Plunger through-flow performance detection tool and detection system

Abstract

The utility model discloses a plunger through-flow performance detection tool and system, and the tool comprises a cover body and a box body which is connected with the cover body in a sealing manner, and the cover body is provided with an air hole which is used for installing an air injection connector. An air storage cavity, a plunger sleeve installation cavity used for containing a plunger sleeve, a plunger installation cavity used for containing a plunger assembly and a plunger push rod hole used for containing a plunger push rod which are communicated with one another are sequentially formed in the box body in the direction from the cover body to the center line of the bottom face of the box body. An exhaust hole vertically communicated with the plunger mounting cavity is formed in one side of the plunger mounting cavity; according to the plunger pump, the through-flow performance between the plunger and the plunger sleeve without a sealing element structure can be detected, the volume efficiency of the plunger pump is estimated in advance, and the high volume efficiency of the plunger pump is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of plunger pumps, and in particular to a plunger flow performance detection tool and detection system. Background Art

[0002] The plunger pump is a key component in hydraulic systems. It relies on the reciprocating motion of the plunger within the cylinder, causing the volume of the sealed working chamber to change, achieving oil suction and pressure. It offers advantages such as high rated pressure, compact structure, high efficiency, and easy flow regulation. Existing plunger pumps used in hydraulic brake systems all feature a sealing ring between the plunger and the plunger sleeve. This eliminates the need for flow testing before the seal fails, and replacing the seal or assembly after failure results in significant resource waste. A structure without a sealing ring between the plunger and the plunger sleeve can save costs and improve fatigue performance stability. However, to ensure high volumetric efficiency, flow testing between the plunger and the plunger sleeve is required. Utility Model Content

[0003] In order to solve the above problems, the present application provides a plunger flow performance testing tool and testing system, which can test the flow performance between the plunger and the plunger sleeve of a seal-free structure and estimate the volumetric efficiency of the plunger pump in advance. The technical solution is as follows:

[0004] The present application provides a plunger flow performance testing tool, comprising a cover body and a box body sealed with the cover body, wherein the cover body is provided with an air hole for installing an air injection joint, and within the box body, a connected air storage chamber, a plunger sleeve mounting chamber for accommodating a plunger sleeve, a plunger mounting chamber for accommodating a plunger assembly, and a plunger push rod hole for accommodating a plunger push rod are sequentially provided along a center line direction from the cover body to the bottom surface of the box body, and an exhaust hole vertically connected to the plunger mounting chamber is provided on one side of the plunger mounting chamber.

[0005] For example, in the plunger flow performance testing tool provided in one embodiment, a boss for connecting to the box body is provided at the center of the bottom surface of the cover body facing the box body, and a boss sealing cavity for accommodating the boss is provided in the box body. The boss sealing cavity is located on the side of the air storage cavity facing the cover body and is centrally aligned.

[0006] For example, in the plunger flow performance testing tool provided in one embodiment, a groove for installing a sealing ring is provided on the side surface of the boss to achieve a sealed connection between the cover body and the box body.

[0007] For example, in the plunger flow performance testing tool provided in one embodiment, guide chamfers for disassembling / assembling the plunger assembly are provided between the air storage chamber and the boss sealing chamber, and between the air storage chamber and the plunger sleeve mounting chamber.

[0008] For example, in the plunger flow performance testing tool provided in one embodiment, the chamfer angle of the guide chamfer 8.2 is 15-25°.

[0009] For example, in the plunger flow performance testing tool provided in one embodiment, a thin nut installation cavity for assembling a thin nut is further provided in the box body, and the thin nut installation cavity is located between the plunger installation cavity and the plunger push rod hole.

[0010] For example, in the plunger flow performance testing tool provided in one embodiment, an air hole for installing the air injection joint is provided in the center of the cover body, and a thread is provided on the inner wall of the air hole.

[0011] For example, in the plunger flow performance testing tool provided in one embodiment, the air storage chamber is used to load the spring seat and the return spring, the return spring is fixed in the spring seat, and the free end of the return spring abuts against the plunger assembly.

[0012] The second aspect of the present application provides a plunger flow performance detection system for detecting the above-mentioned plunger flow performance detection tooling, including a first switch, an air storage tank, a pressure regulating valve, a second switch and an air source connected in sequence to the plunger flow performance detection tooling through an air pipeline.

[0013] For example, in the plunger flow performance detection system provided in one embodiment, a pressure sensor is provided on the gas storage tank to monitor the pressure in the gas storage tank.

[0014] The beneficial effects brought about by a plunger flow performance detection tool and detection system provided in some embodiments of the present application are: the present application can detect the flow performance between the plunger and the plunger sleeve of a seal-free structure, estimate the volumetric efficiency of the plunger pump in advance, and ensure the high volumetric efficiency of the plunger pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a cross-sectional view of the overall structure of the plunger flow performance testing tool of this application;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the box body of this application;

[0018] Figure 3This is a schematic diagram of the cross-sectional structure of the cover body of this application;

[0019] Figure 4 This is a connection diagram of the plunger flow performance detection system of this application. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0021] Unless otherwise defined, the technical or scientific terms used in this disclosure should have the usual meanings understood by persons of ordinary skill in the field to which this disclosure belongs. The words "first", "second" and similar terms used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0022] The first aspect of the present application provides a plunger flow performance detection tool, such as Figure 1-2 As shown, the plunger flow performance testing tool M includes a cover body 1 and a box body 8 sealed with the cover body 1, an air hole 1.1 for installing an air injection joint is provided on the cover body 1, and in the box body 8, a connected air storage chamber 8.3, a plunger sleeve mounting chamber 8.4 for accommodating the plunger sleeve 6, a plunger mounting chamber 8.6 for accommodating the plunger assembly 5 and a plunger push rod hole 8.8 for accommodating the plunger push rod 9 are provided in sequence along the center line direction from the cover body 1 to the bottom surface of the box body 8, and an exhaust hole 8.5 vertically connected to the plunger mounting chamber 8.6 is provided on one side of the plunger mounting chamber 8.6.

[0023] The plunger flow performance testing tool of the present application can test the flow performance between the plunger and the plunger sleeve of a structure without a sealing ring, estimate the volumetric efficiency of the plunger pump in advance, and ensure the high volumetric efficiency of the plunger pump.

[0024] In the process of testing the flow performance of the plunger, the plunger push rod 9 is installed into the plunger push rod hole 8.8 and pushed, so as to test the flow capacity between the plunger assembly 5 and the plunger sleeve 6 in the simulated working process.

[0025] For example, in the plunger flow performance detection tool provided in one embodiment, Figure 3 As shown, a boss 1.3 for connecting to the box body 8 is provided at the center of the bottom surface of the cover body 1 facing the box body 8, and a boss sealing cavity 8.1 for accommodating the boss 1.3 is provided in the box body 8. The boss sealing cavity 8.1 is located on the side of the air storage cavity 8.3 facing the cover body 1 and is aligned with the center.

[0026] The cover 1 and the box 8 can be connected by means of a buckle or the like to achieve rapid locking of the cover 1 and the box 8, ensuring that the cover 1 and the box 8 remain stationary during the detection process.

[0027] For example, in the plunger flow performance detection tool provided in one embodiment, Figure 3 As shown, a groove 1.2 for mounting a sealing ring 2 is provided on the side surface of the boss 1.3 to achieve a sealed connection between the cover 1 and the box body 8.

[0028] According to the above embodiment, the sealing ring 2 is embedded in the side wall of the boss 1.3, so as to play a sealing role after the cover 1 is assembled on the box body 8.

[0029] For example, in the plunger flow performance detection tool provided in one embodiment, Figure 2 As shown, guide chamfers 8.2 for disassembling / assembling the plunger assembly are provided between the air storage chamber 8.3 and the boss sealing chamber 8.1 and between the air storage chamber 8.3 and the plunger sleeve mounting chamber 8.4.

[0030] According to the above embodiment, by providing guide chamfers 8.2 at the upper and lower ends of the air storage chamber 8.3, it is possible to ensure that the sealing ring 2 is not damaged, and to facilitate installation and removal of the plunger assembly 5.

[0031] For example, in the plunger flow performance detection tool provided in one embodiment, Figure 2 As shown, the chamfer angle of the guide chamfer 8.2 is 15-25°.

[0032] For example, in the plunger flow performance detection tool provided in one embodiment, Figure 1-2 As shown, a thin nut mounting cavity 8.7 for assembling a thin nut 7 is further provided in the box body, and the thin nut mounting cavity 8.7 is located between the plunger mounting cavity 8.6 and the plunger push rod hole 8.8.

[0033] According to the above embodiment, by providing the thin nut 7 , the thin nut 7 is installed before the plunger sleeve 6 is assembled, thereby facilitating the disassembly of the plunger sleeve 6 .

[0034] For example, in the plunger flow performance detection tool provided in one embodiment, Figure 1 As shown, an air hole 1.1 for installing the air injection joint is provided at the center of the cover body 1, and a thread is provided on the inner wall of the air hole 1.1.

[0035] For example, in the plunger flow performance detection tool provided in one embodiment, Figure 1 As shown, the air storage chamber 8.3 is used to load the spring seat 3 and the return spring 4. The return spring 4 is fixed in the spring seat 3, and the free end of the return spring 4 abuts against the plunger assembly 5.

[0036] The plunger flow performance testing tool of the present application, during testing, sequentially loads the thin nut 7, plunger sleeve 6, plunger assembly 5, return spring 4, spring seat 3 and other components into the box body 8, and then covers it with a cover body 1 with a sealing ring 2.

[0037] The second aspect of the present application provides a plunger flow performance detection system for detecting the above plunger flow performance detection tool M, such as Figure 4 As shown, it includes a first switch A, a gas storage tank B, a pressure regulating valve C, a second switch D and a gas source E which are sequentially connected to the plunger flow performance detection tool M through a gas pipeline.

[0038] The plunger flow performance testing tool M is used in conjunction with the gas storage tank B and the pressure regulating valve C to test the plunger flow performance.

[0039] For example, in the plunger flow performance detection system provided in one embodiment, Figure 1 As shown, a pressure sensor is provided on the gas storage tank B for monitoring the pressure inside the gas storage tank B.

[0040] The plunger flow performance detection system detection method of the present application is: connect the plunger flow performance detection tool M to the Figure 4 The air path shown is connected to the air inlet pipe through the air hole 1.1 on the cover body 1, the second switch D is closed, the pressure regulating valve C is adjusted, and a certain pressure of air is introduced into the air storage tank B. After reaching the target pressure P1 and stabilizing, the second switch D is disconnected, the first switch A is opened, and the time consumed for the pressure in the air storage tank B to drop to the measured pressure P2 is recorded. The flow capacity between the plunger assembly 5 and the plunger sleeve 6 in the plunger flow performance test tool M is calculated.

[0041] The plunger flow performance testing tool and testing system of the present application can test the flow performance between the plunger and the plunger sleeve of a structure without a sealing ring, estimate the volumetric efficiency of the plunger pump in advance, and ensure the high volumetric efficiency of the plunger pump.

[0042] Although the implementation scheme of the present application has been disclosed as above, it is not limited to the applications listed in the description and implementation mode. It can be fully applied to various fields suitable for the present application. For those familiar with this field, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present application is not limited to the specific details and illustrations shown and described herein.

Claims

1. A plunger flow performance testing tool, characterized in that: It includes a cover body and a box body sealed with the cover body, an air hole for installing an air injection joint is provided on the cover body, and in the box body, a connected air storage chamber, a plunger sleeve mounting chamber for accommodating a plunger sleeve, a plunger mounting chamber for accommodating a plunger assembly, and a plunger push rod hole for accommodating a plunger push rod are sequentially provided along the center line direction from the cover body to the bottom surface of the box body, and an exhaust hole vertically connected to the plunger mounting chamber is provided on one side of the plunger mounting chamber.

2. The plunger flow performance testing tool according to claim 1, characterized in that: A boss for connecting to the box body is provided at the center of the bottom surface of the cover body facing the box body, and a boss sealing cavity for containing the boss is provided in the box body. The boss sealing cavity is located on the side of the air storage cavity facing the cover body and is aligned with the center.

3. The plunger flow performance testing tool according to claim 2, characterized in that: A groove for installing a sealing ring is provided on the side surface of the boss to achieve a sealed connection between the cover body and the box body.

4. The plunger flow performance testing tool according to claim 3, characterized in that: Guide chamfers for disassembling / assembling the plunger assembly are provided between the air storage chamber and the boss sealing chamber, and between the air storage chamber and the plunger sleeve mounting chamber.

5. The plunger flow performance testing tool according to claim 4, characterized in that: The chamfer angle of the guide chamfer 8.2 is 15-25°.

6. The plunger flow performance testing tool according to claim 5, characterized in that: A thin nut installation cavity for assembling a thin nut is further provided in the box body, and the thin nut installation cavity is located between the plunger installation cavity and the plunger push rod hole.

7. The plunger flow performance testing tool according to claim 6, characterized in that: An air hole for installing the air injection joint is provided at the center of the cover body, and a thread is provided on the inner wall of the air hole.

8. The plunger flow performance testing tool according to claim 7, characterized in that: The air storage chamber is used for loading a spring seat and a return spring. The return spring is fixed in the spring seat, and the free end of the return spring abuts against the plunger assembly.

9. A plunger flow performance detection system, characterized by: The plunger flow performance detection tooling for detecting the plunger flow performance detection tooling according to claim 8 comprises a first switch, an air storage tank, a pressure regulating valve, a second switch and an air source which are sequentially connected to the plunger flow performance detection tooling through an air pipeline.

10. The plunger flow performance detection system according to claim 9, characterized in that: A pressure sensor is provided on the gas storage tank for monitoring the pressure in the gas storage tank.

Images