CN108181100B - Simulate the electric vehicle hydraulic buffer reliability test of actual condition load - Google Patents
Simulate the electric vehicle hydraulic buffer reliability test of actual condition load Download PDFInfo
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- CN108181100B CN108181100B CN201711485943.8A CN201711485943A CN108181100B CN 108181100 B CN108181100 B CN 108181100B CN 201711485943 A CN201711485943 A CN 201711485943A CN 108181100 B CN108181100 B CN 108181100B
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- 238000012360 testing method Methods 0.000 title claims abstract description 86
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 52
- 230000003287 optical effect Effects 0.000 claims abstract description 28
- 229910052742 iron Inorganic materials 0.000 claims abstract description 19
- 238000006073 displacement reaction Methods 0.000 claims description 53
- 238000004088 simulation Methods 0.000 claims description 24
- 230000001133 acceleration Effects 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 10
- 239000002828 fuel tank Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 239000012780 transparent material Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 241001416181 Axis axis Species 0.000 abstract 1
- 238000004458 analytical method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention belongs to damper reliability test technical fields, it is related to a kind of electric vehicle hydraulic buffer reliability test that can simulate actual condition load, overcomes the problem of current reliability test can not carry out reliability test to electric vehicle hydraulic damper；Including Vertical loading part, horizontal addload part, counterweight loading section, hydraulic part, temperature and humidity loading section；The axis of the vertical hydraulic cylinder of the Vertical loading part, the axis of No. 1 pull pressure sensor, the axis of vertical force application rod, the symmetrical center line of vertical support frame are conllinear, and perpendicular to the upper surface of ground black iron；The axis of the horizontal hydraulic cylinder of the horizontal addload part, the axis of No. 2 pull pressure sensor, straight optical axis axis collinear, and be parallel to the upper surface of ground black iron；The front fork symmetrical center line of the counterweight loading section, the axis of the force rod of counterweight loading section, counterweight loading section counterweight platform symmetrical middle line it is conllinear.
Description
Technical field
The invention belongs to damper reliability test technical fields, more particularly to one kind can simulate actual condition load
Electric vehicle hydraulic buffer reliability test.
Background technique
With the fast development of electric vehicle at home, electric vehicle hydraulic buffer is using very extensive.Electric vehicle is hydraulic to be subtracted
Shake the device critical component one of important as electric vehicle, and quality directly affects the comfortableness and security of electric vehicle.Expert learns
Person has carried out a large amount of research from model foundation, theory analysis, dynamic analysis, structural analysis etc. respectively, achieves weight
The research achievement wanted.However, the reliability test for electric vehicle hydraulic buffer critical component is extremely rare at home,
It is generally only the reliability test for carrying out electric vehicle user scene, this test can only be according to the regular return visit of enterprise marketing personnel
Or affiliated maintenance department, enterprise obtains fault data, the test data that this method obtains is by user, sales force, maintenance personal
Etc. human factors be affected, and inaccuracy, environment is unknown uncontrollable, therefore, develops one kind and can simulate actual condition and add
The electric vehicle hydraulic buffer reliability test of load, obtains the reliability of electric vehicle hydraulic buffer by reliability test
Test data provides basic basis for reliability improved design and is of great significance.
Summary of the invention
The technical problem to be solved by the present invention is to overcome current reliability test hydraulic to electric vehicle not subtracting
The problem of device carries out reliability test is shaken, a kind of electric vehicle hydraulic buffer reliability examination of simulation actual condition load is provided
Experiment device.
In order to solve the above technical problems, the present invention adopts the following technical scheme that realization, it is described with reference to the drawings as follows:
A kind of electric vehicle hydraulic buffer reliability test of simulation actual condition load, which includes hanging down
Straight loading section, horizontal addload part, counterweight loading section, hydraulic part, temperature and humidity loading section, the Vertical loading part
The axis of vertical hydraulic cylinder (2), No. 1 pull pressure sensor (4) axis, the axis of vertical force application rod (26), vertical support
The symmetrical center line of frame (29) is conllinear, and perpendicular to the upper surface of ground black iron (1)；The horizontal hydraulic cylinder of the horizontal addload part
(17) axis, the axis of No. 2 pull pressure sensor (16), straight optical axis (15) axis collinear, and be parallel to ground black iron (1)
Upper surface；Front fork (7) symmetrical center line of the counterweight loading section, the force rod (9) of counterweight loading section axis,
The symmetrical middle line of the counterweight platform (37) of counterweight loading section is conllinear.
Vertical loading part described in technical solution includes vertical hydraulic cylinder (2), Vertical loading support frame (3), No. 1 drawing
Pressure sensor (4), vertical force application rod (26), No. 2 displacement sensors (27), displacement sensor fixed ring (28), vertical support
Frame (29), vertical support rod (30), No. 2 linear bearings (33), jackscrew (34), locking nut (39)；
The Vertical loading support frame (3) is bolted on ground black iron (1)；
Through-hole is offered on the top plate of the Vertical loading support frame (3), for installing No. 2 linear bearings (33), the two
For interference fit installation；The brearing bore clearance fit of the axis of the vertical force application rod (26) and No. 2 linear bearings (33) is installed；
The upper end of No. 1 pull pressure sensor (4) is fixedly connected with the lower thread of vertical force application rod (26)；The vertical hydraulic
The projecting shaft of cylinder (2) and the lower end of No. 1 pull pressure sensor (4) are connected firmly by screw thread；The vertical hydraulic cylinder (2) and Horizon
Iron (1) is bolted connection；The vertical support frame (29) is y-type structure part, the jackshaft in vertical support frame (29)
Lower surface offers the threaded hole of the thread segment for screwing in vertical force application rod (26) upper end；In the vertical support frame (29)
Y type upper end offer through-hole, one is offered on the through-hole wall for screwing in the threaded holes of jackscrew (34)；The vertical branch
Strut (30) passes through the through-hole of vertical support frame (29) upper end, and is interference fit installation；The jackscrew (34) screws in vertical branch
In the threaded hole of support (29), and vertical support rod (30) are held out against, vertical support rod (30) is made to be fixed on vertical support frame (29)
On；The both ends of the vertical support rod (30) and the through-hole of hydraulic damper (6) lower end are coupled, and use locking nut
(39) fixed；
The left end through-hole of institute's displacement sensors fixed ring (28) covers the thread segment in vertical force application rod (26) upper end, when vertical
When the thread segment of straight force application rod (26) upper end screws in the threaded hole of vertical support frame (29) jackshaft, while displacement sensor is consolidated
Determine ring (28) to be fixed on vertical force application rod (26)；Institute's displacement sensors fixed ring (28) is stretched with No. 2 displacement sensors (27)
Shaft is fixed by threaded connection；The shell of No. 2 displacement sensors (27) is mounted by means of bolts on Vertical loading branch
The upper surface of the top plate of support (3).The axis of No. 2 displacement sensors (27) is parallel with the axis of vertical force application rod (26)；
No. 2 displacement sensors (27), No. 1 pull pressure sensor (4) are electrically connected with console (43) respectively.
Horizontal addload part described in technical solution includes rectangular retainer (8), No. 1 adjusting knob (11), No. 1 displacement
Sensor (12), bearing block support plate (13), bearing block (14), straight optical axis (15), No. 2 pull pressure sensor (16), level
Hydraulic cylinder (17), horizontal hydraulic cylinder support plate (18), No. 1 support frame (19), No. 2 support frames (20), No. 2 adjusting knobs (21),
Horizontal addload support frame (23), adjustment frame (24), No. 1 linear bearing (31), displacement sensor hold-down support (32), No. 1 locking
Bolt (35), No. 2 clamping screws (36)；
The horizontal hydraulic cylinder (17) is bolted on the cover top surface of horizontal hydraulic cylinder support plate (18)；It is described
The projecting shaft of horizontal hydraulic cylinder (17) and the right end of No. 2 pull pressure sensor (16) are connected firmly by screw thread；No. 2 pressures pass
The left end of sensor (16) and the right end of straight optical axis (15) are fixed by threaded connection；The straight optical axis (15) and No. 1 straight line
The inner hole clearance fit of bearing (31) is installed, and the straight optical axis (15) can be slided along the inner hole of linear bearing (31)；It is described straight
The inner hole interference fit of outer ring and bearing block (14) that spool holds (31) is installed；The bearing block (14) is bolted on
The cover top surface of bearing block support plate (13)；The left end of the straight optical axis (15) passes through the right side plate of experimental bench outer cover (10)
U-type groove, be fixedly connected with the threaded hole of the right side plate of rectangular retainer (8)；
The horizontal axis a of the adjustment frame (24), the thread segment at the both ends horizontal axis b are inserted into the front side board of rectangular retainer (8) with after
In the arc strip hole of side plate, and it is with 2 No. 1 adjusting knobs (11), 2 No. 2 adjusting knobs (21) that adjustment frame (24) are fixed
On rectangular retainer (8)；
The horizontal hydraulic cylinder support plate (18) is welded by two vertical axises, top plate；The horizontal hydraulic cylinder support
The two vertical axises of plate (18) are uniformly provided with the axis through-hole parallel with cover top surface in the axial direction；No. 2 supports
Frame (20) is welded by two vertical axises, bottom plate；The two vertical axises of No. 2 support frames (20) offer axis and bottom plate
The vertical through-hole in lower surface, and a threaded hole is offered on the hole wall；Two of the horizontal hydraulic cylinder support plate (18)
Vertical axis is inserted into the through-hole of the vertical axis of No. 2 support frames (20), and horizontal hydraulic cylinder is supported by No. 1 clamping screw (35)
Plate (18) and No. 2 support frames (20) are fixedly connected；The bottom plate of No. 2 support frames (20) is fixed on horizontal add by T-bolt
Carry the upper surface of support frame (23)；Horizontal addload support frame (23) lower end is fixed on ground black iron (1) by T type bolt；
The bearing block support plate (13) is welded by two vertical axises, top plate；The bearing block support plate (13)
Two vertical axises are uniformly provided with the axis through-hole parallel with cover top surface in the axial direction；No. 1 support frame (19) by
Two vertical axises, bottom plate are welded；The two vertical axises of No. 1 support frame (19) offer axis and lower surface of base plate
Vertical through-hole；The two vertical axises of the bearing block support plate (13) are inserted into the through-hole of the vertical axis of No. 1 support frame (19)
In, and bearing block support plate (13) and No. 1 support frame (19) are fixedly connected by No. 2 clamping screws (36)；No. 1 branch
The bottom plate of support (19) is fixed on the upper surface of horizontal addload support frame (23) by T-bolt；
The shell of No. 1 displacement sensor (12) is fixed on bearing seat supports by displacement sensor hold-down support (32)
The cover top surface of plate (13).The inner shaft left end of No. 1 displacement sensor (12) and one end of L type connection frame (53) pass through
Bolt is affixed；The other end of the L-type connection frame (53) is fixed by screws in straight optical axis (on 15).No. 1 displacement passes
The inner shaft axis of sensor (12) is parallel with the axis of straight optical axis (15).
No. 1 displacement sensor (12), No. 2 pull pressure sensor (16) are electrically connected with console (43) respectively.
Counterweight loading section described in technical solution includes force rod (9), counterweight platform (37), clump weight (38), acceleration
Sensor (25)；The via clearance of the vertical pivot of the force rod (9) and adjustment frame (24) cooperates；The lower end of the force rod (9)
It is connected firmly with front fork (7)；The upper end of the force rod (9) is connected firmly with counterweight platform (37) by screw thread, the counterweight platform (37) it is upper
Surface offers T-slot；The clump weight (38) is cuboid part, and is bolted on the upper table of counterweight platform (37)
Face；The acceleration transducer (25) is bolted on the lower surface of counterweight platform (37), the acceleration transducer (25)
It is electrically connected with console (39)；The acceleration signal of acceleration transducer (25) detection hydraulic damper (6).
Hydraulic part described in technical solution includes No. 1 servo valve (44), No. 2 servo valves (45), accumulator (46), pressure
Power table (47), check valve (48), hydraulic pump motor (49), hydraulic pump (50), oil filter (51), overflow valve (52), vertical hydraulic
Cylinder (2), horizontal hydraulic cylinder (17)；
The A mouth of the vertical hydraulic cylinder (2) couples with the A mouth of No. 2 servo valves (45), the B mouth of the vertical hydraulic cylinder (2)
Couple with the B mouth of No. 2 servo valves (45)；The P mouth of No. 2 servo valves (45) couples with the A mouth of check valve (48), and described No. 2
The T mouth of servo valve (45) couples with fuel tank；
The A mouth of the horizontal hydraulic cylinder (17) couples with the A mouth of No. 1 servo valve (44), the B of the horizontal hydraulic cylinder (17)
Mouth couples with the B mouth of No. 1 servo valve (44)；The P mouth of No. 1 servo valve (44) couples with the A mouth of check valve (48), and described 1
The T mouth of number servo valve (44) couples with fuel tank；The A mouth of the accumulator (46) couples with the A mouth of check valve (48)；The pressure
The A mouth of table (47) couples with the A mouth of check valve (48)；The B mouth of the check valve (48) couples with the B mouth of hydraulic pump (50)；
The A mouth of the overflow valve (52) couples with the B mouth of hydraulic pump (50)；The B mouth of the overflow valve (52) couples with fuel tank；It is described
The A mouth of hydraulic pump (50) couples with oil filter (51)；The motor shaft of the hydraulic pump motor (49) and the axis of hydraulic pump (50) are logical
Cross shaft coupling connection；
The hydraulic pump motor (49), No. 1 servo valve (44), No. 2 servo valves (45), pressure gauge (47), overflow valve (52)
It is electrically connected respectively with console (43).
Temperature and humidity loading device described in technical solution include temperature and humidity controller (40), No. 1 circulation pipe (41), No. 2 follow
Endless tube (42), testing stand hermatic door (5), testing stand outer cover (10)；
The testing stand outer cover (10) is made of top plate, left plate, right side plate, back side panel, and material is transparent material；Institute
Testing stand outer cover (10) is stated to be bolted in the cover top surface of Vertical loading support frame (3)；The testing stand sealing
Door (5) is coupled by hinge with experimental bench outer cover (10), and testing stand hermatic door (5) material is transparent material；
No. 2 circulation pipes (42) upper end is connected with experimental bench outer cover (10) top；No. 2 circulation pipe (42) lower ends with
The upper end of temperature and humidity controller (40) is connected；The upper end and experimental bench outer cover (10) lower part of No. 1 circulation pipe (41) are connected
It is logical；The lower end of No. 1 circulation pipe (41) and the lower end of temperature and humidity controller (40) are connected；The temperature and humidity controller
(40), No. 1 circulation pipe (41), No. 2 circulation pipes (42), testing stand outer cover (10) constitute closed-loop test environment and adjust channel；
The temperature and humidity controller (40) is electrically connected with console (43).
Vertical loading support frame described in technical solution (3) is welded by top plate, left plate, right side plate.
The structural member that adjustment frame described in technical solution (24) is made of horizontal axis a, horizontal axis b and vertical pivot opens up among vertical pivot
There is through-hole c, the axis of through-hole c is vertical with the axis of horizontal axis a, horizontal axis b, and horizontal axis a is parallel with the axis of horizontal axis b.
Rectangular retainer (8) described in technical solution is welded by top plate and bottom plate, right side plate, front side board, back side panel
Structural member, the front side board of the rectangular retainer (8) and back side panel respectively open up that there are two arc strip holes；The rectangular retainer
(8) top plate and bottom plate offers U-type groove；Threaded hole is offered among the right side plate of the rectangular retainer (8).
Compared with prior art the beneficial effects of the present invention are:
1. the electric vehicle hydraulic buffer reliability test of simulation actual condition load of the present invention is using vertical
Straight hydraulic cylinder, vertical force application rod, horizontal hydraulic cylinder and straight optical axis carry out simulating practical work to tested electric vehicle hydraulic buffer
The reliability test of condition load, and carries out real-time failure data acquisition, be the Reliability modeling in later period, reliability growth, can
Practical true basic fault data is provided by property Curve guide impeller and reliability prediction, substantially reduces data acquisition time.
2. the electric vehicle hydraulic buffer reliability test of simulation actual condition load of the present invention is using temperature
Humidity controller realizes the simulation loading of experimental enviroment with circulating line.When test, temperature and humidity loading device can be according to reality
Border operating condition adjusts experimental enviroment temperature and humidity, while test parameters can be stored, so as to subsequent inquiry and analysis.
3. the electric vehicle hydraulic buffer reliability test of simulation actual condition load of the present invention is using rotation
The mode that tight adjusting knob makes adjustment frame be fixed on rectangular retainer controls the inclination angle of electric vehicle hydraulic damper and horizontal plane
Degree simulates the tilt angle of electric vehicle hydraulic buffer in real work, makes reliability test closer to real working condition.
Match 4. the electric vehicle hydraulic buffer reliability test of simulation actual condition load of the present invention uses
The self weight of pouring weight loading simulation electric vehicle and loading capacity make reliability test result closer to real working condition.
5. the electric vehicle hydraulic buffer reliability test of simulation actual condition load of the present invention adapts to model
It encloses that comparison is wide, can be tested for the hydraulic buffer of different model, experimental enviroment temperature and humidity is controllable, need to only adjust hydraulic
The electric vehicle hydraulic buffer progress that the tilt angle of damper and vertical, horizontal addload part can carry out to various models can
It is tested by property, embodies the flexibility and versatility of this pilot system.
6. the electric vehicle hydraulic buffer reliability test of simulation actual condition load of the present invention passes through drawing
Pressure sensor, displacement sensor realize real time monitoring and closed-loop control and feedback, Lai Tigao mould to test process real-time monitoring
The precision of quasi- actual condition load.The dynamic force parameter of load is shown on the display interface of console simultaneously.
Detailed description of the invention
The present invention will be further described below with reference to the drawings:
Fig. 1 is the electric vehicle hydraulic buffer reliability test structure of simulation actual condition load of the present invention
The whole perspective view of composition；
Fig. 2 is water in the electric vehicle hydraulic buffer reliability test of simulation actual condition load of the present invention
The perspective view of flat loading section；
Fig. 3 is to match in the electric vehicle hydraulic buffer reliability test of the present invention for simulating actual condition load
Install partial, diagrammatic view additional again；
Fig. 4 is vertical in the electric vehicle hydraulic buffer reliability test of simulation actual condition load of the present invention
The partial view of straight loading section；
Fig. 5 is to adjust in the electric vehicle hydraulic buffer reliability test of the present invention for simulating actual condition load
The cross-sectional view of whole frame；
Fig. 6 is liquid in the electric vehicle hydraulic buffer reliability test of simulation actual condition load of the present invention
Press system principle schematic diagram.
In figure: 1. ground black irons, 2. vertical hydraulic cylinders, 3. Vertical loading support frames, No. 4.1 pull pressure sensor, 5. experiments
Platform hermatic door, 6. hydraulic damper, 7. front forks, 8. rectangular retainers, 9. force rods, No. 11.1 adjusting knobs, No. 12.1 displacements
Sensor, 13. bearing block support plates, 14. bearing blocks, 15. straight optical axis, No. 16.2 pull pressure sensor, 17. horizontal hydraulic pressures
Cylinder, 18. horizontal hydraulic cylinder support plates, No. 19.1 support frames, No. 20.2 support frames, No. 21.2 adjusting knobs, 23. horizontal addloads
Support frame, 24. adjustment frames, 25. acceleration transducers, 26. vertical force application rods, No. 27.2 displacement sensors, 28. displacement sensings
Device fixed ring .29. vertical support frame, 30. vertical support rods, No. 31.1 linear bearings, 32. displacement sensor hold-down supports,
No. 33.2 linear bearings, 34. jackscrews, No. 35.1 clamping screws, No. 36.2 clamping screws, 37. counterweight platforms, 38. clump weights, 39.
Locking nut, 40. temperature and humidity controllers, No. 41.1 circulation pipes, No. 42.2 circulation pipes, 43. consoles, No. 44.1 servo valves,
No. 45.2 servo valves, 46. accumulators, 47. pressure gauges, 48. check valves, 49. hydraulic pump motors, 50. hydraulic pumps, 51. oil strains
Device, 52. overflow valves, 53.L type connection frame.
Specific embodiment
The present invention is explained in detail with reference to the accompanying drawing:
It will be appreciated that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
Its embodiment, shall fall within the protection scope of the present invention:
Refering to fig. 1, the electric vehicle hydraulic buffer reliability test of simulation actual condition load of the present invention
Including Vertical loading part, horizontal addload part, counterweight loading section, hydraulic part, temperature and humidity loading section.It is described vertically to add
Carry the axis of the vertical hydraulic cylinder 2 of part, axis, the axis of vertical force application rod 26, vertical support of No. 1 pull pressure sensor 4
The symmetrical center line of frame 29 is conllinear, and perpendicular to the upper surface of ground black iron 1.The horizontal hydraulic cylinder 17 of the horizontal addload part
Axis, the axis of No. 2 pull pressure sensor 16, straight optical axis 15 axis collinear, and be parallel to the upper surface of ground black iron 1.
7 symmetrical center line of front fork of the counterweight loading section, the axis of the force rod 9 of counterweight loading section, counterweight loading section
The symmetrical middle line of counterweight platform 37 is conllinear.
One, Vertical loading part
Refering to fig. 1, Fig. 4, the Vertical loading part include 3, No. 1 vertical hydraulic cylinder 2, Vertical loading support frame tension and compression
It is force snesor 4,26, No. 2 displacement sensors 27 of vertical force application rod, displacement sensor fixed ring 28, vertical support frame 29, vertical
Support rod 30, No. 2 linear bearings 33, jackscrew 34, locking nuts 39.
Refering to fig. 1, Fig. 4, the Vertical loading support frame 3 are welded by top plate, left plate, right side plate；It is described vertical
Load support frame 3 is bolted on ground black iron 1；
Refering to fig. 1, Fig. 4 offers through-hole on the top plate of the Vertical loading support frame 3, for installing No. 2 linear axis
33 are held, the two is interference fit installation；The axis of the vertical force application rod 26 and the brearing bore gap of No. 2 linear bearings 33 are matched
Close installation, brearing bore sliding of the vertical force application rod 26 in No. 2 linear bearings 33；The upper end of No. 1 pull pressure sensor 4 with
The lower end of vertical force application rod 26 is fixed by threaded connection；The projecting shaft of the vertical hydraulic cylinder 2 and No. 1 pull pressure sensor 4
Lower end connected firmly by screw thread；The vertical hydraulic cylinder 2 is bolted with ground black iron 1 to be coupled.The vertical support frame 29
For y-type structure part, the screw thread for screwing in vertical 26 upper end of force application rod is offered in the jackshaft lower surface of vertical support frame 29
The threaded hole of section；Through-hole is offered in the Y type upper end of the vertical support frame 29, one is offered on the through-hole wall for revolving
Enter the threaded hole of jackscrew 34.The vertical support rod 30 passes through the through-hole of 29 upper end of vertical support frame, and is interference fit installation；
The jackscrew 34 screws in the threaded hole of vertical support frame 29, and holds out against vertical support rod 30, is fixed on vertical support rod 30
On vertical support frame 29.The both ends of the vertical support rod 30 and the through-hole of 6 lower end of hydraulic damper are coupled, and with lock
Tight nut 39 is fixed.
Refering to fig. 1, Fig. 4, the left end through-hole of institute's displacement sensors fixed ring 28 cover the spiral shell in vertical 26 upper end of force application rod
Line section is passed when the thread segment of vertical 26 upper end of force application rod screws in the threaded hole of 29 jackshaft of vertical support frame, while displacement
Sensor fixed ring 28 is fixed on vertical force application rod 26；Institute's displacement sensors fixed ring 28 and No. 2 displacement sensors 27 stretch out
Axis is fixed by threaded connection；The shell of No. 2 displacement sensors 27 is mounted by means of bolts on Vertical loading support frame 3
Top plate upper surface.The axis of No. 2 displacement sensors 27 is parallel with the axis of vertical force application rod 26.No. 2 displacements
27, No. 1 pull pressure sensor 4 of sensor are electrically connected with console 43 respectively.
Two, horizontal addload part
Refering to fig. 1, Fig. 2, Fig. 3, the horizontal addload part include the adjusting knob 11,1 of rectangular retainer 8,1 position
Displacement sensor 12, bearing block support plate 13, bearing block 14,15, No. 2 pull pressure sensor 16 of straight optical axis, horizontal hydraulic cylinder 17,
20, No. 2 adjusting knobs 21 of the support frame of support frame 19,2 of horizontal hydraulic cylinder support plate 18,1, are adjusted horizontal addload support frame 23
24, No. 1 linear bearings 31 of whole frame, the clamping screw 36 of clamping screw 35,2 of displacement sensor hold-down support 32,1.
Refering to fig. 1, Fig. 2, the horizontal hydraulic cylinder 17 are bolted on the top plate of horizontal hydraulic cylinder support plate 18
Surface.The projecting shaft of the horizontal hydraulic cylinder 17 and the right end of No. 2 pull pressure sensor 16 are connected firmly by screw thread；No. 2 drawings
The left end of pressure sensor 16 and the right end of straight optical axis 15 are fixed by threaded connection；Straight optical axis 15 and No. 1 straight line
The inner hole clearance fit of bearing 31 is installed, and the straight optical axis 15 can be slided along the inner hole of linear bearing 31；The linear bearing
31 outer ring and the inner hole of bearing block 14 are interference fitted and install；The bearing block 14 is bolted on bearing block support plate
13 cover top surface.The structure that the rectangular retainer 8 is welded by top plate and bottom plate, right side plate, front side board, back side panel
Part, the front side board of the rectangular retainer 8 and back side panel respectively open up that there are two arc strip holes；The top of the rectangular retainer 8
Plate, bottom plate offer U-type groove；Threaded hole is offered among the right side plate of the rectangular retainer 8.A left side for the straight optical axis 15
The U-type groove for holding the right side plate across experimental bench outer cover 10, is fixedly connected with the threaded hole of the right side plate of rectangular retainer 8；
Refering to Fig. 3, Fig. 5, the structural member that the adjustment frame 24 is made of horizontal axis a, horizontal axis b and vertical pivot is opened up among vertical pivot
There is through-hole c, the axis of through-hole c is vertical with the axis of horizontal axis a, horizontal axis b, and horizontal axis a is parallel with the axis of horizontal axis b；When installation, institute
The thread segment of the horizontal axis a, the both ends horizontal axis b that state adjustment frame 24 are inserted into the front side board of rectangular retainer 8 and the arc strip of back side panel
Kong Zhong, and adjustment frame 24 is fixed on rectangular retainer 8 with 2 No. 1 adjusting knobs, 11,2 No. 2 adjusting knobs 21.Test
Before, first unclamp 2 No. 1 adjusting knobs, 11,2 No. 2 adjusting knobs 21 and locking nut 39.Further according to actual use operating condition, adjust
The tilt angle of whole hydraulic damper 6 and horizontal plane；After adjusting, then screw 2 No. 1 adjusting knobs, 11,2 No. 2 adjustings rotations
Button 21 is fixed on adjustment frame 24 on rectangular retainer 8, and screwing locking nut 39 makes hydraulic damper 6 and vertical support rod 30
It is fixed.
Refering to fig. 1, the horizontal hydraulic cylinder support plate 18 is welded by two vertical axises, top plate；The horizontal hydraulic pressure
The two vertical axises of cylinder support plate 18 are uniformly provided with the axis through-hole parallel with cover top surface in the axial direction.Described No. 2
Support frame 20 is welded by two vertical axises, bottom plate；The two vertical axises of No. 2 support frames 20 offer axis and bottom
The vertical through-hole in plate lower surface, and a threaded hole is offered on the hole wall.Before test, according to test requirements document, the level
The two vertical axises of hydraulic cylinder support plate 18 are inserted into the through-hole of the vertical axis of No. 2 support frames 20, after adjusting height, pass through 1
Number clamping screw 35 is fixedly connected horizontal hydraulic cylinder support plate 18 and No. 2 support frame 20；The bottom plate of No. 2 support frames 20 is logical
Cross the upper surface that T-bolt is fixed on horizontal addload support frame 23.23 lower end of horizontal addload support frame is solid by T-bolt
It is scheduled on ground black iron 1.
Refering to fig. 1, Fig. 2, the bearing block support plate 13 are welded by two vertical axises, top plate.The bearing block branch
The two vertical axises of fagging 13 are uniformly provided with the axis through-hole parallel with cover top surface in the axial direction.No. 1 support
Frame 19 is welded by two vertical axises, bottom plate；The two vertical axises of No. 1 support frame 19 offer under axis and bottom plate
The vertical through-hole in surface；The two vertical axises of the bearing block support plate 13 are inserted into the through-hole of the vertical axis of No. 1 support frame 19,
And bearing block support plate 13 and No. 1 support frame 19 is fixedly connected by No. 2 clamping screws 36；The bottom of No. 1 support frame 19
Plate is fixed on the upper surface of horizontal addload support frame 23 by T type bolt.
Refering to fig. 1, the shell of Fig. 2, No. 1 displacement sensor 12 are fixed on by displacement sensor hold-down support 32
The cover top surface of bearing block support plate 13.The inner shaft left end of No. 1 displacement sensor 12 and one end of L-type connection frame 53 are logical
It is affixed to cross bolt；The other end of the L-type connection frame 53 is fixed by screws on straight optical axis 15.No. 1 displacement sensing
The inner shaft axis of device 12 is parallel with the axis of straight optical axis 15.12, No. 2 pull pressure sensor 16 of No. 1 displacement sensor with
Console 43 is electrically connected.
Three, counterweight loading section
Refering to fig. 1, Fig. 3, Fig. 5, the counterweight loading section include force rod 9, counterweight platform 37, clump weight 38, acceleration
Sensor 25；The via clearance of the force rod 9 and the vertical pivot of adjustment frame 24 cooperates；The lower end of the force rod 9 and front fork 7 are solid
Connection；The upper end of the force rod 9 is connected firmly with counterweight platform 37 by screw thread, and the upper surface of the counterweight platform 37 offers T-slot；Institute
Stating clump weight 38 is cuboid part, and is bolted on the upper surface of counterweight platform 37；When test, according to electric vehicle weight
And the electric vehicle-mounted mountable multiple clump weights 38 of weight.The acceleration transducer 25 is bolted under counterweight platform 37
Surface, the acceleration transducer 25 are electrically connected with console 39；The acceleration transducer 25 detects adding for hydraulic damper 6
Speed signal.
Four, hydraulic part
Refering to fig. 1, Fig. 6, the hydraulic part include No. 1 servo valve 44, No. 2 servo valves 45, accumulators 46, pressure gauge
47, check valve 48, hydraulic pump motor 49, hydraulic pump 50, oil filter 51, overflow valve 52, vertical hydraulic cylinder 2, horizontal hydraulic cylinder 17.
Refering to Fig. 6, the A mouth of the vertical hydraulic cylinder 2 couples with the A of No. 2 servo valves 45 mouth, the B of the vertical hydraulic cylinder 2
Mouth couples with the B of No. 2 servo valves 45 mouth；The P mouth of No. 2 servo valves 45 couples with the A of check valve 48 mouth, No. 2 servos
The T mouth of valve 45 couples with fuel tank；
Refering to Fig. 6, the A mouth of the horizontal hydraulic cylinder 17 couples with the A of No. 1 servo valve 44 mouth, the horizontal hydraulic cylinder 17
B mouth couple with the B of No. 1 servo valve 44 mouth；The P mouth of No. 1 servo valve 44 couples with the A of check valve 48 mouth, and described No. 1
The T mouth of servo valve 44 couples with fuel tank；The A mouth of the accumulator 46 couples with the A of check valve 48 mouth；The A of the pressure gauge 47
Mouth couples with the A of check valve 48 mouth；The B mouth of the check valve 48 couples with the B of hydraulic pump 50 mouth；The A of the overflow valve 52
Mouth couples with the B of hydraulic pump 50 mouth；The B mouth of the overflow valve 52 couples with fuel tank；The A mouth and oil filter of the hydraulic pump 50
51 connections.The motor shaft of the hydraulic pump motor 49 is coupled with the axis of hydraulic pump 50 by shaft coupling.
Refering to fig. 1, Fig. 6, the hydraulic pump motor 49,1 servo valve 44,2 servo valve 45, pressure gauge 47, overflow valve
52 are electrically connected with console 43 respectively.
Five, temperature and humidity loading device
Refering to fig. 1, the temperature and humidity loading device include the circulation pipe 41,2 of temperature and humidity controller 40,1 circulation pipe 42,
Testing stand hermatic door 5, testing stand outer cover 10.
Refering to fig. 1, the testing stand outer cover 10 is made of top plate, left plate, right side plate, back side panel, and material is transparent
Material.The testing stand outer cover 10 is bolted in the cover top surface of Vertical loading support frame 3.The testing stand is close
Closure door 5 is coupled by hinge with experimental bench outer cover 10, and 5 material of testing stand hermatic door is transparent material, convenient for observation.Test
When, testing stand hermatic door 5 is closed, and the top plate of testing stand hermatic door 5 and testing stand outer cover 10, Vertical loading support frame 3, which is formed, to be sealed
Close space.
Refering to fig. 1,42 upper end of No. 2 circulation pipes is connected with 10 top of experimental bench outer cover；No. 2 42 lower ends of circulation pipe with
The upper end of temperature and humidity controller 40 is connected；The upper end and 10 lower part of experimental bench outer cover of No. 1 circulation pipe 41 are connected；It is described
The lower end of No. 1 circulation pipe 41 and the lower end of temperature and humidity controller 40 are connected.When test, the temperature and humidity controller 40,1 is followed
41, No. 2 circulation pipes 42 of endless tube, testing stand outer cover 10 constitute closed-loop test environment and adjust channel.The temperature and humidity controller 40 with
Console 43 is electrically connected.
The working principle of the electric vehicle hydraulic buffer reliability test of the simulation actual condition load:
Refering to fig. 1, the load schematic diagram to hydraulic damper 6 is given in figure, first installation Vertical loading part, guarantee
The axis of vertical hydraulic cylinder 2, the axis of No. 1 pull pressure sensor 4, the axis of vertical force application rod 26, vertical support frame 29 pair
Claim centerline collineation, and perpendicular to the upper surface of ground black iron 1；Secondly, installation horizontal addload part, guarantees horizontal hydraulic cylinder 17
Axis, the axis of No. 2 pull pressure sensor 16, the axis of straight optical axis 15, rectangular retainer 8 centerline collineation, and it is parallel
In the upper surface of ground black iron 1；Hydraulic damper 6, front fork 7 are installed again, adjust the test tilt angle of hydraulic damper 6；Pacify again
Clump weight 38 is installed according to electric vehicle self weight and loading capacity in assembly reloading part；Temperature and humidity loading device is installed again.Test
Before, the phases such as loading force size and counterweight are arranged in the operation interface according to the loading spectrum of the practical driving conditions of electric vehicle in console 43
Test parameters is closed, starts to test.In test, the various sensors in testing stand acquire corresponding signal, and are sent to processor in time
Signal processing is carried out, and is timely feedbacked to corresponding executive component, forms closed-loop control, and record corresponding test data.Test
Afterwards, it shutoff operation program and cuts off the power.
Claims (8)
1. a kind of electric vehicle hydraulic buffer reliability test of simulation actual condition load, which includes vertical
Loading section, horizontal addload part, counterweight loading section, hydraulic part, temperature and humidity loading section, which is characterized in that described to hang down
The axis of the vertical hydraulic cylinder (2) of straight loading section, the axis of No. 1 pull pressure sensor (4), vertical force application rod (26) axis
Line, the symmetrical center line of vertical support frame (29) are conllinear, and perpendicular to the upper surface of ground black iron (1)；The horizontal addload part
The axis of horizontal hydraulic cylinder (17), the axis of No. 2 pull pressure sensor (16), straight optical axis (15) axis collinear, and it is flat
Row is in the upper surface of ground black iron (1)；Front fork (7) symmetrical center line, the stress of counterweight loading section of the counterweight loading section
Axis, the symmetrical middle line of the counterweight platform (37) of counterweight loading section of bar (9) are conllinear；
The horizontal addload part includes rectangular retainer (8), No. 1 adjusting knob (11), No. 1 displacement sensor (12), bearing
Seat supports plate (13), bearing block (14), straight optical axis (15), No. 2 pull pressure sensor (16), horizontal hydraulic cylinder (17), level
Hydraulic cylinder support plate (18), No. 1 support frame (19), No. 2 support frames (20), No. 2 adjusting knobs (21), horizontal addload support frames
(23), adjustment frame (24), No. 1 linear bearing (31), displacement sensor hold-down support (32), No. 1 clamping screw (35), No. 2 locks
Tight bolt (36)；
The horizontal hydraulic cylinder (17) is bolted on the cover top surface of horizontal hydraulic cylinder support plate (18)；The level
The projecting shaft of hydraulic cylinder (17) and the right end of No. 2 pull pressure sensor (16) are connected firmly by screw thread；No. 2 pull pressure sensor
(16) right end of left end and straight optical axis (15) is fixed by threaded connection；The straight optical axis (15) and No. 1 linear bearing
(31) inner hole clearance fit installation, the straight optical axis (15) can be slided along the inner hole of linear bearing (31)；The linear axis
The inner hole interference fit of the outer ring and bearing block (14) of holding (31) is installed；The bearing block (14) is bolted on bearing block
The cover top surface of support plate (13)；The left end of the straight optical axis (15) passes through the U-shaped of the right side plate of experimental bench outer cover (10)
Slot is fixedly connected with the threaded hole of the right side plate of rectangular retainer (8)；
The horizontal axis a of the adjustment frame (24), the thread segment at the both ends horizontal axis b are inserted into the front side board and back side panel of rectangular retainer (8)
Arc strip hole in, and with 2 No. 1 adjusting knobs (11), 2 No. 2 adjusting knobs (21) adjustment frame (24) side of being fixed on
On shape retainer (8)；
The horizontal hydraulic cylinder support plate (18) is welded by two vertical axises, top plate；The horizontal hydraulic cylinder support plate
(18) two vertical axises are uniformly provided with the axis through-hole parallel with cover top surface in the axial direction；No. 2 support frames
(20) it is welded by two vertical axises, bottom plate；The two vertical axises of No. 2 support frames (20) offer under axis and bottom plate
The vertical through-hole in surface, and a threaded hole is offered on the hole wall；Two of the horizontal hydraulic cylinder support plate (18) are hung down
D-axis is inserted into the through-hole of the vertical axis of No. 2 support frames (20), by No. 1 clamping screw (35) horizontal hydraulic cylinder support plate
(18) it is fixedly connected with No. 2 support frames (20)；The bottom plate of No. 2 support frames (20) is fixed on horizontal addload by T-bolt
The upper surface of support frame (23)；Horizontal addload support frame (23) lower end is fixed on ground black iron (1) by T-bolt；
The bearing block support plate (13) is welded by two vertical axises, top plate；Two of the bearing block support plate (13)
Vertical axis is uniformly provided with the axis through-hole parallel with cover top surface in the axial direction；No. 1 support frame (19) is by two
Vertical axis, bottom plate are welded；It is vertical with lower surface of base plate that the two vertical axises of No. 1 support frame (19) offer axis
Through-hole；The two vertical axises of the bearing block support plate (13) are inserted into the through-hole of the vertical axis of No. 1 support frame (19), and are passed through
No. 2 clamping screws (36) are fixedly connected bearing block support plate (13) and No. 1 support frame (19)；No. 1 support frame (19)
Bottom plate is fixed on the upper surface of horizontal addload support frame (23) by T-bolt；
The shell of No. 1 displacement sensor (12) is fixed on bearing block support plate by displacement sensor hold-down support (32)
(13) cover top surface；The inner shaft left end of No. 1 displacement sensor (12) and the one end of L-type connection frame (53) pass through bolt
It is affixed；The other end of the L-type connection frame (53) is fixed by screws in straight optical axis (on 15)；No. 1 displacement sensor
(12) inner shaft axis is parallel with the axis of straight optical axis (15)；
No. 1 displacement sensor (12), No. 2 pull pressure sensor (16) are electrically connected with console (43) respectively.
2. a kind of electric vehicle hydraulic buffer reliability test dress of simulation actual condition load according to claim 1
It sets, which is characterized in that the Vertical loading part includes vertical hydraulic cylinder (2), Vertical loading support frame (3), No. 1 pressure biography
Sensor (4), vertical force application rod (26), No. 2 displacement sensors (27), displacement sensor fixed ring (28), vertical support frame (29),
Vertical support rod (30), No. 2 linear bearings (33), jackscrew (34), locking nut (39)；
The Vertical loading support frame (3) is bolted on ground black iron (1)；
Through-hole is offered on the top plate of the Vertical loading support frame (3), for installing No. 2 linear bearings (33), the two was
It is full of and is coupled；The brearing bore clearance fit of the axis of the vertical force application rod (26) and No. 2 linear bearings (33) is installed；It is described
The upper end of No. 1 pull pressure sensor (4) is fixedly connected with the lower thread of vertical force application rod (26)；The vertical hydraulic cylinder (2)
Projecting shaft and the lower end of No. 1 pull pressure sensor (4) connected firmly by screw thread；The vertical hydraulic cylinder (2) and ground black iron (1) are logical
Bolt is crossed to be fixedly connected；The vertical support frame (29) is y-type structure part, is opened in the jackshaft lower surface of vertical support frame (29)
Threaded hole equipped with the thread segment for screwing in vertical force application rod (26) upper end；In the Y type upper end of the vertical support frame (29)
Through-hole is offered, one is offered on the through-hole wall for screwing in the threaded hole of jackscrew (34)；The vertical support rod (30)
Through-hole across vertical support frame (29) upper end, and be interference fit installation；The jackscrew (34) screws in vertical support frame (29)
Threaded hole in, and hold out against vertical support rod (30), be fixed on vertical support rod (30) on vertical support frame (29)；It is described to hang down
The both ends of support bars (30) and the through-hole of hydraulic damper (6) lower end are coupled, and fixed with locking nut (39)；
The left end through-hole of institute's displacement sensors fixed ring (28) covers the thread segment in vertical force application rod (26) upper end, applies when vertically
When the thread segment of power bar (26) upper end screws in the threaded hole of vertical support frame (29) jackshaft, while displacement sensor fixed ring
(28) it is fixed on vertical force application rod (26)；Institute's displacement sensors fixed ring (28) and No. 2 displacement sensor (27) projecting shafts
It is fixed by threaded connection；The shell of No. 2 displacement sensors (27) is mounted by means of bolts on Vertical loading support frame
(3) upper surface of top plate；The axis of No. 2 displacement sensors (27) is parallel with the axis of vertical force application rod (26)；
No. 2 displacement sensors (27), No. 1 pull pressure sensor (4) are electrically connected with console (43) respectively.
3. a kind of electric vehicle hydraulic buffer reliability test dress of simulation actual condition load according to claim 1
It sets, which is characterized in that
The counterweight loading section includes force rod (9), counterweight platform (37), clump weight (38), acceleration transducer (25)；It is described
The via clearance of force rod (9) and the vertical pivot of adjustment frame (24) cooperates；The lower end of the force rod (9) is connected firmly with front fork (7)；Institute
The upper end for stating force rod (9) is connected firmly with counterweight platform (37) by screw thread, and the upper surface of the counterweight platform (37) offers T-slot；
The clump weight (38) is cuboid part, and is bolted on the upper surface of counterweight platform (37)；The acceleration sensing
Device (25) is bolted on the lower surface of counterweight platform (37), and the acceleration transducer (25) is electrically connected with console (39)
It connects；The acceleration signal of acceleration transducer (25) detection hydraulic damper (6).
4. a kind of electric vehicle hydraulic buffer reliability test dress of simulation actual condition load according to claim 1
It sets, which is characterized in that the hydraulic part includes No. 1 servo valve (44), No. 2 servo valves (45), accumulator (46), pressure gauge
(47), check valve (48), hydraulic pump motor (49), hydraulic pump (50), oil filter (51), overflow valve (52), vertical hydraulic cylinder
(2), horizontal hydraulic cylinder (17)；
The A mouth of the vertical hydraulic cylinder (2) couples with the A mouth of No. 2 servo valves (45), the B mouth and 2 of the vertical hydraulic cylinder (2)
The B mouth connection of number servo valve (45)；The P mouth of No. 2 servo valves (45) couples with the A mouth of check valve (48), No. 2 servos
The T mouth of valve (45) couples with fuel tank；
The A mouth of the horizontal hydraulic cylinder (17) couples with the A mouth of No. 1 servo valve (44), the B mouth of the horizontal hydraulic cylinder (17) with
The B mouth connection of No. 1 servo valve (44)；The P mouth of No. 1 servo valve (44) couples with the A mouth of check valve (48), and described No. 1 is watched
The T mouth for taking valve (44) couples with fuel tank；The A mouth of the accumulator (46) couples with the A mouth of check valve (48)；The pressure gauge
(47) A mouth couples with the A mouth of check valve (48)；The B mouth of the check valve (48) couples with the B mouth of hydraulic pump (50)；It is described
The A mouth of overflow valve (52) couples with the B mouth of hydraulic pump (50)；The B mouth of the overflow valve (52) couples with fuel tank；The hydraulic pump
(50) A mouth couples with oil filter (51)；The motor shaft of the hydraulic pump motor (49) and the axis of hydraulic pump (50) pass through shaft coupling
Device connection；
The hydraulic pump motor (49), No. 1 servo valve (44), No. 2 servo valves (45), pressure gauge (47), overflow valve (52) are respectively
It is electrically connected with console (43).
5. a kind of electric vehicle hydraulic buffer reliability test dress of simulation actual condition load according to claim 1
It sets, which is characterized in that
The temperature and humidity loading device includes temperature and humidity controller (40), No. 1 circulation pipe (41), No. 2 circulation pipes (42), testing stands
Hermatic door (5), testing stand outer cover (10)；
The testing stand outer cover (10) is made of top plate, left plate, right side plate, back side panel, and material is transparent material；The examination
Platform outer cover (10) is tested to be bolted in the cover top surface of Vertical loading support frame (3)；The testing stand hermatic door (5)
Coupled by hinge with experimental bench outer cover (10), testing stand hermatic door (5) material is transparent material；
No. 2 circulation pipes (42) upper end is connected with experimental bench outer cover (10) top；No. 2 circulation pipe (42) lower ends and temperature and humidity
The upper end of controller (40) is connected；The upper end and experimental bench outer cover (10) lower part of No. 1 circulation pipe (41) are connected；It is described
The lower end of No. 1 circulation pipe (41) and the lower end of temperature and humidity controller (40) are connected；The temperature and humidity controller (40), No. 1 follow
Endless tube (41), No. 2 circulation pipes (42), testing stand outer cover (10) constitute closed-loop test environment and adjust channel；
The temperature and humidity controller (40) is electrically connected with console (43).
6. a kind of electric vehicle hydraulic buffer reliability test dress of simulation actual condition load according to claim 2
It sets, which is characterized in that
The Vertical loading support frame (3) is welded by top plate, left plate, right side plate.
7. a kind of electric vehicle hydraulic buffer reliability test dress of simulation actual condition load according to claim 1
It sets, which is characterized in that
The structural member that the adjustment frame (24) is made of horizontal axis a, horizontal axis b and vertical pivot offers through-hole c among vertical pivot, through-hole c
Axis it is vertical with the axis of horizontal axis a, horizontal axis b, horizontal axis a is parallel with the axis of horizontal axis b.
8. a kind of electric vehicle hydraulic buffer reliability test dress of simulation actual condition load according to claim 1
It sets, which is characterized in that
The structural member that the rectangular retainer (8) is welded by top plate and bottom plate, right side plate, front side board, back side panel, the side
The front side board of shape retainer (8) and back side panel respectively open up that there are two arc strip holes；The top plate of the rectangular retainer (8), bottom
Plate offers U-type groove；Threaded hole is offered among the right side plate of the rectangular retainer (8).
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| CN109187243A (en) * | 2018-10-30 | 2019-01-11 | 万向钱潮股份有限公司 | A kind of fatigue test guiding device |
| CN109612705B (en) * | 2018-12-24 | 2020-07-17 | 重庆朔东汽车部件有限公司 | Automobile shock absorber test structure and using method thereof |
| CN109932176A (en) * | 2019-04-12 | 2019-06-25 | 洛阳西苑车辆与动力检验所有限公司 | Tractor Power Train test-bed forerunner loads attachment device and connection method |
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| CN114964830B (en) * | 2022-06-01 | 2024-05-31 | 长春汽车检测中心有限责任公司 | Performance test device for vehicle shock absorber |
| CN117108593B (en) * | 2023-10-23 | 2024-01-05 | 莱州兴达液压机械科技有限公司 | Hydraulic mechanical locking oil cylinder simulation test device |
| CN118090451B (en) * | 2024-04-26 | 2024-06-21 | 无锡市嘉德机械有限公司 | Welding seam strength detection device for electric vehicle frame |
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