Circumferential pipe pushing device

Abstract

The invention discloses a circumferential pipe pushing device, which relates to the field of pipe bending, and comprises a pipe pushing trolley, a guide structure, a driving device, a circular track, a tensioning device, and a pipe bending machine operating table. The circular track is arranged on the pipe bending machine operating table, the pipe pushing trolley is arranged on the circular track, the driving device comprises a base, a variable frequency motor, and two wire wheels. The base is arranged below one side of the pipe bending machine operating table, the variable frequency motor is arranged on the base, the two wire wheels are fixedly connected to the output end of the variable frequency motor, and the tensioning device is arranged below the other side of the pipe bending machine operating table. The beneficial effect of the invention is that the pipe pushing trolley is driven by the driving device and the guiding structure to move on the circular track, and the processed pipe on the pipe bending machine operating table is pushed, thereby reducing the friction between the pipe and the platform and improving the quality of the elbow.

Description

Technical Field

[0001] The invention relates to the field of pipe bending, in particular to a circumferential pipe pushing device. Background Art

[0002] During the serpentine tube bending process, an additional harmful elbow will be formed at the tube bending die due to the friction between the tube row and the platform. Summary of the invention

[0003] The purpose of the present invention is to solve the above problems and to design a circumferential pipe pushing device.

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is a circumferential pipe pushing device, including a pipe pushing vehicle, a guide structure, a driving device, a circular track, a tensioning device, and a pipe bending machine operating table. The circular track is arranged on the pipe bending machine operating table, and the pipe pushing vehicle is arranged on the circular track. The driving device includes a base, a variable frequency motor, and two wire wheels. The base is arranged on the pipe bending machine operating table and on one side of the circular track. The variable frequency motor is arranged on the base. The two wire wheels are fixedly connected to the output end of the variable frequency motor. The wire wheels are connected to the guide structure through wire ropes. It is connected to the pipe pushing cart, and the tensioning device includes a bracket, a No. 2 wire wheel, a screw rod, a nut, a screw rod rack, and two telescopic rods. The bracket and the screw rod rack are fixedly connected to the lower side of the pipe bending machine operating table, and the No. 2 wire wheel is rotatably connected to the telescopic rod. The two telescopic rods are arranged in parallel and one end of each is fixedly connected to one side plate of the bracket, and the other end of the telescopic rod passes through the other side plate of the bracket and is fixedly connected to the screw rod rack. One end of the screw rod passes through the screw rod rack, and the other end of the screw rod is fixedly connected to the other side plate of the bracket. The nut is set at one end of the screw rod.

[0005] The circular track is provided with an opening, and the angles formed by the center of the circular track and the lines connecting the opening ends of the circular track and the driving device are greater than 0° and less than 90°. The circular track includes a base plate, a guardrail, and a plurality of guide wheels. The guardrail 18 is fixedly connected to both sides of the base plate, and a plurality of guide wheels are arranged at equal intervals and fixedly connected to the inner side of the base plate. The pipe pushing vehicle is arranged on the base plate and inside the guardrail.

[0006] The guide structure includes a first pulley group, a second pulley group, and a third pulley group. The first pulley group includes two oppositely arranged No. 1 pulleys and two oppositely arranged No. 2 pulleys, the No. 1 pulley and the No. 2 pulley are adjacent to each other. The first pulley group is arranged on one side of the wire wheel, and the second pulley group is arranged below the opening of the annular track. The second pulley group and the driving device and the tensioning device are arranged on the same plane. The third pulley group includes two oppositely arranged pulleys, and the third pulley group is arranged below the opposite ends of the opening end of the annular track.

[0007] A limiting device is arranged below the annular track.

[0008] The pipe pushing vehicle comprises a vehicle body, a plurality of radial supporting wheels, a plurality of running wheels and a push rod. The running wheels are arranged below the vehicle body, the radial supporting wheels are arranged on the side of the vehicle body, and the push rod is fixedly connected above the vehicle body.

[0009] The variable frequency motor is electrically connected to a touch screen controller.

[0010] A circular pipe pushing device manufactured using the technical solution of the present invention can drive the pipe pushing trolley to move on a circular track through a driving device and a guide structure, push the pipe on the operating table of the pipe bending machine, thereby reducing the friction between the pipe and the platform and improving the quality of the elbow. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a top view of a circumferential pipe pushing device according to the present invention;

[0012] Figure 2 It is a right side view of a circumferential pipe pushing device according to the present invention;

[0013] Figure 3 It is a structural schematic diagram of a driving device of a circumferential pipe pushing device according to the present invention;

[0014] Figure 4 It is a structural schematic diagram of a pipe pushing vehicle of a circumferential pipe pushing device according to the present invention;

[0015] Figure 5 It is a structural schematic diagram of a tensioning device of a circumferential pipe pushing device according to the present invention;

[0016] Figure 6 It is a circuit block diagram of a circumferential pipe pushing device according to the present invention;

[0017] In the figure, 1. pipe pushing vehicle; 2. guide structure; 3. driving device; 4. circular track; 5. tensioning device; 6. base; 7. frequency conversion motor; 8. wire wheel; 9. bracket; 10. No. 2 wire wheel; 11. screw rod; 12. screw rod rack; 13. telescopic rod; 14. pipe bending machine operating table; 15. pipe bending device; 16. nut; 17. bottom plate; 18. guardrail; 19. guide wheel; 20. first pulley group; 21. second pulley group; 22. third pulley group; 23. No. 1 pulley; 24. No. 2 pulley; 25. limit device; 26. vehicle body; 27. radial supporting wheel; 28. walking wheel; 29. ​​push rod; 30. touch screen controller. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1-6 As shown, a circumferential pipe pushing device includes a pipe pushing vehicle 1, a guide structure 2, a driving device 3, a circular track 4, a tensioning device 5, and a pipe bending machine operating table 14.

[0019] The annular track 3 includes a bottom plate 17, a guardrail 18, and a plurality of guide wheels 19. The guardrail 18 is fixedly connected to both sides of the bottom plate 17. The plurality of guide wheels 19 are arranged at equal intervals and fixedly connected to the inner side of the bottom plate 17. The pipe pusher 1 is arranged on the bottom plate 17 and in the guardrail 18. The annular track 4 is arranged on the operating table 14 of the pipe bending machine. The annular track 4 is arranged on one side of the pipe bending device 15 of the operating table 14 of the pipe bending machine.

[0020] The pipe pushing vehicle 1 includes a vehicle body 26, a plurality of radial supporting wheels 27, a plurality of running wheels 28, and a push rod 29. The running wheels 28 are arranged below the vehicle body 26, and the radial supporting wheels 27 are arranged on both sides of the vehicle body 26. The radial supporting wheels 27 are used to ensure that the pipe pushing vehicle 1 does not shake when moving along the circular track 3, and the push rod 29 is fixedly connected above the vehicle body 26. When the pipe pushing vehicle 1 moves, the push rod 29 is used to push the pipe row to move when bending the pipe to prevent the formation of harmful elbows. The pipe pushing vehicle 1 is arranged on the circular track 4.

[0021] The driving device 3 includes a base 6, a variable frequency motor 7, and two wire wheels 8. The base 6 is arranged below one side of the pipe bending machine operating table 14. The variable frequency motor 7 is arranged on the base 6. The two wire wheels 8 are fixedly connected to the output end of the variable frequency motor 7. The variable frequency motor 7 drives the wire wheels 8 to rotate. The wire wheels 8 are connected to the guide structure 2 and the pipe pushing vehicle 1 through a wire rope. The rotation of the wire wheels 8 drives the steel wire to move, thereby driving the pipe pushing vehicle 1 to move.

[0022] The tensioning device 5 includes a bracket 9, a second wire wheel 10, a screw rod 11, a nut 16, a screw rod frame 12, and two telescopic rods 13. The bracket 9 and the screw rod frame 12 are fixedly connected to the lower side of the other side of the pipe bending machine operating table 14. The second wire wheel 10 is rotatably connected to the telescopic rod 13. The two telescopic rods 13 are arranged in parallel and one end of each is fixedly connected to a side plate of the bracket 9. The other end of the telescopic rod 13 passes through the other side plate of the bracket 9 and is fixedly connected to the screw rod frame 12. One end of the screw rod 11 passes through the screw rod frame 12, and the other end of the screw rod 11 is fixedly connected to the other side plate of the bracket 9. The nut 16 is set at one end of the screw rod 11. The steel wire passes through the second wire wheel 10. During the working process, the telescopic rod 13 tensions the steel wire at any time. When the steel wire needs to be tensioned, the staff can control the length of the screw rod 11 between the bracket 9 and the screw rod frame 12 by rotating the nut 16, thereby controlling the extension or contraction of the telescopic rod 13, and then tensioning the steel wire.

[0023] The guide structure 2 includes a first pulley group 20, a second pulley group 21, and a third pulley group 22. The first pulley group 20 includes two oppositely arranged first pulleys 23 and two oppositely arranged second pulleys 24. The first pulley 23 and the second pulley 24 are adjacent to each other. The first pulley group 20 is arranged on one side of the wire wheel 8, and the second pulley group 21 is arranged below the opening of the annular track 4. The second pulley group 21 and the driving device 3 and the tensioning device 5 are arranged on the same plane. The third pulley group 22 includes two oppositely arranged pulleys. The third pulley group 22 is arranged on the annular track 4 and opposite to the second pulley group 21. The steel wire sleeved on the steel wire wheel 8 passes through the first pulley block 20, the second pulley block 21, the third pulley block 22, and the second steel wire wheel 10, and is connected to the front and rear ends of the body 26 of the pipe pushing vehicle 1. The frequency conversion motor 7 drives the steel wire wheel 8 to rotate, and the steel wire drives the pipe pushing vehicle 1 to move along the circular track under the guidance of the first pulley block 20, the second pulley block 21, and the third pulley block 22. During the movement, the tensioning device 5 tensions the steel wire at any time or at a fixed time to ensure the movement of the pipe pushing vehicle 1.

[0024] A limiting device 25 is provided below the annular track 4 to prevent the pipe pushing vehicle 1 from sliding out of the annular track 4 .

[0025] The variable frequency motor 7 is electrically connected to a touch screen controller 30 , and the operating speed and direction of the variable frequency motor 7 are controlled by operating the touch screen controller 30 .

[0026] In this embodiment, the steel wire can be driven to move by the variable frequency motor 7, and the guide structure 2 adjusts the movement direction of the steel wire, so that the pipe pushing vehicle 1 connected to the other end of the steel wire moves along the circular track 4, and the tensioning device 5 tensions the steel wire to ensure that the steel wire can pull the pipe pushing vehicle 1 to move. The present invention has a simple structure and can push the pipe row to move when bending the pipe, thereby preventing the pipe row from generating harmful elbows when bending the pipe.

[0027] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A circumferential pipe pushing device, characterized in that: The invention comprises a pipe pushing vehicle (1), a guide structure (2), a driving device (3), a circular track (4), a tensioning device (5), and a pipe bending machine operating table (14); the circular track (4) is arranged on the pipe bending machine operating table (14); the pipe pushing vehicle (1) is arranged on the circular track (4); the driving device (3) comprises a base (6), a variable frequency motor (7), and two wire wheels (8); the base (6) is arranged below one side of the circular track (4); the variable frequency motor (7) is arranged on the base (6); the two wire wheels (8) are fixedly connected to the output end of the variable frequency motor (7); the wire wheels (8) are connected to the guide structure (2) and the pipe pushing vehicle (1) through a wire rope; the tensioning device (5) comprises a bracket (9), A second wire wheel (10), a screw rod (11), a nut (16), a screw rod frame (12), and two telescopic rods (13); the bracket (9) and the screw rod frame (12) are fixedly connected to the lower part of the other side of the circular track (4); the second wire wheel (10) is rotatably connected to the telescopic rod (13); the two telescopic rods (13) are arranged in parallel and one end of each is fixedly connected to a side plate of the bracket (9); the other end of the telescopic rod (13) passes through the other side plate of the bracket (9) and is fixedly connected to the screw rod frame (12); one end of the screw rod (11) passes through the screw rod frame (12); the other end of the screw rod (11) is fixedly connected to the other side plate of the bracket (9); and the nut (16) is arranged at one end of the screw rod (11).

2. The annular pipe pushing device according to claim 1, characterized in that: The annular track (4) is provided with an opening, and the angle formed by the center of the annular track (4) and the line connecting the opening end of the annular track (4) and the driving device (3) is greater than 0° and less than 90°. The annular track (4) comprises a base plate (17), a guardrail (18), and a plurality of guide wheels (19). The guardrail (18) is fixedly connected to both sides of the base plate (17), and the plurality of guide wheels (19) are arranged at equal intervals and fixedly connected to the inner side of the base plate (17). The pipe pushing vehicle (1) is arranged on the base plate (17) and inside the guardrail (18).

3. The annular pipe pushing device according to claim 1, characterized in that: The guide structure (2) comprises a first pulley group (20), a second pulley group (21), and a third pulley group (22); the first pulley group (20) comprises two first pulleys (23) arranged opposite to each other and two second pulleys (24) arranged opposite to each other; the first pulley (23) and the second pulley are adjacent to each other; the first pulley group (20) is arranged on one side of the wire wheel (8); the second pulley group (21) is arranged below the opening of the annular track (4); the second pulley group (21) and the driving device (3) and the tensioning device (5) are arranged on the same plane; the third pulley group (22) comprises two pulleys arranged opposite to each other; the third pulley group (22) is fixedly connected below the opposite ends of the opening end of the annular track (4).

4. The annular pipe pushing device according to claim 1, characterized in that: A limiting device (25) is arranged below the annular track (4).

5. The annular pipe pushing device according to claim 1, characterized in that: The pipe pushing vehicle (1) comprises a vehicle body (26), a plurality of radial supporting wheels (27), a plurality of running wheels (28), and a push rod (29); the running wheels (28) are arranged below the vehicle body (26); the radial supporting wheels (27) are arranged on the side of the vehicle body (26); and the push rod (29) is fixedly connected to the top of the vehicle body (26).

6. The annular pipe pushing device according to claim 1, characterized in that: The variable frequency motor (7) is electrically connected to a touch screen controller (30).

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