Durability test method and system for push rod motor

By using replaceable tension springs and proximity sensors in the push rod motor durability test system, simulating the push rod expansion distance and load under different working conditions, the problem that existing testing methods cannot effectively verify the durability performance of push rod motors is solved, and the problem of existing testing methods is not able to effectively verify the push rod motors. Efficient and reliable durability testing.

CN119414234APending Publication Date: 2025-02-11LOVOL HEAVY IND CO LTD
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Patent Information

Application Number
CN202411757666.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2025-02-11

AI Technical Summary

Technical Problem

The durability testing methods of existing push rod motors cannot simulate the requirements of push rod expansion and contraction distance under different working conditions, and cannot flexibly adjust the load, and cannot effectively verify the durability performance of the motor.

Method used

Provide a durability test system for push rod motors, which can adapt to push rod load requirements under different usage positions and working conditions by flexibly replacing springs with different tensile kilograms; at the same time, the proximity sensor is used to adjust the expansion distance of push rod motors to simulate Actual vehicle usage conditions.

Benefits of technology

The system is highly reliable. Through the load configuration and telescopic distance that are consistent with the real vehicle, the durability performance of the motor is effectively verified, which is easy to operate and efficient, significantly improving the testing efficiency.

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Abstract

The invention provides a durability test method and system for a push rod motor. The durability test system comprises a first controller, a second controller, a first proximity sensor, a second proximity sensor, an induction baffle, the push rod motor and at least one spring. Wherein the first controller determines whether a proximity signal generated when the first proximity sensor and / or the second proximity sensor approaches the induction baffle is received or not, and sends a control command corresponding to a receiving result to the second controller according to the receiving result; the second controller responds to the control command and controls the push rod motor to stretch out to enable the at least one spring to be compressed or controls the push rod motor to contract to enable the at least one spring to be stretched. By adopting the technical scheme of the invention, accurate simulation of push rod loads of various products under different working conditions is realized, so that the durability verification efficiency and reliability of the motor are remarkably improved.
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Description

Technical Field

[0001] The present application relates to the technical field of durability testing, and in particular to a durability testing method and system for a push rod motor. Background Art

[0002] As a mechanical device that can convert the rotational motion of a motor into linear motion, push rod motors are widely used in various mechanical equipment that need to achieve push-pull actions. At present, push rod motors are used in large quantities. In actual applications, the load conditions they push vary greatly, the working conditions they are in are complex and diverse, and the telescopic distances of the push rods are also different. In terms of durability testing of push rod motors, most of them currently use the bare machine power-on method to test their operating conditions.

[0003] However, the bare-machine power-on test method cannot simulate the requirements for the push rod extension distance under different working conditions of the actual vehicle. It can only make the push rod motor move back and forth between the maximum extension and minimum extension amounts. It can neither flexibly adjust the load according to actual needs, nor simulate the situation of the actual vehicle with load. Summary of the invention

[0004] In view of this, the embodiments of the present application at least provide a durability testing method and system for a push rod motor, which can flexibly replace springs with different tensile forces in kilograms to adapt to the push rod load requirements of various products in different usage positions and working conditions; at the same time, it has high reliability, and effectively verifies the durability of the motor through load configuration and telescopic distance consistent with the actual vehicle; in addition, it is easy to operate and efficient, and by adjusting the relative distance of the proximity sensor, the telescopic distance of the push rod motor can be quickly changed to simulate the actual vehicle usage conditions, thereby greatly improving the test efficiency.

[0005] This application mainly includes the following aspects:

[0006] In a first aspect, an embodiment of the present application provides a durability test system for a push rod motor, the durability test system comprising: a first controller, a second controller, a first proximity sensor, a second proximity sensor, an induction baffle, a push rod motor, and at least one spring;

[0007] Among them, the first controller determines whether it has received the proximity signal generated by the first proximity sensor and / or the second proximity sensor when approaching the sensing baffle, and sends a control command corresponding to the receiving result to the second controller according to the receiving result; the second controller responds to the control command to control the push rod motor to extend so that at least one spring is compressed or controls the push rod motor to contract so that at least one spring is stretched.

[0008] Preferably, the durability testing system further comprises: a fixing device, a hook and a threaded screw;

[0009] Among them, one end of the fixing device is fixedly connected to one end of each spring in at least one spring, the other end of each spring in at least one spring is fixedly connected to one end of the hook, the other end of the hook is fixedly connected to one end of the threaded screw, the other end of the threaded screw is fixedly connected to the push rod end of the push rod motor, the communication port of the push rod motor is electrically connected to the first communication port of the second controller, the second communication port of the second controller is electrically connected to the first communication port of the first controller, the second communication port of the first controller is electrically connected to the communication ports of the first proximity sensor and the second proximity sensor, respectively, the sensing baffle is arranged on the threaded screw, and at least a portion of the sensing baffle is located between the first proximity sensor and the second proximity sensor.

[0010] Preferably, one end of each of the at least one spring is fixedly connected to the hook body of the hook, and the hook head of the hook is fixedly connected to one end of the threaded screw.

[0011] Preferably, the inductive flap is adjusted to a desired position of the threaded spindle.

[0012] Preferably, the first proximity sensor and the second proximity sensor are placed opposite to each other, and a desired distance is spaced between the first proximity sensor and the second proximity sensor.

[0013] Preferably, the communication port of the push rod motor is electrically connected to the first communication port of the second controller via a bridge line.

[0014] Preferably, the second communication port of the second controller is electrically connected to the first communication port of the first controller via a CAN bus.

[0015] Preferably, the second communication port of the first controller is electrically connected to the communication ports of the first proximity sensor and the second proximity sensor respectively through cables.

[0016] In a second aspect, an embodiment of the present application further provides a durability testing method for a push rod motor, wherein the durability testing method is applied to the durability testing system;

[0017] The durability test method includes:

[0018] The first controller determines whether a proximity signal generated when the first proximity sensor and / or the second proximity sensor approaches the sensing baffle is received;

[0019] The first controller sends a control command corresponding to the receiving result to the second controller according to the receiving result. In response to the control command, the second controller controls the push rod motor to extend so that at least one spring is compressed or controls the push rod motor to contract so that at least one spring is stretched.

[0020] Preferably, the first controller sends a control command corresponding to the receiving result to the second controller according to the receiving result, and the second controller controls the push rod motor to extend so that at least one spring is compressed or controls the push rod motor to contract so that at least one spring is stretched in response to the control command, including:

[0021] If the first controller does not receive the proximity signal generated when the first proximity sensor approaches the sensing baffle, the first controller sends a first extension control instruction to the second controller, and the second controller controls the push rod motor to extend in response to the first extension control instruction, so that at least one spring is compressed;

[0022] If the first controller receives a proximity signal generated when the first proximity sensor approaches the sensing baffle, the first controller sends a first contraction control instruction to the second controller, and the second controller controls the push rod motor to contract in response to the first contraction control instruction, so that at least one spring is stretched, and the first controller determines whether it has received a proximity signal generated when the second proximity sensor approaches the sensing baffle;

[0023] If the first controller does not receive the proximity signal generated when the second proximity sensor approaches the sensing baffle, the first controller sends a second contraction control instruction to the second controller, and the second controller controls the push rod motor to contract in response to the second contraction control instruction, so that at least one spring is stretched;

[0024] If the first controller receives a proximity signal generated when the second proximity sensor approaches the sensing baffle, the first controller sends a second extension control instruction to the second controller, and the second controller controls the push rod motor to extend in response to the second extension control instruction, so that at least one spring is extended and retracted.

[0025] The embodiment of the present application provides a method and system for testing the durability of a push rod motor. The first controller determines whether a proximity signal generated when the first proximity sensor and / or the second proximity sensor approaches the sensing baffle is received, and sends a control command corresponding to the reception result to the second controller according to the reception result; the second controller responds to the control command to control the push rod motor to extend so that at least one spring is compressed or to control the push rod motor to contract so that at least one spring is stretched. In this way, springs with different tensile forces in kilograms can be flexibly replaced to meet the push rod load requirements of various products in different use positions and working conditions; at the same time, the reliability is high, and the durability of the motor is effectively verified through the load configuration and telescopic distance consistent with the actual vehicle; in addition, the operation is simple and efficient. By adjusting the relative distance of the proximity sensor, the telescopic distance of the push rod motor can be quickly changed to simulate the actual vehicle use conditions, thereby greatly improving the test efficiency.

[0026] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A schematic structural diagram of a durability testing system for a push rod motor provided in an embodiment of the present application is shown;

[0029] Figure 2 One of the flow charts of a method for testing the durability of a push rod motor provided in an embodiment of the present application is shown;

[0030] Figure 3 The second flowchart of a method for testing the durability of a push rod motor provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0031] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the drawings in the present application only serve the purpose of explanation and description and are not used to limit the scope of protection of the present application. In addition, it should be understood that the schematic drawings are not drawn in real proportion. The flowchart used in this application shows the operations implemented according to some embodiments of the present application. It should be understood that the operations of the flowchart can be implemented out of sequence, and the steps without logical context can be reversed in order or implemented simultaneously. In addition, those skilled in the art, under the guidance of the content of the present application, can add one or more other operations to the flowchart, or remove one or more operations from the flowchart.

[0032] In addition, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0033] The following methods, devices and systems of the embodiments of the present application can be applied to any scenario requiring a telescopic motor. The embodiments of the present application are not limited to specific application scenarios. Any solution of the durability test method and system of the push rod motor provided by the embodiments of the present application is within the protection scope of the present application.

[0034] As a mechanical device that can convert the rotational motion of a motor into linear motion, push rod motors have been widely used in various mechanical equipment that need to achieve push-pull actions. At present, push rod motors are used in large quantities. In actual applications, the load conditions they push vary greatly, the working conditions are complex and diverse, and the telescopic distances of the push rods are also different. In terms of durability testing of push rod motors, most of the current methods use the bare machine power-on method to test its operating conditions. However, the bare machine power-on test method cannot simulate the requirements for the telescopic distance of the push rod under different working conditions of the actual vehicle. It can only make the push rod motor move back and forth between the maximum telescopic amount and the minimum telescopic amount. It can neither flexibly adjust the load according to actual needs, nor simulate the situation of the actual vehicle with load.

[0035] In response to the above problems, the embodiments of the present application provide a durability testing method and system for a push rod motor, which can flexibly replace springs with different tensile forces in kilograms to adapt to the push rod load requirements of various products in different usage positions and working conditions; at the same time, it has high reliability and effectively verifies the durability of the motor through load configuration and telescopic distance consistent with the actual vehicle; in addition, it is easy to operate and efficient, and by adjusting the relative distance of the proximity sensor, the telescopic distance of the push rod motor can be quickly changed to simulate the actual vehicle usage conditions, thereby greatly improving the test efficiency.

[0036] To facilitate the understanding of the present application, the technical solution provided by the present application is described in detail below in conjunction with specific embodiments.

[0037] See also Figure 1 , Figure 1 A schematic structural diagram of a durability testing system for a push rod motor provided in an embodiment of the present application is shown.

[0038] like Figure 1 As shown in the figure, the durability test system of the push rod motor provided by the embodiment of the present application comprises: a first controller 9, a second controller 10, a first proximity sensor 7, a second proximity sensor 8, a sensing baffle 5, a push rod motor 6 and at least one spring 2. The first controller 9 determines whether a proximity signal generated when the first proximity sensor 7 and / or the second proximity sensor 8 approaches the sensing baffle 5 is received, and sends a control command corresponding to the receiving result to the second controller 10 according to the receiving result; the second controller 10 controls the push rod motor 6 to extend so that at least one spring 2 is compressed or controls the push rod motor 6 to contract so that at least one spring 2 is stretched in response to the control command.

[0039] The durability test system further includes: a fixture 1, a hook 3 and a threaded screw 4. One end of the fixture 1 is fixedly connected to one end of each spring 2 in at least one spring 2, the other end of each spring 2 in at least one spring 2 is fixedly connected to one end of the hook 3, the other end of the hook 3 is fixedly connected to one end of the threaded screw 4, the other end of the threaded screw 4 is fixedly connected to the push rod end of the push rod motor 6, the communication port of the push rod motor 6 is electrically connected to the first communication port of the second controller 10, the second communication port of the second controller 10 is electrically connected to the first communication port of the first controller 9, the second communication port of the first controller 9 is electrically connected to the communication ports of the first proximity sensor 7 and the second proximity sensor 8, respectively, the induction baffle 5 is arranged on the threaded screw 4, and at least a part of the induction baffle 5 is located between the first proximity sensor 7 and the second proximity sensor 8.

[0040] In the embodiment of the present application, the other end of the fixture 1 is fixedly connected to the test equipment site or the test bench. Here, the fixed connection between the other end of the fixture 1 and the test equipment site or the test bench may include but is not limited to: bolt connection, welding and clamp fixation.

[0041] In an embodiment of the present application, one end of each spring 2 in at least one spring 2 is fixedly connected to the hook body of the hook 3, and the hook head of the hook 3 is fixedly connected to one end of the threaded screw 4. In the present application, the load is simulated by using two independent springs 2. At least one spring 2 is replaced according to the expected load. Specifically, the loads corresponding to different models of vehicles, different usage locations or different working conditions are different, and the spring 2 is reasonably selected to simulate the actual load. The fixed connection method between one end of each spring 2 in at least one spring 2 and the hook body of the hook 3 may include but is not limited to: threaded connection (such as through a nut and a screw), welding, adhesive connection and nested connection.

[0042] In the embodiment of the present application, the induction baffle 5 is adjusted to the desired position of the threaded screw 4. Here, the material of the induction baffle 5 can be metal or plastic, which is not limited here. The induction baffle 5 can be fixed on the threaded screw 4 by threaded connection or clamp.

[0043] In the embodiment of the present application, the fixed connection between the other end of the threaded screw 4 and the push rod end of the push rod motor 6 may include but is not limited to: threaded connection. Here, after the push rod motor 6 is started, it can drive the threaded screw 4 to do a reciprocating motion. At the same time, the spring 2 will apply a reverse pulling force to the threaded screw 4, thereby simulating the load force generated by the relevant structural parts of the actual vehicle on the push rod motor 6.

[0044] In the embodiment of the present application, the first proximity sensor 7 and the second proximity sensor 8 are placed opposite to each other, and the first proximity sensor 7 and the second proximity sensor 8 are separated by a desired distance. Here, the desired distance is determined according to the simulated actual vehicle load running distance.

[0045] In the embodiment of the present application, the second communication port of the first controller 9 is electrically connected to the communication ports of the first proximity sensor 7 and the second proximity sensor 8 through cables. Here, the first controller 9 is used to judge the switch signals collected by the first proximity sensor 7 and the second proximity sensor 8, and send control instructions to the second controller 10. The control instructions may include but are not limited to: a control instruction for retracting the push rod motor 6 and a control instruction for extending the push rod motor 6. As an example, the first controller 9 is a vehicle controller, and the second controller 10 is a motor drive controller.

[0046] In the embodiment of the present application, the second communication port of the second controller 10 is electrically connected to the first communication port of the first controller 9 via a CAN bus. Here, the second controller 10 is used to receive the control instructions sent by the first controller 9 and send corresponding operation instructions to the push rod motor 6. The operation instructions may include but are not limited to: a push rod motor 6 retraction instruction and a push rod motor 6 extension instruction. As an example, the second communication port of the second controller 10 is electrically connected to the first communication port of the first controller 9 via a pair of CAN buses.

[0047] In the embodiment of the present application, the communication port of the push rod motor 6 is electrically connected to the first communication port of the second controller 10 through a bridge line to realize the extension and compression control of the push rod motor 6. As an example, the communication port of the push rod motor 6 is electrically connected to the first communication port of the second controller 10 through two bridge lines to realize the extension and compression control of the push rod motor 6.

[0048] An embodiment of the present application provides a durability test system for a push rod motor. Through the system, springs 2 with different tensile forces in kilograms can be flexibly replaced to adapt to the push rod load requirements of various products in different usage positions and working conditions; at the same time, it has high reliability, and the durability of the motor is effectively verified through load configuration and telescopic distance consistent with the actual vehicle; in addition, it is easy to operate and efficient, and the telescopic distance of the push rod motor 6 can be quickly changed by adjusting the relative distance of the proximity sensor, simulating the actual vehicle usage conditions, thereby greatly improving the test efficiency.

[0049] Based on the same application concept, the present application also provides a method for testing the durability of a push rod motor. Figure 2 , Figure 2 One of the flow charts of a method for testing the durability of a push rod motor provided in an embodiment of the present application is shown.

[0050] like Figure 2As shown in, a durability test method for a push rod motor provided in an embodiment of the present application is applied to a durability test system;

[0051] The durability testing method comprises the following steps:

[0052] In step S101 , the first controller 9 determines whether a proximity signal generated when the first proximity sensor 7 and / or the second proximity sensor 8 approaches the sensing baffle 5 is received.

[0053] Before step S101, the durability test method further includes: putting the spring 2, the push rod motor 6 and the first proximity sensor 7 in an initialization state. Here, the initialization state of the spring 2 is a natural state without tension; the initialization state of the push rod motor 6 is that the extension position of the push rod motor 6 is consistent with the maximum extension position of the push rod motor 6 under the simulated real vehicle load; the initialization state of the first proximity sensor 7 is that it just senses the position of the sensing baffle 5.

[0054] In step S102, the first controller 9 sends a control command corresponding to the receiving result to the second controller 10 according to the receiving result. In response to the control command, the second controller 10 controls the push rod motor 6 to extend so that at least one spring 2 is compressed or controls the push rod motor 6 to contract so that at least one spring 2 is stretched.

[0055] See also Figure 3 , Figure 3 The second flowchart of a method for testing the durability of a push rod motor provided in an embodiment of the present application is shown.

[0056] like Figure 3 As shown in FIG. 1 , regarding step S102, in a specific implementation, as an example, the following steps may be included:

[0057] If the first controller 9 does not receive the proximity signal generated when the first proximity sensor 7 approaches the sensing baffle 5, the first controller 9 sends a first extension control instruction to the second controller 10, and the second controller 10 controls the push rod motor 6 to extend in response to the first extension control instruction, so that at least one spring 2 is compressed.

[0058] If the first controller 9 receives the proximity signal generated by the first proximity sensor 7 when it approaches the sensing baffle 5, the first controller 9 sends a first contraction control instruction to the second controller 10, and the second controller 10 controls the push rod motor 6 to contract in response to the first contraction control instruction, so that at least one spring 2 is stretched, and the first controller 9 determines whether it has received the proximity signal generated by the second proximity sensor 8 when it approaches the sensing baffle 5.

[0059] If the first controller 9 does not receive the proximity signal generated when the second proximity sensor 8 approaches the sensing baffle 5, the first controller 9 sends a second contraction control instruction to the second controller 10. The second controller 10 controls the push rod motor 6 to contract in response to the second contraction control instruction, so that at least one spring 2 is stretched.

[0060] If the first controller 9 receives a proximity signal generated when the second proximity sensor 8 approaches the sensing baffle 5, the first controller 9 sends a second extension control instruction to the second controller 10. The second controller 10 controls the push rod motor 6 to extend in response to the second extension control instruction, so that at least one spring 2 is extended and retracted.

[0061] An embodiment of the present application provides a durability test method for a push rod motor. Through the method, springs with different tensile forces in kilograms can be flexibly replaced to adapt to the push rod load requirements of various products in different usage positions and working conditions; at the same time, it has high reliability, and the durability of the motor is effectively verified through load configuration and telescopic distance consistent with the actual vehicle; in addition, it is easy to operate and efficient, and the telescopic distance of the push rod motor can be quickly changed by adjusting the relative distance of the proximity sensor, simulating the actual vehicle usage conditions, thereby greatly improving the test efficiency.

[0062] Based on the same application concept, the embodiments of the present application also provide a durability test device for a push rod motor corresponding to the durability test method for a push rod motor provided in the above embodiments. Since the principle of solving the problem by the device in the embodiments of the present application is similar to the durability test method for a push rod motor in the above embodiments of the present application, the implementation of the device can refer to the implementation of the method, and the repeated parts will not be repeated.

[0063] An embodiment of the present application provides a durability testing device for a push rod motor. Through the device, springs with different tensile forces in kilograms can be flexibly replaced to adapt to the push rod load requirements of various products in different usage positions and working conditions; at the same time, it has high reliability, and the durability performance of the motor is effectively verified through load configuration and telescopic distance consistent with the actual vehicle; in addition, it is easy to operate and efficient, and the telescopic distance of the push rod motor can be quickly changed by adjusting the relative distance of the proximity sensor, simulating the actual vehicle usage conditions, thereby greatly improving the test efficiency.

[0064] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, the specific working process of the system and device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. In the several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0065] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0066] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0067] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a non-volatile computer-readable storage medium that is executable by a processor. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc., various media that can store program codes.

[0068] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A durability test system for a push rod motor, characterized in that: The durability testing system comprises: a first controller, a second controller, a first proximity sensor, a second proximity sensor, an induction baffle, a push rod motor and at least one spring; Among them, the first controller determines whether it has received the proximity signal generated by the first proximity sensor and / or the second proximity sensor when approaching the sensing baffle, and sends a control command corresponding to the receiving result to the second controller according to the receiving result; the second controller responds to the control command to control the push rod motor to extend so that at least one spring is compressed or controls the push rod motor to contract so that at least one spring is stretched.

2. The durability testing system according to claim 1, characterized in that: The durability testing system also includes: a fixture, a hook and a threaded screw; Among them, one end of the fixing device is fixedly connected to one end of each spring in at least one spring, the other end of each spring in at least one spring is fixedly connected to one end of the hook, the other end of the hook is fixedly connected to one end of the threaded screw, the other end of the threaded screw is fixedly connected to the push rod end of the push rod motor, the communication port of the push rod motor is electrically connected to the first communication port of the second controller, the second communication port of the second controller is electrically connected to the first communication port of the first controller, the second communication port of the first controller is electrically connected to the communication ports of the first proximity sensor and the second proximity sensor, respectively, the sensing baffle is arranged on the threaded screw, and at least a portion of the sensing baffle is located between the first proximity sensor and the second proximity sensor.

3. The durability testing system according to claim 2, characterized in that: One end of each spring in the at least one spring is fixedly connected to the hook body of the hook, and the hook head of the hook is fixedly connected to one end of the threaded screw rod.

4. The durability testing system according to claim 2, characterized in that: The induction flap is adjusted to the desired position of the threaded spindle.

5. The durability testing system according to claim 2, characterized in that: The first proximity sensor and the second proximity sensor are positioned opposite to each other, and are spaced apart from each other by a desired distance.

6. The durability testing system according to claim 2, characterized in that: The communication port of the push rod motor is electrically connected to the first communication port of the second controller through a bridge line.

7. The durability testing system according to claim 2, characterized in that: The second communication port of the second controller is electrically connected to the first communication port of the first controller through the CAN bus.

8. The durability testing system according to claim 2, characterized in that: The second communication port of the first controller is electrically connected to the communication ports of the first proximity sensor and the second proximity sensor through cables.

9. A method for testing the durability of a push rod motor, characterized in that: The durability testing method is applied to the durability testing system as claimed in any one of claims 1 to 8; The durability test method includes: The first controller determines whether a proximity signal generated when the first proximity sensor and / or the second proximity sensor approaches the sensing baffle is received; The first controller sends a control command corresponding to the receiving result to the second controller according to the receiving result. In response to the control command, the second controller controls the push rod motor to extend so that at least one spring is compressed or controls the push rod motor to contract so that at least one spring is stretched.

10. The durability testing method according to claim 9, characterized in that: The first controller sends a control command corresponding to the receiving result to the second controller according to the receiving result, and the second controller controls the push rod motor to extend so that at least one spring is compressed or controls the push rod motor to contract so that at least one spring is stretched in response to the control command, including: If the first controller does not receive the proximity signal generated when the first proximity sensor approaches the sensing baffle, the first controller sends a first extension control instruction to the second controller, and the second controller controls the push rod motor to extend in response to the first extension control instruction, so that at least one spring is compressed; If the first controller receives a proximity signal generated when the first proximity sensor approaches the sensing baffle, the first controller sends a first contraction control instruction to the second controller, and the second controller controls the push rod motor to contract in response to the first contraction control instruction, so that at least one spring is stretched, and the first controller determines whether it has received a proximity signal generated when the second proximity sensor approaches the sensing baffle; If the first controller does not receive the proximity signal generated when the second proximity sensor approaches the sensing baffle, the first controller sends a second contraction control instruction to the second controller, and the second controller controls the push rod motor to contract in response to the second contraction control instruction, so that at least one spring is stretched; If the first controller receives a proximity signal generated when the second proximity sensor approaches the sensing baffle, the first controller sends a second extension control instruction to the second controller, and the second controller controls the push rod motor to extend in response to the second extension control instruction, so that at least one spring is extended and retracted.