CN220059675U

CN220059675U - Coal body stress detection bracket

Info

Publication number: CN220059675U
Application number: CN202321552627.9U
Authority: CN
Inventors: 苗庆泉; 王超; 高旭; 杨伟; 袁吉瑞; 李亮; 朱文峰
Original assignee: Shandong Yanneng Taide Heavy Industry Co ltd
Current assignee: Shandong Yanneng Taide Heavy Industry Co ltd
Priority date: 2023-06-19
Filing date: 2023-06-19
Publication date: 2023-11-21
Anticipated expiration: 2033-06-19

Abstract

The coal body stress detection bracket relates to the technical field of coal mine construction and comprises a coal dust collector, a camera device and a detection device, wherein the coal dust collector is used for collecting coal dust which is spirally carried out by a drill rod in a drilling process, and the bottom of the coal dust collector is connected with a collection bag; the camera device is used for carrying out whole-course video recording on the drilling process; the detection device is used for measuring the ground stress, the reducing tee joint, the wire head, the connecting pipe and the collecting bag are arranged, the drill rod penetrates through the port on the left side of the reducing tee joint during collection and extends out of the other end of the connecting pipe to drill coal and rock mass, coal powder is spirally carried out of the drill rod and enters the collecting bag through the port on the lower end of the reducing tee joint to be uniformly collected, the drill rod is positioned in the connecting pipe during spiral drilling, the influence of coal powder scattering on the working environment is avoided, the down-hole dust pressure is reduced, meanwhile, the collection amount of coal powder can be guaranteed, and the calculation accuracy of drilling cuttings amount cannot be influenced.

Description

Coal body stress detection bracket

Technical Field

The utility model relates to the technical field of coal mine construction, in particular to a coal body stress detection bracket.

Background

Coal is a main energy source in China, the coal industry is an important basic industry for supporting the development of national economy in China, the mine production intensity is increased and the mining depth is increased along with the high-speed development of national economy, so that the potential accident hazard is seriously limited to the safety production of mines and threatens the life and property safety of people. The occurrence state of gas in the coal seam is an important factor affecting production safety in the coal seam, the gas content of the coal seam is gradually increased along with the continuous increase of the mining depth of the coal seam, and meanwhile, due to the influence of the mining of the coal seam, the original local stress and mining stress are concentrated, the gas permeability of the coal seam is rapidly changed, so that the gas is rapidly gushed out, even disasters such as gas outburst occur; practice shows that various abnormal changes of gas parameters are usually precursors of gas disasters, and gas pressure, gas flow and ground stress are important factors for causing the changes of the gas parameters, so that the method has important significance in effectively testing the gas pressure, the gas flow and the ground stress rule of the coal seam under the influence of mining of the coal seam.

In the traditional coal body stress detection system, a coal dust collector for drilling cutting method construction is adopted, a drill rod is required to drill holes on a coal rock body, coal dust is spirally carried out through the drill rod, and in the collection process, the coal dust is easy to scatter to influence the working environment, so that the down-hole dust pressure is increased; meanwhile, coal dust cannot be completely collected, and accuracy of calculation of drilling cuttings is affected.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a coal body stress detection bracket which can solve the problems that coal dust is easy to scatter to influence the working environment and increase the down-hole dust pressure in the collection process of a coal dust collector; meanwhile, coal dust can not be completely collected, and accuracy of calculation of drilling cuttings is affected.

In order to achieve the above object, the present utility model provides the following technical solutions:

the coal body stress detection bracket comprises a coal dust collector, a camera device and a detection device, wherein the coal dust collector is used for collecting coal dust which is spirally carried out by a drill rod in the drilling process, and the bottom of the coal dust collector is connected with a collection bag; the camera device is used for carrying out whole-course video recording on the drilling process; the detection device is used for measuring the ground stress.

Preferably, the pulverized coal collector comprises a reducing tee, an observation window is arranged at the position of an upper end through hole of the reducing tee, a hanging lug is arranged at the outer side of a lower end through hole, a collecting bag is arranged on the hanging lug, a wire head is welded on the reducing tee, the wire head is communicated with the reducing tee and is concentrically arranged with a left through hole, a connecting pipe is connected with one side of the wire head, far away from the reducing tee, in a threaded manner, and a D-shaped ring is further arranged on the reducing tee.

Preferably, the observation window adopts an acrylic plate, the acrylic plate is fixedly connected to the upper end port of the reducing tee through screws, a folding handle is further arranged above the acrylic plate, and the folding handle is fixedly connected to the reducing tee.

Preferably, the camera device comprises a telescopic rod, one end of the telescopic rod is provided with a hook, the other end of the telescopic rod is provided with an explosion-proof hand lamp and an explosion-proof camera, the explosion-proof camera is fixedly arranged in a fixed box, the fixed box is connected with the telescopic rod through a universal ball head support, and the explosion-proof hand lamp is connected with the telescopic rod through a hand lamp support.

Preferably, the detection device comprises a front section end, a middle section end and a measuring handle, wherein a stress meter is arranged at one end of the front section end, the other end of the front section end is detachably connected with the middle section end, and one end, far away from the front section end, of the middle section end is detachably connected with the measuring handle.

Preferably, the one end that the stress meter was kept away from to the front end is equipped with first connecting block, first inside the first inside groove of having seted up of first connecting block, be equipped with first spring and first fixture block in the first inside groove, first spring one end and first fixture block bottom fixed connection in the first inside groove, the other end and first fixture block bottom fixed connection, first fixture block swing joint is in first inside groove, well festival end one end be equipped with first fixture block matched with first draw-in groove, the other end of well festival end is equipped with the second connecting block, the second inside groove has been seted up to the inside second connecting block, be equipped with second spring and second fixture block in the second inside groove, second spring one end and second inside groove bottom fixed connection, the other end and second fixture block bottom fixed connection, second fixture block swing joint is in the second inside groove, be connected with the third connecting block on the measurement handle, set up on the third connecting block with second fixture block matched with second draw-in groove.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the reducing tee joint, the wire head, the connecting pipe and the collecting bag are arranged, the drill rod penetrates through the through hole on the left side of the reducing tee joint and extends out of the other end of the connecting pipe to drill coal and rock mass during collection, coal dust is spirally carried out by the drill rod and enters the collecting bag through the through hole on the lower end of the reducing tee joint to be uniformly collected, and in the spiral drilling process, the drill rod is positioned in the connecting pipe, so that the coal dust scattering is avoided, the working environment is influenced, the down-hole dust pressure is reduced, the collection amount of the coal dust is ensured, and the calculation accuracy of the drilling cuttings amount is not influenced.

2. According to the utility model, the connecting pipe is in threaded connection with the wire head, so that on one hand, the connecting pipes with different lengths can be conveniently customized according to the requirements of customers, and the connecting pipe is suitable for use in various hole depths; on the other hand, the connecting pipe is easy to damage, so that the replacement is convenient.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic view of a pulverized coal collector according to the present utility model;

FIG. 2 is a schematic view of an image capturing apparatus according to the present utility model;

FIG. 3 is a schematic diagram of a detecting device according to the present utility model;

FIG. 4 is a schematic view of a cross-sectional structure of a front-end and a middle-end connection in the present utility model;

fig. 5 is a schematic cross-sectional view illustrating the connection between the third connecting block and the middle joint end in the present utility model.

Reference numerals illustrate:

1-reducing tee joint, 2-observation window, 3-hanging lug, 4-collecting bag, 5-wire head, 6-connecting pipe, 7-D ring, 8-screw, 9-folding handle, 10-telescopic rod, 11-hook, 12-explosion-proof hand lamp, 13-explosion-proof camera, 14-fixed box, 15-universal ball head support, 16-hand lamp support, 17-front section end, 18-middle section end, 19-measuring handle, 20-stress meter, 21-first connecting block, 22-first inner groove, 23-first spring, 24-first clamping block, 25-first clamping groove, 26-second connecting block, 27-second inner groove, 28-second spring, 29-second clamping block, 30-third connecting block and 31-second clamping groove.

Detailed Description

The utility model will now be described in detail, by way of example, with reference to the accompanying drawings, wherein it is evident that the embodiments described are only some, but not all, of the embodiments of the utility model.

As shown in fig. 1, 2, 3, 4 and 5, the utility model provides a coal body stress detection bracket, which comprises a coal dust collector, a camera device and a detection device, wherein the coal dust collector is used for collecting coal dust which is spirally carried out by a drill rod in a drilling process, and the bottom of the coal dust collector is connected with a collection bag 4; the camera device is used for carrying out whole-course video recording on the drilling process; the detection device is used for measuring the ground stress.

Further, in this embodiment, the pulverized coal collector includes the reducing tee 1, the upper end opening department of reducing tee 1 is equipped with observation window 2, and the lower extreme opening outside is equipped with hangers 3, be equipped with on the hangers 3 and collect bag 4, the welding has the wire head 5 on the reducing tee 1, wire head 5 and reducing tee 1 intercommunication and with the concentric setting of left opening, one side threaded connection that the reducing tee 1 was kept away from to wire head 5 has takeover 6, still be equipped with D ring 7 on the reducing tee 1. The observation window 2 is arranged to facilitate observing the coal dust extraction condition at any time, the connecting pipe 6 is in threaded connection with the wire head 5, and the damaged connecting pipe 6 is convenient to replace or the connecting pipe 6 with different lengths is convenient to replace, so that the device is suitable for use with different hole depths.

Further, in this embodiment, the observation window 2 adopts the acrylic board, acrylic board passes through screw 8 fixed connection on the upper end opening of reducing tee 1, the top of acrylic board still is equipped with folding handle 9, folding handle 9 fixed connection is on reducing tee 1, is favorable to conveniently taking this collector through setting up folding handle 9.

Further, in this embodiment, the image capturing device includes a telescopic rod 10, one end of the telescopic rod 10 is provided with a hook 11, the other end is provided with an explosion-proof hand lamp 12 and an explosion-proof camera 13, the explosion-proof camera 13 is fixedly arranged in a fixed box 14, the fixed box 14 is connected with the telescopic rod 10 through a universal ball bracket 15, and the explosion-proof hand lamp 12 is connected with the telescopic rod 10 through a hand lamp bracket 16. The hook 11 is hung on a coal roadway anchor net and is used for fixing a camera device; the explosion-proof hand lamp 12 is arranged to facilitate lighting inside a drill hole, so that the explosion-proof camera 13 is convenient to shoot, and the explosion-proof camera 13 is connected with the telescopic rod 10 through the universal ball head bracket 15, so that the shooting angle is convenient to adjust.

Further, in this embodiment, the detecting device includes a front section end 17, a middle section end 18, and a measuring handle 19, where a stress meter 20 is installed at one end of the front section end 17, the other end is detachably connected to the middle section end 18, and the measuring handle 19 is detachably connected to the end of the middle section end 18 away from the front section end 17. The front joint end 17 is detachably connected with the middle joint end 18, the middle joint end 18 is detachably connected with the measuring handle 19, so that the multi-joint middle joint end 18 can be conveniently connected according to the hole depth, and the stress meter 20 is beneficial to measuring the subsequent ground stress.

Further, in this embodiment, the front end 17 is provided with a first connecting block 21 at one end far away from the stress meter 20, a first inner groove 22 is provided inside the first connecting block 21, a first spring 23 and a first clamping block 24 are provided inside the first inner groove 22, one end of the first spring 23 is fixedly connected with the bottom inside the first inner groove 22, the other end of the first spring is fixedly connected with the bottom of the first clamping block 24, the first clamping block 24 is movably connected in the first inner groove 22, one end of the middle end 18 is provided with a first clamping groove 25 matched with the first clamping block 24, the other end of the middle end 18 is provided with a second connecting block 26, a second inner groove 27 is provided inside the second connecting block 26, a second spring 28 and a second clamping block 29 are provided inside the second inner groove 27, one end of the second spring 28 is fixedly connected with the bottom inside the second inner groove 27, the other end of the second spring is fixedly connected with the bottom of the second inner groove 29, the second clamping block 29 is movably connected in the second inner groove 27, a third clamping block 30 is connected with the measuring handle 19, and the third connecting block 30 is provided with a second connecting block 31 matched with the second connecting block 29.

When the front joint end 17 is installed, the first connecting block 21 is firstly installed at one end of the middle joint end 18, the front joint end 17 is pushed towards the inside of the middle joint end 18, the first clamping block 24 on the first connecting block 21 is contracted into the first inner groove 22 through the first spring 23, when the first clamping block 24 moves to the position of the first clamping groove 25 on the middle joint end 18, the first spring 23 resets, and the first clamping block 24 enters the first clamping groove 25, so that connection between the front joint end 17 and the middle joint end 18 is realized. The connection between the plurality of middle node ends 18 may be accomplished in the same manner so as to be suitable for stress detection at various hole depths. After the middle joint end 18 is connected, a second clamping block 29 on the last middle joint end 18 is connected into a second clamping groove 31 on a third connecting block 30 on the measuring handle 19. The assembly of the front section end 17, the middle section end 18 and the measuring handle 19 is completed.

When the coal dust collector is used, a hole suitable for the insertion of the front end of the connecting pipe of the coal dust collector is drilled by the special drill bit for resisting rock, the coal dust collector is installed, the D-shaped ring 7 is fixed with the anchor net of the coal roadway, the drill bit and the drill rod penetrate through the left through hole to the right side connecting pipe 6 for drilling operation, coal dust is spirally taken out along the drill rod, and uniformly enters the collecting bag 4 through the through hole at the lower end of the reducing tee 1 for collecting, so that the accuracy of the coal dust collecting amount is ensured. The whole-course video recording is carried out on the drilling process through the explosion-proof camera 13 in the drilling process; after the pulverized coal is collected, the pulverized coal collector and the camera device are disassembled, the detection device is installed, and the stress meter is used for measuring the follow-up ground stress.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, shall cover the scope of the present utility model by equivalent substitution or modification according to the technical scheme of the present utility model and the application concept thereof.

Claims

1. The utility model provides a coal body stress detects support, includes coal dust collector, camera device and detection device, its characterized in that: the coal dust collector is used for collecting coal dust which is spirally carried out by the drill rod in the drilling process, and the bottom of the coal dust collector is connected with a collecting bag (4); the camera device is used for carrying out whole-course video recording on the drilling process; the detection device is used for measuring the ground stress;

the pulverized coal collector comprises a reducing tee (1), an observation window (2) is arranged at the upper end opening of the reducing tee (1), a hanging lug (3) is arranged at the outer side of the lower end opening, a collecting bag (4) is arranged on the hanging lug (3), a wire head (5) is welded on the reducing tee (1), the wire head (5) is communicated with the reducing tee (1) and is concentrically arranged with the left opening, one side of the wire head (5) far away from the reducing tee (1) is connected with a connecting pipe (6) through threads, and a D-shaped ring (7) is further arranged on the reducing tee (1).

2. The coal body stress detection bracket as claimed in claim 1, wherein: the observation window (2) adopts an acrylic plate, the acrylic plate is fixedly connected to an upper end through hole of the reducing tee (1) through a screw (8), a folding handle (9) is further arranged above the acrylic plate, and the folding handle (9) is fixedly connected to the reducing tee (1).

3. The coal body stress detection bracket as claimed in claim 1, wherein: the camera device comprises a telescopic rod (10), a hook (11) is arranged at one end of the telescopic rod (10), an explosion-proof hand lamp (12) and an explosion-proof camera (13) are arranged at the other end of the telescopic rod, the explosion-proof camera (13) is fixedly arranged in a fixed box (14), the fixed box (14) is connected with the telescopic rod (10) through a universal ball head support (15), and the explosion-proof hand lamp (12) is connected with the telescopic rod (10) through a hand lamp support (16).

4. The coal body stress detection bracket as claimed in claim 1, wherein: the detection device comprises a front section end (17), a middle section end (18) and a measuring handle (19), wherein a stress meter (20) is arranged at one end of the front section end (17), the other end of the front section end is detachably connected with the middle section end (18), and one end, far away from the front section end (17), of the middle section end (18) is detachably connected with the measuring handle (19).

5. The coal body stress detection bracket as recited in claim 4, wherein: the front joint end (17) is far away from one end of the stress meter (20) and is provided with a first connecting block (21), a first inner groove (22) is formed in the first connecting block (21), a first spring (23) and a first clamping block (24) are arranged in the first inner groove (22), one end of the first spring (23) is fixedly connected with the inner bottom of the first inner groove (22), the other end of the first spring (23) is fixedly connected with the bottom of the first clamping block (24), the first clamping block (24) is movably connected in the first inner groove (22), one end of the middle joint end (18) is provided with a first clamping groove (25) matched with the first clamping block (24), the other end of the middle joint end (18) is provided with a second connecting block (26), a second inner groove (27) is formed in the second connecting block (26), one end of the second spring (28) is fixedly connected with the bottom of the second inner groove (27), the other end of the second spring (28) is fixedly connected with the bottom of the second inner groove (29), the second inner groove (29) is fixedly connected with a handle (19) in a measuring mode, and a second clamping groove (31) matched with the second clamping block (29) is formed in the third connecting block (30).