CN204679285U - Automobile brake test device - Google Patents
Automobile brake test device Download PDFInfo
- Publication number
- CN204679285U CN204679285U CN201520367010.9U CN201520367010U CN204679285U CN 204679285 U CN204679285 U CN 204679285U CN 201520367010 U CN201520367010 U CN 201520367010U CN 204679285 U CN204679285 U CN 204679285U
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- automobile
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- pressing plate
- measuring unit
- pressure transducer
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Abstract
The utility model belongs to vehicle performance test field, specifically disclose a kind of automobile brake test device, comprise the signal processor for the treatment of the signal gathered, wherein, also comprise measuring unit and supply automobile to sail and roll away from the guide plate of measuring unit into, measuring unit comprises base plate, pressing plate, pulling force sensor and pressure transducer, base plate is provided with groove, described pressing plate is arranged in groove, and the upper surface of pressing plate is concordant with the upper surface of base plate, pressure transducer is fixed on the bottom surface of pressing plate, the lower end of pressure transducer is provided with roller, pulling force sensor is all connected with signal processor with pressure transducer, guide plate is connected to the two ends of base plate.Compared with traditional drum reaction braking checkout stand, this programme simulates automobile more close to normal situation about travelling, and can reflect that vehicle damping force and automobile in braking procedure, to the change of platen pressure, are measured accurately high, better effects if really.
Description
Technical field
The utility model belongs to vehicle performance test field, is specifically related to a kind of automobile brake test device.
Background technology
Automobile braking Performance Detection is an important content of Vehicle Security inspection, and be the important leverage of motor vehicle safe drive, the quality of braking ability directly affects traffic safety.The evaluation index of braking ability mainly comprises brake efficiency, brake efficiency constancy and brake direction steady three aspects, and whether the brake efficiency being examination and assess motor vehicle to the object of automobile braking service check in Vehicle Security inspection meets the requirement of standard GB/T 7258-2004 " motor vehicle safe and technical specification ".
At present, the inspection body's brake efficiency of many employings drum reaction type brake detection table to motor vehicle of Vehicle Security detects.Drum-type brake detection table mainly overlaps identical wheel braking Force meansurement by left and right two and control module forms, and often cover test and control module are made up of framework, cylinder group, drive unit, lifting device and measuring and controlling.When braking performance test, cylinder group is driven to rotate by drive motor, cylinder group drives tested vehicle wheel rotation again, when carrying out braking performance test, reviewer steps on brake pedal, reduce speed now under the moment of friction effect that wheel produces at detent rotation, at this moment produce by the tire periphery of motor-driven cylinder to wheel the moment of friction that a tangential forces produces to overcome detent, maintenance wheel is rotated further, simultaneously tire also produces an equivalent opposition to head roll, under moment of reaction effect, speed reduction unit rotates reverse direction towards cylinder and swings together with dynamometry lever, the electric signal that damping force is in proportion is converted thereof into by force cell, amplify finally by signal filtering, A/D analog to digital conversion, gather and store and result calculating, complete the test of braking ability.But when drum reaction braking checkout stand detects, automobile is motionless, be that drum having motor car wheel rotates, be therefore a kind of Static Detection, the brake condition in its stressing conditions and road driving has very big difference, and the result measured has certain deviation, and measuring accuracy is low.
Utility model content
The purpose of this utility model is the automobile brake test device providing a kind of measuring accuracy high.
In order to achieve the above object, the utility model provides a kind of automobile brake test device, comprise the signal processor for the treatment of the signal gathered, wherein, also comprise measuring unit and supply automobile to sail and roll away from the guide plate of measuring unit into, measuring unit comprises base plate, pressing plate, pulling force sensor and pressure transducer, base plate is provided with groove, described pressing plate is arranged in groove, and the upper surface of pressing plate is concordant with the upper surface of base plate, pressure transducer is fixed on the bottom surface of pressing plate, the lower end of pressure transducer is provided with roller, pulling force sensor is all connected with signal processor with pressure transducer, the two ends that guide plate is connected to base plate are connected with described guide plate.
Principle of the present utility model and beneficial effect are:
During braking performance test, automobile sails measuring unit into from guide plate, when automobile complete sail measuring unit into time, driver suddenly steps on brake pedal, and automobile, under the effect of inertia, has the trend continuing to move forward.According to Newton third law, now wheel can apply one and damping force equal and opposite in direction, direction opposite effect power on pressing plate, makes pressing plate along the reverse displacement of vehicle traveling direction, drags pulling force sensor, pulling force sensor then passes the signal along to signal processor, obtains the data measured.In addition, pressure transducer also can sense that automobile is sailing measuring unit into the whole pressure change of automobile after stepping on brake pedal to pressing plate, and passes the signal along to signal processor, thus obtains the data measured, the general external printer of signal processor, directly prints.
Pressing plate is arranged in groove, and the upper surface of pressing plate is concordant with the upper surface of base plate, when automobile sails on pressing plate, travels steadily, can reduce the vibration of automobile significantly.Pressure transducer is fixed on the bottom surface of pressing plate, is sailing measuring unit into the whole pressure change of automobile after stepping on brake pedal to pressing plate for responding to automobile.The lower end of pressure transducer is provided with roller, and roller plays support automobile on the one hand, on the other hand, can reduce friction force when pressing plate moves, and increases measuring accuracy.Guide plate is connected to the two ends of base plate, when automobile travels on guide plate, can be used for regulating the speed, and sails in measuring unit when the speed of a motor vehicle is adjusted to 5-10 km/h again.On the one hand, the size of measuring unit can be done larger, is enough to pass through for whole automobile; On the other hand, that also measuring unit can be done is less, and two measurement units are arranged in juxtaposition, and pass through for automobile.
Compared with traditional drum reaction braking checkout stand, this programme simulates automobile more close to normal situation about travelling, and can reflect that vehicle damping force and automobile in braking procedure, to the change of platen pressure, are measured accurately high, better effects if really.
Further, measuring unit both sides are also provided with the infra-red alarm for reminding braking opportunity.When infra-red alarm detects that automobile sails measuring unit completely into, alarm is sounded, and reminds driver to need suddenly to step on brake pedal.
Further, the upper surface of pressing plate, base plate and guide plate is provided with scab plate, and scab plate can increase the friction factor of pressing plate, base plate and guide plate, ensures also can not skid at the wet weather automobile on such as rainy day, can carry out proper testing.
Further, scab plate is silicon carbide layer, stainless steel stratum reticulare and the silicon carbide layer arranged from the bottom to top.Stainless steel stratum reticulare is for reinforcing silicon carbide layer, and silicon carbide layer effectively can increase the friction factor of pressing plate, base plate and guide plate.
Further, also comprise the display for showing testing result, display is connected on signal processor.By the Signal aspects handled well over the display, measurement result is more directly perceived for signal processor.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is the structural representation of the embodiment of the utility model automobile brake test device;
Fig. 2 is the cut-open view of measuring unit in the embodiment of the utility model automobile brake test device.
Embodiment
Reference numeral during accompanying drawing illustrates is: guide plate 1, measuring unit 2, base plate 200, pressing plate 201, pressure transducer 202, roller 203, pulling force sensor 204, wheel 3.
As Fig. 1 the present embodiment provides a kind of automobile brake test device, comprise the signal processor of the signal for the treatment of collection, guide plate 1 and measuring unit 2.The two ends of measuring unit 2 are equipped with guide plate 1, and guide plate 1 is inclined-plane away from one end of measuring unit 2, and the spacing between two measuring units 2 is less than the spacing between automobile two front vehicle wheel, and the width of measuring unit 2 is greater than the width of automotive wheel.The outside of measuring unit 2 is also provided with infra-red alarm, and when infra-red alarm detects that automobile sails measuring unit completely into, alarm is sounded, and reminds driver to need suddenly to step on brake pedal.
As shown in Figure 2, measuring unit 2 comprises base plate 200, pressing plate 201, pulling force sensor 204 and pressure transducer 202, base plate 200 is provided with groove, pressing plate 201 is arranged in groove, and the upper surface of pressing plate 201 is concordant with the upper surface of base plate 200, pressure transducer 202 is fixed on the bottom surface of pressing plate 201, roller 203 is provided with between pressure transducer 202 and groove, pulling force sensor 204 is all connected with signal processor with pressure transducer 202, signal processor is connected with display, for display measurement result.The quantity of guide plate 1 is 4, is connected to the two ends of two base plates 200.
In addition, the upper surface of pressing plate 201, base plate 200 and guide plate 1 is all processed with scab plate, for silicon carbide layer, stainless steel stratum reticulare and the silicon carbide layer arranged from the bottom to top, the job operation of scab plate is: the first step, the surface of pressing plate 201, base plate 200 and guide plate 1 is coated with last layer emery, and by bonding agent, emery is fixed; Second step, gets a stainless (steel) wire and is placed on the diamond fixed; 3rd step, then get a stainless (steel) wire, be placed on a stainless (steel) wire, by this stainless (steel) wire half-twist after overlapping with it; 4th step, stainless (steel) wire is put into emery, and is fixed by emery by bonding agent; 5th step, prune away unnecessary stainless (steel) wire.
During concrete use, open this automobile brake test device, automobile sails in measuring unit 2 along guide plate 1 by driver, and the speed of automobile is adjusted to 5-10km/h by guide plate 1, and when automobile sails pressing plate 201 completely into, alarm is sounded.Now, driver suddenly steps on brake pedal, and pressure transducer 202 and pulling force sensor 204 can by the signal transmission that detects in signal processors, and test result then shows over the display.
Above-described is only preferred implementation of the present utility model; should be understood that; for a person skilled in the art; under the prerequisite not departing from the utility model structure; some distortion and improvement can also be made; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.
Claims (5)
1. an automobile brake test device, comprise the signal processor for the treatment of the signal gathered, it is characterized in that, also comprise measuring unit and supply automobile to sail and roll away from the guide plate of measuring unit into, measuring unit comprises base plate, pressing plate, pulling force sensor and pressure transducer, base plate is provided with groove, described pressing plate is arranged in groove, and the upper surface of pressing plate is concordant with the upper surface of base plate, pressure transducer is fixed on the bottom surface of pressing plate, the lower end of pressure transducer is provided with roller, pulling force sensor is all connected with signal processor with pressure transducer, the two ends of base plate are connected with described guide plate.
2. automobile brake test device as claimed in claim 1, it is characterized in that, described measuring unit both sides are also provided with the infra-red alarm for reminding braking opportunity.
3. automobile brake test device as claimed in claim 1 or 2, it is characterized in that, the upper surface of pressing plate, base plate and guide plate is provided with scab plate.
4. automobile brake test device as claimed in claim 3, it is characterized in that, described scab plate is silicon carbide layer, stainless steel stratum reticulare and the silicon carbide layer arranged from the bottom to top.
5. automobile brake test device as claimed in claim 1, it is characterized in that, also comprise the display for showing testing result, display is connected on signal processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520367010.9U CN204679285U (en) | 2015-06-01 | 2015-06-01 | Automobile brake test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520367010.9U CN204679285U (en) | 2015-06-01 | 2015-06-01 | Automobile brake test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204679285U true CN204679285U (en) | 2015-09-30 |
Family
ID=54178968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520367010.9U Expired - Fee Related CN204679285U (en) | 2015-06-01 | 2015-06-01 | Automobile brake test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204679285U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114705344A (en) * | 2022-03-29 | 2022-07-05 | 东风汽车集团股份有限公司 | Passenger car parking system operating force measurement test device and method |
-
2015
- 2015-06-01 CN CN201520367010.9U patent/CN204679285U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114705344A (en) * | 2022-03-29 | 2022-07-05 | 东风汽车集团股份有限公司 | Passenger car parking system operating force measurement test device and method |
| CN114705344B (en) * | 2022-03-29 | 2023-12-26 | 东风汽车集团股份有限公司 | Device and method for measuring and testing operation force of parking system of passenger car |
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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: 20150930 Termination date: 20170601 |