CN218862578U

CN218862578U - Coiled tubing preventer ram

Info

Publication number: CN218862578U
Application number: CN202223297567.9U
Authority: CN
Inventors: 曹银萍; 康钊飞; 孙祥鑫; 陈泽田; 王璐瑶; 阚羽扬
Original assignee: Xian Shiyou University
Current assignee: Xian Shiyou University
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-04-14
Anticipated expiration: 2032-12-08

Abstract

The utility model discloses a coiled tubing preventer flashboard, including the flashboard, the flashboard comprises plate body, mounting bracket and shearing blade, the front side at the plate body is fixed to the mounting bracket, the mode that shearing blade passes through the bolt installation is fixed in the upper end of mounting bracket, still including setting up the direction subassembly that is used for the direction in the installation and setting up the promotion subassembly that is used for assisting shearing blade to disassemble the separation between mounting bracket and shearing blade. The utility model discloses a coiled tubing preventer flashboard when shearing blade and mounting bracket are disassembled, through the spring action of promoting on the subassembly to the push rod, makes the upper end of push rod promote the separation to shearing blade, more convenient when shearing blade and mounting bracket are disassembled on making the shearing flashboard, the operation of the shearing flashboard of being convenient for is used.

Description

Coiled tubing preventer ram

Technical Field

The utility model belongs to the technical field of the coiled tubing preventer, specifically speaking relates to a coiled tubing preventer flashboard.

Background

The shear ram is one of rams on a coiled tubing blowout preventer, moves towards a drill pipe at the center of the blowout preventer under the thrust provided by a hydraulic system, and approaches and contacts the drill pipe in a first stage; in the second stage, the cutting edge of the flashboard extrudes the drill rod to enable the drill rod to yield, obvious necking phenomenon occurs in the cutting edge contact area, and the wedge-shaped blade tip cone enters the drill rod; and in the third stage, the drill rod is broken and damaged, and the wedge-shaped blade tip enters the annular area of the drill rod to finally complete the shearing of the drill rod.

For the utilization ratio that improves the shear ram plate body, can be with the removable connection of disassembling of mode of making threaded connection between shear ram plate body and the shearing blade, installation and the change through shearing blade, the reuse of the plate body of being convenient for, and shearing blade installs the back of accomplishing in the mount frame of plate body, because the inside oil pressure environment of preventer and shearing blade long time's installation are fixed on the plate body, cause the bolt to disassemble the back, shearing blade still adheres on the plate body, and the inside space of preventer is less, it strikes the separation with shearing blade with the help of assisting the utensil to be difficult to, be not convenient for shear the use of ram.

In view of this, the present invention is provided.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model adopts the following basic concept:

the utility model provides a coiled tubing preventer ram, includes the ram, and the ram comprises plate body, mounting bracket and shear blade, the front side at the plate body is fixed to the mounting bracket, shear blade passes through the mode of bolt installation and fixes the upper end at the mounting bracket, still including setting up the direction subassembly that is used for the direction in the installation between mounting bracket and shear blade and set up the promotion subassembly that is used for supplementary shear blade to disassemble the separation on the mounting bracket.

The push assembly comprises a first mounting groove and a second mounting groove which are arranged at the upper end and the lower end of the mounting frame, a push rod is connected to the first mounting groove and the second mounting groove in a sliding mode, one end of the push rod is located outside the first mounting groove, and an extrusion assembly used for extrusion after the push rod is stressed is arranged on the second mounting groove.

The extrusion subassembly is including setting up the annular slab inside the second mounting groove, the annular slab cover is established in the outside of push rod and is passed through slip subassembly sliding connection, the cover is equipped with the spring on the lateral wall of push rod, the both ends of spring are connected with the inner wall of annular slab and second mounting groove respectively, be provided with the adjusting part that is used for annular slab position adjustment on the push rod.

The sliding assembly comprises a plurality of sliding grooves formed in the side wall of the push rod, each sliding block is connected to each sliding groove in a sliding mode and fixed to the inner wall of the annular plate.

The adjusting piece is a driving ring, the driving ring is in threaded connection with the side wall of the push rod, and the driving ring is located at the lower end of the annular plate and is in rotating connection with the annular plate.

The guide assembly comprises a plurality of positioning pins and positioning holes which are arranged on one side of the shearing blade and the mounting rack which are opposite to each other.

Compared with the prior art, the utility model following beneficial effect has:

the utility model discloses a coiled tubing preventer flashboard when shearing blade and mounting bracket are disassembled, through the spring action of promoting on the subassembly to the push rod, makes the upper end of push rod promote the separation to shearing blade, more convenient when shearing blade and mounting bracket are disassembled on making the shearing flashboard, the operation of the shearing flashboard of being convenient for is used.

The following describes embodiments of the present invention in further detail with reference to the attached drawings.

Drawings

In the drawings:

FIG. 1 is a schematic view of the overall appearance structure of the present invention;

fig. 2 is a schematic structural view of the guide assembly of the present invention;

FIG. 3 is a schematic view of the pushing assembly and the extruding assembly of the present invention;

fig. 4 is an enlarged view of a portion a in fig. 3.

In the figure: 101-a plate body; 102-a mounting frame; 103-a shearing blade; 201-a positioning pin; 202-positioning holes; 301-a first mounting groove; 302-a push rod; 303-a second mounting groove; 401-annular plate; 402-a spring; 501-a chute; 502-a slider; 6-driving ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention.

As shown in fig. 1 to 4, a ram for a coiled tubing blowout preventer comprises a ram, wherein the ram comprises a plate body 101, a mounting frame 102 and a shear blade 103, the mounting frame 102 is fixed at the front side of the plate body 101, the shear blade 103 is fixed at the upper end of the mounting frame 102 in a bolt mounting manner, and the ram further comprises a guide assembly arranged between the mounting frame 102 and the shear blade 103 and used for guiding in the mounting process and a pushing assembly arranged on the mounting frame 102 and used for assisting the disassembly and separation of the shear blade 103.

The pushing assembly comprises a first mounting groove 301 and a second mounting groove 303 which are arranged at the upper end and the lower end of the mounting frame 102, a push rod 302 is connected to the first mounting groove 301 and the second mounting groove 303 in a sliding manner, one end of the push rod 302 is positioned outside the first mounting groove 301, and an extrusion assembly for extruding the push rod 302 after being stressed is arranged on the second mounting groove 303; the extrusion assembly comprises an annular plate 401 arranged in the second mounting groove 303, the annular plate 401 is sleeved outside the push rod 302 and is connected with the push rod 302 in a sliding mode through a sliding assembly, a spring 402 is sleeved on the side wall of the push rod 302, two ends of the spring 402 are connected with the annular plate 401 and the inner wall of the second mounting groove 303 respectively, and an adjusting piece for adjusting the position of the annular plate 401 is arranged on the push rod 302;

here, it should be noted that: in the process that the shearing blade 103 moves towards the mounting frame 102 for mounting, the shearing blade 103 abuts against the upper end of the push rod 302 to push the push rod 302 to move towards the inside of the first mounting groove 301, in the process that the push rod 302 moves, the drive ring 6 drives the annular plate 401 to synchronously move, the pull spring 402 is stressed and deformed to generate elastic force through the movement of the annular plate 401, and the upper end of the push rod 302 pushes the shearing blade 103 to be separated through the elastic force of the spring 402 on the push rod 302.

The sliding assembly comprises a plurality of sliding grooves 501 formed in the side wall of the push rod 302, each sliding groove 501 is connected with a sliding block 502 in a sliding mode, and each sliding block 502 is fixed with the inner wall of the annular plate 401;

here, it should be noted that: the movement of the ring plate 401 is guided by the respective sliders 502 and the slide grooves 501.

The adjusting piece is a driving ring 6, the driving ring 6 is screwed on the side wall of the push rod 302, the driving ring 6 is positioned at the lower end of the annular plate 401 and is rotationally connected with the annular plate 401;

here, it should be noted that: the annular plate 401 is driven to move towards the outer side of the second mounting groove 303 through the driving ring 6, and the deformation of the spring 402 is increased through the movement of the annular plate 401, so that the shearing blade 103 and the mounting frame 102 can be more conveniently pushed to be separated and detached.

The guide assembly comprises a plurality of positioning pins 201 and positioning holes 202 which are arranged on one side opposite to the shearing blade 103 and the mounting frame 102;

here, it should be noted that: in the process of installing the shearing blade 103 on the installation frame 102, the shearing blade 103 is more accurately installed and fixed on the plate body 101 through the auxiliary positioning function of each positioning pin 201 and each positioning hole 202.

When the shear gate plate is used, the shear blade 103 is installed on the installation frame 102 in a bolt installation and fixing mode, so that the installation and replacement of the shear blade 103 are facilitated, and the plate body 101 is conveniently recycled;

in the process of mounting the shearing blade 103 on the mounting frame 102, the shearing blade 103 is more accurately mounted and fixed on the plate body 101 through the auxiliary positioning effect of each positioning pin 201 and each positioning hole 202, in the process of mounting the shearing blade 103 by moving towards the mounting frame 102, the shearing blade 103 abuts against the upper end of the push rod 302 to push the push rod 302 to move towards the inside of the first mounting groove 301, in the process of moving the push rod 302, the annular plate 401 is driven to synchronously move by the driving ring 6, the spring 402 is pulled to deform under stress through the movement of the annular plate 401 to generate elastic force, when the shearing blade 103 is disassembled from the mounting frame 102, the upper end of the push rod 302 pushes and separates the shearing blade 103 through the elastic force effect of the spring 402 on the push rod 302, so that the shearing blade 103 on the shearing gate plate is more convenient to disassemble from the mounting frame 102, and the operation and use of the shearing gate plate are facilitated;

and when the elastic force of the spring 402 to the push rod 302 assists the shear blade 103 to separate and disassemble from the mounting frame 102, the driving ring 6 can be rotated on the push rod 302 close to the outside of the second mounting groove 303, the annular plate 401 is driven to move close to the outside of the second mounting groove 303 through the screw transmission action between the driving ring 6 and the push rod 302 and the connection action between the driving ring 6 and the annular plate 401, and the deformation of the spring 402 is increased through the movement of the annular plate 401, so that the shear blade 103 and the mounting frame 102 can be more conveniently separated and disassembled.

Claims

1. A coiled tubing blowout preventer ram comprising:

the gate plate comprises a plate body (101), a mounting frame (102) and a shearing blade (103), wherein the mounting frame (102) is fixed on the front side of the plate body (101), and the shearing blade (103) is fixed at the upper end of the mounting frame (102) in a bolt mounting mode;

it is characterized by also comprising:

a guide assembly arranged between the mounting frame (102) and the shearing blade (103) and used for guiding in the mounting process;

a pushing component arranged on the mounting rack (102) for assisting the disassembly and separation of the shearing blade (103).

2. The coiled tubing blowout preventer ram according to claim 1, wherein the pushing assembly comprises a first mounting groove (301) and a second mounting groove (303) which are formed at the upper end and the lower end of the mounting frame (102), a push rod (302) is slidably connected to the first mounting groove (301) and the second mounting groove (303), one end of the push rod (302) is located outside the first mounting groove (301), and an extrusion assembly for extruding the push rod (302) after being stressed is arranged on the second mounting groove (303).

3. The coiled tubing blowout preventer ram according to claim 2, wherein the extrusion assembly comprises an annular plate (401) arranged inside the second installation groove (303), the annular plate (401) is sleeved outside the push rod (302) and is connected with the push rod in a sliding mode through a sliding assembly, a spring (402) is sleeved on the side wall of the push rod (302), two ends of the spring (402) are respectively connected with the annular plate (401) and the inner wall of the second installation groove (303), and an adjusting piece for adjusting the position of the annular plate (401) is arranged on the push rod (302).

4. The coiled tubing blowout preventer ram according to claim 3, wherein the sliding assembly comprises a plurality of sliding grooves (501) formed in a side wall of the ram (302), each sliding groove (501) having a sliding block (502) slidably connected thereto, each sliding block (502) being fixed to an inner wall of the annular plate (401).

5. The coiled tubing blowout preventer ram according to claim 4, wherein the adjustment member is a drive ring (6), the drive ring (6) being threaded onto a sidewall of the thrust rod (302), the drive ring (6) being located at a lower end of the annular plate (401) and being rotatably connected to the annular plate (401).

6. The coiled tubing ram of claim 1, wherein the guide assembly comprises a plurality of dowel pins (201) and dowel holes (202) disposed on opposite sides of the shear blade (103) and the mounting bracket (102).