Coal mine tunnel supporting device

Abstract

The utility model relates to the technical field of coal mine supporting, in particular to a coal mine tunnel supporting device which comprises a main supporting frame, and the bottom end of the main supporting frame is inserted into a telescopic adjusting hole in a penetrating mode. Firstly, a main supporting frame is inserted into a telescopic adjusting hole in the top end of a fixed base, the main supporting frame slides to the bottommost end in the fixed base, the overall height of equipment is reduced, and then the fixed base is fixed to a fixed base on the ground; a plurality of hydraulic rods in the top base are controlled to run and extend, so that connecting rods mounted at the top ends of the hydraulic rods extend through splicing of through inserting pieces and mounting inserting grooves, and the height of a supporting plate is increased until a buffering cushion layer abuts against the roadway top to complete extension; abrasion generated when the roadway top makes contact with the supporting plate is avoided through the buffering cushion layer, a certain buffering effect is achieved, the stable auxiliary frame is matched with the main supporting frame and the top base to form a stable structure, and therefore loss of equipment in the using process is reduced, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine support, in particular to a coal mine roadway support device. Background Technique

[0002] In China, coal mines are mainly underground mines, and a large number of roadways need to be excavated underground. Using roadway support to keep the roadway unobstructed and the surrounding rock stable is of great significance to coal mine construction and production. The coal mining roadway support device is a device used to support and protect the coal mining roadway, relieve and reduce the movement of the surrounding rock, so that the roadway section will not be overly reduced, and at the same time prevent the caving of the scattered and damaged surrounding rock. It has been widely used in the field of coal mining.

[0003] The published patent No. CN210660145U discloses a coal mine roadway support device, which is fixed on the upper part of the adjusting plate through a spring; the uneven surface at the top of the roadway provides relatively comprehensive support and provides a supporting force for the suspended part. However, during the use of this support device, the support plate of the overall equipment is in direct contact with the top of the roadway, and most of the top of the roadway is irregular. Therefore, a certain intensity of pressure will be generated on the support plate during contact, wearing the support plate and reducing the service life of the equipment. Moreover, during the use process, only the vertical structure connection method is used for support and protection, and the overall bearing points of the equipment are located at the corners of each structure, resulting in relatively low support strength. For this reason, we propose a coal mine roadway support device. Content of the Utility Model

[0004] In view of the problems in the prior art, the utility model provides a coal mine roadway support device.

[0005] The technical solution adopted by the utility model to solve its technical problems is a coal mine roadway support device, including a main support frame, the bottom end of the main support frame is inserted through the inside of a telescopic adjustment hole, and the telescopic adjustment hole is opened at the center of the top end of a fixed base. There are two main support frames, and the top ends of the two main support frames are fixedly connected to the bottom ends on both sides of the top base. The side wall of the top end of the main support frame forms a stable structure with the bottom end of the top base through a stable auxiliary frame;

[0006] A hydraulic rod is fixedly installed inside the top base, the top end of the hydraulic rod is fixedly connected to a through plug-in, the top end of the through plug-in is detachably installed inside an installation slot, the top end of the installation slot is fixedly connected to the bottom end of a connecting rod, and the top end of the connecting rod is fixedly connected to a support plate.

[0007] By adopting the above technical solution, first insert the main support frame into the telescopic adjustment hole at the top of the fixed base. The main support frame slides to the bottommost part inside the fixed base, reducing the overall height of the device. Subsequently, fix the fixed base to the fixed base on the ground; adjust the overall height of the device to a suitable height by stretching the main support frame, and then insert the rotating fixing piece into the side wall of the fixed base to fix the height. By controlling the operation and extension of multiple hydraulic rods inside the top base, the connecting rod installed at the top of the hydraulic rod through the splicing of the through plug and the installation slot extends, raising the height of the support plate until the buffer cushion layer abuts against the roadway roof to complete the extension. The buffer cushion layer is used to avoid the wear generated when the roadway roof contacts the support plate and plays a certain buffering role. The stable auxiliary frame is used to cooperate with the main support frame and the top base to form a stable structure, thereby reducing the loss during the use of the device and improving the service life of the device.

[0008] Specifically, the support plate slides in the sliding cavity opened at the top of the top base through the connecting rod.

[0009] By adopting the above technical solution, the height of each support plate is adjusted corresponding to the irregular roadway roof through the connecting rod sliding in the sliding cavity, thereby reducing the occurrence of a situation where the gap between the roadway roof and the support plate is too large.

[0010] Specifically, a buffer cushion layer for reducing pressure and buffering is fixedly connected to the top end of the support plate.

[0011] By adopting the above technical solution, the buffer cushion layer is placed between the support plate and the roadway roof to avoid the wear of the uneven roadway roof affecting the support effect of the support plate.

[0012] Specifically, a rotating fixing piece for fixing the position of the main support frame is inserted into the side wall of the fixed base.

[0013] By adopting the above technical solution, the height adjustment and fixation are completed by inserting the rotating fixing piece into the hole penetratingly opened on the side wall of the main support frame.

[0014] Specifically, the fixed base is fixed to the ground through each extension support plate at the bottom.

[0015] By adopting the above technical solution, the device is installed and fixed inside the roadway through the fixed base, and the roof of the mine pit is supported through the mutual cooperation of multiple support devices.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The technical solution of this application is designed with a main support frame, a fixed base, a rotating fixing part, a stable auxiliary frame, a top base, a hydraulic rod, a support plate, a buffer cushion layer, a through plug-in, an installation slot, and a connecting rod. First, insert the main support frame into the telescopic adjustment hole at the top of the fixed base. The main support frame slides to the bottom inside the fixed base to reduce the overall height of the device. Then, fix the fixed base to the fixed base on the ground. Adjust the overall height of the device to a suitable height by stretching the main support frame. Then, insert the rotating fixing part into the side wall of the fixed base to fix the height. By controlling the operation and extension of multiple hydraulic rods inside the top base, the connecting rod installed at the top of the hydraulic rod through the splicing of the through plug-in and the installation slot extends, raising the height of the support plate until the buffer cushion layer abuts against the roadway roof to complete the extension. The buffer cushion layer is used to avoid the wear generated when the roadway roof contacts the support plate and plays a certain buffering role. The stable auxiliary frame is used to cooperate with the main support frame and the top base to form a stable structure, thereby reducing the loss during the use of the device and improving the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present utility model will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 Is an axonometric view of the present utility model;

[0020] Figure 2 Is a schematic structural view of the connection between the main support frame and the fixed base of the present utility model;

[0021] Figure 3 Is a schematic structural view of the inside of the top base of the present utility model;

[0022] Figure 4 For the present utility model Figure 3 Schematic structural view of the structure at position A;

[0023] In the figure: 1. Main support frame; 2. Telescopic adjustment hole; 3. Fixed base; 4. Rotating fixing part; 5. Stable auxiliary frame; 6. Top base; 7. Hydraulic rod; 8. Sliding cavity; 9. Support plate; 10. Buffer cushion layer; 11. Through plug-in; 12. Installation slot; 13. Connecting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the technical means, creative features, achieved purposes, and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] Please refer to Figures 1-3, an embodiment of the present utility model provides a technical solution: a coal mine roadway support device, including a main support frame 1, the bottom end of the main support frame 1 is inserted through the inside of the telescopic adjustment hole 2, and the telescopic adjustment hole 2 is opened at the center of the top end of the fixed base 3. There are two main support frames 1, and the top ends of the two main support frames 1 are fixedly connected to the bottom ends on both sides of the top base 6. The side wall of the top end of the main support frame 1 forms a stable structure with the bottom end of the top base 6 through the stable auxiliary frame 5;

[0026] A hydraulic rod 7 is fixedly installed inside the top base 6. The top end of the hydraulic rod 7 is fixedly connected to a through plug 11. The top end of the through plug 11 is detachably installed inside the installation slot 12. The top end of the installation slot 12 is fixedly connected to the bottom end of the connecting rod 13. The top end of the connecting rod 13 is fixedly connected to a support plate 9.

[0027] During use, first insert the main support frame 1 into the telescopic adjustment hole 2 at the top end of the fixed base 3. The main support frame 1 slides to the bottom end inside the fixed base 3 to reduce the overall height of the device. Then fix the fixed base 3 to the fixed base on the ground; adjust the overall height of the device to a suitable height by stretching the main support frame 1. Then insert the rotating fixing member 4 into the side wall of the fixed base 3 to fix the height. By controlling the operation and extension of multiple hydraulic rods 7 inside the top base 6, the connecting rod 13 installed at the top end of the hydraulic rod 7 through the splicing of the through plug 11 and the installation slot 12 is extended, and the height of the support plate 9 is lifted until the buffer cushion 10 abuts against the roadway roof to complete the extension. The buffer cushion 10 is used to avoid the wear generated when the roadway roof contacts the support plate 9 and plays a certain buffering role. The stable auxiliary frame 5 is used to cooperate with the main support frame 1 and the top base 6 to form a stable structure, thereby reducing the loss during the use of the device and improving the service life of the device.

[0028] As shown in the figure, the support plate 9 slides in a sliding cavity 8 opened at the top end of the top base 6 through the connecting rod 13.

[0029] During use, the height of each support plate 9 is adjusted through the connecting rod 13 sliding in the sliding cavity 8 to correspond to the irregular roadway roof, thereby reducing the occurrence of a situation where the gap between the roadway roof and the support plate 9 is too large.

[0030] As shown in the figure, a buffer cushion 10 for reducing pressure and buffering is fixedly connected to the top end of the support plate 9.

[0031] During use, the buffer cushion 10 is placed between the support plate 9 and the roadway roof to avoid the wear of the uneven roadway roof affecting the support effect of the support plate 9.

[0032] As shown in the figure, a rotating fixing member 4 for fixing the position of the main support frame 1 is inserted into the side wall of the fixed base 3.

[0033] During use, the height adjustment and fixation are completed by rotating the fixing member 4 and inserting it into the hole penetrating through the side wall of the main support frame 1.

[0034] As shown in the figure, the fixed base 3 is fixed to the ground through the extended support plates at the bottom.

[0035] During use, the equipment is installed and fixed inside the roadway through the fixed base 3, and the top of the mine pit is supported by the cooperation of multiple support devices.

[0036] The working principle and usage process of the present utility model are as follows: First, insert the main support frame 1 into the telescopic adjustment hole 2 at the top of the fixed base 3, and the main support frame 1 slides to the bottommost end inside the fixed base 3 to reduce the overall height of the equipment. Subsequently, fix the fixed base 3 to the fixed base on the ground; adjust the overall height of the equipment to an appropriate height by stretching the main support frame 1, and then insert the rotating fixing member 4 into the side wall of the fixed base 3 to fix the height. By controlling the operation and extension of the multiple hydraulic rods 7 inside the top base 6, the connecting rod 13 installed at the top of the hydraulic rod 7 through the splicing of the through plug-in 11 and the installation slot 12 is extended, and the height of the support plate 9 is lifted until the buffer cushion layer 10 abuts against the roadway top to complete the extension. The buffer cushion layer 10 is used to avoid the wear generated when the roadway top contacts the support plate 9 and plays a certain buffering role. The stable auxiliary frame 5 is used to cooperate with the main support frame 1 and the top base 6 to form a stable structure, thereby reducing the loss during the use of the equipment and improving the service life of the equipment.

[0037] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of protection required by the present utility model. The scope of protection required by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A coal mine tunnel support device, characterized in that: It comprises a main support frame (1), the bottom end of the main support frame (1) is inserted into the inside of a telescopic adjustment hole (2), the telescopic adjustment hole (2) is arranged at the center of the top end of a fixed base (3), there are two main support frames (1), and the top ends of the two main support frames (1) are fixedly connected to the bottom ends of both sides of a top base (6), and the top side wall of the main support frame (1) forms a stable structure with the bottom end of the top base (6) through a stabilizing auxiliary frame (5); A hydraulic rod (7) is fixedly installed inside the top base (6), and a through-plug (11) is fixedly connected to the top end of the hydraulic rod (7). The top end of the through-plug (11) is detachably installed inside a mounting slot (12), and the top end of the mounting slot (12) is fixedly connected to the bottom end of a connecting rod (13), and the top end of the connecting rod (13) is fixedly connected to a support plate (9).

2. A coal mine tunnel support device according to claim 1, characterized in that: The support plate (9) slides in a sliding cavity (8) opened at the top end of the top base (6) via a connecting rod (13).

3. A coal mine tunnel support device according to claim 1, characterized in that: A buffer layer (10) for reducing pressure and providing a buffering effect is fixedly connected to the top end of the support plate (9).

4. A coal mine tunnel support device according to claim 1, characterized in that: A rotating fixing member (4) for fixing the position of the main support frame (1) is inserted into the side wall of the fixed base (3).

5. A coal mine tunnel support device according to claim 1, characterized in that: The fixed base (3) is fixed on the ground via the extending support plates at the bottom.

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