CN110967155B - Rigidity testing device for flexible disk of automatic transmission - Google Patents
Rigidity testing device for flexible disk of automatic transmission Download PDFInfo
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- CN110967155B CN110967155B CN201910937620.0A CN201910937620A CN110967155B CN 110967155 B CN110967155 B CN 110967155B CN 201910937620 A CN201910937620 A CN 201910937620A CN 110967155 B CN110967155 B CN 110967155B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
- G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/027—Test-benches with force-applying means, e.g. loading of drive shafts along several directions
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Abstract
The invention relates to a rigidity testing device for a flexible disk of an automatic transmission.A torsion loader is connected with a torque sensor and can provide torque load required by testing; the torque sensor is connected with the torsional rigidity clamping device through the transmission shaft, and can measure the torque load applied by the torsional loader in real time; the angle sensor and the displacement sensor are arranged at the tail end of the torsional rigidity clamping device and are used for measuring a corner and axial displacement generated in the test process; the axial loader is of a gear-rack type structure, is connected with the force sensor through threads, and can apply axial load; one end of the force sensor is connected with the axial loader, the other end of the force sensor is connected with the axial rigidity clamping device through threads, and the displacement sensor is arranged at the tail end of the axial rigidity clamping device. The problem of bending deformation in the sample assembling and adjusting process is solved, the influence of a small-rigidity shaft type accompanying test piece on a test result can be eliminated, the axial deformation degree of the flexible disk can be freely adjusted, and the requirement for measuring the torsional rigidity under different deformation degrees is met.
Description
Technical Field
The invention relates to the technical field of automobile part tests, in particular to a rigidity testing device for a flexible disk of an automatic transmission.
Background
The flexible disk is a key component on the automatic transmission, and connects an engine flywheel and a clutch of the automatic transmission to realize power transmission. The flexible disk bears torque load in the torsion direction, so that the torsion rigidity and the torsion strength of the flexible disk need to be ensured, and meanwhile, the flexible disk can generate certain deformation in the axial direction to eliminate the accumulated dimension error in the axial direction of the engine and the transmission, so that the axial rigidity of the flexible disk is not too large, and the damage to the clutch caused by applying larger pressure or pulling force to the clutch after assembly is avoided. Based on the functional characteristics of the flexible disk, a bench test is required to determine whether the torsional rigidity, the torsional strength and the axial rigidity meet the requirements. Wherein the torsional stiffness needs to be measured at different degrees of axial deformation.
Because the flexible disk has the characteristics of large torsional rigidity and small axial rigidity, the following conditions are required to be met in the test process: (1) the coaxiality of the positioning of the inner ring and the outer ring needs to be ensured, and the extra bending deformation of a sample piece caused by the connection of different shafts is avoided; (2) the influence of the shaft connecting part with small rigidity on the test result is avoided; (3) the flexible disk should be capable of varying degrees of deformation in the axial direction, depending on the experimental requirements.
In the country, there are a number of test devices that can perform stiffness measurements, such as: patent document 1 (CN 106052983A) discloses a simple test device and a test method for dynamic and static torsional rigidity of an elastic coupling; patent document 2 (CN 208125396U) discloses a device and a method for measuring torsional rigidity of a rubber bush, which are simple in structure, easy to operate, high in accuracy, and low in cost. Although the test device can measure the torsional rigidity, the tested sample piece is not a flexible part, the problem of coaxial positioning of the flexible part is not considered, the torsional rigidity test under the condition of different degrees of axial deformation cannot be realized, and the test requirement is not met. Patent document 3 (CN 107631821A) describes a dynamic stress test method and a test apparatus for a flexible disk, in which although a test object is a flexible component, the test object is mainly used for a stress test and is not suitable for a rigidity test of the flexible disk.
Disclosure of Invention
The invention aims to provide a rigidity testing device for a flexible disk of an automatic transmission, which can be used for testing the torsional rigidity and the axial rigidity of the flexible disk, solves the problem of bending deformation in the process of assembling and adjusting a sample, can eliminate the influence of a small-rigidity shaft test piece on a test result, can freely adjust the axial deformation degree of the flexible disk, and meets the requirement of measuring the torsional rigidity under different deformation degrees.
The purpose of the invention is realized by the following technical scheme:
a rigidity testing device for a flexible disk of an automatic transmission comprises a loader, a first sensor, a clamping device and a second sensor; the loader is a torsion loader 1 or an axial loader 7; the first sensor is a torque sensor 2 or a force sensor 8; the clamping device is a torsional rigidity clamping device 4 or an axial rigidity clamping device 9; the second sensor is an angle sensor 5 and/or a displacement sensor 6;
the torsion loader 1 is connected with the torque sensor 2 and can provide torque load required by testing; the torque sensor 2 is connected with the torsional rigidity clamping device 4 through the transmission shaft 3, and can measure the torque load applied by the torsional loader 1 in real time; the angle sensor 5 and the displacement sensor 6 are arranged at the tail end of the torsional rigidity clamping device 4 and are used for measuring the rotation angle and the axial displacement generated in the test process;
the axial loader 7 is of a gear-rack type structure, is connected with the force sensor 8 through threads, and can apply axial load; one end of the force sensor 8 is connected with the axial loader 7, the other end of the force sensor is connected with the axial rigidity clamping device 9 through threads, and the displacement sensor 6 is arranged at the tail end of the axial rigidity clamping device 9.
The torsional rigidity clamping device 4 comprises a flange 10, a shaft 11, a first locking nut 12, a forward loading nut 13, a first thrust bearing 14, an end cover 15, a support 16, a spacer 17, a deep groove ball bearing 18, a mounting plate 19, a flexible disk 20 to be tested, a flexible disk fastening nut 21, a tail frame 22, a second thrust bearing 23, a reverse loading nut 24 and a second locking nut 25; the shaft 11 comprises 7 parts including a first spline shaft a, a second spline shaft d, a first stud b, a second stud e, a third stud g, a first optical axis c and a second optical axis f; the flange 10 is in clearance fit with a first spline shaft a on the shaft 11, the coaxiality of the flange and the first spline shaft a is ensured by spline tooth side positioning, a second spline shaft d on the shaft 11 is matched with a spline hub on the flexible disk 20, the coaxiality of the spline shaft d and the spline hub is ensured by spline tooth side positioning, a second stud e on the shaft 11 and a shaft shoulder on the flexible disk 20 are abutted against the end face of the spline hub on the shaft 11 and are in threaded connection with the flexible disk fastening nut 21, and the end face of the flexible disk fastening nut 21 is abutted against and tightly clamped with the spline hub on the flexible disk 20; the first optical axis c on the shaft 11 is in clearance fit with the inner ring of the deep groove ball bearing 18 to ensure the coaxiality of the two, and the clearance fit relation can enable the shaft to move along the axial direction together with the spline hub on the flexible disk under the action of external force; the number of the deep groove ball bearings 18 is two, the outer rings of the two deep groove ball bearings are matched with the inner holes of the support 16, the two deep groove ball bearings are positioned through the spacer sleeve 17, the two ends of each deep groove ball bearing are axially positioned through the mounting plate 19 and the end cover 15, and the bearings are guaranteed not to axially move in the testing process; the mounting plate 19 is mounted on the support 16 through bolts and positioned through the seam allowance, and the nut on the outer ring of the flexible disk 20 is connected with the mounting plate 19 through a standard bolt. The structure of the mounting plate 19 needs to be designed according to the flexible disk 20, a certain gap is left between the end surface of the mounting plate and a spline hub on the flexible disk 20, the size of the gap is determined according to test conditions, the forward loading nut 13 is in threaded connection with the first stud b on the shaft 11, the first thrust bearing 14 is pressed on the end cover 15 by the end surface of the forward loading nut 13, the forward loading nut 13 is rotated clockwise, the shaft 11 can move leftwards relative to the support 16, and the flexible disk 20 is axially deformed; the first locking nut 12 is connected with the first stud b on the shaft 11 through threads, and the end face of the first locking nut is close to the forward loading nut 13 to play a role in locking; the tail stock 22 is fastened on the support 16 through bolts, the second optical axis f passes through a U-shaped groove in the tail stock 22 and is not in contact with the tail stock 22, the reverse loading nut 24 is in threaded connection with a third stud g on the shaft 11, the end face of the reverse loading nut 24 presses the second thrust bearing 23 on the tail stock 22, and the reverse loading nut 24 is rotated to realize that the shaft 11 moves rightwards relative to the support 16; the second locking nut 25 is connected with the third stud g on the shaft 11 through threads, and the end face of the second locking nut is close to the reverse loading nut 24 to play a role in locking; the third stud g on the shaft 11 is matched with the angle sensor 5, so that the rotating angle of the shaft can be measured; the end surface of the shaft 11 is contacted with the displacement sensor 6, and the axial displacement of the shaft can be measured
The axial rigidity clamping device 9 comprises a shaft 11, an end cover 15, a support 16, a mounting plate 19, a flexible disk 20 to be tested, a flexible disk fastening nut 21, a transition flange 26 and a linear motion bearing 27; wherein the other components except the transition flange 26 and the linear motion bearing 27 are shared with the torsional rigidity clamping device 4; the left end of the shaft 11 is connected with the force sensor 8 through threads, and an optical axis c is in clearance fit with an inner ring of the linear motion bearing 27, so that axial low-friction relative motion can be generated between the optical axis c and the inner ring; the number of the transition flanges 26 is two, one transition flange is arranged between the end cover 15 and the support 16, the other transition flange is arranged between the mounting plate 19 and the support 16, and an inner hole of the transition flange is matched with an outer ring of the linear motion bearing 27; the two ends of the linear motion bearing 27 are axially positioned through the end cover 15 and the mounting plate 19; the end cover 15 and the mounting plate 19 are fixed on the bracket 16 through bolts; the spline hub on the flexible disk 20 is mounted on a second spline shaft d on the shaft 11 and is fastened through a flexible disk fastening nut 21; the nut on the outer ring of the flexible disk 20 is arranged on the mounting plate 19 through a bolt; the displacement sensor 6 is in end face contact with the shaft 11.
The beneficial effects are as follows:
the device for testing the rigidity of the flexible disk provided by the invention realizes accurate measurement of the torsional rigidity and the axial rigidity of the flexible disk, and can realize switching between the torsional rigidity test and the axial rigidity test through simple debugging, thus realizing dual purposes of one machine.
The invention solves the problem of bending deformation in the sample assembling and adjusting process, can eliminate the influence of the small-rigidity shaft type test piece on the test result, can freely adjust the axial deformation degree of the flexible disk, and meets the requirement of measuring the torsional rigidity under different deformation degrees. The structure is simple, the operation is convenient, the repeated use is realized, the maintenance cost is low, the processing and the assembly are easy, and the precision is easy to control.
Drawings
FIG. 1 is a schematic diagram of a torsional rigidity test of a flexible disk rigidity testing device according to the present invention;
FIG. 2 is a schematic view of a flexible disk clamp for testing torsional rigidity of the flexible disk rigidity testing device according to the present invention;
FIG. 3 is a schematic axial view of a flexible disk rigidity testing device according to the present invention;
FIG. 4 is a schematic view of the axial stiffness test of the flexible disk stiffness testing device according to the present invention;
FIG. 5 is a schematic view of an axial stiffness test flexible disk clamp of the flexible disk stiffness testing device of the present invention;
the reference numbers in the figures are: 1. a torsion loader; 2. a torque sensor; 3. a drive shaft; 4. a torsional rigidity clamping device; 5. an angle sensor; 6. a displacement sensor; 7. an axial loader; 8. a force sensor; 9. an axial rigidity clamping device; 10. a flange; 11 shafts; 12. locking the nut; 13. a forward loading nut; 14. a thrust bearing; 15. an end cap; 16. a support; 17. a spacer sleeve; 18. a deep groove ball bearing; 19. mounting a plate; 20. a flexible disk; 21. a flexible disk fastening nut; 22. a tailstock; 23. a thrust bearing; 24. a reverse loading nut; 25. locking the nut; 26. a transition flange; 27. a linear motion bearing; a. a first spline shaft; b. a first stud; c. a first optical axis; d. a second spline shaft; e. a second stud; f. a second optical axis; g. and a third stud.
Detailed Description
For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the invention, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.
The present invention will be described in further detail with reference to the accompanying drawings.
Example one
FIG. 1 is a testing apparatus for testing torsional rigidity of a flexible disk according to the present invention. As shown in fig. 1, the apparatus includes: the device comprises a torsion loader 1, a torque sensor 2, a transmission shaft 3, a torsion rigidity clamping device 4, an angle sensor 5 and a displacement sensor 6. The torsion loader 1 is connected with the torque sensor 2 and can provide torque load required by testing; the torque sensor 2 is connected with the flexible disk clamping device through the transmission shaft 3, and can measure the torque load applied by the torsion loader 1 in real time;
the angle sensor 5 and the displacement sensor 6 are arranged at the tail end of the torsional rigidity clamping device 4 and are used for measuring the rotation angle and the axial displacement generated in the test process;
as shown in fig. 2, the torsional rigidity clamping device 4 includes a flange 10, a shaft 11, a first lock nut 12, a forward loading nut 13, a first thrust bearing 14, an end cover 15, a bracket 16, a spacer 17, a deep groove ball bearing 18, a mounting plate 19, a flexible disk 20, a flexible disk fastening nut 21, a tail stock 22, a second thrust bearing 23, a reverse loading nut 24 and a second lock nut 25.
As shown in fig. 3, the shaft 11 includes 7 parts, namely a first spline shaft a, a second spline shaft d, a first stud b, a second stud e, a third stud g, and a first optical axis c and a second optical axis f; the flange 10 is in clearance fit with the first spline shaft a on the shaft 11, and the coaxiality of the flange and the first spline shaft a is ensured by spline tooth side positioning. The second spline shaft d on the shaft 11 is matched with the spline hub on the flexible disk 20, and the coaxiality of the second spline shaft d and the spline hub is ensured through spline tooth side positioning. The splined hub end surface on the flexible disk 20 abuts a shoulder on the shaft 11. The second stud e on the shaft 11 is in threaded connection with the flexible disk tightening nut 21, the end face of the flexible disk tightening nut 21 abutting against the splined hub of the flexible disk 20, clamping it. The first optical axis c on the shaft 11 is in clearance fit with the inner ring of the deep groove ball bearing 18 to ensure the coaxiality of the two, and the clearance fit relation can enable the shaft to move along the axial direction together with the spline hub on the flexible disk under the action of external force. The number of the deep groove ball bearings 18 is two, the outer ring of each deep groove ball bearing is matched with the inner hole of the support 16, the two deep groove ball bearings are positioned through the spacer sleeve 17, the two ends of each deep groove ball bearing are axially positioned through the mounting plate 19 and the end cover 15, and axial movement of the bearings is prevented in the testing process. The mounting plate 19 is mounted on the support 16 through bolts and positioned through the seam allowance, and the nut on the outer ring of the flexible disk 20 is connected with the mounting plate 19 through a standard bolt. The structure of the mounting plate 19 needs to be designed according to the flexible disk 20, a certain gap is left between the end face of the mounting plate and the spline hub on the flexible disk 20, and the size of the gap is determined according to test conditions. The support 16 is an integrated support processed after welding, the plate thickness of the support needs to be designed according to test conditions, deformation in the test process is avoided, the test result is prevented from being influenced, and a rib plate can be added if necessary. The forward loading nut 13 is connected with the first stud b on the shaft 11 through a thread, the end face of the forward loading nut 13 presses the first thrust bearing 14 on the end cover 15, and the forward loading nut 13 is rotated clockwise, so that the shaft 11 can move leftwards relative to the bracket 16, and the flexible disk 20 is deformed axially. The first locking nut 12 is connected with the first stud b on the shaft 11 through threads, and the end surface of the first locking nut is close to the forward loading nut 13 to play a role in locking. The reverse loading nut 24 is in threaded connection with a third stud g on the shaft 11, the end face of the reverse loading nut 24 presses the second thrust bearing 23 on the tailstock 22, and the shaft 11 can move rightwards relative to the bracket 16 by rotating the reverse loading nut 24. The second locking nut 25 is connected with the third stud g on the shaft 11 through threads, and the end face of the second locking nut abuts against the reverse loading nut 24 to play a locking role. The tailstock 22 is fastened to the support 16 by means of bolts, and can be seen as a single piece with the support. The tail frame 22 needs to be designed according to test conditions, so that deformation in the test process is avoided to influence the test result, and a rib plate can be added if necessary. And an optical axis f on the shaft 11 passes through the U-shaped groove on the tailstock and is not in contact with the tailstock. The third stud g on the shaft 11 cooperates with the angle sensor 5 to measure the angle of rotation of the shaft. The end face of the shaft 11 is in contact with the displacement sensor 6, and the axial displacement of the shaft can be measured.
The working process of the flexible disk rigidity testing device provided by the first embodiment is as follows:
before testing, the forward loading nut 13, the reverse loading nut 24, the first locking nut 12 and the second locking nut 25 are all in a non-locking state, the torsion loader 1 is not loaded, and at the moment, the flexible disk 20 is in a free state in the axial direction and the circumferential direction. And adjusting the displacement sensor 6 to be in the middle position of the full range, and clearing. The forward loading nut 13 is rotated clockwise to move the shaft 11 to the left, and the splined hub on the flexible disk 20 is moved to the left by the shaft by an amount equal to the amount of displacement of the shaft 11. The axial displacement is monitored in real time through the displacement sensor 6, and when the axial position required by the test is adjusted, the first locking nut 12 is locked. The loading is carried out through the torsion loader 1, the loaded torque is monitored in real time through the torque sensor 2, and the rotation angle of the shaft is monitored in real time through the rotation angle sensor 5. And calculating the torsional rigidity of the flexible disk through the torque and the rotation angle. Similarly, the axial right-hand movement can be achieved by reverse loading the nut 13, and the torsional stiffness of the flexible disk can be tested in the case of reverse deformation.
During the loading process, the shaft 11 and the forward locking nut 13 have a certain rotation tendency relative to the bracket 16, and because the forward loading nut 13 and the end cover 15 adopt the first thrust bearing 14, the friction force is extremely small and can be ignored in the torsional rigidity test.
Due to different structures, the torsional rigidity of the shaft 11 is far smaller than that of the flexible disk 20, and the rotation angle sensor 5 is arranged at the tail end of the shaft 11, so that the influence on the test result of the torsional rigidity of the flexible disk due to the deformation of the shaft 11 in the loading process can be avoided.
Example two
Fig. 4 is a test device for testing axial stiffness of a flexible disk provided by the invention. As shown in fig. 4, the device comprises an axial loader 7, a force sensor 8, an axial rigidity clamping device 9 and a displacement sensor 6. The axial loader 7 is of a gear-rack type structure, is connected with the force sensor 8 through threads, and can apply axial load; one end of the force sensor 8 is connected with the axial loader 7, and the other end of the force sensor is connected with the axial rigidity clamping device 9 through threads.
As shown in fig. 5, the axial rigidity clamping device 9 comprises a displacement shaft 11, an end cover 15, a bracket 16, a mounting plate 19, a flexible disk 20, a flexible disk fastening nut 21, a transition flange 26 and a linear motion bearing 27; the remaining components, with the exception of the transition flange 26 and the linear motion bearing 27, are shared with the torsional rigidity clamping device 4. The left end of the shaft 11 is connected with the force sensor 8 through threads, and the optical axis c is in clearance fit with the inner ring of the linear motion bearing 27, so that axial low-friction relative motion can be generated between the optical axis c and the inner ring. The two transition flanges 26 are arranged, one is arranged between the end cover 15 and the support 16, the other is arranged between the mounting plate 19 and the support 16, and the inner holes of the transition flanges are matched with the outer ring of the linear motion bearing 27 to play a role in supporting and positioning. The linear motion bearing 27 is axially positioned at both ends by the end cap 15 and the mounting plate 19. The end cap 15 and the mounting plate 19 are both bolted to the bracket 16. The splined hub on the flexible disk 20 is mounted on the splined shaft d on the shaft 11 and is tightened by a flexible disk tightening nut 21. The nut on the outer ring of the flexible disk 20 is mounted on the mounting plate 19 by means of a bolt. The displacement sensor 6 is in end face contact with the shaft 11.
The working process of the flexible disk rigidity testing device provided by the second embodiment is as follows:
before testing, the axial loader 7 is in a free state, the flexible disk 20 is in a free state, and the force sensor 8 has a reading of 0N. And adjusting the displacement sensor 6 to be in the middle position of the full range, and clearing. And slowly operating the axial loader 7 for loading, monitoring the axial force and the axial displacement in real time through the force sensor 8 and the displacement sensor 6, and calculating the axial rigidity of the flexible disk.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (1)
1. A rigidity testing device for a flexible disk of an automatic transmission is characterized in that: the device comprises a loader, a first sensor, a clamping device and a second sensor; the loader is a torsion loader (1) or an axial loader (7); the first sensor is a torque sensor (2) or a force sensor (8); the clamping device is a torsional rigidity clamping device (4) or an axial rigidity clamping device (9); the second sensor is an angle sensor (5) and/or a displacement sensor (6);
the torsion loader (1) is connected with the torque sensor (2) and can provide torque load required by testing; the torque sensor (2) is connected with the torsional rigidity clamping device (4) through the transmission shaft (3), and can measure the torque load applied by the torsional loader (1) in real time; the angle sensor (5) and the displacement sensor (6) are arranged at the tail end of the torsional rigidity clamping device (4) and are used for measuring the rotation angle and the axial displacement generated in the test process;
the axial loader (7) is of a rack and pinion structure, is in threaded connection with the force sensor (8), and can apply axial load; one end of the force sensor (8) is connected with the axial loader (7), the other end of the force sensor is connected with the axial rigidity clamping device (9) through threads, and the displacement sensor (6) is arranged at the tail end of the axial rigidity clamping device (9);
the torsional rigidity clamping device (4) comprises a flange (10), a shaft (11), a first locking nut (12), a forward loading nut (13), a first thrust bearing (14), an end cover (15), a support (16), a spacer bush (17), a deep groove ball bearing (18), a mounting plate (19), a flexible disk to be tested (20), a flexible disk fastening nut (21), a tail frame (22), a second thrust bearing (23), a reverse loading nut (24) and a second locking nut (25); the shaft (11) comprises 7 parts including a first spline shaft a, a second spline shaft d, a first stud b, a second stud e, a third stud g, a first optical axis c and a second optical axis f; the flange (10) is in clearance fit with a first spline shaft a on the shaft (11), and is positioned through the spline tooth side, and the flange and the shaft are coaxial; a second spline shaft d on the shaft (11) is matched with a spline hub on the flexible disk (20) and is positioned through a spline tooth side, and the two are coaxial; the end surface of a spline hub on the flexible disk (20) abuts against a shaft shoulder on the shaft (11), a second stud e on the shaft (11) is in threaded connection with a flexible disk fastening nut (21), and the end surface of the flexible disk fastening nut (21) abuts against the spline hub of the flexible disk (20) to clamp the flexible disk; a first optical axis c on the shaft (11) is in clearance fit with an inner ring of the deep groove ball bearing (18), and the first optical axis c and the inner ring are coaxial; the number of the deep groove ball bearings (18) is two, the outer rings of the deep groove ball bearings are matched with the inner hole of the support (16), the two deep groove ball bearings are positioned through a spacer bush (17), and the two ends of each deep groove ball bearing are axially positioned through a mounting plate (19) and an end cover (15); the mounting plate (19) is mounted on the support (16) through bolts and positioned through the spigot, and the nut on the outer ring of the flexible disk (20) is connected with the mounting plate (19) through a standard bolt;
the structure of the mounting plate (19) needs to be designed according to the flexible disk (20), a gap is reserved between the end face of the mounting plate and a spline hub on the flexible disk (20), the forward loading nut (13) is in threaded connection with a first stud b on the shaft (11), the first thrust bearing (14) is pressed on the end cover (15) by the end face of the forward loading nut (13), and the shaft (11) can move leftwards relative to the support (16) by rotating the forward loading nut (13) clockwise; the first locking nut (12) is in threaded connection with a first stud b on the shaft (11), and the end face of the first locking nut is close to the forward loading nut (13) to play a locking role; the tail frame (22) is fastened on the support (16) through bolts, and the second optical axis f penetrates through a U-shaped groove in the tail frame (22) and is not in contact with the tail frame (22); the reverse loading nut (24) is in threaded connection with a third stud g on the shaft (11), the end face of the reverse loading nut (24) presses the second thrust bearing (23) on the tailstock (22), the reverse loading nut (24) is rotated, and the shaft (11) moves rightwards relative to the bracket (16); the second locking nut (25) is in threaded connection with a third stud g on the shaft (11), and the end face of the second locking nut is close to the reverse loading nut (24) to play a locking role; a third stud g on the shaft (11) is matched with the angle sensor (5); the end surface of the shaft (11) is contacted with the displacement sensor (6);
the axial rigidity clamping device (9) comprises a shaft (11), an end cover (15), a support (16), a mounting plate (19), a flexible disk (20) to be tested, a flexible disk fastening nut (21), a transition flange (26) and a linear motion bearing (27); wherein except the transition flange (26) and the linear motion bearing (27), other components are shared with the torsional rigidity clamping device (4); the left end of the shaft (11) is connected with the force sensor (8) through threads, the optical axis c is in clearance fit with the inner ring of the linear motion bearing (27), and axial low-friction relative motion can be generated between the optical axis c and the inner ring; the number of the transition flanges (26) is two, one transition flange is arranged between the end cover (15) and the support (16), the other transition flange is arranged between the mounting plate (19) and the support (16), and an inner hole of the transition flange is matched with an outer ring of the linear motion bearing (27); the two ends of the linear motion bearing (27) are axially positioned through the end cover (15) and the mounting plate (19); the end cover (15) and the mounting plate (19) are fixed on the bracket (16) through bolts; the spline hub on the flexible disk (20) is arranged on a second spline shaft d on the shaft (11) and is fastened through a flexible disk fastening nut (21); the nut on the outer ring of the flexible disk (20) is arranged on the mounting plate (19) through a bolt; the displacement sensor (6) is in end face contact with the shaft (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910937620.0A CN110967155B (en) | 2019-09-30 | 2019-09-30 | Rigidity testing device for flexible disk of automatic transmission |
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| CN201910937620.0A CN110967155B (en) | 2019-09-30 | 2019-09-30 | Rigidity testing device for flexible disk of automatic transmission |
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| CN110967155B true CN110967155B (en) | 2021-10-15 |
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| CN112067216B (en) * | 2020-08-12 | 2021-12-10 | 南京航空航天大学 | Rigidity testing device and rigidity testing method for aero-engine sleeve tooth connecting structure |
| CN112557011B (en) * | 2020-12-09 | 2022-04-29 | 安徽江淮汽车集团股份有限公司 | Deformation amount testing device |
| CN114061983A (en) * | 2021-11-19 | 2022-02-18 | 山东蓬翔汽车有限公司 | Device for detecting axial force of hub and bearing displacement in real time by applying torque |
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| CN209432445U (en) * | 2019-01-18 | 2019-09-24 | 重庆青山工业有限责任公司 | A kind of gearshift fork stiffness and strength experimental rig |
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| CN204807321U (en) * | 2015-07-03 | 2015-11-25 | 建新赵氏集团有限公司 | Rigidity test fixture of gearbox suspension |
| CN106568559A (en) * | 2016-11-05 | 2017-04-19 | 上海大学 | Measuring device for twisting rigidity of flexible bearing |
| CN107631821A (en) * | 2017-10-26 | 2018-01-26 | 中国第汽车股份有限公司 | The dynamic stress testing method and test device of a kind of flexible disk |
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| CN108871766A (en) * | 2018-07-11 | 2018-11-23 | 广东南大机器人有限公司 | A kind of harmonic reducer torsional rigidity test platform |
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| CN109614707A (en) * | 2018-12-12 | 2019-04-12 | 东北大学 | It is a kind of based on multi-diameter shaft-flexible disk coupled system dynamic modeling method |
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