CN214161508U

CN214161508U - Underwater drilling positioning mechanism

Info

Publication number: CN214161508U
Application number: CN202120160649.5U
Authority: CN
Inventors: 刘明亮; 吴伟涛; 黄铖彬
Original assignee: Guangdong Changxin Construction Co ltd
Current assignee: Guangdong Changxin Construction Co ltd
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2021-09-10
Anticipated expiration: 2031-01-20

Abstract

The utility model belongs to the technical field of drilling under water and specifically relates to a drilling positioning mechanism under water is related to, and it includes the drill bit holding ring, be provided with a plurality of air springs on the drill bit holding ring, it is a plurality of the air spring is followed drill bit holding ring circumference equidistance distributes, and all air springs carry out the centre gripping location to the drill bit jointly. This application has the effect that improves the security of drilling construction under water.

Description

Underwater drilling positioning mechanism

Technical Field

The application relates to the field of underwater drilling, in particular to an underwater drilling positioning mechanism.

Background

The underwater drilling is the construction of drilling underwater by using a drilling device, the underwater drilling is influenced by buoyancy, workers are difficult to accurately perform underwater drilling construction due to light refraction, and the construction quality of the underwater drilling is not high. In order to improve the quality of underwater drilling, chinese patent No. CN208132050U discloses a drill positioning device for underwater drilling equipment, which includes a bracket and a positioning sleeve, wherein the positioning sleeve is provided with a positioning hole, and a positioning device is provided in cooperation with the positioning hole, and the positioning device is used to position a drill of the drilling device. In the above patent, the drill bit of drilling equipment receives positioner's rigidity spacing so that the drill bit is difficult for shaking in drilling process, but when the drill bit produced great shaking force, the drill bit produced fracture or rupture easily under positioner's rigidity limiting displacement, leads to drilling construction under water unsafe.

In view of the above-mentioned related art, the inventor believes that underwater drilling has a disadvantage of low safety.

SUMMERY OF THE UTILITY MODEL

In order to improve the security of drilling construction under water, this application provides a drilling positioning mechanism under water.

The application provides a drilling positioning mechanism adopts following technical scheme under water:

the utility model provides an underwater drilling positioning mechanism, includes the drill bit holding ring, be provided with a plurality of air springs on the drill bit holding ring, it is a plurality of the air spring is followed drill bit holding ring circumference equidistance distributes, and all air springs carry out the centre gripping location to the drill bit jointly.

Through adopting above-mentioned technical scheme, all air springs carry out the centre gripping location to the drill bit jointly, and the air spring has the flexible volume of elasticity, carries out the in-process of centre gripping location to the drill bit, allows the drill bit to produce less displacement under great shaking force, avoids appearing the drill bit and receives the cracked condition of rigidity clamping-force, improves the security when fixing a position the drill bit.

Optionally, one end of the gas spring close to the center of the drill bit positioning ring is provided with a universal wheel.

Through adopting above-mentioned technical scheme, when the air spring carries out the centre gripping to the drill bit, the universal wheel directly contradicts in the drill bit, at the drilling process of drill bit, produces the rolling frictional force between universal wheel and the drill bit for the removal of drill bit is stable.

Optionally, the end part of the gas spring connected with the universal wheel is provided with a connecting piece, the connecting piece is fixed at the end part of the gas spring in a threaded manner, and the universal wheel is fixed on the connecting piece through a screw.

Through adopting above-mentioned technical scheme, connecting piece and air spring threaded connection, the universal wheel passes through the fix with screw in connecting piece, connects the universal wheel on the air spring from this for the position state of universal wheel is stable, and is stable to the centre gripping location effect of drill bit.

Optionally, the drill positioning ring includes a first half body and a second half body, the first half body is provided with a hinged block, the second half body is provided with a hinged insert block, the hinged block is hinged to the hinged insert block so that the first half body and the second half body are rotatably connected, the first half body is further provided with a first fixing plate, the second half body is further provided with a second fixing plate, and the first fixing plate and the second fixing plate are fixedly connected through screws and nuts so that the first half body and the second half body are fixed.

By adopting the technical scheme, the first half body and the second half body are hinged to each other through the hinge insertion block, when the first half body and the second half body are fixed, the first fixing plate and the second fixing plate are fixed, so that the first half body and the second half body are more conveniently and stably fixedly connected, and the drill bit is more conveniently and stably positioned.

Optionally, the drill positioning ring is connected the position of the air spring is provided with a jack, the pressure cylinder of the air spring is inserted into the jack, the pressure cylinder of the air spring is fixedly provided with a limiting block, the hole wall of the jack is further provided with a yielding groove, and the limiting block is in sliding fit with the yielding groove.

By adopting the technical scheme, the limiting block is in sliding fit with the abdicating groove, so that the pressure cylinder of the air spring can stably slide in the jack, and the position state of the air spring is stable; the stopper can slide in the groove of stepping down for the air spring has certain displacement space, when fixing a position the drill bit, the drill bit can insert more easily between all air springs in order to accept the centre gripping location of air spring, and is more simple and convenient to the location of drill bit.

Optionally, the drill positioning ring is further connected with a fixing member, and the fixing member fixedly connects the drill positioning ring to the drilling device.

Through adopting above-mentioned technical scheme, the mounting connects the drill bit holding ring in drilling equipment for the relative drilling equipment's of drill bit holding ring position state is stable, and then makes the position state of air spring stable, and is also more stable to the location of drill bit.

Optionally, the fixing piece includes PMKD, branch and fixed kicking block, PMKD passes through the fix with screw in drilling equipment, fixed kicking block is fixed in the drill bit holding ring.

Through adopting above-mentioned technical scheme, PMKD passes through the fix with screw in drilling equipment, and fixed kicking block is fixed in the drill bit holding ring, is fixed in drilling equipment with the drill bit holding ring from this steadily, and the mode of fix with screw makes PMKD's dismouting simple and convenient, and then makes the holistic dismouting of positioning mechanism simple and convenient.

Optionally, the fixed top block is provided with a slot, and the bottom of the drill positioning ring is inserted into the slot and fixed by a screw.

Through adopting above-mentioned technical scheme, insert in the slot and through the fix with screw drill bit holding ring bottom for the connection of drill bit holding ring and fixed kicking block is simple and convenient and stable, makes positioning mechanism's equipment simple and convenient.

In summary, the present application includes at least one of the following beneficial technical effects:

1. all the air springs clamp and position the drill bit together, the air springs have elastic expansion and contraction quantity, and the drill bit is allowed to generate small displacement under large shaking force in the process of clamping and positioning the drill bit, so that the situation that the drill bit is broken due to rigid clamping force is avoided, and the safety of positioning the drill bit is improved;

2. when the air spring clamps the drill bit, the universal wheel directly props against the drill bit, and in the drilling process of the drill bit, rolling friction force is generated between the universal wheel and the drill bit, so that the drill bit is stable to move.

Drawings

Fig. 1 is a three-dimensional structural view of an embodiment of the present application.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

Description of reference numerals: 1. a drill bit positioning ring; 11. a first half body; 12. a second half body; 13. a first fixing plate; 14. a second fixing plate; 15. a hinged block; 16. hinging and inserting blocks; 17. a jack; 171. a yielding groove; 2. a gas spring; 21. a connecting member; 22. a limiting block; 3. a universal wheel; 4. a fixing member; 41. fixing the bottom plate; 42. a strut; 43. fixing the top block; 431. and (4) a slot.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses drilling positioning mechanism under water, refer to fig. 1, including drill bit holding ring 1 and mounting 4, drill bit holding ring 1 is the ring form, and mounting 4 is including fixed baseplate 41, branch 42 and the fixed kicking block 43 of fixed connection in proper order, and the through-hole has been seted up to fixed baseplate 41, and fixed baseplate 41 passes through fix with screw in drilling equipment in through-hole department. The slot 431 has been seted up to fixed kicking block 43 top surface, and during the slot 431 was inserted to the bottom of drill bit holding ring 1, the through-hole had been seted up at the position that drill bit holding ring 1 inserted in the slot 431, and the through-hole has also been seted up to fixed kicking block 43, and the through-hole of fixed kicking block 43 communicates in slot 431, and the through-hole of fixed kicking block 43 is linked together with drill bit holding ring 1's through-hole, and fixed kicking block 43 passes through screw nut fixed connection with drill bit holding ring 1 in the through-hole department that communicates each other. In order to stabilize the position of the drill positioning ring 1, two fixing members 4 are preferably provided in the present embodiment, and the two fixing members 4 fix the drill positioning ring 1 at the same time.

Referring to fig. 2, a plurality of jacks 17 are formed in the drill positioning ring 1, the plurality of jacks 17 are equidistantly distributed along the circumferential direction of the drill positioning ring 1, a gas spring 2 is respectively inserted into each jack 17, a pressure cylinder of the gas spring 2 is in sliding fit with the jack 17, and a piston rod of the gas spring 2 faces to the center of the drill positioning ring 1. The hole wall of jack 17 has seted up the groove of stepping down 171, and the pressure cylinder of air spring 2 is fixed to be provided with stopper 22, and stopper 22 inserts in the groove of stepping down 171 and with the groove of stepping down 171 sliding fit. The connecting piece 21 is arranged at the end part of the piston rod of the gas spring 2, the connecting piece 21 is cylindrical with one closed end, internal threads are arranged in the connecting piece 21, external threads are arranged at the end part of the piston rod of the gas spring 2, the connecting piece 21 is in threaded connection with the piston rod of the gas spring 2, the closed end of the connecting piece 21 is connected with the universal wheel 3, and the universal wheel 3 is fixed on the connecting piece 21 through screws.

Referring to fig. 1, the drill positioning ring 1 includes a first half body 11 and a second half body 12, the first half body 11 and the second half body 12 are respectively in a semi-circular shape, and the first half body 11 and the second half body 12 are spliced to form the drill positioning ring 1. One end of the first half body 11 is fixedly provided with a hinged block 15, one end of the second half body 12 is fixedly provided with a hinged insertion block 16, the hinged block 15 is provided with a connection groove, and the hinged insertion groove 431 is inserted into the connection groove. The hinge slot 431 is provided with a through hole, the hinge block 15 is also provided with a through hole, the through hole of the hinge block 15 is communicated with the connecting groove, the through hole of the hinge block 15 is communicated with the through hole of the hinge insert block 16, and the hinge block 15 and the hinge insert block 16 are mutually hinged at the through holes communicated with each other through a pin shaft. The first half body 11 is fixedly provided with a first fixing plate 13 at one end far away from the hinge block 15, the second half body 12 is fixedly provided with a second fixing plate 14 at one end far away from the hinge block 16, the first fixing plate 13 and the second fixing plate 14 are mutually attached, the first fixing plate 13 is provided with a through hole, the second fixing plate 14 is also provided with a through hole, the through hole of the first fixing plate 13 is mutually communicated with the through hole of the second fixing plate 14, and the first fixing plate 13 and the second fixing plate 14 are fixedly connected through screws and nuts at the mutually communicated through holes.

The implementation principle of the underwater drilling positioning mechanism in the embodiment of the application is as follows: carry out the centre gripping location to the drill bit jointly through the universal wheel 3 of end through air spring 2, air spring 2 has the flexible volume of elasticity, carries out the in-process of centre gripping location to the drill bit, allows the drill bit to produce less displacement under great shaking force, avoids appearing the drill bit and receives the cracked condition of rigidity clamping-force, improves the security when fixing a position the drill bit.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an underwater drilling positioning mechanism which characterized in that: including drill bit holding ring (1), be provided with a plurality of air springs (2) on drill bit holding ring (1), it is a plurality of air spring (2) are followed drill bit holding ring (1) circumference equidistance distributes, and all air springs (2) carry out the centre gripping location to the drill bit jointly.

2. An underwater borehole positioning mechanism as recited in claim 1, further comprising: and one end of the gas spring (2) close to the center of the drill positioning ring (1) is provided with a universal wheel (3).

3. An underwater borehole positioning mechanism according to claim 2, wherein: the end part that air spring (2) is connected universal wheel (3) is provided with connecting piece (21), connecting piece (21) threaded fixation is in the end part of air spring (2), universal wheel (3) are fixed in through the screw connecting piece (21).

4. An underwater borehole positioning mechanism as recited in claim 1, further comprising: the drill positioning ring (1) comprises a first half body (11) and a second half body (12), wherein a hinged block (15) is arranged on the first half body (11), a hinged insert block (16) is arranged on the second half body (12), the hinged block (15) is hinged to the hinged insert block (16) so that the first half body (11) is rotatably connected with the second half body (12), a first fixing plate (13) is further arranged on the first half body (11), a second fixing plate (14) is further arranged on the second half body (12), and the first fixing plate (13) and the second fixing plate (14) are fixedly connected through screws and nuts so that the first half body (11) is fixed with the second half body (12).

5. An underwater borehole positioning mechanism as recited in claim 1, further comprising: drill bit holding ring (1) is connected jack (17) have been seted up to the position of air spring (2), the pressure cylinder of air spring (2) is inserted and is located in jack (17), the fixed stopper (22) that is provided with on the pressure cylinder of air spring (2), groove of stepping down (171) has still been seted up to the pore wall of jack (17), stopper (22) with groove of stepping down (171) sliding fit.

6. An underwater borehole positioning mechanism as recited in claim 1, further comprising: the drill bit positioning ring (1) is further connected with a fixing piece (4), and the fixing piece (4) is used for fixedly connecting the drill bit positioning ring (1) to a drilling device.

7. An underwater borehole positioning mechanism according to claim 6, wherein: the fixing piece (4) comprises a fixing bottom plate (41), a supporting rod (42) and a fixing top block (43), the fixing bottom plate (41) is fixed on the drilling device through a screw, and the fixing top block (43) is fixed on the drill positioning ring (1).

8. An underwater borehole positioning mechanism according to claim 7, wherein: the fixed top block (43) is provided with a slot (431), and the bottom of the drill positioning ring (1) is inserted into the slot (431) and fixed through a screw.