A fracturing pump valve body dismounting tool

Abstract

The utility model relates to a valve body technical field discloses a fracturing pump valve body dismounting tool, including connecting rod, the bottom end of connecting rod is close to the edge place and is connected with the rotating disc of sliding, the inner wall of rotating disc is equipped with a plurality of slide grooves, the inner wall of slide groove is connected with first sliding block of sliding, the top of first sliding block is fixedly connected with the threaded rod, the inner wall of threaded rod is connected with the nut of screw thread, the edge place of threaded rod is connected with the connecting block of screw thread, the side of far away of a plurality of connecting blocks all is fixedly connected with a plurality of connecting plates, the bottom of connecting plate is fixedly connected with the clamping block, in the utility model, by counterclockwise rotation rotating grip, drive first sliding block sliding, make it to adjacent direction mobile close, make the clamping block centripetal clamping, press the connecting rod, use the positioning rod to be inserted into the inner wall of positioning frame, hold up the clamping structure stably, reached the purpose of dismounting different size valve body.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a tool for disassembling the valve of a fracturing pump. Background Technology

[0002] Fracturing pumps are core equipment used in hydraulic fracturing operations in oil, natural gas, and shale gas extraction. They are characterized by high pressure and large displacement. Their main function is to inject high-pressure fluid into underground rock formations, causing the rock formations to fracture and thus improving the fluidity and extraction efficiency of oil and gas. The valve is the core component of the valve assembly in the hydraulic end of the fracturing pump. It is part of the check valve and its main function is to control the unidirectional flow of the fluid, ensuring that the fracturing pump can efficiently and stably complete the fluid intake and discharge process.

[0003] When a pressure pump finishes working, experiences a malfunction, or suffers performance degradation, it is usually necessary to disassemble and repair the pump's valve body. This work requires the use of special pressure pump valve body disassembly tools. Existing pressure pump valve body disassembly tools mostly adopt a rigidly connected jaw puller structure. This structure enhances the stability of the tool during disassembly, but due to its inherent structural limitations, it is not flexible enough when disassembling valve bodies of different sizes, resulting in reduced working efficiency of the pressure pump valve body disassembly tools and increased valve body replacement and maintenance costs. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a fracturing pump valve disassembly tool, which aims to improve the problem that the disassembly size cannot be adjusted in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a fracturing pump valve disassembly tool, comprising a connecting rod, a rotating disk slidably connected to the bottom end of the connecting rod near its edge, a plurality of grooves being formed on the inner wall of the rotating disk, a first slider slidably connected to the inner wall of the grooves, a threaded rod fixedly connected to the top of the first slider, a nut threadedly connected to the inner wall of the threaded rod, a connecting block threadedly connected to the threaded rod near its edge, a plurality of connecting plates fixedly connected to the opposite sides of the plurality of connecting blocks, a clamping block fixedly connected to the bottom of the connecting plates, a plurality of springs fixedly connected to the opposite sides of the plurality of connecting plates, a housing fixedly connected to the opposite sides of the plurality of springs, and a swinging structure rotating near the edge of the top end of the connecting rod, the swinging structure being used to swing the valve.

[0006] As a further description of the above technical solution:

[0007] The swing structure includes a support, the inner wall of which is rotatably connected to the top edge of a connecting rod. A rotating rod is fixedly connected to the left side of the inner wall of the support, and a rotating ring is fixedly connected to the bottom of the support. A half-circle gear is rotatably connected to the top of the rotating rod, and a rotating gear is meshed with the inner wall of the half-circle gear. A limiting groove is formed at the top of the half-circle gear, and a second slider is slidably connected to the inner wall of the limiting groove. A first transmission rod is fixedly connected to the outer wall of the second slider, and a rotating shaft is rotatably connected to the inner wall of the first transmission rod. A second transmission rod is rotatably connected to the outer wall of the rotating shaft. A motor is fixedly connected to the inner wall of the support near the edge, and the output end of the motor is fixedly connected to the bottom of the second transmission rod. A slot is formed on the outer wall of the outer shell.

[0008] As a further description of the above technical solution:

[0009] A positioning frame is fixedly connected to the inner wall of the outer shell, and a positioning rod is fixedly connected to the middle of the outer wall of the connecting rod.

[0010] As a further description of the above technical solution:

[0011] An annular groove is provided on one side of each of the multiple clamping blocks, and a baffle is fixedly connected to one side of each of the multiple connecting plates.

[0012] As a further description of the above technical solution:

[0013] A rotating grip is fixedly connected to the top of the connecting rod, and multiple rubber sleeves are fixedly connected to the outer wall of the rotating grip.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the support is fixedly connected with multiple fixed handles, and the top of the support is fixedly connected with a controller.

[0016] As a further description of the above technical solution:

[0017] A pointer is fixedly connected to the top of the connecting rod near the edge, and a dial is rotatably connected to the bottom of the pointer.

[0018] As a further description of the above technical solution:

[0019] The bottom of the first transmission rod is rotatably connected to the top of the second transmission rod, and the inner wall of the rotating ring is slidably connected to the inner wall of the slot.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, by rotating the handle counterclockwise, the rotating disk is driven to rotate. The rotation of the rotating disk will cause multiple first sliders to slide in the slide groove and move closer to each other in adjacent directions, so that multiple clamping block structures clamp the valve in a centripetal manner. When the size of the valve is different, the distance of the clamping block centripetal contraction is changed accordingly. Then, the connecting rod is pressed down, and the positioning rod is used to lock into the inner wall of the positioning frame to stabilize the clamping structure, thus achieving the purpose of disassembling valves of different sizes.

[0022] 2. In this utility model, the controller controls the motor to start, which drives the second transmission rod to rotate. The second transmission rod and the first transmission rod drive the half-circle gear to swing. Because the half-circle gear meshes with the rotating gear on the connecting rod, it drives the connecting rod to rotate back and forth, so that the clamping structure drives the valve to rotate back and forth, thereby achieving the purpose of breaking the solidification of the oily substance on its outer surface and pulling out the valve. Attached Figure Description

[0023] Figure 1 This is a front perspective view of a fracturing pump valve disassembly tool proposed in this utility model;

[0024] Figure 2 This is a partial structural diagram of the connecting plate of a fracturing pump valve disassembly tool proposed in this utility model;

[0025] Figure 3 This is a partial structural diagram of the clamping block of a fracturing pump valve disassembly tool proposed in this utility model;

[0026] Figure 4 This is a partial structural diagram of the rotating disk of a fracturing pump valve disassembly tool proposed in this utility model;

[0027] Figure 5 This is a partial structural diagram of a half-ring gear in a fracturing pump valve disassembly tool proposed in this utility model.

[0028] Figure 6 This is a partial structural diagram of the connecting rod of a fracturing pump valve disassembly tool proposed in this utility model;

[0029] Figure 7 This is a partial structural diagram of the support for a fracturing pump valve disassembly tool proposed in this utility model.

[0030] Legend:

[0031] 1. Connecting rod; 2. Swinging structure; 201. Support; 202. Rotating ring; 203. Rotating gear; 204. Half-circle gear; 205. Limiting groove; 206. Second slider; 207. Rotating rod; 208. First transmission rod; 209. Rotating shaft; 210. Second transmission rod; 211. Motor; 212. Slot; 3. Rotating disk; 4. Slide groove; 5. First slider; 6. Threaded rod; 7. Nut; 8. Connecting block; 9. Clamping block; 10. Connecting plate; 11. Positioning rod; 12. Positioning frame; 13. Outer shell; 14. Spring; 15. Annular groove; 16. Baffle; 17. Rotating grip; 18. Rubber sleeve; 19. Controller; 20. Pointer; 21. Dial; 22. Fixed grip. Detailed Implementation

[0032] 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.

[0033] Please see the appendix Figure 3 Appendix Figure 4 and attached Figure 6 An embodiment of this utility model provides a fracturing pump valve disassembly tool, including a connecting rod 1. A rotating disk 3 is slidably connected to the bottom end of the connecting rod 1 near the edge. Multiple sliding grooves 4 are provided on the inner wall of the rotating disk 3. A first slider 5 is slidably connected to the inner wall of the sliding grooves 4. A threaded rod 6 is fixedly connected to the top of the first slider 5. A nut 7 is threadedly connected to the inner wall of the threaded rod 6. A connecting block 8 is threadedly connected to the edge of the threaded rod 6. Multiple connecting plates 10 are fixedly connected to the opposite sides of the multiple connecting blocks 8. A clamping block 9 is fixedly connected to the bottom of the connecting plate 10. Multiple springs 14 are fixedly connected to the opposite sides of the multiple connecting plates 10. A housing 13 is fixedly connected to the opposite sides of the multiple springs 14. A swinging structure 2 is rotatably connected to the top end of the connecting rod 1 near the edge. The swinging structure 2 is used to swing the valve. A positioning frame 12 is fixedly connected to the inner wall of the housing 13. A positioning rod 11 is fixedly connected to the middle of the outer wall of the connecting rod 1.

[0034] Specifically, the bottom end of the connecting rod 1 near the edge forms a sliding connection structure with the circular rotating disk 3. Multiple arc-shaped grooves 4 are evenly distributed on the inner wall of the rotating disk 3. The groove walls of these grooves 4 form a sliding connection structure with the first slider 5. The top of the first slider 5 is fixed to the threaded rod 6. The design of the threaded rod 6 strengthens the entire structure. Multiple connecting blocks 8 are radially distributed, and multiple connecting plates 10 are fixedly connected to their outer end faces. Multiple springs 14 are evenly distributed on the outer side of the connecting plates 10. The other end of the springs 14 is firmly connected to the inner wall of the tool's outer shell 13. The design of the springs 14 can assist the connecting plates 10 in driving the clamping blocks 9 to move towards the center, thus stabilizing the structure.

[0035] Please see the appendix Figure 2 Appendix Figure 5 and attached Figure 7 The swing structure 2 includes a support 201. The inner wall of the support 201 is rotatably connected to the top edge of the connecting rod 1. A rotating ring 202 is fixedly connected to the bottom of the support 201. A rotating rod 207 is fixedly connected to the left side of the inner wall of the support 201. A half-circle gear 204 is rotatably connected to the top of the rotating rod 207. A rotating gear 203 is meshed with the inner wall of the half-circle gear 204. A limiting groove 205 is opened at the top of the half-circle gear 204. A second slider 206 is slidably connected to the inner wall of the limiting groove 205. A first transmission rod 208 is fixedly connected to the outer wall of the second slider 206. A rotating shaft 209 is rotatably connected to the inner wall of the first transmission rod 208. A second transmission rod 210 is rotatably connected to the outer wall of the rotating shaft 209. A motor 211 is fixedly connected to the inner wall of the support 201 near the edge. The output end of the motor 211 is fixedly connected to the bottom of the second transmission rod 210. A slot 212 is opened on the outer wall of the outer shell 13.

[0036] Specifically, the purpose of the swing structure 2 is to swing the valve so that it can be pulled out. The support 201 can support and protect the inner wall of its internal structure. The inner tooth surface of the half-circle gear 204 meshes with the rotating gear 203 to ensure the smoothness of the transmission process. On the top plane of the half-circle gear 204, a limiting groove 205 is opened along the circumferential direction. The limiting groove 205 forms a sliding connection with the second slider 206. A motor 211 is fixedly installed on the inner wall of the support 201 near the bottom edge by a mounting seat. The output shaft of the motor 211 forms a rotatable connection with the bottom of the second transmission rod 210.

[0037] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3Annular grooves 15 are provided on adjacent sides of multiple clamping blocks 9, and baffles 16 are fixedly connected to adjacent sides of multiple connecting plates 10. A rotating handle 17 is fixedly connected to the top of the connecting rod 1, and multiple rubber sleeves 18 are fixedly connected to the outer wall of the rotating handle 17. Multiple fixed handles 22 are fixedly connected to the outer wall of the support 201, and a controller 19 is fixedly connected to the top of the support 201.

[0038] Specifically, annular grooves 15 are machined on both adjacent sides of the clamping block 9. The annular grooves 15 can increase the friction of the clamping block 9, making the clamping more stable. They can also allow residual liquid on the valve to flow out through the grooves of the annular grooves 15. The baffle 16 is designed to protect the internal structure of the disassembly tool when disassembling the valve. Rotating the handle 17 allows the operator to easily rotate the connecting rod 1 to perform the disassembly operation.

[0039] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 7 A pointer 20 is fixedly connected to the top of the connecting rod 1 near the edge, and a scale 21 is rotatably connected to the bottom of the pointer 20. The bottom of the first transmission rod 208 is rotatably connected to the top of the second transmission rod 210, and the inner wall of the rotating ring 202 is slidably connected to the inner wall of the slot 212.

[0040] Specifically, the use of pointer 20 and dial 21 allows the operator to observe the rotation angle of connecting rod 1, thereby obtaining the distance the clamp 9 moves centripetally. The bottom end of the first transmission rod 208 and the top end of the second transmission rod 210 are rotatably connected, realizing the transmission of rotation. The inner wall of the rotating ring 202 is slidably connected to the slot 212, which assists the movement of the swing structure 2 and enhances the overall stability.

[0041] Working principle: When the valve body needs to be disassembled, rotate the rotating handle 17 counterclockwise. Due to the fixed connection between the rotating handle 17 and the connecting rod 1, the connecting rod 1 will also rotate counterclockwise. The rotation of the connecting rod 1 will drive the rotation of the rotating disk 3. Due to the connection relationship between the structural groove 4, the first slider 5, the threaded rod 6, the nut 7 and the connecting block 8, the rotation of the rotating disk 3 will drive multiple first sliders 5 to slide in the groove 4, and cause multiple first sliders 5 to move closer to each other in adjacent directions, so that the connecting block 8 moves in the same direction at the same time. Due to the fixed relationship between the connecting block 8, the connecting plate 10 and the clamping block 9, Multiple clamping blocks 9 are arranged in a centripetal clamping structure to hold the valve. When the size of the valve is different, the centripetal contraction distance of the clamping blocks 9 is also different. After clamping, the connecting rod 1 is pressed down, and the positioning rod 11 is inserted into the inner wall of the positioning frame 12 to stabilize the clamping structure. The annular groove 15 opened on the clamping block 9 can increase the friction of the clamping block 9, making the clamping more stable. It can also allow the liquid remaining on the valve to flow out through the groove of the annular groove 15. The structure of the outer shell 13 and the spring 14 can protect its internal structure. The rotation angle can be directly observed through the pointer 20 and the scale 21.

[0042] When the structure is fixed by the positioning rod 11 snapping into the inner wall of the positioning frame 12, the valve body usually has an oily substance solidified, making it difficult to disassemble. At this time, the controller 19 controls the motor 211 to start, driving the second transmission rod 210 to rotate. Since the second transmission rod 210 and the first transmission rod 208 are rotatably connected by the rotating shaft 209, the rotation of the second transmission rod 210 will cause the end of the first transmission rod 208 near the second transmission rod 210 to rotate. Since the other end of the first transmission rod 208 is half a turn The gear 204 is slidably connected to the limiting groove 205, causing the half-circle gear 204 to reciprocate. Because the half-circle gear 204 meshes with the rotating gear 203 on the connecting rod 1, it drives the connecting rod 1 to reciprocate, causing the clamping structure to drive the valve to rotate back and forth, thereby breaking the solidification of the oily substance on its outer surface, so that the valve can be pulled out. The design of the support 201 can protect the structure of the inner wall of the device. The rotating ring 202 slides on the inner wall of the slot 212, which can cooperate with the reciprocating rotation of the connecting rod 1 and avoid structural instability.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fracturing pump valve disassembly tool, comprising a connecting rod (1), characterized in that: A rotating disk (3) is slidably connected to the outer wall of the connecting rod (1) near the edge. The inner wall of the rotating disk (3) is provided with multiple sliding grooves (4). A first slider (5) is slidably connected to the inner wall of the sliding grooves (4). A threaded rod (6) is fixedly connected to the top of the first slider (5). A nut (7) is threadedly connected to the inner wall of the threaded rod (6). A connecting block (8) is threadedly connected to the edge of the threaded rod (6). Multiple connecting plates (10) are fixedly connected to the opposite sides of the multiple connecting blocks (8). A clamping block (9) is fixedly connected to the bottom of the connecting plate (10). Multiple springs (14) are fixedly connected to the opposite sides of the multiple connecting plates (10). A shell (13) is fixedly connected to the opposite sides of the multiple springs (14). A swinging structure (2) is rotatably connected to the upper part of the outer wall of the connecting rod (1). The swinging structure (2) is used to swing the valve.

2. The fracturing pump valve disassembly tool according to claim 1, characterized in that: The swing structure (2) includes a support (201), the inner wall of which is rotatably connected to the upper part of the outer wall of the connecting rod (1), a rotating ring (202) is fixedly connected to the bottom of the support (201), a rotating rod (207) is fixedly connected to the left side of the inner wall of the support (201), a half-circle gear (204) is rotatably connected to the top of the rotating rod (207), a rotating gear (203) is meshed with the inner wall of the half-circle gear (204), and a limiting groove (205) is formed on the top of the half-circle gear (204). The inner wall of the support (205) is slidably connected to a second slider (206), the outer wall of the second slider (206) is fixedly connected to a first transmission rod (208), the inner wall of the first transmission rod (208) is rotatably connected to a rotating shaft (209), the outer wall of the rotating shaft (209) is rotatably connected to a second transmission rod (210), the inner wall of the support (201) is fixedly connected to a motor (211) near the edge, the output end of the motor (211) is fixedly connected to the bottom of the second transmission rod (210), and the outer wall of the outer shell (13) is provided with a slot (212).

3. The fracturing pump valve disassembly tool according to claim 1, characterized in that: The inner wall of the outer shell (13) is fixedly connected to a positioning frame (12), and the middle part of the outer wall of the connecting rod (1) is fixedly connected to a positioning rod (11).

4. The fracturing pump valve disassembly tool according to claim 1, characterized in that: An annular groove (15) is provided on each adjacent side of the plurality of clamping blocks (9), and a baffle (16) is fixedly connected to each adjacent side of the plurality of connecting plates (10).

5. A fracturing pump valve disassembly tool according to claim 1, characterized in that: The top end of the connecting rod (1) is fixedly connected to a rotating grip (17), and the outer wall of the rotating grip (17) is fixedly connected to a plurality of rubber sleeves (18).

6. A fracturing pump valve disassembly tool according to claim 2, characterized in that: The outer wall of the support (201) is fixedly connected with a plurality of fixed handles (22), and the top of the support (201) is fixedly connected with a controller (19).

7. A fracturing pump valve disassembly tool according to claim 1, characterized in that: A pointer (20) is fixedly connected to the top of the connecting rod (1) near the edge, and a dial (21) is rotatably connected to the bottom of the pointer (20).

8. A fracturing pump valve disassembly tool according to claim 2, characterized in that: The bottom of the first transmission rod (208) is rotatably connected to the top of the second transmission rod (210), and the inner wall of the rotating ring (202) is slidably connected to the inner wall of the slot (212).

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