CN111024384A - Abnormal sound test bench of automobile-used bush - Google Patents
Abnormal sound test bench of automobile-used bush Download PDFInfo
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- CN111024384A CN111024384A CN201911392342.1A CN201911392342A CN111024384A CN 111024384 A CN111024384 A CN 111024384A CN 201911392342 A CN201911392342 A CN 201911392342A CN 111024384 A CN111024384 A CN 111024384A
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- bushing
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- torsional
- connecting shaft
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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
- G01M13/00—Testing of machine parts
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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
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a torsional abnormal sound test bench for a rubber bushing, which is used for testing an abnormal sound test of the rubber bushing and comprises a base, a clamping mechanism, a pressing mechanism and a torsional loading mechanism, wherein the clamping mechanism is arranged on the base and used for fixing the rubber bushing, the pressing mechanism is connected with the clamping mechanism and used for applying pressing force to the clamping mechanism, and the torsional loading mechanism is used for driving the rubber bushing to perform torsional motion. According to the rubber bushing torsional abnormal sound test bed provided by the embodiment of the invention, the torsional abnormal sound of the bushing can be accurately tested through the reasonable design of the test bed structure, an acoustic acquisition system can be arranged beside the test bed or the abnormal sound of the bushing during torsion can be effectively evaluated through subjective evaluation of testers, so that the bushing abnormal sound test result is accurate and reliable, the universality is high, the structure is simple, and the operation is easy.
Description
Technical Field
The invention relates to the technical field of automobile manufacturing, in particular to an abnormal sound test bench for an automobile bushing.
Background
The bushing is divided into a conventional rubber bushing and a hydraulic rubber bushing, belongs to a rubber product part of an automobile chassis, is a hinge point between parts of an automobile body, has superior elastic characteristic and attenuation characteristic, can bear load, isolate and attenuate vibration and reduce noise, ensures riding comfort, and has important influence on the design of an automobile suspension.
Because automobile-used bush is used for the chassis spare more, when it sends the abnormal sound in whole car test process, be difficult for assessing it accurately. Most of the traditional bushing performance test equipment is not carried out by a double-shaft or three-shaft professional device with a complicated structure and high cost. In order to evaluate the abnormal noise of the bushing for the vehicle and save the cost, it is necessary to design a bushing abnormal noise test device for the vehicle, which has a simple structure, low cost and is convenient to install.
The existing vehicle bushing test bed is mostly used for fatigue endurance tests, and various loads such as radial load, warping load, twisting load and the like can be applied to a bushing generally, so that the test bed is complex in structure and expensive. In the bushing abnormal sound test, only the reason analysis of the bushing abnormal sound under the torsional load needs to be researched, so that a test bed which is simpler in structure, low in cost and excellent in adaptability needs to be designed.
Disclosure of Invention
The invention aims to provide a test bench which can test and evaluate the torsional abnormal sound of a vehicle bushing in a laboratory.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a rubber bushing torsion test device is used for testing abnormal sound of a rubber bushing and comprises a base, a clamping mechanism, a pressing mechanism and a torsion loading mechanism, wherein the clamping mechanism is arranged on the base and used for fixing the rubber bushing, the pressing mechanism is connected with the clamping mechanism and used for applying pressing force to the clamping mechanism, and the torsion loading mechanism is used for driving the rubber bushing to generate torsion motion. The clamping mechanism fixes the rubber bushing in an experiment, the torsion loading mechanism applies torsion acting force to rubber, and an acoustic acquisition system is arranged beside a test bed or abnormal sound of the bushing during torsion can be evaluated through subjective evaluation of a tester.
The concrete structure includes: the clamping mechanism is internally provided with a filling block for mounting the lining;
the pressing mechanism is connected with the clamping mechanism and moves to apply radial pressing acting force to the clamping mechanism and the bushing;
the torsion loading mechanism is connected with the bushing and moves to apply torsion acting force to the bushing.
Furthermore, the clamping mechanism comprises a clamping block and a filling block, the filling block is an arc-shaped cavity, the radian of the filling block corresponds to the structure of the bushing, the clamping block is meshed with the filling block through a tooth profile, the arc surface of the filling block forms a column shape corresponding to the structure of the bushing, the two axial ends of the filling block are open, one clamping block is fixed on the base through a locking bolt, and the other clamping block can slide along the groove of the base; the filling blocks comprise first filling blocks and second filling blocks, and the clamping blocks comprise first clamping blocks and second clamping blocks.
Furthermore, the pressing mechanism comprises a connecting shaft and a limiting sliding block; the connecting shaft is connected with the clamping mechanism, and a connecting shaft adjusting bolt is arranged on the connecting shaft and used for adjusting the length of the connecting shaft; the connecting shaft penetrates through the mounting channel on the limiting sliding block; the limiting slide block is fixed on the base, and the radial size of an opening of the limiting slide block corresponds to the radial size of the connecting shaft so as to limit the moving direction of the connecting shaft to be parallel to the base. The limiting slide block is in a convex shape, the limiting block is fixed on the base through a locking bolt, a through hole is formed in the limiting block, the radial size of the limiting block is matched with the radial size of the connecting shaft, the connecting shaft penetrates through the limiting slide block, and the limiting slide block limits the limiting slide block to move along the axial direction.
Furthermore, the pressing mechanism also comprises a connecting rod, a rocker arm, a swing arm support, a connector and an output controllable linear motion device which moves along the axial direction; the two ends of the connecting rod are respectively connected with the connecting shaft and the rocker arm, the pressing force of the rocker arm is transmitted to the connecting shaft, the fulcrum of the rocker arm is fixed on the swing arm support, and the two ends of the rocker arm are respectively connected with the connecting rod and the connector; an output controllable linear motion device for driving the connecting rod to move along the axial direction is arranged on the path of the connector; the output controllable linear motion device moving along the axial direction is a hydraulic cylinder or a motor.
Furthermore, the torsion loading mechanism comprises a torsion bar limiting bolt and a swing rod; the bushing comprises a bushing groove and an inner bushing sleeve; the inner sleeve of the bushing is positioned at the center of the bushing; the swing rod is fixedly connected with the inner pipe sleeve of the bushing and is locked by the torsion bar limiting bolt; the swing rod is provided with a lug which is matched with the groove on the bushing, so that the swing motion of the swing rod can apply axial torsional acting force on a bushing sleeve in the bushing; the swing rod can swing around the axis of the bushing to provide a torsional acting force for the bushing, the swing rod is fixedly connected with the inner diameter pipe sleeve of the bushing and locked by the torsion bar locking bolt, the other end of the swing rod is connected with the sliding block, and the swing rod drives the inner diameter pipe sleeve of the bushing to rotate when swinging so as to apply the torsional acting force to the bushing;
furthermore, the torsion loading mechanism also comprises a slide block, a connecting rod, a connector and an output controllable linear motion device which moves along the axial direction; the sliding block is sleeved on the oscillating rod, a sliding bearing is arranged on the inner side of the sliding block and connected with the oscillating rod and can slide along the radial direction of the oscillating rod, the outer side of the sliding block is connected with the connecting rod through a thrust rolling bearing, the sliding block can rotate around a connecting point with the connecting rod, so that the sliding block can slide along the oscillating rod, the connecting rod is connected with the sliding block through a thrust ball bearing, the connecting rod is fixedly connected with the connecting head, and an output controllable linear motion device for driving the connecting rod to move along the axial direction is arranged on the path of the; the output controllable linear motion device moving along the axial direction is a hydraulic cylinder or a motor.
Compared with the prior art, the invention has the following advantages:
the accessible is to the change of filling block and the bush of various sizes of connecting axle adjusting bolt's adjustment matching, makes this experimental apparatus have better adaptability. The motion condition of the rubber bushing during real vehicle assembly is simulated through a simple mechanical actuating structure, and the components and reasons of abnormal sound generated by the bushing during motion are conveniently evaluated by testers.
Drawings
FIG. 1 is a schematic structural diagram of a torsional abnormal noise test bed of a rubber bushing according to an embodiment of the present invention;
FIG. 2 is a side view of a clamping mechanism and a pressing mechanism of a torsional abnormal noise test bed of a rubber bushing according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a torsional abnormal noise test bed torsional loading device of a rubber bushing according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a bushing of a torsional abnormal noise test stand of a rubber bushing according to an embodiment of the present invention.
Reference is made to the accompanying drawings in which: 1-clamping mechanism, 11-first filling block, 12-second filling block, 13-first clamping block, 14-second clamping block, 2-hold-down mechanism, 21-connecting shaft, 211-connecting shaft adjusting bolt, 22-limiting slide block, 221-mounting channel, 23-connecting rod, 24-swinging arm, 25-swinging arm support, 26-connecting block, 27-output controllable linear motion device, 3-torsion loading mechanism, 31-torsion bar limiting bolt, 32-swinging rod, 33-sliding block, 34-connecting rod, 35-connecting head, 36-output controllable linear motion device, 4-base, 5-bushing, 51-bushing groove and 52-bushing inner bushing sleeve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention are clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments derived by a person of ordinary skill in the art based on the described embodiments of the invention are within the scope of protection of the invention.
Hereinafter, a torsional abnormal noise test stand for a rubber bushing for a vehicle according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, the torsional abnormal noise test stand for a rubber bushing for a vehicle according to an embodiment of the present invention includes a clamping mechanism 1, a pressing mechanism 2, a torsional loading mechanism 3, and a base 4.
Specifically, a first clamping block (front clamping block) 11 and a second clamping block (rear clamping block) 12 for installing the bush 5 are defined in the clamping mechanism, the pressing mechanism 2 is connected with the clamping mechanism 1, the pressing mechanism 2 can apply pressing force to the clamping mechanism 1 to fix the bush 5, the torsion loading mechanism 3 is connected with the bush 5 and can move to apply torsion acting force to the bush 5, and the clamping mechanism 1 and the pressing mechanism 2 are both installed on the base 4.
That is, the torsional abnormal noise test bed for the rubber bushing for the vehicle is mainly composed of a clamping mechanism 1, a pressing mechanism 2 connected with the clamping mechanism 1, a torsional loading mechanism 3 connected with a bushing 5, and a base 4 for fixing the clamping mechanism 1 and the pressing mechanism 2. Wherein, set up first filling block (preceding filling block) 13 and second filling block (back filling block) 14 in fixture 1 for installation bush 5, first filling block 13 and second filling block 14 contact and compress tightly with the both ends of bush 5 shell respectively, realize the fixed of the shell of bush 5. Wherein the first filling block 13 and the second filling block 14 can be designed with the radian matched with the diameter of the lining 5 according to the diameter of the lining to increase the contact area during the compaction. The pressing mechanism 2 is connected with the clamping mechanism through a clamping groove, and the pressing mechanism 2 can apply pressing force to the clamping mechanism 1 along the radial direction of the bush 5, so that the shell of the bush 5 is fixed in the clamping mechanism 1. The torsion loading device 3 is directly connected with the bush 5, the torsion loading mechanism 3 can enable the bush 5 to rotate around an axis, torsion acting force can be applied to the bush 5 through swinging of the torsion loading mechanism 3, and abnormal sound test can be conducted on the torsion movement of the bush 5.
According to one embodiment of the invention, the filling blocks 13 and 14 in the clamping mechanism 1 have concave curvatures corresponding to those of the bushing 5, wherein the first filling block 13 is connected with the first clamping block 11, the second filling block 14 is connected with the second clamping block 12, and two axial ends of the clamping mechanism 1 are open.
Specifically, as shown in fig. 2, the first filling block 13 is connected with the first clamping block 11 through a toothed engagement, the first clamping block 11 is fixed on the base 4 through a bolt, the second filling block 14 is connected with the second clamping block 12 through a toothed engagement, and the second clamping block 12 is connected with the base through a groove of the base 4 and can move along the direction of the groove of the base. The cambered surfaces of the first filling block 13 and the second filling block 14 are matched with the bushing 5. When the bushings 5 with different sizes are encountered in the test, only the first filling block 13 and the second filling block 14 with different sizes need to be replaced, so that the test bench has high universality. The back of the first clamping block 11 is provided with a groove connected with an adjusting bolt 211 on the connecting shaft 21.
In some embodiments of the invention, the pressing mechanism 2 comprises a connecting shaft 21 and a limit slider 22. Wherein, the connecting shaft 21 is provided with an adjusting bolt 211, and one end of the connecting shaft is axially provided with a threaded hole connected with the adjusting bolt 211. Turning the adjustment bolt 211 may change the length of the connecting shaft 21 to fit different sized bushings 5. The head of the adjusting bolt 211 is inserted into a groove in the clamping block 12 and connected to the clamping block 12. The limiting slide block 22 is fixed on the base 4, an installation channel 221 is arranged in the limiting slide block 22, the installation channel 221 extends along the axial direction of the connecting shaft 21, the connecting shaft 21 is installed in the installation channel 221, the connecting shaft 21 can move along the axial direction of the connecting shaft 21, the radial size of the installation channel 221 is matched with the radial size of the connecting shaft 21, the connecting shaft 21 can be conveniently installed and detached, and the connecting shaft 21 is guaranteed to move along the axial direction of the connecting shaft.
According to some embodiments of the invention, the hold-down mechanism further comprises a link 23, a rocker 24, a rocker base 25 and a connecting block 26. The connecting rod 23 is i-shaped, one end of the connecting rod is connected with the connecting shaft 21 through a bolt, the other end of the connecting rod is connected with the rocker arm 24 through a bolt, the connecting shaft 21 and the rocker arm 24 can rotate around the connecting point with the connecting rod 23, and the connecting rod 23 is used for transmitting the swinging motion of the rocker arm to the connecting shaft so that the connecting shaft moves along the axial direction of the connecting shaft. The fulcrum of the rocker arm 24 is connected with the rocker arm support 25 through a bolt, and the rocker arm 24 can rotate around the fulcrum of the rocker arm as an axis. The connecting block 26 is bolted to the other end of the lever and the connecting block 26 is able to rotate about its point of attachment to the lever. The other end of the connecting block 26 is connected to an output controllable linear motion device (linear hydraulic cylinder) 27 which moves in the axial direction, and the drive source of the entire pressing device is the linear hydraulic cylinder.
Specifically, the output controllable linear motion device (linear hydraulic cylinder) 27 moving along the axial direction pulls the connecting block 26 to move along the axial direction of the linear hydraulic cylinder, the rocker arm 24 rotates around the fulcrum of the connecting block 26 along with the connecting block, the connecting rod 23 is pushed to move towards the bushing 5, the connecting rod 23 pushes the connecting shaft 21 to move towards the bushing 5 along with the connecting block, and the connecting shaft 21 is pressed towards the clamping device through the adjusting bolt 211 on the connecting shaft 21, so that the clamping device firmly clamps the outer surface of the bushing 5.
Optionally, the torsion loading mechanism 3 includes a torsion bar limit bolt 31 and a swing rod 32, wherein the torsion bar limit bolt 31 penetrates along the axial direction of the bushing 5, two ends of the torsion bar limit bolt 31 respectively extend out of the bushing 5, the swing rod is firmly connected with the torsion bar lock bolt, and a torsion acting force is applied to the bushing 5 through the swing of the swing rod.
That is, the torsion loading mechanism 3 is mainly composed of a torsion bar limit bolt 31 and a swing link 32 firmly connected with the torsion bar lock bolt, wherein the torsion bar limit bolt 31 is installed in an inner tube sleeve 52 of the bushing 5, the radial dimension of the torsion bar limit bolt 31 matches with the radial dimension of the inner tube sleeve 52 larger than the bushing 5, and the torsion shaft 31 should be locked with the inner tube sleeve 52, so that the torsion bar limit bolt 31 can apply a torsion acting force to the rubber bushing 5. The swing rod 32 is fixedly connected with the torsion bar limiting bolt 31, and a convex block on the swing rod 32 is matched with the groove 51 on the bushing 5, so that the swing motion of the swing rod can apply axial torsion acting force to the bushing inner sleeve 52.
Optionally, the torsion loading mechanism further comprises a slider 33, a link 34 and a connector 35. The sliding block 33 is connected with the swing rod 32 and can freely slide along the swing rod 32. The connecting rod 34 is connected with the sliding block 33 through a bolt and can freely rotate around the connecting point. The other end of the connecting rod 34 is fixedly connected with the connecting head 35, and can not move relatively. The connecting head 35 will be connected to an output controllable linear motion device (controllable linear hydraulic cylinder) 36.
Specifically, during operation, the output end of the output controllable linear motion device (controllable linear hydraulic cylinder) 36 is connected to the connector 35 connected to the connecting rod 34, the swing rod 32 is driven to perform an angular adjustable swing motion by the back and forth movement of the connecting portion, the swing rod 32 is fixedly connected to the torsion bar limit bolt 31, and the torsion bar limit bolt 31 is driven to perform a torsional motion, so as to drive the rubber bushing 5 to perform a torsional motion.
The device for testing the torsional abnormal sound of the rubber bushing for the vehicle is mainly used for testing the torsional abnormal sound of bushing products. The test process is as follows:
the method comprises the following steps: loosening the clamping device, installing a filling block matched with the test bushing, and adjusting an adjusting bolt of the connecting shaft to enable the connecting shaft to be in a proper length;
step two: the method comprises the following steps of (1) loading a bush to be tested into a clamping device, enabling a linear hydraulic cylinder of a pressing device to act, and driving the pressing device to apply pressing force to the clamping device;
step three: connecting the torsion applying device with the bushing to be tested, and locking the torsion bar locking bolt;
step four: the linear hydraulic cylinder of the torsion applying device starts to actuate back and forth, an acoustic sensor is arranged beside the bushing abnormal sound test bed, the amplitude and the frequency component of the bushing abnormal sound are tested and analyzed, and testers can carry out subjective evaluation and cause analysis on the bushing abnormal sound.
Claims (6)
1. The utility model provides a torsional abnormal sound test bench of rubber bush which characterized in that includes:
the clamping mechanism (1) is internally provided with a filling block (11) for installing the bushing;
the pressing mechanism (2) is connected with the clamping mechanism (1), and the pressing mechanism (2) is movable to apply radial pressing acting force to the clamping mechanism (1) and the bushing (5);
the torsion loading mechanism (3) is connected with the bushing (5), and the torsion loading mechanism (3) moves to apply torsion acting force to the bushing (5).
2. The torsional abnormal noise test stand of a rubber bushing according to claim 1, wherein: the clamping mechanism (1) comprises a clamping block and a filling block, the filling block is an arc-shaped cavity, the radian of the filling block corresponds to the structure of the bushing (5), and the clamping block (13) is meshed with the filling block through a tooth shape; the filling blocks comprise a first filling block (11) and a second filling block (12), and the clamping blocks comprise a first clamping block (13) and a second clamping block (14).
3. The torsional abnormal noise test stand of a rubber bushing according to claim 1, wherein: the pressing mechanism (2) comprises a connecting shaft (21) and a limiting slide block (22); the connecting shaft (21) is connected with the clamping mechanism (1), and a connecting shaft adjusting bolt (211) is arranged on the connecting shaft (21) and used for adjusting the length of the connecting shaft; the connecting shaft (21) penetrates through an installation channel (221) on the limiting sliding block (22); the limiting sliding block (22) is fixed on the base (4), and the radial size of an opening of the limiting sliding block corresponds to the radial size of the connecting shaft so as to limit the moving direction of the connecting shaft to be parallel to the base.
4. The torsional abnormal noise test stand of a rubber bushing according to claim 1, wherein: the pressing mechanism also comprises a connecting rod (23), a rocker arm (24), a swing arm support (25), a connector (26) and an output controllable linear motion device (27) which moves along the axial direction; the two ends of the connecting rod are respectively connected with the connecting shaft (21) and the rocker arm (24), the pressing force of the rocker arm (24) is transmitted to the connecting shaft (21), the fulcrum of the rocker arm (24) is fixed on a swing arm support (25), and the two ends of the rocker arm are respectively connected with the connecting rod (23) and the connecting head (26); an output controllable linear motion device (27) for driving the connecting rod to move along the axial direction is arranged on the path of the connecting head (26); the output controllable linear motion device moving along the axial direction is a hydraulic cylinder or a motor.
5. The torsional abnormal noise test stand of a rubber bushing according to claim 1, wherein: the torsion loading mechanism (3) comprises a torsion bar limiting bolt (31) and a swing rod (32); the bushing (5) comprises a bushing groove (51) and a bushing inner sleeve (52); the inner sleeve (52) of the bushing is positioned at the center of the bushing (5); the swing rod (32) is fixedly connected with the inner sleeve (52) of the bushing and is locked by the torsion bar limiting bolt (31); a lug on the swing rod (32) is matched with a groove (51) on the bushing (5), so that the swing motion of the swing rod applies axial torsion acting force to a bushing inner sleeve (52); the swing rod (32) swings around the axis of the bushing (5) to provide torsional acting force for the bushing (5).
6. The torsional abnormal noise test stand of a rubber bushing according to claim 1, wherein: the torsion loading mechanism (3) further comprises a sliding block (33), a connecting rod (34), a connecting head (35) and an output controllable linear motion device (36) which moves along the axial direction; the sliding block (33) is sleeved on the swing rod (32) so that the sliding block (33) slides along the swing rod (32), the connecting rod (34) is connected with the sliding block (33) through a thrust ball bearing, the connecting rod (34) is fixedly connected with the connecting head (35), and an output controllable linear motion device (36) for driving the connecting rod to move along the axial direction is arranged on the path of the connecting head (35); the output controllable linear motion device moving along the axial direction is a hydraulic cylinder or a motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911392342.1A CN111024384A (en) | 2019-12-30 | 2019-12-30 | Abnormal sound test bench of automobile-used bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911392342.1A CN111024384A (en) | 2019-12-30 | 2019-12-30 | Abnormal sound test bench of automobile-used bush |
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| Publication Number | Publication Date |
|---|---|
| CN111024384A true CN111024384A (en) | 2020-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911392342.1A Pending CN111024384A (en) | 2019-12-30 | 2019-12-30 | Abnormal sound test bench of automobile-used bush |
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| Country | Link |
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| CN (1) | CN111024384A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114577456A (en) * | 2022-03-10 | 2022-06-03 | 一汽解放汽车有限公司 | Rubber joint performance test system |
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| CN204935434U (en) * | 2015-07-25 | 2016-01-06 | 华晨汽车集团控股有限公司 | A kind of control arm rubber bushing fatigue test flexible fixture |
| CN206440454U (en) * | 2016-12-08 | 2017-08-25 | 上海汽车集团股份有限公司 | Bush test bench frame apparatus |
| CN107179187A (en) * | 2017-07-07 | 2017-09-19 | 北京汽车研究总院有限公司 | A kind of long duration test stand of automobile-used bushing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101482447A (en) * | 2008-12-31 | 2009-07-15 | 奇瑞汽车股份有限公司 | Rubber bushing torsion test apparatus |
| CN102359873A (en) * | 2011-09-09 | 2012-02-22 | 奇瑞汽车股份有限公司 | Rigidity measuring clamp for automobile rubber bush |
| CN102607827A (en) * | 2012-02-21 | 2012-07-25 | 奇瑞汽车股份有限公司 | Clamping device for stiffness testing of rubber bushing |
| CN203453632U (en) * | 2013-08-19 | 2014-02-26 | 江苏海纬集团有限公司 | Pipeline clamp with bush |
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| CN204935434U (en) * | 2015-07-25 | 2016-01-06 | 华晨汽车集团控股有限公司 | A kind of control arm rubber bushing fatigue test flexible fixture |
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| CN107179187A (en) * | 2017-07-07 | 2017-09-19 | 北京汽车研究总院有限公司 | A kind of long duration test stand of automobile-used bushing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114577456A (en) * | 2022-03-10 | 2022-06-03 | 一汽解放汽车有限公司 | Rubber joint performance test system |
| CN114577456B (en) * | 2022-03-10 | 2024-04-09 | 一汽解放汽车有限公司 | Rubber joint performance test system |
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