CN109900498B - Automobile whole reliability test bed and use method - Google Patents
Automobile whole reliability test bed and use method Download PDFInfo
- Publication number
- CN109900498B CN109900498B CN201910321972.3A CN201910321972A CN109900498B CN 109900498 B CN109900498 B CN 109900498B CN 201910321972 A CN201910321972 A CN 201910321972A CN 109900498 B CN109900498 B CN 109900498B
- Authority
- CN
- China
- Prior art keywords
- assembly
- shaft
- steel frame
- wheel
- automobile
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The test bed for the reliability of the whole automobile and the using method thereof comprise a plurality of X-Y axis excitation assemblies, a plurality of Z axis excitation assemblies, a plurality of lifting rotating assemblies, a plurality of rotating drum assemblies and a fan assembly, wherein every two X-Y axis excitation assemblies are installed in a butt joint mode through wide edges, the lifting rotating assemblies are installed at the tops of every X-Y axis excitation assembly, the Z axis excitation assemblies are installed at the tops of every lifting rotating assembly, the rotating drum assembly is installed at the top of every Z axis excitation assembly, the X-Y axis excitation assemblies, the Z axis excitation assemblies, the lifting rotating drum assemblies and the rotating drum assemblies form an integral main assembly, the X-Y axis excitation assemblies, the lifting assemblies, the Z axis excitation assemblies and the rotating drum assemblies are all installed below the ground, the upper surface of a bottom plate III of the rotating drum assembly is flush with the ground, and the fan assembly is installed on the ground, the lower surface of the fan base supporting leg of the fan assembly is flush with the ground, and the device can simulate a more complex state when an automobile runs and comprehensively check the comprehensive performance of the automobile.
Description
Technical Field
The invention belongs to the technical field of automobile test platforms, and particularly relates to an automobile reliability test bed and a use method thereof.
Background
In the early days, automobiles were only run for short tests after final assembly to check their quality. Some automobile manufacturers build dedicated test runs (including different roads and ramps) near the factory floor. In 1924, a dedicated automobile test field was established by U.S. general automobile company in Milford. Subsequently, the automotive companies in the united states and europe have self-established test yards in tandem. There are more than 60 large and small test fields with the area of 100-3500 hectares in the world. In addition to testing the entire vehicle, various major automotive plants and professional manufacturers utilize laboratory test benches to test performance, efficiency, reliability, durability, and other items of major components such as engines, carburetors, clutches, transmissions, drive shafts, steering gears, brakes, and the like. Since the 70 s, due to the development of simulation theory and electronic computer technology, a part test bed and a whole vehicle test bed controlled by an electronic system and used for simulating the actual driving condition are developed, many projects needing to be tested on a test field originally can be carried out in a test room, the test time is shortened, and a reliable and high-comparability test result can be obtained. However, since the conditions for using the automobile are complicated, the results of actual use and the user's response are still used as the basis. Therefore, the test bench and the test field test must be mutually verified with the actual use result to find the equivalent value between the two.
The shaping test of the mass-produced automobile is carried out before the formal production of the automobile or main parts thereof so as to check the performance, efficiency, reliability, durability and adaptability of the automobile or the parts and ensure that the product meets the use requirement. In the test, 3-8 sample vehicles are generally used, one part of the test is subjected to a performance test, a reliability test and a durability test of 5-16 kilometres, and the other part of the test is subjected to an adaptability test, wherein the performance test comprises dynamic property, fuel economy, braking property, control stability, smoothness and trafficability property. The new vehicle model still needs to be subjected to developmental tests before such tests are performed. The accumulated test mileage of various vehicles and parts thereof can reach over a million kilometers. And after the sample car test, modifying a drawing, eliminating defects, and then manufacturing 20-50 cars for a larger-scale actual use test to check the stability of the process, and then putting the cars into production. For automobiles with low yield, such as dump trucks for industrial and mining, the main parts are the existing products of professional factories, so that the reliability and durability tests are only carried out on self-made parts such as frames, and the performance, adaptability, reliability and durability tests of the whole automobile are carried out in field use.
The current outdoor test field requires professional construction and maintenance with high cost and a trained professional vehicle driver team. Compared with a test bench, the test bench has the advantages of low test cost, short test time, easily controlled test conditions and increasingly expanded application range. However, the test is generally used for single performance or durability tests or comprehensive tests of a few related projects, the running state of the simulated automobile is single, most automobiles only run on a conveyor belt at a constant speed in a wind tunnel, more complex states cannot be simulated, the comprehensive performance cannot be comprehensively examined, most test tables can only test a few automobiles with specified models, and the popularization is low.
Disclosure of Invention
In order to achieve the purpose, the invention provides a reliability test bed for the whole automobile, which comprises a plurality of X-Y axis excitation assemblies, a plurality of Z axis excitation assemblies, a plurality of lifting rotating assemblies, a plurality of rotating drum assemblies and a fan assembly, wherein every two X-Y axis excitation assemblies are installed in a butt joint mode through wide edges, the top of each X-Y axis excitation assembly is provided with the lifting rotating assembly, the top of each lifting rotating assembly is provided with the Z axis excitation assembly, the top of each Z axis excitation assembly is provided with the rotating drum assembly, the X-Y axis excitation assemblies, the Z axis excitation assemblies, the lifting rotating assemblies and the rotating drum assemblies form an integral main assembly, the X-Y axis excitation assemblies, the lifting assemblies, the Z axis excitation assemblies and the rotating drum assemblies are all installed below the ground, the upper surfaces of bottom plates III of the rotating drum assemblies are flush with the ground, the fan assembly is installed on the ground, and the lower surface of the fan base supporting leg of the fan assembly is flush with the ground.
The X-Y axis excitation assembly comprises a bottom plate, the bottom plate is fixedly arranged below the ground, a guide rail base is arranged on the upper surface of the bottom plate along the length direction, short fixed steel frames are respectively arranged on the upper surfaces of the guide rail base, short slide rail slider devices I are arranged on the two short fixed steel frames, a long fixed steel frame is arranged on the upper surface of the bottom plate along the width direction, long slide rail slider devices I are arranged on the two long fixed steel frames, rod supporting seats are respectively arranged on the slider surfaces of the long slide rail slider devices I and the short slide rail slider devices I, a long round rod is arranged between the two rod supporting seats on the short slide rail slider devices I, a short round rod is arranged between the two rod supporting seats on the long slide rail slider devices I, two springs I and two spring bases are respectively arranged on the short round rod and the long round rod, one end of each spring I is connected with the spring base, and a vibration exciter I is arranged on the lower surface of the top plate of the assembly.
The lifting rotating assembly comprises an assembly bottom plate, a lower fixed steel frame assembly and an upper fixed steel frame assembly, the assembly bottom plate of the lifting rotating assembly is fixedly installed with an assembly top plate of the X-Y-axis excitation assembly, the upper surface of the assembly bottom plate is provided with the lower fixed steel frame assembly, the lower fixed steel frame assembly comprises a lower outer fixed steel frame, a lower inner fixed steel frame and a lower short fixed steel frame, the lower outer fixed steel frame and the lower short fixed steel frame are connected end to end, a lower inner fixed steel frame is symmetrically arranged between the two lower short fixed steel frames, a lower outer slide rail sliding block device and a lower inner slide rail sliding block device are respectively installed on the lower outer fixed steel frame and the lower inner fixed steel frame, a lower outer shaft rolling support is installed at the top of a sliding block of the lower outer slide rail sliding block device, a rolling shaft I is installed between the two lower outer shaft rolling supports, and a lower inner shaft rolling support is installed at, a rolling shaft II is arranged between two lower inner side shaft rolling shaft supports, the upper fixed steel frame component comprises an upper outer side fixed steel frame, an upper inner side fixed steel frame and an upper short fixed steel frame, the upper outer side fixed steel frame and the upper short fixed steel frame are connected end to end, an upper inner side fixed steel frame is symmetrically arranged between the two upper short fixed steel frames, the upper outer side fixed steel frame and the upper inner side fixed steel frame are respectively provided with an upper outer side slide rail sliding block device and an upper inner side slide rail sliding block device, the bottom of a sliding block of the upper outer side slide rail sliding block device is provided with an upper outer side shaft rolling support, a rolling shaft III is arranged between the two upper outer side rolling shaft supports, the bottom of a sliding block of the upper inner side slide rail sliding block device is provided with an upper inner side shaft rolling support, a rolling shaft IV is arranged between the two upper inner side shaft rolling supports, one end of the rolling shaft I is, one end of a rolling shaft II is connected with one end of a rolling shaft IV through a long rod III, the other end of the rolling shaft II is connected with the other end of the rolling shaft IV through a long rod IV, a stabilizing shaft is inserted into center holes of the long rod I, the long rod III, the long rod IV and the long rod II, a hydraulic cylinder bearing bottom plate is arranged on the upper surface of the assembly bottom plate, hydraulic cylinder bearing bases are symmetrically arranged on the upper surface of the hydraulic cylinder bearing bottom plate, a hydraulic cylinder is arranged on the upper surface of each hydraulic cylinder bearing base, hydraulic cylinder flanges are arranged at the tail ends of piston rods of the hydraulic cylinders, lifting plates are arranged on the upper surfaces of the two hydraulic cylinder flanges and the upper surface of an upper fixing steel frame, the lifting plates are fixedly arranged on the upper fixing steel frame and the hydraulic cylinder flanges, eyelet ball base plates are arranged at four corners of the lifting plates, eyelet balls are arranged on each, bearing inner race and swivel bearing seat of honour fixed mounting, the swivel bearing seat of honour passes through the key-type connection gear wheel, gear wheel top and I fixed mounting of roof, surface mounting has the motor backup pad on the lifter plate, and the motor fixed plate is installed at two motor backup pad tops, and the lower fixed surface of motor fixed plate installs step motor, and step motor output shaft runs through motor fixed plate part and passes through the key-type connection and gear wheel mesh's pinion.
Z axle excitation subassembly includes bottom plate I, Z axle excitation subassembly's bottom plate I and I fixed mounting of roof of lifting and drop rotating assembly, I upper surface four corners department fixed mounting of bottom plate has lower guide arm, and lower guide arm excircle cover is equipped with spring II and last guide arm, and II one end of spring support on the end flange of lower guide arm, and the other end supports on the terminal surface of last guide arm one end, goes up the end flange and II fixed mounting of roof of the guide arm other end, and the lower surface center department fixed mounting of roof II has II fixed plates of vibration exciter, and fixed mounting has vibration exciter II on II fixed plates of vibration exciter.
The rotary drum component comprises a bottom plate III and guide rail upper platforms, the bottom plate III of the rotary drum component and a top plate II of a Z-axis excitation component are fixedly installed, slide rail slider devices II are symmetrically arranged on the upper surface of the bottom plate III along the length direction, two guide rail upper platforms are installed on the upper surfaces of sliders of the slide rail slider devices II, motor bases are installed at one ends of the upper surfaces of the two guide rail upper platforms, motors are fixedly installed on the motor bases, output shafts of the motors are connected with one ends of driving shafts through clutches, axial fixing pieces and keys, bearing base bases are installed on the upper surfaces of the two guide rail upper platforms, bearing bases I are installed on the upper surfaces of the bearing base, the other ends of the driving shafts penetrate through the bearing bases I, rotary drum front covers and rotary drum rear covers are installed through rotary drum keys, rotary drum bodies are installed between the rotary drum front covers and the, a bearing seat II is installed at the bottom of an inner cavity of a damping device box seat, a damping device middle section is fixedly installed at the top of the damping device box seat, three large through holes are formed on two opposite side walls at the joint of the damping device box seat and the damping device middle section, a driving bearing is installed in one of the large through holes, a driving shaft through cover is installed in the large through hole outside the driving bearing, a driving shaft gasket is installed between the driving shaft through cover and the driving bearing, a sealing ring is installed on the inner ring of the driving shaft through cover, the driving shaft penetrates through the driving shaft gasket, the sealing ring, the driving bearing, a driving shaft oil baffle disc, a driving wheel and the bearing seat II in sequence to be rotatably installed, driven shafts are installed in the two coaxially arranged large through holes through the driven bearing in a rotating mode, driven shaft cover covers are installed on the inner walls of the large through holes, a driven wheel and a damping sleeve are arranged on the excircle of the driven shaft, a driven shaft oil baffle disc is arranged between the driven wheel and one driven bearing and between the damping sleeve and the other driven bearing, two small through holes are formed on the other two opposite side walls at the joint of the damping device box seat and the middle section of the damping device, a control rod is fixedly arranged in each small through hole and is in threaded connection with a central threaded hole of a damping slide block, an upper cover of the damping device is fixedly arranged at the top of the middle section of the damping device, guide rods are fixedly arranged in the through holes of the middle section of the damping device and the damping device box seat and are perpendicular to the driving shaft, and the four guide rods are in threaded connection with four threaded, the damping slide block is characterized in that damping pieces are arranged on the arc surface of the damping slide block, threaded holes are formed in the guide rail upper platform, operating rods are screwed in the threaded holes, discs are arranged at two ends of each operating rod, and damping gaskets are arranged on the upper surfaces of the discs at the bottom ends of the operating rods.
The fan assembly comprises a fan base, the fan base is installed on the ground, and three fans are arranged on the upper surface of the fan base.
The use method of the whole automobile reliability test bed adopts the whole automobile reliability test bed and comprises the following steps:
step 1, determining the wheel track, the wheel base and the wheel size of an automobile according to the type of the automobile to be tested, positioning and determining the position of a rotary drum body by adjusting a positioning operating rod and a slide rail slide block device II in a rotary drum assembly, hoisting the automobile on a test bed, and enabling the wheel of the automobile to be tested to be positioned in a gap between adjacent wheel hubs;
step 2, starting a vibration exciter I starting button of an X-Y axis vibration exciting assembly on the master control platform to start a vibration exciter I, applying X-Y axis vibration excitation to a structure above an assembly top plate through four vibration exciters I in the X-Y axis vibration exciting assembly, and generating X-Y axis vibration through interaction of the vibration exciters I and a damping force of a spring I to simulate vibration from the front, the back and the side when the automobile meets the raised ground;
and 6, according to experimental requirements, after the angle of the fan is manually adjusted, starting a fan starting button on the master control console to start the fan, and manually adjusting the wind direction and the wind power of the fan to simulate the wind resistance of the automobile in running.
The invention has the beneficial effects that:
1. the four standard slide rail sliding block devices in the X-Y axis excitation assembly in the test bed for the reliability of the whole automobile, and the long round rods and the short round rods on the four standard slide rail sliding block devices can enable the top plate of the assembly to be free from interference when excited in the X-axis direction and the Y-axis direction, so that the acting force of the side surface direction, the front surface direction and the rear surface direction on the automobile in the driving process of the automobile can be simulated, the more complex driving state of the automobile can be further simulated, and the comprehensive performance can be comprehensively examined.
2. The elasticity of the spring I in the X-Y axis excitation assembly in the test bed for the reliability of the whole automobile can interact with the excitation force generated by the vibration exciter I, so that the service life of the X-Y axis excitation assembly is ensured, and the real driving condition of the automobile is better simulated.
3. The two standard slide rail sliding block devices in the lifting rotating assembly in the test bed for the reliability of the whole automobile are matched with the two standard hydraulic cylinders, so that a lifting plate of the device can perform lifting motion, the condition that the automobile runs on a step-shaped road surface in the running process is simulated, the running state of the more complex automobile is simulated, and the comprehensive performance is comprehensively examined.
4. The standard stepping motor, the pinion and the bull gear in the lifting rotating assembly in the test bed for the reliability of the whole automobile can be matched with each other, so that the lifting plate can rotate at any specific angle, the condition that the automobile needs to be steered during running is simulated, the more complex running state of the automobile is simulated, and the comprehensive performance is comprehensively examined.
5. The lower guide rod and the upper guide rod in the Z-axis vibration exciting assembly in the test bed for the reliability of the whole automobile are matched for use, and the elasticity of the spring II and the exciting force of the vibration exciter II interact with each other, so that the Z-axis vibration exciting of the assembly is stable, the service life of the assembly is ensured, and the condition that the automobile meets a pothole road surface is better simulated.
6. The upper platform of the guide rail in the rotary drum assembly in the test bed for the reliability of the whole automobile is provided with the threaded through hole, the threaded slider positioning operating rod is screwed in the guide rail, the tail end of the slider positioning operating rod is threaded, and the contact surface of the operating rod and the bottom plate III is provided with the slider positioning damping gasket, so that the rotary drum can be adjusted to adapt to automobiles of different models by matching with the slider sliding rail device II, and the application range is wide.
7. When the automobile tire on the wheel drum in the rotary drum assembly in the whole automobile reliability test bed is actively driven, the clutch is disconnected, the damping device operating rod is rotated to enable the driven shaft damping sleeve to be in contact with the damping sheet on the damping slide block, under the working condition of the assembly, the automobile tire actively rotates to drive the wheel drum to rotate, the rotary drum drives the driving shaft to rotate, and the torque of the driving shaft and the torque of the driven shaft interact, so that the load is brought to the actively rotating tire.
8. When the automobile tire on the wheel drum in the rotary drum assembly in the whole automobile reliability test bed is driven, the clutch is closed, the damping device operating rod is rotated to separate the damping sleeve of the driven shaft from the damping sheet on the damping slide block, the standard motor is started, and under the condition of the operation of the assembly, the point power output shaft rotates to drive the wheel drum to rotate, and the rotary drum drives the automobile tire to rotate, so that the driving force is brought to the driven rotating tire.
9. The fan in the fan assembly in the test bed for the reliability of the whole automobile is started, and the wind resistance of the automobile in running can be simulated by adjusting the wind speed direction and the wind power.
Drawings
FIG. 1 is a schematic view of the complete structure of the complete vehicle reliability test bed of the invention;
FIG. 2 is a schematic structural view of the X-Y excitation assembly of the present invention with portions of the components hidden;
FIG. 3 is a schematic view of the complete structure of the X-Y axis excitation assembly of the present invention;
FIG. 4 is a first schematic view of the lifting rotating assembly of the present invention with parts hidden;
FIG. 5 is a second schematic view of the lifting rotating assembly of the present invention with parts hidden;
FIG. 6 is a third schematic view of the lifting rotating assembly of the present invention with parts hidden;
FIG. 7 is a schematic view of the complete structure of the lifting rotating assembly of the present invention;
FIG. 8 is a schematic view of the complete structure of a first view of the Z-axis excitation assembly of the present invention;
FIG. 9 is a complete structural schematic of a second perspective of the Z-axis excitation assembly of the present invention;
FIG. 10 is a first schematic view of the drum assembly of the present invention with parts hidden;
FIG. 11 is a second schematic view of the drum assembly of the present invention with parts hidden;
FIG. 12 is a schematic view of the drum assembly of the present invention in its entirety from a first perspective;
FIG. 13 is a full structural schematic view of the drum assembly of the present invention from a second perspective;
FIG. 14 is a schematic view of a fan assembly according to the present invention in its complete configuration;
1-X-Y axis excitation assembly, 101-bottom plate, 102-guide rail base, 103-short fixed steel frame, 104-long fixed steel frame, 105-short slide block device I, 106-long slide block device I, 107-rod support base, 108-long round rod, 109-short round rod, 110-spring I, 111-spring base, 112-assembly top plate, 113-vibration exciter I, 114-vibration exciter I base, 2-lifting rotating assembly, 201-assembly bottom plate, 202-lower outer fixed steel frame, 203-lower inner fixed steel frame, 204-lower short fixed steel frame, 205-lower outer slide block device, 206-lower inner slide block device, 207-lower outer shaft rolling support, 208-rolling shaft I, 209-lower inner shaft rolling support, 210-rolling shaft II, 211-upper outer side fixed steel frame, 212-upper inner side fixed steel frame, 213-upper short fixed steel frame, 214-upper outer side sliding rail sliding block device, 215-upper inner side sliding rail sliding block device, 216-upper outer side shaft rolling support, 217-rolling shaft III, 218-upper inner side shaft rolling support, 219-rolling shaft IV, 220-long rod I, 221-long rod II, 222-long rod III, 223-long rod IV, 224-stable shaft, 225-hydraulic cylinder bearing bottom plate, 226-hydraulic cylinder bearing base, 227-hydraulic cylinder, 228-hydraulic cylinder flange, 229-lifting plate, 230-bullseye ball cushion plate, 231-bullseye ball, 232-rotary bearing support, 233-positioning sleeve, 234-top plate I, 235-rotary bearing upper seat, 236-a bull gear, 237-a motor support plate, 238-a motor fixing plate, 239-a stepping motor, 240-a pinion, a 3-Z-axis excitation assembly, 301-a base plate I, 302-a lower guide rod, 303-an upper guide rod, 304-a spring II, 305-a top plate II, 306-a vibration exciter II fixing plate, 307-a vibration exciter II, 4-a rotary drum assembly, 401-a base plate III, 402-a slide block device II, 403-a guide rail upper platform, 404-a motor base, 405-a motor, 406-a clutch, 407-a driving shaft, 408-a bearing base, 409-a bearing base I, 410-a rotary drum front cover, 411-a rotary drum rear cover, 412-a rotary drum body, 413-a damping device box base, 414-a bearing base II, 415-a damping device middle section, 416-driving bearing, 417-driving shaft transparent cover, 418-driving shaft gasket, 419-sealing ring, 420-driving shaft oil baffle disc, 421-driven bearing, 422-driven shaft blank cover, 423-driven shaft gasket, 424-driven wheel, 425-damping sleeve, 426-driven shaft oil baffle disc, 427-control rod, 428-damping slide block, 429-damping device upper cover, 430-guide rod, 431-damping sheet, 432-operating rod, 433-damping gasket, 434-driving wheel, 435-driven shaft, 5-fan assembly, 501-fan base and 502-fan.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in figure 1, the test bed for the reliability of the whole automobile comprises four X-Y axis excitation assemblies 1, four Z axis excitation assemblies 3, four lifting rotating assemblies 2, four rotating drum assemblies 4 and a fan assembly 5, wherein every two X-Y axis excitation assemblies 1 are installed in a butt joint mode through wide edges, the lifting rotating assemblies 2 are installed on the tops of the X-Y axis excitation assemblies 1, the Z axis excitation assemblies 3 are installed on the tops of the lifting rotating assemblies 2, the rotating drum assemblies 4 are installed on the tops of the Z axis excitation assemblies 3, the X-Y axis excitation assemblies 1, the Z axis excitation assemblies 3, the lifting rotating assemblies 2 and the rotating drum assemblies 4 form an integral main assembly, gaps are formed between every two adjacent integral main assemblies and can be adjusted according to the types of automobiles to be tested, and the X-Y axis excitation assemblies 1, the rotating drum assemblies 3 and the rotating drum, Lifting unit 2, Z axle excitation subassembly 3 and rotary drum subassembly 4 all install in the below ground round hole, and the diameter in round hole is greater than test bench diagonal line size, and the III 401 upper surface of bottom plate and the ground parallel and level of rotary drum subassembly 4, subaerial fan subassembly 5 of installing, the lower surface and the ground parallel and level of fan base 501 landing leg of fan subassembly 5.
As shown in fig. 2 and 3, the X-Y axis excitation assembly 1 includes a base plate 101, the base plate 101 is fixedly installed below the ground by anchor bolts, symmetrically arranged guide rail bases 102 are fixedly installed on the upper surface of the base plate 101 along the length direction by bolts, the guide rail bases 102 are made of i-shaped steel, short fixed steel frames 103 are installed on the upper surfaces of the two guide rail bases 102, short slide rail slider devices i 105 are installed on the two short fixed steel frames 103, symmetrically arranged long fixed steel frames 104 are fixedly installed on the upper surface of the base plate 101 along the width direction by bolts, long slide rail slider devices i 106 are installed on the two long fixed steel frames 104, rod support seats 107 are fixedly installed on the slider surfaces of the long slide rail slider devices i 106 and the short slide rail slider devices i 105 by bolts, two rods 107 coaxially installed on the short slide rail slider devices i 105 are fixedly installed with flanges at two ends of the long rods 108 by bolts, two rod supporting seats 107 coaxially arranged on a long slide rail slider device I106 are fixedly arranged with flanges at two ends of a short round rod 109 respectively through bolts, each short round rod 109 and each long round rod 108 are respectively provided with two springs I110 and two spring bases 111, each spring base 111 consists of a moving part and a connecting part, the moving part is a cuboid part of which one short side is an arc edge, a through hole is arranged at the arc edge, the connecting part is a square plate, one end of the moving part is slidably arranged with the short round rod 109 or the long round rod 108, the other end of the moving part is integrally formed with the connecting part, one end of each spring I110 is connected with the moving part of the spring base 111, the other end of each spring I is connected with the rod supporting seat 107, the rod supporting seat 107 is formed by welding two plates, the other plate is vertically arranged at the symmetrical center of one plate, threaded holes are respectively arranged on the two plates, the upper surface of the connecting part of the spring, four vibration exciters I113 are respectively installed on the lower surface of the assembly top plate 112 through four vibration exciters I bases 114, when the four vibration exciters I113 are started through a master control platform, the vibration exciters I113 drive the assembly top plate 112 to vibrate, the vibration exciters I110 interact with damping force of the springs I, and the vibration exciting direction and degree of the structure above the assembly top plate 112 are controlled by controlling the starting stop and the exciting force of each vibration exciter I113.
As shown in fig. 4-7, the lifting and rotating assembly 2 includes an assembly bottom plate 201, a lower fixed steel frame assembly and an upper fixed steel frame assembly, the assembly bottom plate 201 of the lifting and rotating assembly 2 is fixedly mounted on the assembly top plate 112 of the X-Y excitation assembly 1 by bolts, the lower fixed steel frame assembly is fixedly mounted on the upper surface of the assembly bottom plate 201 by bolts, the lower fixed steel frame assembly includes a lower outer fixed steel frame 202, a lower inner fixed steel frame 203 and a lower short fixed steel frame 204, the lower outer fixed steel frame 202 and the lower short fixed steel frame 204 are connected end to end, a lower inner fixed steel frame 203 is symmetrically disposed between the two lower short fixed steel frames 204, the lower inner fixed steel frame 203 is tightly attached to the lower outer fixed steel frame 202, the lower outer fixed steel frame 202 and the lower inner fixed steel frame 203 are respectively mounted with a lower outer slide block device 205 and a lower inner slide block device 206, the top of a slide block of a lower outer slide rail slide block device 205 is fixedly installed with a lower outer shaft rolling support 207 through a bolt, a rolling shaft I208 is installed between the two lower outer shaft rolling supports 207, the top of a slide block of a lower inner slide rail slide block device 206 is installed with a lower inner shaft rolling support 209 through a bolt, a rolling shaft II 210 is installed between the two lower inner shaft rolling support 206, the upper fixed steel frame component comprises an upper outer fixed steel frame 211, an upper inner fixed steel frame 212 and an upper short fixed steel frame 213, the upper outer fixed steel frame 211 and the upper short fixed steel frame 213 are connected end to end, an upper inner fixed steel frame 212 is symmetrically arranged between the two upper short fixed steel frames 213, the upper inner fixed steel frame 212 is tightly jointed with the upper outer fixed steel frame 211, the upper outer fixed steel frame 211 and the upper inner fixed steel frame 212 are respectively provided with an upper outer slide rail slide block device 214 and an upper inner slide rail slide block, an upper outer side shaft rolling support 216 is installed at the bottom of a sliding block of an upper outer side slide rail sliding block device 214 through a bolt, a rolling shaft III 217 is installed between the two upper outer side rolling shaft support 216, an upper inner side shaft rolling support 218 is installed at the bottom of a sliding block of an upper inner side slide rail sliding block device 215 through a bolt, a rolling shaft IV 219 is installed between the two upper inner side shaft rolling supports 218, one end of the rolling shaft I208 is connected with one end of the rolling shaft III 217 through a long rod I220, the other end of the rolling shaft I208 is connected with the other end of the rolling shaft III 217 through a long rod II 221, the long rod I220 and the long rod II 221 are positioned between the two outer side shaft rolling supports, the rolling shaft II 210 is connected with one end of the rolling shaft IV 219 through a long rod III 222, the other end of the rolling shaft II is connected with the long rod IV 223, the long rod III 222 and the, the upper surface of the assembly bottom plate 201 is provided with a hydraulic cylinder bearing bottom plate 225 through bolts, the upper surface of the hydraulic cylinder bearing bottom plate 225 is symmetrically provided with hydraulic cylinder bearing bases 226 through bolts, the upper surface of the hydraulic cylinder bearing base 226 is fixed with a mounting flange of a hydraulic cylinder 227 through bolts, the tail end of a piston rod of the hydraulic cylinder 227 is provided with a hydraulic cylinder flange 228, the upper surfaces of the two hydraulic cylinder flanges 228 and the upper surface of an upper fixed steel frame are simultaneously provided with a lifting plate 229, the lifting plate 229 is fixedly arranged on the upper fixed steel frame and the hydraulic cylinder flange 228 through bolts, the four corners of the lifting plate 229 are respectively provided with a bull eye ball cushion plate 230, each bull eye ball cushion plate 230 is provided with a bull eye ball 231, the center of the upper surface of the lifting plate 229 is fixedly arranged with a flange end of a rotary bearing support 232 through bolts, and the rotary bearing, the other end of the disc bearing is fixedly installed with an upper seat 235 of the rotating bearing, the upper seat 235 of the rotating bearing is connected with a large gear 236 through a large gear key, the large gear key is a square head flat key, the length L is 60mm, the width B is 50mm, the thickness H is 30mm, the top of the large gear 236 is fixedly installed with a top plate I234 through bolts, the lower surface of the top plate I234 forms rolling contact with a bull-eye ball 231, a motor supporting plate 237 is installed on the upper surface of the lifting plate 229, the motor supporting plate 237 is positioned between two bull-eye ball backing plates 230 arranged along the wide edge, motor fixing plates 238 are installed at the tops of the two motor supporting plates 237 through bolts, a stepping motor 239 is fixedly installed on the lower surface of the motor fixing plate 238 through bolts, an output shaft of the stepping motor 239 penetrates through a pinion 240 which is connected with the large gear 236 through, the width B is 20mm, the thickness H is 15mm, the tooth thickness of the large gear 236 is the same as that of the small gear 240, the modulus is the same, the small gear 240 and the large gear 236 realize meshing transmission, and the small gear 240 drives the large gear 236 to rotate at a specified angle under the driving of the stepping motor 239.
As shown in fig. 8-9, the Z-axis excitation assembly 3 includes a base plate i 301, the base plate i 301 of the Z-axis excitation assembly 3 and a top plate i 234 of the lifting and rotating assembly 2 are fixedly mounted through bolts, four corners of the upper surface of the base plate i 301 are fixedly mounted with end flanges of a lower guide rod 302 through bolts, an outer circle of the lower guide rod 302 is sleeved with a spring ii 304 and an upper guide rod 303, a joint of the upper guide rod 303 and the lower guide rod 302 needs to be regularly coated with lubricating oil, one end of the spring ii 304 abuts against an end flange of the lower guide rod 302, the other end abuts against an end surface of one end of the upper guide rod 303, an end flange at the other end of the upper guide rod 303 is fixedly mounted with a top plate ii 305 through bolts, a vibration exciter ii fixing plate 306 is mounted at the center of the lower surface of the top plate ii 305 through bolts, a long side of the vibration exciter ii fixing plate 306 is equal, and starting a vibration exciter II 307 button on the master control platform, applying Z-direction vibration excitation to the test device, and interacting with the damping force of the spring II 304 to realize Z-axis direction vibration of the assembly.
As shown in fig. 10-13, the rotary drum assembly 4 includes a bottom plate iii 401 and two upper guide rail platforms 403, the bottom plate iii 401 of the rotary drum assembly 4 and a top plate ii 305 of the Z-axis excitation assembly 3 are fixedly mounted by bolts, the upper surface of the bottom plate iii 401 is symmetrically provided with two slide rail slider devices ii 402 along the length direction, four sliders are mounted on the slide rail of each slide rail slider device ii 402, one end of one upper guide rail platform 403 is fixedly mounted with two sliders on one slide rail slider device ii 402 by bolts, the other end of the one upper guide rail platform 403 is fixedly mounted with two sliders on the other slide rail slider device ii 402 by bolts, one end of the other upper guide rail platform 403 is fixedly mounted with the other two sliders on the other slide rail slider device ii 402 by bolts, and the other end of the other upper guide rail platform 403 is fixedly mounted with the other two sliders, one end of the upper surface of each of the two guide rail upper platforms 403 is fixedly provided with a motor base 404 through a bolt, the two motor bases 404 are fixedly provided with motors 405 through bolts, the output shafts of the motors 405 are connected with one end of a driving shaft 407 through a clutch 406, an axial fixing piece and a round head common flat key, the length L of the round head common flat key is 30mm, the width B of the round head common flat key is 20mm, the thickness of the round head common flat key is 30mm, the upper surfaces of the two guide rail upper platforms 403 are respectively provided with a bearing base 408, the upper surface of the bearing base 408 is provided with a bearing base I409, the other end of the driving shaft 407 penetrates through the bearing base I409 and is provided with a rotary drum front cover 410 and a rotary drum rear cover 411 through a rotary drum key, the rotary drum key is a round head common flat key, one end of the round head common flat key is provided with an axial limiting clamping groove for limiting the axial movement of the rotary drum front, a damping device box seat 413 is fixedly installed at the other end of the upper surface of the guide rail upper platform 403, a bearing seat II 414 is installed at the bottom of an inner cavity of the damping device box seat 413, a damping device middle section 415 is fixedly installed at the top of the damping device box seat 413, three large through holes are formed in two opposite side walls at the joint of the damping device box seat 413 and the damping device middle section 415, a driving bearing 416 is installed in one of the large through holes, a driving shaft through cover 417 is installed in the large through hole at the outer side of the driving shaft bearing 416, a driving shaft gasket 418 is installed between the driving shaft through cover 417 and the driving shaft bearing 416, a sealing ring 419 is installed on the inner ring of the driving shaft through cover 417, the driving shaft 407 penetrates through a drum rear cover 411 part and sequentially penetrates through the driving shaft gasket 418, the sealing ring 419, the driving shaft bearing 416, a driving shaft oil baffle, a driven shaft 435 is rotatably arranged in two coaxially arranged large through holes through a driven bearing 421, a driven shaft blank cap 422 is arranged on the inner wall of the large through hole at the outer side of the two driven bearings 421, a driven shaft gasket 423 is arranged between the driven shaft blank cap 422 and the driven bearing 421, a driven wheel 424 and a damping sleeve 425 are arranged on the excircle of the driven shaft 435, the driven wheel 424 is fixedly arranged with the driven shaft 435 through a driven wheel key, the driven wheel key and a driving wheel key are both square ordinary flat keys, the length L is 40mm, the width B is 32mm, the thickness H is 15mm, the driven wheel 424 is meshed with the driving wheel 434, driven shaft oil baffle discs 426 are arranged between the driven wheel 424 and one driven bearing 421 and between the damping sleeve 425 and the other driven bearing 421, two small through holes are formed on the other two opposite side walls at the joint of the damping device box seat 413 and the damping device middle section 415, and a control rod 427 is, and the control rod 427 is disposed perpendicularly to the driven shaft 424, the control rod 427 is screw-coupled with the central screw hole of the damping slider 428, movement of the dampening shoe 428 on the control rod 427 is accomplished by rotating a disc on the control rod 427, further adjusting the fit degree of the damping slide block 428 and the damping sheet 431, thereby adjusting the damping force, wherein the top of the middle section 415 of the damping device is fixedly provided with an upper cover 429 of the damping device, the middle section 415 of the damping device and the through hole of the box base 413 of the damping device are provided with guide rods 430 in interference fit, the guide rods 430 are vertically arranged with the driving shaft 407, the four guide rods 430 are respectively in threaded connection with four threaded holes at four corners of the damping slide block 428, the damping sheet 431 is arranged on the arc surface of the damping slide block 428, threaded holes are formed in the two guide rail upper platforms 403, operating rods 432 are screwed in the threaded holes, discs are arranged at two ends of each operating rod 432, and damping gaskets 433 are arranged on the lower surfaces of the discs, located at the bottom ends below the guide rail upper platforms 403, of the operating rods 432. The driving wheel 434 and the driven wheel 424 have the same tooth thickness and the same modulus, and the magnitude of the damping force is adjusted by adjusting the combination degree of the damping sheet 431 and the damping sleeve 425; when the wheels of the automobile are in active driving, the clutch 406 is disconnected, the wheels drive the rotary drum body 412 to rotate, the damping fins 431 are in contact with the damping sleeve 425 to generate damping force, the damping force is balanced with the driving force of the automobile, when the tires of the automobile are in driven driving, the clutch 406 is closed, the motor 405 is started, so that the rotary drum body 412 drives the wheels to rotate, and the damping fins 431 are separated from the damping sleeve 425 without damping force; the guide rail upper platform 403 is provided with a threaded hole, and is screwed into an operating rod 432 with a threaded end, a damping gasket 433 at the bottom end of a disc positioned below the guide rail upper platform 403 on the operating rod 432 is tightly attached to the surface of the base plate III 401, so that the position of the rotary drum body 412 can be adjusted to adapt to automobiles of different models by matching with the sliding block sliding rail device II 402.
As shown in fig. 14, the fan assembly 5 includes a fan base 501, the fan base 501 is installed on the ground, and three fans 502 are disposed on the upper surface of the fan base 501.
The use method of the whole automobile reliability test bed adopts the whole automobile reliability test bed and comprises the following steps:
step 1, determining the wheel track, the wheel base and the wheel size of an automobile according to the type of the automobile to be tested, positioning and determining the position of a rotary drum body 412 by adjusting a positioning operating rod 432 and a sliding rail sliding block device II 402 in a rotary drum assembly 4, hanging the automobile on a test bed, and enabling the wheel of the automobile to be tested to be located in a gap between adjacent hub bodies 412, so as to ensure that the lowest point of an automobile shell is higher than the highest point of the rotary drum body 412;
step 2, starting a vibration exciter I113 starting button of an X-Y axis vibration exciting assembly 1 on the master control platform to start the vibration exciter I113, applying X-Y axis vibration excitation to a structure above an assembly top plate 112 through four vibration exciters I113 in the X-Y axis vibration exciting assembly 1, generating X-Y axis vibration through interaction of the X-Y axis vibration exciters and a damping force of a spring I110, and simulating vibration from the front, the back and the side when the automobile meets a raised ground;
step 5, starting a starting button of a vibration exciter II 307 in the Z-axis vibration exciting assembly 3 on the master control table, applying Z-axis vibration excitation to the system through the vibration exciter II 307 in the Z-axis vibration exciting assembly 3, and generating Z-axis vibration by interaction with the damping force of a spring II 304; when the automobile wheel on the rotary drum body 412 is in active driving, the clutch 406 is disconnected, before a reliability test, the control rod 427 of the damping device is manually rotated to enable the damping sheet 431 on the damping slide block 428 to be in contact with the damping sleeve 425 on the driven shaft 435, an automobile engine is started to drive the automobile wheel to rotate, the automobile wheel rotates to drive the rotary drum body 412 to rotate, the rotary drum body 412 drives the driving shaft 407 to rotate, the driving shaft 407 drives the driven wheel 424 meshed with the driving shaft 407 to rotate through the driving wheel 434 on the driving shaft, the driven shaft 435 rotates, friction is generated between the damping sleeve 425 and the damping sheet 431, and therefore loads are brought to the tire of the automobile wheel in the process that the engine drives the automobile wheel to rotate, and the clutch is used for simulating the driving state of; according to the actual working condition, the distance between the rotary drum bodies 412 is adjusted to prevent the automobile from rushing out of the test bed in the test process; when the automobile tire on the wheel drum is driven, the clutch 406 is closed, the control rod 427 of the rotary damping device enables the damping sleeve 425 on the driven shaft 435 to be separated from the damping sheet 431 on the damping slide block 428, the motor 405 is started through the motor starting button on the master control platform, the output shaft of the motor 405 rotates to drive the shaft of the driving shaft 407 to rotate, and then the wheel drum body 412 on the driving shaft 407 is driven to rotate, and the wheel drum body 412 rotates to drive the automobile wheel to rotate, so that the driving force is brought to the driven rotating tire, and the state of the driven wheel 424 is simulated when the automobile runs;
and 6, manually adjusting the angle of the fan 502 according to experimental requirements, finally starting a fan starting button on the master control console to start the fan 502, and manually adjusting the wind direction and the wind power of the fan to simulate the wind resistance of the automobile in running.
Claims (6)
1. The test bed for the reliability of the whole automobile is characterized by comprising a plurality of X-Y axis excitation assemblies, a plurality of Z axis excitation assemblies, a plurality of lifting rotating assemblies, a plurality of rotary drum assemblies and a fan assembly, wherein every two X-Y axis excitation assemblies are installed in a butt joint mode through wide edges, the top of each X-Y axis excitation assembly is provided with the lifting rotating assembly, the top of each lifting rotating assembly is provided with the Z axis excitation assembly, the top of each Z axis excitation assembly is provided with the rotary drum assembly, the X-Y axis excitation assemblies, the Z axis excitation assemblies, the lifting rotating assemblies and the rotary drum assemblies form an integral main assembly, the X-Y axis excitation assemblies, the lifting assemblies, the Z axis excitation assemblies and the rotary drum assemblies are all installed below the ground, the upper surface of a bottom plate III of the rotary drum assembly is flush with the ground, and the fan assembly is installed on the ground, the lower surface of a fan base supporting leg of the fan assembly is flush with the ground;
the rotary drum component comprises a bottom plate III and guide rail upper platforms, the bottom plate III of the rotary drum component and a top plate II of a Z-axis excitation component are fixedly installed, slide rail slider devices II are symmetrically arranged on the upper surface of the bottom plate III along the length direction, two guide rail upper platforms are installed on the upper surfaces of sliders of the slide rail slider devices II, motor bases are installed at one ends of the upper surfaces of the two guide rail upper platforms, motors are fixedly installed on the motor bases, output shafts of the motors are connected with one ends of driving shafts through clutches, axial fixing pieces and keys, bearing base bases are installed on the upper surfaces of the two guide rail upper platforms, bearing bases I are installed on the upper surfaces of the bearing base, the other ends of the driving shafts penetrate through the bearing bases I, rotary drum front covers and rotary drum rear covers are installed through rotary drum keys, rotary drum bodies are installed between the rotary drum front covers and the, a bearing seat II is installed at the bottom of an inner cavity of a damping device box seat, a damping device middle section is fixedly installed at the top of the damping device box seat, three large through holes are formed on two opposite side walls at the joint of the damping device box seat and the damping device middle section, a driving bearing is installed in one of the large through holes, a driving shaft through cover is installed in the large through hole outside the driving bearing, a driving shaft gasket is installed between the driving shaft through cover and the driving bearing, a sealing ring is installed on the inner ring of the driving shaft through cover, the driving shaft penetrates through the driving shaft gasket, the sealing ring, the driving bearing, a driving shaft oil baffle disc, a driving wheel and the bearing seat II in sequence to be rotatably installed, driven shafts are installed in the two coaxially arranged large through holes through the driven bearing in a rotating mode, driven shaft cover covers are installed on the inner walls of the large through holes, a driven wheel and a damping sleeve are arranged on the excircle of the driven shaft, a driven shaft oil baffle disc is arranged between the driven wheel and one driven bearing and between the damping sleeve and the other driven bearing, two small through holes are formed on the other two opposite side walls at the joint of the damping device box seat and the middle section of the damping device, a control rod is fixedly arranged in each small through hole and is in threaded connection with a central threaded hole of a damping slide block, an upper cover of the damping device is fixedly arranged at the top of the middle section of the damping device, guide rods are fixedly arranged in the through holes of the middle section of the damping device and the damping device box seat and are perpendicular to the driving shaft, and the four guide rods are in threaded connection with four threaded, the damping slide block is characterized in that damping pieces are arranged on the arc surface of the damping slide block, threaded holes are formed in the guide rail upper platform, operating rods are screwed in the threaded holes, discs are arranged at two ends of each operating rod, and damping gaskets are arranged on the upper surfaces of the discs at the bottom ends of the operating rods.
2. The vehicle reliability test bed of claim 1, wherein: the X-Y axis excitation assembly comprises a bottom plate, the bottom plate is fixedly arranged below the ground, a guide rail base is arranged on the upper surface of the bottom plate along the length direction, short fixed steel frames are respectively arranged on the upper surfaces of the guide rail base, short slide rail slider devices I are arranged on the two short fixed steel frames, a long fixed steel frame is arranged on the upper surface of the bottom plate along the width direction, long slide rail slider devices I are arranged on the two long fixed steel frames, rod supporting seats are respectively arranged on the slider surfaces of the long slide rail slider devices I and the short slide rail slider devices I, a long round rod is arranged between the two rod supporting seats on the short slide rail slider devices I, a short round rod is arranged between the two rod supporting seats on the long slide rail slider devices I, two springs I and two spring bases are respectively arranged on the short round rod and the long round rod, one end of each spring I is connected with the spring base, and a vibration exciter I is arranged on the lower surface of the top plate of the assembly.
3. The vehicle reliability test bed of claim 1, wherein: the lifting rotating assembly comprises an assembly bottom plate, a lower fixed steel frame assembly and an upper fixed steel frame assembly, the assembly bottom plate of the lifting rotating assembly is fixedly installed with an assembly top plate of the X-Y-axis excitation assembly, the upper surface of the assembly bottom plate is provided with the lower fixed steel frame assembly, the lower fixed steel frame assembly comprises a lower outer fixed steel frame, a lower inner fixed steel frame and a lower short fixed steel frame, the lower outer fixed steel frame and the lower short fixed steel frame are connected end to end, a lower inner fixed steel frame is symmetrically arranged between the two lower short fixed steel frames, a lower outer slide rail slide block device and a lower inner slide rail slide block device are respectively installed on the lower outer fixed steel frame and the lower inner fixed steel frame, a lower outer shaft rolling support is installed at the top of a slide block of the lower outer slide rail slide block device, a rolling shaft I is installed between the two lower outer rolling shaft supports, and a lower inner shaft rolling shaft support is installed at, a rolling shaft II is arranged between two lower inner side shaft rolling shaft supports, the upper fixed steel frame component comprises an upper outer side fixed steel frame, an upper inner side fixed steel frame and an upper short fixed steel frame, the upper outer side fixed steel frame and the upper short fixed steel frame are connected end to end, an upper inner side fixed steel frame is symmetrically arranged between the two upper short fixed steel frames, the upper outer side fixed steel frame and the upper inner side fixed steel frame are respectively provided with an upper outer side slide rail sliding block device and an upper inner side slide rail sliding block device, the bottom of a sliding block of the upper outer side slide rail sliding block device is provided with an upper outer side shaft rolling support, a rolling shaft III is arranged between the two upper outer side rolling shaft supports, the bottom of a sliding block of the upper inner side slide rail sliding block device is provided with an upper inner side shaft rolling support, a rolling shaft IV is arranged between the two upper inner side shaft rolling supports, one end of the rolling shaft I is, one end of a rolling shaft II is connected with one end of a rolling shaft IV through a long rod III, the other end of the rolling shaft II is connected with the other end of the rolling shaft IV through a long rod IV, a stabilizing shaft is inserted into center holes of the long rod I, the long rod III, the long rod IV and the long rod II, a hydraulic cylinder bearing bottom plate is arranged on the upper surface of the assembly bottom plate, hydraulic cylinder bearing bases are symmetrically arranged on the upper surface of the hydraulic cylinder bearing bottom plate, a hydraulic cylinder is arranged on the upper surface of each hydraulic cylinder bearing base, hydraulic cylinder flanges are arranged at the tail ends of piston rods of the hydraulic cylinders, lifting plates are arranged on the upper surfaces of the two hydraulic cylinder flanges and the upper surface of an upper fixing steel frame, the lifting plates are fixedly arranged on the upper fixing steel frame and the hydraulic cylinder flanges, eyelet ball base plates are arranged at four corners of the lifting plates, eyelet balls are arranged on each, bearing inner race and swivel bearing seat of honour fixed mounting, the swivel bearing seat of honour passes through the key-type connection gear wheel, gear wheel top and I fixed mounting of roof, surface mounting has the motor backup pad on the lifter plate, and the motor fixed plate is installed at two motor backup pad tops, and the lower fixed surface of motor fixed plate installs step motor, and step motor output shaft runs through motor fixed plate part and passes through the key-type connection and gear wheel mesh's pinion.
4. The vehicle reliability test bed of claim 1, wherein: z axle excitation subassembly includes bottom plate I, Z axle excitation subassembly's bottom plate I and I fixed mounting of roof of lifting and drop rotating assembly, I upper surface four corners department fixed mounting of bottom plate has lower guide arm, and lower guide arm excircle cover is equipped with spring II and last guide arm, and II one end of spring support on the end flange of lower guide arm, and the other end supports on the terminal surface of last guide arm one end, goes up the end flange and II fixed mounting of roof of the guide arm other end, and the lower surface center department fixed mounting of roof II has II fixed plates of vibration exciter, and fixed mounting has vibration exciter II on II fixed plates of vibration exciter.
5. The vehicle reliability test bed of claim 1, wherein: the fan assembly comprises a fan base, the fan base is installed on the ground, and three fans are arranged on the upper surface of the fan base.
6. The use method of the vehicle reliability test bed of claim 1 is adopted, and the vehicle reliability test bed is characterized by comprising the following steps:
step 1, determining the wheel track, the wheel base and the wheel size of an automobile according to the type of the automobile to be tested, positioning and determining the position of a rotary drum body by adjusting a positioning operating rod and a slide rail slide block device II in a rotary drum assembly, hoisting the automobile on a test bed, and enabling the wheel of the automobile to be tested to be positioned in a gap between adjacent wheel hubs;
step 2, starting a vibration exciter I starting button of an X-Y axis vibration exciting assembly on the master control platform to start a vibration exciter I, applying X-Y axis vibration excitation to a structure above an assembly top plate through four vibration exciters I in the X-Y axis vibration exciting assembly, and generating X-Y axis vibration through interaction of the vibration exciters I and a damping force of a spring I to simulate vibration from the front, the back and the side when the automobile meets the raised ground;
step 3, starting an oil pump starting button on the master control platform, enabling a hydraulic cylinder of the lifting rotating assembly to work under the drive of the oil pump, and enabling a piston rod of the hydraulic cylinder to extend out of or retract back from a cylinder body of the hydraulic cylinder, so that lifting of the lifting plate is achieved, and further enabling a structure above the lifting plate to be lifted up or put down for simulating the state that partial wheels of the automobile are sunk into a pothole road surface or run on a raised road surface;
step 4, starting a stepping motor starting button of a lifting rotating assembly on the master control platform, enabling the stepping motor to work to drive a small gear to rotate, further enabling the small gear to drive a large gear to rotate, and driving a lifting plate of the lifting rotating assembly to rotate, so that a structure above the lifting plate completes rotating action and is used for simulating a driving state when the automobile wheel turns;
step 5, starting a starting button of a vibration exciter II in a Z-axis vibration exciting assembly on the master control platform, applying Z-axis vibration excitation to the system through the vibration exciter II in the Z-axis vibration exciting assembly, and generating Z-axis vibration by interacting with the damping force of a spring II; when the automobile wheel on the rotary drum body is actively driven, the clutch is disconnected, a control rod of the damping device is manually rotated to enable a damping sheet on the damping slide block to be in contact with a damping sleeve on a driven shaft before a reliability test, an automobile engine is started to drive the automobile wheel to rotate, the automobile wheel rotates to drive the drum body of the wheel to rotate, the rotary drum body drives the driving shaft to rotate, the driving shaft drives a driven wheel meshed with the driving shaft to rotate through a driving wheel on the driving shaft, the driven shaft rotates, friction is generated between the damping sleeve and the damping sheet, and therefore loads are brought to the wheel tire in the process that the engine drives the automobile wheel to rotate, and the driving state of the driving wheel is used for simulating the driving state; according to the actual working condition, the distance between the rotary drum bodies is adjusted to prevent the automobile from rushing out of the test bed in the test process; when the automobile tire on the wheel drum is driven, the clutch is closed, the control rod of the rotary damping device enables the damping sleeve on the driven shaft to be separated from the damping sheet on the damping slide block, the motor is started through the motor starting button on the master control platform, the output shaft of the motor rotates to drive the driving shaft to rotate, so that the wheel drum body on the driving shaft is driven to rotate, the wheel drum body rotates to drive the automobile wheel to rotate, and therefore, the driving force is brought to the driven rotating tire for simulating the state of the driven wheel when the automobile runs;
and 6, according to experimental requirements, after the angle of the fan is manually adjusted, starting a fan starting button on the master control console to start the fan, and manually adjusting the wind direction and the wind power of the fan to simulate the wind resistance of the automobile in running.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910321972.3A CN109900498B (en) | 2019-04-22 | 2019-04-22 | Automobile whole reliability test bed and use method |
| PCT/CN2019/084728 WO2020215344A1 (en) | 2019-04-22 | 2019-04-28 | Automotive vehicle reliability test bench and usage thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910321972.3A CN109900498B (en) | 2019-04-22 | 2019-04-22 | Automobile whole reliability test bed and use method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109900498A CN109900498A (en) | 2019-06-18 |
| CN109900498B true CN109900498B (en) | 2020-11-06 |
Family
ID=66956047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910321972.3A Active CN109900498B (en) | 2019-04-22 | 2019-04-22 | Automobile whole reliability test bed and use method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109900498B (en) |
| WO (1) | WO2020215344A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110908358B (en) * | 2019-11-01 | 2022-12-30 | 重庆新博智机电有限公司 | Fault diagnosis device for new energy automobile based on Internet of things |
| CN111693301B (en) * | 2020-06-19 | 2022-04-05 | 深圳市志留纪科技有限公司 | New energy automobile comprehensive properties tests rack |
| CN115502944A (en) * | 2022-11-10 | 2022-12-23 | 宝武集团马钢轨交材料科技有限公司 | Installation device and installation method for spoke plate roller driving oil cylinder of high-speed rail wheel rolling mill |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5402676A (en) * | 1992-02-28 | 1995-04-04 | Honda Giken Kogyo Kabushiki | Method and apparatus for inspecting various running control functions of a motorcar |
| DE10022355C2 (en) * | 2000-05-08 | 2003-03-13 | Audi Ag | dynamometer |
| KR101154514B1 (en) * | 2004-11-12 | 2012-06-13 | 비아이에이 | 6-axis road simulator test apparatus |
| CN101241046B (en) * | 2008-03-06 | 2010-11-10 | 广州大学 | Driveway analogue simulation test stand |
| CN101241036A (en) * | 2008-03-21 | 2008-08-13 | 苏州东菱振动试验仪器有限公司 | Jigging platform three-way excitation platform connecting mechanism |
| CN101776526A (en) * | 2010-01-26 | 2010-07-14 | 郭孔辉 | Kinematics and total working condition elastic tester of suspension bracket |
| ES2780676T3 (en) * | 2012-12-04 | 2020-08-26 | Saginomiya Seisakusho Inc | Test device |
| CN204214626U (en) * | 2014-11-11 | 2015-03-18 | 江苏新日电动车股份有限公司 | A kind of car load vibrations Road Simulation Test machine |
| CN108871723A (en) * | 2017-05-09 | 2018-11-23 | 王佳萍 | A kind of determination method and apparatus of automobile windage coefficient |
| CN206906031U (en) * | 2017-05-10 | 2018-01-19 | 天津市三众机械制造有限公司 | A kind of thump testing stand |
| CN108195599A (en) * | 2018-02-12 | 2018-06-22 | 王灿灿 | A kind of automobile vibration experimental rig |
| CN108225796A (en) * | 2018-04-11 | 2018-06-29 | 重庆工商职业学院 | A kind of parallel road analogy actuator configurations and its control method |
| CN108846147B (en) * | 2018-04-16 | 2022-07-22 | 清华大学苏州汽车研究院（相城） | Method for calculating and analyzing contribution of vibration excitation systems during vehicle working |
| CN109058713A (en) * | 2018-08-15 | 2018-12-21 | 中汽研（天津）汽车工程研究院有限公司 | A kind of vibration excitor lifting device for body mode test |
-
2019
- 2019-04-22 CN CN201910321972.3A patent/CN109900498B/en active Active
- 2019-04-28 WO PCT/CN2019/084728 patent/WO2020215344A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| CN109900498A (en) | 2019-06-18 |
| WO2020215344A1 (en) | 2020-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109900498B (en) | Automobile whole reliability test bed and use method | |
| CN109187056B (en) | Wheel suspension test bench with real road surface characteristics | |
| KR102676593B1 (en) | Fatigue test equipment for automobile chassis simulation road test | |
| CN107192563B (en) | Test bed for electric wheel suspension system of hub-driven electric automobile | |
| CN101718632B (en) | Multifunctional test bed for simulating condition by one-quarter suspension of vehicle | |
| CN106769120B (en) | Railway vehicle elastic wheel loading test bed | |
| CN105806633A (en) | Road simulation testbed for wheel | |
| CN108007701B (en) | Device for testing abrasion resistance of tire and impact resistance of hub | |
| CN101441135B (en) | Test device and test method of automobile steering knuckle | |
| CN110542567A (en) | method for simulating road surface impact load of automobile transmission system | |
| CN104865527A (en) | Test bench of wheel hub motor of mini electric vehicle | |
| CN112729822B (en) | Automobile transmission system testing device | |
| KR102628906B1 (en) | Loading system and test equipment for automobile chassis simulation road test | |
| CN102419262B (en) | Dynamic fatigue testing machine for rubber bumper block of road roller | |
| CN205120355U (en) | Rotatory oil blanket test bench | |
| CN205607638U (en) | Drive axle assembly detection device that operates | |
| CN104251781A (en) | Automotive power assembly suspension system durability test method | |
| CN106644526A (en) | System for real scattering behavior simulation of tire wear particles | |
| CN117723290A (en) | Electric automobile transmission system fault test bench | |
| CN201548409U (en) | Simulated condition multifunctional test bed of one-quarter suspension of vehicle | |
| CN108692962B (en) | Vehicle road simulation system | |
| CN201749027U (en) | Drive axle reliability test bed | |
| CN206410874U (en) | A kind of rail vehicle elastic wheel bracket loading test platform | |
| CN106153282B (en) | Automobile tire exciting device and method under the driving status of adjustable amplitude | |
| CN108731897B (en) | Device for measuring riding comfort of vehicle and using method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |