CN103630377A - Testing device for static load characteristics of shock absorber at rear part of motorcycle - Google Patents
Testing device for static load characteristics of shock absorber at rear part of motorcycle Download PDFInfo
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- CN103630377A CN103630377A CN201310688823.3A CN201310688823A CN103630377A CN 103630377 A CN103630377 A CN 103630377A CN 201310688823 A CN201310688823 A CN 201310688823A CN 103630377 A CN103630377 A CN 103630377A
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Abstract
The invention provides a testing device for static load characteristics of a shock absorber at the rear part of a motorcycle. The testing device comprises a driving device and a clamping device, wherein the driving device and the clamping device are arranged separately from top to bottom; the driving device comprises a driving mechanism, a force sensor and a thread jacket which are connected in sequence from top to bottom; a moving part of the driving mechanism is also connected with a displacement sensor; the clamping device comprises a base, an installing pin seat and a clamping seat which are connected in sequence from bottom to top; the clamping seat is a vertical structure body which has a left-inverted U-shaped cross section and consists of an upper frame, a side frame and a lower frame; the outer plane of the lower frame is provided with a convex ear-shaped pin ring; a pin hole of the pin ring are pinned with pin holes at the two sides of the installing pin seat fixed on the base by virtue of a pin shaft; the center of the upper frame is provided with a clamping round hole; the outer plane of the side frame is also vertically connected with a lever; one end with the extending length a of the lever is also vertically connected with a straight rod; the other end of the straight rod is provided with a hanging hole for hanging and connecting a heavy block. The testing device provided by the invention has the advantages that the structure is simple, the function of applying a lateral force is achieved, and the testing requirement for the static load characteristics of the shock absorber in related standard regulations is met.
Description
Technical field
The present invention relates to properties of product test and experimental technique, especially a kind of rear shock absorber of motorcycle Static load characteristics test method and device.
Background technology
Vibroshock, as the critical component in driving vehicle, has vital role to the comfortableness of driving vehicle, security and maneuverability.The object of Static load characteristics (Static Load Characteristics) test is test vibroshock other stiction except damping force, Static load characteristics comprises the stiction between the inner relative motion part of vibroshock, the resistance of air chamber volume change and due to additional friction resistance that (especially front damper) stress deformation produces etc. tilt being installed, it is the dimensioned precision of vibroshock inner body, geometrical precision, the rigidity of structure, the strength of materials, quality of fit, the comprehensive embodiment of the influence factors such as assembly quality, and directly related with wear resistance and the serviceable life of vibroshock.It's the serviceable life that senior general has a strong impact on vibroshock is past quiescent load resistance.The motorcycle output of China is sure to occupy the first in the world already, but mainly take low side and middle and low-end market as main.As the vibroshock of the important auxiliary equipment of motorcycle, owing to lacking means and the test method of quality testing, restricting product and improving quality and class.The output of current domestic motorcycle is subject to big city and limits the compacting rubbing with Development of E-bike, be faced with difficult challenge and the opportunity that makes the transition, following motorcycle will be from the means of transport of riding instead of walk to amusement, leisure and motion transition, and this is by proposing higher requirement in the comfortableness of vibroshock, security and serviceable life.
The automobile industry standard < of People's Republic of China (PRC) < motorcycle and trail bike vibroshock > > (QC/T62-2007) that on September 1st, 2007 implements have substituted former < < motorcycle vibration absorber technical conditions > > (QC/T62-1993) and two standards of < < motorcycle vibration absorber test method > > (QC/T63-1993), QC/T62-2007 standard has increased 6 vibroshock pilot projects newly, comprising stiction and Static load characteristics.In QC/T62-2007 version standard, stiction is defined as " vibroshock mounting condition in accordance with regulations, to be not more than 0.005m/s speed, when relative motion is done at two ends, at the frictional resistance of midstroke generation ".Static load characteristics is defined as " vibroshock stroke in accordance with regulations, to be not more than 0.0015m/s speed, when relative motion is done at two ends, its load and the relation curve of displacement ".No matter stiction test all needs to remove damping spring for front damper and rear shock absorber, vertically installs, and one end drives, and to stipulate the stiction value of an oscillation cycle of test trip record, and is defined as stiction with midstroke friction force.During due to test, with very low speed drive vibroshock one end, can get rid of the damping force being directly proportional to speed.Static load characteristics test is except actuating speed is lower, because front wheel damper and rear wheel shock-absorbing device exist larger difference in physical dimension, load-bearing capacity, spring fitting mode etc., the mounted angle of front damper on motorcycle is significantly greater than rear shock absorber, physical dimension and stroke are longer, front damper load bearing requirements is obviously little than rear shock absorber, and the damping spring of front damper is generally built-in, inconvenience dismounting, and the damping spring of rear shock absorber is generally external, easily dismounting.Although standard (QC/T62-2007) has proposed pilot project and the conventional method of vibroshock Static load characteristics, but in standard, clearly do not provide specific implementation method and the concrete installation requirement of the test of vibroshock Static load characteristics, and these standard voluntary standards, current domestic motorcycle vibration absorber manufacturer not yet implements Static load characteristics pilot project.Therefore be necessary that establishing criteria designs concrete test method and the test unit that meets standard-required, this pilot project implemented as early as possible, to improve quality and the class of China's motorcycle vibration absorber in China vibroshock manufacturing enterprise.
The vibroshock testing table that the vibroshock testing table that external famous testing machine manufacturer produces is sold as American MTS company, servo apply hydraulic pressure hydraulic oil cylinder driving, can carry out the test that vibroshock shows the projects such as merit characteristic, stiction characteristic, spring static characteristic, there is certain versatility, but due to expensive, unable the purchasing of general vibroshock manufacturer, and can not carry out the quiet load-characteristic test of vibroshock.For the Static load characteristics of rear shock absorber, during test, need apply side force to vibroshock urceolus, need install special clamping mechanism additional, this causes certain difficulty to user of service.
The application will propose a kind of special theory structure that is applicable to the test method of rear shock absorber of motorcycle Static load characteristics and provides test unit, with specialty, efficiently, test unit meets domestic vibroshock manufacturer and rear shock absorber is implemented to the demand of Static load characteristics test cheaply, to promotion and implementation Static load characteristics, test provides and instructs and foundation.
Summary of the invention
The object of the invention is, for the design feature of rear shock absorber and the testing requirements of Static load characteristics, to propose a kind of test unit and test method of rear shock absorber Static load characteristics.
For reaching above-mentioned technical purpose, the present invention realizes the technical scheme that object takes and is:
A kind of rear shock absorber of motorcycle Static load characteristics test unit, comprise drive unit and clamping device that coaxial cable is setting up and down, wherein said drive unit comprises driving mechanism 1, power sensor 3 and the screw thread chuck 4 being connected successively from top to bottom, and wherein the motion parts of driving mechanism 1 is also connected with a displacement transducer 2, described clamping device comprises the support 9 being connected successively from bottom to top, key seat 8 and grip slipper 6 are installed, wherein said grip slipper 6 is by upper ledge, the structure that the disconnected cross section that side frame and lower frame formation are perpendicular to one another is " Contraband " font, wherein lower frame outerplanar is provided with protruding ear shape lock ring 6b, the pin-and-hole of lock ring 6b passes through bearing pin 11 pin joints with the pin-and-hole that is fixed on installation key seat 8 both sides on support 9, center upper frame is provided with clamping circular hole, the perpendicular lever 7 that is connected with also on side frame outerplanar, one end that lever 7 extends is the perpendicular straight-bar that is connected with also, the other end of straight-bar is provided with the hanging hole that articulates pouring weight 10.
Drive unit setting up and down described above and the isolation distance of clamping device are the length of vibroshock 5.
Driving mechanism 1 described above is hydraulic servo oil cylinder or motor-driven reduction of speed mechanical transmission mechanism.
Screw thread chuck 4 described above for patent name be " a kind of Quick Connect Kit for external thread axostylus axostyle ", the patent fixture that the patent No. is ZL20111036553313.
The clamping circular hole that grip slipper 6 upper ledges described above are provided with for to obtain separated clamp 6a after round hole axial is dissectd, and forming respectively at grip slipper 6 and clamp 6a the half-round cross hole that radian is slightly less than π, the screw that clamp 6a arranges by both sides with grip slipper 6 is connected with screw.
The present invention is according to the automobile industry standard < of People's Republic of China (PRC) < motorcycle and newly-increased motorcycle vibration absorber " Static load characteristics test " pilot project of trail bike vibroshock > > (QC/T62-2007), design feature for rear shock absorber of motorcycle, the structure of a kind of rear shock absorber Static load characteristics test method and test unit has been proposed, beneficial effect is: meet the vibroshock Static load characteristics testing requirements of correlation standard, easy for installation, test method is reasonable, there is the side force of applying function, have simple in structure, obtained practical application, and there is the good prospect of applying.
Accompanying drawing explanation
Accompanying drawing 1 is test unit structural representation of the present invention (compression travel);
Accompanying drawing 2 is test unit structural representation of the present invention (recovery stroke);
The A-A cut-open view that accompanying drawing 3 is Fig. 1;
The B-B cut-open view that accompanying drawing 4 is Fig. 1;
In figure: 1, driving mechanism, 2, displacement transducer, 3, power sensor, 4, screw thread chuck, 5, rear shock absorber, 5a, piston rod, 5b, socket, 6, grip slipper, 6a, clamp, 6b, lock ring, 7, lever, 8, key seat is installed, 9, support, 10, pouring weight, 11, bearing pin.
Embodiment
The motorcycle Static load characteristics test unit of take is below embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment:
Fig. 1 and Fig. 2 are this test method structure diagram, Fig. 1 is compression travel, Fig. 2 is for restoring stroke, it has been expressed and has implemented the test method of rear shock absorber 5 Static load characteristics tests and the structure diagram of test unit, and test unit comprises driving mechanism 1, displacement transducer 2, power sensor 3, screw thread chuck 4, rear shock absorber 5, grip slipper 6, clamp 6a, lever 7, key seat 8, support 9, pouring weight 10 and bearing pin 11 are installed.
During test, rear shock absorber 5 is vertically installed, piston rod 5a upward, socket 5b down and be fixed on grip slipper 6, driving mechanism 1 is positioned at the top of rear shock absorber 5, do vertical up-or-down movement the relative motion of the relative socket 5b of piston rod 5a low speed, to meet the requirement of " to be not more than 0.0015m/s speed " of standard code.For guaranteeing the test request of Static load characteristics, driving mechanism 1 must be avoided occurring low speed jerking motion phenomenon, reaches the required low speed motion stability requirement of test.Displacement transducer 2 is connected with the motion parts of driving mechanism 1, synchronously with driving mechanism 1, moves up and down, and process of the test real-time displacement signal is provided.Power sensor 3 upper ends are connected with driving mechanism 1, lower end is connected with screw thread chuck 4, screw thread chuck 4 is realized rear shock absorber 5 piston rod 5a is transmitted to motion with being threaded of rear shock absorber 5 piston rod 5a ends, power sensor 3 is experienced the force signal that is subject to of vertical direction in process of the test, and it is Static load characteristics curve along the power value of rear shock absorber 5 installation directions and the relation curve of displacement.
Because the damping spring of general rear shock absorber 5 is external, therefore before test, first remove damping spring, utilization damping spring abutment end cylindrical position on socket 5b clamps, test specimen clamping device comprises screw thread chuck 4, grip slipper 6, clamp 6a and clamping screw, 4 pairs of rear shock absorbers of screw thread chuck, 5 piston rod 5a end thread are implemented clamping, the structure of relevant screw thread chuck 4 and clamp principle referring to " a kind of Quick Connect Kit for external thread axostylus axostyle " (ZL201110355331.3).Fig. 3 is that Fig. 1 clamps position A-A cut-open view, grip slipper 6 tops are the horizontally-arranged doorframe structure of level, form upper ledge, side frame and lower frame, lower frame is provided with protruding lock ring 6b outward, lock ring 6b passes through bearing pin 11 pin joints with the pin-and-hole that key seat 8 both sides are installed, center upper frame is provided with clamping circular hole, after dissecing, round hole axial obtains separated clamp 6a, and form respectively at grip slipper 6 and clamp 6a the half-round cross hole that radian is slightly less than π, after clamp 6a and grip slipper 6 close up, by both sides screw, socket 5b cylindrical is clamped, one end of side frame and lever 7 is connected by screw and is integral.
The Static load characteristics test of rear shock absorber is basic identical with the mounting means of stiction test, difference is that actuating speed is lower, and need to rear shock absorber 5 socket 5b, apply side force at the trial, side force bringing device comprises grip slipper 6, clamp 6a, lever 7, key seat 8, pouring weight 10 and bearing pin 11 is installed.Clamp 6a clip position centre distance grip slipper 6 lock ring 6b pin-and-hole centre distances are b, and it is a that lock ring 6b centre distance lever 7 articulates pouring weight 10 one end distances, and the weight of pouring weight 10 is P, and therefore, socket 5a clamping place is subject to horizontal side force to be
the size of concrete side force is determined according to experimental technique documentation requirements.Owing in test rear shock absorber 5 having been applied to side force, socket 5b, under the impact of side force F, produces transversal displacement trend, causes the additional resistance that in the relative socket 5b of piston rod 5a moving process, deformation produces, therefore, Static load characteristics resistance measurement value is greater than stiction test value.The object that applies side force in Static load characteristics test is the actual condition that simulation rear shock absorber 5 is installed on motorcycle, make rear shock absorber 5 Static load characteristics test findings truly reflect the stressing conditions under rear shock absorber actual working state, Static load characteristics resistance measurement result should be less than the setting of product technology file.
Fig. 5 is this test unit Static load characteristics measured curve figure.Static load characteristics measured curve is the corresponding relation curve that power sensor 3 and displacement transducer 2 are surveyed, and wherein, horizontal ordinate is shift value, and ordinate is power value.The start of a run of test is near the maximum extension elongation of rear shock absorber 5 piston rod 5a, driving mechanism 1 declines and makes rear shock absorber 5 by compression, it is compression travel, driving mechanism 1 is promoted to rear shock absorber 5 and stretches recovery, restore stroke, the force-displacement relationship of compression travel is top curve in figure, and the force-displacement relationship curve that restores stroke is lower curve.Due to rear shock absorber 5 is being carried out having removed damping spring before Static load characteristics test, resulting quiescent load curve and transverse axis almost symmetry, the quiescent load resistance of each point is the corresponding F in this displacement place
y-F
fvalue, as seen from the figure, resulting quiescent load resistance is left large and right small, this is because apply the result of side force.The theoretical value of Static load characteristics is the Static load characteristics mean value of whole test trip, it is measured value that actual Static load characteristics generally be take the Static load characteristics mean value of some travel point (as initial, the centre of stroke and end 3 points), it is qualified being less than setting, and it is defective being greater than setting.
Claims (4)
1. a rear shock absorber of motorcycle Static load characteristics test unit, comprise drive unit and clamping device that coaxial cable is setting up and down, it is characterized in that: described drive unit comprises driving mechanism (1), power sensor (3) and the screw thread chuck (4) being connected successively from top to bottom, and the motion parts of wherein said driving mechanism (1) is also connected with a displacement transducer (2), described clamping device comprises the support (9) being connected successively from bottom to top, key seat (8) and grip slipper (6) are installed, wherein said grip slipper (6) is by upper ledge, the structure that the disconnected cross section that side frame and lower frame formation are perpendicular to one another is " Contraband " font, wherein said lower frame outerplanar is provided with protruding ear shape lock ring (6b), the pin-and-hole of lock ring (6b) passes through bearing pin (11) pin joint with the pin-and-hole that is fixed on installation key seat (8) both sides on support (9), center upper frame is provided with clamping circular hole, the perpendicular lever (7) that is connected with also on side frame outerplanar, one end that lever (7) development length is a is the perpendicular straight-bar that is connected with also, the other end of straight-bar is provided with the hanging hole that articulates pouring weight (10).
2. rear shock absorber of motorcycle Static load characteristics test unit according to claim 1, is characterized in that: described drive unit setting up and down and the spacing distance of clamping device are slightly less than the maximum length after test specimen vibroshock (5) stretches.
3. rear shock absorber of motorcycle Static load characteristics test unit according to claim 1, is characterized in that: described driving mechanism (1) is hydraulic servo oil cylinder or motor-driven reduction of speed mechanical transmission mechanism.
4. rear shock absorber of motorcycle Static load characteristics test unit according to claim 1, it is characterized in that: the clamping circular hole that described grip slipper (6) upper ledge is provided with for to obtain separated clamp (6a) after round hole axial is dissectd, and forming respectively at grip slipper (6) and clamp (6a) half-round cross hole that radian is slightly less than π, clamp (6a) is connected with screw with the screw that grip slipper (6) arranges by both sides.
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| CN201310688823.3A CN103630377B (en) | 2013-12-16 | 2013-12-16 | A kind of rear shock absorber of motorcycle Static load characteristics test unit |
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| CN201310688823.3A CN103630377B (en) | 2013-12-16 | 2013-12-16 | A kind of rear shock absorber of motorcycle Static load characteristics test unit |
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| CN103630377A true CN103630377A (en) | 2014-03-12 |
| CN103630377B CN103630377B (en) | 2015-10-28 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104198165A (en) * | 2014-07-10 | 2014-12-10 | 浙江吉利控股集团有限公司 | Shock absorber durability testing device |
| CN106370442A (en) * | 2016-08-16 | 2017-02-01 | 江苏科技大学 | Motorcycle damper assembling performance detection system and control method |
| CN106596144A (en) * | 2016-12-26 | 2017-04-26 | 北汽福田汽车股份有限公司 | Constraint component and shock absorber calibration device with the same |
| CN107036802A (en) * | 2017-06-09 | 2017-08-11 | 北京强度环境研究所 | A kind of shock absorber overloading-vibrating environment pilot system and test method |
| CN109115486A (en) * | 2018-10-24 | 2019-01-01 | 西安爱生技术集团公司 | A kind of unmanned plane oleo-pneumatic shock absorber static pressure testing device |
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2013
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Patent Citations (4)
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| CN102081014A (en) * | 2010-12-03 | 2011-06-01 | 北京华谷减振器设备有限公司 | Comprehensive performance test bed of automobile shock absorber |
| CN201945458U (en) * | 2010-12-07 | 2011-08-24 | 江苏明星减震器有限公司 | Test bed for rear-absorber performance tests |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198165A (en) * | 2014-07-10 | 2014-12-10 | 浙江吉利控股集团有限公司 | Shock absorber durability testing device |
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| CN106370442A (en) * | 2016-08-16 | 2017-02-01 | 江苏科技大学 | Motorcycle damper assembling performance detection system and control method |
| CN106370442B (en) * | 2016-08-16 | 2018-11-13 | 江苏科技大学 | A kind of motorcycle vibration absorber assembly performance detecting system and control method |
| CN106596144A (en) * | 2016-12-26 | 2017-04-26 | 北汽福田汽车股份有限公司 | Constraint component and shock absorber calibration device with the same |
| CN107036802A (en) * | 2017-06-09 | 2017-08-11 | 北京强度环境研究所 | A kind of shock absorber overloading-vibrating environment pilot system and test method |
| CN109115486A (en) * | 2018-10-24 | 2019-01-01 | 西安爱生技术集团公司 | A kind of unmanned plane oleo-pneumatic shock absorber static pressure testing device |
| CN109115486B (en) * | 2018-10-24 | 2023-10-17 | 西安爱生技术集团有限公司 | Unmanned aerial vehicle engine oil gas shock absorber static pressure testing arrangement |
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