CN114813171B

CN114813171B - Vehicle body rigidity simulation experiment equipment for suspension test

Info

Publication number: CN114813171B
Application number: CN202210732428.XA
Authority: CN
Inventors: 马心建
Original assignee: Shandong Yahua Machinery Manufacturing Co ltd
Current assignee: Shandong Yahua Machinery Manufacturing Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-09-09
Anticipated expiration: 2042-06-27
Also published as: CN114813171A

Abstract

The invention relates to the field of vehicle detection, in particular to vehicle body rigidity simulation experiment equipment for a suspension test. The utility model provides a vehicle body rigidity simulation experiment equipment for suspension is experimental includes mount, transmission and adjusting device, sets up the suspension fixedly on the mount, starts drive arrangement, makes drive arrangement exert invariable power to transmission, tests the suspension. Before starting drive arrangement, adjust spacing subassembly spacing to four first transmission assembly through first adjusting part, and make spacing first transmission assembly evenly distributed at the lateral wall of fixed plate after spacing through second adjusting part, when the swivel becket rotated along the pivot, second transmission assembly received the extrusion, carry out the pre-simulation to the rigidity of automobile body, and when drive arrangement promoted the swivel becket and slided along the pivot, make second transmission assembly and first transmission assembly extruded, simulate the different rigidity of automobile body, test fixed connection in the suspension of fixed plate between the mount with this.

Description

Vehicle body rigidity simulation experiment equipment for suspension test

Technical Field

The invention relates to the field of vehicle detection, in particular to vehicle body rigidity simulation experiment equipment for a suspension test.

Background

The vehicle suspension refers to a support system between a vehicle body and a tire, and when the vehicle suspension system is developed, a structural durability test needs to be carried out on the suspension system so as to ensure the safety of a vehicle in the driving process. The test is used for simulating the load of a suspension system in a road and judging the comprehensive performance of the suspension according to the deformation degree of the suspension. Since the suspension system is installed between the vehicle body and the tires, the vehicle body has certain rigidity and weight, but the influence of the rigidity of the vehicle body on the vehicle suspension is difficult to determine in the early development stage of the project, so that the safety of the automobile in the driving process is difficult to guarantee.

Disclosure of Invention

The invention provides a vehicle body rigidity simulation experiment device for a suspension test, which aims to solve the problem that the existing vehicle body rigidity influences the suspension performance.

The invention discloses a vehicle body rigidity simulation experiment device for a suspension test, which adopts the following technical scheme:

a vehicle body rigidity simulation experiment device for a suspension test comprises a fixed frame, a transmission device and an adjusting device;

the fixed frame is used for fixing the suspension; the transmission device is fixedly connected to the suspension, a driving device is in transmission connection with the transmission device, and the driving device extrudes the suspension after transmission through the transmission device; the transmission device comprises a first transmission assembly, a second transmission assembly, a rotating ring and a fixing plate; the fixed plate is fixedly connected with the suspension; the rotating ring is arranged above the fixed plate, a rotating shaft is coaxially arranged between the rotating ring and the fixed plate, the rotating ring can be rotatably and slidably arranged on the rotating shaft, the rotating ring is in transmission connection with a driving device, and the driving device is used for driving the rotating ring to slide along the rotating shaft; the first transmission assembly is in transmission connection with the rotating ring through the limiting assembly, so that when the rotating ring slides along the rotating shaft, the first transmission assembly is extruded, and the rigidity of the vehicle body is simulated; the second transmission assembly is arranged between the rotating ring and the fixed plate, so that when the rotating ring rotates, the second transmission assembly is extruded to simulate the rigidity of the vehicle body;

the adjusting device comprises a first adjusting component and a second adjusting component, and the first adjusting component is used for adjusting the limit of the limiting component on the first transmission component; the second adjusting component is configured to be used for adjusting the position of the first transmission component on the side wall of the fixing plate, so that the first transmission component after the limiting component is limited is uniformly distributed on the outer side wall of the fixing plate.

Furthermore, the first transmission assembly comprises a first transmission unit and a second transmission unit, the first transmission unit comprises a first sliding frame and a first elastic piece, the first sliding frame is slidably arranged on the side wall of the fixed plate, one end of the first elastic piece is fixedly connected to the first sliding frame, and the other end of the first elastic piece is slidably connected to the side wall of the rotating ring through a first stop block; the two groups of first transmission units are symmetrically arranged;

the second transmission unit is at least provided with four groups, each group of second transmission unit comprises a second sliding frame and a second elastic piece, the second sliding frame is slidably arranged on the outer side wall of the fixed plate, one end of the second elastic piece is fixedly connected to the second sliding frame, the other end of the second elastic piece is provided with a second stop block, the rotating ring is arranged above the second stop block, the limiting assemblies are at least provided with four groups, each group of limiting assemblies is arranged in one-to-one correspondence with the second transmission unit, and each limiting assembly is arranged between the rotating ring and the second stop block, so that when the rotating ring slides along the rotating shaft, and when the limiting assemblies are in transmission connection with the second stop blocks, the second elastic pieces and the first elastic pieces are both deformed.

Furthermore, the second transmission assembly comprises a rotating frame and at least four third elastic pieces, the rotating frame is rotatably arranged at the lower end of the rotating shaft, and the rotating frame is rotatably connected with the fixed plate; one ends of the four third elastic pieces are uniformly connected in a rotating mode along the circumferential direction of the rotating frame, and the other ends of the four third elastic pieces are connected to the rotating ring in a rotating mode so that the third elastic pieces deform when the rotating ring rotates around the rotating shaft.

Furthermore, each limiting assembly comprises a limiting block and a first telescopic rod; the fixed plate is at least provided with four first slide ways, and the four first slide ways are arranged corresponding to the four second elastic pieces; one end of the first telescopic rod is slidably arranged in the first slideway, and the upper end of the first telescopic rod is fixedly provided with a telescopic ring so as to expand or contract the telescopic ring when the first telescopic rod slides in the first slideway; the side wall of the telescopic ring is circumferentially provided with an annular sliding groove, the second stop block is provided with a limiting groove, the limiting block is arranged in the annular sliding groove in a sliding mode, the length of the first telescopic rod is preset to be consistent with that of the second elastic piece, and the limiting block enters the limiting groove when the first telescopic rod slides in the first slide way.

Further, the first adjusting assembly comprises a rotating disc, at least four gear columns and at least four push rods; a rotating block is rotatably arranged between the rotating frame and the fixed plate, the side wall of the rotating block is at least provided with four layers of annular tooth sockets at intervals, and the length of each layer of tooth socket is reduced from bottom to top; the rotating disc is rotatably arranged on the fixed plate and is in transmission connection with the rotating block so as to enable the rotating block to synchronously rotate when the rotating disc rotates; the four gear columns are rotatably arranged on the fixed plate and are sequentially meshed with the spaced tooth grooves from bottom to top so as to rotate the gear columns when the rotating block rotates, and the four gear columns are different in rotating angle; one end fixed connection of catch bar is in first telescopic link, and the other end and the gear post transmission of catch bar are connected.

Furthermore, the second adjusting assembly comprises a fixed block, an adjusting block and a sliding block, the fixed block is fixedly connected between the fixed plate and the suspension, at least four second slide ways are arranged on the fixed block, the four second slide ways and the four first slide ways are arranged correspondingly, and rotating sleeves are arranged on the side wall of the fixed block at intervals, so that a sliding cavity is formed outside the peripheral wall of the fixed block; a blocking plate for blocking the second slide way is arranged on the side wall of the fixed block, so that the second slide way is communicated with the sliding cavity when the blocking plate is opened; the sliding block is slidably arranged in the second slide way, and the first telescopic rod penetrates through the first slide way and is fixedly connected with the sliding block; the adjusting block is slidably arranged in the second slide way and can slide along the sliding cavity, so that when the sliding block slides in the second slide way, the adjusting block slides along the second slide way, and the blocking plate gradually opens the adjusting block and gradually slides towards the sliding cavity; the side wall of the adjusting block is movably connected with the second sliding frame so that the second sliding frame can slide along the side wall of the fixed plate when the adjusting block slides along the sliding cavity.

Furthermore, preset blocks are fixedly arranged on the two first sliding frames, the preset blocks are arranged in the sliding cavity, the amount of gas between the two preset blocks is the same as the amount of gas in the second slide way, and therefore when the adjusting blocks enter the sliding cavity, the adjusting blocks and the preset blocks are uniformly distributed in the sliding cavity.

Further, an air inlet hole is formed in the inner end portion of the second slide way.

Furthermore, the rotating sleeve at least comprises four rotating rings, and the four rotating rings are fixedly connected with the first sliding frame and the second sliding frame respectively.

Furthermore, the first elastic piece is a first spring, the second elastic piece is a second spring, the third elastic piece is a third spring, the elastic coefficients of the first spring and the second spring are consistent, and the elastic coefficient of the third spring is smaller than that of the second spring.

The invention has the beneficial effects that: the invention relates to a vehicle body rigidity simulation experiment device for a suspension test, which comprises a fixed frame, a transmission device and an adjusting device, wherein the suspension is fixedly arranged on the fixed frame, and the driving device is started to apply constant force to the transmission device so as to test the suspension. Before starting drive arrangement, adjust spacing subassembly spacing to four first transmission assembly through first adjusting part, and make spacing first transmission assembly evenly distributed at the lateral wall of fixed plate after spacing through second adjusting part, when the swivel becket rotated along the pivot, second transmission assembly received the extrusion, carry out the pre-simulation to the rigidity of automobile body, and when drive arrangement promoted the swivel becket and slided along the pivot, make second transmission assembly and first transmission assembly extruded, simulate the different rigidity of automobile body, test the suspension of fixed connection between fixed plate and mount with this.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front view of a vehicle body rigidity simulation experiment device for a suspension test according to an embodiment of the invention;

FIG. 2 is a perspective view of the transmission of FIG. 1;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a schematic structural view of the fixing block, the rotating shaft and the second transmission assembly in FIG. 2;

FIG. 5 is a schematic structural view of the rotating sleeve, the fixing plate and the first adjusting assembly shown in FIG. 2;

FIG. 6 is a schematic structural view of the fixing plate shown in FIG. 5 with the fixing plate hidden;

FIG. 7 is a schematic structural view of one of the first transmission assembly, the fixing plate and the limiting assembly in FIG. 2;

FIG. 8 is an initial state diagram of the second transmission assembly of FIG. 2;

FIG. 9 is a non-initial state diagram of the second transmission assembly of FIG. 2;

FIG. 10 is a view showing only one second elastic member of FIG. 2 participating in a simulation of the rigidity of the vehicle body;

FIG. 11 is a view showing the state in FIG. 2 where two second elastic members participate in the simulation of the rigidity of the vehicle body;

FIG. 12 is a view showing three second elastic members of FIG. 2 participating in a simulation of the rigidity of the vehicle body;

fig. 13 is a view showing a state in which four second elastic members of fig. 2 participate in a vehicle body rigidity simulation.

In the figure: 110. a base plate; 120. a top plate; 130. a suspension; 140. a hydraulic push rod; 210. a fixing plate; 211. a first slideway; 220. a rotating ring; 230. a rotating shaft; 240. a fixed block; 241. a second slideway; 242. a plugging plate; 243. an air inlet; 250. rotating the sleeve; 251. rotating the ring; 260. a sliding cavity; 310. a first carriage; 311. presetting a block; 320. a first spring; 330. a first stopper; 340. a second carriage; 350. a second spring; 360. a second stopper; 361. a limiting groove; 370. a rotating frame; 380. a third spring; 381. guiding the telescopic rod; 410. rotating the disc; 420. a gear post; 430. a push rod; 440. rotating the block; 441. a tooth socket; 450. connecting blocks; 460. a fourth spring; 510. a limiting block; 530. a first telescopic rod; 540. a telescopic ring; 541. an annular chute; 620. an adjusting block; 630. and a slider.

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.

The numbering of the components themselves, such as "first", "second", etc., is used herein only to distinguish between the objects depicted and not to have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

An embodiment of a vehicle body rigidity simulation experiment device for a suspension test, as shown in fig. 1 to 13, includes a fixed frame, a transmission device and an adjusting device.

The fixing frame is used for fixing the suspension 130, the fixing frame is provided with a bottom plate 110 and a top plate 120, and the suspension 130 to be tested is fixedly arranged on the bottom plate 110 and used for simulating the suspension 130 to be mounted on the wheel.

The transmission device is fixedly connected to the suspension 130, and a driving device is in transmission connection with the transmission device, and the driving device extrudes the suspension 130 after transmission through the transmission device, specifically, the driving device is a hydraulic push rod 140, and one end of the hydraulic push rod 140 is fixedly connected to the top plate 120 of the fixed frame, so that when the hydraulic push rod 140 is started, the power output shaft of the hydraulic push rod 140 extrudes the suspension 130 with a constant extrusion force. Further, the transmission device includes a first transmission assembly, a second transmission assembly, a rotating ring 220 and a fixing plate 210, the fixing plate 210 is an annular structure and is fixedly connected to the upper end of the suspension 130, and a fixing block 240 is fixedly connected between the fixing plate 210 and the suspension 130. The rotating ring 220 is disposed above the fixed plate 210, a rotating shaft 230 is coaxially disposed between the rotating ring 220 and the fixed plate 210, the rotating ring 220 is rotatably and slidably disposed on the rotating shaft 230, the rotating ring 220 is in transmission connection with the hydraulic push rod 140, and the hydraulic push rod 140 is used for driving the rotating ring 220 to slide along the rotating shaft 230, so as to perform a squeezing test on the suspension 130. The first transmission assembly is in transmission connection with the rotating ring 220 through the limiting assembly, so that when the rotating ring 220 slides along the rotating shaft 230, the first transmission assembly is extruded, and the rigidity of the automobile body is simulated. The second transmission assembly is disposed between the rotating ring 220 and the fixing plate 210, so that when the rotating ring 220 rotates, the second transmission assembly is squeezed to simulate the rigidity of the vehicle body, thereby determining the influence on the suspension 130 when the vehicle body has different rigidities.

In this embodiment, the first transmission assembly includes a first transmission unit and a second transmission unit, the first transmission unit includes a first sliding frame 310 and a first elastic member, the first sliding frame 310 is slidably disposed on the sidewall of the fixed plate 210, one end of the first elastic member is fixedly connected to the first sliding frame 310, and the other end of the first elastic member is slidably connected to the sidewall of the rotating ring 220 through a first stopper 330, so that the first elastic member is compressed when the rotating ring 220 slides along the rotating shaft 230. The first transmission units are arranged in two groups, the two groups of first transmission units are symmetrically arranged, and specifically, the first elastic piece is a first spring 320. Further, four sets of second transmission units are provided, each set of second transmission unit includes a second sliding frame 340 and a second elastic member, the second sliding frame 340 is slidably disposed on the outer side wall of the fixing plate 210, one end of the second elastic member is fixedly connected to the second sliding frame 340, and the other end of the second elastic member is provided with a second stopper 360, specifically, the second elastic member is a second spring 350, and the elastic coefficient of the second spring 350 is identical to the elastic coefficient of the first spring 320. The rotating ring 220 is arranged above the second stopper 360, and the limiting assembly is arranged between the rotating ring 220 and the second stopper 360, so that when the rotating ring 220 slides along the rotating shaft 230 and the limiting assembly is in transmission connection with the second stopper 360, the second spring 350 and the first spring 320 are both deformed, and the rigidity of the car body is simulated.

In this embodiment, the second transmission assembly includes four third elastic members and a rotating frame 370, the rotating frame 370 is rotatably disposed at the lower end of the rotating shaft 230, and the rotating frame 370 is rotatably connected to the fixing plate 210. One end of each of the four third elastic members is uniformly and rotatably connected along the circumferential direction of the rotating frame 370, and the other end of each of the four third elastic members is rotatably connected to the rotating ring 220, so that the third elastic member is deformed when the rotating ring 220 rotates around the rotating shaft 230, specifically, the third elastic member is a third spring 380, a guiding telescopic rod 381 is arranged in the third spring 380, two first hinged blocks are hinged between one end of the guiding telescopic rod 381 and the rotating ring 220, and the two first hinged blocks are hinged with each other, so that any angle can be deflected between one end of the guiding telescopic rod 381 and the rotating ring 220. Two second hinged blocks are rotatably arranged between the other end of the telescopic guide rod 381 and the rotating frame 370, and the two second hinged blocks are hinged to each other, so that the telescopic guide rod 381 and the rotating frame 370 can be deflected at any angle. The spring constant of the third spring 380 is less than the spring constant of the second spring 350. The third spring 380 is compressed as the rotary ring 220 rotates about the rotary shaft 230, and the rigidity of the vehicle body is simulated. And the first, second, and

third springs

320, 350, and 380 are made to simulate the stiffness of the vehicle body as the rotating ring 220 slides along the shaft.

In this embodiment, the limiting assembly includes a limiting block 510 and a first telescopic rod 530, the fixing plate 210 is provided with four first sliding ways 211, and the four first sliding ways 211 are disposed corresponding to the four second springs 350. One end of the first telescopic rod 530 is slidably disposed in the first sliding channel 211, and an extension ring 540 is fixedly disposed at the upper end of the first telescopic rod 530, so that when the first telescopic rod 530 slides in the first sliding channel 211, the extension ring 540 expands or contracts. The side wall of the telescopic ring 540 is circumferentially provided with an annular sliding groove 541, the second stopper 360 is provided with a limiting groove 361, the limiting block 510 is slidably disposed in the annular sliding groove 541, and the length of the first telescopic rod 530 is preset to be consistent with the length of the second spring 350, so that when the first telescopic rod 530 slides in the first sliding channel 211, the limiting block 510 enters the limiting groove 361, and further when the rotating ring 220 rotates along the rotating shaft 230, the second spring 350 and the first spring 320 are synchronously compressed.

The adjusting device comprises a first adjusting component and a second adjusting component, and the first adjusting component is used for adjusting the limit of the limit component on the first transmission component. Specifically, the first adjusting assembly comprises a rotating disc 410, four gear columns 420 and four push rods 430, a rotating block 440 is rotatably arranged between the rotating frame 370 and the fixing plate 210, four annular tooth grooves 441 are arranged on the side wall of the rotating block 440, the lengths of the four annular tooth grooves 441 are different, the four annular tooth grooves 441 with different lengths are sequentially and fixedly arranged along the side wall of the rotating block 440 from bottom to top according to the length of the annular tooth grooves 441, and a certain interval is formed between every two adjacent annular tooth grooves 441, so that the annular tooth grooves 441 are in a step shape on the side wall of the rotating block 440. The rotating plate 410 is rotatably disposed on the fixed plate 210, the rotating plate 410 is a toothed plate, the side wall of the lower end of the rotating block 440 is provided with ring teeth, and the rotating plate 410 is engaged with the toothed ring of the rotating block 440, so that the rotating block 440 rotates synchronously when the rotating plate 410 rotates. The number of the gear columns 420 is four, the four gear columns 420 are rotatably arranged on the fixed plate 210, one gear column 420 is in meshing transmission with one annular tooth groove 441, when the rotating block 440 is driven by the rotating disc 410 to rotate, the annular tooth grooves 441 on the side wall of the rotating block 440 sequentially drive the gear columns 420 to rotate, and the rotating amount of the gear columns 420 is different due to the fact that the lengths of the four annular tooth grooves 441 are different. A slidable connecting block 450 is arranged in each first slide way 211, and a fourth spring 460 is arranged at the lower end of each connecting block 450 and the lower end of each first telescopic rod 530. The push rods 430 are four, one end of each push rod 430 is in meshed transmission connection with the gear column 420, the other end of each push rod 430 is fixedly connected with each connecting block 450, the fourth springs 460 are all compressed along with the rotation of the gear column 420, the compressed amount of each fourth spring 460 is different, and the sliding distance of the first telescopic rod 530 in the first slide rail 211 is different.

In this embodiment, the telescopic ring 540 includes four fixing portions and four sliding portions, the four fixing portions are hollow arc-shaped sections inside, the four sliding portions are arc-shaped section-shaped structures, the four fixing portions sequentially pass through the four sliding portion sliding connections from head to tail, and the four fixing portions are respectively fixedly connected with the first telescopic rod 530, the four fixing portions and the four sliding portion outer side walls are all provided with arc-shaped sliding grooves, so that the outer side of the telescopic ring 540 has an annular sliding groove 541.

In this embodiment, the second adjusting assembly is configured to adjust the position of the first transmission assembly on the side wall of the fixing plate 210, so that the first transmission assembly after the position limiting assembly is limited is uniformly distributed on the outer side wall of the fixing plate 210. Specifically, the second adjusting assembly includes a fixed block 240, an adjusting block 620 and a sliding block 630, the fixed block 240 is fixedly connected between the fixed plate 210 and the suspension 130, four second sliding ways 241 are provided on the fixed block 240, the four second sliding ways 241 are arranged corresponding to the four first sliding ways 211, and rotating sleeves 250 are provided at intervals on the side wall of the fixed block 240, so that a sliding cavity 260 is provided outside the peripheral wall of the fixed block 240. The side wall of the fixed block 240 is provided with a blocking plate 242 for blocking the second slide way 241, so that the second slide way 241 is communicated with the sliding cavity 260 when the blocking plate 242 is opened. The sliding block 630 is slidably disposed in the second sliding channel 241, and the connecting block 450 penetrates through the first sliding channel 211 and is fixedly connected with the sliding block 630, so that when the connecting block 450 slides in the first sliding channel 211, the sliding block 630 slides in the second sliding channel 241. A sealing plate is disposed on the first slide channel 211 to prevent the gas in the second slide channel 241 from being discharged through the first slide channel 211. The adjusting block 620 is slidably disposed in the second sliding channel 241 and can slide along the sliding cavity 260, so that when the sliding block 630 slides in the second sliding channel 241, the adjusting block 620 slides along the second sliding channel 241, and gradually opens the blocking plate 242, the adjusting block 620 gradually slides towards the sliding cavity 260, and the side wall of the adjusting block 620 is movably connected to the second sliding frame 340, so that when the adjusting block 620 slides along the sliding cavity 260, the second sliding frame 340 slides along the side wall of the fixing plate 210.

In this embodiment, the two first sliding frames 310 are fixedly provided with the preset blocks 311, the preset blocks 311 are disposed in the sliding cavity 260, the amount of gas between the two preset blocks 311 is the same as the amount of gas in the second sliding channel 241, and the inner end of the second sliding channel 241 is provided with the gas inlet 243, so that when the adjusting block 620 enters the sliding cavity 260, the adjusting block 620 and the preset blocks 311 are uniformly distributed in the sliding cavity 260, and further the second sliding frame 340 and the first sliding frame 310 are uniformly distributed on the side wall of the rotating sleeve 250.

In this embodiment, the rotating sleeve 250 includes four rotating rings 251, the four rotating rings 251 are fixedly connected to the first sliding frame 310 and the second sliding frame 340, respectively, and the edge of the fixed plate 210 is rotatably connected to the uppermost rotating ring 251, so that the sliding chamber 260 is in a sealed space.

With the above embodiments, the usage principle and the working process of the present invention are as follows:

during operation, the suspension 130 that will detect is fixed and set up on the bottom plate 110, and with fixed block 240 lower terminal surface and suspension 130 up end fixed connection, adjust first drive assembly and second drive assembly through first adjusting part and second adjusting part, start hydraulic push rod 140, push rotating ring 220, make first spring 320, second spring 350 and third spring 380 take place the deformation back, push suspension 130, simulate automobile body rigidity according to the deformation volume of first spring 320, second spring 350 and third spring 380, and record suspension 130 performance that detects.

When the suspension 130 is tested for the first time, the hydraulic push rod 140 is started, and since the first sliding frame 310 is slidably disposed on the outer sidewall of the rotating sleeve 250, and the first spring 320 is disposed on the first sliding frame 310, the first stopper 330 is disposed at the upper end of the first spring 320, and the first stopper 330 is rotatably connected to the rotating ring 220. The lower end of the rotating shaft 230 is rotatably provided with a rotating frame 370, the rotating frame 370 is rotatably connected to the fixed plate 210, and four third springs 380 are arranged between the rotating frame 370 and the rotating ring 220. When the rotating ring 220 is pushed by the hydraulic push rod 140 to slide along the rotating shaft 230, the first spring 320 and the third spring 380 are compressed, and the rigidity of the vehicle body is simulated.

When the suspension 130 is tested for the second time, the rotating ring 220 is pushed to rotate around the rotating shaft 230, the third spring 380 is compressed, after the hydraulic push rod 140 is started, the rotating ring 220 is pushed to slide along the rotating shaft 230, the first spring 320 is compressed, the third spring 380 is further compressed, but the deformation amount of the first spring 320 and the third spring 380 is reduced from that of the first test, and the change of the suspension 130 is recorded.

When the suspension 130 is tested for the third time, the rotating disc 410 is pushed to rotate on the fixed plate 210, the rotating disc 410 drives the rotating block 440 rotatably arranged on the fixed plate 210 to rotate, because the rotating block 440 is provided with four layers of spaced annular tooth grooves 441, and the length of each layer of tooth groove 441 is different, the length of the tooth groove 441 is gradually reduced from bottom to top, and the four gear columns 420 rotatably arranged on the fixed plate 210 are respectively meshed with each layer of tooth groove 441, so that the rotating angles of the four gear columns 420 are reduced. Because catch bar 430 one end and gear post 420 meshing, catch bar 430's the other end and connecting block 450 fixed connection, in order when catch bar 430 slides, make fourth spring 460 compressed, make first telescopic link 530 slide along first slide 211 under the effect of fourth spring 460, the expansion ring 540 that sets up in first telescopic link 530 upper end enlarges, annular spout 541 has been seted up on the expansion ring 540, be provided with stopper 510 in the annular spout 541, make stopper 510 insert in the spacing groove 361 of second stopper 360 gradually. Because the connecting block 450 is disposed through the first sliding way 211 and fixedly connected to the sliding block 630 in the second sliding way 241, when the connecting block 450 slides in the second sliding way 241, the adjusting block 620 disposed in the second sliding way 241 slides, and the amount of gas in the second sliding way 241 is equal to the amount of gas between the two preset blocks 311, so that when the gas in the second sliding way 241 enters the sliding cavity 260, the two preset blocks 311 slide, and simultaneously the two first sliding frames 310 are driven to slide along the rotating sleeve 250, and further the two first sliding frames 310 and the second sliding frame 340 are uniformly distributed on the side wall of the rotating sleeve 250. At this time, the hydraulic push rod 140 is actuated to push the rotating ring 220 to slide downwards along the rotating shaft 230, and simultaneously, the two first springs 320, the one second spring 350 and the four third springs 380 are pressed to deform, so that the rigidity of the frame is simulated, and further, the change of the suspension 130 is recorded.

The adjusting blocks 620 in the other three second sliding ways 241 are sequentially made to slide by pushing the rotating disc 410, the limiting block 510 at the upper end of the first telescopic rod 530 is inserted into the limiting groove 361 of the second limiting block 360 under the action of the connecting block 450, the gas in the second sliding way 241 gradually makes the preset block 311 and the adjusting block 620 in the sliding cavity 260 slide, the second sliding frame 340 and the first sliding frame 310 are further uniformly distributed on the side wall of the rotating sleeve 250, and when the hydraulic push rod 140 pushes the rotating ring 220 to slide along the rotating shaft 230, the rigidity of the vehicle body is simulated according to the deformation amounts of the first spring 320, the second spring 350 and the third spring 380, and the change of the suspension 130 is recorded.

When the reset is performed, the rotating disc 410 is pushed to rotate reversely, so that the adjusting blocks 620 are gradually restored to the initial state in sequence.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit of the present invention are intended to be included therein.

Claims

1. The utility model provides a vehicle body rigidity simulation experiment equipment for suspension test which characterized in that: the method comprises the following steps:

a fixing frame for fixing the suspension (130);

the transmission device is fixedly connected to the suspension (130), a driving device is connected to the transmission device in a transmission mode, and the driving device extrudes the suspension (130) after transmission through the transmission device;

the transmission device comprises a first transmission assembly, a second transmission assembly, a rotating ring (220) and a fixed plate (210); the fixed plate (210) is fixedly connected to the suspension (130); the rotating ring (220) is arranged above the fixed plate (210), a rotating shaft (230) is coaxially arranged between the rotating ring (220) and the fixed plate (210), the rotating ring (220) is rotatably and slidably arranged on the rotating shaft (230), the rotating ring (220) is in transmission connection with a driving device, and the driving device is used for driving the rotating ring (220) to slide along the rotating shaft (230); the first transmission assembly is in transmission connection with the rotating ring (220) through the limiting assembly, so that when the rotating ring (220) slides along the rotating shaft (230), the first transmission assembly is extruded, and the rigidity of a vehicle body is simulated; the second transmission assembly is arranged between the rotating ring (220) and the fixing plate (210) so as to be extruded when the rotating ring (220) rotates, and the rigidity of the vehicle body is simulated;

the adjusting device comprises a first adjusting component and a second adjusting component, and the first adjusting component is used for adjusting the limit of the limiting component on the first transmission component; the second adjusting component is configured to be used for adjusting the position of the first transmission component on the side wall of the fixing plate (210), so that the first transmission component after the limiting component is limited is uniformly distributed on the outer side wall of the fixing plate (210).

2. The vehicle body rigidity simulation experiment device for the suspension test is characterized in that: the first transmission assembly comprises a first transmission unit and a second transmission unit, the first transmission unit comprises a first sliding frame (310) and a first elastic piece, the first sliding frame (310) is slidably arranged on the side wall of the fixed plate (210), one end of the first elastic piece is fixedly connected to the first sliding frame (310), and the other end of the first elastic piece is slidably connected to the side wall of the rotating ring (220) through a first stop block (330); the two groups of first transmission units are symmetrically arranged;

the second transmission unit is at least provided with four groups, each group of second transmission unit comprises a second sliding frame (340) and a second elastic piece, the second sliding frame (340) is slidably arranged on the outer side wall of the fixing plate (210), one end of each second elastic piece is fixedly connected to the second sliding frame (340), the other end of each second elastic piece is provided with a second stop block (360), the rotating ring (220) is arranged above the second stop block (360), the limiting assemblies are at least provided with four groups, each group of limiting assemblies is arranged in one-to-one correspondence with the second transmission units, each limiting assembly is arranged between the rotating ring (220) and the second stop block (360) of each group of second transmission units, and when the rotating ring (220) slides along the rotating shaft (230), and when the limiting assemblies are in transmission connection with the second stop blocks (360), the second elastic pieces and the first elastic pieces are all deformed.

3. The vehicle body rigidity simulation experiment device for the suspension test is characterized in that: the second transmission assembly comprises a rotating frame (370) and at least four third elastic pieces, the rotating frame (370) is rotatably arranged at the lower end of the rotating shaft (230), and the rotating frame (370) is rotatably connected with the fixed plate (210); one ends of the four third elastic pieces are uniformly connected in a rotating mode along the circumferential direction of the rotating frame (370), and the other ends of the four third elastic pieces are connected in a rotating mode to the rotating ring (220) so that the third elastic pieces deform when the rotating ring (220) rotates around the rotating shaft (230).

4. The vehicle body rigidity simulation experiment device for the suspension test is characterized in that: each group of limiting components comprises a limiting block (510) and a first telescopic rod (530); the fixed plate (210) is at least provided with four first slide ways (211), and the four first slide ways (211) are arranged corresponding to the second elastic pieces of the four groups of second transmission units; one end of the first telescopic rod (530) is slidably arranged in the first slideway (211), and the upper end of the first telescopic rod (530) is fixedly provided with a telescopic ring (540) so that the telescopic ring (540) is expanded or contracted when the first telescopic rod (530) slides in the first slideway (211); the side wall of the telescopic ring (540) is circumferentially provided with an annular sliding groove (541), the second stop block (360) is provided with a limit groove (361), the limit block (510) is slidably arranged in the annular sliding groove (541), and the length of the first telescopic rod (530) is preset to be consistent with that of the second elastic part, so that the limit block (510) enters the limit groove (361) when the first telescopic rod (530) slides in the first sliding way (211).

5. The vehicle body rigidity simulation experiment device for the suspension test is characterized in that: the first adjusting assembly comprises a rotating disc (410), at least four gear columns (420) and at least four push rods (430); a rotating block (440) is rotatably arranged between the rotating frame (370) and the fixed plate (210), at least four layers of annular tooth grooves (441) are arranged on the side wall of the rotating block (440), and the length of each layer of tooth groove (441) is sequentially reduced from bottom to top; the rotating disc (410) is rotatably arranged on the fixed plate (210), and the rotating disc (410) is in transmission connection with the rotating block (440) so that the rotating block (440) can synchronously rotate when the rotating disc (410) rotates; the four gear columns (420) are rotatably arranged on the fixing plate (210), and the four gear columns (420) are sequentially meshed with the spaced tooth grooves (441) from bottom to top, so that when the rotating block (440) rotates, the gear columns (420) rotate, and the rotating angles of the four gear columns (420) are different;

one end of each push rod (430) is fixedly connected to a first telescopic rod (530), and the other end of each push rod (430) is in transmission connection with a gear column (420).

6. The vehicle body rigidity simulation experiment device for the suspension test is characterized in that: the second adjusting component comprises a fixed block (240), an adjusting block (620) and a sliding block (630), the fixed block (240) is fixedly connected between the fixed plate (210) and the suspension (130), at least four second slide ways (241) are arranged on the fixed block (240), the four second slide ways (241) are arranged corresponding to the four first slide ways (211), and rotating sleeves (250) are arranged on the side wall of the fixed block (240) at intervals, so that a sliding cavity (260) is formed outside the peripheral wall of the fixed block (240); a blocking plate (242) used for blocking the second slide way (241) is arranged on the side wall of the fixing block (240), so that when the blocking plate (242) is opened, the second slide way (241) is communicated with the sliding cavity (260); the sliding block (630) is slidably arranged in the second slide way (241), and the first telescopic rod (530) penetrates through the first slide way (211) and is fixedly connected with the sliding block (630); the adjusting block (620) is slidably arranged in the second slide way (241) and can slide along the sliding cavity (260), so that when the sliding block (630) slides in the second slide way (241), the adjusting block (620) slides along the second slide way (241) and gradually opens the blocking plate (242), and the adjusting block (620) gradually slides towards the sliding cavity (260); the side wall of the adjusting block (620) is movably connected with the second sliding frame (340) so that the second sliding frame (340) slides along the side wall of the fixing plate (210) when the adjusting block (620) slides along the sliding cavity (260).

7. The vehicle body rigidity simulation experiment device for the suspension test is characterized in that: the two first sliding frames (310) are fixedly provided with preset blocks (311), the preset blocks (311) are arranged in the sliding cavity (260), and the gas quantity between the two preset blocks (311) is the same as that in the second sliding channel (241), so that when the adjusting block (620) enters the sliding cavity (260), the adjusting block (620) and the preset blocks (311) are uniformly distributed in the sliding cavity (260).

8. The vehicle body rigidity simulation experiment device for the suspension test is characterized in that: an air inlet hole (243) is arranged at the inner end part of the second slideway (241).

9. The vehicle body rigidity simulation experiment device for the suspension test is characterized in that: the rotating sleeve (250) at least comprises four rotating rings (251), and the four rotating rings (251) are respectively and fixedly connected with the first sliding frame (310) and the second sliding frame (340).

10. The vehicle body rigidity simulation experiment device for the suspension test according to claim 9, wherein: the first elastic piece is a first spring (320), the second elastic piece is a second spring (350), the third elastic piece is a third spring (380), the elastic coefficients of the first spring (320) and the second spring (350) are consistent, and the elastic coefficient of the third spring (380) is smaller than that of the second spring (350).