CN106840712B - Multipurpose suspension performance and durability test stand - Google Patents
Multipurpose suspension performance and durability test stand Download PDFInfo
- Publication number
- CN106840712B CN106840712B CN201710227522.9A CN201710227522A CN106840712B CN 106840712 B CN106840712 B CN 106840712B CN 201710227522 A CN201710227522 A CN 201710227522A CN 106840712 B CN106840712 B CN 106840712B
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- 239000000725 suspension Substances 0.000 title claims abstract description 78
- 238000012360 testing method Methods 0.000 title claims abstract description 71
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910052742 iron Inorganic materials 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 claims description 21
- 239000006096 absorbing agent Substances 0.000 claims description 9
- 230000035939 shock Effects 0.000 claims description 9
- 230000001133 acceleration Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000037396 body weight Effects 0.000 claims 1
- 230000000712 assembly Effects 0.000 abstract description 12
- 238000000429 assembly Methods 0.000 abstract description 12
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000011056 performance test Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/04—Suspension or damping
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
A multi-purpose suspension performance and durability test stand, the test stand comprising: the test bench comprises a test bench body, hydraulic servo actuator assemblies, tested suspensions and a control system, wherein the hydraulic servo actuator assemblies are symmetrically arranged on the iron floor of the test bench body and on two sides of a flexible vehicle, the tested suspensions are arranged on the two sides of the test bench body and above the hydraulic servo actuator assemblies, and the control system controls the hydraulic servo actuator assemblies. The test bed has the advantages of simple and reasonable overall structure, easy operation and convenient maintenance.
Description
Technical Field
The invention belongs to the technical field of automotive suspensions, and particularly relates to a test device for testing suspension performance and durability, namely a multipurpose suspension performance and durability test bed.
Background
At present, a suspension test bed which is independently developed in China is few, and only can be used for a suspension durability test, and a suspension performance test cannot be performed. The existing suspension durability test equipment also has certain defects and shortcomings, and the defects are specifically shown in the following steps: (1) the suspension is arranged on a fixing device, and the tested suspension cannot be subjected to actual working condition test, so that a test conclusion has limitation and inaccuracy; (2) only a durability test of a certain component of the suspension can be performed;
therefore, a novel multipurpose suspension performance and durability test bed is developed, and the suspension to be tested is installed on the vehicle body, so that the test working condition of the suspension to be tested accords with the actual working condition. It is necessary to perform a performance test of a suspension system, a performance test of a suspension member such as a damper, and a durability test of a suspension.
Disclosure of Invention
The invention aims to solve the technical problems of single function, limitation and inaccuracy of test conclusion and the like in the existing suspension design, and provides a multipurpose suspension performance and durability test bed which provides a test condition which enables a tested suspension to meet actual working conditions, and has special suspension test bed in the aspects of test content, test method, installation, operation, maintenance and the like so as to meet the requirements of suspension performance tests and durability tests.
In order to achieve the above purpose, the present invention is realized by the following technical scheme:
a multi-purpose suspension performance and durability test stand, the test stand comprising: the test bench comprises a test bench body, hydraulic servo actuator assemblies, tested suspensions and a control system, wherein the hydraulic servo actuator assemblies are symmetrically arranged on the iron floor of the test bench body and on two sides of a flexible vehicle body, the tested suspensions are arranged on two sides of the test bench body and above the hydraulic servo actuator assemblies, and the control system controls the hydraulic servo actuator assemblies.
The test bench main part include: flexible car body, mass block, inclination sensor, acceleration sensor, car body upper guide bar connecting piece base, car body upper guide bar connecting piece base, car body lower guide bar connecting piece, car body lower guide bar connecting piece base, installation box base, iron floor, supporting box and supporting box base.
The vehicle body counterweight mass block is arranged on the flexible vehicle body, the inclination angle sensor and the acceleration sensor are arranged on the counterweight mass block, one end of the flexible vehicle body is connected with the vehicle body upper guide rod connecting piece base, the vehicle body upper guide rod connecting piece base is connected with the vehicle body upper guide rod connecting piece through a vehicle body upper guide rod, the vehicle body upper guide rod connecting piece is connected with the vehicle body upper guide rod connecting piece base, and the vehicle body upper guide rod connecting piece base is connected above the installation box body; the flexible vehicle body is also connected with a vehicle body lower guide rod connecting piece base, the vehicle body lower guide rod connecting piece base is connected with a vehicle body lower guide rod connecting piece, two ends of the vehicle body lower guide rod are connected with the vehicle body lower guide rod connecting piece and the vehicle body lower guide rod connecting piece, the vehicle body lower guide rod connecting piece is connected with the vehicle body lower guide rod connecting piece base, and the vehicle body lower guide rod connecting piece base is connected below the installation box body; the installation box body is arranged on the installation box body base, and the installation box body base is fixedly connected to the iron floor; the support box body is connected below the flexible car body, the support box body base is arranged below the support box body, and the support box body base is arranged on the iron floor.
The hydraulic servo actuator assembly comprises: the hydraulic servo actuators and the wheel loading carrier disc are symmetrically arranged on two sides of the flexible car body and are fixedly connected on the iron floor; the wheel loading disc is arranged above the hydraulic servo actuator.
The suspension to be tested comprises: the suspension body to be tested, the lower arm mounting seat, the upper arm mounting seat and the shock absorber mounting seat are sequentially connected to the suspension body to be tested from bottom to top; the lower arm mounting seat, the upper arm mounting seat and the shock absorber mounting seat are also respectively connected with the flexible vehicle body.
The control system comprises: the hydraulic servo control system, the data acquisition system and the industrial computer are connected through transmission cables.
The beneficial effects of the invention are as follows:
1. the test bed can perform performance tests and durability tests of the same-axis double-side suspension, performance and durability tests of a quarter suspension, static tests of the suspension, suspension system characteristic tests, performance and durability tests of a shock absorber and smoothness tests close to the shape of a whole vehicle under the condition that the tested suspension accords with actual working conditions.
2. The flexible car body on the test bed can be provided with a plurality of suspensions in different forms. When the hydraulic servo actuator vertically loads the wheels, the vehicle body guiding system realizes the vertical movement of the vehicle body and the rolling movement of the vehicle body. The method can perform related performance tests and durability tests on the suspension under the simulated running condition of the vehicle. The measuring precision is high, and the repeatability is good.
3. The mounting positions of the guide rods of the vehicle body on the test bed can be adjusted, and the adjustment method is simple and is easy to adapt to suspension systems of different vehicle types.
4. The test bed suspension is simple and convenient to install, and only the connecting pieces in different forms are manufactured according to the suspensions of different vehicle types to be connected with the vehicle body.
5. The test bed has the advantages of simple and reasonable overall structure, easy operation and convenient maintenance.
Drawings
Fig. 1 is an isometric view of the present invention in a non-operative state.
Fig. 2 is an isometric view of the invention in fig. 1 after the support housing has been disassembled and removed.
Fig. 3 is an isometric view of the invention in an uninstalled tested suspension.
Fig. 4 is another angular perspective view of fig. 3 of the present invention.
Fig. 5 is a schematic diagram of a suspension under test in accordance with the present invention.
Figure 6 is an isometric view of the invention in operation testing a quarter suspension.
Fig. 7 is a block diagram of the control system of the present invention.
Detailed Description
The details and operation of the invention are further described below with reference to the accompanying drawings.
As shown in fig. 1 and 2: a multi-purpose suspension performance and durability test stand, the test stand comprising: the test bench comprises a test bench body 1, hydraulic servo actuator assemblies 2, tested suspensions 3 and a control system 4, wherein the hydraulic servo actuator assemblies 2 are symmetrically arranged on iron floors 1-16 of the test bench body 1 and on two sides of a flexible vehicle body 1-1, the tested suspensions 3 are arranged on two sides of the test bench body 1 and above the hydraulic servo actuator assemblies 2, and the control system 4 controls the hydraulic servo actuator assemblies 2.
As shown in fig. 3 and 4: the test stand body 1 includes: the flexible car body 1-1, the mass block 1-2 (two pieces), the inclination sensor 1-3, the acceleration sensor 1-4, the car body upper guide rod connector base 1-5, the car body upper guide rod 1-6 (two pieces), the car body upper guide rod connector 1-7 (four pieces), the car body upper guide rod connector base 1-8, the car body lower guide rod connector base 1-9, the car body lower guide rod connector 1-10, the car body lower guide rod 1-11 (two pieces), the car body lower guide rod connector 1-12 (two pieces), the car body lower guide rod connector base 1-13, the mounting box body 1-14, the mounting box body base 1-15, the iron floor 1-16, the supporting box body 1-17 and the supporting box body base 1-18.
The vehicle body counterweight mass block 1-2 is arranged on the flexible vehicle body 1-1, the inclination angle sensor 1-3 and the acceleration sensor 1-4 are arranged on the counterweight mass block 1-2, one end of the flexible vehicle body 1-1 is connected with the vehicle body guide rod connecting piece base 1-5, the vehicle body upper guide rod connecting piece base 1-5 is connected with the vehicle body upper guide rod connecting piece 1-7 through the vehicle body upper guide rod 1-6, the vehicle body upper guide rod connecting piece 1-7 is connected with the vehicle body upper guide rod connecting piece base 1-8, and the vehicle body upper guide rod connecting piece base 1-8 is connected above the installation box body 1-14; the flexible automobile body 1-1 is also connected with an automobile body lower guide rod connecting piece base 1-9, the automobile body lower guide rod connecting piece base 1-9 is connected with an automobile body lower guide rod connecting piece 1-10, two ends of the automobile body lower guide rod 1-11 are connected with the automobile body lower guide rod connecting piece 1-10 and the automobile body lower guide rod connecting piece 1-12, the automobile body lower guide rod connecting piece 1-12 is connected with an automobile body lower guide rod connecting piece base 1-13, and the automobile body lower guide rod connecting piece base 1-13 is connected below the installation box body 1-14; the installation box body 1-14 is arranged on the installation box body base 1-15, and the installation box body base 1-15 is fixedly connected to the iron floor 1-16; the supporting box body 1-17 is connected below the flexible car body 1-1, the supporting box body base 1-18 is arranged below the supporting box body 1-17, and the supporting box body base 1-18 is arranged on the iron floor 1-16.
The hydraulic servo actuator assembly 2 includes: the hydraulic servo actuators 2-1 (an actuator integrated force sensor and a displacement sensor) and the wheel loading carrier disc 2-2, wherein the hydraulic servo actuators 2-1 are symmetrically arranged on two sides of the flexible vehicle body 1-1 and are fixedly connected on the iron floor 1-16; the wheel loading plate 2-2 is disposed above the hydraulic servo actuator 2-1.
As shown in fig. 1 and 5: the suspension 3 to be tested comprises: the suspension body 3-1 to be tested (the figure 5 of the invention is a suspension schematic diagram), a lower arm mounting seat 3-2, an upper arm mounting seat 3-3 and a shock absorber mounting seat 3-4, wherein the lower arm mounting seat 3-2, the upper arm mounting seat 3-3 and the shock absorber mounting seat 3-4 are sequentially connected to the suspension body 3-1 to be tested from bottom to top; the lower arm mounting seat 3-2, the upper arm mounting seat 3-3 and the shock absorber mounting seat 3-4 are also respectively connected with the flexible vehicle body 1-1.
As shown in fig. 1 and 7: the control system 4 includes: the hydraulic servo control system 4-1, the data acquisition system 4-2 and the industrial computer 4-3 are connected through transmission cables.
In connection with fig. 3, the device flexible body 1-1 may be fitted with a mass 1-2 so that the total mass of the flexible body 1-1 and mass 1-2 corresponds to the sprung mass of the suspension being tested when mounted on an actual vehicle.
Referring to fig. 3 and 4, the flexible vehicle body 1-1 is fixed by the supporting case 1-17 and the supporting case base 1-18. The flexible vehicle body 1-1 is connected with the installation box body 1-14 through the upper vehicle body guide rod 1-6 and the lower vehicle body guide rod 1-11; the automobile body upper guide rod connecting piece base 1-5, the automobile body upper guide rod connecting piece base 1-8, the automobile body lower guide rod connecting piece base 1-9, the automobile body lower guide rod connecting piece base 1-13, the flexible automobile 1-1 and the installation box body 1-14 are all designed with T-shaped grooves, so that the installation positions of the automobile body upper guide rod and the automobile body lower guide rod can be flexibly adjusted in space to adapt to different tested suspensions. The freedom degree of the vehicle body is limited by the vehicle body guide rod, so that the vehicle body can perform vertical (Z direction) movement and vehicle body rolling movement when the performance test or the durability test is performed on the suspension. And the vehicle body guide rod can control the relative positions of the tire and the wheel loading disc 2-2 in the test process, and the tire and the wheel loading disc 2-2 do not need to be fixed. The device enables the test working condition of the tested suspension to be consistent with the actual working condition when the suspension is tested. The accuracy and the test precision of the test are greatly improved.
With reference to fig. 1 and 3, the installation position of the hydraulic servo actuator 2-1 can be simply and conveniently adjusted, and the hydraulic servo actuator is suitable for tested suspensions with different wheel tracks and different forms.
With reference to fig. 3 and 5, a suspension mounting member is manufactured according to a suspension to be tested (fig. 5 is a schematic view of a suspension), and the suspension to be tested can be conveniently mounted on a vehicle body. Therefore, the device can be used for manufacturing the suspension mounting piece only according to different suspensions to be tested, and the use cost of the device is reduced.
With reference to fig. 3 and 5, after the suspension 3-1 to be tested is installed, the hydraulic servo actuator 2-1 is used for providing static support for the suspension, and the supporting box body 1-17 is disassembled and removed, so that the related test of the suspension can be performed. The test mode is that the hydraulic servo actuator is used for loading vertical (Z direction) force to the wheels, and the loading force can be acquired through a real vehicle and also can be input randomly. And parameters such as loading force, loading frequency, loading displacement, vehicle body inclination angle and vehicle body acceleration are collected in the test process. Calculating to obtain performance data of the suspension by using the acquired information and the inherent information; the durability data of the suspension is obtained by loading the suspension to be tested for a prescribed number of times.
Referring to fig. 6, the flexible vehicle body 1-1 is rigidly connected to the iron floor through the supporting box body 1-17 and the supporting box body base 1-18, so that the test of the quarter suspension can be performed, and the specific test method is the same as above and is not repeated.
The foregoing is only for illustrating the present invention, and the structure, connection manner, calculation method, etc. of each component may be changed, and all equivalent changes and modifications performed on the basis of the technical solution of the present invention should not be excluded from the protection scope of the present invention.
Claims (3)
1. A multipurpose suspension performance and durability test bed is characterized in that: the test stand comprises: the hydraulic servo actuator assembly (2) is symmetrically arranged on the iron floor (1-16) of the test bed body (1) and on two sides of the flexible car body (1-1), the tested suspension (3) is arranged on two sides of the test bed body (1) and above the hydraulic servo actuator assembly (2), and the control system (4) controls the hydraulic servo actuator assembly (2);
the test stand main body (1) comprises: a flexible vehicle body (1-1), a vehicle body weight block (1-2), an inclination angle sensor (1-3), an acceleration sensor (1-4), a first vehicle body guide rod connector base (1-5), a vehicle body upper guide rod (1-6), a vehicle body upper guide rod connector (1-7), a second vehicle body guide rod connector base (1-8), a first vehicle body lower guide rod connector base (1-9), a vehicle body lower guide rod connector (1-10), a vehicle body lower guide rod (1-11), a vehicle body lower guide pull rod connector (1-12), a second vehicle body lower guide rod connector base (1-13), a mounting box body (1-14), a mounting box body base (1-15), an iron floor (1-16), a supporting box body (1-17) and a supporting box body base (1-18); the vehicle body counterweight mass block (1-2) is arranged on the flexible vehicle body (1-1), the inclination angle sensor (1-3) and the acceleration sensor (1-4) are arranged on the vehicle body counterweight mass block (1-2), one end of the flexible vehicle body (1-1) is connected with the first vehicle body guide rod connecting piece base (1-5), the first vehicle body guide rod connecting piece base (1-5) is connected with the vehicle body upper guide rod connecting piece (1-7) through the vehicle body upper guide rod (1-6), the vehicle body upper guide rod connecting piece (1-7) is connected with the second vehicle body guide rod connecting piece base (1-8), and the second vehicle body guide rod connecting piece base (1-8) is connected above the installation box (1-14); the flexible automobile body (1-1) is further connected with a first automobile body lower guide rod connecting piece base (1-9), the first automobile body lower guide rod connecting piece base (1-9) is connected with an automobile body lower guide rod connecting piece (1-10), two ends of an automobile body lower guide rod (1-11) are connected with the automobile body lower guide rod connecting piece (1-10) and the automobile body lower guide pull rod connecting piece (1-12), the automobile body lower guide pull rod connecting piece (1-12) is connected with a second automobile body lower guide rod connecting piece base (1-13), and the second automobile body lower guide rod connecting piece base (1-13) is connected below the installation box body (1-14); the installation box body (1-14) is arranged on the installation box body base (1-15), and the installation box body base (1-15) is fixedly connected to the iron floor (1-16); the supporting box body (1-17) is connected below the flexible car body (1-1), the supporting box body base (1-18) is arranged below the supporting box body (1-17), and the supporting box body base (1-18) is arranged on the iron floor (1-16);
the suspension (3) to be tested comprises: the device comprises a suspension body to be tested (3-1), a lower arm mounting seat (3-2), an upper arm mounting seat (3-3) and a shock absorber mounting seat (3-4), wherein the lower arm mounting seat (3-2), the upper arm mounting seat (3-3) and the shock absorber mounting seat (3-4) are sequentially connected to the suspension body to be tested (3-1) from bottom to top; the lower arm mounting seat (3-2), the upper arm mounting seat (3-3) and the shock absorber mounting seat (3-4) are also respectively connected with the flexible vehicle body (1-1).
2. The multi-purpose suspension performance and durability test stand according to claim 1 wherein: the hydraulic servo actuator assembly (2) comprises: the hydraulic servo actuators (2-1) and the wheel loading disc (2-2), wherein the hydraulic servo actuators (2-1) are symmetrically arranged on two sides of the flexible vehicle body (1-1) and are fixedly connected on the iron floor (1-16); the wheel loading disc (2-2) is arranged above the hydraulic servo actuator (2-1); the hydraulic servo actuator is connected with the constant-pressure hydraulic servo pump station through a hydraulic pipeline.
3. The multi-purpose suspension performance and durability test stand according to claim 1 wherein: the control system (4) comprises: the hydraulic servo control system (4-1), the data acquisition system (4-2) and the industrial computer (4-3) are connected through transmission cables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710227522.9A CN106840712B (en) | 2017-04-10 | 2017-04-10 | Multipurpose suspension performance and durability test stand |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710227522.9A CN106840712B (en) | 2017-04-10 | 2017-04-10 | Multipurpose suspension performance and durability test stand |
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| Publication Number | Publication Date |
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| CN106840712A CN106840712A (en) | 2017-06-13 |
| CN106840712B true CN106840712B (en) | 2023-10-31 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782569B (en) * | 2017-11-03 | 2019-12-24 | 山东雷帕得汽车技术股份有限公司 | Universal test platform for three-axis six-channel suspension |
| CN108332981A (en) * | 2018-04-09 | 2018-07-27 | 广西汽车集团有限公司 | Test tool for automotive suspension performance test |
| CN108931382B (en) * | 2018-06-01 | 2020-09-04 | 湖南湖大艾盛汽车技术开发有限公司 | Fatigue endurance testing device and method for multi-connecting-rod rear suspension axle housing assembly |
| CN117760752B (en) * | 2023-12-13 | 2024-08-06 | 燕山大学 | Electro-hydraulic servo active suspension experiment platform and fault diagnosis method |
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| EP0199317A2 (en) * | 1985-04-25 | 1986-10-29 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Test stand for investigating the reliability of motor vehicle components |
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