CN111638071B - Durability test bench for non-independent suspension - Google Patents
Durability test bench for non-independent suspension Download PDFInfo
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- CN111638071B CN111638071B CN202010534065.XA CN202010534065A CN111638071B CN 111638071 B CN111638071 B CN 111638071B CN 202010534065 A CN202010534065 A CN 202010534065A CN 111638071 B CN111638071 B CN 111638071B
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- 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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Abstract
A non-independent suspension durability test stand comprising: the device comprises a base and two portal frames fixed on the base, wherein a cross beam of each portal frame is fixedly connected with the top of an actuator, the bottom of each actuator is fixedly connected with the top of a loading tool, one side of the left loading tool is fixedly connected with a hub of a non-independent suspension to be tested through a bolt, and the other side of the loading tool is in vertical sliding fit with a limiting column. This design not only this design structural design is reasonable, effective simulation operating mode, and application scope is wide, effectively reduces experimental expense moreover, shortens test cycle.
Description
Technical Field
The invention relates to a durability test bench for a non-independent suspension, which is particularly suitable for testing the reliability of the whole non-independent suspension system.
Background
With the increasing of the total national economy of China in recent years, the demand of light commercial vehicles is increased year by year. As a production tool, the reliability requirement of users on light commercial vehicles is higher and higher, the vehicles which are safe, comfortable, reliable and strong in bearing capacity are expected to be bought, and the reliability of a suspension system is a very important part of the reliability of the whole vehicle. How to verify the reliability of a suspension system more efficiently and comprehensively is a subject of intensive research.
The verification aiming at the non-independent suspension at the present stage mainly focuses on part/assembly verification and whole vehicle road test. For example, the standard GB/T19844-2005 (the fatigue life of the leaf spring part is not less than 8 ten thousand times under the test conditions that the stress amplitude is 323.62MPa and the maximum stress is 833.5 MPa); the whole vehicle road test standard refers to GB/T12534-1990 (medium truck suspension system verification needs 1500km mountain roads, 3500km bad roads and 1000km flat roads) and related enterprise standards. The part test only examines the reliability of a single part or assembly and cannot well relate the service life of the part to the whole vehicle; the whole vehicle road test has the advantages of long period, high cost, less sample amount and relatively poor consistency of test results.
Disclosure of Invention
The invention aims to overcome the problem of lack of a durability test device in the prior art, and provides a non-independent suspension durability test bench.
In order to achieve the above purpose, the technical solution of the invention is as follows:
a non-independent suspension durability test stand, comprising: the left side of the left loading tool is fixedly connected with a left hub of a non-independent suspension to be tested through a bolt, and the left side of the left loading tool is in sliding fit with a left limiting column along the vertical direction;
the cross beam of the right portal frame is fixedly connected with the top of a right actuator, the bottom of the right actuator is fixedly connected with the top of a right loading tool, the left side of the right loading tool is fixedly connected with a right hub of the dependent suspension to be tested through a bolt, and the right side of the right loading tool is in sliding fit with a right limiting column along the vertical direction;
the left portal frame is identical to the right portal frame in structure, the left actuator is identical to the right actuator in structure, the left loading tool is identical to the right loading tool in structure, and the left limiting column is identical to the right limiting column in structure.
The beam of the left portal frame is fixed on the upright post of the left portal frame through a bolt, the beam of the right portal frame is fixed on the upright post of the right portal frame through a bolt, and the fixed heights of the beams of the left portal frame and the right portal frame can be adjusted by adjusting the fixed positions of the bolts;
the upright posts of the left portal frame and the right portal frame are fixed on the base through bolts, and the fixing positions of the upright posts of the left portal frame and the right portal frame can be adjusted by adjusting the fixing positions of the bolts;
the left limiting column and the right limiting column are fixed on the base through bolts, and the fixing positions of the left limiting column and the right limiting column can be adjusted through adjusting the fixing positions of the bolts.
The left loading tool comprises a top plate and two side plates vertically connected with the top plate, a hub fixing plate is fixedly connected between the two side plates, the top of the hub fixing plate is vertically connected with the bottom of the top plate, a chute plate is arranged on the top plate close to a left limiting column, and a vertical limiting chute is arranged on the chute plate;
the left limiting column is fixed on the base, a limiting sliding block is fixed on the left limiting column, the limiting sliding block is arranged in the limiting sliding groove, and the limiting sliding block is in sliding fit with the limiting sliding groove along the vertical direction.
The left loading tool further comprises a transmission cross rod, two ends of the transmission cross rod are fixedly connected with the middle of the top plate through fixing lugs, the end portion of the left actuator power output rod is sleeved on the transmission cross rod, and the end portion of the left actuator power output rod is in rotating fit with the transmission cross rod.
Compared with the prior art, the invention has the following beneficial effects:
1. the durability test bench for the non-independent suspension integrates and examines the reliability and durability of the whole non-independent suspension, the non-independent suspension system is used for overall examination, the stress mode and the motion of the system consisting of the axle, the frame and the steel plate spring are closer to the simulation of a real vehicle, most parts of the whole suspension system can be examined, the test is closer to the actual working condition of the whole vehicle, and the reliability of the test is effectively improved. Therefore, the design test simulates the actual working condition and effectively improves the reliability of the test.
2. The design of the limiting column in the non-independent suspension durability test bench enables the actuator to keep a straight-up and straight-down action track, and effectively simulates the actual working condition of the suspension. And the designed portal frame and the position of the limit column are adjustable, and the design can meet the test requirements of suspension systems with different specifications and sizes. Therefore, the design structure is reasonable in design, practical working conditions are effectively simulated, and the application range is wide.
3. The non-independent suspension durability test bench provided by the invention utilizes a bench test to replace a road test, so that the test period is shortened, the test cost is reduced, the test sample is expanded, and the consistency of the test result is good and the repeatability is high. Therefore, the design effectively reduces the test expenditure and shortens the test period.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural diagram of the left loading tool in fig. 1.
Fig. 3 is a schematic structural view of the left limiting column in fig. 1.
FIG. 4 is a schematic view of the left actuator of FIG. 1 in a fixed position.
FIG. 5 is a schematic diagram of the non-independent suspension to be tested in FIG. 1.
In the figure: the test device comprises a base 1, a left portal frame 2, a left actuator 3, a left loading tool 4, a top plate 41, a side plate 42, a hub fixing plate 43, a chute plate 44, a limiting chute 45, a transmission cross rod 46, a fixing lug 47, a left limiting column 5, a limiting slide block 51, a right portal frame 6, a right actuator 7, a right loading tool 8, a right limiting column 9 and a non-independent suspension 10 to be tested.
Detailed Description
The invention is described in further detail below with reference to the figures and the detailed description of the invention.
Referring to fig. 1 to 5, a non-independent suspension durability test stand includes: the device comprises a base 1, a left portal frame 2 and a right portal frame 6 which are fixed on the base 1, wherein a cross beam of the left portal frame 2 is fixedly connected with the top of a left actuator 3, the bottom of the left actuator 3 is fixedly connected with the top of a left loading tool 4, the right side of the left loading tool 4 is fixedly connected with a left hub of a non-independent suspension 10 to be tested through a bolt, and the left side of the left loading tool 4 is in sliding fit with a left limiting column 5 along the vertical direction;
the cross beam of the right portal frame 6 is fixedly connected with the top of a right actuator 7, the bottom of the right actuator 7 is fixedly connected with the top of a right loading tool 8, the left side of the right loading tool 8 is fixedly connected with a right hub of a non-independent suspension 10 to be tested through a bolt, and the right side of the right loading tool 8 is in sliding fit with a right limiting column 9 along the vertical direction;
the left portal frame 2 is identical to the right portal frame 2 in structure, the left actuator 3 is identical to the right actuator 7 in structure, the left loading tool 4 is identical to the right loading tool 8 in structure, and the left limiting column 5 is identical to the right limiting column 9 in structure.
The beam of the left portal frame 2 is fixed on the upright post of the left portal frame 2 through a bolt, the beam of the right portal frame 6 is fixed on the upright post of the right portal frame 6 through a bolt, and the fixed heights of the beams of the left portal frame 2 and the right portal frame 6 can be adjusted by adjusting the fixed positions of the bolts;
the upright posts of the left portal frame 2 and the right portal frame 6 are fixed on the base 1 through bolts, and the fixing positions of the upright posts of the left portal frame 2 and the right portal frame 6 can be adjusted by adjusting the fixing positions of the bolts;
the left limiting column 5 and the right limiting column 9 are fixed on the base 1 through bolts, and the fixing positions of the left limiting column 5 and the right limiting column 9 can be adjusted through adjusting the fixing positions of the bolts.
The left loading tool 4 comprises a top plate 41 and two side plates 42 vertically connected with the top plate, a hub fixing plate 43 is fixedly connected between the two side plates 42, the top of the hub fixing plate 43 is vertically connected with the bottom of the top plate 41, a sliding groove plate 44 is arranged on the top plate 41 near the left limiting column 5, and a vertical limiting sliding groove 45 is arranged on the sliding groove plate 44;
the left limiting column 5 is fixed on the base 1, a limiting slide block 51 is fixed on the left limiting column 5, the limiting slide block 51 is arranged in the limiting slide groove 45, and the limiting slide block 51 is in sliding fit with the limiting slide groove 45 along the vertical direction.
The left loading tool 4 further comprises a transmission cross rod 46, two ends of the transmission cross rod 46 are fixedly connected with the middle of the top plate 41 through fixing lugs 47, the end of the power output rod of the left actuator 3 is sleeved on the transmission cross rod 46, and the end of the power output rod of the left actuator 3 is in rotating fit with the transmission cross rod 46.
The principle of the invention is illustrated as follows:
light-duty commercial car adopts non-independent suspension system more, and its structure includes: the left and right plate spring assemblies, the front and rear lifting lugs, the front and rear plate spring pins, the front and rear lifting lug supports, the rubber bushings, the U-shaped bolts and the nuts are assembled on the frame and the axle to form the whole non-independent suspension 10 to be tested.
Example 1:
a non-independent suspension durability test stand, comprising: the device comprises a base 1, a left portal frame 2 and a right portal frame 6 which are fixed on the base 1, wherein a cross beam of the left portal frame 2 is fixedly connected with the top of a left actuator 3, the bottom of the left actuator 3 is fixedly connected with the top of a left loading tool 4, the right side of the left loading tool 4 is fixedly connected with a left hub of a non-independent suspension 10 to be tested through a bolt, and the left side of the left loading tool 4 is in sliding fit with a left limiting column 5 along the vertical direction; the cross beam of the right portal frame 6 is fixedly connected with the top of a right actuator 7, the bottom of the right actuator 7 is fixedly connected with the top of a right loading tool 8, the left side of the right loading tool 8 is fixedly connected with a right hub of a non-independent suspension 10 to be tested through a bolt, and the right side of the right loading tool 8 is in sliding fit with a right limiting column 9 along the vertical direction; the left portal frame 2 and the right portal frame 2 are identical in structure, the left actuator 3 and the right actuator 7 are identical in structure, the left loading tool 4 and the right loading tool 8 are identical in structure, and the left limiting column 5 and the right limiting column 9 are identical in structure; the left loading tool 4 comprises a top plate 41 and two side plates 41 vertically connected with the top plate, a hub fixing plate 43 is fixedly connected between the two side plates 41, the top of the hub fixing plate 43 is vertically connected with the bottom of the top plate 41, a sliding groove plate 44 is arranged on the top plate 41 near the left limiting column 5, and a vertical limiting sliding groove 45 is arranged on the sliding groove plate 44; the left limiting column 5 is fixed on the base 1, a limiting slide block 51 is fixed on the left limiting column 5, the limiting slide block 51 is arranged in the limiting slide groove 45, and the limiting slide block 51 is in sliding fit with the limiting slide groove 45 along the vertical direction.
Example 2:
example 2 is substantially the same as example 1 except that:
the beam of the left portal frame 2 is fixed on the upright post of the left portal frame 2 through a bolt, the beam of the right portal frame 6 is fixed on the upright post of the right portal frame 6 through a bolt, and the fixed heights of the beams of the left portal frame 2 and the right portal frame 6 can be adjusted by adjusting the fixed positions of the bolts; the upright posts of the left portal frame 2 and the right portal frame 6 are fixed on the base 1 through bolts, and the fixing positions of the upright posts of the left portal frame 2 and the right portal frame 6 can be adjusted by adjusting the fixing positions of the bolts; the left limiting column 5 and the right limiting column 9 are fixed on the base 1 through bolts, and the fixing positions of the left limiting column 5 and the right limiting column 9 can be adjusted through adjusting the fixing positions of the bolts.
Example 3:
example 3 is substantially the same as example 2 except that:
the left loading tool 4 further comprises a transmission cross rod 46, two ends of the transmission cross rod 46 are fixedly connected with the middle of the top plate 41 through fixing lugs 47, the end of the power output rod of the left actuator 3 is sleeved on the transmission cross rod 46, and the end of the power output rod of the left actuator 3 is in rotating fit with the transmission cross rod 46.
Claims (3)
1. A non-independent suspension durability test stand, comprising: base (1) and go up fixed left portal frame (2) and right portal frame (6) thereof, its characterized in that:
the cross beam of the left portal frame (2) is fixedly connected with the top of a left actuator (3), the bottom of the left actuator (3) is fixedly connected with the top of a left loading tool (4), the right side of the left loading tool (4) is fixedly connected with a left hub of a non-independent suspension (10) to be tested through a bolt, and the left side of the left loading tool (4) is in sliding fit with a left limiting column (5) along the vertical direction;
the cross beam of the right portal frame (6) is fixedly connected with the top of a right actuator (7), the bottom of the right actuator (7) is fixedly connected with the top of a right loading tool (8), the left side of the right loading tool (8) is fixedly connected with a right hub of a to-be-tested dependent suspension (10) through a bolt, and the right side of the right loading tool (8) is in sliding fit with a right limiting column (9) along the vertical direction;
the left portal frame (2) and the right portal frame (6) are identical in structure, the left actuator (3) and the right actuator (7) are identical in structure, the left loading tool (4) and the right loading tool (8) are identical in structure, and the left limiting column (5) and the right limiting column (9) are identical in structure;
the left loading tool (4) comprises a top plate (41) and two side plates (42) vertically connected with the top plate, a hub fixing plate (43) is fixedly connected between the two side plates (42), the top of the hub fixing plate (43) is vertically connected with the bottom of the top plate (41), a chute plate (44) is arranged on the top plate (41) close to the left limiting column (5), and a vertical limiting chute (45) is arranged on the chute plate (44);
spacing post (5) in a left side are fixed in on base (1), be fixed with spacing slider (51) on spacing post (5) in a left side, spacing slider (51) set up in spacing spout (45), and vertical direction sliding fit is followed with spacing spout (45) in spacing slider (51).
2. The dependent suspension durability test stand of claim 1 wherein:
the beam of the left portal frame (2) is fixed on the upright of the left portal frame (2) through a bolt, the beam of the right portal frame (6) is fixed on the upright of the right portal frame (6) through a bolt, and the fixed heights of the beams of the left portal frame (2) and the right portal frame (6) can be adjusted by adjusting the fixed positions of the bolts;
the upright posts of the left portal frame (2) and the right portal frame (6) are fixed on the base (1) through bolts, and the fixing positions of the upright posts of the left portal frame (2) and the right portal frame (6) can be adjusted by adjusting the fixing positions of the bolts;
the left limiting column (5) and the right limiting column (9) are fixed on the base (1) through bolts, and the fixing positions of the left limiting column (5) and the right limiting column (9) can be adjusted through adjusting the fixing positions of the bolts.
3. A dependent suspension durability test stand according to claim 1 or 2 wherein:
the left loading tool (4) further comprises a transmission cross rod (46), two ends of the transmission cross rod (46) are fixedly connected with the middle of the top plate (41) through fixing lugs (47), the end of the power output rod of the left actuator (3) is sleeved on the transmission cross rod (46), and the end of the power output rod of the left actuator (3) is in rotating fit with the transmission cross rod (46).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010534065.XA CN111638071B (en) | 2020-06-12 | 2020-06-12 | Durability test bench for non-independent suspension |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010534065.XA CN111638071B (en) | 2020-06-12 | 2020-06-12 | Durability test bench for non-independent suspension |
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| CN111638071A CN111638071A (en) | 2020-09-08 |
| CN111638071B true CN111638071B (en) | 2022-09-20 |
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| CN113029606A (en) * | 2021-03-17 | 2021-06-25 | 一汽奔腾轿车有限公司 | Novel gantry type chassis suspension test tool |
| CN114323675A (en) * | 2021-12-08 | 2022-04-12 | 东风汽车集团股份有限公司 | Auxiliary frame endurance bench test device and method |
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| EP2246686A1 (en) * | 2009-05-01 | 2010-11-03 | Froude Hofmann Limited | Vehicle test apparatus and method |
| CN202330029U (en) * | 2011-10-17 | 2012-07-11 | 上海科曼车辆部件系统有限公司 | Multi-channel rigid axle suspension test bench |
| CN105865813B (en) * | 2016-06-08 | 2018-03-30 | 东风汽车悬架弹簧有限公司 | A kind of test tool and its test method for Leaf Spring Suspension System |
| CN107328587A (en) * | 2017-06-29 | 2017-11-07 | 方盛车桥（苏州）有限公司 | A kind of suspension system fatigue tester |
| CN107894339B (en) * | 2017-11-07 | 2019-09-27 | 燕山大学 | Heavy vehicle and formula twin tires a quarter Active suspension simulation working condition tests platform |
| CN208705062U (en) * | 2018-08-30 | 2019-04-05 | 上海汽车集团股份有限公司 | Vehicle suspension assembly road simulation system |
| CN109596369B (en) * | 2018-12-28 | 2020-10-16 | 北汽福田汽车股份有限公司 | Suspension steering motion interference test bench and suspension steering motion interference test method |
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