A tunnel pipe construction device and a tunnel pipe construction method

Abstract

The application discloses a tunnel inner pipeline construction equipment and a tunnel inner pipeline construction method, and particularly relates to the field of pipeline construction equipment. The equipment comprises two groups of walking mechanisms, the walking mechanism comprises a support frame, a roller is rotatably arranged on the support frame, the roller is used for contacting with the inner wall of the tunnel to limit the position of the support frame in the tunnel, and the roller moves the walking mechanism in the tunnel by rolling on the inner wall of the tunnel; and a bending mechanism is arranged between the two walking mechanisms. The walking mechanism can automatically pass through the curved tunnel through the design of the segmented walking mechanism, the workload of the staff is reduced, the welding gun can automatically weld the pipeline in the curved tunnel, the distance between the output end of the welding gun and the pipeline can be ensured to be always the same during welding, the welding position and angle of the pipeline do not change, the consistency of the welding quality is improved, and the overall strength and sealing performance of the pipeline are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline construction equipment, more particularly, the present application relates to a tunnel pipeline construction equipment and a tunnel pipeline construction method. BACKGROUND

[0002] Long-distance pipeline engineering refers to the pipeline system engineering construction and operation for transporting fluid materials such as oil and natural gas over a long distance, large volume and continuous stability. Due to the complex terrain and large undulating topography of mountainous areas, ground laying is difficult, so in long-distance pipeline engineering construction, mountain tunnels become necessary passages, and the pipeline needs to be laid in the tunnel to avoid complex terrain and geological disasters and ensure the stability of liquid transportation. In order to ensure the sealing and continuity of the pipeline, and to adapt to the tunnel space geology and changes, facilitate subsequent maintenance and replacement, the pipelines of different sections need to be transported into the tunnel for welding. Long-distance pipeline tunnels have various forms, which can be mainly divided into straight, curved and broken line types.

[0003] In the prior art, first, a fixed frame is laid in the tunnel, and then the pipeline is installed on the fixed frame, so that the pipeline is isolated from the bottom of the tunnel to provide a moving space for the pipeline to expand and contract with heat, and also to avoid corrosion of the pipeline due to moisture and immersion of the pipeline in accumulated water. When the pipelines of different sections are all installed in the tunnel, a pipeline construction equipment is used to weld the connection between different pipelines. In order to facilitate the transfer of the construction equipment in the tunnel, a moving part is installed on the construction equipment, which can drive the construction equipment to move along the inner wall of the tunnel.

[0004] However, in order to adapt to the complex terrain and geological conditions of mountainous areas, avoid geological defect areas, and optimize the layout of water and oil transportation lines, the long-distance pipeline tunnel has a curved section, and the pipeline needs to be welded in the curved section of the tunnel. The existing pipeline construction equipment can only pass through straight tunnels and cannot automatically turn in curved tunnels, which relies heavily on manual operation, resulting in reduced construction efficiency. In addition, due to the change of welding position and angle of the pipeline in the curved section of the tunnel, manual welding cannot guarantee the consistency of welding quality, affecting the overall strength and sealing of the pipeline. SUMMARY

[0005] The tunnel pipeline construction equipment and the tunnel pipeline construction method provided by the present application solve the problem that the existing tunnel pipeline construction equipment can only pass through straight tunnels and cannot automatically turn in curved tunnels, which relies heavily on manual operation, resulting in reduced construction efficiency. In addition, due to the change of welding position and angle of the pipeline in the curved section of the tunnel, manual welding cannot guarantee the consistency of welding quality, affecting the overall strength and sealing of the pipeline.

[0006] To achieve the above object, the present application provides the following technical scheme: a tunnel inner pipeline construction equipment, comprising two groups of walking mechanisms, the walking mechanism comprises a support frame, a roller is rotatably arranged on the support frame, the roller is used for contacting with the inner wall of the tunnel to limit the position of the support frame in the tunnel, the roller moves the walking mechanism in the tunnel by rolling on the inner wall of the tunnel;

[0007] A bending mechanism is arranged between the two walking mechanisms, the bending mechanism comprises a rotating seat, the rotating seat is fixedly arranged with one of the two support frames, and the rotating seat is rotatably arranged with the other support frame, and the rotating seat changes the angle between the two support frames by rotating;

[0008] A winding mechanism is arranged on the walking mechanism, the winding mechanism comprises a fixed seat, a C-shaped ring is arranged on the fixed seat, a pipeline workpiece is located in the C-shaped ring, the C-shaped ring is concentrically arranged with the pipeline workpiece, a welding gun is arranged on the C-shaped ring, and the output end of the welding gun is arranged towards the pipeline workpiece; when welding, the welding gun is turned on, and the welding gun is driven to make circular motion along the outer surface of the pipeline workpiece to complete welding.

[0009] In a preferred embodiment, the winding mechanism further comprises a plurality of transmission wheels, the fixed seat is fixedly arranged on the support frame, the transmission wheels are rotatably arranged on the fixed seat, the same transmission belt is drivingly connected to the plurality of transmission wheels, a plurality of guide wheels are rotatably arranged on the fixed seat, the C-shaped ring is rollingly arranged with the guide wheels, and the transmission belt is drivingly connected with the C-shaped ring.

[0010] In a preferred embodiment, a linear actuator one is fixedly arranged on the C-shaped ring, the welding gun is arranged on the output end of the linear actuator one, and the movement of the output end of the linear actuator one is used for adjusting the distance between the output end of the welding gun and the pipeline workpiece.

[0011] In a preferred embodiment, a spacing adjustment mechanism is arranged on the output end of the linear actuator one, the spacing adjustment mechanism comprises a limiting seat fixedly arranged on the output end of the linear actuator one, a adjusting seat is slidingly arranged in the limiting seat, a fixed rod is fixedly arranged on the bottom of the adjusting seat, the bottom end of the fixed rod is used for contacting with the surface of the pipeline workpiece, the welding gun is fixedly arranged on the adjusting seat, and an elastic member is fixedly arranged between the limiting seat and the adjusting seat.

[0012] In a preferred embodiment, the walking mechanism comprises a rotating rod one, the rotating rod one is rotatably arranged on the support frame, the roller is rotatably arranged on the rotating rod one, a moving seat is slidingly arranged on the support frame, an auxiliary seat is hingedly arranged on the moving seat, and the auxiliary seat is hingedly arranged with the rotating rod one.

[0013] In a preferred embodiment, a threaded rod is rotatably arranged on the support frame, the moving seat is threadedly connected with the threaded rod, and the position of the moving seat on the support frame is adjusted by rotating the threaded rod.

[0014] In a preferred implementation, the bending mechanism further comprises a gear one, a connecting shaft is fixedly arranged on the rotating base, the gear one is fixedly arranged on the connecting shaft, the connecting shaft is rotatably arranged between the support frame, the support frame is rotatably arranged with a gear two, the gear one is engaged with the gear two.

[0015] In a preferred implementation, the outer surface of the transmission belt is provided with anti-skid protrusions, which are used to contact the outer side of the C-shaped ring to increase the friction between the transmission belt and the C-shaped ring.

[0016] In a preferred implementation, the rotating rod one is fixedly arranged with a rotating driver one, the output end of the rotating driver one is fixedly arranged with a roller, and the rotation of the output end of the rotating driver one is used to drive the roller to rotate.

[0017] A construction method of a tunnel pipeline construction equipment, comprising the following steps:

[0018] Step one: move the walking mechanism into the tunnel, the pipeline workpiece is located in the support frame, the roller is tightly attached to the inner wall of the tunnel, then the rotating driver one is started, the rotation of the output end of the rotating driver one drives the roller to rotate, and the rotation of the roller drives the support frame to move along the inner wall of the tunnel;

[0019] Step two: when the tunnel has a curve, the gear one is engaged with the gear two to drive the rotating base to rotate between the support frames, so that one of the two support frames enters the turning of the tunnel first, and the position of the support frame in the tunnel is adjusted as the support frame continues to move;

[0020] Step three: start the linear driver one, and adjust the distance between the output end of the linear driver one and the pipeline workpiece;

[0021] Step four: start the welding gun, then make the C-shaped ring move circumferentially along the pipeline workpiece, and complete the welding between the two pipeline workpieces after the welding gun rotates one circle around the pipeline workpiece.

[0022] The beneficial effects of the present application are:

[0023] 1、The walking mechanism is arranged, and the segmented walking mechanism can automatically pass through the curved tunnel, thereby reducing the workload of the workers, and in the curved tunnel, the welding gun can automatically weld the pipeline, the distance between the output end of the welding gun and the pipeline is always the same during welding, the welding position and angle of the pipeline do not change, the consistency of the welding quality is improved, and the overall strength and sealing performance of the pipeline are improved.

[0024] 2、The present application through the setting interval adjusting mechanism, for welding elliptical pipe workpiece, welding torch around elliptical pipe workpiece rotation a week, through the fixed rod and the surface of the elliptical pipe workpiece contact adjustment welding torch position, make welding torch output end and the distance between the elliptical pipe workpiece is always the same, further improve the welding quality of welding elliptical pipe workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the schematic diagram of the three-dimensional structure of the present application.

[0026] Figure 2 It is the schematic diagram of the three-dimensional structure of the present application.

[0027] Figure 3 It is the schematic diagram of the three-dimensional structure of the C-shaped ring of the present application.

[0028] Figure 4 It is the schematic diagram of the structure of the main view of the rotating seat of the present application.

[0029] Figure 5 It is the schematic diagram of the moving track of the support frame in the bending tunnel.

[0030] Figure 6 It is the schematic diagram of the structure of the main view of the C-shaped ring of the present application.

[0031] Figure 7 It is the schematic diagram of the structure of the main view of the elastic member of the present application.

[0032] Figure 8 It is the schematic diagram of the moving track of the fixed rod along the pipe workpiece of the present application.

[0033] Figure 9 It is the schematic diagram of the process of the tunnel pipe construction method of the present application.

[0034] The figure mark is: 1, walking mechanism;11, support frame;12, rotating rod one;13, threaded rod;14, moving seat;15, roller;2, bending mechanism;21, rotating seat;22, gear one;23, gear two;3, winding mechanism;31, fixed seat;32, transmission wheel;33, transmission belt;34, C-shaped ring;35, straight line driver one;4, welding torch;5, interval adjusting mechanism;51, limiting seat;52, adjusting seat;53, fixed rod;54, elastic member;6, pipe workpiece. DETAILED DESCRIPTION

[0035] The following further describes the present application in conjunction with the drawings, it is necessary to point out here that the following detailed description is only used to further illustrate the present application, and cannot be understood as limiting the scope of protection of the present application, the skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0036] Referring to the drawings Figures 1 to 6 The tunnel inner pipe construction equipment comprises two groups of walking mechanisms 1, the walking mechanism 1 comprises a support frame 11, a roller 15 is rotationally arranged on the support frame 11, the roller 15 is used for contacting with the inner wall of the tunnel to limit the position of the support frame 11 in the tunnel, and the roller 15 moves the walking mechanism 1 in the tunnel by rolling on the inner wall of the tunnel.

[0037] A bending mechanism 2 is arranged between the two walking mechanisms 1, the bending mechanism 2 comprises a rotating seat 21, the rotating seat 21 is fixedly arranged with one of the two support frames 11, the rotating seat 21 is rotationally arranged with the other support frame 11, and the rotating seat 21 changes the angle between the two support frames 11 by rotating, so that the support frame 11 can automatically enter the curved part of the tunnel.

[0038] The walking mechanism 1 is provided with a winding mechanism 3, the winding mechanism 3 comprises a fixed seat 31, a C-shaped ring 34 is arranged on the fixed seat 31, the pipe workpiece 6 is located in the C-shaped ring 34, the C-shaped ring 34 is concentrically arranged with the pipe workpiece 6, a welding gun 4 is arranged on the C-shaped ring 34, and the output end of the welding gun 4 is arranged towards the pipe workpiece 6. When welding, the welding gun 4 is turned on, and the welding gun 4 is driven to make circumferential motion along the outer surface of the pipe workpiece 6 to complete welding.

[0039] The walking mechanism 1 comprises a rotating rod one 12, the rotating rod one 12 is rotationally arranged on the support frame 11, the roller 15 is rotationally arranged on the rotating rod one 12, a moving seat 14 is slidingly arranged on the support frame 11, an auxiliary seat is hingedly arranged on the moving seat 14, and the auxiliary seat is hingedly arranged with the rotating rod one 12. A threaded rod 13 is rotationally arranged on the support frame 11, the moving seat 14 is threadedly connected with the threaded rod 13, and the threaded rod 13 adjusts the position of the moving seat 14 on the support frame 11 by rotating. A rotating driver one is fixedly arranged on the rotating rod one 12, the output end of the rotating driver one is fixedly arranged with the roller 15, and the rotation of the output end of the rotating driver one is used for driving the roller 15 to rotate.

[0040] The bending mechanism 2 further comprises a gear one 22, a connecting shaft is fixedly arranged on the rotating seat 21, the gear one 22 is fixedly arranged on the connecting shaft, the connecting shaft is rotationally arranged between the support frame 11, a gear two 23 is rotationally arranged on the support frame 11, and the gear one 22 is engaged with the gear two 23.

[0041] It should be noted that the support frame 11 and other support members are made of lightweight metal, which not only facilitates the movement of the support frame 11 into the tunnel, reduces the difficulty of transporting the support frame 11, but also reduces the burden of the rotating seat 21. The connection relationship between the rotating seat 21 and the support frame 11 in the figure is only a reference, and the size of the rotating seat 21 changes according to the size of the support frame 11, that is, the rotation of the rotating seat 21 can stably drive the support frame 11 to move. If the size of the support frame 11 is larger, multiple rotating seats 21 can be provided. When multiple rotating seats 21 are provided, the position between the end of the rotating seat 21 and the front support frame 11 needs to be considered, or when multiple rotating seats 21 are provided, the support frame 11 in the two walking mechanisms 1 is rotatably arranged with the rotating seat 21. The rotating seat 21 is stressed to support the support frame 11, and the optimized support scheme of the rotating seat 21 is mature prior art and will not be described in detail.

[0042] It should also be noted that the rotating driver is provided as a motor, and the output shaft of the motor is fixedly provided with the roller 15. Multiple rollers 15 are rotatably arranged on each rotating rod 12, and the multiple rollers 15 on the corresponding rotating rod 12 are horizontally arranged, that is, the multiple rollers 15 on the rotating rod 12 are arranged. When the roller 15 contacts the inner wall of the tunnel, the roller 15 can increase the force of the support frame 11 in the horizontal direction of the inner wall of the tunnel. The support frame 11 is also fixedly provided with a hydraulic cylinder, and the output end of the hydraulic cylinder is fixedly provided with a positioning seat. After the roller 15 contacts the inner wall of the tunnel, the hydraulic cylinder is started, and the output end of the hydraulic cylinder drives the positioning seat to contact the inner wall of the tunnel. The positioning seat is also used to increase the force of the support frame 11 in the horizontal direction of the inner wall of the tunnel, so as to avoid the support frame 11 from tilting in the tunnel. The support frame 11 is also fixedly provided with a motor, and the output shaft of the motor is fixedly provided with the gear two 23. The gear two 23 is driven to rotate by the rotation of the output shaft of the motor.

[0043] Further, referring to Figure 5 Since the support frame 11 is provided with two groups, the support frame 11 moves to the right in the tunnel, that is, the side support frame 11 advancing along the length direction of the tunnel is the front side, and the other support frame 11 is the rear side. The pipeline workpiece 6 is a workpiece that needs to be laid in the tunnel. After multiple pipeline workpieces 6 are moved into the tunnel, the pipeline workpieces 6 are assembled together, and then the contact parts of different pipeline workpieces 6 are welded to form a complete pipeline. The fixed frame is installed in the tunnel, and the pipeline workpiece 6 is installed on the fixed frame.

[0044] The implementation scene is specifically: after the pipeline workpiece 6 is laid in the tunnel, the walking mechanism 1 is moved into the tunnel, the rotation of the motor output shaft drives the threaded rod 13 to rotate, the rotation of the threaded rod 13 drives the moving seat 14 to move, the movement of the moving seat 14 drives the rotating rod 12 to rotate, the rotation of the rotating rod 12 adjusts the distance between the rollers 15 and the support frame 11, that is, the rollers 15 are expanded outside the support frame 11, at this time, under the contact limiting action between the multiple rollers 15 and the inner wall of the tunnel, the support frame 11 is stably installed in the tunnel, and the pipeline workpiece 6 is located at the middle of the support frame 11; when the support frame 11 is located in the linear tunnel, the rotating driver one is started, the rotation of the output shaft of the rotating driver one drives the rollers 15 to rotate, the rollers 15 rollingly contact the inner wall of the tunnel to achieve the effect that the support frame 11 moves along the inner wall of the tunnel in the linear tunnel; after the welding gun 4 moves to the specified position, the contact part between the two pipeline workpieces 6 is located below the output end of the welding gun 4, and the welding gun 4 moves along the pipeline workpiece 6 to complete the welding between the two adjacent pipeline workpieces 6 after one round. Figure 5 When the pipeline workpiece 6 located in the curved tunnel needs to be welded, the support frame 11 needs to be moved to the curved part in the tunnel, first, the motor on the front support frame 11 is started to drive the threaded rod 13 to rotate, that is, the rollers 15 on the front support frame 11 are driven to shrink, and the positioning between the front support frame 11 and the inner wall of the tunnel is released, at this time, the rotating seat 21 is used to support the front support frame 11, then the motor is started to drive the gear two 23 to rotate, the gear two 23 meshes with the gear one 22 to drive the rotating seat 21 to rotate, thereby adjusting the angle between the rotating seat 21 and the support frame 11 located at the rear side, the support frame 11 located at the front side is fixedly arranged on the rotating seat 21, and the rotating seat 21 is driven to rotate when the rotating seat 21 rotates, thereby driving the support frame 11 located at the front side to rotate, the multiple rollers 15 on the rotating rod one 12 can prevent the support frame 11 from tilting in the tunnel, the support frame 11 located at the rear side continuously moves, so that the support frame 11 located at the front side moves into the curved tunnel, after the support frame 11 located at the front side is completely located in the curved tunnel, the threaded rod 13 is driven to rotate, so that the rollers 15 on the front support frame 11 are expanded to contact the inner wall of the curved tunnel, the hydraulic cylinder on the front support frame 11 is started to make the positioning seat contact the inner wall of the curved tunnel, so that the support frame 11 located at the front side is fixed in the tunnel, the welding gun 4 is used to rotate one round around the pipeline workpiece 6 to weld the pipeline workpiece 6 in the curved tunnel, so that the distance between the welding gun 4 and the pipeline workpiece 6 is always the same, and the welding quality is ensured, and after the welding is completed, the rollers 15 on the support frame 11 located at the rear side are shrunk to release the positioning between the rollers 15 and the inner wall of the linear tunnel, so that the support frame 11 located at the front side continuously moves along the inner wall of the curved tunnel, then the angle of the support frame 11 located at the rear side is adjusted through the meshing of the gear one 22 and the gear two 23, and in this way, the two walking mechanisms 1 can automatically pass through the curved tunnel.

[0045] Compared with the prior art, the design of the segmented walking mechanism 1 can enable the walking mechanism 1 to automatically pass through the curved tunnel, reduce the workload of the workers, and enable the welding gun 4 to automatically weld the pipeline in the curved tunnel. The distance between the output end of the welding gun and the pipeline can be ensured to be always the same during welding, the welding position and angle of the pipeline do not change, the consistency of the welding quality is improved, and the overall strength and sealing performance of the pipeline are improved.

[0046] With reference to the drawings accompanying the specification Figures 2 to 6 In order to be able to drive the welding gun 4 to stably rotate along the outer side of the pipeline workpiece 6, thereby improving the stability of welding, specifically, the rotating mechanism 3 further comprises a plurality of transmission wheels 32, a fixed seat 31 is fixedly arranged on the support frame 11, the transmission wheels 32 are rotationally arranged on the fixed seat 31, the same transmission belt 33 is drivingly connected to the plurality of transmission wheels 32, a plurality of guide wheels are further rotationally arranged on the fixed seat 31, a C-shaped ring 34 is rollingly arranged with the guide wheels, and the transmission belt 33 is drivingly connected with the C-shaped ring 34. A linear actuator I 35 is fixedly arranged on the C-shaped ring 34, the welding gun 4 is arranged on the output end of the linear actuator I 35, and the movement of the output end of the linear actuator I 35 is used to adjust the distance between the output end of the welding gun 4 and the pipeline workpiece 6. The outer surface of the transmission belt 33 is provided with anti-skid protrusions, which are used to contact the outer side of the C-shaped ring 34 to increase the friction between the transmission belt 33 and the C-shaped ring 34.

[0047] It should be noted that a motor is fixedly arranged on the fixed seat 31, and the output shaft of the motor is fixedly arranged with the fixed seat 31. The plurality of transmission wheels 32 and the guide wheels are circumferentially distributed, and the C-shaped ring 34 is located between the plurality of transmission wheels 32 and the guide wheels. The linear actuator I 35 is arranged as a linear motor, and the linear motor is fixedly arranged on the C-shaped ring 34.

[0048] It should be further noted that the welding gun 4 is arranged on the linear actuator I 35, and the output end of the welding gun 4 is always arranged towards the center of the pipeline workpiece 6.

[0049] In this embodiment, the motor is started, the rotation of the output shaft of the motor drives the transmission wheel 32 to rotate, the transmission wheel 32 drives the transmission belt 33, the transmission belt 33 can drive the plurality of transmission wheels 32 to synchronously rotate, and the transmission belt 33 is in contact with the outer side of the C-shaped ring 34 during the transmission process to drive the C-shaped ring 34 to rotate. The C-shaped ring 34 drives the welding gun 4 to make a circumferential motion around the pipeline workpiece 6 during the rotation process, and the C-shaped ring 34 can ensure that the distance between the pipeline workpiece 6 and the output end of the welding gun 4 is always the same, thereby ensuring the welding quality.

[0050] With reference to the drawings accompanying the specification Figure 7 With Figure 8, in long pipeline engineering, the pipeline in the tunnel is used to transport fluid materials such as oil and natural gas, in order to reduce the resistance of liquid flow and gas flow, the pipeline workpiece 6 needs to have a certain ellipticity, that is, the pipeline workpiece 6 is set as an elliptical pipeline, when the fluid flow direction is consistent with the long axis direction of the elliptical pipeline workpiece 6, the long axis direction of the elliptical pipeline workpiece 6 provides a larger cross-sectional area, thereby reducing the flow rate of the fluid, reducing the friction between the fluid and the pipeline wall of the elliptical pipeline workpiece 6, thereby reducing the resistance along the way, at the same time, the short axis direction of the elliptical pipeline workpiece 6 is in the form of a circular arc, which can more naturally adapt to the curved path when the pipeline workpiece 6 is bent, reducing the centrifugal force and impact force on the fluid at the bending part, thereby reducing the local resistance, however, when welding the elliptical pipeline workpiece 6, due to the long axis and short axis of the elliptical shape, the output end of the welding gun 4 makes a circular motion around the welding gun 4, which causes the distance between the welding gun 4 and the surface of the elliptical pipeline workpiece 6 to be different, resulting in uneven welding heat input, when the distance is short, local overheating is easy to produce weld edge biting, burning and stress concentration, reducing the weld strength and causing cracks; when the distance is far, the heat is insufficient to cause poor fusion of the weld, poor forming, and inclusion of un-melted defects, affecting the welding quality and performance, in order to avoid the above situation, specifically, the output end of the linear actuator one 35 is provided with a spacing adjusting mechanism 5, the spacing adjusting mechanism 5 includes a limiting seat 51, the limiting seat 51 is fixedly arranged on the output end of the linear actuator one 35, a adjusting seat 52 is slidably arranged in the limiting seat 51, a fixed rod 53 is fixedly arranged at the bottom of the adjusting seat 52, the bottom end of the fixed rod 53 is used to contact the surface of the pipeline workpiece 6, the welding gun 4 is fixedly arranged on the adjusting seat 52, and a elastic member 54 is fixedly arranged between the limiting seat 51 and the adjusting seat 52.

[0051] It should be noted that the elastic member 54 is set as a spring, the top end of the spring is fixedly arranged with the limiting seat 51, and the bottom end of the spring is fixedly arranged with the adjusting seat 52. A connecting seat is also fixedly arranged in the limiting seat 51, the connecting seat is located below the adjusting seat 52, and the connecting seat is used to support the adjusting seat 52 at the bottom of the adjusting seat 52.

[0052] It is also needed to be explained that the linear driver one 35 is started, the moving driving limit seat 51 of the output end of the linear driver one 35 is moved, the bottom end of the fixed rod 53 is contacted with the elliptical pipe workpiece 6, the elastic member 54 is compressed, the C-shaped ring 34 is driven to make the circumferential motion along the elliptical pipe workpiece 6, the fixed rod 53 is always contacted with the surface of the elliptical pipe workpiece 6, when the contact position between the fixed rod 53 and the elliptical pipe workpiece 6 is changed from the minor axis to the major axis, the outer surface of the elliptical pipe workpiece 6 will extrude the fixed rod 53 to make the adjusting seat 52 slide in the limit seat 51, the movement of the adjusting seat 52 changes the distance of the output end of the welding gun 4, so that the distance between the output end of the welding gun 4 and the surface of the elliptical pipe workpiece 6 is adjusted, when the welding gun 4 makes the circumferential motion around the pipe workpiece 6, the distance between the output end of the welding gun 4 and the elliptical pipe workpiece 6 is always the same, when the contact position between the fixed rod 53 and the elliptical pipe workpiece 6 is changed from the major axis to the minor axis, the adjusting seat 52 is driven to move under the action of the elasticity of the elastic member 54, and then the distance between the output end of the welding gun 4 and the elliptical pipe workpiece 6 is always the same.

[0053] The drawings for illustrating the present application are attached in the specification Figure 9 A tunnel pipe construction method of the tunnel pipe construction equipment, comprising the following steps:

[0054] Step one: the walking mechanism 1 is moved to the tunnel, the pipe workpiece 6 is located in the support frame 11, the roller 15 is closely contacted with the inner wall of the tunnel, then the rotary driver one is started, the rotary driving roller 15 of the output end of the rotary driver one is rotated, the roller 15 rotates to drive the support frame 11 to move along the inner wall of the tunnel;

[0055] Step two: when the tunnel has a curve, the gear one 22 is engaged with the gear two 23 to drive the rotary seat 21 and the support frame 11 to rotate, so that one of the two support frames 11 enters the inside of the curve of the tunnel first, and then the position of the support frame 11 in the tunnel is adjusted with the continuous movement of the support frame 11;

[0056] Step three: the linear driver one 35 is started, and the distance between the output end of the linear driver one 35 and the pipe workpiece 6 is adjusted;

[0057] Step four: the welding gun 4 is started, then the C-shaped ring 34 makes the circumferential motion along the pipe workpiece 6, and the welding between the two pipe workpieces 6 is completed when the welding gun 4 rotates around the pipe workpiece 6 for one circle.

[0058] The above embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that, for ordinary skilled in the art, several deformations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A tunneling pipe installation apparatus characterized by comprising: Including two groups of walking mechanism (1), the walking mechanism (1) includes support frame (11), the support frame (11) is provided with the roller (15) on rotation, the roller (15) is used for with the inner wall of the tunnel contact restriction support frame (11) in the position in the tunnel, the roller (15) is moved by rolling on the tunnel inner wall and makes the walking mechanism (1) in the tunnel move; Two the walking mechanism (1) between the setting is provided with bending mechanism (2), the bending mechanism (2) includes rotating seat (21), the rotating seat (21) with one of two support frames (11) fixedly arranged, the rotating seat (21) is rotatably arranged with another support frame (11), the rotating seat (21) changes the angle between two support frames (11) by rotating; The walking mechanism (1) is provided with winding mechanism (3), the winding mechanism (3) includes fixed seat (31), the fixed seat (31) is provided with C-shaped ring (34), pipeline workpiece (6) is located in C-shaped ring (34), the C-shaped ring (34) is concentrically arranged with pipeline workpiece (6), the C-shaped ring (34) is provided with welding torch (4), the output end of welding torch (4) is arranged towards pipeline workpiece (6), when welding, open welding torch (4), drive welding torch (4) to make circumferential motion along the outer surface of pipeline workpiece (6) to complete welding; The winding mechanism (3) further includes a plurality of transmission wheels (32), the fixed seat (31) is fixedly arranged on the support frame (11), the transmission wheel (32) is rotatably arranged on the fixed seat (31), a same transmission belt (33) is drivingly connected on a plurality of the transmission wheels (32), a plurality of guide wheels are rotatably arranged on the fixed seat (31), the C-shaped ring (34) is rotatably arranged with the guide wheels, the transmission belt (33) is drivingly connected with the C-shaped ring (34); The C-shaped ring (34) is fixedly provided with linear actuator one (35), the welding torch (4) is arranged on the output end of linear actuator one (35), the movement of the output end of linear actuator one (35) is used for adjusting the distance between the output end of welding torch (4) and pipeline workpiece (6); The output end of the linear actuator one (35) is provided with a spacing adjustment mechanism (5), the spacing adjustment mechanism (5) includes a limiting seat (51), the limiting seat (51) is fixedly arranged on the output end of the linear actuator one (35), the limiting seat (51) is slidably arranged with an adjusting seat (52), the bottom of the adjusting seat (52) is fixedly provided with a fixed rod (53), the bottom end of the fixed rod (53) is used for contacting with the surface of the pipeline workpiece (6), the welding torch (4) is fixedly arranged on the adjusting seat (52), the limiting seat (51) and the adjusting seat (52) are fixedly provided with an elastic member (54).

2. A tunnelled pipe installation apparatus according to claim 1, characterised in that: The walking mechanism (1) comprises a rotating rod one (12), the rotating rod one (12) is rotationally arranged on the support frame (11), the roller (15) is rotationally arranged on the rotating rod one (12), the support frame (11) is slidably provided with a moving seat (14), the moving seat (14) is hingedly provided with an auxiliary seat, and the auxiliary seat is hingedly arranged with the rotating rod one (12).

3. A tunnelled pipe installation apparatus according to claim 2, wherein: The support frame (11) is rotationally provided with a threaded rod (13), the moving seat (14) is threadedly connected with the threaded rod (13), and the threaded rod (13) adjusts the position of the moving seat (14) on the support frame (11) by rotation.

4. A tunnelled pipe installation apparatus according to claim 3, wherein: The bending mechanism (2) further comprises a gear one (22), the rotating seat (21) is fixedly provided with a connecting shaft, the gear one (22) is fixedly arranged on the connecting shaft, the connecting shaft is rotationally arranged between the support frame (11), and the support frame (11) is rotationally provided with a gear two (23), the gear one (22) is engaged with the gear two (23).

5. A tunnelled pipe installation apparatus as claimed in claim 4, wherein: The outer surface of the transmission belt (33) is provided with anti-skid protrusions, the anti-skid protrusions are used for contacting the outer side of the C-shaped ring (34) to increase the friction between the transmission belt (33) and the C-shaped ring (34).

6. A tunnelled pipe installation apparatus as claimed in claim 5, wherein: The rotating rod one (12) is fixedly provided with a rotating driver one, the output end of the rotating driver one is fixedly arranged with the roller (15), and the rotation of the output end of the rotating driver one is used for driving the roller (15) to rotate.

7. A method of construction of a tunnelled pipe installation according to claim 6, characterised in that, The following steps are included: Step one: the walking mechanism (1) is moved into the tunnel, the pipeline workpiece (6) is located in the support frame (11), the roller (15) is tightly attached to the inner wall of the tunnel, then the rotating driver one is started, the rotation of the output end of the rotating driver one drives the roller (15) to rotate, and the rotation of the roller (15) drives the support frame (11) to move along the inner wall of the tunnel; Step two: when the tunnel has a curve, the gear one (22) is engaged with the gear two (23) to drive the rotating seat (21) to rotate between the support frames (11), so that one of the two support frames (11) enters the turning of the tunnel first, and the position of the support frame (11) in the tunnel is adjusted with the continuous movement of the support frame (11); Step three: the linear driver one (35) is started, and the distance between the output end of the linear driver one (35) and the pipeline workpiece (6) is adjusted; Step four: the welding gun (4) is started, then the C-shaped ring (34) is made to move in a circle along the pipeline workpiece (6), and the welding of the two pipeline workpieces (6) is completed after the welding gun (4) rotates one circle around the pipeline workpiece (6).

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