Lateral stress detection device for shed support roadway

Abstract

The utility model provides a shed support roadway lateral stress detection device, and mainly relates to the technical field of shed support roadway pressure detection. A shed supporting roadway lateral stress detection device comprises an arc-shaped support, connecting plates are hinged to the two ends of the arc-shaped support respectively, connecting bases are symmetrically and fixedly installed on the two sides of the concave face of the arc-shaped support, and a vibrating wire strain gauge is arranged between the two connecting bases. The beneficial effects of the utility model are that when the device is used, the vibrating wire strain gauge can be installed at a corner of a roadway support through the arc-shaped support, thereby realizing stress detection of key parts of the roadway support.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of pressure detection in roadway support with shed frames, and specifically relates to a device for detecting lateral stress in a roadway supported by shed frames. Background Technique

[0002] The roadway support technology with shed frames is an important support method in mine engineering, mainly used to ensure the safety and stability of roadways during underground mining. This technology supports the surrounding rock by setting up metal or wooden supports in the roadway to prevent rock collapse, protect the safety of workers, and ensure the smoothness of the transportation passage. According to the different materials and structural forms used, the roadway support with shed frames can be divided into various types, and the common ones are as follows:

[0003] U-shaped steel support: Using U-shaped steel as the main support material, it has a high bearing capacity and good adaptability, and is suitable for environments with complex geological conditions and large pressures.

[0004] I-beam support: Made of I-shaped cross-section steel, it is more durable than the U-shaped steel support, but the cost is relatively high.

[0005] Wooden support: An early and commonly used method, which is still used under certain specific conditions (such as temporary support). Its advantages are easy processing and installation and low cost; its disadvantages are sensitivity to humidity and easy rotting and deformation during long-term use.

[0006] Shrinkable support: This type of support is designed with a special structure that enables it to adjust its size within a certain range to adapt to changes in roadway dimensions and improve the resistance to uneven ground pressure.

[0007] Selecting a suitable roadway support plan with shed frames requires comprehensive consideration of multiple factors, including but not limited to the specific geological conditions of the mine, mining depth, expected service life, and economic cost, etc. With the development of technology, new materials and technologies are continuously applied to the field of roadway support, aiming to further improve safety while reducing maintenance costs.

[0008] When using the shed frame support facilities, corresponding stress detection devices need to be set up. Lateral stress refers to the pressure acting on the rocks on both sides of the roadway, which can affect the safety performance and support performance of the support. The existing stress detection devices have a relatively simple structure and need to be installed on the plane of the support for use. However, the shed frame supports are generally supported along the inner wall of the roadway. Therefore, the shed frame supports are generally arc-shaped structures above, and the corners on both sides of the shed frame supports are subjected to greater forces and are prone to damage. The existing stress detection devices are not convenient to install at the corners of the shed frame supports and are not easy to use. Content of the Utility Model

[0009] To address the deficiencies of the prior art, the present utility model provides a lateral stress detection device for a roadway supported by shed supports, which is achieved through the following technical solutions:

[0010] A lateral stress detection device for a roadway supported by shed supports includes an arc-shaped support. Both ends of the arc-shaped support are respectively hingedly installed with connecting plates. Symmetrically fixed on both sides of the concave surface of the arc-shaped support are connecting seats, and between the two connecting seats is a vibrating wire strain gauge.

[0011] Furthermore, on the bottom surface of each connecting plate is fixedly installed a hinge seat. Both ends of the arc-shaped support are fixedly installed with connecting blocks that are hinged to the hinge seats, and at the four corners of the top surface of each connecting plate are respectively provided with mounting holes.

[0012] Furthermore, on the front and rear parts of both sides of the concave surface of the arc-shaped support are respectively hingedly installed hydraulic cylinders, and the movable ends of the telescopic rods of the hydraulic cylinders are respectively hingedly installed with support plates.

[0013] Furthermore, on the top surface of each support plate is respectively provided with a groove, and inside each groove is fixedly installed a magnet.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] When in use, this device can install the vibrating wire strain gauge at the corner of the roadway support through the arc-shaped support, thereby realizing the stress detection of the key parts of the roadway support. Through the rotatable connecting plates at both ends of the arc-shaped support, the arc-shaped support can be adapted to the installation at the corners of roadway supports with different opening angles. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is the front view of the present utility model;

[0018] Figure 3 is the side view of the present utility model.

[0019] The reference numerals shown in the drawings: 1, arc-shaped support; 2, connecting plate; 3, connecting seat; 4, vibrating wire strain gauge; 5, hinge seat; 6, connecting block; 7, mounting hole; 8, hydraulic cylinder; 9, support plate; 10, groove; 11, magnet. Detailed Embodiment

[0020] In conjunction with the accompanying drawings and specific embodiments, the present utility model will be further described. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by this application.

[0021] Embodiment: A lateral stress detection device for a roadway supported by a shed

[0022] As Figures 1-3 shown, a lateral stress detection device for a roadway supported by a shed, its specific structure includes:

[0023] An arc-shaped bracket 1, both ends of the arc-shaped bracket 1 are respectively hinged and installed with connecting plates 2, both sides of the concave surface of the arc-shaped bracket 1 are symmetrically and fixedly installed with connecting seats 3, a vibrating wire strain gauge 4 is arranged between the two connecting seats 3, and both ends of the vibrating wire strain gauge 4 are respectively fixedly connected with the corresponding connecting seats 3.

[0024] The bottom surfaces of the connecting plates 2 are all fixedly installed with hinge seats 5, both ends of the arc-shaped bracket 1 are fixedly installed with connecting blocks 6 hinged to the hinge seats 5, and mounting holes 7 are respectively opened at the four corners of the top surface of the connecting plates 2. In the use of this structural design, through the mutual cooperation of the hinge seats 5 and the connecting blocks 6, it is convenient for the user to adjust the angle of the connecting plates 2, so as to facilitate the fitting of the connecting plates 2 with the surface of the roadway support. When fixing the connecting plates 2, the user can pass the bolts through the mounting holes 7 and then tighten the bolts in the reserved screw holes arranged on the roadway support, or directly weld the connecting plates 2 to the roadway support by welding. The operation is simple and the use is convenient. The user can select the installation method of the connecting plates 2 according to needs.

[0025] Hydraulic cylinders 8 are respectively hinged and installed at the front and rear parts on both sides of the concave surface of the arc-shaped bracket 1, and the movable ends of the telescopic rods of the hydraulic cylinders 8 are respectively hinged and installed with support plates 9. When this device is in use, the support force of the arc-shaped bracket 1 can be increased through the hydraulic cylinders 8. After the arc-shaped bracket 1 is fixed on the roadway support, the support plates 9 are abutted against the roadway support, and by adjusting the telescopic of the hydraulic cylinders 8, the hydraulic cylinders 8 can be made to press the support plates 9 tightly. When the roadway support deforms due to the lateral pressure of the roadway, the roadway support can transmit the pressure to the arc-shaped bracket 1 through the hydraulic cylinders 8, so that the arc-shaped bracket 1 can apply the pressure to the vibrating wire strain gauge 4 faster, improving the detection efficiency.

[0026] Grooves 10 are respectively opened on the top surfaces of the support plates 9, and magnets 11 are fixedly installed in the grooves 10. When installing the arc-shaped bracket 1, the magnets 11 can be adsorbed on the roadway support, playing a positioning role during installation.

[0027] Working principle:

[0028] When this device is in use, through the mutual cooperation between the arc-shaped support 1 and the connecting plate 2, the arc-shaped support 1 can be installed at the corner of the roadway shed support. When the roadway support deforms due to the extrusion of the roadway, the arc-shaped support 1 will be extruded and deformed by the roadway shed support. The vibrating wire strain gauge 4 can be used to detect the stress change. The structure is simple and easy to use. Through the arc-shaped support 1, the reinforcement effect on the corner of the roadway shed support can also be increased, and the support effect of the roadway shed support can be improved.

[0029] In the explanation of the present utility model, it should be noted that the term nouns representing directions are only for the convenience of description and understanding, and do not uniquely limit the installation positions of the specific technical features, and other installable manners that can be realized are not excluded.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present utility model.

Claims

1. A lateral stress detection device for a roadway supported by a shed, comprising an arc-shaped support (1), characterized in that: Both ends of the arc-shaped bracket (1) are respectively hinged and installed with connecting plates (2). On both sides of the concave surface of the arc-shaped bracket (1), connecting seats (3) are symmetrically and fixedly installed. A vibrating wire strain gauge (4) is arranged between the two connecting seats (3).

2. The lateral stress detection device for a roadway supported by shed sets according to claim 1, characterized in that: On the bottom surfaces of the connecting plates (2), hinge seats (5) are fixedly installed. At both ends of the arc-shaped bracket (1), connecting blocks (6) hinged to the hinge seats (5) are fixedly installed. And mounting holes (7) are respectively formed at the four corners of the top surfaces of the connecting plates (2).

3. The lateral stress detection device for a roadway supported by a shed as claimed in claim 1, wherein: Hydraulic cylinders (8) are respectively hinged and installed at the front and rear parts on both sides of the concave surface of the arc-shaped bracket (1). The movable ends of the telescopic rods of the hydraulic cylinders (8) are respectively hinged and installed with support plates (9).

4. The lateral stress detection device for a roadway supported by a shed according to claim 3, characterized in that: Grooves (10) are respectively formed on the top surfaces of the support plates (9), and magnets (11) are fixedly installed in the grooves (10).

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