CN102519734A - Motorcycle frame rigidity performance test device - Google Patents
Motorcycle frame rigidity performance test device Download PDFInfo
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- CN102519734A CN102519734A CN2011104219264A CN201110421926A CN102519734A CN 102519734 A CN102519734 A CN 102519734A CN 2011104219264 A CN2011104219264 A CN 2011104219264A CN 201110421926 A CN201110421926 A CN 201110421926A CN 102519734 A CN102519734 A CN 102519734A
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Abstract
The invention discloses a motorcycle frame rigidity performance test device. The device comprises a pedestal. The pedestal is provided with a vertical pressure cylinder and a horizontal pressure cylinder respectively. Tail ends of the two pressure cylinders are connected with a vertical pressure sensor and a horizontal pressure sensor respectively. The other end of the vertical pressure sensor is connected with a rear pressure plate seat. The other end of the horizontal pressure sensor is connected with a horizontal slide carriage. A headstock rod support is fixed on the horizontal slide carriage. A headstock rod shaft, which is used to fix a front fork of a motorcycle frame, is installed on the headstock rod support. Side edges of the rear pressure plate seat and the horizontal slide carriage are provided with grating scale sliding plates. A left support seat and a right support seat, which are used to fix a rear fork, are fixedly arranged at a position which is close to a vertical rack on a horizontal rack of the pedestal. According to the invention, an actual road frame rigidity performance test before a new product is put in production can be abandoned. A structure is simple and reasonable. A demand for testing and evaluating frame intensity and rigidity performance during a development process of the motorcycle frame can be satisfied. By using the device of the invention, the new product can be rapidly made into markets.
Description
Technical field
The present invention relates to a kind of performance testing device, particularly a kind of being used for tests to guarantee that it has the frame of motorcycle rigidity property proving installation of enough securities the intensity or the rigidity of motor cycle vehicle frame of exploitation.
Background technology
Frame of motorcycle is the very strict large-scale primary structure member of a requirement, and it must have enough strength and stiffness, has enough security performances to guarantee the motorcycle that dispatches from the factory.Under the effect of load, vehicle frame must have enough static strengths and fatigue strength.Static strength is meant when withstanding shocks load, the ability of vehicle frame opposing permanent strain.Fatigue strength is meant motorcycle in the process of moving, does not produce the ability of fatigue crack and fatigue break when bearing alterante stress.Facts have proved that the main damage type of frame of motorcycle is fatigure failure at present, general cracking at regional area (welding joint place) earlier, crack propagation causes fracture then.Fatigue strength is not enough, after use a period of time, major accidents such as fracture of frame, permanent strain takes place easily, brings serious threat to personal safety.And at present the on-the-spot test method is generally adopted in the performance test of frame of motorcycle newly developed; On-the-spot test can be verified reliability of products, also is the most reliable method of inspection, collects on-the-spot product data and in whole test, plays a part very important; So at present general new product is before putting into production; Need carry out the road test of 6000-10000 kilometer, by the regulation requirement of relevant industries, this test need make an experiment at a certain proportion of road type; Not only to spend three months at least, need drop into a large amount of financial resource and material resource simultaneously; In addition; Collecting field data is that item is born the challenge task; Its difficult point is that every section time service situation is difficult to unanimity, and length consuming time is when at length writing down product operating position overall process; Just must there be corresponding managerial personnel to carry out organization and administration, so just can obtain data more accurately.Traditional Road method of testing consumption wealth consuming time lavishes labor on, and it is also unfavorable that new product is put goods on the market fast.
Summary of the invention
In order to overcome the deficiency of prior art, the present invention provide a kind of utilize the force-bearing situation of pressure cylinder simulated motorcycle in actual travel to the strength and stiffness of frame of motorcycle test, the frame of motorcycle rigidity property proving installation of simple and reasonable, easy for installation, easy operating.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of frame of motorcycle rigidity property proving installation; It comprises base; Be installed with the pressure at right angle cylinder on the vertical rack of base; The piston-rod end of pressure at right angle cylinder is connected with the rear fender seat that is used for applying the simulation pressure at right angle to motorcycle stand, and a vertical side of rear fender seat is equipped with vertical raster chi slide plate, and the pairing vertical raster chi of vertical raster chi slide plate is fixed on the base; On the level frame of said base horizontal seat is installed, is installed with the horizontal pressure force cylinder through the cross cylinder seat on the horizontal seat, the piston-rod end of horizontal pressure force cylinder is connected with horizontal slide, and horizontal slide is fixed on the horizontal linear guide rail that is installed on the horizontal seat; Be fixed with the headstock rod bearing on the said horizontal slide, the headstock bar axle that is used for fixing the frame of motorcycle front fork is installed on the headstock rod bearing; Said horizontal slide is equipped with horizontal grating chi slide plate along a side of horizontal linear guide rail direction, and the pairing horizontal grating chi of horizontal grating chi slide plate is fixedly arranged on the horizontal seat; Contiguous vertical rack limit is installed with the left and right carrier base that is used for fixing chain stay behind the frame of motorcycle on the said base level frame.
Preferably, said horizontal pressure force cylinder is connected with horizontal slide through the horizontal pressure force sensor, and the horizontal pressure force sensor is fixedly connected on the horizontal slide through the horizon sensor bearing.
Further, said pressure at right angle cylinder is connected with the rear fender seat through the pressure at right angle sensor, and the pressure at right angle sensor is fixedly connected on the rear fender seat through the vertical reference bearing.
Preferably; Said pressure at right angle sensor connects with the rear fender seat through vertical sliding; The vertical reference bearing directly connects with vertical sliding; The rear fender seat is installed on the vertical sliding, and vertical sliding is installed on through slide block on the vertical line slide rail that is positioned on the base, and vertical raster chi slide plate is installed on the side of vertical sliding.
Further, an end of the contiguous frame of motorcycle of said rear fender seat is equipped with the back depression bar.
Further, said headstock bar axle connects with the frame of motorcycle front fork through the horizontal holder of the vehicle frame that is fixedly installed in its top.
Further, said pressure at right angle cylinder and horizontal pressure force cylinder are hydraulic cylinder, pneumatic cylinder or pressurized cylinder.
Preferably, said horizontal slide is equipped with the position transducer sensing chip along another side of horizontal linear guide rail direction, and the pairing position transducer of position transducer sensing chip is fixedly arranged on the horizontal seat.
Preferably, said device also comprises the engine mockup that is installed on the frame of motorcycle.
The invention has the beneficial effects as follows: the present invention exerts pressure simulated motorcycle stressing conditions in the process of moving through pressure cylinder to vehicle frame; Through pressure transducer and grating chi power in the pressure cylinder power loading procedure and displacement are carried out Monitoring and Controlling to realize that the strength and stiffness of frame of motorcycle are done further analysis; Abandoned the real road vehicle frame performance test of carrying out before new product puts into production in the past; Avoid dropping into great amount of manpower and material resources and time; And the vehicle frame that can be directed against the motor cycle type of different model carries out rigidity property monitoring, simple and reasonable, easy for installation, easy operating; Solved frame of motorcycle on stream to the demand of frame strength and rigidity property test evaluation, also helped new product and put goods on the market fast.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
The force-bearing situation that Fig. 1 is a motorcycle when high bank falls;
Fig. 2 is that motorcycle is topped bar or the force-bearing situation during boss;
Fig. 3 is a mounting structure synoptic diagram of the present invention;
Fig. 4 is the mounting structure synoptic diagram that the present invention removes pressure at right angle cylinder behind the base and associated fitting thereof;
Fig. 5 is the mounting structure synoptic diagram that the present invention removes horizontal pressure force cylinder behind the base and associated fitting thereof;
Fig. 6 is the structural representation of left and right carrier base among the present invention;
Fig. 7 is the structural representation of engine mockup among the present invention;
Fig. 8 is the structural representation of frame of motorcycle;
Fig. 9 installs one-piece construction figure of the present invention behind the frame of motorcycle;
Figure 10 is the systematic schematic diagram that surges that the present invention is associated.
Embodiment
With reference to Fig. 3 ~ Fig. 9, a kind of frame of motorcycle rigidity property proving installation of the present invention, it comprises base 1, is installed with pressure at right angle cylinder 2 on the vertical rack of base 1, pressure at right angle cylinder 2 is used for producing the road analogy pressure at right angle to frame of motorcycle to be tested 24; The piston-rod end of pressure at right angle cylinder 2 is connected with the rear fender seat 4 that is used for directly applying the simulation pressure at right angle to motorcycle stand 24; Preferably; Pressure at right angle cylinder 2 is connected with rear fender seat 4 through pressure at right angle sensor 3, and pressure at right angle sensor 3 is fixedly connected on the rear fender seat 4 through vertical reference bearing 31; The simulation pressure at right angle that pressure at right angle cylinder 2 produces is delivered on the back rest 241 of frame of motorcycle 24 through rear fender seat 4; One vertical side of rear fender seat 4 is equipped with vertical raster chi slide plate 5, and vertical raster chi slide plate 5 pairing vertical raster chis 51 are fixed on the base 1; Horizontal seat 6 is installed on the level frame of said base 1; Be installed with horizontal pressure force cylinder 8 through cross cylinder seat 7 on the horizontal seat 6; Horizontal pressure force cylinder 8 is used for producing the road analogy horizontal pressure force to frame of motorcycle 24; The piston-rod end of horizontal pressure force cylinder 8 is connected with horizontal slide 10, and preferably, horizontal pressure force cylinder 8 is connected with horizontal slide 10 through horizontal pressure force sensor 9; Horizontal pressure force sensor 9 is fixedly connected on the horizontal slide 10 through horizon sensor bearing 91, and horizontal slide 10 is fixed on the horizontal linear guide rail 61 that is installed on the horizontal seat 6; Be fixed with headstock rod bearing 11 on the said horizontal slide 10; The headstock bar axle 12 that is used for fixing frame of motorcycle front fork 242 is installed on the headstock rod bearing 11; Headstock rod bearing 11 is hinged through the front-wheel revolving shaft with headstock bar axle 12; Headstock bar axle 12 just can have certain corner like this, with the forms of motion of simulated motorcycle front fork 242 when bearing horizontal impact, in addition; The setting of horizontal slide 10 has also adapted to the needs of frame of motorcycle front fork 242 displacements when giving frame of motorcycle 24 loading simulation pressure at right angles in vertical direction, has guaranteed that horizontal displacement in the horizontal direction; Said horizontal slide 10 is equipped with horizontal grating chi slide plate 13 along a side of horizontal linear guide rail 61 directions, and horizontal grating chi slide plate 13 pairing horizontal grating chis 14 are fixedly arranged on the horizontal seat 6; Contiguous vertical rack limit is installed with the left and right carrier base 15,16 that is used for fixing chain stay 243 behind the frame of motorcycle on said base 1 level frame.With reference to shown in Figure 1; When motorcycle when higher bank falls; Ground can form a stronger impulsive force vertically upward to motorcycle; Surplus through after tire, the incomplete absorption of vibroshock acts on the vehicle frame 24 vertically upward, and the load mode of the strength and stiffness of vehicle frame vertical direction test promptly comes therefrom; With reference to shown in Figure 2; Motorcycle in the process of going, run into top bar or during boss front-wheel can receive step or boss is excited by impact to its; Front-wheel is when the impact that receives from the road surface; The impulsive force F that front-wheel receives can be decomposed into horizontal direction component Fh and vertical direction component Fv; The component major part of vertical direction is absorbed by buffer bodies such as tire and vibroshocks, and the power that therefore acts on the vehicle frame 24 can be reduced to the pulling force on the horizontal direction, and the load mode of the strength and stiffness test of vehicle frame horizontal direction promptly comes therefrom.With reference to shown in Figure 10; When pressure at right angle cylinder 2 is selected hydraulic cylinder; The oil sources of pressure at right angle cylinder 2 is a fixed displacement pump; The working pressure that fixed displacement pump is exported can be set and control by surplus valve; The set screw of control module control step motor rotation surplus valve can realize the adjusting of pressure, and the hydraulic oil with certain pressure of fixed displacement pump output leads to electrohydraulic servo valve, through the piston rod direction motion on request of electrohydraulic servo valve control pressure at right angle cylinder 2; And apply the pressure that sets; Pressure at right angle sensor 3 also has feedback function in addition, and pressure at right angle sensor 3 feeds back to the output pressure of vertical hydraulic cylinder 2 piston-rod ends control module and the command signal of itself and control module output is compared differentiation, feeds back to the size of electrohydraulic servo valve with control electrohydraulic servo valve output oil pressure power with differentiating the result through power amplifier; The final stressed general as sinusoidal stressed general sinusoidal pressure at right angle of exporting that realizes that pressure at right angle cylinder 2 piston rod output terminals send according to control module is so that test the fatigue strength and the rigidity of frame of motorcycle 24; Certainly, when the piston-rod end of pressure at right angle cylinder 2 did not connect pressure at right angle sensor 3, this moment, available three four-way valves substituted electrohydraulic servo valve, and the pressure of pressure at right angle cylinder 2 piston rods output this moment is the pressure of surplus valve control; The system principle that surges when horizontal pressure force cylinder 8 is selected hydraulic cylinder for use is with vertical hydraulic cylinder 2.When need simulated motorcycle stressed when not only having received horizontal pull but also having received the force-bearing situation of pressure at right angle under the complex situations; Device according to the invention produces the road analogy pressure at right angle through pressure at right angle cylinder 2; The simulation pressure at right angle that pressure at right angle cylinder 2 is produced passes to rear fender seat 4 through pressure at right angle sensor 3; Rear fender seat 4 directly will be simulated pressure at right angle and will be applied on the back rest 241 of frame of motorcycle 24; Can pick up the size and the variation of pressure in the pressure at right angle loading procedure through pressure at right angle sensor 3; And the vertical raster chi slide plate 5 that is installed on rear fender seat 4 sides can be recorded in the process of simulation pressure at right angle loading with the vertical raster chi 51 that is fixedly arranged on the base 1, the stress deformation of frame of motorcycle 24; Produce the road analogy horizontal pressure force through horizontal pressure force cylinder 8; The dummy level pressure that horizontal pressure force cylinder 8 is produced passes to the horizontal slide 10 that is fixed on the horizontal linear guide rail 61 that is installed on the horizontal seat 6 through horizontal pressure force sensor 9; Horizontal slide 10 passes to frame of motorcycle 24 with dummy level pressure through headstock rod bearing 11 and headstock bar axle 12 again; The horizontal pressure force sensor 9 that is installed on horizontal pressure force cylinder 8 piston-rod ends can be recorded in the dummy level pressure-loaded process with horizontal grating chi slide plate 13 that is installed on horizontal slide 10 sides and corresponding horizontal grating chi 14 thereof equally; The size of the horizontal pressure force that frame of motorcycle 24 receives and the stress deformation of frame of motorcycle; Through two groups of pressure transducers and grating chi; Pressure in the loading procedure and deformation displacement have been reached the purpose of picking up monitoring record control; Made things convenient for further assay, solved the needs that frame of motorcycle is estimated strength and stiffness Performance Detection on vehicle frame horizontal direction and the vertical direction on stream frame of motorcycle strength and stiffness performance; When only needing simulated motorcycle when topping bar or frame of motorcycle receives the force-bearing situation of horizontal pull during boss; Can be with the back rest 241 of rear fender piece 4 away from frame of motorcycle; Utilize 8 pairs of frame of motorcycles 24 of horizontal pressure force cylinder to apply the dummy level pulling force then, can realize test vehicle frame rigidity property on the horizontal direction through horizontal grating chi slide plate 13 and corresponding horizontal grating chi 14 and horizontal pressure force sensor 9; When frame of motorcycle receives the force-bearing situation of pressure at right angle when only needing simulated motorcycle at Xia Gaokan; Can the oil inlet and oil return pipeline of horizontal pressure force cylinder 8 be communicated with; To realize the needs of frame of motorcycle front fork 242 displacements; Guarantee that horizontal displacement in the horizontal direction; Pass through pressure at right angle cylinder 2 loading simulation pressure at right angles then on the frame of motorcycle back rest 241, can realize test vehicle frame rigidity property on the vertical direction through vertical raster chi slide plate 5 and corresponding vertical raster chi 51 and pressure at right angle sensor 3.
Preferably; Said pressure at right angle sensor 3 connects with rear fender seat 4 through vertical sliding 17; Vertical reference bearing 31 directly connects with vertical sliding 17; Rear fender seat 4 is installed on the vertical sliding 17, and vertical sliding 17 is installed on through slide block on the vertical line slide rail 18 that is positioned on the base 1, and vertical raster chi slide plate 5 is installed on the side of vertical sliding 17.In order to increase intensity and the stability of rear fender seat 4 when frame of motorcycle 24 being applied the simulation pressure at right angle; Preferably rear fender seat 4 is fixedly installed on the vertical sliding 17; Vertical sliding 17 connects with pressure at right angle sensor 3 through vertical reference bearing 31, in addition, rear fender seat 4 is fixedly mounted on the vertical sliding 17; The bending bounce-back of the rear fender seat 4 that the reacting force of 24 pairs of rear fender seats 4 of frame of motorcycle causes when also having avoided rear fender seat 4 to apply the simulation pressure at right angle; Improve the sensitivity of vertical raster chi slide plate 5 Monitoring and Controlling, simultaneously Given this, can vertical raster chi slide plate 5 be fixedly installed in the side of vertical sliding 17; Increased the compactedness of whole device, made this more reasonable structure.
Further, an end of said rear fender seat 4 contiguous frame of motorcycles is equipped with back depression bar 19.Install back depression bar 19 at the end of rear fender seat 4, reduced the volume of rear fender seat 4 greatly, make rear fender seat 4 needn't cater to the width of frame of motorcycle 24; Reduced the weight of rear fender seat 4; Practiced thrift material, reduced manufacturing cost and use cost, back depression bar 19 is with respect to rear fender seat 4 in addition; The power that acts on the frame of motorcycle 24 is more concentrated, more near the stressing conditions in the motorcycle actual travel process.
Further, said headstock bar axle 12 connects with the frame of motorcycle front fork through the horizontal holder 21 of the vehicle frame that is fixedly installed in its top.Directly be socketed on the headstock bar axle 12 than front fork 242, use the horizontal holder 21 of vehicle frame to be fixedly connected frame of motorcycle front fork 242 and more approach the structure installation in the motorcycle reality frame of motorcycle.
Further, to above-mentioned pressure at right angle cylinder 2 and horizontal pressure force cylinder 8, can select hydraulic cylinder, pneumatic cylinder or pressurized cylinder for use.
Preferably, said horizontal slide 10 is equipped with position transducer sensing chip 21 along another side of horizontal linear guide rail 61 directions, position transducer sensing chip 21 pairing position transducers 22 set firmly with horizontal seat 6 on.The effect of position transducer 23 is to prevent that horizontal slide 10 from overstepping the limit; When horizontal slide 10 slides before and after on guide rail,, will send a pulse signal when the position transducer sensing chip 22 of horizontal slide 10 sides during through position transducers 23; Outer sliding to stop horizontal slide 10 to continue; Prevent that horizontal slide 10 from skidding off guide rail, certainly, corresponding position transducer also can be installed on the vertical sliding 17 prevent that vertical sliding 17 is derailed; In addition, also can reach the purpose that prevents two jumped slides through the stroke of controlling level pressure cylinder 8 and pressure at right angle cylinder 2.
Preferably, said device also comprises the engine mockup 23 that is installed on the frame of motorcycle.On frame of motorcycle in the middle of the motorcycle actual travel, be motorized; More approach reality for the simulation that makes vehicle frame is stressed; The engine mockup 23 of constant weight preferably is installed on frame of motorcycle, and to the user, frame of motorcycle is that engine is installed; Can engine mockup 23 be installed on the vehicle frame in the hope of simulate effect more stressed near frame of motorcycle in the actual travel when then using this proving installation; To manufacturer, the frame of motorcycle that will newly research and develop when needs just need not install engine mockup 23 with existing frame of motorcycle or when being worth the motorcycle frame structure of study to compare; Convenient and swift, with strong points.
The present invention exerts pressure simulated motorcycle stressing conditions in the process of moving through pressure cylinder to vehicle frame; Through pressure transducer and grating chi power in the pressure cylinder power loading procedure and displacement are carried out Monitoring and Controlling to realize that the strength and stiffness of frame of motorcycle are done further analysis; Abandoned the real road vehicle frame performance test of carrying out before new product puts into production in the past; Avoid dropping into great amount of manpower and material resources and time; And the vehicle frame that can be directed against the motor cycle type of different model carries out rigidity property monitoring, simple and reasonable, easy for installation, easy operating; Solved frame of motorcycle on stream to the demand of frame strength and rigidity property test evaluation, also helped new product and put goods on the market fast.
The above is preferred embodiment of the present invention, and the present invention is not limited to above-mentioned embodiment, and it is any to reach technique effect of the present invention with same or analogous means, all should belong to protection scope of the present invention.
Claims (9)
1. frame of motorcycle rigidity property proving installation; It is characterized in that: comprise base (1); Be installed with pressure at right angle cylinder (2) on the vertical rack of base (1); The piston-rod end of pressure at right angle cylinder (2) is connected with the rear fender seat (4) that is used for applying the simulation pressure at right angle to motorcycle stand, and a vertical side of rear fender seat (4) is equipped with vertical raster chi slide plate (5), and the pairing vertical raster chi of vertical raster chi slide plate (5) (51) is fixed on the base (1); Horizontal seat (6) is installed on the level frame of said base (1); Horizontal seat (6) is gone up and is installed with horizontal pressure force cylinder (8) through cross cylinder seat (7); The piston-rod end of horizontal pressure force cylinder (8) is connected with horizontal slide (10), and horizontal slide (10) is fixed on the horizontal linear guide rail (61) that is installed on the horizontal seat (6); Be fixed with headstock rod bearing (11) on the said horizontal slide (10), the headstock bar axle (12) that is used for fixing the frame of motorcycle front fork is installed on the headstock rod bearing (11); Said horizontal slide (10) is equipped with horizontal grating chi slide plate (13) along a side of horizontal linear guide rail (61) direction, and the pairing horizontal grating chi of horizontal grating chi slide plate (13) (14) is fixedly arranged on the horizontal seat (6); Contiguous vertical rack limit is installed with the left and right carrier base (15,16) that is used for fixing chain stay behind the frame of motorcycle on said base (1) level frame.
2. a kind of frame of motorcycle rigidity property proving installation according to claim 1; It is characterized in that: said horizontal pressure force cylinder (8) is connected with horizontal slide (10) through horizontal pressure force sensor (9), and horizontal pressure force sensor (9) is fixedly connected on the horizontal slide (10) through horizon sensor bearing (91).
3. a kind of frame of motorcycle rigidity property proving installation according to claim 1; It is characterized in that: said pressure at right angle cylinder (2) is connected with rear fender seat (4) through pressure at right angle sensor (3), and pressure at right angle sensor (3) is fixedly connected on the rear fender seat (4) through vertical reference bearing (31).
4. a kind of frame of motorcycle rigidity property proving installation according to claim 3; It is characterized in that: said pressure at right angle sensor (3) connects with rear fender seat (4) through vertical sliding (17); The same vertical sliding of vertical reference bearing (31) (17) directly connects; Rear fender seat (4) is installed on the vertical sliding (17); Vertical sliding (17) is installed on the vertical line slide rail (18) that is positioned on the base (1) through slide block, and vertical raster chi slide plate (5) is installed on the side of vertical sliding (17).
5. a kind of frame of motorcycle rigidity property proving installation according to claim 1 is characterized in that: an end of the contiguous frame of motorcycle of said rear fender seat (4) is equipped with back depression bar (19).
6. a kind of frame of motorcycle rigidity property proving installation according to claim 1, it is characterized in that: said headstock bar axle (12) connects with the frame of motorcycle front fork through the horizontal holder of the vehicle frame that is fixedly installed in its top (20).
7. a kind of frame of motorcycle rigidity property proving installation according to claim 1 is characterized in that: said pressure at right angle cylinder (2) and horizontal pressure force cylinder (8) are hydraulic cylinder, pneumatic cylinder or pressurized cylinder.
8. a kind of frame of motorcycle rigidity property proving installation according to claim 1; It is characterized in that: said horizontal slide (10) is equipped with position transducer sensing chip (21) along another side of horizontal linear guide rail (61) direction, and the pairing position transducer of position transducer sensing chip (21) (22) is fixedly arranged on the horizontal seat (6).
9. according to each described a kind of frame of motorcycle rigidity property proving installation in the claim 1 ~ 8, it is characterized in that: said device also comprises the engine mockup (23) that is installed on the frame of motorcycle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104219264A CN102519734A (en) | 2011-12-15 | 2011-12-15 | Motorcycle frame rigidity performance test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104219264A CN102519734A (en) | 2011-12-15 | 2011-12-15 | Motorcycle frame rigidity performance test device |
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| CN102519734A true CN102519734A (en) | 2012-06-27 |
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| CN2011104219264A Pending CN102519734A (en) | 2011-12-15 | 2011-12-15 | Motorcycle frame rigidity performance test device |
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| CN107543727A (en) * | 2017-08-22 | 2018-01-05 | 吉林大学 | Non-proportional loading degree test method in a kind of normal force control frame of motorcycle room |
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| CN107543727A (en) * | 2017-08-22 | 2018-01-05 | 吉林大学 | Non-proportional loading degree test method in a kind of normal force control frame of motorcycle room |
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Application publication date: 20120627 |