CN204087677U - Anti-vibration Performance of Vehicle Suspension experiment religion instrument - Google Patents
Anti-vibration Performance of Vehicle Suspension experiment religion instrument Download PDFInfo
- Publication number
- CN204087677U CN204087677U CN201420558803.4U CN201420558803U CN204087677U CN 204087677 U CN204087677 U CN 204087677U CN 201420558803 U CN201420558803 U CN 201420558803U CN 204087677 U CN204087677 U CN 204087677U
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- China
- Prior art keywords
- force snesor
- protective sleeve
- wheel plate
- substrate
- suspension
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Vehicle Body Suspensions (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model provides a kind of Anti-vibration Performance of Vehicle Suspension to test religion instrument, and comprise sensing device, described sensing device involving vibrations acceleration transducer, force snesor assembly, substrate, wheel plate and bearing, vibration acceleration sensor is laid in nacelle and covers; One end of substrate is provided with bearing, and the other end of substrate is provided with force snesor assembly; One end of wheel plate is flexibly connected bearing, and the other end of wheel plate is placed on force snesor assembly; Force snesor assembly comprises steel ball, protective sleeve, force snesor, covers on force snesor outside described protective sleeve, and the top of protective sleeve is provided with steel ball dimple from bit architecture, and the sidepiece of protective sleeve is equipped with grease fitting; Under wheel plate is placed in suspension place to be checked wheel, under force snesor is laid in wheel plate; By integral instrument, cancel exciting device, manpower pressing car body, overcome many deficiencies of industrial suspension parameter detecting device, reach easy to use, disclose and detect mechanism, good reliability, object that price is low.
Description
Technical field
The utility model relates to a kind of Anti-vibration Performance of Vehicle Suspension experiment religion instrument.
Background technology
As the Anti-vibration Performance of Vehicle Suspension experiment teaching instrument for automobile vocational education purposes, require easy to use, can disclose detection mechanism, result visualization, good reliability, price is low.
The industrial flat plate-type suspension parameter detecting device of general employing and resonant mode suspension parameter detecting device in automobile vocational education at present, its principle of work directly affects Detection of content, Detection results and equipment cost.
The principle of work of flat plate-type suspension parameter detecting device is: when (1) utilizes brake hard, automobile shafts carries the impact transfer of apportioning cost, inspires the response signal of suspension-wheel system.All laid force snesor under (2) four pieces of flat boards, when accepting automobile brake, automobile axle load is delivered to the impulsive force on flat board by wheel.(3) when carrying out Suspension detecting, automobile reaches detector flat board, the brake hard when the speed of a motor vehicle 5 about km/h, obtains the forward and backward suspension vibration signal in Motor Vehicle Braking Procedure, just can obtain automotive suspension vibration isolation efficiency through process.
The principle of work of resonant mode suspension parameter detecting device is: (1) eccentric wheel and detection platform when eccentric wheel rotates is touched and rubbed, and detection platform and the automotive wheel-suspension system on it are vibrated.(2) disconnect motor power after the start several seconds, rely on flywheel energy storage to start reduction of speed from rated speed, make swept frequency excitation.(3) because motor speed during power-off is higher than the natural frequency of platform-wheel-suspension system, in the process of therefore slowing down gradually at motor, " sweeping ", until stop, being gone out the natural frequency of detection platform-wheel-suspension system and this system is resonated by the single frequency sinusoidal scanning frequency excitation that platform is done to decay.(4) detect automotive wheel in swept frequency excitation process and act on the vibration signal of detection platform, just can obtain automotive suspension vibration isolation efficiency through process.
Because above-mentioned two kind equipments are that commercial production designs, therefore there is deficiency in announcement detection mechanism, result visualization, price etc.
Utility model content
The purpose of this utility model is to provide a kind of Anti-vibration Performance of Vehicle Suspension experiment religion instrument, cancel exciting device, manpower pressing car body, overcome many deficiencies of industrial suspension parameter detecting device, reach easy to use, disclose and detect mechanism, good reliability, object that price is low, solve the above-mentioned problems in the prior art.
Technical solution of the present utility model is:
A kind of Anti-vibration Performance of Vehicle Suspension experiment religion instrument, comprise sensing device, described sensing device involving vibrations acceleration transducer, force snesor assembly, substrate, wheel plate and bearing, vibration acceleration sensor is laid in nacelle and covers, and during vibration acceleration sensor impression pressing car body, suspension acts on the Vehicle Suspension Vibration response of engine compartment cover; One end of substrate is provided with bearing, and the other end of substrate is provided with force snesor assembly, and one end of wheel plate is flexibly connected bearing, and the other end of wheel plate is placed on force snesor assembly.Force snesor assembly comprises steel ball, steel protective sleeve, force snesor.The top of described protective sleeve is provided with steel ball dimple from bit architecture, and the sidepiece of protective sleeve is equipped with grease fitting.Force snesor upper boss is coordinated with the pilot hole of protective sleeve by basic shaft system, and lower boss is coordinated with the pilot hole of substrate by basic shaft system, and is fixed by screws on substrate; Under wheel plate is placed in suspension place to be checked wheel, under force snesor is laid in wheel plate, during impression pressing car body, suspension acts on the Vehicle Suspension Vibration response of wheel.
Further, also comprise integrated form control panel, vibration acceleration sensor and force snesor are connected integrated form control panel respectively.
Further, gap is had between protective sleeve and substrate.
Further, integrated form control panel arranges sampling parameter is sample frequency 50 Hz, sampling number 200.
The beneficial effects of the utility model are: this kind of Anti-vibration Performance of Vehicle Suspension experiment religion instrument, by taking technique scheme, and integral instrument, cancellation exciting device, manpower press car body further, thus overcome many deficiencies of industrial suspension parameter detecting device, reach easy to use, disclose and detect mechanism, result visualization, good reliability, object that price is low.The protective sleeve be installed in series between wheel plate and force snesor, can reduce because truck wheel weight causes wheel plate to be out of shape the force snesor transverse load caused, and to slow down in teaching the continuous repeatable operation of many people to the damage of force snesor.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation of force snesor assembly;
Wherein: 1-vibration acceleration sensor, 2-force snesor assembly, 3-substrate, 4-wheel plate, 5-bearing, 6-steel ball, 7-protective sleeve, 8-force snesor, 9-screw, 10-grease fitting, 11-integrated form control panel.
Embodiment
Preferred embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
Embodiment
A kind of Anti-vibration Performance of Vehicle Suspension experiment religion instrument, comprise sensing device, described sensing device involving vibrations acceleration transducer 1, force snesor assembly 2, substrate 3, wheel plate 4 and bearing 5, as Fig. 1, vibration acceleration sensor 1 is laid in nacelle and covers, and vibration acceleration sensor 1 experiences the Vehicle Suspension Vibration response that suspension when pressing car body acts on engine compartment cover; One end of substrate 3 is provided with bearing 5, and the other end of substrate 3 is provided with force snesor assembly 2, and one end of wheel plate 4 is flexibly connected bearing 5, and the other end of wheel plate 4 is placed on force snesor assembly 2.
As Fig. 2, force snesor assembly 2 comprises steel ball 6, steel protective sleeve 7, force snesor 8, covers on force snesor 8 outside described protective sleeve 7, and the top of protective sleeve 7 is provided with steel ball dimple from bit architecture, and the sidepiece of protective sleeve 7 is equipped with grease fitting 10.Force snesor 8 upper boss is coordinated by the pilot hole of basic shaft system with protective sleeve 7, and lower boss is coordinated by the pilot hole of basic shaft system with substrate 3, and fixing on the substrate 3 by screw 9; Under wheel plate 4 is placed in suspension place to be checked wheel, force snesor 8 is laid in wheel plate 4 times, and during impression pressing car body, suspension acts on the Vehicle Suspension Vibration response of wheel.
Vibration acceleration sensor 1 is connected integrated form control panel 11 respectively with force snesor 8.It is sample frequency 50 Hz, sampling number 200 that integrated form control panel 11 arranges sampling parameter.
The principle of work of embodiment is:
(1) under wheel plate 4 being placed in suspension place to be checked wheel.
(2) based on quasi-impulse principle, pressing excitation car body is adopted.
(3) force snesor 8 are laid in wheel plate 4 times, and during impression pressing car body, suspension acts on the Vehicle Suspension Vibration response of wheel.
(4) vibration acceleration sensors 1 are laid in nacelle and cover, and during impression pressing car body, suspension acts on the Vehicle Suspension Vibration response of engine compartment cover.
(5) the Anti-vibration Performance of Vehicle Suspension parameter such as the Vehicle Suspension Vibration response testing result time-frequency two territory figure obtained by force snesor 8 and vibration acceleration sensor 1, linear vibrating isolation system suspension efficiency, empirical method suspension efficiency, average suspension efficiency, suspension first natural frequency, acceptable criterion is shown respectively.
Be installed in series protective sleeve 7 between wheel plate 4 and force snesor 8, has the grease fitting of grease up and the structure of steel ball dimple self-alignment.The protective sleeve 7 be installed in series between wheel plate 4 and force snesor 8; the bottom of protective sleeve 7 is provided with groove; force snesor 8 is set in groove; force snesor 8 and protective sleeve 7 form dynamic cooperation; can reduce because truck wheel weight causes wheel plate 4 to be out of shape force snesor 8 transverse load caused, slow down in teaching the continuous repeatable operation of many people to the damage of force snesor 8.
Consider that the relative amplitude of suspension efficiency and suspension vibration response signal has nothing to do, consider that the first natural frequency of kart wheel is generally less than 20 Hz again, take into account the analysis requirement of sampling efficiency, Vehicle Suspension Vibration response time domain and frequency domain, arranging sampling parameter is sample frequency 50 Hz, sampling number 200.Relatively best sample frequency and sampling number are set, decrease student and detect the stand-by period, improve efficiency of teaching.
Vehicle body measuring point and wheel plate 4 measuring point are combined into six kinds of automotive suspension Efficiency testing schemes.Arrange the automotive suspension Efficiency testing scheme of combination, when facilitating student to understand detection, the feature of the impact detection mode different from automotive suspension efficiency of mode laid by various sensor.
Vehicle Suspension Vibration response testing result, by simple two-way signal, comprises vehicle body measuring point and wheel plate 4 measuring point; Four windows, comprise time-frequency two territory of simple two-way signal; Ten features, comprise detecting pattern, linear vibrating isolation system suspension efficiency, empirical method suspension efficiency, average suspension efficiency, acceptable criterion, can realize multiparameter picture synchronization display altogether.Adopt testing result multiparameter picture synchronization display mode altogether, make student recognize Anti-vibration Performance of Vehicle Suspension visually.
Can install " mark algorithm is determined in the reciprocal search of noisy oscillation inverter deamplification extreme value group " software, the extreme value group of automatic search Vehicle Suspension Vibration response signal, and the robotization that can achieve that student calculates suspension efficiency work, improve learning efficiency.
Embodiment is by integral instrument, cancellation exciting device, manpower pressing car body, and under making equal behavior pattern, price of complete machine is minimum.
Claims (4)
1. an Anti-vibration Performance of Vehicle Suspension experiment religion instrument, it is characterized in that: comprise sensing device, described sensing device involving vibrations acceleration transducer (1), force snesor assembly (2), substrate (3), wheel plate (4) and bearing (5), vibration acceleration sensor (1) is laid in nacelle and covers, and during vibration acceleration sensor (1) impression pressing car body, suspension acts on the Vehicle Suspension Vibration response of engine compartment cover, one end of substrate (3) is provided with bearing (5), the other end of substrate (3) is provided with force snesor assembly (2), one end of wheel plate (4) is flexibly connected bearing (5), the other end of wheel plate (4) is placed on force snesor assembly (2), force snesor assembly (2) comprises steel ball (6), steel protective sleeve (7), force snesor (8), the top of described protective sleeve (7) is provided with steel ball dimple from bit architecture, the sidepiece of protective sleeve (7) is equipped with grease fitting (10), sensor (8) upper boss is coordinated by the pilot hole of basic shaft system with protective sleeve (7), sensor (8) lower boss is coordinated by the pilot hole of basic shaft system with substrate (3), and be fixed on substrate (3) by screw (9), under wheel plate (4) is placed in suspension place to be checked wheel, under force snesor (8) is laid in wheel plate (4), during impression pressing car body, suspension acts on the Vehicle Suspension Vibration response of wheel.
2. Anti-vibration Performance of Vehicle Suspension experiment religion instrument as claimed in claim 1, it is characterized in that: also comprise integrated form control panel (11), vibration acceleration sensor (1) is connected integrated form control panel (11) respectively with force snesor (8).
3. Anti-vibration Performance of Vehicle Suspension experiment religion instrument as claimed in claim 1 or 2, is characterized in that: have gap between protective sleeve and substrate (3).
4. Anti-vibration Performance of Vehicle Suspension experiment religion instrument as claimed in claim 3, is characterized in that: it is sample frequency 50 Hz, sampling number 200 that integrated form control panel (11) arranges sampling parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420558803.4U CN204087677U (en) | 2014-09-26 | 2014-09-26 | Anti-vibration Performance of Vehicle Suspension experiment religion instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420558803.4U CN204087677U (en) | 2014-09-26 | 2014-09-26 | Anti-vibration Performance of Vehicle Suspension experiment religion instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204087677U true CN204087677U (en) | 2015-01-07 |
Family
ID=52180360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420558803.4U Expired - Fee Related CN204087677U (en) | 2014-09-26 | 2014-09-26 | Anti-vibration Performance of Vehicle Suspension experiment religion instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN204087677U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203312A (en) * | 2015-09-30 | 2015-12-30 | 河南飞龙(芜湖)汽车零部件有限公司 | Automobile engine support life detector |
| CN108776026A (en) * | 2018-06-14 | 2018-11-09 | 华南理工大学 | A kind of teaching test stand for indoor automobile vibration and noise testing |
-
2014
- 2014-09-26 CN CN201420558803.4U patent/CN204087677U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203312A (en) * | 2015-09-30 | 2015-12-30 | 河南飞龙(芜湖)汽车零部件有限公司 | Automobile engine support life detector |
| CN108776026A (en) * | 2018-06-14 | 2018-11-09 | 华南理工大学 | A kind of teaching test stand for indoor automobile vibration and noise testing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20200926 |