Novel fracturing pump packing dismounting tool

Abstract

The utility model relates to the technical field of petroleum equipment and engineering, in particular to a novel fracturing pump packing disassembling and assembling tool which comprises a packing installing frame and a pull rod shaft, the pull rod shaft is arranged on the packing installing frame, the packing installing frame comprises a positioning disc, an installing cylinder and a blocking plate, the positioning disc is arranged at one end of the installing cylinder, and the blocking plate is arranged in the installing cylinder. The pull rod shaft comprises a push disc, a buckle plate and a pull rod, the buckle plate is arranged at one end of the pull rod, and the push disc is arranged on the side, close to the buckle plate, of the pull rod. According to the utility model, the installation cylinder is matched with the positioning disc to ensure the stability of the packing during assembly, the pull rod shaft is inserted and rotated to realize the connection with the packing installation frame, and the assembly of the packing on the pump head body is realized through the impact force generated by the sliding hammer, or the push disc on the pull rod shaft can be driven by the impact of the sliding hammer to disassemble the waste packing from the pump head body, so that the assembly efficiency is improved. Damage to the packing and the inner wall caused by manual disassembly and assembly is avoided, the sealing performance of the packing is prevented from being affected, the packing disassembly and assembly difficulty is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum equipment and engineering, in particular to a new type of fracturing pump packing disassembly and assembly tool. Background Art

[0002] Some sealing packings in the pump head body of the hydraulic end of the fracturing pump play an important role in the fracturing pump, and the fragility of the sealing packings determines that they must be replaced regularly. When the hydraulic end is operating, the plunger will perform rapid reciprocating circulation. After a period of use, the sealing packing will cause wear. In order to ensure the sealing effect and the normal operation of the fracturing pump, the packing needs to be replaced regularly, and the old packing needs to be removed before installing the new packing. Due to the large friction between the packing and the installation hole, it is difficult to remove the old packing. The traditional method is to use a screwdriver or a similar set of tools to pry it multiple times, which is not only time-consuming and labor-intensive, but also prone to pricking accidents and safety hazards. It is also easy to damage the inner wall of the packing, resulting in unsatisfactory sealing effect after the subsequent installation of the packing, which reduces the service life of the packing, thereby increasing the replacement frequency and increasing the cost of use.

[0003] Therefore, it is necessary to propose a new type of fracturing pump packing disassembly and assembly tool to overcome the defects of the prior art. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art and provide a novel fracturing pump packing disassembly and assembly tool.

[0005] The technical solution of the utility model is:

[0006] A novel fracturing pump packing disassembly and assembly tool comprises a packing mounting frame and a tie rod shaft. The tie rod shaft is detachably arranged on the packing mounting frame. The packing mounting frame comprises a positioning plate, a mounting tube and a plugging plate. The positioning plate is arranged at one end of the mounting tube, and the plugging plate is arranged inside the mounting tube. The tie rod shaft comprises a push plate, a buckle plate and a tie rod. The buckle plate is arranged at one end of the tie rod, and the push plate is arranged on a side of the tie rod close to the buckle plate.

[0007] Preferably, a through hole is provided on the blocking plate, and clamping holes are symmetrically provided on both sides of the through hole.

[0008] Preferably, the diameter of the positioning plate is larger than the diameter of the mounting tube, and the diameter of the pull rod is not larger than the diameter of the through hole.

[0009] Preferably, the new fracturing pump packing disassembly and assembly tool also includes an impact assembly, which is detachably arranged at the end of the pull rod away from the buckle plate. The impact assembly includes a sliding rod, a sliding hammer and a limit plate. The sliding hammer is slidably arranged on the sliding rod, and two limit plates are fixed on the sliding rod and located on both sides of the sliding hammer.

[0010] Preferably, one end of the pull rod is provided with an internal thread, and one end of the slide rod is provided with an external thread matching the internal thread.

[0011] Preferably, there is a clearance fit between the slide hammer and the slide rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model sets the packing on the installation cylinder and cooperates with the positioning plate to ensure the stability of the packing during assembly. The pull rod shaft is inserted and rotated to achieve connection with the packing installation frame. The sliding of the sliding hammer generates an impact force to achieve assembly of the packing on the pump head body, or the push plate on the pull rod shaft can be driven by the impact of the sliding hammer to remove the waste packing from the pump head body, thereby avoiding damage to the packing and the inner wall of the pump head body during manual disassembly and assembly of the packing, preventing the sealing of the packing from being affected, reducing the difficulty of packing disassembly and assembly, improving work efficiency and reducing use costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a left-side structural schematic diagram of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the packing mounting frame of the utility model;

[0017] Figure 4 This is a schematic diagram of the main structure of the pull rod shaft of the utility model;

[0018] Figure 5 It is a left-side structural schematic diagram of the pull rod shaft of the utility model;

[0019] Figure 6 This is a schematic diagram of the utility model in use.

[0020] Among them, 1. Packing mounting frame; 11. Positioning plate; 12. Mounting tube; 13. Through hole; 14. Clamp hole; 15. Blocking plate; 2. Tie rod shaft; 21. Push plate; 22. Buckle plate; 23. Tie rod; 231. Internal thread; 3. Pump head body; 4. Impact assembly; 41. Slide rod; 411. External thread; 42. Slide hammer; 43. Limiting plate; 5. Packing. DETAILED DESCRIPTION

[0021] In order to make the technical means, technical features, utility model objectives and technical effects achieved by the utility model easy to understand, the utility model is further explained below with reference to specific illustrations.

[0022] like Figure 1-Figure 6As shown, a new type of fracturing pump packing disassembly and assembly tool includes a packing mounting frame 1, a tie rod shaft 2 and an impact assembly 4. The packing mounting frame 1 is detachably connected to one end of the tie rod shaft 2 to realize the installation and disassembly of the packing 5 at the hydraulic end. The impact assembly 4 is detachably connected to the other end of the tie rod shaft 2 to assist in the disassembly and assembly of the packing 5.

[0023] like Figure 3 As shown, the packing mounting frame 1 includes a positioning disk 11, a mounting tube 12 and a blocking plate 15. The positioning disk 11 and the mounting tube 12 are processed as one piece. The positioning disk 11 is connected to one end of the mounting tube 12. The interior of the mounting tube 12 is processed into a hollow structure. The blocking plate 15 is fixedly connected to the interior of the mounting tube 12. The diameter of the positioning disk 11 is larger than the diameter of the mounting tube 12. When in use, the packing mounting frame 1 can be mounted on the packing 5. Specifically, the packing 5 is mounted on the mounting tube 12, and the end of the packing 5 abuts against the positioning disk 11. A through hole 13 is processed at the center of the blocking plate 15, and clamping holes 14 are respectively processed on both sides of the through hole 13. The two clamping holes 14 are symmetrically distributed and are used for the insertion and rotational positioning of the pull rod shaft 2.

[0024] like Figure 4 and Figure 5 As shown, the pull rod shaft 2 includes an integrally processed push plate 21, a buckle plate 22 and a pull rod 23, the buckle plate 22 is installed at one end of the pull rod 23, the buckle plate 22 and the pull rod 23 form a T-shaped structure, the push plate 21 is fixedly connected to the pull rod 23 and is close to the buckle plate 22, and is used for disassembly of the packing 5, the diameter of the push plate 21 is adapted to the diameter of the packing 5, the diameter of the pull rod 23 is not larger than the diameter of the through hole 13, so that the pull rod 23 can be inserted into the interior of the mounting tube 12 through the through hole 13, when inserted and connected, the pull rod 23 passes through the through hole 13, and the corresponding buckle plate 22 passes through the clamping hole 14, after passing through, the pull rod 23 is rotated so that the buckle plate 22 and the clamping hole 14 are staggered, so as to realize the installation of the pull rod shaft 2 on the packing mounting frame 1, and an internal thread 231 is processed at the end of the pull rod 23 away from the buckle plate 22 for installation and connection of the impact assembly 4.

[0025] like Figure 6 As shown, the impact assembly 4 includes a slide bar 41, a slide hammer 42 and a limit plate 43. The slide hammer 42 is mounted on the slide bar 41. There is a clearance fit between the slide hammer 42 and the slide bar 41, so that the slide hammer 42 can slide back and forth on the slide bar 41. There are two limit plates 43. The two limit plates 43 are installed on the slide bar 41 at intervals. The slide hammer 42 is located between the two limit plates 43. An external thread 411 is processed at one end of the slide bar 41. The external thread 411 is adapted to the internal thread 231 of the pull rod 23 to realize the threaded connection between the slide bar 41 and the pull rod 23.

[0026] The working principle of the utility model is:

[0027] like Figure 6 As shown, when the packing 5 is installed, the packing 5 is sleeved on the mounting tube 12 of the packing mounting frame 1. The mounting tube 12 and the positioning plate 11 ensure the stability of the packing 5 after installation. The packing mounting frame 1 connected with the packing 5 is installed into the mounting hole of the pump head body 3, and the pull rod 23 is inserted into the pump head body 3 from the opposite direction, so that the pull rod 23 passes through the through hole 13, and the buckle plate 22 passes through the clamping hole 14. After the pull rod 23 is rotated for a certain angle, the connection between the pull rod shaft 2 and the packing mounting frame 1 is completed, and the slide rod 41 is tightened on the internal thread 231 of the pull rod 23 through the external thread 411. The pulling force is manually applied or the sliding hammer 42 is reciprocated along the axial direction of the sliding rod 41. The sliding hammer 42 knocks the limit plate 43 away from one end of the packing 5 to generate an impact force. The installation tube 12 is driven by the impact force, and the positioning plate 11 assembles the packing 5 into the pump head body 3;

[0028] When removing the packing 5, insert the tie rod shaft 2 from the opposite direction of the installation of the packing 5, so that the push plate 21 abuts against the end of the packing 5, and manually apply thrust or use the reciprocating sliding hammer 42 to hit the limit plate 43 close to the side of the tie rod shaft 2 to generate an impact force. Under the action of the thrust or impact force, the push plate 21 removes the packing 5 from the mounting hole of the pump head body 3.

[0029] The above description is only a preferred embodiment of the utility model, and is not intended to limit the scope of implementation of the utility model. That is, all equivalent changes and modifications made according to the content of the patent application scope of the utility model should belong to the technical scope of the utility model.

Claims

1. A new type of fracturing pump packing disassembly and assembly tool, characterized by: The invention comprises a packing mounting frame (1) and a pull rod shaft (2), wherein the pull rod shaft (2) is detachably arranged on the packing mounting frame (1), the packing mounting frame (1) comprises a positioning plate (11), a mounting tube (12) and a blocking plate (15), wherein the positioning plate (11) is arranged at one end of the mounting tube (12), and the blocking plate (15) is arranged inside the mounting tube (12), the pull rod shaft (2) comprises a push plate (21), a pinch plate (22) and a pull rod (23), wherein the pinch plate (22) is arranged at one end of the pull rod (23), and the push plate (21) is arranged on a side of the pull rod (23) close to the pinch plate (22).

2. The new fracturing pump packing disassembly and assembly tool according to claim 1 is characterized by: The blocking plate (15) is provided with a through hole (13), and clamping holes (14) are symmetrically provided on both sides of the through hole (13).

3. The new fracturing pump packing disassembly and assembly tool according to claim 2 is characterized by: The diameter of the positioning plate (11) is larger than the diameter of the mounting tube (12), and the diameter of the pull rod (23) is no larger than the diameter of the through hole (13).

4. The new fracturing pump packing disassembly and assembly tool according to claim 1 is characterized by: The impact assembly (4) is also included. The impact assembly (4) is detachably arranged at one end of the pull rod (23) away from the buckle plate (22). The impact assembly (4) includes a slide rod (41), a slide hammer (42) and a limit plate (43). The slide hammer (42) is slidably arranged on the slide rod (41). The two limit plates (43) are fixed on the slide rod (41) and are located on both sides of the slide hammer (42).

5. The new fracturing pump packing disassembly and assembly tool according to claim 4 is characterized in that: One end of the pull rod (23) is provided with an internal thread (231), and one end of the sliding rod (41) is provided with an external thread (411) that matches the internal thread (231).

6. The new fracturing pump packing disassembly and assembly tool according to claim 4 is characterized by: The slide hammer (42) and the slide rod (41) are clearance-fitted.

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