CN211598549U

CN211598549U - Vibration reduction tool for drill bit and drill column

Info

Publication number: CN211598549U
Application number: CN202020266458.2U
Authority: CN
Inventors: 杨培峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-09-29
Anticipated expiration: 2030-03-06

Abstract

The utility model discloses a vibration reduction tool for a drill bit and a drill stem, which comprises a connecting cylinder, wherein the inner side wall of the connecting cylinder is welded with a first shell, the inner part of the first shell is welded with a first fixed block, the inner side wall of the first fixed block is provided with two first chutes, the inner side walls of the two first chutes are connected with a first slider in a sliding way, the inner side wall of the first slider is welded with a first rod body, the inner side wall of the first shell is bonded with a telescopic air bag, the outer side wall of the telescopic air bag is communicated with an exhaust pipe, the inner side wall of the exhaust pipe is connected with a cover body in a threaded way, the device absorbs the impact force and deforms through the telescopic air bag, a damping block, a first rubber pad and a second rubber pad, thereby achieving the vibration reduction effect, and the second rubber pad can absorb small vibration or reduce the impact load, the shock absorption effect is achieved, the vibration impact load of the drill column can be absorbed or relieved, and the drilling efficiency is improved.

Description

Vibration reduction tool for drill bit and drill column

Technical Field

The utility model relates to a drilling engineering technical field specifically is a drill bit, drilling string damping instrument.

Background

In drilling operation, the underground drill string generates longitudinal, torsional and transverse impact vibration due to the rock breaking characteristics of the drill bit, and the underground drill string is more severe particularly when drilling hard formations or soft and hard interlayers. The vibration of the drill stem brings great harm to the drilling operation, which is mainly shown in the following steps: bit weight and torque cannot be applied uniformly, so that the drill bit is damaged early, and the service life and the drilling speed of the drill bit are influenced; the fatigue damage of the drill stem is aggravated, and the connecting part of the drill stem component is the most serious, so that stabbing, sticking and breaking accidents often occur; destroying the ground equipment. Therefore, drill string damping measures are required to eliminate the risk of vibration, and the use of tool damping tools is one of the most effective methods. The damping tool can be used for adjusting the natural frequency of a bottom drill column and the shock frequency of the drill bit and absorbing or slowing down the vibration impact load of the drill column, so that the drilling speed is increased, the drilling cost is reduced, and the drilling efficiency is improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a drill bit, drilling string damping instrument to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a drill bit, drilling string damping instrument, includes the connecting cylinder, the inside wall welding of connecting cylinder has first casing, the inside welding of first casing has first fixed block, two first spouts, two have been seted up to the inside wall of first fixed block the inside wall sliding connection of first spout has first slider, the inside wall welding of first slider has the first body of rod, the inside wall of first casing bonds and has flexible gasbag, the lateral wall intercommunication of flexible gasbag has the blast pipe, the inside wall threaded connection of blast pipe has the lid.

As further preferable in the present technical solution: the welding of the inside wall of connecting cylinder has the second casing, the inside wall sliding connection of second casing has the second slider, the welding of the lateral wall of second slider has the spring, the one end that the second slider was kept away from to the spring welds with the inside wall of second casing, the welding of the lateral wall that the spring was kept away from to the second slider has the second fixed block, the second fixed block runs through the second casing, the one end of second fixed block bonds and has first plate body.

As further preferable in the present technical solution: the inside wall of connecting cylinder bonds and has the damping piece, the lateral wall sliding connection of damping piece has a spline section of thick bamboo.

As further preferable in the present technical solution: the inside wall fixedly connected with integral key shaft of a spline section of thick bamboo, the connector has been seted up to the upper surface of integral key shaft.

As further preferable in the present technical solution: the lower surface of the spline cylinder is in threaded connection with a lower joint, and a first rubber pad is bonded to the upper surface of the lower joint.

As further preferable in the present technical solution: the inner side wall of the lower joint is in threaded connection with a drill bit, and a second rubber pad is bonded to the upper surface of the drill bit.

Compared with the prior art, the beneficial effects of the utility model are that: this device absorbs deformation processing through flexible gasbag and damping piece, first rubber pad, second rubber pad to the impact force, incessantly compress and resume, reach absorbing effect, the drill bit can be because of the contact with the soil layer produces the vibration, and then drives whole device vibration, the second rubber pad can absorb some little vibrations or reduce the impact load of well drilling in-process drill bit, in order to reach the shock attenuation effect, can absorb or slow down the vibration impact load of drilling string, thereby improve the drilling speed, reduce the drilling cost, improve drilling efficiency.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged view of the area B of fig. 1 according to the present invention;

fig. 3 is an enlarged view of the area a of fig. 1 according to the present invention;

fig. 4 is a schematic view of the cover structure of the present invention.

In the figure: 1. a connecting cylinder; 2. a spline cylinder; 3. a spline shaft; 4. a connecting port; 5. a damping block; 6. a lower joint; 7. a first rubber pad; 8. a drill bit; 9. a first housing; 10. a telescopic air bag; 11. a cover body; 12. an exhaust pipe; 13. a first fixed block; 14. a first rod body; 15. a first chute; 16. a first slider; 17. a spring; 18. a second housing; 19. a first plate body; 20. a second slider; 21. a second fixed block; 22. and a second rubber pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a drill bit, drilling string damping tool, including connecting cylinder 1, the inside wall welding of connecting cylinder 1 has first casing 9, the inside welding of first casing 9 has first fixed block 13, two first spouts 15 have been seted up to the inside wall of first fixed block 13, the inside wall sliding connection of two first spouts 15 has first slider 16, the inside wall welding of first slider 16 has first body of rod 14, the inside wall of first casing 9 bonds and has flexible gasbag 10, the lateral wall intercommunication of flexible gasbag 10 has blast pipe 12, the inside wall threaded connection of blast pipe 12 has lid 11.

In this embodiment, specifically: a second shell 18 is welded on the inner side wall of the connecting cylinder 1, a second sliding block 20 is connected on the inner side wall of the second shell 18 in a sliding mode, a spring 17 is welded on the outer side wall of the second sliding block 20, one end, far away from the second sliding block 20, of the spring 17 is welded with the inner side wall of the second shell 18, a second fixed block 21 is welded on the outer side wall, far away from the spring 17, of the second sliding block 20, the second fixed block 21 penetrates through the second shell 18, and a first plate 19 is bonded on one end of the second fixed block 21; through the above arrangement, the spline cylinder 2 rocks and extrudes the first plate body 19, the first plate body 19 pushes the second fixed block 21, the second fixed block 21 pushes the second slider 20, the second slider 20 extrudes the spring 17, the vibration generated by the spline cylinder 2 is buffered, and because the first plate body 19 and the spline cylinder 2 are not directly connected, when the spring 17 pushes the second slider 20 back, the first plate body 19 can not directly impact the spline cylinder 2 to cause the spline cylinder 2 to rock again.

In this embodiment, specifically: the inner side wall of the connecting cylinder 1 is bonded with a damping block 5, and the outer side wall of the damping block 5 is connected with a spline cylinder 2 in a sliding manner; through the arrangement, when the spline cylinder 2 vibrates up and down, the damping block 5 can be impacted, the damping block 5 absorbs and deforms the impact force, and the impact force is continuously compressed and recovered, so that the effect of damping the spline cylinder 2 is achieved.

In this embodiment, specifically: the inner side wall of the spline barrel 2 is fixedly connected with a spline shaft 3, and the upper surface of the spline shaft 3 is provided with a connector 4; through the arrangement, other parts can be connected to the upper part of the device, so that the whole device can be assembled and disassembled more conveniently and quickly, and the usability of the device is improved.

In this embodiment, specifically: the lower surface of the spline cylinder 2 is in threaded connection with a lower joint 6, and a first rubber pad 7 is bonded on the upper surface of the lower joint 6; through the setting, the device is at the during operation, and drill bit 8 can be because of the vibration that produces with the contact of soil layer, and then drives whole device vibration, and second rubber pad 22 can absorb some little vibrations or reduce the impact load of drilling in-process drill bit 8 to reach the shock attenuation effect, thereby protect drill bit 8, reach and reduce the drilling cost, improve well drilling work efficiency.

In this embodiment, specifically: the inner side wall of the lower joint 6 is in threaded connection with a drill bit 8, and a second rubber pad 22 is bonded on the upper surface of the drill bit 8; through the arrangement, after the second rubber pad 22 absorbs and damps vibration, the first rubber pad 7 bonded to the upper surface of the lower joint 6 damps vibration again, so that a secondary damping effect is achieved, and vibration transmitted to the inside of the device is reduced.

Working principle or structural principle, when in use, after the first rubber pad 7 and the second rubber pad 22 primarily absorb and process vibration, the vibration still affects the operation of the device, at this time, the spline cylinder 2 impacts the first rod 14, the first rod 14 drives the first slider 16 to slide in the first chute 15 in a direction close to the telescopic airbag 10, the first rod 14 extrudes the telescopic airbag 10, the telescopic airbag 10 discharges gas outwards through the exhaust pipe 12, before the telescopic airbag 10 is restored, the first rod 14 slides downwards to return to the original position, the first rod 14 and the spline cylinder 2 are not directly connected, so that no power is generated to the spline cylinder 2 to cause secondary vibration of the spline cylinder 2, the cover 11 can be used for placing dust to block the exhaust pipe 12 and is convenient to replace, the first rod 14 impacts the telescopic airbag 10 when the spline cylinder 2 vibrates, the telescopic airbag 10 compresses and restores, the effect of damping the spline cylinder 2 is achieved, the spline cylinder 2 shakes to extrude the first plate body 19, the first plate body 19 pushes the second fixed block 21, the second fixed block 21 pushes the second sliding block 20, the second sliding block 20 extrudes the spring 17, vibration generated by the spline cylinder 2 is buffered, because the first plate body 19 is not directly connected with the spline cylinder 2, when the spring 17 pushes the second sliding block 20 back, the first plate body 19 cannot directly impact the spline cylinder 2 to cause the spline cylinder 2 to shake again, when the spline cylinder 2 generates up-and-down vibration, the damping block 5 can be impacted, the damping block 5 absorbs and deforms impact force, the compression and recovery are not stopped, the effect of damping the spline cylinder 2 is achieved, the drill bit 8 can vibrate due to contact with a soil layer to drive the whole device to vibrate, the second rubber pad 22 can absorb some small vibration or reduce impact load of the drill bit 8 in a drilling process, so as to achieve the damping effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A drill bit, drill string vibration reduction tool, comprising a connector barrel (1), characterized in that: the welding of the inside wall of connecting cylinder (1) has first casing (9), the inside welding of first casing (9) has first fixed block (13), two first spouts (15), two have been seted up to the inside wall of first fixed block (13) the inside wall sliding connection of first spout (15) has first slider (16), the inside wall welding of first slider (16) has first body of rod (14), the inside wall of first casing (9) bonds and has flexible gasbag (10), the lateral wall intercommunication of flexible gasbag (10) has blast pipe (12), the inside wall threaded connection of blast pipe (12) has lid (11).

2. A drill bit, drill string vibration reduction tool as recited in claim 1, wherein: the welding of the inside wall of connecting cylinder (1) has second casing (18), the inside wall sliding connection of second casing (18) has second slider (20), the welding of the lateral wall of second slider (20) has spring (17), the one end of second slider (20) and the inside wall welding of second casing (18) are kept away from in spring (17), the welding of the lateral wall of spring (17) is kept away from in second slider (20) has second fixed block (21), second fixed block (21) run through second casing (18), the one end of second fixed block (21) bonds and has first plate body (19).

3. A drill bit, drill string vibration reduction tool as recited in claim 1, wherein: the damping cylinder is characterized in that a damping block (5) is bonded on the inner side wall of the connecting cylinder (1), and a spline cylinder (2) is connected on the outer side wall of the damping block (5) in a sliding mode.

4. A drill bit, drill string vibration reduction tool as claimed in claim 3, wherein: the spline shaft is characterized in that a spline shaft (3) is fixedly connected to the inner side wall of the spline barrel (2), and a connecting port (4) is formed in the upper surface of the spline shaft (3).

5. A drill bit, drill string vibration reduction tool as claimed in claim 3, wherein: the lower surface of the spline cylinder (2) is in threaded connection with a lower joint (6), and a first rubber pad (7) is bonded to the upper surface of the lower joint (6).

6. A drill bit, drill string vibration reduction tool as claimed in claim 5, wherein: the inner side wall of the lower joint (6) is in threaded connection with a drill bit (8), and a second rubber pad (22) is bonded to the upper surface of the drill bit (8).