CN111999022A - Suspension system test bed with adjustable rigidity of transverse plate spring - Google Patents
Suspension system test bed with adjustable rigidity of transverse plate spring Download PDFInfo
- Publication number
- CN111999022A CN111999022A CN202010954527.3A CN202010954527A CN111999022A CN 111999022 A CN111999022 A CN 111999022A CN 202010954527 A CN202010954527 A CN 202010954527A CN 111999022 A CN111999022 A CN 111999022A
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- plate spring
- rack
- spring clamp
- platform
- suspension system
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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
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0066—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by exciting or detecting vibration or acceleration
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
- G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a test bed of a suspension system with adjustable horizontal plate spring rigidity, which comprises a bed frame body and a test bed assembly which is arranged in the bed frame body and can move up and down in the bed frame body, wherein the test bed assembly comprises an upper platform, a lower platform and a stand column for connecting the upper platform and the lower platform which are horizontally arranged, a pressure weighing sensor is arranged on the upper platform, a carrying basket is placed on the upper platform, a first plate spring clamp and a second plate spring clamp are arranged on the lower platform for clamping a plate spring, the horizontal positions of the first plate spring clamp and the second plate spring clamp on the lower platform can be adjusted to form clamping on different positions of the plate spring, support tables are symmetrically arranged on two sides of the bed frame body, fixed blocks which are in sliding fit with the support tables are arranged on the support tables, and two end. According to the technical scheme, the optimal leaf spring stiffness under the current sprung mass can be obtained through the movement of the first leaf spring clamp and the second leaf spring clamp, and the self-adaptive adjustment of the stiffness of the suspension system is realized.
Description
Technical Field
The invention relates to the field of plate spring bench test tools, in particular to a test bench of a suspension system with adjustable rigidity of a transverse plate spring.
Background
The transverse plate spring is formed by mainly pasting a fiber reinforced composite material and a resin material based on a polyurethane matrix layer by layer, namely, a traditional spiral spring of a rear suspension elastic element is replaced by a transverse composite material leaf spring. Compared with the traditional spiral spring structure, the suspension system has the advantages of lighter weight, longer service life, smaller occupation of wheel arch space and the like, but also has the defects of hard suspension system, difficult adjustment to a larger degree and the like, so that higher requirements are provided for the active suspension system carrying the transverse plate spring. In order to realize the self-adaptive matching test of the rigidity of the plate spring and improve the test precision, the rigidity of different connection points needs to be verified, so that a bench static rigidity test needs to be carried out to observe the deformation conditions of the fixed points when the fixed points are subjected to different loads, pressure and tensile forces in different directions and the maximum pressure and tensile force which can be borne by the fixed points. Therefore, a static stiffness test bed with a transverse plate spring fixing point is needed to carry out all-directional test.
Disclosure of Invention
The invention aims to provide a test bed for a suspension system with an adjustable rigidity of a transverse plate spring, which can be used for carrying out rigidity tests on different fixed points of the plate spring.
In order to achieve the purpose, the invention adopts the following technical scheme: including rack frame body and set up the test bench assembly that just can reciprocate in rack frame body inside the rack frame body, test bench assembly include that the level arranges the upper mounting plate, lower platform and connect stand between them, the upper mounting plate on be equipped with pressure weighing sensor and the upper mounting plate on placed and carry the thing basket, lower platform on be equipped with the first leaf spring clamp that is used for the centre gripping leaf spring and the second leaf spring clamp, first leaf spring clamp and second leaf spring clamp the horizontal position adjustable in order to form the centre gripping to the different positions of leaf spring on the lower platform, rack frame body's bilateral symmetry is equipped with a supporting bench, a supporting bench on be equipped with and prop up supporting bench formation sliding fit's fixed block, two tip of leaf spring respectively with the draw-in groove block on the fixed block.
The upper platform on be equipped with bellied platform, pressure weighing sensor set up the four corners department at the platform, the thing basket arrange in on the pressure weighing sensor and be equipped with the guide post between thing basket and the upper platform, pressure weighing sensor link to each other with the controller, the guide post be diagonal angle arrangement and the guide post links firmly with the bottom of carrying the thing basket.
The lower platform is also provided with a driving mechanism for driving the first plate spring clamp and the second plate spring clamp to form constant-speed reverse motion, the driving mechanism comprises a first rack fixed with the first plate spring clamp, a driving gear meshed with the first rack, a first driving wheel coaxially arranged with the driving gear, a second driving wheel meshed with the first driving wheel, a driven gear coaxially arranged with the second driving wheel, and a second rack meshed with the driven gear and fixed with the second plate spring clamp, the numbers of teeth of the driving gear and the driven gear are the same, the numbers of teeth of the first driving wheel and the second driving wheel are the same, the first rack and the second rack are arranged in parallel along the length direction of the plate spring, the first rack and the second rack are respectively in sliding fit with the lower platform, the sliding direction of the first rack and the second rack are consistent with the length direction of the plate spring, and the first plate spring clamp and the second plate spring clamp are both positioned between the first rack and the second rack, the driving gear is connected with a stepping motor, and the stepping motor is connected with a controller.
The supporting table is characterized in that a strip-shaped groove is formed in the upper surface of the supporting table, the direction of the groove is consistent with the length direction of the plate spring, the fixing block is integrally arranged in the groove, the side edge of the fixing block abuts against the groove wall of the groove, rolling rollers rolling in the groove are arranged at the bottom of the fixing block, and a clamping groove matched with the end portion of the plate spring is formed in the upper surface of the fixing block.
The test bench assembly is characterized in that a first guide rail is arranged in the rack frame body in the vertical direction, a first sliding block matched with the first guide rail is fixed on the test bench assembly, and the first guide rail and the first sliding block are respectively provided with four groups.
The first plate spring clamp and the second plate spring clamp are arranged along the length direction of the plate spring, and the first plate spring clamp and the second plate spring clamp are symmetrically arranged along the center of the plate spring.
And a second sliding block and a third sliding block are respectively arranged at the bottoms of the first rack and the second rack, and a second guide rail and a third guide rail which are matched with the second sliding block and the third sliding block are respectively fixed on the lower platform.
The driving gear and the first driving wheel are respectively located on two sides of the driving gear shaft, two ends of the driving gear shaft are respectively fixed on the lower platform through first bearing seats, the driven gear and the second driving wheel are located on the same side of the driven gear shaft, and two ends of the driven gear shaft are respectively fixed on the lower platform through second bearing seats.
According to the technical scheme, the optimal leaf spring stiffness under the current sprung mass can be obtained through the movement of the first leaf spring clamp and the second leaf spring clamp, and the self-adaptive adjustment of the stiffness of the suspension system is realized.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic view of the mounting of the present invention gantry frame and test stand assembly.
Fig. 3 is a schematic structural view of the upper platform and the carrying basket of the present invention.
FIG. 4 is a schematic structural view of a test stand assembly of the present invention.
Fig. 5 is a schematic structural view of the driving mechanism of the present invention.
Fig. 6 is a schematic structural view of the fixing block of the present invention.
Fig. 7 is a state diagram of the use of the present invention.
The reference signs are: the test bed comprises a rack frame body 1, a first guide rail 11, a test bed assembly 2, an upper platform 21, a lower platform 22, a second guide rail 221, a third guide rail 222, a stand column 23, a pressure weighing sensor 24, a carrying basket 25, a platform 26, a guide column 27, a first sliding block 28, a first plate spring clamp 3, a second plate spring clamp 4, a supporting table 5, a groove 51, a fixing block 6, a clamping groove 61, a roller 62, a first rack 7, a driving gear shaft 70, a driving gear 71, a first transmission wheel 72, a second sliding block 73, a first bearing seat 74, a second rack 8, a driven gear shaft 80, a driven gear 81, a second transmission wheel 82, a third sliding block 83, a second bearing seat 84 and a plate spring 10.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1 and 7, the test bed for the suspension system with the adjustable rigidity of the transverse plate spring comprises a bed frame body 1 and a test bed assembly 2 which is arranged inside the bed frame body 1 and can move up and down in the bed frame body 1, specifically, a first guide rail 11 arranged in the bed frame body 1 in the vertical direction is arranged, a first sliding block 28 matched with the first guide rail 11 is fixed on the test bed assembly 2, the first guide rail 11 and the first sliding block 28 are respectively provided with four groups, specifically, the first guide rail 11 is provided with four groups in total and is fixed on the bed frame body 1, the test bed assembly 2 is also provided with four groups of first sliding blocks 28 matched with the first guide rail 11, two first sliding blocks 28 in each group are respectively provided, one first sliding block is connected with an upper platform 21, and the other sliding block is connected with a lower platform 22.
Further, as shown in fig. 2 and 3, the test bed assembly 2 includes an upper platform 21, a lower platform 22 and a vertical column 23 connecting the upper platform and the lower platform, the upper platform 21 is provided with a pressure weighing sensor 24, and a carrying basket 25 is placed on the upper platform 21. Specifically, be equipped with bellied platform 26 on the upper platform 21, pressure weighing sensor 24 sets up in the four corners department of platform 26, and load basket 25 is arranged in on pressure weighing sensor 24 and is equipped with guide post 27 between load basket 25 and the upper platform 21, and pressure weighing sensor 24 links to each other with the controller, and guide post 27 is diagonal arrangement and guide post 27 links firmly with the bottom of load basket 25. The pressure from the basket 25 is known by the pressure load cell 24 and is thus sprung.
Furthermore, the lower platform 22 is provided with a first plate spring clamp 3 and a second plate spring clamp 4 for clamping the plate spring 10, and the horizontal positions of the first plate spring clamp 3 and the second plate spring clamp 4 on the lower platform 22 can be adjusted to form clamping of different positions of the plate spring 10. The first leaf spring clamp 3 and the second leaf spring clamp 4 are provided along the longitudinal direction of the leaf spring 10, and the first leaf spring clamp 3 and the second leaf spring clamp 4 are provided symmetrically along the center of the leaf spring 10.
Further, as shown in fig. 4 and 5, the lower platform 22 is further provided with a driving mechanism for driving the first leaf spring clamp 3 and the second leaf spring clamp 4 to perform constant-speed reverse movement, wherein: the drive gear 71 and the driven gear 81 have the same number of teeth, and the first transmission gear 72 and the second transmission gear 82 have the same number of teeth. The driving mechanism comprises a first rack 7 fixed with the first plate spring clamp 3, a driving gear 71 meshed with the first rack 7, a first driving wheel 72 coaxially arranged with the driving gear, a second driving wheel 82 meshed with the first driving wheel 72, a driven gear 81 coaxially arranged with the second driving wheel 82, and a second rack 8 meshed with the driven gear 81 and fixed with the second plate spring clamp 4, the first rack 7 and the second rack 8 are arranged in parallel along the length direction of the plate spring 10, the first rack 7 and the second rack 8 are respectively in sliding fit with the lower platform 22, the sliding direction of the first rack is consistent with the length direction of the plate spring 10, the first plate spring clamp 3 and the second plate spring clamp 4 are both located between the first rack 7 and the second rack 8, the driving gear 71 is connected with a stepping motor, and the stepping motor is connected with a controller. Specifically, the stepping motor is used as a power source to provide power, the pinion shaft 70 is connected with an output shaft of the stepping motor, the pinion 71 on the pinion shaft 70 drives the first rack 7 to move and simultaneously transmits power to the driven gear shaft 80 through the first transmission wheel 72 and the second transmission wheel 73 with the same number of teeth, the driven gear 81 on the driven gear shaft 80 drives the second rack 8 to move, and the number of teeth of the driven gear 81 is the same as that of the pinion 71, so that the first rack 7 and the second rack 8 can form constant-speed reverse motion, the first plate spring clamp 3 and the second plate spring clamp 4 respectively connected with the first rack 7 and the second rack 8 can simultaneously and reversely move at the same speed, and the plate spring is moved to a position corresponding to the optimal plate spring stiffness under the current spring load to adjust the stiffness of the plate spring 10.
Specifically, the bottom of the first rack 7 and the bottom of the second rack 8 are respectively provided with a second slider 73 and a third slider 83, and the lower platform 22 is respectively fixed with a second guide rail 221 and a third guide rail 222 which are matched with the second slider 73 and the third slider 83. The driving gear 71 and the first driving wheel 72 are respectively located at two sides of the driving gear shaft 70, two ends of the driving gear shaft 70 are respectively fixed on the lower platform 22 through first bearing seats 74, the driven gear 81 and the second driving wheel 82 are located at the same side of the driven gear shaft 80, and two ends of the driven gear shaft 80 are respectively fixed on the lower platform 22 through second bearing seats 84.
Further, the bilateral symmetry of rack framework 1 is equipped with brace table 5, is equipped with on brace table 5 and forms sliding fit's fixed block 6 with brace table 5, and two tip of leaf spring 10 block with draw-in groove 61 on the fixed block 6 respectively. Specifically, a strip-shaped groove 51 is formed in the upper surface of the support table 5, the direction in which the groove 51 is formed is consistent with the length direction of the plate spring 10, the fixing block 6 is integrally arranged in the groove 51, the side edge of the fixing block 6 abuts against the groove wall of the groove 51, a roller 62 which rolls in the groove 51 is arranged at the bottom of the fixing block 6, and a clamping groove 61 which is matched with the end portion of the plate spring 10 is formed in the upper surface of the fixing block 6, as shown in fig. 6.
The working principle and the working process of the invention are as follows:
during testing, a loaded object is placed into the loading basket firstly, the quality of the loaded object transmits an electric signal to the controller through the pressure weighing sensor, the controller controls the step motor to act again, the driving gear shaft rotates, the driving gear drives the first rack to move, meanwhile, the first driving wheel on the driving gear shaft drives the second driving wheel to rotate, so that the driven gear rotates and drives the second rack to move simultaneously, when the first rack and the second rack move, the first plate spring clamp and the second plate spring clamp which are fixed with the first rack and the second rack respectively realize constant-speed reverse motion, and the driven gear moves to the position corresponding to the optimal plate spring rigidity under the spring load, and balance is achieved between automobile ride comfort and operation stability.
During actual use, the gear rack mechanism, the first plate spring clamp and the second plate spring clamp are mounted on a suspension system together, and the self-adaptive adjustment of the rigidity of the suspension system is achieved.
The invention has the beneficial effects that:
1) the test bed can change the position of a plate spring clamp through a motor-driven actuating mechanism only by mounting the plate spring once, measure the rigidity of the plate spring at different plate spring fixing points and can research the characteristics of the plate spring more conveniently;
2) the test bed can freely vibrate along with the plate spring in the vertical direction, so that the actual driving and actual vibration conditions of an automobile can be simulated more truly, and the dynamic test of the plate spring is realized;
3) the test bench can accurately control the position of the plate spring clamp through the stepping motor or the servo motor, so that the test precision is obviously improved;
4) the test bench has the advantages that the transverse degree of freedom is given to the two ends of the plate spring, and the two ends of the plate spring can move freely, so that the stress deformation of the plate spring is always in a natural state, the interference between all acting forces is avoided, the test result is more accurate, and the plate spring is not damaged during testing.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (8)
1. The utility model provides an adjustable suspension system test bench of horizontal leaf spring rigidity which characterized in that: comprises a rack frame body (1) and a test bed assembly (2) which is arranged in the rack frame body (1) and can move up and down in the rack frame body (1), wherein the test bed assembly (2) comprises an upper platform (21) and a lower platform (22) which are horizontally arranged and a stand column (23) for connecting the upper platform and the lower platform, a loading basket (25) is arranged on the upper platform (21) and a pressure weighing sensor (24) is arranged on the upper platform (21), a first plate spring clamp (3) and a second plate spring clamp (4) which are used for clamping a plate spring (10) are arranged on the lower platform (22), the horizontal positions of the first plate spring clamp (3) and the second plate spring clamp (4) on the lower platform (22) can be adjusted to form clamping for different positions of the plate spring (10), supporting tables (5) are symmetrically arranged on two sides of the rack frame body (1), and fixing blocks (6) which form sliding fit with the supporting tables (5) are arranged on, and two end parts of the plate spring (10) are respectively clamped with the clamping grooves (61) on the fixing block (6).
2. The test bed of a transverse leaf spring stiffness adjustable suspension system according to claim 1, wherein: go up platform (21) on be equipped with bellied platform (26), pressure weighing sensor (24) set up the four corners department at platform (26), load basket (25) arrange pressure weighing sensor (24) in and be equipped with between load basket (25) and last platform (21) guide post (27), pressure weighing sensor (24) link to each other with the controller, guide post (27) be the diagonal angle and arrange and guide post (27) and the bottom of load basket (25) link firmly.
3. The test bed of a transverse leaf spring stiffness adjustable suspension system according to claim 1, wherein: the lower platform (22) is also provided with a driving mechanism for driving the first plate spring clamp (3) and the second plate spring clamp (4) to form constant-speed reverse motion, the driving mechanism comprises a first rack (7) fixed with the first plate spring clamp (3), a driving gear (71) meshed with the first rack (7), a first driving wheel (72) coaxially arranged with the driving gear, a second driving wheel (82) meshed with the first driving wheel (72), a driven gear (81) coaxially arranged with the second driving wheel (82), and a second rack (8) meshed with the driven gear (81) and fixed with the second plate spring clamp (4), the first rack (7) and the second rack (8) are arranged in parallel along the length direction of the plate spring (10), and the first rack (7) and the second rack (8) are respectively in sliding fit with the lower platform (22), the sliding direction of the spring is consistent with the length direction of the plate spring (10), the first plate spring clamp (3) and the second plate spring clamp (4) are both located between the first rack (7) and the second rack (8), the driving gear (71) is connected with the stepping motor, and the stepping motor is connected with the controller.
4. The test bed of a transverse leaf spring stiffness adjustable suspension system according to claim 1, wherein: the supporting table is characterized in that a strip-shaped groove (51) is formed in the upper surface of the supporting table (5), the direction of the groove (51) is consistent with the length direction of the plate spring (10), the fixing block (6) is integrally arranged in the groove (51), the side edge of the fixing block (6) is abutted against the groove wall of the groove (51), rolling rollers (62) in the groove (51) are arranged at the bottom of the fixing block (6), and a clamping groove (61) matched with the end portion of the plate spring (10) is formed in the upper surface of the fixing block (6).
5. The test bed of a transverse leaf spring stiffness adjustable suspension system according to claim 1, wherein: the test bench is characterized in that a first guide rail (11) arranged in the vertical direction is arranged in the bench frame body (1), a first sliding block (28) matched with the first guide rail (11) is fixed on the test bench assembly (2), and the first guide rail (11) and the first sliding block (28) are respectively provided with four groups.
6. The test bed of a transverse leaf spring stiffness adjustable suspension system according to claim 1, wherein: the first plate spring clamp (3) and the second plate spring clamp (4) are arranged along the length direction of the plate spring (10), and the first plate spring clamp (3) and the second plate spring clamp (4) are symmetrically arranged along the center of the plate spring (10).
7. The test bed of a transverse leaf spring stiffness adjustable suspension system according to claim 3, wherein: the bottom of the first rack (7) and the bottom of the second rack (8) are respectively provided with a second sliding block (73) and a third sliding block (83), and the lower platform (22) is respectively fixed with a second guide rail (221) and a third guide rail (222) which are matched with the second sliding block (73) and the third sliding block (83).
8. The test bed of a transverse leaf spring stiffness adjustable suspension system according to claim 3, wherein: the driving gear (71) and the first driving wheel (72) are respectively located on two sides of the driving gear shaft (70), two ends of the driving gear shaft (70) are respectively fixed on the lower platform (22) through first bearing seats (74), the driven gear (81) and the second driving wheel (82) are located on the same side of the driven gear shaft (80), and two ends of the driven gear shaft (80) are respectively fixed on the lower platform (22) through second bearing seats (84).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010954527.3A CN111999022B (en) | 2020-09-11 | 2020-09-11 | Suspension system test bed with adjustable rigidity of transverse plate spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010954527.3A CN111999022B (en) | 2020-09-11 | 2020-09-11 | Suspension system test bed with adjustable rigidity of transverse plate spring |
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| CN111999022A true CN111999022A (en) | 2020-11-27 |
| CN111999022B CN111999022B (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010954527.3A Active CN111999022B (en) | 2020-09-11 | 2020-09-11 | Suspension system test bed with adjustable rigidity of transverse plate spring |
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| KR20080016286A (en) * | 2006-08-18 | 2008-02-21 | 현대자동차주식회사 | A stiffness control apparatus of a leaf spring |
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| CN107554644A (en) * | 2017-10-26 | 2018-01-09 | 苏州英诺达自动化科技有限公司 | A kind of small automobile-used multilayer objective tables of AGV |
| CN108297075A (en) * | 2018-04-28 | 2018-07-20 | 清华大学 | A kind of leaf spring type variation rigidity flexible actuator based on rack pinion |
| CN108714913A (en) * | 2018-06-06 | 2018-10-30 | 清华大学 | Variation rigidity flexible actuator |
| CN109269794A (en) * | 2018-11-11 | 2019-01-25 | 张群 | A kind of test method based on leaf springs of car test equipment |
| CN110196093A (en) * | 2019-06-14 | 2019-09-03 | 上海快仓智能科技有限公司 | A kind of AGV vehicle follows lift weighing system |
| CN110549806A (en) * | 2019-09-24 | 2019-12-10 | 合肥工业大学 | Automobile transverse plate spring suspension system with rigidity continuous adjustment function |
| CN110668370A (en) * | 2019-11-08 | 2020-01-10 | 苏州菲亚达液压升降机械有限公司 | Elevator with overweight alarming function |
| CN210502150U (en) * | 2019-08-16 | 2020-05-12 | 厦门金龙旅行车有限公司 | Leaf spring suspension of adjustable rigidity |
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2020
- 2020-09-11 CN CN202010954527.3A patent/CN111999022B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080016286A (en) * | 2006-08-18 | 2008-02-21 | 현대자동차주식회사 | A stiffness control apparatus of a leaf spring |
| EP2639087A1 (en) * | 2012-03-14 | 2013-09-18 | Fiat Group Automobiles S.p.A. | Vehicle wheel suspension with transverse leaf spring |
| CN104949830A (en) * | 2015-07-06 | 2015-09-30 | 湖南湖大艾盛汽车技术开发有限公司 | Test bed for leaf spring for automobile suspension |
| CN106197984A (en) * | 2016-08-22 | 2016-12-07 | 安徽江淮汽车股份有限公司 | A kind of leaf spring bearing up-down force bench test device |
| CN107554644A (en) * | 2017-10-26 | 2018-01-09 | 苏州英诺达自动化科技有限公司 | A kind of small automobile-used multilayer objective tables of AGV |
| CN108297075A (en) * | 2018-04-28 | 2018-07-20 | 清华大学 | A kind of leaf spring type variation rigidity flexible actuator based on rack pinion |
| CN108714913A (en) * | 2018-06-06 | 2018-10-30 | 清华大学 | Variation rigidity flexible actuator |
| CN109269794A (en) * | 2018-11-11 | 2019-01-25 | 张群 | A kind of test method based on leaf springs of car test equipment |
| CN110196093A (en) * | 2019-06-14 | 2019-09-03 | 上海快仓智能科技有限公司 | A kind of AGV vehicle follows lift weighing system |
| CN210502150U (en) * | 2019-08-16 | 2020-05-12 | 厦门金龙旅行车有限公司 | Leaf spring suspension of adjustable rigidity |
| CN110549806A (en) * | 2019-09-24 | 2019-12-10 | 合肥工业大学 | Automobile transverse plate spring suspension system with rigidity continuous adjustment function |
| CN110668370A (en) * | 2019-11-08 | 2020-01-10 | 苏州菲亚达液压升降机械有限公司 | Elevator with overweight alarming function |
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| Publication number | Publication date |
|---|---|
| CN111999022B (en) | 2022-06-14 |
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