A fully mechanized coal mining face support device

Abstract

This invention relates to the field of underground support equipment technology, and discloses a support device for fully mechanized mining faces, including a telescopic rod and a support plate disposed at its output end, and at least one auxiliary support component disposed on any side of the lower surface of the support plate; the auxiliary support component includes two rotating shafts rotatably disposed on the support plate, each rotating shaft having a gear fixedly connected to it, and the two gears meshing together, with a rotating plate fixedly connected to the rotating shaft. This invention employs a combination of auxiliary support components and shielding components. When the coal mine strata requiring support are relatively soft, the rotation of the gears drives the rotating plate to rotate synchronously, sending the support bar to the designated position for auxiliary support. Simultaneously, the unfolding of the flexible cloth overcomes the problem of dust easily falling into the operator's eyes during installation or disassembly, improving the practicality of the device.

Description

Technical Field

[0001] This invention relates to the field of underground support equipment technology, specifically a support device for fully mechanized mining faces. Background Technology

[0002] Coal mine support is a series of measures taken to protect the working face of a coal mine and prevent collapses and landslides. The importance of this work is self-evident, as effective support directly relates to miners' safety and the stability of coal mine production. The primary function of coal mine support is to ensure miners' safety. During coal mining, the working face is an area highly susceptible to collapses and landslides; effective support helps maintain the stability of the entire mine. If a landslide occurs, it not only threatens the lives of miners but may also lead to the collapse of the coal mine tunnel, affecting the overall stability of the mine.

[0003] Existing support devices can generally perform support work well. However, in actual operation, due to the different conditions of different mines, for example, when supporting coal mines with relatively soft coal seams, the support devices often need to be arranged closely. In this case, large support devices are not suitable, and manual operation is often required. When cooperating with manual positioning of the support devices, the operator needs to look upwards. At this time, the soft rock layer is very easy to fall dust, which can enter the operator's eyes, nose and mouth, posing a certain safety hazard. Summary of the Invention

[0004] The purpose of this invention is to provide a support device for fully mechanized mining faces to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fully mechanized mining face support device, comprising a telescopic rod and a support plate disposed at its output end, and further comprising:

[0006] At least one auxiliary support component is disposed on any side of the lower surface of the support plate; the auxiliary support component includes two rotating shafts rotatably disposed on the support plate, each rotating shaft is fixedly connected to a gear, and the two gears are meshed together, a rotating plate is fixedly connected to the rotating shaft, and a support bar is disposed at the end of each rotating plate away from the rotating shaft, and at least one bolt hole is provided on the support bar;

[0007] A shielding assembly is used to catch impurities that fall during the installation or disassembly of this device; the shielding assembly includes a number of flexible cloths corresponding to the rotating plate, the two sides of the flexible cloths are respectively connected to the support plate and the corresponding rotating plate, and the flexible cloths are arranged in a predetermined shape.

[0008] Preferably, the number of auxiliary support components is set to two.

[0009] Preferably, the two support bars located in the width direction of the support plate are arranged on the same side of the corresponding rotating plate.

[0010] Preferably, the flexible fabric is made of an elastic material, and the shape of the flexible fabric is either a square or an isosceles triangle.

[0011] Preferably, when the flexible fabric is square, a counterweight hook is installed on the unused end of the flexible fabric.

[0012] Preferably, each of the support bars is fixedly connected to the corresponding rotating plate.

[0013] Preferably, each of the rotating plates is slidably connected to an extension plate, which extends to one end of the rotating plate and is fixedly connected to the support bar.

[0014] Preferably, each of the rotating plates is provided with a magnet one on the side near the support plate, and a magnet two with opposite magnetic poles is provided at the corresponding position on the support plate.

[0015] Preferably, each of the rotating plates is threaded with a tightening bolt, and when the tightening bolt is tightened, one end of the tightening bolt extending into the rotating plate abuts against the extension plate.

[0016] Preferably, each of the tightening bolts is fixedly connected to a magnet three, and a magnet four with opposite magnetic poles is provided at a corresponding position on the support plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] (1) This embodiment adopts the technical means of combining auxiliary support components and shielding components. When the coal mine rock strata that need to be supported are relatively soft, the gear rotation drives the rotating plate to rotate synchronously, and the support bar is sent to the designated position for auxiliary support. At the same time, with the unfolding of the flexible cloth, the problem of dust easily falling into the operator's eyes when installing or disassembling this device is overcome, and the practicality of this device is improved.

[0019] (2) This embodiment uses a combination of flexible cloth and counterweight hooks. By unfolding the square flexible cloth, the top area of ​​the coal mine can be effectively covered. At the same time, the counterweight hooks enhance the stability after connection, further improving the practicality of the device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the invention in its unused state;

[0021] Figure 2 In this invention Figure 1 A schematic diagram of the 3D structure after switching perspectives;

[0022] Figure 3 This is a three-dimensional structural diagram of one embodiment of the present invention;

[0023] Figure 4 This is a three-dimensional structural diagram of another embodiment of the present invention.

[0024] In the diagram: 100, telescopic pole; 101, support plate;

[0025] 200. Auxiliary support assembly; 201. Rotating shaft; 202. Gear; 203. Rotating plate; 204. Support bar; 205. Extension plate; 206. Magnet one; 207. Tightening bolt; 208. Magnet three;

[0026] 300, shielding component; 301, flexible fabric; 302, counterweight hook. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figure 1 - Figure 4 The present invention provides a technical solution: a fully mechanized mining face support device, including a telescopic rod 100 and a support plate 101 disposed at its output end, and at least one auxiliary support component 200 disposed on any side of the lower surface of the support plate 101; the auxiliary support component 200 includes two rotating shafts 201 rotatably disposed on the support plate 101, each rotating shaft 201 is fixedly connected to a gear 202, and the two gears 202 are meshed together, a rotating plate 203 is fixedly connected to the rotating shaft 201, and a support bar 204 is disposed at the end of each rotating plate 203 away from the rotating shaft 201, and at least one bolt hole is provided on the support bar 204;

[0029] The shielding component 300 is used to catch impurities falling from the top of the tunnel during the installation or disassembly of this device. The shielding component 300 includes a number of flexible cloths 301 corresponding to the rotating plate 203. The two sides of the flexible cloths 301 are respectively connected to the support plate 101 and the corresponding rotating plate 203, and the flexible cloths 301 are arranged in a predetermined shape.

[0030] The working principle and beneficial effects of this embodiment are as follows: When it is necessary to support the top area of ​​a coal mine, multiple of these devices are often arranged in at least two rows, leaving a passage for workers to pass through. Normally, the spacing in the middle is relatively wide to facilitate the passage of people and small machinery. When the rock strata in the top area are relatively loose, in order to avoid roof collapse, the spacing between the two rows of devices needs to be reduced accordingly before installation. Since loose rock strata are more prone to surface impurities falling off, when installing this device, first turn one of the rotating plates 203, driving the corresponding rotating shaft 201 to rotate synchronously, which in turn drives the gear 202 to rotate, causing the two gears 202 to rotate in opposite directions, thereby bringing the ends of the two rotating plates 203 that are far apart closer together, until the two... The rotating plates 203 abut against each other, and the support bars 204 at the ends of the two rotating plates 203 are also in contact with each other, with the bolt holes on both overlapping. The bolts are then tightened by passing the bolt holes through the bolts. As the rotating plates 203 rotate, the flexible cloth 301 connected to them is extended to form a shielding barrier to catch dust and other impurities that may fall from the top of the tunnel. This can effectively prevent dust from falling into the eyes of the operator directly below when supporting this device. At this time, the moving end of the telescopic rod is extended upward until the support plate 101 is in contact with the top of the tunnel. The height of the upper surface of the support bar 204 is the same as the height of the upper surface of the support plate 101, and it is also in contact with the top of the tunnel, playing an auxiliary support role.

[0031] In a further embodiment: the number of auxiliary support components 200 is set to two.

[0032] The working principle and beneficial effects of this embodiment are as follows: Two auxiliary support components 200 are respectively arranged on both sides of the support plate 101, which can form auxiliary support on both the left and right sides, adapting to the scenario of wide roadways that require multiple rows of support, and further improving the practicality of this device.

[0033] In a further embodiment: two support bars 203 located in the width direction of the support plate 101 are arranged on the same side of the corresponding rotating plate 204.

[0034] The working principle and beneficial effects of this embodiment are as follows: Two support bars 203 located in the width direction of the support plate 101 are set on the same side of the corresponding rotating plate 204. When two rows of this device are set for support, after the two rotating plates 203 on one row of this device approach each other, the two support bars 204 on them abut against each other and cooperate to form a protrusion. After the two rotating plates 203 on the other row of this device approach each other, the two support bars 204 are parallel and cooperate with the rotating plate 203 to form a groove for the above-mentioned protrusion to be inserted. When installing this device, the distance between the two rows of this device is set in advance so that the above-mentioned protrusion just passes through the above-mentioned groove and the multiple bolt holes on it just overlap. At this time, fastening bolts are passed through the bolt holes for fastening, so that the auxiliary support components of the two rows of this device form a cooperation. While improving the support effect, it can also prevent a single device from tilting during installation, forming a mutual restraint and assisting in the correction of the installation effect.

[0035] In a further embodiment: the flexible fabric 301 is made of an elastic material, and the shape of the flexible fabric 301 is either a square or an isosceles triangle.

[0036] The working principle and beneficial effects of this embodiment are as follows: the flexible cloth 301 is set as a triangle, which can reduce the cost of the cloth while ensuring the dust blocking effect when installing or disassembling the device. The square cloth can increase the dust blocking area and further improve the practicality.

[0037] In a further embodiment: when the flexible fabric 301 is set as a square, a counterweight hook 302 is installed on the unused end of the flexible fabric 301.

[0038] The working principle and beneficial effects of this embodiment are as follows: Since this device is typically arranged in a multi-row array, setting the flexible cloth 301 to a square increases the covering area. Multiple adjacent flexible cloths 301 can cooperate with each other. Because the flexible cloth 301 is made of elastic material, pulling the four adjacent counterweight hooks 302 together tightens the multiple flexible cloths, resulting in better dust blocking and preventing any unconnected corners of the flexible cloth from sagging, further improving the device's practicality. Simultaneously, when the device is retracted, the counterweight hooks 302 automatically drop, causing the flexible cloth 301 to fold downwards automatically. Accumulated dust can then be discharged downwards along the grooves formed by the folds, automatically cleaning the dust from the flexible cloth 301. Furthermore, when not in use, two adjacent counterweight hooks 302 on a single device can be hooked together to prevent the counterweight hooks 302 from swaying or getting caught in unnecessary places when moving the device, further enhancing the device's practicality.

[0039] In a further embodiment: each support bar 204 is fixedly connected to the corresponding rotating plate 203.

[0040] The working principle and beneficial effects of this embodiment are as follows: the support bar 204 is fixedly connected to the rotating plate 203, which can reduce production costs and is suitable for scenarios with fixed installation spacing.

[0041] In a further embodiment: each rotating plate 203 is slidably connected to an extension plate 205, which extends to one end of the rotating plate 203 and is fixedly connected to the support bar 204.

[0042] The working principle and beneficial effects of this embodiment are as follows: by adjusting the length of the extension plate 205 extending out of the rotating plate 203, this device can adapt to different spacing support scenarios, further improving the practicality of this device.

[0043] In a further embodiment: each rotating plate 203 is provided with a magnet 206 on the side near the support plate 101, and a magnet 206 with opposite magnetic poles is provided at the corresponding position on the support plate 101.

[0044] The working principle and beneficial effects of this embodiment are as follows: the rotating plate 203 is fixed in place by the attraction between magnet 1 206 and magnet 2, preventing it from shaking randomly.

[0045] In a further embodiment: each rotating plate 203 is threaded with a tightening bolt 207, and when the tightening bolt 207 is tightened, one end of the tightening bolt 207 extending into the rotating plate 203 abuts against the extension plate 205.

[0046] The working principle and beneficial effects of this embodiment are as follows: tightening the screw bolt 207 can fix the extension plate 205, and loosening it can adjust the length of the extension plate 205.

[0047] In a further embodiment: each tightening bolt 207 is fixedly connected to a magnet 208, and a magnet 4 with opposite magnetic poles is provided at the corresponding position on the support plate 101.

[0048] The working principle and beneficial effects of this embodiment are as follows: the rotating plate 203 is indirectly fixed by the attraction of magnet 3 208 and magnet 4, preventing it from shaking randomly.

[0049] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A support device for a fully mechanized mining face, comprising a telescopic rod (100) and a support plate (101) disposed at its output end, characterized in that, Also includes: At least one auxiliary support component (200) is disposed on any side of the lower surface of the support plate (101); the auxiliary support component (200) includes two rotating shafts (201) rotatably disposed on the support plate (101), each rotating shaft (201) is fixedly connected to a gear (202), and the two gears (202) are meshed together; a rotating plate (203) is fixedly connected to the rotating shaft (201), and a support strip (204) is provided at one end of each rotating plate (203) away from the rotating shaft (201), and at least one bolt hole is provided on the support strip (204); The shielding assembly (300) is used to receive impurities falling from the top of the tunnel during the installation or disassembly of this device; the shielding assembly (300) includes a number of flexible cloths (301) corresponding to the rotating plate (203), the two sides of the flexible cloths (301) are respectively connected to the support plate (101) and the corresponding rotating plate (203), and the flexible cloths (301) are arranged in a predetermined shape.

2. The fully mechanized mining face support device according to claim 1, characterized in that: The number of auxiliary support components (200) is set to two.

3. A fully mechanized mining face support device according to claim 2, characterized in that: Two support bars (203) located in the width direction of the support plate (101) are set on the same side of the corresponding rotating plate (204).

4. A fully mechanized mining face support device according to claim 3, characterized in that: The flexible fabric (301) is made of an elastic material, and the shape of the flexible fabric (301) is either a square or an isosceles triangle.

5. A fully mechanized mining face support device according to claim 4, characterized in that: When the flexible fabric (301) is set as a square, a counterweight hook (302) is installed on the unused end of the flexible fabric (301).

6. A fully mechanized mining face support device according to claim 5, characterized in that: Each of the support bars (204) is fixedly connected to the corresponding rotating plate (203).

7. A fully mechanized mining face support device according to claim 5, characterized in that: Each of the rotating plates (203) is slidably connected to an extension plate (205), which extends to one end of the rotating plate (203) and is fixedly connected to the support bar (204).

8. A fully mechanized mining face support device according to claim 6, characterized in that: Each of the rotating plates (203) is provided with a magnet (206) on the side near the support plate (101), and a magnet (206) with opposite magnetic poles is provided at the corresponding position on the support plate (101).

9. A fully mechanized mining face support device according to claim 7, characterized in that: Each of the rotating plates (203) is threaded with a tightening bolt (207), and when the tightening bolt (207) is tightened, one end of the tightening bolt (207) extending into the rotating plate (203) abuts against the extension plate (205).

10. A fully mechanized mining face support device according to claim 9, characterized in that: Each of the tightening bolts (207) is fixedly connected to a magnet three (208), and a magnet four with opposite magnetic poles is provided at the corresponding position on the support plate (101).

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