Supporting structure for coal mining

Abstract

The utility model discloses a supporting structure for coal mining, which comprises a roadway, and a supporting component is arranged on the inner wall of the roadway. A protective net is arranged on the inner wall of the roadway, an adjusting pad is arranged on the inner wall of the protective net, a first movable frame and a supporting frame are arranged on the inner wall of the adjusting pad, one end of the supporting frame is fixedly connected with the first movable frame, the supporting assembly comprises a second movable frame fixed to the inner wall of the roadway, and the two sides of the second movable frame are movably connected with the first movable frame. The bottom side of the second movable frame is fixedly connected with a connecting rod, one end of the connecting rod is connected with a supporting frame, the supporting frame is fixed to the inner wall of the roadway, and a jack is arranged between the connecting rod and the first movable frame. According to the device, the angles of the first movable frame and the second movable frame can be adjusted, so that the shapes of the first movable frame and the second movable frame are adjusted, and the supporting effect of the first movable frame and the second movable frame on the inner wall of a roadway is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel support, in particular to a support structure for coal mining. Background Art

[0002] Coal mining in my country is mainly carried out underground, which requires the excavation of a large number of tunnels underground. The use of tunnel support to maintain the smooth flow of tunnels and the stability of surrounding rocks is of great significance to coal mine construction and production. The basic purpose of tunnel support is to ease and reduce the movement of surrounding rocks so that the cross-section of the tunnel does not shrink excessively, and at the same time prevent the scattered and damaged surrounding rocks from falling.

[0003] In order to ensure the safety of the tunnel during mining, the inner wall of the tunnel needs to be supported. Most of the existing support devices are fixed in shape and inconvenient to adjust. The inner wall of the tunnel is uneven, and the support device cannot guarantee stable support with the inner wall of the tunnel. Therefore, improvement is needed. Utility Model Content

[0004] The utility model aims to provide a supporting structure for coal mining, so as to solve the problem that the shape of the supporting device proposed in the above background technology is fixed and cannot be adjusted.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a support structure for coal mining, comprising a tunnel, wherein the inner wall of the tunnel is provided with a support assembly;

[0006] The support assembly includes a second movable frame fixed to the inner wall of the tunnel, and the first movable frame is movably connected to both sides of the second movable frame. The first movable frame is provided with multiple frames, and a connecting rod is fixedly connected to the bottom side of the second movable frame. One end of the connecting rod is connected to a support frame, and the support frame is fixed to the inner wall of the tunnel. A jack is provided between the connecting rod and the first movable frame.

[0007] Preferably, the inner wall of the tunnel is provided with a protective net, and the inner wall of the protective net is provided with an adjustment pad.

[0008] Preferably, a first movable frame and a support frame are provided on the inner wall of the adjustment pad, and one end of the support frame is fixedly connected to the first movable frame.

[0009] Preferably, the connecting rods are in an inclined structure, the connecting rods are symmetrically distributed about the bisector of the second movable frame, and a cross bar is fixedly connected between the two groups of connecting rods.

[0010] Preferably, the jacks are horizontally evenly spaced about the top of the connecting rod, a groove is provided on the top of the connecting rod, and the bottom of the jack is located in the groove.

[0011] Preferably, the first movable frame and the second movable frame are spliced ​​to form an arc structure, and the first movable frame and the second movable frame are rotatably connected via a rotating shaft.

[0012] Preferably, the support frames are symmetrically distributed about the bisector of the tunnel, and the support frames are fixedly connected to the tunnel via anchor rods.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The device can adjust the angles of the first movable frame and the second movable frame, thereby adjusting the shapes of the first movable frame and the second movable frame, thereby improving the supporting effect of the first movable frame and the second movable frame on the inner wall of the tunnel.

[0015] (2) The device is provided with a plurality of first movable frames on both sides of the second movable frame. The connection between the first movable frames and the connection between the first movable frames and the second movable frames are connected by a rotating shaft, so that the angles of the first movable frames and the second movable frames can be adjusted, so that the shapes of the first movable frames and the second movable frames fit the inner wall of the tunnel, thereby improving the supporting effect on the tunnel.

[0016] (3) The device arranges adjustment pads between the protective net and the first movable frame and the second movable frame. The adjustment pads can be used to fill the concave parts of the inner wall of the tunnel, thereby improving the flatness of the inner wall of the tunnel and facilitating the support of the first movable frame and the second movable frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of a supporting structure for coal mining according to the utility model;

[0018] Figure 2 The utility model is a support structure for coal mining Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 It is a top view of the connection between the first movable frame and the second movable frame of a supporting structure for coal mining of the utility model;

[0020] Figure 4 The utility model is a top view of a connecting rod of a supporting structure for coal mining.

[0021] In the figure: 1, tunnel; 2, protection net; 3, adjustment pad; 4, support assembly; 41, support frame; 42, connecting rod; 43, cross bar; 44, jack; 45, first movable frame; 46, second movable frame. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a support structure for coal mining, comprising a tunnel 1, wherein a support assembly 4 is arranged on the inner wall of the tunnel 1; a protective net 2 is arranged on the inner wall of the tunnel 1, and an adjustment pad 3 is arranged on the inner wall of the protective net 2; this structure can intercept dust falling from the inner wall of the tunnel 1 by arranging the protective net 2; a first movable frame 45 and a support frame 41 are arranged on the inner wall of the adjustment pad 3, and the support frame 41 is symmetrically distributed about the bisector of the tunnel 1, and the support frame 41 is fixedly connected to the tunnel 1 through an anchor rod; this structure can ensure the stability of the connection between the support frame 41 and the tunnel 1; one end of the support frame 41 is fixedly connected to the first movable frame 45; this structure can fill the gap between the tunnel 1 and the first movable frame 45 and the second movable frame 46 by arranging the adjustment pad 3, thereby ensuring the support effect of the first movable frame 45 and the second movable frame 46;

[0024] The support assembly 4 includes a second movable frame 46 fixed to the inner wall of the tunnel 1, and the first movable frame 45 is movably connected to both sides of the second movable frame 46. The first movable frame 45 is provided with a plurality of first movable frames, and a connecting rod 42 is fixedly connected to the bottom side of the second movable frame 46. The connecting rod 42 is in an inclined structure, and the connecting rod 42 is symmetrically distributed about the bisector of the second movable frame 46. A cross bar 43 is fixedly connected between the two groups of connecting rods 42; this structure can support the connecting rod 42 by setting the cross bar 43 to ensure the stability of the connecting rod 42; one end of the connecting rod 42 is connected to a support frame 41, and the support frame 41 is fixed to the inner wall of the tunnel 1, and a jack 44 is provided between the connecting rod 42 and the first movable frame 45; the first movable frame 45 and the second The movable frames 46 are spliced ​​to form an arc structure, and the first movable frame 45 and the second movable frame 46 are rotatably connected through a rotating shaft; this structure can adjust the angle of the first movable frame 45 by rotating the first movable frame 45, so that the shape formed by the splicing of the first movable frame 45 and the second movable frame 46 better fits the shape of the inner wall of the tunnel 1; the jacks 44 are distributed at equal intervals laterally about the top of the connecting rod 42, and a groove is provided on the top of the connecting rod 42, and the bottom of the jack 44 is located in the groove; this structure can support the first movable frame 45 through the jack 44, thereby ensuring that the first movable frame 45 is tightly fitted with the adjustment pad 3; the jack 44 is a manual jack 44, and the jack 44 is a prior art, so it will not be described in detail here.

[0025] Working principle: When using the support structure for coal mining, first use the anchor rod protection net 2 and the adjustment pad 3 to fix them on the inner wall of the tunnel 1 in sequence. After the protection net 2 and the adjustment pad 3 are fixed, the second movable frame 46 and the support frame 41 are fixed to the top of the tunnel 1 using anchor rods. Then, take out the connecting rod 42 and fix the two ends of the connecting rod 42 on the second movable frame 46 and the support frame 41 with bolts respectively. After the connecting rod 42 is fixed, manually adjust the jack 44 so that the jack 44 pushes the first movable frame 45 to rotate, so that the first movable frame 45 fits against the inner wall of the adjustment pad 3. Finally, use the cross bar 43 to fix it on the inner side of the connecting rod 42 to complete the support of the device and ensure the safety of the tunnel 1.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A support structure for coal mining, comprising a tunnel (1), characterized in that: The inner wall of the tunnel (1) is provided with a support assembly (4); The support assembly (4) comprises a second movable frame (46) fixed to the inner wall of the tunnel (1), both sides of the second movable frame (46) are movably connected to the first movable frame (45), a plurality of first movable frames (45) are provided, a connecting rod (42) is fixedly connected to the bottom side of the second movable frame (46), one end of the connecting rod (42) is connected to a support frame (41), the support frame (41) is fixed to the inner wall of the tunnel (1), and a jack (44) is provided between the connecting rod (42) and the first movable frame (45).

2. A supporting structure for coal mining according to claim 1, characterized in that: The inner wall of the tunnel (1) is provided with a protective net (2), and the inner wall of the protective net (2) is provided with an adjustment pad (3).

3. A supporting structure for coal mining according to claim 2, characterized in that: A first movable frame (45) and a support frame (41) are provided on the inner wall of the adjustment pad (3); one end of the support frame (41) is fixedly connected to the first movable frame (45).

4. A supporting structure for coal mining according to claim 1, characterized in that: The connecting rods (42) are of an inclined structure, and the connecting rods (42) are symmetrically distributed about the bisector of the second movable frame (46). A crossbar (43) is fixedly connected between the two groups of connecting rods (42).

5. A supporting structure for coal mining according to claim 1, characterized in that: The jacks (44) are distributed at equal intervals in the transverse direction with respect to the top of the connecting rod (42); a groove is provided at the top of the connecting rod (42), and the bottom of the jacks (44) is located in the groove.

6. A supporting structure for coal mining according to claim 1, characterized in that: The first movable frame (45) and the second movable frame (46) are spliced ​​to form an arc-shaped structure, and the first movable frame (45) and the second movable frame (46) are rotatably connected via a rotating shaft.

7. A supporting structure for coal mining according to claim 1, characterized in that: The support frames (41) are distributed symmetrically with respect to the bisector of the tunnel (1), and the support frames (41) are fixedly connected to the tunnel (1) via anchor rods.

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