Fixing device for plunger pump body machining

By designing a plunger pump body fixing device that includes a base plate, support column, mounting block and drive device, the problems of vibration and torque during the processing were solved, and the pump body was made highly stable and precisely machined, thus improving safety and efficiency.

CN223834372UActive Publication Date: 2026-01-27NINGBO MINGHE LISHENG HYDRAULIC TECH
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Patent Information

Application Number
CN202520367583.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2026-01-27
Estimated Expiration
2035-03-05

AI Technical Summary

Technical Problem

Existing plunger pump body processing equipment cannot effectively cope with vibration and torque during processing, resulting in a low pump body qualification rate and potential safety hazards.

Method used

A fixing device including a base plate, support column, mounting block, cover plate and drive device is designed. By using the combination of support column and pressure plate, combined with elastic support and drive device, the stability and accuracy of pump body during processing are ensured.

Benefits of technology

It improves the stability, precision and safety of plunger pump body machining, reduces the risk of vibration and displacement during machining, and improves machining efficiency and yield.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a fixing device for plunger pump body machining, which comprises a bottom plate, and a plurality of machining stations are arranged on the upper side of the bottom plate; the machining station comprises a base arranged on the bottom plate. The supporting column is arranged in the middle of the upper side of the base, and a connecting column is inserted into the upper end of the supporting column; the mounting block is fixedly arranged at the upper end of the connecting column; the cover plate is detachably arranged right above the connecting column through a bolt; the pressing plates are arranged on the two sides of the supporting column and used for pressing a plunger pump body; the driving device is arranged at one end of the lower side of the pressing plate, and a piston rod of the driving device is connected with the pressing plate. The pump body fixing device can solve the problems that an existing fixing device is fixed through a pressing plate or a bolt, vibration and torque generated in the machining process cannot be effectively handled, and the percent of pass of a pump body is low.
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Description

Technical Field

[0001] This utility model relates to the field of plunger pump processing technology, specifically a fixing device for processing the pump body of a plunger pump. Background Technology

[0002] Plunger pumps, as efficient and reliable fluid transport equipment, are widely used in various industries such as petroleum, chemical, and water conservancy. The machining quality of its core component, the pump body, directly affects the overall performance and service life of the pump. During pump body machining, high-precision and high-stability fixing is required to avoid vibration and displacement during processing, thereby ensuring key indicators such as the flatness and concentricity of the machined surface. Traditional fixing devices often use simple pressure plates or bolts, which cannot effectively cope with the vibration and torque generated during processing, causing pump body displacement during machining, affecting machining accuracy, increasing the labor intensity of workers, and posing safety hazards. Therefore, a new fixing device needs to be designed to meet current practical requirements. Utility Model Content

[0003] This utility model provides a fixing device for processing the pump body of a plunger pump, which can solve the problem that existing fixing devices use pressure plates or bolts for fixing, which cannot effectively cope with the vibration and torque generated during the processing, resulting in a low pump body qualification rate.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a fixing device for machining a plunger pump body, comprising a base plate, with multiple machining stations arranged on the upper side of the base plate; each machining station includes a base mounted on the base plate; a support column disposed in the upper middle part of the base, with a connecting column inserted into the upper end of the support column; a mounting block fixedly disposed on the upper end of the connecting column; a cover plate detachably disposed above the connecting column by bolts; pressure plates disposed on both sides of the support column for pressing the plunger pump body; and a driving device disposed at one lower end of the pressure plate, with the piston rod of the driving device connected to the pressure plate, thereby improving the stability, accuracy, efficiency, and safety of the plunger pump body machining.

[0005] Preferably, the cross-section of the mounting block gradually increases from top to bottom for accurate positioning.

[0006] Preferably, a connecting block is sleeved on the support column, and an auxiliary support block is installed on the upper side of the connecting block to provide auxiliary support.

[0007] Preferably, the bottom of the auxiliary support block is provided with at least one spring, with the two ends of the spring abutting against the auxiliary support block and the connecting block respectively, providing elastic support and effectively absorbing minor vibrations during the processing.

[0008] Preferably, the cover plate includes a fixed shaft inserted into the pump body of the plunger pump, and an mounting plate is provided on the upper side of the fixed shaft, which has a simple structure and is easy to install.

[0009] Preferably, handles are provided at both ends of the upper side of the base plate, which facilitates the movement of the entire device.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] With its simple structure and convenient operation, it ensures that the plunger pump body does not move or vibrate during the processing, improving the stability, accuracy, efficiency and safety of the plunger pump body processing. It can solve the problem that the existing fixing devices, which use pressure plates or bolts for fixing, cannot effectively cope with the vibration and torque generated during the processing, resulting in a low pump body qualification rate. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a three-dimensional structural diagram of the product in its installed state according to this utility model;

[0014] Figure 3 This is a front sectional view of the present invention;

[0015] Figure 4 This is a three-dimensional structural diagram of the cover plate of this utility model.

[0016] Figure label:

[0017] 1. Base plate, 2. Machining station, 3. Base, 4. Support column, 5. Connecting column, 6. Mounting block, 7. Cover plate, 71. Fixed shaft, 72. Mounting plate, 8. Bolt, 9. Pressure plate, 10. Connecting block, 11. Auxiliary support block, 12. Spring, 13. Drive device, 14. Handle, 20. Plunger pump body. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] like Figure 1-4As shown, this utility model addresses the problem that existing fixing devices, which use pressure plates or bolts for fixation, cannot effectively cope with vibrations and torques generated during processing, resulting in a low pump body qualification rate. The present invention provides the following technical solution: A fixing device for processing plunger pump bodies includes a base plate 1, with multiple processing stations 2 on the upper side of the base plate 1; each processing station 2 includes a base 3 mounted on the base plate 1; a support column 4 located in the upper middle part of the base 3, with a connecting column 5 inserted into the upper end of the support column 4; a mounting block 6 fixedly mounted on the upper end of the connecting column 5; a cover plate 7 detachably mounted above the connecting column 5 via bolts 8; pressure plates 9 located on both sides of the support column 4 for pressing the plunger pump body 20; and a drive device 13 located at one lower end of the pressure plate 9, with the piston rod of the drive device 13 connected to the pressure plate 9, thereby improving the stability, accuracy, efficiency, and safety of the plunger pump body processing.

[0020] In this embodiment, as Figure 3 As shown, the cross-section of the mounting block 6 gradually increases from top to bottom, ensuring accurate positioning.

[0021] In this embodiment, as Figure 3 As shown, a connecting block 10 is sleeved on the support column 4, and an auxiliary support block 11 is installed on the upper side of the connecting block 10 to provide auxiliary support.

[0022] In this embodiment, as Figure 3 As shown, at least one spring 12 is provided at the bottom of the auxiliary support block 11. The two ends of the spring 12 abut against the auxiliary support block 11 and the connecting block 10 respectively, providing elastic support and effectively absorbing minor vibrations during the processing.

[0023] In this embodiment, as Figure 4 As shown, the cover plate 7 includes a fixed shaft 71 inserted into the plunger pump body 20, and an mounting plate 72 is provided on the upper side of the fixed shaft 71. The structure is simple and easy to install.

[0024] In this embodiment, as Figure 1 As shown, handles 14 are provided at both ends of the upper side of the base plate 1, which facilitates the movement of the entire device.

[0025] In this embodiment, as Figure 1 As shown, the operator places the plunger pump body 20 onto the mounting block 6. The auxiliary support block 11 is located inside the plunger pump body 20 and supports it. The fixing shaft 71 of the cover plate 7 is inserted into the hole at the top of the plunger pump body 20. The bolt 8 is connected to the mounting block 6. The drive device 13 is activated, and the pressure plate 9 presses down on the lower end of the plunger pump body 20 and fixes it. After the two plunger pump bodies 20 are installed, the device can be moved to the processing area by the handle 14 for processing.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A fixing device for machining the pump body of a plunger pump, characterized in that, include: A base plate (1) is provided on the upper side of which multiple processing stations (2); The processing station (2) includes a base (3) disposed on the base plate (1); A support column (4) is provided on the upper middle part of the base (3), and a connecting column (5) is inserted into the upper end of the support column (4); Mounting block (6), which is fixedly installed at the upper end of the connecting post (5); A cover plate (7) is detachably mounted directly above the connecting post (5) by bolts (8); Pressure plates (9) are provided on both sides of the support column (4) to press the plunger pump body (20); A drive device (13) is disposed at one end of the lower side of the pressure plate (9), and the piston rod of the drive device (13) is connected to the pressure plate (9).

2. The fixing device for machining the piston pump body according to claim 1, characterized in that: The cross-section of the mounting block (6) gradually increases from top to bottom.

3. The fixing device for machining the pump body of a plunger pump according to claim 1, characterized in that: A connecting block (10) is sleeved on the support column (4), and an auxiliary support block (11) is installed on the upper side of the connecting block (10).

4. The fixing device for machining the plunger pump body according to claim 3, characterized in that: At least one spring (12) is provided at the bottom of the auxiliary support block (11), and the two ends of the spring (12) abut against the auxiliary support block (11) and the connecting block (10) respectively.

5. The fixing device for machining the pump body of a plunger pump according to claim 1, characterized in that: The cover plate (7) includes a fixed shaft (71) inserted into the pump body (20) of the plunger pump, and an mounting plate (72) is provided on the upper side of the fixed shaft (71).

6. The fixing device for machining the piston pump body according to claim 1, characterized in that: Handles (14) are provided at both ends of the upper side of the base plate (1).