CN218542147U

CN218542147U - Axial impactor

Info

Publication number: CN218542147U
Application number: CN202223023171.5U
Authority: CN
Inventors: 陈宗涛; 刘正衡; 柯钰怡; 曾勇
Original assignee: Hubei Engineering University
Current assignee: Beijing Zhichanhui Technology Co ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-02-28
Anticipated expiration: 2032-11-11

Abstract

The utility model provides an axial impactor, which comprises a housin, be provided with in the casing and rotate first pivot and the second pivot of being connected and being parallel to each other with shells inner wall, first pivot and second pivot are passed through gear drive and are connected, first pivot is connected with and is used for driving first pivot pivoted drive arrangement, be provided with the first impacter of telescopic and second impacter in first pivot and the second pivot respectively perpendicularly, it is provided with first straight-bar and second straight-bar to slide on the shells inner wall, the side of first straight-bar and second straight-bar is provided with first lug and second lug respectively, first impacter and second impacter pass through striking first lug and the first straight-bar of second lug control and second straight-bar impact housing bottom. According to the axial impactor, the first straight rod and the second straight rod are controlled by the two impact hammers, the total of impact force is improved by the impact force of the two impact hammers and the gravitational potential energy of the impact hammers, and the energy efficiency of equipment is further improved.

Description

Axial impactor

Technical Field

The utility model relates to a boring tool technical field, concretely relates to axial impacter.

Background

With the development of society, the demand of human beings for natural resources is increasing day by day, and the energy used by people at present still mainly takes fossil fuels such as coal, petroleum, natural gas, shale gas and the like. As the years of production have increased, the surface-level, easily-mined fossil fuels have become less and more production of deep, difficult-to-mine fossil fuels is required, which presents a greater challenge to the drilling arts.

The hardness of deep stratum rock is high, and when drilling a deep hard rock well by a traditional rotary cutting rock breaking mode, the drilling difficulty is high, the mechanical drilling speed is low, the drilling cost is high, and the economic benefit of drilling engineering is seriously influenced. The drilling difficulty of the deep hard rock stratum prompts the development of a high-efficiency rock breaking technology, and the related indoor test and the field test of the predecessor show that when the drill bit has periodic impact force, the rock breaking efficiency of the drill bit is greatly improved, so that the mechanical drilling speed is improved, and the production cost is reduced. The axial impactor is used as a power tool for assisting in breaking rocks underground, and because extra energy does not need to be provided, the axial impactor receives more and more attention from the industry, and gradually becomes an indispensable technical means for accelerating deep wells. Theoretical analysis and field test research show that the axial impact tool can attach high-frequency axial impact force to the drill bit to generate impact vibration, assist the drill bit in rock breaking, improve rock breaking efficiency and reduce production cost.

The conventional axial impactor can be designed into the conventional axial impactor for petroleum drilling through controlling parameters of liquid flow and rotation turns, and can also be designed into the small-caliber axial impactor for drilling and drilling small-caliber holes, but the axial impactor under the two conditions is low in energy utilization rate and energy efficiency ratio.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an axial impactor that energy utilization is high to prior art's defect.

The utility model provides an axial impactor, which comprises a housin, be provided with in the casing and rotate first pivot and the second pivot of being connected and being parallel to each other with shells inner wall, first pivot and second pivot are passed through gear drive and are connected, first pivot is connected with and is used for driving first pivot pivoted drive arrangement, be provided with the first impacter of telescopic and second impacter in first pivot and the second pivot respectively perpendicularly, it is provided with first straight-bar and second straight-bar to slide on the inner wall of casing, the side of first straight-bar and second straight-bar is provided with first lug and second lug respectively, first impacter and second impacter strike the casing bottom through striking first lug and second lug control first straight-bar and second straight-bar.

Furthermore, the fixed ends of the first impact hammer and the second impact hammer are respectively provided with a first waist-shaped hole and a second waist-shaped hole, the length directions of the first waist-shaped hole and the second waist-shaped hole are respectively parallel to the length directions of the first impact hammer and the second impact hammer, and the first impact hammer and the second impact hammer can respectively move along the direction perpendicular to the first rotating shaft and the second rotating shaft through the first waist-shaped hole and the second waist-shaped hole.

Furthermore, a first punch hammer guide surface is arranged at the impact position of the first punch hammer and the first bump, a first bump guide surface matched with the first punch hammer guide surface is arranged on the first bump, a second punch hammer guide surface is arranged at the impact position of the second punch hammer and the second bump, and a second bump guide surface matched with the second punch hammer guide surface is arranged on the second bump.

Further, the first hammer guide surface, the second hammer guide surface, the first lug guide surface and the second lug guide surface are all inclined surfaces.

Further, the first hammer punch is perpendicular to the second hammer punch.

Further, a liquid inlet is formed in the top of the shell, a liquid outlet is formed in the bottom of the shell, the driving device comprises an impeller arranged on the first rotating shaft, and the impeller is arranged under the liquid inlet.

Further, rolling bearings are arranged between the first rotating shaft and the inner wall of the shell and between the second rotating shaft and the inner wall of the shell.

Further, the casing includes the outer tube that is used for connecting the drill bit, the casing still includes first support piece, second support piece and the third support piece of setting in the outer tube, first support piece, second support piece and third support piece are laminated each other and are formed the cylinder structure.

Further, a first cavity is formed between the first support and the second support, and a second cavity is formed between the second support and the third support.

Further, the first straight rod and the second straight rod are arranged on the inner wall of the third supporting piece, the gear is arranged in the first cavity, and the impeller, the first punch hammer and the second punch hammer are arranged in the second cavity.

The beneficial effects of the utility model are that:

1. the utility model discloses utilize high-pressure drilling fluid to strike the impeller, drive first pivot and second pivot and rotate, and then drive first impact hammer and second impact hammer and be approximate circular motion along the axial, realize the purpose of axial impact, through carrying out approximate circular motion back with the impact hammer for the impact force of two impact hammers and the gravitational potential energy of impact hammer self have promoted the total of impulsive force, and then have promoted the efficiency of equipment.

2. The utility model discloses a with first impact hammer and the perpendicular setting of second impact hammer, realized the periodic impact to the casing bottom, be favorable to improving broken rock efficiency more.

3. The utility model discloses a gear drive can the drive ratio of stability, and gear drive is longe-lived, is fit for the multiple condition.

4. The utility model discloses an axial impact frequency is relevant with the pivot rotational speed, and the pivot rotational speed is unanimous with the impeller rotational speed, and the impeller rotational speed is by well drilling flow velocity of flow control, so can control impacter impact frequency through drilling fluid flow, velocity of flow etc..

Drawings

Fig. 1 is a front sectional view of the present invention;

fig. 2 is a side sectional view of the present invention;

FIG. 3 is a partial schematic structural view of the present invention;

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

fig. 5 is a schematic structural view of the outer tube of the present invention;

fig. 6 is a schematic structural view of the first support member of the present invention;

FIG. 7 is a schematic view of a second support member according to the present invention;

fig. 8 is a schematic structural view of a third supporting member according to the present invention;

fig. 9 is a schematic structural view of the first rotating shaft of the present invention;

fig. 10 is a schematic structural view of a second rotating shaft according to the present invention;

fig. 11 is a schematic structural view of the gear of the present invention;

fig. 12 is a schematic structural view of the impeller of the present invention;

fig. 13 is a schematic structural view of the first punch hammer of the present invention;

fig. 14 is a schematic structural view of a second punch hammer of the present invention;

fig. 15 is a schematic structural view of the first straight rod of the present invention;

fig. 16 is a schematic structural view of a second straight rod of the present invention.

Reference numerals are as follows: 1. a joint; 101. a flow guide channel; 2. a third support member; 201. a first guide groove; 202. a second guide groove; 203. a first mounting hole; 204. a second mounting hole; 3. a second support member; 301. a liquid inlet; 302. a third mounting hole; 303. a fourth mounting hole; 304. a liquid discharge port; 4. a first support member; 401. a fifth mounting hole; 402. a sixth mounting hole; 5. a rolling bearing; 6. a first rotating shaft; 601. a first kidney shaped keyway; 602. a flat key groove; 603. a first square hole; 604. a first limit hole; 7. a second rotating shaft; 701. a second kidney-shaped keyway; 702. a second square hole; 703. a second limiting hole; 8. a gear; 801. a gear keyway; 9. an impeller; 901. an impeller shaft; 902. a blade; 903. an impeller keyway; 10. a first straight bar; 1001. a first bump; 11. a cylindrical pin; 12. a second straight rod; 1202. a second bump; 13. a first ram; 1301. a first waist-shaped hole; 1302. a first ram guide surface; 14. a second hammer punch; 1401. a second waist-shaped hole; 1402. a second hammer guide surface; 15. a first flat key; 16. a second flat key; 17. an outer tube.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

As shown in fig. 1, an axial impactor comprises a housing, wherein a first rotating shaft 6 and a second rotating shaft 7 which are rotatably connected with the inner wall of the housing and are parallel to each other are arranged in the housing, the first rotating shaft 6 and the second rotating shaft 7 are in transmission connection through a gear 8, the first rotating shaft 6 is connected with a driving device for driving the first rotating shaft 6 to rotate, a first telescopic impact hammer 13 and a second telescopic impact hammer 14 are respectively and vertically arranged on the first rotating shaft 6 and the second rotating shaft 7, as shown in fig. 15 and 16, a first straight rod 10 and a second straight rod 12 are slidably arranged on the inner wall of the housing, first protrusions 1001 and second protrusions 1202 are respectively arranged on the side surfaces of the first straight rod 10 and the second straight rod 12, and the first impact hammer 13 and the second impact hammer 14 control the first straight rod 10 and the second straight rod 12 to impact the bottom of the housing by impacting the first protrusions 1001 and the second protrusions 1202.

Specifically, the housing is cylindrical, the first rotating shaft 6 is disposed right above the second rotating shaft 7, as shown in fig. 3, 9 and 10, the gear 8 is provided with a gear key slot 801, the first rotating shaft 6 and the second rotating shaft 7 are respectively provided with a first kidney-shaped key slot 601 and a second kidney-shaped key slot 701, and the first kidney-shaped key slot 601 and the second kidney-shaped key slot 701 are both connected with the gear 8 through a first flat key 15 in a matching manner.

It can be understood that, by driving the rotation of the first rotating shaft 6 through the driving device, the first rotating shaft 6 will also drive the second rotating shaft 7 to rotate, the first punch 13 and the second punch 14 will rotate along with the rotation of the first rotating shaft 6 and the second rotating shaft 7, so that the first punch 13 hits the first bump 1001 and the second punch 14 hits the second bump 1202, and since the first punch 13 and the second punch 14 can extend and contract in the direction perpendicular to the first rotating shaft 6 and the second rotating shaft 7, when the first punch 13 hits the first bump 1001 or the second punch 14 hits the second bump 1202, the first punch 13 or the second punch 14 will retract a part into the first rotating shaft 6 or the second rotating shaft 7, so that the first punch 13 or the second punch 14 is separated from the first bump 1001 or the second bump 1202, thereby realizing the circular motion of the first punch 13 or the second punch 14; the first lug 1001 and the second lug 1202 respectively drive the first straight rod 10 and the second straight rod 12 to impact the bottom of the shell, and the first straight rod 10 and the second straight rod 12 assist the drill bit in rock breaking by generating impact vibration due to the fact that the bottom of the shell is connected with the drill bit, and rock breaking efficiency is improved. The first punch hammer 13 and the second punch hammer 14 can simultaneously impact the first lug 1001 and the second lug 1202, and can also impact the first lug and the second lug 1202 at different times, so that the working efficiency of the axial impactor is doubled, and the energy utilization rate is improved.

As shown in fig. 13 and 14, in some embodiments, the fixed ends of the first and

second hammers

13 and 14 are respectively provided with a first and second kidney-shaped

holes

1301 and 1401, the length directions of the first and second kidney-shaped

holes

1301 and 1401 are respectively parallel to the length directions of the first and

second hammers

13 and 14, and the first and

second hammers

13 and 14 can move in the direction perpendicular to the first and second

rotating shafts

6 and 7 through the first and second kidney-shaped

holes

1301 and 1401.

Specifically, as shown in fig. 9 and 10, a first square hole 603 and a second square hole 702, and a first limit hole 604 and a second limit hole 703 are respectively provided on the first rotating shaft 6 and the second rotating shaft 7, the hammer punch mounting holes and the limit holes are vertically arranged, the first hammer punch 13 and the second hammer punch 14 are respectively mounted in the hammer punch mounting holes of the first rotating shaft 6 and the second rotating shaft 7, and then the first hammer punch 13 or the second hammer punch 14 is limited by passing the cylindrical pin 11 through the limit holes and the first kidney-shaped hole 1301 or the second kidney-shaped hole 1401, so that the first hammer punch 13 or the second hammer punch 14 can only extend and retract within the length range of the kidney-shaped hole.

In some embodiments, a first ram guide surface 1302 is disposed at the impact position of the first ram 13 and the first bump 1001, a first bump 1001 guide surface matched with the first ram guide surface 1302 is disposed on the first bump 1001, a second ram guide surface 1402 is disposed at the impact position of the second ram 14 and the second bump 1202, and a second bump 1202 guide surface matched with the second ram guide surface 1402 is disposed on the second bump 1202.

Specifically, the first hammer guide surface 1302, the second hammer guide surface 1402, the first bump 1001 guide surface, and the second bump 1202 guide surface are all inclined slopes.

It can be understood that, by providing the inclined guide surface, it is beneficial to rapidly retract and continue circular motion after the first punch 13 or the second punch 14 is impacted, so that the blocking effect of the first lug 1001 and the second lug 1202 on the first punch 13 and the second punch 14 is reduced, the energy loss of the first punch 13 and the second punch 14 is reduced, and the energy utilization rate is further improved.

As shown in fig. 2 and 3, in some embodiments, the first ram 13 is perpendicular to the second ram 14.

It can be understood that when the first ram 13 is perpendicular to the second ram 14, if the first rotating shaft 6 rotates clockwise, the second rotating shaft 7 rotates counterclockwise, and the first ram 13 and the second ram 14 do not impact simultaneously, so that the first straight rod 10 and the second straight rod 12 impact the bottom of the casing periodically, which is beneficial to improving the drilling efficiency.

In some embodiments, the housing has a liquid inlet 301 at the top and a liquid outlet 304 at the bottom, and the driving device includes an impeller 9 disposed on the first rotating shaft 6, wherein the impeller 9 is disposed directly below the liquid inlet 301.

Specifically, as shown in fig. 9 and 12, a flat key groove 602 is formed in the first rotating shaft 6, the impeller 9 includes an impeller shaft 901 and blades 902 uniformly arranged along a circumferential direction of the impeller shaft 901, an impeller key groove 903 matched with the flat key groove 602 is formed in the impeller shaft 901, a second flat key 16 is arranged between the impeller key groove 903 and the flat key groove 602, and the blades 902 are used for receiving an impact force of a liquid.

It can be understood that the high-pressure drilling fluid directly impacts the blades 902 of the impeller 9 through the fluid inlet 301, and the impeller 9 uses the impact force of the fluid as the power for rotation, so as to drive the first rotating shaft 6 to rotate, thereby implementing the driving function.

In some embodiments, rolling bearings 5 are disposed between the first and

second shafts

6, 7 and the inner wall of the housing.

Specifically, the rolling bearing 5 can change sliding friction between a running shaft and a shell into rolling friction, so that friction loss is reduced, the rolling bearing 5 is a deep groove ball bearing, the deep groove ball bearing is small in friction resistance and high in rotating speed, can be used for parts bearing radial loads or combined loads acting in the radial direction and the axial direction at the same time, can also be used for parts bearing axial loads, and is suitable for working conditions where collision can occur.

The casing includes the outer tube 17 that is used for connecting the drill bit, the casing includes first support 4, second support 3 and third support 2 that set up in outer tube 17, first support 4, second support 3 and third support 2 laminate each other and form the cylinder structure.

A first cavity is formed between the first support 4 and the second support 3, and a second cavity is formed between the second support 3 and the third support 2.

The first straight bar 10 and the second straight bar 12 are arranged on the inner wall of the third support member 2, the gear 8 is arranged in the first cavity, and the impeller 9, the first punch 13 and the second punch 14 are arranged in the second cavity.

It can be understood that by separating the gear 8 from the impeller 9, the first punch 13 and the second punch 14, and not placing them in a cavity, the interference between the parts can be reduced, and the stability of the whole structure can be improved.

As shown in fig. 6, the first supporting member 4 includes a top surface, a bottom surface and an arc-shaped side surface, and a fifth mounting hole 401 and a sixth mounting hole 402 for mounting the first rotating shaft 6 and the second rotating shaft 7 are formed in the side surface of the first supporting member 4.

As shown in fig. 7, the second supporting member 3 is plate-shaped, the liquid inlet 301 is disposed at the top of the second supporting member 3, the liquid outlet 304 is disposed at the bottom of the second supporting member 3, and a third mounting hole 302 and a fourth mounting hole 303 for mounting the first rotating shaft 6 and the second rotating shaft 7 are disposed on the side surface of the second supporting member 3.

The first support member 4 and the second support member 3 are jointed to form a complete hollow semi-cylindrical structure.

As shown in fig. 8, the third supporting member 2 includes a semicircular top surface, a semicircular bottom surface, and an arc-shaped side surface, and is integrally formed in a hollow semicircular cylinder structure cut along a cross section passing through an axis, the top surface of the third supporting member 2 is provided with a first guide groove 201 and a second guide groove 202 through which the first straight rod 10 and the second straight rod 12 pass, and the side surface of the third supporting member 2 is provided with a first mounting hole 203 and a second mounting hole 204 for mounting the first rotating shaft 6 and the second rotating shaft 7.

As shown in fig. 4, the housing further includes a joint 1 disposed above the first support member 4, the second support member 3, and the third support member 2, a flow guide channel 101 communicated with the liquid inlet 301 is disposed on the joint 1, an outer diameter of the joint 1 is equal to an outer diameter of a structure formed by the three support members, an upper end of the joint 1 is connected to the drill rod, and the joint 1 is connected to the first support member 4, the second support member 3, and the third support member 2 through threads.

The working process of the axial impactor is as follows: high-pressure drilling fluid enters through the flow guide channel 101 of the joint 1 and the liquid inlet 301 of the second supporting piece 3, so that the blades 902 of the impeller 9 are impacted, the impeller 9 rotates, the impeller 9 drives the first rotating shaft 6 connected with the impeller 9 to rotate, and the first impact hammer 13 on the first rotating shaft 6 starts to move; when the first rotating shaft 6 rotates, the gear 8 on the first rotating shaft 6 drives the gear 8 on the second rotating shaft 7 to move, so as to drive the second rotating shaft 7 to move, and further drive the second punch hammer 14 to work, when the first punch hammer 13 and the second punch hammer 14 respectively strike the first lug 1001 and the second lug 1201 in sequence, the first straight rod 10 and the second straight rod 12 connected with the first punch hammer are sequentially hammered towards the bottom of the first supporting piece 4, so as to provide power for impacting rocks. The first punch 13 and the second punch 14 are provided with the kidney-shaped holes, so that the circular motion can be continued after the first lug 1001 and the second lug 1201 are hit and retracted inwards.

The above-mentioned embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims

1. An axial impactor, characterized in that: the novel energy-saving device comprises a shell, wherein a first rotating shaft (6) and a second rotating shaft (7) which are connected with the inner wall of the shell in a rotating mode and are parallel to each other are arranged in the shell, the first rotating shaft (6) and the second rotating shaft (7) are connected through a gear (8) in a transmission mode, the first rotating shaft (6) is connected with a driving device used for driving the first rotating shaft (6) to rotate, a first telescopic impact hammer (13) and a second telescopic impact hammer (14) are vertically arranged on the first rotating shaft (6) and the second rotating shaft (7) respectively, a first straight rod (10) and a second straight rod (12) are arranged on the inner wall of the shell in a sliding mode, a first convex block (1001) and a second convex block (1202) are arranged on the side faces of the first straight rod (10) and the second straight rod (12) respectively, and the first impact hammer (13) and the second impact hammer (14) control the first straight rod (10) and the second straight rod (12) to impact the bottom of the shell through impacting the first convex block (1001) and the second convex block (1202).

2. The axial impactor of claim 1, wherein: the fixed ends of the first punch hammer (13) and the second punch hammer (14) are respectively provided with a first waist-shaped hole (1301) and a second waist-shaped hole (1401), the length directions of the first waist-shaped hole (1301) and the second waist-shaped hole (1401) are respectively parallel to the length directions of the first punch hammer (13) and the second punch hammer (14), and the first punch hammer (13) and the second punch hammer (14) can respectively move in the direction perpendicular to the first rotating shaft (6) and the second rotating shaft (7) through the first waist-shaped hole (1301) and the second waist-shaped hole (1401).

3. The axial impactor of claim 2, wherein: a first punch hammer guide surface (1302) is arranged at the impact position of the first punch hammer (13) and the first bump (1001), a first bump (1001) guide surface matched with the first punch hammer guide surface (1302) is arranged on the first bump (1001), a second punch hammer guide surface (1402) is arranged at the impact position of the second punch hammer (14) and the second bump (1202), and a second bump (1202) guide surface matched with the second punch hammer guide surface (1402) is arranged on the second bump (1202).

4. The axial impactor of claim 3, wherein: the first punch hammer guide surface (1302), the second punch hammer guide surface (1402), the first lug (1001) guide surface and the second lug (1202) guide surface are all inclined surfaces.

5. The axial impactor of claim 1, wherein: the first ram (13) is perpendicular to the second ram (14).

6. The axial impactor of any one of claims 1 to 5, wherein: the liquid inlet (301) is formed in the top of the shell, the liquid outlet (304) is formed in the bottom of the shell, the driving device comprises an impeller (9) arranged on the first rotating shaft (6), and the impeller (9) is arranged under the liquid inlet (301).

7. An axial impactor as defined in any one of claims 1 to 5, wherein: and rolling bearings (5) are arranged between the first rotating shaft (6), the second rotating shaft (7) and the inner wall of the shell.

8. The axial impactor of claim 6, wherein: the casing is including outer tube (17) that is used for connecting the drill bit, the casing is still including setting up first support piece (4), second support piece (3) and third support piece (2) in outer tube (17), first support piece (4), second support piece (3) and third support piece (2) are laminated each other and are formed the cylinder structure.

9. The axial impactor of claim 8, wherein: a first cavity is formed between the first support (4) and the second support (3), and a second cavity is formed between the second support (3) and the third support (2).

10. The axial impactor of claim 9, wherein: the first straight rod (10) and the second straight rod (12) are arranged on the inner wall of the third supporting piece (2), the gear (8) is arranged in the first cavity, and the impeller (9), the first punch hammer (13) and the second punch hammer (14) are arranged in the second cavity.