Supporting bracket device for coal mine tunnel

Abstract

The utility model discloses a supporting bracket device of a coal mine tunnel, which comprises a U-shaped supporting beam, two ends of the supporting beam are respectively inserted in a supporting seat in a sliding way, a pressure spring is vertically arranged at the bottom end of the supporting beam, an induction column is horizontally connected on the supporting beam, the induction column is connected with the supporting seat in an up-down sliding way, and the pressure spring is connected with the supporting seat in a sliding way. An intelligent induction assembly is arranged under the induction column and used for detecting the lower limit position of the induction column and giving an alarm. The supporting device has the advantages that the structure is simple, the supporting base and the supporting beam are designed to be of a sliding type splicing structure, the strong pressure spring is used as a supporting piece, the connecting structure is fast and convenient, the intelligent sensing assembly is designed to detect deformation of the supporting beam in time, and therefore measures are taken in time, dangerous accidents are avoided, and the safety is high. And meanwhile, multiple folding type hydraulic supporting pieces are designed, the supporting effect is good, use is flexible and changeable, and the device is worthy of wide-range application and popularization.

Description

Technical field:

[0001] The utility model relates to the technical field of underground coal mine support, in particular to a support bracket device for coal mine tunnels. Background technology:

[0002] The working environment in coal mines is complex and dangerous, and coal mine support is one of the important means to ensure the safety of miners. The use of shed support can increase the stability of the coal seam, improve the bearing capacity of the coal seam, and avoid accidents such as collapse and roof falls. The structure of a single shed usually includes two vertically arranged columns, and three arc-shaped top beams are bolted on the columns. In the actual production process, collapse and roof falls occur frequently, causing casualties. In the early stage of the accident, the shed will be slightly deformed under pressure, but this deformation is difficult to be discovered in time, and measures cannot be taken in time, resulting in serious accidents. For this reason, the utility model provides a new support bracket device for coal mine tunnels to detect the deformation of the shed in advance. Utility model content:

[0003] The utility model aims to provide a support bracket device for a coal mine tunnel to solve the technical problem that the scaffolding support in the prior art cannot detect the deformation situation in time.

[0004] Contents of the utility model: A support bracket device for a coal mine tunnel, comprising a U-shaped support beam, both ends of the support beam are respectively slidably inserted in a support seat, a compression spring is vertically installed at the bottom end of the support beam, a sensing column is horizontally connected to the support beam, the sensing column is slidably connected to the support seat up and down, and an intelligent sensing component is arranged directly below the sensing column, the intelligent sensing component is used to detect the lower limit position of the sensing column and alarm.

[0005] Furthermore, the intelligent sensing component includes a proximity switch, which is used to detect the lower limit position of the sensing column. The proximity switch is electrically connected to a PLC controller, and the PLC controller is electrically connected to an alarm.

[0006] Furthermore, two first hydraulic cylinders are symmetrically hinged on the support beam, piston rods of the first hydraulic cylinders are placed on limit columns, and the limit columns are fixedly connected to the support beam.

[0007] Furthermore, a second hydraulic cylinder is hinged on the first hydraulic cylinder, and a U-shaped tightening fork is connected to the piston rod of the second hydraulic cylinder.

[0008] Furthermore, a magnet block is connected to the piston rod of the second hydraulic cylinder, and the magnet block magnetically attracts the second hydraulic cylinder.

[0009] Furthermore, a slide groove is provided on the support seat, and the sensing column is slidably connected to the slide groove.

[0010] The beneficial effects of the utility model: the utility model has a simple structure, the support seat and the support beam are designed as a sliding splicing structure, and a strong compression spring is used as a support member. The connection structure is quick and convenient, and the intelligent sensing component is designed to detect the deformation of the support beam in time, so that timely measures can be taken to avoid the occurrence of dangerous accidents. At the same time, multiple folding hydraulic support parts are designed, the support effect is good, the use is flexible and changeable, and it is worthy of large-scale promotion and use. Description of the drawings:

[0011] Figure 1 It is the front view of the utility model;

[0012] Figure 2 It is a three-dimensional diagram of the utility model;

[0013] Figure 3 This is the control block diagram of the utility model;

[0014] In the figure, there are a support seat 1, a support beam 2, a sensing column 3, a compression spring 4, a first hydraulic cylinder 5, a second hydraulic cylinder 6, a proximity switch 7, a PLC controller 8, an alarm 9, a slide 10, a limit column 11, a magnet block 12, and a tightening fork 13. Specific implementation method:

[0015] like Figure 1 As shown, a support bracket device for a coal mine tunnel includes a U-shaped support beam 2, both ends of the support beam 2 are slidably inserted in a support seat 1, a compression spring 4 is vertically installed at the bottom end of the support beam 2, a sensing column 3 is horizontally connected to the support beam 2, the sensing column 3 is slidably connected to the support seat 1 up and down, a slide groove 10 is opened on the support seat 1, the sensing column 3 is slidably connected to the slide groove 10, and an intelligent sensing component is arranged directly below the sensing column 3, the intelligent sensing component is used to detect the lower limit position of the sensing column 3 and alarm.

[0016] like Figure 1 and Figure 3 As shown, the intelligent sensing component includes a proximity switch 7, which is used to detect the lower limit position of the sensing column 3. The proximity switch 7 is electrically connected to a PLC controller 8, and the PLC controller 8 is electrically connected to an alarm 9.

[0017] In order to improve the support performance, Figure 2As shown, two first hydraulic cylinders 5 are symmetrically hinged on the support beam 2, and the piston rods of the first hydraulic cylinders 5 are placed on the limit columns 11, and the limit columns 11 are fixedly connected to the support beam 2; in order to further improve the support performance, a second hydraulic cylinder 6 is hinged on the first hydraulic cylinder 5, and a U-shaped tightening fork 13 is connected to the piston rod of the second hydraulic cylinder 6. In order to better brake the second hydraulic cylinder 6, a magnet block 12 is connected to the piston rod of the second hydraulic cylinder 6, and the magnet block 12 magnetically attracts the second hydraulic cylinder 6.

[0018] When used specifically, Figures 1 to 3 As shown, when the pressure of the support beam 2 increases, the support beam 2 moves downward, thereby causing the sensing column 3 to move downward, and the proximity switch 7 detects the position signal of the sensing column 3, and sends an electrical signal to the PLC controller 8. The PLC controller 8 controls the alarm 9 to warn the operator of possible support instability and to take timely measures. In order to quickly and conveniently strengthen the supporting force, the first hydraulic cylinder 5 can be lowered vertically and started for support. At the same time, the second hydraulic cylinder 6 can also be deployed to further strengthen the support, thereby quickly and significantly improving the supporting capacity.

[0019] The above are only preferred examples of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A support bracket device for a coal mine tunnel, Features: The invention comprises a U-shaped support beam (2), the two ends of the support beam (2) are respectively slidably inserted into a support seat (1), a compression spring (4) is vertically installed at the bottom end of the support beam (2), a sensing column (3) is horizontally connected to the support beam (2), the sensing column (3) is slidably connected to the support seat (1) up and down, and an intelligent sensing component is arranged directly below the sensing column (3), and the intelligent sensing component is used to detect the lower limit position of the sensing column (3) and to give an alarm.

2. A support bracket device for a coal mine tunnel according to claim 1, Features: The intelligent sensing component comprises a proximity switch (7), the proximity switch (7) is used to detect the lower limit position of the sensing column (3), the proximity switch (7) is electrically connected to a PLC controller (8), and the PLC controller (8) is electrically connected to an alarm (9).

3. A support bracket device for a coal mine tunnel according to claim 1, Features: Two first hydraulic cylinders (5) are symmetrically hinged on the support beam (2), the piston rods of the first hydraulic cylinders (5) are placed on the limit columns (11), and the limit columns (11) are fixedly connected to the support beam (2).

4. A support bracket device for a coal mine tunnel according to claim 3, Features: A second hydraulic cylinder (6) is hingedly connected to the first hydraulic cylinder (5), and a U-shaped tightening fork (13) is connected to the piston rod of the second hydraulic cylinder (6).

5. A support bracket device for a coal mine tunnel according to claim 4, Features: A magnet block (12) is connected to the piston rod of the second hydraulic cylinder (6), and the magnet block (12) magnetically attracts the second hydraulic cylinder (6).

6. A support bracket device for a coal mine tunnel according to claim 1, Features: A sliding groove (10) is provided on the support seat (1), and the sensing column (3) is slidably connected to the sliding groove (10).

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