阅读说明：本技术 一种煤矿用地质钻杆 (Geological drill rod for coal mine ) 是由 束容与 花吉 夏秀娟 杨波 陈红军 于 2020-06-11 设计创作，主要内容包括：本发明公开一种煤矿用地质钻杆,包括钻杆杆体,钻杆杆体一端设置连接台,另一端设置连接座,前一钻杆杆体的连接台插入于后一钻杆杆体的连接座中；连接台的外部螺纹面沿螺旋线方向布置有多个卡接部,卡接部用于插入连接座内壁面上的卡接通道中；连接台的轴线处设有通孔,抽气孔一将该通孔与连接台的外壁面连通,连接座上开设有与抽气孔一对应连通的抽气孔二,抽气孔二用于连接抽气设备。在螺纹连接的基础上增加了卡接部,卡接部旋入到对应的卡接通道内起到限位的作用,防止钻杆受到较大扭矩时螺纹连接会滑脱；在此基础上,还增加了用来连接抽气设备的抽气孔,通过抽气设备将连接座和连接台的固定处抽成负压状态,使得连接的钻杆之间稳定性更高。(The invention discloses a geological drill rod for a coal mine, which comprises a drill rod body, wherein one end of the drill rod body is provided with a connecting platform, the other end of the drill rod body is provided with a connecting seat, and the connecting platform of the previous drill rod body is inserted into the connecting seat of the next drill rod body; a plurality of clamping parts are arranged on the external thread surface of the connecting table along the spiral line direction, and the clamping parts are used for being inserted into clamping channels on the inner wall surface of the connecting seat; the axis department of connecting the platform is equipped with the through-hole, and aspirating hole one is with this through-hole and the outer wall intercommunication of connecting the platform, sets up the aspirating hole two that corresponds the intercommunication with the aspirating hole on the connecting seat, and aspirating hole two is used for connecting air exhaust equipment. The clamping part is added on the basis of threaded connection, and the clamping part is screwed into the corresponding clamping channel to play a limiting role, so that the threaded connection is prevented from slipping when the drill rod is subjected to a larger torque; on this basis, still increased the aspirating hole that is used for connecting air exhaust equipment, taken out into negative pressure state through air exhaust equipment with the fixed department of connecting seat and connection platform for stability is higher between the drilling rod of connecting.)

1. A geological drill rod for coal mines is characterized in that: the drill rod comprises a drill rod body, wherein one end of the drill rod body is provided with a connecting platform, the other end of the drill rod body is provided with a connecting seat, and the connecting platform of the previous drill rod body is inserted into the connecting seat of the next drill rod body; a plurality of clamping parts are arranged on the external thread surface of the connecting table along the spiral line direction, and the clamping parts are used for being inserted into clamping channels on the inner wall surface of the connecting seat; the connecting platform is characterized in that a through hole is formed in the axis of the connecting platform, the through hole is communicated with the outer wall surface of the connecting platform through a first air exhaust hole, a second air exhaust hole correspondingly communicated with the first air exhaust hole is formed in the connecting seat, and the second air exhaust hole is used for being connected with air exhaust equipment.

2. The geological drill rod for coal mines as set forth in claim 1, wherein: joint portion includes joint head, bracing piece, locking piece and spring, the mounting hole has been seted up on the connection bench, be provided with in the mounting hole the joint head, the joint head is in the mounting hole with the cross-under the one end fixed connection of bracing piece, be provided with in the mounting hole the locking piece, set up on the locking piece with the centre bore that the bracing piece is connected, and the hole wall of centre bore on the symmetry set up the configuration groove, the bracing piece cross-under on the body of rod between joint head and locking piece the spring, just the body of rod surface symmetry of bracing piece sets up the locking plate that connects with the configuration groove.

3. The geological drill rod for coal mines as set forth in claim 2, wherein: and the clamping connector on the surface of the connecting table is matched and connected with the clamping channel on the inner wall surface of the connecting seat.

4. The geological drill rod for coal mines as set forth in claim 2, wherein: the connecting platform is of a threaded cone frustum structure, and the inclined plane of the head end part of the clamping joint is a plane parallel to the inclined edge of the connecting platform.

5. The geological drill rod for coal mines as set forth in claim 1, wherein: the other end of the clamping channel is communicated with the outer wall surface of the connecting seat, a magnetic attraction piece is arranged at an opening of the connecting seat, which is located in the channel, and the magnetic attraction piece is used for sealing and opening the opening.

6. The geological drill rod for coal mines as set forth in claim 5, wherein: one end of the magnetic attraction piece is fixed on the connecting seat through a rotating shaft, and the other end of the magnetic attraction piece can rotate around the rotating shaft under the action of thrust.

7. The geological drill rod for coal mines as set forth in claim 1, wherein: and a magnetic suction sheet is also arranged at the opening of the outer wall surface of the connecting seat corresponding to the second pumping hole.

8. The geological drill rod for coal mines as set forth in claim 1, wherein: the air extraction equipment is a vacuum air extraction pump.

Technical Field

The invention relates to the technical field of drill rods, in particular to a geological drill rod for a coal mine.

Background

In coal mining, a drilling machine and a drill rod are common equipment, and the drill rod is connected with a drill bushing of the drilling machine through threads. When the drilling machine drills, the torque received by the drill rod is large, the thread of the drill rod is easy to damage, the drill rod is scrapped, consumption is increased, the drill rod needs to be detached when the drill rod drills a hole, when the drill rod is pulled out and detached, the detached drill rod and the drill sleeve of the drilling machine or the adjacent drill rod are connected through the threads, therefore, the adjacent drill rod connected with the detached drill rod needs to be fixed, and the drilling machine rotates and retreats to complete detachment. In the disassembling process, the phenomena that one end of the disassembled drill rod is loosened and one end of the disassembled drill rod is connected through threads often occur. At this time, the worker is required to manually disassemble the drill rod. The disassembly efficiency is low, and the labor intensity of workers is high.

Disclosure of Invention

The invention aims to provide a geological drill rod for a coal mine, which solves the problems in the prior art, and has the advantages of stable and firm connection, difficult damage and long service life.

In order to achieve the purpose, the invention provides the following scheme: the invention provides a geological drill rod for a coal mine, which comprises a drill rod body, wherein one end of the drill rod body is provided with a connecting platform, the other end of the drill rod body is provided with a connecting seat, and the connecting platform of the previous drill rod body is inserted into the connecting seat of the next drill rod body; a plurality of clamping parts are arranged on the external thread surface of the connecting table along the spiral line direction, and the clamping parts are used for being inserted into clamping channels on the inner wall surface of the connecting seat; the connecting platform is characterized in that a through hole is formed in the axis of the connecting platform, the through hole is communicated with the outer wall surface of the connecting platform through a first air exhaust hole, a second air exhaust hole correspondingly communicated with the first air exhaust hole is formed in the connecting seat, and the second air exhaust hole is used for being connected with air exhaust equipment.

Preferably, joint portion includes joint head, bracing piece, locking piece and spring, the mounting hole has been seted up on the connection bench, be provided with in the mounting hole the joint head, the joint head is in the mounting hole with the cross-under the one end fixed connection of bracing piece, be provided with in the mounting hole the locking piece, set up on the locking piece with the centre bore that the bracing piece is connected, and the symmetry sets up the configuration groove on the hole wall of centre bore, the bracing piece cross-under on the body of rod between joint head and locking piece the spring, just the body of rod surface symmetry of bracing piece sets up the locking plate that connects with the configuration groove.

Preferably, the clamping connector on the surface of the connecting table is matched and connected with the clamping channel on the inner wall surface of the connecting seat.

Preferably, the connecting platform is of a threaded truncated cone structure, and the inclined surface of the head end part of the clamping head is a surface parallel to the inclined edge of the connecting platform.

Preferably, the other end of the clamping channel is communicated with the outer wall surface of the connecting seat, a magnetic attraction piece is arranged at an opening of the connecting seat, which is located on the channel, and the magnetic attraction piece is used for sealing and opening the opening.

Preferably, one end of the magnetic attraction piece is fixed on the connecting seat through a rotating shaft, and the other end of the magnetic attraction piece can rotate around the rotating shaft under the action of thrust.

Preferably, the outer wall surface of the connecting seat is also provided with a magnetic suction sheet at an opening corresponding to the second air suction hole.

Preferably, the suction device is a vacuum suction pump.

Compared with the prior art, the invention has the following technical effects:

according to the geological drill rod for the coal mine, the clamping part and the clamping channel are additionally arranged on the basis of the conventional threaded connection, so that the phenomenon that the drill rod is separated due to large torque is prevented in the working process of the drill rod; the threaded connection and the clamping connection are combined, so that the drill rod is connected more firmly, on the basis, the connecting seat and the connecting platform are in a negative pressure state through the air exhaust hole, the working stability of the drill rod can be greatly improved, and the drill rod is convenient to disassemble.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a geological drill pipe for coal mines;

FIG. 2 is a schematic view of the installation of the connection platform and the connection base;

FIG. 3 is a structural assembly view of the clamping portion;

FIG. 4 is a schematic end view of a mounting aperture;

wherein, 1 a drill rod body; 2, connecting the platforms; 21 a clamping part; 211 a bayonet joint; 212 mounting holes; 213 a locking block; 214 spring; 215 a support rod; 216 locking tab; 217 a rubber block; 218 a mating slot; 219 central bore; 22, a first air suction hole; 23 through holes; 3, a connecting seat; 31 clamping the channel; and 32 air pumping holes II.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention aims to provide a geological drill rod for a coal mine, which solves the problems in the prior art, is stable and firm in connection, convenient to disassemble and assemble, not easy to damage and long in service life.

The geological drill rod for the coal mine comprises drill rod bodies, wherein one end of each drill rod body is provided with a connecting platform, the other end of each drill rod body is provided with a connecting seat, and the connecting platform of the previous drill rod body is inserted into the connecting seat of the next drill rod body; a plurality of clamping parts are arranged on the external thread surface of the connecting table along the spiral line direction, and the clamping parts are used for being inserted into clamping channels on the inner wall surface of the connecting seat; the axis department of connecting the platform is equipped with the through-hole, and aspirating hole one is with this through-hole and the outer wall intercommunication of connecting the platform, sets up the aspirating hole two that corresponds the intercommunication with the aspirating hole on the connecting seat, and aspirating hole two is used for connecting air exhaust equipment.

The drill rod bodies are connected end to end, the connecting platform of the previous drill rod body is matched with the connecting seat of the next drill rod body, the clamping part is added on the basis of threaded connection, and the clamping part is screwed into the corresponding clamping channel to play a role in limiting, so that the threaded connection can be prevented from slipping when the drill rod is subjected to a large torque; on this basis, still increased the aspirating hole that is used for connecting air exhaust equipment, taken out into negative pressure state through air exhaust equipment with the fixed department of connecting seat and connection platform for stability is higher between the drilling rod of connecting.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As shown in fig. 1-4, the embodiment provides a geological drill rod for coal mine, which includes a drill rod body 1, wherein one end of the drill rod body 1 is provided with a connecting platform 2, the other end is provided with a connecting seat 3, and the connecting platform 2 of the previous drill rod body 1 is inserted into the connecting seat 3 of the next drill rod body 1; a plurality of clamping parts 21 are arranged on the external thread surface of the connecting table 2 along the spiral line direction, and the clamping parts 21 are used for being inserted into clamping channels 31 on the inner wall surface of the connecting seat 3; the axis of the connecting table 2 is provided with a through hole 23, the through hole 23 is communicated with the outer wall surface of the connecting table 2 through a first air suction hole 22, a second air suction hole 32 correspondingly communicated with the first air suction hole 22 is formed in the connecting base 3, and the second air suction hole 32 is used for being connected with air suction equipment.

In the geological drill rod for the coal mine, the clamping parts 21 and the clamping channels 31 are additionally arranged on the basis of the existing threaded connection, the clamping parts 21 are screwed into the corresponding clamping channels 31 to play a limiting role, and the phenomenon that the drill rod is separated due to large torque is prevented in the working process of the drill rod; threaded connection combines together with the joint for the connection of drilling rod is more firm, on this basis, makes connecting seat 3 and connection platform 2 be in the negative pressure state through the aspirating hole, can improve the job stabilization nature of drilling rod greatly.

The present embodiment provides a geological drill rod for coal mine, based on the previous embodiment, the clamping portion 21 in this embodiment includes a clamping head 211, a supporting rod 215, a locking block 213 and a spring 214, the connecting table 2 is provided with a mounting hole 212, the clamping head 211 is disposed in the mounting hole 212, the clamping head 211 is fixedly connected to one end of the supporting rod 215 penetrating in the mounting hole 212, the locking block 213 is disposed in the mounting hole 212, the locking block 213 is provided with a central hole 219 connected to the supporting rod 215, the wall surface of the central hole 219 is symmetrically provided with a matching groove 218, the supporting rod 215 penetrates the spring 214 on the rod body between the clamping head 211 and the locking block 213, and the surface of the rod body of the supporting rod 215 is symmetrically provided with locking pieces 216 connected to the matching groove 218.

In this embodiment, the one end of bracing piece 215 is connected with joint 211, the other end and the pore wall looks butt of through-hole 23, and the pad is equipped with rubber block 217 between bracing piece 215 and the pore wall, the deformation volume of this rubber block 217 equals the length that joint 211 stretches out 2 lateral surfaces of connection platform, when needs are dismantled to the drilling rod body of rod 1, adopt the push rod to inwards push away joint 211 through the opposite side of joint passageway 31, make joint 211 can follow bracing piece 215's axial and contract back to connect in the platform 2, and then can conveniently be with connecting platform 2 and connecting seat 3 separation, after both separate, joint 211 is under the spring action of spring 214 and rubber block 217, can resume original state of stretching out again.

In order to make the connecting seat 3 and the connecting platform 2 be capable of being conveniently connected in a matching manner, in the embodiment, the clamping joint 211 on the surface of the connecting platform 2 is matched and connected with the clamping channel 31 on the inner wall surface of the connecting seat 3; the connecting platform 2 is a threaded cone frustum structure, and the inclined plane of the head end part of the clamping joint 211 is a plane parallel to the inclined edge of the connecting platform 2.

In the geological drill rod for coal mine in the embodiment, the end of the drill rod body 1 is connected with the connecting seat 3 through the connecting platform 2, when the connecting platform 2 is connected with the connecting seat 3, the clamping part 21 is just inserted into the clamping channel 31, so that the rotation freedom of the drill rod body 1 is limited, the clamping joint 211 is arranged on the clamping part 21, when the connecting platform 2 is rotatably installed relative to the connecting seat 3 through threads, the clamping joint 211 compresses the spring 214 in the mounting hole 212, the clamping joint 211 is pressed into the mounting hole 212, the clamping joint 211 is inserted into the clamping channel 31 when meeting the clamping channel 31 in the rotating process, when the clamping joint 211 is aligned with the clamping channel 31, the clamping joint 211 is bounced into the clamping channel 31 under the restoring force of the spring 214, then the connecting part of the connecting seat 3 and the connecting platform 2 is vacuumized through the air exhaust hole, so that the connecting part is in a negative pressure state, then, the clamping channel 31 and the air suction hole are closed, and the locking connection between the connecting platform 2 of the drill rod body 1 and the connecting seat 3 is realized; when dismantling the drilling rod, open joint passageway 31 and the outside seal of aspirating hole earlier, release connecting seat 3 and the pressure of connection platform 2 department, then inwards extrude joint 211 through the push rod, make joint 211 withdraw into in connecting platform 2, swivelling joint platform 2 and connecting seat 3, will connect platform 2 and extract from connecting seat 3 afterwards can.

In another embodiment, the other end of the clamping channel 31 is communicated with the outer wall surface of the connecting seat 3, and a magnetic attraction sheet is arranged at an opening of the connecting seat 3, which is positioned at the channel, and is used for sealing and opening the opening; the outer wall surface of the connecting seat 3 is also provided with a magnetic suction sheet at an opening corresponding to the second pumping hole 32. The structure and the working principle of the magnetic attraction piece outside the clamping channel 31 and the air suction hole II 32 are the same, one end of the magnetic attraction piece is fixed on the connecting seat 3 through a rotating shaft, and the other end of the magnetic attraction piece can rotate around the rotating shaft under the action of thrust. After the clamping part 21 is clamped in place and vacuumized, the magnetic suction pieces at the two positions are rotated to seal the opening, and compared with the conventional threaded sealing cover, the magnetic suction pieces have better connection stability; when the drill rod body 1 needs to be disassembled, the magnetic suction pieces at the two positions are firstly opened, and then the next operation is carried out.

The geological drill rod for the coal mine has the characteristics of stable and firm connection, difficulty in damage and long service life.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.