An automatic displacement device for tunnel steel arch frame after cold bending

Abstract

The present invention belongs to the technical field of tunnel steel arch processing, and more specifically, relates to a device for automatically shifting the position of a tunnel steel arch after cold bending. It includes a walking slide base, a walking slide feeder, a rotating seat, a guide roller assembly, a clamping assembly and a pressing assembly. The walking slide base is provided with a slide rail, the walking slide feeder is slidably arranged on the slide rail, the rotating seat is arranged on the top of the walking slide feeder through a slewing bearing, the guide roller assembly, the clamping assembly and the pressing assembly are all arranged on the upper surface of the rotating seat, and the guide roller assembly and the pressing assembly are respectively arranged on both sides of the clamping assembly. The device not only ensures that the I-beam of the steel arch can be quickly and accurately adjusted to the predetermined position after forming and cutting, but also greatly reduces manual intervention and improves construction efficiency. The present invention is mainly used in the automatic shifting of tunnel steel arches after cold bending.

Description

Technical Field

[0001] The present invention belongs to the technical field of tunnel steel arch frame processing, and more specifically, relates to an automatic displacement device for tunnel steel arch frame after cold bending. Background Art

[0002] In tunnel construction, steel arches serve as the primary support structure, and their quality and installation efficiency are directly related to the safety and progress of tunnel construction. Currently, on tunnel steel arch production lines, cold-bent I-beams are typically transferred manually or semi-automatically. Manual handling: Workers use lifting equipment to remove the cold-bent I-beams from the cold bending machine and then transport them to the next processing equipment. This method is not only labor-intensive but also inefficient. Human factors can easily cause problems such as bumps and deformation of the I-beams, affecting product quality. Semi-automatic transfer devices: Some production lines use simple transfer devices such as roller conveyors and chain conveyors. However, these devices only enable linear transport of I-beams and cannot meet complex process requirements such as clamping and position adjustment of the I-beams. Manual intervention is still required for processing steps that require precise positioning of the I-beams or coordination with other equipment.

[0003] The existing transfer method makes it difficult to achieve full automation of tunnel steel arch production, resulting in limited production efficiency and an inability to meet the demand for fast and efficient supply of steel arches in modern tunnel construction. Traditional clamping devices are prone to problems such as loose clamping and sliding of I-beams when clamping cold-bent I-beams. The clamping effect is even worse when there is oil, rust or slight deformation on the surface of the I-beams. Due to the diversity and complexity of tunnel projects, the specifications of the required I-beams vary. Existing transfer devices are often only able to accommodate I-beams of specific specifications. When the size of the I-beams changes, the device needs to be complexly adjusted or even some components need to be replaced, which increases production costs and the difficulty of equipment maintenance. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention provides an automatic displacement device for cold-bent tunnel steel arches. This device automatically clamps and stably transports cold-bent I-beams, and can accommodate I-beams of varying specifications. This device is of great significance for improving tunnel steel arch production efficiency, ensuring product quality, and reducing labor intensity.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A device for automatically displacing a tunnel steel arch frame after cold bending, comprising a walking slide base, a walking slide feed rack, a rotating seat, a guide roller assembly, a clamping assembly and a pressing assembly; the walking slide base is provided with a slide rail, the walking slide feed rack is slidably arranged on the slide rail, the rotating seat is arranged on the top of the walking slide feed rack through a slewing bearing, the guide roller assembly, the clamping assembly and the pressing assembly are all arranged on the upper surface of the rotating seat, and the guide roller assembly and the pressing assembly are respectively arranged on both sides of the clamping assembly.

[0007] A walking motor is provided in the walking slide feeding rack, the output end of the walking motor is downwardly provided, the output end of the walking motor is connected to a walking control gear, a walking rack matching the walking control gear is provided in the walking slide base, and the walking control gear is engaged with the walking rack.

[0008] A rotation control motor is provided in the walking slide feeding frame, the output end of the rotation control motor is upwardly arranged, the output end of the rotation control motor is connected to a rotation control gear, and the slewing bearing is engaged with the rotation control gear.

[0009] A groove is provided at the edge of one side of the rotating seat, and the guide roller assembly is arranged in the groove. The guide roller assembly includes an electric guide roller, a hydraulic lifting platform and a guide rod. Two groups of the hydraulic lifting platforms are symmetrically arranged in the groove, and the bottom of the electric guide roller is connected to the telescopic end of the hydraulic lifting platform.

[0010] The guide rods are symmetrically arranged in two groups at the bottom of the electric guide roller. The guide rods are arranged vertically downward, and the grooves are provided with holes that match the guide rods.

[0011] Two groups of rollers are provided on the rotating seat. The two groups of rollers are arranged in parallel. The positions of the rollers are matched with the clamping assembly.

[0012] A vertical plate is provided on the side edge of the rotating seat, and the clamping assembly is provided on the vertical plate.

[0013] The clamping assembly includes a clamping cylinder, a clamping movable plate and a clamping guide rod. The clamping cylinder is fixedly arranged on the vertical plate. The telescopic end of the clamping cylinder passes through the vertical plate and is connected to the clamping movable plate.

[0014] A clamping guide rod is symmetrically arranged on one side of the clamping movable plate close to the vertical plate, and the clamping guide rod passes through the vertical plate.

[0015] A clamping claw is hinged on one side of the clamping movable plate away from the vertical plate.

[0016] The pressing assembly includes a stand, an adjusting screw and a pressure roller. The stand is arranged on the rotating seat. The adjusting screw is threadedly connected to the stand. The pressure roller is connected to the bottom of the adjusting screw through a pressure roller connecting seat.

[0017] A hand-controlled handle is provided on the top of the adjusting screw for manually adjusting the raising and lowering of the adjusting screw.

[0018] The bottom of the walking slide base is provided with supporting feet to increase the stability of the device.

[0019] Limiting blocks are provided at both ends of the slide rail in the length direction to prevent the walking slide feeding rack from sliding out of the slide rail.

[0020] The hydraulic lifting platform is provided with a hydraulic lock to prevent the electric guide roller from accidentally falling during the lifting process.

[0021] The clamping cylinder is a double-acting cylinder, which can realize the clamping and loosening of the clamping movable plate.

[0022] The inner surface of the clamping claw is provided with anti-slip grooves to improve the clamping force on the I-beam.

[0023] The outer surface of the pressing roller is provided with an elastic layer to adapt to I-beams of different specifications and protect the surface from damage.

[0024] The device further comprises a control system, which is electrically connected to the travel motor, the rotation control motor, the clamping cylinder and the hydraulic lifting platform to achieve automatic control.

[0025] The control system has two operation modes: manual and automatic.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] Precise adjustment of the travel motor and the rotary control motor can control the position of the travel slide feeder and the rotation angle of the rotary seat, achieving accurate adjustment of the device's transport and rotation positions. The guide roller assembly can receive and guide the I-beams to be displaced and transported. The electric guide rollers can be raised and lowered by the hydraulic lift, and the height of the electric guide rollers can be flexibly adjusted according to the construction situation. The design of the supporting rollers facilitates the shifting of displaced I-beams. The side guide rollers and clamping claws cooperate to clamp and fix the curved I-beams, making it convenient for them to be transported after fixation. After the I-beam extends out of the stand and reinforcement plate, the position of the pressure rollers is manually adjusted using the hand-controlled handle so that the pressure rollers press the I-beams tightly, ensuring stability during transport. The device not only ensures that the I-beams of the steel arch frame can be quickly and accurately adjusted to the predetermined position after forming and cutting, but also greatly reduces manual intervention, improving construction efficiency, and provides a solid guarantee for the precise transportation of subsequent processes. As the position adjustment accuracy of the steel arch frame has been significantly improved, subsequent installation, welding and fixation processes can be carried out more smoothly, thereby effectively reducing construction errors and improving the overall project quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the present invention;

[0029] Figure 2 This is a structural schematic diagram of the present invention from another angle;

[0030] Figure 3 It is a front view of the present invention;

[0031] Figure 4 It is a side view of the present invention;

[0032] Figure 5 A top view of the present invention;

[0033] Figure 6 It is a schematic diagram of the slewing bearing in the present invention.

[0034] In the figure: 1 is the walking slide base, 2 is the slide rail, 3 is the walking rack, 4 is the walking slide feed rack, 5 is the rotating seat, 6 is the walking motor, 7 is the walking control gear, 8 is the rotation control motor, 9 is the slewing bearing, 10 is the slewing bearing, 11 is the electric guide roller, 12 is the hydraulic lifting platform, 13 is the guide rod, 14 is the roller, 15 is the side guide roller, 16 is the vertical plate, 17 is the clamping cylinder, 18 is the clamping movable plate, 19 is the clamping claw, 20 is the clamping guide rod, 21 is the vertical frame, 22 is the nut, 23 is the adjusting screw, 24 is the hand-controlled handle, 25 is the pressure roller connecting seat, 26 is the pressure roller, and 27 is the reinforcement plate. DETAILED DESCRIPTION

[0035] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from the description. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0037] like Figures 1 to 6 As shown, an automatic displacement device for a tunnel steel arch frame after cold bending comprises a walking slide base (1), a walking slide feed frame (4), a rotating seat (5), a guide roller assembly, a clamping assembly and a pressing assembly, wherein the walking slide base (1) is provided with a slide rail (2), the walking slide feed frame (4) is slidably arranged on the slide rail (2), the rotating seat (5) is arranged on the top of the walking slide feed frame (4) through a slewing bearing (10), the guide roller assembly, the clamping assembly and the pressing assembly are all arranged on the upper surface of the rotating seat (5), and the guide roller assembly and the pressing assembly are respectively arranged on both sides of the clamping assembly.

[0038] After the I-beam of the steel arch frame is cut in the previous process, the walking slide feed frame 4 moves to the designated position on the slide rail 2 of the walking slide base 1, the rotating seat 5 adjusts the angle according to the position of the I-beam, the guide roller assembly receives the I-beam, and the I-beam is fixed by the clamping assembly and the pressing assembly. When the I-beam is fixed and stable, the walking slide feed frame 4 moves to feed, and the rotating seat 5 rotates according to the feeding path.

[0039] Preferably, a travel motor 6 is provided in the travel slide feeder 4, the output end of the travel motor 6 is downwardly disposed, the output end of the travel motor 6 is connected to a travel control gear 7, a travel rack 3 matching the travel control gear 7 is provided in the travel slide base 1, and the travel control gear 7 is meshed with the travel rack 3. Driven by the travel motor 6, the travel control gear 7 meshes with the travel rack 3, driving the travel slide feeder 4 to move within the range of the slide base rail 2.

[0040] Preferably, a rotation control motor 8 is provided in the walking slide feed frame 4, the output end of the rotation control motor 8 is arranged upward, the output end of the rotation control motor 8 is connected to a rotation control gear 9, and the slewing bearing 10 is engaged with the rotation control gear 9. The rotation control motor 8 drives the rotation control gear 9 to rotate, thereby controlling the rotation of the slewing bearing 10, thereby achieving accurate adjustment of the rotation angle of the rotating seat 5.

[0041] Preferably, a groove is formed on the edge of one side of the rotating base 5, and a guide roller assembly is disposed in the groove. The guide roller assembly includes an electric guide roller 11, a hydraulic lifting platform 12, and a guide rod 13. Two groups of hydraulic lifting platforms 12 are symmetrically arranged in the groove. The bottom of the electric guide roller 11 is connected to the telescopic end of the hydraulic lifting platform 12. The hydraulic lifting platform 12 can flexibly control the height of the electric guide roller 11, and the guide rod 13 can vertically control the raising and lowering of the electric guide roller 11.

[0042] Preferably, two groups of guide rods 13 are symmetrically arranged at the bottom of the electric guide roller 11. The guide rods 13 are arranged vertically downward, and the grooves are provided with holes matching the guide rods 13.

[0043] Preferably, two groups of rollers 14 are provided on the rotating seat 5 , and the two groups of rollers 14 are arranged in parallel, and the positions of the rollers 14 are matched with the clamping assembly.

[0044] Preferably, a vertical plate 16 is provided on the side edge of the rotating seat 5 , and the clamping assembly is provided on the vertical plate 16 .

[0045] Preferably, the clamping assembly includes a clamping cylinder 17, a clamping movable plate 18, and a clamping guide rod 20. The clamping cylinder 17 is fixedly mounted on the vertical plate 16. The telescopic end of the clamping cylinder 17 passes through the vertical plate 16 and is connected to the clamping movable plate 18. The side guide rollers 15 work together with the clamping assembly to clamp and secure the I-beam.

[0046] Preferably, a clamping guide rod 20 is symmetrically provided on one side of the clamping movable plate 18 close to the vertical plate 16 , and the clamping guide rod 20 is provided through the vertical plate 16 .

[0047] Preferably, a clamping claw 19 is hingedly connected to a side of the clamping movable plate 18 away from the vertical plate 16 .

[0048] Preferably, the clamping assembly includes a stand 21, an adjusting screw 23, and a pressure roller 26. The stand 21 is mounted on the rotating base 5, the adjusting screw 23 is threadedly connected to the stand 21, and the pressure roller 26 is connected to the bottom of the adjusting screw 23 via a pressure roller connecting base 25. The clamping cylinder 17 controls the horizontal movement of the clamping movable plate 18. The movement path of the clamping movable plate 18 is stabilized by the clamping guide rod 20. The clamping claw 19 is hinged to the clamping movable plate 18 and has an adjustable angle, which improves the flexibility of clamping the I-beam.

[0049] Preferably, a hand-controlled handle 24 is provided on the top of the adjusting screw 23 for manually adjusting the height of the adjusting screw 23. According to the size of the I-beam, the pressure roller 26 is adjusted to a suitable height by the hand-controlled handle 24 before operation. During the operation of the I-beam, according to the actual situation, the staff manually adjusts the height of the adjusting screw 23 and the pressure roller 26 by the hand-controlled handle 24 to achieve the desired compression effect on the I-beam.

[0050] Preferably, support feet are provided at the bottom of the walking platform base 1 to increase the stability of the device.

[0051] Preferably, limit blocks are provided at both ends of the slide rail 2 in the length direction to prevent the walking slide feeding rack 4 from sliding out of the slide rail 2.

[0052] Preferably, a hydraulic lock is provided on the hydraulic lifting platform 12 to prevent the electric guide roller 11 from accidentally falling during the lifting process.

[0053] Preferably, the clamping cylinder 17 is a double-acting cylinder, which can realize the clamping and loosening of the clamping movable plate 18.

[0054] Preferably, the inner surface of the clamping claw 19 is provided with anti-slip grooves to improve the clamping force on the I-beam.

[0055] Preferably, the outer surface of the pressing roller 26 is provided with an elastic layer to adapt to I-beams of different specifications and protect its surface from damage.

[0056] Preferably, the device further comprises a control system, which is electrically connected to the travel motor 6, the rotation control motor 8, the clamping cylinder 17 and the hydraulic lifting platform 12 to achieve automatic control.

[0057] Preferably, the control system has two operating modes: manual and automatic.

[0058] By moving the walking slide feeding rack 4 and rotating the rotating seat 5, the I-beam that has been cut in the previous process is adjusted in position and transported. The electric guide roller 11 is raised by the hydraulic lifting platform 12. The electric guide roller 11 is raised and rotated to control the I-beam to enter the rotating seat 5. The clamping cylinder 17 controls the movement of the clamping movable plate 18 until the clamping claw 19 and the side guide roller 15 clamp the I-beam. Then the walking slide feeding rack 4 slides, and the slewing bearing 10 drives the rotating seat 5 to rotate, and the I-beam on the rotating seat 5 is moved to the appropriate position. The clamping cylinder 17 is released to send the I-beam out.

[0059] The above only describes in detail the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in this field without departing from the purpose of the present invention. Various changes should be included in the scope of protection of the present invention.

Claims

1. An automatic displacement device for a tunnel steel arch frame after cold bending, characterized by: The invention comprises a walking slide base (1), a walking slide feeding frame (4), a rotating seat (5), a guide roller assembly, a clamping assembly and a pressing assembly, wherein a slide rail (2) is provided on the walking slide base (1), the walking slide feeding frame (4) is slidably provided on the slide rail (2), the rotating seat (5) is provided on the top of the walking slide feeding frame (4) via a slewing bearing (10), the guide roller assembly, the clamping assembly and the pressing assembly are all provided on the upper surface of the rotating seat (5), and the guide roller assembly and the pressing assembly are respectively provided on both sides of the clamping assembly.

2. The automatic displacement device for cold-bending a tunnel steel arch according to claim 1, characterized in that: A walking motor (6) is provided in the walking slide feeding frame (4), the output end of the walking motor (6) is provided downward, the output end of the walking motor (6) is connected to a walking control gear (7), a walking rack (3) matching the walking control gear (7) is provided in the walking slide base (1), and the walking control gear (7) is meshed with the walking rack (3).

3. The automatic displacement device for cold-bending a tunnel steel arch according to claim 1, characterized in that: A rotation control motor (8) is provided in the walking slide feeding frame (4), the output end of the rotation control motor (8) is arranged upward, the output end of the rotation control motor (8) is connected to a rotation control gear (9), and the slewing bearing (10) is engaged with the rotation control gear (9).

4. The automatic displacement device for cold-bending a tunnel steel arch according to claim 1, characterized in that: A groove is provided at the edge of one side of the rotating seat (5), and a guide roller assembly is arranged in the groove. The guide roller assembly includes an electric guide roller (11), a hydraulic lifting platform (12) and a guide rod (13). Two groups of the hydraulic lifting platforms (12) are symmetrically arranged in the groove, and the bottom of the electric guide roller (11) is connected to the telescopic end of the hydraulic lifting platform (12).

5. The automatic displacement device for cold-bending a tunnel steel arch according to claim 4, characterized in that: Two groups of guide rods (13) are symmetrically arranged at the bottom of the electric guide roller (11), the guide rods (13) are arranged vertically downward, and the groove is provided with holes matching the guide rods (13).

6. The automatic displacement device for cold-bending a tunnel steel arch according to claim 1, characterized in that: Two groups of rollers (14) are provided on the rotating seat (5), the two groups of rollers (14) are arranged in parallel, and the positions of the rollers (14) are matched with the clamping assembly.

7. The automatic displacement device for cold-bending a tunnel steel arch according to claim 1, characterized in that: A vertical plate (16) is provided on the side edge of the rotating seat (5), and the clamping assembly is provided on the vertical plate (16).

8. The automatic displacement device for cold-bending a tunnel steel arch according to claim 7, characterized in that: The clamping assembly comprises a clamping cylinder (17), a clamping movable plate (18) and a clamping guide rod (20); the clamping cylinder (17) is fixedly arranged on the vertical plate (16); the telescopic end of the clamping cylinder (17) passes through the vertical plate (16) and is connected to the clamping movable plate (18).

9. The automatic displacement device for cold-bending a tunnel steel arch according to claim 8, characterized in that: A clamping guide rod (20) is symmetrically arranged on one side of the clamping movable plate (18) close to the vertical plate (16), and the clamping guide rod (20) is arranged to pass through the vertical plate (16).

10. The automatic displacement device for cold-bending a tunnel steel arch according to claim 8, characterized in that: A clamping claw (19) is hingedly connected to one side of the clamping movable plate (18) away from the vertical plate (16).

11. The automatic displacement device for cold-bending a tunnel steel arch according to claim 1, characterized in that: The pressing assembly comprises a stand (21), an adjusting screw (23) and a pressure roller (26); the stand (21) is arranged on the rotating seat (5); the adjusting screw (23) is threadedly connected to the stand (21); and the pressure roller (26) is connected to the bottom of the adjusting screw (23) via a pressure roller connecting seat (25).

12. The automatic displacement device for cold-bending a tunnel steel arch according to claim 11, characterized in that: A hand-controlled handle (24) is provided on the top of the adjusting screw (23) for manually adjusting the raising and lowering of the adjusting screw (23).

13. The automatic displacement device for cold-bending a tunnel steel arch according to claim 1, characterized in that: The bottom of the walking platform base (1) is provided with supporting feet to increase the stability of the device.

14. The automatic displacement device for cold-bending a tunnel steel arch according to claim 1, characterized in that: Limiting blocks are provided at both ends of the slide rail (2) in the length direction to prevent the walking slide feeding frame (4) from sliding out of the slide rail (2).

15. The automatic displacement device for cold-bending a tunnel steel arch according to claim 4, characterized in that: The hydraulic lifting platform (12) is provided with a hydraulic lock to prevent the electric guide roller (11) from accidentally falling during the lifting process.

16. The automatic displacement device for cold-bending a tunnel steel arch according to claim 8, characterized in that: The clamping cylinder (17) is a double-acting cylinder capable of clamping and loosening the clamping movable plate (18).

17. The automatic displacement device for cold-bending a tunnel steel arch according to claim 10, characterized in that: The inner surface of the clamping claw (19) is provided with anti-slip grooves to improve the clamping force on the I-beam.

18. The automatic displacement device for cold-bending tunnel steel arch according to claim 11, characterized in that: The outer surface of the pressing roller (26) is provided with an elastic layer to adapt to I-beams of different specifications and protect the surface from damage.

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