CN107677485A - A kind of static single-wheel brake force special inspecting equipment - Google Patents
A kind of static single-wheel brake force special inspecting equipment Download PDFInfo
- Publication number
- CN107677485A CN107677485A CN201710835121.1A CN201710835121A CN107677485A CN 107677485 A CN107677485 A CN 107677485A CN 201710835121 A CN201710835121 A CN 201710835121A CN 107677485 A CN107677485 A CN 107677485A
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- CN
- China
- Prior art keywords
- positioning
- dynamometry
- vehicle
- fixing
- brake
- 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.)
- Pending
Links
- 230000003068 static effect Effects 0.000 title claims abstract description 15
- 238000009434 installation Methods 0.000 claims abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 11
- 206010039203 Road traffic accident Diseases 0.000 abstract description 8
- 238000001514 detection method Methods 0.000 abstract description 8
- 238000011156 evaluation Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000011157 data evaluation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000010338 mechanical breakdown Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/28—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for testing brakes
Abstract
A kind of static single-wheel brake force special inspecting equipment, including positioning disk (1), dynamometry lever (2), sensor jointing (3) and the positioning and locking bolt (4) for fixing dynamometry jack；Dynamometry lever (2) one end installation is used for fixing the positioning disk (1) of tested vehicle wheel, and opposite side installs the positioning and locking bolt (4) for fixing dynamometry jack；Sensor jointing (3), and the outer tie-in force snesor of sensor jointing (3) are set at positioning and locking bolt (4) place.The present invention is according to the evaluation criterion using static brake brake force measurement data evaluation braking performance of vehicle, pass through the collection analysis to tie-in force snesor test data outside the present invention, the detection to vehicle brake brake force progress STATIC QUANTITATIVE can be achieved, to reach the purpose that whether qualified damaged vehicle braking ability is in identification traffic accident.
Description
Technical field
The invention belongs to a kind of vehicle detection apparatus, more particularly to a kind of static single-wheel brake force special inspecting equipment should
Equipment is used to detect the maximum of wheel of vehicle brake force and detected to losing driveability vehicle.
Background technology
At present, in judicial expertise industry, the traffic accident damaged vehicle for losing driveability, the mirror of its braking ability
The fixed method that can only be typically confined to Visual Ispection is qualitatively judged, and qualification result is difficult to convincing.Handed over according to the Ministry of Public Security
The authoritative statistics of pipe office shows, 2010, the whole nation because automobile braking failure, turn to failure, the mechanical breakdown such as blow out is total to
Cause traffic accident 10608 to rise, cause 5114 people dead, 12646 people are injured.And in the mechanical breakdown of various vehicles, braking
Failure occupies at a relatively high ratio.Therefore the technical appraisement of vehicle safety technical performance especially vehicle braking performances is whole
It is particularly important in motor vehicle class judicial expertise activity, while establish science, objective, accurate traffic accident damaged vehicle braking
Can identification technology method, formulate corresponding technological document, with the detection means of quantification, special detecting instrument equipment carry out by
Detection, the appraisal of vehicle braking system are damaged, is only the developing direction of traffic accident damaged vehicle judicial expertise technology.
The content of the invention
Accident vehicle for losing driveability does not possess road test, the technical conditions of Platform test, and the present invention is according to profit
The evaluation criterion of braking performance of vehicle is evaluated with static brake brake force measurement data, by connecting force-measuring sensing outside the present invention
The collection analysis of device test data, it can be achieved to carry out vehicle brake brake force the detection of STATIC QUANTITATIVE, handed over reaching identification
The whether qualified purpose of damaged vehicle braking ability in interpreter's event.
In order to realize above-mentioned task, the present invention, which adopts the following technical scheme that, to be achieved：
A kind of static single-wheel brake force special inspecting equipment, including positioning disk (1), dynamometry lever (2), sensor connect
Head (3) and the positioning and locking bolt (4) for fixing dynamometry jack；Dynamometry lever (2) one end installation is used for fixing quilt
The positioning disk (1) of wheel of vehicle is examined, opposite side installs the positioning and locking bolt (4) for fixing dynamometry jack；In positioning lock
Tight bolt (4) place sets sensor jointing (3), and the outer tie-in force snesor of sensor jointing (3).
According to outer tie-in force snesor institute gathered data, (the active force f) of dynamometry jack calculates brake most to the present invention
Big brake force F, reach the purpose that whether qualified damaged vehicle braking ability is in identification traffic accident.
By being detected to the traffic accident damaged vehicle brake braking force for losing driveability, k can determine the present invention
Quantization judges the braking ability of tested vehicle.Pass through single-wheel brake force method of inspection and drum reaction braking checkout stand test result
After comparative analysis, single-wheel brake force method of inspection is demonstrated due to not influenceed by adhesive force, and the wheel braking force that it is detected is more accurate
Really, repeatability is stronger, is a kind of effective method of inspection for judicial expertise.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is Fig. 1 top view.
Fig. 3 is detection device force analysis figure of the present invention.
Fig. 4 is the static front axle brake graph of relation that the present invention tests.
Fig. 5 is that the static rear axle that the present invention tests brakes graph of relation.
Embodiment
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in figure 1, the present embodiment provides a kind of static single-wheel brake force special inspecting equipment, including positioning disk (1), survey
Power lever (2), sensor jointing (3) and the positioning and locking bolt (4) for fixing dynamometry jack.Dynamometry lever (2)
One end sets positioning disk (1), and for fixing the wheel of tested vehicle, dynamometry lever (2) opposite side sets positioning and locking bolt
(4), for fixing dynamometry jack；At positioning and locking bolt (4) place, sensor jointing (3) is set；Sensor connects
Head (3) outer tie-in force snesor.During detection, positioning disk (1) and the wheel phase of tested vehicle that dynamometry lever (2) one end is set
It is fixed, brake pedal, the dynamometry jack for acting on and being fixed on dynamometry lever (2) is pressed, until the car of tested vehicle
Untill wheel rotates, record acts on the active force f of dynamometry jack.
During detection, dynamometry lever (2) is fixed on the wheel of tested vehicle using positioning disk (1), brake pedal,
The dynamometry jack for acting on dynamometry lever (2) end is pressed, untill the vehicle wheel rotation of tested vehicle, record acts on thick stick
The active force f of the dynamometry jack of boom end.
The brake maximum braking force F measured is calculated as follows：
The application point of L-lever end dynamometry jack takes 1.2m to the distance of axis wheel.
R-tested vehicle rolling radius, takes 0.28m.
The actual test process of single-wheel brake force special inspecting equipment in the present embodiment is as follows：
The static test incipient stage, vehicle suspension system is fixed with fixing device first, prevents bearing spring pressure
Epitome rings result of the test.In experiment, since braking oil pressure is 0mPa, increase 0.5mPa (maximum increases to 11mPa) every time, point
Other meter calculates the brake maximum braking force F of each secondary wheel.Tested by being repeated several times, you can draw four wheel brakings
Relation curve Fig. 4 and Fig. 5 of device brake force and brake-pipe pressure.
As can be seen from Figure 4, during static test, the left and right wheel drag brake force of front axle is nearly identical, with braking
Loine pressure is proportional, and this shows that left and right wheel drag adjustment is reasonable, the two brake-force balance.As can be seen from Figure 5,
Rear axle it is left and right wheel both brake braking forces curve have obvious deviation, show system left and right wheel load distribution on or brake
Problem or defect be present in the adjustment of gap, while show that the present invention can also detect the imbalance of the left and right wheel brake force of automobile,
And left and right wheels brake force imbalance is to cause Vehicle Driving Wandering or break away so as to trigger the main reason of corresponding traffic accident, this is being handed over
It is an important identification content in interpreter's event judicial expertise.
Claims (1)
- A kind of 1. static single-wheel brake force special inspecting equipment, it is characterised in that：Including positioning disk (1), dynamometry lever (2), pass Sensor jointing (3) and the positioning and locking bolt (4) for fixing dynamometry jack；Dynamometry lever (2) one end installation For fixing the positioning disk of tested vehicle wheel (1), opposite side installs the positioning and locking bolt for fixing dynamometry jack (4)；Sensor jointing (3) is set at positioning and locking bolt (4) place, and connects force-measuring sensing outside sensor jointing (3) Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710835121.1A CN107677485A (en) | 2017-09-15 | 2017-09-15 | A kind of static single-wheel brake force special inspecting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710835121.1A CN107677485A (en) | 2017-09-15 | 2017-09-15 | A kind of static single-wheel brake force special inspecting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107677485A true CN107677485A (en) | 2018-02-09 |
Family
ID=61135904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710835121.1A Pending CN107677485A (en) | 2017-09-15 | 2017-09-15 | A kind of static single-wheel brake force special inspecting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107677485A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0197828A (en) * | 1987-10-09 | 1989-04-17 | Toyota Motor Corp | Automatic measuring apparatus of braking force |
| RU2299141C1 (en) * | 2005-12-21 | 2007-05-20 | Владимир Николаевич Рыбка | Method of and device for checking vehicle brake systems |
| CN103308236A (en) * | 2013-05-28 | 2013-09-18 | 吉林大学 | Wheel constraining device for detecting braking force of automobile rack |
| CN104316329A (en) * | 2014-08-29 | 2015-01-28 | 中国汽车技术研究中心 | Apparatus for detecting braking performance of damaged vehicle |
| CN204128832U (en) * | 2014-08-29 | 2015-01-28 | 中国汽车技术研究中心 | Damaged vehicle braking performance detector |
| CN204705426U (en) * | 2015-02-15 | 2015-10-14 | 广东科学技术职业学院 | The device of detection accident automotive brake braking moment |
| CN207610861U (en) * | 2017-09-15 | 2018-07-13 | 天津职业技术师范大学 | A kind of static state single-wheel brake force special inspecting equipment |
-
2017
- 2017-09-15 CN CN201710835121.1A patent/CN107677485A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0197828A (en) * | 1987-10-09 | 1989-04-17 | Toyota Motor Corp | Automatic measuring apparatus of braking force |
| RU2299141C1 (en) * | 2005-12-21 | 2007-05-20 | Владимир Николаевич Рыбка | Method of and device for checking vehicle brake systems |
| CN103308236A (en) * | 2013-05-28 | 2013-09-18 | 吉林大学 | Wheel constraining device for detecting braking force of automobile rack |
| CN104316329A (en) * | 2014-08-29 | 2015-01-28 | 中国汽车技术研究中心 | Apparatus for detecting braking performance of damaged vehicle |
| CN204128832U (en) * | 2014-08-29 | 2015-01-28 | 中国汽车技术研究中心 | Damaged vehicle braking performance detector |
| CN204705426U (en) * | 2015-02-15 | 2015-10-14 | 广东科学技术职业学院 | The device of detection accident automotive brake braking moment |
| CN207610861U (en) * | 2017-09-15 | 2018-07-13 | 天津职业技术师范大学 | A kind of static state single-wheel brake force special inspecting equipment |
Non-Patent Citations (1)
| Title |
|---|
| 赵洋等: "制动器制动力静态测试仪自紧式夹紧装置的设计", 《现代农业装备》, no. 11, pages 47 - 50 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180209 |