CN110735597A

CN110735597A - hydraulic drive drill bit impactor

Info

Publication number: CN110735597A
Application number: CN201911062698.9A
Authority: CN
Inventors: 闫铁; 李沼萱; 邵阳; 孙晓峰; 袁圆; 刘照义
Original assignee: Northeast Petroleum University
Current assignee: Northeast Petroleum University
Priority date: 2019-11-03
Filing date: 2019-11-03
Publication date: 2020-01-31
Anticipated expiration: 2039-11-03
Also published as: CN110735597B

Abstract

The invention relates to an hydraulic drive drill bit impactor, which comprises a shell, a helical blade, a middle cavity, a spring, a vibrator, an upper toothed ring, a lower toothed ring and a drill bit, wherein a turntable rail is arranged at the upper part of the shell, the turntable is embedded in the turntable rail, the outer side of the helical blade is arranged on the inner wall of the turntable, the upper end of a connecting column is arranged on the helical blade, the lower end of the connecting column penetrates through the middle cavity to extend into the vibrator and is fixedly connected with the lower toothed ring, the middle cavity is arranged in the shell and is positioned below the turntable rail, the vibrator is arranged in the middle cavity, the lower end of the spring is connected with the vibrator, the upper end of the spring is connected with the middle cavity, the wall of the middle cavity is provided with a pore passage, the upper toothed ring is arranged in the vibrator and corresponds to the lower toothed ring, the outer wall of the vibrator is provided with two symmetrically arranged clamping pieces, the inner wall of the middle cavity is provided with a vibration groove.

Description

hydraulic drive drill bit impactor

The technical field is as follows:

the invention relates to a fluid power-generating impactor in the field of drilling engineering, in particular to hydraulic drive bit impactors.

Background art:

the impacter is used as a power tool for assisting in rock breaking underground, receives more and more attention from the industry because no additional energy is required to be provided, and gradually becomes indispensable technical means for increasing the speed of the deep well.

The invention content is as follows:

it is an object of the present invention to provide hydraulically driven bit impactors that address the problems of slower drilling speed and lower tool impact performance as well depths continue to increase.

The hydraulic drive drill bit impactor comprises a shell, a spiral blade, a middle cavity, a spring, a vibrator, an upper toothed ring, a lower toothed ring, a connector and a drill bit, wherein a turntable rail is arranged at the upper part of the shell, the turntable is embedded in the turntable rail, the outer side of the spiral blade is arranged on the inner wall of the turntable, the upper end of a connecting column is arranged on the spiral blade, the lower end of the connecting column penetrates through the middle cavity to extend into the vibrator and is fixedly connected with the lower toothed ring, the middle cavity is arranged in the shell and is positioned below the turntable rail, the vibrator is arranged in the middle cavity, the lower end of the spring is connected with the vibrator, the upper end of the spring is connected with the middle cavity, the wall of the middle cavity is provided with a pore passage, the upper end of the pore passage is communicated with the inner cavity of the shell, the lower end of the pore passage points to the drill bit, the vibrator is a closed cylindrical object, the upper toothed ring is arranged in the vibrator and corresponds to the lower toothed ring, two clamping pieces are symmetrically arranged on the outer wall of the vibrator.

In the scheme, the tooth-shaped structures of the upper tooth ring and the lower tooth ring are the same, each tooth is -side vertical, another -side forms an included angle of 30 degrees with the vertical side, so that the tooth-shaped structures can be better matched with , the spring is in a compressed state, the card is located at the lowest end of the vibration groove in a static state, the upper tooth ring and the lower tooth ring are tightly sealed, and the maximum length of the vertical parts of the tooth-shaped structures of the upper tooth ring and the lower tooth ring is smaller than the moving distance of the card in the vibration groove.

In the scheme, the top of the upper toothed ring and the top of the vibrator are bodies.

In the scheme, the pore channels are uniformly arranged along the circumferential direction of the middle cavity wall.

In the scheme, the connector is arc-shaped, the upper end surface of the connector is fixedly connected with the bottom of the vibrator, and the arc-shaped part of the connector is matched with the drill bit.

The invention has the following beneficial effects:

1. the invention ensures that the drill bit generates good longitudinal vibration through the matching motion of the upper gear ring and the lower gear ring, and the speed-up effect is very obvious.

2. The invention drives the helical blade through water power, provides power for the lower toothed ring, can save energy consumption and is very practical.

3. The invention has simple structure, easy realization and lower cost, and is convenient for the application of pushing in the oil field.

Fourthly, explanation of the attached drawings:

fig. 1 is a three-dimensional cross-sectional view of the present invention.

Fig. 2 is a perspective view of the present invention.

Fig. 3 is a two-dimensional cross-sectional view of the present invention.

FIG. 4 is a schematic view of the relationship between the middle vibrating groove and the card in accordance with the present invention.

FIG. 5 is a schematic diagram of the relationship between the vibrator and the central cavity in the present invention.

FIG. 6 is a diagram showing the positional relationship among the upper ring gear, the lower ring gear, the connecting column, the vibrator, the middle chamber, and the housing according to the present invention.

In the figure: 1. the drilling machine comprises a shell, 2. a turntable track, 3. a turntable, 4. a connecting column, 5. a helical blade, 6. a middle cavity, 7. a spring, 8. a vibrator, 9. a pore passage, 10. a vibration groove, 11. a clamping piece, 12. an upper toothed ring, 13. a lower toothed ring, 14. a connector and 15. a drill bit.

Detailed Description

The invention is further described with reference to the following drawings:

referring to fig. 1-6, the hydraulically driven drill impactor comprises a shell 1, a helical blade 5, a middle cavity 6, a spring 7, a vibrator 8, an upper toothed ring 12, a lower toothed ring 13, a connector 14 and a drill 15, wherein a turntable rail 2 is installed on the upper portion of the shell 1, a turntable 3 is embedded in the turntable rail 2, the outer side of the helical blade 5 is installed on the inner wall of the turntable 3, the upper end of a connecting column 4 is installed on the helical blade 5, the lower end of the connecting column 4 penetrates through the middle cavity 6 to extend into the vibrator 8 and is fixedly connected with the lower toothed ring 13, the lower toothed ring 13 is driven to rotate by the connecting column 4 when the helical blade 5 rotates, the middle cavity 6 is installed in the shell 1 and is located below the turntable rail 2, the vibrator 8 is arranged in the middle cavity 6, the lower end of the spring 7 is connected with the vibrator 8, the upper end of the spring 7 is connected with the middle cavity 6, the upper end of the middle cavity is provided with a duct 9, the upper end of the duct 9 is communicated with an inner cavity, the hole 9 is uniformly arranged along the circumferential direction of the middle cavity wall, the lower end of the duct 9, the drill is directed to 15, the vibrator, the drill 358 is connected with the vibrator, the drill 15, the drill is connected.

The vibrator 8 is a closed cylindrical object, an upper toothed ring 12 is arranged in the vibrator 8, the upper toothed ring 12 corresponds to a lower toothed ring 13, teeth of the upper toothed ring 12 are meshed with teeth of the lower toothed ring 13, and a gap is reserved between two corresponding teeth, so that the lower toothed ring 13 drives the upper toothed ring 12 to move up and down when rotating, two clamping pieces 11 symmetrically arranged are arranged on the outer wall of the vibrator 8, a vibration groove 10 is formed in the inner wall of the middle cavity 6, the two clamping pieces 11 are respectively positioned in the corresponding vibration grooves 10, and the clamping pieces 11 can slide up and down in the vibration grooves 10;

the upper toothed ring 12 and the top of the vibrator 8 are -shaped, the toothed structures of the upper toothed ring 12 and the lower toothed ring 13 are the same, each tooth is -side vertical, an included angle of 30 degrees is formed between -side and the vertical side, so that the upper toothed ring 12 and the lower toothed ring 13 can be better matched with , the spring 7 is in a compressed state, in a static state, the card 11 is located at the lowest end of the vibration groove 10, the upper toothed ring 12 and the lower toothed ring 13 are tightly connected, and the maximum length of the vertical part of the toothed structures of the upper toothed ring 12 and the lower toothed ring 13 is smaller than the maximum length of the card 11 moving in the vibration groove 10.

When liquid flows downwards from the upper end, the liquid firstly passes through the spiral blade 5, the spiral blade 5 rotates anticlockwise, the rotary disc 3 is connected with the spiral blade 5 to rotate in the rotary disc track 2, the spiral blade 5 drives the lower toothed ring 13 to rotate anticlockwise through the connecting column 4, the lower toothed ring 13 drives the upper toothed ring 12 to move up and down when rotating anticlockwise, the design of the clamping piece 11 and the vibration groove 10 enables the upper toothed ring 12 to only move up and down and avoid the upper toothed ring 12 to rotate horizontally along with the lower toothed ring 13, and the spring 7 is always in a compression state, so that after the tooth-shaped structures of the upper toothed ring 12 and the lower toothed ring 13 are scratched, the upper toothed ring 12 is pushed downwards to be matched with the lower toothed ring 13 again to enter into the axial direction of the vibrator for times, and the liquid passing through the spiral blade 5 flows to the drill bit 15 through.

Claims

The hydraulic drive drill bit impactor is characterized by comprising a shell (1), a helical blade (5), a middle cavity (6), a spring (7), a vibrator (8), an upper toothed ring (12), a lower toothed ring (13), a connector (14) and a drill bit (15), wherein a turntable rail (2) is installed on the upper portion of the shell (1), a turntable (3) is embedded in the turntable rail (2), the outer side of the helical blade (5) is installed on the inner wall of the turntable, the upper end of a connecting column (4) is installed on the helical blade (5), the lower end of the connecting column (4) penetrates through the middle cavity (6) and extends into the vibrator (8) and is fixedly connected with the lower toothed ring (13), the middle cavity (6) is installed in the shell (1) and is located below the turntable rail (2), the vibrator (8) is arranged in the middle cavity (6), the lower end of the spring (7) is connected with the vibrator (8), the upper end of the spring (7) is connected with the middle cavity (6), a duct (9) is provided with the upper end of the middle cavity (9), the vibrator (10) is connected with a clamp ring (10), and two vibrating grooves (11) are arranged in the inner wall of the vibrator (10), and are correspondingly and are arranged in the upper toothed ring (10).
2. The hydraulically driven drill impactor as defined in claim 1, wherein said upper toothed ring (12) and said lower toothed ring (13) have the same tooth profile, each tooth is -side vertical, another -side forms an angle of 30 ° with the vertical, said spring (7) is in a compressed state, and in a static state, said card (11) is located at the lowest end of said vibration groove (10), said upper toothed ring (12) and said lower toothed ring (13) are closely fitted, and the maximum length of the vertical part of the tooth profile of said upper toothed ring (12) and said lower toothed ring (13) is smaller than the distance of the card moving in said vibration groove (10).
3. The hydraulically driven drill impactor as defined in claim 2 wherein said upper toothed ring (12) and said vibrator (8) are -shaped at the top.
4. The hydraulically driven bit impactor of claim 3 wherein: the pore channels (9) are uniformly arranged along the circumferential direction of the middle cavity wall.
5. The hydraulically driven bit impactor of claim 4 wherein: the connector (14) is arc-shaped, the upper end surface of the connector is fixedly connected with the bottom of the vibrator (8), and the arc-shaped part of the connector is matched with the drill bit (15).