CN116929689B - Fatigue testing device for cab suspension system - Google Patents
Fatigue testing device for cab suspension system Download PDFInfo
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- CN116929689B CN116929689B CN202311200321.1A CN202311200321A CN116929689B CN 116929689 B CN116929689 B CN 116929689B CN 202311200321 A CN202311200321 A CN 202311200321A CN 116929689 B CN116929689 B CN 116929689B
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- 239000000725 suspension Substances 0.000 title claims abstract description 120
- 238000009661 fatigue test Methods 0.000 title claims abstract description 54
- 230000007246 mechanism Effects 0.000 claims abstract description 68
- 238000012360 testing method Methods 0.000 claims abstract description 50
- 238000013016 damping Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 239000006096 absorbing agent Substances 0.000 description 16
- 230000035939 shock Effects 0.000 description 16
- 230000009471 action Effects 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000011090 solid board Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/06—Multidirectional test stands
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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
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/04—Suspension or damping
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/027—Specimen mounting arrangements, e.g. table head adapters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Abstract
The application relates to the technical field of cab suspension fatigue testing, and particularly provides a cab suspension system fatigue testing device which comprises a base, a plug-in mechanism, a plug-in fixing mechanism and a lifting testing mechanism. According to the fatigue testing device for the cab suspension system, which is designed by the application, the suspension is quickly fixed through the cooperation among the plugging mechanism, the plugging mechanism and the limiting arc plate in the lifting testing mechanism, so that the fatigue testing efficiency of the suspension is improved, and then the lateral testing mechanism is matched with the lifting testing mechanism, and the vertical vibration and the left-right reversing vibration of the suspension are simulated, so that the comprehensiveness of the fatigue testing of the suspension is improved, the accuracy of the fatigue performance testing of the suspension is improved through the comprehensive testing in the vertical and horizontal directions, the using effect of the suspension after the suspension is ensured, and the comfort level of a vehicle driver is ensured.
Description
Technical Field
The application relates to the technical field of cab suspension fatigue test, and particularly provides a cab suspension system fatigue test device.
Background
The main function of the cab suspension is to provide a comfortable and stable driving environment, reduce the perception of the driver to the vibration of the road and the vehicle, and reduce the transmission from the road unevenness and the vehicle motion, thereby reducing the up-down shaking and the rolling degree of the driver body, keeping the relatively stable posture of the driver, and ensuring the visual field and the working efficiency of the driver, therefore, the fatigue strength of the cab suspension is one of important indexes, the fatigue test of the whole suspension (shown in figure 7) is required before the use, the state of the suspension when the up-down vibration and the left-right reversing vibration occur is simulated, then whether four shock absorbers on the suspension are normal after the fatigue test is detected, and in order to comprehensively perform the fatigue test on the suspension, improve the accuracy of the fatigue test of the suspension, ensure the quality of the cab suspension, and the fatigue test device of the cab suspension system is required.
Disclosure of Invention
In view of the above problems, the embodiments of the present application provide a fatigue testing device for a cab suspension system, so as to solve the technical problem in the related art that fatigue testing is performed on a suspension from the aspects of up-down vibration and left-right reversing vibration of the suspension at the same time, and improve the comprehensive fatigue testing effect and the fatigue testing accuracy of the suspension.
In order to achieve the above object, the embodiment of the present application provides the following technical solutions: a fatigue testing device of a cab suspension system is used for carrying out fatigue testing on a suspension, the suspension comprises an arc-shaped frame and support frames hinged to two ends of the arc-shaped frame, a fixed base is installed at the bottom of the support frames, the fixed base is composed of an inverted L plate and a baffle plate installed on the side wall of the inverted L plate, connecting holes symmetrically arranged up and down are formed in the side wall of the baffle plate, a first shock absorber is hinged to the side wall of the support frame, a second shock absorber symmetrically arranged along the length direction of the first shock absorber is hinged to the top of the arc-shaped frame, a connecting frame is hinged between the first shock absorber and the second shock absorber, two installation frames of U-shaped structures are installed on the connecting frame through the cooperation of screw nuts, connecting holes are formed in the installation frames, and connecting nails are installed on the connecting holes.
The fatigue test device includes: the base, the T type frame is installed through the fixed plate at the top of base, install on the T type frame and carry out fixed plug-in connection mechanism to the mounting bracket, the horizontal segment bottom that the fixed plate was kept away from to the T type frame is installed and is carried out fixed plug-in connection mechanism to the end seat, plug-in connection mechanism and plug-in connection mechanism cooperation are fixed the suspension, lateral test mechanism is installed to the terminal surface that the fixed plate is connected with the T type frame, the middle part of T type frame is provided with lift test mechanism, lateral test mechanism drives the support frame of both sides and removes, lift test mechanism drives arc frame and reciprocates, the two cooperation carries out fatigue test to the suspension.
The plug-in mechanism comprises sliding blocks which are connected to the bottom of the T-shaped frame in a sliding mode and symmetrically arranged along the length direction of the sliding blocks, spring grooves are formed in the lower ends of the sliding blocks, hanging rods are connected to the spring grooves in a sliding mode, the spring grooves are connected with the hanging rods through reset springs, connecting blocks are arranged at the bottoms of the hanging rods, swinging rods are arranged on opposite faces of the two connecting blocks in a ball hinging mode, Z-shaped retaining plates are hinged to end faces of the swinging rods, which are far away from the connecting blocks, of the Z-shaped retaining plates, the Z-shaped retaining plates are abutted against the side walls of the vertical sections of the inverted L-shaped plates, plugs inserted into connecting holes are arranged on the Z-shaped retaining plates, and hook fixing groups for hanging limiting the swinging rods are arranged on the hanging rods.
The lateral testing mechanism comprises an ear plate which is arranged on a fixed plate and symmetrically arranged along the length direction of the ear plate, a sliding rod which slides along the width direction of the ear plate is connected to the ear plate, a strip inserting column is arranged on the end face of the sliding rod, which is far away from the fixed plate, a retaining plate is arranged on the end face of the Z-shaped retaining plate, which is far away from the swinging rod, a rotating plate is hinged to the end face, which is close to the strip inserting column, of the retaining plate through a torsion spring rod, strip inserting holes matched with the strip inserting column are formed in the rotating plate, and a sliding driving group for driving the two sliding rods to slide is arranged on the fixed plate.
In one possible implementation mode, the lifting test mechanism comprises a guide moving hole which is formed in the middle of the T-shaped frame and penetrates up and down, a lifting plate is connected in the guide moving hole in a sliding mode, a limiting plate is mounted on the top of the lifting plate, the limiting plate is connected with the T-shaped frame through a supporting spring, two limiting arc plates which are sequentially arranged from top to bottom are mounted on the end face of the lifting plate, which is far away from the fixing plate, the limiting arc plate on the upper side is fixedly connected with the lifting plate, the limiting arc plate on the lower side is in sliding connection with the lifting plate, a vertical section penetrates through an L-shaped hook plate which is fixedly connected with the limiting arc plate on the upper side, the L-shaped hook plate is connected with the lifting plate through a lifting spring, the lifting spring is located between the L-shaped hook plate and the lifting plate, the L-shaped hook plate is used for limiting the downward movement of the limiting arc plate on the lower side, the limiting arc plate on the lower side is far away from the lifting plate is connected with a locking rod in a threaded fit mode, a locking hole which is spliced with the locking rod is arranged on the L-shaped hook plate, and a lifting drive group is mounted in the guide moving hole, and the lifting drive group is driven up and down.
In one possible implementation mode, the inserting and fixing mechanism comprises two supplementary seats symmetrically distributed along the length direction of the T-shaped frame and connected with the lower end of the horizontal section of the T-shaped frame far away from the fixed plate, the supplementary seats are located between two sliding blocks, concave grooves are formed in the bottoms of the supplementary seats, two mounting frames are inserted into the concave grooves, the horizontal section of the supplementary seats, which is close to the sliding blocks, is connected with an inserting and fixing rod which is of an L-shaped structure in a sliding manner, the horizontal section of the inserting and fixing rod is inserted between the concave grooves and the two vertical sections of the mounting frames, so that connecting nails are supported, and sliding hanging grooves which are connected with the tops of the vertical sections of the inserting and fixing rod in a sliding manner are formed in the bottoms of the T-shaped frame.
In one possible implementation mode, the sliding driving set comprises a push plate arranged at one end of the sliding rod far away from the inserting belt column and a driving seat which is connected to the fixing plate in a sliding mode, wherein the two push plates are distributed in a splayed mode, a jacking plate arranged between the lower sides of the two push plates is arranged on the driving seat, the top of the jacking plate is of an arc-shaped structure, an inverted U-shaped frame is arranged at the top of the jacking plate through a rib plate, the bottom of a vertical section of the inverted U-shaped frame is positioned above an inclined plane of the push plate, and an antifriction roller is rotationally connected to the lower end of the vertical section of the inverted U-shaped frame.
In one possible implementation mode, the lifting driving group comprises a rotating shaft which is rotationally connected to the end face of one side of the guiding hole far away from the lifting plate, a cam is fixedly sleeved on the rotating shaft, the lifting plate is provided with arc-shaped blocks which are arranged symmetrically up and down, the cam is located between the two arc-shaped blocks, and the arc-shaped protruding faces of the two arc-shaped blocks face the cam.
In one possible implementation mode, the hooking group comprises a hanging rod connected to the end face of the Z-shaped retaining plate, which is close to the hanging rod, a hook is arranged on the hanging rod, one side of the hanging rod, which is close to the hanging rod, is hinged with a rotating rod, one end, which is far away from the hanging rod, of the rotating rod is provided with a hanging ring, the side wall of the hanging rod is provided with an ear seat, a stop rod is connected to the ear seat in a threaded fit mode, and the hook is hung on the hanging ring.
In one possible implementation, the opposite surfaces of the two limiting arc plates are both rotationally connected with uniformly arranged rotating rollers.
The above technical solutions in the embodiments of the present application have at least one of the following technical effects: 1. according to the fatigue testing device for the cab suspension system, which is designed by the application, the suspension is quickly fixed through the cooperation among the plugging mechanism, the plugging mechanism and the limiting arc plate in the lifting testing mechanism, so that the fatigue testing efficiency of the suspension is improved, and then the lateral testing mechanism is matched with the lifting testing mechanism, and the vertical vibration and the left-right reversing vibration of the suspension are simulated, so that the comprehensiveness of the fatigue testing of the suspension is improved, and the accuracy of the fatigue performance testing of the suspension is improved through the comprehensive testing in the vertical and horizontal directions.
2. The lateral testing mechanism pushes the supporting frames on two sides to move when testing the suspension, the supporting frames rotate along the hinging points of the supporting frames and the arc-shaped frames, the inserting column drives the rotating plate to rotate along the rotating connection points of the rotating plate and the blocking plate, meanwhile, the supporting frames drive the swinging rods to rotate along the spherical hinging points on two ends of the swinging rods through the Z-shaped retaining plates, and the suspenders slide along the spring grooves under the driving of the swinging rods, so that the suspension can rotate and displace during testing, and the accuracy of fatigue testing of the suspension is improved.
3. Before the suspension is fixed and limited, the hanger is hung on the hanging ring on the rotating rod to limit the swinging rod and the Z-shaped retaining plate, so that the situation that the Z-shaped retaining plate is difficult to be abutted and contacted with the end seat or the plug is difficult to be inserted into the connecting and fixing hole due to shaking of the Z-shaped retaining plate when the hanging rod drives the Z-shaped retaining plate and the plug to move is prevented.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of a first embodiment of the present application.
Fig. 2 is a schematic view of a second perspective structure of the present application.
Fig. 3 is a schematic view of a partially cut-away perspective structure of the present application.
Fig. 4 is an enlarged schematic view of a portion of fig. 3 according to the present application.
Fig. 5 is a cross-sectional view of the lift test mechanism of the present application.
Fig. 6 is a schematic perspective view of the plugging mechanism of the present application.
Fig. 7 is a schematic structural view of the suspension.
Fig. 8 is an enlarged schematic view of a portion of the application at B of fig. 3.
FIG. 9 is a schematic diagram of the structure of the inverted U-shaped frame and the grinding roll of the present application.
Reference numerals: 1. a suspension; 2. a base; 3. a plugging and fixing mechanism; 4. a plug-in mechanism; 5. a lateral testing mechanism; 6. lifting the test mechanism; 7. a T-shaped frame; 10. an arc-shaped frame; 11. a support frame; 12. an end seat; 120. an inverted L plate; 121. a baffle; 13. a connecting and fixing hole; 14. a first shock absorber; 15. a second shock absorber; 16. a connecting frame; 17. a mounting frame; 18. connecting nails; 30. a supplementary seat; 31. a concave groove; 32. a fixing rod is inserted; 33. a sliding hanging groove; 40. a sliding block; 41. a spring groove; 42. a boom; 43. a return spring; 44. a connecting and fixing block; 45. a swinging rod; 46. a Z-shaped retaining plate; 47. a plug; 48. a hooking group; 480. a hanging lock rod; 481. a hook; 482. a rotating rod; 483. hanging rings; 484. a stop lever; 50. ear plates; 51. a slide bar; 52. inserting a belt column; 53. a retaining plate; 54. a rotating plate; 55. a slip drive group; 550. a push plate; 551. a driving seat; 552. a jacking plate; 553. an inverted U-shaped frame; 554. a grinding reduction roller; 60. a guide hole; 61. a limiting plate; 62. a support spring; 63. limiting arc plates; 630. a rotating roller; 64. an L-shaped hook plate; 65. lifting the spring; 66. a lock lever; 67. a lifting driving group; 68. a lifting plate; 670. a rotation shaft; 671. a cam; 672. arc blocks.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In order that those skilled in the art will better understand the present application, the following description will be given in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 7, a fatigue testing device for a cab suspension system is used for performing fatigue testing on a suspension 1, the suspension 1 comprises an arc-shaped frame 10 and a support frame 11 hinged to two ends of the arc-shaped frame 10, a fixed base 12 is installed at the bottom of the support frame 11, the fixed base 12 is composed of an inverted-L plate 120 and a baffle 121 installed on the side wall of the vertical section of the inverted-L plate 120, a connecting hole 13 symmetrically arranged up and down is formed in the side wall of the baffle 121, a first shock absorber 14 is hinged to the side wall of the support frame 11, a second shock absorber 15 symmetrically arranged along the length direction of the top of the arc-shaped frame 10 is hinged to the top of the arc-shaped frame 10, a connecting frame 16 is hinged between the first shock absorber 14 and the second shock absorber 15, two U-shaped structure installation frames 17 are installed on the connecting frame 16 through the cooperation of screw nuts, connecting holes are formed in the installation frames 17, and connecting nails 18 are installed on the connecting holes.
Referring to fig. 1, the fatigue testing device includes: the base 2, the T type frame 7 is installed through the fixed plate at the top of base 2, install the grafting mechanism 3 that fixes mounting bracket 17 on the T type frame 7, the grafting mechanism 4 that fixes is installed to the dead seat 12 to the horizontal segment bottom that the fixed plate was kept away from to T type frame 7, grafting mechanism 4 is fixed suspension 1 with the cooperation of grafting mechanism 3, lateral test mechanism 5 is installed to the terminal surface that the fixed plate is connected with T type frame 7, the middle part of T type frame 7 is provided with lift test mechanism 6, lift test mechanism 5 drives the support frame 11 removal of both sides, lift test mechanism 6 drives arc frame 10 and reciprocates, the two cooperation carries out fatigue test to suspension 1.
Referring to fig. 2, 3, 6 and 8, the plugging mechanism 4 includes a sliding block 40 slidably connected to the bottom of the T-shaped frame 7 and symmetrically disposed along the length direction thereof, a spring slot 41 is provided at the lower end of the sliding block 40, a suspension rod 42 is slidably connected to the spring slot 41, the spring slot 41 is connected to the suspension rod 42 by a return spring 43, a connecting block 44 is mounted at the bottom of the suspension rod 42, swing rods 45 are mounted on opposite sides of the two connecting blocks 44 in a ball hinge manner, a Z-shaped retaining plate 46 is ball-hinged to an end surface of the swing rod 45 far from the connecting block 44, the Z-shaped retaining plate 46 abuts against a vertical section side wall of the inverted L plate 120 and a side wall of the baffle 121, a plug 47 inserted into the connecting hole 13 is mounted on the Z-shaped retaining plate 46, and a hook fastening group 48 for hanging and limiting the swing rod 45 is mounted on the suspension rod 42.
The mounting frame 17 on the suspension 1 is fixed through the inserting and fixing mechanism 3, so that the mounting state of the suspension 1 during operation is simulated, the suspension 1 is subjected to fatigue test, then the sliding block 40 is driven to move towards the suspension 1 through an external electric sliding block connected with the sliding block 40, the sliding block 40 drives the suspender 42, the connecting and fixing block 44 and the swinging rod 45 to move towards the suspension 1, the swinging rod 45 is supported and limited by the hooking and fixing group 48, so that the plug 47 is accurately inserted into the connecting and fixing hole 13 until the Z-shaped retaining plate 46 abuts against the side wall of the vertical section of the inverted L-shaped plate 120 and the side wall of the baffle 121, and at the moment, the plug 47 on the Z-shaped retaining plate 46 is inserted into the connecting and fixing hole 13, so that the end seat 12 at the lower end of the suspension 1 is connected and fixed, the suspension 1 is driven to perform fatigue test by the lateral test mechanism 5, and then the swinging rod 45 is not limited by the manual driving of the hooking and fixing group 48, so that the swinging rod 45 can move when the suspension 1 is tested.
Referring to fig. 6, the hooking unit 48 includes a hanging rod 480 connected to the end face of the Z-shaped retaining plate 46 near the hanger rod 42, a hook 481 is installed on the hanging rod 480, a rotating rod 482 is hinged to one side of the hanger rod 42 near the swinging rod 45, a hanging ring 483 is installed at one end of the rotating rod 482 far away from the hanger rod 42, an ear seat is installed on the side wall of the hanger rod 42, a stop lever 484 is connected to the ear seat in a threaded fit manner, and the hook 481 is hung on the hanging ring 483, so that the swinging rod 45 and the Z-shaped retaining plate 46 are limited, and the Z-shaped retaining plate 46 is prevented from shaking when the hanger rod 42 drives the Z-shaped retaining plate 46 to move with the plug 47, so that the Z-shaped retaining plate 46 is difficult to be in contact with the end seat 12 and the plug 47 is difficult to be inserted into the connecting hole 13; before testing, the hanging ring 483 is removed from the hook 481, then the rotating rod 482 is rotated, the rotating rod 482 is parallel to the hanging rod 42, and then the stop lever 484 is rotated, so that the stop lever 484 moves towards the rotating rod 482 under the action of threaded fit, and the rotating rod 482 is limited, so that the suspension 1 can be tested later.
Referring to fig. 3 and 4, the plugging and fixing mechanism 3 includes two complementary seats 30 symmetrically distributed along the length direction of the T-shaped frame 7 and connected to the lower end of the horizontal section of the T-shaped frame 7 far away from the fixing plate, the complementary seats 30 are located between two sliding blocks 40, the bottoms of the complementary seats 30 are provided with concave grooves 31, two mounting frames 17 are inserted into the concave grooves 31, the end faces of the complementary seats 30 close to the sliding blocks 40 are slidably connected with plugging and fixing rods 32 with horizontal sections inserted into the concave grooves 31 and in an L-shaped structure, the horizontal sections of the plugging and fixing rods 32 are inserted between the concave grooves 31 and the two vertical sections of the mounting frames 17 to support the connecting nails 18, and the bottoms of the T-shaped frame 7 are provided with sliding and hanging grooves 33 slidably connected with the tops of the vertical sections of the plugging and fixing rods 32.
When the suspension 1 is fixed, the suspension 1 is pushed to move upwards, the mounting frame 17 is inserted into the concave groove, the inserting and fixing rod 32 is pushed to move into the concave groove, the horizontal section of the inserting and fixing rod 32 is inserted between the concave groove 31 and the two vertical sections of the mounting frame 17, and the connecting nails 18 are supported, so that the two ends of the top of the suspension 1 are fixed, the state of the suspension 1 during use is simulated, and the fatigue test of the suspension 1 is accurately carried out.
Referring to fig. 3, the lateral testing mechanism 5 includes an ear plate 50 mounted on a fixed plate and symmetrically arranged along a length direction thereof, a sliding rod 51 sliding along a width direction thereof is connected to the ear plate 50, a belt inserting column 52 is mounted on an end surface of the sliding rod 51 far away from the fixed plate, a retaining plate 53 is mounted on an end surface of the z-shaped retaining plate 46 far away from the swinging rod 45, a rotating plate 54 is hinged to an end surface of the retaining plate 53 near the belt inserting column 52 through a torsion spring rod, belt inserting holes matched with the belt inserting column 52 are formed in the rotating plate 54, and a sliding driving group 55 driving the two sliding rods 51 to slide is mounted on the fixed plate.
The sliding rod 51 is driven to reciprocate through the sliding driving group 55, so that the supporting frames 11 on two sides of the suspension 1 are driven to reciprocate, the working state of the suspension 1 when the automobile turns left and right is simulated, the lifting testing mechanism 6 drives the arc-shaped frame 10 of the suspension 1 to reciprocate up and down, the working state of the suspension 1 when the automobile is subjected to jolt is simulated, the suspension 1 is subjected to fatigue test through the comprehensive action of the upper and lower and left and right stresses of the suspension 1, whether the first shock absorber 14 and the second shock absorber 15 on the suspension 1 are normal or not is checked after the test, and the accuracy and the comprehensiveness of the fatigue test of the suspension 1 are improved.
The lateral testing mechanism 5 promotes the support frame 11 of both sides to remove when test suspension 1, support frame 11 rotates along its articulated joint with arc frame 10, insert the band post 52 and drive rotor plate 54 and keep off the rotation tie point of solid board 53 and rotate this moment, simultaneously support frame 11 drives pendulum rod 45 through Z type butt plate 46 and rotates along the ball articulation joint at pendulum rod 45 both ends, and jib 42 slides along spring groove 41 under the drive of pendulum rod 45, thereby make support frame 11 can carry out rotary displacement when the test, suspension 1 fatigue test's degree of accuracy has been improved.
Referring to fig. 3 and 9, the sliding driving set 55 includes a push plate 550 mounted at one end of the sliding rod 51 far away from the insertion column 52, and a driving seat 551 slidably connected to the fixing plate, the two push plates 550 are arranged in a splayed shape, a lifting plate 552 disposed between the lower sides of the two push plates 550 is mounted on the driving seat 551, the top of the lifting plate 552 is in an arc structure, the top of the lifting plate 552 is provided with an inverted-u-shaped frame 553 through a rib plate, the bottom of a vertical section of the inverted-u-shaped frame 553 is located above an inclined plane of the push plate 550, and the lower end of the vertical section of the inverted-u-shaped frame 553 is rotationally connected with an antifriction roller 554.
The driving seat 551 is connected with two external electric sliding blocks which drive the driving seat 551 to move up and down, and during testing, the driving seat 551 drives the lifting plate 552 and the inverted U-shaped frame 553 to move up, and the lifting plate 552 pushes the extruding pushing plates 550 on two sides through the arc-shaped parts of the lifting plate 552 to drive the sliding rod 51 to move to two sides in the upward moving process; when the driving seat 551 moves downwards, the driving seat 551 drives the jacking plate 552 and the inverted U-shaped frame 553 to move downwards, the jacking plate 552 moves downwards to separate from the extrusion plates 550 at the two sides, when the antifriction rollers 554 at the bottoms of the vertical sections at the two sides of the inverted U-shaped frame 553 contact with the upper inclined surfaces of the extrusion plates 550, the inverted U-shaped frame 553 extrudes the extrusion plates 550 at the two sides to drive the sliding rod 51 to move towards the rib plates, and the two supporting frames 11 of the suspension 1 are driven to swing back and forth through the reciprocating sliding of the sliding rod 51, so that the fatigue test of the suspension 1 in the left and right directions is performed.
Referring to fig. 2, 3 and 5, the lifting test mechanism 6 includes a guiding hole 60 formed in the middle of the T-shaped frame 7 and penetrating up and down, a lifting plate 68 is slidably connected in the guiding hole 60, a limiting plate 61 is mounted on the top of the lifting plate 68, the limiting plate 61 is connected with the T-shaped frame 7 through a supporting spring 62, two limiting arc plates 63 sequentially disposed from top to bottom are mounted on the end surface of the lifting plate 68 away from the fixing plate, the limiting arc plate 63 on the upper side is fixedly connected with the lifting plate 68, the limiting arc plate 63 on the lower side is slidably connected with a L-shaped hook plate 64 with a vertical section penetrating through the vertical section and fixedly connected with the limiting arc plate 63 on the upper side, the lifting spring 65 is located between the L-shaped hook plate 64 and the lifting plate 68, the L-shaped hook plate 64 is located between the L-shaped hook plate 64 and the lifting plate 68, the limiting arc plate 63 on the lower side is located at the lower side and is located at the lower side, the end surface of the limiting arc plate 63 on the lower side away from the lifting plate 68 is fixedly connected with the lifting plate 68 through a threaded connection, and the lifting drive hole 67 is formed in the lifting drive mode of the lifting plate 68, and the lifting test mechanism is provided with a locking hole 60.
When the upper limiting arc plate 63 and the lower limiting arc plate 63 limit the arc frame 10 of the suspension 1 and the end seat 12 at the lower end of the suspension 1 is fixed through the plugging mechanism 4, the lifting driving group 67 works, the lifting driving group 67 drives the lifting plate 68 to move up and down, and the lifting plate 68 drives the arc frame 10 to move up and down through the limiting arc plate 63, so that the suspension 1 is subjected to fatigue test in the up-down direction.
Referring to fig. 3, two opposite surfaces of the limiting arc plate 63 are respectively and rotatably connected with uniformly arranged rotating rollers 630, and the rotating rollers 630 are used for reducing friction between the limiting arc plate 63 and the arc frame 10, so that abrasion caused by larger friction is prevented when the arc frame 10 slides along the length direction of the limiting arc plate 63 in the fatigue test process.
Referring to fig. 3, the lifting driving set 67 includes a rotating shaft 670 rotatably connected to the side end surface of the guiding hole 60 away from the lifting plate 68, a cam 671 is fixedly sleeved on the rotating shaft 670, the lifting plate 68 is provided with two arc blocks 672 symmetrically arranged up and down, the cam 671 is located between the two arc blocks 672, and the arc protruding surfaces of the two arc blocks 672 face the cam 671.
The rotating shaft 670 penetrates through the T-shaped frame 7 and then is connected with an external driving motor, the external driving motor drives the rotating shaft 670 and the cam 671 to rotate, in the rotating process of the cam 671, the protruding part of the cam contacts with the upper arc-shaped block 672 to push the upper arc-shaped block 672 to move upwards, the arc-shaped block 672 drives the lifting plate 68 to move upwards, and the lifting plate 68 drives the suspension 1 to move upwards through the limiting arc plate 63; when the protruding portion of the cam 671 contacts with the arc-shaped block 672 on the lower side, the arc-shaped block 672 on the lower side is pushed to drive the lifting plate 68 to move downwards, the lifting plate 68 drives the suspension 1 to move downwards through the limiting arc plate 63, and the up-and-down reciprocating state of the suspension 1 is simulated through the cooperation of the cam 671 and the upper and lower arc-shaped blocks 672, so that the fatigue test of the suspension 1 in the up-and-down direction is performed.
During operation, firstly, the suspension 1 is fixed, when the suspension 1 is fixed, the limiting arc plate 63 positioned at the lower side is pulled down firstly, then the arc-shaped frame 10 of the suspension 1 is placed between the upper limiting arc plate 63 and the lower limiting arc plate 63, the limiting arc plate 63 positioned at the lower side is used for carrying out preliminary support on the suspension 1, then the suspension 1 is pushed to move upwards, the mounting frame 17 on the suspension 1 is fixed through the plugging and fixing mechanism 3, so that the mounting state of the suspension 1 during operation is simulated, the suspension 1 is subjected to fatigue test, the limiting arc plate 63 positioned at the lower side is reset under the action of the reset elastic force of the lifting spring 65, and the locking rod 66 is matched with the plugging and fixing hole to be locked.
Then, the sliding block 40 is driven to move towards the suspension 1 by a first external electric sliding block connected with the sliding block 40, the sliding block 40 drives the suspender 42, the connecting block 44 and the swinging rod 45 to move towards the suspension 1, the hooking and fixing group 48 supports and limits the swinging rod 45 so that the inserting strip column 52 is accurately inserted into the inserting strip hole until the Z-shaped resisting plate 46 abuts against the side wall of the vertical section of the inverted L-shaped plate 120 and the side wall of the baffle plate 121, and the inserting strip hole on the rotating plate 54 on the baffle plate 53 is sleeved on the inserting strip column 52 at the moment, so that the end seat 12 at the lower end of the suspension 1 is connected and fixed, the lateral testing mechanism 5 drives the suspension 1 to perform fatigue test, and then the swinging rod 45 is not limited by the manual driving of the hooking and fixing group 48 so that the swinging rod 45 moves when the suspension 1 is tested later.
Finally, the sliding driving group 55 drives the sliding rods 51 to reciprocate, so that the supporting frames 11 on two sides of the suspension 1 are driven to reciprocate, the working state of the suspension 1 when the automobile turns left and right is simulated, the lifting testing mechanism 6 drives the arc-shaped frame 10 of the suspension 1 to reciprocate up and down, the working state of the suspension 1 when the automobile is subjected to jolt up and down is simulated, the suspension 1 is subjected to fatigue strength test under the comprehensive action of the upper and lower and left and right stresses of the suspension 1, whether the first shock absorber 14 and the second shock absorber 15 on the suspension 1 are normal or not is checked after the test, and whether the fatigue strength of the suspension 1 is qualified or not is further judged, the accuracy and the comprehensiveness of the fatigue test of the suspension 1 are improved, and meanwhile, the convenience of the fatigue test of the suspension 1 is also improved.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
The embodiments of the present application are all preferred embodiments of the present application, and are not limited in scope by the present application, so that all equivalent changes according to the structure, shape and principle of the present application are covered in the scope of the present application.
Claims (7)
1. A fatigue testing device of a cab suspension system is used for carrying out fatigue testing on a suspension (1), the suspension (1) comprises a supporting frame (11) and a connecting frame (16), a fixed seat (12) is installed at the bottom of the supporting frame (11), the fixed seat (12) consists of an inverted L plate (120) and a baffle (121) installed on the side wall of the vertical section of the inverted L plate (120), a damping mechanism is connected between the supporting frame (11) and the connecting frame (16), two mounting frames (17) with U-shaped structures are installed on the connecting frame (16) through the matching of screw nuts, connecting holes are formed in the mounting frames (17), and connecting nails (18) are installed on the connecting holes, and the fatigue testing device is characterized in that:
the device comprises a base (2), wherein a T-shaped frame (7) is arranged at the top of the base (2) through a fixing plate, a plugging mechanism (3) for fixing a mounting frame (17) is arranged on the T-shaped frame (7), a plugging mechanism (4) for fixing a fixing seat (12) is arranged at the bottom of a horizontal section of the T-shaped frame (7) far away from the fixing plate, the plugging mechanism (4) is matched with the plugging mechanism (3) to fix a suspension (1), a lateral test mechanism (5) is arranged on the end face of the fixing plate, which is connected with the T-shaped frame (7), a lifting test mechanism (6) is arranged in the middle of the T-shaped frame (7), the lateral test mechanism (5) drives supporting frames (11) at two sides to move, and the lifting test mechanism (6) drives an arc-shaped frame (10) to move up and down, and the lateral test mechanism (4) is matched with the lateral test mechanism to perform fatigue test on the suspension (1);
the plug-in mechanism (4) comprises sliding blocks (40) which are slidably connected to the bottom of the T-shaped frame (7) and symmetrically arranged along the length direction of the sliding blocks, spring grooves (41) are formed in the lower ends of the sliding blocks (40), hanging rods (42) are slidably connected to the spring grooves (41), the spring grooves (41) are connected with the hanging rods (42) through reset springs (43), connecting blocks (44) are arranged at the bottoms of the hanging rods (42), swinging rods (45) are hinged to opposite faces of the two connecting blocks (44) through balls, Z-shaped retaining plates (46) are arranged on the swinging rods (45) in a ball-hinge mode, far away from the end faces of the connecting blocks (44), the Z-shaped retaining plates (46) are abutted against the side walls of the vertical sections of the inverted L-shaped plates (120) and the side walls of the baffle plates (121), plugs (47) are arranged on the Z-shaped retaining plates (46), and hook-fixing groups (48) for hanging and limiting the swinging rods (45) are arranged on the hanging rods (42);
the lateral testing mechanism (5) comprises an ear plate (50) which is arranged on a fixed plate and symmetrically arranged along the length direction of the ear plate, a sliding rod (51) which slides along the width direction of the fixed plate is connected to the ear plate (50), a strip inserting column (52) is arranged on the end face, far away from the fixed plate, of the sliding rod (51), a retaining plate (53) is arranged on the end face, far away from the swinging rod (45), of a Z-shaped retaining plate (46), a rotating plate (54) is hinged to the end face, close to the strip inserting column (52), of the retaining plate (53) through a torsion spring rod, strip inserting holes matched with the strip inserting column (52) are formed in the rotating plate (54), and a sliding driving group (55) which drives the two sliding rods (51) to slide is arranged on the fixed plate.
2. The cab suspension fatigue test device according to claim 1, wherein: the lifting test mechanism (6) comprises a guide moving hole (60) which is arranged in the middle of a T-shaped frame (7) and penetrates up and down, a lifting plate (68) is connected in the guide moving hole (60) in a sliding manner, a limiting plate (61) is arranged at the top of the lifting plate (68), the limiting plate (61) is connected with the T-shaped frame (7) through a supporting spring (62), two limiting arc plates (63) which are sequentially arranged from top to bottom are arranged on the end face of the lifting plate (68) far away from the fixing plate, the limiting arc plates (63) on the upper side are fixedly connected with the lifting plate (68), the limiting arc plates (63) on the lower side are connected with the lifting plate (68) in a sliding manner, a vertical section penetrates through the L-shaped hook plate (64) which is fixedly connected with the limiting arc plates (63) on the upper side, the lifting spring (65) is arranged between the upper limiting plate (61) and the lower limiting arc plate (63), the L-shaped hook plate (64) is positioned between the L-shaped hook plate (64) and the lifting plate (68), the limiting arc plates (64) on the lower side of the lower side are positioned on the lower side far away from the locking rod (66) in a threaded connection manner, and the limiting arc plates (66) are positioned on the lower side of the lower arc plates (64) far away from the locking rod (66), a lifting driving group (67) for driving the lifting plate (68) to move up and down is arranged in the guide hole (60).
3. The cab suspension fatigue test device according to claim 1, wherein: the utility model provides a plug-in fixing mechanism (3) is including following T type frame (7) length direction symmetric distribution and connecting two supplementary seats (30) of the horizontal segment lower extreme that keep away from the fixed plate at T type frame (7), supplementary seat (30) are located between two sliding blocks (40), concave groove (31) have been seted up to the bottom of supplementary seat (30), in concave groove (31) were all inserted to two mounting brackets (17), the terminal surface sliding connection that supplementary seat (30) is close to sliding block (40) has horizontal segment to insert concave groove (31) in and plug-in fixing pole (32) for L type structure, plug-in fixing pole (32) horizontal segment inserts between concave groove (31) and two vertical sections of mounting bracket (17), in order to support connecting nail (18), sliding hanging groove (33) with plug-in fixing pole (32) vertical segment top sliding connection have been seted up to the bottom of T type frame (7).
4. The cab suspension fatigue test device according to claim 1, wherein: the sliding driving group (55) comprises a push plate (550) arranged at one end of the sliding rod (51) far away from the inserting belt column (52) and a driving seat (551) which is connected to the fixing plate in a sliding mode, wherein the two push plates (550) are distributed in a splayed mode, a lifting plate (552) positioned between the lower sides of the two push plates (550) is arranged on the driving seat (551), the top of the lifting plate (552) is of an arc-shaped structure, an inverted U-shaped frame (553) is arranged at the top of the lifting plate (552) through a rib plate, the bottom of a vertical section of the inverted U-shaped frame (553) is positioned above an inclined plane of the push plate (550), and a antifriction roller (554) is connected to the lower end of the vertical section of the inverted U-shaped frame (553) in a rotating mode.
5. A cab suspension fatigue testing device according to claim 2, wherein: the lifting driving group (67) comprises a rotating shaft (670) which is rotationally connected to the end face of one side of the guiding and moving hole (60) far away from the lifting plate (68), a cam (671) is fixedly sleeved on the rotating shaft (670), the lifting plate (68) is provided with arc-shaped blocks (672) which are arranged symmetrically up and down, the cam (671) is located between the two arc-shaped blocks (672), and the arc-shaped protruding surfaces of the two arc-shaped blocks (672) face the cam (671).
6. The cab suspension fatigue test device according to claim 1, wherein: the hook fixing group (48) comprises a hanging lock rod (480) connected to the end face of the Z-shaped retaining plate (46) close to the hanging rod (42), a hook (481) is arranged on the hanging lock rod (480), one side of the hanging rod (42) close to the swinging rod (45) is hinged with a rotating rod (482), one end, far away from the hanging rod (42), of the rotating rod (482) is provided with a hanging ring (483), the side wall of the hanging rod (42) is provided with an ear seat, a stop rod (484) is connected to the ear seat in a threaded fit mode, and the hook (481) is hung on the hanging ring (483).
7. A cab suspension fatigue testing device according to claim 2, wherein: the opposite surfaces of the two limiting arc plates (63) are respectively and rotatably connected with uniformly arranged rotating rollers (630).
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| CN202311200321.1A CN116929689B (en) | 2023-09-18 | 2023-09-18 | Fatigue testing device for cab suspension system |
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| CN202311200321.1A CN116929689B (en) | 2023-09-18 | 2023-09-18 | Fatigue testing device for cab suspension system |
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| CN214373379U (en) * | 2021-01-11 | 2021-10-08 | 广西汽车集团有限公司 | Frame bench endurance test device of non-bearing type vehicle body |
| CN113029606A (en) * | 2021-03-17 | 2021-06-25 | 一汽奔腾轿车有限公司 | Novel gantry type chassis suspension test tool |
| CN214843936U (en) * | 2021-04-13 | 2021-11-23 | 湖北宇路电子科技股份有限公司 | Fatigue testing machine for commercial vehicle body suspension system |
| CN113138088A (en) * | 2021-04-15 | 2021-07-20 | 湖北宇路电子科技股份有限公司 | Simulation testing machine for commercial vehicle body suspension system |
| CN216012747U (en) * | 2021-10-13 | 2022-03-11 | 长春孔辉汽车科技股份有限公司 | Quadruplex position automotive suspension durability test device |
| CN217687785U (en) * | 2021-12-28 | 2022-10-28 | 芜湖先力自动化设备有限公司 | Fatigue test tool for rear suspension rack of SUV (sports utility vehicle) |
| CN114838962A (en) * | 2022-04-19 | 2022-08-02 | 一汽解放汽车有限公司 | Front suspension system testing device |
| CN217878356U (en) * | 2022-08-08 | 2022-11-22 | 十堰市弘康汽配科技有限公司 | Commercial car driver's cabin suspension test vibration rack equipment |
| CN115876488A (en) * | 2022-12-28 | 2023-03-31 | 东实(武汉)实业有限公司 | Fatigue test device for automobile rear bracket assembly |
| CN219178920U (en) * | 2022-12-29 | 2023-06-13 | 武汉信测标准技术服务有限公司 | Fatigue endurance test tool for automotive suspension |
| CN219532455U (en) * | 2022-12-30 | 2023-08-15 | 宁波建新底盘系统有限公司 | Auxiliary frame stabilizer bar mounting point fatigue test frock |
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| CN116929689A (en) | 2023-10-24 |
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Denomination of invention: A fatigue testing device for cab suspension system Effective date of registration: 20231211 Granted publication date: 20231205 Pledgee: Yangzhou Branch of Zheshang Bank Co.,Ltd. Pledgor: YANGZHOU DONGSHENG AUTOMOBILE PARTS LIMITED BY SHARE Ltd. Registration number: Y2023980070690 |
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