Device and method for repairing deformation of shield tail of shield tunneling machine

Abstract

The invention discloses a shield tunneling machine shield tail deformation repairing device and method, and relates to the technical field of underground engineering. The shield tunneling machine shield tail deformation repairing device comprises a device body, a repairing mechanism and a fixing mechanism, the exterior of the repairing mechanism is connected with a repairing rod, the repairing rod is hinged to a supporting rod, the repairing mechanism is provided with a rotating shaft and a first driving motor, the rotating shaft is in threaded connection with a sliding sleeve, and the sliding sleeve is hinged to the supporting rod; the fixing mechanism comprises a U-shaped clamp, the U-shaped clamp is connected with spokes, the spokes are connected with a driving piece, the driving piece is connected with the device body, and the first driving motor and the driving piece work cooperatively to repair deformation. According to the repairing method, the shield tunneling machine shield tail deformation repairing device is adopted for repairing. The first driving motor and the driving part synchronously act, the repairing rod is synchronously driven to gradually open, the repairing rod applies thrust to the inwards-sunken position of the shield tail, the sunken position is outwards pushed, and the beneficial effects that the repairing efficiency is high, and the surface quality of the shield tail is protected are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of underground engineering, and particularly relates to a shield tail deformation repair device and a repair method for a shield tunneling machine. Background Technique

[0002] With the demand for urban construction, there are more and more underground tunnel engineering projects, so the utilization rate of the shield tunneling method has been greatly improved. However, after the shield tunneling method is completed, some shield tails are affected by factors such as bedrock protrusions and boulder formations in the geology, resulting in local depressions in the shield tail, which will cause the shield tunneling machine to be unable to participate in the next tunneling normally, posing a huge potential safety hazard.

[0003] At present, during the process of repairing the deformation of the shield tail of the shield tunneling machine on the ground, it is necessary to weld brackets, install chain hoists, jacks and other equipment on the old shield tail, place the jacks on the brackets, and use the jacks to push the depressed parts outwards. However, there are often more than one depression in the shield tail, which requires installing multiple brackets to meet the need of supporting the jacks. The time spent on repairing the shield tail is relatively long. At the same time, after the repair, welding slag and weld seams are left on the inner wall of the shield tail, affecting the surface quality of the shield tail. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the existing shield tail repair technology takes a long time and will affect the quality of the shield tail. The purpose is to provide a shield tail deformation repair device and a repair method for a shield tunneling machine. By adopting corresponding technical solutions, it has the beneficial effects of high repair efficiency and protecting the surface quality of the shield tail.

[0005] The present invention is achieved by the following technical solutions: In a first aspect, the present invention provides a shield tail deformation repair device for a shield tunneling machine, which includes a device main body. One end of the device main body is rotatably provided with a repair mechanism, and the other end of the device main body is provided with a fixing mechanism. A plurality of evenly distributed repair rods are rotatably connected to the outside of the repair mechanism. The repair rods are hinged with support rods. A rotating shaft is arranged inside the repair mechanism. The repair mechanism is provided with a first driving motor for driving the rotating shaft. The rotating shaft is threadedly connected with a sliding sleeve, and the sliding sleeve is hinged with the end of the support rod far away from the repair rod. The fixing mechanism includes a U-shaped clamp connected to the edge of the shield tail. The U-shaped clamp is connected with spokes. A plurality of the spokes are connected with a driving member, and the driving member is connected with the device main body. The first driving motor and the driving member work together to repair the deformation.

[0006] Further, in the present invention, the end of the repair rod far away from the repair mechanism is hinged with a triangular support foot, and both ends of the triangular support foot are upturned.

[0007] Further, in the present invention, a first bearing is provided inside the repair mechanism, the first bearing is connected to the rotating shaft, and the first driving motor is drivingly connected to the left end of the rotating shaft.

[0008] Further, in the present invention, a rotating cylinder is provided on the right side of the repair mechanism, an installation chamber for accommodating the rotating cylinder is provided on the left side of the device body, and a second bearing for connecting the rotating cylinder is provided in the installation chamber.

[0009] Further, in the present invention, a second driving motor is provided on the device body, a toothed ring is sleeved on the rotating cylinder, the second driving motor is provided with a sprocket and a chain, and the chain is connected to the toothed ring.

[0010] Further, in the present invention, a speed reducer is connected to both the first driving motor and the second driving motor.

[0011] Further, in the present invention, the driving member is configured as a pull rope, a winch connected to the pull rope is provided on the device body, the pull rope is configured as a steel cable, and the pull rope remains horizontal when the winch winds up.

[0012] Further, in the present invention, the driving member is configured as a hydraulic jacking rod, a counterweight is provided on the device body, and the hydraulic jacking rod is connected to the counterweight.

[0013] Further, in the present invention, electric control telescopic legs are provided at the bottom of the device body, and walking wheels are provided at the bottom of the electric control telescopic legs.

[0014] In a second aspect, the present invention also provides a repair method, which uses a shield tail deformation repair device of a shield machine to round the concave part of the shield tail, including the following steps: The shield tail deformation repair device of the shield machine first moves to a suitable position inside the shield tail, inserts four U-shaped clamps into the edge of the shield tail, then rotates the repair mechanism to align the repair rod with the part to be repaired, and then the first driving motor drives the rotating shaft to gradually open the repair rod until the repair rod and the inner wall of the shield tail are stably supported. Then, the first driving motor and the driving member act synchronously to synchronously drive the repair rod to gradually open, so that the repair rod applies a thrust to the inwardly concave position of the shield tail, pushes the concave part outward, and promotes the repair of the concave part.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: The shield tail deformation repair device and repair method provided by the present invention include three parts: a device main body, a repair mechanism, and a fixing mechanism. Before repair, first rotate the repair mechanism to align the repair rod with the part to be repaired, and then the first driving motor drives the rotating shaft to gradually open the repair rod. When the repair rod abuts against the depression to be repaired, the driving part drives the device main body to move, cooperate with the repair mechanism to further open, and then push the depression outwards to achieve the repair effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts. In the drawings: Figure 1 It is a schematic diagram of the left end of the shield tail deformation repair device of the present invention; Figure 2 It is an internal schematic diagram of a shield tail deformation repair device of the present invention; Figure 3 It is an internal schematic diagram of another shield tail deformation repair device of the present invention; Figure 4 It is a schematic diagram of the right end of the shield tail deformation repair device of the present invention.

[0017] Reference numerals in the drawings and corresponding component names: 1 - device main body, 101 - installation chamber, 102 - second bearing, 103 - second driving motor, 104 - chain, 2 - repair mechanism, 201 - rotating shaft, 202 - first driving motor, 203 - sliding sleeve, 204 - first bearing, 205 - rotating chamber, 3 - fixing mechanism, 301 - U-shaped clamp, 302 - spoke, 4 - repair rod, 401 - triangular support foot, 5 - support rod, 6 - driving part, 7 - rotating cylinder, 701 - tooth ring, 8 - electric control telescopic support leg, 801 - walking wheel, 9 - winch, 10 - counterweight. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order to make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in combination with the embodiments and the drawings. The illustrative embodiments and descriptions thereof of the present invention are only used to explain the present invention and do not limit the present invention. The following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the present invention to be protected, but only represents the selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0019] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In the description of the embodiments of the present invention, it should also be noted that unless otherwise clearly specified and limited, if the terms "set", "installed", "connected" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] Embodiment 1 Embodiment 1 of the present invention provides a shield tail deformation repair device for a shield machine, which is combined with Figures 1 to 4 as shown, and the specific structure is described as follows.

[0021] Combined with Figure 1 and Figure 2 as shown, the shield tail deformation repair device of Embodiment 1 mainly includes three parts: a device main body 1, a repair mechanism 2, and a fixing mechanism 3. Among them, the device main body 1 is used to provide an installation position for other components, the fixing mechanism 3 is used to keep fixed with the shield tail, and the repair mechanism 2 is used to repair the concave part of the shield tail. The shield tail deformation repair device mainly repairs the deformed shield tail on the ground to ensure that the shield tail can normally participate in the next tunneling.

[0022] Furthermore, in this embodiment, the device main body 1 has a cuboid-shaped outer shell. Four electric control telescopic legs 8 are installed at the bottom of the device main body 1, and traveling wheels 801 are installed at the bottom of the electric control telescopic legs 8, which is convenient for the movement of the shield tail deformation repair device of the shield machine, and the use effect is good.

[0023] In some implementation manners of this embodiment, combined with Figure 2 as shown, the repair mechanism 2 is installed on the left side of the device main body 1. The repair mechanism 2 has a cylindrical-shaped outer shell. Four repair rods 4 are installed on the outer surface of the repair mechanism 2, and the four repair rods 4 are evenly spaced. The repair rods 4 are hingedly connected to the hinge supports on the outer wall of the repair mechanism 2, so that the repair rods 4 can rotate around the repair mechanism 2.

[0024] It should be noted that a triangular support foot 401 is hinged at one end of the repair rod 4 away from the repair mechanism 2, and both ends of the triangular support foot 401 are upturned. The triangular support foot 401 can stably abut against the surface of the shield tail and has a good supporting effect.

[0025] Furthermore, combined with Figure 1 and Figure 2As shown in the figure, a horizontal rotating chamber 205 is provided inside the repair mechanism 2, and four through grooves communicating with the rotating chamber 205 are provided in the repair mechanism 2. The positions of the through grooves correspond to the repair rods 4. A first bearing 204 and a rotating shaft 201 are installed in the rotating chamber 205. The two first bearings 204 are connected to both ends of the rotating shaft 201, and the first bearing 204 supports the smooth rotation of the rotating shaft 201.

[0026] Furthermore, in combination with Figure 2 As shown in the figure, the rotating shaft 201 is a screw rod, and a sliding sleeve 203 is sleeved on the rotating shaft 201. The sliding sleeve 203 is threadedly connected to the rotating shaft 201. And the sliding sleeve 203 is connected to four support rods 5 by means of hinge. The support rods 5 pass through the through grooves and are hinged to the repair rods 4. After the rotating shaft 201 rotates, it can control the sliding sleeve 203 to move horizontally left and right on the rotating shaft 201, and then control the repair rods 4 to open or converge.

[0027] In this embodiment, a first driving motor 202 is installed on the repair mechanism 2. The first driving motor 202 is configured with a reducer, and the reducer and the rotating shaft 201 are driven by gears. The power of the first driving motor 202 outputs an appropriate rotational speed and torque after passing through the reducer, and easily drives the rotating shaft 201 to rotate, and then controls the repair rods 4 to open or converge.

[0028] In this embodiment, in combination with Figure 2 As shown in the figure, in order to drive the repair mechanism 2 to rotate, a second driving motor 103 is installed on the device main body 1. A rotating cylinder 7 is installed at the right end of the repair mechanism 2, and the left end of the rotating cylinder 7 has a flange connected to the repair mechanism 2. An installation chamber 101 is provided at the left end of the device main body 1, and a second bearing 102 is installed in the installation chamber 101. The second bearing 102 is connected to the rotating cylinder 7, and the second bearing 102 is used to support the rotation of the rotating cylinder 7. A toothed ring 701 is fixedly sleeved outside the rotating cylinder 7. The second driving motor 103 is connected to a reducer, and a chain 104 is sleeved on the output shaft of the reducer. The chain 104 is connected to the toothed ring 701. After the second driving motor 103 works, it drives the rotating cylinder 7 to rotate through the chain 104, and then drives the repair mechanism 2 to rotate, so that the repair rods 4 are in a suitable support position.

[0029] In some embodiments of this embodiment, in combination with Figure 2 and Figure 4As shown in the figure, the fixing mechanism 3 includes a U-shaped clamp 301 connected to the edge of the shield tail. The U-shaped clamp 301 can clamp the edge of the shield tail. In this embodiment, four U-shaped clamps 301 are installed. The U-shaped clamp 301 is connected with spokes 302 facing the middle. A support circular plate is installed in the middle, and the support circular plate is fixedly connected with the four spokes 302. In this embodiment, the driving member 6 uses a pull rope (the pull rope uses a steel cable). An installation platform is installed at the right end of the device main body 1, and a winch 9 is arranged on the installation platform. One end of the pull rope is fixedly connected with the support circular plate, and the other end of the pull rope is wound around the drum of the winch 9. When the winch 9 drives the drum to rotate, the pull rope can be tightened and wound, driving the device main body 1 to move to the right. When the winch 9 winds up the rope, the pull rope remains horizontal to ensure that the device main body 1 is horizontally stressed.

[0030] The working principle of the shield tail deformation repair device of Embodiment 1 is as follows: The shield tail deformation repair device provided in Embodiment 1 first moves to a suitable position inside the shield tail, aligns the four U-shaped clamps 301 with the edge of the shield tail and clips them in, and then connects the pull rope with the winch 9 and the support circular plate. Before repair, first rotate the repair mechanism 2 to align the repair rod 4 with the part to be repaired, and then the first drive motor 202 drives the rotating shaft 201 to gradually open the repair rod 4 until the repair rod 4 and the inner wall of the shield tail are stably supported. Then, the first drive motor 202 and the driving member 6 act synchronously. The first drive motor 202 drives the rotating shaft 201 to move the sliding sleeve 203 to the left, and the winch 9 winds up the pull rope to move the device main body 1 to the right. The leftward movement of the sliding sleeve 203 drives the repair rod 4 to gradually open, and the rightward movement of the device main body 1 also drives the repair rod 4 to gradually open, so that the repair rod 4 applies a thrust to the inwardly concave position of the shield tail, pushing the concave part outward to promote the repair of the depression.

[0031] Embodiment 2 The shield tail deformation repair device of this embodiment is further optimized on the basis of Embodiment 1, and the specific structure is described as follows.

[0032] Combined with Figure 2 and Figure 3 As shown, the driving member 6 and the driving method in the shield tail deformation repair device of this embodiment are different from those in the shield tail deformation repair device of Embodiment 1.

[0033] In this embodiment, combined with Figure 3 As shown, after the U-shaped clamp 301 is clipped into the edge of the shield tail, a fixing method needs to be adopted. For example, the U-shaped clamp 301 and the edge of the shield tail are welded and fixed. Or bolts passing through the edge of the shield tail are provided on the U-shaped clamp 301, and holes for the bolts to pass through are opened on the edge of the shield tail. After the depression repair is completed, the holes can be filled and repaired.

[0034] Then, the driving member 6 is a hydraulic jacking rod. The base of the hydraulic jacking rod is connected to the supporting circular plate, and a counterweight 10 is arranged at the right end of the device main body 1. The telescopic end of the hydraulic jacking rod abuts against the counterweight 10.

[0035] The working principle of the shield tail deformation repair device of Embodiment 2 is as follows: The shield tail deformation repair device provided in Embodiment 2 first moves to a suitable position inside the shield tail, aligns the four U-shaped clamps 301 with the shield tail edge and clips them in, and fixes them by welding or bolts. Then, the hydraulic jacking rod is installed on the supporting circular plate. As shown in Figure 3 , before repair, first rotate the repair mechanism 2 to align the repair rod 4 with the part to be repaired. Then, the first driving motor 202 drives the rotating shaft 201 to gradually open the repair rod 4 until the repair rod 4 stably supports against the inner wall of the shield tail. Then, the first driving motor 202 and the driving member 6 act synchronously. The first driving motor 202 drives the rotating shaft 201 to move the sliding sleeve 203 to the right, and the hydraulic jacking rod extends to push the device main body 1 to move to the left. The movement of the sliding sleeve 203 to the right causes the repair rod 4 to gradually open, and the movement of the device main body 1 to the left also causes the repair rod 4 to gradually open, so that the repair rod 4 applies a thrust to the inwardly concave position of the shield tail to push the concave part outward to promote the repair of the concave.

[0036] Embodiment 3 This embodiment provides a method for repairing the shield tail, which uses the shield tail deformation repair device in Embodiment 1 or Embodiment 2 for repair. The shield tail deformation repair device first moves to a suitable position inside the shield tail, aligns the four U-shaped clamps 301 with the shield tail edge and clips them in. Then, rotate the repair mechanism 2 to align the repair rod 4 with the part to be repaired. Then, the first driving motor 202 drives the rotating shaft 201 to gradually open the repair rod 4 until the repair rod 4 stably supports against the inner wall of the shield tail. Then, the first driving motor 202 and the driving member 6 act synchronously to drive the repair rod 4 to gradually open, so that the repair rod 4 applies a thrust to the inwardly concave position of the shield tail to push the concave part outward to promote the repair of the concave.

[0037] In summary, the present invention provides a shield tail deformation repair device for a shield machine, which includes a device body 1, a repair mechanism 2 is rotatably provided at one end of the device body 1, a fixing mechanism 3 is provided at the other end of the device body 1, a plurality of evenly distributed repair rods 4 are rotatably connected to the outside of the repair mechanism 2, the repair rod 4 is hinged to a support rod 5, a rotating shaft 201 is provided inside the repair mechanism 2, the repair mechanism 2 is provided with a first drive motor 202 that drives the rotating shaft 201, the rotating shaft 201 is threadedly connected to a sliding sleeve 203, the sliding sleeve 203 is hinged to one end of the support rod 5 away from the repair rod 4; the fixing mechanism 3 includes a U-shaped card 301 connected to the edge of the shield tail, the U-shaped card 301 is connected to a spoke 302, a plurality of spokes 302 are connected to a driving member 6, the driving member 6 is connected to the device body 1, and the first drive motor 202 and the driving member 6 work together to repair the deformation. A triangular support leg 401 is hinged to one end of the repair rod 4 away from the repair mechanism 2, and both ends of the triangular support leg 401 are upturned. A first bearing 204 is provided inside the repair mechanism 2, and the first bearing 204 is connected to the rotating shaft 201, and the first drive motor 202 is connected to the left end of the rotating shaft 201. A rotating cylinder 7 is provided on the right side of the repair mechanism 2, and a rotating chamber 205 for accommodating the rotating cylinder 7 is provided on the left side of the device body 1, and the rotating chamber 205 is provided with a second bearing 102 connected to the rotating cylinder 7. The device body 1 is provided with a second drive motor 103, and the rotating cylinder 7 is sleeved with a gear ring 701. The second drive motor 103 is provided with a sprocket and a chain 104, and the chain 104 is connected to the gear ring 701. The first drive motor 202 and the second drive motor 103 are both connected to a reducer. The driving member 6 is configured as a pull rope, and the device body 1 is provided with a winch 9 connected to the pull rope. The pull rope is configured as a steel cable, and the pull rope is kept horizontal when the winch 9 is wound. The driving member 6 is configured as a hydraulic jacking rod, and the device body 1 is provided with a counterweight 10, and the hydraulic jacking rod is connected to the counterweight 10. The bottom of the device body 1 is provided with an electrically controlled telescopic leg 8, and the bottom of the electrically controlled telescopic leg 8 is provided with a running wheel 801. The present invention also provides a repair method, which uses a shield tail deformation repair device for a shield machine to round off the concave part of the shield tail.

[0038] Therefore, the shield tail deformation repair device and repair method of the shield machine of the present invention have the beneficial effects of high repair efficiency and protection of the surface quality of the shield tail.

[0039] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A shield tail deformation repair device for a shield machine, characterized in that, The device comprises a device body (1), one end of which is rotatably provided with a repair mechanism (2), and the other end of which is provided with a fixing mechanism (3). The repair mechanism (2) is rotatably connected to a plurality of evenly distributed repair rods (4) on the outside, the repair rods (4) are hingedly connected to support rods (5), a rotating shaft (201) is provided inside the repair mechanism (2), the repair mechanism (2) is provided with a first drive motor (202) for driving the rotating shaft (201), the rotating shaft (201) is threadedly connected to a sliding sleeve (203), and the sliding sleeve (203) is hingedly connected to an end of the support rod (5) away from the repair rod (4); The fixing mechanism (3) comprises a U-shaped card (301) connected to the edge of the shield tail, the U-shaped card (301) is connected to a spoke (302), a plurality of the spokes (302) are connected to a driving member (6), and the driving member (6) is connected to the device body (1). The first drive motor (202) and the drive member (6) work together to repair the deformation.

2. The shield tail deformation repair device of the shield machine according to claim 1, characterized in that, One end of the repair rod (4) away from the repair mechanism (2) is hingedly connected to a triangular support foot (401), and both ends of the triangular support foot (401) are upwardly tilted.

3. The shield tail deformation repair device of the shield machine according to claim 1, characterized in that, A first bearing (204) is arranged inside the repair mechanism (2); the first bearing (204) is connected to the rotating shaft (201); and the first drive motor (202) is drivingly connected to the left end of the rotating shaft (201).

4. The shield tail deformation repair device of the shield machine according to claim 1, characterized in that A rotating cylinder (7) is arranged on the right side of the repair mechanism (2), and an installation chamber (101) for accommodating the rotating cylinder (7) is arranged on the left side of the device body (1), and the installation chamber (101) is provided with a second bearing (102) connected to the rotating cylinder (7).

5. The shield tail deformation repair device of the shield machine according to claim 4, characterized in that The device body (1) is provided with a second drive motor (103), the rotating cylinder (7) is sleeved with a gear ring (701), the second drive motor (103) is provided with a sprocket and a chain (104), and the chain (104) is connected to the gear ring (701).

6. The shield tail deformation repair device of the shield machine according to claim 5, wherein The first drive motor (202) and the second drive motor (103) are both connected to a reducer.

7. The shield tail deformation repair device of the shield machine according to claim 1, characterized in that The driving member (6) is configured as a pull rope, the device body (1) is provided with a winch (9) connected to the pull rope, the pull rope is configured as a steel cable, and the pull rope remains horizontal when the winch (9) is reeled in.

8. The shield tail deformation repair device of the shield machine according to claim 1, characterized in that, The driving member (6) is configured as a hydraulic jacking rod, the device body (1) is provided with a counterweight block (10), and the hydraulic jacking rod is connected to the counterweight block (10).

9. The shield tail deformation repair device for a shield machine according to any one of claims 1-8, characterized in that, An electrically controlled telescopic leg (8) is provided at the bottom of the device body (1), and a walking wheel (801) is provided at the bottom of the electrically controlled telescopic leg (8).

10. A repair method, characterized in that, The shield tail deformation repair device of the shield machine as claimed in claim 1 is used to round the concave part of the shield tail, including the following method: The shield tail deformation repair device of the shield machine first moves to a suitable position inside the shield tail, inserts the four U-shaped clamps (301) into the shield tail edge, then rotates the repair mechanism (2) to align the repair rod (4) with the part to be repaired, then the first driving motor (202) drives the rotating shaft (201) to gradually open the repair rod (4) until the repair rod (4) and the inner wall of the shield tail are stably supported. Then, the first driving motor (202) and the driving part (6) act synchronously to drive the repair rod (4) to gradually open, so that the repair rod (4) applies a thrust to the inwardly sunken position of the shield tail, pushes the sunken part outwards, and promotes the repair of the depression.

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