Fatigue testing machine

Abstract

The utility model discloses a fatigue test bench, including fatigue test mechanism, the fatigue test mechanism bottom is equipped with the mounting disc and bolt, assembly unit, the assembly unit is used for to the air spring shock absorber of different size assembly fixed, protection unit, the protection unit is used for to the air spring shock absorber protection that damages because of fatigue test, avoids the part of collapse and fly to endanger the safety of operator, when to the air spring shock absorber fatigue test, assembles it through assembly unit, carries out the fatigue test to the air spring shock absorber through fatigue test mechanism, under the limitation of protection unit, can protect the air spring shock absorber part of collapse and fly because of damage, avoids the part of the operator to hurt, and the inside of protection frame is equipped with the anti -impact glass, then will not influence the operator observation air spring shock absorber test state.

Description

Technical Field

[0001] This utility model relates to the field of fatigue testing technology for air spring shock absorbers, specifically a fatigue testing bench. Background Technology

[0002] An air spring shock absorber is a shock-absorbing element that uses compressed air as an elastic medium and combines it with a mechanical structure to achieve shock absorption and buffering functions. The fatigue test bench is a special testing device designed to test the fatigue resistance and long-term reliability of air spring shock absorbers. Its core function is to simulate the repeated stress, extension, or vibration of air spring shock absorbers in actual use scenarios. Through long-term, periodic loading tests, it verifies whether structural damage or performance degradation occurs under a specified number of cycles, providing data support for the design optimization, quality control, and life assessment of air spring shock absorbers.

[0003] In existing fatigue testing of air spring dampers, the test bench is not easy to assemble quickly according to the adaptability of air spring dampers, which makes the operation of fatigue testing of air spring dampers inconvenient.

[0004] Therefore, a fatigue testing bench is needed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a fatigue testing bench for fatigue testing of air spring dampers, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fatigue testing bench, including a fatigue testing mechanism, wherein the fatigue testing mechanism is provided with a mounting plate and bolts at its bottom; An assembly unit is used to assemble and fix air spring shock absorbers of different sizes; The protective unit is used to protect the air spring shock absorber damaged by fatigue testing, and to prevent flying parts from endangering the safety of operators. When the air spring shock absorber is subjected to fatigue testing, it is assembled by the assembly unit and the fatigue test is carried out by the fatigue testing mechanism. Under the restriction of the protective unit, the air spring shock absorber parts that are damaged and fly away can be protected to prevent the parts from injuring the operators.

[0007] Preferably, the assembly unit includes an assembly table, the top surface of which has a groove, a slider is slidably connected inside the groove, a clamping block is connected to the top surface of the slider, a sliding column is connected to the bottom of the slider, a worm gear is rotatably connected inside the assembly table, a worm is meshed with the outer wall of the worm gear, a turntable is connected to the top surface of the worm gear, and an inclined groove is formed inside the turntable.

[0008] Preferably, the bottom of the clamping block is slidably connected to the top surface of the assembly table, and the clamping block is arc-shaped. Under the constraint of the four clamping blocks moving in a converging motion, the air spring shock absorber can be clamped.

[0009] Preferably, the inclined groove is inclined, and the outer wall of the sliding column is slidably connected to the inside of the inclined groove. Under the restriction of the inclined groove, when it squeezes the sliding column, the sliding column can drive the slider to slide inside the groove.

[0010] Preferably, the worm gear passes through the interior of the assembly table and extends to the exterior of the assembly table. The worm gear is rotatably connected to the assembly table, and under the constraint of worm gear rotation, it can drive the worm wheel meshing with it to rotate.

[0011] Preferably, the protective unit includes a fixing plate, a sleeve frame connected to the top surface of the fixing plate, a first magnetic frame connected to the inner wall of the sleeve frame, a second magnetic frame slidably connected inside the sleeve frame, a protective frame connected to the top surface of the second magnetic frame, and a column provided on the outer side of the sleeve frame.

[0012] Preferably, the fixing plate is connected to the end of the fatigue testing mechanism away from the assembly unit, and the ends of the columns are respectively connected to fixing plates. With the support of the fixing plates and columns, the fatigue testing mechanism can conduct fatigue tests on the air spring dampers through the assembly unit.

[0013] Preferably, the first magnetic frame and the second magnetic frame are magnetically attracted to each other, and the outer wall of the second magnetic frame is slidably connected to the inside of the sleeve frame. Under the restriction of magnetic attraction, the protective frame can be positioned inside the sleeve frame, and the protective test can be achieved by the cooperation between the protective frame and the sleeve frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. The fatigue testing bench is composed of an assembly unit. When the air spring damper is subjected to fatigue testing, it is placed on the top surface of the assembly bench. At this time, the worm gear is rotated, which drives the worm wheel to rotate. The worm wheel drives the turntable fixed on the top surface to rotate. Due to the sliding compression between the inclined groove and the sliding column inside the turntable, and the inclined groove being inclined, the inclined groove compresses the sliding column, causing the sliding column to drive the slider to slide inside the groove. The four clamping blocks move together to clamp the air spring damper. At this time, under the constraint of the fatigue testing mechanism, the air spring damper can be subjected to fatigue testing. Due to the meshing of the worm gear and the worm wheel, the clamped air spring damper can be locked under its own structural characteristics. 2. This fatigue testing bench consists of a protective unit as one component. When conducting fatigue tests on air spring shock absorbers, the air spring shock absorbers are assembled using the assembly unit and then tested by the fatigue testing mechanism. When the air spring shock absorber fails due to fatigue, to prevent the component from flying off and endangering the operator's safety, the protective frame is pulled, causing the protective frame to slide outwards along the second magnetic frame. Under the magnetic attraction between the first and second magnetic frames, the protective frame can be positioned. Under the protection and restraint of the two sets of frames and the protective frame, the component can be prevented from flying off and injuring people. The protective frame is equipped with impact-resistant glass inside, so it will not affect the operator's observation of the air spring shock absorber's test status. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the assembly unit and protection unit structure of this utility model.

[0017] Figure 3 This is a structural assembly unit diagram of the present utility model.

[0018] Figure 4 This is a cross-sectional schematic diagram of the structural assembly unit of this utility model.

[0019] Figure 5 This is a structural protection unit diagram of the present invention.

[0020] Figure 6 This is a schematic diagram of the explosion of the structural protection unit of this utility model.

[0021] In the diagram: 1. Fatigue testing mechanism; 2. Assembly unit; 3. Protective unit; 21. Assembly table; 22. Slide groove; 23. Slider; 24. Clamping block; 25. Sliding column; 26. Turntable; 27. Inclined groove; 28. Worm gear; 29. ​​Worm; 31. Fixing plate; 32. Sleeve frame; 33. First magnetic frame; 34. Second magnetic frame; 35. Protective frame; 36. Column. Detailed Implementation

[0022] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0023] Example 1 Reference Figure 1 and Figure 2 This is the first embodiment of the present utility model. This embodiment provides a fatigue testing bench for fatigue testing of air spring shock absorbers, including a fatigue testing mechanism 1, and the bottom of the fatigue testing mechanism 1 is provided with a mounting plate and bolts. Assembly unit 2 is used to assemble and fix air spring shock absorbers of different sizes; Protective unit 3 is used to protect the air spring shock absorber damaged by fatigue testing, and to prevent flying parts from endangering the safety of operators.

[0024] When using the air spring shock absorber, it is assembled through assembly unit 2 and fatigue test is conducted through fatigue test mechanism 1. Under the restriction of protection unit 3, the air spring shock absorber components that are broken and blown away due to damage can be protected to prevent the components from injuring the operators.

[0025] Example 2 Reference Figure 3 and Figure 4 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment is further optimized based on the above embodiment, as follows: Assembly unit 2 includes assembly table 21. The top surface of assembly table 21 has a slide groove 22. A slider 23 is slidably connected inside the slide groove 22. A clamping block 24 is connected to the top surface of slider 23. A sliding column 25 is connected to the bottom of slider 23. A worm gear 28 is rotatably connected inside assembly table 21. A worm 29 meshes with the outer wall of worm gear 28. A turntable 26 is connected to the top surface of worm gear 28. An inclined groove 27 is opened inside turntable 26.

[0026] The bottom of the clamping block 24 is slidably connected to the top surface of the assembly table 21. The clamping block 24 is arc-shaped and can clamp the air spring shock absorber under the constraint of the four clamping blocks 24 that move together.

[0027] The inclined groove 27 is inclined, and the outer wall of the sliding column 25 is slidably connected to the inside of the inclined groove 27. Under the restriction of the inclined groove 27, when it squeezes the sliding column 25, the sliding column 25 can drive the slider 23 to slide inside the groove 22.

[0028] The worm 29 passes through the interior of the assembly table 21 and extends to the exterior of the assembly table 21. The worm 29 is rotatably connected to the assembly table 21. Under the restriction of the rotation of the worm 29, it can drive the worm wheel 28 meshing with it to rotate.

[0029] In use, when conducting fatigue tests on the air spring shock absorber, it is placed on the top surface of the assembly table 21. At this time, the worm gear 29 is rotated, which drives the worm wheel 28 to rotate as well. The worm wheel 28 drives the turntable 26 fixedly mounted on its top surface to rotate as well. Due to the sliding compression between the inclined groove 27 and the sliding column 25 inside the turntable 26, and the inclined groove 27 being inclined, the inclined groove 27 compresses the sliding column 25, causing the sliding column 25 to drive the slider 23 to slide inside the sliding groove 22. The four clamping blocks 24 move together to clamp the air spring shock absorber. At this time, under the constraint of the fatigue test mechanism 1, the air spring shock absorber can be fatigue tested. Due to the meshing of the worm gear 29 and the worm wheel 28, the clamped air spring shock absorber can be locked under the constraint of its own structural characteristics.

[0030] Example 3 Reference Figure 5 and Figure 6 This is the third embodiment of the present invention. Unlike the previous embodiment, this embodiment is further optimized based on the above embodiments, as detailed below: The protective unit 3 includes a fixing plate 31, a sleeve frame 32 connected to the top surface of the fixing plate 31, a first magnetic frame 33 connected to the inner wall of the sleeve frame 32, a second magnetic frame 34 slidably connected inside the sleeve frame 32, a protective frame 35 connected to the top surface of the second magnetic frame 34, and a column 36 provided on the outer side of the sleeve frame 32.

[0031] The fixed plate 31 is connected to the end of the fatigue testing mechanism 1 away from the assembly unit 2, and the ends of the column 36 are respectively connected to the fixed plate 31. With the support of the fixed plate 31 and the column 36, the fatigue testing mechanism 1 can conduct fatigue tests on the air spring damper through the assembly unit 2.

[0032] The first magnetic frame 33 and the second magnetic frame 34 are magnetically attracted to each other. The outer wall of the second magnetic frame 34 is slidably connected to the inside of the sleeve frame 32. Under the restriction of magnetic attraction, the protective frame 35 can be positioned inside the sleeve frame 32. The protective test can be achieved by the cooperation between the protective frame 35 and the sleeve frame 32.

[0033] In use, when the air spring shock absorber is subjected to fatigue testing, it is assembled through assembly unit 2 and then tested by fatigue testing mechanism 1. When the air spring shock absorber is damaged due to fatigue, in order to prevent the parts from flying off and endangering the operator's safety, the protective frame 35 is pulled, causing the protective frame 35 to drive the second magnetic frame 34 to slide outward from the sleeve frame 32. Under the magnetic attraction between the first magnetic frame 33 and the second magnetic frame 34, the protective frame 35 can be positioned. Under the protection and restraint of the two sets of sleeve frames 32 and protective frame 35, the parts can be prevented from flying off and injuring people. The protective frame 35 is equipped with impact-resistant glass inside, so it will not affect the operator's observation of the air spring shock absorber test status.

[0034] The above are merely illustrative embodiments of this utility model and are not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model. Furthermore, it should be noted that the components of this utility model are not limited to the overall application described above. Each technical feature described in the specification can be used individually or in combination as needed. Therefore, this utility model naturally covers other combinations and specific applications related to the points of this utility model.

Claims

1. A fatigue testing bench, characterized in that, For fatigue testing of air spring dampers, including a fatigue testing mechanism (1), wherein the fatigue testing mechanism (1) is provided with a mounting plate and bolts at the bottom; Assembly unit (2), the assembly unit (2) is used to assemble and fix air spring shock absorbers of different sizes; The protective unit (3) is used to protect the air spring damper damaged by fatigue testing, so as to prevent the flying parts from endangering the safety of the operator.

2. The fatigue testing bench according to claim 1, characterized in that: The assembly unit (2) includes an assembly table (21), the top surface of which is provided with a sliding groove (22), a slider (23) is slidably connected inside the sliding groove (22), a clamping block (24) is connected to the top surface of the slider (23), a sliding column (25) is connected to the bottom of the slider (23), a worm gear (28) is rotatably connected inside the assembly table (21), a worm (29) is meshed on the outer wall of the worm gear (28), a turntable (26) is connected to the top surface of the worm gear (28), and an inclined groove (27) is provided inside the turntable (26).

3. The fatigue testing bench according to claim 2, characterized in that: The bottom of the clamping block (24) is slidably connected to the top surface of the assembly table (21), and the clamping block (24) is arranged in an arc shape.

4. The fatigue testing bench according to claim 2, characterized in that: The inclined groove (27) is inclined, and the outer wall of the sliding column (25) is slidably connected to the inside of the inclined groove (27).

5. A fatigue testing bench according to claim 2, characterized in that: The worm (29) passes through the interior of the assembly table (21) and extends to the exterior of the assembly table (21), and the worm (29) is rotatably connected to the assembly table (21).

6. The fatigue testing bench according to claim 1, characterized in that: The protective unit (3) includes a fixing plate (31), a sleeve frame (32) is connected to the top surface of the fixing plate (31), a first magnetic frame (33) is connected to the inner wall of the sleeve frame (32), a second magnetic frame (34) is slidably connected inside the sleeve frame (32), a protective frame (35) is connected to the top surface of the second magnetic frame (34), and a column (36) is provided on the outside of the sleeve frame (32).

7. A fatigue testing bench according to claim 6, characterized in that: The fixing plate (31) is connected to the end of the fatigue testing mechanism (1) away from the assembly unit (2), and the ends of the column (36) are respectively connected to the fixing plate (31).

8. A fatigue testing bench according to claim 6, characterized in that: The first magnetic frame (33) and the second magnetic frame (34) are magnetically attracted to each other, and the outer wall of the second magnetic frame (34) is slidably connected to the inside of the sleeve frame (32).

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