Torsion spring fatigue testing machine

Abstract

The utility model provides a torsional spring fatigue testing machine which comprises a transmission mechanism, a driving gear, a sleeve rod and an indicating pointer, the driving gear is in transmission connection with the transmission mechanism, the center axis of the driving gear is marked as a first shaft, the driving gear is provided with an observation surface perpendicular to the first shaft, and the observation surface is provided with a plurality of scale grooves. The torsion spring fatigue testing machine is characterized in that a plurality of scale grooves are formed around the center axis of the driving gear at equal intervals, the driving gear is rotationally connected with the sleeve rod, the center axis of the sleeve rod coincides with the first shaft, the torsion spring is arranged on the sleeve rod in a sleeving mode, and the indicating pointer corresponds to the scale grooves. An operator can directly observe the position of the pointer on the scale groove to determine the rotation angle of the driving gear without depending on complex electronic equipment and sensors. Therefore, the structure and the maintenance of the equipment are simplified, and the reliability and the operation convenience of the testing machine are also improved.

Description

Technical Field

[0001] The present application relates to the field of torsion spring fatigue testing, and in particular to a torsion spring fatigue testing machine. Background Art

[0002] Conventional torsion spring fatigue testing machines are usually used to test the fatigue performance of torsion springs under different stresses. These testing machines include a transmission mechanism, in which a driving gear is connected to a sleeve rod through the transmission mechanism to achieve the rotation of the torsion spring.

[0003] However, in some traditional designs, an encoder installed on the drive gear or transmission mechanism is usually used to monitor the rotation of the drive gear in real time. The encoder can convert the rotation angle into an electrical signal, which is processed and displayed by electronic equipment, or transmit the rotation of the drive gear to an indicator or counter, thereby indirectly displaying the rotation angle of the drive gear. These devices rely on electronic equipment to measure angles. When these electronic equipment are damaged or have errors, they are difficult to repair and inconvenient to replace, which increases the cost during use.

[0004] To this end, it is necessary to design a torsion spring fatigue testing machine that can visually observe how many degrees the driving gear has rotated, thereby not relying on electronic equipment and accurately evaluating the torsion angle and deformation of the torsion spring to solve the problem that some traditional torsion spring fatigue testing machines use electronic equipment to measure angles. When these electronic equipment are damaged or have errors, they are difficult to repair and inconvenient to replace. Utility Model Content

[0005] In view of this, it is necessary to provide a torsion spring fatigue testing machine with an indicator needle and a scale groove to solve the above problems.

[0006] The embodiment of the present application provides a torsion spring fatigue testing machine, comprising:

[0007] Transmission mechanism;

[0008] A driving gear, wherein the driving gear is drivingly connected to the transmission mechanism, wherein the central axis of the driving gear is denoted as a first axis, and the driving gear has an observation surface perpendicular to the first axis, wherein a plurality of scale grooves are provided on the observation surface, and wherein the plurality of scale grooves are arranged at equal intervals around the central axis of the driving gear;

[0009] A sleeve rod, the driving gear is rotatably connected to the sleeve rod, the central axis of the sleeve rod coincides with the first axis, and the torsion spring is sleeved on the sleeve rod;

[0010] An indicator needle, wherein the indicator needle corresponds to the scale groove.

[0011] In at least one embodiment of the present application, the torsion spring fatigue testing machine further includes a first fixing member and a second fixing member disposed on the driving gear, one end of the same torsion spring is fixed to the first fixing member, and the other end of the torsion spring is fixed to the second fixing member.

[0012] In at least one embodiment of the present application, the torsion spring fatigue testing machine further includes a clamping mechanism, and the clamping mechanism is fixedly connected to one end of the sleeve rod.

[0013] In at least one embodiment of the present application, the torsion spring fatigue testing machine further includes a base plate, and the sleeve rod, the first fixing member, the clamping mechanism and the transmission mechanism are all detachably connected to the base plate.

[0014] In at least one embodiment of the present application, the transmission mechanism includes a motor disposed on the substrate and a reduction gear transmission-connected to the motor, and the driving gear is transmission-connected to the reduction gear.

[0015] In at least one embodiment of the present application, the first fixing member includes a clamping plate provided on the substrate and a fixing block detachably connected to the clamping plate, and one end of the torsion spring is fixed between the clamping plate and the fixing block.

[0016] In at least one embodiment of the present application, a support plate is provided between the motor and the substrate, and the motor is detachably connected to the substrate via the support plate.

[0017] In at least one embodiment of the present application, the support plate is connected to the base plate by bolts.

[0018] In at least one embodiment of the present application, a bearing plate is provided on the support plate, and one end of the sleeve rod is provided on the bearing plate.

[0019] In at least one embodiment of the present application, the indicator needle is bolted to the bearing plate.

[0020] The torsion spring fatigue testing machine provided above is designed with a scale groove and an indicator needle, and the operator can directly determine the rotation angle of the driving gear by observing the position of the indicator needle on the scale groove without relying on complex electronic equipment and sensors. This not only simplifies the structure and maintenance of the equipment, but also improves the reliability of the testing machine and the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural stereogram of a torsion spring fatigue testing machine;

[0022] Figure 2 This is a structural stereogram of a torsion spring fatigue testing machine;

[0023] Figure 3 This is a three-dimensional diagram of the structure of the torsion spring fatigue testing machine.

[0024] Main component symbols

[0025] 100. Torsion spring fatigue testing machine; 1. Transmission mechanism; 11. Motor; 12. Reduction gear; 13. Support plate; 2. Driving gear; 21. Observation surface; 22. Scale groove; 3. Sleeve rod; 4. Indicator needle; 5. First fixing member; 51. Clamping plate; 52. Fixing block; 6. Second fixing member; 7. Clamping mechanism; 8. Base plate; 9. Bearing plate. DETAILED DESCRIPTION

[0026] The embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0027] It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "located on" another component, it may be directly located on the other component or there may be a central component at the same time. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and similar expressions used herein are for illustrative purposes only.

[0028] The embodiment of the present application provides a torsion spring fatigue testing machine, comprising:

[0029] Transmission mechanism;

[0030] A driving gear, wherein the driving gear is drivingly connected to the transmission mechanism, wherein the central axis of the driving gear is denoted as a first axis, and the driving gear has an observation surface perpendicular to the first axis, wherein a plurality of scale grooves are provided on the observation surface, and wherein the plurality of scale grooves are arranged at equal intervals around the central axis of the driving gear;

[0031] A sleeve rod, the driving gear is rotatably connected to the sleeve rod, the central axis of the sleeve rod coincides with the first axis, and the torsion spring is sleeved on the sleeve rod;

[0032] The indicator needle corresponds to the scale groove. The torsion spring fatigue testing machine provided above is designed with a scale groove and an indicator needle. The operator can directly determine the rotation angle of the driving gear by observing the position of the indicator needle on the scale groove without relying on complex electronic equipment and sensors. In this way, not only the structure and maintenance of the equipment are simplified, but also the reliability and convenience of operation of the testing machine are improved.

[0033] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0034] See also Figure 1-Figure 3 The embodiment of the present application provides a torsion spring fatigue testing machine 100, comprising a transmission mechanism 1, a driving gear 2, a sleeve rod 3 and an indicator needle 4. The driving gear 2 is in transmission connection with the transmission mechanism 1. The central axis of the driving gear 2 is denoted as a first axis. The driving gear 2 has an observation surface 21 perpendicular to the first axis. The observation surface 21 is provided with a plurality of scale grooves 22. The plurality of scale grooves 22 are arranged at equal intervals around the central axis of the driving gear 2. The driving gear 2 is rotationally connected with the sleeve rod 3. The central axis of the sleeve rod 3 coincides with the first axis. The torsion spring is sleeved on the sleeve rod 3. The indicator needle 4 corresponds to the scale groove 22.

[0035] Specifically, the transmission mechanism 1 is connected to the driving gear 2 so that it can be transmitted through the transmission mechanism 1. The central axis of the driving gear 2 is defined as the first axis, which is connected to the transmission mechanism 1 in transmission. This design ensures that the driving gear 2 can stably receive the transmission force and ensures the accuracy and reliability of the transmission. In the fatigue test of the torsion spring, this is crucial to ensure the accuracy of the test. The driving gear 2 has an observation surface 21 perpendicular to the central axis, on which a plurality of scale grooves 22 are opened, and these scale grooves 22 are arranged at equal intervals around the central axis of the driving gear 2. The setting of the observation surface 21 and the scale grooves 22 allows the operator to intuitively observe the rotation angle of the driving gear 2. This intuitive measurement method eliminates the dependence on electronic equipment and reduces the possibility of equipment failure and maintenance. The sleeve rod 3 is rotationally connected to the driving gear 2, and their central axes coincide. The torsion spring is mounted on the sleeve rod 3 for torsion testing. This ensures that the torsion spring can be torsion tested in a controllable manner and ensures the stability and repeatability of the test. Through this design, the fatigue performance of the torsion spring under different conditions can be effectively evaluated. An indicator needle 4 is provided, which corresponds to the scale groove 22 of the drive gear 2 and is used to indicate the rotation angle of the drive gear 2. The use of the indicator needle 4 enables the operator to quickly and accurately read the angle information of the drive gear 2 without the need for additional measuring equipment or complicated calibration procedures.

[0036] Furthermore, the indicator needle 4 is installed on a fixed part of the testing machine, usually next to or above the driving gear 2, to ensure that it can stably point to the observation surface 21 of the driving gear 2. The main function of the indicator needle 4 is to indicate the current angle according to the change in position of the scale groove 22 on the observation surface 21 of the driving gear 2 when the driving gear 2 rotates. The observation surface 21 of the driving gear 2 is perpendicular to its central axis, and is provided with a plurality of scale grooves 22, which are usually arranged at equal intervals around the central axis of the driving gear 2. The presence of the scale grooves 22 enables the indicator needle 4 to correspond to different angular positions on the observation surface 21 when the driving gear 2 rotates. Each scale groove 22 represents a specific angle or angle range, and the operator understands the current rotation angle of the driving gear 2 by observing the scale groove 22 to which the indicator needle 4 points.

[0037] In a specific example, the torsion spring fatigue testing machine 100 further includes a first fixing member 5 and a second fixing member 6 disposed on the driving gear 2 , and one end of the same torsion spring is fixed to the first fixing member 5 , and the other end of the torsion spring is fixed to the second fixing member 6 .

[0038] Specifically, the first fixing member 5 is a fixed point in the test machine, usually located on the test bench or base plate 8. Its main function is to fix one end of the torsion spring to ensure that the end of the torsion spring will not move or loosen during the test. One end of the torsion spring is firmly fixed to the first fixing member 5, and can be fixed by a clamping plate 51 or other fixing device to ensure that the torsion spring maintains a stable position and tension during the test. The second fixing member 6 is installed on the driving gear 2, usually also on the structural frame of the testing machine or other appropriate position. Its main function is to fix the other end of the torsion spring to ensure that the other end of the torsion spring also remains fixed during the test. The other end of the torsion spring is fixed by the second fixing member 6, and a similar clamping plate 51 or fixing block 52 can also be used to ensure the fixity and stability of the torsion spring. When performing a torsion spring fatigue test, the first fixing member 5 and the second fixing member 6 are used to ensure that the torsion spring maintains a fixed end point during the test. In this way, when the driving gear 2 rotates, the torsion spring can be twisted at a certain tension and angle, thereby simulating the behavior and performance of the torsion spring in actual use. This design is suitable for a variety of industrial applications where the fatigue life, strength and deformation characteristics of torsion springs need to be accurately measured and recorded, such as in the automotive manufacturing, aerospace and mechanical engineering fields.

[0039] In a specific example, the torsion spring fatigue testing machine 100 further includes a clamping mechanism 7 , and the clamping mechanism 7 is fixedly connected to one end of the sleeve rod 3 .

[0040] Specifically, the clamping mechanism 7 is a design for fixing one end of the sleeve rod 3 in the torsion spring test. The clamping mechanism 7 is usually installed on the structural frame or base plate 8 of the torsion spring fatigue testing machine 100, and is tightly connected to one end of the sleeve rod 3. The clamping mechanism 7 firmly fixes one end of the sleeve rod 3 to the structure of the testing machine by a mechanical or bolt fixing method. The fixed sleeve rod 3 serves as the main axis in the test, supports the rotation of the drive gear 2, and allows the torsion spring to be sleeved on the sleeve rod 3. The sleeve rod 3 provides a stable support platform to prevent the torsion spring from unnecessary vibration or movement due to twisting during the test, while protecting the torsion spring from additional stress or damage. The existence of the clamping mechanism 7 ensures the stability and accuracy of the sleeve rod 3 during the test. A properly installed and adjusted clamping mechanism 7 can simplify the preparation and operation of the test, improve the repeatability of the test and the reliability of the results.

[0041] In a specific example, the torsion spring fatigue testing machine 100 further includes a base plate 8 , and the sleeve rod 3 , the first fixing member 5 , the clamping mechanism 7 and the transmission mechanism 1 can all be detachably connected to the base plate 8 .

[0042] Specifically, the base plate 8 is an important component of the torsion spring fatigue testing machine 100, and is usually located at the bottom of the testing machine or the bottom position of the structural frame. The main function of the base plate 8 is to provide a stable support platform for installing and fixing various functional components of the testing machine, including the sleeve rod 3, the first fixing member 5, the clamping mechanism 7 and the transmission mechanism 1. The base plate 8 is designed to be detachably connected, which means that the various key components of the testing machine (such as the sleeve rod 3, the first fixing member 5, the clamping mechanism 7 and the transmission mechanism 1) can be easily installed and disassembled. These components are usually connected to the base plate 8 by screws, nuts, pins or other fixing devices to ensure that they remain in a stable and firm position during the test. When performing a torsion spring fatigue test, the design of the base plate 8 allows the operator to quickly adjust the configuration of the testing machine or perform maintenance and cleaning as needed. This design feature enables the testing machine to respond flexibly to different test requirements, such as replacing torsion springs of different specifications or adjusting test conditions, and also facilitates maintenance personnel to regularly inspect and repair the testing machine.

[0043] In a specific example, the transmission mechanism 1 includes a motor 11 disposed on the substrate 8 and a reduction gear 12 transmission-connected to the motor 11 , and the driving gear 2 is transmission-connected to the reduction gear 12 .

[0044] Specifically, the motor 11 is installed on the base plate 8 of the torsion spring fatigue testing machine 100 as the core component of the transmission mechanism 1. The motor 11 is responsible for providing driving force and transmitting power to the subsequent transmission device through rotation. The reduction gear 12 is located at the end of the output shaft of the motor 11 or is directly connected to the motor 11. Its main function is to reduce the kinetic energy of the high-speed rotation of the motor 11. This reduction effect is achieved by the cooperation between the reduction gear 12 and the driving gear 2. The driving gear 2 generally refers to a gear with a large number of teeth, which is used in conjunction with the reduction gear 12 (with a small number of teeth) to achieve a reduction effect. The output shaft of the motor 11 is connected to the reduction gear 12 through an appropriate transmission method (usually a gear transmission or a synchronous belt transmission). This connection ensures that the rotation of the motor 11 can be effectively transmitted to the reduction gear 12. The output shaft of the reduction gear 12 is connected to the driving gear 2 through a gear or other transmission device. This transmission connection enables the decelerated power to be transmitted to the driving gear 2 at an appropriate speed and torque, thereby driving the sleeve rod 3 and the torsion spring for testing. When performing a fatigue test on a torsion spring, the motor 11 converts electrical energy into mechanical energy through the transmission mechanism 1, thereby driving the driving gear 2 to rotate. This design enables the test machine to accurately control the torsion speed and cycle of the torsion spring to simulate the mechanical environment in actual use. The stability and efficiency of the transmission mechanism 1 directly affect the performance and accuracy of the test machine, especially when running for a long time and operating at a high frequency, which can ensure the accuracy and reliability of the test results.

[0045] In a specific example, the first fixing member 5 includes a clamping plate 51 disposed on the base plate 8 and a fixing block 52 detachably connected to the clamping plate 51 , and one end of the torsion spring is fixed between the clamping plate 51 and the fixing block 52 .

[0046] Specifically, the clamping plate 51 is the main part of the first fixing member 5, and is usually installed on the base plate 8 of the torsion spring fatigue testing machine 100. It provides a platform and support for fixing one end of the torsion spring. The fixing block 52 is detachably connected to the clamping plate 51, usually by screws, nuts or other similar connection methods. The main function of the fixing block 52 is to firmly fix one end of the torsion spring to ensure that it does not move or loosen during the test. One end of the torsion spring is clamped between the clamping plate 51 and the fixing block 52, and the stability of the torsion spring during the test is ensured by appropriate clamping force and fixing device. The fixing device between the clamping plate 51 and the fixing block 52 is usually designed to be detachable, so that the operator can adjust or replace the torsion spring as needed, and it is also convenient for the maintenance and maintenance of the testing machine. When performing a torsion spring fatigue test, the design of the first fixing member 5 ensures that one end of the torsion spring is firmly fixed so that the torsion spring can accurately withstand and transmit force during the test. This design is suitable for various application scenarios where the fatigue life and performance of torsion springs need to be evaluated, such as testing torsion springs in suspension systems in automobile manufacturing, or evaluating the stability and reliability of torsion springs under complex working conditions in construction machinery.

[0047] In a specific example, a support plate 13 is provided between the motor 11 and the base plate 8 , and the motor 11 is detachably connected to the base plate 8 via the support plate 13 .

[0048] Specifically, the support plate 13 is located at the bottom or side of the motor 11, serving as a connecting support structure between the motor 11 and the substrate 8. The main function of the support plate 13 is to provide a stable support platform so that the motor 11 can be safely and firmly installed on the substrate 8 of the torsion spring fatigue testing machine 100. The motor 11 is detachably connected to the substrate 8 through the support plate 13, and is usually fixed by means of screws or bolts. This design allows the motor 11 to be easily installed and disassembled, making it convenient to maintain and replace the motor 11. The design of the support plate 13 ensures that the motor 11 will not move due to vibration or external forces during operation, thereby ensuring the stability and safety of the test process. In the torsion spring fatigue test, the motor 11 is installed on the substrate 8 through the support plate 13, and the various components in the test, such as the transmission device and the drive gear 2, are driven by controlling the speed and torque of the motor 11. This design is suitable for various application scenarios that require long-term testing or frequent replacement of the motor 11, such as product testing in the research and development stage and quality control in production.

[0049] In a specific example, the support plate 13 is connected to the base plate 8 by bolts.

[0050] Specifically, the support plate 13 is connected to the base plate 8 by bolts. This connection method generally includes pre-setting holes on the support plate 13 and the base plate 8 to facilitate the passage and fixation of the bolts. Bolt connection provides a stable and reliable fixing method to ensure that the support plate 13 will not move or loosen due to vibration or external forces when the test machine is running. The bolt connection can effectively withstand the pressure and load during the operation of the test machine, ensuring the safe operation of the support plate 13 and the motor 11. The bolt connection allows the support plate 13 to be relatively easy to disassemble and reinstall. This is particularly important in situations where maintenance, replacement or adjustment is required, such as replacing the motor 11 or maintaining other components on the base plate 8. Bolt connection is suitable for various mechanical structures that require stable support and fixation, especially in test processes that require precision and reliability, such as the connection of the motor 11 support plate 13 in the torsion spring fatigue tester 100. This design not only enhances the structural strength and stability of the test machine, but also simplifies the operation process of equipment maintenance and repair, and improves test efficiency and operability.

[0051] In a specific example, a bearing plate 9 is disposed on the support plate 13 , and one end of the sleeve rod 3 is disposed on the bearing plate 9 .

[0052] Specifically, the bearing plate 9 is mounted on the support plate 13, usually at a specific position of the support plate 13. It is designed to support and fix one end of the sleeve rod 3. The main function of the bearing plate 9 is to provide a stable support platform. One end of the sleeve rod 3 is mounted on the bearing plate 9 to ensure the stability and controllability of the sleeve rod 3 during the test. In the torsion spring fatigue test, the design of the bearing plate 9 can effectively support the sleeve rod 3 and ensure that the sleeve rod 3 will not loosen due to the rotation of the drive gear 2 or the force between the torsion spring and the sleeve rod 3, so as to simulate the stable working conditions of the torsion spring in actual applications. This design helps to improve the accuracy and repeatability of the test and ensure the accuracy and reliability of the test results.

[0053] In a specific example, the indicator needle 4 is bolted to the bearing plate 9 .

[0054] Specifically, the indicator needle 4 is connected to the bearing plate 9 by bolts. Usually, one end of the indicator needle 4 is designed with a threaded hole or other structure suitable for fixing the bolt, so as to dock with the corresponding hole on the bearing plate 9. The bolt connection provides a stable and reliable fixing method to ensure that the indicator needle 4 will not move or loosen due to vibration or external forces during the test. The correctly installed indicator needle 4 can accurately indicate the rotation angle of the drive gear 2, which is very important for evaluating the deformation and torsion angle of the torsion spring during the test.

[0055] The above is only an implementation method of the present application. It should be pointed out that a person skilled in the art can make improvements without departing from the inventive concept of the present application, but these improvements are within the scope of protection of the present application.

Claims

1. A torsion spring fatigue testing machine, characterized in that: include: Transmission mechanism; A driving gear, wherein the driving gear is drivingly connected to the transmission mechanism, wherein the central axis of the driving gear is denoted as a first axis, and the driving gear has an observation surface perpendicular to the first axis, wherein a plurality of scale grooves are provided on the observation surface, and wherein the plurality of scale grooves are arranged at equal intervals around the central axis of the driving gear; A sleeve rod, the driving gear is rotatably connected to the sleeve rod, the central axis of the sleeve rod coincides with the first axis, and the torsion spring is sleeved on the sleeve rod; An indicator needle, wherein the indicator needle corresponds to the scale groove.

2. The torsion spring fatigue testing machine according to claim 1, characterized in that: The torsion spring fatigue testing machine also includes a first fixing member and a second fixing member arranged on the driving gear, one end of the torsion spring is fixed to the first fixing member, and the other end of the same torsion spring is fixed to the second fixing member.

3. The torsion spring fatigue testing machine according to claim 2, characterized in that: The torsion spring fatigue testing machine also includes a clamping mechanism, and the clamping mechanism is fixedly connected to one end of the sleeve rod.

4. The torsion spring fatigue testing machine according to claim 3, characterized in that: The torsion spring fatigue testing machine also includes a base plate, and the sleeve rod, the first fixing member, the clamping mechanism and the transmission mechanism can be detachably connected to the base plate.

5. The torsion spring fatigue testing machine according to claim 4, characterized in that: The transmission mechanism comprises a motor arranged on the base plate and a reduction gear transmission-connected to the motor, and the driving gear is transmission-connected to the reduction gear.

6. The torsion spring fatigue testing machine according to claim 4, characterized in that: The first fixing member comprises a clamping plate arranged on the base plate and a fixing block detachably connected to the clamping plate, and one end of the torsion spring is fixed between the clamping plate and the fixing block.

7. The torsion spring fatigue testing machine according to claim 5, characterized in that: A support plate is provided between the motor and the base plate, and the motor is detachably connected to the base plate through the support plate.

8. The torsion spring fatigue testing machine according to claim 7, characterized in that: The support plate is connected to the base plate by bolts.

9. The torsion spring fatigue testing machine according to claim 7, characterized in that: A bearing plate is disposed on the support plate, and one end of the sleeve rod is disposed on the bearing plate.

10. The torsion spring fatigue testing machine according to claim 9, characterized in that: The indicator needle bolt is connected to the bearing plate.

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