Differential torsional fatigue test structure
By designing a differential torsional fatigue testing structure including a test operating platform, a motor fixing frame, a test motor, a flange and a fixed assembly, the problem of loose fixing structure affecting the test results in the prior art is solved, and a more stable and accurate differential fatigue testing is achieved.
Patent Information
- Application Number
- CN202421581886.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-05
AI Technical Summary
In the existing differential torsion fatigue test, the fixed structure may cause looseness after long-term use, affecting the test results.
A differential torsion fatigue testing structure is designed, including a test operating platform, motor fixing frame, test motor, flange and fixing components. Through the configuration of these components, the differential body remains stable during the test and reduces the possibility of loosening.
Through this test structure, the fixed stability and structural strength of the differential are improved, and the loosening problems caused by long-term use are reduced, thereby improving the accuracy of the test results.
Smart Images
Figure CN222913128U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of differential testing, in particular to a test structure for torsional fatigue of a differential. Background Technique
[0002] Differential torsional fatigue testing is an important method for evaluating the performance of a differential. The differential is a key component in an automotive drive system. Its main function is to allow the two wheels to rotate at different speeds when the vehicle turns, thereby improving the vehicle's handling and stability.
[0003] When conducting differential torsional fatigue testing, it is necessary to simulate various torques and stresses that the differential bears during actual vehicle use. During the test, various parameters of the differential, such as temperature, stress, strain, etc., need to be monitored to evaluate the performance and durability of the differential. It is also necessary to perform repeated torsional cyclic loading on the differential to simulate the long-term use process, so as to evaluate its fatigue life and reliability. In the existing differential torsional fatigue testing, the fixing structure may become loose due to long-term use when fixing the differential, thus affecting the test results and other situations. Content of the Utility Model
[0004] Therefore, the technical problem to be solved by the utility model is to overcome the situation that the fixing structure may become loose due to long-term use when fixing the differential in the prior art, thus affecting the test results and other situations.
[0005] To solve the above technical problem, the utility model provides a test structure for torsional fatigue of a differential, including a test operation platform; a motor fixing frame is fixedly connected to the top of the test operation platform; a pair of motor fixing frames are arranged on the top of the test operation platform and are symmetrically arranged; a test motor is fixedly connected to the middle of the pair of motor fixing frames; a first flange is fixedly connected to the transmission end of the test motor; a second flange is provided on the side of the first flange away from the test motor; the second flange is connected to the first flange by bolts; a differential body is fixedly connected to the side of the second flange away from the first flange; a fixing component is provided at the end of the differential body; the fixing component is arranged at the bottom of the test operation platform; a fixing shaft is fixedly connected to the end of the differential body away from the test motor; the fixing shaft is fixedly connected to the fixing component; one end of the differential body away from the fixing shaft is rotatably connected to the fixing component; in this step, through the settings of the test operation platform, the motor fixing frame, the test motor, the first flange, the second flange, the differential body, and the fixing shaft, the test motor rotates to drive the differential body to rotate for fatigue testing. The fatigue test structure is simple. By adjusting the speed of the test motor, different torsional strength situations received by the differential body can be simulated, and various test modes can be increased.
[0006] In an embodiment of the present utility model, the fixing assembly includes a first I-shaped steel frame, a second I-shaped steel frame, a first fixing frame, a first fixing upper tile, a second fixing frame, a second fixing upper tile, and a fixing pin; the first I-shaped steel frame is fixedly connected to the top of the test operation platform close to the second flange; the top of the first I-shaped steel frame is fixedly connected to the bottom of the first fixing frame; the first fixing frame and the first fixing upper tile are rotatably connected to the end of the differential body away from the fixed shaft; a chute is provided at the top of the test operation platform close to the fixed shaft; the second I-shaped steel frame slides in the chute; the top of the second I-shaped steel frame is fixedly connected to the bottom of the second fixing frame; the second fixing frame is fixedly connected to the second fixing upper tile and the fixed shaft; the fixing pin is arranged between the second fixing upper tile and the fixed shaft; multiple groups of fixing pins are arranged between the second fixing upper tile and the fixed shaft and are symmetrically arranged; in this step, through the settings of the first I-shaped steel frame, the second I-shaped steel frame, the first fixing frame, the first fixing upper tile, the second fixing frame, the second fixing upper tile, and the fixing pin, one end of the differential body away from the fixed shaft is rotatably connected between the first fixing frame and the first fixing upper tile, and the fixed shaft is fixed between the second fixing upper tile and the second fixing frame, improving the stability of the fixing assembly for fixing the differential body, increasing the structural strength of the fixing assembly, and reducing the situation that loosening occurs due to long-term use and affects the test results.
[0007] In an embodiment of the present utility model, a fixing seat is fixedly connected to the top of the test operation platform close to the first I-shaped steel frame; an oil box is fixedly connected to the top of the fixing seat; a bracket is fixedly connected inside the oil box; a runner is rotatably connected to the middle of the bracket; a rope loop is sleeved between the outer side wall of the runner and the end of the differential body away from the fixed shaft; in this step, through the settings of the rope loop, the runner, the bracket, and the oil box, lubrication is carried out between the first fixing upper tile and the first fixing frame, reducing the situation of abnormal wear of the first fixing frame and the first fixing upper tile due to lack of lubrication, and improving the service life of the components.
[0008] In an embodiment of the present utility model, a column is fixedly connected to the top of the test operation platform away from the fixing seat; a support arm is hinged to the top of the column; a funnel is fixedly connected to the top of the support arm away from the column; a dropper is arranged at the bottom of the funnel; in this step, through the settings of the column, the support arm, the funnel, and the dropper, lubricating oil is added into the differential body to lubricate the differential body, reducing the situation of abnormal wear inside the differential body due to lack of lubrication, and improving the accuracy of the measurement data.
[0009] In an embodiment of the present utility model, dampers are fixedly connected to the bottom of the test operation platform; multiple groups of dampers are arranged at the bottom of the test operation platform and are evenly distributed at the four corners of the bottom of the test operation platform; in this step, through the settings of the dampers, the vibration transmitted from the outside is weakened, reducing the influence of vibration on the test data.
[0010] In an embodiment of the present utility model, a universal wheel is fixedly connected to the bottom of the damper; the universal wheels are provided at the bottoms of multiple dampers; in this step, through the setting of the universal wheels, the convenience of moving the test operation platform is improved.
[0011] In an embodiment of the present utility model, a protective plate is fixedly connected to the top of the test operation platform close to the motor fixing frame and the column; the protective plate is made of metal material; in this step, through the setting of the protective plate, it plays a protective role during work and reduces the situation that rotating parts fly out and damage other equipment.
[0012] In an embodiment of the present utility model, a limit block is fixedly connected to the inside of the chute far from the second I-shaped steel frame; in this step, through the setting of the limit block, the second I-shaped steel frame is restricted within the chute, reducing the situation that the second I-shaped steel frame disengages from the chute.
[0013] The above technical solution of the present utility model has the following advantages compared with the prior art:
[0014] In the present utility model, through the setting of the test operation platform, the motor fixing frame, the test motor, the first flange, the second flange, the differential body, and the fixed shaft, the test motor rotates to drive the differential body to rotate for fatigue testing. The fatigue testing structure is simple. By adjusting the rotation speed of the test motor, different torsional strength situations of the differential body are simulated, increasing various test modes.
[0015] In the present utility model, through the setting of the first I-shaped steel frame, the second I-shaped steel frame, the first fixing frame, the first fixing upper tile, the second fixing frame, the second fixing upper tile, and the fixing pin, one end of the differential body far from the fixed shaft is rotatably connected between the first fixing frame and the first fixing upper tile, and the fixed shaft is fixed between the second fixing upper tile and the second fixing frame, improving the stability of the fixing component for fixing the differential body, increasing the structural strength of the fixing component, and reducing the situation that loosening occurs due to long-term use and affects the test results. Description of the Drawings
[0016] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to the specific embodiments of the present utility model and in conjunction with the drawings.
[0017] Figure 1 is a perspective view of the present utility model
[0018] Figure 2 is a schematic structural diagram of the cooperation between the differential and the I-shaped steel frame of the present utility model
[0019] Figure 3 is a schematic structural diagram of the cooperation between the rope loop and the oil box of the present utility model
[0020] Figure 4 It is a schematic structural diagram of the cooperation between the dropper of the present utility model and the differential
[0021] Explanation of the reference numerals in the accompanying drawings of the specification: 1. Test operation platform; 11. Motor fixing bracket; 12. Test motor; 13. First flange; 14. Second flange; 15. Differential body; 16. Fixed shaft; 2. First I-shaped steel frame; 21. Second I-shaped steel frame; 22. First fixing bracket; 23. First fixed upper tile; 24. Second fixing bracket; 25. Second fixed upper tile; 26. Fixed pin; 27. Slide groove; 3. Fixed seat; 31. Oil box; 32. Bracket; 33. Runner; 34. Rope loop; 4. Column; 41. Support arm; 42. Hopper; 43. Dropper; 5. Damper; 6. Universal wheel; 7. Protective plate; 8. Limit block. Specific embodiments
[0022] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the embodiments cited are not intended to limit the present utility model.
[0023] Refer to Figure 1 and Figure 2As shown in the figure, a test structure for torsional fatigue of a differential of the present utility model includes a test operation platform 1; a motor fixing frame 11 is fixedly connected to the top of the test operation platform 1; a pair of the motor fixing frames 11 are arranged on the top of the test operation platform 1 and are symmetrically arranged; a test motor 12 is fixedly connected to the middle of the pair of motor fixing frames 11; a first flange 13 is fixedly connected to the transmission end of the test motor 12; a second flange 14 is provided on the side of the first flange 13 away from the test motor 12; the second flange 14 is bolted to the first flange 13; a differential body 15 is fixedly connected to the side of the second flange 14 away from the first flange 13; a fixing component is provided at the end of the differential body 15; the fixing component is arranged at the bottom of the test operation platform 1; a fixing shaft 16 is fixedly connected to the end of the differential body 15 away from the test motor 12; the fixing shaft 16 is fixedly connected to the fixing component; one end of the differential body 15 away from the fixing shaft 16 is rotatably connected to the fixing component; during operation, the test motor 12 is turned on, the test motor 12 rotates, driving the first flange 13 and the second flange 14 to rotate, and the second flange 14 drives the differential body 15 to rotate. The fixing shaft 16 is fixed to the fixing component to perform a fatigue test on the differential body 15. The test motor 12 is a variable-speed motor; in this step, through the settings of the test operation platform 1, the motor fixing frame 11, the test motor 12, the first flange 13, the second flange 14, the differential body 15, and the fixing shaft 16, the test motor 12 rotates to drive the differential body 15 to rotate for a fatigue test. The fatigue test structure is simple. By adjusting the rotation speed of the test motor 12, different torsional strength conditions received by the differential body 15 are simulated, and various test modes are increased.
[0024] Refer to Figure 1 and Figure 2As shown, the fixing component includes a first I-shaped steel frame 2, a second I-shaped steel frame 21, a first fixing frame 22, a first fixing upper tile 23, a second fixing frame 24, a second fixing upper tile 25, and a fixing pin 26; the first I-shaped steel frame 2 is fixedly connected to the top of the test operation platform 1 near the second flange 14; the top of the first I-shaped steel frame 2 is fixedly connected to the bottom of the first fixing frame 22; the first fixing frame 22 and the first fixing upper tile 23 are rotatably connected to the end of the differential body 15 away from the fixed shaft 16; a chute 27 is opened at the top of the test operation platform 1 near the fixed shaft 16; the second I-shaped steel frame 21 slides in the chute 27; the top of the second I-shaped steel frame 21 is fixedly connected to the bottom of the second fixing frame 24; the second fixing frame 24 is fixedly connected to the second fixing upper tile 25 and the fixed shaft 16; the fixing pin 26 is arranged between the second fixing upper tile 25 and the fixed shaft 16; multiple groups of the fixing pins 26 are arranged between the second fixing upper tile 25 and the fixed shaft 16 and are symmetrically arranged; during operation, one end of the differential body 15 away from the fixed shaft 16 rotates between the first fixing frame 22 and the first fixing upper tile 23, the fixed shaft 16 is fixed by the fixing pin 26, the second I-shaped steel frame 21 slides in the chute 27 to adjust the distance between the first I-shaped steel frame 2 and the second I-shaped steel frame 21 to adapt to different lengths of the differential body 15, the first fixing upper tile 23 and the first fixing frame 22 are fixed by bolts, the second fixing upper tile 25 and the second fixing frame 24 are fixed by bolts, and the first I-shaped steel frame 2 and the second I-shaped steel frame 21 are I-shaped to improve the strength of the fixing component; in this step, through the arrangement of the first I-shaped steel frame 2, the second I-shaped steel frame 21, the first fixing frame 22, the first fixing upper tile 23, the second fixing frame 24, the second fixing upper tile 25, and the fixing pin 26, one end of the differential body 15 away from the fixed shaft 16 is rotatably connected between the first fixing frame 22 and the first fixing upper tile 23, and the fixed shaft 16 is fixed between the second fixing upper tile 25 and the second fixing frame 24, which improves the stability of the fixing component for fixing the differential body 15, increases the structural strength of the fixing component, and reduces the situation of loosening due to long-term use, thus affecting the test results.
[0025] Refer to Figure 1 and Figure 3As shown, a fixing base 3 is fixedly connected to the top of the test operation platform 1 close to the first I-shaped steel frame 2; an oil box 31 is fixedly connected to the top of the fixing base 3; a support 32 is fixedly connected inside the oil box 31; a runner 33 is rotatably connected to the middle of the support 32; a rope loop 34 is sleeved between the outer side wall of the runner 33 and the end of the differential body 15 away from the fixed shaft 16; during operation, when the second flange 14 drives the differential body 15 to rotate, the rope loop 34 is driven to rotate. Lubricating oil is placed in the oil box 31, and the rope loop 34 adheres to the lubricating oil to lubricate between the first fixed upper tile 23 and the first fixing frame 22; in this step, through the settings of the rope loop 34, the runner 33, the support 32, and the oil box 31, lubrication is carried out between the first fixed upper tile 23 and the first fixing frame 22, reducing the abnormal wear of the first fixing frame 22 and the first fixed upper tile 23 caused by lack of lubrication, and improving the service life of the components.
[0026] Refer to Figure 1 and Figure 4 As shown, a column 4 is fixedly connected to the top of the test operation platform 1 away from the fixing base 3; a support arm 41 is hinged to the top of the column 4; a funnel 42 is fixedly connected to the top of the support arm 41 away from the column 4; a dropper 43 is arranged at the bottom of the funnel 42; during operation, the support arm 41 is rotated to make the dropper 43 above the differential body 15, and lubricating oil is added into the funnel 42, and the lubricating oil enters the differential body 15 through the dropper 43 for lubrication; in this step, through the settings of the column 4, the support arm 41, the funnel 42, and the dropper 43, the lubricating oil is added into the differential body 15 to lubricate the differential body 15, reducing the abnormal wear inside the differential body 15 caused by lack of lubrication, and improving the accuracy of the measurement data.
[0027] Refer to Figure 1 As shown, dampers 5 are fixedly connected to the bottom of the test operation platform 1; multiple groups of dampers 5 are arranged at the bottom of the test operation platform 1 and are evenly distributed at the four corners of the bottom of the test operation platform 1; during operation, the dampers 5 weaken the vibration transmitted from the outside and reduce the influence of vibration on the test; in this step, through the settings of the dampers 5, the vibration transmitted from the outside is weakened, and the influence of vibration on the test data is reduced.
[0028] Refer to Figure 1 As shown, universal wheels 6 are fixedly connected to the bottom of the dampers 5; the universal wheels 6 are arranged at the bottom of multiple groups of dampers 5; during operation, when it is necessary to move the test operation platform 1, it is moved through the universal wheels 6; in this step, through the settings of the universal wheels 6, the convenience of moving the test operation platform 1 is improved.
[0029] Refer to Figure 1As shown, a protective plate 7 is fixedly connected to the top of the test operation platform 1 near the motor fixing bracket 11 and the column 4; the protective plate 7 is made of metal material; during operation, the protective plate 7 is fixed to the top of the test operation platform 1 and plays a protective role during work; in this step, through the setting of the protective plate 7, it plays a protective role during work and reduces the situation where rotating parts fly out and damage other equipment.
[0030] Refer to Figure 1 As shown, a limiting block 8 is fixedly connected to the inside of the chute 27 away from the second I-shaped steel frame 21; during operation, the limiting block 8 blocks one end of the chute 27 and reduces the situation where the second I-shaped steel frame 21 disengages from the chute 27; in this step, through the setting of the limiting block 8, the second I-shaped steel frame 21 is restricted within the chute 27 and reduces the situation where the second I-shaped steel frame 21 disengages from the chute 27.
[0031] During operation, turn on the test motor 12. The test motor 12 rotates, driving the first flange 13 and the second flange 14 to rotate. The second flange 14 drives the differential body 15 to rotate. The fixed shaft 16 is fixed to the fixing component to conduct a fatigue test on the differential body 15. The test motor 12 is a variable-speed motor; one end of the differential body 15 away from the fixed shaft 16 rotates between the first fixing bracket 22 and the first upper fixing tile 23. The fixed shaft 16 is fixed by a fixing pin 26. The second I-shaped steel frame 21 slides within the chute 27 to adjust the distance between the first I-shaped steel frame 2 and the second I-shaped steel frame 21 to adapt to different lengths of the differential body 15. The first upper fixing tile 23 and the first fixing bracket 22 are fixed by bolts, and the second upper fixing tile 25 and the second fixing bracket 24 are fixed by bolts. The first I-shaped steel frame 2 and the second I-shaped steel frame 21 are in an I-shape to improve the strength of the fixing component; when the second flange 14 drives the differential body 15 to rotate, it drives the rope loop 34 to rotate. Lubricating oil is placed in the oil box 31, and the rope loop 34 adheres to the lubricating oil to lubricate between the first upper fixing tile 23 and the first fixing bracket 22; rotate the rotating arm 41 to make the dropper 43 above the differential body 15, and add lubricating oil into the funnel 42. The lubricating oil enters the differential body 15 through the dropper 43 for lubrication; the damper 5 weakens the vibration transmitted from the outside and reduces the impact of vibration on the test; when it is necessary to move the test operation platform 1, it is moved through the universal wheels 6; the protective plate 7 is fixed to the top of the test operation platform 1 and plays a protective role during work; the limiting block 8 blocks one end of the chute 27 and reduces the situation where the second I-shaped steel frame 21 disengages from the chute 27.
[0032] Obviously, the above embodiments are merely examples for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of this utility model.
Claims
1. A differential torsional fatigue test structure, comprising a test operation platform (1); characterized in that: A motor fixing frame (11) is fixedly connected to the top of the test operation platform (1); a pair of the motor fixing frames (11) are arranged on the top of the test operation platform (1) and are symmetrically arranged; a test motor (12) is fixedly connected to the middle of the pair of motor fixing frames (11); a first flange (13) is fixedly connected to the driving end of the test motor (12); a second flange (14) is arranged on the side of the first flange (13) away from the test motor (12); the second flange (14) is connected to the first flange (13) by bolts; a differential body (15) is fixedly connected to the side of the second flange (14) away from the first flange (13); a fixing assembly is arranged at the bottom of the test operation platform (1); a fixing shaft (16) is fixedly connected to the end of the differential body (15) away from the test motor (12); the fixing shaft (16) is fixedly connected to the fixing assembly; one end of the differential body (15) away from the fixing shaft (16) is rotatably connected to the fixing assembly.
2. A differential torsional fatigue test structure according to claim 1, characterized in that: The fixing assembly comprises a first I-beam frame (2), a second I-beam frame (21), a first fixing frame (22), a first fixing upper bearing (23), a second fixing frame (24), a second fixing upper bearing (25), and a fixing pin (26); the first I-beam frame (2) is fixedly connected to the top of the test operation platform (1) near the second flange (14); the top of the first I-beam frame (2) is fixedly connected to the bottom of the first fixing frame (22); the first fixing frame (22) and the first fixing upper bearing (23) are rotatably connected to the end of the differential body (15) away from the fixing shaft (16); The test operation platform (1) is provided with a slide groove (27) at the top near the fixed shaft (16); the second I-beam frame (21) slides in the slide groove (27); the top of the second I-beam frame (21) is fixedly connected to the bottom of the second fixed frame (24); the second fixed frame (24) is fixedly connected to the second fixed upper bearing (25) and the fixed shaft (16); the fixing pin (26) is arranged between the second fixed upper bearing (25) and the fixed shaft (16); a plurality of groups of the fixing pins (26) are arranged between the second fixed upper bearing (25) and the fixed shaft (16), and are symmetrically arranged.
3. A differential torsional fatigue test structure according to claim 2, characterized in that: The test operation platform (1) is fixedly connected to a fixing seat (3) near the top of the first I-beam frame (2); an oil box (31) is fixedly connected to the top of the fixing seat (3); a bracket (32) is fixedly connected inside the oil box (31); a rotating wheel (33) is rotatably connected to the middle of the bracket (32); a rope loop (34) is sleeved between the outer side wall of the rotating wheel (33) and the end of the differential body (15) away from the fixed shaft (16).
4. A differential torsional fatigue test structure according to claim 3, characterized in that: The top of the test operation platform (1) away from the fixed seat (3) is fixedly connected to a column (4); the top of the column (4) is hinged with a support arm (41); the top of the support arm (41) away from the column (4) is fixedly connected to a funnel (42); and the bottom of the funnel (42) is provided with a dropper (43).
5. A differential torsional fatigue testing structure according to claim 4, characterized in that: The bottom of the test operation platform (1) is fixedly connected with a damper (5); a plurality of groups of the dampers (5) are arranged at the bottom of the test operation platform (1) and are evenly distributed at the four corners of the bottom of the test operation platform (1).
6. A differential torsional fatigue test structure according to claim 5, characterized in that: The bottom of the damper (5) is fixedly connected with a universal wheel (6); the universal wheel (6) is arranged at the bottom of multiple groups of dampers (5).
7. A differential torsional fatigue testing structure according to claim 6, characterized in that: The test operation platform (1) is fixedly connected with a protective plate (7) near the motor fixing frame (11) and the top of the column (4); the protective plate (7) is made of metal material.
8. A differential torsional fatigue testing structure according to claim 7, characterized in that: The slide groove (27) is fixedly connected to the limiting block (8) inside the second I-beam frame (21) away from the inside.