Blowout preventer flashboard sealing rubber core dismounting and positioning device

Abstract

The utility model relates to the technical field of oil field equipment maintenance, in particular to a blowout preventer flashboard sealing rubber core dismounting and positioning device which comprises an operation table, a front-back displacement mechanism is fixed on the operation table, and centering and positioning mechanisms which are in bilateral symmetry and identical in structure are fixed on the operation table on the two sides of the front-back displacement mechanism. An up-down positioning mechanism is arranged at one end, close to the centering positioning mechanism, of the front-back displacement mechanism; the front-back displacement mechanism comprises a second support, a first moving groove is formed in the second support, a lead screw is rotationally arranged in the first moving groove, a moving block is in threaded connection with the lead screw, and a T-shaped block is detachably and fixedly connected to the top of the moving block; the blowout preventer flashboard is positioned on the front-and-back displacement mechanism through the T-shaped block, during disassembly, the up-and-down positioning mechanism clamps the blowout preventer flashboard in the up-and-down direction, the centering positioning mechanism prevents the flashboard and the front-and-back displacement mechanism from generating horizontal angle deviation, it is ensured that force can be accurately applied to a top arc-shaped sealing rubber core in the disassembly process, and the disassembly efficiency is improved. And the overall dismounting effect is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of oilfield equipment maintenance, and in particular to a disassembly and positioning device for the sealing core of a blowout preventer gate. Background Technology

[0002] In industrial sectors such as oil and gas exploration and extraction, blowout preventers (BOPs) are critical equipment for ensuring drilling safety. The BOP gate seal core, as a vital sealing component, undergoes aging and damage during long-term use due to harsh conditions such as high pressure, wear, and corrosion. Frequent replacements are necessary to ensure the overall sealing performance of the BOP. The complex structure of the BOP gate and the unique installation location of the seal core present challenges to disassembly. The sealing core consists of two groups: a top arc-shaped sealing core and a horizontal sealing core. Existing methods for removing the top arc-shaped sealing core, whether manual or mechanical, require applying force from both ends and pulling upwards to separate it from the blowout preventer gate. However, during this process, the blowout preventer gate is prone to lateral swaying and vertical displacement due to the combined forces acting on it. This prevents the gate from remaining stable on the worktable, affecting the precision of the removal effort. It also causes tools to slip or fly off, making disassembly difficult and potentially threatening personnel safety. Furthermore, it can easily cause mechanical damage to the blowout preventer gate, affecting its overall sealing performance. Therefore, it is necessary to provide a blowout preventer gate sealing core removal and positioning device to solve these technical problems. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a disassembly and positioning device for the sealing core of the blowout preventer gate.

[0004] The technical implementation of this utility model is a disassembly and positioning device for the sealing core of the blowout preventer gate, including an operating table, a front and rear displacement mechanism fixed on the operating table, a centering positioning mechanism that is symmetrical and identical in structure on both sides of the operating table of the front and rear displacement mechanism, and an upper and lower positioning mechanism provided at the end of the front and rear displacement mechanism near the centering positioning mechanism.

[0005] The front and rear displacement mechanism includes a second support, a first movable groove on the second support, a lead screw rotatably installed in the first movable groove, a movable block threadedly connected to the lead screw, sliding grooves on both sides of the first movable groove, side plates on both sides of the movable block, and sliding connections between the side plates and the sliding grooves; a T-shaped block is detachably and fixedly connected to the top of the movable block.

[0006] Preferably, the top of the movable block is provided with a mounting groove, and a threaded hole is provided in the mounting groove. The T-block is provided with a threaded hole, and the T-block and the movable block are fixedly connected by screws.

[0007] Preferably, the centering and positioning mechanism includes a support three and a positioning block. The support three is fixedly connected to the operating table. The top of the support three is provided with a movable groove two. The positioning block is slidably connected in the movable groove two. The bottom of the positioning block and the movable groove two are provided with threaded holes three of equal size. The positioning block and the support three are fixedly connected by screws.

[0008] Preferably, the second movable groove is arranged in a row and is a dovetail groove.

[0009] Preferably, the end of the positioning block closest to the front and rear displacement mechanism is configured as an inclined surface.

[0010] Preferably, both ends of the second support are fixedly connected to limit plates, and both ends of the lead screw are rotatably connected to the limit plates at both ends.

[0011] Preferably, a handwheel is fixedly connected to one end of the lead screw.

[0012] Preferably, the upper and lower positioning mechanism includes a support, which is fixedly connected to the operating table. A bracket is fixed to the top of the support, and a cantilever is rotatably provided on the top of the bracket. A threaded hole four is opened at the front end of the cantilever, and a rotating shaft is rotatably connected in the threaded hole four. A handwheel is fixed to the upper end of the rotating shaft, and an abutment head is provided at the lower end of the rotating shaft.

[0013] Preferably, the contact head at the lower end of the rotating shaft is made of a tough material.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] The blowout preventer gate front sealing core disassembly device provided by this utility model uses T-blocks to quickly position the blowout preventer gate on the front and rear displacement mechanism. The size of the T-blocks can be matched according to the specifications of the blowout preventer gate, making the device more flexible in use.

[0016] The upper and lower positioning mechanisms and the centering positioning mechanism provide vertical and horizontal clamping for the blowout preventer gate, locking the blowout preventer gate in multiple dimensions at once. This reduces displacement and deformation of the blowout preventer gate caused by vibration of the disassembly equipment. When removing the sealant, the blowout preventer gate is more stable, the force applied to it is more precise, and the disassembly efficiency is higher. This avoids mechanical damage to the blowout preventer gate caused by inaccurate force application, which would affect the overall sealing performance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the front and rear displacement mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the movable block structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the left-right centering positioning mechanism.

[0021] Figure 5 This is a schematic diagram of the upper and lower positioning mechanism of this utility model.

[0022] The meanings of the reference numerals in the attached diagram are as follows: 1. Operating table; 2. Upper and lower positioning mechanism; 201. Support 1; 202. Bracket; 203. Cantilever; 204. Rotating shaft; 3. Front and rear displacement mechanism; 301. Support 2; 302. Lead screw; 303. Moving block; 3031. Mounting groove; 3032. Threaded hole 1; 3033. Side plate; 304. Limiting plate; 305. Slide groove; 306. T-block; 307. Moving groove 1; 4. Centering and positioning mechanism; 401. Support 3; 402. Positioning block; 403. Moving groove 2. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] The following is in conjunction with the instruction manual. Figures 1 to 5 The present invention provides a detailed description of the implementation of a blowout preventer gate sealing core disassembly and positioning device:

[0025] The blowout preventer gate sealing core disassembly and positioning device includes an operating table 1, a front and rear displacement mechanism 3 fixed on the operating table 1, and a centering positioning mechanism 4 that is symmetrical and identical in structure on both sides of the operating table 1. An upper and lower positioning mechanism 2 is provided at the end of the front and rear displacement mechanism 3 near the centering positioning mechanism 4.

[0026] The front-to-back displacement mechanism 3 includes a second support 301, a first moving groove 307 on the second support 301, a lead screw 302 rotatably mounted in the first moving groove 307, a moving block 303 threadedly connected to the lead screw 302, sliding grooves 305 on both sides of the first moving groove 307, and side plates 3033 on both sides of the moving block 303, which are slidably connected to the sliding grooves 305; a T-shaped block 306 is detachably fixedly connected to the top of the moving block 303, and limit plates 304 are fixedly connected to both ends of the second support 301, and the two ends of the lead screw 302 are rotatably connected to the limit plates 304 at both ends respectively.

[0027] The blowout preventer gate is quickly positioned on the front and rear displacement mechanism 3 using T-block 306. The upper and lower positioning mechanism 2 clamps the blowout preventer gate vertically, and the centering positioning mechanism 4 clamps it horizontally. This locks the blowout preventer gate in multiple dimensions at once, reducing displacement and deformation caused by vibration of the disassembly equipment. When removing the sealant, the blowout preventer gate is more stable, the force applied to it is more precise, and the disassembly efficiency is higher. This avoids mechanical damage to the blowout preventer gate due to inaccurate force application, ensuring that its overall sealing performance is not affected during use.

[0028] See appendix Figure 2 Appendix Figure 3 As shown, the top of the movable block 303 is provided with a mounting groove 3031, and a threaded hole 3032 is provided in the mounting groove 3031. A threaded hole 2 is provided on the T-shaped block 306. The T-shaped block 306 and the movable block 303 are fixedly connected by screws. Different sizes of gates can be selected with corresponding sizes of T-shaped blocks 306. T-shaped blocks 306 of different sizes can be installed together by matching their shapes for convenient use.

[0029] See appendix Figure 4 As shown, the centering and positioning mechanism 4 includes a support 3 401 and a positioning block 402. The support 3 401 is fixedly connected to the operating table 1. The top of the support 3 401 is provided with a moving groove 2 403. The moving groove 2 403 is set as a dovetail groove with the two grooves arranged side by side. The positioning block 402 is slidably connected in the moving groove 2 403. The bottom of the positioning block 402 and the moving groove 2 403 are provided with threaded holes 3 of equal size. The positioning block 402 and the support 3 401 are fixedly connected by screws. The moving groove 2 403 is set as a dovetail groove, which can effectively prevent the gate from moving laterally, has a stronger anti-eccentric load capacity, and can provide accurate guidance for the positioning block 402, so that the positioning block 402 can more effectively clamp the gate left and right. In order to make the contact surface between the positioning block 402 and the gate better fit, the end of the positioning block 402 near the front and rear displacement mechanism 3 is set as an inclined surface.

[0030] See appendix Figure 5 The upper and lower positioning mechanism 2 shown includes a support 201, which is fixedly connected to the operating table 1. A bracket 202 is fixed to the top of the support 201. A cantilever 203 is rotatably mounted on the top of the bracket 202. A threaded hole 4 is opened at the front end of the cantilever 203. A rotating shaft 204 is rotatably connected in the threaded hole 4. A handwheel is fixed to the upper end of the rotating shaft 204. A contact head made of tough material (such as rubber-phenolic-fiber composite sheet, high-friction PP elastomer alloy, or Si-DLC coated rubber) is provided at the lower end of the rotating shaft 204, which increases the friction between it and the gate, and further increases the downward clamping force of the rotating shaft 204 on the gate.

[0031] Both ends of the support 2 301 are detachably fixed to the limit plate 304 by bolts, which can prevent the moving block 303 from moving excessively in the moving groove 1 307, protecting the safety of operators and equipment. The detachable connection method facilitates disassembly and maintenance. The positioning block 402 and the bottom of the moving groove 2 403 are provided with threaded holes of equal size. After the position of the positioning block 402 in the moving groove 2 403 is adjusted, the positioning block 402 is fixed to the support 3 401 by screws.

[0032] The following is in conjunction with the appendix Figure 1 To be continued Figure 5 As shown, the implementation principle of this utility model is described as follows:

[0033] When disassembling the top arc-shaped sealing core, use T-block 306 to position the blowout preventer gate on the moving block 303. Different sized gates can be fitted with corresponding sized T-blocks 306. The moving block 303 is moved back and forth within the moving groove 307 via the lead screw 302. Once the blowout preventer gate is positioned at the front and rear of the operating platform 1, move the positioning blocks 402 on both sides of the front and rear displacement mechanism 2 so that the inclined surfaces of the positioning blocks 402 are aligned with the inclined surfaces on both sides of the blowout preventer gate. Then, fix the positioning blocks 402 to the moving groove 403 with screws. The left and right sides are then aligned. After the position of the positioning mechanism 4 is adjusted, rotate the cantilever 203 so that the rotating shaft 204 is directly facing the blowout preventer gate below. Then, rotate the handwheel to press the contact head at the bottom of the rotating shaft 204 against the top of the blowout preventer gate. Since the blowout preventer gate is subjected to clamping forces in both the vertical and horizontal directions, the blowout preventer gate will not shift vertically or horizontally when the top arc-shaped sealant is removed. This makes the blowout preventer gate more stable on the operating table and the force more even, avoiding mechanical damage to the gate due to excessive local force, which would affect its overall sealing performance during operation.

[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A device for disassembling and positioning the sealing core of a blowout preventer gate, characterized in that, Includes an operating table (1), on which a front-to-back displacement mechanism (3) is fixed, and on the operating tables (1) on both sides of the front-to-back displacement mechanism (3) are centering and positioning mechanisms (4) that are symmetrical and identical in structure. An upper and lower positioning mechanism (2) is provided at one end of the front-to-back displacement mechanism (3) near the centering and positioning mechanism (4). The front and rear displacement mechanism (3) includes a second support (301), a first moving groove (307) is provided on the second support (301), a lead screw (302) is rotatably provided in the first moving groove (307), a moving block (303) is threadedly connected to the lead screw (302), and sliding grooves (305) are provided on both sides of the first moving groove (307). Side plates (3033) are provided on both sides of the moving block (303), and the side plates (3033) are slidably connected to the sliding grooves (305). A T-shaped block (306) is detachably fixedly connected to the top of the moving block (303).

2. The blowout preventer gate sealing core disassembly and positioning device according to claim 1, characterized in that, The top of the movable block (303) is provided with a mounting groove (3031), and a threaded hole (3032) is provided in the mounting groove (3031). The T-block (306) is provided with a threaded hole (2). The T-block (306) and the movable block (303) are fixedly connected by screws.

3. The blowout preventer gate sealing core disassembly and positioning device according to claim 1 or 2, characterized in that, The centering and positioning mechanism (4) includes a support three (401) and a positioning block (402). The support three (401) is fixedly connected to the operating table (1). The top of the support three (401) is provided with a moving groove two (403). The positioning block (402) is slidably connected in the moving groove two (403). The bottom of the positioning block (402) and the moving groove two (403) are both provided with threaded holes three of equal size. The positioning block (402) and the support three (401) are fixedly connected by screws.

4. The blowout preventer gate sealing core disassembly and positioning device according to claim 3, characterized in that, The second movable slot (403) is set as a group of side by side and is a dovetail slot.

5. The blowout preventer gate sealing core disassembly and positioning device according to claim 4, characterized in that, The end of the positioning block (402) near the front and rear displacement mechanism (3) is set as an inclined surface.

6. The blowout preventer gate sealing core disassembly and positioning device according to claim 1 or 5, characterized in that, Both ends of the support (301) are fixedly connected to limit plates (304), and both ends of the lead screw (302) are rotatably connected to the limit plates (304) at both ends respectively.

7. The blowout preventer gate sealing core disassembly and positioning device according to claim 6, characterized in that, A handwheel is fixedly connected to one end of the lead screw (302).

8. The blowout preventer gate sealing core disassembly and positioning device according to claim 1, 2, 4, 5, or 7, characterized in that, The upper and lower positioning mechanism (2) includes a support (201), which is fixedly connected to the operating table (1). A bracket (202) is fixed on the top of the support (201), and a cantilever (203) is rotatably provided on the top of the bracket (202). A threaded hole (4) is provided at the front end of the cantilever (203), and a rotating shaft (204) is rotatably connected in the threaded hole (4). A handwheel is fixed on the upper end of the rotating shaft (204), and an abutment is provided on the lower end of the rotating shaft (204).

9. The blowout preventer gate sealing core disassembly and positioning device according to claim 8, characterized in that, The contact head at the lower end of the rotating shaft (204) is made of a tough material.

Images