A hydraulic valve performance test experiment table
Patent Information
- Application Number
- CN202521904408.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-04
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-09-04
AI Technical Summary
但是，现有的液压阀性能测试设备通用性较差，一种测试设备往往只能适用于特定类型或规格的液压阀，对于不同类型的液压阀，需要更换不同的测试工装，操作繁琐，测试效率低下
1、操作人员将液压阀放置在四分半圆夹持板的内表面之间，启动抽油泵，储油瓶存储液压油，抽油泵通过抽油管从储油瓶抽油，将液压油输送至系统中，止流阀用于控制油路通断，调节液压油流量，进而控制压力上升或下降速率，当液压缸的活塞液压杆伸出时，会对与活塞液压杆相连的四分半圆夹持板施加压力，使四分半圆夹持板对液压阀进行固定，夹持板滑轨分别固定于液压缸的顶端于液压夹持组件的正下方，作为四分半圆夹持板的运动导轨；夹持板滑槽则设计在上半部分的四分半圆夹持板上侧及下半部分的四分半圆夹持板下侧，与夹持板滑轨形成滑动配合，夹持板滑轨和夹持板滑槽的配合确保四分半圆夹持板在夹紧过程中沿直线平稳移动，避免晃动或卡滞；四分半圆夹持板的弧形设计能贴合圆柱形、方形带弧面不同外形的液压阀壳体，而夹持板滑轨与滑槽构成的导向结构，确保夹持板在移动过程中沿直线平稳合拢，使夹紧力均匀分布在阀体四周；通过液压夹持组件和液压缸，能够提供强大且可调的夹持力，确保液压阀在测试中保持稳定，配置合理的抽油泵和止流阀，使得液压系统快速响应，提升实验的效率和准确性，通过止流阀等构件的使用，能够有效防止液压油的意外回流，增加设备的安全性，夹持板滑轨和滑槽的设计使得操作过程灵活简单，减少了手动操作的复杂性，提升了用户体验。
Smart Images
Figure CN224835662U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic valve testing technology, specifically a hydraulic valve performance testing experimental platform. Background Technology
[0002] Hydraulic valves are key control components in hydraulic systems, and their performance directly affects the reliability, stability, and efficiency of the hydraulic system. To ensure the quality of hydraulic valves, precise testing of their various performance indicators is necessary during production, research and development, and use. However, existing hydraulic valve performance testing equipment has poor versatility; a single testing device is often only applicable to specific types or specifications of hydraulic valves. For different types of hydraulic valves, different testing fixtures are required, making operation cumbersome and testing inefficient. Therefore, those skilled in the art have provided a hydraulic valve performance testing platform to address the problems mentioned in the background section. Utility Model Content
[0003] The purpose of this invention is to provide a hydraulic valve performance testing platform to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: A hydraulic valve performance testing platform includes a hydraulic valve clamping platform, a test top frame, a hydraulic clamping assembly, and a hydraulic valve detector. The test top frame is welded and fixedly connected to the rear top of the hydraulic valve clamping platform. The hydraulic clamping assembly is clamped and fixedly connected to the left and right sides of the top of the hydraulic valve clamping platform. A hydraulic cylinder is welded and fixedly connected laterally to the middle of the top of the hydraulic clamping assembly. An oil storage bottle is welded and fixedly connected to the middle of the outer side of the hydraulic cylinder. An oil suction pipe is clamped and fixedly connected to the right end of the upper and lower sides of the oil storage bottle. An oil pump and a check valve are clamped and fixedly connected to the outer wall surface of the oil suction pipe. A piston hydraulic rod is slidably connected to the inner wall surface of the hydraulic cylinder. A quarter-and-a-half-circular clamping plate is welded and fixedly connected to the inner side of the piston hydraulic rod. A clamping plate slide rail is welded and fixedly connected laterally to the top of the hydraulic cylinder directly below the hydraulic clamping assembly. The outer surface of the clamping plate slide rail is slidably connected to the clamping plate groove on the outer side of the quarter-and-a-half-circular clamping plate.
[0005] As a further embodiment of this utility model: the bottom right side of the experimental test top frame is electrically fixedly connected to the hydraulic valve detector by a bolt, and the bottom middle of the hydraulic valve detector is electrically fixedly connected to the oil inlet pipe branch sensing cable.
[0006] As a further improvement of this utility model, a hydraulic valve is fixedly connected between the inner surfaces of the quarter-and-half-circular clamping plates.
[0007] As a further embodiment of this utility model: the outer surface of the end of the oil inlet pipe bifurcation sensing cable is engaged and fixedly connected to the oil inlet pipe of the hydraulic valve on the inner surface of the oil inlet port.
[0008] As a further improvement of this utility model, the hydraulic valve circuit pipe is fixedly connected to the inner surface of the other end of the hydraulic valve through the penetration point.
[0009] As a further embodiment of this utility model: the upper and lower ends of the oil inlet pipe bifurcation sensing cable are electrically fixedly connected to a pressure sensor and a flow sensor respectively inside the hydraulic valve oil inlet pipe.
[0010] As a further improvement of this utility model, the oil inlet port of the hydraulic valve is fixedly connected to the oil inlet pipe throttle valve by a locking bolt.
[0011] As a further improvement of this utility model, the hydraulic valve circuit pipe is fixedly connected to the reversing valve by a locking bolt at the oil outlet of the circuit pipe.
[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The operator places the hydraulic valve between the inner surfaces of the quarter-and-half-circular clamping plates, starts the oil pump, and the oil reservoir stores hydraulic oil. The oil pump draws oil from the reservoir through the oil pipe and delivers the hydraulic oil to the system. The check valve is used to control the oil circuit opening and closing, regulate the hydraulic oil flow, and thus control the rate of pressure rise or fall. When the piston rod of the hydraulic cylinder extends, it applies pressure to the quarter-and-half-circular clamping plate connected to the piston rod, fixing the hydraulic valve in place. The clamping plate slide rails are fixed to the top of the hydraulic cylinder directly below the hydraulic clamping assembly, serving as the movement guide rails for the quarter-and-half-circular clamping plates. The clamping plate grooves are designed on the upper side of the upper half of the quarter-and-half-circular clamping plate and the lower side of the lower half, forming a sliding fit with the clamping plate slide rails. The fit between the clamping plate slide rails and the clamping plate grooves ensures the four-and-half-circular clamping plate's movement. The semi-circular clamping plate moves smoothly along a straight line during clamping, avoiding shaking or jamming. The arc design of the quarter-circular clamping plate can fit the cylindrical and square hydraulic valve bodies with different curved surfaces. The guide structure formed by the clamping plate slide rail and groove ensures that the clamping plate closes smoothly along a straight line during movement, so that the clamping force is evenly distributed around the valve body. Through the hydraulic clamping components and hydraulic cylinders, a strong and adjustable clamping force can be provided to ensure that the hydraulic valve remains stable during testing. The configuration of a reasonable oil pump and check valve enables the hydraulic system to respond quickly, improving the efficiency and accuracy of the experiment. The use of components such as check valves can effectively prevent accidental backflow of hydraulic oil, increasing the safety of the equipment. The design of the clamping plate slide rail and groove makes the operation process flexible and simple, reducing the complexity of manual operation and improving the user experience.
[0013] 2. The inlet throttle valve is used to regulate the oil flow rate into the hydraulic valve. During the test, different flow conditions can be set by adjusting the inlet throttle valve to evaluate the performance of the hydraulic valve under different oil flow rates. The return pipe directional valve is used to change the direction of oil flow. During the test, different working states can be simulated by controlling the return pipe directional valve to evaluate the response and stability of the return pipe directional valve under various working conditions. It can simulate working conditions with different oil flow rates and working states to comprehensively evaluate the performance of the hydraulic valve. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of a hydraulic valve performance testing bench.
[0015] Figure 2 This is a schematic diagram of the hydraulic clamping assembly in a hydraulic valve performance testing bench.
[0016] Figure 3 This is a schematic diagram of the structure of a hydraulic valve detector in a hydraulic valve performance testing bench.
[0017] Figure 4 This is a planar schematic diagram of a hydraulic valve being tested in a hydraulic valve performance testing bench.
[0018] Figure 5 This is a magnified structural diagram of point A in a hydraulic valve performance testing test bench.
[0019] In the diagram: 1-Hydraulic valve clamping platform, 2-Experimental test top frame, 3-Hydraulic clamping assembly, 4-Hydraulic cylinder, 5-Oil reservoir, 6-Oil extraction pipe, 7-Oil extraction pump, 8-Stop valve, 9-Piston hydraulic rod, 10-Quarter-half-circular clamping plate, 11-Clamping plate slide rail, 12-Clamping plate slide groove, 13-Hydraulic valve detector, 14-Oil inlet pipe bifurcation sensor cable, 15-Hydraulic valve inlet pipe, 16-Hydraulic valve, 17-Hydraulic valve circuit pipe, 18-Pressure sensor, 19-Flow sensor, 20-Oil inlet pipe throttle valve, 21-Circuit pipe reversing valve. Detailed Implementation
[0020] Please see Figures 1-5In this embodiment of the utility model, a hydraulic valve performance testing platform includes a hydraulic valve clamping platform 1, a test top frame 2, a hydraulic clamping assembly 3, a hydraulic cylinder 4, an oil storage bottle 5, an oil extraction pipe 6, an oil extraction pump 7, a stop valve 8, a piston hydraulic rod 9, a quarter-circular clamping plate 10, a clamping plate slide rail 11, a clamping plate slide groove 12, a hydraulic valve detector 13, an oil inlet pipe bifurcation sensing cable 14, a hydraulic valve oil inlet pipe 15, a hydraulic valve 16, a hydraulic valve circuit pipe 17, a pressure sensor 18, a flow sensor 19, an oil inlet pipe throttle valve 20, and a circuit pipe reversing valve 21. The experimental test top frame 2 is welded and fixedly connected to the rear side of the top of the valve clamping platform 1. The hydraulic clamping assembly 3 is fixedly connected to the left and right sides of the top of the hydraulic valve clamping platform 1. A hydraulic cylinder 4 is welded and fixedly connected laterally to the middle of the top of the hydraulic clamping assembly 3. An oil storage bottle 5 is welded and fixedly connected to the middle of the outer side of the hydraulic cylinder 4. An oil suction pipe 6 is fixedly connected to the upper and lower right ends of the oil storage bottle 5. An oil pump 7 and a check valve 8 are fixedly connected to the outer wall surface of the oil suction pipe 6. A piston hydraulic rod 9 is connected to the inner wall surface of the hydraulic cylinder 4 via a piston sliding motion. The inner side of the piston hydraulic rod 9 is welded... A quarter-and-a-half-circular clamping plate 10 is fixedly connected. The top of the hydraulic cylinder 4 is horizontally welded and fixedly connected to the clamping plate slide rail 11 directly below the hydraulic clamping assembly 3. The outer surface of the clamping plate slide rail 11 slides along the outer side of the quarter-and-a-half-circular clamping plate 10, connected to the clamping plate slide groove 12. A hydraulic valve detector 13 is electrically fixedly connected to the bottom right side of the experimental test top frame 2 via bolts. An oil inlet pipe bifurcation sensing cable 14 is electrically fixedly connected to the middle of the bottom end of the hydraulic valve detector 13. A hydraulic valve 16 is locked and fixedly connected between the inner surfaces of the quarter-and-a-half-circular clamping plate 10. The oil inlet pipe bifurcation sensing cable... The outer surface of the end of 14 is engaged and fixedly connected to the inner surface of the oil inlet of the hydraulic valve 16 to the hydraulic valve inlet pipe 15. The inner surface of the other end of the hydraulic valve 16 is engaged and fixedly connected to the hydraulic valve circuit pipe 17. The upper and lower sides of the end of the inlet pipe branch sensing cable 14 are electrically fixedly connected to the pressure sensor 18 and the flow sensor 19 respectively inside the hydraulic valve inlet pipe 15. The oil inlet of the hydraulic valve inlet pipe 15 is engaged and fixedly connected to the inlet pipe throttle valve 20 by bolts. The outlet of the hydraulic valve circuit pipe 17 is engaged and fixedly connected to the circuit pipe directional valve 21 by bolts.
[0021] The working principle of this utility model is as follows: When using this utility model, firstly, the operator places the hydraulic valve 16 between the inner surfaces of the quarter-and-half-circular clamping plate 10, starts the oil pump 7, stores hydraulic oil in the oil reservoir 6, and the oil pump 7 draws oil from the oil reservoir 5 through the oil pipe 6, delivering the hydraulic oil to the system. The check valve 8 is used to control the oil circuit opening and closing, regulate the hydraulic oil flow, and thus control the rate of pressure increase or decrease. When the piston hydraulic rod 9 of the hydraulic cylinder 4 extends, it applies pressure to the quarter-and-half-circular clamping plate 10 connected to the piston hydraulic rod 9, causing the quarter-and-half-circular clamping plate 10 to fix the hydraulic valve 16. The plate guide rails 11 are fixed to the top of the hydraulic cylinder 4 directly below the hydraulic clamping assembly 3, serving as the motion guide rails for the quarter-and-half-circular clamping plate 10. The clamping plate grooves 12 are designed on the upper side of the upper half-and-half-circular clamping plate 10 and the lower side of the lower half-and-half-circular clamping plate 10, forming a sliding fit with the clamping plate guide rails 11. The fit between the clamping plate guide rails 11 and the clamping plate grooves 12 ensures that the quarter-and-half-circular clamping plate 10 moves smoothly along a straight line during clamping, avoiding shaking or jamming. Then, the hydraulic valve detector 13, as the core node of the test oil circuit, integrates the inlet pipe throttle valve 20 and the return pipe reversing valve 21. The hydraulic circuit mode is automatically switched according to the preset test program. The hydraulic valve inlet pipe 15 is connected to the inner surface of the inlet port of the hydraulic valve 16. The hydraulic valve detector 13 is inserted into the right side of the inlet pipe 15 through the inlet pipe bifurcation sensing cable 14 to complete the connection. The signals of the pressure sensor 18 and the flow sensor 19 are collected synchronously through the inlet pipe bifurcation sensing cable 14. The opening pressure, flow rate, differential pressure characteristics, and leakage performance parameters of the hydraulic valve 16 are calculated in real time, and dynamic curves of pressure and current response are generated. The hydraulic valve inlet pipe 15 is used to deliver hydraulic oil to the hydraulic valve 16, and the hydraulic valve 16 is responsible for control. The hydraulic system controls the flow direction and flow rate of hydraulic oil. The hydraulic valve circuit pipe 17 returns the hydraulic oil to the external oil tank. During the test, the coordination of these pipes ensures that the hydraulic system can operate normally. The inlet pipe throttle valve 20 is used to regulate the flow rate of oil entering the hydraulic valve 16. During the test, different flow conditions can be set by adjusting the inlet pipe throttle valve 20 to evaluate the performance of the hydraulic valve 16 under different oil flow rates. The circuit pipe directional valve 21 is used to change the direction of oil flow. During the test, different working states can be simulated by controlling the circuit pipe directional valve 21 to evaluate the response and stability of the circuit pipe directional valve 21 under various working conditions.
[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A hydraulic valve performance testing platform, comprising a hydraulic valve clamping platform (1), a testing top frame (2), a hydraulic clamping assembly (3), and a hydraulic valve detector (13), characterized in that, The experimental test top frame (2) is welded and fixedly connected to the rear side of the top of the hydraulic valve clamping platform (1). The hydraulic clamping assembly (3) is fixedly connected to the left and right sides of the top of the hydraulic valve clamping platform (1). The hydraulic cylinder (4) is welded and fixedly connected to the middle of the top of the hydraulic clamping assembly (3). The oil storage bottle (5) is welded and fixedly connected to the middle of the outer side of the hydraulic cylinder (4). The oil suction pipe (6) is fixedly connected to the right end of the upper and lower sides of the oil storage bottle (5). The outer wall surface of the oil suction pipe (6) is fixedly connected to the oil suction pipe (6). The oil pump (7) and the stop valve (8) are respectively locked and fixed at the through-hole. The piston slides and connects the piston hydraulic rod (9) on the inner wall surface of the hydraulic cylinder (4). The quarter-and-half-circular clamping plate (10) is welded and fixedly connected to the inner side of the piston hydraulic rod (9). The clamping plate slide rail (11) is welded and fixedly connected to the top of the hydraulic cylinder (4) directly below the hydraulic clamping assembly (3) in the horizontal direction. The outer surface of the clamping plate slide rail (11) slides and connects to the clamping plate slide groove (12) on the outer side of the quarter-and-half-circular clamping plate (10).
2. The hydraulic valve performance testing bench according to claim 1, characterized in that, The bottom right side of the experimental test frame (2) is electrically fixedly connected to the hydraulic valve detector (13), and the bottom middle of the hydraulic valve detector (13) is electrically fixedly connected to the oil inlet pipe branch sensing cable (14).
3. The hydraulic valve performance testing bench according to claim 2, characterized in that, The hydraulic valve (16) is fixedly connected between the inner surfaces of the quarter-and-half-circular clamping plate (10).
4. The hydraulic valve performance testing bench according to claim 3, characterized in that, The outer surface of the end of the inlet pipe bifurcation sensing cable (14) is engaged and fixedly connected to the inlet pipe (15) of the hydraulic valve (16) by engaging with the inner surface of the inlet port.
5. The hydraulic valve performance testing bench according to claim 3, characterized in that, The hydraulic valve (16) is fixedly connected to the hydraulic valve circuit pipe (17) by engaging the inner surface of the other end of the through-hole.
6. The hydraulic valve performance testing bench according to claim 4, characterized in that, The pressure sensor (18) and flow sensor (19) are electrically fixedly connected to the upper and lower sides of the end of the oil inlet pipe branch sensing cable (14) inside the hydraulic valve oil inlet pipe (15), respectively.
7. The hydraulic valve performance testing bench according to claim 4, characterized in that, The hydraulic valve inlet pipe (15) is fixedly connected to the inlet pipe throttle valve (20) by a locking bolt at the inlet port.
8. The hydraulic valve performance testing bench according to claim 5, characterized in that, The hydraulic valve circuit pipe (17) is fixedly connected to the reversing valve (21) by a bolt at the oil outlet of the circuit pipe (17).