Crawler-type supporting bracket for underground coal mine roadway

Abstract

The utility model discloses a crawler-type supporting bracket for an underground coal mine roadway, and relates to the technical field of underground coal mine roadway supporting. The device comprises a crawler, a bottom plate is mounted on a frame of the crawler, and two vertical hydraulic cylinders are mounted on the upper surface of the bottom plate; a top plate is mounted at the tops of the two hydraulic cylinders; an equipment box is mounted on the upper surface of the bottom plate; an oil tank and an oil pressure pump are mounted in the equipment box; the input end of the oil hydraulic pump communicates with the oil tank through a first pipeline provided with a first valve, the output end of the oil hydraulic pump communicates with an oil injection hole of the hydraulic cylinder, and an oil outlet hole of the hydraulic cylinder communicates with the top of the oil tank through a second pipeline provided with a second valve. Two ends of the frame are respectively connected with a stabilizing body capable of moving up and down through a connecting structure. According to the utility model, the two ends of the frame are respectively connected with the stabilizing bodies capable of moving up and down through the connecting structures, so that the supporting bracket is convenient to use by controlling the up-and-down movement of the stabilizing bodies during use.

Description

Technical Field

[0001] This utility model belongs to the field of coal mine underground roadway support technology, and in particular relates to a tracked support bracket for coal mine underground roadways. Background Technology

[0002] In coal mines, it is often necessary to support the roof of roadways. Previously, timber stacks were used for this purpose. Currently, unit supports are used, but these are inconvenient to move; transporting them from one location to another is laborious, inefficient, and involves high manual labor intensity. Therefore, a temporary support system that can support underground coal mine roadways and is easily movable is needed. Summary of the Invention

[0003] The purpose of this utility model is to provide a tracked support for underground roadways in coal mines. By installing hydraulic cylinders and a base plate on the frame of the tracked vehicle, the extension and retraction of the tracked vehicle and the hydraulic cylinders can be controlled during use, thereby facilitating the deployment of the support and solving the problems raised in the prior art.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a tracked support frame for underground coal mine roadways, comprising a tracked vehicle. A base plate is mounted on the frame of the tracked vehicle. Two vertically oriented hydraulic cylinders are mounted on the upper surface of the base plate. A top plate is mounted on top of the two hydraulic cylinders. An equipment box is mounted on the upper surface of the base plate, containing an oil tank and a hydraulic pump. The input end of the hydraulic pump is connected to the oil tank via a pipeline equipped with a first valve. The output end of the hydraulic pump is connected to the oil injection port of the hydraulic cylinder. The oil outlet of the hydraulic cylinder is connected to the top of the oil tank via a second pipeline equipped with a second valve. Vertically movable stabilizing bodies are connected to both ends of the frame via connecting structures.

[0006] Furthermore, the connection structure includes a rotating arm rotatably mounted on the frame via a pivot, with the upper surface of the stabilizer connected to the end of the rotating arm; a telescopic cylinder A is also rotatably mounted on the frame, with the end of the telescopic cylinder A hinged to the middle of the rotating arm and driving the rotating arm to rotate along the pivot.

[0007] Furthermore, the output end of the hydraulic pump is connected to the oil filling hole of the telescopic cylinder A through a pipeline with valve three, and to the top of the oil tank through a pipeline with valve four; the output end of the hydraulic pump is connected to the oil outlet hole of the telescopic cylinder A through a pipeline with valve five.

[0008] Furthermore, both ends of the frame are provided with horizontal blind holes A. The bottom side of the blind hole A is connected to a movable column that slides along the inner wall of the blind hole A via a spring A. The end of the movable column is connected to a drive block that abuts against the lower surface of the rotating arm. The end of the drive block is provided with an arc-shaped surface that cooperates with the rotating arm. The bottom side of the blind hole A is connected to a top column via an elastic block. The end of the top column is provided with a pressure sensor A.

[0009] Furthermore, the inner wall of the blind hole A is provided with a limiting block to restrict the sliding of the movable column along the inner wall of the blind hole A.

[0010] Furthermore, the connection structure includes a telescopic cylinder B fixed vertically on the frame, with the end of the telescopic cylinder B connected to the upper surface of the stabilizer; the upper surface of the stabilizer is provided with a protrusion, and a vertical blind hole B is provided on the frame directly above the protrusion; a movable rod that slides along the inner wall of the blind hole B is connected to the blind hole B by a spring B, and a pressure sensor B is provided at the end of the movable rod.

[0011] Furthermore, the protrusion is provided with a horizontal through hole; a support rod is provided inside the frame, and a telescopic cylinder C is provided inside the support rod, which is flexibly connected to the support rod and drives the support rod to move in the horizontal direction.

[0012] This utility model has the following beneficial effects:

[0013] This utility model involves installing a hydraulic cylinder and a base plate on the chassis of a tracked vehicle to control the movement of the tracked vehicle and the extension and retraction of the hydraulic cylinder during use, thereby facilitating the deployment of the support bracket. Simultaneously, vertically movable stabilizing bodies are connected to both ends of the chassis via a connecting structure, allowing for convenient use of the support bracket by controlling the vertical movement of these stabilizing bodies.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the tracked support structure of this utility model. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure at blind hole A of this utility model;

[0018] Figure 3 This is a diagram of the oil supply system of the hydraulic pump of this utility model;

[0019] Figure 4 This is a schematic diagram of the tracked support structure of this utility model. Figure 2 ;

[0020] Figure 5 for Figure 4 Enlarged view of a portion of point A in the middle;

[0021] The attached diagram lists the components represented by each number as follows:

[0022] The table below shows the correspondence between technical features and figure labels based on the document content:

[0023] 1-Crawler vehicle, 2-Base plate, 21-Hydraulic cylinder, 22-Top plate, 24-Equipment box, 31-Oil tank, 3-Hydraulic pump, 32-Pipeline 1, 321-Valve 1, 33-Pipeline 2, 331-Valve 2, 13-Stabilizer, 12-Rotating arm, 14-Telescopic cylinder A, 35-Pipeline 3, 351-Valve 3, 37-Pipeline 4, 352-Valve 4, 36-Pipeline 5, 361-Valve 5, 10-Blind hole A, 104-Spring A, 105-Moving column, 106-Drive block, 107-Arc-shaped surface, 100-Elastic block, 101-Top column, 102-Pressure sensor A, 108-Limit block, 15-Telescopic cylinder B, 131-Protrusion, 111-Moving rod, 110-Support rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Please see Figure 1As shown, this utility model is a tracked support for underground coal mine roadways, including a tracked vehicle 1. A base plate 2 is installed on the frame of the tracked vehicle 1. Two vertically oriented hydraulic cylinders 21 are installed on the upper surface of the base plate 2. A top plate 22 is installed on the top of the two hydraulic cylinders 21. An equipment box 24 is installed on the upper surface of the base plate 2. An oil tank 31 and a hydraulic pump 3 are installed inside the equipment box 24. The two ends of the frame are respectively connected to vertically movable stabilizers 13 through a connecting structure. In use, the vertical movement of the stabilizers is controlled to facilitate the use of the support. In use, the tracked support is moved to the required position by controlling the movement of the tracked vehicle 1. At the same time, the hydraulic pump 3 and the oil tank 31 are used to drive the hydraulic cylinders 21 to extend and retract, which facilitates the unfolding and folding of the tracked support.

[0027] Based on the above, when it is necessary to control the movement of the tracked vehicle 1, the stabilizer 13 moves upward to lift off the ground; when the tracked vehicle 1 is moved to the desired position, the stabilizer 13 moves downward until the bottom side of the stabilizer 13 contacts the ground.

[0028] Specifically, in order to facilitate the extension and retraction of the hydraulic cylinder 21 by using the hydraulic pump 3, the input end of the hydraulic pump 3 is connected to the oil tank 31 through the pipeline 32 with valve 321, the output end of the hydraulic pump 3 is connected to the oil filling hole of the hydraulic cylinder 21, and the oil outlet of the hydraulic cylinder 21 is connected to the top of the oil tank 31 through the pipeline 33 with valve 331.

[0029] Method 1: For example Figure 3 The provided connection structure includes a rotating arm 12 rotatably mounted on the frame via a pivot, and the upper surface of a stabilizer 13 connected to the end of the rotating arm 12; a telescopic cylinder A14 is also rotatably mounted on the frame, the end of the telescopic cylinder A14 is hinged to the middle of the rotating arm 12 and drives the rotating arm 12 to rotate along the pivot; the output end of the hydraulic pump 3 is connected to the oil injection port of the telescopic cylinder A14 via a pipe 35 with a valve 351, and is connected to the top of the oil tank 31 via a pipe 47 with a valve 45; the output end of the hydraulic pump 3 is connected to the oil outlet port of the telescopic cylinder A14 via a pipe 56 with a valve 561.

[0030] Method 2: For example Figure 4-5 The connecting structure includes a telescopic cylinder B15 fixed vertically on the frame, and the end of the telescopic cylinder B14 is connected to the upper surface of the stabilizer 13. The upper surface of the stabilizer 13 is provided with a protrusion 131, and a vertical blind hole B is provided on the frame directly above the protrusion 131. A movable rod 111 that slides along the inner wall of the blind hole B is connected to the blind hole B by a spring B. A pressure sensor B is provided at the end of the movable rod 111.

[0031] Based on method one, such as Figure 2In order to facilitate the downward movement of the stabilizer 13 until it touches the ground and then stop the retraction of the telescopic cylinder A14, this application provides horizontal blind holes A10 at both ends of the frame. The bottom side of the blind hole A10 is connected to a movable column 105 that slides along the inner wall of the blind hole A10 via a spring A104. The end of the movable column 105 is connected to a drive block 106 that abuts against the lower surface of the rotating arm 12. The end of the drive block 106 is provided with an arc-shaped surface 107 that cooperates with the rotating arm 12. The bottom side of the blind hole A10 is connected to a top column 101 via an elastic block 100. The end of the top column 101 is provided with a pressure sensor A102. The pressure sensor A102 is connected to a processor, which is connected to an indicator light and the aforementioned hydraulic pump 3, valve 321, valve 351, etc. In other words, when the pressure sensor A102 detects a signal during use, the processor controls the operation of the hydraulic pump 3 and valves 321, 351, etc., thereby controlling the extension and retraction of the telescopic cylinder A14.

[0032] Specifically, the inner wall of the blind hole A10 is provided with a limiting block 108 to restrict the sliding of the movable column 105 along the inner wall of the blind hole A10.

[0033] Based on the second method, a horizontal through hole is provided on the protrusion 131; a support rod 110 is provided inside the frame, and a telescopic cylinder C is provided inside the support rod 110, which is flexibly connected to the support rod 110 and drives the support rod 110 to move in the horizontal direction. The telescopic cylinder C adopts the same connection method as the telescopic cylinder A14 and the hydraulic pump 3. That is, during use, the telescopic cylinder C is controlled by operating the hydraulic pump 3 and valves 321 and 351.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A tracked support system for underground coal mine roadways, characterized in that: Includes a tracked vehicle (1), on which a base plate (2) is mounted, and on the upper surface of the base plate (2) are two vertically oriented hydraulic cylinders (21). A top plate (22) is mounted on the top of the two hydraulic cylinders (21); An equipment box (24) is installed on the upper surface of the base plate (2), and an oil tank (31) and an oil pressure pump (3) are installed inside the equipment box (24). The input end of the hydraulic pump (3) is connected to the oil tank (31) through the pipeline (32) with valve (321), the output end of the hydraulic pump (3) is connected to the oil injection hole of the hydraulic cylinder (21), and the oil outlet of the hydraulic cylinder (21) is connected to the top of the oil tank (31) through the pipeline (33) with valve (331). The two ends of the frame are respectively connected to vertically movable stabilizers (13) via a connecting structure.

2. The tracked support for underground coal mine roadways according to claim 1, characterized in that, The connection structure includes a rotating arm (12) rotatably mounted on the frame via a pivot, and the upper surface of the stabilizer (13) is connected to the end of the rotating arm (12); A telescopic cylinder A (14) is also rotatably mounted on the frame. The end of the telescopic cylinder A (14) is hinged to the middle of the rotating arm (12) and drives the rotating arm (12) to rotate along the axis.

3. A tracked support for underground coal mine roadways according to claim 2, characterized in that, The output end of the hydraulic pump (3) is connected to the oil injection hole of the telescopic cylinder A (14) through the pipeline three (35) with valve three (351), and to the top of the oil tank (31) through the pipeline four (37) with valve four (352); The output end of the hydraulic pump (3) is connected to the oil outlet of the telescopic cylinder A (14) through the pipeline five (36) equipped with valve five (361).

4. A tracked support for underground coal mine roadways according to claim 2 or 3, characterized in that, Both ends of the frame are provided with horizontal blind holes A (10). The bottom side of the blind hole A (10) is connected to a movable column (105) that slides along the inner wall of the blind hole A (10) via a spring A (104). The end of the movable column (105) is connected to a drive block (106) that abuts against the lower surface of the rotating arm (12). The end of the drive block (106) is provided with an arc-shaped surface (107) that cooperates with the rotating arm (12). The bottom side of the blind hole A (10) is connected to the top post (101) via an elastic block (100), and a pressure sensor A (102) is provided at the end of the top post (101).

5. A tracked support for underground coal mine roadways according to claim 4, characterized in that, The inner wall of the blind hole A (10) is provided with a limiting block (108) to restrict the sliding of the movable column (105) along the inner wall of the blind hole A (10).

6. A tracked support for underground coal mine roadways according to claim 1, characterized in that, The connection structure includes a telescopic cylinder B (15) fixed vertically on the frame, and the end of the telescopic cylinder B (14) is connected to the upper surface of the stabilizer (13); The upper surface of the stabilizer (13) is provided with a protrusion (131), and a vertical blind hole B is provided on the frame located directly above the protrusion (131). A movable rod (111) that slides along the inner wall of the blind hole B is connected to the blind hole B by a spring B. A pressure sensor B is provided at the end of the movable rod (111).

7. A tracked support for underground coal mine roadways according to claim 6, characterized in that, The protrusion (131) is provided with a horizontal through hole; The frame is provided with a support rod (110), and the support rod (110) is provided with a telescopic cylinder C that is flexibly connected to the support rod (110) and drives the support rod (110) to move in the horizontal direction.

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