CN215565729U

CN215565729U - Universal coupling mechanism for drilling tool

Info

Publication number: CN215565729U
Application number: CN202121353027.0U
Authority: CN
Inventors: 陈珂; 陈宗学
Original assignee: Qingdao Qianyan Machinery Co ltd
Current assignee: Qingdao Qianyan Machinery Co ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2022-01-18
Anticipated expiration: 2031-06-18

Abstract

The utility model provides a universal coupling mechanism for a drilling tool, which comprises a sleeve, wherein drill rods are arranged at the upper end and the lower end of the sleeve, straight cylinders are symmetrically arranged at the outer ends of the drill rods, two U-shaped through grooves used for being matched with the straight cylinders are symmetrically formed at the upper end and the lower end of the sleeve, two annular grooves are symmetrically formed at the annular end of the sleeve, a C-shaped elastic plate is arranged in each annular groove, the C-shaped elastic plate is positioned at the outward end of each straight cylinder, one end of the C-shaped elastic plate is fixedly connected with a first straight plate, the other end of the C-shaped elastic plate is fixedly connected with a second straight plate, the second straight plate is mutually attached to the first straight plate, a fastening bolt is arranged in the middle position of one end of the second straight plate, which is far away from the first straight plate, and penetrates through the second straight plate and the first straight plate and is in threaded connection with a fastening nut, the design can utilize the fastening bolt and the fastening nut to enable the C-shaped elastic plate to be fixedly arranged in each annular groove, convenient disassembly and assembly between the drill rod and the sleeve are realized, assembly and maintenance are facilitated, and the service life is prolonged.

Description

Universal coupling mechanism for drilling tool

Technical Field

The utility model relates to a universal coupling mechanism for a drilling tool, belonging to the technical field of drilling.

Background

Drilling is the process of drilling a formation into a cylindrical borehole having a depth using mechanical equipment. In order to enhance the transmission of the deflecting force generated by the drill bit, the drill rod is often assembled and installed by using a universal coupling mechanism according to the rock breaking mode and the type of the used tools, wherein the rotary steering drilling technology is a new advanced automatic drilling technology developed in the 90 s of the 20 th century internationally.

Chinese utility model patent publication No. CN204311973U discloses a universal coupling mechanism for a rotary steerable drilling tool, which describes that a plurality of drill rods are sequentially sleeved together through cross sleeves. The universal coupling mechanism of the utility model can increase the deflecting force, so that the deflecting rate can achieve the practical effect, and the defects are as follows: a universal coupling mechanism for limiting installation cylinder, often utilize the bolt with the fastening installation between fastening block and the cross sleeve, often can take place phenomenons such as smooth silk because of the bolt, cause the bolt can't carry out the dismouting, can influence the dismouting between cross sleeve and the cylinder to reduce life, consequently need design a universal coupling mechanism for drilling tool and solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a universal coupling mechanism for a drilling tool, which aims to solve the problems in the background art.

In order to achieve the purpose, the utility model is realized by the following technical scheme: a universal coupling mechanism for a drilling tool comprises a sleeve, wherein a drill rod is arranged at the upper end and the lower end of the sleeve, the drill rod extends into the sleeve, straight cylinders which are transversely arranged are symmetrically arranged at the outer ends of the drill rods, two U-shaped through grooves which are used for being matched with the straight cylinders are symmetrically formed at the upper end and the lower end of the sleeve, the straight cylinders penetrate through the U-shaped through grooves, two annular grooves which penetrate through the U-shaped through grooves are symmetrically formed at the annular ends of the sleeve, C-shaped elastic plates are arranged in the annular grooves and are positioned at the outward ends of the straight cylinders, one ends of the C-shaped elastic plates are fixedly connected with a first straight plate, the other ends of the C-shaped elastic plates are fixedly connected with a second straight plate, the second straight plate is mutually jointed with the first straight plate, the second straight plate deviates from a fastener at the middle position of one ends of the first straight plates, and the fastener penetrates through the second straight plate and the first straight plate and is connected with a limiting part which is matched with the fastener, the first straight plate and the second straight plate are arranged in the annular groove and extend out of the outer side of the annular groove.

Further, C type elastic plate outer end fixed connection third straight board, and the setting of third straight board deviates from first straight board one side at the second straight board, the third straight board deviates from second straight board one end installation fastener, and the fastener runs through third straight board, second straight board and first straight board and is connected with the restriction piece.

Furthermore, the third straight plate deviates from one end of the second straight plate and is fixedly connected with the reinforcing piece, and the reinforcing piece is fixedly connected with the outer end of the C-shaped elastic plate.

Furthermore, the C-shaped elastic plate, the first straight plate, the second straight plate and the third straight plate are of an integrated structure.

Furthermore, a protection piece is adhered to the inner wall of the C-shaped elastic plate and attached to the vertical wall inside the annular groove.

Furthermore, an annular groove is formed in one side, facing the sleeve, of the annular end face of the drill rod, the annular groove is formed in the inner side of the straight cylinder, a sealing element is assembled on the annular groove, and the sealing element is located inside the sleeve.

Furthermore, a conical head is arranged at one end, facing the sleeve, of the drill rod.

Furthermore, threaded through holes which are transversely arranged are formed in the drill rod, a disc is arranged at one end, away from the drill rod, of the straight cylinder, the disc is fixedly connected with a stud at the middle position of one end, facing the straight cylinder, of the disc, and the stud penetrates through the straight cylinder, extends into the threaded through holes and is in threaded connection with the threaded through holes.

The utility model has the beneficial effects that: the utility model relates to a universal coupling mechanism for a drilling tool.

1. Can utilize fastening bolt and fastening nut, make C type elastic plate fastening installation in the annular groove, can utilize C type elastic plate, restrict to the straight section of thick bamboo position, realize convenient dismouting between drilling rod and the sleeve, be convenient for equipment and maintenance promote life.

2. Can utilize third straight board and second straight board, for fastening bolt's dismantlement provides the space of cutting off, the dismantlement between C type elastic plate and the sleeve of being convenient for, the follow-up maintenance or the change of being convenient for.

3. The disc can be rotated to drive the stud to rotate, so that the stud is separated from the threaded through hole, the straight cylinder and the drill rod are quickly assembled and disassembled, and the straight cylinder is convenient to assemble and maintain.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of a universal coupling mechanism for a drilling tool according to the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic view of a sleeve of a universal coupling mechanism for a drilling tool according to the present invention;

FIG. 4 is a perspective view of a C-shaped spring plate of a universal coupling mechanism for a drilling tool according to the present invention;

FIG. 5 is a cross-sectional view of a C-shaped spring plate of a universal coupling mechanism for a drilling tool according to the present invention;

FIG. 6 is a schematic illustration of a drill pipe in a universal coupling mechanism for a well tool according to the present invention.

In the figure: the drilling tool comprises a 1-sleeve, a 2-straight cylinder, a 3-C type elastic plate, a 4-drill rod, a 5-U type through groove, a 6-annular groove, a 21-disc, a 22-stud, a 31-first straight plate, a 32-second straight plate, a 33-fastening bolt, a 34-third straight plate, a 35-C type rubber pad, a 36-fastening nut, a 41-threaded through hole and a 42-rubber ring.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

Referring to fig. 1-6, the present invention provides a technical solution: a universal coupling mechanism for a drilling tool comprises a sleeve 1, installation space can be provided for a drill rod 4 through the sleeve 1, the upper end and the lower end of the sleeve 1 are respectively provided with the drill rod 4, the drill rod 4 extends into the sleeve 1, the outer end of the drill rod 4 is symmetrically provided with a transversely arranged straight cylinder 2, the straight cylinder 2 is matched with a U-shaped through groove 5 for use, limited installation between the sleeve 1 and the drill rod 4 is realized, the upper end and the lower end of the sleeve 1 are respectively symmetrically provided with two U-shaped through grooves 5 for being matched with the straight cylinder 2 for use, installation space can be provided for the straight cylinder 2 through the U-shaped through groove 5, the straight cylinder 2 penetrates through the U-shaped through groove 5, two annular grooves 6 are symmetrically arranged at the annular end of the sleeve 1, the annular grooves 6 penetrate through the U-shaped through groove 5, installation space can be provided for C-shaped elastic plates 3 through the annular grooves 6, the C-shaped elastic plates 3 are arranged in the annular grooves 6, and the C-shaped elastic plates 3 are positioned towards the outer ends of the straight cylinders 2, through the C-shaped elastic plate 3, the installation between the straight cylinder 2 and the sleeve 1 can be limited, the elasticity of the C-shaped elastic plate 3 can be utilized, the C-shaped elastic plate 3 and the annular groove 6 can be conveniently disassembled and assembled, one end of the C-shaped elastic plate 3 is fixedly connected with the first straight plate 31, the first straight plate 31 is matched with the second straight plate 32 for use, an installation carrier can be provided for the fastening bolt 33 and the fastening nut 36, the other end of the C-shaped elastic plate 3 is fixedly connected with the second straight plate 32, the second straight plate 32 is mutually attached to the first straight plate 31, the fastening bolt 33 is arranged at the middle position of one end of the second straight plate 32, which is far away from the first straight plate 31, and the fastening bolt 33 penetrates through the second straight plate 32 and the first straight plate 31 and is in threaded connection with a fastening nut 36 used for being matched with the fastening bolt 33, the fastening bolt 33 is matched with the fastening nut 36 for use, the C-shaped elastic plate 3 is fastened and installed in the annular groove 6, and the first straight plate 31 and the second straight plate 32 are arranged in the annular groove 6 and extend out of the annular groove 6.

Specifically, can insert drilling rod 4 in sleeve 1 to two straight section of thick bamboo 2 on making drilling rod 4 insert two U type logical groove 5 that correspond on the sleeve 1, then in 3 suits of C type elastic plate to annular groove 6, make fastening bolt 33 run through first straight plate 31 and the straight board 32 of second and with fastening nut 36 threaded connection again, and then make 3 fastening installations of C type elastic plate in annular groove 6, can utilize C type elastic plate 3, restrict straight section of thick bamboo 2 position, realize convenient dismouting between drilling rod 4 and the sleeve 1, be convenient for assemble and maintain, promote life.

The outer end of the C-shaped elastic plate 3 is fixedly connected with a third straight plate 34, the third straight plate 34 is matched with the second straight plate 32 for use, a cutting space can be provided for a fastening bolt 33, the detachment between the fastening bolt 33 and a fastening nut 36 is convenient, the third straight plate 34 is arranged on one side, away from the first straight plate 31, of the second straight plate 32, the fastening bolt 33 is installed at one end, away from the second straight plate 32, of the third straight plate 34, the fastening bolt 33 penetrates through the third straight plate 34, the second straight plate 32 and the first straight plate 31 and is in threaded connection with the fastening nut 36, specifically, the fastening bolt 33 can penetrate through the third straight plate 34, the second straight plate 32 and the first straight plate 31 and is in threaded connection with the fastening nut 36, so that the C-shaped elastic plate 3 is fastened and installed, at the moment, a gap is formed between the third straight plate 34 and the second straight plate 32, a section of threads of the fastening bolt 33 can be exposed by utilizing the rod part gap, when the detachment between the fastening bolt 33 and the fastening nut 36 is caused by iron rust and the like, can cut off the exposed section of the fastening bolt 33, is convenient for the disassembly between the C-shaped elastic plate 3 and the sleeve 1, and is convenient for the subsequent maintenance or the replacement.

The third straight board 34 deviates from second straight board 32 one end fixed connection set square, and set square and 3 outer ends fixed connection of C type elastic plate, specifically, set up the set square in third

straight board

34 and 3 hookup location of C type elastic plate, increase joint strength between third straight board 34 and the C type elastic plate 3.

The C-shaped elastic plate 3, the first straight plate 31, the second straight plate 32 and the third straight plate 34 are integrated, and particularly, the integrated structure is designed to facilitate production.

3 inner walls of C type elastic plate bond C type rubber pad 35, through C type rubber pad 35, realize safeguard function, and the laminating of C type rubber pad 35 is on the inside vertical wall of annular groove 6, specifically, set up C type rubber pad 35 in C type elastic plate 3, be used for keeping apart C type

elastic plate

3 and 6 inner walls of annular groove, both avoid taking place the wearing and tearing phenomenon, the security is good, promote life, also reduce and produce the clearance between C type elastic plate 3 and the annular groove 6 after the installation, avoid taking place to rock the phenomenon, the noise reduction takes place.

The annular end face of the drill rod 4 is provided with an annular groove towards one side of the sleeve 1, an installation space can be provided for the rubber ring 42 through the annular groove, the rubber ring 42 is installed on the drill rod 4, the annular groove is arranged on the straight cylinder 2 towards the inner side, the rubber ring 42 is assembled on the annular groove, the rubber ring 42 is located inside the sleeve 1, specifically, the rubber ring 42 is sleeved on the drill rod 4, the drill rod 4 is inserted into the sleeve 1, and the sealing connection between the drill rod 4 and the sleeve 1 is achieved.

The drill rod 4 is provided with a conical head towards one end of the sleeve 1, and particularly, the conical head is arranged on the drill rod 4, so that the drill rod 4 can be conveniently inserted into the sleeve 1, and the assembly operation is convenient.

The drill rod 4 is provided with a threaded through hole 41 which is transversely arranged, the threaded through hole 41 can provide an installation space for the stud 22, one end of the straight cylinder 2, which is far away from the drill rod 4, is provided with a disc 21, the disc 21 can be used for rotating the stud 22 and preventing the straight cylinder 2 from falling off from the stud 22, the disc 21 is fixedly connected with the stud 22 at the middle position facing one end of the straight cylinder 2, the stud 22 is matched with the threaded through hole 41 for use, the straight cylinder 2 can be conveniently and rapidly installed on the drill rod 4, the stud 22 penetrates through the straight cylinder 2, extends into the threaded through hole 41 and is in threaded connection with the threaded through hole 41, particularly, the disc 21 can be rotated, thereby driving the stud 22 to rotate, and the stud 22 moves along the threaded through hole 41 due to the threaded connection between the stud 22 and the threaded through hole 41, thereby separating the stud 22 from the threaded through hole 41, realizing the quick assembly and disassembly between the straight cylinder 2 and the drill rod 4, and facilitating the assembly and maintenance of the straight cylinder 2.

While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A universal coupling mechanism for a drilling tool, comprising: comprises a sleeve (1), wherein the upper end and the lower end of the sleeve (1) are respectively provided with a drill rod (4), the drill rods (4) extend into the sleeve (1), the outer ends of the drill rods (4) are symmetrically provided with a straight cylinder (2) which is transversely arranged, the upper end and the lower end of the sleeve (1) are respectively and symmetrically provided with two U-shaped through grooves (5) which are used for being matched with the straight cylinder (2), the straight cylinder (2) penetrates through the U-shaped through grooves (5), the annular end of the sleeve (1) is symmetrically provided with two annular grooves (6), the annular grooves (6) penetrate through the U-shaped through grooves (5), a C-shaped elastic plate (3) is arranged in each annular groove (6), the C-shaped elastic plate (3) is positioned at the outer end of the straight cylinder (2), one end of the C-shaped elastic plate (3) is fixedly connected with a first straight plate (31), the other end of the C-shaped elastic plate (3) is fixedly connected with a second straight plate (32), and the second straight plate (32) is mutually attached with the first straight plate (31), the second straight plate (32) deviates from a fastener at the middle position of one end of the first straight plate (31), the fastener penetrates through the second straight plate (32) and the first straight plate (31) and is connected with a limiting piece used for being matched with the fastener, and the first straight plate (31) and the second straight plate (32) are arranged in the annular groove (6) and extend out of the annular groove (6).

2. A universal coupling mechanism for a drilling tool as recited in claim 1, wherein: c type elastic plate (3) outer end fixed connection third straight plate (34), and third straight plate (34) set up and deviate from first straight plate (31) one side at second straight plate (32), third straight plate (34) deviate from second straight plate (32) one end installation fastener, and the fastener runs through third straight plate (34), second straight plate (32) and first straight plate (31) and is connected with the restriction piece.

3. A universal coupling mechanism for a drilling tool as recited in claim 2, wherein: and one end of the third straight plate (34) departing from the second straight plate (32) is fixedly connected with a reinforcing piece, and the reinforcing piece is fixedly connected with the outer end of the C-shaped elastic plate (3).

4. A universal coupling mechanism for a drilling tool as recited in claim 2, wherein: the C-shaped elastic plate (3), the first straight plate (31), the second straight plate (32) and the third straight plate (34) are of an integrated structure.

5. A universal coupling mechanism for a drilling tool as recited in claim 1, wherein: and a protection piece is adhered to the inner wall of the C-shaped elastic plate (3), and the protection piece is attached to the vertical wall in the annular groove (6).

6. A universal coupling mechanism for a drilling tool as recited in claim 1, wherein: an annular groove is formed in one side, facing the sleeve (1), of the annular end face of the drill rod (4), the annular groove is formed in the inner side of the straight cylinder (2), a sealing element is assembled on the annular groove, and the sealing element is located inside the sleeve (1).

7. A universal coupling mechanism for a drilling tool as recited in claim 1, wherein: and one end of the drill rod (4) facing the sleeve (1) is provided with a conical head.

8. A universal coupling mechanism for a drilling tool as recited in claim 1, wherein: the drill rod (4) is provided with a threaded through hole (41) which is transversely arranged, one end of the straight cylinder (2) departing from the drill rod (4) is provided with a disc (21), the disc (21) is fixedly connected with a stud (22) facing the middle position of one end of the straight cylinder (2), and the stud (22) penetrates through the straight cylinder (2) and extends into the threaded through hole (41) and is in threaded connection with the threaded through hole (41).