CN113551905A - Coupling fatigue test equipment - Google Patents
Coupling fatigue test equipment Download PDFInfo
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- CN113551905A CN113551905A CN202110835563.2A CN202110835563A CN113551905A CN 113551905 A CN113551905 A CN 113551905A CN 202110835563 A CN202110835563 A CN 202110835563A CN 113551905 A CN113551905 A CN 113551905A
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- 230000008878 coupling Effects 0.000 title claims abstract description 55
- 238000010168 coupling process Methods 0.000 title claims abstract description 55
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 55
- 238000009661 fatigue test Methods 0.000 title claims abstract description 23
- 238000009434 installation Methods 0.000 claims abstract description 52
- 238000012360 testing method Methods 0.000 claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 230000009467 reduction Effects 0.000 claims abstract description 4
- 230000000149 penetrating effect Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 7
- 235000017491 Bambusa tulda Nutrition 0.000 description 7
- 241001330002 Bambuseae Species 0.000 description 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 7
- 239000011425 bamboo Substances 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 238000010008 shearing Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000001066 destructive effect Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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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
- G01M13/022—Power-transmitting couplings or clutches
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a coupling fatigue test device which comprises a workbench, wherein a test motor is connected to the upper surface of the workbench, an output shaft of the test motor is connected with a positioning shaft through a reduction gearbox, the positioning shaft is connected with a positioning flange coaxial with the positioning shaft, the upper surface of the workbench is provided with an installation box, the installation box is rotatably connected with a connecting shaft coaxial with the positioning flange, the connecting shaft is fixedly provided with a connecting flange, the installation box is provided with a limiting component for preventing the connecting shaft from rotating, two ends of a coupling to be tested are fixed on the positioning flange and the connecting flange, and the upper surface of the workbench is provided with a driving mechanism for driving the installation box to move towards the direction vertical to the axis of the coupling. Acting on the driving mechanism to enable the mounting box to move towards the direction vertical to the axis of the coupler, so that the radial stress of the coupler can be conveniently tested.
Description
Technical Field
The invention relates to the technical field of anti-fatigue tests, in particular to a fatigue test device for a coupler.
Background
The wind driven generator is a device for converting electric energy into mechanical energy, and the mechanical energy drives a rotor to rotate so as to finally output alternating current. The wind-driven generator generally comprises wind wheels, a generator set, a direction regulator, a tower, a speed-limiting safety mechanism, an energy storage device and other components. The wind wheel drives the generator set to work under the blowing of wind, so that electric energy is generated. The wind wheel is mainly connected with a coupler of the generator set, and the strength and the stability of the coupler also determine the efficiency and the service life of the wind driven generator. In order to ensure the quality of the coupling, the fatigue test of the coupling is often required in the production process so as to meet the requirements of different practical works.
In the correlation technique, in the process of testing the detection coupler, one end of the coupler is fixed through a bolt and is kept still, the other end of the coupler is connected with a motor through a flange, the motor is started to drive the flange to rotate, and the flange drives the coupler to generate destructive deformation in the rotating process, so that the torque when the coupler generates destructive deformation is obtained.
For the above related art, the inventor thinks that the coupler needs to test not only the torque of the coupler but also the radial stress of the coupler before leaving the factory, and the related art has the defect that the radial stress of the coupler cannot be tested.
Disclosure of Invention
In order to facilitate the test to the radial atress of shaft coupling, this application provides a shaft coupling fatigue test equipment.
The application provides a coupling fatigue test equipment adopts following technical scheme:
the utility model provides a shaft coupling fatigue test equipment, includes the workstation, the workstation upper surface is connected with test motor, test motor output shaft is connected with the location axle through the reducing gear box, be connected with the flange with the coaxial location of axle on the location axle, the workstation upper surface is provided with the install bin, rotate on the install bin be connected with the coaxial connecting axle of flange, be fixed with flange on the connecting axle, be provided with on the install bin and prevent connecting axle pivoted spacing subassembly, the both ends of the shaft coupling that awaits measuring are fixed on flange and flange, the workstation upper surface is provided with the drive the install bin is towards the actuating mechanism of perpendicular to shaft coupling axis direction motion.
By adopting the technical scheme, the test motor drives the positioning flange, the connecting flange and the coupling connected between the positioning flange and the connecting flange to rotate, in the rotating process, the test motor acts on the driving mechanism to enable the driving mechanism to drive the mounting box to move towards the axis perpendicular to the coupling, in the moving process of the mounting box, the coupling is subjected to radial shearing force, and the fatigue strength of the coupling when the coupling is subjected to radial force is measured by combining the mode with the measuring instrument.
Optionally, the workstation upper surface is fixed with connects the platform, connect the sliding tray that the platform up end offered the perpendicular to shaft coupling axis along the horizontal direction, the joint that slides of install bin is in the sliding tray, actuating mechanism is including fixing the driving motor at the mount pad up end, be fixed with the worm on the driving motor output shaft, the workstation upper surface rotates and is connected with the worm wheel with worm meshing, be provided with on the worm wheel and run through the worm wheel and with the coaxial driving screw of worm wheel, driving screw with worm wheel threaded connection, driving screw fixes on the install bin and promote the install bin is in slide in the sliding tray.
By adopting the technical scheme, the driving motor is started to drive the worm to rotate, the worm drives the worm wheel meshed with the worm to rotate, the worm wheel is in the rotating process, the driving screw connected to the worm wheel in a threaded mode pushes the installation box to slide in the sliding groove, and the installation box slides in the sliding groove to enable the coupler to be subjected to radial shearing force.
Optionally, the limiting assembly comprises a limiting column fixed on the outer wall of the connecting shaft, the limiting column is far away from the end face of the connecting flange, a plurality of limiting holes are formed in the end face of the connecting flange, a limiting frame is arranged in the installation box in a sliding mode, a plurality of through holes are formed in the limiting frame, the side wall of the installation box can be clamped to the limiting rod in the limiting hole, and a driving cylinder for pushing the limiting frame to move towards the connecting flange is fixed in the installation box.
Through adopting above-mentioned technical scheme, when the fatigue strength of shaft coupling when receiving the circumference moment of torsion is measured to needs, act on and drive actuating cylinder, make and drive actuating cylinder and promote spacing frame and move towards the direction that is close to flange, the gag lever post inserts spacing downthehole, prevents that flange from rotating, and the test motor starts, and shaft coupling one end is fixed, and the other end rotates along with the output shaft of test motor together to measure the moment of torsion that shaft coupling circumference can bear.
Optionally, the upper surface of the workbench is connected with an installation table, the upper surface of the installation table is provided with a drive table in a sliding manner, the test motor and the reduction gearbox are fixed on the upper surface of the drive table, the upper surface of the installation table is provided with a drive groove parallel to the axis of the positioning shaft, the lower surface of the drive table is fixed with a drive block in a sliding and clamping manner in the drive groove, and a drive screw rod penetrating through the drive block and in threaded connection with the drive block and an installation motor driving the drive screw rod to rotate are arranged in the drive groove.
Through adopting above-mentioned technical scheme, the installation motor starts, drives the drive block and glides in the sliding tray, and the drive block drives the drive table and moves along the direction that is close to or keeps away from flange on the mount table upper surface at the in-process that slides to the distance of flange and flange is adjusted according to the length of shaft coupling, satisfies the demand of different shaft coupling lengths.
Optionally, the mounting groove that is vertical setting is seted up to the workstation upper surface, the rotation groove has been seted up to the mounting groove inner wall, it is connected with the rotation ring gear to rotate the inslot internal rotation, the mounting groove internal fixation has the rotation motor, be fixed with on the rotation motor with the slewing gear who rotates the ring gear meshing, the workstation upper surface vertical set up with the coaxial arc wall of drive ring gear, be provided with on the mount table and be located the drive post in the arc wall, the vertical seting up of rotation ring gear upper surface runs through the ring gear joint groove rotates, but be fixed with the joint on the drive post and arrive joint piece in the joint inslot.
Through adopting above-mentioned technical scheme, joint piece joint is in the joint inslot, and the drive block is fixed on the mount table, rotates the motor and drives the running gear rotation, and running gear drives and rotates the ring gear rotation, rotates the ring gear and passes through the joint piece and drive the drive post rotation, drives the mount table and rotates at the workstation upper surface under the effect of drive post to the fatigue strength of test shaft coupling when receiving along circumference's extrusion.
Optionally, the inner wall of the mounting groove is provided with an auxiliary groove coaxial with the rotating groove, the auxiliary groove is located below the rotating groove, the auxiliary groove is rotationally connected with an auxiliary toothed ring coaxial with the auxiliary groove, the rotating motor is fixed with an auxiliary gear meshed with the auxiliary toothed ring, the driving column vertically penetrates through the mounting table, the auxiliary toothed ring is vertically provided with a connecting groove which penetrates through the auxiliary toothed ring and is right opposite to the clamping groove, the driving column is fixed with a connecting block which can be clamped into the connecting groove, the distance between the connecting block and the clamping block is greater than the distance from the upper surface of the rotating toothed ring to the lower surface of the auxiliary toothed ring, the connecting block is provided with a buffer device which is abutted against the inner wall of the connecting groove and enables the auxiliary toothed ring to act on the connecting block, the bottom wall of the arc-shaped groove is provided with a yielding groove coaxial with the arc-shaped groove, the groove of stepping down can be used to accomodate the connecting block, the drive post runs through surface about the mount table and the setting of sliding are in on the mount table, be provided with on the mount table and make joint piece joint in the joint inslot or make the locating component of connecting block joint in the spread groove.
By adopting the technical scheme, the clamping block is clamped in the clamping groove, the connecting block is separated from the connecting groove, and the rotating toothed belt drives the clamping block to rotate so as to simulate the force applied to the coupling on the wind wheel suddenly by strong wind; the joint piece breaks away from the joint groove, and in the connecting block joint to the spread groove, the auxiliary gear rotated the in-process, acted on buffer, buffer drove the connecting block and rotates, and when simulation wind-force constantly changed, the wind wheel was used the power on the shaft coupling.
Optionally, the positioning assembly includes a fixed column fixed on the upper surface of the mounting table, a positioning column penetrating through the fixed column is arranged on the fixed column, the driving column has a first positioning groove and a second positioning groove opposite to the side wall of the fixed column, the distance between the first positioning groove and the second positioning groove is equal to the distance between the clamping block and the connecting block, the first positioning groove is located above the second positioning groove and clamped in the first positioning groove when the positioning column is clamped in the connecting groove, the connecting block is clamped in the connecting groove, a positioning rod is fixed on the positioning column, and a positioning spring which is connected with the fixed column and pulls the positioning column to move towards the direction close to the driving column is fixed on the positioning rod.
By adopting the technical scheme, under the action of the positioning spring, the positioning column is pulled to be clamped in the first positioning groove, the connecting block is clamped in the connecting groove, the auxiliary gear ring drives the connecting block clamped in the connecting groove to rotate, and the driving column connected to the clamping block drives the mounting table to rotate; when the positioning column is clamped in the second positioning groove, the clamping block is clamped in the clamping groove, the rotating toothed belt drives the clamping block clamped in the clamping groove to rotate, the driving column connected to the connecting block drives the mounting table to rotate, and the requirements of different testing conditions are met.
Optionally, the connecting block lateral wall has been seted up the dashpot, buffer includes wears to establish buffer block in the dashpot, the dashpot internal fixation promotes the buffer block orientation the buffer spring of dashpot external motion, the buffer block outer wall be fixed with the butt in the butt frame of dashpot inner wall, the dashpot inner wall is fixed with and prevents the butt frame breaks away from the fender frame of dashpot, buffer still is including setting up buffer unit on the connecting block.
Through adopting above-mentioned technical scheme, supplementary ring gear is at the pivoted in-process, and the buffer block butt is on the inside wall of spread groove, and buffer spring compresses gradually, and the power of using on the connecting block is bigger and bigger, and the power of using on the wind wheel under the different wind speeds of simulation makes the shaft coupling carry out fatigue test under the environment of difference.
Optionally, the buffering subassembly is including fixing installation section of thick bamboo on the connecting block, wear to be equipped with the installation pole in the installation section of thick bamboo, installation section of thick bamboo inner wall be fixed with a plurality of with the coaxial installation bulge loop of installation section of thick bamboo, installation pole outer wall be fixed with the coaxial butt bulge loop of installation pole, butt bulge loop external diameter is greater than installation bulge loop internal diameter, the butt bulge loop is the rubber ring and can follow the opposite side of installation bulge loop one side along axial motion to installation bulge loop.
Through adopting above-mentioned technical scheme, supplementary ring gear earlier with the installation pole butt at the pivoted in-process to promote the installation pole towards the interior motion of installation section of thick bamboo, the butt bulge loop produces deformation, moves to the opposite side from one side of installation bulge loop through the extrusion, and this process is used for simulating when wind wheel is used to discontinuous wind, and the atress of shaft coupling changes.
Optionally, a first opening penetrating through the mounting convex rings is axially formed in the mounting convex rings, a second opening penetrating through the abutting convex rings is axially formed in the abutting convex rings, and the first opening and the second opening form a complete virtual circular ring.
Through adopting above-mentioned technical scheme, supplementary ring gear promotes the installation pole towards the interior motion of installation section of thick bamboo, and the butt bulge loop produces deformation, moves to the opposite side from one side of installation bulge loop through the extrusion, rotates the installation pole, makes opening and second opening be the dislocation set, and the installation pole of being convenient for is extracted from the installation section of thick bamboo.
In summary, the present application includes at least one of the following beneficial technical effects:
1. fixing a coupler on a connecting flange and a positioning flange, driving the coupler to rotate by a test motor, and acting on a driving motor in the rotating process to drive a mounting box to move towards the direction vertical to the axis of the coupler by the driving motor so as to enable the coupler to be subjected to radial shearing force, thereby measuring the fatigue strength of the coupler when the coupler is subjected to the radial force;
2. the rotating motor drives the rotating toothed ring to rotate, the rotating toothed ring drives the clamping block to rotate, and the clamping block drives the mounting table to rotate, so that the fatigue strength of the coupler during extrusion along the circumferential direction is measured.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
FIG. 2 is a schematic view of a connection structure of a driving table on a mounting table according to an embodiment of the present application.
Fig. 3 is a schematic view of a connection structure of a driving mechanism on a mounting box according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a drive mechanism according to an embodiment of the present application.
FIG. 5 is a schematic view of a connection structure of the rotary toothed ring and the auxiliary toothed ring on the worktable according to the embodiment of the application.
Fig. 6 is a schematic view of a connection structure of the auxiliary ring gear, the rotary ring gear and the rotary motor according to the embodiment of the present application.
FIG. 7 is a schematic view of a connection structure of a damping device on a connection block according to an embodiment of the present application.
FIG. 8 is a schematic structural diagram of a cushion assembly according to an embodiment of the present application.
Description of reference numerals:
1. a work table; 2. an installation table; 3. a drive stage; 4. testing the motor; 5. positioning the shaft; 6. positioning the flange; 7. a connecting table; 8. installing a box; 9. a connecting shaft; 10. a connecting flange; 11. a drive slot; 12. a drive block; 13. driving a lead screw; 14. installing a motor; 15. a sliding groove; 16. a drive motor; 17. a worm; 18. a support plate; 19. a worm gear; 20. a drive screw; 21. a limiting column; 22. a limiting hole; 23. a limiting frame; 24. a push rod; 25. a driving cylinder; 26. a push ring; 27. a limiting rod; 28. mounting grooves; 29. a rotating groove; 30. rotating the toothed ring; 31. rotating the motor; 32. a rotating gear; 33. an arc-shaped slot; 34. a drive column; 35. a clamping groove; 36. a clamping block; 37. an auxiliary groove; 38. an auxiliary gear ring; 39. an auxiliary gear; 40. connecting grooves; 41. connecting blocks; 42. a yielding groove; 43. fixing a column; 44. a positioning column; 45. a first positioning groove; 46. a second positioning groove; 47. positioning a rod; 48. a positioning spring; 49. a buffer tank; 50. a buffer block; 51. a buffer spring; 52. a butting frame; 53. a blocking frame; 54. mounting the cylinder; 55. mounting a rod; 56. installing a convex ring; 57. abutting the convex ring; 58. a first gap; 59. a second gap.
Detailed Description
The present application is described in further detail below with reference to figures 1-8.
The embodiment of the application discloses a coupling fatigue test device. Referring to fig. 1, a coupling fatigue test equipment, including fixing at subaerial workstation 1, workstation 1 upper surface is provided with mount table 2, and 2 upper surfaces of mount table slide and are provided with drive table 3, and 3 upper surface of drive table are fixed with test motor 4, and test motor 4 output shaft is connected with the location axle 5 that is the level setting through the reducing gear box, and the welding has the flange 6 of location coaxial 5 on the axle 5 of location. The upper surface of the workbench 1 is fixed with a connecting platform 7 through bolts, the upper surface of the connecting platform 7 is provided with an installation box 8, the installation box 8 is connected with a connecting shaft 9 in a rotating mode, the connecting shaft 9 is coaxial and opposite to the positioning shaft 5, the connecting shaft 9 is welded with a connecting flange 10 coaxial with the connecting shaft 9, the connecting flange 10 is coaxial with the connecting shaft 9, the shaft coupling is connected with the positioning flange 6 and the connecting flange 10, and the shaft coupling is coaxial with the positioning flange 6 and two ends of the shaft coupling are fixed on the positioning flange 6 and the connecting flange 10 through bolts.
Referring to fig. 1 and 2, a driving groove 11 parallel to the positioning shaft 5 is formed in the upper surface of the mounting table 2, the cross section of the driving groove 11 is in a T shape, a driving block 12 slidably clamped in the driving groove 11 is welded on the lower surface of the driving table 3, the cross section of the driving block 12 is in a T shape and attached to the inner wall of the driving groove 11, a driving screw 13 is rotatably connected in the driving groove 11, and the driving screw 13 horizontally penetrates through the driving block 12 and is in threaded connection with the driving block 12. The side wall of the mounting table 2 is fixed with a mounting motor 14 through a bolt, and an output shaft of the mounting motor 14 is welded on the driving screw 13 and drives the driving screw 13 to rotate. The driving screw 13 rotates to drive the driving block 12 and the driving platform 3 connected to the driving block 12 to move towards or away from the connecting flange 10, so that the distance between the positioning flange 6 and the connecting flange 10 is adjusted according to the length of the coupler.
Referring to fig. 3 and 4, a sliding groove 15 is formed in the upper surface of the connecting table 7, the sliding groove 15 is perpendicular to the axis of the connecting shaft 9 and penetrates through two side walls of the connecting table 7 along a direction perpendicular to the axis of the connecting shaft 9, the installation box 8 is slidably clamped in the sliding groove 15, and the outer side wall of the installation box abuts against the inner walls of the two sides of the sliding groove 15. The upper surface of the workbench 1 is provided with a driving mechanism for driving the installation box 8 to slide in the sliding groove 15, the driving mechanism comprises a driving motor 16 fixed on the upper surface of the workbench 2 through bolts, a worm 17 coaxial with an output shaft of the driving motor 16 is welded on an output shaft of the driving motor 16, the worm 17 is parallel to the connecting shaft 9, the upper surface of the workbench 1 is welded with a support plate 18 vertically arranged, the worm 17 is positioned between the two support plates 18, a worm wheel 19 connected with the two support plates 18 is arranged on the support plate 18, and the worm wheel 19 is rotatably connected on the opposite side walls of the two support plates 18 and meshed with the worm 17. The worm wheel 19 is provided with a driving screw 20 penetrating the worm wheel 19 and the two support plates 18, and the driving screw 20 is coaxial with the worm wheel 19 and is in threaded connection with the worm wheel 19. The end of the drive screw 20 near the mounting box 8 is welded to the outer wall of the mounting box 8.
Referring to fig. 3 and 4, be provided with on the install bin 8 and prevent connecting axle 9 pivoted spacing subassembly, spacing subassembly includes integrated into one piece in the spacing post 21 of connecting axle 9 outer wall, spacing post 21 is coaxial with connecting axle 9, spacing post 21 is kept away from flange 10's terminal surface and has been seted up a plurality of spacing holes 22, a plurality of spacing holes 22 are along spacing post 21 circumference evenly distributed, the slip is provided with spacing frame 23 in the install bin 8, spacing frame 23 lateral wall butt is on install bin 8 inside wall, a plurality of push rods 24 that are on a parallel with connecting axle 9 axis are welded to the one end that spacing frame 23 is close to flange 10, push rod 24 level runs through install bin 8 lateral wall, install bin 8 inner wall has drive actuating cylinder 25 through bolted connection, drive actuating cylinder 25 is located the one end that push rod 24 was kept away from to spacing frame 23, the tip welding of drive actuating cylinder 25 connecting rod is on the terminal surface of spacing frame 23, and promote spacing frame 23 towards the direction motion that is close to flange 10. The end portion of the push rod 24 located outside the installation box 8 is welded with a push ring 26 sleeved outside the connecting shaft 9, the end face of the push ring 26 far away from the push rod 24 is welded with a plurality of limiting rods 27, the limiting rods 27 correspond to the limiting holes 22 one by one, the driving cylinder 25 is started, the limiting frame 23 and the push rod 24 connected to the limiting frame 23 are pushed to move towards the outside of the installation box 8, the push ring 26 is made to push the limiting rods 27 to be clamped in the corresponding limiting holes 22, and the connecting flange 10 is prevented from rotating.
Referring to fig. 5 and 6, the upper surface of the workbench 1 is provided with a vertically arranged mounting groove 28, the projection of the mounting groove 28 on the horizontal ground is a circular ring, the inner wall of the outer side of the mounting groove 28 is provided with a rotating groove 29 coaxial with the mounting groove 28, the rotating groove 29 is rotationally connected with a rotating toothed ring 30 coaxial with the mounting groove 28, the bottom wall of the mounting groove 28 is fixed with a rotating motor 31 through a bolt, the output shaft of the rotating motor 31 is vertically arranged, the output shaft of the rotating motor 31 is welded with a rotating gear 32 coaxial with the output shaft of the rotating motor 31, the rotating gear 32 is meshed with the rotating toothed ring 30, the upper surface of the workbench 1 is vertically provided with an arc-shaped groove 33 coaxial with the mounting groove 28, the mounting table 2 is connected with a driving column 34 extending into the arc-shaped groove 33, the rotating toothed ring 30 is partially positioned in the arc-shaped groove 33, the upper surface of the rotating toothed ring 30 is provided with a clamping groove 35, the clamping groove 35 vertically penetrates through the upper and lower surfaces of the rotating toothed ring 30 and radially penetrates through the outer side wall of the rotating toothed ring 30, the side wall of the driving column 34 is integrally formed with a clamping block 36 which can be clamped in the clamping groove 35. The rotating motor 31 drives the rotating gear 32 to rotate, the rotating gear 32 drives the clamping block 36 and the driving column 34 to rotate, and the driving column 34 drives the mounting table 2 to rotate, so that one end of the coupler is driven to rotate relative to the other end of the coupler, the situation that the force is applied to the wind wheel instantly when strong wind acts is simulated, and the fatigue strength of the two ends of the coupler during circumferential extrusion is tested.
Referring to fig. 5 and 6, an auxiliary groove 37 coaxial with the mounting groove 28 is formed in the inner wall of the mounting groove 28, the auxiliary groove 37 is located below the rotating groove 29, an auxiliary gear ring 38 coaxial with the auxiliary groove 37 is rotatably connected in the auxiliary groove 37, an auxiliary gear 39 coaxial with an output shaft of the rotating motor 31 is welded on an output shaft of the rotating motor 31, the auxiliary gear 39 is meshed with the auxiliary gear ring 38, the driving column 34 vertically penetrates through the upper surface and the lower surface of the mounting table 2 and can slide in the vertical direction, a connecting groove 40 is formed in the upper surface of the auxiliary gear ring 38, the connecting groove 40 vertically penetrates through the upper surface and the lower surface of the auxiliary gear ring 38 and radially penetrates through the outer side wall of the auxiliary gear ring 38, the connecting groove 40 is opposite to the clamping groove 35, a connecting block 41 capable of being clamped into the connecting groove 40 is integrally formed on the driving column 34, and the connecting block 41 and the clamping block 36 are located on the same side of the driving column 34. The distance between the connecting block 41 and the catching block 36 is greater than the distance from the upper surface of the rotary ring gear 30 to the lower surface of the auxiliary ring gear 38, and when the connecting block 41 is caught in the connecting groove 40, the catching block 36 is separated from the catching groove 35.
Referring to fig. 5 and 6, the bottom wall of the arc-shaped groove 33 is provided with a yielding groove 42 having the same shape as the arc-shaped groove 33, the yielding groove 42 can be used for accommodating the connecting block 41, when the connecting block 41 is clamped in the connecting groove 40, the clamping block 36 is separated from the clamping groove 35, and the height of the clamping block 36 in the vertical direction is higher than that of the clamping groove 35 in the vertical direction; when the connecting block 41 moves downwards and is separated from the connecting groove 40, the connecting block 41 extends into the abdicating groove 42, the clamping block 36 is clamped in the clamping groove 35, and the upper surface of the mounting table 2 is provided with a positioning component which enables the clamping block 36 to be clamped in the clamping groove 35 or enables the connecting block 41 to be clamped in the connecting groove 40. Locating component is including welding the fixed column 43 at 2 upper surfaces of mount table, fixed column 43 is vertical setting, be provided with the level on the fixed column 43 and run through the reference column 44 of fixed column 43, reference column 44 perpendicular to drive column 34's lateral wall, drive column 34 has just seted up first constant head tank 45 and second constant head tank 46 to the lateral wall of reference column 44, first constant head tank 45 is located second constant head tank 46 top, and the distance between first constant head tank 45 and the second constant head tank 46 equals the distance between joint piece 36 and the connecting block 41, when the joint of positioning column 44 is in first constant head tank 45, connecting block 41 joint is in connecting groove 40, in positioning column 44 joint second constant head tank 46, joint piece 36 joint to joint 35. Positioning post 44 upper surface integrated into one piece has locating lever 47, and locating lever 47 is located the fixed column 43 and keeps away from one side of drive post 34, and the welding has the positioning spring 48 that is the level setting on the fixed column 44, and positioning spring 48 one end welding is on positioning lever 47, and the other end welding is on fixed column 43 and the pulling reference column 44 joint is to first constant head tank 45 or second constant head tank 46 in.
Referring to fig. 7 and 8, the lateral wall of the connecting block 41 is provided with a buffer device which can be abutted against the inner wall of the connecting groove 40, the lateral wall of the connecting block 41 is provided with a buffer groove 49, the buffer device comprises a buffer block 50 which is arranged in the buffer groove 49 in a penetrating manner, a buffer spring 51 is fixed in the buffer groove 49, one end of the buffer spring 51 is welded on the bottom wall of the buffer groove 49, the other end of the buffer block 50 is welded on the buffer block 50 and pushes the buffer block 50 to move outwards towards the buffer groove 49, the outer wall of the buffer block 50 is integrally formed with an abutting frame 52, the lateral wall of the abutting frame 52 is attached to the inner wall of the sliding groove 15 and is located at one end close to the buffer spring 51, the inner wall of the opening position of the buffer groove 49 is bonded with a blocking frame 53 which prevents the abutting frame 52 from being separated from the buffer groove 49, and the buffer block 50 is arranged in the blocking frame 53 in a penetrating manner.
The auxiliary toothed ring 38 is in the pivoted in-process, and the buffer block 50 butt gradually pushes the buffer block 50 to move towards the buffer slot 49, makes the power of using on the buffer block 50 increase gradually, thereby makes the power of using on drive column 34, mount table 2 and shaft coupling increase gradually, pushes the mount table 2 to rotate after increasing to a certain degree for when simulating the continuous grow of wind-force, the power of wind wheel use on the shaft coupling, thereby the fatigue strength of shaft coupling under this environment is tested.
Referring to fig. 7 and 8, the damping device further includes a damping member provided on the connection block 41. The buffer assembly comprises a mounting cylinder 54 in a fixed connecting block 41, one end of the mounting cylinder 54 is closed, the other end of the mounting cylinder 54 is flush with the opening of the buffer groove 49, a mounting rod 55 penetrates through the mounting cylinder 54, a plurality of mounting convex rings 56 coaxial with the mounting cylinder 54 are integrally formed on the inner wall of the mounting cylinder 54, a butting convex ring 57 coaxial with the mounting rod 55 is integrally formed on the outer wall of the mounting rod 55, the butting convex ring 57 is a rubber ring, when the auxiliary gear 39 rotates, the inner wall of the connecting groove 40 pushes the mounting rod 55 to move towards the inside of the mounting cylinder 54, the butting convex ring 57 butts against the mounting convex ring 56, the butting convex ring 57 is deformed through extrusion, the butting convex ring 57 moves to the other side of the mounting convex ring 56 from one side of the mounting convex ring 56, when the butting convex ring 57 butts against the mounting convex ring 56, the force acting on the driving column 34 is increased, when the butting convex ring 57 is separated from the mounting convex ring 56, the force acting on the driving column 34 is instantly reduced, therefore, the magnitude of the force transmitted to the coupler is controlled, the force change of the wind wheel acting on the coupler is simulated when discontinuous wind acts on the wind wheel, and the fatigue strength of the coupler in the environment is measured.
Referring to fig. 8, two first openings 58 penetrating through the mounting convex rings 56 are axially formed in the mounting convex rings 56, the first openings 58 are two quarter circular arcs and are opposite to each other, two second openings 59 penetrating through the abutting convex rings 57 are axially formed in the abutting convex rings 57, the second openings 59 are two quarter circular arcs and are opposite to each other, so that the first openings 58 and the second openings 59 are arranged in a staggered manner, and a complete virtual circular ring is formed by projection on a horizontal plane. The mounting rod 55 is rotated to make the first gap 58 and the first gap arranged in a staggered manner, so that the mounting rod 55 can be conveniently pulled out, and the next coupler can be conveniently tested.
The implementation principle of the coupling fatigue test equipment in the embodiment of the application is as follows: the shaft coupling is fixed on a connecting flange 10 and a positioning flange 6 through bolts, a testing motor 4 drives the shaft coupling to rotate, and in the rotating process, a driving motor 16 drives an installation box 8 to slide in a sliding groove 15, so that the shaft coupling is subjected to radial shearing force and is used for measuring the fatigue strength of the shaft coupling when the shaft coupling is subjected to radial wind power; the shaft coupler is fixed on the connecting flange 10 and the positioning flange 6 through bolts and acts on the driving air cylinder 25, so that the limiting rod 27 is clamped in the limiting hole 22, the connecting flange 10 is prevented from rotating, the testing motor 4 drives the shaft coupler to rotate, and the shaft coupler is used for testing the torque which can be borne by the shaft coupler along the circumferential direction; the two ends of the coupler are fixed on the connecting flange 10 and the positioning flange 6 through bolts, so that the clamping blocks 36 are clamped in the clamping grooves 35, the rotating motor 31 drives the rotating toothed ring 30 to rotate, and the clamping blocks 36 drive the driving columns 34 to rotate, so that the mounting table 2 is driven to rotate, and the fatigue strength of one end of the coupler when the other end of the coupler is extruded in the circumferential direction under the action of large wind power is measured; the both ends of shaft coupling pass through the bolt fastening on flange 10 and flange 6, make connecting block 41 joint to spread groove 40 in, rotate motor 31 and drive supplementary ring gear 38 and rotate, connecting block 41 drives drive column 34 and rotates to drive mount table 2 and rotate, when being used for measuring the wind effect of discontinuity, fatigue strength when shaft coupling one end extrudees the other end along circumference.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A coupling fatigue test equipment which characterized in that: comprises a workbench (1), the upper surface of the workbench (1) is connected with a test motor (4), the output shaft of the test motor (4) is connected with a positioning shaft (5) through a reduction box, the positioning shaft (5) is connected with a positioning flange (6) which is coaxial with the positioning shaft (5), the upper surface of the workbench (1) is provided with an installation box (8), the installation box (8) is rotatably connected with a connecting shaft (9) coaxial with the positioning flange (6), a connecting flange (10) is fixed on the connecting shaft (9), a limiting component for preventing the connecting shaft (9) from rotating is arranged on the mounting box (8), two ends of a coupler to be tested are fixed on the positioning flange (6) and the connecting flange (10), and a driving mechanism for driving the mounting box (8) to move towards the direction vertical to the axis of the coupler is arranged on the upper surface of the workbench (1).
2. A coupling fatigue testing apparatus according to claim 1, wherein: a connecting table (7) is fixed on the upper surface of the workbench (1), a sliding groove (15) vertical to the axis of the coupler is arranged on the upper end surface of the connecting table (7) along the horizontal direction, the mounting box (8) is clamped in the sliding groove (15) in a sliding way, the driving mechanism comprises a driving motor (16) fixed on the upper end surface of the mounting table (2), a worm (17) is fixed on an output shaft of the driving motor (16), a worm wheel (19) meshed with the worm (17) is rotatably connected on the upper surface of the workbench (1), the worm wheel (19) is provided with a driving screw rod (20) which penetrates through the worm wheel (19) and is coaxial with the worm wheel (19), the driving screw rod (20) is in threaded connection with the worm wheel (19), and the driving screw rod (20) is fixed on the installation box (8) and pushes the installation box (8) to slide in the sliding groove (15).
3. A coupling fatigue testing apparatus according to claim 2, wherein: spacing subassembly is including fixing spacing post (21) of connecting axle (9) outer wall, spacing post (21) are kept away from a plurality of spacing holes (22) have been seted up to the terminal surface of flange (10), install bin (8) internal slipping is provided with spacing frame (23), be fixed with a plurality of running through on spacing frame (23 install bin (8) lateral wall and can joint extremely gag lever post (27) in spacing hole (22), install bin (8) internal fixation has drive actuating cylinder (25) that promote spacing frame (23) towards flange (10) motion.
4. A coupling fatigue testing apparatus according to claim 3, wherein: the testing device is characterized in that the upper surface of the workbench (1) is connected with an installation table (2), the upper surface of the installation table (2) is provided with a driving table (3) in a sliding manner, the testing motor (4) and the reduction gearbox are fixed on the upper surface of the driving table (3), a driving groove (11) parallel to the axis of the positioning shaft (5) is formed in the upper surface of the installation table (2), the lower surface of the driving table (3) is fixedly provided with a driving block (12) in the driving groove (11) in a sliding manner, and the driving block (12) is provided with a driving lead screw (13) which is in threaded connection with the driving block (12) and drives the driving lead screw (13) to rotate to form an installation motor (14).
5. A coupling fatigue testing apparatus according to claim 4, wherein: the upper surface of the workbench (1) is provided with a vertically arranged mounting groove (28), a rotating groove (29) is formed in the inner wall of the mounting groove (28), a rotating gear ring (30) is rotatably connected in the rotating groove (29), a rotating motor (31) is fixed in the mounting groove (28), a rotating gear (32) meshed with the rotating gear ring (30) is fixed on the rotating motor (31), an arc-shaped groove (33) coaxial with the driving gear ring is vertically arranged on the upper surface of the workbench (1), a driving column (34) positioned in the arc-shaped groove (33) is arranged on the mounting table (2), the upper surface of the rotating gear ring (30) is vertically provided with a clamping groove (35) which penetrates through the rotating gear ring (30), and a clamping block (36) which can be clamped into the clamping groove (35) is fixed on the driving column (34).
6. A coupling fatigue testing apparatus according to claim 5, wherein: the utility model discloses a novel mounting groove, including mounting groove (28), supplementary groove (37) that the mounting groove (28) inner wall seted up with rotate the coaxial auxiliary groove (37) in groove (29), supplementary groove (37) are located rotate groove (29) below, supplementary groove (37) internal rotation is connected with supplementary ring gear (38) coaxial with supplementary groove (37), be fixed with on rotating motor (31) with supplementary ring gear (38) meshing auxiliary gear (39), drive column (34) run through vertically to run through mount table (2), vertical seting up on supplementary ring gear (38) run through supplementary ring gear (38) just to spread groove (40) of joint groove (35), be fixed with on drive column (34) can joint to connecting block (41) in spread groove (40), the distance between connecting block (41) and joint block (36) is greater than rotate the distance of ring gear (30) upper surface to supplementary ring gear (38) lower surface, be provided with the butt on connecting block (41) and make supplementary ring gear (38) use the constantly changeable buffer of power on connecting block (41) in connecting groove (40) inner wall, arc wall (33) diapire seted up with arc wall (33) coaxial groove (42) of stepping down, it can be used to accomodate to step down groove (42) connecting block (41), drive post (34) run through surface and slide setting about mount table (2) are in on mount table (2), be provided with on mount table (2) and make joint piece (36) joint in joint groove (35) or make the locating component of connecting block (41) joint in connecting groove (40).
7. A coupling fatigue testing apparatus according to claim 6, wherein: the positioning assembly comprises a fixing column (43) fixed on the upper surface of the mounting table (2), a positioning column (44) penetrating through the fixing column (43) is arranged on the fixing column (43), the driving column (34) is opposite to the side wall of the fixing column (43) and is provided with a first positioning groove (45) and a second positioning groove (46), the distance between the first positioning groove (45) and the second positioning groove (46) is equal to the distance between the clamping block (36) and the connecting block (41), the first positioning groove (45) is positioned above the second positioning groove (46) and is clamped in the first positioning groove (45) when the positioning column (44) is clamped in the connecting block (41) in the connecting groove (40), a positioning rod (47) is fixed on the positioning column (44), and a positioning spring (48) which is connected with the fixing column (43) and pulls the positioning column (44) to move towards the direction close to the driving column (34) is fixed on the positioning rod (47) ).
8. A coupling fatigue testing apparatus according to claim 6, wherein: buffer slot (49) have been seted up to connecting block (41) lateral wall, buffer includes to wear to establish buffer block (50) in buffer slot (49), buffer slot (49) internal fixation promotes buffer block (50) orientation buffer spring (51) of buffer slot (49) outer motion, buffer block (50) outer wall is fixed with the butt in butt frame (52) of buffer slot (49) inner wall, buffer slot (49) inner wall is fixed with and prevents butt frame (52) break away from the fender frame (53) of buffer slot (49), buffer still is including setting up buffer unit on connecting block (41).
9. A coupling fatigue testing apparatus according to claim 8, wherein: the buffer assembly comprises a fixing mounting cylinder (54) on the connecting block (41), a mounting rod (55) penetrates through the mounting cylinder (54), the inner wall of the mounting cylinder (54) is fixed with a plurality of mounting convex rings (56) coaxial with the mounting cylinder (54), the outer wall of the mounting rod (55) is fixed with a butt convex ring (57) coaxial with the mounting rod (55), the outer diameter of the butt convex ring (57) is larger than the inner diameter of the mounting convex ring (56), and the butt convex ring (57) is a rubber ring and can move to the other side of the mounting convex ring (56) along the axial direction from one side of the mounting convex ring (56).
10. A coupling fatigue testing apparatus according to claim 9, wherein: the mounting convex ring (56) is provided with a first opening (58) penetrating through the mounting convex rings (56) along the axial direction, the abutting convex ring (57) is provided with a second opening (59) penetrating through the abutting convex ring (57) along the axial direction, and the first opening (58) and the second opening (59) form a complete virtual circular ring.
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| CN202110835563.2A CN113551905B (en) | 2021-07-23 | 2021-07-23 | Coupling fatigue test equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114354156A (en) * | 2021-12-14 | 2022-04-15 | 北京云迹科技股份有限公司 | Suspension strength test frock |
| CN117760724A (en) * | 2024-02-21 | 2024-03-26 | 太仓三本传动机械有限公司 | Coupling strength detection device and detection method |
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|---|---|
| CN113551905B (en) | 2022-05-13 |
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Address after: 314000 No.69 Tianshu Road, Jiaxing Economic and Technological Development Zone, Zhejiang Province Patentee after: Zhejiang Enbi Technology Innovation Technology Co.,Ltd. Country or region after: China Address before: 314000 No.69 Tianshu Road, Jiaxing Economic and Technological Development Zone, Zhejiang Province Patentee before: JIAXING ENBIJI ELECTRIC CO.,LTD. Country or region before: China |