A method of combining state reduction spring force

Abstract

The present application relates to spring repair technical field, specifically a kind of method for reducing spring force in combination state, its specific steps are as follows: S1, spring force initial state detection;S2, according to spring force value between torsion 45°-90° state measurement;S3, the influence of low-temperature tempering on assembly;S4, to spring force reduction repair;S5, test verification;S6, reliability verification;Through to spring torsion angle analysis, and then get the relationship between torsion angle and force value, and through test verification to obtain product improvement scheme, perfect product maintenance technical requirement, improve product repair level and reliability.

Description

Technical Field

[0001] This invention relates to the field of spring repair technology, specifically a method for reducing spring force using a combination of methods. Background Technology

[0002] During use, this type of electromagnet frequently malfunctions, failing to activate at the minimum specified voltage due to an increase in the force of the return spring fixed on the internal armature. This leads to system inoperability and impacts flight safety. Because the spring on the internal armature of this type of electromagnet is riveted, replacing the spring requires disassembling the riveted components, which is impossible without the necessary equipment and repair capabilities. Current repair methods only involve replacing the entire unit with a replacement, resulting in high maintenance costs. Research is needed on repair techniques that reduce the spring force without disassembly, and the impact of these methods on product performance should be verified through testing. This approach can be applied to the product's maintenance process, ensuring stable and reliable maintenance quality. Summary of the Invention

[0003] To address the aforementioned problems, this invention proposes a method for reducing spring force using a combination of states.

[0004] A method for reducing spring force using a combination of conditions, comprising the following specific steps:

[0005] S1. Initial state detection of spring force:

[0006] a. According to the technical specification, the starting force is no more than 18N to be qualified. Based on the working principle of the electromagnet in the product, the electromagnet is rotated under 16V voltage. The faulty electromagnet with unqualified minimum starting force is divided into two categories: repairable and unrepairable.

[0007] b. Determine the repairability standard of electromagnets based on the difficulty of repair: electromagnets with a starting force of no more than 18N are considered repairable products, and those with a starting force of more than 20N are considered unrepairable products.

[0008] S2. Measure the spring force value between 45° and 90° of torsion: Measure the initial force of the return spring that affects the starting force. Referring to the manufacturing technical parameters of springs of the same type, use a thrust gauge with the assistance of an angle gauge to measure the force at 90°, 60°, and 45° respectively, obtain the rotational force value of the spring at each angle, and record the data.

[0009] S3. The effect of low-temperature tempering on the assembly: Referring to the manufacturing technical parameters of springs of similar products, the springs on the armature assembly were placed in a heating box for tempering while maintaining the spring angles at 90°, 60° and 45° respectively. After tempering, the force was measured and compared with the original state. After assembly, the minimum starting force was checked until the force measurement was qualified.

[0010] S4. Repairing the reduced spring force: Based on the electromagnet's working cycle of 1000 hours, use twice the working cycle as the reliability verification period to verify the reliability of the electromagnet's minimum starting force.

[0011] S5. Experimental verification;

[0012] S6. Reliability Verification: Conduct reliability verification work on electromagnets that have been repaired and have passed the minimum starting force test.

[0013] The temperature of the heating chamber in step S3 is 270℃±10℃, and the holding time is 30min.

[0014] The verification process in step S5 involves placing the armature assembly in a heating chamber at a temperature of 270℃±10℃ for 30 minutes with a spring having a starting force between 18 and 18.5N at 90°. This reduces the force value to within the acceptable range, i.e., no more than 18N.

[0015] The verification process in step S5 involves placing the armature assembly in a heating chamber at a temperature of 270℃±10℃ for 30 minutes with a spring having a starting force between 18.5 and 19.2 N at 60°. This reduces the force value to within the acceptable range, i.e., no more than 18 N.

[0016] The verification process in step S5 involves placing the armature assembly in a heating chamber at a temperature of 270℃±10℃ for 30 minutes with a spring having a starting force between 19.2 and 20N at a 45° angle. This reduces the force value to within the acceptable range, i.e., no more than 18N.

[0017] The specific verification process in step S6 is to use twice the working cycle of the electromagnet (1000 hours) as the period for verifying reliability.

[0018] The beneficial effects of this invention are:

[0019] This invention analyzes the torsion angle of a spring to obtain the relationship between the torsion angle and the force value, and verifies the product improvement plan through experiments, thereby improving the product maintenance technical requirements and enhancing the product repair level and reliability. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the process structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the armature structure of the present invention. Figure 1 ;

[0023] Figure 3This is a schematic diagram of the armature structure of the present invention. Figure 2 ;

[0024] Figure 4 This is a schematic diagram of the spring angle of the present invention. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below.

[0026] like Figures 1 to 4 As shown, a method for reducing spring force in a combined state is described, and its specific steps are as follows:

[0027] S1. Initial state detection of spring force:

[0028] a. According to the technical specification, the starting force is no more than 18N to be qualified. Based on the working principle of the electromagnet in the product, the electromagnet is rotated under 16V voltage. The faulty electromagnet with unqualified minimum starting force is divided into two categories: repairable and unrepairable.

[0029] b. Determine the repairability standard of electromagnets based on the difficulty of repair: electromagnets with a starting force of no more than 18N are considered repairable products, and those with a starting force of more than 20N are considered unrepairable products.

[0030] S2. Measure the spring force value between 45° and 90° of torsion: Measure the initial force of the return spring that affects the starting force. Referring to the manufacturing technical parameters of springs of the same type, use a thrust gauge with the assistance of an angle gauge to measure the force at 90°, 60°, and 45° respectively, obtain the rotational force value of the spring at each angle, and record the data.

[0031] S3. The effect of low-temperature tempering on the assembly: Referring to the manufacturing technical parameters of springs of similar products, the springs on the armature assembly were placed in a heating box for tempering while maintaining the spring angles at 90°, 60° and 45° respectively. After tempering, the force was measured and compared with the original state. After assembly, the minimum starting force was checked until the force measurement was qualified.

[0032] S4. Repairing the reduced spring force: Based on the electromagnet's working cycle of 1000 hours, use twice the working cycle as the reliability verification period to verify the reliability of the electromagnet's minimum starting force.

[0033] S5. Experimental verification;

[0034] S6. Reliability Verification: Conduct reliability verification work on electromagnets that have been repaired and have passed the minimum starting force test.

[0035] By analyzing the torsion angle of the spring, the relationship between the torsion angle and the force value is obtained. Through experimental verification, a product improvement plan is obtained, the product maintenance technical requirements are improved, and the product repair level and reliability are enhanced.

[0036] In step S1b, the repairable electromagnet is repaired by reducing the force of the return spring on the internal armature.

[0037] By analyzing the raw data of the spring force value in step S2, analyzing the pressing state, and studying the system to obtain the failure occurrence pattern, researching methods to reduce the spring force, establishing a test environment, conducting test verification, obtaining the influence of heat treatment on the spring force, determining the spring change angle that needs to be limited to reduce the spring force to the qualified force for springs with different initial forces, and conducting working performance tests according to the actual use conditions of the product, and checking the stability of the product during the test to verify the reliability of the product improvement.

[0038] The temperature of the heating chamber in step S3 is 270℃±10℃, and the holding time is 30min.

[0039] All subsequent tempering processes require disassembling the electromagnet, removing the armature that holds the internal spring, and treating the armature, spring, and rivets as a single assembly without further disassembly. Analyze and study the materials and heat treatment effects of each component within the assembly, and, in conjunction with the characteristics of spring force variation and referring to the original design requirements, develop a repair and reliability verification plan to reduce the spring force.

[0040] The verification process in step S5 involves placing the armature assembly in a heating chamber at a temperature of 270℃±10℃ for 30 minutes with a spring having a starting force between 18 and 18.5N at 90°. This reduces the force value to within the acceptable range, i.e., no more than 18N.

[0041] The verification process in step S5 involves placing the armature assembly in a heating chamber at a temperature of 270℃±10℃ for 30 minutes with a spring having a starting force between 18.5 and 19.2 N at 60°. This reduces the force value to within the acceptable range, i.e., no more than 18 N.

[0042] The verification process in step S5 involves placing the armature assembly in a heating chamber at a temperature of 270℃±10℃ for 30 minutes with a spring having a starting force between 19.2 and 20N at a 45° angle. This reduces the force value to within the acceptable range, i.e., no more than 18N.

[0043] The specific verification process in step S6 is as follows: based on the electromagnet's working cycle of 1000 hours, twice the working cycle is used as the verification period. The electromagnet is subjected to 2000 start-up conversion tests to verify its working reliability. After 2000 start-up conversions, the minimum starting force is checked and should pass.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely prisms of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A method for reducing spring force in a combination of states, characterized in that: The specific steps are as follows: S1. Initial state detection of spring force: a. According to the technical specification, the starting force is no more than 18N to be qualified. Based on the working principle of the electromagnet in the product, the electromagnet is rotated under 16V voltage. The faulty electromagnet with unqualified minimum starting force is divided into two categories: repairable and unrepairable. b. Determine the repairability standard for electromagnets based on the difficulty of repair: electromagnets with a starting force greater than 18N and not greater than 20N are considered repairable products, while those with a starting force greater than 20N are considered unrepairable products. S2. Measure the spring force value between 45° and 90° of torsion: Measure the initial force of the return spring that affects the starting force. Referring to the manufacturing technical parameters of springs of the same type, use a thrust gauge with the assistance of an angle gauge to measure the force at 90°, 60°, and 45° respectively, obtain the rotational force value of the spring at each angle, and record the data. S3. The effect of low-temperature tempering on the assembly: Referring to the manufacturing technical parameters of springs of similar products, the springs on the armature assembly were placed in a heating box for tempering while maintaining the spring angles at 90°, 60° and 45° respectively. After tempering, the force was measured and compared with the original state. After assembly, the minimum starting force was checked until the force measurement was qualified. S4. Repairing the reduced spring force: Based on the electromagnet's working cycle of 1000 hours, use twice the working cycle as the reliability verification period to verify the reliability of the electromagnet's minimum starting force. S5. Experimental verification; S6. Reliability verification: Conduct reliability verification on electromagnets that have been repaired and have passed the minimum starting force test. The verification process in step S5 involves placing the armature assembly in a heating chamber at 270℃±10℃ for 30 minutes with a spring having a starting force between 18 and 18.5 N at 90°, and reducing the force value to within the acceptable range, i.e., no more than 18 N. Alternatively, the verification process in step S5 involves placing the armature assembly in a heating chamber at 270℃±10℃ for 30 minutes with a spring having a starting force between 18.5 and 19.2 N at 60°, and reducing the force value to within the acceptable range, i.e., no more than 18 N. Finally, the verification process in step S5 involves placing the armature assembly in a heating chamber at 270℃±10℃ for 30 minutes with a spring having a starting force between 19.2 and 20 N at 45°, and reducing the force value to within the acceptable range, i.e., no more than 18 N.

2. The method for reducing spring force in a combined state according to claim 1, characterized in that: The temperature of the heating chamber in step S3 is 270℃±10℃, and the holding time is 30min.

3. The method for reducing spring force in a combined state according to claim 1, characterized in that: The specific verification process in step S6 is to use twice the working cycle of the electromagnet (1000 hours) as the period for verifying reliability.

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