Hydraulic valve performance test experiment table
By designing a hydraulic valve performance test bench, using the combination of pressure sensor and solenoid valve, the problem of difficult detection of slight leakage of hydraulic valves is solved, accurate detection and quantification of leakage is achieved, and the stability and reliability of the hydraulic system are improved.
Patent Information
- Application Number
- CN202422476550.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-14
AI Technical Summary
The prior art is difficult to accurately capture and quantify the minor leakage of hydraulic valves, resulting in the problem of lax sealing.
A hydraulic valve performance testing laboratory bench was designed, including support components, hydraulic components, transverse components and test components. The pressure changes of leaked liquid are captured through a pressure sensor and converted into a quantization signal. Combined with a solenoid valve to control the liquid flow, the detection and quantification of leakage is achieved.
Accurate detection and quantification of slight leakage of hydraulic valves is achieved, and the stability and reliability of the hydraulic system are improved.
Smart Images
Figure CN223154467U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydraulic valve performance testing, and specifically relates to a hydraulic valve performance testing experimental bench. Background Technique
[0002] In the field of hydraulic technology, as a key component for controlling the fluid pressure, flow rate, and direction of a hydraulic system, the stability and accuracy of the performance of a hydraulic valve directly affect the efficiency and reliability of the entire hydraulic system. Therefore, during the research and creation of hydraulic valves. The sealing components in hydraulic valves are parts to prevent leakage. If the designed sealing component material is not good, the installation is improper, or it is worn after long-term use, it may lead to poor sealing, resulting in leakage under high pressure. In actual use, there are certain limitations in detecting slight leakage of hydraulic valves; due to the small flow rate of slight leakage, it may be far lower than the sensitivity threshold of the experimental bench detection system, so it is difficult to be accurately captured and quantified. Content of the Utility Model
[0003] The utility model provides a hydraulic valve performance testing experimental bench to solve the problems raised in the above background technique.
[0004] To achieve the above object, the utility model provides the following technical solution: A hydraulic valve performance testing experimental bench includes a support assembly, a hydraulic assembly, a transverse movement assembly, and a testing assembly. The support assembly includes a support table, with a hydraulic assembly arranged in the middle of the support table, a transverse movement assembly arranged at the upper end of the support table, and a testing assembly arranged on the transverse movement assembly. The testing assembly includes a testing bracket, the testing bracket is fixed to the upper right side of the upper end of the support table, a pressure connection port is installed at the upper end of the testing bracket, a pressure gauge is installed on the front side of the pressure connection port, the right side of the pressure connection port is connected to the hydraulic assembly through a first connecting pipe. The transverse movement assembly includes a transverse movement block, a leakage detection port is fixed to the upper end of the transverse movement block, a component to be tested is installed between the leakage detection port and the pressure connection port, a pressure sensor is arranged on the left side of the leakage detection port, a solenoid valve is arranged on the left side of the leakage detection port, and the solenoid valve is connected to the hydraulic assembly through a second connecting pipe.
[0005] Preferably, universal wheels are arranged at the corners of the lower end of the support table.
[0006] Preferably, rotary feet are arranged at the corners of the lower end of the support table.
[0007] Preferably, the hydraulic assembly includes a hydraulic pump and an oil tank. The oil tank is fixed to the lower end inside the support table, the hydraulic pump is installed on the upper end of the oil tank, the lower end of the first connecting pipe is connected to the hydraulic pump, and the lower end of the second connecting pipe is connected to the oil tank.
[0008] Preferably, the transverse movement assembly includes a transverse movement base which is installed at the upper end of the support platform. Guide rails are fixed on both sides of the transverse movement base, and the transverse movement block is movably installed at the upper end of the transverse movement base through the guide rails.
[0009] Preferably, a threaded rod is movably installed on the transverse movement base. The transverse movement block is installed on the outside of the threaded rod. A driving motor is installed on the left side of the transverse movement base. The driving motor is connected to the threaded rod, and the driving motor is a servo motor.
[0010] Compared with the prior art, the utility model has the following beneficial effects: In actual use, the hydraulic component fills high-pressure liquid into the hydraulic valve to be detected, and then closes the component to be detected and the solenoid valve to form a closed test environment; continuous pressure is applied through the pressure interface. If there is leakage in the seal, the leaked liquid will accumulate at the leakage detection port, and the pressure sensor will capture the pressure change and convert it into a quantitative signal, so as to judge the existence of leakage and estimate the leakage amount, solving the problem that it is difficult for the traditional detection system to capture and quantify minor leakage. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 is a schematic structural diagram of the utility model;
[0012] Figure 2 is a front view structural diagram of the utility model;
[0013] Figure 3 is a schematic structural diagram of the open state of the utility model;
[0014] Figure 4 is a rear view structural diagram of the open state of the utility model.
[0015] In the figure: 1. Support assembly; 11. Support platform; 12. Rotating support feet; 13. Moving pulleys; 2. Hydraulic component; 21. Hydraulic pump; 22. Fuel tank; 3. Transverse movement assembly; 31. Transverse movement base; 311. Guide rails; 32. Transverse movement block; 33. Threaded rod; 34. Driving motor; 4. Test assembly; 41. Test bracket; 42. Pressure interface; 43. First connecting pipe; 44. Pressure gauge; 45. Leakage detection port; 46. Solenoid valve; 47. Pressure sensor; 48. Second connecting pipe; 5. Component to be detected. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.
[0017] Please refer to Figures 1-4 , the present utility model provides a technical solution: a hydraulic valve performance test bench, including a support assembly 1, a hydraulic assembly 2, a transverse movement assembly 3 and a test assembly 4. The support assembly 1 includes a support table 11. The hydraulic assembly 2 is arranged in the middle of the support table 11. The transverse movement assembly 3 is arranged at the upper end of the support table 11. The test assembly 4 is arranged on the transverse movement assembly 3. The test assembly 4 includes a test bracket 41. The test bracket 41 is fixed to the upper right side of the upper end of the support table 11. A pressure connection port 42 is installed at the upper end of the test bracket 41. A pressure gauge 44 is installed on the front side of the pressure connection port 42. The pressure connection port 42 is connected to the hydraulic assembly 2 through a first connecting pipe 43 on the right side. The transverse movement assembly 3 includes a transverse movement block 32. A leakage detection port 45 is fixed to the upper end of the transverse movement block 32. A test piece 5 is installed between the leakage detection port 45 and the pressure connection port 42. A pressure sensor 47 is arranged on the left side of the leakage detection port 45. A solenoid valve 46 is arranged on the left side of the leakage detection port 45. The solenoid valve 46 is connected to the hydraulic assembly 2 through a second connecting pipe 48 on the left side;
[0018] During use, the support assembly 1 is the basic structure of the entire test bench. The hydraulic assembly 2 is responsible for generating and controlling the high-pressure liquid required for testing. The transverse movement assembly 3 can move horizontally to adjust the position, facilitating the installation and testing of hydraulic valves to be tested with different specifications. The pressure connection port 42 is installed at the upper end of the test bracket 41 for connecting the inlet of the hydraulic valve to be tested and receiving the high-pressure liquid from the hydraulic assembly 2 through the first connecting pipe 43. The pressure gauge 44 is installed on the front side of the pressure connection port 42 to display the pressure value during the test in real time. The leakage detection port 45 is fixed to the upper end of the transverse movement block 32 and is connected to the outlet of the hydraulic valve to be tested for collecting the leaked liquid that may occur. The pressure sensor 47 can convert the weak pressure signal into a quantifiable electrical signal for subsequent analysis. The opening and closing of the solenoid valve 46 control the liquid flow of the test system and cooperate with the pressure sensor 47.
[0019] Moving pulleys 13 are arranged at the lower corners of the support table 11. The moving pulleys 13 are universal wheels, which enable the test bench to move easily between different working areas.
[0020] Rotating feet 12 are arranged at the lower corners of the support table 11. The adjustable rotating feet 12 enable the test bench to adapt to different ground conditions and working environments. Whether it is a flat laboratory floor or a slightly uneven industrial site, it can maintain a stable working state.
[0021] The hydraulic component 2 includes a hydraulic pump 21 and an oil tank 22. The oil tank 22 is fixed to the lower end inside the support platform 11, and the hydraulic pump 21 is installed at the upper end of the oil tank 22. The lower end of the first connecting pipe 43 is connected to the hydraulic pump 21, and the lower end of the second connecting pipe 48 is connected to the oil tank 22. The oil tank 22 is an oil storage device in the hydraulic system for storing hydraulic oil used by the hydraulic system. The hydraulic pump 21 converts the mechanical energy of an electric motor or other prime mover into hydraulic energy.
[0022] The transverse movement component 3 includes a transverse movement base 31. The transverse movement base 31 is installed at the upper end of the support platform 11. Guide rails 311 are fixed on both sides of the transverse movement base 31. The transverse movement block 32 is movably installed at the upper end of the transverse movement base 31 through the guide rails 311. The transverse movement base 31 is the basic structure of the transverse movement component 3. It is installed at the upper end of the support platform 11, providing a stable installation platform for the guide rails 311 and the transverse movement block 32. The design of the transverse movement block 32 enables the leakage detection port 45 to flexibly adjust its position in the horizontal direction.
[0023] A threaded rod 33 is movably installed on the transverse movement base 31. The transverse movement block 32 is installed outside the threaded rod 33. A drive motor 34 is installed on the left side of the transverse movement base 31. The drive motor 34 is connected to the threaded rod 33. The drive motor 34 is a servo motor. When the threaded rod 33 rotates, the transverse movement block 32 will move linearly along the axial direction of the threaded rod 33. The drive motor 34 drives the movement of the transverse movement block 32 by rotating the threaded rod 33.
[0024] As an embodiment of the present utility model: when using the hydraulic valve performance test bench, first, the hydraulic component 2 fills the hydraulic valve to be detected with high-pressure liquid. Subsequently, the component to be detected 5 and the solenoid valve 46 are closed to form a closed test environment; pressure is continuously applied through the pressure connection port 42. If there is leakage in the seal, the leaked liquid will accumulate at the leakage detection port 45, and the pressure sensor 47 will capture the pressure change and convert it into a quantified signal, thereby determining the existence of leakage and estimating the leakage amount, thus solving the problem that it is difficult for traditional detection systems to capture and quantify minor leakage.
[0025] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A hydraulic valve performance test bench, comprising a support assembly (1), a hydraulic assembly (2), a transverse movement assembly (3) and a test assembly (4). The support assembly (1) includes a support table (11), and the hydraulic assembly (2) is arranged in the middle of the support table (11), characterized in that: A transverse movement assembly (3) is provided at the upper end of the support platform (11), and a test assembly (4) is provided on the transverse movement assembly (3); The test assembly (4) includes a test bracket (41). The test bracket (41) is fixed to the upper right side of the upper end of the support platform (11). A pressure connection port (42) is installed at the upper end of the test bracket (41). A pressure gauge (44) is installed on the front side of the pressure connection port (42). The right side of the pressure connection port (42) is connected to the hydraulic assembly (2) through a first connecting pipe (43). The transverse movement assembly (3) includes a transverse movement block (32). A leakage detection port (45) is fixed to the upper end of the transverse movement block (32). A test piece to be detected (5) is installed between the leakage detection port (45) and the pressure connection port (42). A pressure sensor (47) is provided on the left side of the leakage detection port (45). A solenoid valve (46) is provided on the left side of the leakage detection port (45). The solenoid valve (46) is connected to the hydraulic assembly (2) through a second connecting pipe (48).
2. The performance test bench for a hydraulic valve according to claim 1, characterized in that: Movable pulleys (13) are provided at the lower corners of the support platform (11), and the movable pulleys (13) are universal wheels.
3. A hydraulic valve performance test bench according to claim 1, characterized in that: Rotating feet (12) are provided at the lower corners of the support platform (11).
4. A hydraulic valve performance test bench according to claim 1, characterized in that: The hydraulic assembly (2) includes a hydraulic pump (21) and an oil tank (22). The oil tank (22) is fixed to the lower end inside the support platform (11). The hydraulic pump (21) is installed on the upper end of the oil tank (22). The lower end of the first connecting pipe (43) is connected to the hydraulic pump (21). The lower end of the second connecting pipe (48) is connected to the oil tank (22).
5. The performance test bench for a hydraulic valve according to claim 1, wherein: The transverse movement assembly (3) includes a transverse movement base (31). The transverse movement base (31) is installed on the upper end of the support platform (11). Guide rails (311) are fixed to both sides of the transverse movement base (31). The transverse movement block (32) is movably installed on the upper end of the transverse movement base (31) through the guide rails (311).
6. The performance test bench for a hydraulic valve according to claim 5, characterized in that: A threaded rod (33) is movably installed on the transverse movement base (31). The transverse movement block (32) is installed on the outer side of the threaded rod (33). A drive motor (34) is installed on the left side of the transverse movement base (31). The drive motor (34) is connected to the threaded rod (33), and the drive motor (34) is a servo motor.