CN115728077A

CN115728077A - Vehicle engineering shock absorber performance testing device and using method thereof

Info

Publication number: CN115728077A
Application number: CN202211358359.7A
Authority: CN
Inventors: 魏鸿儒
Original assignee: JILIN RAILWAY TECHNOLOGY COLLEGE
Current assignee: JILIN RAILWAY TECHNOLOGY COLLEGE
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-03-03

Abstract

The invention relates to the field of vehicle engineering, in particular to a shock absorber performance testing device for vehicle engineering and a using method thereof.

Description

Vehicle engineering shock absorber performance testing device and using method thereof

Technical Field

Background

The shock absorber is used for inhibiting the shock when the spring absorbs the shock and rebounds and the impact from the road surface, is widely used for automobiles, is divided from the angle of generating damping materials for accelerating the attenuation of the vibration of a frame and an automobile body so as to improve the running smoothness of the automobile, and mainly comprises two types of hydraulic pressure and inflation, and also comprises a variable-damping shock absorber.

Chinese patent (patent No. CN 201811456067.0) discloses a device for testing a shock absorber of an automobile, wherein the upper and lower ends of the shock absorber are respectively fixed, then an air cylinder is started to push a simulation road plate downwards, and a first test piece and a second test piece are pushed by hands to perform a test.

However, the existing device for testing the automobile shock absorber has the following problems in use:

1. when the shock absorber is tested, the simulated road surface is often in a single shape, but the steepness of the road surface driven by an automobile when the automobile runs on the road is not fixed, so that the single simulated road surface cannot meet the comprehensive performance test of the shock absorber;

2. because the speed is very fast when the vehicle is driven, nevertheless consume the manpower through the drive of manual promotion detection piece simulation vehicle on the road surface to the speed of promoting can't compare with driving speed, and the pressure that itself and bear when the vehicle actually goes is great, therefore under the scene of not exerting pressure to the bumper shock absorber, the performance of bumper shock absorber adds the measuring effect and easily appears the deviation.

Based on the above, a shock absorber performance testing device for vehicle engineering and a using method thereof are provided.

Disclosure of Invention

The invention aims to provide a shock absorber performance testing device for vehicle engineering and a using method thereof, so as to solve the problems in the background technology.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a vehicle engineering's bumper shock absorber capability test device, includes the bottom plate, and bottom plate upper surface middle part fixed mounting has analogue means, and the analogue means top is equipped with the unit of placing of being connected with the bottom plate, and analogue means is used for carrying out the test of road surface simulation to the bumper shock absorber with placing the unit and mutually supporting.

Preferably, the upper surface of the placing unit is provided with an adjusting device, the stabilizing unit connected with the placing unit is arranged behind the adjusting device, the stabilizing unit is convenient for surrounding and fixing the shock absorber, a pressurizing assembly connected with the placing unit is arranged above the stabilizing unit, and the pressurizing assembly is matched with the simulating device and is convenient for carrying out performance tests on the shock absorber under different pressures.

Preferably, the simulation device comprises a fixed box, the rectangular groove is formed in the upper surface of the fixed box from left to right in an equal distance mode, the rectangular groove is provided with a plurality of adjusting grooves, the adjusting grooves are formed in the front side of the fixed box and correspond to the rectangular groove respectively, dovetail grooves are formed in two sides of the fixed box, and the simulation device can be used for placing stable sliding of the plate when the performance of the shock absorber is tested through the dovetail grooves, so that the whole test effect is better.

Preferably, be equipped with the simulation board in the rectangular channel, the simulation board radian from a left side to the rectangular channel on the right side increases in proper order, and simulation board front side fixed mounting has the regulating block, and the regulating block runs through and slides in the regulating channel, and the regulating block is used for reciprocating the simulation board.

Preferably, a moving groove is formed in one side of the adjusting groove, a moving block is slidably mounted in the moving groove, a U-shaped supporting piece is fixedly mounted at the front portion of the moving block, the U-shaped supporting piece is used for fixing the adjusting block after upward sliding, the simulating plate is slid after the corresponding simulating plate is selected, then the moving block on one side of the corresponding simulating plate slides in the moving groove, the moving block is made to be close to the simulating plate needing to be supported and fixed, and the U-shaped supporting piece fixes the adjusting block due to sliding of the moving block, so that the fixing of the simulating plate is achieved.

Preferably, fixed box both sides are equipped with drive assembly, drive assembly and bottom plate fixed connection, drive assembly includes the pole setting, the pole setting sets up respectively in fixed box four corners department, the pole setting of the fixed box left and right sides is a set of respectively, the equal fixed mounting in pole setting top has the connecting block, rotate jointly between the pole setting of fixed box one side and install the screw rod, common fixed mounting has the slide bar between the pole setting of fixed box opposite side, the screw rod rear portion is equipped with the motor, motor fixed mounting all is equipped with the thread plate at the connecting block rear portion on screw rod and the slide bar.

Preferably, place the unit including placing the board, place the board both sides through forked tail piece slidable mounting in the dovetail of fixed box both sides, it slides and is equipped with the sliding barrel to place board upper surface middle part, the sliding barrel is equipped with a plurality ofly, sliding barrel upper portion articulates all around has the claw to press from both sides, be equipped with coupling spring between claw clamp and the sliding barrel, place the board both sides respectively with the screw plate fixed connection of both sides, it has the claw clamp to fix spacingly to the tooth department of bumper shock absorber lower part to articulate all around through the sliding barrel, further strengthen the bumper shock absorber and be carrying out the stability that performance detected time measuring.

Preferably, a slide cylinder one side is equipped with the curb plate, the curb plate runs through and slides in placing the board, the movable plate has been held in the palm to slide cylinder below, movable plate upper surface one side and curb plate lower part are each other for the inclined plane of laminating each other, the slide cylinder downside is equipped with the fixed plate, fixed plate middle part screw thread is rotated and is installed the transfer lever, transfer lever one end is rotated with the slide cylinder and is connected, it has the contact plate to place board lower part fixed mounting, the contact plate is used for contacting between the simulation board, setting up through the slide cylinder can make when carrying out capability test to batch bumper shock absorber, be convenient for observe each solitary bumper shock absorber, and through the mutually supporting of movable plate and curb plate, can make a plurality of bumper shock absorbers receive the motive force simultaneously.

Preferably, adjusting device includes the gear, the gear passes through the electric skateboard rotation and installs and place board upper surface middle part, the meshing of gear both sides has the rack board, fixed surface installs the mount on the rack board, the mount of both sides is close to one side fixed mounting mutually and has the grip block, the mutual staggered arrangement of grip block of both sides, through opening electric skateboard, electric skateboard drives the gear forward rotation, thereby the rack board that drives both sides during the gear corotation is close to each other and is injectd the bumper shock absorber of batch, avoid the bumper shock absorber to take place to empty when testing.

Preferably, the pressurizing assembly comprises an adjusting rod, the adjusting rod is located on the placing plate and symmetrically arranged on two sides of the upper surface of the placing plate, the adjusting rod is of a two-section telescopic structure, pin holes are formed in one side of two parts of the adjusting rod, only pins are arranged in the pin holes, the pins are used for fixing the adjusting rod after the height is adjusted, top frames are installed at the tops of the adjusting rods on two sides, the adjusting rod is convenient to adjust the height through the pin holes and the pins so as to perform performance testing on shock absorbers with different heights and different specifications.

Preferably, top frame inside fixed mounting has the urceolus, and the inside screw of urceolus rotates and installs well core rod, and well core rod outside circumference fixed mounting has the semi-ring, and the semi-ring is equipped with the multiunit, is equipped with well section of thick bamboo between well core rod and the urceolus, rotates through well core rod and can drive the semi-ring and rotate, and the semi-ring promotes the branch parting bead when rotating to be convenient for separate the bumper shock absorber of batch.

Preferably, the middle barrel and the outer barrel are both provided with a through groove, the separating strips are slidably mounted in the through grooves in the middle barrel, the two sides of each separating strip are both fixedly provided with return springs, and one ends of the return springs, far away from the separating strips, are fixedly connected with the outer side of the middle barrel.

Preferably, the stabilizing unit includes the riser, riser fixed mounting is at placing the board upper surface, riser middle part screw thread rotates installs the actuating lever, place board upper surface rear portion both sides and seted up the spout, slidable mounting has the slider in the spout, fixed surface installs the pneumatic cylinder on the slider, install the link jointly between the pneumatic cylinder middle part of both sides, the link rotates with the actuating lever front side to be connected, be equipped with even board jointly between the pneumatic cylinder of both sides, even the board is equipped with a plurality ofly, can be convenient for the stabilizing unit through setting up of pneumatic cylinder and adjust, thereby when embracing the fixing to the bumper shock absorber of different specifications, can fix its corresponding position.

Preferably, through even union coupling between the board, even board front side rotates through the pivot and installs anterior board, and equal fixed mounting has the band pulley in the pivot, through belt drive between the band pulley, and the pivot rear side of one side is equipped with the driving piece, and the driving piece has electric putter with even board fixed connection, anterior board front side bilateral symmetry fixed mounting.

Preferably, the electric putter front side fixed mounting has the heterotypic board, and anterior board lower part fixed mounting has the long slab, and the anterior fixed mounting of long slab upper surface has the holder, and the holder both sides are rotating-structure, and the connecting rod is installed respectively jointly to heterotypic board both sides and holder both sides, and the holder rear portion is equipped with the sucking disc, can make the heterotypic board hold tightly fixedly to the bumper shock absorber of different specifications through electric putter's setting, makes whole device suitability more extensive.

Preferably, another object of the present invention is to provide a method for using a shock absorber performance testing apparatus for vehicle engineering, comprising the steps of:

s1: placing a shock absorber:

sequentially sleeving round holes at the tops of the shock absorbers in batches on the outer barrel in a penetrating manner, then rotating the central rod to enable the separation strips to separate the shock absorbers from one another, then rotating the gear, limiting the shock absorbers by the clamping plate, blocking and limiting one side of the shock absorbers, and finally tightly holding the shock absorbers by the stabilizing unit to avoid sliding and toppling during testing;

s2: and (3) road surface simulation test:

selecting a corresponding simulation plate according to the steep gradient of a road surface to be simulated, sliding an adjusting block on the front side of the selected simulation plate upwards, then limiting and fixing the adjusting block by sliding a U-shaped supporting piece leftwards, starting a motor, driving a screw rod to rotate forwards and backwards repeatedly by the motor, so that a placing plate moves forwards and backwards in a reciprocating manner, and contacting a contact plate with the simulation plate when the placing plate moves forwards and backwards to test the performance of the shock absorber;

s3: recording and testing:

and shooting and recording an attenuation vibration curve by using a high-speed camera, wherein the vertical axis is the dynamic load of the wheel, the horizontal axis is time, the dynamic load of the wheel is measured during resonance, the percentages of the moving wheel load and the static wheel load and the difference between the percentages of the left wheel and the right wheel which are coaxial are calculated and displayed, and finally whether products which do not meet requirements exist in the batch of shock absorption is observed.

The invention has the beneficial effects that:

1. according to the invention, the simulation device is arranged, after the corresponding simulation board is selected, the simulation board slides upwards, the U-shaped support piece fixes the adjusting block through the sliding of the moving block, so that the simulation board is fixed, and the simulation boards with various radians can adapt to simulation tests with different requirements.

2. Through setting up the grip block, open electric skateboard, electric skateboard drives the gear forward rotation, thereby the rack board that drives both sides during the gear forward rotation is close to each other and prescribes a limit to the bumper shock absorber of batch, avoids the bumper shock absorber to take place to empty when testing.

3. According to the invention, through the arrangement of the sliding cylinder, when the performance of the batch of shock absorbers is tested, each single shock absorber is convenient to observe, and through the mutual matching of the moving plate and the side plate, the plurality of shock absorbers can receive the driving force at the same time.

4. According to the invention, the pressurizing assembly is arranged, the pin holes and the pins are arranged, so that the height of the adjusting rod can be adjusted conveniently, the performance test of the shock absorbers with different heights and different specifications can be realized conveniently, meanwhile, the gravity can be added on the pressurizing assembly according to the requirement, and the performance test of the shock absorbers under different pressures can be carried out by matching with a simulation device.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without creative efforts;

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic structural view of a stabilizing unit of the present invention;

FIG. 4 is a schematic view of the adjusting device of the present invention;

FIG. 5 is a schematic diagram of the simulation apparatus of the present invention;

FIG. 6 is a schematic diagram of a simulated board structure according to the present invention;

FIG. 7 is a schematic structural view of the part C of FIG. 5 according to the present invention;

FIG. 8 is a schematic front cross-sectional view of the top frame of the present invention;

FIG. 9 is a schematic view of the structure of the outer barrel of the present invention;

FIG. 10 is a schematic side sectional view of the outer barrel of the present invention;

FIG. 11 is a schematic view of a sliding cartridge configuration of the present invention;

FIG. 12 is a schematic view of the bottom structure of the sliding cylinder of the present invention;

FIG. 13 is an enlarged view of the portion A of FIG. 3 according to the present invention;

FIG. 14 is an enlarged view of the portion B of FIG. 3 according to the present invention;

FIG. 15 is a schematic view of the shock-absorbing sleeve of the work piece of the present invention.

The reference numbers in the figures are as follows: 1. a base plate; 2. a simulation device; 21. a fixing box; 22. a rectangular groove; 23. an adjustment groove; 24. a simulation board; 25. an adjusting block; 26. a moving groove; 27. a moving block; 28. a U-shaped support; 29. a drive assembly; 291. erecting a rod; 292. connecting blocks; 293. a screw; 294. a motor; 295. a slide bar; 296. a thread plate; 3. a placing unit; 31. placing the plate; 32. a sliding cylinder; 33. a jaw clamp; 34. a side plate; 35. moving the plate; 37. adjusting a rod; 4. an adjustment device; 41. a gear; 42. a rack plate; 43. a fixed mount; 44. a clamping plate; 5. a pressurizing assembly; 51. adjusting a rod; 52. a top frame; 53. an outer cylinder; 54. a center pole; 55. a half ring; 56. a middle cylinder; 57. a through groove; 58. a dividing strip; 6. a stabilizing unit; 61. a vertical plate; 62. a drive rod; 63. a chute; 64. a slider; 65. a hydraulic cylinder; 66. connecting plates; 67. connecting pipes; 68. a front plate; 690. an electric push rod; 691. a profiled plate; 693. a suction cup; 694. a clamping member; 695. a connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in figure 1, the shock absorber performance testing device for vehicle engineering comprises a bottom plate 1, wherein a simulation device 2 is fixedly mounted in the middle of the upper surface of the bottom plate 1, a placing unit 3 connected with the bottom plate 1 is arranged above the simulation device 2, and the simulation device 2 and the placing unit 3 are mutually matched and used for carrying out a road surface simulation test on a shock absorber.

As a technical optimization scheme of the invention, the upper surface of the placing unit 3 is provided with the adjusting device 4, the stabilizing unit 6 connected with the placing unit 3 is arranged behind the adjusting device 4, the stabilizing unit 6 is convenient for surrounding and fixing the shock absorber, the pressurizing assembly 5 connected with the placing unit 3 is arranged above the stabilizing unit 6, and the pressurizing assembly 5 is matched with the simulation device 2 to be convenient for performing performance tests on the shock absorber under different pressures.

As a technical optimization scheme of the invention, the simulation device 2 comprises a fixed box 21, a plurality of rectangular grooves 22 are arranged on the upper surface of the fixed box 21 at equal intervals from left to right, a plurality of adjusting grooves 23 are arranged on the front side of the fixed box 21, a plurality of adjusting grooves 23 are arranged on the adjusting grooves 23, the adjusting grooves 23 correspond to the rectangular grooves 22 respectively, dovetail grooves are arranged on two sides of the fixed box 21, and the placing plate 31 can slide stably when the simulation device 2 performs performance test on the shock absorber through the arrangement of the dovetail grooves, so that the whole test effect is better.

As a technical optimization scheme of the invention, the simulation plate 24 is arranged in the rectangular groove 22, the radians of the simulation plates 24 in the rectangular groove 22 from left to right are sequentially increased, the front side of the simulation plate 24 is fixedly provided with the adjusting block 25, the adjusting block 25 penetrates through and slides in the adjusting groove 23, and the adjusting block 25 is used for moving the simulation plate 24 up and down.

As shown in fig. 5, as a technical optimization scheme of the present invention, a moving groove 26 is formed on one side of the adjusting groove 23, a moving block 27 is slidably installed in the moving groove 26, a U-shaped bracket 28 is fixedly installed at the front portion of the moving block 27, the U-shaped bracket 28 is used for fixing the adjusting block 25 after sliding upwards, after selecting the corresponding simulation board 24, the simulation board 24 slides upwards, then the moving block 27 on one side of the corresponding simulation board 24 slides in the moving groove 26, so that the moving block 27 is close to the simulation board 24 to be supported and fixed, and the moving block 27 slides to fix the adjusting block 25 by the U-shaped bracket 28, thereby fixing the simulation board 24.

As a technical optimization scheme of the invention, two sides of a fixed box 21 are provided with driving components 29, the driving components 29 are fixedly connected with a bottom plate 1, the driving components 29 comprise upright posts 291, the upright posts 291 are respectively arranged at four corners of the fixed box 21, the upright posts 291 at the left side and the right side of the fixed box 21 are respectively a group, the tops of the upright posts 291 are fixedly provided with connecting blocks 292, a screw 293 is rotatably arranged between the upright posts 291 at one side of the fixed box 21, a sliding rod 295 is fixedly arranged between the upright posts 291 at the other side of the fixed box 21, the rear part of the screw 293 is provided with a motor 294, the motor 294 is fixedly arranged at the rear part of the connecting block 292, and the screw 293 and the sliding rod 295 are provided with threaded plates 296.

As a technical optimization scheme of the invention, the placing unit 3 comprises a placing plate 31, two sides of the placing plate 31 are slidably mounted in dovetail grooves on two sides of the fixing box 21 through dovetail blocks, a sliding cylinder 32 is slidably arranged in the middle of the upper surface of the placing plate 31, a plurality of sliding cylinders 32 are arranged, claw clamps 33 are hinged around the upper portion of each sliding cylinder 32, a connecting spring is arranged between each claw clamp 33 and each sliding cylinder 32, two sides of the placing plate 31 are fixedly connected with threaded plates 296 on two sides respectively, the claw clamps 33 are hinged around each sliding cylinder 32 to fix and limit teeth on the lower portion of the shock absorber, and the stability of the shock absorber during performance detection is further enhanced.

As shown in fig. 12, as a technical optimization scheme of the present invention, a side plate 34 is disposed on one side of a sliding cylinder 32, the side plate 34 penetrates and slides on a placing plate 31, a moving plate 35 is placed below the sliding cylinder 32, one side of the upper surface of the moving plate 35 and the lower portion of the side plate 34 are mutually attached to each other as inclined planes, a fixing plate is disposed on the lower side of the sliding cylinder 32, an adjusting rod 37 is rotatably mounted in the middle of the fixing plate through a screw thread, one end of the adjusting rod 37 is rotatably connected with the sliding cylinder 32, a contact plate is fixedly mounted on the lower portion of the placing plate 31 and used for contacting the simulation plates 24, when a performance test is performed on a batch of shock absorbers, observation of each individual shock absorber can be facilitated through the arrangement of the sliding cylinder 32, and multiple moving plate shock absorbers can receive driving force through the mutual matching of the

side plate

34 and 35.

As a technical optimization scheme of the invention, the adjusting device 4 comprises a gear 41, the gear 41 is rotatably mounted in the middle of the upper surface of the placing plate 31 through an electric sliding plate, rack plates 42 are meshed with two sides of the gear 41, fixed frames 43 are fixedly mounted on the upper surfaces of the rack plates 42, clamping plates 44 are fixedly mounted on the sides, close to one side, of the fixed frames 43 on two sides, the clamping plates 44 on two sides are arranged in a staggered mode, the electric sliding plate drives the gear 41 to rotate forward by opening the electric sliding plate, the rack plates 42 on two sides are driven to approach each other when the gear 41 rotates forward, so that batch shock absorbers are limited, and the shock absorbers are prevented from falling during testing.

As a technical optimization scheme of the invention, the pressurizing assembly 5 comprises adjusting rods 51, the adjusting rods 51 are symmetrically arranged on two sides of the upper surface of the placing plate 31, the adjusting rods 51 are of two sections of telescopic structures, pin holes are formed in one side of each of two parts of the adjusting rods 51, only pins are arranged in the pin holes and used for fixing the adjusting rods 51 after the height is adjusted, top frames 52 are jointly installed at the tops of the adjusting rods 51 on the two sides, and the adjusting rods 51 can be conveniently adjusted in height through the arrangement of the pin holes and the pins, so that performance tests of shock absorbers with different heights and different specifications can be conveniently realized.

As shown in fig. 9, as a technical optimization of the present invention, an outer cylinder 53 is fixedly installed inside the top frame 52, a central rod 54 is rotatably installed inside the outer cylinder 53 through threads, semi-rings 55 are fixedly installed on the outer side of the central rod 54 circumferentially, a plurality of sets of semi-rings 55 are provided, a middle cylinder 56 is provided between the central rod 54 and the outer cylinder 53, the semi-rings 55 are driven to rotate through the rotation of the central rod 54, and the semi-rings 55 push the separation bars 58 when rotating, thereby facilitating the separation of the batches of shock absorbers.

As a technical optimization scheme of the invention, through grooves 57 are respectively formed on the middle cylinder 56 and the outer cylinder 53, separating strips 58 are slidably mounted in the through grooves 57 on the middle cylinder 56, return springs are fixedly mounted on both sides of the separating strips 58, and one ends of the return springs, which are far away from the separating strips 58, are fixedly connected with the outer side of the middle cylinder 56.

As a technical optimization scheme of the invention, the stabilizing unit 6 comprises a vertical plate 61, the vertical plate 61 is fixedly arranged on the upper surface of the placing plate 31, a driving rod 62 is rotatably arranged in the middle of the vertical plate 61 through threads, sliding grooves 63 are formed in two sides of the rear part of the upper surface of the placing plate 31, sliding blocks 64 are slidably arranged in the sliding grooves 63, hydraulic cylinders 65 are fixedly arranged on the upper surfaces of the sliding blocks 64, a connecting frame is jointly arranged between the middles of the hydraulic cylinders 65 on the two sides and rotatably connected with the front side of the driving rod 62, a plurality of connecting plates 66 are jointly arranged between the hydraulic cylinders 65 on the two sides, and the stabilizing unit 6 can be conveniently adjusted through the arrangement of the hydraulic cylinders 65, so that when dampers with different specifications are fixed in an encircling manner, corresponding parts of the dampers can be fixed.

As shown in fig. 3, as a technical optimization scheme of the present invention, the connecting plates 66 are connected through a connecting pipe 67, a front plate 68 is rotatably installed on the front side of the connecting plate 66 through a rotating shaft, belt pulleys are fixedly installed on the rotating shaft, the belt pulleys are driven by a belt, a driving member is installed on the rear side of the rotating shaft on one side, the driving member is fixedly connected with the connecting plate 66, and electric push rods 690 are fixedly installed on the front side of the front plate 68 in a left-right symmetrical manner.

As a technical optimization scheme of the invention, a special-shaped plate 691 is fixedly arranged on the front side of an electric push rod 690, a long plate is fixedly arranged on the lower portion of a front plate 68, a clamping part 694 is fixedly arranged on the front portion of the upper surface of the long plate, two sides of the clamping part 694 are of a rotating structure, connecting rods 695 are respectively and commonly arranged on two sides of the special-shaped plate 691 and two sides of the clamping part 694, a sucking disc 693 is arranged on the rear portion of the clamping part 694, the special-shaped plate 691 can clamp and fix shock absorbers of different specifications through the arrangement of the electric push rod 690, and the applicability of the whole device is wider.

As shown in fig. 1 to 15, as a technical optimization solution of the present invention, another object of the present invention is to provide a method for using a shock absorber performance testing apparatus for vehicle engineering, comprising the following steps:

s1: placing a shock absorber:

sequentially sleeving round holes at the tops of the shock absorbers in batches on the outer cylinder 53, then rotating the central rod 54 to enable the separating strips 58 to separate the shock absorbers, then rotating the gear 41, limiting and stopping one side of each shock absorber by the clamping plate 44, and finally holding the shock absorbers tightly by one side through the stabilizing unit 6 to avoid sliding and toppling during testing;

s2: and (3) road surface simulation test:

selecting a corresponding simulation plate 24 according to the steep slope of the road surface to be simulated, sliding an adjusting block 25 on the front side of the selected simulation plate 24 upwards, then sliding the adjusting block 25 leftwards through a U-shaped support 28 to limit and fix the adjusting block, then starting a motor 294, driving a screw 293 to rotate forwards and backwards repeatedly by the motor 294, so that a placing plate 31 moves forwards and backwards in a reciprocating manner, and when the placing plate 31 moves forwards and backwards, a contact plate is in contact with the simulation plate 24 to test the performance of the shock absorber;

s3: recording and testing:

When the shock absorber spacing device is used, circular holes at the tops of a plurality of shock absorbers are sequentially sleeved on the outer cylinder 53 in a penetrating manner, then the central rod 54 is rotated to enable the separating strips 58 to separate the shock absorbers, then the gear 41 is rotated, and the clamping plate 44 limits one side of the shock absorber in a supporting manner;

when the performance of the mass shock absorbers is tested, the corresponding simulation plate 24 is selected according to the steep gradient of the required simulated road surface, the adjusting block 25 on the front side of the selected simulation plate 24 is slid upwards, then the adjusting block 25 is limited and fixed by sliding the U-shaped supporting piece 28 leftwards, then the motor 294 is started, the motor 294 drives the screw 293 to rotate forwards and backwards repeatedly, so that the placing plate 31 moves forwards and backwards in a reciprocating mode, the contact plate is in contact with the simulation plate 24 when the placing plate 31 moves forwards and backwards, the performance of the shock absorbers is tested, gravity is applied to the top of the adjusting rod 51 during testing, the pressure of the vehicle and the borne gravity on the shock absorbers is simulated, and the performance of the shock absorbers is more accurate during testing;

subsequently, motor 294 is turned on, and motor 294 drives screw 293 to rotate forward and backward repeatedly, so that placing plate 31 is moved back and forth in a reciprocating manner, and contact between the contact plate and dummy plate 24 is made when placing plate 31 is moved back and forth, thereby testing the performance of the damper.

The foregoing shows and describes the general principles, essential 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 embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims

1. The shock absorber performance testing device for the vehicle engineering comprises a bottom plate (1) and is characterized in that a simulation device (2) is fixedly mounted in the middle of the upper surface of the bottom plate (1), a placing unit (3) connected with the bottom plate (1) is arranged above the simulation device (2), and the simulation device (2) and the placing unit (3) are matched with each other to perform a road surface simulation test on the shock absorber;

place unit (3) upper surface and be equipped with adjusting device (4), adjusting device (4) rear is equipped with and places stable unit (6) that unit (3) are connected, and stable unit (6) are convenient for encircle the bumper shock absorber and are fixed, and stable unit (6) top is equipped with and places pressurizing assembly (5) that unit (3) are connected, and pressurizing assembly (5) cooperation analogue means (2) are convenient for carry out the capability test under the different pressure to the bumper shock absorber.

2. The shock absorber performance testing device for the vehicle engineering is characterized in that the simulation device (2) comprises a fixing box (21), rectangular grooves (22) are formed in the upper surface of the fixing box (21) at equal intervals from left to right, a plurality of rectangular grooves (22) are formed, an adjusting groove (23) is formed in the front side of the fixing box (21), a plurality of adjusting grooves (23) are formed, the adjusting grooves (23) correspond to the rectangular grooves (22) respectively, and dovetail grooves are formed in two sides of the fixing box (21);

be equipped with simulation board (24) in rectangular channel (22), simulation board (24) radian in rectangular channel (22) from a left side to the right side increases in proper order, and simulation board (24) front side fixed mounting has regulating block (25), and regulating block (25) run through and slide in regulating channel (23), and regulating block (25) are used for reciprocating simulation board (24).

3. The shock absorber performance testing device for vehicle engineering according to claim 2, wherein a moving groove (26) is formed in one side of the adjusting groove (23), a moving block (27) is slidably mounted in the moving groove (26), a U-shaped support (28) is fixedly mounted at the front part of the moving block (27), and the U-shaped support (28) is used for fixing the adjusting block (25) which slides upwards;

fixed box (21) both sides are equipped with drive assembly (29), drive assembly (29) and bottom plate (1) fixed connection, drive assembly (29) include pole setting (291), pole setting (291) set up respectively in fixed box (21) four corners department, pole setting (291) of fixed box (21) left and right sides are a set of respectively, the equal fixed mounting in pole setting (291) top has connecting block (292), rotate jointly between pole setting (291) of fixed box (21) one side and install screw rod (293), common fixed mounting has slide bar (295) between pole setting (291) of fixed box (21) opposite side, screw rod (293) rear portion is equipped with motor (294), motor (294) fixed mounting is at connecting block (292) rear portion, all be equipped with thread plate (296) on screw rod (293) and slide bar (295).

4. The shock absorber performance testing device for vehicle engineering is characterized in that the placing unit (3) comprises a placing plate (31), two sides of the placing plate (31) are slidably mounted in dovetail grooves in two sides of the fixing box (21) through dovetail blocks, a plurality of sliding cylinders (32) are slidably arranged in the middle of the upper surface of the placing plate (31), claw clamps (33) are hinged to the periphery of the upper portion of each sliding cylinder (32), and a connecting spring is arranged between each claw clamp (33) and each sliding cylinder (32);

a side plate (34) is arranged on one side of the sliding cylinder (32), the side plate (34) penetrates through and slides on the placing plate (31), a moving plate (35) is placed below the sliding cylinder (32), an inclined plane mutually attached to the lower portion of the side plate (34) is arranged on one side of the upper surface of the moving plate (35), a fixing plate is arranged on the lower side of the sliding cylinder (32), a regulating rod (37) is installed on the middle portion of the fixing plate in a threaded rotating mode, one end of the regulating rod (37) is connected with the sliding cylinder (32) in a rotating mode, a contact plate is fixedly installed on the lower portion of the placing plate (31), and the contact plate is used for contacting the simulation plates (24).

5. The shock absorber performance testing device for vehicle engineering according to claim 1, wherein the adjusting device (4) comprises a gear (41), the gear (41) is rotatably mounted in the middle of the upper surface of the placing plate (31) through an electric sliding plate, rack plates (42) are meshed with two sides of the gear (41), a fixing frame (43) is fixedly mounted on the upper surface of each rack plate (42), clamping plates (44) are fixedly mounted on the fixing frames (43) on two sides close to one side, and the clamping plates (44) on two sides are arranged in a staggered mode.

6. The shock absorber performance testing device for vehicle engineering is characterized in that the pressurizing assembly (5) comprises adjusting rods (51), the adjusting rods (51) are symmetrically arranged on two sides of the upper surface of the placing plate (31), the adjusting rods (51) are of two sections of telescopic structures, pin holes are formed in one sides of two parts of each adjusting rod (51), only pins are arranged in the pin holes and used for fixing the adjusting rods (51) after the heights are adjusted, and top frames (52) are jointly installed at the tops of the adjusting rods (51) on two sides.

7. The shock absorber performance testing device for vehicle engineering according to claim 6, wherein an outer cylinder (53) is fixedly installed inside the top frame (52), a central rod (54) is rotatably installed inside the outer cylinder (53), semi-rings (55) are fixedly installed on the outer side of the central rod (54) in the circumferential direction, a plurality of groups of semi-rings (55) are arranged, and a middle cylinder (56) is arranged between the central rod (54) and the outer cylinder (53);

the middle barrel (56) and the outer barrel (53) are both provided with a through groove (57), the through groove (57) on the middle barrel (56) is internally provided with a separation strip (58) in a sliding manner, two sides of the separation strip (58) are both fixedly provided with a return spring, and one end of the return spring, which is far away from the separation strip (58), is fixedly connected with the outer side of the middle barrel (56).

8. The shock absorber performance testing device for the vehicle engineering is characterized in that the stabilizing unit (6) comprises a vertical plate (61), the vertical plate (61) is fixedly installed on the upper surface of the placing plate (31), a driving rod (62) is installed in the vertical plate (61) in a threaded rotating mode in the middle of the vertical plate (61), sliding grooves (63) are formed in two sides of the rear portion of the upper surface of the placing plate (31), sliding blocks (64) are installed in the sliding grooves (63), hydraulic cylinders (65) are fixedly installed on the upper surfaces of the sliding blocks (64), connecting frames are installed between the middle portions of the hydraulic cylinders (65) on two sides of the placing plate and are connected with the front side of the driving rod (62) in a rotating mode, connecting plates (66) are arranged between the hydraulic cylinders (65) on two sides of the placing plate, and the connecting plates (66) are arranged in a plurality.

9. The shock absorber performance testing device for vehicle engineering as claimed in claim 8, wherein the connecting plates (66) are connected through a connecting pipe (67), a front plate (68) is rotatably mounted on the front side of the connecting plates (66) through a rotating shaft, belt wheels are fixedly mounted on the rotating shaft, the belt wheels are driven by a belt, a driving member is arranged on the rear side of the rotating shaft on one side, the driving member is fixedly connected with the connecting plates (66), and electric push rods (690) are fixedly mounted on the front side of the front plate (68) in a left-right symmetrical manner;

the electric push rod (690) is characterized in that a special-shaped plate (691) is fixedly mounted on the front side of the electric push rod (690), a long plate is fixedly mounted on the lower portion of the front plate (68), a clamping part (694) is fixedly mounted on the front portion of the upper surface of the long plate, two sides of the clamping part (694) are of a rotating structure, connecting rods (695) are mounted on two sides of the special-shaped plate (691) and two sides of the clamping part (694) respectively and jointly, and a sucker (693) is arranged on the rear portion of the clamping part (694).

10. A method for using a shock absorber performance testing device for vehicle engineering, comprising the shock absorber performance testing device for vehicle engineering of claim 9, characterized in that the method comprises the following steps:

s1: placing a shock absorber:

the circular holes at the tops of the shock absorbers in batches are sequentially sleeved on the outer cylinder (53), then the central rod (54) is rotated to enable the separation strips (58) to separate the shock absorbers, then the gear (41) is rotated, the clamping plate (44) limits, abuts and limits one side of the shock absorbers, and finally the shock absorbers are tightly held by the stabilizing unit (6) at one side, so that the shock absorbers are prevented from sliding and toppling during testing;

s2: and (3) road surface simulation test:

selecting a corresponding simulation plate (24) according to the steep gradient of a road surface to be simulated, sliding an adjusting block (25) on the front side of the selected simulation plate (24) upwards, then sliding the adjusting block (25) leftwards through a U-shaped supporting piece (28) to limit and fix, then starting a motor (294), driving a screw (293) to rotate forwards and backwards repeatedly by the motor (294), so that a placing plate (31) moves forwards and backwards in a reciprocating manner, and when the placing plate (31) moves forwards and backwards, a contact plate is in contact with the simulation plate (24) to test the performance of the shock absorber;

s3: recording and testing: