Propelling device and pose adjusting method of rotatable trapezoidal pipe curtain pipe jacking machine

Abstract

The present application belongs to the technical field of trapezoidal pipe jacking machine, and discloses a kind of propelling device and pose adjustment method of rotatable trapezoidal pipe curtain pipe jacking machine, the propelling device includes: base;Rotary seat;Channel;Origin platform is fixed in origin well, for supporting base, and the height and horizontal position of the base satisfy that the central axis of each pipe jacking machine is consistent with the central axis of corresponding preset trapezoidal pipe installation path;Driving mechanism, for driving rotary seat to rotate forward / reverse to drive pipe jacking machine to rotate to be consistent with preset trapezoidal pipe installation pose.The present application supports base by origin platform, and makes the central axis of pipe jacking machine consistent with the central axis of preset trapezoidal pipe installation path, then utilizes driving mechanism to drive rotary seat to rotate forward / reverse, to drive pipe jacking machine to rotate to be consistent with preset trapezoidal pipe installation pose, to ensure that pipe jacking machine subsequent accurate excavation, and pipe jacking machine adjustable angle range is larger, and overall structure stability is good.

Description

Technical Field

[0001] This invention belongs to the technical field of trapezoidal pipe jacking machines, and specifically relates to a propulsion device and posture adjustment method for a rotatable trapezoidal pipe curtain jacking machine. Background Technology

[0002] In traditional pipe jacking construction, circular or square steel pipe structures are commonly used, and the corresponding excavation faces are also circular or rectangular. The novel U-BIT bundled pipe jacking method, combining pipe jacking with tensioning, offers diverse pipe jacking combinations. To adapt to horseshoe-shaped excavation pipe jacking sections, a special pipe jacking machine for trapezoidal sections has been developed. In horseshoe-shaped pipe jacking, adjacent trapezoidal pipe sections have different installation angles, requiring the pipe jacking machine to adjust its excavation posture accordingly. However, conventional pipe jacking machine launching and propulsion devices typically consist of a launching base supporting the pipe jacking machine or steel pipe sections, a propulsion cylinder assembly, and a rear support structure. The excavation angle of the pipe jacking machine is usually changed by adding wedge-shaped blocks of different angles to adjust the launching base angle. This method has low angle adjustment accuracy, limited adjustable angles, and poor structural stability. Therefore, we propose a propulsion device and posture adjustment method for a rotatable trapezoidal pipe jacking machine to solve these problems. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a propulsion device and posture adjustment method for a rotatable trapezoidal tube curtain jacking machine, which solves the problem of low angle adjustment accuracy of the jacking machine.

[0004] This invention is achieved through the following solution: a propulsion device for a rotatable trapezoidal tube curtain jacking machine, comprising: The base has an arc-shaped groove at its upper end; A rotating seat is rotatably connected to an arc-shaped groove, and the rotating seat rotates about the central axis of the arc-shaped groove. A channel is formed on a rotating base and extends along the direction of the rotation axis. The pipe jacking machine can be slidably connected to the front of the channel along the extension direction of the channel. The central axis of the pipe jacking machine is consistent with the rotation axis of the rotating base. The launching platform, fixed inside the launching shaft, is used to support the base and ensure that the height and horizontal position of the base are consistent with the central axis of each pipe jacking machine and the central axis of the corresponding preset trapezoidal pipe jacking installation path. The drive mechanism is used to drive the rotating seat to rotate forward / reverse so that the pipe jacking machine rotates to match the preset trapezoidal pipe jacking installation position.

[0005] A further improvement of the propulsion device of the rotatable trapezoidal pipe curtain jacking machine of the present invention is that it also includes a guide anti-rotation structure, which is fixed at the starting well to prevent the trapezoidal pipe from changing its position during jacking.

[0006] A further improvement of the propulsion device of the rotatable trapezoidal pipe curtain jacking machine of the present invention is that the guide anti-rotation structure includes a frame and multiple limiting members. The frame is fixed at the starting well and an opening for the trapezoidal jacking pipe to pass through is formed inside the frame. The multiple limiting members are distributed on the inner periphery of the opening and abut against the outside of the trapezoidal jacking pipe to restrict the position of the jacked trapezoidal jacking pipe.

[0007] A further improvement of the propulsion device of the rotatable trapezoidal tube curtain jacking machine of the present invention is that each of the limiting members can be extended and retracted in the direction toward the inside of the opening, so as to restrict the trapezoidal jacking pipe in different positions.

[0008] A further improvement of the propulsion device of the rotatable trapezoidal tube curtain jacking machine of the present invention is that the cross-section of the rotating seat is arc-shaped and the rotation angle of the rotating seat is within the range of -45° to +45°; the jacking machine has four installation positions in which each side serves as the bottom edge and slides into the channel.

[0009] A further improvement of the propulsion device of the rotatable trapezoidal pipe curtain jacking machine of the present invention is that the propulsion device further includes a support guide for guiding the jacking machine as it slides along the channel, the support guide being able to change the support guide form according to the four installation positions of the jacking machine.

[0010] A further improvement of the propulsion device of the rotatable trapezoidal pipe curtain jacking machine of the present invention is that the supporting guide includes at least one flat support guide that can be adapted to the horizontal side of the jacking machine, at least one first inclined support guide that can be adapted to one wedge-shaped side of the jacking machine, and at least one second inclined support guide that can be adapted to the other wedge-shaped side of the jacking machine. One end of the flat support guide, the first inclined support guide, and the second inclined support guide can be detachably connected to the rotating seat, and the other end extends into the channel and forms a guide channel for constraining the position of the jacking machine when it slides.

[0011] A further improvement of the propulsion device of the rotatable trapezoidal tube curtain roofing machine of the present invention is that the driving mechanism includes a driving motor, a gear and an arc-shaped rack. The arc-shaped rack is fixed on the rotating base and the central axis of the arc-shaped rack is consistent with the rotation axis of the rotating base. The driving motor is fixed on the base and the gear is fixed on the output shaft of the driving motor and meshes with the arc-shaped rack.

[0012] A further improvement of the propulsion device of the rotatable trapezoidal tube curtain jacking machine of the present invention is that an angle ruler with the central axis aligned with the central axis of the rotating seat is fixed on the base, and an indicator needle for indicating the angle in conjunction with the angle ruler is connected to the rotating seat.

[0013] A method for adjusting the position and orientation of a rotatable trapezoidal tube curtain roofing machine, employing the propulsion device described above, includes the following steps: S1. Use the starting platform to support the base and make the central axis of the pipe jacking machine consistent with the central axis of the preset trapezoidal pipe jacking installation path; S2. Use the drive mechanism to drive the rotating seat to rotate forward / reverse, so as to rotate the pipe jacking machine to match the preset trapezoidal pipe jacking installation position.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention uses a starting platform to support the base and aligns the central axis of the pipe jacking machine with the central axis of the preset trapezoidal pipe jacking installation path. Then, a drive mechanism is used to drive the rotating seat to rotate forward / reverse, thereby rotating the pipe jacking machine to match the preset trapezoidal pipe jacking installation position. This ensures accurate subsequent tunneling by the pipe jacking machine, and the pipe jacking machine has a large adjustable angle range and good overall structural stability. Attached Figure Description

[0015] Figure 1 A side view of the present invention is shown.

[0016] Figure 2 A front view of the present invention is shown.

[0017] Figure 3 A schematic diagram of the position of the drive mechanism of the present invention is shown.

[0018] Figure 4 A schematic diagram of the pipe jacking machine of the present invention is shown when the horizontal side is the bottom side.

[0019] Figure 5 The present invention is shown. Figure 4 A schematic diagram of the rotating seat rotating counterclockwise.

[0020] Figure 6 The present invention is shown. Figure 4 A schematic diagram of the rotating seat rotating clockwise.

[0021] Figure 7 A schematic diagram is shown when the wedge-shaped edge of the pipe jacking machine of the present invention is the bottom edge.

[0022] Figure 8 The present invention is shown. Figure 7 A schematic diagram of the rotating seat rotating counterclockwise.

[0023] Figure 9 The present invention is shown. Figure 7 A schematic diagram of the rotating seat rotating clockwise.

[0024] Figure 10 A schematic diagram of the base structure of the present invention is shown.

[0025] Figure 11 A schematic diagram of the rotating seat structure of the present invention is shown.

[0026] Figure 12 A schematic diagram of the guide anti-rotation structure of the present invention is shown.

[0027] Figure 13 A schematic cross-sectional view of the guide anti-rotation structure of the present invention is shown.

[0028] Figure 14 A schematic diagram of the horseshoe-shaped tube curtain of the present invention is shown.

[0029] In the diagram: 1. Base; 101. Arc-shaped groove; 2. Rotating seat; 201. Channel; 202. First diagonal brace guide; 203. Flat brace guide; 204. Bottom slide rail; 205. Second diagonal brace guide; 3. Rear support structure; 4. Pushing cylinder; 5. Pipe jacking machine; 6. Jacking block; 7. Jacking ring; 8. Drive mechanism; 801. Drive motor; 802. Gear; 803. Arc-shaped rack; 9. Frame; 10. Limiting component; 1001. Movable opening; 1002. Adjusting block; 1003. Adjusting bolt; 11. Fixing bolt; 12. Through port; 13. Trapezoidal jacking pipe; 14. Horseshoe-shaped pipe curtain. Detailed Implementation

[0030] To address the issue of low angle adjustment accuracy in pipe jacking machines, this invention provides a propulsion device and posture adjustment method for a rotatable trapezoidal pipe curtain jacking machine. The following detailed description, in conjunction with the accompanying drawings, further illustrates this propulsion device and posture adjustment method for a rotatable trapezoidal pipe curtain jacking machine.

[0031] See Figures 1-14 As shown, a propulsion device for a rotatable trapezoidal tube curtain jacking machine includes: The base 1 has an arc-shaped groove 101 at its upper end; The rotating seat 2 is rotatably connected to the arc-shaped groove 101, and the rotating seat 2 rotates about the central axis of the arc-shaped groove 101. The channel 201 is provided on the rotating base 2 and is provided along the direction of the rotation axis. The pipe jacking machine 5 can be slidably connected to the front of the channel 201 along the extension direction of the channel 201. The central axis of the pipe jacking machine 5 is consistent with the rotation axis of the rotating base 2. The launching platform is fixed inside the launching shaft and is used to support the base 1 and ensure that the height and horizontal position of the base 1 are consistent with the central axis of the corresponding preset trapezoidal jacking pipe 13 installation path. The drive mechanism 8 is used to drive the rotating seat 2 to rotate forward / reverse, so as to rotate the pipe jacking machine 5 to match the preset installation position of the trapezoidal pipe jacking 13.

[0032] The starting platform supports the base 1 and aligns the central axis of the pipe jacking machine 5 with the central axis of the preset trapezoidal pipe jacking 13 installation path. Then, the drive mechanism 8 drives the rotating seat 2 to rotate forward / backward, thereby rotating the pipe jacking machine 5 to match the preset trapezoidal pipe jacking 13 installation position. This ensures accurate subsequent tunneling of the pipe jacking machine 5. The pipe jacking machine 5 has a large adjustable angle range and good overall structural stability.

[0033] Furthermore, the launching platform can be a supporting steel frame installed inside the launching shaft. This supporting steel frame can be erected according to the trapezoidal jacking pipe 13 at different installation positions, so that the central axis of the jacking machine 5 is consistent with the central axis of the preset installation path of the trapezoidal jacking pipe 13. Alternatively, a lifting mechanism (which can be a hydraulic cylinder) can be set to push the base 1 up and down to adjust its height, so as to adapt to the preset installation path of the trapezoidal jacking pipe 13 at different installation heights. A push-pull mechanism (which can be a hydraulic cylinder) can be set to push and pull the base 1 to move horizontally, so as to change its position and adapt to the preset installation path of the trapezoidal jacking pipe 13 at different positions.

[0034] The propulsion device also includes a rear support structure 3 and a propulsion cylinder 4. The rear support structure 3 is fixed to the tail end of the rotating seat 2, and the propulsion cylinder 4 is fixed on the rear support structure 3. The extension and retraction direction of the propulsion cylinder 4 is consistent with the sliding direction of the pipe jacking machine 5. The propulsion cylinder 4 is used to propel the pipe jacking machine 5 to excavate and to jack the trapezoidal pipe 13.

[0035] It also includes a guide anti-rotation structure, fixed at the starting well, to prevent the trapezoidal jacking pipe 13 from changing its position during jacking.

[0036] Among them, see Figures 12-13 As shown, the guide anti-rotation structure includes a frame 9 and multiple limiting members 10. The frame 9 is fixed at the starting well (specifically, it is installed on the water-stop box at the tunnel entrance), and the frame 9 is surrounded to form an opening 12 for the trapezoidal jacking pipe 13 to pass through. The multiple limiting members 10 are distributed on the inner periphery of the opening 12 and abut against the outside of the trapezoidal jacking pipe 13 to restrict the position of the jacked trapezoidal jacking pipe 13.

[0037] Furthermore, the number of limiting members 10 is six, and they are divided into three pairs. One pair of limiting members 10 is symmetrically arranged at the left and right ends of the opening 12, and the other two pairs of limiting members 10 are respectively arranged on both sides of the center line at the upper and lower ends of the opening 12. Each pair of limiting members 10 in the other two pairs is respectively arranged at the upper and lower ends of the opening 12. By adopting the above design, during construction, the propulsion cylinder 4 first pushes the pipe jacking machine 5 through the opening 12 for excavation. After the propulsion cylinder 4 reaches its maximum stroke, it retracts and places a trapezoidal pipe jacking 13 with the same posture as the pipe jacking machine 5 between the pipe jacking machine 5 and the propulsion cylinder 4. Multiple limiting components 10 are used to abut against the outer surface of the trapezoidal pipe jacking 13 to limit its movement. Then, the propulsion cylinder 4 is activated to push the trapezoidal pipe jacking 13 into the installation opening excavated by the pipe jacking machine 5. This design can prevent the trapezoidal pipe jacking 13 from changing its posture during the jacking process, ensuring accurate and stable pipe jacking and greatly improving the construction quality.

[0038] Furthermore, when the maximum stroke of the propulsion cylinder 4 cannot meet the jacking work, a certain number (the specific number can be set according to actual needs) of top blocks 6 can be set at the output end of the propulsion cylinder 4 to increase the propulsion stroke, and a top ring 7 is set on the foremost top block 6. The propulsion cylinder 4 pushes the top block 6 and the top ring 7 to realize the propulsion of the pipe jacking machine 5 and the trapezoidal pipe jacking 13. The bottom of the channel 201 is fixed with a bottom slide rail 204 for supporting the top block 6 and the top ring 7, and the top block 6 and the top ring 7 can slide in the channel 201 by sliding along the bottom slide rail 204.

[0039] Each limiting member 10 can be extended and retracted in the direction toward the inside of the opening 12 to restrict the trapezoidal jacking pipe 13 in different positions.

[0040] Furthermore, the limiting member 10 includes an opening 1001 on the frame 9 and an adjusting block 1002 movably disposed in the opening 1001 and used to fit closely with the trapezoidal jacking pipe 13, with a gap between the adjusting block 1002 and the inner wall of the opening 1001. The limiting member 10 also includes two driving members for extending into the movable opening 1001 and respectively abutting against the two sides of the center line of the end of the adjusting block 1002 away from the trapezoidal jacking pipe 13. The length of the driving members extending into the movable opening 1001 is adjustable. Each drive component includes two adjusting bolts 1003 and two adjusting screw holes. The two adjusting screw holes are opened on the frame 9 and connected to the through port 12. The two adjusting bolts 1003 are respectively screwed into the two adjusting screw holes. By screwing the adjusting bolts 1003 on the two drive components in each limiting component 10 to press against the adjusting block 1002 and the trapezoidal jacking pipe 13, the corresponding trapezoidal jacking pipe 13 can be pressed and limited to prevent it from changing its position during the jacking process. The adjusting blocks 1002 in the limiting members 10 located at the upper and lower ends of the opening 12 have horizontal contact surfaces with the trapezoidal jacking pipe 13, while the adjusting blocks 1002 in the limiting members 10 located at the left and right ends of the opening 12 have wedge-shaped contact surfaces with the trapezoidal jacking pipe 13. Since the existing trapezoidal jacking pipe 13 has two horizontally arranged sides and two wedge-shaped sides arranged in parallel, by having the adjusting blocks 1002 with horizontal surfaces closely contacting the trapezoidal jacking pipe 13 and the adjusting blocks 1002 with wedge-shaped surfaces closely contacting the wedge-shaped sides of the trapezoidal jacking pipe 13, the contact area between the two can be maximized, thereby limiting the trapezoidal jacking pipe 13 during the jacking process, improving the limiting effect, and achieving precise guidance.

[0041] The guide anti-rotation structure also includes a fastener group, which is used to fix all the adjusting blocks 1002 in the corresponding movable opening 1001 after the position of the trapezoidal jacking pipe 13 is adjusted. The fastener group includes multiple fasteners that correspond one-to-one with the six limiting members 10. Each fastener includes an abutment for pressing against the corresponding adjusting block 1002 and fixing it in the movable opening 1001. Further, see Figure 12 As shown, the fastener includes a fixing bolt 11 and a fixing screw hole. The fixing screw hole is opened on the frame 9 and is connected to the corresponding movable opening 1001. The fixing bolt 11 is screwed into the fixing screw hole. By tightening the fixing bolt 11, it is pressed against the corresponding adjusting block 1002 to fix the adjusting block 1002 in the corresponding movable opening 1001. Each fastener has four fixing bolts 11 and four fixing screw holes. The fixing effect of the adjusting block 1002 can be further improved by using multiple fixing bolts 11.

[0042] Among them, see Figure 3 As shown, the cross-section of the rotating seat 2 is arc-shaped, and the rotation angle of the rotating seat 2 is within the range of -45° to +45°; the pipe jacking machine 5 has four installation positions in which each side serves as the bottom edge and slides into the channel 201.

[0043] See Figure 14 As shown, since the horseshoe-shaped pipe curtain 14 is formed by multiple trapezoidal jacking pipes 13, and the installation angle of each trapezoidal jacking pipe 13 is different, the horseshoe-shaped pipe curtain 14 is divided into four installation areas, and the jacking machine 5 is set with four installation positions according to the four installation areas. The rotating seat 2 drives the jacking machine 5 in each installation position to adjust the angle within the range of -45° to +45°, so that the position of the jacking machine 5 is adapted to the installation position of each trapezoidal jacking pipe 13 in the corresponding installation area. The jacking machine 5 has four installation positions, which can achieve 360° adjustment. The adjustment range is wide and can perfectly adapt to the installation of trapezoidal jacking pipes 13 in different installation positions in the horseshoe-shaped pipe curtain 14.

[0044] The propulsion device also includes a support guide for guiding the pipe jacking machine 5 as it slides along the channel 201. The support guide can be changed to a different support guide form according to the four installation positions of the pipe jacking machine 5.

[0045] The support guide includes at least one flat support guide 203 that can be adapted to the horizontal side of the pipe jacking machine 5, at least one first inclined support guide 202 that can be adapted to one wedge-shaped side of the pipe jacking machine 5, and at least one second inclined support guide 205 that can be adapted to the other wedge-shaped side of the pipe jacking machine 5. One end of the flat support guide 203, the first inclined support guide 202 and the second inclined support guide 205 can be detachably connected to the rotating seat 2, and the other end can extend into the channel 201 and form a guide channel for constraining the position of the pipe jacking machine 5 when it slides.

[0046] By replacing the flat support guide 203 / first inclined support guide 202 / second inclined support guide 205 at the bottom and both ends of the channel 201 with those adapted to the corresponding sides of the pipe jacking machine 5, the four installation positions of the pipe jacking machine 5 can be adapted to provide stable support and precise guidance for the pipe jacking machine 5.

[0047] Furthermore, attached Figures 4-6 A schematic diagram showing the adjustment of the rotating base 2 within the range of -45° to +45° when the horizontal side of the pipe jacking machine 5 is the bottom side; see reference. Figure 4 As shown, when the rotating seat 2 is not rotating, a flat support guide 203 is installed at the bottom of the channel 201, and a first inclined support guide 202 and a second inclined support guide 205 are respectively installed at the left and right ends of the channel 201; see reference Figure 5 As shown, when the rotating seat 2 rotates counterclockwise, the second inclined brace guide 205 at its right end can be removed, leaving only the first inclined brace guide 202 at the left end. This allows the first inclined brace guide 202 at the left end to form a V-shaped support system with the flat brace guide 203, meeting the support and guidance requirements of the pipe jacking machine 5. (See also...) Figure 6 As shown, when the rotating seat 2 rotates clockwise, the first inclined brace guide 202 at its left end can be removed, leaving only the second inclined brace guide 205 at the right end, so that the second inclined brace guide 205 at the right end and the flat brace guide 203 form a V-shaped support system to meet the support and guidance requirements of the pipe jacking machine 5.

[0048] Appendix Figures 7-9 A schematic diagram showing the adjustment of the rotating seat 2 within the range of -45° to +45° when the wedge-shaped side of the pipe jacking machine 5 is the bottom edge; see reference. Figure 7 As shown, when the rotating seat 2 is not rotating, a first inclined guide 202 adapted to the wedge-shaped edge of the pipe jacking machine 5 is installed at the bottom of the channel 201, and flat guides 203 are installed at both ends of the channel 201; see reference Figure 8As shown, when the rotating seat 2 rotates counterclockwise, the flat support guide 203 at its right end can be removed, leaving only the flat support guide 203 at the left end. This allows the first inclined support guide 202 and the flat support guide 203 at the left end to form a V-shaped support system, meeting the support and guidance requirements of the pipe jacking machine 5. (See also...) Figure 9 As shown, when the rotating seat 2 rotates clockwise, the flat support guide 203 at its left end can be removed, leaving only the flat support guide 203 at the right end, so that the first inclined support guide 202 and the flat support guide 203 at the right end form a V-shaped support system, which meets the support and guidance requirements of the pipe jacking machine 5.

[0049] Furthermore, the two ends of the channel 201 are also provided with side slide rails for supporting the top block 6 and the top ring 7 and providing guidance for them, so as to provide support and guidance for the top block 6 and the top ring 7 when the rotating seat 2 rotates, so that the top block 6 and the top ring 7 can still be used normally.

[0050] The drive mechanism 8 includes a drive motor 801, a gear 802, and an arc rack 803. The arc rack 803 is fixed on the rotating seat 2, and the central axis of the arc rack 803 is consistent with the rotation axis of the rotating seat 2. The drive motor 801 is fixed on the base 1, and the gear 802 is fixed on the output shaft of the drive motor 801, and the gear 802 meshes with the arc rack 803.

[0051] In the drive mechanism 8, there are two arc-shaped racks 803, two gears 802, and two drive motors 801. The two arc-shaped racks 803 are fixed at the beginning and end of the rotating seat 2, the two drive motors 801 are fixed at the beginning and end of the base 1, and the two gears 802 are fixed on the output shafts of the two drive motors 801 and mesh with the corresponding racks.

[0052] The drive motor 801 drives the gear 802 to rotate, which in turn drives the rack to rotate, causing the rotating seat 2 to rotate, thereby changing the tunneling angle of the pipe jacking machine 5.

[0053] The base 1 is fixed with an angle ruler whose central axis is aligned with the central axis of the rotating seat 2, and the rotating seat 2 is connected with an indicator needle for indicating the angle in conjunction with the angle ruler.

[0054] By adopting the above design, a reference can be provided by using the combination of the indicator needle and the angle ruler to facilitate precise angle adjustment of the rotating seat 2.

[0055] A method for adjusting the position and orientation of a rotatable trapezoidal tube curtain jacking machine, employing the aforementioned propulsion device, includes the following steps: S1. According to the preset installation path of the trapezoidal jacking pipe 13, the starting platform supports the base 1, and the central axis of the jacking machine 5 is aligned with the central axis of the preset installation path of the trapezoidal jacking pipe 13. S2. The drive mechanism 8 drives the rotating seat 2 to rotate in both directions to adjust the tunneling angle of the pipe jacking machine 5 to match the preset installation position of the trapezoidal pipe jacking 13.

[0056] Specifically, during construction, the frame 9 is fixed at the starting well, and the opening 12 is aligned with the preset installation path of the trapezoidal jacking pipe 13. Then, the propulsion cylinder 4 pushes the jacking machine 5 through the opening 12 and excavates along the preset installation path of the trapezoidal jacking pipe 13. After the propulsion cylinder 4 reaches its maximum stroke, it retracts. The trapezoidal jacking pipe 13, with the same posture as the jacking machine 5, is placed between the jacking machine 5 and the propulsion cylinder 4. The adjusting bolts 1003 in the multiple limiting components 10 are screwed to push the adjusting block 1002 against the outer surface of the trapezoidal jacking pipe 13. The propulsion cylinder 4 is then activated to push the trapezoidal jacking pipe 13 into the installation opening excavated by the jacking machine 5.

Claims

1. A propulsion device for a rotatable trapezoidal tube curtain jacking machine, comprising: The base has an arc-shaped groove at its upper end; A rotating seat is rotatably connected to an arc-shaped groove, and the rotating seat rotates about the central axis of the arc-shaped groove. A channel is formed on a rotating base and extends along the direction of the rotation axis. The pipe jacking machine can be slidably connected to the front of the channel along the extension direction of the channel. The central axis of the pipe jacking machine is consistent with the rotation axis of the rotating base. The launching platform, fixed inside the launching shaft, is used to support the base and ensure that the height and horizontal position of the base are consistent with the central axis of each pipe jacking machine and the central axis of the corresponding preset trapezoidal pipe jacking installation path. The drive mechanism is used to drive the rotating seat to rotate forward / reverse so that the pipe jacking machine rotates to match the preset trapezoidal pipe jacking installation position.

2. The propulsion device of the rotatable trapezoidal tube curtain jacking machine as described in claim 1, characterized in that, It also includes a guide anti-rotation structure, fixed at the starting well, to prevent the trapezoidal pipe from changing its position during jacking.

3. The propulsion device of the rotatable trapezoidal tube curtain jacking machine as described in claim 2, characterized in that, The guide anti-rotation structure includes a frame and multiple limiting members. The frame is fixed at the starting well and has an opening formed inside the frame for the trapezoidal jacking pipe to pass through. The multiple limiting members are distributed on the inner periphery of the opening and abut against the outside of the trapezoidal jacking pipe to restrict the position of the jacking trapezoidal jacking pipe.

4. The propulsion device of the rotatable trapezoidal tube curtain jacking machine as described in claim 3, characterized in that, Each of the limiting members can be extended or retracted in the direction toward the inside of the opening to restrict the trapezoidal jacking pipe in different positions.

5. The propulsion device of the rotatable trapezoidal tube curtain jacking machine as described in claim 1, characterized in that, The rotating seat has an arc-shaped cross-section, and the rotation angle of the rotating seat is within the range of -45° to +45°; the pipe jacking machine has four installation positions in which each side serves as the bottom edge and slides into the channel.

6. The propulsion device of the rotatable trapezoidal tube curtain roofing machine as described in claim 5, characterized in that, The propulsion device also includes a support guide for guiding the pipe jacking machine as it slides along the channel. The support guide can be changed to a different support guide configuration depending on the four installation positions of the pipe jacking machine.

7. The propulsion device of the rotatable trapezoidal tube curtain jacking machine as described in claim 6, characterized in that, The support guide includes at least one flat support guide that can be adapted to the horizontal side of the pipe jacking machine, at least one first inclined support guide that can be adapted to one wedge-shaped side of the pipe jacking machine, and at least one second inclined support guide that can be adapted to the other wedge-shaped side of the pipe jacking machine. One end of each of the flat support guide, the first inclined support guide, and the second inclined support guide can be detachably connected to the rotating seat, and the other end can extend into the channel and form a guide channel for constraining the position of the pipe jacking machine when it slides.

8. The propulsion device of the rotatable trapezoidal tube curtain jacking machine as described in claim 5, characterized in that, The driving mechanism includes a drive motor, a gear, and an arc-shaped rack. The arc-shaped rack is fixed on a rotating base, and the central axis of the arc-shaped rack is aligned with the rotation axis of the rotating base. The drive motor is fixed on a base, and the gear is fixed on the output shaft of the drive motor and meshes with the arc-shaped rack.

9. The propulsion device of the rotatable trapezoidal tube curtain roofing machine as described in claim 1, characterized in that, An angle ruler with its central axis aligned with the central axis of the rotating seat is fixed on the base, and an indicator needle for indicating the angle in conjunction with the angle ruler is connected to the rotating seat.

10. A method for adjusting the position and orientation of a rotatable trapezoidal tube curtain roofing machine, employing the propulsion device as described in claim 1, characterized in that... Includes the following steps: S1. Use the starting platform to support the base and make the central axis of the pipe jacking machine consistent with the central axis of the preset trapezoidal pipe jacking installation path; S2. Use the drive mechanism to drive the rotating seat to rotate forward / reverse, so as to rotate the pipe jacking machine to match the preset trapezoidal pipe jacking installation position.

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