CN219061553U

CN219061553U - Drilling tool for coal mine underground straight drilling

Info

Publication number: CN219061553U
Application number: CN202222563660.3U
Authority: CN
Inventors: 马广兴; 王勇; 陈旭; 汪启友; 陶柱; 武沛武; 刘三钧; 杨振华; 高俊; 王飞; 刘增
Original assignee: Yongcheng Yongan Mine Safety Technology Engineering Co ltd; Henan University of Technology
Current assignee: Yongcheng Yongan Mine Safety Technology Engineering Co ltd; Henan University of Technology
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-05-23
Anticipated expiration: 2032-09-27

Abstract

The utility model relates to the technical field of underground drilling of coal mines, in particular to a drilling tool for underground straight drilling of coal mines. The drilling tool for coal mine underground straight drilling can be used for centering the drilling tool in the coal mine underground with a large width. The utility model provides a colliery is protected straight drilling and is used drilling tool in pit, including rear joint, front joint, first casing, second casing and righting mechanism, the rear joint downside is connected with the front joint, and two parts outer walls all overlap has first casing about the rear joint, and rear joint middle part outer wall cover has the second casing, and first casing all is equipped with righting mechanism with second casing joint on first casing and the second casing. According to the utility model, through the centralizing seat, the direction of drilling holes of the drill bit can be straightened in a coal mine with larger width, and meanwhile, the roller can assist the drilling tool to move downwards, so that the working difficulty of people on the drilling holes of the coal mine can be reduced.

Description

Drilling tool for coal mine underground straight drilling

Technical Field

The utility model relates to the technical field of underground drilling of coal mines, in particular to a drilling tool for underground straight drilling of coal mines.

Background

People need beat the coal mine when mining, people need to bore the coal mine with the help of the drilling tool, if drilling deviation can lead to taking out the appearance of blind area, can bury hidden danger down for the safety in coal mine, current drilling tool is when using, stretch into the coal mine with the drilling tool and bore, the installation piece around the drilling tool can take place adaptive indentation under the coal mine effect simultaneously, the supporting shoe is in shrinkage state in radial and forms frictional force with the pore wall, the dabber passes through thrust bearing and promotes rotatory casing assembly of non-and support assembly slip forward, consequently, the dabber can guarantee to be unanimous with the drilling axis, however, if in the circumstances that the colliery well width is greater than the supporting shoe at the distance of each other, unable accurate direction to drilling tool downwardly moving is just, so current drilling tool can't just the drilling tool in the great colliery of width.

Therefore, a drilling tool for coal mine underground straight drilling, which can be used for centering the drilling tool in the coal mine underground with a large width, is developed.

Disclosure of Invention

In order to overcome the defect that the drilling tool cannot be straightened in a coal mine with a large width. The technical problems to be solved are as follows: the drilling tool for coal mine underground straight drilling can be used for centering the drilling tool in the coal mine underground with a large width.

The technical proposal is as follows: the utility model provides a colliery is protected straight drilling and is used drilling tool in pit, including the back joint, the front joint, first casing, second casing and righting mechanism, the back joint downside is connected with the front joint, two parts outer walls all overlap has first casing about the back joint, back joint middle part outer wall cover has the second casing, first casing all with second casing joint, all be equipped with righting mechanism on first casing and the second casing, fix the drill bit on the front joint, later insert the drill bit in the coal mine, through righting mechanism to the direction of drill bit downshifting in the great coal mine of width.

As a further preferred scheme, righting mechanism is including solid fixed ring, slope type ring, spacing and righting subassembly, and first casing outer wall all slidingtype is connected with solid fixed ring, and the second casing outer wall is also slidingtype and is connected with solid fixed ring, all rotates on the solid fixed ring to be connected with slope type ring, and gu fixed ring outer wall all is connected with three spacing along the circumferencial direction, and every group has two spacing, is equipped with righting subassembly on the spacing, and righting subassembly is used for the direction of descending to the drill bit to be straightened.

As a further preferred scheme, the righting assembly comprises righting seats, springs and rollers, wherein the righting seats are connected between two limiting frames in each group in a sliding mode, the springs are connected to the two sides of the upper portion and the lower portion of each righting seat, the inner sides of the springs are connected with the limiting frames, the springs are sleeved on the limiting frames, slope rings are located at the inner sides of the righting seats, four rollers are connected to the outer portions of the righting seats in a rotating mode, the slope rings are rotated according to the radius of a coal mine, the righting seats are pushed to move outwards, and then under the cooperation of the rollers, the position of a drill bit is righted in a coal mine with larger width.

As a further preferred embodiment, the ramp ring surface is provided with protrusions.

As a further preferred scheme, the fixing device further comprises an adjusting mechanism for adjusting and positioning the position of the fixing ring, the adjusting mechanism comprises a limiting plate, a fixing plate and a clamping component, wherein the limiting plate is connected to the front side and the rear side of the outer wall of the first shell, the limiting plate is connected to the front side and the rear side of the outer wall of the second shell, the fixing ring is connected with the limiting plate in a sliding mode, the fixing plate is connected to the upper side of the limiting plate in a bolting mode, and the clamping component is arranged on the fixing ring.

As a further preferable scheme, the clamping assembly comprises a fixed seat and a screw rod, wherein the fixed seat is bolted to the upper side and the lower side of the front portion and the rear portion of the fixed ring, screw threads are connected to the fixed seat, the fixed seat is loosened by rotating the screw rod, and then the position of the fixed ring is adjusted.

The utility model has the following advantages: 1. according to the utility model, through the centralizing seat, the direction of drilling holes of the drill bit can be straightened in a coal mine with larger width, and meanwhile, the roller can assist the drilling tool to move downwards, so that the working difficulty of people on the drilling holes of the coal mine can be reduced.

2. According to the utility model, the screw rod is rotated, so that the friction force between the fixed seat and the limiting plate is reduced, and the position of the fixed ring can be adjusted, so that people can conveniently drill coal mine wells with different depths.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a schematic view of a partial perspective structure of the present utility model.

Fig. 3 is a schematic view of a first perspective of the righting mechanism of the present utility model.

Fig. 4 is a schematic view of a second perspective of the righting mechanism of the present utility model.

Fig. 5 is a schematic perspective view of an adjusting mechanism according to the present utility model.

Fig. 6 is an enlarged perspective view of the portion a of the present utility model.

Wherein: the device comprises a rear connector 1, a front connector 2, a first shell 3, a second shell 4, a 5-centralizing mechanism 51-fixing rings 52-slope-type rings 53-limiting frames 54-centralizing seats 55-springs 56-rollers 6-adjusting mechanisms 61-limiting plates 62-fixing plates 63-fixing seats 64-screw rods.

Detailed Description

The utility model will be further illustrated by the following description of specific examples, which are given by the terms such as: setting, mounting, connecting are to be construed broadly, and may be, for example, fixed, removable, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1

The utility model provides a colliery is protected straight drilling and is used drilling tool in pit, as shown in fig. 1 and fig. 2, including back joint 1, front joint 2, first casing 3, second casing 4 and righting mechanism 5, back joint 1 downside fixedly connected with front joint 2, front joint 2 can be used for connecting the drill bit, back joint 1 can be used for connecting the bull stick, two parts outer wall all overlap has first casing 3 about back joint 1, back joint 1 middle part outer wall cover has second casing 4, first casing 3 all with the 4 joint of second casing, all be equipped with on first casing 3 and the second casing 4 and be used for the righting mechanism 5 of righting the drill bit.

As shown in fig. 1, 3 and 4, the centering mechanism 5 comprises a fixed ring 51, a slope ring 52, limiting frames 53 and a centering component, wherein the outer wall of the first shell 3 is connected with the fixed ring 51 in a sliding manner, the outer wall of the second shell 4 is also connected with the fixed ring 51 in a sliding manner, the fixed ring 51 is connected with the slope ring 52 in a rotating manner, the outer wall of the fixed ring 51 is connected with three groups of limiting frames 53 along the circumferential direction, each group of limiting frames 53 are provided with two limiting frames 53, and the limiting frames 53 are provided with the centering component for centering the drill bit.

As shown in fig. 3 and 4, the righting assembly comprises a righting seat 54, springs 55 and rollers 56, wherein two limiting frames 53 in each group are connected with the righting seat 54 in a sliding mode, the righting seat 54 is in contact with the inner wall of a coal mine, a drill bit can be righted, protrusions are arranged on the surface of a slope-shaped ring 52, the protrusions can squeeze the righting seat 54 to move outwards, springs 55 are connected to two sides of the upper portion and the lower portion of the righting seat 54, the inner sides of the springs 55 are connected with the limiting frames 53, the springs 55 are sleeved on the limiting frames 53, the slope-shaped ring 52 is located at the inner side of the righting seat 54, the slope-shaped ring 52 rotates to squeeze the righting seat 54 to move outwards, four rollers 56 are connected to the outer portion of the righting seat 54 in a rotating mode, and the rollers 56 can facilitate the righting seat 54 to move up and down in the coal mine.

When people are drilling a coal mine, when needing to centralize the drill bit, the drill bit can be realized by the drilling tool, firstly, people connect the rear joint 1 on a power source, fix the drill bit on the front joint 2, then people adjust the position of the centralizing seat 54 according to the width of the coal mine, if the coal mine is wider, people rotate the slope-shaped ring 52, then the bulge on the slope-shaped ring 52 can push the centralizing seat 54 to move outwards, at the moment, the spring 55 is compressed, the centralizing seat 54 moves outwards to drive the roller 56 to move outwards, then people vertically extend the drilling tool into the coal mine, the drill bit can drill the coal mine, the roller 56 is contacted with the inner wall of the coal mine, the roller 56 can facilitate the downward movement of the drilling tool, the centralizing seat 54 can centralize the direction of the drill bit at the same time, so that the drill bit position can be prevented from being offset, if the coal mine width is narrower, the bulge of the slope-shaped ring 52 can be separated from the centralizing seat 54, then the centralizing seat 54 can reset inwards under the action of the spring 55, the applicability of the drilling tool can be improved, and the drill bit can be moved downwards by the drilling tool can be reduced in the direction of the coal mine by the repeated operation of the drilling tool, and the drilling tool can be reduced in the direction of the coal mine.

As shown in fig. 1, fig. 5 and fig. 6, the fixing device further comprises an adjusting mechanism 6 for adjusting and positioning the position of the fixing ring 51, the adjusting mechanism 6 comprises a limiting plate 61, a fixing plate 62 and a clamping component, the limiting plate 61 is welded on the front side and the rear side of the outer wall of the first shell 3, the limiting plate 61 is connected on the front side and the rear side of the outer wall of the second shell 4, the limiting plate 61 penetrates through the fixing ring 51, the fixing ring 51 is slidably connected with the limiting plate 61, the fixing plate 62 is connected to the upper side of the limiting plate 61 through bolts, the fixing plate 62 can limit the fixing ring 51, the clamping component is arranged on the fixing ring 51, and the clamping component can position the fixing ring 51.

As shown in fig. 5 and 6, the clamping assembly comprises a fixing seat 63 and a screw rod 64, wherein the fixing seat 63 is connected to the upper side and the lower side of the front portion and the rear portion of the fixing ring 51 through bolts, the screw rod 64 is connected to the fixing seat 63 through threads, and the screw rod 64 can fix and limit the fixing seat 63.

If people need to adjust the position of the fixed ring 51, firstly, people rotate the screw rod 64, so that the screw rod 64 is separated from the limiting plate 61, friction between the fixed seat 63 and the limiting plate 61 is reduced to the minimum, then people can move the fixed ring 51, when the fixed ring 51 moves to the position required by people, people reversely rotate the screw rod 64, so that the screw rod 64 is tightly attached to the limiting plate 61, friction between the fixed seat 63 and the limiting plate 61 can be increased, the fixed ring 51 can be prevented from automatically moving, then people can drill a coal mine well by using the drilling tool, friction between the fixed seat 63 and the limiting plate 61 is reduced by rotating the screw rod 64 repeatedly, and thus, the position of the fixed ring 51 can be adjusted, and people can drill coal mine wells with different depths conveniently.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims

1. The utility model provides a colliery is protected straight drilling and is used drilling tool in pit, a serial communication port, including rear joint (1), front joint (2), first casing (3), second casing (4) and righting mechanism (5), rear joint (1) downside is connected with front joint (2), two parts outer wall all overlap first casing (3) about rear joint (1), rear joint (1) middle part outer wall cover has second casing (4), first casing (3) all with second casing (4) joint, all be equipped with righting mechanism (5) on first casing (3) and second casing (4), fix the drill bit on front joint (2), later insert the coal mine in, through righting mechanism (5) to the direction of drill bit downshift in the great coal mine of width.

2. The drilling tool for coal mine underground straight drilling according to claim 1, wherein the centralizing mechanism (5) comprises a fixed ring (51), a slope-shaped ring (52), limiting frames (53) and centralizing components, the outer wall of the first shell (3) is connected with the fixed ring (51) in a sliding mode, the outer wall of the second shell (4) is also connected with the fixed ring (51) in a sliding mode, the slope-shaped ring (52) is connected to the fixed ring (51) in a rotating mode, three groups of limiting frames (53) are connected to the outer wall of the fixed ring (51) along the circumferential direction, each group of limiting frames (53) are provided with the centralizing components, and the centralizing components are used for centralizing the descending direction of the drill bit.

3. The drilling tool for underground coal mine straight drilling according to claim 2, wherein the righting component comprises righting seats (54), springs (55) and rollers (56), the righting seats (54) are connected between two limiting frames (53) in each group in a sliding mode, the springs (55) are connected to two sides of the upper portion and the lower portion of the righting seats (54), the inner sides of the springs (55) are connected with the limiting frames (53), the springs (55) are sleeved on the limiting frames (53), the slope-shaped rings (52) are located at the inner sides of the righting seats (54), four rollers (56) are connected to the outer portions of the righting seats (54) in a rotating mode, the slope-shaped rings (52) are rotated according to the radius of a coal mine, the righting seats (54) are pushed to move outwards, and then under the cooperation of the rollers (56), the position of a drill bit is righted in the coal mine with a large width.

4. A drill tool for coal mine downhole gauge drilling according to claim 3, wherein the surface of the ramp ring (52) is provided with protrusions.

5. The drilling tool for coal mine underground straight drilling according to claim 4, further comprising an adjusting mechanism (6) for adjusting and positioning the position of the fixed ring (51), wherein the adjusting mechanism (6) comprises a limiting plate (61), a fixed plate (62) and a clamping component, the limiting plate (61) is connected to the front side and the rear side of the outer wall of the first shell (3), the limiting plate (61) is connected to the front side and the rear side of the outer wall of the second shell (4), the limiting plate (61) penetrates through the fixed ring (51), the fixed ring (51) is connected with the limiting plate (61) in a sliding mode, the fixed plate (62) is connected to the upper side of the limiting plate (61) in a bolting mode, and the clamping component is arranged on the fixed ring (51).

6. The drilling tool for coal mine underground straight drilling according to claim 5, wherein the clamping assembly comprises a fixed seat (63) and a screw rod (64), the fixed seat (63) is bolted to the upper side and the lower side of the front portion and the rear portion of the fixed ring (51), the screw rod (64) is connected to the fixed seat (63) in a threaded manner, and the fixed seat (63) is loosened by rotating the screw rod (64), and then the position of the fixed ring (51) is adjusted.