An auxiliary supporting device for green construction of a shield machine

Abstract

The utility model relates to a shield machine construction technology field especially for a kind of auxiliary support device for shield machine green construction, including support frame, mobile groove and the drive groove located in the lower end of mobile groove are all set up in the both ends of support frame, the inside fixed mounting of support frame has bidirectional motor, the two output ends of bidirectional motor are all power connection to have driving screw, the side of the output end of'is provided with driving screw, mobile groove is provided with adjusting assembly, abutting block located in the outside of moving block is installed on adjusting assembly, the support seat of being able to lift is installed in support frame middle, by the cooperation of adjusting assembly, bidirectional motor and driving screw, so that the device can make suitable adjustment according to the shield machine body of different models, enhanced applicability, so that abutting block can and the outer wall of shield machine body closely fit, enhanced the stability of shield machine body support, abutting block and support seat can be reasonably adjusted according to the specification of shield machine body, and flexibility is stronger.

Description

Technical Field

[0001] This utility model relates to the field of tunnel boring machine construction technology, and in particular to an auxiliary support device for green construction of tunnel boring machines. Background Technology

[0002] A tunnel boring machine (TBM) is a mechanical device used for tunnel excavation, employing the shield tunneling method for excavation and construction. It mainly consists of a shield shell, propulsion system, tunneling head, cutterhead, cutting blades, steering mechanism, screw conveyor, and support system. The TBM works by rotating the tunneling head and using the cutting blades to cut through the soil. The excavated soil is then transported by the screw conveyor to a soil removal system at the rear, ultimately exiting the tunnel. Simultaneously, the TBM's support system supports and stabilizes the tunnel structure, ensuring construction safety.

[0003] A Chinese-authorized publication number, CN 221834268 U, describes an auxiliary support device for tunnel boring machine (TBM) construction. This device can be erected using ball wheels, facilitating its movement to a suitable position. Depending on the diameter of the TBM to be supported, a turntable rotates the first and second rotating rods synchronously, allowing for adjustment of the distance between the first and second support seats to suit the corresponding TBM, thus facilitating maintenance and repair operations.

[0004] However, this patent still has some shortcomings in its use. During the construction of the tunnel boring machine (TBM), the TBM head needs to be supported and placed using supports. However, since different TBMs have different diameters, the existing support devices can only provide support and cannot be adjusted according to the specifications of the TBM. The support structure and the outside of the TBM cannot fit together, resulting in unstable support for the TBM and easy impact and wear. This leads to certain limitations of the auxiliary support device. In addition, the existing auxiliary support device is large in size, takes up a lot of space, and is inconvenient to store. Utility Model Content

[0005] The purpose of this invention is to provide an auxiliary support device for green construction of tunnel boring machines, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An auxiliary support device for green construction of tunnel boring machines includes a support frame. Both ends of the support frame have movable slots and a drive slot located at the lower end of the movable slots. A bidirectional motor is fixedly installed inside the support frame, and both output ends of the bidirectional motor are poweredly connected to drive screws. An adjustment assembly is provided inside the movable slots. The adjustment assembly includes a movable block installed inside the movable slot, and a drive block is fixedly connected to the bottom of the movable block. A threaded groove is formed through the side of the drive block. The other end of the drive screw extends into the drive slot and is threadedly connected to the threaded groove. An adjustment cavity and a rotation cavity are respectively formed inside the movable block. An electric push rod is fixedly connected inside the adjustment cavity. A rack and pinion drive assembly is installed inside the rotation cavity. One end of the rack and pinion drive assembly is connected to the electric push rod, and the other end of the rack and pinion drive assembly is fitted with an abutment block located outside the movable block. A liftable support base is installed in the middle of the support frame.

[0008] As a preferred embodiment of this utility model, the rack and pinion transmission assembly includes a gear plate installed in the adjustment cavity, the gear plate being slidably connected to the inner wall of the adjustment cavity, one end of the gear plate being fixedly connected to an electric push rod, a gear block meshing with the gear plate being rotatably connected inside the rotating cavity, a connecting block extending to the outside of the moving block being installed on the side of the gear block, and an abutment block being installed on the top of the connecting block.

[0009] As a preferred embodiment of this utility model, the side of the moving block is provided with a guide groove and a limiting groove, the guide groove is connected to the adjustment cavity, the gear plate extends into the guide groove, the limiting groove is connected to the rotation cavity, and the connecting block passes through the limiting groove.

[0010] As a preferred embodiment of this utility model, a plurality of first hydraulic rods are symmetrically distributed in the middle of the support frame, a support seat is installed at the top of the first hydraulic rods, and a steering wheel is movably connected to the bottom of the support frame.

[0011] As a preferred embodiment of this utility model, there are two support frames, and a second hydraulic rod and a connecting assembly are installed between the two support frames. The connecting assembly includes a first connecting strip and a second connecting strip arranged in a cross manner. A sliding groove is provided on the inner side of the support frame, and one end of the first connecting strip and the second connecting strip is slidably connected to the corresponding sliding groove.

[0012] As a preferred embodiment of this utility model, the first connecting strip and the second connecting strip are stacked on top of each other, and a rotating shaft with a rotatable connection is installed at the intersection of the first connecting strip and the second connecting strip.

[0013] As a preferred embodiment of this utility model, both ends of the first connecting strip and the second connecting strip are rotatably connected to rotating seats. The two rotating seats located on the right side of the rotating shaft are fixedly connected to the side of the support frame, and the rotating seats located on the left side of the rotating shaft are fixedly connected to moving parts. The first connecting strip and the second connecting strip are slidably connected to the slide groove through the moving parts.

[0014] As a preferred embodiment of this utility model, silicone pads are provided on the top of the support base and the side of the abutment block, and anti-slip textures are provided on the outer end face of the silicone pads.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In this utility model, the device can be appropriately adjusted according to different models of tunnel boring machines (TBMs) by using the adjustment components, bidirectional motors, and drive screws in combination, thus enhancing its applicability. This allows the abutment block to fit tightly against the outer wall of the TBM, improving the stability of the support for the TBM. During support, the TBM is placed on top of the support base, and then the electric push rod and bidirectional motor are driven to operate. The bidirectional motor drives the drive screw to rotate, thereby moving the drive block so that it can move closer to the side of the TBM. Then, by controlling the extension and retraction of the electric push rod, the abutment block is adjusted to a suitable angle through the rack and pinion transmission assembly, so that the side of the abutment block and the top of the support base can fit tightly against the outside of the TBM, improving the stability of the support.

[0017] 2. In this utility model, by setting a second hydraulic rod and connecting components, the device can be quickly stored away. After use, it can be folded up and placed away. Compared with existing large support structures, it occupies less space, is lighter, and is more convenient to move. When needed, the second hydraulic rod is extended to open the distance between the two support frames. During this process, the moving part moves along the slide groove, and the first and second connecting bars rotate around the pivot, thereby extending the device. It can be freely adjusted according to the length of the tunnel boring machine body, which is highly flexible. When it needs to be stored away, the second hydraulic rod can be retracted. In addition, the cross design of the first and second connecting bars can enhance the stability of the connection between the two support frames, thereby effectively improving the service life of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the working process of this utility model;

[0019] Figure 2 This is a top view of the entire utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the support structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the adjustment component of this utility model;

[0022] Figure 5 This is a schematic diagram of the connection component of this utility model.

[0023] In the diagram: 1. Support frame; 2. Moving groove; 3. Adjusting assembly; 4. Bidirectional motor; 5. Drive screw; 6. First hydraulic rod; 7. Support seat; 8. Tunnel boring machine body; 9. Second hydraulic rod; 10. Connecting assembly; 11. Slide groove; 12. Drive groove; 13. Steering wheel; 301. Moving block; 302. Drive block; 303. Threaded groove; 304. Adjusting cavity; 305. Electric push rod; 306. Guide groove; 307. Gear plate; 308. Rotating cavity; 309. Gear block; 310. Connecting block; 311. Abutment block; 312. Limiting groove; 1001. First connecting strip; 1002. Second connecting strip; 1003. Rotating shaft; 1004. Rotating seat; 1005. Moving part. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] For examples, please refer to Figure 1-5 This utility model provides a technical solution:

[0026] An auxiliary support device for green construction of tunnel boring machines includes a support frame 1, with a steering wheel 13 movably connected to the bottom of the support frame 1. Silicone pads are provided on the top of the support base 7 and the side of the abutment block 311, and anti-slip textures are provided on the outer end face of the silicone pads.

[0027] In this embodiment, as Figure 1 , Figure 3 and Figure 4As shown, the support frame 1 has a movable slot 2 at both ends and a drive slot 12 located at the lower end of the movable slot 2. A bidirectional motor 4 is fixedly installed inside the support frame 1. Both output ends of the bidirectional motor 4 are poweredly connected to drive screws 5. An adjustment assembly 3 is provided in the movable slot 2. The adjustment assembly 3 includes a movable block 301 installed in the movable slot 2. A drive block 302 is fixedly connected to the bottom of the movable block 301. A threaded groove 303 is opened through the side of the drive block 302. The other end of the drive screw 5 extends into the drive slot 12 and is connected to the threaded groove 303. The movable block 301 is threadedly connected and has an adjustment cavity 304 and a rotation cavity 308 inside. An electric push rod 305 is fixedly connected inside the adjustment cavity 304. A rack and pinion drive assembly is installed inside the rotation cavity 308. One end of the rack and pinion drive assembly is connected to the electric push rod 305, and the other end is fitted with an abutment block 311 located outside the movable block 301. A liftable support seat 7 is installed in the middle of the support frame 1. Several symmetrically distributed first hydraulic rods 6 are installed in the middle of the support frame 1, and the support seat 7 is installed at the top of the first hydraulic rods 6.

[0028] The device, through the coordinated use of adjustment component 3, bidirectional motor 4, and drive screw 5, can be appropriately adjusted according to different models of tunnel boring machine (TBM) bodies 8, enhancing its applicability. This allows the abutment block 311 to fit tightly against the outer wall of the TBM body 8, improving the stability of the support for the TBM body 8. During support, the TBM body 8 is placed on top of the support base 7. Then, the electric push rod 305 and bidirectional motor 4 are driven to operate. The bidirectional motor 4 drives the drive screw 5 to rotate, thereby moving the drive block 302. This allows the moving block 301 to approach the side of the TBM body 8. Then, by controlling the extension and retraction of the electric push rod 305, the abutment block 311 is adjusted to a suitable angle through the rack and pinion transmission assembly, ensuring that the side of the abutment block 311 and the top of the support base 7 fit tightly against the outside of the TBM body 8, improving the stability of the support.

[0029] Meanwhile, the silicone pads can also reduce impact and wear on the tunnel boring machine body 8, thus protecting it.

[0030] The rack and pinion drive assembly includes a gear plate 307 installed in the adjustment cavity 304. The gear plate 307 is slidably connected to the inner wall of the adjustment cavity 304. One end of the gear plate 307 is fixedly connected to the electric push rod 305. A gear block 309 that meshes with the gear plate 307 is rotatably connected inside the rotating cavity 308. A connecting block 310 extending to the outside of the moving block 301 is installed on the side of the gear block 309. An abutment block 311 is installed on the top of the connecting block 310.

[0031] The extension and retraction of the electric push rod 305 can drive the gear plate 307 to move along the inner wall of the adjustment cavity 304. Under the action of the gear plate 307, the gear block 309 starts to rotate, and drives the abutment block 311 to rotate through the connecting block 310, thereby realizing the function of adjusting the angle of the abutment block 311.

[0032] The side of the movable block 301 is provided with a guide groove 306 and a limiting groove 312. The guide groove 306 is connected to the adjustment cavity 304. The gear plate 307 extends into the guide groove 306. The limiting groove 312 is connected to the rotation cavity 308. The connecting block 310 passes through the limiting groove 312.

[0033] The guide groove 306 and the limiting groove 312 restrict the movement trajectory of the gear plate 307 and the connecting block 310, ensuring that the gear plate 307 and the connecting block 310 move along the specified trajectory.

[0034] In this embodiment, as Figure 1 , Figure 2 and Figure 5 As shown, there are two support frames 1. A second hydraulic rod 9 and a connecting assembly 10 are installed between the two support frames 1. The connecting assembly 10 includes a first connecting bar 1001 and a second connecting bar 1002 arranged in a cross configuration. A sliding groove 11 is provided on the inner side of the support frame 1. One end of the first connecting bar 1001 and the second connecting bar 1002 is slidably connected to the corresponding sliding groove 11. The first connecting bar 1001 and the second connecting bar 1002 are stacked on top of each other. A rotating shaft 1003 is installed at the intersection of the first connecting bar 1001 and the second connecting bar 1002.

[0035] Both ends of the first connecting bar 1001 and the second connecting bar 1002 are rotatably connected to rotating seats 1004. The two rotating seats 1004 located on the right side of the rotating shaft 1003 are fixedly connected to the side of the support frame 1. The rotating seats 1004 located on the left side of the rotating shaft 1003 are fixedly connected to moving parts 1005. The first connecting bar 1001 and the second connecting bar 1002 are slidably connected to the slide groove 11 through the moving parts 1005.

[0036] The device can be quickly stored by setting up a second hydraulic rod 9 and a connecting component 10. After use, it can be folded up and placed away. Compared with the existing large support structure, it occupies less space, is lighter, and is easier to move. When needed, the second hydraulic rod 9 is extended to open the distance between the two support frames 1. During this process, the moving part 1005 moves along the slide 11, and the first connecting bar 1001 and the second connecting bar 1002 rotate around the pivot 1003, thereby extending the device. It can be freely adjusted according to the length of the tunnel boring machine body 8, which is highly flexible. When it needs to be stored, the second hydraulic rod 9 can be retracted. In addition, the cross design of the first connecting bar 1001 and the second connecting bar 1002 can enhance the stability of the connection between the two support frames 1, thereby effectively improving the service life of the device.

[0037] The working process of this utility model is as follows: When using the auxiliary support device designed in this scheme for green construction of tunnel boring machines, the tunnel boring machine body 8 is placed on top of the support base 7. Then, the electric push rod 305 and the bidirectional motor 4 are driven to work. The bidirectional motor 4 drives the drive screw 5 to rotate, thereby driving the drive block 302 to move, so that the moving block 301 can approach the side of the tunnel boring machine body 8. Then, by controlling the extension and retraction of the electric push rod 305, the gear plate 307 is driven to move along the inner wall of the adjustment cavity 304. Under the action of the gear plate 307, the gear block 309 starts to rotate, and through the connecting block 310, it drives the abutment block 311 to rotate, thereby adjusting the abutment block 311 to the desired position. The appropriate angle allows the silicone pads on the sides of the abutment block 311 and the top of the support base 7 to fit tightly against the exterior of the tunnel boring machine body 8. The silicone pads also reduce impact and wear on the tunnel boring machine body 8, protecting it. When needed, the second hydraulic rod 9 is extended to widen the distance between the two support frames 1. During this process, the moving part 1005 moves along the slide 11, and the first connecting bar 1001 and the second connecting bar 1002 rotate around the pivot 1003, thus extending the device. It can be freely adjusted according to the length of the tunnel boring machine body 8, offering high flexibility. When it needs to be stored, the second hydraulic rod 9 is simply retracted.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An auxiliary support device for green construction of tunnel boring machines, comprising a support frame (1), characterized in that: The support frame (1) has a moving slot (2) at both ends and a drive slot (12) at the lower end of the moving slot (2). A bidirectional motor (4) is fixedly installed inside the support frame (1). Both output ends of the bidirectional motor (4) are poweredly connected to drive screws (5). An adjustment component (3) is provided in the moving slot (2). The adjustment component (3) includes a moving block (301) installed in the moving slot (2). A drive block (302) is fixedly connected to the bottom of the moving block (301). A threaded groove (303) is provided through the side of the drive block (302). The other end of the drive screw (5) extends into the drive groove (12) and is threadedly connected to the threaded groove (303). The moving block (301) has an adjustment cavity (304) and a rotation cavity (308) respectively. An electric push rod (305) is fixedly connected inside the adjustment cavity (304). A rack and pinion drive assembly is installed inside the rotation cavity (308). One end of the rack and pinion drive assembly is connected to the electric push rod (305). The other end of the rack and pinion drive assembly is equipped with an abutment block (311) located outside the moving block (301). A support seat (7) that can be raised and lowered is installed in the middle of the support frame (1).

2. The auxiliary support device for green construction of tunnel boring machines according to claim 1, characterized in that: The rack and pinion drive assembly includes a gear plate (307) installed in the adjustment cavity (304). The gear plate (307) is slidably connected to the inner wall of the adjustment cavity (304). One end of the gear plate (307) is fixedly connected to the electric push rod (305). The rotating cavity (308) is rotatably connected to a gear block (309) that meshes with the gear plate (307). A connecting block (310) extending to the outside of the moving block (301) is installed on the side of the gear block (309). An abutment block (311) is installed on the top of the connecting block (310).

3. The auxiliary support device for green construction of tunnel boring machines according to claim 2, characterized in that: The side of the moving block (301) is provided with a guide groove (306) and a limiting groove (312). The guide groove (306) is connected to the adjustment cavity (304). The gear plate (307) extends into the guide groove (306). The limiting groove (312) is connected to the rotating cavity (308). The connecting block (310) passes through the limiting groove (312).

4. The auxiliary support device for green construction of tunnel boring machines according to claim 1, characterized in that: The support frame (1) has several first hydraulic rods (6) symmetrically distributed in the middle, and the support seat (7) is installed at the top of the first hydraulic rods (6). The bottom of the support frame (1) is movably connected to a steering wheel (13).

5. An auxiliary support device for green construction of tunnel boring machines according to claim 1, characterized in that: There are two support frames (1). A second hydraulic rod (9) and a connecting assembly (10) are installed between the two support frames (1). The connecting assembly (10) includes a first connecting strip (1001) and a second connecting strip (1002) arranged in a cross manner. A sliding groove (11) is provided on the inner side of the support frame (1). One end of the first connecting strip (1001) and the second connecting strip (1002) is slidably connected to the corresponding sliding groove (11).

6. An auxiliary support device for green construction of tunnel boring machines according to claim 5, characterized in that: The first connecting strip (1001) and the second connecting strip (1002) are stacked on top of each other, and a rotating shaft (1003) is installed at the intersection of the first connecting strip (1001) and the second connecting strip (1002).

7. An auxiliary support device for green construction of tunnel boring machines according to claim 6, characterized in that: The first connecting bar (1001) and the second connecting bar (1002) are rotatably connected to rotating seats (1004) at both ends. The two rotating seats (1004) located on the right side of the rotating shaft (1003) are fixedly connected to the side of the support frame (1). The rotating seats (1004) located on the left side of the rotating shaft (1003) are fixedly connected to moving parts (1005). The first connecting bar (1001) and the second connecting bar (1002) are slidably connected to the slide groove (11) through the moving parts (1005).

8. An auxiliary support device for green construction of tunnel boring machines according to claim 1, characterized in that: The top of the support base (7) and the side of the abutment block (311) are both provided with silicone pads, and the outer end face of the silicone pads is provided with anti-slip texture.

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