A kind of prefabricated channel corrugated pipe auxiliary pushing device for prefabricated T beam reinforcement cage

Abstract

The utility model discloses a kind of for prefabricated T beam reinforcement cage prefabricated duct corrugated pipe auxiliary push device, belong to T beam prefabricated duct corrugated pipe installation equipment technical field, including trolley, the upper surface of trolley is fixedly connected with two air cylinders, the output end of air cylinder is fixedly connected with lifting platform, the bottom vertical fixed connection of lifting platform has motor one, the upper motor shaft of motor one is fixedly connected with driving gear after passing through lifting platform, rotatingly connected with support column on lifting platform, support column is fixedly connected with driven gear meshing with driving gear on support column, the top of support column is fixedly connected with adjusting platform, the top of adjusting platform is provided with limit slot, the outer wall of adjusting platform is fixedly connected with motor two, the motor shaft of motor two is fixedly connected with screw rod, screw rod is screw-connected with screw slide on screw rod. The utility model pushes corrugated pipe under the height, angle, horizontal position synergic adjustment, ensure that corrugated pipe is accurately worn into T beam duct, and pushing efficiency is high, and pushing is time-saving and labor-saving, and pushing is accurate, avoid damaging pipe body.

Description

Technical Field

[0001] This utility model relates to the technical field of T-beam precast duct corrugated pipe installation equipment, and in particular to an auxiliary pushing device for precast duct corrugated pipes in precast T-beam reinforcement cages. Background Technology

[0002] Corrugated pipes for T-beams are metal spiral conduits pre-embedded inside concrete T-beams. Their core function is to provide channels for the subsequent tensioning of prestressed steel strands. Before the T-beam concrete is poured, the corrugated pipes are fixed in the designed positions. After the concrete hardens, a through channel is formed, through which the prestressed steel strands are inserted and tensioned, enabling the T-beam to acquire the bending resistance to resist loads. It is a key carrier of the T-beam prestressed system and directly affects the bridge's load-bearing capacity and safety.

[0003] In the existing technology, the construction of corrugated pipes for T-beams mainly relies on the following traditional methods: workers climb to the top of the beam via scaffolding, lift the pipes to the height of the reserved holes by hand, carry the corrugated pipes on their shoulders or by hand, visually estimate the position of the holes, direct the pipe-carrying workers to adjust the ends of the corrugated pipes to roughly align with the holes, and manually push the pipes into the reserved holes of the T-beams.

[0004] In existing technologies, corrugated pipes are generally fed manually, which has problems such as low efficiency, poor precision, and easy damage to the pipe body. It is labor-intensive, requires multiple people to cooperate, and is inefficient. Utility Model Content

[0005] The purpose of this invention is to provide an auxiliary pushing device for precast corrugated pipes in precast T-beam steel cages, which achieves high pushing efficiency, saves time and effort, pushes accurately, and avoids damage to the pipe body.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an auxiliary pushing device for precast corrugated pipes in precast T-beam reinforcement cages, comprising a trolley, two cylinders fixedly connected to the upper surface of the trolley, a lifting platform fixedly connected to the output end of each cylinder, a motor fixedly connected vertically to the bottom of the lifting platform, a drive gear fixedly connected to the upper motor shaft passing through the lifting platform, a support column rotatably connected to the lifting platform, a driven gear meshing with the drive gear fixedly connected to the support column, and an adjustment platform fixedly connected to the top of the support column. A limiting groove is provided on the top of the platform. A second motor is fixedly connected to the outer wall of the adjusting platform, with the motor shaft facing the length direction of the limiting groove. A screw is fixedly connected to the motor shaft of the second motor. A threaded slide is screwed onto the screw. The threaded slide moves directionally along the limiting groove under the drive of the screw. A U-shaped support frame is fixedly connected to the top of the threaded slide. Two coaxial and opposite electric push rods are fixedly connected to the outside of the two vertical side plates of the support frame. A clamping plate is fixedly connected to the push rod end of the electric push rod. The two clamping plates can clamp the pre-fabricated corrugated pipe to be delivered and push it into the steel cage.

[0007] Furthermore, the end of the screw furthest from the second motor is rotatably connected to the inner wall of the limiting groove.

[0008] Furthermore, the outer wall of the aforementioned threaded slide is in contact with the inner wall of the limiting groove.

[0009] Furthermore, the aforementioned clamping plate is semi-circular, and an anti-slip pad is provided on the side of the clamping plate that holds the pre-fabricated corrugated pipe.

[0010] Furthermore, a mounting plate is fixedly connected to the top of the aforementioned clamping plate, and a laser displacement sensor is fixedly connected to the inner wall of the mounting plate.

[0011] Furthermore, a support rod is fixedly connected to the top surface of the aforementioned adjustment platform. A positioning ring is fixedly connected to the top of the support rod, facing the length direction of the limiting groove. A telescopic rod is fixedly connected to the top of the inner surface of the positioning ring. A positioning plate is fixedly connected to the lower end of the telescopic rod. A compression spring is sleeved on the telescopic rod. The two ends of the compression spring abut against the inner surface of the positioning ring and the positioning plate, respectively. A ball groove is opened on the side of the positioning plate that presses against the pre-made perforated corrugated pipe. A ball bearing is rotatably connected to the inner wall of the ball groove.

[0012] Furthermore, the aforementioned support rod is fixedly connected to the top of the adjustment platform on the side away from the second motor, and the movable end of the telescopic rod is fixedly connected to the outer wall of the positioning plate.

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] 1) The lifting platform is smoothly raised and lowered by a dual-cylinder drive. The first motor achieves multi-angle adjustment by meshing the active gear with the driven gear. The second motor drives the screw to move the threaded slide horizontally. The core is that after the corrugated pipe is clamped by the clamping plate controlled by the electric push rod, it is actively pushed horizontally by the threaded slide, which significantly improves the accuracy of pipe delivery and ensures that the corrugated pipe is efficiently inserted into the corresponding position of the T-beam steel cage. The pushing efficiency is high, the pushing is time-saving and labor-saving, the pushing is accurate, and the pipe body is not damaged.

[0015] 2) The anti-slip mat can achieve anti-slip clamping and anti-slip, and a laser displacement sensor is set to monitor the spacing in real time.

[0016] 3) The positioning ring provides a guiding reference and auxiliary support. The telescopic rod and compression spring drive the positioning plate to elastically press the corrugated pipe wall, dynamically adapting to the pipe diameter deviation. The positioning plate surface is equipped with ball grooves and ball bearing structures to convert sliding friction into rolling friction, which greatly reduces the pipe feeding resistance, ensures the smoothness and positioning accuracy of continuous corrugated pipe pushing, and effectively avoids pipe wall damage. Attached Figure Description

[0017] Figure 1 This is a left-side schematic diagram of an auxiliary pushing device for precast corrugated pipes in precast T-beam steel cages.

[0018] Figure 2 A bottom view schematic diagram of an auxiliary pushing device for precast corrugated pipes in precast T-beam steel cages;

[0019] Figure 3 This is a top view schematic diagram of an auxiliary pushing device for precast corrugated pipes in precast T-beam steel cages.

[0020] Figure 4 for Figure 3 Enlarged structural diagram of section A in the middle;

[0021] Figure 5 This is a schematic diagram of the positioning ring structure.

[0022] In the diagram: 1. Trolley; 2. Cylinder; 3. Lifting platform; 4. Motor 1; 5. Drive gear; 6. Support column; 7. Driven gear; 8. Adjusting platform; 9. Motor 2; 10. Screw; 11. Limit groove; 12. Threaded slide; 13. Support frame; 14. Electric push rod; 15. Clamping plate; 16. Anti-slip mat; 17. Mounting plate; 18. Sensor; 19. Support rod; 20. Positioning ring; 21. Telescopic rod; 22. Compression spring; 23. Positioning plate; 24. Ball groove; 25. Ball bearing. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Example 1: Refer to Figures 1-3 An auxiliary pushing device for precast corrugated pipes in precast T-beam reinforcement cages includes a trolley 1 with a push-pull handle at the front end. Two cylinders 2 are fixedly connected to the upper surface of the trolley 1, equidistantly distributed on the trolley 1, ensuring the smooth lifting of a lifting platform 3. The output end of the cylinders 2 is fixedly connected to the lifting platform 3. A motor 4 is vertically fixedly connected to the bottom of the lifting platform 3, and a drive gear 5 is fixedly connected to the upper part of the motor 4 after passing through the lifting platform. A support column 6 is rotatably connected to the lifting platform 3. A driven gear 7, which meshes with the driving gear, is fixedly connected to the support column 6. The driving gear 5 meshes with the driven gear 7. An adjusting platform 8 is fixedly connected to the top of the support column 6. A limit groove 11 is formed on the top of the adjusting platform 8. A second motor 9 is fixedly connected to the outer wall of the adjusting platform 8, with the motor shaft facing the length direction of the limit groove 11. A screw 10 is fixedly connected to the motor shaft of the second motor 9. The end of the screw 10 away from the second motor 9 rotates with the inner wall of the limit groove 11. The screw 10 is connected to a threaded slide 12, which maintains the stability of the screw rotation. The threaded slide 12 moves directionally along the limiting groove 11 under the drive of the screw 10. The outer wall of the threaded slide 12 is adapted to the inner wall of the limiting groove 11 (fitting or maintaining a clearance fit). A U-shaped support frame 13 is fixedly connected to the top of the threaded slide 12. The support frame 13 is U-shaped and includes a base plate fixedly connected to the threaded slide and vertical side plates fixedly connected to both ends of the base plate. Two coaxially opposite electric push rods 14 are fixedly connected to the outside of the two vertical side plates, that is, the two electric push rods 14 are mirror images of each other with the central axis of the support frame 13 as the axis of symmetry. The push rod ends of the electric push rods 14 are fixedly connected to clamping plates 15. The two sets of electric push rods 14 control the two sets of clamping plates 15 to move closer or further away in an arc. The clamping plates 15 are semi-circular (semi-circular in the attached figure) or V-shaped. The two clamping plates 15 can clamp the pre-fabricated corrugated pipe to be sent and push it into the steel cage.

[0025] Reference Figures 2-4 The clamping plate 15 has an anti-slip pad 16 on one side of the pre-formed corrugated pipe. The top of the two clamping plates 15 is fixedly connected to the mounting plate 17. A laser displacement sensor 18 is fixedly connected to the inner side of one of the mounting plates 17. The laser displacement sensor 18 is facing the other mounting plate 17. The laser distance sensor 18 has the characteristics of high precision and high response speed. It can accurately measure the distance between the two clamping plates 15 in a short time, so as to facilitate stopping. Moreover, the non-contact measurement method will not cause wear or interference to the two plates.

[0026] Reference Figure 5A support rod 19 is fixedly connected to the top surface of the adjustment platform 8. The support rod 19 is fixedly connected to the top of the adjustment platform 8 on the side away from the limiting groove of the motor 9 in the length direction. A positioning ring 20 is fixedly connected to the top of the support rod 19, facing the length direction of the limiting groove. The positioning ring 20 is used to position the pre-made corrugated pipe through the hole. Two telescopic rods 21 are fixedly connected to the top of the inner surface of the positioning ring 20. Compression springs 22 are sleeved on the outer wall of the telescopic rods 21. The telescopic rod includes an inner tube and an outer tube sleeved on the upper part of the inner tube. An anti-detachment mechanism (using the anti-detachment mechanism on the umbrella telescopic tube) is provided at the lower end of the outer tube to prevent the upper end of the inner tube from detaching from the outer tube. Two sets of telescopic rods 21 and compression springs 22 are provided and are evenly distributed on the positioning ring 20. The two ends of the spring 22 abut (or are fixedly connected) against the inner surface of the positioning ring and the positioning plate 23 respectively. The lower end of the telescopic rod 21 is fixedly connected to the outer wall of the positioning plate 23. The positioning plate 23 has a ball groove 24 on one side of the pre-made channel corrugated pipe. The inner wall of the ball groove 24 is rotatably connected to a ball ball 25. The ball ball 25 is fixedly connected to the ball groove by a limiting ring to achieve anti-disengagement limiting. The outer surface of the limiting ring is flush with the bottom surface of the positioning plate and the ball ball protrudes from the limiting ring. The ball ball 25 is set in a raised shape on the surface of the positioning plate 23. There are several sets of ball groove 24 and ball ball 25, which are set in pairs on the lower surface of the positioning plate 23 and the inner surface of the positioning ring 20. During the movement of the corrugated pipe, the friction between the positioning ring 20 and the corrugated pipe can be reduced.

[0027] Working principle: The operator pushes the trolley 1 to the construction position of the T-beam steel cage, and starts two sets of cylinders 2 to simultaneously push the lifting platform 3 to rise and fall, so that the positioning ring 20 and the two sets of clamping plates 15 are aligned with the reserved holes of the T-beam. Motor 1 4 drives the drive gear 5 to rotate, which drives the driven gear 7 on the support column 6 to rotate the entire adjusting platform 8, adjusting the horizontal angle of the corrugated pipe. Motor 2 9 drives the screw 10 to rotate in the limiting groove 11, which drives the threaded slide 12 and the support frame 13 to move horizontally, so that the axis of the corrugated pipe is aligned with the center of the positioning ring 20. The two sets of electric push rods 14 simultaneously push the semi-circular clamping plates 15 to close in an arc shape, clamping the prestressed corrugated pipe through the anti-slip pad 16. The two sets of clamping plates 15 in the clamped state move horizontally with the threaded slide 12, pushing the corrugated pipe. The tube is fed towards the positioning ring 20. The laser distance sensor 18 monitors the contact between the clamping plate 15 and the bellows in real time by measuring the distance. The distance feedback provides clamping stability. When the bellows enters the positioning ring 20, the positioning plate 23 is compressed and moves upward to compress the compression spring 22. The telescopic rod 21 retracts to buffer the movement, and the ball bearing 25 rolls in the ball groove 24 to reduce the frictional resistance between the bellows and the positioning plate 23. The clamping mechanism pushes the bellows under the coordinated adjustment of height, angle, and horizontal position. Then, the bellows is released by the clamping plate 15 and returns to the initial position. The rear end of the bellows is clamped again for feeding. The sensor 18 continuously monitors the position. The multiple sets of telescopic rods 21 and compression springs 22 of the positioning ring 20 dynamically adapt to the pipe diameter deviation to ensure that the bellows is accurately inserted into the T-beam channel.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An auxiliary pushing device for precast corrugated pipes in precast T-beam reinforcement cages, characterized in that, Includes a trolley (1), on the upper surface of which two cylinders (2) are fixedly connected, and the output end of the cylinders (2) is fixedly connected to a lifting platform (3). The bottom of the lifting platform (3) is vertically fixedly connected to a motor (4). The upper motor shaft of the motor (4) passes through the lifting platform and is fixedly connected to a drive gear (5). A support column (6) is rotatably connected to the lifting platform (3). A driven gear (7) meshing with the drive gear is fixedly connected to the support column (6). An adjustment platform (8) is fixedly connected to the top of the support column (6). A limit groove (11) is opened on the top of the adjustment platform (8). A second motor (2) is fixedly connected to the outer wall of the adjustment platform (8). 9) The motor shaft is aligned with the length of the limiting groove (11). The motor shaft of the second motor (9) is fixedly connected to a screw (10). A threaded slide (12) is screwed onto the screw (10). The threaded slide (12) moves directionally along the limiting groove (11) under the drive of the screw (10). A U-shaped support frame (13) is fixedly connected to the top of the threaded slide (12). Two coaxial electric push rods (14) are fixedly connected to the outside of the two vertical side plates of the support frame (13). A clamping plate (15) is fixedly connected to the push rod end of the electric push rod (14). The two clamping plates (15) can clamp the pre-fabricated corrugated pipe to be sent and push it into the steel cage.

2. The auxiliary pushing device for precast corrugated pipes in precast T-beam reinforcement cages according to claim 1, characterized in that, The end of the screw (10) away from the motor (9) is rotatably connected to the inner wall of the limiting groove (11).

3. The auxiliary pushing device for precast corrugated pipes in precast T-beam reinforcement cages according to claim 1, characterized in that, The outer wall of the threaded slide (12) is in contact with the inner wall of the limiting groove (11).

4. The auxiliary pushing device for precast corrugated pipes in precast T-beam reinforcement cages according to claim 1, characterized in that, The clamping plate (15) is semi-circular, and an anti-slip pad (16) is provided on the side of the clamping plate (15) that holds the pre-made corrugated pipe.

5. The auxiliary pushing device for precast corrugated pipes in precast T-beam reinforcement cages according to claim 1, characterized in that, A mounting plate (17) is fixedly connected to the top of the clamping plate (15), and a laser displacement sensor (18) is fixedly connected to the inner wall of the mounting plate (17).

6. The auxiliary pushing device for precast corrugated pipes in precast T-beam reinforcement cages according to claim 1, characterized in that, The top surface of the adjustment platform (8) is fixedly connected to a support rod (19). The top end of the support rod (19) is fixedly connected to a positioning ring (20) facing the length direction of the limiting groove. The top of the inner surface of the positioning ring (20) is fixedly connected to a telescopic rod (21). The lower end of the telescopic rod (21) is fixedly connected to a positioning plate (23). A compression spring (22) is sleeved on the telescopic rod (21). The two ends of the compression spring (22) abut against the inner surface of the positioning ring (20) and the positioning plate (23) respectively. A ball groove (24) is opened on the side of the positioning plate (23) that presses against the pre-made perforated corrugated pipe. A ball bearing (25) is rotatably connected to the inner wall of the ball groove (24).

7. The auxiliary pushing device for precast corrugated pipes in precast T-beam reinforcement cages according to claim 6, characterized in that, The support rod (19) is fixedly connected to the top of the limiting groove on the side of the adjustment platform (8) away from the motor (9) in the length direction.

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