A life testing station for high frequency valves

Abstract

The application relates to a life detection platform for a high-frequency valve, which comprises a box body, a vibration table arranged in the box body, a plurality of parallel slide rails arranged on the vibration table, a mounting seat slidingly arranged on the slide rails and used for mounting a valve body to be detected, a sliding groove matched with the slide rails and arranged on the mounting seat, the mounting seat being limited on the slide rails through the sliding groove, a threaded hole penetrating through the mounting seat and communicated with the sliding groove, and a bolt screwed into the threaded hole and abutting against the slide rails. The application has the advantages that the vibration table can more truly and strictly simulate the compound stress working condition of the valve body in the actual working environment, the effectiveness and reliability of the test are improved, the actual service life of the product can be more accurately predicted, potential failure modes can be found in advance, and the effects of the overall structural rigidity and the vibration resistance of the valve body can be effectively verified.

Description

Technical Field

[0001] This application relates to the technical field of high-frequency valve testing equipment, and in particular to a life testing platform for high-frequency valves. Background Technology

[0002] Currently, high-frequency solenoid valve life testing benches are industrial devices specifically designed to evaluate the durability of high-frequency solenoid valves. Their core function is to simulate high-frequency opening and closing conditions and accurately record key parameters, testing the durability and reliability of the high-frequency solenoid valve under repeated start-stop and high-speed switching conditions. Through long-term, high-frequency cyclic operation, the test verifies whether the valve can still function normally after reaching a specified number of operations. The total number of cycles from the start of operation to failure, such as leakage, slow response, or inability to open / close, is recorded to assess its service life.

[0003] The core components of the testing station include: a drive control system, employing a high-precision signal generator or PLC control unit to generate high-frequency pulse signals and control the switching frequency and duty cycle of the solenoid valves; a pressure and media supply system, including an air source or hydraulic pump station to provide a stable pressure source; and a data acquisition system, including pressure sensors, flow meters, displacement sensors, current / voltage sensors, temperature sensors, etc., as well as a high-speed data acquisition card for real-time recording of test data.

[0004] Many high-frequency valves, such as automotive engine injectors and hydraulic valves for construction machinery, are not in a "static" environment in actual operation, but are exposed to mechanical vibration for a long time. The aforementioned test bench cannot simulate the real vibration environment. If the life test does not consider vibration factors, the test results may be too idealized and cannot reflect the reliability of the valve under real working conditions. Utility Model Content

[0005] This application provides a life testing platform for high-frequency valves, which can more accurately predict the actual service life of the product, detect potential failure modes in advance, and effectively test the overall structural rigidity and vibration resistance of the valve body.

[0006] The high-frequency valve life testing station provided in this application adopts the following technical solution: A life testing platform for a high-frequency valve includes a housing, a vibration table inside the housing, multiple parallel slide rails on the vibration table, a mounting seat slidably mounted on the slide rails, and a valve body to be tested mounted on the mounting seat; the mounting seat has a sliding groove that interlocks with the slide rails, and the mounting seat is limited on the slide rails by the sliding grooves; the mounting seat has a threaded hole that communicates with the sliding grooves, and the threaded hole is used for screwing in a bolt and pressing it against the slide rails.

[0007] Preferably, the mounting base is provided with a limiting frame, and the limiting frame is divided into multiple independent limiting grooves, and the valve body to be tested is respectively inserted and limited in its respective corresponding limiting groove.

[0008] Preferably, a pressure plate is mounted on the limiting frame, and fasteners are threaded through the pressure plate. The pressure plate is used to limit and press the valve body to be tested into its respective limiting groove; the fasteners are screwed and fixed on the limiting frame.

[0009] Preferably, the pressure plate is provided with a plurality of limiting posts, which are inserted into the limiting grooves; the mounting base is provided with insertion holes that are one to one with the limiting posts, and the limiting posts are used to pass through the valve body to be tested, with the ends of the limiting posts inserted into their respective insertion holes.

[0010] Preferably, the bottom wall of the limiting groove is provided with a first through hole, and the outer side wall of the mounting base is provided with a second through hole that communicates with the first through hole.

[0011] Preferably, the bottom wall of the limiting groove is further provided with a third through hole, and the outer side wall of the mounting base is provided with a fourth through hole that communicates with the third through hole; the second through hole and the fourth through hole are respectively located on the outer side walls of the mounting base that are opposite to each other.

[0012] Preferably, the bottom wall of the limiting groove is further provided with a fifth through hole, and the mounting base has a sixth through hole, the fifth through hole and the sixth through hole are interconnected.

[0013] In summary, this application includes at least one of the following beneficial technical effects: Vibration tables can more realistically and rigorously simulate the combined stress conditions of valve bodies in actual working environments, thereby improving the effectiveness and reliability of testing, more accurately predicting the actual service life of products, and discovering potential failure modes in advance. They can effectively test the overall structural stiffness and vibration resistance of valve bodies. The valve body is further limited and fixed in the limiting groove by the limiting post, which can ensure the accuracy of the installation position of the valve body to be tested and effectively prevent the valve body from deviating from the installation position. In addition, it can also realize the quick installation and fixing of multiple valve bodies, improving the efficiency of disassembly and assembly. The slide rail design allows for easy adjustment of the mounting position, enabling simultaneous testing of multiple products, thus improving practicality and testing efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram highlighting a portion of the shaking table's structure; Figure 3 yes Figure 2 A schematic diagram of a partial structural explosion; Figure 4 This is an exploded view of the partial structure from the bottom of the mounting base; Figure 5 This is a schematic diagram highlighting a portion of the limiting frame's structure; Figure 6 This is a cross-sectional schematic diagram highlighting a portion of the internal structure of the mounting base.

[0015] Explanation of reference numerals in the attached drawings: 1. Box body; 2. Vibration table; 3. Slide rail; 4. Mounting base; 40. Slide groove; 41. Threaded hole; 42. Insertion hole; 43. First through hole; 44. Second through hole; 45. Third through hole; 46. Fourth through hole; 47. Fifth through hole; 48. Sixth through hole; 5. Limiting bracket; 50. Limiting groove; 6. Pressure plate; 60. Limiting post; 7. Fastener. Detailed Implementation

[0016] The present application will be further described in detail below with reference to the accompanying drawings.

[0017] This application discloses a life testing station for high-frequency valves.

[0018] Reference Figure 1 , Figure 2 The high-frequency valve life testing bench includes a housing 1, inside which are two sets of vibration tables 2, also known as vibration exciters or vibration generators. It is a device that uses electric, electro-hydraulic, piezoelectric, or other principles to obtain mechanical vibration. Its principle is to input an excitation signal into a coil placed in a magnetic field to drive the worktable connected to the coil. Electric vibration tables are mainly used for vibration measurements above 10Hz, and can excite a maximum pressure of 200N. In the frequency range below 20Hz, electro-hydraulic vibration tables are often used, where the nature of the vibration signal is controlled by an electric servo system. For different test objects and technical specifications, different structures and excitation ranges of vibration tables 2 should be selected. Vibration tables 2 can more realistically and rigorously simulate the combined stress conditions of the valve body in the actual working environment, thereby improving the effectiveness and reliability of the test, more accurately predicting the actual service life of the product, and discovering potential failure modes in advance.

[0019] like Figure 3 , Figure 4As shown, multiple parallel slide rails 3 are fixedly installed on the upper surface of one set of vibration tables 2. Mounting seats 4 are slidably mounted on the slide rails 3. The number of mounting seats 4 can be increased or decreased according to actual testing requirements. The top of the mounting seat 4 is used to mount the valve body to be tested. The bottom of the mounting seat 4 is provided with a groove 40 whose shape matches that of the slide rail 3. The groove 40 and the slide rail 3 are interlocked. The mounting seat 4 is limited and slidably mounted on the slide rail 3 by the groove 40. Two threaded holes 41, communicating with the groove 40, are symmetrically arranged on the left and right sides of the mounting seat 4. The threaded holes 41 are used for bolts to be screwed in vertically and pressed against the slide rail 3. The mounting seat 4 is fixed to the outside of the slide rail 3 by bolts.

[0020] like Figure 4 , Figure 5 As shown, a limit frame 5 is fixedly installed on the top outer wall of the mounting base 4. The limit frame 5 is divided into multiple independent limit grooves 50. The valve body to be tested is inserted and limited in its respective corresponding limit groove 50 along the vertical direction. The limit grooves 50 are arranged sequentially at intervals along the length of the slide rail 3.

[0021] like Figure 3 , Figure 4 As shown, a pressure plate 6 is detachably mounted on the top of the limiting frame 5. Fasteners 7 are threaded through the pressure plate 6 in the vertical direction. In this embodiment, the fasteners 7 are bolts. The pressure plate 6 is used to limit and press each valve body to be tested together within its respective limiting groove 50. The pressure plate 6 is tightened and fixed to the top of the limiting frame 5 by the fasteners 7.

[0022] like Figure 3 , Figure 4 As shown, multiple sets of limiting posts 60 are fixedly installed on the side wall of the pressure plate 6 facing the limiting groove 50. The length of the limiting posts 60 extends along the direction in which the valve body is inserted into the limiting groove 50. Each set of limiting posts 60 is inserted into its corresponding limiting groove 50. The top outer wall of the mounting base 4 is provided with insertion holes 42 corresponding to the limiting posts 60. The limiting posts 60 are used to pass through their respective corresponding valve bodies to be tested in the vertical direction, and finally the ends of the limiting posts 60 are inserted into the corresponding insertion holes 42. The limiting posts 60 further limit and fix the valve body in the limiting groove 50, thereby ensuring the accuracy of the installation position of the valve body to be tested and effectively preventing the valve body from deviating from its installation position. This enables the rapid installation and fixing of multiple valve bodies, improving the efficiency of assembly and disassembly.

[0023] like Figure 5 , Figure 6As shown, the bottom wall of the limiting groove 50 is provided with a first through hole 43, which communicates with the first vent hole on the valve body. The outer wall of the mounting base 4 is provided with a second through hole 44 that communicates with the first through hole 43. The bottom wall of the limiting groove 50 is also provided with a third through hole 45 that communicates with the second vent hole on the valve body. The outer wall of the mounting base 4 is provided with a fourth through hole 46 that communicates with the third through hole 45. The second through hole 44 and the fourth through hole 46 are located on the outer walls of the mounting base 4 that are opposite to each other.

[0024] like Figure 5 , Figure 6 As shown, the bottom wall of the limiting groove 50 is also provided with a fifth through hole 47 that communicates with the third exhaust hole on the valve body, and a sixth through hole 48 is provided on the mounting base 4. Each fifth through hole 47 is connected to the sixth through hole 48. The length of the sixth through hole 48 extends along the length direction of the slide rail 3.

[0025] The implementation principle is as follows: the vibration table 2 can more realistically and rigorously simulate the combined stress conditions of the valve body in the actual working environment, thereby improving the effectiveness and reliability of the test, more accurately predicting the actual service life of the product, and discovering potential failure modes in advance. The valve body is further limited and fixed within the limiting groove 50 by the limiting post 60, thus ensuring the accuracy of the installation position of the valve body under test and effectively preventing deviation of the valve body's installation position. It enables the rapid installation and fixing of multiple valve bodies, improving disassembly and assembly efficiency.

[0026] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A life testing platform for a high-frequency valve, comprising a housing (1), characterized in that: The housing (1) is equipped with a vibration table (2), and the vibration table (2) is equipped with multiple parallel slide rails (3). A mounting seat (4) is slidably mounted on the slide rails (3). The mounting seat (4) is used to mount the valve body to be tested. The mounting seat (4) is equipped with a slide groove (40) that is interlocked with the slide rails (3). The mounting seat (4) is limited on the slide rails (3) by the slide groove (40). The mounting seat (4) is provided with a threaded hole (41) that is connected to the slide groove (40). The threaded hole (41) is used for screwing in bolts and pressing them against the slide rails (3).

2. The life testing station for high-frequency valves according to claim 1, characterized in that: The mounting base (4) is provided with a limiting frame (5), and the limiting frame (5) is divided into multiple independent limiting grooves (50). The valve body to be tested is inserted and limited in its respective corresponding limiting groove (50).

3. The life testing station for high-frequency valves according to claim 2, characterized in that: The limiting frame (5) is equipped with a pressure plate (6), and a fastener (7) is threaded through the pressure plate (6). The pressure plate (6) is used to limit and press the valve body to be tested into its respective limiting groove (50). The fastener (7) is screwed and fixed on the limiting frame (5).

4. The life testing station for high-frequency valves according to claim 3, characterized in that: The pressure plate (6) is provided with a plurality of limiting posts (60), which are inserted into the limiting groove (50); the mounting base (4) is provided with insertion holes (42) that are one-to-one with the limiting posts (60), the limiting posts (60) are used to pass through the valve body to be tested, and the ends of the limiting posts (60) are inserted into their respective insertion holes (42).

5. The life testing station for high-frequency valves according to claim 2, characterized in that: The bottom wall of the limiting groove (50) is provided with a first through hole (43), and the outer wall of the mounting base (4) is provided with a second through hole (44) that communicates with the first through hole (43).

6. The life testing station for high-frequency valves according to claim 5, characterized in that: The bottom wall of the limiting groove (50) is also provided with a third through hole (45), and the outer wall of the mounting base (4) is provided with a fourth through hole (46) that communicates with the third through hole (45); the second through hole (44) and the fourth through hole (46) are respectively located on the outer walls of the mounting base (4) that are opposite to each other.

7. The life testing station for high-frequency valves according to claim 6, characterized in that: The bottom wall of the limiting groove (50) is also provided with a fifth through hole (47), and the mounting base (4) is provided with a sixth through hole (48), and the fifth through hole (47) and the sixth through hole (48) are interconnected.

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