CN104406871A - Vertical air spring fatigue testing machine - Google Patents
Vertical air spring fatigue testing machine Download PDFInfo
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- CN104406871A CN104406871A CN201410745352.XA CN201410745352A CN104406871A CN 104406871 A CN104406871 A CN 104406871A CN 201410745352 A CN201410745352 A CN 201410745352A CN 104406871 A CN104406871 A CN 104406871A
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- air spring
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- sliding panel
- eccentric roller
- air springs
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Abstract
The invention belongs to a vertical air spring fatigue testing machine for testing the service life of air springs through vertical reciprocating compression, and the vertical air spring fatigue testing machine is used for testing the service life of the air springs. Driving power and an eccentric roller are mounted on a sliding plate, the driving power drives the eccentric roller to rotate, the tested air springs are placed between a base and the sliding plate, and a damping contact and an electromagnet of an electromagnetic damping system are respectively mounted on the sliding plate and the base; through the technical scheme, the technical problems of an existing air spring fatigue testing device with a crankshaft and connecting rod mechanism that the connection is rigid, the compression of the air springs completely depends on a torque provided by a motor, the power of the motor is relatively large, the energy consumption is high, the directions of suffered pressures of the air springs are continuously and periodically changed and the experimental reliability is influenced are solved; the provided vertical fatigue testing machine for the air springs is small in power oscillation starting, realizes large-load loading, is effective and energy-saving, and is reliable in experimental result, and the using condition of the vertical fatigue testing machine is the same as the using conditions of the air springs.
Description
Technical field
The invention belongs to the device by the vertical reciprocating compression test air spring life-span, is the vertical fatigue tester of a kind of air spring concretely.
Background technology
Existing air spring fatigue experimental device is that power orders about air spring reciprocating compression by toggle, carries out torture test to air spring.Chinese utility model patent " automobile air spring fatigue-testing machine ", Authorization Notice No. CN2727729Y, disclosed in be exactly that a kind of connecting rod of Asynchronous Motor Driving toggle drives lever beam to swing, lever beam orders about the air spring fatigue experimental device that air spring stretches to carry out testing.Order about air spring reciprocating compression by toggle, and then be rigid connection to the shortcoming that air spring carries out torture test, the moment of torsion that the compression of air spring relies on motor to provide completely, power of motor is larger, and energy consumption is high; Along with lever beam rotates around the shaft, the direction that air spring bears lever beam pressure constantly, periodically changes, and the applying working condition of this and air spring reality has larger difference, affects the reliability of experimental result.
Summary of the invention
The present invention will solve the existing air spring fatigue experimental device with toggle and there is rigid connection, the moment of torsion that the compression of air spring relies on motor to provide completely, power of motor is larger, energy consumption is high, and air spring bears pressure direction and constantly, periodically changes, affect the technical matters of experimental reliability, a kind of low-power starting of oscillation is provided, realize large load to load, effectively energy-conservation, identical with air spring applying working condition, the vertical fatigue tester of the reliable air spring of experimental result.
In order to solve above-mentioned technical matters, the technical scheme that the present invention takes is: the vertical fatigue tester of a kind of air spring, comprise driving power, be fixedly connected with the vertically-guided bar of base, the sliding panel be slidably matched with guide pole, it is characterized in that driving power and eccentric roller to be arranged on sliding panel, drive power drive eccentric roller to rotate; Test air spring is placed between base and sliding panel; The damping contact of electromagnetic damping system and electromagnet are arranged on sliding panel and base respectively.
Sliding panel limits by guide pole, VTOL (vertical take off and landing), can not produce inclination.Drive power drive eccentric roller to rotate, produce vibration and cause sliding panel along the vibration of guide pole VTOL (vertical take off and landing), sliding panel makes test air spring vertical direction stressed, and force-bearing situation is consistent, and the amplitude of test air spring is identical, and experimental result is reliable.Only require that specification is identical at base upper bottom surface with the test air spring between below sliding panel, quantity and riding position do not limit, and test air spring can be one, two or more.The damping contact of electromagnetic damping system coordinates with electromagnet, and sliding panel vertical vibration makes the mating surface relative movement of damping contact and electromagnet, and the magnetic line of force of cutting electromagnet, provides damping force.Electromagnetic damping is contactless, and long service life is easy to adjust.Present invention utilizes self counter-force of test air spring.The rotating speed controlling eccentric roller is identical with the natural frequency of system, and eccentric roller provides less eccentric force, due to resonance principle, amplitude constantly superposes in swing process, strengthen, by adjustment damping system, by amplitude stability in claimed range, simulate the applying working condition of air spring reality.Air spring fatigue experimental device with toggle adopts crankshaft-link rod to connect, and without the need to considering damping problem, eccentric roller of the present invention causes vibration, and electromagnetic damping system is for ensureing vibration amplitude to stablize and the technical scheme that proposes.Air spring vertical fatigue tester of the present invention is effectively energy-conservation.Use procedure: after installing test air spring, start and drive power, eccentric roller is with setting speed starting of oscillation, and the amplitude of sliding panel constantly increases, and finally reaches requirement amplitude.If amplitude is bigger than normal, strengthen damping, if amplitude is less than normal, reduce damping, continuance test after the amplitude stability of sliding panel.The change of pressure monitoring system Real-Time Monitoring test air spring internal gas pressure, when air pressure is reduced to setting value, shuts down and reports to the police, pointing out this spring failure, complete test.
Power is driven to be servomotor.
Drive power to be fixedly mounted on sliding panel, drive initiatively transmission gear, initiatively transmission gear and slave drive gears meshing; Slave drive gear is coaxially fixedly connected with eccentric roller, and be arranged on eccentric roller bearing, eccentric roller bearing is fixedly connected on sliding panel.Drive power to order about eccentric roller to rotate.
The axis of eccentric roller is arranged on the center position of sliding panel.Center loaded load, guide pole uniform force.
The damping contact of electromagnetic damping system is arranged on the termination of sliding panel one end, and electromagnet is arranged on base.
The existing two station air spring fatigue experimental devices with toggle, the power of motor of the air spring of test 350-400mm diameter specifications is just more than 100kW, and the vertical fatigue tester of air spring of the present invention four station, power of motor when testing diameter air spring of the same race is only 3kW, power consumption minimizing about 97%.The torture test of battery of tests air spring uninterruptedly need carry out 20-30 days, so energy-saving effect of the present invention is considerable.
The present invention utilizes resonance principle, establishes the resonator system of a set of forced vibration, and carrying out reciprocating compression to test air spring, is test unit and test method that a kind of air spring is new.
Advantage of the present invention is: drive power-actuated eccentric roller to be arranged on sliding panel, eccentric roller rotates generation vibration and causes sliding panel to vibrate along guide pole VTOL (vertical take off and landing), the sliding panel of vertical vibration makes test air spring vertical direction stressed, force-bearing situation is consistent, the amplitude of vibration test is identical, and test findings is reliable.As long as test air spring specification is identical, quantity and riding position do not limit.Present invention utilizes self counter-force of air spring, control the rotating speed of eccentric roller, eccentric roller provides small eccentricity power, due to resonance principle, amplitude constantly superposes in vibration processes, strengthen, by adjustment damping system, by amplitude stability in claimed range, simulate the applying working condition of air spring reality, the energy-saving effect of the vertical fatigue tester of air spring of the present invention is remarkable.
Accompanying drawing explanation
The structural representation of one embodiment of the invention.
Embodiment
Accompanying drawings.
Planar horizontal on the base plate of base 9, two vertical guide poles 4 to be fixedly connected on base plate in plane.Drive power 5 to be servomotors in the present embodiment, motor base is fixedly connected on sliding panel 1, and servomotor is fixedly mounted on motor base.Driven by servomotor initiatively transmission gear rotates, initiatively transmission gear and slave drive gears meshing, and eccentric roller 3 is installed together with slave drive gear is co-axially fixed.Vertical eccentric roller bearing 2 is fixedly connected on sliding panel 1, and eccentric roller bearing 2 supports eccentric roller 3 and slave drive gear, and eccentric roller 3 is level with the axis of slave drive gear.The axis of eccentric roller 3 is arranged on the center position of sliding panel 1.The left end head of sliding panel 1 is the damping contact 7 of electromagnetic damping system, and the electromagnet 8 of electromagnetic damping system is arranged on electromagnet bearing, and vertical electromagnet bearing is fixedly connected on base 9.The lower end of test air spring 10 is placed on the upper bottom surface of base 9, and upper end is connected with sliding panel 1.Test air spring 10 can be 1, may also be two or more.The present embodiment sliding panel 1 often hold only have one to test air spring 10, two test air spring 10 symmetry be placed on base 9, test air spring 10 specification at two ends is identical, is all 350mm diameter specifications.During test, after installing test air spring 10, start servomotor, eccentric roller 3 is with setting speed starting of oscillation, and amplitude constantly increases, and finally reaches requirement amplitude, if amplitude is bigger than normal, strengthens damping, if amplitude is less than normal, reduces damping, continuance test after stable.The pressure transducer of the pressure monitoring system of the present embodiment monitoring test air spring 10 air pressure inside is connected on pipeline, is communicated with test air spring by pipeline always.The change of pressure monitoring system Real-Time Monitoring test air spring 10 air pressure inside, when air pressure is reduced to setting value, shuts down and reports to the police, pointing out this test air spring 10 to lose efficacy, complete test.
The present embodiment is the vertical fatigue tester of two station air springs, its servomotor power is 2kW, the existing two station air spring fatigue experimental devices with toggle, the power of motor of the air spring of test 350-400mm diameter specifications is just more than 100kW.The energy-saving effect of the present embodiment is given prominence to.The vertical fatigue tester of the present invention four station air spring, the drive motor power of test 350-400mm diameter specifications air spring is 3kW, and energy-saving effect is more outstanding.
Claims (5)
1. the vertical fatigue tester of air spring, comprise and drive power (5), be fixedly connected with the vertically-guided bar (4) of base (9), the sliding panel (1) be slidably matched with guide pole (4), it is characterized in that driving power (5) and eccentric roller (3) to be arranged on sliding panel (1), drive power (5) to drive eccentric roller (3) to rotate; Test air spring (10) is placed between base (9) and sliding panel (1); The damping contact (7) of electromagnetic damping system and electromagnet (8) are arranged on sliding panel (1) and base (9) respectively.
2. the vertical fatigue tester of air spring according to claim 1, is characterized in that driving power (5) to be servomotor.
3. the vertical fatigue tester of air spring according to claim 1, is characterized in that driving power (5) to be fixedly mounted on sliding panel (1), drives initiatively transmission gear, initiatively transmission gear and slave drive gears meshing; Slave drive gear is coaxially fixedly connected with eccentric roller (3), and be arranged on eccentric roller bearing (2), eccentric roller bearing (2) is fixedly connected on sliding panel (1).
4. the vertical fatigue tester of air spring according to claim 1, is characterized in that the axis of eccentric roller (3) is arranged on the center position of sliding panel (1).
5. the vertical fatigue tester of air spring according to claim 1, it is characterized in that the damping contact (7) of electromagnetic damping system is arranged on the termination of sliding panel (1) one end, electromagnet (8) is arranged on base (9).
Priority Applications (1)
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CN201410745352.XA CN104406871A (en) | 2014-12-09 | 2014-12-09 | Vertical air spring fatigue testing machine |
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CN201410745352.XA CN104406871A (en) | 2014-12-09 | 2014-12-09 | Vertical air spring fatigue testing machine |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105092232A (en) * | 2015-09-09 | 2015-11-25 | 宁波美亚达汽车部件制造有限公司 | Flexural fatigue inspection machine of air spring |
CN109443950A (en) * | 2018-10-29 | 2019-03-08 | 常州泰瑞弹簧有限公司 | Safety belt wind spring test fixture and its test method |
CN110426300A (en) * | 2019-07-30 | 2019-11-08 | 南京兆能节能科技有限公司 | A kind of spring fatigue test device and method |
CN112485027A (en) * | 2020-12-10 | 2021-03-12 | 西南交通大学 | Dynamic parameter measuring device of double air springs |
CN112781844A (en) * | 2020-12-17 | 2021-05-11 | 同济大学 | Air spring commonality test bench |
CN115791141A (en) * | 2023-02-02 | 2023-03-14 | 扬州市赛思检测设备有限公司 | Be used for detecting air spring fatigue testing machine |
CN116593147A (en) * | 2023-05-22 | 2023-08-15 | 安徽隆威汽车零部件有限公司 | Fatigue test equipment and method using bag type air spring |
CN116698452A (en) * | 2023-07-28 | 2023-09-05 | 山东首达汽车制造有限公司 | Semitrailer suspension performance testing device |
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DD273502A1 (en) * | 1988-06-30 | 1989-11-15 | Inst Leichtbau Und Oekonomisch | DEVICE FOR CONTINUOUS CHECKING OF TWO CYLINDRICAL SCREW SPRINGS |
CN2445318Y (en) * | 2000-08-09 | 2001-08-29 | 刘永平 | Spring fatigue-testing machine |
CN1719226A (en) * | 2005-07-08 | 2006-01-11 | 天津大学 | Adaptive conjugated resonant type spring fatigue experimental machine |
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CN102088235A (en) * | 2009-12-03 | 2011-06-08 | 三星电机株式会社 | Linear vibrator |
CN202329976U (en) * | 2011-11-29 | 2012-07-11 | 苏州东菱振动试验仪器有限公司 | Realizing device of low-frequency tests of vibrating table |
CN103609009A (en) * | 2011-04-26 | 2014-02-26 | 国际计测器株式会社 | Electrodynamic actuator and electrodynamic excitation device |
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2014
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Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2292966A1 (en) * | 1974-11-29 | 1976-06-25 | Sncf | Device for testing coil springs - has electromagnetically driven pendular mass producing oscillations in two preloaded springs |
DD273502A1 (en) * | 1988-06-30 | 1989-11-15 | Inst Leichtbau Und Oekonomisch | DEVICE FOR CONTINUOUS CHECKING OF TWO CYLINDRICAL SCREW SPRINGS |
CN2445318Y (en) * | 2000-08-09 | 2001-08-29 | 刘永平 | Spring fatigue-testing machine |
CN1719226A (en) * | 2005-07-08 | 2006-01-11 | 天津大学 | Adaptive conjugated resonant type spring fatigue experimental machine |
CN102077074A (en) * | 2008-06-25 | 2011-05-25 | 伯斯有限公司 | High frequency multi-axis simulation system |
CN102088235A (en) * | 2009-12-03 | 2011-06-08 | 三星电机株式会社 | Linear vibrator |
CN201707274U (en) * | 2010-05-14 | 2011-01-12 | 桂林瑞特试验机有限公司 | Resonant spring fatigue test device |
CN103609009A (en) * | 2011-04-26 | 2014-02-26 | 国际计测器株式会社 | Electrodynamic actuator and electrodynamic excitation device |
CN202329976U (en) * | 2011-11-29 | 2012-07-11 | 苏州东菱振动试验仪器有限公司 | Realizing device of low-frequency tests of vibrating table |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105092232A (en) * | 2015-09-09 | 2015-11-25 | 宁波美亚达汽车部件制造有限公司 | Flexural fatigue inspection machine of air spring |
CN109443950A (en) * | 2018-10-29 | 2019-03-08 | 常州泰瑞弹簧有限公司 | Safety belt wind spring test fixture and its test method |
CN110426300A (en) * | 2019-07-30 | 2019-11-08 | 南京兆能节能科技有限公司 | A kind of spring fatigue test device and method |
CN112485027A (en) * | 2020-12-10 | 2021-03-12 | 西南交通大学 | Dynamic parameter measuring device of double air springs |
CN112485027B (en) * | 2020-12-10 | 2024-11-08 | 西南交通大学 | Dynamic parameter measuring device for double air springs |
CN112781844A (en) * | 2020-12-17 | 2021-05-11 | 同济大学 | Air spring commonality test bench |
CN115791141A (en) * | 2023-02-02 | 2023-03-14 | 扬州市赛思检测设备有限公司 | Be used for detecting air spring fatigue testing machine |
CN115791141B (en) * | 2023-02-02 | 2023-05-09 | 扬州市赛思检测设备有限公司 | Be used for detecting air spring fatigue testing machine |
CN116593147A (en) * | 2023-05-22 | 2023-08-15 | 安徽隆威汽车零部件有限公司 | Fatigue test equipment and method using bag type air spring |
CN116698452A (en) * | 2023-07-28 | 2023-09-05 | 山东首达汽车制造有限公司 | Semitrailer suspension performance testing device |
CN116698452B (en) * | 2023-07-28 | 2023-10-31 | 山东首达汽车制造有限公司 | Semitrailer suspension performance testing device |
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Application publication date: 20150311 |