A balancing device for a slurry balance pipe jacking machine

Abstract

This invention belongs to the technical field of auxiliary equipment for slurry balance pipe jacking machines, specifically a balancing device for slurry balance pipe jacking machines. The device includes a tunneling machine, an internal cutterhead assembly, a slurry conveyor on the right side of the cutterhead assembly, a pipe on the right side of the tunneling machine, and a bolster on the right side of the pipe. Multiple hydraulic cylinders are mounted on the upper end of the bolster, and a leveling device and a fixing device are installed on the top of the bolster. Through the above structural cooperation, when the bolster tilts, the inclined end of the sleeve shaft drives a bevel gear to move along the driven rod, causing the inclined bevel gear to mesh with a second bevel gear. Power is provided by a motor, causing the threaded rod to connect with the sleeve rod, thereby moving the base up and down to achieve horizontal adjustment of the bolster. This prevents the tunneling machine from shifting due to the bolster's tilt, reduces the eccentric force on the device, and improves its service life.

Description

Technical Field

[0001] This invention belongs to the technical field of auxiliary equipment for slurry balance pipe jacking machines, specifically a balancing device for slurry balance pipe jacking machines. Background Technology

[0002] Pipe jacking is a trenchless construction method, a technology for laying pipelines with little or no excavation. The process involves using a pipe jacking machine. In this method, the jacking equipment uses its jacking force within a working pit to overcome the friction between the pipe and the surrounding soil, pushing the pipe into the ground at the designed slope, and then removing the excavated soil. After one section of pipe is pushed into the ground, the second section is lowered and the process continues.

[0003] However, the pipe jacking machine cannot play a better role in balance and stability during use. The pipe jacking machine has poor balance and stability during operation, and the vibration and noise during use are relatively large, resulting in a poor working environment for the staff and making it impossible to better guarantee the use of the pipe jacking machine.

[0004] A patent application with publication number CN110630280A discloses a balancing device for a slurry-balanced tunnel boring machine (TBM). The key technical features include: a housing with the TBM body running through it; slide rails fixedly connected to both sides of the inner wall of the housing; sliders slidably connected to the outer surfaces of the slide rails; a horizontal plate fixedly connected to one side of each slider; a stabilizing element fixedly connected to the bottom of the horizontal plate; and racks fixedly connected to both sides of the top of the horizontal plate. A fixing plate is fixedly connected to the front of the TBM body. This device provides better balance and stability during TBM operation, significantly improving the balance and stability of the TBM, ensuring its usability, and offering strong practicality. It also effectively reduces vibration and noise, optimizing the working environment for operators using the TBM.

[0005] However, the above-mentioned technologies often have the following drawbacks: the slurry balance tunneling machine cannot adjust the bolster horizontally during use. If the bolster tilts, the non-horizontal support of the bolster will cause the tunneling machine and the pipe section to bear additional eccentric force, rather than uniform axial jacking force, which will cause physical damage to mechanical parts and pipe sections in the long run.

[0006] Therefore, the present invention provides a balancing device for a slurry-balanced pipe jacking machine. Summary of the Invention

[0007] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0008] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a balancing device for a slurry-balanced pipe jacking machine, including a tunneling machine, a cutterhead assembly installed inside the tunneling machine, a slurry conveyor installed on the right side of the cutterhead assembly inside the tunneling machine, a pipeline installed on the right side of the tunneling machine, a bolster installed on the right side of the pipeline, a plurality of hydraulic cylinders installed on the upper end of the bolster, a leveling device provided on the top of the bolster, a fixing device provided on the top of the bolster, and a deviation correction device provided inside the tunneling machine.

[0009] The leveling device includes a housing, which is fixedly installed on the top of the pillow seat. Fixing frames are fixedly installed on the left and right sides of the housing. A driven rod is rotatably connected inside each of the two fixing frames. A bevel gear is slidably connected to the front and rear ends of each driven rod. A sleeve shaft is fixedly installed on the adjacent side of the two bevel gears. Multiple supports are fixedly installed around the top of the pillow seat. A threaded rod is rotatably connected to the upper end of each support. A sleeve shaft is threaded to the outer side of the lower end of the threaded rod. A base is fixedly installed at the bottom of the sleeve shaft. A bevel gear is fixedly installed to the outer side of the upper end of the threaded rod. Support seats are fixedly installed on the left and right sides of the top of the pillow seat between the two supports. A motor is fixedly installed on the top of the support seats. A drive shaft is fixedly installed at the output end of the motor. Gears are fixedly installed between the drive shaft and the outer side of the driven rod.

[0010] As a preferred technical solution of this application, the sleeve rod has an internal thread and a protrusion on its outer side. The pillow seat has a groove that matches the protrusion at the connection between the sleeve rod and the pillow seat. The groove and the protrusion match to limit the movement of the sleeve rod, so that the sleeve rod drives the base to move up and down linearly.

[0011] As a preferred technical solution of this application, a limiting groove is provided on the outer side of the driven rod, and a limiting block is provided inside the sleeve shaft. The limiting block is slidably connected to the inner wall of the limiting groove. When the pillow seat tilts, the sleeve shaft at the tilted end is pushed to drive the first bevel gear to move along the driven rod, so that the first bevel gear at the tilted end meshes with the second bevel gear. With the help of the motor, the threaded rod is threadedly connected to the sleeve rod, thereby causing the base to move up and down, so as to realize the horizontal adjustment of the pillow seat.

[0012] As a preferred technical solution of this application, the leveling device further includes an electric push rod, which is fixedly installed on the front and rear sides inside the support base. A push plate is fixedly installed at the output end of the electric push rod, and the upper end of the push plate is rotatably connected to the inside of the sleeve shaft.

[0013] As a preferred technical solution of this application, an annular groove is provided on the side of the sleeve shaft away from the first bevel gear. The upper end of the push plate is rotatably connected to the annular groove. By starting the electric push rod, the push plate is driven to move, thereby pushing the sleeve shaft to move along the driven rod, realizing the meshing of the first bevel gear and the second bevel gear at different positions, and thus realizing the horizontal adjustment of the pillow seat at different positions.

[0014] As a preferred technical solution of this application, the fixing device includes a limiting rod, which is fixedly installed at both ends inside the box. A connecting plate is slidably connected to the outside of the limiting rod. Multiple insert rods are fixedly installed at the bottom of the connecting plate. A second hydraulic cylinder is fixedly installed at the top of the box. An installation plate is fixedly installed at the output end of the second hydraulic cylinder. Connecting parts are rotatably installed at both ends of the installation plate.

[0015] As a preferred technical solution of this application, the end of the connector away from the mounting plate is rotatably connected to the top of the connecting plate, and the lower end of the insertion rod penetrates through the box. By starting the hydraulic cylinder, the mounting plate is pushed down, and under the action of the connector, the connecting plate is pushed to move the insertion rod down, so that the insertion rod is inserted into the ground, thereby improving the stability of the device.

[0016] As a preferred technical solution of this application, the correction device includes a fixed plate, which is fixedly installed inside the tunneling machine. Hydraulic cylinders are fixedly installed around the outer perimeter of the fixed plate. A top plate is fixedly installed at the output end of the hydraulic cylinders. Support rods are equidistantly installed inside the top plate, and rollers are rotatably connected equidistantly to the outer side of the support rods.

[0017] As a preferred technical solution of this application, the number of the correction devices is four, which are distributed at equal angles inside the tunneling machine. When the tunneling machine deviates, the third hydraulic cylinder on the same side as the deviated position is activated. At this time, under the action of the third hydraulic cylinder, the top plate will be pushed to contact the outer soil, and at the same time, a thrust opposite to the deviated position will be provided to the tunneling machine, thereby correcting the tunneling machine. At the same time, the roller can reduce the friction between the top plate and the soil and reduce the correction resistance.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. The balancing device for a slurry-balanced pipe jacking machine described in this invention, by setting up a leveling device, when the bolster seat tilts, pushes the sleeve shaft at the tilted end to drive bevel gear one to move along the driven rod, so that bevel gear one at the tilted end meshes with bevel gear two, and with the power provided by the motor, the threaded rod is threadedly connected to the sleeve rod, thereby causing the base to move up and down, realizing the horizontal adjustment of the bolster seat, avoiding the offset of the tunneling machine caused by the tilt of the bolster seat, reducing the eccentric force on the device, and improving the service life of the device.

[0020] 2. The balancing device for a slurry-balanced pipe jacking machine described in this invention, by setting up a correction device, when the tunneling machine deviates, activates the third hydraulic cylinder on the same side as the deviated position. At this time, under the action of the third hydraulic cylinder, the top plate will be pushed to contact the outer soil, and at the same time, a thrust opposite to the deviated position will be provided to the tunneling machine, thereby correcting the tunneling machine. At the same time, the roller can reduce the friction between the top plate and the soil, and reduce the correction resistance. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the connection between the tunneling machine and the correction device of the present invention;

[0024] Figure 3 This is a schematic diagram of the internal structure of the tunneling machine in this invention;

[0025] Figure 4 This is a cross-sectional view of the internal structure of the tunneling machine in this invention;

[0026] Figure 5 This is a schematic diagram of the connection between the leveling device and the pillow seat in this invention;

[0027] Figure 6 This is a schematic diagram of the leveling device structure of the present invention;

[0028] Figure 7 This is a partial structural diagram of the leveling device of the present invention;

[0029] Figure 8 This is a schematic diagram of the fixing device structure of the present invention.

[0030] In the diagram: 1. Tunneling machine; 2. Cutterhead assembly; 3. Sludge conveyor; 4. Pipeline; 5. Pillar seat; 6. Hydraulic cylinder one; 71. Housing; 72. Fixing frame; 73. Driven rod; 74. Bevel gear one; 75. Sleeve shaft; 76. Bracket; 77. Threaded rod; 78. Sleeve rod; 79. Base; 710. Bevel gear two; 711. Support seat; 712. Motor; 713. Drive shaft; 714. Gear; 81. Electric push rod; 82. Push plate; 91. Limit rod; 92. Connecting plate; 93. Insert rod; 94. Hydraulic cylinder two; 95. Mounting plate; 96. Connecting piece; 101. Fixing plate; 102. Hydraulic cylinder three; 103. Top plate; 104. Support rod; 105. Roller. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] Example 1: As Figures 1 to 7 As shown in the figure, a balancing device for a slurry-balanced pipe jacking machine according to an embodiment of the present invention includes a tunneling machine 1, a cutterhead assembly 2 installed inside the tunneling machine 1, a slurry conveyor 3 installed on the right side of the cutterhead assembly 2 inside the tunneling machine 1, a pipe 4 installed on the right side of the tunneling machine 1, a bolster 5 installed on the right side of the pipe 4, a plurality of hydraulic cylinders 6 installed on the upper end of the bolster 5, a leveling device provided on the top of the bolster 5, a fixing device provided on the top of the bolster 5, and a deviation correction device provided inside the tunneling machine 1.

[0033] The leveling device includes a housing 71, which is fixedly installed on the top of the pillow base 5. Fixing brackets 72 are fixedly installed on the left and right sides of the housing 71. Driven rods 73 are rotatably connected inside the two fixing brackets 72. Bevel gears 74 are slidably connected to the front and rear ends of the driven rods 73. A sleeve shaft 75 is fixedly installed on the adjacent side of the two bevel gears 74. Multiple supports 76 are fixedly installed around the top of the pillow base 5. A threaded rod 77 is rotatably connected to the upper end of each support 76. A sleeve rod 78 is threadedly connected to the outer side of the lower end of the threaded rod 77. A base 79 is fixedly installed at the bottom of the sleeve rod 78. A bevel gear 710 is fixedly installed on the outer side of the upper end of the threaded rod 77. Support seats 711 are fixedly installed on the left and right sides of the top of the pillow base 5 between the two supports 76. A motor 712 is fixedly installed on the top of the support seat 711. A drive shaft 713 is fixedly installed at the output end of the motor 712. Gears 714 are fixedly installed between the drive shaft 713 and the outer side of the driven rod 73.

[0034] like Figure 7 As shown, the sleeve rod 78 has an internal thread and a protrusion on its outer side. The pillow seat 5 has a groove that matches the protrusion at the connection point with the sleeve rod 78. The groove and the protrusion match to limit the movement of the sleeve rod 78, so that the sleeve rod 78 drives the base 79 to move up and down linearly.

[0035] like Figure 7 As shown, a limiting groove is provided on the outer side of the driven rod 73, and a limiting block is provided inside the sleeve shaft 75. The limiting block is slidably connected to the inner wall of the limiting groove. When the pillow seat 5 tilts, the sleeve shaft 75 at the tilted end is pushed to drive the bevel gear 74 to move along the driven rod 73, so that the bevel gear 74 at the tilted end meshes with the bevel gear 710. With the help of the motor 712, the threaded rod 77 is threadedly connected to the sleeve rod 78, thereby causing the base 79 to move up and down, so as to realize the horizontal adjustment of the pillow seat 5.

[0036] like Figures 6 to 7As shown, the leveling device also includes an electric push rod 81, which is fixedly installed on the front and rear sides inside the support base 711. A push plate 82 is fixedly installed at the output end of the electric push rod 81, and the upper end of the push plate 82 is rotatably connected inside the sleeve shaft 75.

[0037] like Figure 7 As shown, an annular groove is provided on the side of the sleeve shaft 75 away from the first bevel gear 74. The upper end of the push plate 82 is rotatably connected to the annular groove. By starting the electric push rod 81, the push plate 82 is driven to move, thereby pushing the sleeve shaft 75 along the driven rod 73 through the push plate 82, so as to realize the meshing of the first bevel gear 74 and the second bevel gear 710 at different positions, thereby realizing the horizontal adjustment of the pillow seat 5 at different positions.

[0038] Example 2: Figure 8 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: the fixing device includes a limiting rod 91, the limiting rod 91 is fixedly installed at the left and right ends inside the box 71, a connecting plate 92 is slidably connected to the outside of the limiting rod 91, a plurality of insert rods 93 are fixedly installed at the bottom of the connecting plate 92, a second hydraulic cylinder 94 is fixedly installed at the top of the box 71, an mounting plate 95 is fixedly installed at the output end of the second hydraulic cylinder 94, and connecting pieces 96 are rotatably installed at the left and right ends of the mounting plate 95 respectively.

[0039] like Figure 8 As shown, the end of the connector 96 away from the mounting plate 95 is rotatably connected to the top of the connecting plate 92. The lower end of the insertion rod 93 passes through the housing 71. By starting the hydraulic cylinder 94, the mounting plate 95 is pushed down. Under the action of the connector 96, the connecting plate 92 is pushed down, causing the insertion rod 93 to be inserted into the ground, thus improving the stability of the device.

[0040] Example 3: Figures 1-4 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: the correction device includes a fixed plate 101, which is fixedly installed inside the tunneling machine 1. Hydraulic cylinders 102 are fixedly installed around the outer periphery of the fixed plate 101. A top plate 103 is fixedly installed at the output end of the hydraulic cylinders 102. Support rods 104 are equidistantly installed inside the top plate 103. Rollers 105 are equidistantly rotatably connected to the outer side of the support rods 104.

[0041] like Figure 3 As shown, there are four correction devices, which are distributed at equal angles inside the tunneling machine 1. When the tunneling machine 1 deviates, the hydraulic cylinder 3 102 on the same side as the deviated position is activated. At this time, under the action of the hydraulic cylinder 3 102, the top plate 103 will be pushed to contact the outer soil, and at the same time, a thrust opposite to the deviated position will be provided to the tunneling machine 1, thereby correcting the deviation of the tunneling machine 1. At the same time, the roller 105 can reduce the friction between the top plate 103 and the soil and reduce the correction resistance.

[0042] Working principle: When the pillow seat 5 tilts, the electric push rod 81 at the tilting end is activated. At this time, the electric push rod 81 will push the push plate 82 to move. When the push plate 82 moves, it pushes the sleeve shaft 75 and bevel gear 74 at the tilting end to move linearly along the driven rod 73, so that bevel gear 74 at the tilting end meshes with bevel gear 710. Then, the motor 712 is started to drive the drive shaft 713 and gear 714 to rotate. With the meshing of the two gears 714, the driven rod 73 drives bevel gear 74 to rotate. Under the meshing action of bevel gear 74 and bevel gear 710, bevel gear 710 drives the threaded rod 77 to rotate and connect with the sleeve rod 78 threadedly. This causes the sleeve rod 78 to drive the base 79 to move down, supporting the tilting end. At the same time, the measurement can be made by a level until the pillow seat 5 is in a horizontal position.

[0043] When the tunneling machine 1 is working, the hydraulic cylinder 2 94 is activated to push the mounting plate 95 down. Under the action of the connecting piece 96, the connecting plate 92 is pushed to drive the insertion rod 93 down, so that the insertion rod 93 is inserted into the ground, thus preventing the pillow seat 5 from being displaced when the hydraulic cylinder 1 6 pushes the tunneling machine 1 forward.

[0044] When the tunneling machine 1 deviates, the hydraulic cylinder 3 102 on the same side as the deviated position is activated. At this time, under the action of the hydraulic cylinder 3 102, the top plate 103 will be pushed to contact the outer soil, and at the same time, the tunneling machine 1 will be provided with a thrust opposite to the deviated position, thereby correcting the deviation of the tunneling machine 1. At the same time, the roller 105 can reduce the friction between the top plate 103 and the soil, and reduce the resistance to correction.

[0045] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0046] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A balancing device for a slurry-balanced pipe jacking machine, comprising a tunneling machine (1), wherein a cutterhead assembly (2) is installed inside the tunneling machine (1), a slurry conveyor (3) is installed inside the tunneling machine (1) on the right side of the cutterhead assembly (2), a pipe (4) is installed on the right side of the tunneling machine (1), a bolster (5) is installed on the right side of the pipe (4), and a plurality of hydraulic cylinders (6) are installed on the upper end of the bolster (5), characterized in that: The top of the pillow (5) is provided with a leveling device, the top of the pillow (5) is provided with a fixing device, and the tunneling machine (1) is provided with a deviation correction device. The leveling device includes a housing (71), which is fixedly installed on the top of the pillow seat (5). Fixing brackets (72) are fixedly installed on the left and right sides of the housing (71). Driven rods (73) are rotatably connected inside the two fixing brackets (72). Bevel gears (74) are slidably connected to the front and rear ends of the driven rods (73). A sleeve shaft (75) is fixedly installed on the adjacent side of the two bevel gears (74). Multiple supports (76) are fixedly installed around the top of the pillow seat (5). A threaded rod (77) is rotatably connected to the upper end of each support (76). A sleeve rod (78) is threaded to the outer side of the lower end of the threaded rod (77). A base (79) is fixedly installed at the bottom of the sleeve rod (78). A bevel gear (710) is fixedly installed on the outer side of the upper end of the threaded rod (77). A support seat (711) is fixedly installed on the left and right sides of the top of the pillow seat (5) between the front and rear supports (76). A motor (712) is fixedly installed on the top of the support seat (711). A drive shaft (713) is fixedly installed at the output end of the motor (712). A gear (714) is fixedly installed on the outer side of the drive shaft (713) and the driven rod (73). The sleeve rod (78) has an internal thread inside, and a protrusion is provided on the outside of the sleeve rod (78). The pillow seat (5) has a groove that matches the protrusion at the connection between the sleeve rod (78). A limiting groove is provided on the outside of the driven rod (73), and a limiting block is provided inside the sleeve shaft (75). The limiting block is slidably connected to the inner wall of the limiting groove. When the pillow seat (5) tilts, the sleeve shaft (75) at the tilted end is pushed to drive the first bevel gear (74) to move along the driven rod (73), so that the first bevel gear (74) at the tilted end meshes with the second bevel gear (710), and the motor (712) provides power to make the threaded rod (77) and the sleeve rod (78) threadedly connected, thereby making the base (79) move up and down to realize the horizontal adjustment of the pillow seat (5). The leveling device also includes an electric push rod (81), which is fixedly installed on the front and rear sides inside the support base (711). The output end of the electric push rod (81) is fixedly installed with a push plate (82), and the upper end of the push plate (82) is rotatably connected to the inside of the sleeve shaft (75). The fixing device includes a limiting rod (91), which is fixedly installed at both ends inside the box (71). A connecting plate (92) is slidably connected to the outside of the limiting rod (91). Multiple insert rods (93) are fixedly installed at the bottom of the connecting plate (92). A hydraulic cylinder two (94) is fixedly installed at the top of the box (71). An installation plate (95) is fixedly installed at the output end of the hydraulic cylinder two (94). Connecting pieces (96) are rotatably installed at the left and right ends of the installation plate (95). The correction device includes a fixed plate (101), which is fixedly installed inside the tunneling machine (1). Hydraulic cylinders (102) are fixedly installed around the outside of the fixed plate (101). A top plate (103) is fixedly installed at the output end of the hydraulic cylinders (102). Support rods (104) are equidistantly installed inside the top plate (103). Rollers (105) are equidistantly rotatably connected to the outside of the support rods (104).

2. The balancing device for a slurry-balanced pipe jacking machine according to claim 1, characterized in that: The sleeve shaft (75) has an annular groove on the side away from the bevel gear (74), and the upper end of the push plate (82) is rotatably connected to the annular groove.

3. The balancing device for a slurry-balanced pipe jacking machine according to claim 1, characterized in that: The end of the connector (96) away from the mounting plate (95) is rotatably connected to the top of the connecting plate (92), and the lower end of the insert (93) penetrates the box body (71).

4. A balancing device for a slurry-balanced pipe jacking machine according to claim 1, characterized in that: The number of the correction devices is four, which are distributed at equal angles inside the tunneling machine (1).

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