CN118275107B - Test equipment for fatigue strength of carbon fiber front fork - Google Patents
Test equipment for fatigue strength of carbon fiber front fork Download PDFInfo
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- CN118275107B CN118275107B CN202410715905.0A CN202410715905A CN118275107B CN 118275107 B CN118275107 B CN 118275107B CN 202410715905 A CN202410715905 A CN 202410715905A CN 118275107 B CN118275107 B CN 118275107B
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- 238000012360 testing method Methods 0.000 title claims abstract description 45
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 19
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 19
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 230000000149 penetrating effect Effects 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims description 20
- 230000009471 action Effects 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 description 6
- 244000309464 bull Species 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000009661 fatigue test Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000003781 tooth socket Anatomy 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to the technical field of fatigue strength test equipment, in particular to test equipment for the fatigue strength of a carbon fiber front fork, which comprises a bottom plate, wherein a clamp is fixedly arranged at the top of the bottom plate, a fork to be tested is fixedly clamped in the clamp, a test rod is arranged in the fork to be tested in a penetrating manner, a straight rack is arranged at the top of the bottom plate, and a conversion assembly is arranged at the top of the bottom plate; the invention can detect the front fork of the road vehicle in two modes of the common front fork and the widened front fork, and can synchronously adjust the position and the amplitude of the test rod only by starting the telescopic rod to stretch when the two front forks are replaced and detected, thereby reducing the working content and improving the working efficiency and the accuracy of the detection result.
Description
Technical Field
The invention relates to the technical field of fatigue strength test equipment, in particular to test equipment for the fatigue strength of a carbon fiber front fork.
Background
The front fork of the highway bicycle is a front fork part installed on the highway bicycle and is usually made of carbon fiber, aluminum alloy or steel materials, the front fork is an important component for connecting a handlebar and a front wheel, the front fork bears the functions of supporting a vehicle body, damping, controlling and the like, the design of the front fork of the highway bicycle can influence the comfort, stability and controlling performance of the vehicle, and therefore, in the selection and adjustment of the highway bicycle, the type and the characteristics of the front fork are one of important factors to be considered, and two styles are generally adopted: one is a common plate front fork, the other is a widened plate front fork, the widened plate front fork is longer than the common plate front fork, and the position of the hole is higher than the common plate front fork.
The Chinese patent with publication number of CN116678758A discloses a metal material fatigue strength detection device, which comprises a telescopic cylinder driven by electromagnetic force and a clamping table, so that the device can complete the testing of various metal fatigue strengths, save the detection cost and improve the detection efficiency.
The Chinese patent with the publication number of CN115655674A discloses a vibration fatigue test device which is used for the fatigue test of an adjustable stator blade, the outer journal and the inner journal of the adjustable stator blade are respectively clamped and fixed, the real installation boundary of an engine is more approximate, the stress distribution of the blade body of the adjustable stator blade in the vibration test process is more consistent with the test running state of the whole machine, and the fatigue test result is more accurate and reliable.
The above and similar prior art all measure the fatigue strength of material through vibration, but prior art's test equipment of fork fatigue strength before the fork is treated and is adjusted through the position of adjustment anchor clamps, and anchor clamps are generally fixed on the test bench through adapting unit, when changing the fork that awaits measuring of two types and examine, need to remove anchor clamps fixedly earlier, later need to adjust the horizontal position and the height of anchor clamps simultaneously, just can fix the anchor clamps again after aligning the hole of fork that awaits measuring with the test rod, increased work content, reduced work efficiency, and the fork length that awaits measuring of two types, width are different, examine through same kind of amplitude time, can lead to the measuring effect reduction to widening version front fork, even can't produce sufficient stress level and trigger fatigue damage, thereby lead to the measuring result inaccurate even can't detect fatigue strength problem.
Therefore, the invention provides the test equipment for the fatigue strength of the carbon fiber front fork, which can conveniently change the position of the test rod according to two types of forks to be tested and change the corresponding vibration amplitude.
Disclosure of Invention
Aiming at the problems that the working efficiency is low, the detection result is inaccurate and even the fatigue strength cannot be detected due to the consistent vibration amplitude and the like caused by the fact that the position of a clamp is changed to detect two types of forks to be detected in the prior art, the designed test equipment for the fatigue strength of the carbon fiber front fork is provided.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a test equipment for carbon fiber front fork fatigue strength, includes the bottom plate, the top fixed mounting of bottom plate has anchor clamps, the inside centre gripping of anchor clamps is fixed with the fork that awaits measuring, the inside of the fork that awaits measuring has run through and has placed the test lever, the top of bottom plate is provided with the rack bar, the top of bottom plate is provided with conversion component, conversion component is including the stand, the inside of stand is run through and is installed the threaded rod through the bearing, the outside fixed mounting of threaded rod has the pinion, and pinion and rack bar meshing, the lift head is installed to one end screw thread of threaded rod, one side of lift head is provided with power unit, power unit is including the carousel, one side swing joint that is kept away from the lift head of carousel has the bull stick, the outside of bull stick is through the bearing cover vibration component, vibration component is connected with the fork that awaits measuring through the test lever;
the conversion assembly is assembled to drive the threaded rod to act with the threads of the lifting head through the movement of the upright post, so that the lifting head moves up and down and the height of the power mechanism is adjusted.
Further, two slide rails are fixedly arranged at the top of the bottom plate, a fixing seat is fixedly arranged at the top of the slide rails, an L plate is fixedly arranged at the top of the fixing seat, a detector is fixedly arranged at the top of the L plate, a telescopic rod is fixedly arranged at one side of the fixing seat, and one end of the telescopic rod is fixed at one side of the upright post.
Further, the conversion assembly further comprises a sliding seat, the sliding seat is slidably mounted at the top of the sliding rail, the sliding seat is fixedly connected with the bottom of the upright post, the top of the upright post is fixedly provided with two guide rods, the bottom of the lifting head is provided with two guide grooves, and the guide grooves are sleeved on the outer sides of the guide rods.
Further, one side of the lifting head, which is close to the fork to be detected, is provided with a fixing component, the fixing component is assembled to provide support for the power mechanism, one side of the L plate, which is close to the upright post, is provided with a supporting component, and the supporting component is assembled to adjust the position of the rotating rod through matching with the power mechanism, so that the amplitude of the vibration component is changed.
Further, fixed subassembly is including the fixed column, and fixed column fixed mounting is close to the one side of fork that awaits measuring at the lift head, and the annular has been seted up to one side that the lift head was kept away from to the fixed column, and the gear wheel has been installed through the bearing to the inboard of annular, and a plurality of awl tooth grooves have been seted up to one side that the lift head was kept away from to the gear wheel, and the awl tooth groove is circular arrangement and distributes, and the through-hole has been seted up in the inside of fixed column running through, and the outside fixed mounting of fixed column has two sets of limit pieces, every two stopper of group, and the stopper symmetry is located the both sides of through-hole.
Further, the power unit is still including the motor, and motor fixed mounting is in the one side that the fixed column was kept away from to the lifting head, the output fixed mounting of motor has the transfer line, the transfer line runs through the inside of lifting head and fixed column respectively through the bearing, the central point fixed connection of one side that the bull stick was kept away from to the other end and carousel of transfer line, the post groove has been seted up to the inside of carousel, the movable hole has been seted up to one side that the carousel is close to the bull stick, and the movable hole communicates with each other with the post groove, the double-screw bolt is installed through the bearing run through to the inside of column groove, the double-screw bolt runs through the inside of carousel through the bearing, and the other end fixed mounting of double-screw bolt has the bevel gear, the outside screw thread dress of double-screw bolt has the screwed ring, one side of screwed ring is through the one end fixed connection of connecting plate and bull stick, and connecting piece run through the inboard that is located the movable hole.
Further, the vibration assembly further comprises a guide ring, the guide ring is fixedly arranged on one side, close to the fork to be tested, of the stand column through a connecting component, a movable column is arranged on the inner side of the guide ring, one end of the movable column is hinged to a rotating plate, the other end of the rotating plate is sleeved on the outer side of the rotating rod through a bearing, and the other end of the movable column is fixedly connected with the testing rod.
Further, the supporting component comprises a square tube, the square tube is fixedly arranged on one side, close to the upright post, of the L-shaped plate, the L-shaped plate is arranged on the inner side of the square tube in a penetrating mode, a plurality of meshing teeth are arranged on the top of the L-shaped plate, the meshing teeth are not in contact with the large gear, the L-shaped plate is arranged on the inner side of the through hole in a penetrating mode, limit grooves are formed in two sides of the L-shaped plate respectively, and the limit grooves are located on the outer side of the limit block.
Further, two groups of L grooves are formed in the top of the L toothed plate, each group of L grooves is provided with two L grooves, each group of L grooves are located on two sides of the tooth, a sensor is fixedly installed on the inner wall of one side of each L groove, a spring is fixedly installed on one side of each sensor, a moving block is fixedly installed at the other end of each spring, the moving block penetrates through the inner side of each L groove, and movable teeth are fixedly installed at the top of each moving block.
The invention has the beneficial effects that:
(1) The test equipment for the fatigue strength of the carbon fiber front fork can detect the front fork of the highway in two modes of a common front fork and a widened front fork, and can synchronously adjust the position and the amplitude of the test rod only by starting the telescopic rod to stretch and retract when the two front forks are replaced and detected, thereby reducing the working content and improving the working efficiency and the accuracy of the detection result;
(2) According to the test equipment for the fatigue strength of the carbon fiber front fork, the design of the straight rack and the conversion assembly is adopted, the telescopic rod drives the stand column to move left and right, so that the stand column drives the pinion to be meshed with the straight rack to drive the threaded rod to rotate, the threaded rod drives the lifting head to move up and down by utilizing the threaded action of the lifting head, and the lifting head drives the power mechanism and the vibration assembly to move vertically up and down while moving horizontally;
(3) According to the test equipment for the fatigue strength of the carbon fiber front fork, the supporting component is matched with the power mechanism, the L-shaped toothed plate and the large gear are meshed to drive the large gear to rotate in the process that the upright post drives the lifting head to move, the large gear drives the bevel gear to rotate through the meshing of the bevel gear slot and the bevel gear, and the bevel gear drives the rotating rod to be far away from or close to the center of the turntable through the threaded action of the stud and the threaded ring, so that the vibration amplitude of the rotating rod during working can be changed.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic perspective view of two forks to be tested according to the present invention;
FIG. 2 is a schematic perspective view of the fatigue strength testing apparatus of the present invention;
FIG. 3 is a schematic view of the front cross-sectional structure of the upright of the present invention;
FIG. 4 is a schematic perspective view of a conversion assembly and a fixing assembly according to the present invention;
FIG. 5 is a schematic cross-sectional view of FIG. 4 according to the present invention;
FIG. 6 is a schematic perspective view of the stationary assembly and power mechanism of the present invention shown separated;
FIG. 7 is a schematic view of a cross-sectional structure of the stationary assembly and power mechanism of the present invention separated;
FIG. 8 is a schematic cross-sectional view of a lift head according to the present invention;
FIG. 9 is a schematic top view of the L-tooth plate of the present invention;
FIG. 10 is an enlarged schematic cross-sectional view of the L-toothed plate of the present invention;
fig. 11 is a schematic perspective view of the movable teeth of the present invention.
In the figure: 11. a bottom plate; 12. a clamp; 13. a fork to be tested; 131. widening a front fork of the plate; 132. a common plate front fork; 14. a slide rail; 15. a fixing seat; 16. an L plate; 17. a detecting machine; 18. a telescopic rod; 19. a straight rack; 2. a conversion assembly; 21. a sliding seat; 22. a column; 23. a threaded rod; 24. a pinion gear; 25. a lifting head; 26. a guide groove; 27. a guide rod; 3. a fixing assembly; 31. fixing the column; 32. a ring groove; 33. a large gear; 34. conical tooth slot; 35. a through hole; 36. a limiting block; 4. a power mechanism; 41. a motor; 42. a transmission rod; 43. a turntable; 44. a column groove; 45. a movable hole; 46. a stud; 47. bevel gears; 48. a threaded ring; 49. a rotating rod; 5. a vibration assembly; 51. a guide ring; 52. a rotating plate; 53. a movable column; 54. a test rod; 6. a support assembly; 61. square tubes; 62. an L-shaped toothed plate; 63. a limit groove; 64. an L-groove; 65. a sensor; 66. a spring; 67. a moving block; 68. and movable teeth.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Examples: as shown in fig. 2-11, the test equipment for the fatigue strength of the carbon fiber front fork comprises a bottom plate 11, wherein a clamp 12 is fixedly arranged at the top of the bottom plate 11, a fork 13 to be tested is fixedly clamped in the clamp 12, a test rod 54 is arranged in the fork 13 to be tested in a penetrating manner, a straight rack 19 is arranged at the top of the bottom plate 11, a conversion assembly 2 is arranged at the top of the bottom plate 11, two slide rails 14 are fixedly arranged at the top of the bottom plate 11, a fixing seat 15 is fixedly arranged at the top of the slide rails 14, an L plate 16 is fixedly arranged at the top of the fixing seat 15, a detector 17 is fixedly arranged at the top of the L plate 16, a telescopic rod 18 is fixedly arranged at one side of the fixing seat 15, and one end of the telescopic rod 18 is fixed at one side of a stand 22.
Specifically, the bottom plate 11 can provide firm support for the straight rack 19 and the slide rail 14, the slide rail 14 can provide guiding effect for the sliding seat 21, the L board 16 can provide firm support for the detecting machine 17, the detecting machine 17 can control the working state of the telescopic rod 18, the motor 41, the sensor 65 through the detecting machine 17, the fixing base 15 can provide firm support for the telescopic rod 18, and the telescopic rod 18 can provide driving force for the stand 22.
In this embodiment, the conversion assembly 2 includes a stand 22, a threaded rod 23 is installed inside the stand 22 through a bearing, a pinion 24 is fixedly installed on the outer side of the threaded rod 23, the pinion 24 is meshed with the straight rack 19, a lifting head 25 is installed at one end of the threaded rod 23 in a threaded manner, the conversion assembly 2 further includes a sliding seat 21, the sliding seat 21 is slidably installed at the top of the sliding rail 14, the sliding seat 21 is fixedly connected with the bottom of the stand 22, two guide rods 27 are fixedly installed at the top of the stand 22, two guide grooves 26 are formed in the bottom of the lifting head 25, the guide grooves 26 are sleeved on the outer side of the guide rods 27, and the conversion assembly 2 is assembled to drive the threaded rod 23 and the lifting head 25 to perform a threaded function through movement of the stand 22, so that the lifting head 25 moves up and down and simultaneously adjusts the height of the power mechanism 4.
Specifically, the stand 22 can provide the space that runs through for the threaded rod 23, and the top of threaded rod 23 surpasses the part of stand 22 and screw, and stand 22 can provide firm support for guide bar 27, and lifting head 25 can provide the space of seting up for guide slot 26, and when threaded rod 23 takes place the screw effect with lifting head 25, guide bar 27 and guide slot 26 cooperation can provide the guide effect for the reciprocating of lifting head 25.
In this embodiment, a fixed component 3 is disposed on one side of the lifting head 25 close to the fork 13 to be tested, the fixed component 3 is assembled to provide support for the power mechanism 4, the fixed component 3 includes a fixed column 31, and the fixed column 31 is fixedly mounted on one side of the lifting head 25 close to the fork 13 to be tested, a ring groove 32 is disposed on one side of the fixed column 31 far away from the lifting head 25, a large gear 33 is sleeved on the inner side of the ring groove 32 through a bearing, a plurality of conical tooth grooves 34 are disposed on one side of the large gear 33 far away from the lifting head 25, the conical tooth grooves 34 are distributed in a circular arrangement, through holes 35 are formed in the fixed column 31 in a penetrating manner, two groups of limiting blocks 36 are fixedly mounted on the outer side of the fixed column 31, and two limiting blocks 36 are symmetrically disposed on two sides of the through holes 35.
Specifically, the fixed column 31 can provide the space of seting up for the annular groove 32, the bearing can provide rotary support for the gear wheel 33, can freely rotate when making the gear wheel 33 receive tangential force, the gear wheel 33 can provide the space of seting up for the bevel gear groove 34, the bevel gear groove 34 is convenient to mesh with the bevel gear 47, the fixed column 31 can provide the space of seting up for the through-hole 35, the through-hole 35 can provide the activity space for the removal of L pinion rack 62, the fixed column 31 can provide firm support for limit block 36, the stopper 36 cooperates with the spacing groove 63 of L pinion rack 62 both sides, can reduce the friction of L pinion rack 62 and through-hole 35, make things convenient for L pinion rack 62 to remove in the through-hole 35 inboard.
In this embodiment, a power mechanism 4 is disposed on one side of the lifting head 25, the power mechanism 4 includes a turntable 43, a rotating rod 49 is movably connected to one side of the turntable 43 far away from the lifting head 25, the power mechanism 4 further includes a motor 41, the motor 41 is fixedly mounted on one side of the lifting head 25 far away from the fixed column 31, a driving rod 42 is fixedly mounted at the output end of the motor 41, the driving rod 42 penetrates through the lifting head 25 and the inside of the fixed column 31 respectively through bearings, the other end of the driving rod 42 is fixedly connected with the center position of one side of the turntable 43 far away from the rotating rod 49, a column groove 44 is formed in the inside of the turntable 43, a movable hole 45 is formed on one side of the turntable 43 near the rotating rod 49, the movable hole 45 is communicated with the column groove 44, a stud 46 is installed on the inner side wall of the column groove 44 through bearings, the stud 46 penetrates through the inside of the turntable 43 through bearings, and the other end of the stud 46 is fixedly provided with a bevel gear 47, the bevel gear 47 is meshed with the bevel gear groove 34, a threaded ring 48 is sleeved on the outer side of the stud 46 in a threaded manner, one side of the threaded ring 48 is fixedly connected with one end of a rotating rod 49 through a connecting plate, a connecting part penetrates through the inner side of a movable hole 45, a vibrating assembly 5 is sleeved on the outer side of the rotating rod 49 through a bearing, the vibrating assembly 5 is connected with a fork 13 to be tested through a test rod 54, the vibrating assembly 5 further comprises a guide ring 51, the guide ring 51 is fixedly arranged on one side, close to the fork 13 to be tested, of the upright 22 through the connecting part, a movable column 53 is arranged on the inner side of the guide ring 51, one end of the movable column 53 is hinged with a rotating plate 52, the other end of the rotating plate 52 is sleeved on the outer side of the rotating rod 49 through a bearing, and the other end of the movable column 53 is fixedly connected with the test rod 54.
Specifically, the motor 41 can provide the rotation driving force for the transmission rod 42, the transmission rod 42 can transmit the driving force of the motor 41 to the turntable 43, the turntable 43 can provide the opening space for the column groove 44, the position of the column groove 44 is not contacted with the center position of the turntable 43, the column groove 44 is in an eccentric state, the rotating rod 49 is always in an eccentric state, the column groove 44 can provide the movable space for the stud 46 and the threaded ring 48, when the stud 46 rotates, the threaded ring 48 can move by utilizing the threaded action of the stud 46, the threaded ring 48 drives the rotating rod 49 to move through the connecting component, the stud 46 can provide stable support for the bevel gear 47, when the bevel gear 47 receives tangential force, the bevel gear 47 can provide the rotation driving force for the stud 46, when the large gear 33 rotates, the meshing action of the bevel gear groove 34 and the bevel gear 47 is utilized to provide tangential force for the bevel gear 47, the motor 41 is a positive and negative motor, and the motor 41 has a self-locking function, when the motor 41 stops working, the output end of the motor 41 is fixed and the L-shaped toothed plate 62 are meshed, when the large gear 33 is fixed, the output end of the motor 41 can drive the rotating, and the bevel gear 43 is fixed and the bevel gear 33 can rotate, and the bevel gear 33 can rotate.
In this embodiment, a supporting component 6 is disposed on one side of the L plate 16 near the upright 22, the supporting component 6 is assembled to adjust the position of the rotating rod 49 by matching with the power mechanism 4, so as to change the amplitude of the vibration component 5, the supporting component 6 includes a square tube 61, the square tube 61 is fixedly mounted on one side of the L plate 16 near the upright 22, an L toothed plate 62 is disposed on the inner side of the square tube 61 in a penetrating manner, a plurality of engaging teeth are disposed on the top of the L toothed plate 62, the engaging teeth are not in contact with the large gear 33, the L toothed plate 62 is disposed on the inner side of the through hole 35 in a penetrating manner, limit grooves 63 are respectively disposed on two sides of the L toothed plate 62, the limit grooves 63 are disposed on the outer side of the limit block 36, two groups of L grooves 64 are disposed on the top of the L toothed plate 62, two groups of L grooves 64 are each provided, two groups of L grooves 64 are disposed on two sides of the engaging teeth, a sensor 65 is fixedly mounted on one inner wall of the L groove 64, a spring 66 is fixedly mounted on one side of the sensor 65, a moving block 67 is disposed on the other end of the spring 66, the moving block 67 penetrates the inner side of the L groove 64, and a movable tooth 68 is fixedly mounted on the top of the moving block 67.
Specifically, the L plate 16 can provide a stable support for the square tube 61, the square tube 61 can provide a limiting and guiding function for the L toothed plate 62, so that the L toothed plate 62 moves up and down along the inner side of the square tube 61, as shown in fig. 8, the large gear 33 in this state is not in contact with the L toothed plate 62, so that the rotation of the large gear 33 does not affect the L toothed plate 62, when the large gear 33 moves in a direction close to the teeth on the L toothed plate 62, the large gear 33 is in contact with the L toothed plate 62, the L toothed plate 62 can provide an opening space for the L slot 64, the L slot 64 can provide a placing space for the sensor 65, the spring 66 and the moving block 67, when the compression deformation of the spring 66 is maximum, the sensor 65 is subjected to the maximum pressure of the spring 66, at this time, the sensor 65 controls the motor 41 to stop rotating, so that the teeth 68 of the movable teeth 68 are staggered from the teeth of the large gear 33, so that the teeth of the large gear 33 can smoothly mesh with the teeth of the L toothed plate 62, and the teeth of the large gear 33 can smoothly mesh with the teeth of the teeth on the L toothed plate 62, so that the L toothed plate 62 can be prevented from moving to die the L toothed plate 62.
Working principle: when the fatigue strength needs to be detected, the common plate front fork 132 is fixed and clamped by the clamp 12, the detection rod is fixed at the position of the hole of the common plate front fork 132, referring to the state of fig. 2, then a worker controls the motor 41 to start to drive the transmission rod 42 to rotate clockwise by operating the detection machine 17, the transmission rod 42 drives the turntable 43 and the rotating rod 49 to rotate, and the rotating rod 49 drives the movable column 53 to move up and down by the hinged rotating plate 52, so that the movable column 53 drives the test rod 54 to perform fatigue detection on the common plate front fork 132;
When the stud 46 inside the turntable 43 rotates counterclockwise, the stud 46 drives the threaded ring 48 and the rotating rod 49 to move downward by the action of the threads of the threaded ring 48, when the threaded ring 48 moves to the bottom inner wall of the cylindrical groove 44, the threaded ring 48 cannot move downward, so that the interaction of the threaded ring 48 and the stud 46 limits the stud 46 and the bevel gear 47 to rotate counterclockwise, and referring to the state of fig. 6, when the motor 41 drives the turntable 43 to rotate clockwise, the turntable 43 drives the stud 46 and the bevel gear 47 to rotate together, at the moment, the large gear 33 in a relatively stationary state gives a driving force for the bevel gear 47 to rotate counterclockwise by the meshing action of the bevel tooth groove 34 and the bevel gear 47, and the bevel gear 47 cannot rotate counterclockwise continuously, so that the bevel gear 47 drives the large gear 33 to rotate clockwise by the interaction force of the bevel tooth groove 34, and the large gear 33 rotates clockwise synchronously and clockwise with the turntable 43 under the support of a bearing.
After the detection of the common plate front fork 132 is completed, the common plate front fork 132 is disassembled, then the motor 41 is started to continuously drive the turntable 43 to rotate clockwise, meanwhile, the telescopic rod 18 is started to shrink to drive the upright post 22 to move leftwards, in the process that the upright post 22 drives the threaded post and the pinion 24 to move leftwards, the pinion 24 rotates clockwise by utilizing the meshing action with the straight rack 19, the pinion 24 drives the threaded post to rotate, the threaded post drives the lifting head 25 to move upwards by utilizing the threaded action with the lifting head 25, and when the telescopic rod 18 stops shrinking, the lifting head 25 drives the test rod 54 to move to the position for widening the hole of the plate front fork 131;
In the process of moving the upright post 22, the lifting head 25 drives the fixed post 31 to move leftwards, so that the fixed post 31 drives the large gear 33 to contact with the movable tooth 68 on the right side, the large gear 33 contacts with the movable tooth 68 in a rotating state, the movable tooth 68 is stressed to move leftwards, the movable tooth 68 drives the movable block 67 to press the spring 66, the spring 66 presses the sensor 65, when the spring 66 is compressed to the maximum compression amount, the large gear 33 rotates to drive the tooth to be misplaced with the movable tooth 68, the spring 66 loses compression recovery, and drives the movable tooth 68 to move into a tooth socket of the large gear 33, meanwhile, the sensor 65 controls the motor 41 to stop rotating, so that the large gear 33 is meshed with a meshing tooth on the L toothed plate 62, the large gear 33 rotates anticlockwise under the meshing action of the L toothed plate 62, at this moment, the output end of the motor 41 is self-locked and fixed, the rotary table 43 is fixed and does not rotate, the conical tooth groove 34 drives the bevel gear 47 to rotate clockwise through the meshing action of the bevel gear 47, the bevel gear 47 drives the stud 46 to rotate, the stud 46 drives the tooth socket 49 to move away from the inner wall of the rotary table 48 to the central gear 43 through the screw thread action of the threaded ring 48, and the inner wall of the rotary table 48 is completely separated from the inner wall of the L toothed plate 44, and the rotary table 48 can be prevented from contacting the inner wall of the cylindrical gear 48, and the inner wall of the cylindrical gear 48 is completely contacted with the inner wall of the cylindrical gear 48;
After the telescopic rod 18 stops telescoping, the motor 41 is controlled by the detector 17 to release the self-locking state of the output end, so that the output end of the motor 41 can rotate freely, the widened front fork 131 is fixed on the clamp 12, the test rod 54 is fixed at the position of the hole of the widened front fork 131, the motor 41 is started to rotate the electric turntable 43 anticlockwise, the turntable 43 drives the stud 46 and the bevel gear 47 to rotate, the bevel gear 47 drives the large gear 33 to rotate anticlockwise synchronously by meshing with the bevel gear groove 34, and fatigue detection is performed on the widened front fork 131.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing examples, and that the foregoing description and description are merely illustrative of the principles of this invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a test equipment for carbon fiber front fork fatigue strength, includes bottom plate (11), the top fixed mounting of bottom plate (11) has anchor clamps (12), the inside centre gripping of anchor clamps (12) is fixed with fork (13) that awaits measuring, the inside of fork (13) that awaits measuring has run through and has placed test rod (54), its characterized in that: the automatic testing device is characterized in that a straight rack (19) is arranged at the top of the bottom plate (11), a conversion assembly (2) is arranged at the top of the bottom plate (11), the conversion assembly (2) comprises a stand column (22), a threaded rod (23) is installed inside the stand column (22) in a penetrating mode through a bearing, a pinion (24) is fixedly installed on the outer side of the threaded rod (23), the pinion (24) is meshed with the straight rack (19), a lifting head (25) is installed at one end of the threaded rod (23) in a threaded mode, a power mechanism (4) is arranged on one side of the lifting head (25), the power mechanism (4) comprises a rotary table (43), a rotary rod (49) is movably connected to one side, far away from the lifting head (25), of the rotary rod (43), a vibrating assembly (5) is sleeved on the outer side of the rotary rod (49) through a bearing, and the vibrating assembly (5) is connected with a fork (13) to be tested through a testing rod (54).
The conversion assembly (2) is assembled to drive the threaded rod (23) and the lifting head (25) to perform a threaded action through the movement of the upright post (22), so that the lifting head (25) moves up and down and the height of the power mechanism (4) is adjusted;
A fixed component (3) is arranged on one side of the lifting head (25) close to the fork (13) to be tested, the fixed component (3) is assembled to provide support for the power mechanism (4), a supporting component (6) is arranged on one side of the L plate (16) close to the upright post (22), and the supporting component (6) is assembled to adjust the position of the rotating rod (49) through matching with the power mechanism (4), so that the amplitude of the vibration component (5) is changed;
the fixing assembly (3) comprises a fixing column (31), the fixing column (31) is fixedly arranged on one side, close to the fork (13) to be detected, of the lifting head (25), a ring groove (32) is formed in one side, far away from the lifting head (25), of the fixing column (31), a large gear (33) is sleeved on the inner side of the ring groove (32) through a bearing, a plurality of conical tooth grooves (34) are formed in one side, far away from the lifting head (25), of the large gear (33), the conical tooth grooves (34) are distributed in a circular arrangement, studs (46) are arranged on the inner side of the turntable (43), a bevel gear (47) is fixedly arranged at one end of each stud (46), the bevel gear (47) is meshed with the conical tooth grooves (34), a threaded ring (48) is sleeved on the outer side of each stud (46) in a threaded mode, one side of each threaded ring (48) is fixedly connected with one end of each rotary rod (49) through a connecting part, and through holes (35) are formed in the fixing column (31) in a penetrating mode;
The power mechanism (4) further comprises a motor (41), the motor (41) is fixedly arranged on one side, far away from the fixed column (31), of the lifting head (25), a transmission rod (42) is fixedly arranged at the output end of the motor (41), the transmission rod (42) penetrates through the lifting head (25) and the inside of the fixed column (31) respectively through bearings, the other end of the transmission rod (42) is fixedly connected with the center position of one side, far away from the rotating rod (49), of the rotating disc (43), a column groove (44) is formed in the inside of the rotating disc (43), a movable hole (45) is formed in one side, close to the rotating rod (49), of the rotating disc (43), the movable hole (45) is communicated with the column groove (44), the stud (46) penetrates through bearings to be arranged on the inner side of the column groove (44), the stud (46) penetrates through the inside of the rotating disc (43), and the connecting part penetrates through the inner side of the movable hole (45).
The support assembly (6) further comprises a square tube (61), the square tube (61) is fixedly arranged on one side, close to the upright post (22), of the L-shaped plate (16), the L-shaped toothed plate (62) penetrates through the inner side of the square tube (61), a plurality of meshing teeth are arranged at the top of the L-shaped toothed plate (62), the square tube (61) can provide limiting and guiding functions for the L-shaped toothed plate (62), the L-shaped toothed plate (62) moves up and down along the inner side of the square tube (61), and the L-shaped toothed plate (62) penetrates through the inner side of the through hole (35).
2. The test apparatus for carbon fiber front fork fatigue strength of claim 1, wherein: two slide rails (14) are fixedly arranged at the top of the bottom plate (11), an L plate (16) is fixedly arranged at the top of a fixed seat (15) of the fixed seat (15) and fixedly arranged at the top of the slide rails (14), a detection machine (17) is fixedly arranged at the top of the L plate (16), a telescopic rod (18) is fixedly arranged at one side of the fixed seat (15), and one end of the telescopic rod (18) is fixed at one side of the upright post (22).
3. The test apparatus for carbon fiber front fork fatigue strength of claim 1, wherein: the conversion assembly (2) further comprises a sliding seat (21), the sliding seat (21) is slidably mounted on the top of the sliding rail (14), the sliding seat (21) is fixedly connected with the bottom of the upright post (22), two guide rods (27) are fixedly mounted on the top of the upright post (22), two guide grooves (26) are formed in the bottom of the lifting head (25), and the guide grooves (26) are sleeved on the outer sides of the guide rods (27).
4. The test apparatus for carbon fiber front fork fatigue strength of claim 1, wherein: two groups of limiting blocks (36) are fixedly arranged on the outer side of the fixed column (31), each group of limiting blocks (36) are symmetrically arranged on two sides of the through hole (35).
5. A test apparatus for carbon fiber front fork fatigue strength as recited in claim 3, wherein: the vibration assembly (5) further comprises a guide ring (51), the guide ring (51) is fixedly arranged on one side, close to the fork (13) to be tested, of the upright post (22) through a connecting component, a movable column (53) is arranged on the inner side of the guide ring (51), one end of the movable column (53) is hinged to a rotating plate (52), the other end of the rotating plate (52) is sleeved on the outer side of the rotating rod (49) through a bearing, and the other end of the movable column (53) is fixedly connected with a test rod (54).
6. The test apparatus for carbon fiber front fork fatigue strength of claim 1, wherein: limiting grooves (63) are respectively formed in two sides of the L-shaped toothed plate (62), and the limiting grooves (63) are located on the outer sides of the limiting blocks (36).
7. The test apparatus for carbon fiber front fork fatigue strength of claim 1, wherein: two groups of L grooves (64) are formed in the top of the L toothed plate (62), each group of L grooves (64) is provided with two groups of L grooves (64), each group of L grooves (64) are located on two sides of a tooth, a sensor (65) is fixedly arranged on the inner wall of one side of each L groove (64), a spring (66) is fixedly arranged on one side of each sensor (65), a moving block (67) is fixedly arranged at the other end of each spring (66), the moving block (67) penetrates through the inner side of each L groove (64), and movable teeth (68) are fixedly arranged at the top of each moving block (67).
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| CN202410715905.0A CN118275107B (en) | 2024-06-04 | 2024-06-04 | Test equipment for fatigue strength of carbon fiber front fork |
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| CN202410715905.0A CN118275107B (en) | 2024-06-04 | 2024-06-04 | Test equipment for fatigue strength of carbon fiber front fork |
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| CN220454870U (en) * | 2023-08-07 | 2024-02-06 | 盐城大丰汇安车辆配件有限公司 | Fatigue testing device for front fork of motorcycle |
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| CN102156030B (en) * | 2011-01-20 | 2012-10-10 | 航天晨光股份有限公司 | External-pressure fatigue test equipment for corrugated pipe |
| WO2018033959A1 (en) * | 2016-08-16 | 2018-02-22 | カヤバ システム マシナリー株式会社 | Vibration test machine |
| CN207908168U (en) * | 2017-12-29 | 2018-09-25 | 广州市杰控机械有限公司 | Bicycle front fork test machine |
| CN109974957B (en) * | 2019-02-27 | 2020-11-06 | 哈尔滨工业大学（威海） | Amplitude modulation frequency deviation heart vibration type lunar soil material impact rock breaking test platform and application thereof |
| CN209372435U (en) * | 2019-03-12 | 2019-09-10 | 温州弘铭仪器有限公司 | A kind of bicycle front fork vertical fatigue tester |
| CN111157204B (en) * | 2020-01-19 | 2024-08-02 | 捷安特(中国)有限公司 | Vibration fatigue testing machine for frame hook jaw and fork bone |
| WO2022094866A1 (en) * | 2020-11-05 | 2022-05-12 | 唐山圣因海洋科技有限公司 | Easy-to-move agricultural insecticidal device and method thereof |
| CN112476283A (en) * | 2020-11-23 | 2021-03-12 | 江苏巨杰机电有限公司 | Rotor detection auxiliary device for motor production |
| CN216594058U (en) * | 2021-11-25 | 2022-05-24 | 德莱恩(天津)科技有限公司 | Automatic change amplitude of regulation bobbing machine |
| CN117288609A (en) * | 2023-09-26 | 2023-12-26 | 江苏诚业化纤科技有限公司 | Anti-fatigue test equipment for chemical fiber filaments |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105181481A (en) * | 2015-10-14 | 2015-12-23 | 哈尔滨工程大学 | Three-point bending fatigue testing machine |
| CN220454870U (en) * | 2023-08-07 | 2024-02-06 | 盐城大丰汇安车辆配件有限公司 | Fatigue testing device for front fork of motorcycle |
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