CN2482521Y - Suspension test turntable for vehicle - Google Patents
Suspension test turntable for vehicle Download PDFInfo
- Publication number
- CN2482521Y CN2482521Y CN 01230824 CN01230824U CN2482521Y CN 2482521 Y CN2482521 Y CN 2482521Y CN 01230824 CN01230824 CN 01230824 CN 01230824 U CN01230824 U CN 01230824U CN 2482521 Y CN2482521 Y CN 2482521Y
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- China
- Prior art keywords
- monitor station
- eccentric
- bearing platform
- eccentric shaft
- automotive suspension
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- Expired - Lifetime
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- 239000000725 suspension Substances 0.000 title claims abstract description 23
- 238000012360 testing method Methods 0.000 title description 13
- 230000001360 synchronised effect Effects 0.000 claims abstract description 10
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 238000004458 analytical method Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000035558 fertility Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241000995620 Eusama Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model relates to a vehicle detection device, in particular, is suitable for vehicle suspension detection platform. The utility model can be achieved through following technical proposal; the utility model comprises a motor, a flywheel, a loading platform, eccentric shafts and sensors, etc. The utility model is characterized in that the motor is connected with a synchronous belt device through a flexible coupling, the synchronous belt device drives two eccentric shafts; and each eccentric shaft is provided with two eccentric wheels; one end of four sensors is fixed at the loading platform, the other end is contacted with the flywheel.
Description
The utility model has related to a kind of vehicle inspection and test device, particularly suitable automotive suspension monitor station.
Draft hitch is the coupling components of vehicle body and axletree, and its radical function is: relax in the vehicle traveling process, vibration that Uneven road causes and impact guarantee that automobile has good ride comfort; The vibration of decay vehicle body and vehicle bridge rapidly; Various power and the moment of transfer function between wheel and vehicle body; Safety and road-holding property when guaranteeing running car.Therefore, each the element quality and the overall performance of automotive suspension device have material impact to the running car performance.For guaranteeing automotive safety, running at high speed, vehicle handling stability can come into one's own day by day, and road-holding property has become one of important performance of modern automobile.And the performance of automotive suspension device directly influences road-holding property, driving safety and ride comfort.Therefore, detect the serviceability of performance, the especially shock absorber of draft hitch, to guaranteeing that vehicle in use road-holding property, driving safety are very important.The elastic element of automotive suspension device or shock absorber damage, and not only influence vehicle running smoothness, and the running car road-holding property is worsened, and ride safety of automobile degenerates.
At present the draft hitch monitor station that occurs all is to utilize to detect the land principle of power of wheel and estimate the quality of draft hitch and performance fast.And the measurement standard that uses European shock absorber association of manufactures EUSAMA to recommend: the load during the automotive wheel stable state, the static state that is defined as wheel and road soil fertility.Wheel is under certain dynamic excitation vibration, and the live load of automotive wheel on monitor station is defined as dynamic load, with the ratio of the minimum value of dynamic load and the static load critical for the evaluation as the automotive suspension device.
The automotive suspension monitor station generally all adopts resonant mode to detect at present, and automotive suspension monitor station both domestic and external mainly contains following two types
The structural principle of first type of suspension monitor station is as shown in Figure 1: in the test process, motor drives eccentric stiffener, connecting rod mechanism movement by coupler, to detecting the table top excitation, detect the perpendicular movement of table top, make automobile produce forced vibration, stall after motor reaches maximum speed of revolution by the energy storage original paper---flywheel releases energy, is carried out the frequency sweep exciting to automobile.The initial frequency of frequency sweep exciting is higher than the natural frequency of tire-suspension system, when the natural frequency of frequency sweep frequency and tire-suspension system is identical, produces resonance.The control part of monitor station carries out sampling analysis by displacement pickup to the displacement of monitor station table top in the frequency sweep process.From top analysis as seen, there is following limitation in this kind monitor station: 1, the direct result that records of monitor station be automobile when forced vibration, monitor station shakes
The relative displacement of moving system and automotive wheel will seek out test result, and is promptly moving
Minimum value that attitude soil fertility and static the ratio of soil fertility must be changeed displacement
Change dynamic force into, and monitor station in the test process---automobile is formed nonlinear vibration
Moving system is difficult to obtain accurate transformation result, and therefore, measuring accuracy is subjected to
Certain influence; 2, the test philosophy of monitor station has determined its mechanical stage body must guarantee higher accuracy of manufacture, thereby has increased the manufacture difficulty of mechanics, has improved manufacturing cost; 3, owing to the restriction of monitor station physical construction, during on-site installation, table top is above the ground level, and causes certain difficulty for car; 4, the test area of monitor station (axle is heavy less than 1.1 tons) is less, and therefore the vehicle that can test is also less.
The structural principle of second kind of automotive suspension monitor station is as shown in Figure 2: this kind monitor station is compared with first kind of monitor station, its physical construction has been done bigger improvement, the elasticity original paper greatly reduces, in the test process, driven by motor flywheel---eccentric wheel---connecting rod mechanism makes the monitor station table top do perpendicular movement up and down, and automobile is carried out exciting.Control system soil fertility by pressure sensor to automobile and is carried out sampling analysis, and test method is more direct, test area big (axle is heavy less than 2.5 tons), and manufacturing technology is simple, and precision is easy to control.From top analysis as seen, there is following limitation in this kind monitor station: 1, the motor drives eccentric wheel is to the table top exciting, and eccentric wheel is fixed on the projecting shaft,
Make projecting shaft be subjected to bigger radial pressure and torsional interaction, become easily
Shape, and because all contact pressures act on the eccentric wheel eccentric wheel and platform
Sliding friction power between the body is bigger, not only makes the eccentric wheel serious wear, and
Make exciting amplitude accuracy variation, influence the service life and the measuring accuracy of stage body; 2, accuracy of detection and repeatable accuracy are relatively poor: during test, automotive wheel is at monitor station
On the position be ccasual, checking system itself can't be to automobile at the monitor station platform
Position on the face is accurately judged, also just can't transfer automobile position
Whole, and the position of automobile on the monitor station table top directly influences testing result, because of
This has influenced accuracy of detection and repeatable accuracy;
The purpose of this utility model is to provide a kind of cost of manufacture low, and measuring accuracy and repeatable accuracy height are crossed car automotive suspension monitor station easily.
The utility model is achieved by the following technical solution: the utility model is made up of motor, flywheel, bearing platform, eccentric shaft and sensor etc., it is characterized in that the logical flexible clutch of motor connects synchronous belt device, synchronous belt device drives two eccentric shafts, and two eccentric wheel are arranged on each eccentric shaft; Four sensor one ends are fixed on the bearing platform, and the other end contacts with flywheel.
Four sensors of the present utility model can also be evenly distributed on four angles under the load-bearing table top.Flywheel is housed on the eccentric shaft, and the eccentric shaft two ends are supported by two bearings, adorn two antifriction-bearing boxs on each eccentric shaft.Four eccentric wheel are distributed in horizontal support under four angles of bearing platform.The nylon jacket guide piece is housed between bearing platform and casing.
It is low that the utility model and has technology to compare to have cost of manufacture, and measuring accuracy and repeatable accuracy height are crossed advantages such as car is convenient.
Description of drawings of the present utility model is as follows:
Fig. 1 is a kind of structure principle chart of prior art automotive suspension monitor station.
Fig. 2 is the structure principle chart of another kind of prior art automotive suspension monitor station.
Fig. 3 is a front view of the present utility model.
Fig. 4 is a birds-eye view of the present utility model.
Fig. 5 is the utility model bearing platform force analysis scheme drawing.
Fig. 6 is the utility model bearing platform A direction force analysis scheme drawing.
Fig. 7 is the utility model bearing platform B direction force analysis scheme drawing.
Below in conjunction with description of drawings the utility model is described in further detail: as shown in Figure 3, Figure 4, the mechanics of this automotive suspension device monitor station by casing with about two the cover identical vibrating system constitute, so only represent the structure diagram on its right side, drive motor 1 drives eccentric shaft 7 rotations by flexible clutch 2 among the figure.Initiatively on the eccentric shaft accumulated energy flywheel 3 and synchronous belt device 8 are housed.Energy reserve when accumulated energy flywheel rotates at motor, the drive eccentric shaft that releases energy when motor stops to be rotated further.Synchronous belt device is made up of synchronous band, synchronous pulley and swelling device, makes accurately synchrodrive of two eccentric shafts.Each eccentric shaft two ends is compared with single-ended fixing cantilever beam by two bearings, and distortion can be little a lot.Be equipped with on each eccentric shaft and be with two antifriction-bearing boxs, so just quite with on an axle two eccentric wheel are arranged, because they are actually an eccentric shaft, therefore can guarantee two eccentric conformability, reduced difficulty of processing owing to be antifriction-bearing box, with table top be friction of rolling, reduce the wearing and tearing of eccentric wheel and table top, guaranteed the service life and the measuring accuracy of stage body from machinery.Four eccentric wheel are distributed in horizontal support under four angles of bearing platform 5, guarantee that bearing platform can remain level when the difference stand under load.Because four eccentric horizontal supports are arranged, so table top can bear bigger load, increased test area.Nylon jacket guide piece 9 is housed between bearing platform and casing, guarantees the bearing platform vertical shifting.Because there was variable-acceleration in bearing platform when eccentric shaft drove the bearing platform motion, break away from eccentric wheel for preventing bearing platform, between bearing platform and casing so spring tensioning means 6 is housed.Four sensor one ends are fixed on the bearing platform, and an end contacts with flywheel, and directly dynamic the soil fertility during measuring vibrations need not pass through other switching processs again, so can be obtained very high result of a measurement.Owing to distribute on four angles of sensor under table top, the position of load on the bearing platform that can accurately survey, guaranteeing to measure has better repeatability.Whole stage body is installed in the melt pit, and table top and ground keep level, can not impact crossing car like this.
The positioning principle of sensor is summarized as follows: the force analysis of bearing platform supposes that wheel is the F wheel to the pressure of table top, the stressed N1 that is respectively of four sensors, N2, N3, N4 as shown in Figure 5.Then have:
Therefore the N1+N2+N3+N4=F wheel just can obtain gross pressure by the stressed summation of measuring four sensors.For the location of load position, we analyze from both direction,
1) A direction
On the A direction, the force analysis of bearing platform can be reduced to a leverage, its force analysis as shown in Figure 6, shown in figure, we can obtain:
L2/L1=(N1+N4)/(N2+N3) is owing to (L1+L2) be the position between the sensor support point of the left and right sides, and therefore, the result of a measurement by four sensors can accurately obtain the position of load on the A direction.
2) B direction
B to principle and A to being the same, on the B direction, the force analysis of bearing platform also can be reduced to a leverage, its force analysis as shown in Figure 7, shown in figure, we can obtain:
L4/L3=(N1+N2)/(N3+N4) is owing to (L1+L2) be the position between the sensor support point of the left and right sides, and therefore, the result of a measurement by four sensors can accurately obtain the position of load on the B direction.
In a word,, not only obtained the total weight of load, also can obtain the exact location of load on table top by measuring the output of four sensors.
Claims (5)
1, a kind of automotive suspension monitor station is made up of motor, flywheel, bearing platform, eccentric shaft and sensor etc., it is characterized in that motor connects synchronous belt device by flexible clutch, and synchronous belt device drives two eccentric shafts, and two eccentric wheel are arranged on each eccentric shaft; Four sensor one ends are fixed on the bearing platform, and the other end contacts with flywheel.
2, automotive suspension monitor station according to claim 1 is characterized in that four sensors are evenly distributed on four angles under the load-bearing table top.
3, automotive suspension monitor station according to claim 1 is characterized in that being equipped with on the eccentric shaft flywheel, and the eccentric shaft two ends are supported by two bearings, adorns two antifriction-bearing boxs on each eccentric shaft.
4, automotive suspension monitor station according to claim 1 is characterized in that four eccentric wheel are distributed in horizontal support under four angles of bearing platform.
5, according to claim 1 or 2 or 4 described automotive suspension monitor stations, it is characterized in that between bearing platform and casing, being equipped with the nylon jacket guide piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01230824 CN2482521Y (en) | 2001-07-20 | 2001-07-20 | Suspension test turntable for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01230824 CN2482521Y (en) | 2001-07-20 | 2001-07-20 | Suspension test turntable for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2482521Y true CN2482521Y (en) | 2002-03-20 |
Family
ID=33645272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01230824 Expired - Lifetime CN2482521Y (en) | 2001-07-20 | 2001-07-20 | Suspension test turntable for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2482521Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645150A (en) * | 2012-04-16 | 2012-08-22 | 江苏申模数字化制造技术有限公司 | Adjustable locating mechanism of large automobile simulation block inspection device |
| CN103376212A (en) * | 2012-04-24 | 2013-10-30 | 古丽亚诺集团股份公司 | Test bench for suspensions of vehicles |
| CN105699180A (en) * | 2014-11-28 | 2016-06-22 | 上海汽车集团股份有限公司 | A fatigue test clamp |
| CN107449609A (en) * | 2017-07-06 | 2017-12-08 | 同济大学 | A kind of power assembly active engine mount experimental stand |
-
2001
- 2001-07-20 CN CN 01230824 patent/CN2482521Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645150A (en) * | 2012-04-16 | 2012-08-22 | 江苏申模数字化制造技术有限公司 | Adjustable locating mechanism of large automobile simulation block inspection device |
| CN103376212A (en) * | 2012-04-24 | 2013-10-30 | 古丽亚诺集团股份公司 | Test bench for suspensions of vehicles |
| CN105699180A (en) * | 2014-11-28 | 2016-06-22 | 上海汽车集团股份有限公司 | A fatigue test clamp |
| CN107449609A (en) * | 2017-07-06 | 2017-12-08 | 同济大学 | A kind of power assembly active engine mount experimental stand |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN MUNICIPAL SCIENCE AND TECHNOLOGY DEVELOPM Free format text: FORMER NAME OR ADDRESS: LEI SHENZHEN CITY INDUSTRIAL CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: F5.8, 4C1-A, Tian An Industrial Zone, Futian District, Guangdong, Shenzhen, Che Kung Temple Patentee after: Shenzhen Safety Technology Development Co.,Ltd. Address before: C building, block four, Tian Ji building, Tian Tian Digital City, Shenzhen, Guangdong, Futian District Patentee before: DALEI IND Co.,Ltd. SHENZHEN CITY |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Patentee address after: 518051 Guangdong city of Shenzhen province Nanshan District Road No. 11018 building 14 floor H-I bonanza Patentee address before: 518040 Guangdong city of Shenzhen province Futian District Che Kung Temple F5.8 Tian Industrial Zone 4C1A |
|
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN ANCHE DETECTION TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHENZHEN MUNICIPAL SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LTD. OF CAR Effective date: 20061027 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20061027 Address after: 518052 Guangdong city in Shenzhen Province, Nanshan District Shennan Road, grand view building 14F Patentee after: Shenzhen Anche Testing Technology Co.,Ltd. Address before: 518051 Guangdong city of Shenzhen province Nanshan District Road No. 11018 building 14 floor H-I bonanza Patentee before: Shenzhen Safety Technology Development Co.,Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110720 Granted publication date: 20020320 |