Tunnel repair operation device and tunnel repair operation group

Abstract

The utility model belongs to the technical field of tunnel supporting, and particularly provides a tunnel repairing operation device and a tunnel repairing operation group. The tunnel repairing operation device comprises a base and a platform base installed on the base through a rotating mechanism, the rotating axis of the rotating mechanism extends in the vertical direction, the platform base is provided with a moving seat and a channel for the moving seat to move, the moving seat is connected with an arm frame system, and the front end of the arm frame system is used for installing an operation tool; the rotating stroke of the platform base is provided with a storage station moving to the position above the base and further provided with an unfolding station rotating out of the base so that the movable base can move along the platform base to adjust the distance between the boom system and the inner wall of the tunnel. The tunnel repair operation group comprises the tunnel repair operation device. The distance between the whole cantilever crane system and the inner wall of the tunnel can be adjusted, an overlong and complex cantilever crane system does not need to be arranged, and the stability of a tunnel repairing operation device can be better guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel support, in particular to a tunnel repair operation device and a tunnel repair operation group. Background Art

[0002] As the service life of existing railway tunnels increases, cracking, falling blocks, leakage and other defects will inevitably occur in the tunnel lining structure, and the repair and treatment of tunnel lining structure defects are imminent.

[0003] Tunnel repair generally includes processes such as roughening, drilling, anchoring / rebar planting, etc. Due to the influence of the train skylight period, the time for tunnel repair operations is short, which puts high demands on the efficiency of tunnel repair operations. The Chinese patent application with application publication number CN111894631A (publication date: 2020.11.06) discloses a tunnel disease remediation vehicle (marshaling), which includes a concrete treatment work vehicle, an anchoring / rebar planting work vehicle, a water flushing vehicle, etc. Each work vehicle can travel along the track of the existing tunnel and enter and exit the tunnel. The anchoring / rebar planting work vehicle includes a rock drilling work arm and a drill bit. The drill bit can move within a certain range to realize the automated drilling operation of tunnel repair. However, the movement range of the drill bit is limited. For double-track tunnels, each work vehicle can only travel along one side of the left and right double-track tracks, so it is difficult for the drill bit to cover the tunnel wall on the side farther away from the work vehicle, and the adaptability range is insufficient.

[0004] A Chinese patent with authorization announcement number CN217001889U (publication date: 2022.07.19) discloses a tunnel disease treatment and maintenance train set, which includes a working device vehicle, on which is provided an installation platform for installing a tunnel repair work device, on which is provided a sliding track and a mobile seat that travels along the sliding track, and the mobile seat can be connected to different multi-degree-of-freedom mechanical arms (arm systems), and the multi-degree-of-freedom mechanical arms include mechanical arms that can be slewed, pitched, vertically lifted, telescoped, and connected in multiple stages, and the front-end mechanical arms can be used to install work tools. Through the setting of the multi-degree-of-freedom mechanical arms, the work tools installed on the above-mentioned working device vehicle can achieve full coverage of the tunnel walls on both sides.

[0005] However, the moving seat of the above-mentioned working device vehicle only has the freedom to move forward and backward. At this time, when repairing the tunnel wall far away from the working device vehicle, this distant range is entirely covered by the rotation and extension length of the mechanical arm. The mechanical arm has a complex structure, and the long mechanical arm has insufficient stability in bearing force, resulting in poor reliability for long-term use. Utility Model Content

[0006] The purpose of the utility model is to provide a tunnel repair work device to solve the technical problem that the tunnel repair work device in the prior art needs to be equipped with a long and complex arm system to meet the repair work of the tunnel walls on the left and right sides. The purpose of the utility model is also to provide a tunnel repair work group to solve the same technical problem.

[0007] To achieve the above-mentioned purpose, the technical solution of the tunnel repair operation device provided by the utility model is:

[0008] A tunnel repair work device comprises a base and a platform base installed on the base through a slewing mechanism, the rotation axis of the slewing mechanism extends in the vertical direction, a moving seat and a channel for the moving seat to move are arranged on the platform base, the moving seat is connected to a boom system, and the front end of the boom system is used to install a work tool; the platform base has a storage station that moves to the top of the base during its rotation stroke, and also has an expansion station that rotates out the base so that the moving seat can move along the platform base to adjust the distance between the boom system and the inner wall of the tunnel.

[0009] The beneficial effect is: the utility model pioneers a tunnel repair work device that can flexibly move the work device to the left and right positions. When in use, different arm systems can be installed on the moving seat according to the working conditions, and the moving seat can move along the platform base to drive the arm to move. The platform base for the moving seat in the utility model can be rotated by a slewing mechanism, so that the platform base can be rotated from the storage station to the deployment station, and the moving seat can also drive the arm system to move toward the inner wall of the tunnel to cover a larger tunnel range. When the platform base of the utility model is in the storage station, it can meet the normal entry and exit of the tunnel for the tunnel repair work device. When it is in the deployment station, it can adjust the distance of the arm system relative to the inner wall of the tunnel to meet the repair work of the tunnels on the left and right sides. Compared with the prior art, the utility model can adjust the distance of the entire arm system relative to the inner wall of the tunnel, and there is no need to set up an overly long and complicated arm system, which can better ensure the stability of the tunnel repair work device.

[0010] As a further improvement, the platform base is also connected to support legs that can be movably retracted.

[0011] The beneficial effect is that after the platform base is rotated to the left or right direction, the support legs can support the bottom of the tunnel to ensure the stability of the platform base, and the support legs can be retracted, while ensuring the supporting function, it will not affect the normal rotation of the platform base.

[0012] As a further improvement, the supporting legs are hinged to the platform base.

[0013] The beneficial effect is that the hinged connection structure is relatively simple and has low implementation cost.

[0014] As a further improvement, a rotation-stopping and limiting structure is provided between the supporting legs and the platform base for limiting the supporting legs after they are rotated into position.

[0015] The beneficial effect is that while the supporting legs play a supporting role, the anti-rotation limit structure can ensure that the supporting legs can be stably in the supporting position, avoiding accidental retraction of the supporting legs.

[0016] As a further improvement, a swing driving device is provided between the supporting leg and the platform base for driving the supporting leg to swing around the hinge axis.

[0017] The beneficial effect is that under the action of the swing driving device, the supporting legs can be automatically opened and retracted, and the efficiency is relatively high.

[0018] As a further improvement, the supporting legs are telescopic supporting legs with adjustable support height.

[0019] The beneficial effect is that the height of the supporting legs can be adaptively adjusted according to the conditions of the supporting foundation at the bottom of the tunnel, so as to support the platform base when different supporting foundations are met.

[0020] As a further improvement, the slewing mechanism is connected to one end of the platform base.

[0021] The beneficial effect is that the length of the platform base is better utilized, that is, the rotation radius is longer, so that the platform base can cover a farther area.

[0022] As a further improvement, the tunnel repair work device also includes a frame, the frame has wheels, and the base is fixed on the frame.

[0023] The beneficial effect is that the corresponding connection structure for installing the rotating mechanism can be processed on the base, which is also convenient for configuring other auxiliary structures. There is no need to make too many modifications to the frame, and the frame can be standardized, which is more cost-effective.

[0024] As a further improvement, a supporting structure for supporting the end of the platform base is provided on the base.

[0025] The beneficial effect is that when the base is in the storage position, the platform base can still be stably supported, and the operation stability is better.

[0026] In order to achieve the above-mentioned purpose, the technical solution of the tunnel repair operation group provided by the utility model is:

[0027] A tunnel repair work group includes a tractor connected to a tunnel repair work device, the tunnel repair work device includes a base and a platform base installed on the base through a slewing mechanism, the rotation axis of the slewing mechanism extends in a vertical direction, a moving seat and a channel for the moving seat to move are provided on the platform base, the moving seat is connected to a boom system, and the front end of the boom system is used to install work tools; the platform base has a storage station that moves to the top of the base during its rotation stroke, and also has an expansion station that rotates out the base so that the moving seat can move along the platform base to adjust the distance between the boom system and the inner wall of the tunnel.

[0028] The beneficial effect is that the utility model improves the existing tunnel repair work grouping in the prior art. When in use, different arm systems can be installed on the moving seat according to the working conditions, and the moving seat can move along the platform base to drive the arm to move. The platform base for the moving seat in the utility model can be rotated by a slewing mechanism, so that the platform base can be rotated from the storage station to the deployment station, and the moving seat can also drive the arm system to move toward the inner wall of the tunnel to cover a larger tunnel range. When the platform base of the utility model is in the storage station, it can meet the normal entry and exit of the tunnel for the tunnel repair work device. When it is in the deployment station, it can adjust the distance of the arm system relative to the inner wall of the tunnel to meet the repair work of the tunnels on the left and right sides. Compared with the prior art, the utility model can adjust the distance of the overall arm system relative to the inner wall of the tunnel, and there is no need to set up an overly long and complicated arm system, which can better ensure the stability of the tunnel repair work device.

[0029] As a further improvement, the platform base is also connected to support legs that can be movably retracted.

[0030] The beneficial effect is that after the platform base is rotated to the left or right direction, the support legs can support the bottom of the tunnel to ensure the stability of the platform base, and the support legs can be retracted, while ensuring the supporting function, it will not affect the normal rotation of the platform base.

[0031] As a further improvement, the supporting legs are hinged to the platform base.

[0032] The beneficial effect is that the hinged connection structure is relatively simple and has low implementation cost.

[0033] As a further improvement, a rotation-stopping and limiting structure is provided between the supporting legs and the platform base for limiting the supporting legs after they are rotated into position.

[0034] The beneficial effect is that while the supporting legs play a supporting role, the anti-rotation limit structure can ensure that the supporting legs can be stably in the supporting position, avoiding accidental retraction of the supporting legs.

[0035] As a further improvement, a swing driving device is provided between the supporting leg and the platform base for driving the supporting leg to swing around the hinge axis.

[0036] The beneficial effect is that under the action of the swing driving device, the supporting legs can be automatically opened and retracted, and the efficiency is relatively high.

[0037] As a further improvement, the supporting legs are telescopic supporting legs with adjustable support height.

[0038] The beneficial effect is that the height of the supporting legs can be adaptively adjusted according to the conditions of the supporting foundation at the bottom of the tunnel, so as to support the platform base when different supporting foundations are met.

[0039] As a further improvement, the slewing mechanism is connected to one end of the platform base.

[0040] The beneficial effect is that the length of the platform base is better utilized, that is, the rotation radius is longer, so that the platform base can cover a farther area.

[0041] As a further improvement, the tunnel repair work device also includes a frame, the frame has wheels, and the base is fixed on the frame.

[0042] The beneficial effect is that the corresponding connection structure for installing the rotating mechanism can be processed on the base, which is also convenient for configuring other auxiliary structures. There is no need to make too many modifications to the frame, and the frame can be standardized, which is more cost-effective.

[0043] As a further improvement, a supporting structure for supporting the end of the platform base is provided on the base.

[0044] The beneficial effect is that when the base is in the storage position, the platform base can still be stably supported, and the operation stability is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a structural schematic diagram of an embodiment of a tunnel repair operation device in the utility model;

[0046] Figure 2 for Figure 1 A schematic diagram of the structure of the drilling assembly;

[0047] Figure 3 for Figure 1 Schematic diagram of the structure of the middle supporting leg;

[0048] Figure 4 A schematic diagram of one working state (near side) of the tunnel repair operation device of the present utility model;

[0049] Figure 5It is a schematic diagram of one working state (near side top) of an embodiment of the tunnel repair operation device of the utility model;

[0050] Figure 6 A schematic diagram of one working state (far side) of the tunnel repair operation device of the present utility model;

[0051] Figure 7 It is a schematic diagram of one working state (far top) of an embodiment of the tunnel repair operation device in the utility model.

[0052] Description of reference numerals:

[0053] 1. Frame; 2. Fixed seat; 3. Slewing mechanism; 4. Platform base; 5. Moving seat; 6. Boom slewing seat; 7. First pitch cylinder; 8. Basic arm; 9. Telescopic arm; 10. Second pitch cylinder; 11. Telescopic cylinder; 12. Drilling assembly; 13. Support block; 401. Track; 402. Support leg; 501. Moving seat body; 502. Travel wheel; 601. Boom slewing bearing; 602. Boom seat body; 4021. Hydraulic outrigger; 4022. Swing cylinder; 4023. Outrigger ear plate; 4024. Stop pin shaft; 4025. Base ear plate; 1201. Fixed bottom plate; 1202. Guide shaft; 1203. Propulsion cylinder; 1204. Drilling rig; 1205. Drilling rig mounting plate; 1206. Hole guide plate. DETAILED DESCRIPTION

[0054] The present invention is further described in detail below in conjunction with the embodiments.

[0055] In order to meet the needs of automatic repair work of the tunnel walls on the left and right sides of the existing operating railway, shorten the length of the boom system of the repair work device and simplify the structure of the boom system, the basic technical concept of the utility model provides a tunnel repair work device that can change the distance of the boom system relative to the inner wall of the tunnel.

[0056] Specific embodiment 1 of the tunnel repair operation device provided by the utility model:

[0057] The tunnel repair operation device provided in this embodiment includes a base and a platform base 4, the platform base 4 is installed on the base through a slewing mechanism 3, and a moving seat 5 is provided on the platform base 4. The structure of the platform base 4 can be a complete flat plate or a frame structure, and a track 401 for the moving seat 5 to move is arranged above it. The track 401 can play a stable limiting and supporting role for the movement of the moving seat 5, thereby ensuring the stability of the repair device during the repair operation. The specific structure of the track 401 is not limited, and can be a channel steel track, an I-shaped track, etc. The moving seat 5 includes a moving seat body 501 and a running wheel 502, and the running wheel 502 can roll along the track 401 with less friction resistance. In other embodiments, a slider can also be arranged on the moving seat body 501, and the slider can slide along the track, which is also a feasible movement form.

[0058] It can be understood by those skilled in the art that the slewing mechanism 3 here refers to a structure including a fixed body and a slewing body. The slewing body has a certain rotation axis, and the rotation axis extends in the vertical direction. The platform base 4 is connected to the slewing body, and the slewing body realizes its rotation relative to the base under the action of the slewing body.

[0059] This embodiment includes a vehicle frame 1, a running wheel is provided at the bottom of the vehicle frame 1, and the above-mentioned base is formed by a fixing seat 2. When performing tunnel repair work, the fixing seat 2 can be fixed on the vehicle frame 1. In addition, the slewing mechanism 3 can be a slewing bearing or a slewing plate with a central rotating shaft, and it only needs to be able to rotate under the action of manual or driving device.

[0060] The mobile seat 5 is equipped with a boom system, and the front end of the boom system can be used to install working tools. When in use, different boom systems and working tools can be flexibly selected according to the corresponding working conditions. In this embodiment, a reinforcement planting device is taken as an example. Before reinforcement planting, it is necessary to drill holes on the top of the tunnel. Specifically, the reinforcement planting device includes some basic boom systems and a drilling assembly 12. The mechanical boom structure includes a boom swivel seat 6 that can rotate. The boom swivel seat 6 can be installed on the mobile seat 5. Specifically, the boom swivel seat 6 includes a boom seat body 602 and a boom swivel bearing 601. Or the boom swivel seat 6 can also selectively use a rotating disk with a central rotating shaft. A basic arm 8 is hinged on the boom swivel seat 6, and a first pitching cylinder 7 that drives the basic arm 8 to pitch is connected between the basic arm 8 and the boom swivel seat 6. A telescopic arm 9 is hinged on the basic arm 8, and a second pitching cylinder 10 that drives the telescopic arm 9 to pitch is connected between the telescopic arm 9 and the basic arm 8. The telescopic arm 9 includes a fixed part and a telescopic part. A telescopic oil cylinder 11 is connected between the fixed part and the telescopic part for driving the telescopic movement of the telescopic part. A drilling assembly 12 is installed on the telescopic part of the telescopic arm 9.

[0061] When performing tunnel repair work in this embodiment, the platform base 4 is first located above the fixed base 2, i.e., the storage position, to ensure that the tunnel repair device meets the tunnel limit conditions. After reaching the position to be repaired, the movable base 5 can move forward and backward, driving the rebar planting device to move forward and backward, and cooperate with the pitch, extension and other actions of the boom system to achieve drilling operations at different axial positions of the tunnel. When it is necessary to repair a tunnel on the side far from the tunnel repair device, the platform base 4 can be rotated to move the platform base 4 out of the fixed base 2, such as Figure 4-7 As shown, at this time, the platform base 4 is in the unfolding position. After unfolding, the moving base 5 moves along the platform base 4, thereby driving the boom system to move toward the inner wall of the tunnel to realize the tunnel drilling operation.

[0062] Through the above analysis, it can be seen that the tunnel repair operation device in this embodiment realizes the movement of the arm relative to the left and right sides of the tunnel by setting a rotating platform base, thereby covering the complete tunnels on both sides. Compared with the prior art, in this embodiment, only some basic arm systems need to be arranged according to the operating characteristics of the repair device, and there is no need to configure a longer arm system, which can ensure the stability of the repair operation.

[0063] Regarding the installation position of the slewing mechanism 3 relative to the platform base 4, Figure 1 As shown, the present embodiment provides a connection method in which a slewing mechanism 3 is connected to the end of a platform base 4. In this case, the length of the platform base 4 can be better utilized as a rotation radius, which is more suitable for tunnels with double-track tracks. In addition, in order to ensure the stability of the platform base 4 in the storage state, a support structure for supporting the end of the platform base is also provided on the fixed seat 2. The support structure cooperates with the slewing mechanism 3 to provide stable support for the platform base 4 and ensure the stability of the mobile seat 5 when it moves back and forth. Specifically, the support structure in the present embodiment is a support block 13. Of course, the support structure can also be a frame structure. According to operational requirements, if the mobile seat 5 does not need to move relative to the platform base 4 in the storage state, the support structure may not be configured at this time, and the slewing mechanism 3 can provide support for the mobile seat.

[0064] Of course, for special tunnels, for example, when three-track tracks are arranged in the tunnel, the working vehicle can travel along the middle track. At this time, the slewing mechanism 3 can be arranged in the center position of the platform base 4.

[0065] In addition, if Figure 2As shown, the drilling assembly 12 includes a fixed base plate 1201, a guide shaft 1202, a propulsion cylinder 1203, a drilling rig 1204, a drilling rig mounting plate 1205, and a hole position guide plate 1206. The fixed base plate 1201 is used to fix the drilling rig assembly 12 on the telescopic arm 9, the guide shaft 1202 is mounted on the fixed base plate 1201, the hole position guide plate 1206 is fixed on the guide shaft, the drilling rig mounting plate 1205 is guided and mounted on the guide shaft 1202, and the two ends of the propulsion cylinder 1203 are respectively connected between the drilling rig mounting plate 1205 and the fixed base plate 1201, and are used to push the drilling rig mounting plate 1205 forward, thereby realizing the forward push of the drilling rig 1204. The hole position guide plate 1206 is arranged with guide holes corresponding to the position of the drilling rig 1204, which can play a role in guiding the drilling position and positioning the hole depth.

[0066] Of course, the working tools installed on the boom system are not limited to the rebar embedding device. According to the working requirements, for example, the roughening device, the anchor device, etc. can also be directly installed on the platform base 4. Moreover, the basic boom system is not completely the same at this time, but because the moving base can cooperate with the platform base to change the distance between the boom system and the inner wall of the tunnel, a longer mechanical arm is also not required at this time.

[0067] Specific embodiment 2 of the tunnel repair operation device provided by the utility model:

[0068] Based on the embodiment 1, the present embodiment directly integrates the support legs 402 on the platform base 4, such as Figure 4-Figure 7 As shown, the support legs 402 can support the platform base 4 when the platform base 4 rotates to the left or right direction. In order to prevent the support legs 402 from affecting the normal rotation of the platform base 4, the support legs 402 can be movably retracted when not in use. Regarding the specific retraction method, the present embodiment provides a swing retraction method, in which the support legs 402 are hinged to the platform base, and the hinge point is preferably the bottom of the platform base 4, so that the support point can be set at a position closer to the moving channel of the moving seat 5. Of course, the hinge point can also be the side of the platform base 4, and hinged retraction will not affect the normal rotation of the platform base 4. As shown in FIG. Figure 1 As shown, when the support block 13 is provided on the fixing seat 2, in order to avoid interference between the support leg 402 and the support block 13, the support block 13 and the support leg 402 can be staggered front and back.

[0069] In order to prevent the support legs 402 from being accidentally retracted after being in place, in this embodiment, a rotation-stopping and limiting structure is also provided between the support legs 402 and the platform base 4. Figure 3As shown, the anti-rotation limit structure can be a relatively simple pin-type anti-rotation structure, specifically, a leg ear plate 4023 can be set on the support leg, and a base ear plate 4025 can be set on the platform base 4. The base ear plate 4025 and the leg ear plate 4023 are provided with mutually matching pin holes. After the positions of the pin holes correspond, the anti-rotation pin shaft 4024 can be inserted to lock the position of the support leg 402. Of course, the anti-rotation limit structure can also be in other forms, such as setting a hanging hole for connecting the diagonal support rod between the platform base 4 and the support leg. After the support leg is swung and unfolded, the diagonal support rod is hung between the platform base and the support leg, which can also play a role in anti-rotation.

[0070] In order to meet the automatic deployment and retraction of the support leg 402, the present embodiment is provided with a swing drive device that drives the support leg 402 to rotate around the hinge point. Specifically, the swing drive device can be a swing cylinder 4022. The two ends of the swing cylinder 4022 are respectively hinged on the platform base 4 and the support leg 402, and its telescopic movement can drive the support leg to deploy and retract. At the same time, since the cylinder has a good self-locking effect, the anti-rotation limit structure can be retained to achieve double insurance, or the anti-rotation limit structure can be omitted. Of course, the swing drive device can also be a cylinder or an electric cylinder.

[0071] Regarding the specific structure of the support leg 402, it can be a telescopic support leg, and the length of the support leg 402 can be actively adjusted to adapt to tunnel foundations of different heights. Specifically, the telescopic support leg can be a hydraulic support leg 4021, or a telescopic support leg composed of a threaded sleeve and a screw.

[0072] As another implementation of the retractable support legs, the support legs may also be lifting legs that can be moved up and down to be retracted. When retraction is required, the lifting legs can be raised as a whole to be higher than the frame 1 to allow the platform base 4 to rotate.

[0073] Of course, depending on the different tunnel foundations, for example, when there is a groove or pit at the bottom of the tunnel that can limit the position of the support legs, the stability of the support legs can be ensured without configuring the anti-rotation limit structure. Moreover, for some processes that still require manual work, scaffolding is generally configured on site. In this case, the platform base 4 may not be configured with support legs, and the scaffolding can be directly placed under the platform base 4 on site.

[0074] Specific embodiment 3 of the tunnel repair operation device provided by the utility model:

[0075] The tunnel repair work device in Example 1 includes a frame 1, and a fixed seat 2 is formed on the base frame. At this time, a connection structure, such as a mounting hole, can be processed on the fixed seat 2 in advance according to the installation requirements. It is also convenient to configure corresponding supporting equipment according to different work device requirements, and there is no need to perform excessive processing on the frame, which facilitates the standardization of the frame 1. The main difference between this embodiment and Example 1 is that this embodiment directly sets a moving mechanism that can move along the track on the base, which can specifically be a walking wheel. At this time, the frame of Example 1 can be regarded as a base by analogy. Other structures except the base can be consistent with Example 1 or Example 2.

[0076] Specific embodiments of the tunnel repair operation group in the utility model:

[0077] The tunnel repair work formation includes a tractor connected to a tunnel repair work device. The tunnel repair work device is consistent with any of the above-mentioned tunnel repair work device embodiments 1-3 and will not be described in detail here.

[0078] Finally, it should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments without creative work, or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A tunnel repair operation device, characterized in that: It includes a base and a platform base installed on the base through a slewing mechanism. The rotation axis of the slewing mechanism extends in the vertical direction. A moving seat and a track for the moving seat to move are provided on the platform base. The moving seat is connected to a boom system. The front end of the boom system is used to install working tools. The platform base has a storage station that moves to the top of the base during its rotation stroke, and also has an expansion station that rotates out the base so that the moving seat can move along the platform base to adjust the distance between the boom system and the inner wall of the tunnel.

2. The tunnel repair device according to claim 1, characterized in that: The platform base is also connected with support legs that can be movably retracted.

3. The tunnel repair operation device according to claim 2, characterized in that: The supporting legs are hinged to the platform base.

4. The tunnel repair operation device according to claim 3, characterized in that: A rotation-stopping and limiting structure is also provided between the supporting legs and the platform base for limiting the supporting legs after they are rotated into position.

5. The tunnel repair device according to claim 3 or 4, characterized in that: A swing driving device for driving the supporting leg to swing around the hinge axis is also provided between the supporting leg and the platform base.

6. The tunnel repair device according to any one of claims 2 to 4, characterized in that: The supporting legs are telescopic legs with adjustable support height.

7. The tunnel repair device according to claim 1, characterized in that: The slewing mechanism is connected to one end of the platform base.

8. The tunnel repair device according to claim 1, characterized in that: The tunnel repairing operation device also includes a vehicle frame, the vehicle frame is provided with wheels, and a base is fixed on the vehicle frame.

9. The tunnel repair device according to claim 1 or 7, characterized in that: A supporting structure for supporting the end of the platform base is provided on the base.

10. A tunnel repair operation group, comprising a tractor, the tractor being connected to a tunnel repair operation device, characterized in that: The tunnel repair work device is the tunnel repair work device in any one of claims 1-9.

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