Spring yield performance detection device and use method

Abstract

The invention relates to the technical field of oil and gas exploitation, and provides a spring yield performance detection device and a use method. One end of the elastic element is connected with the rack, and the other end of the elastic element is provided with a limiting structure; the compression element is connected with the rack, the compression element is located on the side, away from the elastic element, of the limiting structure, the area between the compression element and the limiting structure is used for installing a to-be-tested spring, the position of the compression element in the telescopic direction of the elastic element is adjustable, and therefore the to-be-tested spring is compressed or loosened. The technical problem that a spring yield performance detection tool lacks in the prior art can be solved.

Description

Technical Field

[0001] This invention relates to the field of oil and gas extraction technology, and in particular to a spring yield performance testing device and its usage method. Background Technology

[0002] In the field of oil and gas extraction technology, with the continuous development of marine high-sulfur gas fields, the risk of personal injury from sulfur-containing natural gas leaks has increased exponentially. To improve the inherent safety of sulfur-containing gas field extraction and transportation processes, the degree of automation in these processes is becoming increasingly sophisticated. This effectively solves the problem of automatic shutdown and pressure relief in cases of sulfur-containing natural gas leaks and abnormal pressure, reducing the risk of personnel directly entering toxic and hazardous areas for emergency response. In addition to software control, the automated control system also requires hardware support to meet automation functions. Gas field automation hardware mainly employs remote regulating valves, emergency shut-off valves, and emergency venting and pressure relief valves. However, to achieve automated hardware control, solenoid valves are primarily used to energize and de-energize gas-controlled and hydraulic-controlled channels, thereby achieving the opening and closing of hydraulic and gas-controlled valves.

[0003] However, during routine functional testing of the automatic control system, the relay valve (reset valve) spring frequently fails to return or returns slowly, resulting in the inability to meet the requirements for rapid pressure relief during emergency situations. After disassembling and analyzing this recurring problem, and combining it with the failure analysis results of two other three-way valves over the years, the applicant found that 70% of the problems are related to the spring's yield performance (elastic constant). Therefore, the yield performance of the spring is crucial to the safety of oil and gas well stations. However, the current operating procedure simply replaces springs of the same specification and model directly. If the replacement does not meet the requirements, it is replaced again, without considering testing the spring's yield performance, and there is a lack of tools for testing spring yield performance. Therefore, it is necessary to design a spring yield testing tool to test the yield performance of different springs, thereby quickly resolving and troubleshooting spring failures in abnormal valves. Summary of the Invention

[0004] The purpose of this invention is to overcome the technical problem of the lack of spring yield performance testing tools in the prior art, and to provide a spring yield performance testing device and its usage method.

[0005] In a first aspect, the present invention provides a spring yield performance testing device, comprising:

[0006] frame;

[0007] The elastic element is connected to the frame at one end, and a limit structure is provided at the other end of the elastic element.

[0008] The compression element is connected to the frame and is located on the side of the limiting structure away from the elastic element. The area between the compression element and the limiting structure is used to install the spring to be tested. The position of the compression element along the extension and retraction direction of the elastic element is adjustable, thereby compressing or releasing the spring to be tested.

[0009] The frame includes, but is not limited to, column-shaped members and plate-shaped members, as long as they can be used to install elastic and compressive elements.

[0010] Elastic elements include, but are not limited to, helical springs, rubber blocks, disc springs, etc.

[0011] The position of the compression element is adjustable. This can be achieved, but is not limited to, by using movable structures such as slide rails, lead screws, planar connecting rods, and oblong holes to movably connect the compression element to the frame, or by setting multiple installation positions for the compression element on the frame along the extension and retraction direction of the elastic element, and adjusting the position of the compression element by changing the installation position.

[0012] The limiting structure is used to install the spring to be tested, and its specific structural form includes, but is not limited to, a mounting groove and / or limiting protrusion that match the cross-sectional shape of the spring to be tested.

[0013] The spring yield performance testing device in this scheme first installs the spring to be tested between the limiting structure and the compression element when testing the yield performance of the spring under test. Then, the position of the compression element is adjusted so that the compression element compresses the spring under test. Since one end of the spring under test is in contact with the limiting structure of the elastic element during compression, the elastic element is also compressed, and the elastic force generated by the elastic element is equal to the elastic force generated by the spring under test. The deformation of the elastic element is measured, and combined with the yield performance of the elastic element, the elastic force generated by the elastic element can be calculated, thus obtaining the elastic force generated by the spring under test. Then, the deformation of the spring under test is measured, and the yield performance of the spring under test can be deduced from the elastic force and deformation of the spring under test, thereby determining whether the yield performance of the spring under test meets the target yield performance requirements.

[0014] As can be seen from the above, the spring yield performance testing device of this scheme can compress the spring and elastic element under test by the compression element, thereby causing the spring and elastic element under test to deform respectively. By observing and measuring the amount of deformation, it can be determined whether the yield performance of the spring under test meets the target yield performance requirements. Moreover, since the amount of deformation can be obtained by various means that do not rely on electronic components, such as rulers, tape measures, and visual judgment, this scheme has the advantages of simple structure, reliable operation, and low cost compared with existing yield performance testing devices that rely on various electronic components such as stress sensors and strain sensors. It is also easier to meet the fire prevention and explosion protection requirements of oil and gas extraction sites.

[0015] Preferably, the yield properties of the compression element are matched with the target yield properties.

[0016] The target yield performance is the yield performance required for the spring under test to function normally in the automatic control system.

[0017] This solution recommends setting the yield performance of the compression element to match the target yield performance. If the yield performance of the spring under test also matches the target yield performance, then when the elastic element and the spring under test are compressed together by the compression element, the elastic force generated by the elastic element is equal to the elastic force generated by the spring under test, so the deformation of the elastic element and the spring under test should also be equal. Conversely, if the yield performance of the spring under test is greater than or less than the target yield performance, the deformation of the elastic element will also be greater than or less than the deformation of the spring under test. That is, when determining whether the yield performance of the spring under test meets the requirements of the target yield performance, this solution does not require accurate measurement of the deformation of the elastic element and the spring under test, but simply compares the magnitude of the deformation of the elastic element and the spring under test. This operation can be completed by the operator's naked eye, and is simple and quick.

[0018] Preferably, the compression element is threaded to the frame, and the axis of the threaded connection is parallel to the extension and contraction direction of the elastic element, so that the compression element and the frame can rotate relative to each other to move the compression element closer to or away from the limiting structure.

[0019] The specific forms of threaded connections include, but are not limited to, ordinary connecting threads, such as triangular threads; or transmission threads, such as trapezoidal or square threads.

[0020] This solution recommends a specific connection method between the compression element and the frame. Using a threaded connection allows the movement of the compression element along the stretching direction of the elastic element to be controlled by the number of rotations of the compression element relative to the frame, thereby achieving more precise and stepless control of the compression amount of the spring under test. On the other hand, it also allows the compression element to self-lock after reaching the predetermined position, thus making it convenient for operators to obtain the deformation amount of the spring under test and the compression element.

[0021] Preferably, the frame is provided with an indicator scale along the extension and retraction direction of the elastic element.

[0022] The indicator scale can be set along the entire length of the elastic element on the frame, or it can be set only at the location where the deformation needs to be measured, such as at the limiting structure and / or the compression element.

[0023] This solution allows operators to easily read the deformation of the elastic element and the spring under test.

[0024] Preferably, at least one of the limiting structure and the compression element is connected to a pointer that points to an indicating scale.

[0025] This solution enables operators to more accurately read the deformation of the elastic element and the spring under test.

[0026] Preferably, the elastic element is detachably connected to the frame.

[0027] This solution allows operators to easily replace elastic elements with different yield properties, thereby better adapting to measurement scenarios with different target yield properties. It prevents situations where the yield properties of the elastic element are too large or too small compared to the target yield properties, resulting in excessive deformation and negatively impacting the measurement results.

[0028] Preferably, the frame includes an outer cylinder for accommodating the elastic element and the spring to be tested, and the outer cylinder is provided with at least one inlet for inserting the spring to be tested.

[0029] This solution can protect the internal elastic element through the outer cylinder and avoid interference from the external environment on the compression of the spring and elastic element under test; at the same time, the outer cylinder can also limit the spring under test, preventing the spring from being bounced away during compression due to the insecure limiting structure.

[0030] Preferably, a cylinder cover is detachably connected to the inlet of the outer cylinder.

[0031] The detachable connection between the cap and the outer cylinder includes, but is not limited to, threaded connection, pin connection, and snap-fit ​​connection.

[0032] This solution can further prevent the spring under test from being bounced away from the inlet, or foreign objects from entering the outer cylinder from the inlet.

[0033] In a second aspect, the present invention provides a method for using a spring yield performance testing device, comprising the following steps:

[0034] S1. Connect the spring to be tested to a spring yield performance testing device of the present invention, so that the spring to be tested is located between the limiting structure and the compression element;

[0035] S2. Adjust the position of the compression element so that it is close to the limiting structure and compresses the spring to be tested;

[0036] S3. Obtain the first deformation amount of the spring to be tested and the second deformation amount of the elastic element, and determine whether the yield performance of the spring to be tested meets the target yield performance based on the first deformation amount and the second deformation amount.

[0037] The method of using the spring yield performance testing device of this invention is to compress the spring to be tested and determine whether the yield performance of the spring to be tested meets the target yield performance requirements by observing the first deformation amount of the spring to be tested and the second deformation amount of the elastic element. Since the deformation amount can be obtained by various means that do not rely on electronic components, such as rulers, tape measures, and visual judgment, this solution is more suitable for oil and gas extraction sites with strict fire and explosion protection requirements.

[0038] Preferably, when the yield performance of the compression element matches the target yield performance, step S3 includes the following steps:

[0039] S31. Obtain the first deformation of the spring to be tested and the second deformation of the elastic element;

[0040] S32. Determine whether the difference between the first deformation and the second deformation is within the preset range. If yes, the yield performance of the spring under test meets the target yield performance; if no, the yield performance of the spring under test does not meet the target yield performance.

[0041] This method determines whether the yield performance of the spring under test meets the target yield performance requirements by comparing the magnitude of the first deformation of the spring under test and the second deformation of the elastic element. It eliminates the need for accurate measurement of the first and second deformations, making the operation more convenient.

[0042] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0043] 1. This invention provides a spring yield performance testing device. By compressing the spring and elastic element under test with a compression element, the spring and elastic element under test are deformed respectively. By observing and measuring the amount of deformation, it can be determined whether the yield performance of the spring under test meets the target yield performance requirements. Compared with the prior art, the operation of this invention does not rely on electronic components, and has the advantages of simple structure, reliable operation, and low cost. Moreover, it is easier to meet the fire prevention and explosion protection requirements of oil and gas extraction sites.

[0044] 2. This invention provides a method for using a spring yield performance testing device. By using the spring yield performance testing device of this invention to compress the spring to be tested, and by observing the first deformation amount of the spring to be tested and the second deformation amount of the elastic element, it is determined whether the yield performance of the spring to be tested meets the target yield performance requirements. Since the deformation amount can be obtained by various means that do not rely on electronic components, such as rulers, measuring tapes, and visual judgment, this solution is more suitable for oil and gas extraction sites with strict fire and explosion protection requirements. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the isometric structure of a spring yield performance testing device of the present invention with the spring to be tested installed.

[0046] Figure 2 This is a schematic diagram of the isometric structure of a spring yield performance testing device of the present invention in the state where the spring to be tested is not installed;

[0047] Figure 3 This is an isometric structural diagram of the frame of a spring yield performance testing device according to the present invention;

[0048] Figure 4This is an isometric structural diagram of a spring yield performance testing device of the present invention in a concealed frame state;

[0049] Icons: 1-Frame; 11-Indicator scale; 2-Elastic element; 3-Limiting structure; 4-Compression element; 41-Push rod; 5-Pointer; 6-Cylinder cover; 7-Spring to be tested. Detailed Implementation

[0050] The present invention will be further described in detail below with reference to experimental examples and specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0051] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of the present invention is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the present invention or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a particular device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on the present invention.

[0052] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but that it can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0053] Furthermore, the use of terms such as "first," "second," "third," etc. in terminology is merely for distinguishing identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0054] Furthermore, in the description of the embodiments of the present invention, "several", "more than", and "a number of" represent at least two. The number can be any number, such as 2, 3, 4, 5, 6, 7, 8, or 9, and can even exceed nine.

[0055] Furthermore, in the description of the technical solution of this invention, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "provided with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0056] Example 1

[0057] like Figures 1 to 4 As shown, a spring yield performance testing device includes a frame 1, an elastic element 2, a limiting structure 3, and a compression element 4. One end of the elastic element 2 is connected to the frame 1. The limiting structure 3 is located at the other end of the elastic element 2, i.e., the end away from the connection between the elastic element 2 and the frame 1, and is used to install the spring 7 to be tested. The compression element 4 is connected to the frame 1 and is located on the side of the limiting structure 3 away from the elastic element 2. The area between the compression element 4 and the limiting structure 3 can be used to install the spring 7 to be tested. That is, when the compression element 4 is in an uncompressed state, the distance between the compression element 4 and the limiting structure 3 is greater than or equal to the length of the spring 7 to be tested. The position of the compression element 4 along the extension and retraction direction of the elastic element 2 is adjustable, thereby compressing or releasing the spring 7 to be tested.

[0058] In an optional implementation, the yield strength of the compression element 4 is matched with the target yield strength. For example, if the target yield strength is 1000 N / m, the yield strength of the compression element 4 can also be set to 1000 N / m.

[0059] In an optional embodiment, the frame 1 includes an outer cylinder for accommodating the elastic element 2 and the spring 7 to be tested, and the outer cylinder is provided with at least one inlet for inserting the spring 7 to be tested. Figure 1 As shown, the outer cylinder can be coaxially arranged with the elastic element 2, and its inner wall is in clearance fit with the outer surface of the elastic element 2 and the spring to be tested 7, so that the outer cylinder can limit the elastic element 2 and the spring to be tested 7, and can suppress the jumping of the elastic element 2 and the spring to be tested 7 during the compression process; one end of the outer cylinder along its axial direction is opened as the inlet.

[0060] In an optional embodiment, the compression element 4 is threadedly connected to the frame 1, with the axis of the threaded connection parallel to the extension and retraction direction of the elastic element 2, allowing the compression element 4 to rotate relative to the frame 1, thus moving the compression element 4 closer to or further away from the limiting structure 3. Figure 1 As shown, taking the frame 1 as an example containing the outer cylinder, an internal thread can be provided on the inner side wall of the inlet of the outer cylinder, and an external thread of the corresponding size can be provided on the outer side wall of the compression element 4. The external thread and the internal thread mesh with each other, and rotating the compression element 4 can make the compression element 4 approach or move away from the limiting structure 3.

[0061] In optional implementations, such as Figure 1 As shown, the end of the compression element 4 away from the elastic element 2 is connected to a push rod 41. The push rod 41 extends away from the elastic element 2 until it extends out of the outer cylinder, so that the operator can easily rotate the compression element 4.

[0062] In an optional embodiment, the side of the limiting structure 3 facing the spring 7 to be tested is provided with a cylindrical protrusion, and the outer diameter of the cylindrical protrusion matches the inner diameter of the spring 7 to be tested, so that the end of the spring 7 to be tested facing the elastic element 2 can be inserted into the cylindrical protrusion, thereby realizing the connection between the limiting structure 3 and the spring 7 to be tested.

[0063] In an optional embodiment, the side of the compression element 4 facing the spring 7 to be tested is also provided with a cylindrical protrusion, and the outer diameter of the cylindrical protrusion matches the inner diameter of the spring 7 to be tested, so that the end of the spring 7 to be tested facing the compression element 4 can be inserted into the cylindrical protrusion, thereby further limiting the spring 7 to be tested.

[0064] In an optional implementation, the elastic element 2 includes a helical spring, which allows its compression behavior to be as consistent as possible with that of the spring 7 under test, thereby ensuring the accuracy of the measurement results.

[0065] In an optional embodiment, when the elastic element 2 includes a helical spring, the side of the limiting structure 3 facing the elastic element 2 is also provided with a cylindrical protrusion, and the outer diameter of the cylindrical protrusion matches the inner diameter of the elastic element 2, so that the elastic element 2 can be inserted into the cylindrical protrusion to realize the connection between the elastic element 2 and the limiting structure 3.

[0066] In an optional embodiment, the frame 1 is provided with an indicator scale 11 along the extension and retraction direction of the elastic element 2.

[0067] In optional implementations, such as Figure 3 As shown, independent scales are set at the elastic element 2 and the spring to be tested 7, respectively, so that the operator can easily read the deformation of the elastic element 2 and the spring to be tested 7 respectively.

[0068] In an optional embodiment, at least one of the limiting structure 3 and the compression element 4 is connected to a pointer 5, which points to the indicating scale 11. It should be noted that when the frame 1 includes an outer cylinder, a transparent window or through-slot can be provided at a corresponding position on the outer cylinder to expose the position of the pointer 5; for example... Figure 2 and Figure 4 As shown, this illustrates the case where both the limiting structure 3 and the compression element 4 are equipped with pointers 5.

[0069] In an optional embodiment, the elastic element 2 is detachably connected to the frame 1. For example... Figure 3 As shown, taking the case where the frame 1 includes an outer cylinder as an example, a cylindrical protrusion is provided at the end of the frame 1 away from the inlet, and the outer diameter of the cylindrical protrusion matches the inner diameter of the elastic element 2, so that the elastic element 2 can be inserted and removed onto the cylindrical protrusion, thereby realizing the detachable connection between the elastic element 2 and the outer cylinder.

[0070] In an optional embodiment, a cylinder cover 6 is detachably connected to the inlet of the outer cylinder. For example... Figure 1 As shown, the cap 6 and the outer cylinder can be threaded together. It should be noted that when the compression element 4 is equipped with a push rod 41, the cap 6 can be provided with a through hole for the push rod 41 to pass through, so as to keep the push rod 41 able to extend out of the outer cylinder and avoid the cap 6 from obstructing the rotation of the push rod 41.

[0071] Example 2

[0072] A method for using a spring yield performance testing device includes the following steps:

[0073] S1. Connect the spring 7 to be tested to a spring yield performance testing device installed in Example 1, so that the spring 7 to be tested is located between the limiting structure 3 and the compression element 4; Figure 1 Taking the spring yield performance testing device shown as an example, the cylinder cover 6, compression element 4, and limiting structure 3 can be removed from the outer cylinder first. Then, the two ends of the spring to be tested 7 are connected to the limiting structure 3 and the compression element 4 respectively. The limiting structure 3, the spring to be tested 7, and the compression element 4 are put back into the outer cylinder, and then the cylinder cover 6 is put back on.

[0074] S2. Adjust the position of the compression element 4 so that it is close to the limiting structure 3 and compresses the spring 7 to be tested; Figure 1 Taking the spring yield performance testing device shown as an example, the operator can hold the push rod 41 and rotate it, thereby driving the compression element 4 to rotate and approach the elastic element 2, which can compress the spring 7 to be tested and the elastic element 2.

[0075] S3. Obtain the first deformation amount of the spring 7 under test and the second deformation amount of the elastic element 2. Determine whether the yield performance of the spring 7 under test meets the target yield performance based on the first and second deformation amounts. Figure 1 Taking the spring yield performance testing device shown as an example, the first deformation amount of the spring 7 to be tested and the second deformation amount of the elastic element 2 can be read according to the indicator scale 11. The elastic force generated by the elastic element 2 can be calculated according to the second deformation amount and the yield performance of the elastic element 2, so as to obtain the elastic force generated by the spring 7 to be tested, which is equal to it. Then, the yield performance of the spring 7 to be tested can be deduced from the elastic force generated by the spring 7 to be tested and the first deformation amount, and then it can be determined whether the yield performance of the spring 7 to be tested meets the requirements of the target yield performance.

[0076] In an optional implementation, when the yield performance of the compression element 4 matches the target yield performance, step S3 includes the following steps:

[0077] S31. Obtain the first deformation amount of the spring 7 to be tested and the second deformation amount of the elastic element 2;

[0078] S32. Determine whether the difference between the first deformation and the second deformation is within a preset range. If yes, the yield performance of the spring 7 under test meets the target yield performance; if no, the yield performance of the spring 7 under test does not meet the target yield performance. For example, the preset range can be set as follows: the absolute value of the difference between the first deformation and the second deformation is less than or equal to a predetermined threshold, or the ratio of the difference between the first deformation and the second deformation to the target yield performance is less than or equal to a predetermined threshold.

[0079] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A spring yield performance testing device, characterized in that, Include: Rack (1); An elastic element (2) is provided at one end of the frame (1) and at the other end of the elastic element (2) is a limiting structure (3). A compression element (4) is connected to the frame (1). The compression element (4) is located on the side of the limiting structure (3) away from the elastic element (2). The area between the compression element (4) and the limiting structure (3) is used to install the spring (7) to be tested. The position of the compression element (4) along the extension and retraction direction of the elastic element (2) is adjustable, thereby compressing or releasing the spring (7) to be tested.

2. The spring yield performance testing device according to claim 1, characterized in that, The yield properties of the compression element (4) are matched with the target yield properties.

3. The spring yield performance testing device according to claim 1, characterized in that, The compression element (4) is threaded to the frame (1), and the axis of the threaded connection is parallel to the extension and retraction direction of the elastic element (2). The compression element (4) and the frame (1) can rotate relative to each other so that the compression element (4) can move closer to or away from the limiting structure (3).

4. A spring yield performance testing device according to any one of claims 1 to 3, characterized in that, The frame (1) is provided with an indicator scale (11) along the extension and retraction direction of the elastic element (2).

5. The spring yield performance testing device according to claim 4, characterized in that, A pointer (5) is connected to at least one of the limiting structure (3) and the compression element (4), and the pointer (5) points to the indicating scale (11).

6. A spring yield performance testing device according to any one of claims 1 to 3, characterized in that, The elastic element (2) is detachably connected to the frame (1).

7. A spring yield performance testing device according to any one of claims 1 to 3, characterized in that, The frame (1) includes an outer cylinder for accommodating the elastic element (2) and the spring to be tested (7), and the outer cylinder is provided with at least one inlet for inserting the spring to be tested (7).

8. The spring yield performance testing device according to claim 7, characterized in that, A cylinder cover (6) is detachably connected to the inlet of the outer cylinder.

9. A method of using a spring yield performance testing device, characterized in that, It includes the following steps: S1. Connect the spring (7) to be tested to a spring yield performance testing device as described in any one of claims 1 to 8, so that the spring (7) to be tested is located between the limiting structure (3) and the compression element (4); S2. Adjust the position of the compression element (4) so ​​that the compression element (4) is close to the limiting structure (3) and compresses the spring (7) to be tested; S3. Obtain the first deformation amount of the spring (7) to be tested and the second deformation amount of the elastic element (2), and determine whether the yield performance of the spring (7) to be tested meets the target yield performance based on the first deformation amount and the second deformation amount.

10. The method of using the spring yield performance testing device according to claim 9, characterized in that, When the yield performance of the compression element (4) matches the target yield performance, step S3 includes the following steps: S31. Obtain the first deformation amount of the spring (7) to be tested and the second deformation amount of the elastic element (2); S32. Determine whether the difference between the first deformation and the second deformation is within a preset range. If yes, the yield performance of the spring to be tested (7) meets the target yield performance. If no, the yield performance of the spring to be tested (7) does not meet the target yield performance.

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