Supporting device for TBM construction

Abstract

The utility model discloses a supporting device for TBM construction, which comprises a moving trolley, a plurality of guide columns are fixed on the outer wall of the top of the moving trolley, the outer walls of the plurality of guide columns are in sliding fit with the same moving plate, a supporting rod is fixed on the outer wall of the top of the moving plate, a rotating plate is hinged on the side wall of the top of the supporting rod, and the rotating plate is hinged on the side wall of the top of the moving plate. Supporting plates are fixedly connected to the outer walls of the tops of the two ends of the rotating plate through two first connecting assemblies, a plurality of hydraulic columns are fixed to the supporting plates and the outer walls of the tops of the supporting rods, mounting grooves are formed in the telescopic ends of the hydraulic columns, rubber gaskets are in sliding fit with the inner walls of the mounting grooves, and pressure sensors are mounted on the inner walls of the bottoms of the mounting grooves; the top of the pressure sensor is in contact fit with the rubber gasket; by arranging the hydraulic columns and the pressure sensors, multi-point contact between the supporting plate and the inner wall of the tunnel can be guaranteed, and local stress concentration caused by uneven pressure distribution of the inner wall of the tunnel is avoided.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, and in particular to a support device for TBM construction. Background Technology

[0002] TBM tunnel construction refers to the tunnel construction method using a full-face tunnel boring machine. It is a tunnel construction method that uses a rotating and advancing cutterhead to break the rock with disc cutters, thus forming the entire tunnel face in one go. It has a fast construction speed, causes less damage to the surrounding rock during mechanical operation, and is less prone to loosening, rockfall, and collapse. During construction, support devices are used to prevent dangerous situations such as rockfall and collapse.

[0003] A search revealed a Chinese patent publication number CN211819467U, which discloses a temporary support device for tunnel construction, belonging to the field of tunnel construction technology. The device includes: a base plate, casters, a push rod, a main support rod, a support mechanism, and a sliding sleeve. A hydraulic cylinder is installed on the top of the base plate, and the main support rod is fixedly connected to the top of the fixed plate. A groove is provided on the surface of the main support rod, and a pulley is installed inside the groove. A sliding sleeve is fixedly connected to the other end of the pulley. Support mechanisms are fixedly connected to both sides of the sliding sleeve, and an arc-shaped baffle is fixedly connected to the other end of the support mechanism.

[0004] The patented sliding sleeve can slide in the groove through the pulley, and the arc-shaped baffle is moved down as a whole, thereby reducing the storage space of the support device, making it easier to store and improving the convenience of use. However, the unevenness of the tunnel wall and the random distribution of contact points may lead to local stress concentration due to uneven pressure distribution. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a support device for TBM construction.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A support device for TBM construction includes a mobile trolley. Multiple guide columns are fixed to the top outer wall of the mobile trolley. A common moving plate is slidably fitted onto the outer walls of the multiple guide columns. A support rod is fixed to the top outer wall of the moving plate. A rotating plate is hinged to the top side wall of the support rod. Support plates are fixedly connected to the top outer walls of both ends of the rotating plate via two first connecting components. Multiple hydraulic columns are fixed to the top outer walls of both the support plates and the support rod. An installation groove is provided at the telescopic end of each hydraulic column. A rubber gasket is slidably fitted onto the inner wall of the installation groove. A pressure sensor is installed on the bottom inner wall of the installation groove, with the top of the pressure sensor contacting the rubber gasket.

[0008] As a further improvement of this utility model: a hydraulic telescopic cylinder is installed on the outer wall of the top of the mobile trolley, and the telescopic end of the hydraulic telescopic cylinder is fixedly connected to the outer wall of the bottom of the mobile plate.

[0009] As a further embodiment of this utility model: a connecting seat is fixed on the top outer wall of the movable plate, a telescopic rod is rotatably connected to the inner wall of the connecting seat, and another connecting seat is rotatably connected to the telescopic end of the telescopic rod. The connecting seat is connected to the support plate through a second connecting component.

[0010] As a further embodiment of this utility model: the first connecting component includes a limiting strip and a connecting plate. The limiting strip is fixed to the top outer wall of the rotating plate, and a slot is provided on the bottom outer wall of one end of the support plate to cooperate with the limiting strip. The connecting plate is fixed to the bottom outer wall of one end of the support plate.

[0011] As a further improvement of this utility model: the top of the rotating plate is provided with an insertion hole, the connecting plate is inserted into the insertion hole, and the bottom outer wall of the rotating plate is provided with a sliding groove, which is located on one side of the insertion hole.

[0012] As a further embodiment of this utility model: a first insert rod is slidably fitted on the inner wall of the slide groove, one end of the first insert rod is inserted into the connecting plate, and a first spring is provided on the inner wall of the slide groove, with both ends of the first spring connected to the inner wall of the slide groove and the first insert rod respectively.

[0013] As a further embodiment of this utility model: the second connecting component includes a protruding strip and a second insert rod. The protruding strip is fixed to the outer wall of the bottom of the support plate, and the second insert rod is slidably fitted to the inner wall of the connecting seat. One end of the second insert rod is inserted into the protruding strip.

[0014] As a further embodiment of this utility model: the outer wall of the second insertion rod is provided with an annular protrusion, and the outer wall of the second insertion rod is fitted with a second spring, the two ends of the second spring being connected to the annular protrusion and the connecting seat respectively.

[0015] Compared with the prior art, this utility model provides a support device for TBM construction, which has the following beneficial effects:

[0016] 1. This utility model, by setting up hydraulic columns and pressure sensors, can ensure that the support plate has multiple points of contact with the inner wall of the tunnel, and avoid local stress concentration caused by uneven pressure distribution due to the unevenness of the inner wall of the tunnel.

[0017] 2. This utility model, by providing rubber gaskets, can fill the tiny unevenness of the tunnel inner wall, and the rubber gaskets can be replaced individually after wear, without the need for overall disassembly, thus reducing maintenance costs.

[0018] 3. This utility model, by providing a first connecting component and a second connecting component, allows for quick removal and installation of the support plate, adjustment of the support plate size as needed, or rapid replacement of components on the support plate when problems occur.

[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a support device for TBM construction proposed in this utility model.

[0021] Figure 2 This is a partial structural schematic diagram of a support device for TBM construction proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the connection structure between the support rod and the support plate of the support device for TBM construction proposed in this utility model.

[0023] Figure 4 This is a schematic diagram of the connection structure between the telescopic rod and the support plate of a support device for TBM construction proposed in this utility model.

[0024] In the diagram: 1. Moving trolley; 2. Moving plate; 3. Support rod; 4. Support plate; 5. Telescopic rod; 6. Hydraulic telescopic cylinder; 7. Connecting seat; 8. Rotating plate; 9. Limiting strip; 10. Connecting plate; 11. Insertion hole; 12. Slide groove; 13. Insert rod one; 14. Spring one; 15. Protruding strip; 16. Insert rod two; 17. Spring two; 18. Hydraulic column; 19. Rubber gasket; 20. Pressure sensor. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "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 utility model 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 limitations on this utility model.

[0027] Example 1

[0028] A support device for TBM construction, such as Figures 1 to 2As shown, the device includes a mobile trolley 1. Multiple guide pillars are fixed to the top outer wall of the mobile trolley 1. A single mobile plate 2 is slidably fitted onto the outer walls of the multiple guide pillars. A hydraulic telescopic cylinder 6 is installed on the top outer wall of the mobile trolley 1. The telescopic end of the hydraulic telescopic cylinder 6 is fixedly connected to the bottom outer wall of the mobile plate 2. A support rod 3 is fixed to the top outer wall of the mobile plate 2. A rotating plate 8 is hinged to the top side wall of the support rod 3. Support plates 4 are fixedly connected to the top outer walls of both ends of the rotating plate 8 via two first connecting components. A connecting seat 7 is fixed to the top outer wall of the mobile plate 2. A telescopic rod 5 is rotatably connected to the inner wall of the connecting seat 7. Another connecting seat 7 is rotatably connected to the telescopic end of the telescopic rod 5. The connecting seat 7 is connected to the support plate 4 via a second connecting component. Multiple hydraulic columns 18 are fixed to the top outer walls of both the support plate 4 and the support rod 3. An installation groove is opened at the telescopic end of each hydraulic column 18. A rubber gasket 19 is slidably fitted onto the inner wall of the installation groove. A pressure sensor 20 is installed on the bottom inner wall of the installation groove. The top of the pressure sensor 20 contacts and engages with the rubber gasket 19.

[0029] In use, the mobile trolley 1 is pushed to the working position, the hydraulic telescopic cylinder 6 is activated, pushing the moving plate 2 upward, so that the top of the support rod 3 contacts the inner wall of the tunnel. Then, the telescopic rod 5 extends, pushing the support plate 4 to rotate around the connection between the rotating plate 8 and the support rod 3 as the rotation center, so that the rubber pads 19 on the top part of the hydraulic column 18 of the support plate 4 contact the inner wall of the tunnel. The pressure sensor 20 detects the pressure, and then multiple hydraulic columns 18 are activated, pushing the rubber pads 19 to extend. The extension amount of the hydraulic column 18 is controlled by the pressure detected by the pressure sensor 20, so that multiple rubber pads 19 are in contact with the inner wall of the tunnel and maintain the same contact pressure.

[0030] By installing hydraulic columns 18 and pressure sensors 20, it is possible to ensure that the support plate 4 has multiple points of contact with the tunnel wall, thus avoiding local stress concentration caused by uneven pressure distribution due to the unevenness of the tunnel wall.

[0031] By incorporating rubber pads 19, tiny unevenness in the tunnel wall can be filled, and the rubber pads 19 can be replaced individually after wear, eliminating the need for complete disassembly and reducing maintenance costs.

[0032] Example 2

[0033] A support device for TBM construction is described in this embodiment, which is based on Embodiment 1 and makes the following improvements, such as... Figures 3 to 4As shown, the first connecting assembly includes a limiting strip 9 and a connecting plate 10. The limiting strip 9 is fixed to the top outer wall of the rotating plate 8. A groove is formed on the bottom outer wall of one end of the support plate 4 to limit and cooperate with the limiting strip 9. The connecting plate 10 is fixed to the bottom outer wall of one end of the support plate 4. An insertion hole 11 is formed on the top of the rotating plate 8, and the connecting plate 10 is inserted into the insertion hole 11. A sliding groove 12 is formed on the bottom outer wall of the rotating plate 8, located on one side of the insertion hole 11. A first insertion rod 13 is slidably fitted on the inner wall of the sliding groove 12, and one end of the first insertion rod 13 is inserted into the groove. The connecting plate 10 has a spring 14 installed on the inner wall of the slide groove 12. The two ends of the spring 14 are connected to the inner wall of the slide groove 12 and the insertion rod 13, respectively. The second connecting assembly includes a protrusion 15 and an insertion rod 16. The protrusion 15 is fixed to the bottom outer wall of the support plate 4. The insertion rod 16 is slidably fitted on the inner wall of the connecting seat 7. One end of the insertion rod 16 is inserted into the protrusion 15. The outer wall of the insertion rod 16 is provided with an annular protrusion. A spring 17 is sleeved on the outer wall of the insertion rod 16. The two ends of the spring 17 are connected to the annular protrusion and the connecting seat 7, respectively.

[0034] When replacing the support plate 4, two workers simultaneously pull the first insertion rod 13 away from the connecting plate 10. The first spring 14 is compressed and deformed, and the first insertion rod 13 is disengaged from the connecting plate 10. At this time, the rotating plate 8 and the support plate 4 can be separated. Then, the second insertion rod 16 is pulled, and the second spring 17 is compressed and deformed. The second insertion rod 16 is disengaged from the protrusion 15, and the support plate 4 is completely removed. Then, the required size support plate 4 is selected and connected to the rotating plate 8 and the connecting seat 7 in the reverse operation.

[0035] With the first and second connecting components, the support plate 4 can be quickly replaced, the size of the support plate 4 can be adjusted as needed, or the components on the support plate 4 can be quickly replaced if there is a problem.

[0036] Working principle: In use, the mobile trolley 1 is pushed to the working position, the hydraulic telescopic cylinder 6 is activated, pushing the moving plate 2 upward, so that the top of the support rod 3 contacts the inner wall of the tunnel. Then, the telescopic rod 5 extends, pushing the support plate 4 to rotate around the connection between the rotating plate 8 and the support rod 3, so that the rubber pad 19 on the top part of the hydraulic column 18 of the support plate 4 contacts the inner wall of the tunnel. The pressure sensor 20 detects the pressure, and then multiple hydraulic columns 18 are activated, pushing the rubber pad 19 to extend. The pressure detected by the pressure sensor 20 controls the hydraulic columns. Extend 18 to ensure that multiple rubber pads 19 are in contact with the tunnel wall and maintain the same contact pressure. When replacing the support plate 4, two workers simultaneously pull the insert rod 13 away from the connecting plate 10. The spring 14 is compressed and deformed, and the insert rod 13 is separated from the connecting plate 10. At this time, the rotating plate 8 and the support plate 4 can be separated. Then, pull the insert rod 2 16, and the spring 2 17 is compressed and deformed. The insert rod 2 16 is separated from the protrusion 15, and the support plate 4 is completely removed. Then, select the support plate 4 of the required size and operate in the opposite direction to connect it with the rotating plate 8 and the connecting seat 7.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A support device for TBM construction, comprising a mobile trolley (1), characterized in that, The mobile trolley (1) top outer wall is fixed with a plurality of guide columns, a plurality of guide columns outer wall is matched with the same mobile plate (2), the mobile plate (2) top outer wall is fixed with support rod (3), the support rod (3) top side wall is hinged with rotating plate (8), rotating plate (8) both ends top outer wall is fixedly connected with support plate (4) through two first connecting components, the support plate (4) and support rod (3) top outer wall are all fixed with a plurality of hydraulic columns (18), the hydraulic column (18) telescopic end is provided with installation groove, the rubber pad (19) is matched with the inner wall of the installation groove, the pressure sensor (20) is installed on the inner wall of the installation groove bottom, and the pressure sensor (20) top is in contact with the rubber pad (19).

2. The support device for TBM construction according to claim 1, wherein The mobile trolley (1) top outer wall is fixed with a plurality of guide columns, a plurality of guide columns outer wall is matched with the same mobile plate (2), the mobile plate (2) top outer wall is fixed with support rod (3), the support rod (3) top side wall is hinged with rotating plate (8), rotating plate (8) both ends top outer wall is fixedly connected with support plate (4) through two first connecting components, the support plate (4) and support rod (3) top outer wall are all fixed with a plurality of hydraulic columns (18), the hydraulic column (18) telescopic end is provided with installation groove, the rubber pad (19) is matched with the inner wall of the installation groove, the pressure sensor (20) is installed on the inner wall of the installation groove bottom, and the pressure sensor (20) top is in contact with the rubber pad (19).

3. The support device for TBM construction according to claim 2, wherein The mobile plate (2) top outer wall is fixed with a connecting seat (7), the connecting seat (7) inner wall is rotatably connected with telescopic rod (5), and the telescopic rod (5) telescopic end is rotatably connected with another connecting seat (7). The connecting seat (7) is connected with the support plate (4) through the second connecting component.

4. The support device for TBM construction according to claim 1, wherein The first connecting component includes a limiting strip (9) and a connecting plate (10), the limiting strip (9) is fixed on the top outer wall of the rotating plate (8), and the bottom outer wall of one end of the support plate (4) is provided with a clamping groove matched with the limiting strip (9) limiting, the connecting plate (10) is fixed on the bottom outer wall of one end of the support plate (4).

5. The support device for TBM construction according to claim 4, wherein The rotating plate (8) top is provided with a bushing (11), and the connecting plate (10) is inserted into the bushing (11), the bottom outer wall of the rotating plate (8) is provided with a sliding groove (12), and the sliding groove (12) is located on one side of the bushing (11).

6. The support device for TBM construction according to claim 5, wherein The sliding groove (12) inner wall is matched with the plug rod one (13), the plug rod one (13) one end is inserted into the connecting plate (10), the sliding groove (12) inner wall is provided with spring one (14), and the both ends of spring one (14) are connected with the inner wall of the sliding groove (12) and the plug rod one (13) respectively.

7. The support device for TBM construction according to claim 3, wherein The second connecting component includes a convex strip (15) and a plug rod two (16), the convex strip (15) is fixed on the bottom outer wall of the support plate (4), the plug rod two (16) is matched with the inner wall of the connecting seat (7), and the one end of the plug rod two (16) is inserted with the convex strip (15).

8. The support device for TBM construction according to claim 7, wherein The outer wall of the plug rod two (16) is provided with a ring-shaped protrusion, the outer wall of the plug rod two (16) is provided with a spring two (17), and the both ends of the spring two (17) are connected with the ring-shaped protrusion and the connecting seat (7) respectively.

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