CN111707482B - Eight-channel multifunctional suspension road simulation test bed - Google Patents
Eight-channel multifunctional suspension road simulation test bed Download PDFInfo
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- CN111707482B CN111707482B CN202010522164.6A CN202010522164A CN111707482B CN 111707482 B CN111707482 B CN 111707482B CN 202010522164 A CN202010522164 A CN 202010522164A CN 111707482 B CN111707482 B CN 111707482B
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- 239000000725 suspension Substances 0.000 title claims abstract description 133
- 238000012360 testing method Methods 0.000 title claims abstract description 47
- 238000004088 simulation Methods 0.000 title claims abstract description 30
- 239000006096 absorbing agent Substances 0.000 claims abstract description 43
- 230000035939 shock Effects 0.000 claims abstract description 43
- 238000006467 substitution reaction Methods 0.000 claims abstract description 43
- 230000002787 reinforcement Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 8
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
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- 239000010959 steel Substances 0.000 description 2
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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
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/04—Suspension or damping
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Abstract
The invention discloses an eight-channel multifunctional road simulation test bed which is formed by assembling a suspension fixing system and a servo hydraulic actuator fixing system, wherein the suspension fixing system comprises a suspension fixing base, a cross beam, a shock absorber fixing support base, a shock absorber fixing support, a spring fixing ejector rod, a front vehicle body substitution plate, a suspension fixing support, a rear vehicle body substitution plate and a four-freedom-degree loading arm, and the servo hydraulic actuator fixing system comprises a suspension servo hydraulic actuator gantry, a vertical servo hydraulic actuator, a lateral counter-force seat, a lateral servo hydraulic actuator, a longitudinal counter-force seat and a longitudinal servo hydraulic actuator. The invention can carry out eight-channel road simulation aiming at the suspension system, can respectively control vertical force, lateral force, longitudinal force, roll moment and brake moment by four degrees of freedom at one side, can carry out road simulation test on the suspension to be tested, can carry out coordinated loading test according to actual requirements, and can quickly and effectively realize durability check on the suspension system.
Description
Technical Field
The invention relates to an eight-channel multifunctional suspension road simulation test bed, in particular to a multifunctional road simulation test bed for performing eight-channel road simulation, namely single-side four-degree-of-freedom loading, on a suspension system, and belongs to the technical field of durability tests of suspension systems.
Background
The suspension system is one of the important components of the whole vehicle, so the durability test of the suspension system is particularly emphasized in the development process of the suspension system.
At present, a road simulation test of a suspension system is mainly carried out by using an axle coupling road simulation test bed, most of the axle coupling road simulation test beds are comprehensive tests of the reliability of the whole vehicle, if the suspension system is examined and researched independently, the verified equipment resource is insufficient, and a fixing clamp needs to be designed and manufactured; the suspension system test by using the linear actuator mainly adopts unidirectional loading as a main part, and the failure mode of the suspension system test is inconsistent with the actual failure mode, so that the suspension system test cannot really realize the product inspection function.
At the present stage, a test bench for performing an eight-channel road simulation test by using a discrete servo hydraulic actuator combination for a suspension system does not exist.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides an eight-channel multifunctional road simulation test bed which can be used for performing eight-channel road simulation on a suspension system, namely loading with four degrees of freedom on one side, wherein the four degrees of freedom on one side can respectively control vertical force, lateral force, longitudinal force, roll moment and brake moment.
Compared with the prior art, the road simulation test bed built by the multi-channel combination of the linear actuators is wide in universality, simple in structure and convenient to build, can accurately reproduce the vibration state of a suspension of a vehicle during road running, and provides reference for coordinated loading of the linear actuators.
The purpose of the invention is realized by the following technical scheme, which is combined with the attached drawings:
an eight-channel multifunctional road simulation test bed is formed by assembling a suspension fixing system and a servo hydraulic actuator fixing system, and realizes single-side four-degree-of-freedom loading of the suspension system; the suspension fixing system comprises a suspension fixing base 8, a cross beam 9, a shock absorber fixing support base 11, a shock absorber fixing support 12, a spring fixing ejector rod 13, a front vehicle body replacing plate 14, a suspension fixing support 15, a rear vehicle body replacing plate 16 and a four-degree-of-freedom loading arm 17; the crossbeam 9 is fixed on the suspension fixing base 8, the shock absorber fixing support base 11 is fixed at the bottom of the crossbeam 9, and the connecting shock absorber fixing support 12 and the spring fixing ejector rod 13 are respectively installed below the shock absorber fixing support base 11; the front vehicle body substitution plate 14 is arranged below the suspension fixing base 8, a vertical plate of the front vehicle body substitution plate 14 is connected with the suspension fixing base 8, and a bottom plate of the front vehicle body substitution plate 14 is fixed with a control arm of a suspension system; the rear vehicle body substitution plate 16 is arranged below the suspension fixing base 8, and a vertical plate of the rear vehicle body substitution plate 16 is connected with the suspension fixing base 8; suspension fixing brackets 15 are fixed on vertical plates of the front vehicle body substitution plate 14 and the rear vehicle body substitution plate 16, and a suspension system to be tested is fixed by the suspension fixing brackets 15; the four-degree-of-freedom loading arm 17 is connected with a hub of the suspension system, and the four-degree-of-freedom loading arm 17 is simultaneously connected with the servo hydraulic actuator fixing system.
Further, the servo hydraulic actuator fixing system comprises a suspended servo hydraulic actuator gantry 1, a vertical servo hydraulic actuator 2, a lateral counter-force seat 3, a lateral servo hydraulic actuator 4, a longitudinal counter-force seat 5 and a longitudinal servo hydraulic actuator; a fixed seat of the vertical servo hydraulic actuator 2 is fixed on the gantry 1 for suspending the servo hydraulic actuator; the fixed seat of the lateral servo hydraulic actuator 4 is fixedly connected with the lateral counter-force seat 3; a fixed seat of the longitudinal servo hydraulic actuator is fixedly connected with a longitudinal counter-force seat 5; and the loading seats of the vertical servo hydraulic actuator 2, the lateral servo hydraulic actuator 4 and the longitudinal servo hydraulic actuator are respectively connected with a four-degree-of-freedom loading arm 17 of the suspension fixing system.
Preferably, the test bed further comprises a cross beam reinforcing seat 10, and the cross beam reinforcing seat 10 is fixed between the shock absorber fixing support base 11 and the suspension fixing base 8; the front and rear body replacement panels 14, 16 are both mounted under the suspension fixing base 8 directly behind the front body replacement panel 14.
Preferably, the four-degree-of-freedom loading arm 17 comprises a main plate, an upper flat plate, a longitudinal vertical plate and a lower vertical plate; the main board is fixedly connected with a hub part of the suspension system through a hub bolt; the upper flat plate is connected with the vertical servo hydraulic actuator; the longitudinal vertical plate is connected with the longitudinal servo hydraulic actuator; the lower vertical plate is connected with the lateral servo hydraulic actuator.
Preferably, the longitudinal servo hydraulic actuators comprise a longitudinal servo hydraulic actuator a6 and a longitudinal servo hydraulic actuator b 7; the fixing seats of the longitudinal servo hydraulic actuator a6 and the longitudinal servo hydraulic actuator b7 are respectively fixedly connected with the longitudinal counter-force seat 5; a loading seat of the longitudinal servo hydraulic actuator a6 is connected with a longitudinal vertical plate of the four-degree-of-freedom loading arm 17; the four-degree-of-freedom loading arm 17 comprises two lower vertical plates, and the loading seats of the longitudinal servo hydraulic actuators b7 are respectively connected with the other lower vertical plate.
Preferably, four suspension fixing brackets 15 are distributed and fixed on the vertical plate of the front vehicle body substitution plate 14 and the vertical plate of the rear vehicle body substitution plate 16, and are used for fixing the suspension system to be tested.
Preferably, one end of the shock absorber fixing support 12 is connected with the shock absorber through two vertical plates, and the other end of the support is connected with the spring fixing ejector rod 13 through threads.
Preferably, the front body replacement panel 14 is used for left and right attachment to the front of the suspension system; the rear body replacement panel 16 is used to effect left and right securement of the rear of the suspension system.
The invention has the following beneficial effects:
the test bench has the advantages that the test of simulating road signals on the suspension can be realized through the discrete servo hydraulic actuator, the test fixture has a simple structure, the fixture is convenient to mount and fix, the whole system is convenient and fast to move, the test bench has strong universality, and the test bench can be suitable for suspension tests of different vehicle types by changing the structure of the vehicle body substitution plate; the system can realize the road simulation of the single side or the double sides of the suspension system and can also carry out the random loading or the unidirectional loading test with variable channel number according to the actual requirement.
Drawings
FIG. 1 is a general schematic view of an eight-channel multifunctional road simulation test bed according to the present invention;
FIG. 2 is a partial schematic view of a test stand according to the present invention;
FIG. 3 is a partial schematic view of a test stand according to the present invention;
FIG. 4 is a schematic view of a portion of a test stand according to the present invention;
FIG. 5 is a schematic structural diagram of a four-degree-of-freedom loading arm according to the present invention;
in the figure:
1-hanging a servo hydraulic actuator gantry; 2-vertical servo hydraulic actuator; 3-lateral counter-force seat; 4-a lateral servo hydraulic actuator; 5-longitudinal counter-force seat; 6-longitudinal servo hydraulic actuator a; 7-longitudinal servo hydraulic actuator b; 8-a suspension mounting base; 9-a cross beam; 10-a beam reinforcement seat; 11-a shock absorber mount base; 12-a shock absorber fixing bracket; 13-spring fixing the ejector rod; 14-front body replacement panel; 15-suspension fixing bracket; 16-rear body replacement panel; 17-four degree of freedom loading arm.
Detailed Description
In order to make the technical solution of the present invention clearer, the following detailed description is made with reference to the accompanying drawings and specific embodiments.
The embodiment of the invention provides a multifunctional road simulation test bed for performing eight-channel road simulation, namely one-side four-freedom-degree loading on a suspension system.
Referring to fig. 1 and 2, which are schematic overall and partial views of the test stand of the present invention, the embodiment of the test stand will be described using a side view since the suspension system is basically a symmetrical structure.
An eight-channel multifunctional road simulation test bed is assembled and fixed by a suspension fixing system and a servo hydraulic actuator fixing system.
The servo hydraulic actuator fixing system comprises a suspended servo hydraulic actuator gantry 1, a vertical servo hydraulic actuator 2, a lateral reaction force seat 3, a lateral servo hydraulic actuator 4, a longitudinal reaction force seat 5, a longitudinal servo hydraulic actuator a6 and a longitudinal servo hydraulic actuator b 7.
A fixed seat of the vertical servo hydraulic actuator 2 is vertically fixed on the gantry 1 of the suspension servo hydraulic actuator through a bolt; the fixed seat of the lateral servo hydraulic actuator 4 is fixedly connected with the lateral counter-force seat 3 through a bolt; the fixing seats of the longitudinal servo hydraulic actuator a6 and the longitudinal servo hydraulic actuator b7 are fixedly connected with the longitudinal counter-force seat 5 through bolts respectively; and the loading seats of the vertical servo hydraulic actuator 2, the lateral servo hydraulic actuator 4, the longitudinal servo hydraulic actuator a6 and the longitudinal servo hydraulic actuator b7 are respectively connected with a four-degree-of-freedom loading arm 17 of the suspension fixing system through bolts.
The suspension fixing system comprises a suspension fixing base 8, a cross beam 9, a cross beam reinforcing seat 10, a shock absorber fixing support base 11, a shock absorber fixing support 12, a spring fixing ejector rod 13, a front vehicle body replacing plate 14, a suspension fixing support 15, a rear vehicle body replacing plate 16 and a four-degree-of-freedom loading arm 17.
The cross beam 9 is connected to the suspension fixing base 8 through bolts, the shock absorber fixing support base 11 is fixed at the bottom of the cross beam 9 through bolts, and the connecting shock absorber fixing support 12 and the spring fixing ejector rod 13 are respectively installed below the shock absorber fixing support base 11; the beam reinforcing seat 10 is fixed between the shock absorber fixing support base 11 and the suspension fixing base 8; the front vehicle body substitution plate 14 is arranged below the suspension fixing base 8 and is positioned in front of the lower part of the cross beam reinforcing seat 10, a vertical plate of the front vehicle body substitution plate 14 is connected with the suspension fixing base 8, and a bottom plate of the front vehicle body substitution plate 14 is fixed with a control arm of a suspension system; the rear vehicle body substitution plate 16 is arranged below the suspension fixing base 8 and is positioned right behind the front vehicle body substitution plate 14, and a vertical plate of the rear vehicle body substitution plate 16 is connected with the suspension fixing base 8; suspension fixing brackets 15 are fixed on vertical plates of the front vehicle body substitution plate 14 and the rear vehicle body substitution plate 16, and a suspension system to be tested is fixed by the suspension fixing brackets 15; the four degree of freedom loading arm 17 is connected to the hub of the suspension system by a fixing nut. The road simulation test bed is built by utilizing all parts of the servo hydraulic actuator fixing system, and the loading seats of all the servo hydraulic actuators are uniformly fixed on the four-degree-of-freedom loading arm, so that the single-side four-degree-of-freedom loading of the suspension system is realized.
Furthermore, the suspended servo hydraulic actuator gantry 1 comprises two bases, an adjusting beam and the like, wherein the adjusting beam is fixed between the two bases, and the installation height of the adjusting beam on the bases is adjustable.
The lateral counter-force seat 3 comprises a counter-force seat bottom plate, a front counter-force seat vertical plate, a rear counter-force seat vertical plate, a side vertical plate, counter-force seat reinforcing ribs and the like, hole sites are arranged on the front counter-force seat vertical plate and the rear counter-force seat vertical plate and used for being connected with the lateral servo hydraulic actuator 4, and a lightening hole structure is arranged on the side vertical plate and is favorable for reducing weight.
The structure of the longitudinal reaction force seat 5 is consistent with that of the lateral reaction force seat, which is beneficial to increasing the universality of the reaction force seat.
The suspension fixing base 8 is used for supporting a cross beam 9, a cross beam reinforcing seat 10, a shock absorber fixing support base 11, a front vehicle body replacing plate 14 and a rear vehicle body replacing plate 16; the upper area side of the suspension fixing base 9 is provided with a plurality of holes for fixing, and the holes are used for fixing with a supported part; a bottom plate of the suspension fixing base is provided with a long slotted hole in the horizontal direction and the vertical direction and is used for fixing the iron floor; the suspension fixing base is provided with a lightening hole structure, which is beneficial to reducing weight.
The cross beam 9 is used for being connected with the suspension fixing base in a sliding mode along the lateral direction and used for adjusting the position of the wheel center of the suspension system; the crossbeam comprises square steel, a rib plate and a crossbeam bottom plate, and a plurality of long slotted holes along the measuring direction are formed in the crossbeam bottom plate and are used for fixing the crossbeam reinforcing seat 10 and the shock absorber fixing support base 11; the rib plates and the square steel enable the cross beam to be more stable and firm.
The beam reinforcing seat 10 plays a role in further fixing and reinforcing the connection between the beam 9 and the suspension fixing base 8; the crossbeam reinforcing seat comprises a crossbeam flat plate, a crossbeam vertical plate and a crossbeam inclined plate, wherein the crossbeam flat plate and the crossbeam vertical plate are provided with unidirectional slotted holes for connecting with the crossbeam and the suspension fixing base.
The upper surface and the lower surface of the shock absorber fixing support base 11 are respectively connected with the cross beam 9 and the shock absorber fixing support 12 through long slotted holes on the surfaces of the long slotted holes, and the shock absorber fixing support base has the functions of a middle bridge and a reinforcing structure.
The shock absorber fixing support 12 is provided with two vertical plates which are connected with the shock absorber through holes in the two vertical plates, the other end of the support is connected with the spring fixing ejector rod 13 through threads, and the angle between the spring or the shock absorber and the cross beam or the suspension fixing base can be conveniently adjusted.
The spring fixing ejector rod 13 is used for supporting and fixing the spring and providing support reaction force for the spring; the spring fixing ejector rod 13 comprises a tray, an ejector rod and a locking nut, the lower end of the ejector rod tightly pushes the spring through the tray, and the upper end of the ejector rod is connected with the shock absorber fixing support through threads and locked through the locking nut.
The number of the front vehicle body substitution plates 14 is two, and the front vehicle body substitution plates are used for fixing the front part of the suspension system to the left and the right; the front vehicle body substitution plate 14 comprises a bottom plate, a vertical plate, a rib plate and an inclined plate, wherein the vertical plate is provided with an elongated slot structure and is used for connecting the front vehicle body substitution plate with the suspension fixing base and the suspension fixing support, the bottom plate is provided with four through holes and is used for being fixed with a control arm of a suspension system, and the rib plate enables the substitution plate to be more stable and firm.
Four suspension fixing brackets 15 are distributed and fixed on the vertical plate of the front vehicle body substitution plate 14 and the vertical plate of the rear vehicle body substitution plate 16 and used for fixing a suspension system to be tested. Each suspension fixing support 15 comprises a flat plate, a vertical plate and a rib plate, through holes are formed in the flat plate and used for being connected with four fixing points of a suspension, the vertical plate is provided with a long groove structure and used for being connected with a front vehicle body replacing plate and a rear vehicle body replacing plate, and the rib plate enables the support to be stable and firm.
The number of the rear vehicle body substitution plates 16 is two, and the rear vehicle body substitution plates are used for realizing the left and right fixation of the rear part of the suspension system; the rear vehicle body substitution plate 16 comprises a vertical plate and a rib plate, wherein the vertical plate is provided with an elongated slot structure and is used for being connected with the suspension fixing base and the suspension fixing support, and the rib plate enables the substitution plate to be more stable and firm.
The four-degree-of-freedom loading arm 17 comprises a main plate, an upper flat plate, a longitudinal vertical plate, a lower vertical plate and a rib plate; the main plate is provided with five through holes matched with the hub bolts and used for being fixedly connected with the hub part of the suspension system; the main board is provided with a lightening hole structure, which is beneficial to reducing weight; the upper flat plate is provided with four through holes in total and is used for being connected with the vertical servo hydraulic actuator; the vertical plates are designed to be a front plate and a rear plate in order to avoid the problem of site space, and are connected according to the actual situation when in use, and the vertical plates are used for being connected with a longitudinal servo hydraulic actuator a; the number of the first lower vertical plates is three, each lower vertical plate is provided with a long slotted hole structure, the number of the longitudinal lower vertical plates is two, the longitudinal lower vertical plates are used for being connected with a longitudinal servo hydraulic actuator b, and the remaining lower vertical plate is connected with a lateral servo hydraulic actuator.
Examples
The embodiment of the invention provides a multifunctional road simulation test bed for performing eight-channel road simulation, namely one-side four-freedom-degree loading on a suspension system.
The road simulation test bed for the eight-channel multifunctional suspension is used for testing after the suspension fixing system and the servo hydraulic actuator fixing system are assembled and fixed.
The suspension fixing system comprises a suspension fixing base 8, a cross beam 9, a cross beam reinforcing seat 10, a shock absorber fixing support base 11, a shock absorber fixing support 12, a spring fixing ejector rod 13, a front vehicle body replacing plate 14, a suspension fixing support 15, a rear vehicle body replacing plate 16 and a four-degree-of-freedom loading arm 17; firstly, a suspension fixing base 8 is fixed at a proper position, a cross beam 9 is connected to the suspension fixing base 8 through bolts according to a proper size, long slotted holes are formed in the left side and the right side of the cross beam 9 and are connected with a shock absorber fixing support base 11 with the same long slotted hole through proper bolts, then a shock absorber fixing support 12 and a spring fixing ejector rod 13 are connected below the shock absorber fixing support base 11 and used for fixing a shock absorber and providing counterforce for a spring, a cross beam reinforcing seat 10 is arranged between the shock absorber fixing support base 11 and the suspension fixing base 8, and a transverse plate and a vertical plate on the shock absorber fixing support base have the long slotted holes so as to increase the strength of the cross beam; a front vehicle body replacing plate 14 is arranged in front of the lower part of the cross beam reinforcing seat 10, a vertical plate and a bottom plate are arranged on the front vehicle body replacing plate, the vertical plate is provided with a long groove structure and is used for being connected with a suspension fixing base 8 and a suspension fixing support 15, and four through holes are formed in the bottom plate and are used for being fixed with a control arm of a suspension system; a rear vehicle body replacing plate 16 is arranged right behind the front vehicle body replacing plate 14, and vertical plates on two sides of the rear vehicle body replacing plate 16 are also provided with long slotted holes for connecting with the suspension fixing base 8 and the suspension fixing bracket 15, and the suspension fixing bracket 15 is used for fixing a suspension system to be tested; and finally, the four-degree-of-freedom loading arm 17 is connected with a hub of the suspension system through a fixing nut.
The servo hydraulic actuator fixing system comprises a suspended servo hydraulic actuator gantry 1, a vertical servo hydraulic actuator 2, a lateral reaction force seat 3, a lateral servo hydraulic actuator 4, a longitudinal reaction force seat 5, a longitudinal servo hydraulic actuator a6 and a longitudinal servo hydraulic actuator b 7. The hanging servo hydraulic actuator gantry 1 is used for hanging a fixing seat of the vertical servo hydraulic actuator 2 through a bolt, so that the vertical servo hydraulic actuator 2 is fixed; the lateral counter-force seat 3 is also connected with a fixed seat on the lateral servo hydraulic actuator 4 through a bolt; the longitudinal counter-force seat 5 and the lateral counter-force seat 3 are of the same structure; since the longitudinal loading design of the four-degree-of-freedom loading arm 17 is symmetrical, the longitudinal servo hydraulic actuator a6 and the longitudinal servo hydraulic actuator b7 can be connected according to actual conditions; then the loading seats of the vertical servo hydraulic actuator 2, the lateral servo hydraulic actuator 4, the longitudinal servo hydraulic actuator a6 and the longitudinal servo hydraulic actuator b7 are connected with the four-degree-of-freedom loading arm 17 through bolts.
It should be noted that the road simulation test of the suspension system based on the discrete servo hydraulic actuator has different test purposes, different loading modes and different combinations of degrees of freedom, but the modification and decoration without departing from the principle of the invention should be regarded as the protection scope of the invention.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (4)
1. An eight-channel multifunctional road simulation test bed is characterized by being formed by assembling a suspension fixing system and a servo hydraulic actuator fixing system, and realizing single-side four-degree-of-freedom loading of the suspension system; the suspension fixing system comprises a suspension fixing base (8), a cross beam (9), a shock absorber fixing support base (11), a shock absorber fixing support (12), a spring fixing ejector rod (13), a front vehicle body replacing plate (14), a suspension fixing support (15), a rear vehicle body replacing plate (16) and a four-degree-of-freedom loading arm (17); a cross beam (9) is fixed on a suspension fixing base (8), a shock absorber fixing support base (11) is fixed at the bottom of the cross beam (9), and a shock absorber fixing support (12) and a spring fixing ejector rod (13) are respectively arranged below the shock absorber fixing support base (11); the front vehicle body substitution plate (14) is arranged below the suspension fixing base (8), and the front vehicle body substitution plate (14) is used for fixing the left and right parts of the front part of the suspension system; a vertical plate of the front vehicle body substitution plate (14) is connected with the suspension fixing base (8), and a bottom plate of the front vehicle body substitution plate (14) is fixed with a control arm of a suspension system; the rear vehicle body substitution plate (16) is arranged below the suspension fixing base (8), and the rear vehicle body substitution plate (16) is used for realizing the left and right fixation of the rear part of the suspension system; the vertical plate of the rear vehicle body substitution plate (16) is connected with the suspension frame fixing base (8); suspension fixing brackets (15) are fixed on vertical plates of the front vehicle body replacing plate (14) and the rear vehicle body replacing plate (16), and a suspension system to be tested is fixed by the suspension fixing brackets (15); one end of a shock absorber fixing support (12) is connected with a shock absorber through two vertical plates, and the other end of the support is connected with a spring fixing ejector rod (13) through threads;
the servo hydraulic actuator fixing system comprises a suspended servo hydraulic actuator gantry (1), a vertical servo hydraulic actuator (2), a lateral counter-force seat (3), a lateral servo hydraulic actuator (4), a longitudinal counter-force seat (5) and a longitudinal servo hydraulic actuator; a fixed seat of the vertical servo hydraulic actuator (2) is fixed on the gantry (1) of the suspension servo hydraulic actuator; a fixed seat of the lateral servo hydraulic actuator (4) is fixedly connected with the lateral counter-force seat (3); a fixed seat of the longitudinal servo hydraulic actuator is fixedly connected with a longitudinal counter-force seat (5);
the four-degree-of-freedom loading arm (17) comprises a main plate, an upper flat plate, a longitudinal vertical plate and a lower vertical plate; the main board is fixedly connected with a hub part of the suspension system through a hub bolt; the upper flat plate is connected with the vertical servo hydraulic actuator; the longitudinal vertical plate is connected with the longitudinal servo hydraulic actuator; the lower vertical plate is connected with the lateral servo hydraulic actuator.
2. The eight-channel multifunctional road simulation test bed as claimed in claim 1, further comprising a beam reinforcement seat (10), wherein the beam reinforcement seat (10) is fixed between the shock absorber fixing bracket base (11) and the suspension fixing base (8); the front vehicle body substitution plate (14) and the rear vehicle body substitution plate (16) are both arranged under the suspension fixing base (8) and are positioned right behind the front vehicle body substitution plate (14).
3. The eight-channel multifunctional road simulation test bed of claim 1, wherein the longitudinal servo hydraulic actuators comprise a longitudinal servo hydraulic actuator a (6) and a longitudinal servo hydraulic actuator b (7); the fixing seats of the longitudinal servo hydraulic actuator a (6) and the longitudinal servo hydraulic actuator b (7) are respectively and fixedly connected with the longitudinal counter-force seat (5); a loading seat of the longitudinal servo hydraulic actuator a (6) is connected with a longitudinal vertical plate of the four-degree-of-freedom loading arm (17); the four-degree-of-freedom loading arm (17) comprises two lower vertical plates, and the loading seat of the longitudinal servo hydraulic actuator b (7) is connected with the other lower vertical plate respectively.
4. The eight-channel multifunctional road simulation test bed as claimed in claim 1, wherein four suspension fixing brackets (15) are distributed and fixed on the vertical plate of the front vehicle body substitution plate (14) and the vertical plate of the rear vehicle body substitution plate (16) for fixing the suspension system to be tested.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010522164.6A CN111707482B (en) | 2020-06-10 | 2020-06-10 | Eight-channel multifunctional suspension road simulation test bed |
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| CN202010522164.6A CN111707482B (en) | 2020-06-10 | 2020-06-10 | Eight-channel multifunctional suspension road simulation test bed |
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| CN111707482B true CN111707482B (en) | 2022-07-12 |
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| CN112557067A (en) * | 2020-12-04 | 2021-03-26 | 广州橙行智动汽车科技有限公司 | Test apparatus and test method |
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2020
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109407A (en) * | 2011-03-07 | 2011-06-29 | 济南轻骑摩托车股份有限公司 | Fatigue durability vibrating test stand of motorcycle frame |
| CN103063447A (en) * | 2012-12-28 | 2013-04-24 | 浙江吉利汽车研究院有限公司杭州分公司 | Automobile test bench |
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Effective date of registration: 20231220 Address after: No.1, xinhongqi street, automobile economic and Technological Development Zone, Changchun, Jilin Province Patentee after: China Faw Co.,Ltd. Patentee after: CHANGCHUN AUTOMOTIVE TEST CENTER Co.,Ltd. Address before: 130011 No.1, xinhongqi street, Changchun automobile economic and Technological Development Zone, Changchun City, Jilin Province Patentee before: China Faw Co.,Ltd. |
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