CN208568314U - The multidirectional random loading Bench Test System of commercial vehicle front axle assembly - Google Patents
The multidirectional random loading Bench Test System of commercial vehicle front axle assembly Download PDFInfo
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- CN208568314U CN208568314U CN201821160530.2U CN201821160530U CN208568314U CN 208568314 U CN208568314 U CN 208568314U CN 201821160530 U CN201821160530 U CN 201821160530U CN 208568314 U CN208568314 U CN 208568314U
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- wheel center
- grounding point
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- front axle
- center grounding
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Abstract
The utility model patent provides a kind of multidirectional random loading Bench Test System of commercial vehicle front axle assembly, mainly by be located at two groups of front axle assembly sample both ends to be tested totally eight linear actuators random load is applied simultaneously to front axle assembly, wherein six linear actuators are horizontal positioned, apply longitudinal wheel center grounding point, wheel center grounding point lateral load and wheel center longitudinal loading respectively to test specimen；Other two linear actuators are disposed vertically, and apply vertical load to test specimen；It ensure that wheel center grounding point longitudinal loading load(ing) point is in ground contact point always, in turn avoid that wheel center grounding point is lateral, influence of the vertical load to wheel center grounding point longitudinal loading, the compactedness that ensure that loading system simultaneously, is advantageously implemented the control of load spectrum；It is the utility model patent novel and unique, ingenious in design, it tests final effect and real vehicle failure mode is almost the same.
Description
Technical field
The utility model belongs to auto parts and components bench test technical field, be related to a kind of commercial vehicle front axle assembly it is multidirectional with
Machine loads Bench Test System, is mainly used for carrying out the road analogy bench test of commercial vehicle front axle assembly.
Background technique
Front axle assembly is the critical component in commercial vehicle chassis steering system, and the knuckle that can use in assembly makes wheel
It deflects certain angle and completes motor turning function.It is longitudinally carried other than bearing vertical load, also subject to wheel center grounding point
Lotus, wheel center longitudinal loading and wheel center grounding point lateral load.
Currently, for front axle assembly bench test mainly with unidirectional constant amplitude load based on, i.e., connect in vertical, wheel center
Place is longitudinal, wheel center grounding point laterally respectively loads it, differs larger with stress condition complicated under real vehicle state, leads
It causes failure mode and the considered repealed form of rack inconsistent, can not really play the role of examining product.
Summary of the invention
The utility model provides a kind of commercial vehicle front axle to overcome the problems, such as that existing front axle assembly bench test exists
The multidirectional random loading Bench Test System of assembly.
The utility model adopts the following technical scheme that realization:
The multidirectional random loading Bench Test System of commercial vehicle front axle assembly, which is characterized in that front axle assembly to be tested is logical
It crosses two front axle fixed blocks to be fixed on two horizontally disposed front axle hold-down supports, front axle fixed block can be around front axle hold-down support
Axis rotation, the left end of front axle assembly and right end be mounted on a simulation wheel hub and a knuckle, simulation wheel hub and turns
Front axle assembly end is connected to by real vehicle use state to section, simulation wheel hub is provided with the bearing that real vehicle uses, and vertically arranged 1
The moved end of making of number linear actuator is connected by Vertical loading fork and loading sleeve with wheel hub is simulated, the fixation of Line 1 actuator
End is connect with the crossbeam of the portal frame of top by flexural pivot, and loading sleeve top passes through the front end of No. 1 oscillating bearing and U-shaped loading arm
Connection, loading sleeve lower part are connect by No. 2 oscillating bearings with the front end of L-type loading arm horizontal segment, L-type loading arm vertical section it is upper
End is hinged with the rear end of U loading arm, and the middle part of L-type loading arm vertical section loads the one of fork by No. 1 pin shaft and wheel center
End is hinged, and the other end of wheel center load fork is fixedly connected with No. 2 linear actuators as moved end, No. 2 linear actuator edges
Wheel center is longitudinally disposed and the fixing end of No. 2 linear actuators is connected by the vertical beam of flexural pivot and portal frame, and wheel center connects
The top of the lateral loading arm in place is fixedly connected by wheel hub connecting plate with simulation wheel hub, No. 3 linear actuators make moved end with
One end that wheel center grounding point laterally loads fork is fixedly connected, and wheel center grounding point laterally loads the other end of fork by 2
Number pin shaft and the lateral loading arm lower hinge of wheel center grounding point, No. 3 linear actuators are laterally set along wheel center grounding point
It sets and the fixing end of No. 3 linear actuators is connect by flexural pivot with wheel center grounding point lateral linear actuator support, vertically
The wheel center grounding point longitudinal direction loading arm top of setting is fixedly connected with knuckle, and No. 4 linear actuators pass through as moved end
Wheel center grounding point longitudinal direction load plate is connect with wheel center grounding point one end that longitudinally load is pitched, and wheel center grounding point is vertical
It is arranged to the other end of load fork there are two wheel center grounding point longitudinal direction loading sleeve, two wheel center grounding points longitudinally load
By a connecting pin and wheel center grounding point longitudinal direction loading arm lower hinge between set, No. 4 linear actuators are along wheel
Heart grounding point is longitudinally disposed and the fixing end of No. 4 linear actuators passes through flexural pivot and wheel center grounding point vertical linear actuator
Support connection, Line 1 actuator, No. 2 linear actuators, No. 3 linear actuators and No. 4 linear actuators pass through harness with
Controller connection.
Further technical solution includes:
Wheel center grounding point laterally loads fork and passes through No. 2 pin shafts with the lateral loading arm lower part of wheel center grounding point
Hingedly.
Connecting pin passes through an oscillating bearing and wheel center grounding point longitudinal direction loading arm lower hinge.
Compared with prior art the beneficial effects of the utility model are:
The utility model patent needle provides a kind of multidirectional random loading Bench Test System of commercial vehicle front axle assembly, mainly
Random load is applied simultaneously to front axle assembly by eight linear actuators, wherein six linear actuators are horizontal positioned, to examination
It tests sample and applies longitudinal wheel center grounding point, wheel center grounding point lateral load and wheel center longitudinal loading respectively；
Other two linear actuators are disposed vertically, and apply vertical load to test specimen.
Front axle assembly is fixed at front-axle leaf spring seat using two fixed blocks in the pilot system, fixed block can be around
Axis rotation simulates installation form of the front axle assembly under real vehicle state to eliminate the influence at spring block to stress transfer；?
In the loading mechanism of wheel center longitudinal direction, using pin shaft and symmetrical two oscillating bearings, make wheel center longitudinal loading not by vertical
Histogram to movement and knuckle yaw motion influence；In the loading mechanism of wheel center grounding point longitudinal direction, linear actuator
Load is applied to sample by the oscillating bearing of wheel center grounding point longitudinal direction loading arm lower end, both ensure that wheel center was grounded
Point longitudinal loading load(ing) point is in ground contact point always, in turn avoids that wheel center grounding point is lateral, vertical load is to wheel
The influence of centre-point earth point longitudinal loading, while ensure that the compactedness of loading system, it is advantageously implemented the control of load spectrum
System；In the lateral loading mechanism of wheel center grounding point, using the real vehicle knuckle tapered roller bearing in simulation wheel hub, make vehicle
The load of wheel centre-point earth point lateral load is not influenced by wheel center grounding point longitudinal movement, and load(ing) point is always in wheel
On centre-point earth point.It is the invention patent novel and unique, ingenious in design, it tests final effect and real vehicle failure mode is almost the same.
Detailed description of the invention
The present invention will be further described below with reference to the drawings:
Fig. 1 is the overall structure of the multidirectional random loading Bench Test System of commercial vehicle front axle assembly described in the utility model
Schematic diagram；
Fig. 2 is in the wheel in the multidirectional random loading Bench Test System of commercial vehicle front axle assembly described in the utility model
The schematic diagram of heart longitudinal direction loading structure；
Fig. 3 is in the wheel in the multidirectional random loading Bench Test System of commercial vehicle front axle assembly described in the utility model
The schematic diagram of the lateral loading structure of heart grounding point；
Fig. 4 is in the wheel in the multidirectional random loading Bench Test System of commercial vehicle front axle assembly described in the utility model
Heart grounding point longitudinal direction loading structure；
In figure: 1. portal frames, No. 2.1 linear actuators, 3. front axle assemblies, 4. front axle hold-down supports, 5. front axle fixed blocks,
6. Vertical loading is pitched, 7. wheel center grounding point vertical linear actuator supports, 8. wheel center grounding point lateral linear actuations
Device support, 9. loading sleeves, 10.U type loading arm, No. 11.1 oscillating bearings, No. 12.2 linear actuators, the load of 13. wheel centers
Fork, No. 14.1 pin shafts, 15.L type loading arm, No. 16.2 oscillating bearings, 17. simulation wheel hubs, 18. wheel center grounding points laterally add
Load arm, No. 19.2 pin shafts, 20. wheel center grounding points laterally load fork, 21. wheel hub connecting plates, No. 22.3 linear actuators,
23. wheel center grounding point longitudinal direction loading arm, No. 24.4 linear actuators, 25. wheel center grounding point longitudinal direction loading sleeves, 26.
Oscillating bearing, 27. connecting pins, 28. wheel center grounding points longitudinally pitch by load, 29. wheel center grounding point longitudinal direction load plates.
Specific embodiment
The present invention is explained in detail with reference to the accompanying drawing:
Overall structure such as Fig. 1 of the multidirectional random loading Bench Test System of commercial vehicle front axle assembly described in the utility model
Shown, front axle assembly 3 to be tested is fixed on two horizontally disposed front axle hold-down supports 4 by two front axle fixed blocks 5,
Front axle fixed block 5 can be rotated around the axis of front axle hold-down support 4, and the left end of front axle assembly 3 and right end are mounted on a simulation
Wheel hub 17 and a knuckle simulate wheel hub 17 and knuckle by real vehicle use state and are connected to 3 end of front axle assembly, simulation wheel
Hub 17 is provided with the bearing that real vehicle uses, and the loading end of vertically arranged Line 1 actuator 2 by Vertical loading fork 6 and adds
It carries set 9 to be connected with simulation wheel hub 17, the crossbeam of the portal frame 1 of the fixing end and top of Line 1 actuator 2 is connected by flexural pivot
It connects, is illustrated in figure 2 wheel center longitudinal direction loading structure, 9 top of loading sleeve passes through No. 1 oscillating bearing 11 and U-shaped loading arm 10
Front end connection, 9 lower part of loading sleeve connect by No. 2 oscillating bearings 16 with the front end of 15 horizontal segment of L-type loading arm, and L-type loads
The upper end of 15 vertical section of arm and the rear end of U loading arm 10 are hinged, and the middle part of 15 vertical section of L-type loading arm passes through No. 1 pin shaft 14
It is hinged with one end of wheel center load fork 13, the load of the other end and No. 2 linear actuators 12 of wheel center load fork 13
End is fixedly connected, and No. 2 linear actuators 12 are longitudinally disposed along wheel center and the fixing end of No. 2 linear actuators 12 passes through flexural pivot
It is connect with the vertical beam of portal frame 1, is illustrated in figure 3 the lateral loading structure of wheel center grounding point, wheel center grounding point is lateral
The top of loading arm 18 by wheel hub connecting plate 21 with simulation wheel hub 17 be fixedly connected, the loading end of No. 3 linear actuators 22 and
One end that wheel center grounding point laterally loads fork 20 is fixedly connected, and the other end that wheel center grounding point laterally loads fork 20 is logical
No. 2 pin shafts 19 and lateral 18 lower hinge of loading arm of wheel center grounding point are crossed, No. 3 linear actuators 22 are grounded along wheel center
Laterally disposed and No. 3 linear actuators 22 the fixing end of point passes through flexural pivot and wheel center grounding point lateral linear actuator support
8 connections, are illustrated in figure 4 wheel center grounding point longitudinal direction loading structure, and vertically disposed wheel center grounding point longitudinally loads
23 top of arm is fixedly connected with knuckle, and the loading end of No. 4 linear actuators 24 passes through wheel center grounding point longitudinal direction load plate
29 connect with wheel center grounding point one end that longitudinally load pitches 28, and the other end that wheel center grounding point longitudinally loads fork 28 is set
It sets there are two wheel center grounding point longitudinal direction loading sleeve 25, passes through one between two wheel center grounding point longitudinal direction loading sleeves 25
Connecting pin 27 and 23 lower hinge of wheel center grounding point longitudinal direction loading arm, No. 4 linear actuators 24 are along wheel center grounding point
Longitudinally disposed and No. 4 linear actuators 24 fixing end passes through flexural pivot and wheel center grounding point vertical linear actuator support 7
Connection, linear actuator 22 and No. 4 linear actuator 24 of linear actuator 12,3 of Line 1 actuator 2,2 pass through line
Beam is connect with controller.
A kind of working principle of the multidirectional random loading Bench Test System of commercial vehicle front axle assembly described in the utility model
It is as follows:
During test, Line 1 actuator 2 uses load control mode, by Vertical loading fork 6 through loading sleeve 9, mould
Quasi- wheel hub 17 applies vertical random load to front axle assembly 3；No. 2 linear actuators 12 use load control modes, by L-type plus
Load arm 15, U-shaped loading arm 10 apply wheel center longitudinal loading to sample through loading sleeve 9, simulation wheel hub 17；No. 3 linear actuations
Device 22 uses load control mode, and fork 20, the lateral loading arm of wheel center grounding point are laterally loaded by wheel center grounding point
18 apply wheel center grounding point lateral load to front axle assembly 3 through simulation wheel hub 17；No. 4 linear actuators 24 use load control
Mode processed, by wheel center grounding point longitudinal direction load plate 29, wheel center grounding point, longitudinally load fork 28, wheel center are grounded
The longitudinal loading arm 23 of point applies wheel center grounding point longitudinal loading to front axle assembly 3.Each linear actuator is all made of real vehicle road
For road loading spectrum as input, the stress and real vehicle state of sample are almost the same.
Claims (3)
1. the multidirectional random loading Bench Test System of commercial vehicle front axle assembly, which is characterized in that front axle assembly (3) to be tested is logical
It crosses two front axle fixed blocks (5) to be fixed on two horizontally disposed front axle hold-down supports (4), front axle fixed block (5) can be around preceding
The axis of axis hold-down support (4) rotates, and the left end of front axle assembly (3) and right end are mounted on a simulation wheel hub (17) and one
Knuckle simulates wheel hub (17) and knuckle by real vehicle use state and is connected to front axle assembly (3) end, and simulation wheel hub (17) is interior
Equipped with the bearing that real vehicle uses, the moved end of making of vertically arranged Line 1 actuator (2) passes through Vertical loading fork (6) and load
Set (9) is connected with simulation wheel hub (17), and the crossbeam of the portal frame (1) of the fixing end and top of Line 1 actuator (2) passes through ball
It is hinged, loading sleeve (9) top is connect by No. 1 oscillating bearing (11) with the front end of U-shaped loading arm (10), under loading sleeve (9)
Portion is connect by No. 2 oscillating bearings (16) with the front end of L-type loading arm (15) horizontal segment, L-type loading arm (15) vertical section it is upper
End is hinged with the rear end of U loading arm (10), and the middle part of L-type loading arm (15) vertical section passes through in No. 1 pin shaft (14) and wheel
One end of heart load fork (13) is hinged, and the other end of wheel center load fork (13) and No. 2 linear actuators (12) make moved end
It is fixedly connected, No. 2 linear actuators (12) are longitudinally disposed along wheel center and the fixing end of No. 2 linear actuators (12) passes through ball
Hinge is connect with the vertical beam of portal frame (1), and the top of the lateral loading arm of wheel center grounding point (18) passes through wheel hub connecting plate (21)
It is fixedly connected with simulation wheel hub (17), the moved end of making of No. 3 linear actuators (22) laterally loads fork with wheel center grounding point
(20) one end is fixedly connected, and the other end that wheel center grounding point laterally loads fork (20) passes through No. 2 pin shafts (19) and wheel
The lateral loading arm of centre-point earth point (18) lower hinge, No. 3 linear actuators (22) are laterally disposed along wheel center grounding point and 3
The fixing end of number linear actuator (22) is connect by flexural pivot with wheel center grounding point lateral linear actuator support (8), vertical
Wheel center grounding point longitudinal direction loading arm (23) top being directly arranged is fixedly connected with knuckle, No. 4 linear actuators (24)
Make moved end to connect by wheel center grounding point longitudinal direction load plate (29) and wheel center grounding point one end that longitudinally (28) are pitched in load
It connects, wheel center grounding point longitudinally loads wheel center grounding point longitudinal direction loading sleeve there are two the other end settings for pitching (28)
(25), vertical by a connecting pin (27) and wheel center grounding point between two wheel center grounding point longitudinal direction loading sleeves (25)
To loading arm (23) lower hinge, No. 4 linear actuators (24) are longitudinally disposed along wheel center grounding point and No. 4 linear actuators
(24) fixing end is connect by flexural pivot with wheel center grounding point vertical linear actuator support (7), Line 1 actuator
(2), No. 2 linear actuators (12), No. 3 linear actuators (22) and No. 4 linear actuators (24) pass through harness and controller
Connection.
2. the multidirectional random loading Bench Test System of commercial vehicle front axle assembly according to claim 1, which is characterized in that vehicle
Wheel centre-point earth point laterally loads fork (20) and the lateral loading arm of wheel center grounding point (18) lower part and passes through No. 2 pin shafts
(19) hinged.
3. the multidirectional random loading Bench Test System of commercial vehicle front axle assembly according to claim 1, which is characterized in that even
Outbound (27) passes through an oscillating bearing (26) and wheel center grounding point longitudinal direction loading arm (23) lower hinge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821160530.2U CN208568314U (en) | 2018-07-20 | 2018-07-20 | The multidirectional random loading Bench Test System of commercial vehicle front axle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821160530.2U CN208568314U (en) | 2018-07-20 | 2018-07-20 | The multidirectional random loading Bench Test System of commercial vehicle front axle assembly |
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| CN208568314U true CN208568314U (en) | 2019-03-01 |
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| CN201821160530.2U Active CN208568314U (en) | 2018-07-20 | 2018-07-20 | The multidirectional random loading Bench Test System of commercial vehicle front axle assembly |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896277A (en) * | 2020-07-20 | 2020-11-06 | 东风商用车有限公司 | Test bed for steering system of commercial vehicle |
| CN113155487A (en) * | 2021-05-18 | 2021-07-23 | 北京博科测试***股份有限公司 | Commercial car a steering system test bench |
| CN113310709A (en) * | 2021-05-27 | 2021-08-27 | 一汽解放汽车有限公司 | Commercial car power assembly suspension multidirectional loading test device |
| CN113310827A (en) * | 2021-05-27 | 2021-08-27 | 一汽解放汽车有限公司 | Multidirectional loading test device for driving axle housing of commercial vehicle |
-
2018
- 2018-07-20 CN CN201821160530.2U patent/CN208568314U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896277A (en) * | 2020-07-20 | 2020-11-06 | 东风商用车有限公司 | Test bed for steering system of commercial vehicle |
| CN111896277B (en) * | 2020-07-20 | 2021-07-06 | 东风商用车有限公司 | Test bed for steering system of commercial vehicle |
| CN113155487A (en) * | 2021-05-18 | 2021-07-23 | 北京博科测试***股份有限公司 | Commercial car a steering system test bench |
| CN113310709A (en) * | 2021-05-27 | 2021-08-27 | 一汽解放汽车有限公司 | Commercial car power assembly suspension multidirectional loading test device |
| CN113310827A (en) * | 2021-05-27 | 2021-08-27 | 一汽解放汽车有限公司 | Multidirectional loading test device for driving axle housing of commercial vehicle |
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