CN214403460U

CN214403460U - Safety joint device for petroleum drilling

Info

Publication number: CN214403460U
Application number: CN202120307974.XU
Authority: CN
Inventors: 刘海波
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2021-10-15
Anticipated expiration: 2031-02-03

Abstract

The utility model discloses an oil drilling safety joint device, including connecting the body, the side that connects the body runs through there is the pivot, the pivot extends to and connects the body and is fixed with second bevel gear, the inner wall that connects the body is fixed with the fixed plate, the through-hole has been seted up on the fixed plate, install the bearing in the through-hole, the second inner thread cover is installed to the inner circle of bearing. The utility model discloses in connecting this internal back messenger's opening with drill screw rod access, can restrict the lateral shifting of drill screw rod through opening and the rubber circle in it, can prevent effectively that its lateral shifting is too big and cause the drill bit skew, its rubber circle can provide the resistance for the drill screw rod when receiving the lateral force and squinting, can effectively alleviate it and take place too big skew phenomenon when receiving the lateral force, thereby also can prevent that its drill screw rod from causing the oppression damage to the joint inner wall, the protectiveness of its to drill screw rod and joint inner wall has been improved.

Description

Safety joint device for petroleum drilling

Technical Field

The utility model relates to an oil drilling technical field especially relates to an oil drilling safety joint device.

Background

In oil drilling, a drill bit is used to drill an oil well, the drill bit is a device that conveys drilling mud to the drill bit and raises, lowers, or rotates a bottom hole along with the drill bit, and a joint is used to install the drill bit.

However, when the drill bit is used, the drill bit screw often receives a transverse force, the drill bit screw can cause compression damage to the inner wall of the joint, and the drill bit screw is easy to break or deform, so that the service lives of the joint and the drill bit screw are reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a safety joint device for petroleum drilling.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a safety joint device for petroleum drilling comprises a joint body, wherein a rotating shaft penetrates through the side face of the joint body, the rotating shaft extends to the joint body and is fixedly provided with a second bevel gear, the inner wall of the joint body is fixedly provided with a fixing plate, the fixing plate is provided with a through hole, a bearing is installed in the through hole, a second inner thread sleeve is installed on the inner ring of the bearing, the bottom of the second inner thread sleeve is fixedly provided with a first bevel gear, the first bevel gear is meshed with the second bevel gear, a first threaded rod is sleeved in the second inner thread sleeve through threads, a limiting plate is fixed at the top of the first threaded rod and positioned above the fixing plate, an opening is formed in the limiting plate, the inner wall of the opening is provided with a rubber ring, the side face of the joint body is provided with a mounting hole, and a first inner thread sleeve is installed in the mounting hole, the second threaded rod is sleeved in the first internal thread sleeve through threads, the second threaded rod extends to the joint body and is rotatably installed with a sleeve, the second threaded rod is located above the limiting plate, a guide rod is sleeved in the sleeve in a sliding mode, the end portion of the guide rod is fixed with a clamping plate, the outer wall of the sleeve is fixed with a spring, and the end portion of the spring is fixed to the side face of the clamping plate.

Preferably, the side of limiting plate is fixed with the slider, the inner wall that connects the body has seted up the spout, slider slidable mounting is in the spout.

Preferably, the side surface of the joint body is provided with a hole, a shaft sleeve is arranged in the hole, and the rotating shaft is rotatably arranged in the shaft sleeve.

Preferably, a top plate is fixed to the top of the connector body, a powerful magnet is arranged at the bottom of the top plate, and a connecting flange is fixed to the top of the top plate.

Preferably, a connecting block is fixed at the end part of the guide rod and is fixed on the side surface of the clamping plate.

Preferably, the rotating shaft and the end part of the second threaded rod are both provided with a turntable, and a limiting block is fixed at the bottom of the first threaded rod.

Compared with the prior art, the beneficial effects of the utility model are that:

1: in the utility model, the drill screw is inserted into the connector body and then penetrates into the opening, the transverse movement of the drill screw can be limited through the opening and the rubber ring in the opening, the drill offset caused by overlarge transverse offset can be effectively prevented, the rubber ring can provide resistance for the drill screw when the drill screw is offset by transverse force, the overlarge offset phenomenon when the drill screw is offset by transverse force can be effectively relieved, the compression damage of the drill screw to the inner wall of the connector can be prevented, the protection of the drill screw and the inner wall of the connector is improved, the rotating shaft is rotated to rotate the second bevel gear, the second bevel gear drives the first bevel gear to rotate the second inner thread sleeve, the second inner thread sleeve rotates to vertically move the first threaded rod, the first threaded rod drives the limiting plate to vertically move, the height of the limiting plate can be adjusted, and the height of the limiting plate can be automatically adjusted under the actual conditions of the root, the height of the limiting plate is different, the limiting capacity of the limiting plate on the drill bit screw is changed, and the more the limiting plate is supported, the higher the limiting capacity is.

2: the utility model discloses in rotate the second threaded rod and make its lateral shifting, the second threaded rod drives sleeve lateral shifting, and the sleeve uses through the cooperation of guide bar and spring, can make grip block lateral shifting, can carry out the centre gripping to the drill screw rod, can effectively reduce the deformation degree of drill screw rod, uses through the cooperation of roof and powerful magnet, and powerful magnet can provide an adsorption affinity to the drill screw rod, can provide the guide effect when the installation to it.

Drawings

Fig. 1 is a schematic structural view of a safety joint device for oil drilling according to the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a partially enlarged view of a portion B in fig. 1.

In the figure: the joint comprises a joint body 1, a shaft sleeve 2, a rotary table 3, a rotating shaft 4, a fixing plate 5, a top plate 6, a connecting flange 7, a powerful magnet 8, a first internal thread sleeve 9, a rubber ring 10, a limiting plate 11, an opening 12, a sliding block 13, a sliding chute 14, a first bevel gear 15, a second bevel gear 16, a first threaded rod 17, a limiting block 18, a second threaded rod 19, a bearing 20, a second internal thread sleeve 21, a sleeve 22, a spring 23, a clamping plate 24, a connecting block 25 and a guide rod 26.

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.

Referring to fig. 1-3, a safety joint device for petroleum drilling, comprising a joint body 1, a rotating shaft 4 penetrates through the side surface of the joint body 1, the rotating shaft 4 extends to the joint body 1 and is fixed with a second bevel gear 16, a fixing plate 5 is fixed on the inner wall of the joint body 1, a through hole is formed in the fixing plate 5, a bearing 20 is installed in the through hole, a second internal thread sleeve 21 is installed on the inner ring of the bearing 20, a first bevel gear 15 is fixed at the bottom of the second internal thread sleeve 21, the first bevel gear 15 is meshed with the second bevel gear 16, a first threaded rod 17 is sleeved in the second internal thread sleeve 21 through threads, a limiting plate 11 is fixed at the top of the first threaded rod 17, the limiting plate 11 is positioned above the fixing plate 5, an opening 12 is formed in the limiting plate 11, a rubber ring 10 is arranged on the inner wall of the opening 12, a mounting hole is formed in the side surface of the joint body 1, a first internal thread sleeve 9 is installed in the mounting hole, second threaded rod 19 has been cup jointed through the screw in the first internal thread cover 9, and second threaded rod 19 extends to and rotates in the joint body 1 and installs sleeve 22, and second threaded rod 19 is located limiting plate 11's top, and slide in the sleeve 22 and cup joint guide bar 26, the end fixing of guide bar 26 has grip block 24, and the outer wall of sleeve 22 is fixed with spring 23, and the end fixing of spring 23 is in the side of grip block 24.

Limiting plate 11's side is fixed with slider 13, the spout 14 has been seted up to the inner wall that connects body 1, slider 13 slidable mounting is in spout 14, the side that connects body 1 is seted up porosely, downthehole axle sleeve 2 of installing, pivot 4 rotates and installs in axle sleeve 2, the top that connects body 1 is fixed with roof 6, the bottom of roof 6 is provided with powerful magnet 8, the top of roof 6 is fixed with flange 7, the end fixing of guide bar 26 has connecting block 25, the side at grip block 24 is fixed to connecting block 25, the tip of pivot 4 and second threaded rod 19 all is provided with carousel 3, the bottom of first threaded rod 17 is fixed with limiting block 18.

The working principle is as follows: when in use, the joint body 1 is connected with a drill rod through the connecting flange 7, the drill screw is arranged in the joint body 1, the drill screw is inserted into the joint body 1 and then penetrates into the opening 12, the transverse movement of the drill screw can be limited through the opening 12 and the rubber ring 10 in the opening 12, the drill offset caused by the overlarge transverse offset can be effectively prevented, the rubber ring 10 can provide resistance for the drill screw when the drill screw is offset by transverse force, the overlarge offset phenomenon when the drill screw is offset by transverse force can be effectively relieved, the inner wall of the joint can be prevented from being pressed and damaged by the drill screw, the protectiveness of the drill screw and the inner wall of the joint is improved, the rotating shaft 4 is rotated to rotate the second bevel gear 16, the second bevel gear 16 drives the first bevel gear 15 to rotate the second internal thread sleeve 21, the second internal thread sleeve 21 rotates to move the first threaded rod 17 up and down, first threaded rod 17 drives limiting plate 11 and reciprocates, can adjust the height of limiting plate 11, can be rhizosphere actual conditions independently adjust its limiting plate 11's height, its limiting plate 11 height difference, it also changes to the spacing ability of drill screw rod, its limiting plate 11 supports more, spacing ability is higher, it makes its lateral shifting to rotate second threaded rod 19, second threaded rod 19 drives sleeve 22 lateral shifting, sleeve 22 passes through guide bar 26 and spring 23's cooperation and uses, can make grip block 24 lateral shifting, can carry out the centre gripping to the drill screw rod, can effectively reduce the deformation degree of drill screw rod, cooperation through roof 6 and powerful magnet 8 is used, powerful magnet 8 can provide an adsorption affinity to the drill screw rod, can provide the guide effect when it is installed.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The oil drilling safety joint device comprises a joint body (1) and is characterized in that a rotating shaft (4) penetrates through the side face of the joint body (1), the rotating shaft (4) extends to the joint body (1) and is fixedly provided with a second bevel gear (16), a fixing plate (5) is fixed on the inner wall of the joint body (1), a through hole is formed in the fixing plate (5), a bearing (20) is installed in the through hole, a second inner thread sleeve (21) is installed on the inner ring of the bearing (20), a first bevel gear (15) is fixed at the bottom of the second inner thread sleeve (21), the first bevel gear (15) is meshed with the second bevel gear (16), a first threaded rod (17) is sleeved in the second inner thread sleeve (21) through threads, a limiting plate (11) is fixed at the top of the first threaded rod (17), and the limiting plate (11) is located above the fixing plate (5), seted up opening (12) on limiting plate (11), the inner wall of opening (12) is provided with rubber circle (10), the mounting hole has been seted up to the side that connects body (1), install first internal thread cover (9) in the mounting hole, second threaded rod (19) have been cup jointed through the screw thread in first internal thread cover (9), second threaded rod (19) extend to connect in body (1) and rotate and install sleeve (22), second threaded rod (19) are located the top of limiting plate (11), slide in sleeve (22) and have been cup jointed guide bar (26), the end fixing of guide bar (26) has grip block (24), the outer wall of sleeve (22) is fixed with spring (23), the end fixing of spring (23) is in the side of grip block (24).

2. The oil drilling safety joint device according to claim 1, characterized in that a sliding block (13) is fixed on the side surface of the limiting plate (11), a sliding groove (14) is formed in the inner wall of the joint body (1), and the sliding block (13) is slidably mounted in the sliding groove (14).

3. The oil drilling safety joint device according to claim 1, characterized in that the side of the joint body (1) is provided with a hole, a shaft sleeve (2) is arranged in the hole, and the rotating shaft (4) is rotatably arranged in the shaft sleeve (2).

4. The oil drilling safety joint device according to claim 1, characterized in that a top plate (6) is fixed on the top of the joint body (1), a strong magnet (8) is arranged at the bottom of the top plate (6), and a connecting flange (7) is fixed on the top of the top plate (6).

5. An oil drilling safety joint device according to claim 1, characterized in that the end of the guide rod (26) is fixed with a connecting block (25), and the connecting block (25) is fixed on the side of the clamping plate (24).

6. Oil drilling safety joint according to claim 1, characterized in that the ends of the rotating shaft (4) and the second threaded rod (19) are provided with a rotating disc (3), and the bottom of the first threaded rod (17) is fixed with a limiting block (18).