CN2117601U - Automobile brake tester - Google Patents
Automobile brake tester Download PDFInfo
- Publication number
- CN2117601U CN2117601U CN 91229587 CN91229587U CN2117601U CN 2117601 U CN2117601 U CN 2117601U CN 91229587 CN91229587 CN 91229587 CN 91229587 U CN91229587 U CN 91229587U CN 2117601 U CN2117601 U CN 2117601U
- Authority
- CN
- China
- Prior art keywords
- brake
- sensor
- shoe
- wheel
- vehicle
- Prior art date
- 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.)
- Granted
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- Force Measurement Appropriate To Specific Purposes (AREA)
- Braking Arrangements (AREA)
Abstract
The utility model discloses a vehicle brake tester, comprising piezoelectric signal sensors 18 and 19, an amplifier 12 and a display unit 11, wherein, the piezoelectric signal sensors 18 and 19 are flaky and arranged between the rake pads 22, 23 and the brake shoes 20, 21; the two pressure bearing surfaces of the piezoelectric signal sensors are connected with the amplifier 12 and the display unit 11 by signal lines. The utility model has the advantages that both the static brake performance and the dynamic brake performance of a vehicle can be measured; particularly, the brake pressures of wheels can be directly measured when the vehicle is static; the best braking effect of the vehicle can be kept; the safety can be enhanced when the vehicle is running.
Description
The utility model belongs to the dynamic and static detection technique of automotive brake braking quality, particularly can measure each braking quality of taking turns of automobile when automobile does not move, belong to the B60T17/22 class.
Detecting at present the brake means of automobile, mainly is to adopt kinetic friction to observe, allow automobilism get up after, step on foot brake and bring to a halt, observe the abrasion mark on tire and road surface.This method has following shortcoming: the duty when before brake, not understanding the foot brake brake system, in case brake failure very easily has an accident; Observe braking quality by abrasion mark, very big to the loss of tire; Get rid of difficulty of this type of failure ratio at correction automobile brake sideslip (automobile banking during braking).
The purpose of this utility model is in order to overcome above-mentioned shortcoming, and it is dynamic to design a kind of both energy measurements, and the device of the static braking quality of energy measurement especially when automobile is in static state, can directly be measured the brake pressure numerical value of each wheel again, thereby grasps braking quality.
To achieve the above object, the utility model adopts a kind of device of measured automobiles skidding performance, it comprises piezoelectric signal sensor, amplifier and display device, this voltage signal sensor is laminar, and be installed between brake strip and the brake-shoe, its two sides connection signal line that bears pressure links to each other with display device with amplifier.
The numerical value of brake pressure shows, by keyswitch control, can demonstrate the brake pressure state of each wheel of front, rear, left and right respectively.And can adjust brake pressure, equalization of pressure when reaching each wheel brake.
Signal wire is drawn on the two sides of piezoelectric sensor, the one side be by brake-shoe as ground wire, the connection lead of another side is drawn by the hollow riveting pipe of brake-shoe.
The utility model has the advantages that: by measuring the skidding performance, can make automobile keep best braking effect, effectively raise the security of automobilism.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
The principle schematic of mounting means when Fig. 1 is the utility model testing automobile braking quality.
Fig. 2 is the utility model principle of work block scheme.
Fig. 3 is the structure section synoptic diagram of piezoelectric signal sensor extension line.
Fig. 4 is the braking quality synoptic diagram of testing automobile hydraulic brake system.
Among the above-mentioned figure:
Revolver brake sensor A display switch before 1;
Revolver brake sensor B display switch before 2;
3 front right wheel brake sensor A display switches;
4 front right wheel brake sensor B display switches;
5 back revolver brake sensor A display switches;
6 back revolver brake sensor B display switches;
7 rear right wheel brake sensor A display switches;
8 rear right wheel brake sensor B display switches;
The 9 digital fenestras that show;
10 power switches;
11 display device;
12 voltage amplifiers;
13 bundle conductors;
14 sensors A outerplanars connect signal wire;
15 sensors A inner planes connect signal wire;
16 sensor B inner planes connect signal wire;
17 sensor B outerplanars connect signal wire;
18 piezoelectric signal sensors A,
19 piezoelectric signal sensor B;
The brake-shoe B of 20 wheel drags;
The brake-shoe A of 21 wheel drags;
The friction disc B of 22 wheel drags;
The friction disc A of 23 wheel drags;
The tension spring of 24 wheel drags;
The wheel cylinder B of 25 wheel drags;
The wheel cylinder A of 26 wheel drags;
The brake drum of 27 wheel drags;
The revolving shaft of 28 brake-shoes;
29 pass the rivet pipe of brake-shoe;
The brake pedal of 30 hydraulic vehicle brake systems;
The master cylinder of 31 hydraulic vehicle brake systems;
The wheel cylinder of 32 hydraulic vehicle brake systems;
33 wheel drags;
The pipeline of 34 hydraulic vehicle brake systems.
By Fig. 1,2 as can be known, the device of measured automobiles skidding performance of the present utility model is made up of piezoelectric signal sensor 18,19 and voltage signal amplifier 12 and display device 11 etc. Piezoelectric signal sensor 18 and 19 in the form of sheets, be contained in respectively wheel drag 33 brake strip 22 and 23 and brake- shoe 20 and 21 between. Piezoelectric sensor 18 and 19 its inside and outside two workplaces link with signal wire 14,15 and 16,17 respectively.
Shown in Figure 3, as piezoelectric sensor 18, its " inner working face " is close to brake-shoe 21 is metallic conductor because of it, can draw with signal wire 15 as ground wire to join; Its " outer workplace " pastes mutually with the brake strip 23 of asbestos insulating material, and its signal wire of drawing 14 is to be realized by the flexible circuit conductor that passes the hollow riveting pipe 29 that is contained on the brake-shoe 21.
Compile the signal wire of bunchy and form bundle conductor 13, according to the voltage signal that comes from certain voltage signal sensor transmission, input amplifier 12 is through number conversion and operating control keyboard display switch 1 ... 8, can show that fenestra 9 reads the brake pressure value at institute pressure measurement electric transducer position by number.
Shown in Figure 4, be on four wheel drags 33 of hydraulic vehicle brake system, 8 piezoelectric sensors are installed altogether, each wheel is installed two, when stepping on brake pedal 30, by master cylinder 31 and brake piping 34 hydraulic coupling is passed to 4 wheel cylinders 32, pass through wheel cylinder 25 referring to Fig. 1,26, make brake- shoe 20,21 open extension spring 24, thereby compress brake strip 22,23 and press brake drum 27 around axle 28 rotations and expansion.Because 8 piezoelectric sensors between the institute brake strip that is installed in and the brake-shoe will be by 8 pairs of signal wires, the electrical signal transfer that pressure is converted to arrives voltage amplifier 12, can demonstrate respectively by selection telegraph key display switch 1 to 8:
Preceding revolver detent A portion brake assemblies brake pressure value;
Preceding revolver detent B portion brake assemblies brake pressure value;
Front right wheel detent A portion brake assemblies brake pressure value;
Front right wheel detent B portion brake assemblies brake pressure value;
Back revolver detent A portion brake assemblies brake pressure value;
Back revolver detent B portion brake assemblies brake pressure value;
Rear right wheel detent A portion brake assemblies brake pressure value;
Rear right wheel detent B portion brake assemblies brake pressure value.
Claims (3)
1, a kind of device of measured automobiles skidding performance, it comprises piezoelectricity letter sensor 18,19 amplifiers 12 and display device 11, it is characterized in that: this piezoelectric signal sensor 18,19 is for laminar, and be installed between wheel drag friction disc 22,23 and the brake-shoe 20,21, it bears the two sides connection signal line 14,15,16,17 of pressure and links to each other with display device 11 in amplifier 12.
2, the device of measured automobiles skidding performance according to claim 1 is characterized in that: the numerical value of its brake pressure shows, can be shown the brake pressure state of each wheel respectively by button display switch 1,2,3,4,5,6,7,8.
3, the device of measured automobiles skidding performance according to claim 1 is characterized in that: the two sides extension line of described piezoelectric sensor 18,19, one side pass through brake-shoe 2021 as ground wire; The another side lead-in wire is drawn by the hollow riveting pipe 29 on the brake-shoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91229587 CN2117601U (en) | 1991-12-03 | 1991-12-03 | Automobile brake tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91229587 CN2117601U (en) | 1991-12-03 | 1991-12-03 | Automobile brake tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2117601U true CN2117601U (en) | 1992-09-30 |
Family
ID=4935058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91229587 Granted CN2117601U (en) | 1991-12-03 | 1991-12-03 | Automobile brake tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2117601U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852665A (en) * | 2010-06-13 | 2010-10-06 | 重庆大学 | Method and system for testing brake pressure without dismantling rail transit brake system |
| CN104595398A (en) * | 2015-02-13 | 2015-05-06 | 合肥万向钱潮汽车零部件有限公司 | Tension detection assembly for brake assembly shoe |
| CN108168901A (en) * | 2017-12-13 | 2018-06-15 | 天津英创汇智汽车技术有限公司 | Vehicle brake side-slipping measuring method, apparatus and system |
| CN110514920A (en) * | 2019-07-16 | 2019-11-29 | 苏州西木机械有限公司 | Electronics parking brake detection device |
-
1991
- 1991-12-03 CN CN 91229587 patent/CN2117601U/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852665A (en) * | 2010-06-13 | 2010-10-06 | 重庆大学 | Method and system for testing brake pressure without dismantling rail transit brake system |
| CN101852665B (en) * | 2010-06-13 | 2011-10-05 | 重庆大学 | Method and system for testing brake pressure without dismantling rail transit brake system |
| CN104595398A (en) * | 2015-02-13 | 2015-05-06 | 合肥万向钱潮汽车零部件有限公司 | Tension detection assembly for brake assembly shoe |
| CN104595398B (en) * | 2015-02-13 | 2017-06-06 | 合肥万向钱潮汽车零部件有限公司 | Brake assembly shoes tension force detects assembly |
| CN108168901A (en) * | 2017-12-13 | 2018-06-15 | 天津英创汇智汽车技术有限公司 | Vehicle brake side-slipping measuring method, apparatus and system |
| CN110514920A (en) * | 2019-07-16 | 2019-11-29 | 苏州西木机械有限公司 | Electronics parking brake detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |