Tunnel transverse pilot tunnel supporting hydraulic device

Abstract

The utility model discloses a hydraulic device for supporting a transverse pilot tunnel of a tunnel. The tunnel transverse pilot tunnel supporting hydraulic device comprises a top plate structure and a supporting structure. The top plate structure comprises a main top plate and auxiliary top plates hinged to the two sides of the main top plate, and the main top plate and the auxiliary top plates are each provided with a plurality of elastic contact mechanisms. The elastic contact mechanism comprises a bottom shell, a contact plate and a plurality of springs used for connecting the bottom shell and the contact plate, and the bottom shell is fixed on the main top plate or the auxiliary top plate. According to the tunnel transverse pilot tunnel supporting hydraulic device, the top plate structure comprising the main top plate and the auxiliary top plate is arranged, the elastic contact mechanisms are installed on the main top plate and the auxiliary top plate, the springs can be compressed through the acting force generated when the contact plates extrude protrusions in a tunnel, the top plate structure can be better attached to the tunnel wall, and the supporting effect is improved. And the fitting degree between the top plate and the tunnel is improved, so that the supporting effect is improved.

Description

Technical Field

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

[0002] The hydraulic support device for tunnel cross passages is a key piece of equipment used in tunnel construction for temporary or permanent support of surrounding rock. It achieves rapid and precise support operations through hydraulic drive and intelligent control.

[0003] Conventional tunnel cross-tunnel support hydraulic devices use multi-stage telescopic cylinders to push the roof plate tightly against the tunnel top for support. As is well known, the tunnel wall is not a flat, regular surface after development, and an integrated roof plate cannot fit the tunnel wall well. In order to increase the contact area between the roof plate and the tunnel wall, a hinged roof plate is used. The ball joint structure is adapted to irregular rock surfaces, thereby increasing the contact area of ​​the roof plate.

[0004] However, although this type of roof structure increases the contact area between the roof and the tunnel wall to some extent, there is still room for further improvement.

[0005] Therefore, it is necessary to provide a hydraulic support device for tunnel cross passages to solve the above-mentioned technical problems. Utility Model Content

[0006] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a hydraulic device for supporting the tunnel cross tunnel, which can improve the fit between the roof and the tunnel wall.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] The hydraulic support device for the tunnel cross tunnel includes: a top plate structure and a support structure. The top plate structure includes a main top plate and auxiliary top plates installed on both sides of the main top plate. Both the main top plate and the auxiliary top plates are provided with multiple elastic contact mechanisms. Each elastic contact mechanism includes a bottom shell, a contact plate, and multiple springs for connecting the bottom shell and the contact plate. The bottom shell is fixed on the main top plate or the auxiliary top plate.

[0009] Preferably, the top of the bottom shell has an integrally formed extended edge.

[0010] Preferably, anti-slip grooves are provided on the top of the contact plate.

[0011] Preferably, the support structure includes a support plate, with multiple first multi-stage telescopic cylinders fixedly installed on the top of the support plate. The tops of the first multi-stage telescopic cylinders are connected to the main top plate, and multiple second multi-stage telescopic cylinders are installed between the support plate and the auxiliary top plate.

[0012] Preferably, a robotic arm is mounted on the bottom of the support plate.

[0013] Preferably, the robotic arm is mounted on the engineering vehicle.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) By setting up a top plate structure including a main top plate and an auxiliary top plate, and installing an elastic contact mechanism on the main top plate and the auxiliary top plate, the contact plate can compress the spring by squeezing the protrusion in the tunnel, so that the top plate structure can fit better with the tunnel wall, thereby improving the fit between the top plate and the tunnel and thus improving the support effect.

[0016] (2) This utility model can improve the installation stability of the bottom shell by providing an integrally formed extended edge at the top of the bottom shell;

[0017] (3) By opening anti-slip grooves on the top of the contact plate, this utility model can help improve the stability of the contact plate in use;

[0018] (4) By setting up a support structure including a support plate, a first multi-stage telescopic cylinder and a second multi-stage telescopic cylinder, this utility model can conveniently support and adjust the angle of the top plate structure, so that the top plate structure can better fit the tunnel wall.

[0019] (5) By installing a mechanical arm at the bottom of the support plate, the top plate can be lifted in a convenient way, so that tunnel support can be easily carried out. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of the hydraulic support device for the tunnel cross tunnel provided by this utility model;

[0021] Figure 2 for Figure 1 The diagram shows a front view of the hydraulic support device for the tunnel's transverse guide tunnel.

[0022] Figure 3 for Figure 1 The diagram shows the structure of the elastic contact mechanism in the hydraulic support device for the tunnel cross tunnel.

[0023] The corresponding names of the attached figures are: 1-Main top plate, 2-Auxiliary top plate, 3-Elastic contact mechanism, 4-Bottom shell, 5-Contact plate, 6-Spring, 7-Extension edge, 8-Anti-slip tooth groove, 9-Hinge shaft, 10-Support plate, 11-First multi-stage telescopic cylinder, 12-Second multi-stage telescopic cylinder. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0025] Example 1:

[0026] like Figure 1-3 As shown, the hydraulic support device for the tunnel cross tunnel provided by this utility model includes: a top plate structure and a support structure. The top plate structure includes a main top plate 1 and auxiliary top plates 2 hinged to both sides of the main top plate 1. The overall shape curve of the top plate structure matches the top of the tunnel. In order to further increase the contact area between the top plate structure and the tunnel wall, multiple elastic contact mechanisms 3 are provided on both the main top plate 1 and the auxiliary top plate 2. The elastic contact mechanism 3 includes a bottom shell 4, a contact plate 5, and multiple springs 6 for connecting the bottom shell 4 and the contact plate 5. The bottom shell 4 is fixed on the inner side of the main top plate 1 (auxiliary top plate 2), the contact plate 5 is located on the outer side of the main top plate 1 (auxiliary top plate 2), and the springs 6 pass through the main top plate 1 (auxiliary top plate 2) to elastically connect the main top plate 1 and the auxiliary top plate 2. In use, when the main roof plate 1 and auxiliary roof plate 2 are used for top support operations, the outer contact plate 5 first contacts the tunnel protrusion. If the roof plate continues to move closer to the tunnel wall, the contact plate 5 in contact with the tunnel wall protrusion will stop due to the obstruction of the protrusion. The bottom shell 4 moves closer to the contact plate 5 as the roof plate moves, causing the spring 6 to be compressed until the contact plates 5 in other positions are in contact with the tunnel wall and maintain a certain pressure. Through this structural design, the contact surface between the roof plate (including the main roof plate 1 and auxiliary roof plate 2) and the tunnel wall is greatly improved, enabling better support operations for the tunnel. It is worth noting that the contact plate 5 has a small area (it can be designed as 10cm x 10cm, 2cm thick or smaller as needed) and a high installation density, resulting in multiple contact plates 5 being densely installed on the main roof plate 1 and the protective column roof plate 2. The figure is for illustration only and does not represent the actual dimensions.

[0027] By setting up a roof structure including a main roof slab 1 and an auxiliary roof slab 2, and installing an elastic contact mechanism 3 on the main roof slab 1 and the auxiliary roof slab 2, the force generated when the contact plate 5 squeezes the protrusions in the tunnel can compress the spring 6, so that the roof structure can fit better with the tunnel wall, improving the fit between the roof slab and the tunnel, thereby enhancing the support effect.

[0028] Example 2:

[0029] like Figure 3 As shown, an integrally formed extension edge 7 is provided on the top of the bottom shell 4. The bottom outer side of the bottom shell 4 is inserted into the mounting hole on the main top plate 1 or the auxiliary top plate 2. The extension edge 7 is welded to the edge of the mounting hole on the main top plate 1 or the auxiliary top plate 2 to increase the overlapping area between the bottom shell 4 and the main top plate 1 or the auxiliary top plate 2, thereby improving the connection stability between the bottom shell 4 and the main top plate 1 or the auxiliary top plate 2.

[0030] The installation stability of the bottom shell 4 can be improved by providing an integrally formed extension edge 7 on the top of the bottom shell 4.

[0031] Example 3:

[0032] As shown in Figure 3, in this embodiment, an anti-slip groove 8 is provided on the top of the contact plate 3. When the contact plate 3 with the anti-slip groove 8 is pressed against the tunnel wall, it will be partially embedded in the rock layer, thereby preventing the contact plate 3 from slipping and improving the stability of the contact plate 3.

[0033] By creating anti-slip grooves 8 on the top of the contact plate 3, the stability of the contact plate 3 during use can be improved.

[0034] Example 4:

[0035] like Figure 1-2 As shown, in this embodiment, the support structure includes a support plate 10. Multiple first multi-stage telescopic cylinders 11 are vertically fixedly installed on the top of the support plate 10. The top of the first multi-stage telescopic cylinders 11 is connected to the main top plate 1. The connection method can be fixed or hinged, depending on the different usage environments. In the fixed connection method, the angle of the main top plate 1 is not adjustable. In the hinged connection method, the angle of the main top plate 1 is adjustable, thereby supporting the main top plate 1 through the first multi-stage telescopic cylinders 11. In addition, multiple second multi-stage telescopic cylinders 12 are installed between the support plate 10 and the auxiliary top plate 2, and the auxiliary top plate 2 is supported through the second multi-stage telescopic cylinders 12. In this embodiment, the bottom of the second multi-stage telescopic cylinder 12 is hinged to the support plate 10, and the top of the second multi-stage telescopic cylinder 12 is hinged to the auxiliary top plate 2. In use, by driving the first multi-stage telescopic cylinder 11 and the second multi-stage telescopic cylinder 12 to extend, the main top plate 1 and the auxiliary top plate 2 are rotated around the hinge axis 9, and the angle between the main top plate 1 and the auxiliary top plate 2 is adjusted so that the auxiliary top plate 2 can fit more closely to the tunnel wall, thereby enabling the top plate structure to fit better to the tunnel wall.

[0036] By setting up a support structure including a support plate 10, a first multi-stage telescopic cylinder 11, and a second multi-stage telescopic cylinder 12, the roof structure can be easily supported and its angle adjusted, allowing the roof structure to better fit the tunnel wall.

[0037] Example 5:

[0038] In this embodiment, a robotic arm is installed at the bottom of the support plate 10. The support plate 10 is lifted by the robotic arm. When in use, the robotic arm installed on the engineering vehicle is used to send the top plate structure to the position that needs support, so that the main top plate 1 contacts the tunnel wall. Then, the first multi-stage telescopic cylinder 11 extends to increase the pressure between the main top plate 1 and the tunnel wall. Then, the second multi-stage telescopic cylinder 12 extends to unfold the auxiliary top plate 2 and raise its outer side, so that the auxiliary top plate 2 fits against the tunnel wall and maintains a certain pressure.

[0039] By installing a robotic arm at the bottom of the support plate 10, the top plate 1 can be easily lifted, making it convenient for tunnel support.

[0040] Working principle: When using the roof structure for support operations, the outer contact plate 5 first contacts the tunnel protrusion. If the roof continues to move closer to the tunnel wall, the contact plate 5 that is in contact with the tunnel wall protrusion will stop moving due to the obstruction of the protrusion. The bottom shell 4 moves closer to the contact plate 5 as the roof moves, causing the spring 6 to be compressed until the contact plates 5 in other positions are in contact with the tunnel wall and maintain a certain pressure. Through this structural design, the contact surface between the roof structure and the tunnel wall is greatly improved, which can better support the tunnel.

Claims

1. A hydraulic support device for a tunnel cross passage, characterized in that, Include: Top plate structure and support structure; The top plate structure includes a main top plate (1) and auxiliary top plates (2) installed on both sides of the main top plate (1), and a plurality of elastic contact mechanisms (3) are arranged on the main top plate (1) and the auxiliary top plate (2). The elastic contact mechanism (3) includes a bottom shell (4), a contact plate (5), and a plurality of springs (6) for connecting the bottom shell (4) and the contact plate (5), and the bottom shell (4) is fixed on the main top plate (1) or the auxiliary top plate (2).

2. The hydraulic device for supporting a cross tunnel according to claim 1, wherein The top of the bottom shell (4) is provided with an integrally formed extension edge (7).

3. The hydraulic device for supporting a cross tunnel according to claim 1, wherein The top of the contact plate (5) is provided with an anti-skid tooth groove (8).

4. The hydraulic device for supporting a cross tunnel according to claim 1, wherein The support structure includes a support plate (10), a plurality of first multi-stage telescopic oil cylinders (11) are fixedly installed on the top of the support plate (10), the top of the first multi-stage telescopic oil cylinder (11) is connected with the main top plate (1), and a plurality of second multi-stage telescopic oil cylinders (12) are installed between the support plate (10) and the auxiliary top plate (2).

5. The hydraulic device for supporting a cross tunnel according to claim 4, wherein The bottom of the support plate (10) is provided with a mechanical arm.

6. The hydraulic device for supporting a cross tunnel according to claim 5, wherein The mechanical arm is installed on an engineering vehicle.

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