CN210798872U

CN210798872U - Stop ring capable of preventing torque rotation

Info

Publication number: CN210798872U
Application number: CN201920895721.1U
Authority: CN
Inventors: 杨波; 张茜
Original assignee: Xiangyang Baiyu Machinery Co ltd
Current assignee: Xiangyang Baiyu Machinery Co ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-06-19
Anticipated expiration: 2029-06-14

Abstract

The utility model relates to the technical field of petroleum drilling auxiliary tools, in particular to a stop ring capable of preventing torque rotation, which comprises a sleeve and a stop ring, the stop ring comprises an inner ring and an outer ring, the inner ring is sleeved on the outer surface of the sleeve, the outer edge of the inner ring is wrapped with the outer ring corresponding to the inner ring in the circumferential direction, a gap is reserved between the outer ring and the inner ring, bolts which are uniformly distributed are arranged on the lower part of the outer surface of the outer ring along the circumferential thread, each bolt penetrates through the outer ring and then is arranged on the lower part of the inner ring in a thread mode, a plurality of inner slots which are uniformly distributed are formed on the outer surface of the inner ring from the top along the circumferential direction, and a plurality of outer slots which are in one-to-one correspondence with the inner slots are formed in the inner surface of the outer ring from the top along the circumferential direction, and wedge blocks matched with the inner slots and the outer slots are clamped between every two corresponding inner slots and outer slots in a matching manner. The utility model has the advantages of can prevent to turn round in order to avoid the gliding of retaining ring.

Description

Stop ring capable of preventing torque rotation

Technical Field

The utility model relates to an oil drilling appurtenance technical field especially relates to a can prevent moment of torsion pivoted check ring.

Background

In the process of oil exploration, a well is drilled firstly, a casing pipe needs to be inserted into the well after the well is drilled, then concrete is poured into a gap between the outer wall of the casing pipe and the inner wall of the well, in order to ensure that the interval between the casing pipe and the inner wall of the well is uniform and the casing pipe does not deflect, the traditional method is to add centralizers on the casing pipe, wherein the centralizers are added at intervals, and a stop ring needs to be arranged in order to prevent the centralizers from sliding on the casing pipe. The stop ring is called a limit ring, a positioner, a stop ring, a brake ring and the like, the stop ring is used for limiting the centralizer or a cement umbrella to slide on an inner casing, and the existing stop ring is not tight in locking mode with the casing, so that the existing stop ring is easy to shake and break away under the torque rotation of the casing, and the centralizer is caused to slide on the casing.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the locking ring is not tightly combined with the sleeve pipe in the prior art, and is easy to rotate by the torque to cause the shaking and the separation, and providing the locking ring which can prevent the rotation of the torque.

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

the design one kind can prevent torque rotation's retaining ring, includes sleeve pipe, retaining ring, the retaining ring includes inner ring and outer loop, the sleeve pipe surface is located to the inner ring cover, the inner ring is provided with the outer loop corresponding with it along circumference parcel outward, leave the space between outer loop and the inner ring, evenly distributed's bolt is installed along circumference screw thread to outer loop surface lower part, every the bolt passes equal screw thread behind the outer loop and installs in the inner ring lower part, all open a plurality of that has evenly distributed along circumference from the top on the inner ring surface in, all open a plurality of outer fluting with a plurality of inner fluting one-to-one from the top on the outer loop internal surface, every two correspond all cooperate the card to be equipped with the voussoir with it between inner fluting and the outer fluting.

Preferably, the wedge is a rubber wedge.

Preferably, a plurality of anti-skid protrusions which are uniformly distributed are fixedly arranged on the inner side surface of the inner ring along the circumferential direction.

Preferably, the bolt is made of rubber.

Preferably, the wedge block is in interference fit with the inner slot and the outer slot.

The utility model provides a can prevent moment of torsion pivoted snap ring, beneficial effect lies in: through setting up the voussoir of card establishing between inner ring and the outer loop, the extrusion force that the inner ring received is bigger more even to make the inseparabler of inner ring and the laminating of sleeve pipe surface, prevent effectively that the moment of torsion from rotating the gliding condition of retaining ring and leading to the retaining ring and appearing.

Drawings

Fig. 1 is a schematic view of an internal structure of a stop ring capable of preventing torque rotation according to the present invention;

fig. 2 is a schematic top view of a stop ring capable of preventing torque rotation according to the present invention;

fig. 3 is a schematic cross-sectional view of an inner ring of a stop ring capable of preventing torque rotation according to the present invention;

fig. 4 is a schematic view of the installation structure of the stop ring and the centralizer for preventing torque rotation provided by the present invention.

In the figure: the anti-skid device comprises a sleeve 1, a stop ring 2, an inner ring 3, an outer ring 4, a bolt 5, an inner slot 6, an outer slot 7, a wedge block 8, a centralizer 9 and an anti-skid protrusion 10.

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 to 4, a snap ring capable of preventing torque rotation, includes a sleeve 1, stop ring 2, stop ring 2 includes inner ring 3 and

outer loop

4, 1 surface of sleeve pipe is located to 3 covers of inner ring, 3 inboard surfaces of inner ring are along the fixed non-slip raised 10 that is equipped with a plurality of evenly distributed of circumference, non-slip raised 10 can strengthen the frictional force between inner ring 3 and the sleeve pipe 1, non-slip inner ring 3 is provided with corresponding outer loop 4 with it along circumference parcel outward, leave the space between outer loop 4 and the inner ring 3, evenly distributed's bolt 5 is installed along circumference screw thread to 4 surface lower parts of outer loop, bolt 5 is the bolt of rubber material, equal screw thread is installed in 3 lower parts of inner ring after every bolt 5 passes outer loop 4, bolt 5 of rubber material has good stretching ability, can also guarantee to connect both degrees of stability under the expansion effect of voussoir between the inner and outer loop.

All open the interior fluting 6 of a plurality of that has evenly distributed along circumference from the top on the 3 surfaces of inner ring, all open a plurality of outer fluting 7 that has with 6 one-to-one of fluting in a plurality of along circumference from the top on the 4 internal surfaces of outer ring, all cooperate the card to be equipped with the voussoir 8 of looks adaptation with it between interior fluting 6 of every two correspondences and the outer fluting 7, voussoir 8 is the rubber voussoir, voussoir 8 is interference fit with interior fluting 6 and outer fluting 7, under the expansion of voussoir 8, inner ring 3 is inseparabler with the laminating of sleeve 1 surface, owing to set up a plurality of evenly distributed voussoir 8 simultaneously, inner ring 3's atress is more even, compare in utilizing screw locking, voussoir 8 is bigger to inner ring 3 and sleeve 1's extrusion force, the locking effect is more.

The utility model discloses when using, the stabilizer both sides of installation are all overlapped and are established and are gone up retaining ring 2 on sleeve pipe 1, then go into interior ring 3 and outer loop 4 with voussoir 8 card between, make interior ring 3 inboard surface can be inseparabler laminating sleeve pipe 1 surface through 8 expansion of voussoir, effectively avoid because the condition that the retaining ring that the moment of torsion rotation leads to rocked takes place.

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 stop ring capable of preventing torque rotation comprises a sleeve (1) and a stop ring (2), and is characterized in that the stop ring (2) comprises an inner ring (3) and an outer ring (4), the outer surface of the sleeve (1) is sleeved with the inner ring (3), the outer ring (4) corresponding to the inner ring (3) is wrapped and arranged outside the inner ring (3) along the circumferential direction, a gap is reserved between the outer ring (4) and the inner ring (3), bolts (5) which are uniformly distributed are installed on the lower portion of the outer surface of the outer ring (4) along circumferential threads, each bolt (5) penetrates through the outer ring (4) and then is installed on the lower portion of the inner ring (3) in a threaded manner, a plurality of inner slots (6) which are uniformly distributed are formed in the outer surface of the inner ring (3) from the top along the circumferential direction, a plurality of outer slots (7) which correspond to the plurality of inner slots (6) one by one are formed in the inner surface of the outer ring (4) from the, wedge blocks (8) matched with the inner open grooves (6) and the outer open grooves (7) are clamped between every two corresponding inner open grooves and outer open grooves in a matching manner.

2. A stop ring against torque rotation according to claim 1, characterized in that the wedges (8) are rubber wedges.

3. A stop ring against torque rotation according to claim 1, characterized in that the inner surface of the inner ring (3) is fixed with several evenly distributed anti-slip protrusions (10) along the circumference.

4. A stop ring against torque rotation according to claim 1, characterized in that the bolts (5) are rubber bolts.

5. A stop ring against torque rotation according to claim 1, characterized in that the wedges (8) have an interference fit with both the inner slot (6) and the outer slot (7).