CN103604941B - A kind of wheel of vehicle device for testing rotating speed - Google Patents
A kind of wheel of vehicle device for testing rotating speed Download PDFInfo
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- CN103604941B CN103604941B CN201310616488.6A CN201310616488A CN103604941B CN 103604941 B CN103604941 B CN 103604941B CN 201310616488 A CN201310616488 A CN 201310616488A CN 103604941 B CN103604941 B CN 103604941B
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- rotating speed
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- 238000012360 testing method Methods 0.000 title claims abstract description 51
- 238000009434 installation Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 8
- 230000001052 transient effect Effects 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The invention discloses a kind of wheel of vehicle device for testing rotating speed, comprise scrambler and mounting structure, mounting structure is for being installed to wheel to be measured by scrambler.Compared with prior art, this proving installation is by being installed on wheel to be measured by scrambler, scrambler can directly test wheel transient speed, and the test error that indirectly testing can be avoided to bring, improves measuring accuracy, and test process fast, conveniently.
Description
Technical field
The invention belongs to vehicle drive system twisting vibration field tests, specifically, the present invention relates to a kind of wheel of vehicle device for testing rotating speed.
Background technology
Along with the fierceness of market competition, auto NVH is more and more subject to the attention of manufacturer and consumer.The NVH of kinematic train has influence on driving and riding comfort, is the important component part that car load NVH develops.Kinematic train is the Power output transmission system of engine, for the manual automobile of preposition forerunner, power drive system comprises parts and the assemblies such as engine, clutch coupling, wheel box, transmission shaft, in normal driving process, the operation such as starting, gearshift, open out, accelerator releasing causes the noncontinuity of power transmission, when engine output torque changes, often cause the shake of kinematic train, noise, comfortableness problem, affect ride comfort.
The NVH problem of kinematic train mainly comprises following several.One is towering car, generally appears at starting, gearshift, acceleration and deceleration operating mode, shows as the torsion vibration mode of transmission shaft, kinematic train single order torsion frequency, and frequency range is 2-10Hz, and along with gear elevated frequencies raises, amplitude reduces; Two is starting shakes, is generally the car load shake produced in the sliding process of rubbing of start clutch semi-linkage, and because clutch slip frequency and kinematic train natural frequency are close to what cause, frequency range is 5-20Hz; Three is that tooth noise beaten by wheel box, generally appears at acceleration and coasting mode, and be the beat noise that wheel box non-bearing gear produces, resonant frequency is generally 30-80Hz, and in car, response is the noise of wideband; Four is kinematic train knocks, because kinematic train exists gap, comprises pre-damping, engaging tooth wheel set, spline etc., the clear and melodious metal knock that kinematic train load variations causes, general with alarmming car generation.
The abs sensor code-disc that current vehicle wheel rotational speed proving installation has utility appliance fifth wheel instrument and wheel to carry two kinds.Fifth wheel instrument is a kind of common instrument for motor road test.During test, it is arranged on the afterbody of automobile or the appropriate location of side, with a small and exquisite wheel contacts road surface, similarly is the 5th wheel of automobile.In test, it can measure the distance of running car exactly and calculate the speed of a motor vehicle, with paper tape mode record or use numerical monitor.Therefore be usually used in automobile acceleration test, coasting test and fuel economy test.Fifth wheel instrument method of testing is used to be the steady-state speed indirectly obtaining wheel, there is larger transient error, and fifth wheel instrument lays particular emphasis on the test of steady-state signal, kinematic train NVH is analyzed to the high precision wheel transient speed needed, fifth wheel instrument does not reach test request, and expensive testing cost is high.In addition, the abs sensor code-disc of vehicle self-carrying can be utilized, outside code-disc, arrange during test that photoelectric tachometric transducer is to test wheel transient speed, but this method is often because difficult arrangement or high measurement of rotating speed signal leak convenience and the accuracy of the problems affect tests such as tooth.
Summary of the invention
The invention provides a kind of wheel of vehicle device for testing rotating speed, object is test wheel transient speed, provides test data for kinematic train NVH analyzes.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of wheel of vehicle device for testing rotating speed, comprises scrambler and mounting structure, and mounting structure is for being installed to wheel to be measured by scrambler.
Described scrambler is photoelectric encoder.
Described mounting structure comprises the first mounting disc and the second mounting disc that are connected, and described scrambler is located in the second mounting disc, and the first mounting disc is for being installed to wheel to be measured.
Described first mounting disc and the second mounting disc are disk, and the first mounting disc and the second mounting disc are for be coaxially fixedly connected with.
Described first mounting disc is connected with the wheel hub of wheel to be measured by the first erection bolt, and the first mounting disc is provided with mounting hole.
Described first erection bolt establishes threaded rod member to form with the stud being located at Rod end by surface, and stud is coaxial with rod member.
Mounting hole in described first mounting disc is the mounting hole extended along the first mounting disc radial direction.
Mounting hole in described first mounting disc is along the circumferential direction provided with eight altogether, and wherein 90 degree, four mounting hole intervals are evenly arranged, and wherein 72 degree, five mounting hole intervals are evenly arranged.
Described first mounting disc is provided with center pit.
Described second mounting disc is provided with the erection column for installing described scrambler, and erection column is coaxial with the second mounting disc.
The present invention adopts technique scheme, and compared with prior art, this proving installation is by being installed on wheel to be measured by scrambler, scrambler can directly test wheel transient speed, the test error that indirectly testing can be avoided to bring, improves measuring accuracy, and test process fast, conveniently.
Accompanying drawing explanation
Fig. 1 is the decomposing schematic representation of proving installation of the present invention;
Fig. 2 is that scrambler and connecting link assemble schematic diagram;
Mark in above-mentioned figure is: 1, wheel hub; 2, the first erection bolt; 3, the first mounting disc; 31, mounting hole; 32, center pit; 4, nut; 5, the second mounting disc; 6, the second erection bolt; 7, scrambler.
Embodiment
When carrying out vehicle drive system NVH and analyzing, need the fluctuation of speed signal of the high sampling rate of wheel, therefore need the transient speed of Special testing device to wheel to test.
As shown in Figure 1, a kind of wheel of vehicle device for testing rotating speed of the present invention, comprise scrambler 7 and mounting structure, mounting structure is for being installed to wheel to be measured by scrambler 7.Use scrambler 7, scrambler 7 can directly test wheel transient speed, and the test error that indirectly testing can be avoided to bring, improves measuring accuracy, and test process fast, conveniently.
Specifically, scrambler 7 is mounted on the wheel hub 1 of wheel to be measured, and mounting structure is arranged on wheel hub 1, and scrambler 7 is installed on mounting structure, thus scrambler 7 directly can be tested vehicle wheel rotational speed, avoids the test error that indirectly testing brings.
Mounting structure comprises the first mounting disc 3 and the second mounting disc 5 be connected, and scrambler 7 is mounted in the center position of the second mounting disc 5, and the first mounting disc 3 is for being installed to the wheel hub 1 of wheel to be measured.First mounting disc 3 and the second mounting disc 5 are rosette, and the first mounting disc 3 and the second mounting disc 5 are for be coaxially fixedly connected with, and the first mounting disc 3 is coaxially fixedly connected with wheel hub 1.After wheel hub 1 completes installation, scrambler 7 is positioned at outermost.The mounting structure of this structure has very high security, can ensure in wheel high-speed rotation indeformable, come off, thus can ensure scrambler 7 and test safety.
First mounting disc 3 is connected with the wheel hub 1 of wheel to be measured by the first erection bolt 2, and the first mounting disc 3 is provided with mounting hole 31.First erection bolt 2 establishes threaded rod member to form with the stud being located at Rod end by surface, and stud is coaxial with rod member, and stud is for being connected with the bolt on semiaxis.First mounting disc 3, through mounting hole 31, is finally locked by nut 4 by the rod member of the first erection bolt 2.First mounting disc 3 adopts and is bolted on wheel hub 1, so that the dismounting of whole proving installation and installation.
Mounting hole 31 in first mounting disc 3 is the mounting hole extended along the first mounting disc 3 radial direction, to be applicable to the wheel hub 1 of different-diameter, is convenient to the adjustment of the first erection bolt 2 position.
Mounting hole 31 in first mounting disc 3 is lines centered by the axis of the first mounting disc 3, circumferentially directional spreding in the first mounting disc 3, and be provided with eight altogether, wherein four mounting holes 31 are evenly arranged in the mode at 90 degree, interval, wherein five mounting holes 31 are evenly arranged in the mode at 72 degree, interval, therefore has a mounting hole 31(0 °) for what share.This arrangement of mounting hole 31, corresponding first erection bolt 2 can arrange four or five, to be applicable to the wheel hub 1 of common four and five bolt fixed modes of passenger car, thus improves the versatility of this proving installation.
The center position of the first mounting disc 3 is also provided with a center pit 32, dodges outstanding semiaxis design in order to some wheel, and outstanding semiaxis can insert in center pit 32, so that the installation of proving installation.
Little than the first mounting disc 3 of the diameter of the second mounting disc 5, the second mounting disc 5 is fixedly mounted in the first mounting disc 3 by three the second erection bolts 6.The center position of the second mounting disc 5 side is provided with the erection column for installing scrambler 7, erection column is coaxial with the second mounting disc 5, scrambler 7 is arranged on erection column by the mounting hole on it, according to the pore size of the mounting hole on scrambler 7, the second mounting disc 5 can be arranged the erection column of corresponding size diameter.
Scrambler 7 is identical with prior art, and scrambler 7 can adopt photoelectric encoder, and photoelectric encoder uses inner grating to produce electric pulse, and signal stabilization is reliable, and measuring accuracy is high.
Scrambler 7 can require according to different measuring accuracies and measurement condition select different grating quantity, just like 120,360, the scrambler of the different grating quantity such as 1024 is available.
Scrambler 7 is made up of inner rotation part and shell, and the erection column in the tie down screw that the inner rotation part of scrambler 7 is arranged by mounting hole normal orientation and the second mounting disc 5 is fixed, and tie down screw is clamped on erection column.
As shown in Figure 2, the shell of scrambler 7 is connected with guide pole by damping spring reed, and guide pole can be made by hollow metal tube, and power lead and the signal wire of scrambler 7 are drawn from guide pole, plays the function of protection connecting line.
Spring shock absorption sheet is arranged on the end of the shell of scrambler 7, one end of guide pole is fixedly connected with spring shock absorption sheet, the other end is fixed on position suitable on the wing plate of automobile body above wheel by flexible connection structure or recessed bond ing structure, playing the effect of regular coding device 7 shell, is the safety in order to ensure scrambler 7 when Vehicular turn by the object of flexible connection structure or recessed bond ing anatomical connectivity.
Connecting link adopts flexible connection structure, can first on wing plate of automobile body level fix a hard ring framework, then guide pole to be tied up as bungee etc. be fixed on framework by being had flexible elastic cuffs.
After this proving installation of use completes the installation of scrambler 7 on wheel to be measured, scrambler 7 is connected with test macro, arranges, debug test macro, debug complete can beginning and test.Test macro is identical with existing.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (8)
1. a wheel of vehicle device for testing rotating speed, is characterized in that: comprise scrambler and mounting structure, and mounting structure is for being installed to wheel to be measured by scrambler;
Described mounting structure comprises the first mounting disc and the second mounting disc that are fixedly connected with, first mounting disc is for being installed to wheel to be measured, second mounting disc is provided with erection column, erection column in the tie down screw that the inner rotation part of scrambler is arranged by mounting hole normal orientation and the second mounting disc is fixed, and tie down screw is clamped on erection column;
Described first mounting disc and the second mounting disc are disk, and the first mounting disc and the second mounting disc are for be coaxially fixedly connected with.
2. wheel of vehicle device for testing rotating speed according to claim 1, is characterized in that: described scrambler is photoelectric encoder.
3. wheel of vehicle device for testing rotating speed according to claim 1 and 2, is characterized in that: described first mounting disc is connected with the wheel hub of wheel to be measured by the first erection bolt, and the first mounting disc is provided with mounting hole.
4. wheel of vehicle device for testing rotating speed according to claim 3, is characterized in that: described first erection bolt establishes threaded rod member to form with the stud being located at Rod end by surface, and stud is coaxial with rod member.
5. wheel of vehicle device for testing rotating speed according to claim 4, is characterized in that: the mounting hole in described first mounting disc is the mounting hole extended along the first mounting disc radial direction.
6. wheel of vehicle device for testing rotating speed according to claim 5, it is characterized in that: the mounting hole in described first mounting disc is along the circumferential direction provided with eight altogether, wherein 90 degree, four mounting hole intervals are evenly arranged, and wherein 72 degree, five mounting hole intervals are evenly arranged.
7. wheel of vehicle device for testing rotating speed according to claim 6, is characterized in that: described first mounting disc is provided with center pit.
8. wheel of vehicle device for testing rotating speed according to claim 7, is characterized in that: described second mounting disc is provided with the erection column for installing described scrambler, and erection column is coaxial with the second mounting disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310616488.6A CN103604941B (en) | 2013-11-27 | 2013-11-27 | A kind of wheel of vehicle device for testing rotating speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310616488.6A CN103604941B (en) | 2013-11-27 | 2013-11-27 | A kind of wheel of vehicle device for testing rotating speed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103604941A CN103604941A (en) | 2014-02-26 |
| CN103604941B true CN103604941B (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310616488.6A Active CN103604941B (en) | 2013-11-27 | 2013-11-27 | A kind of wheel of vehicle device for testing rotating speed |
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| Country | Link |
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| CN (1) | CN103604941B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10345119B2 (en) | 2017-01-05 | 2019-07-09 | GM Global Technology Operations LLC | Systems for observing a rotation of a wheel |
| CN108535510A (en) * | 2018-05-29 | 2018-09-14 | 安徽大明汽车零部件有限公司 | A kind of wheel hub monitoring rotating speed |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5166218B2 (en) * | 2008-11-25 | 2013-03-21 | 株式会社ジェイテクト | Rolling bearing device with sensor |
| WO2011010593A1 (en) * | 2009-07-22 | 2011-01-27 | Ntn株式会社 | Vehicle control device and rotation detection device used in same |
| CN202088824U (en) * | 2011-05-06 | 2011-12-28 | 安徽佳通乘用子午线轮胎有限公司 | Measuring device of tire rotating speed and near-field noise |
| CN102721825B (en) * | 2012-06-10 | 2014-01-01 | 吉林大学 | Hall effect type automobile wheel speed detecting device with buffer |
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- 2013-11-27 CN CN201310616488.6A patent/CN103604941B/en active Active
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| CN103604941A (en) | 2014-02-26 |
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