Five-plunger pump housing dismounting tool

Abstract

The utility model provides five plunger pump body dismounting tool belongs to the technical field of dismounting tool, the utility model discloses connecting rod and install the plunger cone body, fixed jaw, fastening bolt, heavy hammer on connecting rod gradually, push fixed jaw to move towards plunger cone body through the fastening bolt of screwing, when fixed jaw and plunger cone body contact gradually expand and clamp plunger cone body, fixed jaw and body inner wall clamping fit with each other, through knocking heavy hammer drive body and separate plunger pump. The utility model aims at solving the method of quick and convenient plunger pump body dismounting under the condition of not dismounting entire pump body. The tool design makes the operator can complete the dismounting of body under the condition of not dismounting entire pump body through simple steps, and specifically is through the fastening bolt of screwing, and fixed jaw clamps plunger cone body in the expansion mode and fixes body, thereby easily dismounts body from plunger pump.

Description

Technical Field

[0001] This utility model relates to a disassembly tool for a five-plunger pump housing, belonging to the technical field of disassembly tools. Background Technology

[0002] Piston pumps are commonly used in industrial production. Their working principle relies on the reciprocating motion of a piston within the pump chamber to generate pressure in the fluid. As a crucial power component in hydraulic systems, the primary function of piston pumps is to provide high-pressure, high-flow-rate fluid. Their operating environment is typically harsh, and they may malfunction after prolonged operation, requiring timely replacement. A search revealed Chinese utility model patent application number 201921274566.8, entitled "A Disassembly and Assembly Tool for a Plunger Pump." This tool includes a plunger clamp, a crossbeam, a top plate, and a hanging ring. One end of the crossbeam is connected to the top plate, and the other end is connected downwards to the top of the plunger clamp. A designated position on the crossbeam is connected downwards to the hanging ring. When the disassembly tool is used to disassemble or assemble the plunger pump, the hanging ring is used to enclose the plunger pump, hanging the tool on it. The plunger clamp is placed within the groove of the plunger in the pump. The top plate cooperates with the plunger clamp to hold the plunger in place, thus fixing the plunger during disassembly and assembly. This allows the connecting rod and plunger to separate and reassemble as the connecting rod continues to move, improving work efficiency and preventing damage to the plunger pump during disassembly and assembly.

[0003] However, this disassembly tool is not suitable for disassembling the plunger pump's gland. Replacing the plunger pump's gland is quite complicated, requiring the entire pump body to be disassembled, which is both time-consuming and labor-intensive. Therefore, it is necessary to design a specialized tool that can quickly remove the gland and complete the replacement by only removing the end cap.

[0004] Therefore, a five-plunger pump body disassembly tool is urgently needed to solve the above problems. Utility Model Content

[0005] This invention aims to solve a method for quickly and conveniently disassembling the plunger pump casing without disassembling the entire pump body. The tool is designed to allow operators to disassemble the casing through simple steps without removing the entire pump body. Specifically, by tightening the fastening bolts, the fixing claws expand and clamp the expanding plunger cone, thereby securing the casing and easily removing it from the plunger pump.

[0006] The technical solution adopted in this utility model is a five-plunger pump body disassembly tool, including a connecting rod and a piston cone, a fixing claw, a fastening bolt, and a counterweight installed sequentially on the connecting rod. By tightening the fastening bolt, the fixing claw is pushed toward the piston cone. When the fixing claw contacts the piston cone, it gradually expands and clamps the piston cone. At this time, the fixing claw is tightly fitted with the inner wall of the body. By striking the counterweight, the body is driven to detach from the plunger pump.

[0007] As a further embodiment of this utility model, the two ends of the connecting rod are threaded, and the middle part of the connecting rod is a smooth curved surface.

[0008] As a further embodiment of this utility model, the two ends of the connecting rod are respectively connected to a first fixing bolt and a second fixing bolt.

[0009] As a further embodiment of this invention, the second fixing bolt is disposed on the side near the location of the counterweight.

[0010] As a further embodiment of this invention, there are at least two second fixing bolts.

[0011] As a further embodiment of this invention, the counterweight is disposed in the middle of the connecting rod.

[0012] As a further embodiment of this utility model, the fixing claw includes an integrally formed connecting part and a claw part, a plurality of claw parts extending along one end of the connecting part and axially distributed at one end of the connecting part, and there is a gap between adjacent claw parts.

[0013] As a further embodiment of this utility model, the end of the expansion cone on the connecting rod with the smaller radial dimension faces the claw.

[0014] As a further embodiment of this utility model, the expansion cone, fixing claw, and fastening bolt are all threaded onto the outer wall of the connecting rod.

[0015] As a further embodiment of this invention, the fixing claw is made of spring steel.

[0016] This utility model discloses a tool for disassembling the five-plunger pump gland. Its beneficial effect is that, compared with the prior art, the technical effect achieved by this utility model is that, by using the expansion mechanism of the fixing claw to fix the gland, sufficient impact force is generated when the hammer strikes, ensuring that the gland can be safely removed from the pump body, thereby improving the speed and safety of gland replacement. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the fixing claw in this utility model; Figure 3 This is a top view of the fixed claw in this utility model.

[0019] The image shows: 1. Connecting rod; 2. Expanding plug cone; 3. Fixing claw; 4. Fastening bolt; 5. Counterweight; 6. First fixing bolt; 7. Second fixing bolt; 31. Connecting part; 32. Claw part. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] To further understand the utility model content of this utility model, the technical solution will be further described below in conjunction with specific embodiments.

[0022] Example 1: As Figures 1-3 As shown, this embodiment provides a disassembly tool for a five-plunger pump housing, including a connecting rod 1 and a plunger cone 2, a fixing claw 3, a fastening bolt 4, and a counterweight 5 sequentially mounted on the connecting rod 1. In one specific implementation, the connecting rod 1 has threads at both ends and a smooth curved surface in the middle. The counterweight 5 is located in the middle of the connecting rod 1. A first fixing bolt 6 and a second fixing bolt 7 are respectively connected to both ends of the connecting rod 1. The two second fixing bolts 7 are located close to the side where the counterweight 5 is located and are tightly fitted together to prevent the counterweight 5 from detaching from the connecting rod 1 when struck.

[0023] In one specific embodiment of this invention, the fixing claw 3 includes an integrally formed connecting portion 31 and claw portions 32. Several claw portions 32 extend along one end of the connecting portion 31 and are axially distributed at that end. There are gaps between adjacent claw portions 32, where the sides of adjacent claw portions 32 form elongated and curved hollow spaces, with the curved shape located at the elongated end. The outer surface of the end of each claw portion 32 has several strip-shaped protrusions to increase the friction between the claw portion 32 and the inner wall of the cascade. The expansion plug cone 2, fixing claw 3, and fastening bolt 4 are all threaded onto the outer wall of the connecting rod 1. The end of the expansion plug cone 2 on the connecting rod 1 with the smaller radial dimension faces the claw portion 32, guiding the claw portion 32 to expand evenly during expansion. When the claw portion 32 is evenly expanded to its maximum size, it fits against the inner wall of the cascade.

[0024] like Figures 1-3 As shown, taking Example 1 as an example, when using this tool, first carefully place the tool into the capsule, ensuring that the expansion cone 2 and the fixing claw 3 are in the middle of the capsule. Then, tighten the fastening bolt 4, pushing the fixing claw 3 towards the expansion cone 2. The fixing claw 3 has slots on its surface, which, based on the principle of expansion bolts, causes the fixing claw 3 to gradually expand on the outer surface of the expansion cone 2. As the fastening bolt 4 is tightened, the claw portion 32 of the fixing claw 3 will fit tightly against the inner wall of the capsule, firmly fixing the capsule in place. Subsequently, the operator can hold a heavy object and strike the hammer 5 with appropriate force, causing the connecting rod 1 to gradually move away from the first fixing bolt 6, using the impact force to remove the capsule from the plunger pump. During the striking process, care should be taken to control the force and direction to avoid unnecessary damage to the capsule or other components. At the same time, the operator should wear appropriate protective equipment to ensure their own safety.

[0025] Example 2: Based on Example 1, the fixing claw 3 is made of spring steel, which has a certain elasticity, allowing the claw portion 32 to unfold. Unlike Example 1, this example has two fixing claws 3, located on both sides of the expansion plug cone 2, with the claw portions 32 of both fixing claws facing the expansion plug cone 2. As the fastening bolts 4 are tightened, the claw portions 32 of the fixing claws 3 expand and tightly adhere to the inner wall of the plenum, thus firmly fixing the plenum in place. This arrangement greatly increases stability during disassembly.

[0026] This invention features a simple structure and is easy to operate, enabling quick disassembly of the plunger pump gland, thus improving maintenance efficiency. Furthermore, it eliminates the need to disassemble the entire pump body, reducing maintenance time and workload. The structure employing a fixing claw 3 and an expanding plug cone 2 ensures the stability of the tool during disassembly, enhancing safety. This invention is applicable to the disassembly of glands in various types of five-plunger pumps. In summary, this invention has a reasonable structure, is convenient to operate, saves time and effort, and effectively improves the disassembly efficiency of plunger pump glands, reducing maintenance costs.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tool for disassembling a five-plunger pump housing, characterized in that, Includes a connecting rod (1) and a piston cone (2), a fixing claw (3), a fastening bolt (4), and a counterweight (5) installed sequentially on the connecting rod (1). By tightening the fastening bolt (4), the fixing claw (3) is pushed toward the piston cone (2). When the fixing claw (3) contacts the piston cone (2), it gradually expands and clamps the piston cone (2). At this time, the fixing claw (3) is tightly fitted with the inner wall of the casing. By striking the counterweight (5), the casing is driven to disengage from the piston pump.

2. The five-plunger pump body disassembly tool according to claim 1, characterized in that, The two ends of the connecting rod (1) are threaded, and the middle part of the connecting rod (1) is a smooth curved surface.

3. The five-plunger pump body disassembly tool according to claim 2, characterized in that, The two ends of the connecting rod (1) are respectively connected to the first fixing bolt (6) and the second fixing bolt (7).

4. The five-plunger pump body disassembly tool according to claim 3, characterized in that... The second fixing bolt (7) is located on the side close to the weight (5).

5. The five-plunger pump housing disassembly tool according to claim 3, characterized in that, There are at least two second fixing bolts (7).

6. The five-plunger pump housing disassembly tool according to claim 2, characterized in that, The counterweight (5) is located in the middle of the connecting rod (1).

7. The five-plunger pump body disassembly tool according to claim 1, characterized in that, The fixing claw (3) includes an integrally formed connecting part (31) and claw part (32). Several claw parts (32) extend along one end of the connecting part (31) and are axially distributed at one end of the connecting part (31). There is a gap between adjacent claw parts (32).

8. The five-plunger pump housing disassembly tool according to claim 7, characterized in that, The end of the expansion cone (2) on the connecting rod (1) with the smaller radial dimension faces the claw (32).

9. The five-plunger pump body disassembly tool according to claim 2, characterized in that, The expansion cone (2), the fixing claw (3), and the fastening bolt (4) are all threaded onto the outer wall of the connecting rod (1).

10. The five-plunger pump housing disassembly tool according to claim 1, characterized in that, The material of the fixing claw (3) is spring steel.

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