Coal mine drilling negative pressure monitoring device

Abstract

The utility model relates to the technical field of coal mine monitoring, in particular to a coal mine drilling negative pressure monitoring device which comprises a base, a fixing sleeve arranged on the top of the base, a plurality of filtering assemblies arranged on the periphery of the fixing sleeve, a partition plate arranged in the fixing sleeve, a motor arranged on the partition plate, and an output shaft of the motor penetrating through the fixing sleeve through a bearing and provided with a sleeve pipe. One end of the sleeve pipe is arranged on the fixing sleeve in a sleeving manner, the sleeve pipe is in contact with the outer sides of the filtering assemblies in the moving process, and a plurality of through grooves are formed in the sleeve pipe. According to the device, the monitoring instrument is protected through the fixing sleeve and the base, dust and the like in the coal mine drilling process cannot reach the position of the monitoring instrument, and therefore the service life of the monitoring instrument is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mine monitoring technical field especially relates to a coal mine drilling negative pressure monitoring device. BACKGROUND

[0002] In recent years, with the mine mining gradually extending to the deep part, gas pressure and content gradually increase, and the gas control difficulty increases. In the drilling construction process, the risk of early warning, overrun and other gas accidents caused by the negative pressure of the extraction system also shows ladder type growth. The prevention and control of the extraction negative pressure and the early warning are as important as the prevention and control of the gas.

[0003] However, the existing equipment only monitors the negative pressure of the mine extraction system, and the negative pressure of the drilling construction point, such as the dust blockage of the negative pressure monitoring equipment at the drilling construction site, will cause the blowout extraction negative pressure to decrease or even no negative pressure state to appear, and the probability of gas accidents will greatly increase. UTILITY MODEL CONTENT

[0004] The utility model discloses a coal mine drilling negative pressure monitoring device to solve the problem of dust blockage of the negative pressure monitoring equipment at the drilling construction site, which will cause the blowout extraction negative pressure to decrease or even no negative pressure state to appear, and the probability of gas accidents will greatly increase.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A coal mine drilling negative pressure monitoring device is designed, which comprises a base, a fixing sleeve is arranged at the top of the base, a plurality of filter assemblies are arranged around the fixing sleeve, a partition plate is arranged in the fixing sleeve, a motor is arranged on the partition plate, the output shaft of the motor penetrates the fixing sleeve through a bearing and is provided with a sleeve pipe, the sleeve pipe is sleeved on the fixing sleeve at one end, the sleeve pipe is in contact with the outer side of the plurality of filter assemblies during movement, and a plurality of through grooves are formed in the sleeve pipe.

[0007] Preferably, the plurality of filter assemblies are symmetrically arranged around the fixing sleeve.

[0008] Preferably, a connecting frame is arranged on one side of the base, a cleaning rod assembly is placed on one side of the connecting frame, an elastic element is arranged on one side of the cleaning rod assembly, one end of the plurality of elastic elements is connected to the connecting frame, and one of the working states is that one side of the cleaning rod assembly is pressed on the sleeve pipe.

[0009] Preferably, a limiting frame is connected to the top of the connecting frame, a rotating shaft is installed on one end of the limiting frame through a bearing, one end of the rotating shaft is connected to one end of the sleeve pipe, and the axis of the rotating shaft is coaxially arranged with the axis of the sleeve pipe.

[0010] Preferably, the plurality of elastic members are each provided as a cylindrical spring.

[0011] The coal mine drilling negative pressure monitoring device has the advantages that the monitoring instrument is protected by the fixing sleeve and the base, dust and the like in the coal mine drilling process cannot reach the position of the monitoring instrument, and the service life of the monitoring instrument is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 The coal mine drilling negative pressure monitoring device has the advantages that the monitoring instrument is protected by the fixing sleeve and the base, dust and the like in the coal mine drilling process cannot reach the position of the monitoring instrument, and the service life of the monitoring instrument is prolonged.

[0013] Figure 2 For Figure 1 The local enlarged view at A.

[0014] Figure 3 The coal mine drilling negative pressure monitoring device has the advantages that the monitoring instrument is protected by the fixing sleeve and the base, dust and the like in the coal mine drilling process cannot reach the position of the monitoring instrument, and the service life of the monitoring instrument is prolonged.

[0015] Figure 4 The coal mine drilling negative pressure monitoring device has the advantages that the monitoring instrument is protected by the fixing sleeve and the base, dust and the like in the coal mine drilling process cannot reach the position of the monitoring instrument, and the service life of the monitoring instrument is prolonged.

[0016] In the drawing: 1, base; 2, fixing sleeve; 3, filter assembly; 4, partition; 5, motor; 6, sleeve pipe; 7, through groove; 8, connecting frame; 9, cleaning rod assembly; 10, elastic member; 11, limiting frame; 12, rotating shaft. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application.

[0018] Embodiment 1: with reference to Figures 1-4 A coal mine drilling negative pressure monitoring device, comprising a base 1, the top of the base 1 is provided with a fixing sleeve 2, a plurality of filter assemblies 3 are arranged around the fixing sleeve 2, a partition 4 is arranged in the fixing sleeve 2, a motor 5 is arranged on the partition 4, the output shaft of the motor 5 penetrates the fixing sleeve 2 through a bearing and is provided with a sleeve pipe 6, one end of the sleeve pipe 6 is sleeved on the fixing sleeve 2, the sleeve pipe 6 is in contact with the outer sides of the plurality of filter assemblies 3 during movement, a plurality of through grooves 7 are formed in the sleeve pipe 6, and the plurality of filter assemblies 3 are symmetrically arranged around the fixing sleeve 2.

[0019] Since the device is monitoring the gas near the coal, the sleeve pipe 6 is made of non-metallic material, so that the sleeve pipe 6 will not produce sparks and the like during the cleaning process of the outer side of the plurality of filter assemblies 3, thereby improving the safety of the device, combined with the Figures 1-4 It can be seen that the edges of the plurality of through grooves 7 are arranged in a circular arc shape, so that the sleeve pipe 6 at the plurality of through grooves 7 is cleaned relative to the plurality of filter assemblies 3 during the cleaning process of the outer side of the plurality of filter assemblies 3, thereby improving the cleaning effect of the sleeve pipe 6 on the plurality of filter assemblies 3.

[0020] After installing the monitoring device inside the base 1, fix the fixing sleeve 2 on the base 1, and then fix the base 1 after the monitoring device is located inside the fixing sleeve 2. The motor 5 is connected to the monitoring device and the motor 5 through the base 1, and the output shaft of the motor 5 rotates the sleeve pipe 6 outside the fixing sleeve 2 during operation, so that the plurality of filter assemblies 3 outside the fixing sleeve 2 are not prone to dust accumulation, ensuring gas exchange inside and outside the fixing sleeve 2, thereby making the monitoring device less likely to be contaminated with dust and the like, thereby prolonging the service life of the monitoring instrument.

[0021] Example 2: The edges of the through grooves 7 of the sleeve pipe 6 are also prone to dust and the like in Example 1, and are optimized based on Example 1, referring to Figures 1-4 The side of the base 1 is provided with a connecting frame 8, and the connecting frame 8 is provided with a cleaning rod assembly 9 on one side. The cleaning rod assembly 9 is provided with a plurality of elastic members 10 on one side, and one end of each of the plurality of elastic members 10 is connected to the connecting frame 8. In one working state, the cleaning rod assembly 9 is pressed on the sleeve pipe 6 on one side.

[0022] By providing the connecting frame 8, the cleaning rod assembly 9 and the elastic member 10, the side of the cleaning assembly 9 will pass through the edges of the plurality of through grooves 7 in turn during the rotation of the sleeve pipe 6, so that the cleaning assembly 9 will clean the edges of the plurality of through grooves 7, thereby improving the cleaning effect of the plurality of through grooves 7 on the plurality of filter assemblies 3 in Example 1.

[0023] Example 3: In Example 2, the connecting frame 8 has no support point at the top, so that the part of the connecting frame 8 in contact with the base is prone to bending, and is optimized based on Examples 1-2, referring to Figures 1-4 The connecting frame 8 is connected to a limiting frame 11 at the top, and the limiting frame 11 is connected to a rotating shaft 12 at one end through a bearing. One end of the rotating shaft 12 is connected to one end of the sleeve pipe 6, and the axis of the rotating shaft 12 coincides with the axis of the sleeve pipe 6. The plurality of elastic members 10 are arranged as cylindrical springs.

[0024] The limiting frame 11 is arranged on the top of the connecting frame 8 and combined with the rotating shaft 12, so that the top of the connecting frame 8 has an additional supporting point, the stress on both ends of the connecting frame 8 is more uniform, the possibility of bending of the connecting frame 8 is reduced, the axis of the rotating shaft 12 coincides with the axis of the sleeve pipe 6, the sleeve pipe 6 rotates with the rotating shaft 12 during rotation, the rotation of the rotating shaft 12 does not affect the limiting frame 11, and the device is more stable.

[0025] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A coal mine drilling negative pressure monitoring device, comprising a base (1), characterized in that, The base (1) top is provided with fixed sleeve (2), the fixed sleeve (2) is provided with several filter components (3) around, the fixed sleeve (2) is provided with the baffle (4) in, the baffle (4) is provided with motor (5), the output shaft of motor (5) passes through bearing and is installed with sleeve tube (6) and is penetrated fixed sleeve (2), the sleeve tube (6) one end is sleeved in fixed sleeve (2), the sleeve tube (6) is contacted with several filter components (3) outside in the movement process, the sleeve tube (6) is opened with several through slots (7).

2. The coal mine drilling negative pressure monitoring device according to claim 1, characterized in that, Several filter components (3) are symmetrically arranged around the fixed sleeve (2).

3. The coal mine drilling negative pressure monitoring device according to claim 1, characterized in that, The base (1) is provided with a connecting frame (8) on one side, the connecting frame (8) is placed with a cleaning rod assembly (9) on one side, the cleaning rod assembly (9) is provided with an elastic element (10) on one side, the elastic element (10) is connected to the connecting frame (8) on one end, and one of the working states is that the cleaning rod assembly (9) is pressed on the sleeve tube (6) on one side.

4. The coal mine drilling negative pressure monitoring device according to claim 3, characterized in that, The connecting frame (8) is connected with a limiting frame (11) on the top, the limiting frame (11) is installed with a rotating shaft (12) on one end through a bearing, the rotating shaft (12) is connected to one end of the sleeve tube (6) on one end, and the axis of the rotating shaft (12) coincides with the axis of the sleeve tube (6).

5. The coal mine drilling negative pressure monitoring device according to claim 3, characterized in that, Several elastic elements (10) are all provided as cylindrical springs.

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