Anti-pipe sticking device of rock stratum pipe jacking machine

Abstract

The present application relates to pipe jacking construction technical field, disclose a kind of anti-pipe jamming device of rock stratum pipe jacking machine, including bottom plate, and top pipe assembly, support assembly, spraying structure and anti-pipe jamming component are installed on bottom plate;Top pipe assembly is used to advance pipe fitting, and support assembly is used to support pipe fitting;Anti-pipe jamming component includes first support frame, and rotatable rotating gear ring is installed on first support frame and the driving structure for driving rotating gear ring rotation;Rotating gear ring's ring inside is equipped with multiple brush plates, and brush plate cooperates spraying structure and is sprayed to the outer wall of pipe fitting.The present application is installed spraying structure and brush plate, and spraying structure sprays lubricant to the outer wall of pipe fitting, cooperates driving structure and brush plate and evenly spreads the lubricant on the surface of pipe fitting to form lubricating film, to reduce the frictional resistance of pipe fitting and rock stratum to reduce the risk of pipe jamming.

Description

Technical Field

[0001] This invention relates to the field of pipe jacking construction technology, specifically to an anti-jamming device for a pipe jacking machine in rock formations. Background Technology

[0002] A pipe jacking machine is the front-end tunneling machine head for trenchless underground pipeline construction. The entire pipe jacking system consists of the pipe jacking machine head + main jacking hydraulic system + pipe sections + auxiliary equipment. It does not require large-area excavation of the ground. It horizontally jacks the pipeline from the starting shaft into the soil layer and through to the receiving shaft. It is used to lay rainwater and sewage, water supply, power conduit, and integrated utility tunnel pipelines.

[0003] In existing technologies, when pipe jacking machines are used in rock formations, the rock formations have problems such as high hardness, uneven lithology, and easy accumulation of rock debris, which leads to greater friction between the pipe and the rock formation, resulting in pipe jamming accidents, which will seriously affect construction efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide an anti-jamming device for pipe jacking machines in rock formations, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A pipe-jacking machine anti-jamming device for rock formations includes a base plate, on which a pipe-jacking assembly, a support assembly, a spraying structure, and an anti-jamming assembly are mounted. The pipe-jacking assembly is used to advance the pipe fittings, and the support assembly is used to support the pipe fittings. The anti-jamming assembly includes a first support frame, on which a rotatable rotating gear ring and a drive structure for driving the rotating gear ring to rotate are mounted. Multiple brush plates are mounted on the inner side of the rotating gear ring, and the brush plates, in conjunction with the spraying structure, spray the outer wall of the pipe fittings.

[0006] Furthermore, the pipe jacking assembly includes an equipment frame and an annular top plate. Multiple horizontally arranged jacks are installed on the equipment frame, and the output ends of the multiple jacks are fixedly connected to the top plate.

[0007] Furthermore, the support assembly includes multiple second support frames, on which three or more guide rollers are mounted, and the three guide rollers are arranged in a U-shaped structure with the opening facing upwards.

[0008] Furthermore, the spraying structure includes an adjusting plate, with connecting plates installed at both ends of the adjusting plate. The two connecting plates and the adjusting plate are connected to form a U-shape to fit the outer wall of the pipe fitting. A spray nozzle is installed on the connecting plate, with the front end of the spray nozzle located inside the connecting plate for spraying the outer wall of the pipe fitting. The rear end of the spray nozzle is connected to a lubricant supply system through a pipe.

[0009] Furthermore, the specific connection relationship of the connecting plates installed at both ends of the adjusting plate is as follows: the lower end of the connecting plate is bent, and after connecting with the adjusting plate, the whole is U-shaped, and a connecting rod is fixedly connected to the lower end of the connecting plate; a sliding groove is provided at both ends of the adjusting plate, and the lower end of the connecting rod is slidably connected to the sliding groove, and the width of the connecting rod is the same as the width of the sliding groove; a first drive motor is installed at both ends of the adjusting plate, and a lead screw is fixedly connected to the output end of the first drive motor, and the lead screws at both ends of the adjusting plate pass through the two connecting rods by means of threaded connection.

[0010] Furthermore, two parallel positioning rings are fixedly installed on the first support frame. The size of the two positioning rings is the same as that of the rotating gear ring. The rotating gear ring is slidably engaged between the two positioning rings. The first support frame includes a bottom support plate and side support plates connected to both ends of the bottom support plate. The driving structure is a second drive motor, which is mounted on the bottom support plate. A gear is fixedly installed at the output end of the second drive motor. A rack is provided on the outer side of the rotating gear ring, and the gear meshes with the rack.

[0011] It also includes a cleaning component, which is mounted on the lateral support plate, wherein the cleaning component is mounted on one of the lateral support plates or both lateral support plates are mounted with the cleaning component; The cleaning assembly includes two limiting rods, a limiting plate, and an adjusting screw. The two limiting rods are fixedly connected to two positioning rings, and the two limiting rods pass through both ends of the limiting plate. Springs are fitted on the outer sides of the two limiting rods, with one end of the spring connected to the limiting plate and the other end connected to the positioning ring. A cleaning brush is fixedly installed on the limiting plate, with the cleaning brush facing the rack. The adjusting screw passes through a lateral support plate via a threaded connection, and one end of the adjusting screw is rotatably connected to the limiting plate.

[0012] Compared with the prior art, the present invention has the following advantages and beneficial effects: This invention includes a spraying structure and a brush plate. The spraying structure sprays lubricant onto the outer wall of the pipe, and the drive structure and brush plate work together to evenly coat the lubricant on the surface of the pipe to form a lubricating film, thereby reducing the frictional resistance between the pipe and the rock formation and thus reducing the risk of pipe jamming.

[0013] The second drive motor drives the rotating gear ring and brush plate to rotate, which in turn causes the brush plate to move on the surface of the pipe, uniformly coating the lubricant into a film, significantly reducing the frictional resistance between the pipe and the rock formation, and providing anti-jamming protection throughout the entire process from positioning and lubrication to film formation. Attached Figure Description

[0014] Figure 1 This is a diagram showing the working state of the present invention.

[0015] Figure 2This is a structural diagram of the present invention from another angle.

[0016] Figure 3 Structural diagram of the anti-jamming tube assembly.

[0017] Figure 4 This is a structural diagram of the spray coating structure.

[0018] Figure 5 The structure diagram for cleaning up components.

[0019] Figure 6 This is a structural diagram of the rotating gear ring and brush plate.

[0020] The meanings of the markings in the diagram are as follows: 1-Base plate, 2-Pipe jacking assembly, 21-Equipment frame, 22-Jack, 23-Top plate, 3-Support assembly, 4-Anti-pipe jamming assembly, 401-Bottom support plate, 402-Side support plate, 403-Rotating gear ring, 404-Rack, 405-Brush plate, 406-Second drive motor, 407-Gear, 408-Positioning ring, 409-Limit rod, 410-Limit plate, 411-Spring, 412-Cleaning brush, 413-Adjusting screw, 5-Spraying structure, 501-Adjusting plate, 502-Connecting plate, 503-Connecting rod, 504-Sliding groove, 505-First drive motor, 506-Screw. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, so as to provide a better understanding of the concept of the present invention, the technical problem solved, the technical features constituting the technical solution, and the technical effects brought about.

[0022] like Figures 1-3 As shown, an anti-jamming device for a pipe jacking machine in rock formations includes a base plate 1, on which a pipe jacking assembly 2, a support assembly 3, a spraying structure 5, and an anti-jamming assembly 4 are mounted. The pipe jacking assembly 2 is used to advance the pipe, and the support assembly 3 is used to support the pipe. The anti-jamming assembly 4 includes a first support frame, on which a rotatable rotating gear ring 403 and a drive structure for driving the rotating gear ring 403 to rotate are mounted. Multiple brush plates 405 are mounted on the inner side of the rotating gear ring 403, and the brush plates 405 cooperate with the spraying structure 5 to spray the outer wall of the pipe.

[0023] The present invention is equipped with a spraying structure 5 and a brush plate 405. The spraying head structure sprays lubricant onto the outer wall of the pipe. In conjunction with the drive structure and the brush plate 405, the lubricant on the surface of the pipe is evenly coated to form a lubricating film, thereby reducing the frictional resistance between the pipe and the rock formation and thus reducing the risk of pipe jamming.

[0024] Furthermore, the pipe jacking assembly 2 includes an equipment frame 21 and an annular top plate 23. Multiple horizontally arranged jacks 22 are mounted on the equipment frame 21, and the output ends of the multiple jacks 22 are jointly and fixedly connected to the top plate 23. A rubber buffer layer is provided on the outer side of the top plate 23 to reduce the impact on the concrete pipe during jacking. Pressure sensors are installed in the hydraulic lines of the jacks 22 to monitor the jacking pressure in real time. The function of the jacks 22 is to push the top plate 23, thereby driving the concrete pipe into the rock strata.

[0025] Furthermore, the support assembly 3 includes multiple second support frames, on which three or more guide rollers are mounted. The three guide rollers are arranged in a U-shape with the opening facing upwards. The U-shape formed by the multiple guide rollers accurately positions the concrete pipe fitting, preventing it from shifting or getting stuck during jacking.

[0026] like Figure 4 As shown, the spraying structure 5 further includes an adjusting plate 501, with connecting plates 502 installed at both ends of the adjusting plate 501. The two connecting plates 502 and the adjusting plate 501 are connected to form a U-shape to fit the outer wall of the pipe fitting. A spray nozzle is installed on the connecting plate 502, with the front end of the spray nozzle located inside the connecting plate 502 for spraying the outer wall of the pipe fitting. The rear end of the spray nozzle is connected to a lubricant supply system via a pipe. The spray nozzle uses an atomizing nozzle. After the spray nozzle is connected to the pipe, the lubricant is sprayed onto the surface of the pipe fitting through the atomizing nozzle, and then coated by the subsequent brush plate 405 to form a lubricating film.

[0027] Furthermore, the connection relationship between the connecting plates 502 installed at both ends of the adjusting plate 501 is as follows: the lower end of the connecting plate 502 is bent, and after connecting with the adjusting plate 501, the whole is U-shaped. A connecting rod 503 is fixedly connected to the lower end of the connecting plate 502. Sliding grooves 504 are respectively provided at both ends of the adjusting plate 501. The lower end of the connecting rod 503 is slidably connected to the sliding groove 504, and the width of the connecting rod 503 is the same as the width of the sliding groove 504. A first drive motor 505 is installed at both ends of the adjusting plate 501. A lead screw 506 is fixedly connected to the output end of the first drive motor 505. The lead screws 506 at both ends of the adjusting plate 501 pass through the two connecting rods 503 by threaded connection. The first drive motor 505 drives the lead screw 506 to rotate, thereby adjusting the distance between the two connecting plates 502. The distance between the two connecting plates 502 can be flexibly changed to adapt to pipes of different diameters, ensuring that the atomizing nozzle is close to the pipe wall to achieve comprehensive lubrication spraying.

[0028] like Figure 6As shown, furthermore, two parallel positioning rings 408 are fixedly installed on the first support frame. The size of the two positioning rings 408 is the same as the size of the rotating gear ring 403. The rotating gear ring 403 is rotatably engaged between the two positioning rings 408. The first support frame includes a bottom support plate 401 and lateral support plates 402 connected to both ends of the bottom support plate 401. The driving structure is a second drive motor 406, which is mounted on the bottom support plate 401. A gear 407 is fixedly installed at the output end of the second drive motor 406. A rack 404 is provided on the outer side of the rotating gear ring 403, and the gear 407 meshes with the rack 404. The second drive motor 406 drives the rotating gear ring 403 and the brush plate 405 to rotate, thereby causing the brush plate 405 to move on the surface of the pipe, uniformly coating the lubricant into a film, significantly reducing the frictional resistance between the pipe and the rock formation, and providing anti-jamming protection throughout the entire process from positioning and lubrication to film formation.

[0029] like Figure 5 As shown, it also includes a cleaning component, which is installed on the lateral support plate 402, wherein one of the lateral support plates 402 is equipped with a cleaning component or both lateral support plates 402 are equipped with a cleaning component; The cleaning assembly includes two limiting rods 409, a limiting plate 410, and an adjusting screw 413. The two limiting rods 409 are fixedly connected to two positioning rings 408, respectively. The two limiting rods 409 pass through both ends of the limiting plate 410. Springs 411 are respectively fitted onto the outer sides of the two limiting rods 409. One end of each spring 411 is connected to the limiting plate 410, and the other end is connected to the positioning rings 408. A cleaning brush 412 is fixedly installed on the limiting plate 410, facing the rack 404. The adjusting screw 413 passes through a lateral support plate 402 via a threaded connection, and one end of the adjusting screw 413 is rotatably connected to the limiting plate 410. The cleaning brush 412 enables rapid cleaning of residual impurities within the tooth grooves on the surface of the rotating rack 403. Combined with the fine-tuning function of the adjusting screw 413, it prevents gear 407 from jamming, extending the equipment's service life.

[0030] The terms "connection" and "fixing" appearing in the description of this invention can refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meaning of the above terms in this invention should be understood in the context of the specific circumstances.

[0031] In the description of this invention, the terms "center," "upper," "lower," "horizontal," "inner," and "outer," etc., are used only to indicate the orientation or positional relationship for the convenience of describing this invention and to simplify the description, and do not indicate or imply a specific orientation that the device or element referred to must have, and therefore should not be construed as a limitation of this invention.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pipe-jamming prevention device for a pipe jacking machine in rock formations, characterized in that: Includes a base plate (1), on which a jacking pipe assembly (2), a support assembly (3), a spraying structure (5), and an anti-jamming pipe assembly (4) are installed; The pipe jacking assembly (2) is used to advance the pipe fittings, and the support assembly (3) is used to support the pipe fittings; The anti-jamming tube assembly (4) includes a first support frame, on which a rotatable rotating toothed ring (403) and a drive structure for driving the rotating toothed ring (403) to rotate are mounted; Multiple brush plates (405) are installed on the inner side of the rotating gear ring (403), and the brush plates work together with the spraying structure (5) to spray the outer wall of the pipe.

2. The anti-jamming device for a pipe jacking machine in rock formations according to claim 1, characterized in that: The jacking assembly (2) includes an equipment frame (21) and an annular top plate (23). Multiple horizontally arranged jacks (22) are installed on the equipment frame (21), and the output ends of the multiple jacks (22) are fixedly connected to the top plate (23).

3. The anti-jamming device for a pipe jacking machine in rock formations according to claim 1, characterized in that: The support assembly (3) includes multiple second support frames, on which three or more guide rollers are installed. The three guide rollers are arranged in a U-shaped structure with the opening facing upward.

4. The anti-jamming device for a pipe jacking machine in rock formations according to claim 1, characterized in that: The spraying structure (5) includes an adjusting plate (501), and connecting plates (502) are installed at both ends of the adjusting plate (501). After the two connecting plates (502) and the adjusting plate (501) are connected, the whole structure is U-shaped to fit the outer wall of the pipe fitting. A spray nozzle is installed on the connecting plate (502). The front end of the spray nozzle is located inside the connecting plate (502) and is used to spray the outer wall of the pipe fitting. The rear end of the spray nozzle is connected to the lubricant supply system through a pipe.

5. A pipe-jamming prevention device for a rock stratum pipe jacking machine according to claim 4, characterized in that: The specific connection relationship between the connecting plates (502) installed at both ends of the adjusting plate (501) is as follows: The lower end of the connecting plate (502) is bent, and after connecting with the adjusting plate (501), the whole is U-shaped. The lower end of the connecting plate (502) is fixedly connected with the connecting rod (503). The adjusting plate (501) is provided with sliding grooves (504) at both ends. The lower end of the connecting rod (503) is slidably connected to the sliding groove (504), and the width of the connecting rod (503) is the same as the width of the sliding groove (504). The first drive motor (505) is installed at both ends of the adjusting plate (501). The output end of the first drive motor (505) is fixedly connected to the lead screw (506). The lead screw (506) at both ends of the adjusting plate (501) passes through the two connecting rods (503) by means of threaded connection.

6. The anti-jamming device for a pipe jacking machine in rock formations according to claim 1, characterized in that: Two positioning rings (408) are fixedly installed on the first support frame in parallel. The size of the two positioning rings (408) is the same as the size of the rotating toothed ring (403). The rotating toothed ring (403) is slidably engaged between the two positioning rings (408). The first support frame includes a bottom support plate (401) and side support plates (402) connected to both ends of the bottom support plate (401). The driving structure is a second drive motor (406). The second drive motor (406) is mounted on the bottom support plate (401). A gear (407) is fixedly mounted on the output end of the second drive motor (406). A rack (404) is provided on the outer side of the rotating gear ring (403). The gear (407) meshes with the rack (404).

7. The anti-jamming device for a pipe jacking machine in rock formations according to claim 6, characterized in that: It also includes a cleaning component, which is mounted on the side support plate (402), wherein one side support plate (402) is equipped with the cleaning component or both side support plates (402) are equipped with the cleaning component; The cleaning assembly includes two limiting rods (409), a limiting plate (410), and an adjusting screw (413). The two limiting rods (409) are fixedly connected to two positioning rings (408) respectively. The two limiting rods (409) pass through both ends of the limiting plate (410). Springs (411) are respectively sleeved on the outer side of the two limiting rods (409). One end of the spring (411) is connected to the limiting plate (410), and the other end of the spring (411) is connected to the positioning ring (408). A cleaning brush (412) is fixedly installed on the limiting plate (410) and is positioned facing the rack (404). The adjusting screw (413) passes through the lateral support plate (402) by a threaded connection. One end of the adjusting screw (413) is rotatably connected to the limiting plate (410).

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