CN111456667A

CN111456667A - Be used for colliery ground heavy-calibre drilling tool fishing device

Info

Publication number: CN111456667A
Application number: CN202010408980.4A
Authority: CN
Inventors: 李川; 范传征; 纪楠楠; 张思伟; 席二宣; 张亚伟; 陈卡
Original assignee: Chexplor Resource Exploration Technology Co ltd
Current assignee: Chexplor Resource Exploration Technology Co ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-07-28
Anticipated expiration: 2040-05-14
Also published as: CN111456667B

Abstract

The invention discloses a fishing device for a large-diameter drilling tool on the ground of a coal mine, which relates to the technical field of mine equipment and comprises a guide-in sleeve, wherein the guide-in sleeve is arranged into a horn-shaped structure, a plurality of rectangular through holes are formed in the circumferential surface of the guide-in sleeve, and arc-shaped supporting plates are arranged in the rectangular through holes; the upper end of the arc-shaped supporting plate is rotatably connected with the base and rotates along the radial direction, the arc-shaped supporting plate moves towards the center under the driving device, the guiding sleeve is fixedly connected with the base, the base is fixedly installed on the push rod, the center of the base is provided with the male cone, the upper side of the male cone is fixedly connected with the rotating shaft of the second motor, the lower side of the male cone is coaxially provided with the sleeve of the drilling tool, when the drilling tool slides into the guiding sleeve, the arc-shaped supporting plate rotates along the radial direction towards the central line under the action of the driving device and pushes the drilling tool to move towards the center, the drilling tool is centered and coaxial with the sleeve of the drilling tool, the centering efficiency and the coaxial.

Description

Be used for colliery ground heavy-calibre drilling tool fishing device

Technical Field

The invention belongs to the technical field of mine equipment, and particularly relates to a fishing device for a large-diameter drilling tool on the ground of a coal mine.

Background

Large-caliber well drilling is now increasingly widely used in the fields of underground resource development, foundation engineering construction and treatment, underground industrial facility construction and the like. Due to the fact that a large-caliber drilling tool is heavy in self weight, large in torque and large in aperture of a formed naked hole, once the drilling tool is unqualified in quality, fatigue, unreasonable in rotating speed and bit pressure control and the like in the drilling process, breakage accidents of the drilling tool such as a drill rod and a drill collar are very easy to happen, and meanwhile, due to the fact that the aperture is large, the drilling tool is easy to incline, and the drilling tool is difficult to track and salvage.

Chinese patent CN208918498U discloses a fishing device for a falling drill collar in large-caliber drilling, which comprises a hollow sleeve, a conical sleeve and a centering sleeve; the bottom end of the hollow sleeve is fixedly connected with the top end of the conical sleeve, and the bottom end of the conical sleeve is fixedly connected with the top end of the righting sleeve; the hollow sleeve, the conical sleeve and the righting sleeve are coaxially arranged; the top end of the hollow sleeve is provided with a screw thread, a vertical and downward male cone is arranged inside the hollow sleeve, and the male cone and the hollow sleeve are coaxially arranged. The utility model relates to a fishing device that is arranged in heavy-calibre probing to drop and bores very, hollow sleeve through coaxial connection in proper order, conical sleeve and right the sleeve, the cooperation is public awl, rectangle opening and semi-circular opening, can realize breaking and taking place the drilling tool of slope to heavy-calibre drilling and carry out quick salvage, have the characteristics of simple operation and dependable performance, because the quality of heavy-calibre drilling tool is great, it is great only to right the drilling tool operation degree of difficulty through conical sleeve and right the sleeve, it is consuming time longer, can increase the wearing and tearing of part simultaneously, and the axiality also is difficult to guarantee, therefore, we propose one kind and be used for colliery ground heavy-calibre drilling tool fishing device.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a fishing device for a large-diameter drilling tool on the ground of a coal mine, so as to solve the problems in the background technology.

The purpose of the invention can be realized by the following technical scheme: a fishing device for a large-diameter drilling tool on the ground of a coal mine comprises a guide-in sleeve, wherein the guide-in sleeve is arranged into a horn-shaped structure, a plurality of rectangular through holes are formed in the circumferential surface of the guide-in sleeve, and arc-shaped supporting plates are arranged in the rectangular through holes;

leading-in sleeve upper end is provided with the base, leading-in sleeve and base fixed connection, the mounting groove has been set up on the base below cylinder, the arc backup pad rotates with the mounting groove to be connected.

Preferably, a male cone is arranged in the base center circular hole, the upper portion of the male cone is fixedly connected with a second motor rotating shaft, and the second motor base is fixedly connected with the base.

Preferably, be provided with the spout on the outer periphery of arc backup pad, install sliding support in the spout, sliding support and arc backup pad sliding connection, the last connecting rod that is provided with of sliding support, the connecting rod rotates with sliding support to be connected.

Preferably, connecting rod and base sliding connection, the direction spout has been set up on the base, the connecting rod is installed in the direction spout, the base upper end is provided with first support, first support bottom surface is provided with the connecting rod fixing base, the embedding of connecting rod upper end is installed in the connecting rod fixing base to carry out fixed connection through fastening bolt.

Preferably, a first air cylinder is arranged below the first support, the first air cylinder base is fixedly connected with the first support, and the first air cylinder piston rod is fixedly connected with the lower base.

Preferably, a drill rod sleeve is coaxially arranged at the center of the guiding sleeve, the guiding sleeve of the drill rod sleeve is welded and fixed, the inner diameter of the drill rod sleeve is consistent with the outer diameter of a broken drill rod, and the lower section of the drill rod sleeve is provided with a wide opening.

Preferably, a drill bushing is arranged below the drill rod sleeve and fixedly connected with the inner wall of the leading-in sleeve, a drill bit is arranged in the drill bushing, and the left end of the drill bit is fixedly connected with the first motor.

Preferably, the left end of the first motor is fixedly connected with a piston rod of a second cylinder, a base of the second cylinder is fixedly connected with a second support, and the second support is fixedly installed with the guide-in sleeve.

Preferably, the outer diameter of the wide opening at the lower end of the leading-in sleeve is consistent with the diameter of the mine hole.

Preferably, the bottom surface of the base is provided with at least two first infrared cameras, the top surface of the inner part of the guide-in sleeve is provided with at least two second infrared cameras, and the length of each second infrared camera does not exceed the length of the drill rod sleeve.

The invention has the beneficial effects that:

1. the plurality of groups of arc supporting plates are arranged on the circumference array of the arc surface of the guide-in sleeve, when the drilling tool slides into the guide-in sleeve, the arc supporting plates move towards the direction of the central line under the action of the driving device, the drilling tool is pushed to move towards the center, the centering is realized, the centering is coaxial with the drilling tool sleeve, the centering efficiency and the coaxial precision of the drilling tool are improved, and the fishing efficiency is improved.

2. The side surface of the guide-in sleeve is radially provided with the drill sleeve, the circumferential surface of the drilling tool is radially drilled, and the drill bit is used for reversing, so that the connection stability of the drilling tool and the base is improved.

3. Be provided with the infrared camera on leading-in sleeve and base, be convenient for survey the inside condition of mine, for salvage work has improved the convenience, has improved salvage efficiency.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a left side view of the present invention;

FIG. 3 is a schematic view of the construction of the support pole of the present invention;

FIG. 4 is a schematic structural view of a fixing bar of the present invention;

in the figure: the device comprises a first support-1, a first air cylinder-2, a connecting rod fixing seat-3, a fastening bolt-4, a connecting rod-5, a guide chute-6, a sliding support-7, an arc-shaped supporting plate-8, a chute-9, a driving rod-10, a base-11, a second support-12, a second air cylinder-13, a first motor-14, a drill bit-15, a guide sleeve-16, a rectangular through hole-17, a drill sleeve-18, a male cone-19, a second motor-20, a drill rod sleeve-21, a first infrared camera-22, a mounting groove-23 and a second infrared camera-24.

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.

Example 1

Referring to fig. 1 to 4, in embodiment 1 of the present invention, a fishing device for a large-diameter drilling tool on a coal mine ground includes a guiding sleeve 16, the guiding sleeve 16 is set to be a horn-shaped structure, a plurality of rectangular through holes 17 are formed in a circumferential surface of the guiding sleeve 16, and an arc-shaped supporting plate 8 is arranged in each rectangular through hole 17; leading-in sleeve 16 upper end is provided with base 11, leading-in sleeve 16 and base 11 fixed connection, be provided with mounting groove 23 on the cylinder of base 11 below, arc backup pad 8 rotates with mounting groove 23 to be connected, and base 11 and actuating lever 10 fixed connection carry out the up-and-down motion along the mine under the drive of actuating lever 10 to can rotate along with actuating lever 10.

When the drill rod straightening device works, the driving rod 10 is started to rotate downwards, the guiding sleeve 16 is arranged to be horn-shaped, the guiding sleeve 16 slides along the inner wall of the guiding sleeve 16 after the inner wall of the guiding sleeve 16 downwards contacts with the outer circumferential surface of a drill rod, when the drill rod enters into the inner side of the guiding sleeve 16 for a half, the driving rod 10 stops downwards, the arc-shaped supporting plate 8 is driven by the driving device to rotate towards the middle, and the arc-shaped supporting plate 8 pushes the drill rod to be gradually centered and straightened.

As shown in fig. 2, a male cone 19 is arranged in a circular hole in the center of a base 11, a rotating shaft of a second motor 20 is fixedly connected above the male cone 19, the base of the second motor 20 is fixedly connected with the base 11, the second motor 20 drives the male cone 19 to rotate for working, and after a drill rod in a drill well is righted, the male cone 19 taps the upper top end of the drill rod, so that the male cone 19 is fixedly connected with the drill rod through threads, and the drill rod is taken out of the drill well.

As shown in fig. 1, a sliding groove 9 is arranged on the outer circumferential surface of the arc-shaped support plate 8, a sliding support 7 is installed in the sliding groove 9, the sliding support 7 is connected with the arc-shaped support plate 8 in a sliding manner, and the sliding support 7 slides in the sliding groove 9 to drive the sliding groove 9 to rotate; a connecting rod 5 is arranged on the sliding support 7, the connecting rod 5 is rotatably connected with the sliding support 7, and the connecting rod 5 moves up and down along the vertical direction; the base 11 is provided with a guide chute 6, the connecting rod 5 is arranged in the guide chute 6 and slides in the guide chute 6, and the guide chute 6 plays a role in limiting and guiding; the upper end of the base 11 is provided with a first support 1, a connecting rod fixing seat 3 is arranged on the bottom surface of the first support 1, the upper end of a connecting rod 5 is inserted into the connecting rod fixing seat 3, and is fixedly connected with the connecting rod through a fastening bolt 4, namely, the connecting rod 5 slides up and down along a guide sliding groove 6 to drive a sliding support 7 to slide in a sliding groove 9 so as to drive the opening and closing of an arc-shaped supporting plate 8.

First support 1 below is provided with

first cylinder

2, 2 bases of first cylinder and 1 fixed connection of first support, 2 piston rods of first cylinder and 11 fixed connection of below, can drive the up-and-down motion of first support 1 through the flexible work of first cylinder 2 to the perpendicular up-and-down motion of drive connecting rod 5.

As shown in fig. 2, a drill rod sleeve 21 is arranged on the lead-in sleeve 16, the inner diameter of the drill rod sleeve 21 is consistent with the outer diameter of a broken drill rod, the lower section of the drill rod sleeve 21 is set to be a wide mouth, after the drill rod is righted, the driving rod is moved downwards, the broken drill rod is connected with the drill rod sleeve 21 in a matching mode, a male cone can tap conveniently, and the lower end of the drill rod sleeve 21 is set to be a wide mouth, so that the drill rod can be installed in an aligning and matching mode more easily.

Example 2

In embodiment 2 of the present invention, as shown in the second cylinder 13, a drill bushing 18 is disposed below the drill rod sleeve 21, the drill bushing 18 is fixedly connected to the inner wall of the lead-in sleeve 16, a drill bit 15 is disposed in the drill bushing 18, and the left end of the drill bit 15 is fixedly connected to the first motor 14; the left end of the first motor 14 is fixedly connected with a piston rod of the second cylinder 13, a base of the second cylinder 13 is fixedly connected with the second support 12, the second support 12 is fixedly installed with the guide sleeve 16, the drill rod is basically fixed with the fishing device after tapping, the first motor 14 is started to work, the drill bit 15 is driven to rotate, the second cylinder 13 is started, the circumferential surface of the drill rod is drilled through the guide of the drill sleeve 18, the second cylinder 13 and the first motor 14 are stopped after the drill rod is drilled into the drill rod for not less than 2cm, the drill bit 15 is kept in the drill rod, the rotating rod can be limited to prevent the rotating rod from rotating to fall off, the stability of connection between the drill rod and the base 11 is improved, and a certain load effect is born.

The outer diameter of the wide opening at the lower end of the lead-in sleeve 16 is consistent with the diameter of the mine hole, and the drill rod is enabled to be brought into the lead-in sleeve 16 in the downward moving process only when the outer diameter of the wide opening of the lead-in sleeve 16 is consistent with the diameter of the mine hole due to the fact that the drill rod leans against the inner wall of the mine hole after being broken.

As shown in fig. 2 and 4, at least two first infrared cameras 22 are arranged on the bottom surface of the base 11, at least two second infrared cameras 24 are arranged on the top surface inside the guiding sleeve 16, the length of each second infrared camera 24 does not exceed the length of the drill rod sleeve 21, and the first infrared cameras 22 and the second infrared cameras 24 are arranged to facilitate observation of conditions in a mine and improve working efficiency.

The working principle of the invention is as follows: the driving rod 10 is driven to move downwards to drive the base 11 to move downwards, the guiding sleeve 16 moves downwards to extrude the drill rod into the guiding sleeve 16, the first air cylinder 2 is started to contract, the first support 1 moves downwards to drive the connecting rod 5 to move downwards, the connecting rod 5 drives the sliding support 7 to slide along the sliding groove 9 to drive the arc-shaped support plate 8 to rotate inwards to push the drill rod to move towards the middle and to be righted, the driving rod 10 is started to continue to move downwards, the drill rod enters the drill rod sleeve 21, the second motor 20 is started to rotate, the male cone 19 performs tapping on the end face of the drill rod, the driving rod 10 stops moving downwards after tapping is finished, the second air cylinder 13 and the first motor 14 are started, the drill bit 15 drills into the drill rod, the second air cylinder 13 and the first motor 14 are stopped to work, the drill bit 15 is kept in the drill rod, the rotation prevention and limiting effects are achieved, partial load can be borne during lifting, the driving rod, the base 11 is driven to move upwards, and the drill rod is fished out of the mine.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "bottom", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present invention.

Furthermore, the method is simple. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

It will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention. 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 spirit and scope of the invention, and any equivalents thereto, such as those skilled in the art, are intended to be embraced therein.

Claims

1. The fishing device for the large-caliber drilling tool on the ground of the coal mine comprises a guide-in sleeve (16), and is characterized in that the guide-in sleeve (16) is arranged into a horn-shaped structure, a plurality of rectangular through holes (17) are formed in the circumferential surface of the guide-in sleeve (16), and arc-shaped supporting plates (8) are arranged in the rectangular through holes (17);

leading-in sleeve (16) upper end is provided with base (11), leading-in sleeve (16) and base (11) fixed connection, base (11) below cylinder has set up mounting groove (23), arc backup pad (8) are rotated with mounting groove (23) and are connected.

2. The fishing device for the large-caliber drilling tool on the coal mine ground is characterized in that a male cone (19) is arranged in a central circular hole of the base (11), the upper part of the male cone (19) is fixedly connected with a rotating shaft of a second motor (20), and the base of the second motor (20) is fixedly connected with the base (11).

3. The fishing device for the large-diameter drilling tool on the coal mine ground according to claim 1, wherein a sliding groove (9) is formed in the outer circumferential surface of the arc-shaped supporting plate (8), a sliding support (7) is installed in the sliding groove (9), the sliding support (7) is connected with the arc-shaped supporting plate (8) in a sliding mode, a connecting rod (5) is arranged on the sliding support (7), and the connecting rod (5) is connected with the sliding support (7) in a rotating mode.

4. The fishing device for the large-caliber drilling tool on the coal mine ground is characterized in that the connecting rod (5) is connected with the base (11) in a sliding mode, the base (11) is provided with the guide sliding groove (6), the connecting rod (5) is installed in the guide sliding groove (6), the upper end of the base (11) is provided with the first support (1), the bottom surface of the first support (1) is provided with the connecting rod fixing seat (3), and the upper end of the connecting rod (5) is installed in the connecting rod fixing seat (3) in an embedded mode and is fixedly connected through the fastening bolt (4).

5. The fishing device for the large-caliber drilling tool on the coal mine ground is characterized in that a first air cylinder (2) is arranged below the first support (1), the base of the first air cylinder (2) is fixedly connected with the first support (1), and the piston rod of the first air cylinder (2) is fixedly connected with the lower base (11).

6. The fishing device for the large-caliber drilling tool on the coal mine ground is characterized in that a drill rod sleeve (21) is coaxially arranged at the center of the leading-in sleeve (16), the drill rod sleeve (21) is fixedly welded on the leading-in sleeve (16), the inner diameter of the drill rod sleeve (21) is consistent with the outer diameter of a broken drill rod, and the lower section of the drill rod sleeve (21) is provided with a wide mouth.

7. The coal mine ground large-diameter drilling tool fishing device according to claim 6, characterized in that a drill sleeve (18) is arranged below the drill rod sleeve (21), the drill sleeve (18) is fixedly connected with the inner wall of the guide sleeve (16), a drill bit (15) is arranged in the drill sleeve (18), and the left end of the drill bit (15) is fixedly connected with the first motor (14).

8. The fishing device for the large-caliber drilling tool on the coal mine ground is characterized in that the left end of the first motor (14) is fixedly connected with a piston rod of a second air cylinder (13), a base of the second air cylinder (13) is fixedly connected with a second support (12), and the second support (12) is fixedly installed with a guide-in sleeve (16).

9. The fishing device for the large-caliber drilling tool on the coal mine ground is characterized in that the outer diameter of the wide opening at the lower end of the guide-in sleeve (16) is consistent with the diameter of a mine hole.

10. The fishing device for the large-caliber drilling tool on the coal mine ground is characterized in that at least two first infrared cameras (22) are arranged on the bottom surface of the base (11), at least two second infrared cameras (24) are arranged on the upper top surface inside the guide-in sleeve (16), and the length of each second infrared camera (24) does not exceed that of the drill rod sleeve (21).