Advanced detection device and monitoring system for coal face tunneling

Abstract

The utility model relates to the field of underground work, in particular to a coal face tunneling advanced detection device and monitoring system which comprises a drilling motor, a sleeving rod fixedly connected to the lower end of the drilling motor, a hydraulic motor fixedly connected to the inner end of the sleeving rod in a sleeving mode, a hydraulic rod fixedly connected to the output end of the hydraulic motor, and a drill bit rod fixedly connected to the tail end of the hydraulic rod. A guide frame is fixedly connected to the outer side of the rear end of the drill bit; the lower end of the sleeving rod is fixedly connected with a drilling rod, the lower end of the drilling rod is provided with a corrugated pipe containing groove, the inner end of the corrugated pipe containing groove is fixedly connected with a dust-blocking breathable corrugated pipe, and the lower end of the dust-blocking breathable corrugated pipe is fixedly connected to the upper end face of the drill bit. The gas advanced detection device has the beneficial effects that the gas advanced detection device is provided with the mining-following collection device, so that a drill bit can be kept in a hole during drilling, gas is prevented from overflowing, then the mining-following collection device is used for directly collecting gas in the hole, and the gas is hermetically conveyed to the detection device in the whole process, so that the safety during gas advanced detection is improved.

Description

Technical Field

[0001] The utility model relates to the field of underground work, in particular to a coal mining face excavation advance detection device and a monitoring system. Background Art

[0002] The coal mining face refers to the first production site of coal, which is characterized by a small working space, many mechanical equipment, poor visual environment and high temperature. Frequent safety accidents have seriously affected the safety management of the entire coal mine. It is a key area in the safety management of coal mines. When excavating in the coal mining face, it is necessary to conduct advanced detection of different underground gas environments.

[0003] The traditional detection method usually involves drilling ahead first, then removing the drill bit and collecting and detecting the gas escaping from the hole. However, during the operation, a portion of the gas will still diffuse into the coal mining face. If harmful gas appears, it may cause certain accidents. Therefore, the present invention proposes a coal mining face advance detection device and monitoring system for solving the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a coal mining face advance detection device and monitoring system to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coal mining working face advance detection device and monitoring system, including a drilling motor, the lower end of the drilling motor is fixedly connected to a sleeve rod, the inner end of the sleeve rod is fixedly sleeved with a hydraulic motor, the output end of the hydraulic motor is fixedly connected to a hydraulic rod, the end of the hydraulic rod is fixedly connected to a drill rod, the end of the drill rod is fixedly connected to a drill bit, and the outer side of the rear end of the drill bit is fixedly connected to a guide frame; the lower end of the sleeve rod is fixedly connected to the drilling rod, the lower end of the drilling rod is provided with a bellows receiving groove, the inner end of the bellows receiving groove is fixedly connected to a dust-blocking and breathable bellows, and the lower end of the dust-blocking and breathable bellows is fixedly connected to the upper end face of the drill bit.

[0006] Preferably, a guide groove is provided on the inner side of the bellows receiving groove, and a guide frame is provided in the guide groove.

[0007] Preferably, a plurality of air guide grooves are opened on the inner side of the drilling rod, the upper end of the air guide groove is connected to an air guide pipe, the upper end of the air guide pipe is connected to an air collecting cavity, the outside of the air collecting cavity is fixedly connected to an air extraction pipe, and the outside of the air extraction pipe is fixedly connected to an air extraction pump.

[0008] Preferably, an air collecting sleeve is sleeved on the outer side of the sleeve rod, and an air collecting cavity is opened in the air collecting sleeve.

[0009] Preferably, a sealing gasket is provided on the rotating sleeve at the lower end of the gas collecting sleeve, and the sealing gasket is fixedly connected to the upper end surface of the drilling rod.

[0010] A coal mining face monitoring system uses the above-mentioned coal mining face advance detection device.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model provides a collection device during drilling, so that the drill bit can be kept in the hole to prevent gas overflow. The collection device can then be used to collect gas directly in the hole and transmit it to the detection device in a sealed manner throughout the process, thereby improving the safety of gas advance detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal section of the utility model;

[0015] Figure 3 for Figure 2 A in the middle is an enlarged schematic diagram;

[0016] Figure 4 for Figure 2 The enlarged schematic diagram of point B in the middle;

[0017] Figure 5 for Figure 2 Enlarged schematic diagram at point C in the middle;

[0018] Figure 6 It is a partial structural diagram of the utility model;

[0019] Figure 7 It is a schematic diagram of the internal structure of part of the utility model.

[0020] In the figure: 1 drilling motor, 2 setting rod, 3 drill bit, 4 exhaust pipe, 5 exhaust pump, 6 air collecting sleeve, 7 drilling rod, 8 air collecting chamber, 9 air guide channel, 10 sealing gasket, 11 air guide pipe, 12 drill bit rod, 13 guide frame, 14 guide groove, 15 dust-blocking and breathable bellows, 16 bellows storage groove, 17 hydraulic motor, 18 hydraulic rod. DETAILED DESCRIPTION

[0021] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "one," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0024] For the purpose of simplicity and illustration, the principles of the embodiments are described primarily with reference to examples. In the following description, many specific details are provided to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures are not described in detail to avoid unnecessarily obscuring the understanding of these embodiments. In addition, all embodiments may be used in combination with each other.

[0025] See also Figures 1 to 7The utility model provides a technical solution: a coal mining face advance detection device and monitoring system, including a drilling motor 1, the lower end of the drilling motor 1 is fixedly connected to a sleeve rod 2, the inner end of the sleeve rod 2 is fixedly sleeved with a hydraulic motor 17, the output end of the hydraulic motor 17 is fixedly connected to a hydraulic rod 18, the end of the hydraulic rod 18 is fixedly connected to a drill rod 12, the end of the drill rod 12 is fixedly connected to a drill bit 3, and the outer side of the rear end of the drill bit 3 is fixedly connected to a guide frame 13; the lower end of the sleeve rod 2 is fixedly connected to a drilling rod 7, and the lower end of the drilling rod 7 is provided with a bellows receiving groove 16, the bellows The inner end of the tube receiving groove 16 is fixedly connected with a dust-blocking and breathable bellows 15, and the lower end of the dust-blocking and breathable bellows 15 is fixedly connected to the upper end surface of the drill bit 3. The drilling motor 1 drives the sleeve rod 2 and the drilling rod 7 to rotate, so that the drill bit 3 rotates to achieve drilling. When the hole is drilled to a certain depth, the hydraulic motor 17 drives the hydraulic rod 18 to push the drill rod 12 to extend and retract. At the drill bit 3, since the drill bit 3 is blocked by the hole, the drilling rod 7 is pushed open, so that the dust-blocking and breathable bellows 15 is expanded, and the air in the hole can be absorbed by the dust-blocking and breathable bellows 15, while blocking the entry of debris and dust in the hole.

[0026] A guide groove 14 is provided on the inner side of the bellows receiving groove 16, and a guide frame 13 is provided in the guide groove 14. A number of air guide grooves 9 are provided on the inner side of the drilling rod 7. The upper end of the air guide groove 9 is connected to an air guide pipe 11, and the upper end of the air guide pipe 11 is connected to an air collecting chamber 8. The outside of the air collecting chamber 8 is fixedly connected to an exhaust pipe 4, and the outside of the exhaust pipe 4 is fixedly connected to an exhaust pump 5. The guide groove 14 can make the drilling rod 7 retreat stably when it is pushed open, ensuring that the dust-blocking and breathable bellows 15 can be stably expanded and breathable. The exhaust pump 5 is used to exhaust air, so that the gas in the hole is absorbed through the air guide groove 9 and passes through the air guide pipe 11 in turn. The air collecting chamber 8 is finally collected and detected by the exhaust pipe 4.

[0027] An air collecting sleeve 6 is sleeved on the outer side of the sleeve rod 2, and an air collecting cavity 8 is opened in the air collecting sleeve 6. A sealing gasket 10 is provided on the rotating sleeve of the lower end of the air collecting sleeve 6. The sealing gasket 10 is fixedly connected to the upper end surface of the drilling rod 7. The sealing gasket 10 enables the air guide tube 11 and the air collecting cavity 8 to be sealed, so that when the drilling rod 7 rotates, it will not affect the fixation of the air collecting sleeve 6 and the air pump 6.

[0028] A coal mining face monitoring system uses the above-mentioned coal mining face advance detection device.

[0029] During actual use, the drilling motor 1 drives the rotation of the sleeve rod 2 and the drilling rod 7 to rotate the drill bit 3 to achieve drilling. When the hole is drilled to a certain depth, the hydraulic motor 17 drives the hydraulic rod 18 to push the drill rod 12 to extend and retract. At the drill bit 3, since the drill bit 3 is blocked by the hole, the drilling rod 7 is pushed open, so that the dust-blocking and breathable bellows 15 are unfolded. The dust-blocking and breathable bellows 15 can absorb the air in the hole and prevent the entry of debris and dust in the hole. The guide groove 14 can achieve stable retreat when the drilling rod 7 is pushed open, ensuring that the dust-blocking and breathable bellows 15 can be stably unfolded for ventilation. The vacuum pump 5 is used to pump air, so that the gas in the hole is absorbed through the air guide channel 9 and passes through the air guide pipe 11 in turn. The gas collecting chamber 8 is finally collected and detected by the exhaust pipe 4.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal mining face advance detection device, characterized by: include A drilling motor (1), wherein the lower end of the drilling motor (1) is fixedly connected to a sleeve rod (2), the inner end of the sleeve rod (2) is fixedly sleeved with a hydraulic motor (17), the output end of the hydraulic motor (17) is fixedly connected to a hydraulic rod (18), the end of the hydraulic rod (18) is fixedly connected to a drill rod (12), the end of the drill rod (12) is fixedly connected to a drill bit (3), and the outer rear end of the drill bit (3) is fixedly connected to a guide frame (13); The lower end of the sleeve rod (2) is fixedly connected to a drilling rod (7), the lower end of the drilling rod (7) is provided with a bellows receiving groove (16), the inner end of the bellows receiving groove (16) is fixedly connected to a dust-blocking and breathable bellows (15), and the lower end of the dust-blocking and breathable bellows (15) is fixedly connected to the upper end surface of the drill bit (3).

2. The coal mining face advance detection device according to claim 1, characterized in that: A guide groove (14) is provided inside the bellows receiving groove (16), and a guide frame (13) is inserted into the guide groove (14).

3. The coal mining face advance detection device according to claim 1, characterized in that: A plurality of air guide grooves (9) are provided on the inner side of the drilling rod (7); the upper ends of the air guide grooves (9) are connected to air guide pipes (11); the upper ends of the air guide pipes (11) are connected to an air collecting chamber (8); the outer side of the air collecting chamber (8) is fixedly connected to an air extraction pipe (4); the outer side of the air extraction pipe (4) is fixedly connected to an air extraction pump (5).

4. The coal mining face advance detection device according to claim 1, characterized in that: An air collecting sleeve (6) is sleeved on the outer side of the sleeve rod (2), and an air collecting cavity (8) is provided in the air collecting sleeve (6).

5. The coal mining face advance detection device according to claim 4, characterized in that: A sealing gasket (10) is provided on the rotating sleeve at the lower end of the gas collecting sleeve (6), and the sealing gasket (10) is fixedly connected to the upper end surface of the drilling rod (7).

6. A coal mining face monitoring system, characterized by: The coal mining face advance detection device described in any one of claims 1 to 5 is used.

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