

1. A large eccentric beam flexible displacement device, characterized in that: The invention comprises two annular positioners (1) and at least one chain-type flip positioner (2), wherein the chain-type flip positioner (2) is installed between the two annular positioners (1) and fixed on a straight line on the ground, wherein the annular positioner (1) is used to support both ends of an eccentric beam (3), and the chain-type flip positioner (2) is used to support the eccentric region of the eccentric beam (3) and drive the eccentric region to rotate, wherein the annular positioner (1) is a floating structure, comprising a column (11), a support box (12) and a floating drive cylinder (13), wherein the support box (12) is slidably installed on the two columns (11), and the floating drive cylinder (13) is fixed on the ground, and its output end is connected to the support box (12), and the floating drive cylinder (13) is used to provide a constant support force for the support box (12), and the sum of the support forces of all the floating drive cylinders (13) is less than the gravity of the eccentric beam (3); The annular positioner (1) is further provided with an annular box (14), the annular box (14) comprising a large half body (141) and two small half bodies (142), the large half body (141) being semicircular, the small half bodies (142) being 1 / 4 circular, and both being hingedly mounted at the two ends of the large half body (141), the middle part of the small half body (142) being butt-jointed and fixed with the large half body (141) to form a cylindrical profile of the annular box (14), the large half body (141) and the small half body (142) being arranged on a cylindrical surface. 2) is surrounded by a mounting groove (144), a plurality of adjustment support columns (145) are threadedly installed around the mounting groove (144), the lower part of the annular box (14) extends into the support box body (12), a semicircular notch (122) is provided above the support box body (12), a plurality of support rollers (121) are provided around the semicircular notch (122), the cylindrical surface of the annular box (14) abuts against the support rollers (121), and the two side surfaces thereof abut against the inner wall of the support box body (12); The chain-type turning positioner (2) comprises two mounting columns (21), four sprocket wheels (22), a chain (23), a driving device (24) and a transmission device (25); the mounting columns (21) are located on both sides, and a sprocket wheel (22) is provided on the upper and lower sides of the mounting columns; the driving device (24) is connected to one of the sprocket wheels (22) via the transmission device (25); the chain (23) passes around the four sprocket wheels (22), and the upper middle part of the chain (23) hangs down to form a support portion; The chain (23) is provided with a stopper (231), the stopper (231) is provided with a plug (233), and guard plates (232) are symmetrically provided on both sides, the plug (233) is inserted into the roller gap of the chain (23), the guard plates (232) are located on both sides of the chain (23), and the outer side of the plug (233) abuts against the eccentric beam (3).

2. The large eccentric beam flexible displacement device according to claim 1 is characterized in that: The floating drive cylinder (13) is a pneumatic cylinder or a hydraulic cylinder.

3. The large eccentric beam flexible displacement device according to claim 1 is characterized in that: A plurality of universal ball rollers (123) are provided on the inner walls on both sides of the semicircular notch (122), and the two side surfaces of the annular box (14) abut against the universal ball rollers (123).

4. The large eccentric beam flexible displacement device according to claim 1 is characterized in that: The driving device (24) comprises a motor and a reducer, and the transmission device (25) is a chain device.

5. The large eccentric beam flexible displacement device according to claim 1 is characterized in that: A mounting frame (27) is provided under the driving device (24); the mounting frame (27) is integrally connected to the mounting column (21) on one side; and a reinforcing plate (26) is provided on the outer side of the mounting column (21) on the other side.

6. The large eccentric beam flexible displacement device according to claim 1 is characterized in that: A transverse base (4) and a longitudinal base (5) are also provided. The transverse base (4) and the longitudinal base (5) are both fixed on the ground and are both 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), and the T-shaped mounting grooves of the longitudinal base (5) are arranged vertically along the length direction of the eccentric beam (3). The annular positioner (1) is fixed on the transverse base (4), and the chain-type flip positioner (2) is fixed on the longitudinal base (5).

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