Fatigue simulation testing device for automobile parts

Abstract

The utility model relates to the technical field of test equipment, in particular to an automobile part fatigue simulation test device, which comprises a bottom plate. The device comprises a bottom plate and further comprises a heat preservation shell, heat insulation plates, test cavities, a heating plate, a temperature sensor, a positioning plate, a cover plate, an air cylinder and a pressing plate, the heat preservation shell is connected to the top of the bottom plate, the two heat insulation plates are connected to the rear side of the interior of the heat preservation shell and divide the interior of the heat preservation shell into three test cavities, and the heating plate is installed on the left side of the interior of each test cavity; a temperature sensor is mounted on the right side in the test cavity; through the arrangement of the test cavity, the heating plate, the temperature sensor, the cylinder and the pressing plate, the heating plate can cooperate with the temperature sensor to control the temperature in the test cavity, and the cylinder can drive the pressing plate to test the fatigue of the test spring. The arrangement of the three test cavities can test the fatigue of the same test spring at different temperatures, so that the reliability of the test result is improved.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a fatigue simulation testing device for automotive parts. Background Technology

[0002] Automotive parts refer to the basic components and accessories that make up a car as a whole and its various functional units. These parts cover many aspects such as the engine, transmission system, braking system, suspension system, body, and electrical system. They are an important part of the normal operation and performance guarantee of a car. During the normal use and maintenance of the vehicle, these parts need to withstand various complex loads and stresses, such as alternating stress, vibration, and impact. Fatigue testing is an important means of evaluating the durability and reliability of automotive parts in long-term use. Fatigue testing detects the fatigue life of parts by simulating repeated loading and unloading processes in the actual use environment.

[0003] Some existing fatigue testing devices for automotive parts can only test the spring by applying stress to it in a reciprocating manner when testing the fatigue of the spring. They cannot control the temperature of the spring during the test. The performance and fatigue of the spring will change under different temperatures.

[0004] Therefore, existing fatigue testing devices for automotive parts can only apply stress to the spring during fatigue testing, without controlling the temperature. This leads to variations in spring performance and fatigue levels under different temperatures. To address this, a fatigue simulation testing device for automotive parts can be designed. This device includes a test chamber, a heating plate, a temperature sensor, a cylinder, and a pressing plate. The heating plate, in conjunction with the temperature sensor, controls the temperature inside the test chamber. The cylinder drives the pressing plate to perform fatigue testing on the spring. The three test chambers allow for testing the fatigue of the same spring at different temperatures, improving the reliability of the test results. Utility Model Content

[0005] To overcome the problem that some existing fatigue testing devices for automotive parts can only test the spring by applying stress in a single way when testing the fatigue of the spring, and cannot control the temperature of the spring during the test, the spring performance and fatigue will change under different temperatures.

[0006] The technical solution of this utility model is as follows: a fatigue simulation testing device for automotive parts, including a base plate; it also includes a heat insulation shell, a heat insulation plate, a test chamber, a heating plate, a temperature sensor, a positioning plate, a cover plate, cylinders, and pressing plates. The top of the base plate is connected to the heat insulation shell, and two heat insulation plates are connected to the rear side of the interior of the heat insulation shell. The two heat insulation plates divide the interior of the heat insulation shell into three test chambers. A heating plate is installed on the left side of the interior of the test chamber, and a temperature sensor is installed on the right side of the interior of the test chamber. A positioning groove is opened at the bottom of the interior of the test chamber, and a positioning plate is set inside the positioning groove. A test spring is set at the upper end of the positioning plate, and a cover plate is set at the upper end of the test spring. Three cylinders are installed on the top of the heat insulation shell, and the output end of the cylinders is connected to a pressing plate. The three pressing plates are respectively located at the upper ends of the three cover plates.

[0007] Preferably, the test spring is placed between the positioning plate and the cover plate, and then the positioning plate is placed in the positioning groove. The heating plate and the cylinder are activated. The heating plate can heat the inside of the test chamber. The heating plate, together with the temperature sensor, can control the temperature inside the test chamber within a specified range. The cylinder can drive the pressing plate to move up and down reciprocally. The pressing plate can then pass through the cover plate to perform fatigue testing on the test spring. The setting of three test chambers allows personnel to test the fatigue of the same test spring at different temperatures, improving the reliability of the test results.

[0008] Preferably, the top of the positioning plate has a placement groove one, the bottom of the cover plate has a placement groove two, and the test spring is set between the placement groove one and the placement groove two.

[0009] Preferably, the top four corners of the positioning plate are connected to limit rods, and the upper ends of the limit rods pass through the cover plate and connect to the limit plate.

[0010] Preferably, the upper outer end of the limiting rod is provided with a thread, and a nut is provided on the outer side of the thread, with the nut located at the upper end of the cover plate.

[0011] Preferably, the front of the insulation shell has three sealed doors, and the upper part of the front of the sealed doors has an observation window.

[0012] Preferably, the bottom of the base plate is connected to four support legs, which are located at the four corners of the bottom of the base plate.

[0013] Preferably, a control panel is installed on the right side of the insulation shell, and the control panel is electrically connected to the heating plate, temperature sensor and cylinder.

[0014] The beneficial effects of this utility model are:

[0015] 1. By setting up an insulation shell, insulation plate, test chamber, heating plate, temperature sensor, positioning plate, cover plate, cylinder, and pressing plate, the test spring is placed between the positioning plate and the cover plate. Then, the positioning plate is placed in the positioning groove. The heating plate and cylinder are activated. The heating plate can heat the inside of the test chamber. The heating plate, together with the temperature sensor, can control the temperature inside the test chamber within a specified range. The cylinder can drive the pressing plate to move up and down reciprocally. The pressing plate can then perform fatigue testing on the test spring through the cover plate. The setting of three test chambers allows personnel to test the fatigue of the same test spring at different temperatures, improving the reliability of the test results. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the fatigue simulation testing device for automotive parts according to this utility model.

[0017] Figure 2 The diagram shown is a three-dimensional structural representation of the internal structure of the automotive parts fatigue simulation testing device of this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional cross-sectional view of the fatigue simulation testing device for automotive parts according to this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the positioning plate of the automotive parts fatigue simulation testing device of this utility model.

[0020] Figure 5 The diagram shown is a three-dimensional structural diagram of the bottom of the cover plate of the automotive parts fatigue simulation testing device of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Insulation shell; 3. Insulation plate; 4. Test chamber; 5. Heating plate; 6. Temperature sensor; 7. Positioning slot; 8. Positioning plate; 9. Test spring; 10. Cover plate; 11. Cylinder; 12. Pressing plate; 13. Placement slot one; 14. Placement slot two; 15. Limiting rod; 16. Thread; 17. Nut; 18. Limiting plate; 19. Sealing door; 20. Observation window; 21. Support leg; 22. Control panel. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5This utility model provides an embodiment of an automotive parts fatigue simulation testing device, including a base plate 1; it also includes a heat insulation shell 2, a heat insulation plate 3, a test chamber 4, a heating plate 5, a temperature sensor 6, a positioning plate 8, a cover plate 10, a cylinder 11, and a pressing plate 12. The top of the base plate 1 is connected to the heat insulation shell 2. Two heat insulation plates 3 are connected to the rear side of the interior of the heat insulation shell 2, dividing the interior of the heat insulation shell 2 into three test chambers 4. A heating plate 5 is installed on the left side of the interior of the test chamber 4, and a temperature sensor 6 is installed on the right side of the interior of the test chamber 4. A positioning groove 7 is opened at the bottom of the interior of the test chamber 4, and a positioning plate 8 is set inside the positioning groove 7. A test spring 9 is set at the upper end of the positioning plate 8, and a cover plate 10 is set at the upper end of the test spring 9. The top of the heat insulation shell 2... The unit is equipped with three cylinders 11, and the output end of each cylinder 11 is connected to a pressing plate 12. The three pressing plates 12 are located on the upper ends of three cover plates 10 respectively. The test spring 9 is placed between the positioning plate 8 and the cover plate 10, and then the positioning plate 8 is placed in the positioning groove 7. The heating plate 5 and the cylinders 11 are activated. The heating plate 5 can heat the inside of the test chamber 4. The heating plate 5, together with the temperature sensor 6, can control the temperature inside the test chamber 4 within a specified range. The cylinders 11 can drive the pressing plates 12 to move up and down reciprocally. The pressing plates 12 can then perform fatigue testing on the test spring 9 through the cover plate 10. The setting of three test chambers 4 allows personnel to test the fatigue of the same test spring 9 at different temperatures, improving the reliability of the test results.

[0024] Please see Figures 4-5 In this embodiment, the top of the positioning plate 8 is provided with a placement groove 13, and the bottom of the cover plate 10 is provided with a placement groove 14. The test spring 9 is disposed between the placement groove 13 and the placement groove 14. Limiting rods 15 are connected to the four corners of the top of the positioning plate 8. The upper end of the limiting rod 15 passes through the cover plate 10 and connects to the limiting plate 18. The upper outer end of the limiting rod 15 is provided with a thread 16, and a nut 17 is provided on the outer side of the thread 16. The nut 17 is located at the upper end of the cover plate 10. The test spring 9 is placed in the positioning plate 8 on the positioning groove 7, and then... Cover the test spring 9 with the cover plate 10 through the placement groove 14. Rotate the nut 17. The nut 17 can move downward due to the action of the thread 16. Rotate the nut 17 to the upper surface of the cover plate 10. At this time, the nut 17 can limit the cover plate 10, ensuring the stability of the subsequent test of the test spring 9. The setting of the limiting rod 15 can limit the cover plate 10, so that the cover plate 10 can move up and down smoothly. The setting of the limiting plate 18 can limit the nut 17, which can prevent the nut 17 from being lost.

[0025] Please see Figure 1In this embodiment, the front of the insulation shell 2 has three sealed doors 19, and the upper end of the front of the sealed doors 19 has an observation window 20. The bottom of the base plate 1 is connected to four support legs 21, which are located at the four corners of the bottom of the base plate 1. The right side of the insulation shell 2 is equipped with a control panel 22, which is electrically connected to the heating plate 5, the temperature sensor 6, and the cylinder 11. The control panel 22 can control the heating plate 5, the temperature sensor 6, and the cylinder 11. The support legs 21 can support the device. The sealed doors 19 facilitate the removal of the positioning plate 8 by personnel, thereby facilitating the installation and removal of the test spring 9. The observation window 20 facilitates the observation of the test process of the test spring 9 by personnel.

[0026] During operation, the test spring 9 is placed in the positioning plate 8 on the positioning groove 7. Then, the cover plate 10 is placed on the test spring 9 through the placement groove 14. The nut 17 is rotated, and the nut 17 can move downward due to the action of the thread 16. The nut 17 is rotated to the upper surface of the cover plate 10. At this time, the nut 17 can limit the cover plate 10, ensuring the stability of the subsequent test spring 9 test. After the test spring 9 is fixed, the positioning plate 8 is placed in the test chamber 4 through the positioning groove 7. The sealing door 19 is closed, and the heating plate 5 and cylinder 11 are started. The heating plate 5 can heat the inside of the test chamber 4. The heating plate 5, together with the temperature sensor 6, can control the temperature inside the test chamber 4 within the specified range. The cylinder 11 can drive the pressing plate 12 to move up and down. The pressing plate 12 can then perform fatigue testing on the test spring 9 through the cover plate 10. The setting of three test chambers 4 allows personnel to test the fatigue of the same test spring 9 at different temperatures, improving the reliability of the test results.

[0027] Through the above steps, by setting up test chamber 4, heating plate 5, temperature sensor 6, cylinder 11 and pressing plate 12, the heating plate 5 can work with the temperature sensor 6 to control the temperature inside the test chamber 4, and the cylinder 11 can drive the pressing plate 12 to perform fatigue testing on the test spring 9. The setting of three test chambers 4 can test the fatigue of the same test spring 9 at different temperatures, improving the reliability of the test results. This solves the problem that some existing fatigue testing devices for automotive parts can only apply stress to the spring in a single way when testing the fatigue of springs in automobiles, and cannot control the temperature of the spring during testing. The spring performance and fatigue will change under different temperatures.

Claims

1. A fatigue simulation testing device for automotive parts, comprising a base plate (1); characterized in that: It also includes an insulation shell (2), a heat insulation plate (3), a test chamber (4), a heating plate (5), a temperature sensor (6), a positioning plate (8), a cover plate (10), a cylinder (11), and a pressing plate (12). The top of the base plate (1) is connected to the insulation shell (2). The interior rear side of the insulation shell (2) is connected to two heat insulation plates (3). The two heat insulation plates (3) divide the interior of the insulation shell (2) into three test chambers (4). The heating plate (5) is installed on the left side of the interior of the test chamber (4). A temperature sensor (6) is installed on the right side inside the test chamber (4). A positioning groove (7) is opened at the bottom inside the test chamber (4). A positioning plate (8) is set inside the positioning groove (7). A test spring (9) is set at the upper end of the positioning plate (8). A cover plate (10) is set at the upper end of the test spring (9). Three cylinders (11) are installed on the top of the heat insulation shell (2). A pressing plate (12) is connected to the output end of the cylinder (11). The three pressing plates (12) are located at the upper ends of the three cover plates (10).

2. The fatigue simulation testing device for automotive parts according to claim 1, characterized in that: The top of the positioning plate (8) is provided with a placement groove 1 (13), and the bottom of the cover plate (10) is provided with a placement groove 2 (14). The test spring (9) is set between the placement groove 1 (13) and the placement groove 2 (14).

3. The fatigue simulation testing device for automotive parts according to claim 2, characterized in that: Limiting rods (15) are connected to the top four corners of the positioning plate (8), and the upper end of the limiting rods (15) passes through the cover plate (10) and connects to the limiting plate (18).

4. The fatigue simulation testing device for automotive parts according to claim 3, characterized in that: The upper outer end of the limiting rod (15) is provided with a thread (16), and a nut (17) is provided on the outer side of the thread (16). The nut (17) is located at the upper end of the cover plate (10).

5. The fatigue simulation testing device for automotive parts according to claim 1, characterized in that: The front of the insulation shell (2) has three sealed doors (19), and the upper part of the front of the sealed doors (19) has an observation window (20).

6. The fatigue simulation testing device for automotive parts according to claim 1, characterized in that: The bottom of the base plate (1) is connected to four support legs (21), which are located at the four corners of the bottom of the base plate (1).

7. The fatigue simulation testing device for automotive parts according to claim 1, characterized in that: A control panel (22) is installed on the right side of the heat insulation shell (2). The control panel (22) is electrically connected to the heating plate (5), the temperature sensor (6) and the cylinder (11).

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