Dismounting device for wear-resistant disc of drilling pump

Abstract

The utility model discloses a dismounting device for a wear-resistant disc of a drilling pump, which relates to the technical field of petroleum drilling and comprises a jacking mechanism, a pulling mechanism and an impacting mechanism which respectively have a jacking function, a pulling function and an impacting function. An ejector rod of the ejection mechanism rotates, the rotation of the ejector rod is converted into linear motion of a wear-resistant disc, and the wear-resistant disc is driven to be ejected outwards; a nut of the pulling mechanism rotates, and the nut rotates to drive a pulling rod to move outwards to pull out the wear-resistant disc outwards; an impact heavy hammer of the impact mechanism impacts and drives an impact rod to move outwards to drive the wear-resistant disc to be pulled out outwards; the three mechanisms can be used for independently disassembling the wear-resistant disc of the drilling pump. The wear-resistant disc is removed and installed in a jacking, pulling and heavy hammer impact mode, and the special and matched tool is safe, labor-saving, time-saving and capable of protecting equipment. The problems that operators are injured, and the wear-resistant disc is low in dismounting speed and difficult to dismount after long time are solved.

Description

Technical Field

[0001] This utility model relates to the field of oil drilling technology, and more specifically to a drilling pump wear-resistant disc disassembly device. Background Technology

[0002] Mud pumps are key equipment in oil drilling operations. Their main function is to provide the necessary energy for the circulation of drilling fluid during drilling operations, and to deliver drilling fluid into the drill string at a certain pressure and flow rate, thereby stabilizing the wellbore, cooling the drill bit, and cleaning the wellbore.

[0003] Currently, drilling pumps commonly used in drilling operations are classified by power into 1300, 1600, and 2200 models, and by the type of hydraulic cylinder (three-cylinder and five-cylinder). Proper use and maintenance of drilling pumps are extremely important during operation. Disassembly and maintenance of the mud wear plate is a routine task during operations. However, in practice, a screw is usually used for lifting. Due to the limited space in the hydraulic cylinder, improper operation can easily cause the wear plate to tilt, making it difficult to remove. This extremely difficult disassembly and failure to maintain the drilling pump in a timely manner poses a risk downhole. Utility Model Content

[0004] In order to overcome the defects in the prior art, the purpose of this utility model is to provide a drilling pump wear plate disassembly device, which can disassemble the drilling pump wear plate in three ways by setting up a top mechanism, a pull mechanism and an impact mechanism.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A drilling pump wear-resistant disc disassembly device includes a jacking mechanism, a pulling mechanism, and an impact mechanism;

[0007] The top mechanism includes a top rod, which is threaded into the threaded hole of the wear-resistant disc and its top end protrudes from the threaded hole of the wear-resistant disc and abuts against the hole in the valve box. Rotating the top rod drives the wear-resistant disc to push outward.

[0008] The pulling mechanism includes a pulling baffle, a pulling rod, and a nut. The pulling baffle abuts against the support member. The inner end of the pulling rod is threaded into the threaded hole of the wear-resistant disc, and the outer end passes through the pulling baffle and is threaded with a nut. The nut abuts against the pulling baffle. Rotating the nut drives the pulling rod to move outward and pulls the wear-resistant disc outward.

[0009] The impact mechanism includes an impact rod and an impact hammer. The inner end of the impact rod is threaded into the threaded hole of the wear-resistant disc, and the outer end is equipped with the impact hammer. The impact hammer drives the impact rod to move outward, thereby pulling the wear-resistant disc outward.

[0010] Preferably, the inner end of the push rod has an external thread on its outer wall, a mating part at its top end, and a drive nut at its outer end.

[0011] Preferably, the baffle plate is provided with a rectangular baffle hole, and the outer end of the baffle rod passes through the rectangular baffle hole and is threaded with a nut.

[0012] Preferably, the baffle is cross-shaped and has rectangular pull rod holes on each side; the inner and outer walls of the pull rod are provided with external threads, and the inner threads of multiple pull rods are assembled in different threaded holes of the wear-resistant disc, and the outer ends pass through different rectangular pull rod holes and are threaded with nuts.

[0013] Preferably, multiple top mechanisms and impact mechanisms are provided.

[0014] Preferably, an impact baffle is provided at the outer end of the impact rod, and the impact hammer is sleeved on the impact rod in front of the impact baffle.

[0015] Preferably, the impact rod is provided with a handle at its end, and the handle is located behind the impact baffle.

[0016] Preferably, the impact mechanism further includes an impact connector, one end of which is provided with a connector cap and threadedly connected to the impact rod, and the other end is threadedly fitted into the threaded hole of the wear-resistant disc.

[0017] Preferably, the impact joint, push rod, and pull rod are provided in multiple types. The threaded rods that are fitted to the threaded holes of the wear-resistant disc on the impact joints of different types have different diameters. The threaded rods that are fitted to the threaded holes of the wear-resistant disc on the push rods of different types have different diameters. The threaded rods that are fitted to the threaded holes of the wear-resistant disc on the pull rods of different types have different diameters.

[0018] Preferably, the top mechanism, the pull mechanism, and the impact mechanism are placed inside the disassembly box.

[0019] The beneficial effects of this utility model are:

[0020] 1. The drilling pump wear plate disassembly device provided by this utility model has a top mechanism, a pull mechanism, and an impact mechanism, which respectively have the functions of top, pull, and impact. The top rod of the top mechanism rotates, converting its rotation into linear motion of the wear plate, driving the wear plate to be pushed outward. The nut of the pull mechanism rotates, driving the pull rod to move outward and pull the wear plate outward. The impact hammer of the impact mechanism impacts and drives the impact rod to move outward, thereby pulling the wear plate outward. The three mechanisms can each disassemble the drilling pump wear plate independently, or they can be used in combination.

[0021] 2. The drilling pump wear-resistant disc removal device provided by this utility model uses jacking, pulling, and hammer impact methods to remove the installed wear-resistant disc. With this special device and matching tools, the process is safe, labor-saving, time-saving, and protects the equipment. It overcomes problems such as operator injuries, slow wear-resistant disc removal speed, and difficulty in disassembly after a long period of time.

[0022] 3. The drilling pump wear-resistant disc disassembly device provided by this utility model utilizes the principles of impact vibration and bolt usage. During disassembly, impact vibration overcomes the frictional resistance between the wear-resistant disc and the drilling pump components, or the wear-resistant disc is disassembled smoothly by using a jacking or pulling method. This achieves refined, accurate, labor-saving, safe and efficient operation during disassembly. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the top mechanism for removing the wear-resistant disc of the drilling pump in this utility model.

[0024] Figure 2 This is a schematic diagram of the top rod of the top mechanism of this utility model;

[0025] Figure 3 This is a schematic diagram of the removal mechanism of the drilling pump wear-resistant disc in this utility model.

[0026] Figure 4 This is a schematic diagram of the pulling baffle of the pulling mechanism of this utility model;

[0027] Figure 5 This is a schematic diagram of the impact mechanism of this utility model for removing the wear-resistant disc of a drilling pump;

[0028] Figure 6 This is a schematic diagram of the impact rod, impact hammer, and impact joint of the impact mechanism of this utility model;

[0029] Figure label:

[0030] 1. Top mechanism; 11. Top rod; 111. Abutting part; 112. Drive nut; 2. Pulling mechanism; 21. Pulling baffle; 211. Rectangular pull rod hole; 22. Pulling rod; 23. Nut; 3. Impact mechanism; 31. Impact rod; 311. Impact baffle; 312. Handle; 32. Impact hammer; 33. Impact joint; 4. Wear-resistant disc; 5. Valve box; 6. Support component. Detailed Implementation

[0031] The following will provide a clear and complete description of the concept, specific structure, and technical effects of this utility model in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model.

[0032] A drilling pump wear-resistant disc disassembly device, such as Figures 1-6 As shown, it includes a top mechanism 1, a pulling mechanism 2, and an impact mechanism 3;

[0033] The top mechanism 1 includes a top rod 11, which is threaded into the threaded hole of the wear-resistant disc 4 and its top end protrudes from the threaded hole of the wear-resistant disc 4 and abuts against the hole of the valve box 5. Rotating the top rod 11 drives the wear-resistant disc 4 to push outward.

[0034] The pulling mechanism 2 includes a pulling baffle 21, a pulling rod 22, and a nut 23. The pulling baffle 21 abuts against the support member 6. The inner end of the pulling rod 22 is threaded into the threaded hole of the wear-resistant disc 4, and the outer end passes through the pulling baffle 21 and is threaded with the nut 23. The nut 23 abuts against the pulling baffle 21. Rotating the nut 23 drives the pulling rod 22 to move outward and pull the wear-resistant disc 4 outward.

[0035] The impact mechanism 3 includes an impact rod 31 and an impact hammer 32. The inner end of the impact rod 31 is threaded into the threaded hole of the wear-resistant disc 4, and the outer end is equipped with the impact hammer 32. The impact hammer 32 impacts and drives the impact rod 31 to move outward, thereby pulling the wear-resistant disc 4 outward.

[0036] In this embodiment, the top mechanism 1 has a top function. Specifically, as shown below... Figure 1 As shown, rotating the push rod 11 causes its inner end to be threaded into the threaded hole of the wear-resistant disc 4. The push rod 11 rotates and moves inward. When the rotating push rod 11 abuts against the inner end of the hole of the valve box 5, the push rod 11 continues to rotate. The inner end of the push rod 11 is blocked by the inner end of the hole of the valve box 5 and no longer moves inward. The threaded engagement converts the rotation of the push rod 11 into the linear motion of the wear-resistant disc 4. The push rod 11 drives the wear-resistant disc 4 to push outward.

[0037] The pulling mechanism 2 has a pulling function. Specifically, such as... Figure 3 As shown, the inner end of the pull rod 22 is threaded into the threaded hole of the wear-resistant disc 4, and the outer end protrudes from the pull baffle 21 and is threaded with a nut 23. When the nut 23 is rotated on the pull rod 22, the nut 23 moves inward while rotating; when the nut 23 is rotated and abuts against the pull baffle 21, if the nut 23 is rotated further, the inner end of the nut 23 is blocked by the pull baffle 21, and the nut 23 no longer moves inward on the pull rod 22. The threaded engagement converts the rotation of the nut 23 into the linear motion of the pull rod 22, and the nut 23 drives the pull rod 22 to move outward, pulling the wear-resistant disc 4 outward.

[0038] Impact mechanism 3 has an impact function. Specifically, such as... Figure 5 As shown, the inner end of the impact rod 31 is threaded into the threaded hole of the wear-resistant disc 4. The impact hammer 32 impacts the impact rod 31, applying an outward force to the impact rod 31, driving the impact rod 31 to move outward, and the impact rod 31 drives the wear-resistant disc 4 to be pulled outward.

[0039] In this embodiment, the support member 6 is a flange bolt. The holes and flange bolts of the valve box 5 are both existing structures in the prior art. The valve box 5 and the shell are connected by flanges and bolts.

[0040] like Figure 2 As shown, the inner end of the push rod 11 has an external thread on its outer wall for engaging with the threaded hole of the wear-resistant disc 4, and the top end has an abutment part 111 that abuts against the hole of the valve box 5. The outer end has a drive nut 112 for rotating the push rod 11.

[0041] like Figure 4 As shown, the baffle plate 21 is provided with rectangular pull rod holes 211. The outer end of the pull rod 22 passes through the rectangular pull rod holes 211 and is threaded with a nut 23. The baffle plate 21 is cross-shaped, and rectangular pull rod holes 211 are provided on each side. The inner and outer walls of the pull rod 22 are provided with external threads. The external threads on the inner wall are used to mate with the threaded holes of the wear-resistant disc 4, and the external threads on the outer wall are used to mate with the nut 23. The inner threads of multiple pull rods 22 are fitted into different threaded holes of the wear-resistant disc 4, and the outer ends pass through different rectangular pull rod holes 211 and are threaded with nuts 23. That is, four pull rods 22 can be installed on the four rectangular pull rod holes 211 of the baffle plate 21, and the wear-resistant disc can be pulled outward by four-point drive using the four pull rods 22. Alternatively, two pull rods 22 can be used to pull the wear-resistant disc outward by two-point drive.

[0042] In this embodiment, multiple top mechanisms 1 and impact mechanisms 3 are provided. That is, two top mechanisms 1 or impact mechanisms 3, or four top mechanisms 1 or impact mechanisms 3, etc., can be used to move the wear-resistant disc outward and disassemble it using two-point drive or four-point drive.

[0043] like Figure 6 As shown, an impact baffle 311 is provided at the outer end of the impact rod 31, and an impact hammer 32 is sleeved on the impact rod 31 in front of the impact baffle 311. In use, the impact hammer 32 strikes the impact baffle 311, applying a backward force to the impact baffle 311, driving the impact rod 31 to move backward, and the impact rod 31 drives the wear-resistant disc 4 to be pulled out backward.

[0044] like Figure 6 As shown, a handle 312 is provided at the end of the impact rod 31, and the handle 312 is located behind the impact baffle 311. In use, the operator holds the handle 312 with one hand and the impact hammer 32 with the other hand, and uses the impact hammer 32 to strike the impact baffle 311.

[0045] like Figure 6 As shown, the impact mechanism 3 also includes an impact connector 33. One end of the impact connector 33 is provided with a connector cap and is threadedly connected to the impact rod 31, while the other end is threadedly fitted into the threaded hole of the wear-resistant disc 4.

[0046] In this embodiment, the impact joint 33, the push rod 11, and the pull rod 22 are all provided in various types. The diameter of the threaded rod that is fitted to the threaded hole of the wear-resistant disc 4 on the various types of impact joint 33 is different. The diameter of the threaded rod that is fitted to the threaded hole of the wear-resistant disc 4 on the various types of push rod 11 is different. The diameter of the threaded rod that is fitted to the threaded hole of the wear-resistant disc 4 on the various types of pull rod 22 is different.

[0047] In actual working conditions, there are various specifications for the threaded hole diameter of the wear-resistant disc 4, such as M10mm and M20mm. To enable the disassembly device to adapt to the threaded holes of the wear-resistant disc 4 with different diameters, this embodiment provides various types of impact joints 33, push rods 11, and pull rods 22. The threaded rods on the various types of impact joints 33, push rods 11, and pull rods 22 that are fitted with the threaded holes of the wear-resistant disc 4 have different diameters.

[0048] For example, the diameter of the threaded hole of the wear-resistant disc 4 is M10mm. When using the top mechanism 1, select the top rod 11 that is compatible with M10mm; when using the pulling mechanism 2, select the pulling rod 22 that is compatible with M10mm; when using the impact mechanism 3, select the impact joint 33 that is compatible with M10mm and then connect it to the impact rod 31.

[0049] The top mechanism 1, the pulling mechanism 2, and the impact mechanism 3 are placed in the disassembly box. When in use, the top mechanism 1, the pulling mechanism 2, or the impact mechanism 3 in the disassembly box are taken out to disassemble the wear plate of the drilling pump, depending on the specific situation. After use, they are placed back in the disassembly box.

[0050] In this embodiment, the top mechanism 1, the pulling mechanism 2, and the impact mechanism 3 can each independently complete the disassembly of the drilling pump wear plate, each with its own advantages and disadvantages, and can be selected according to specific circumstances in actual production.

[0051] The advantages of the top mechanism 1 are: simple operation, and can be removed after proper lubrication and maintenance; the disadvantages are: it is easy to tilt the wear-resistant disc, and the top rod 11 is easy to deform if not operated properly, which increases the difficulty of the next loading and unloading.

[0052] The advantages of the pulling mechanism 2 are: smooth pulling; the disadvantages are: low pulling force, slow movement, rusting of the insert, and easy stripping of the threads on the pulling rod 22.

[0053] The advantages of impact mechanism 3 are: it has a shock function, and the impact vibration effect is even better when the embedded parts are severely corroded; the disadvantage is: the connecting screw is a vulnerable part during operation, so it is advisable to have several spare sets or increase the strength of the connecting screw.

[0054] In addition, the jacking mechanism 1, the pulling mechanism 2, and the impact mechanism 3 can also be used in combination. For example, the first method, jacking mechanism 1, involves using four bolts to push outwards evenly to remove the disc. The second method, pulling mechanism 2, is used when the first method fails or the disc cannot be removed by jacking at an angle. In this case, a support bracket (pulling baffle 21) is added inside the valve box, and the disc is removed by pulling outwards with bolts. If the wear-resistant disc cannot be disassembled due to a small gap between it and the valve box, or because it has not been inspected for a long time, the third method, impact mechanism 3, is used to remove the disc by "impacting" it outwards with a heavy hammer.

[0055] The embodiments of this utility model have been described in detail above, but this utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this utility model, and these equivalents or substitutions are all included within the scope defined by the claims of this utility model.

Claims

1. A drilling pump wear-resistant disc disassembly device, characterized in that, It includes a top mechanism (1), a pull-out mechanism (2), and an impact mechanism (3); The top mechanism (1) includes a top rod (11), which is threaded into the threaded hole of the wear-resistant disc (4) and its top end passes through the threaded hole of the wear-resistant disc (4) and abuts against the hole of the valve box (5). Rotating the top rod (11) drives the wear-resistant disc (4) to push outward. The pulling mechanism (2) includes a pulling baffle (21), a pulling rod (22), and a nut (23). The pulling baffle (21) abuts against the support member (6). The inner end of the pulling rod (22) is threaded into the threaded hole of the wear-resistant disc (4), and the outer end passes through the pulling baffle (21) and is threaded with the nut (23). The nut (23) abuts against the pulling baffle (21). Rotating the nut (23) drives the pulling rod (22) to move outward and pull the wear-resistant disc (4) outward. The impact mechanism (3) includes an impact rod (31) and an impact hammer (32). The inner end of the impact rod (31) is threaded into the threaded hole of the wear-resistant disc (4), and the outer end is equipped with the impact hammer (32). The impact hammer (32) drives the impact rod (31) to move outward, thereby pulling the wear-resistant disc (4) outward.

2. The drilling pump wear-resistant disc disassembly device as described in claim 1, characterized in that, The inner end of the top rod (11) is provided with an external thread on the outer wall, the top end is provided with an abutting part (111), and the outer end is provided with a driving nut (112).

3. The drilling pump wear-resistant disc disassembly device as described in claim 1, characterized in that, The baffle plate (21) is provided with a rectangular baffle hole (211), and the outer end of the baffle (22) passes through the rectangular baffle hole (211) and is threaded with a nut (23).

4. The drilling pump wear-resistant disc disassembly device as described in claim 3, characterized in that, The baffle (21) is cross-shaped and has rectangular pull rod holes (211) on each side; the inner and outer walls of the pull rod (22) are provided with external threads, and the inner threads of multiple pull rods (22) are assembled in different threaded holes of the wear-resistant disc (4), and the outer ends pass through different rectangular pull rod holes (211) and are threaded with nuts (23).

5. The drilling pump wear-resistant disc disassembly device as described in claim 1, characterized in that, Multiple top mechanisms (1) and impact mechanisms (3) are provided.

6. The drilling pump wear-resistant disc disassembly device as described in claim 1, characterized in that, An impact baffle (311) is provided at the outer end of the impact rod (31), and the impact hammer (32) is sleeved on the impact rod (31) in front of the impact baffle (311).

7. The drilling pump wear-resistant disc disassembly device as described in claim 6, characterized in that, The impact rod (31) is provided with a handle (312) at its end, and the handle (312) is located behind the impact baffle (311).

8. The drilling pump wear-resistant disc disassembly device as described in claim 1, characterized in that, The impact mechanism (3) also includes an impact connector (33), one end of which is provided with a connector cap and threadedly connected to the impact rod (31), and the other end is threadedly fitted into the threaded hole of the wear-resistant disc (4).

9. The drilling pump wear-resistant disc disassembly device as described in claim 8, characterized in that, The impact joint (33), push rod (11) and pull rod (22) are all provided in various types. The diameter of the threaded rod that is assembled with the threaded hole of the wear-resistant disc (4) on the various types of impact joint (33) is different. The diameter of the threaded rod that is assembled with the threaded hole of the wear-resistant disc (4) on the various types of push rod (11) is different. The diameter of the threaded rod that is assembled with the threaded hole of the wear-resistant disc (4) on the various types of pull rod (22) is different.

10. A drilling pump wear-resistant disc disassembly device as described in claim 1, characterized in that, The top mechanism (1), the pull mechanism (2) and the impact mechanism (3) are placed inside the disassembly box.

Images