Performance test system and method for shunt valve structure

Abstract

The invention discloses a performance test system and method for a shunt valve structure. The performance test system comprises a dial indicator, a first driving device, an ejector rod, a screw and a second driving device, the first driving device is connected with the ejector rod, the second driving device is connected with the screw, the to-be-detected shunting valve is located between the ejector rod and the screw, the ejector rod is connected with one end of a core body in the to-be-detected shunting valve, the screw is connected with the other end of the core body in the to-be-detected shunting valve, and the dial indicator is in contact with the core body in the to-be-detected shunting valve. The displacement of the core body is measured through a dial indicator; an inlet of the to-be-tested shunting valve is provided with a first pressure gauge, a first outlet of the to-be-tested shunting valve is communicated with a second pressure gauge, a second outlet of the to-be-tested shunting valve is communicated with a second pressure gauge, and the system and the method can enable the shunting valve to meet performance index requirements of engine work.

Description

Technical Field

[0001] The invention belongs to the technical field of testing, and relates to a performance testing system and method for a diverter valve structure. Background Art

[0002] The original balance point in the performance test of the diverter valve is difficult to find directly, and in the hydraulic test process, as the diverter valve moves, the performance pressure does not match the corresponding position of the diverter valve. This causes repeated alignment of the matching point and grinding of the diverter valve's oil-dividing edge, causing the diverter valve's standard characteristic curve to fluctuate greatly within the tolerance range, and the pressure difference between the left and right branches of the characteristic curve is between the critical point. Currently, it does not meet the design requirements, but a mature test method cannot be implemented.

[0003] During the performance test of the diverter valve, it is difficult to accurately locate the middle position of the valve, resulting in large fluctuations in the pressure difference between the left and right sides of the valve, which in turn affects the accuracy of the left and right movement of the valve when it is working, making the oil-dividing edge of the valve not match the pressure value, which is shown in the hydraulic performance curve not meeting the requirements, that is, the diverter valve cannot meet the performance index requirements of the engine. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and to provide a performance test system and method for a diverter valve structure, which can enable the diverter valve to meet the performance index requirements of the engine operation.

[0005] To achieve the above object, the present invention discloses a performance test system for a diverter valve structure, comprising a dial indicator, a first drive device, a push rod, a screw and a second drive device;

[0006] The first driving device is connected to the push rod, the second driving device is connected to the screw, the shunt valve to be tested is located between the push rod and the screw, the push rod is connected to one end of the core body in the shunt valve to be tested, the screw is connected to the other end of the core body in the shunt valve to be tested, the dial indicator is in contact with the core body in the shunt valve to be tested, and the displacement of the core body is measured by the dial indicator;

[0007] A first pressure gauge is arranged at the inlet of the diverter valve to be tested, a second pressure gauge is connected to the first outlet of the diverter valve to be tested, and a third pressure gauge is connected to the second outlet of the diverter valve to be tested.

[0008] The further improvement of the performance test system of the diverter valve structure of the present invention is:

[0009] Furthermore, the first driving device includes a screw rod, a nut and a first bushing, one end of the screw rod is connected to the push rod, the other end of the screw rod passes through the first bushing and is connected to the nut, and the first bushing and the screw rod are threadedly connected.

[0010] Furthermore, the second driving device includes a pillar, a second bushing is provided on the pillar, a washer is provided at one end of the screw, and the other end of the screw passes through the second bushing.

[0011] Furthermore, a support block is arranged on the left side of the platform, and a support block is arranged on the right side of the platform. A through hole is arranged on the support block, and the first bushing is inserted into the through hole.

[0012] Furthermore, the pillars are arranged on the pillar blocks.

[0013] Furthermore, the other end of the screw rod passes through the first bushing and is connected to the nut via a nut.

[0014] Furthermore, a spring is arranged between the washer and the second bushing.

[0015] Furthermore, it also includes a data processor, the input end of the data processor is connected to the output end of the first pressure gauge, the output end of the second pressure gauge, the output end of the third pressure gauge and the output end of the dial indicator.

[0016] The invention discloses a performance test method of a flow diversion valve structure, comprising the following steps:

[0017] 1) Tighten the screw and gradually loosen it. When the left and right displacements are the same, when the change in pressure measured by the second pressure gauge and the third pressure gauge is less than the preset pressure, this position is the zero position of the test;

[0018] 2) Turn the screw to move it to the left. During this process, record the readings of the second pressure gauge and the third pressure gauge at preset intervals, then return to the zero position, and then move the screw to the right, and record the readings of the second pressure gauge and the third pressure gauge at preset intervals;

[0019] 3) Determine the difference in readings between the second pressure gauge and the third pressure gauge recorded at the same time. When the difference in readings is within the preset deviation range, it indicates that the diverter valve to be tested is qualified. Otherwise, the oil diverter side of the diverter valve to be tested is ground and repaired, and then go to step 1).

[0020] The further improvement of the performance test method of the diverter valve structure of the present invention is:

[0021] It also includes a data processor, the input end of the data processor is connected to the output end of the first pressure gauge, the output end of the second pressure gauge, the output end of the third pressure gauge and the output end of the dial indicator.

[0022] The present invention has the following beneficial effects:

[0023] During specific operation, the performance test system and method for the diverter valve structure described in the present invention moves the screw to the left. During this process, the readings of the second pressure gauge and the third pressure gauge are recorded at preset intervals, and then the screw is returned to the zero position. The screw is then moved to the right, and the readings of the second pressure gauge and the third pressure gauge are recorded at preset intervals. The reading difference between the second pressure gauge and the third pressure gauge recorded at the same time is judged. When the reading difference is within the preset deviation range, it indicates that the diverter valve to be tested is qualified. Otherwise, the oil-dividing edge of the diverter valve to be tested is ground and repaired, and then the data collection process is repeated until the reading difference is within the preset deviation range. This solves the problem that the hydraulic performance test of diverter valve structures is not easy to pass, provides methodology and factual basis for the processing of parts with the same structure, and is of great significance in improving technical capabilities and mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 The structural diagram of the present invention;

[0026] Among them, 1 is a platform, 2 is a support block, 3 is a pillar, 4 is a pillar block, 5 is a nut 5, 6 is a nut, 7 is a first bushing, 8 is a push rod, 9 is a diverter valve to be tested, 10 is a second bushing, 11 is a screw, 12 is a spring, and 13 is a washer. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms “include” and “comprises” indicate the presence of described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or collections thereof.

[0029] It should also be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0030] It should be further understood that the term "and / or" used in the present specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes these combinations. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present invention generally indicates that the associated objects are in an "or" relationship.

[0031] It should be understood that, although the terms first, second, third, etc. may be used to describe preset ranges, etc. in the embodiments of the present invention, these preset ranges should not be limited to these terms. These terms are only used to distinguish preset ranges from each other. For example, without departing from the scope of the embodiments of the present invention, the first preset range may also be referred to as the second preset range, and similarly, the second preset range may also be referred to as the first preset range.

[0032] The word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can usually be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] Various structural schematic diagrams of the embodiments disclosed in the present invention are shown in the accompanying drawings. These figures are not drawn to scale, and some details are magnified and some details may be omitted for the purpose of clear expression. The shapes of various regions and layers shown in the figures and the relative sizes and positional relationships therebetween are only exemplary, and may deviate in practice due to manufacturing tolerances or technical limitations, and those skilled in the art may additionally design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0035] As is known, the diverter valve (also called oil diverter valve, diverter valve) is a mechanical device, which is usually used in the fields of oil delivery system, lubrication system and aircraft engine cooling system. The following is a detailed introduction to the diverter valve: The diverter valve can divide an inlet fluid into two or more outlet fluids to achieve precise control and distribution of the fluid. It can not only divert the fluid, but also control the pressure and temperature of the fluid to ensure stable operation of the system.

[0036] The working principle of the diverter valve is: The principle of the diverter valve is based on fluid mechanics, which controls and distributes the flow of the fluid by increasing and reducing the resistance of the fluid. Its structure is simple and usually includes a main body, a piston and a fluid channel. In the cooling system of an aircraft engine, the diverter valve controls the oil pressure on the upper part of the turbine cooling control accessory according to the angle of the engine joystick or the command of the integrated regulator, thereby adjusting the flow of cooling air. Application scenarios: Diverter valves are widely used in various industries such as petroleum, chemical industry, metallurgy, power stations, nuclear industry, papermaking, aerospace, and shipbuilding. In aircraft engines, the diverter valve is an important part of the turbine cooling system, which is used to accurately control the flow of cooling air and ensure the normal operation of the turbine. Features and advantages: Precise control: The diverter valve can achieve precise control and distribution of the fluid to meet the needs of various complex systems.

[0037] Stable and reliable: The diverter valve has a simple structure, works stably and reliably, and can withstand harsh environments such as high pressure and high temperature for a long time; Strong adaptability: The diverter valve is suitable for various fluid media, including oil, water, gas, etc., and has a wide range of applicability.

[0038] In addition, to ensure the normal operation of the diverter valve, it needs to be maintained and serviced regularly. This includes cleaning the fluid channel, checking the sealing of the piston, replacing worn parts, etc. At the same time, it is also necessary to keep the environment around the diverter valve clean to prevent impurities from entering the fluid channel and causing blockage or damage; when installing the diverter valve, it is necessary to ensure that it is installed in the correct position and operate it strictly in accordance with the instructions. When using the diverter valve, it is necessary to observe its working status and discover and solve problems in time; the diverter valve is not an amplifier, and its function and working principle are obviously different from those of the amplifier, so they cannot be used interchangeably.

[0039] In summary, the diverter valve is an important fluid control device that is widely used in various fields. By understanding its working principle, application scenarios, characteristics and advantages, and maintenance methods, you can better use and maintain the diverter valve to ensure the stable operation of the system.

[0040] Embodiment 1

[0041] refer to Figure 1The performance test system of the diverter valve structure of the present invention includes a dial indicator, a first driving device, a push rod 8, a screw 11 and a second driving device; the first driving device is connected to the push rod 8, the second driving device is connected to the screw 11, the diverter valve 9 to be tested is located between the push rod 8 and the screw 11, and the push rod 8 is connected to one end of the core body in the diverter valve 9 to be tested, the screw 11 is connected to the other end of the core body in the diverter valve 9 to be tested, the dial indicator is in contact with the core body in the diverter valve 9 to be tested, and the displacement of the core body is measured by the dial indicator; a first pressure gauge is provided at the inlet of the diverter valve 9 to be tested, the first outlet of the diverter valve 9 to be tested is connected to a second pressure gauge, and the second outlet of the diverter valve 9 to be tested is connected to a third pressure gauge.

[0042] Specifically, the first driving device includes a screw rod, a nut 6 and a first bushing 7, one end of the screw rod is connected to the top rod 8, the other end of the screw rod passes through the first bushing 7 and is connected to the nut 6, and the first bushing 7 and the screw rod are threadedly connected; the second driving device includes a pillar 3, a second bushing 10 is provided on the pillar 3, a washer 13 is provided at one end of the screw 11, and the other end of the screw 11 passes through the second bushing 10; a support block 2 is provided on the left side of the platform 1, and a pillar block 4 is provided on the right side of the platform 1, a through hole is provided on the support block 2, and the first bushing 7 is inserted into the through hole.

[0043] As an implementation of the present invention, this embodiment also includes a data processor, and the input end of the data processor is connected to the output end of the first pressure gauge, the output end of the second pressure gauge, the output end of the third pressure gauge and the output end of the dial indicator.

[0044] Correspondingly, the present invention further discloses a performance test method for a shunt valve structure, which is implemented based on a performance test system for the shunt valve structure. The performance test system for the shunt valve structure includes a dial indicator, a first drive device, a push rod 8, a screw 11, and a second drive device. Specifically, the performance test method for the shunt valve structure includes the following steps:

[0045] 1) Tighten the screw and gradually loosen the screw 11. When the left and right displacements are the same, when the change in pressure measured by the second pressure gauge and the third pressure gauge is less than the preset pressure, this position is the zero position of the test;

[0046] 2) Turn the screw 11 to move it to the left. During this process, record the readings of the second pressure gauge and the third pressure gauge at preset intervals, then return to the zero position, and then move the screw 11 to the right, and record the readings of the second pressure gauge and the third pressure gauge at preset intervals;

[0047] 3) Determine the difference in readings between the second pressure gauge and the third pressure gauge recorded at the same time. When the difference in readings is within the preset deviation range, it means that the diverter valve 9 to be tested is qualified. Otherwise, the oil diverter edge of the diverter valve 9 to be tested is ground and repaired, and then go to step 1).

[0048] As an implementation of the present invention, this embodiment also includes a data processor, and the input end of the data processor is connected to the output end of the first pressure gauge, the output end of the second pressure gauge, the output end of the third pressure gauge and the output end of the dial indicator.

[0049] Embodiment 2

[0050] refer to Figure 1 The performance test system of the diverter valve structure of the present invention comprises a platform 1, a support block 2, a support pillar 3, a support pillar block 4, a nut 5, a nut 6, a first bushing 7, a push rod 8, a diverter valve to be tested 9, a second bushing 10, a screw 11, a spring 12 and a washer 13;

[0051] A support block 2 is provided on the left side of the platform 1, and a support block 4 is provided on the right side of the platform 1. A through hole is provided on the support block 2, and a first bushing 7 is inserted into the through hole. One end of the screw is connected to the push rod 8, and the other end of the screw passes through the first bushing 7 and is connected to the nut 6 via the nut 5; the first bushing 7 and the screw are threadedly connected.

[0052] The support block 4 is provided with a support 3 , and the support 3 is provided with a second bushing 10 . A washer 13 is provided at one end of a screw 11 , and the other end of the screw 11 passes through the second bushing 10 . A spring 12 is provided between the washer 13 and the second bushing 10 .

[0053] The diverter valve 9 to be tested is located between the push rod 8 and the screw 11, and the push rod 8 is connected to one end of the core body in the diverter valve 9 to be tested, and the screw 11 is connected to the other end of the core body in the diverter valve 9 to be tested, and the dial indicator is in contact with the core body in the diverter valve 9 to be tested, and the displacement of the core body is measured by the dial indicator.

[0054] A first pressure gauge is provided at the inlet of the diverter valve 9 to be tested, a second pressure gauge is connected to the first outlet of the diverter valve 9 to be tested, and a second pressure gauge is connected to the second outlet of the diverter valve 9 to be tested.

[0055] Correspondingly, the present invention also discloses a performance test method for a diverter valve structure, which is implemented based on a performance test system for the diverter valve structure. The performance test system for the diverter valve structure includes a platform 1, a support block 2, a support column 3, a support column 4, a nut 5, a nut 6, a first bushing 7, a push rod 8, a diverter valve to be tested 9, a second bushing 10, a screw 11, a spring 12 and a washer 13. Specifically, the performance test method for the diverter valve structure includes the following steps:

[0056] 1) Determine the zero point;

[0057] Tighten the screw and gradually loosen the screw 11. When the left and right displacements are the same, when the change in pressure measured by the second pressure gauge and the third pressure gauge is less than 0.05MPa, this position is the zero position of the test.

[0058] 2) Test data records;

[0059] Twist the screw 11 to move it to the left. During this process, record the readings of the second pressure gauge and the third pressure gauge at intervals of 0.05mm. The maximum movement of the screw 11 does not exceed 0.2mm. Then return to the zero point, and then move the screw 11 to the right at intervals of 0.05mm. Record the readings of the second pressure gauge and the third pressure gauge at intervals of 0.05mm. The maximum movement of the screw 11 does not exceed 0.2mm.

[0060] 3) Compare the data and grind the oil separation edge as needed;

[0061] Determine the indication difference between the second pressure gauge and the third pressure gauge recorded at the same time. When the indication difference is within the preset deviation range, it means that the diverter valve 9 to be tested is qualified. Otherwise, the oil separation edges K, T and N, M of the diverter valve 9 to be tested are ground to ensure that (L1-B1) / 2=0.27±0.03, (B2-L2) / 2=0.09±0.03. After the grinding, the diverter valve 9 to be tested is re-entered and compared according to step 1).

[0062] It should be noted that the present invention belongs to the category of general process technology and is widely used in the production of military products. It solves the problem that the hydraulic performance test of diverter valve structures is difficult to pass, and provides a methodology and factual basis for the processing of parts with the same structure. It is of great significance in improving technical capabilities and mass production.

[0063] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and disclosure of the invention. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0064] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0065] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A performance test system for a diverter valve structure, characterized in that: It comprises a dial indicator, a first driving device, a push rod (8), a screw (11) and a second driving device; The first driving device is connected to the push rod (8), the second driving device is connected to the screw (11), the flow-dividing valve (9) to be tested is located between the push rod (8) and the screw (11), the push rod (8) is connected to one end of the core body of the flow-dividing valve (9) to be tested, the screw (11) is connected to the other end of the core body of the flow-dividing valve (9) to be tested, the dial gauge is in contact with the core body of the flow-dividing valve (9) to be tested, and the displacement of the core body is measured by the dial gauge; A first pressure gauge is arranged at the inlet of the diverter valve (9) to be tested, a second pressure gauge is connected to the first outlet of the diverter valve (9) to be tested, and a third pressure gauge is connected to the second outlet of the diverter valve (9) to be tested.

2. The performance test system of the diverter valve structure according to claim 1, characterized in that: The first driving device comprises a screw rod, a nut (6) and a first bushing (7); one end of the screw rod is connected to a push rod (8); the other end of the screw rod passes through the first bushing (7) and is connected to the nut (6); the first bushing (7) and the screw rod are threadedly connected.

3. The performance test system of the diverter valve structure according to claim 2, characterized in that: The second driving device comprises a support (3), a second bushing (10) is provided on the support (3), a washer (13) is provided at one end of a screw (11), and the other end of the screw (11) passes through the second bushing (10).

4. The performance test system of the diverter valve structure according to claim 3, characterized in that: A support block (2) is arranged on the left side of the platform (1), and a support block (4) is arranged on the right side of the platform (1). A through hole is arranged on the support block (2), and a first bushing (7) is inserted into the through hole.

5. The performance test system of the diverter valve structure according to claim 4, characterized in that: The pillar (3) is arranged on the pillar block (4).

6. The performance test system of the diverter valve structure according to claim 2, characterized in that: The other end of the screw rod passes through the first bushing (7) and is connected to the nut (6) via the nut (5).

7. The performance test system of the diverter valve structure according to claim 1, characterized in that: A spring (12) is arranged between the washer (13) and the second bushing (10).

8. The performance test system of the diverter valve structure according to claim 1, characterized in that: It also includes a data processor, the input end of the data processor is connected to the output end of the first pressure gauge, the output end of the second pressure gauge, the output end of the third pressure gauge and the output end of the dial indicator.

9. A performance test method for a diverter valve structure, characterized in that: The performance test system of the diverter valve structure according to claim 3 comprises the following steps: 1) Tighten the screw rod and gradually loosen the screw (11). When the left and right displacements are the same, when the change in pressure measured by the second pressure gauge and the third pressure gauge is less than the preset pressure, this position is the zero position of the test; 2) Turn the screw (11) to move the screw (11) to the left, during which the readings of the second pressure gauge and the third pressure gauge are recorded at preset intervals, and then the screw (11) is returned to the zero position, and then the screw (11) is moved to the right, and the readings of the second pressure gauge and the third pressure gauge are recorded at preset intervals; 3) Determine the difference between the readings of the second pressure gauge and the third pressure gauge recorded at the same time. When the reading difference is within the preset deviation range, it means that the diverter valve (9) to be tested is qualified. Otherwise, the oil diverter edge of the diverter valve (9) to be tested is ground and repaired, and then go to step 1).

10. The performance test method of the diverter valve structure according to claim 9, characterized in that: It also includes a data processor, the input end of the data processor is connected to the output end of the first pressure gauge, the output end of the second pressure gauge, the output end of the third pressure gauge and the output end of the dial indicator.

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