CN218716583U

CN218716583U - Well drilling rod convenient to dismantle

Info

Publication number: CN218716583U
Application number: CN202221765312.8U
Authority: CN
Inventors: 阳健; 李志华; 陈俊宇
Original assignee: Hunan Nanfang Drilling Machinery Co ltd
Current assignee: Hunan Nanfang Drilling Machinery Co ltd
Priority date: 2022-07-06
Filing date: 2022-07-06
Publication date: 2023-03-24
Anticipated expiration: 2032-07-06

Abstract

The utility model discloses a well drilling rod technical field's a well drilling rod convenient to dismantle, including installing the drill bit at the drilling rod lower extreme, be equipped with locking portion on the drill bit, be equipped with the locking groove that matches with locking portion appearance on the drilling rod, locking portion block just can follow a rectilinear direction and remove at the locking inslot, be equipped with on the drilling rod and be used for carrying out spacing location structure to locking portion rectilinear movement. The beneficial effects of the utility model are that: through locking portion block back in the locking inslot, and restrict locking portion lateral shifting through location structure, and then can make the drill bit install on the drilling rod fast, the drill bit of being convenient for is changed, and can not lead to the drill bit drunkenness, in addition through setting location structure to rotatory by the minor axis, and drive the cam and rotate, make the carriage inner wall of can conflicting of cam outer fringe peak, and then the driving carriage reciprocates, in this jack that makes the locking round pin can insert locking portion, make locking portion block in the locking inslot steadily.

Description

Well drilling rod convenient to dismantle

Technical Field

The utility model relates to a well drilling rod technical field specifically is a well drilling rod convenient to dismantle.

Background

The well drilling machine is a mechanical equipment for drilling well and completing well pipe and well cleaning operation, including power equipment, drill bit, drill rod, core pipe and drill frame, and is divided into rotary type rotary machine, impact type drilling machine and composite type rotary machine 3.

The present well drilling machine carries out the drilling operation through the drill bit of installing on the drilling rod, it is known, need change the drill bit of different models (mainly diameter size) during different well drilling operations, and current drill bit mainly is the mode of welding on one of them drilling rod or using holding screw and installs on the drilling rod, the change of the inconvenient different model drill bit of the former mode, although the latter mode is simple in structure, but after holding screw terminal surface wearing and tearing, the drill bit is when driling, because the cutting force is too big leads to the drill bit to produce the drunkenness phenomenon easily, and then produce the cracked phenomenon of drill bit.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is overcome prior art's defect, a well drilling rod convenient to detach is provided, in order to solve the above-mentioned technical problem, the utility model provides a following technical scheme:

the utility model provides a: the utility model provides a well drilling rod convenient to dismantle, is including installing the drill bit at the drilling rod lower extreme, be equipped with locking portion on the drill bit, be equipped with the locking groove that matches with locking portion appearance on the drilling rod, locking portion block just can follow a rectilinear direction and remove in the locking groove, be equipped with on the drilling rod and be used for carrying out spacing location structure to locking portion rectilinear movement.

In the well drill rod convenient to disassemble, the longitudinal section of the locking part is in a T shape.

As above in a well drilling rod convenient to dismantle, location structure includes the carriage, set up the slip chamber that supplies the carriage block in the drilling rod, the slip frame freely slides about sliding chamber internal energy, the carriage bottom is equipped with the locking round pin, the locking round pin freely slides about the drilling rod internal energy, be equipped with the jack that supplies the locking round pin to insert in the locking portion, be equipped with the cam in the carriage, cam outer fringe peak can be contradicted with both sides inner wall about the carriage and be connected, rotationally wear to be equipped with the minor axis on the drilling rod, the cam cup joints on the position that the minor axis penetrated the carriage.

In the well drill rod convenient to disassemble, the highest point of the outer edge of the cam is rotatably connected with the roller, and the roller and the sliding frame can be in rolling contact with the inner walls of the upper side and the lower side of the sliding frame.

In the well drill rod convenient to disassemble, the sliding cavity is internally provided with the return spring, and the return spring is positioned above the sliding frame and elastically abuts against the sliding frame.

Compared with the prior art, the beneficial effects of the utility model are that: through locking portion block back in the locking groove, and restrict locking portion lateral shifting through location structure, and then can make the drill bit install on the drilling rod fast, be convenient for the drill bit change, and can not lead to the drill bit drunkenness, in addition through setting location structure to rotatory by the minor axis, and drive the cam and rotate, make cam outer fringe peak can conflict carriage inner wall, and then the driving carriage reciprocates, so that the locking round pin can insert in the jack of locking portion, make locking portion block in the locking groove steadily, in addition through setting up reset spring, make and to produce elasticity to the carriage and support the apical force, so that the carriage natural state moves down, and then make the locking round pin insert in the jack, so make the difficult production of locking round pin not hard up, in order to guarantee the stability of locking portion at the locking groove block.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a schematic view of an assembly structure of the present invention;

fig. 2 is an enlarged schematic view of a partial structure a in fig. 1.

In the figure: 1-drill rod, 2-sliding cavity, 3-sliding frame, 4-drill bit, 5-cam, 6-reset spring, 7-roller, 8-locking pin, 9-jack, 10-short shaft and 11-locking part.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Examples

As shown in fig. 1-2, the present embodiment provides a technical solution: a well drill rod convenient to disassemble comprises a drill bit 4 installed at the lower end of a drill rod 1, a locking part 11 is arranged on the drill bit 4, a locking groove matched with the shape of the locking part 11 is formed in the drill rod 1, the locking part 11 is clamped in the locking groove and can move along a straight line direction, the longitudinal section of the locking part 11 is T-shaped, so that the locking part 11 is clamped in the locking groove, the drill bit and the drill rod cannot rotate relatively, the drill bit is ensured not to shift easily when drilling, a positioning structure used for limiting the straight line movement of the locking part 11 is arranged on the drill rod 1, the specific positioning structure comprises a sliding frame 3, a sliding cavity 2 for clamping the sliding frame 3 is formed in the drill rod 1, the sliding frame 3 can freely slide up and down in the sliding cavity 2, a locking pin 8 is arranged at the bottom of the sliding frame 3, the locking pin 8 can freely slide up and down in the drill rod 1, the locking part 11 is internally provided with a jack 9 for inserting the locking pin 8, the sliding frame 3 is internally provided with a cam 5, the highest point of the outer edge of the cam 5 can be in contact connection with the inner walls of the upper side and the lower side of the sliding frame 3, a short shaft 10 can rotatably penetrate through the drill rod 1, the cam 5 is sleeved on the part where the short shaft 10 penetrates into the sliding frame 3, two ends of the short shaft 10 are exposed out of the drill rod 1, the outer wall of the drill rod is provided with a through hole for the short shaft to freely pass through, one end of the short shaft, which is exposed out of the through hole, is provided with a blind hole with an inner hexagonal profile, so that the short shaft can be easily rotated through an external inner hexagonal tool to rotate the short shaft so as to rotate the short shaft, the driving cam is rotated to enable the highest point of the cam to upwards overturn, and further enable the cam to drive the sliding frame to upwards move so as to drive the locking pin to be separated from the inserting state of the jack, so that the locking part can slide out from the locking groove, and then convenient to detach drill bit, with the drill bit to different models is changed, and locking portion block back in the locking groove, the drill bit is in relatively stable state with the drilling rod, and then make the drill bit when carrying out drilling cutting, drilling rod and drill bit remain stable state, further 5 outer fringe peaks of cam rotate and are connected with gyro wheel 7, gyro wheel 7 can rolling contact carriage 3 upper and lower both sides inner wall with carriage 3, with this wearing and tearing volume that has reduced carriage inner wall and cam outer fringe, be equipped with reset spring 6 in sliding chamber 2 in addition, reset spring 6 is located carriage 3 top and elasticity and supports a carriage 3, under the natural state, reset spring produces elasticity to the carriage and supports the holding power, make the carriage can move down, make the carriage drive the locking round pin and move down, and then ensure the stability of locking round pin interpolation in the jack.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A well drill rod convenient to disassemble is characterized by comprising a drill bit (4) arranged at the lower end of a drill rod (1),

a locking part (11) is arranged on the drill bit (4), a locking groove matched with the locking part (11) in shape is arranged on the drill rod (1),

the locking part (11) is clamped in the locking groove and can move along a straight line direction,

the drill rod (1) is provided with a positioning structure for limiting the linear movement of the locking part (11).

2. A well drill rod facilitating disassembly as claimed in claim 1, characterized in that the longitudinal section of the locking part (11) is T-shaped.

3. A well drill rod to facilitate disassembly as claimed in claim 1, wherein the positioning structure comprises:

a sliding frame (3), a sliding cavity (2) for clamping the sliding frame (3) is formed in the drill rod (1), the sliding frame (3) can freely slide up and down in the sliding cavity (2), a locking pin (8) is arranged at the bottom of the sliding frame (3),

the locking pin (8) can freely slide up and down in the drill rod (1), a jack (9) for inserting the locking pin (8) is arranged in the locking part (11),

a cam (5) is arranged in the sliding frame (3), the highest point of the outer edge of the cam (5) can be in abutting connection with the inner walls of the upper side and the lower side of the sliding frame (3),

the drill rod (1) is rotatably provided with a short shaft (10) in a penetrating mode, and the cam (5) is sleeved on a position where the short shaft (10) penetrates into the sliding frame (3).

4. The well drill rod convenient to disassemble as claimed in claim 3, characterized in that the highest point of the outer edge of the cam (5) is rotatably connected with a roller (7), and the roller (7) and the sliding frame (3) can be in rolling contact with the inner walls of the upper side and the lower side of the sliding frame (3).

5. Well drill rod facilitating the disassembly according to claim 3, characterized in that inside said sliding chamber (2) there is a return spring (6), said return spring (6) being located above the sliding rack (3) and elastically bearing against the sliding rack (3).