Plunger pair testing device of plunger pump

By designing the plunger pump plunger secondary testing device, the return spring and balance cylinder are used to simulate the movement rules of the plunger, and connected to the transmission shaft through an adjustable swash plate frame, the difficulty of plunger secondary testing is solved, and the oil film characteristic parameters are reliable acquisition and testing under different conditions are achieved.

CN222668365UActive Publication Date: 2025-03-25JIANGSU DEXIANG CHEM MASCH CO LTD
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Patent Information

Application Number
CN202323656507.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-31
Publication Date
2025-03-25
Estimated Expiration
2033-12-31

AI Technical Summary

Technical Problem

Due to the compactness and complexity of the axial plunger pump structure, testing for the plunger pair is more difficult, especially when obtaining the oil film characteristic parameters, it is necessary to actually measure it.

Method used

A plunger pump plunger secondary testing device is designed, including a test box, cylinder and transmission shaft. By setting a return spring and a balanced cylinder, the plunger reciprocating motion under the action of the swash plate and the oil pressure, and connected to the transmission shaft through an adjustable swash plate frame to achieve an oil film testing environment at different inclinations.

Benefits of technology

This device can truly simulate the movement rules of the plunger, provide a reliable environment for the oil film test of the plunger pair, and adjust the angle of the swash plate frame, oil film test under different conditions can be realized, reducing the uneven force on the swash plate by the test.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model relates to the technical field of plunger pumps, in particular to a plunger pump plunger pair testing device, which comprises a testing box body, a cylinder body and a transmission shaft, the testing box body comprises a left box body and a right box body, the cylinder body is fixed on the left box body through a bolt, and the transmission shaft is rotatably connected in the right box body through a bearing. The end part of the transmission shaft extends into the left box body and is connected with a swash plate (8); a plunger is arranged in a plunger cavity of the cylinder body, a return spring is further arranged between the plunger and the cylinder body, and a plunger head of the plunger is always in contact with the swash plate through the return spring. A balance cylinder body is further arranged in the left box body, a balance plunger is arranged in the balance cylinder body, and the balance plunger and the plunger are oppositely arranged along the center point of the swash plate. According to the utility model, the cylinder body is fixed in the left box body, and the plunger is always contacted with the swash plate through the return spring to simulate the reciprocating motion of the plunger in the plunger cavity under the action of the swash plate and oil pressure, so that an environment is provided for the oil film test of the plunger pair.
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