Pipe jacking machine for curved pipe jacking construction

Abstract

The utility model discloses a pipe jacking machine for curved pipe jacking construction, which relates to the technical field of curved pipe jacking construction and comprises a fixed pipe, an adjusting mechanism is arranged in the fixed pipe, and a screening mechanism is arranged on the front side of the fixed pipe. The adjusting mechanism comprises a first fixing block, the outer wall of the first fixing block is fixedly connected with an adjusting box, the inner wall of the adjusting box is fixedly connected with a first motor, and an output shaft at the bottom of the first motor is fixedly connected with a first bevel gear through a coupler. At the moment, a first motor drives a first bevel gear to rotate, when the first bevel gear rotates, a second bevel gear is driven to rotate, so that a worm is driven to rotate, a worm gear is driven to rotate, and when a worm wheel rotates, an adjusting rod is driven to rotate, so that a second fixing block is driven to rotate; the second fixing block rotates to drive the outer cover to rotate, and therefore the angle of the cutting disc is adjusted.

Description

Technical Field

[0001] This utility model belongs to the field of curved pipe jacking construction technology, and in particular relates to a pipe jacking machine for curved pipe jacking construction. Background Technology

[0002] Pipe jacking is a trenchless technology commonly used in urban underground pipeline construction. It uses mechanical equipment to push the pipeline underground, avoiding the damage to the ground and surrounding environment caused by traditional excavation methods. The pipe jacking machine is the core equipment for completing this construction process and is typically suitable for laying underground pipelines in straight lines, horizontally, or with small curves.

[0003] Traditional pipe jacking machines are mainly used for pipeline construction on straight or slightly curved paths. When the construction path involves significant curves or requires high precision, the positioning and guiding capabilities of traditional pipe jacking machines are insufficient, easily leading to construction errors. They are ill-suited for handling pipe jacking operations with large directional curvatures, affecting the installation quality and construction progress. Therefore, we propose a pipe jacking machine for curved pipe jacking construction. Utility Model Content

[0004] The purpose of this utility model is to provide a pipe jacking machine for curved pipe jacking construction. When the first bevel gear rotates, it drives the second bevel gear to rotate, which in turn drives the worm gear to rotate, which in turn drives the worm wheel to rotate. When the worm gear rotates, it drives the adjusting rod to rotate. This solves the problem that traditional pipe jacking machines have insufficient positioning and guiding capabilities, which can easily lead to construction errors and make it difficult to meet the needs of curved pipe jacking operations with large directional curvature.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a pipe jacking machine for curved pipe jacking construction, including a fixed pipe, an adjustment mechanism is provided inside the fixed pipe, and a material screening mechanism is provided on the front of the fixed pipe;

[0007] The adjustment mechanism includes a fixed block 1, the outer surface of which is fixedly connected to the inner wall of a fixed tube. An adjustment box is fixedly connected to the outer wall of the fixed block 1. A first motor is fixedly connected to the inner wall of the adjustment box. A bevel gear 1 is fixedly connected to the bottom output shaft of the first motor via a coupling. A support block is fixedly connected to the inner wall of the adjustment box. A worm gear is rotatably connected to the inner wall of the support block. A bevel gear 2 is fixedly connected to the end of the worm gear near the bevel gear 1. The bevel gear 2 meshes with the end of the bevel gear 1 that is close to each other. An adjustment rod is rotatably connected to the inner wall of the adjustment box. A worm wheel is fixedly connected to the outer surface of the adjustment rod. The worm wheel meshes with the end of the worm gear that is close to each other. The rotation of the worm gear drives the worm wheel to rotate, thereby driving the adjustment rod to rotate.

[0008] Furthermore, a second support block is rotatably connected to the outer surface of the adjusting rod. There are two second support blocks in total. The second support blocks support the adjusting rod and prevent it from shaking when rotating.

[0009] Furthermore, the top of the second support block located at the top is fixedly connected to the inner wall of the fixed tube, and the bottom of the second support block located at the bottom is fixedly connected to the inner wall of the fixed tube, thereby supporting and fixing the second support block through the fixed tube.

[0010] Furthermore, the screening mechanism includes an outer cover fixedly connected to the outer wall of the second fixed block. A second motor is fixedly connected to the outer wall of the outer cover. The bottom output shaft of the second motor is fixedly connected to a drive shaft via a coupling. An extrusion block is fixedly connected to the outer surface of the drive shaft. A screening block is fixedly connected to the inner wall of the outer cover. The inner wall of the screening block is rotatably connected to the outer surface of the drive shaft. The second motor drives the drive shaft to rotate, thereby causing the extrusion block to rotate.

[0011] Furthermore, a cutting disc is fixedly connected to the end of the drive shaft away from the second motor, and a support shaft is fixedly connected to the inner wall of the cutting disc. Several support shafts are provided, and a cutter is rotatably connected to the outer surface of each support shaft. The drive shaft rotates to drive the cutting disc to rotate, thereby driving the cutter to rotate.

[0012] Furthermore, the inner wall of the cutting disc is provided with slots, and a total of several slots are provided to guide the mud and sand to be removed in front of the cutting disc into the outer cover through the slots.

[0013] Furthermore, a fixed outer tube is fixedly connected to the outer surface of the outer cover, and the inner wall of the fixed outer tube is rotatably connected to the outer surface of the fixed tube. The fixed outer tube supports the outer cover and protects it.

[0014] Furthermore, a water inlet pipe is fixedly connected to the inner wall of the outer cover, and a water pump is fixedly connected to the end of the water inlet pipe away from the outer cover. There are two water pumps in total. The ends of the water pumps and the fixed blocks are fixedly connected to each other. A discharge pipe is fixedly connected to the inner wall of the outer cover, and the end of the discharge pipe away from the outer cover is fixedly connected to the outer wall of the water pump.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model incorporates an adjustment mechanism. When the pipe jacking machine needs to adjust its movement angle, the first motor drives the first bevel gear to rotate. The rotation of the first bevel gear drives the second bevel gear to rotate, which in turn drives the worm gear to rotate, which in turn drives the worm wheel to rotate. When the worm gear rotates, it drives the adjustment rod to rotate, which in turn drives the second fixed block to rotate. The rotation of the second fixed block drives the outer cover to rotate, thereby adjusting the angle of the cutting disc. This ensures that the cutting direction changes accordingly with the change of the cutting disc angle, meeting the needs of pipe jacking operations with large directional arcs. At the same time, during the adjustment process, the rotation of the worm gear drives the rotation of the worm wheel, ensuring the smoothness and accuracy of the rotation and preventing relative slippage between the two, which could cause errors.

[0017] 2. This utility model incorporates a screening mechanism driven by a second motor, which rotates the drive shaft. The rotation of the drive shaft causes the cutting disc to rotate, which in turn causes the cutter to rotate around the drive shaft. Sand and small-sized gravel flow into the outer casing through the slot. When the cutting disc encounters larger stones, the cutter crushes them by squeezing them. The rotation of the drive shaft also causes the extrusion block to rotate. The extrusion block and the screening block further crush the gravel inside the outer casing. During this crushing process, smaller-sized gravel and sand can pass through the mesh of the screening block smoothly, while larger-sized stones remain above the screening block, continuing to be impacted and ground by the extrusion block until their particle size meets the requirements before passing through the screening block. This ensures that sand and gravel do not clog the discharge pipe after being screened by the screening block.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic cross-sectional view of the right side of the fixing tube of this utility model;

[0022] Figure 3 This is a schematic cross-sectional view of the top of the fixed tube of this utility model;

[0023] Figure 4 This utility model Figure 3Enlarged structural diagram of section A in the middle;

[0024] Figure 5 This is a schematic cross-sectional view of the right side of the fixed outer tube of this utility model;

[0025] Figure 6 This is a front sectional view of the fixed outer tube of this utility model.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 101. Fixed pipe; 2. Adjustment mechanism; 201. Fixed block one; 202. Adjustment box; 203. First motor; 204. Bevel gear one; 205. Bevel gear two; 206. Worm; 207. Adjustment rod; 208. Worm wheel; 209. Support block; 210. Fixed block two; 211. Support block two; 3. Screening mechanism; 301. Fixed outer pipe; 302. Outer cover; 304. Second motor; 305. Drive shaft; 306. Cutting disc; 307. Cutter; 308. Groove; 309. Extrusion block; 310. Screening block; 311. Water inlet pipe; 312. Discharge pipe; 313. Support shaft; 314. Water pump. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-6As shown, this utility model is a pipe jacking machine for curved pipe jacking construction, including a fixed pipe 101. An adjustment mechanism 2 is installed inside the fixed pipe 101, and a screening mechanism 3 is installed on the front of the fixed pipe 101. The adjustment mechanism 2 includes a first fixed block 201, the outer surface of which is fixedly connected to the inner wall of the fixed pipe 101. An adjustment box 202 is fixedly connected to the outer wall of the first fixed block 201, providing fixed support for the adjustment box 202. A first motor 203 is fixedly connected to the inner wall of the adjustment box 202. A bevel gear 204 is fixedly connected to the bottom output shaft of the first motor 203 via a coupling, driving the bevel gear 204 to rotate. A support block 209 is fixedly connected to the inner wall of the adjustment box 202, and a worm gear 206 is rotatably connected to the inner wall of the support block 209. A second bevel gear 205 is fixedly connected to one end of the worm gear 206 near the first bevel gear 204. The second bevel gear 205 and the first bevel gear 204 are connected... The two ends of the worm gear 206 mesh with each other, and the rotation of the first bevel gear 204 drives the second bevel gear 205 to rotate, which in turn drives the worm gear 206 to rotate. The worm gear 206 is supported by the support block 209 to prevent it from shaking when rotating. An adjusting rod 207 is rotatably connected to the inner wall of the adjusting box 202. A worm wheel 208 is fixedly connected to the outer surface of the adjusting rod 207. The worm wheel 208 meshes with the end of the worm gear 206 that is close to each other. The rotation of the worm gear 206 drives the worm wheel 208 to rotate, which in turn drives the adjusting rod 207 to rotate. A second support block 211 is rotatably connected to the outer surface of the adjusting rod 207. There are two second support blocks 211. The top of the second support block 211 is fixedly connected to the inner wall of the fixed tube 101, and the bottom of the second support block 211 is fixedly connected to the inner wall of the fixed tube 101. The second support block 211 supports the adjusting rod 207 to prevent it from shaking when rotating.

[0030] The screening mechanism 3 includes an outer cover 302 fixedly connected to the outer wall of the fixed block 210. A second motor 304 is fixedly connected to the outer wall of the outer cover 302. The bottom output shaft of the second motor 304 is fixedly connected to a drive shaft 305 via a coupling. An extrusion block 309 is fixedly connected to the outer surface of the drive shaft 305. A screening block 310 is fixedly connected to the inner wall of the outer cover 302. The inner wall of the screening block 310 is rotatably connected to the outer surface of the drive shaft 305. The second motor 304 drives the drive shaft 305 to rotate, thereby driving the extrusion block 309 to rotate. The rotation of the extrusion block 309 and the screening block 310 extrude crushed stone inside the outer cover 302 until the crushed stone is sized to pass through the screening block 310. The mesh is open, and a cutting disc 306 is fixedly connected to one end of the drive shaft 305 away from the second motor 304. A support shaft 313 is fixedly connected to the inner wall of the cutting disc 306. Several support shafts 313 are provided, and cutters 307 are rotatably connected to the outer surface of each support shaft 313. The rotation of the drive shaft 305 drives the cutting disc 306 to rotate, thereby driving the cutters 307 to rotate around the drive shaft 305 as the center. The cutters 306 crush the larger stones encountered when the cutting disc 306 moves forward. The inner wall of the cutting disc 306 has slots 308. Several slots 308 are provided, and the mud, sand and gravel dug up by the cutting disc 306 when it moves forward are guided into the outer cover 302 through the slots 308.

[0031] A fixed outer tube 301 is fixedly connected to the outer surface of the outer cover 302. The inner wall of the fixed outer tube 301 is rotatably connected to the outer surface of the fixed tube 101. This rotatable connection between the fixed outer tube 301 and the outer surface of the fixed tube 101 ensures that the interior of the fixed tube 101 remains sealed even when the fixed outer tube 301 rotates. A water inlet pipe 311 is fixedly connected to the inner wall of the outer cover 302. A water pump 314 is fixedly connected to the end of the water inlet pipe 311 furthest from the outer cover 302. Two water pumps 314 are provided. 02. The water inlet pipe 311 and the discharge pipe 312 are supported. The water pump 314 is fixedly connected to the end of the fixed block 201 that is close to each other. The discharge pipe 312 is fixedly connected to the inner wall of the outer cover 302. The end of the discharge pipe 312 away from the outer cover 302 is fixedly connected to the outer wall of the water pump 314. The water pump 314 enables the water inlet pipe 311 to spray water into the outer cover 302. At the same time, the water pump 314 enables the discharge pipe 312 to discharge the mud and water inside the outer cover 302.

[0032] One specific application of this embodiment is:

[0033] When the equipment is needed, the second motor 304 drives the drive shaft 305 to rotate. The rotation of the drive shaft 305 drives the cutting disc 306 to rotate, which in turn drives the cutter 307 to rotate around the drive shaft 305. Sand and small gravel flow into the outer cover 302 through the slot 308. When the cutting disc 306 encounters larger stones, the cutter 307 crushes them by squeezing. The rotation of the drive shaft 305 drives the squeezing block 309 to rotate. The rotation of the squeezing block 309 and the interaction between the screen block 310 and the outer cover... The crushed stone inside 302 is compressed and crushed again. During the compression and crushing process, smaller-diameter crushed stone and sand can pass smoothly through the mesh of the screen block 310, while larger-diameter stones are left above the screen block and continue to be impacted and ground by the compression block 309 until their particle size meets the requirements and they pass through the screen block 310. This ensures that the sand and crushed stone will not block the discharge pipe 312 after being screened by the screen block 310. At this time, the water inlet pipe 311 sprays water into the outer cover 302 to form slurry from the screened crushed stone and sand, and then discharges the slurry through the discharge pipe 312.

[0034] When the pipe jacking machine needs to adjust its movement angle, the first motor 203 drives the first bevel gear 204 to rotate. The rotation of the first bevel gear 204 drives the second bevel gear 205 to rotate, which in turn drives the worm gear 206 to rotate, which in turn drives the worm wheel 208 to rotate. When the worm wheel 208 rotates, it drives the adjusting rod 207 to rotate, which in turn drives the second fixed block 210 to rotate. The rotation of the second fixed block 210 drives the outer cover 302 to rotate, thereby adjusting the angle of the cutting disc 306. As the angle of the cutting disc 306 changes, its cutting direction also changes accordingly, which can meet the needs of curved pipe jacking operations with left and right curvature. At the same time, during the adjustment process, the rotation of the worm gear 206 drives the rotation of the worm wheel 208, which can ensure the smoothness and accuracy of the rotation and prevent relative slippage between the two, thus preventing errors.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A pipe jacking machine for curved pipe jacking construction, comprising a fixed pipe (101), characterized in that: The fixed pipe (101) is internally provided with an adjusting mechanism (2), and the front surface of the fixed pipe (101) is provided with a screening mechanism (3); The adjusting mechanism (2) comprises a fixed block one (201), the outer surface of the fixed block one (201) is fixedly connected with the inner wall of the fixed pipe (101), the outer wall of the fixed block one (201) is fixedly connected with an adjusting box (202), the inner wall of the adjusting box (202) is fixedly connected with a first motor (203), the bottom output shaft of the first motor (203) is fixedly connected with a bevel gear one (204) through a shaft coupling, the inner wall of the adjusting box (202) is fixedly connected with a supporting block (209), the inner wall of the supporting block (209) is rotatably connected with a worm (206), one end of the worm (206) close to the bevel gear one (204) is fixedly connected with a bevel gear two (205), the ends of the bevel gear two (205) and the bevel gear one (204) close to each other are engaged, the inner wall of the adjusting box (202) is rotatably connected with an adjusting rod (207), the outer surface of the adjusting rod (207) is fixedly connected with a worm wheel (208), and the ends of the worm wheel (208) and the worm (206) close to each other are engaged.

2. The pipe jacking machine for curved pipe jacking construction according to claim 1, characterized in that, The outer surface of the adjusting rod (207) is rotatably connected with a supporting block two (211), and the supporting block two (211) is provided with two.

3. The pipe jacking machine for curved pipe jacking construction according to claim 2, characterized in that, The top of the supporting block two (211) located at the top is fixedly connected with the inner wall of the fixed pipe (101), and the bottom of the supporting block two (211) located at the bottom is fixedly connected with the inner wall of the fixed pipe (101).

4. The pipe jacking machine for curved pipe jacking construction according to claim 3, characterized in that, The screening mechanism (3) comprises an outer cover (302) fixedly connected to the outer wall of the fixed block two (210), the outer wall of the outer cover (302) is fixedly connected with a second motor (304), the bottom output shaft of the second motor (304) is fixedly connected with a driving shaft (305) through a shaft coupling, the outer surface of the driving shaft (305) is fixedly connected with a squeezing block (309), the inner wall of the outer cover (302) is fixedly connected with a screening block (310), and the inner wall of the screening block (310) is rotatably connected with the outer surface of the driving shaft (305).

5. The pipe jacking machine for curved pipe jacking construction according to claim 4, characterized in that, One end of the driving shaft (305) away from the second motor (304) is fixedly connected with a cutting disc (306), the inner wall of the cutting disc (306) is fixedly connected with a supporting shaft (313), a plurality of supporting shafts (313) are provided, and the outer surfaces of the supporting shafts (313) are rotatably connected with cutters (307).

6. A pipe jacking machine for curved pipe jacking according to claim 5, characterized in that The inner wall of the cutting disc (306) is provided with a notch (308), and a plurality of notches (308) are provided.

7. The pipe jacking machine for curved pipe jacking construction according to claim 6, characterized in that, The outer surface of the outer cover (302) is fixedly connected with a fixed outer pipe (301), and the inner wall of the fixed outer pipe (301) is rotatably connected with the outer surface of the fixed pipe (101).

8. The pipe jacking machine for curved pipe jacking construction according to claim 7, characterized in that, The inner wall of the cover (302) is fixedly connected with a water inlet pipe (311), one end of the water inlet pipe (311) away from the cover (302) is fixedly connected with a water pump (314), the water pump (314) is provided with two, one end of the water pump (314) and the fixed block (201) is fixedly connected, the inner wall of the cover (302) is fixedly connected with a discharge pipe (312), one end of the discharge pipe (312) away from the cover (302) is fixedly connected with the outer wall of the water pump (314).

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