Gear impact fatigue testing device

Abstract

The invention relates to the technical field of gear testing, and discloses a gear impact fatigue testing device which comprises a supporting plate. The rotating assembly is rotationally arranged on the inner side of the supporting plate, and a testing gear is detachably arranged on the outer side of the rotating assembly; the swing assembly is arranged on the side, away from the test gear, of the rotating assembly; the first driving assembly is arranged on the side, away from the rotating assembly, of the supporting plate, the first driving assembly comprises a driving piece, the rotating speed of the first driving assembly can be changed when the first driving assembly is driven by external force, and the first driving assembly is used for driving the swing assembly to rotate upwards; and the impact assembly is arranged on the outer side of the rotating assembly, and the impact assembly comprises an impact part which is arranged on the outer side of the test gear. The gear impact fatigue testing device can effectively solve the problems that in the prior art, the impact strength during gear testing is inconvenient to adjust, and the impact strength is difficult to adjust according to the testing requirements of different gears.

Description

Technical Field

[0001] The present invention relates to the technical field of gear testing, and in particular to a gear impact fatigue testing device. Background Art

[0002] Impact fatigue occurs when gears are subjected to repeated shock loads, which create cyclical stresses in the gear material. Over time, this stress causes material fatigue and ultimately fracture. Gears need to be impact fatigue tested to ensure that they can withstand the shock loads encountered during operation without failure.

[0003] In the related technology, for example, the patent with the prior art publication number CN117848643B provides a gear impact fatigue detection device. When the device performs fatigue detection on the gear, the first drive device drives the gear to rotate, and the gear squeezes the impact part to make it shrink. At the same time, the impact part rotates around a certain angle in the first direction. As the gear continues to rotate, the gear loses the squeezing force on the impact part, and the impact part rotates around the second direction. At the same time, the impact part stretches to impact the tooth surface of the gear to detect the impact fatigue strength of the gear; when the gear tooth is broken, the broken part has no force on the impact part, so that the impact part continues to rotate around the second direction and contacts the control switch. The control switch controls the first drive device to stop rotating. During the detection process, if the gear tooth is broken, the device can stop rotating immediately, thereby reducing the error in the gear fatigue strength detection and improving the accuracy of the detection result.

[0004] Although the above-mentioned existing technical solution can realize the impact test of the gear by setting the impact part structure, and automatically trigger the device to stop running after the gear teeth are broken, when the gear contacts the impact part, the impact head will compress the spring inside the shell to slide, resulting in that the impact strength during the gear test is not convenient to adjust (especially when a larger impact force is required), and it is difficult to adjust the impact strength according to the testing requirements of different gears. Summary of the Invention

[0005] In response to the above-mentioned shortcomings of the prior art, the present invention provides a gear impact fatigue testing device, which can effectively solve the problem in the prior art that the impact strength during gear testing is not convenient to adjust and it is difficult to adjust the impact strength according to the testing requirements of different gears.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a gear impact fatigue testing device, comprising: Support plate, used to support and install various components; A rotating assembly is configured on one side of the support plate, the rotating assembly includes a rotating base rotatably arranged on one side of the support plate, and the test gear is detachably arranged on one side of the rotating base. In a working state, the rotating assembly drives the test gear to rotate within a preset range; An impact assembly is provided on one side of the rotating assembly, and the impact assembly includes an impact portion. In a working state, the impact portion is configured on one side of the test gear; Among them, a distance sensor is provided in the rotating seat, and the distance sensor is used to detect the deformation of a tooth when the test gear collides with the impact part; a display controller is installed on one side of the support plate, and the display controller is electrically connected to the distance sensor to display the deformation.

[0007] Furthermore, it also includes: A swing assembly is provided on a side of the rotating assembly away from the test gear, and the swing assembly includes a swing arm rotatably provided on one side of the rotating base; The first driving assembly is arranged on a side of the support plate away from the rotating assembly. The first driving assembly includes a driving member. In a working state, the driving member can intermittently drive the swing arm to swing, so that the rotating seat drives the test gear to rotate.

[0008] Furthermore, the rotating assembly further includes: The positioning rod is a threaded rod, which is fixedly arranged on one side of the rotating seat. The test gear is sleeved on the outer side of the positioning rod in the working state; A positioning block is slidably arranged on the outer side of the positioning rod; A positioning ring is arranged on a side of the positioning block away from the test gear, and the positioning ring is threadedly connected to the outer side of the positioning rod.

[0009] Furthermore, a flower groove is provided on the outer side of the positioning rod; A slide is provided on the inner side of the positioning block corresponding to the slide groove.

[0010] Furthermore, the driving member is driven by a speed regulating motor; A counterweight is arranged on the outer side of one end of the swing arm close to the driving member.

[0011] Furthermore, an arc block is fixedly provided on the inner side of the rotating seat, and the distance sensor is provided on one side of the arc block; A fixed ring is provided on one side of the swing arm close to the rotating assembly, an arc-shaped slide rod is provided on the inner side of the fixed ring, and the arc-shaped slide rod is slidably provided on the inner side of the arc-shaped block; A first elastic member is provided on one side of the fixing ring. The first elastic member is sleeved on the outer side of the arc-shaped sliding rod. One end of the first elastic member away from the fixing ring abuts against one side of the arc-shaped block.

[0012] Furthermore, the impact assembly further comprises a gear ring, and a sliding groove is formed on one side of the gear ring; A sliding component is slidably arranged inside the sliding groove, and the impact part is arranged on one side of the sliding component.

[0013] Furthermore, the sliding assembly includes: A sliding block is slidably arranged in the sliding groove, and a fixing bolt is provided on the outer thread of the sliding block; a rotating arm, rotatably disposed on one side of the sliding block; The slide rail is rotatably arranged on a side of the rotating arm away from the sliding block.

[0014] Furthermore, a support frame is fixedly provided on one side of the gear ring; A rotating rod is slidably provided on one side of the slide rail, a fixed shaft is fixedly provided on one side of the rotating rod, one end of the fixed shaft is rotatably provided on the support frame, and the other end of the fixed shaft is rotatably provided on the outer side of the gear ring; A mounting sleeve is rotatably provided on the outer side of the fixed shaft through a second elastic member, and the impact portion is detachably provided on the inner side of the mounting sleeve.

[0015] Furthermore, the gear ring is driven by a second drive assembly, and the second drive assembly includes a brake motor.

[0016] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention is provided with a swinging assembly, which drives the swinging assembly to swing by rotating the driving member in the first driving assembly, thereby driving the rotating assembly to drive the test gear to rotate, so that the test gear impacts the impact part, and performs an impact fatigue test on the test gear. By changing the rotation speed of the driving member, the rotation speed of the test gear is changed, and the impact strength of the test gear during the test is adjusted, which effectively solves the problem in the prior art that the impact strength during gear testing is not convenient to adjust and it is difficult to adjust the impact strength according to the testing requirements of different gears. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic structural diagram of a fixing assembly in an embodiment of the present invention; Figure 3 This is a structural diagram of a fixed frame in an embodiment of the present invention; Figure 4 This is a schematic structural diagram of the assembly of the swing assembly and the first drive assembly in an embodiment of the present invention; Figure 5 Schematic diagram of the structure of the rotating assembly in an embodiment of the present invention; Figure 6 This is a schematic structural diagram of an explosion of a rotating assembly according to an embodiment of the present invention; Figure 7 A schematic structural diagram of the rotating seat in an embodiment of the present invention; Figure 8 A schematic structural diagram of the swing assembly in an embodiment of the present invention; Figure 9 A schematic structural diagram of the impact assembly and the second drive assembly assembly according to an embodiment of the present invention; Figure 10 A schematic structural diagram of the gear ring in an embodiment of the present invention; Figure 11 A schematic structural diagram of the sliding assembly in an embodiment of the present invention; Figure 12 A schematic structural diagram of the fixed shaft and the mounting sleeve assembly in an embodiment of the present invention. The numbers in the figure represent: 100, test gear; 1. Support plate; 11. Fixed frame; 12. Housing; 121. Display controller; 13. Base; 2. Rotating assembly; 21. Rotating seat; 211. Arc block; 212. Distance sensor; 22. Positioning rod; 23. Positioning block; 24. Positioning ring; 3. Swing assembly; 31. Swing arm; 32. Roller; 33. Fixing ring; 34. Arc-shaped slide bar; 35. First elastic member; 36. Counterweight; 4. First drive assembly; 41. Driving member; 42. Speed ​​regulating motor; 43. Chain; 44. Sprocket; 5. Impact assembly; 51. Gear ring; 511. Sliding groove; 52. Support frame; 53. Sliding assembly; 531. Sliding block; 532. Fixing bolt; 533. Rotating arm; 5331. Connecting plate; 534. Slide rail; 54. Rotating rod; 541. Fixed shaft; 55. Mounting sleeve; 551. Impact part; 552. Second elastic member; 56. First gear; 6. Second drive assembly; 61. Brake motor; 62. Second gear; 7. Fixing assembly; 71. Electric push rod; 72. Clamping block; 73. Sliding column. DETAILED DESCRIPTION

[0019] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

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

[0021] See also Figures 1-12 The present invention provides a technical solution: a gear impact fatigue testing device, comprising a support plate 1, a shell 12 is fixedly provided on the outer side of the support plate 1, a display controller 121 is provided on the outer side of the shell 12, a base 13 is fixedly provided on the bottom of the shell 12, a rotating assembly 2 is rotatably provided on the inner side of the support plate 1, a test gear 100 to be tested is detachably provided on the outer side of the rotating assembly 2, in a working state, the rotating assembly 2 can drive the test gear 100 to rotate within a preset angle range; a swing assembly 3 is provided on the side of the rotating assembly 2 away from the test gear 100, and the swing assembly 3 is used to drive the rotating assembly 2 to rotate within a preset angle range; a first driving assembly 4 is provided on the side of the support plate 1 away from the rotating assembly 2, the first driving assembly 4 includes a driving member 41, the driving member 41 is a cam, the driving member 41 can change its own rotation speed when driven by external force and is used to drive the swing assembly 3 to rotate upward, an impact assembly 5 is provided on the outer side of the rotating assembly 2, the impact assembly 5 includes an impact part 551, and the impact part 551 is provided on the outer side of the test gear 100.

[0022] In the working state, the driving member 41 in the first driving component 4 drives the swinging component 3 to rotate, and the swinging component 3 drives the rotating component 2 and the test gear 100 connected to one side of the driving component 2 to rotate within a preset angle range, so that one of the teeth of the test gear 100 hits one side of the impact part 551, which is used to simulate the impact condition of the gear.

[0023] There are several rotating components 2, each of which includes a rotating seat 21. A positioning rod 22 is fixedly provided on the outside of the rotating seat 21, and a test gear 100 is sleeved on the outside of the positioning rod 22. A positioning block 23 is slidably provided on the outside of the testing gear 100 on the outside of the positioning rod 22, and a positioning ring 24 is threadedly provided on the outside of the positioning block 23 on the outside of the positioning rod 22.

[0024] During the assembly process, the test gear 100 is installed on the outside of the positioning rod 22, and then the positioning block 23 is used to abut against one side of the test gear 100, and then the positioning block 23 is tightened against one side of the test gear 100 through the positioning ring 24 to fix the test gear 100.

[0025] In order to ensure the stability of the test gear during the impact test, a flower groove is opened on the outside of the positioning rod 22, and a slide is set on the inner side of the positioning block 23 corresponding to the flower groove. In the assembled state, the slide is slidably set on the outside of the flower groove.

[0026] There are several swing assemblies 3 corresponding to the rotating assemblies 2. Each swing assembly 3 includes a swing arm 31. A roller 32 is rotatably provided at one end of the swing arm 31. A counterweight 36 is fixedly provided on the outer side of the swing assembly 3. There are several driving members 41 corresponding to the swing assembly 3. Every two adjacent driving members 41 are linked by a chain 43 and a sprocket 44. One of the driving members 41 is fixed to the output end of the speed regulating motor 42. A fixing frame 11 is fixedly provided on the outer side of the support plate 1 , and the speed regulating motor 42 is fixedly provided on the outer side of the fixing frame 11 via a connecting plate.

[0027] The speed regulating motor 42 drives one of the driving members 41 to rotate, and the driving member 41 drives the other driving members 41 to rotate through the chain 43 and the sprocket 44, so as to drive multiple swing assemblies 3 to swing at the same time, so that the impact fatigue of multiple test gears can be tested at the same time.

[0028] An arc block 211 is fixedly provided on the inner side of the rotating seat 21, and a distance sensor 212 is provided on the outer side of the arc block 211; A fixing ring 33 is fixedly provided on one side of the swing arm 31 close to the rotating component 2, and an arc-shaped slide rod 34 is fixedly provided on the inner side of the fixing ring 33. The arc-shaped slide rod 34 is slidably provided on the inner side of the arc block 211. A first elastic member 35 is fixedly provided on one side of the fixing ring 33, and the first elastic member 35 is sleeved on the outer side of the arc-shaped slide rod 34.

[0029] During the test, the swing arm 31 is driven to swing by the first driving component 4. During the swinging of the swing arm 31, the rotating seat 21 is first driven to rotate by the first elastic member 35 and the arc block 211, so that the test gear 100 rotates and hits one side of the impact part 551. Then the impact part 551 prevents the test gear 100 from rotating further, and the swing arm 31 continues to rotate under the drive of the first driving component 4, so that the arc slide 34 compresses the first elastic member 35 and continues to move toward the inside of the arc block 211. The deformation of a tooth in the test gear 100 that hits the impact part 551 can be indirectly reflected by detecting the distance between it and the end of the arc slide 34 by the distance sensor 212.

[0030] There are several impact assemblies 5 corresponding to the rotating assemblies 2, and each impact assembly 5 also includes a gear ring 51, a support frame 52 is fixedly set on the outer side of the gear ring 51, a sliding groove 511 is opened on the outer side of the gear ring 51, and a sliding assembly 53 is slidably set on the inner side of the sliding groove 511.

[0031] The sliding assembly 53 includes a sliding block 531, which is slidably arranged in the sliding groove 511. A fixing bolt 532 is threadedly arranged on the outer side of the sliding block 531. A rotating arm 533 is rotatably arranged on the outer side of the sliding block 531. A sliding rail 534 is rotatably arranged on one end of the rotating arm 533. A rotating rod 54 is slidably arranged on the inner side of the sliding rail 534. A fixed shaft 541 is fixedly arranged on the outer side of the rotating rod 54. A mounting sleeve 55 is rotatably arranged on the outer side of the fixed shaft 541 via a second elastic member 552. A striking portion 551 is detachably arranged on the inner side of the mounting sleeve 55. A support frame 52 is fixedly installed on the top of the gear ring 51. The fixed shaft 541 is rotatably installed on the inner side of the support frame 52 at a side away from the gear ring 51. The fixed shaft 541 is rotatably installed on the outer side of the gear ring 51 at one end away from the rotating rod 54.

[0032] The outer sides of two adjacent gear rings 51 are meshed with each other and are provided with first gears 56, one of which is driven to rotate by the second drive assembly 6, and the second drive assembly 6 includes a brake motor 61, which is fixedly provided on the outer side of the support plate 1, and a second gear 62 is fixedly provided on the output end of the brake motor 61, and the outer side of the second gear 62 is meshed with the outer side of the corresponding first gear 56.

[0033] The ends of the plurality of rotating arms 533 away from the slide rail 534 are all rotatably arranged on the inner side of the connecting plate 5331 , and the connecting plate 5331 is fixed by the fixing components 7 at the top and bottom.

[0034] The fixing assembly 7 includes an electric push rod 71, which is fixedly arranged on the outside of the fixed frame 11. A clamping block 72 is fixedly arranged on the output end of the electric push rod 71. A pressure sensor is provided on the side of the clamping block 72 close to the connecting plate 5331. A sliding column 73 is fixedly arranged on the side of the clamping block 72 away from the pressure sensor. The sliding column 73 is slidably arranged on the inner side of the fixed frame 11.

[0035] Principle and advantages of gear impact fatigue testing device: First, when installing the test gear 100, install the test gear 100 to the outside of the positioning rod 22, then put the positioning block 23 onto the outside of the positioning rod 22 through the flower groove and the flower hole, so that the tapered end of the positioning block 23 positions the test gear 100, and by putting the positioning ring 24 to the outermost side and making the positioning ring 24 threadedly engage with the positioning rod 22, the positioning ring 24 fixes the positioning block 23 and the test gear 100, completing the installation of the test gear 100; Then, the brake motor 61 drives the second gear 62 to rotate, driving the corresponding first gear 56 to rotate, so that the first gear 56 drives the gear ring 51 to rotate. The two adjacent gear rings 51 are driven by the first gear 56, so that the multiple gear rings 51 can rotate together, driving the corresponding impact part 551 to rotate around the corresponding test gear 100, and adjusting the orientation of the impact part 551; The sliding block 531 slides inside the sliding groove 511, so that the sliding block 531 drives the rotating arm 533 to rotate, and the rotating arm 533 drives the slide rail 534 to move and rotate. Under the torsional force of the second elastic member 552, the mounting sleeve 55 always drives one end of the rotating rod 54 to be close to the inner side of the slide rail 534, thereby achieving the angle adjustment of the impact part 551. The multiple rotating arms 533 are connected by a connecting plate 5331. When one of the rotating arms 533 rotates, it drives the multiple rotating arms 533 to rotate together, thereby achieving the effect of adjusting the angle of the impact parts 551 of multiple groups of impact assemblies 5 together. After the orientation and angle of the impact part 551 are adjusted, the electric push rods 71 ​​at the top and bottom drive the clamping block 72 to move, so that the clamping block 72 clamps the connecting plate 5331. The pressure sensor detects whether the clamping is tight. During the test, the speed regulating motor 42 drives the driving member 41 to rotate, and the adjacent driving members 41 are linked through the chain 43 and the sprocket 44, and the driving member 41 pushes the roller 32 to rotate the swing arm 31, thereby driving the fixed ring 33 to rotate, so that the arc slide bar 34 and the first elastic member 35 drive the rotating seat 21 to rotate, so that the rotating seat 21 drives the test gear 100 to rotate, so that the gear teeth of the test gear 100 hit the impact part 551, and the gear teeth of the test gear 100 are impacted. The speed of the test gear 100 is adjusted by adjusting the speed of the speed regulating motor 42, thereby adjusting the impact force of the test gear 100 and the impact part 551. After the test gear 100 collides with the impact part 551, the impact part 551 prevents the test gear 100 from further rotation, so that the test gear 100 00 cannot continue to rotate, at this time the swing arm 31 continues to rotate, the first elastic member 35 is compressed between the arc block 211 and the fixed ring 33, and the arc slide rod 34 moves inside the arc block 211. At this time, the distance from its detection end to the end of the arc slide rod 34 is detected by the distance sensor 212. When the gear teeth of the test gear 100 are damaged, the arc slide rod 34 and the first elastic member 35 drive the rotating seat 21 to rotate at an increased angle, so that the sliding distance of the arc slide rod 34 inside the arc block 211 is reduced, and the distance detected by the distance sensor 212 is reduced, wherein the distance sensor 212 is set to deviate from the center of the inner hole of the arc block 211. The distance sensor 212 can detect the distance between its detection end and the arc slide rod 34, and the display controller 121 can display the test results and control the test process; After the collision is completed, the driving member 41 continues to rotate under the drive of the speed regulating motor 42, so that the driving member 41 passes over the swing arm 31. At this time, the swing arm 31 loses the support of the driving member 41 and is reset under the action of the counterweight block 36, which is convenient for the next collision and detection.

[0036] Its advantages are that by adjusting the speed of the speed-regulating motor 42, the rotation speed of the driving member 41 is adjusted, the swing speed of the swing component 3 is adjusted, and the rotation speed of the test gear 100 is adjusted. By adjusting the speed of the test gear 100, the impact strength between the test gear 100 and the impact part 551 is adjusted, which effectively solves the problem in the prior art that the impact strength during gear testing is not convenient to adjust and it is difficult to adjust the impact strength according to the testing requirements of different gears.

[0037] In the gear impact fatigue testing device of the present application, the test gear 100 is installed by the positioning block 23 and the positioning ring 24; Its advantages are that the test gear 100 is positioned by the positioning block 23, so that the test gear 100 can be set concentrically with the positioning rod 22, which is convenient for subsequent impact testing; the positioning block 23 and the test gear 100 are fixed by the threaded cooperation of the positioning ring 24 and the positioning rod 22, which is convenient for the disassembly and assembly of the test gear 100.

[0038] It is worth noting that the above-mentioned method of adjusting the orientation and angle of the impact part 551 has the following advantages: Advantage 1: The brake motor 61 drives the second gear 62 to rotate, so that the second gear 62 drives the gear ring 51 to rotate, which can drive the impact part 551 to rotate around the corresponding test gear 100 and adjust the orientation of the impact part 551 to facilitate impact fatigue testing of all teeth of the test gear 100.

[0039] Advantage two: by setting the first gear 56 for meshing between adjacent gear rings 51, one of the first gears 56 is driven by the second gear 62 to rotate, so that multiple gear rings 51 can rotate at the same time, thereby causing the impact part 551 to rotate with the corresponding test gear 100 as the center, making it easy to adjust the orientation of multiple impact parts 551 at the same time.

[0040] Advantage three: by sliding the sliding block 531 on the inside of the sliding groove 511, the sliding block 531 drives the rotating arm 533 to rotate, so that the rotating arm 533 drives the sliding rail 534 to move and rotate. Under the torsion of the second elastic member 552, the mounting sleeve 55 always drives one end of the rotating rod 54 to be close to the inner side of the sliding rail 534, thereby realizing the adjustment of the angle of the impact part 551, so that the sliding groove 511 is suitable for test gears 100 of different specifications.

[0041] Advantage four: multiple rotating arms 533 are connected by a connecting plate 5331. When one of the rotating arms 533 rotates, multiple rotating arms 533 are driven to rotate together, thereby achieving the effect of adjusting the angles of the impact parts 551 in multiple groups of impact assemblies 5 together.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. Gear impact fatigue testing device, characterized in that, include: Support plate, used to support and install various components; A rotating assembly is configured on one side of the support plate, the rotating assembly includes a rotating base rotatably arranged on one side of the support plate, and the test gear is detachably arranged on one side of the rotating base. In a working state, the rotating assembly drives the test gear to rotate within a preset range; An impact assembly is provided on one side of the rotating assembly, and the impact assembly includes an impact portion. In a working state, the impact portion is configured on one side of the test gear; Among them, a distance sensor is provided in the rotating seat, and the distance sensor is used to detect the deformation of a tooth when the test gear collides with the impact part; a display controller is installed on one side of the support plate, and the display controller is electrically connected to the distance sensor to display the deformation.

2. The gear impact fatigue testing device according to claim 1, characterized in that: Also includes: A swing assembly is provided on a side of the rotating assembly away from the test gear, and the swing assembly includes a swing arm rotatably provided on one side of the rotating base; The first driving assembly is arranged on a side of the support plate away from the rotating assembly. The first driving assembly includes a driving member. In a working state, the driving member can intermittently drive the swing arm to swing, so that the rotating seat drives the test gear to rotate.

3. The gear impact fatigue testing device according to claim 1, characterized in that: The rotating assembly further includes: The positioning rod is a threaded rod, which is fixedly arranged on one side of the rotating seat. The test gear is sleeved on the outer side of the positioning rod in the working state; A positioning block is slidably arranged on the outer side of the positioning rod; A positioning ring is arranged on a side of the positioning block away from the test gear, and the positioning ring is threadedly connected to the outer side of the positioning rod.

4. The gear impact fatigue testing device according to claim 3, characterized in that: A flower groove is provided on the outer side of the positioning rod; A slide is provided on the inner side of the positioning block corresponding to the slide groove.

5. The gear impact fatigue testing device according to claim 2, characterized in that: The driving member is driven by the speed regulating motor; A counterweight is arranged on the outer side of one end of the swing arm close to the driving member.

6. The gear impact fatigue testing device according to claim 2, characterized in that: An arc block is fixedly provided on the inner side of the rotating seat, and the distance sensor is provided on one side of the arc block; A fixed ring is provided on one side of the swing arm close to the rotating assembly, an arc-shaped slide rod is provided on the inner side of the fixed ring, and the arc-shaped slide rod is slidably provided on the inner side of the arc-shaped block; A first elastic member is provided on one side of the fixing ring. The first elastic member is sleeved on the outer side of the arc-shaped sliding rod. One end of the first elastic member away from the fixing ring abuts against one side of the arc-shaped block.

7. The gear impact fatigue testing device according to claim 1, characterized in that: The impact assembly further includes a gear ring, and a sliding groove is formed on one side of the gear ring; A sliding component is slidably arranged inside the sliding groove, and the impact part is arranged on one side of the sliding component.

8. The gear impact fatigue testing device according to claim 7, characterized in that: The sliding assembly comprises: A sliding block is slidably arranged in the sliding groove, and a fixing bolt is provided on the outer thread of the sliding block; a rotating arm, rotatably disposed on one side of the sliding block; The slide rail is rotatably arranged on a side of the rotating arm away from the sliding block.

9. The gear impact fatigue testing device according to claim 8, characterized in that: A support frame is fixedly provided on one side of the gear ring; A rotating rod is slidably provided on one side of the slide rail, a fixed shaft is fixedly provided on one side of the rotating rod, one end of the fixed shaft is rotatably provided on the support frame, and the other end of the fixed shaft is rotatably provided on the outer side of the gear ring; A mounting sleeve is rotatably provided on the outer side of the fixed shaft through a second elastic member, and the impact portion is detachably provided on the inner side of the mounting sleeve.

10. The gear impact fatigue testing device according to claim 7, characterized in that: The gear ring is driven by a second drive assembly, which includes a brake motor.

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