CN217484082U - High-frequency torsion fatigue test device for rubber products - Google Patents
High-frequency torsion fatigue test device for rubber products Download PDFInfo
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- CN217484082U CN217484082U CN202220835171.6U CN202220835171U CN217484082U CN 217484082 U CN217484082 U CN 217484082U CN 202220835171 U CN202220835171 U CN 202220835171U CN 217484082 U CN217484082 U CN 217484082U
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Abstract
The utility model relates to the technical field of fatigue test devices, in particular to a high-frequency torsion fatigue test device for rubber products, which comprises a test board, wherein the test board is provided with an upper loading platform and a lower driving platform positioned below the upper loading platform; the upper loading platform is provided with a loading assembly which is used for performing a torsion test on the rubber product and can adjust the loading position on the upper loading platform, and the lower driving platform is provided with a driving assembly which is used for driving the loading assembly to perform torsion loading and can adjust the driving position on the lower driving platform; the driving assembly comprises a driving motor and a driving disc, and the torsion assembly is arranged between the driving disc and the loading assembly. The position of a first torsion center between the middle torsion assembly and the driving disc of the utility model is adjustable, and the position of a second torsion center between the torsion assembly and the loading assembly is adjustable, so as to adjust the loading angle according to the torsion fatigue performance of the rubber product under various working conditions; meanwhile, the loading frequency of above 10Hz can be realized for the rubber product by providing driving force through the driving motor.
Description
Technical Field
The utility model relates to a high frequency of rubber component twists reverse fatigue test device belongs to fatigue test device technical field.
Background
The rubber product can bear the functions of traction, suspension, vibration isolation and buffering, is widely applied to vibration reduction systems of rail transit, high-speed vehicles, automobiles, ships or airplanes, and can bear a deflection torsion angle and a radial load through the deformation of the rubber product when a body bears complex load working conditions such as radial load, torsion load, deflection load and the like, so that the body is prevented from turning over during running, and the riding comfort of drivers and passengers is improved. The rubber product generally comprises metal bodies and a rubber body vulcanized between the metal bodies, and when the rubber product is designed and developed, in order to ensure the stability of the running of a vehicle body, a loading device is generally required to be used for detecting the torsional fatigue performance of the rubber product. In the prior art, the following test equipment relates to the torsional fatigue performance test of mechanical products including rubber products:
1. the utility model discloses a utility model patent of publication number "CN 202149843U", the patent name "a rubber ball pivot loading fatigue test device" includes at least one and contacts with experimental rubber ball pivot and to the torsional force application device of experimental rubber ball pivot applied torsion test power. The utility model discloses a rubber ball pivot loading fatigue test device can carry out radial, deflection, twist reverse three-dimensional fatigue loading test to rubber ball pivot under the radial load that rubber ball pivot bore and deflection torque mutually perpendicular's condition. However, the patent has the following disadvantages: the torsion test of the rubber ball hinge in the patent is realized through an oil cylinder, generally, in engineering practice, the torsion working condition is that the loading frequency is generally not more than 5Hz due to large loading displacement, but the loading frequency above 10Hz can be realized by part of product requirements, and the loading frequency above 10Hz is difficult to realize through oil cylinder loading.
2. The utility model discloses a be "CN 109406124A", the patent name is "a leaf spring twists reverse test check out test set"'s utility model patent, this check out test set includes the base, the leaf spring fixed establishment of setting on the base and the actuating mechanism who drives the leaf spring motion, leaf spring fixed establishment is including setting up leaf spring fixing base and the leaf spring mount pad at the base both ends relatively, be provided with rectangle fixed orifices A along base length direction on the leaf spring fixing base, the leaf spring mount pad includes mount pad A and the mount pad B that relative interval set up, all correspond on mount pad A and the mount pad B and be provided with the mounting hole, be provided with the torsion shaft in mount pad A and mount pad B's the mounting hole, be provided with rectangle fixed orifices B along its axis direction on the torsion shaft, rectangle fixed orifices B sets up and is located same axis with rectangle fixed orifices A relatively, the epaxial fixedly connected with connecting rod of torsion. The utility model discloses a simple structure is compact, thereby accessible motor drives the link mechanism swing and drives the reciprocal rotation of leaf spring, realizes the torsional fatigue test to the leaf spring, simple structure, the operation of being convenient for. However, the following disadvantages still exist:
1) although the detection device in the patent is not driven by the oil cylinder in the prior art 1 any more, but is driven by the motor, higher loading frequency can be realized to a certain extent, but the detection device is used for detecting the torsional fatigue test of the plate spring, does not relate to the fatigue test detection of rubber products, and needs to be studied whether the high-frequency torsional fatigue test of the rubber products can be carried out or not;
2) in the patent, the distance between the motor and the flywheel disc is not adjustable, the integral position of the motor and the flywheel disc is also not adjustable, the applicable loading working condition is limited, and the universality is not strong;
3) although the specification of the patent discloses that the reciprocating rotation angle of the torsion shaft can be adjusted according to the connecting position and the size of the flywheel, the swing rod and the connecting rod, and the control of the torsion angle of the plate spring is realized, the torsion swing angle in the scheme is +/-35 degrees, the structure and the mode of how to adjust the connecting position and the angle of the flywheel, the swing rod and the connecting rod are not disclosed, the torsion swing angle limited in the patent is +/-35 degrees, and the adjustable range is too narrow.
To sum up, how to design an accessible motor drive and carry out the high frequency torsion test to rubber component, can adjust the angle of torsion according to the operating condition demand simultaneously, and the big fatigue test device of angular adjustment scope, the problem that needs to solve now urgently.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fatigue test device is twistd reverse to rubber component's high frequency can be according to rubber component twist reverse fatigue performance adjustment loading angle under various operating modes, and accessible driving motor provides the required drive power of high frequency loading.
In order to achieve the above object, the utility model provides a following technical scheme: a high-frequency torsion fatigue test device for rubber products comprises a test bench, wherein the test bench comprises an upper loading platform and a lower driving platform positioned below the upper loading platform; the upper loading platform is provided with a loading assembly which is used for performing a torsion test on the rubber product and can adjust the loading position on the upper loading platform, and the lower driving platform is provided with a driving assembly which is used for driving the loading assembly to perform torsion loading and can adjust the driving position on the lower driving platform; the driving assembly comprises a driving motor and a driving disc arranged at the power output end of the driving motor, a torsion assembly is arranged between the driving disc and the loading assembly, the position of a torsion center I between the torsion assembly and the driving disc is adjustable, and the position of a torsion center II between the torsion assembly and the loading assembly is adjustable.
Preferably, the lower driving platform is provided with a mounting plate for placing the driving motor, and the mounting plate can adjust the mounting position in the longitudinal direction of the lower driving platform; the mounting plate is provided with a transverse sliding groove, and the driving motor can transversely slide on the transverse sliding groove.
Preferably, a coupling is arranged on one side of the driving motor close to the driving disc, and a connecting shaft is fixed between the coupling and the driving disc; the driving disk is driven by a driving motor and rotates at the outer side of the lower driving platform.
Preferably, the connecting shaft is provided with at least one supporting bearing assembly, and a bearing seat of the supporting bearing assembly is transversely and slidably connected to the mounting plate.
Preferably, the torsion assembly comprises a first connecting rod connected with the driving disc; the end face of one side, far away from the connecting shaft, of the driving disc is provided with a first adjusting groove in the radial direction, and the position of a first twisting center between the first connecting rod and the driving disc can be adjusted through the first adjusting groove.
Preferably, the first adjusting groove is a T-shaped groove, and the first connecting rod is provided with a first T-shaped connecting block which can be slidably connected into the first adjusting groove; the position of a first torsion center between the first connecting rod and the driving disc slides in the first T-shaped adjusting groove through the first T-shaped connecting block to be adjusted.
Preferably, the torsion assembly comprises a second connecting rod; one end of the second connecting rod is connected with the first connecting rod, and the other end of the second connecting rod is connected with the loading assembly; the driving disc can drive the connecting rod II to twist through the connecting rod I, and then drive the rubber product on the loading assembly to twist through the connecting rod II so as to carry out a twisting fatigue test.
Preferably, the second connecting rod is provided with a second adjusting groove; the other end of the first connecting rod, which is far away from the driving disc, is provided with a second connecting block which can slide in the second adjusting groove to adjust the position of a third twisting center between the first connecting rod and the second connecting rod.
Preferably, the loading assembly comprises a torsion shaft connected with the second connecting rod, and the torsion shaft is connected to one side of the second connecting rod, which is opposite to the first connecting rod.
Preferably, the upper loading platform is provided with a third adjusting groove, and the loading assembly can move on the upper loading platform through the third adjusting groove to adjust the position of a second torsion center between the torsion shaft and the second connecting rod.
The utility model has the advantages that:
1. the utility model discloses an in, the torsional loading angle of rubber component is adjusted to the three center of torsion of accessible to adapt to different rubber component's loading demand, specifically as follows:
1) a first torsion center: the first torsion center is a connection part between the first connecting rod and the driving disc; a first T-shaped adjusting groove is formed in the end face of the driving disc in the radial direction, a first connecting block capable of sliding in the first T-shaped adjusting groove is arranged between the first connecting rod and the driving disc, and the position of a first twisting center can be adjusted by sliding the first connecting block in the first adjusting groove;
2) a second torsion center: the second torsion center is a joint of a torsion shaft and the second connecting rod in the loading assembly; the loading assembly slides in the adjusting groove III on the upper loading platform to drive the torsion shaft to slide along the adjusting groove II on the connecting rod II so as to adjust the position of the torsion center II;
3) a third torsion center: the third torsion center is a joint of the first connecting rod and the second connecting rod; the connecting rod I is provided with a connecting block II which can slide in the adjusting groove II, and the position of a torsion center III between the connecting rod I and the connecting rod II can be adjusted by sliding the connecting block II in the adjusting groove II.
Through the three adjustable torsion centers, the torsion angle can be adjusted according to the loading requirements of different rubber products, the angle adjustment range is wide, the torsion device is suitable for the loading requirements of most rubber products, and the universality is high.
2. The utility model discloses an in, can adjust the position of driving motor and driving-disc on drive platform down to further adapt to the loading of different loading demand rubber component, specifically do: the mounting position of the mounting plate in the longitudinal direction of the lower driving platform can be adjusted so as to integrally adjust the positions of the driving motor and the driving disc; the position of the torsion disc can be adjusted by sliding the driving motor laterally on the lateral sliding groove of the mounting plate.
3. In the utility model, the driving motor can control the rotating speed, and the twisting frequency of the driving disk is adjusted by the driving motor; the coupling enables the driving motor and the connecting shaft to be in flexible connection, so that the service performance and the service life of the driving motor can be improved; the support bearing assembly can ensure the consistency of the central axes among the driving motor, the connecting shaft and the driving disc, and can provide good support function for the connecting shaft.
Drawings
FIG. 1 is a schematic diagram of an overall structure of a testing apparatus according to a first embodiment.
FIG. 2 is a front view of the test device in one embodiment.
Description of reference numerals:
1. an upper loading platform; 2. a lower drive platform; 3. loading the component; 4. a rubber article; 5. a torsion shaft; 6. a drive motor; 7. a drive disc; 8. a first torsion center; 9. a second torsion center; 10. a third torsion center; 11. mounting a plate; 12. a transverse chute; 13. a coupling; 14. a connecting shaft; 15. a bearing seat; 16. a first connecting rod; 17. a first adjusting groove; 18. a first connecting block; 19. a second connecting rod; 20. a second adjusting groove; 21. a second connecting block; 22. a third adjusting groove; 24. an adjustment hole; 25. a support pillar; 26. a support frame.
Detailed Description
The present invention is described in further detail below with reference to fig. 1-2. The transverse direction in the following embodiments is the direction indicated by M in fig. 1, and the longitudinal direction is the direction indicated by N in fig. 1.
Example one
A high-frequency torsion fatigue test device for rubber products comprises a test bench, as shown in figure 1, the test bench comprises an upper loading platform 1, an adjusting groove III 22 and a loading component 3 for carrying out torsion test on rubber products 4 are arranged on the upper loading platform 1, and when the fatigue test is carried out, the rubber products 4 to be tested are placed on the loading component 3 for loading; the loading assembly 3 can be adjusted in position by moving the adjustment slot three 2 on the upper loading platform 1. The loading assembly 3 comprises a torsion shaft 5, and the rubber product 4 is driven to twist by the torsion shaft 5 for fatigue test.
As shown in fig. 1, the upper loading platform 1 is supported by supporting columns 25, and a lower driving platform 2 located below the upper loading platform 1 is arranged between the supporting columns 25; the lower driving platform 2 is provided with a driving assembly for driving the loading assembly 3 to perform torsional loading, and the driving assembly comprises a driving motor 6 and a driving disc 7 arranged at the power output end of the driving motor 6; the lower driving platform 2 is provided with an installation plate 11, the driving motor 6 is placed on the installation plate 11, and the driving disc 7 and the driving motor 6 are connected to the outer side of the lower driving platform 2; a coupling 13 is arranged on one side of the driving motor 6 close to the driving disc 7, and a connecting shaft 14 is fixed between the coupling 13 and the driving disc 7; the driving disk 7 is driven by the driving motor 6 and rotates at the outer side of the lower driving platform 2; a transverse sliding groove 12 is arranged on the mounting plate 11, and the driving motor 6 can transversely slide on the transverse sliding groove 12; at least one supporting bearing assembly is arranged on the connecting shaft 14, in this embodiment, two supporting bearing assemblies are specifically arranged, and a bearing seat 15 of each supporting bearing assembly is connected to the mounting plate 11 to support the connecting shaft 14; the position of the support bearing assembly on the mounting plate 11 is adjustable by means of the transverse slide 12, and the position of the drive motor 6 on the mounting plate 11 is also adjustable. The drive motor 6 can control the rotational speed, whereby the torsion frequency of the drive disc 7 is adjusted by means of the drive motor 6, whereby a loading frequency of more than 10Hz, which is required for certain operating conditions, is achieved.
The lower driving platform 2 comprises a first supporting frame 26 positioned in the longitudinal direction and a second supporting frame positioned in the transverse direction, a plurality of adjusting holes 24 are uniformly distributed on the first supporting frame 26 along the longitudinal direction, and a fixing part connected with the adjusting holes 24 is arranged on the mounting plate 11; the adjusting holes 24 are pin holes or threaded holes, the fixing pieces are fixing pins or fixing bolts matched with the adjusting holes 24, the adjusting holes 24 in the embodiment are threaded holes, and the fixing pieces are fixing bolts; the mounting plate 11 can be mounted at different adjusting holes 24 according to the processing requirements of different rubber products 4, so as to adjust the mounting position of the mounting plate 11 in the longitudinal direction of the lower driving platform 2, and further adjust the driving position of the driving assembly.
As shown in fig. 1 and 2, a torsion assembly is arranged between the driving disc 7 and the loading assembly 3, and the torsion assembly comprises a first connecting rod 16 and a second connecting rod 19. The first connecting rod 16 is connected with the driving disc 7, a first adjusting groove 17 is radially arranged on the end face of one side, away from the connecting shaft 14, of the driving disc 7, and the first adjusting groove 17 is a T-shaped groove; the first connecting rod 16 is provided with a first T-shaped connecting block 18 which can be slidably connected in the first adjusting groove 17, and the position of a first torsion center 8 between the first connecting rod 16 and the driving disc 7 can be adjusted by sliding the first T-shaped connecting block 18 in the first T-shaped adjusting groove 17. The other end of the first connecting rod 16, which is far away from the driving disc 7, is connected with a second connecting rod 19, and a second adjusting groove 20 is formed in the second connecting rod 19; the other end of the first connecting rod 16, which is far away from the driving disc 7, is provided with a second connecting block 21 which can slide in the second adjusting groove 20, and the position of the third torsion center 10 between the first connecting rod 16 and the second connecting rod 19 can be adjusted through the second connecting block 21.
One side of the second connecting rod 19, which is opposite to the first connecting rod 16, is connected with the loading assembly 3 through the torsion shaft 5; the position of the second torsion center 9 between the second connecting rod 19 and the torsion shaft 5 can be adjusted by sliding the loading assembly 3 on the upper loading platform 1.
The implementation mode is as follows:
mounting the mounting plate 11 on a first support frame 26 through an adjusting hole 24; obtaining a torsion angle required by the rubber product 4 according to an actual working condition, and adjusting the positions of the first torsion center 8, the second torsion center 9 and the third torsion center 10 to match the torsion angle required by the rubber product 4; the driving motor 6 is started, the driving motor 6 drives the driving disc 7 to rotate, the driving disc 7 drives the first connecting rod 16 to rotate and swing, the first connecting rod 16 drives the second connecting rod 19 to rotate and swing, and then the second connecting rod 19 drives the rubber product 4 on the loading assembly 3 to twist through the twisting shaft 5, so that the rubber product 4 is subjected to a twisting fatigue test.
Example two
The difference between the first embodiment and the second embodiment is that a fourth adjusting groove is longitudinally formed in the first supporting frame 26, a sliding block matched with the fourth adjusting groove is arranged at the lower end of the mounting plate 11, and the first supporting frame 26 slides in the fourth adjusting groove through the sliding block to adjust the position of the driving assembly.
The above embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications without inventive contribution to the embodiments of the present invention as needed after reading the present specification, but all the embodiments of the present invention are protected by patent laws within the scope of the claims of the present invention.
Claims (10)
1. A high-frequency torsion fatigue test device for rubber products comprises a test bench, and is characterized in that the test bench comprises an upper loading platform (1) and a lower driving platform (2) positioned below the upper loading platform (1); the upper loading platform (1) is provided with a loading assembly (3) which is used for performing a torsion test on the rubber product (4) and can adjust the loading position on the upper loading platform (1), and the lower driving platform (2) is provided with a driving assembly which is used for driving the loading assembly (3) to drive the rubber product (4) to perform torsion loading and can adjust the driving position on the lower driving platform (2); the driving assembly comprises a driving motor (6) and a driving disc (7) arranged at the power output end of the driving motor (6), a torsion assembly is arranged between the driving disc (7) and the loading assembly (3), the position of a torsion center I (8) between the torsion assembly and the driving disc (7) is adjustable, and the position of a torsion center II (9) between the torsion assembly and the loading assembly (3) is adjustable.
2. The high-frequency torsional fatigue test device for the rubber products according to claim 1, wherein the lower driving platform (2) is provided with a mounting plate (11) for placing the driving motor (6), and the mounting plate (11) can be adjusted in the mounting position in the longitudinal direction of the lower driving platform (2); the mounting plate (11) is provided with a transverse sliding groove (12), and the driving motor (6) can transversely slide on the transverse sliding groove (12).
3. The high-frequency torsion fatigue test device for the rubber products according to claim 2, wherein a coupling (13) is arranged on one side of the driving motor (6) close to the driving disc (7), and a connecting shaft (14) is fixed between the coupling (13) and the driving disc (7); the driving plate (7) is driven by the driving motor (6) and rotates at the outer side of the lower driving platform (2).
4. A high frequency torsional fatigue test apparatus for rubber products according to claim 3, wherein the connecting shaft (14) is provided with at least one supporting bearing assembly, and a bearing seat (15) of the supporting bearing assembly is transversely slidably connected to the mounting plate (11).
5. A high frequency torsion fatigue test device of rubber products according to claim 4, wherein said torsion assembly comprises a first connecting rod (16) connected with a driving disc (7); the end face of one side, far away from the connecting shaft (14), of the driving disc (7) is provided with a first adjusting groove (17) in the radial direction, and the position of a first twisting center (8) between the first connecting rod (16) and the driving disc (7) can be adjusted through the first adjusting groove (17).
6. The high-frequency torsional fatigue test device for rubber products as claimed in claim 5, wherein the first adjusting groove (17) is a T-shaped groove, and the first connecting rod (16) is provided with a first T-shaped connecting block (18) which is slidably connected into the first adjusting groove (17); the position of a first torsion center (8) between the first connecting rod (16) and the driving disc (7) is adjusted by sliding the first T-shaped connecting block (18) in the first T-shaped adjusting groove (17).
7. A high frequency torsional fatigue test apparatus for rubber products as in claim 6, wherein said torsional assembly comprises a second link (19); one end of the second connecting rod (19) is connected with the first connecting rod (16), and the other end of the second connecting rod (19) is connected with the loading assembly (3); the driving disc (7) can drive the connecting rod II (19) to twist through the connecting rod I (16), and then drive the rubber product (4) on the loading assembly (3) to twist through the connecting rod II (19) so as to carry out a twisting fatigue test.
8. The high-frequency torsional fatigue test device for rubber products according to claim 7, characterized in that the second connecting rod (19) is provided with a second adjusting groove (20); one end of the first connecting rod (16) far away from the driving disc (7) is provided with a second connecting block (21) which can slide in the second adjusting groove (20) to adjust the position of a third twisting center (10) between the first connecting rod (16) and the second connecting rod (19).
9. A high frequency torsional fatigue test device for rubber products according to claim 8, wherein the loading assembly (3) comprises a torsion shaft (5) connected with the second connecting rod (19), and the torsion shaft (5) is connected with the side, opposite to the first connecting rod (16), of the second connecting rod (19).
10. The high-frequency torsion fatigue testing device for the rubber products as claimed in claim 9, wherein an adjusting groove III (22) is arranged on the upper loading platform (1), and the loading assembly (3) can move to a position on the upper loading platform (1) through the adjusting groove III (22) so as to adjust the position of a torsion center II (9) between the torsion shaft (5) and the connecting rod II (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220835171.6U CN217484082U (en) | 2022-04-12 | 2022-04-12 | High-frequency torsion fatigue test device for rubber products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220835171.6U CN217484082U (en) | 2022-04-12 | 2022-04-12 | High-frequency torsion fatigue test device for rubber products |
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| Publication Number | Publication Date |
|---|---|
| CN217484082U true CN217484082U (en) | 2022-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220835171.6U Active CN217484082U (en) | 2022-04-12 | 2022-04-12 | High-frequency torsion fatigue test device for rubber products |
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| CN (1) | CN217484082U (en) |
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2022
- 2022-04-12 CN CN202220835171.6U patent/CN217484082U/en active Active
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