CN103105299A - Axle weight and brake and vehicle speed combined test bench - Google Patents
Axle weight and brake and vehicle speed combined test bench Download PDFInfo
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- CN103105299A CN103105299A CN2013100553626A CN201310055362A CN103105299A CN 103105299 A CN103105299 A CN 103105299A CN 2013100553626 A CN2013100553626 A CN 2013100553626A CN 201310055362 A CN201310055362 A CN 201310055362A CN 103105299 A CN103105299 A CN 103105299A
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Abstract
The invention discloses a small-sized integrated axle weight and brake and vehicle speed combined test bench. The axle weight and brake and vehicle speed combined test bench is composed of a test platform foundation frame, a left test bench framework, a right test bench framework and two testing systems, wherein the left test bench framework and the right test bench framework are connected with the test platform foundation frame through pressure sensors respectively mounted at four corners of the left test bench framework and four corners of the right test bench framework, the testing systems are mounted on the test bench frameworks, and each testing system is composed by a rotary drum, a lifting mechanism, a force measuring device, a rotation speed measuring device and a third rotary drum in a combination mode. According to the axle weight and brake and vehicle speed combined test bench, a brake test bench, a speedometer test bench and two sets of rotary drums of an axle load meter are combined to one group, a driving motor and a speed reducer are arranged in the rotary drums, due to the integrated design, the structure is simplified, the occupied space is reduced, cost is lowered, the space requirement for installation of other devices can be met, and a test vehicle is enabled to finish all testing tasks according to national standard requirements.
Description
Technical field
The present invention relates to the equipment of automobile safety testing, in particular, relates to the equipment of axle weight, braking, speed of a motor vehicle compound detection.
Background technology
Along with the continuous renewal of organizational equipment and improving constantly of mechanization degree, army's vehicle mounting number progressively increases, and guarantees at ordinary times and one of good important method of vehicle condition in wartime, realizes exactly the regular detection of vehicle.Detect if vehicle is not carried out security performance, check vehicles potential faults and in time eliminating just traffic hazard may occur.Army's vehicle has singularity, except will completing daily life at ordinary times and logistics support, also undertake means of transport and the task of weapon platform in wartime, this just has higher requirement to the security performance of vehicle, therefore guarantees that vehicle has very high serviceability rate very important.
Be used for vehicle safety detection major equipment and facility fixed test line and two kinds of forms of mobile detection line (inspection vehicle) are arranged.Because the fixed test line is arranged in the measuring station factory building, the distribution range of tested vehicle is usually comparatively suitable in 20 kilometers of factory building radiuses, as exceed this scope, be that economic benefit or social benefit bring negative effect all can for detected vehicle affiliated unit.Military vehicle distributes the singularity of relatively disperseing, most of vehicle is distant to shunting of fixed test station detection, no matter from economy, security, or the aspects such as confidentiality are considered all to be not suitable for, therefore the preferred plan of army's vehicle detection equipment is to be equipped with the automobile inspection vehicle, guarantees to complete the Detection task of checking in vehicle year in work.
The kind of automobile inspection vehicle product is more both at home and abroad at present, differs from one another.By the analysis-by-synthesis to domestic and international inspection vehicle, find listed various inspection vehicles in the market, all be not suitable for army's vehicle detection work, develop the automobile inspection vehicle that the use of a kind of suitable army, strong adaptability, test item meet national standard very necessary for this reason.Its core is that main checkout equipment (brake tester, the heavy testing table of axle, speedometer tester) is carried out miniaturization, Integration Design.
Summary of the invention
Technical matters to be solved by this invention is, a kind of miniaturization, integrated axle weight, braking, speed of a motor vehicle compound detection platform are provided.
Axle weight of the present invention, braking, speed of a motor vehicle compound detection platform are comprised of following three parts: detection platform foundation frame, left and right monitor station framework and two cover detection systems;
Left and right monitor station framework is connected with the detection platform foundation frame by the pressure transducer that is arranged on respectively four jiaos, detection system is installed on the monitor station framework, and described detection system is comprised of two compound cylinder, lifting mechanism, device for measuring force, rotation-speed measuring device and the 3rd cylinders made of cover;
The compound cylinder of making comprises front roll and rear moving cylinder, built-in drive motor, reductor and the clutch coupling that connects successively of front roll, and clutch coupling connects front roll;
Lifting mechanism is controlled the fluid pressure drive device driving tray by hydraulic control valve, and pallet is between front roll and back roll; Force measuring machine is made of the dynamometry lever that connects the power sensor, and described dynamometry lever is installed on front roll;
Tachometric survey mechanism is comprised of the fluted disc and the speed probe that are installed on arbitrary cylinder one end;
The 3rd cylinder is between front roll and pallet, and at the 3rd cylinder axle head equipped with non-contact speed probe, the 3rd drum shaft is installed on the swing arm upper end that is provided with axis of swing, and the swing arm lower end is connected and fixed on the spring of detection platform foundation frame;
Detection platform foundation frame bottom is the rubber antiskid pad fixedly.
The present invention has following beneficial effect:
1. collection is braked, axle is heavy and the compound detection platform of speedometer " trinity "
Testing table of the present invention is integrated into a cover with two cover cylinders of brake tester, speedometer tester and axle load meter, drive motor, speed reduction unit are placed in cylinder, this integrated design, simplify the structure, reduced space hold, reduced cost, and guaranteed the space requirement that miscellaneous equipment is installed, made inspection vehicle can complete whole Detection tasks that GB requires.
2. install the 3rd cylinder additional.
Install the 3rd cylinder additional between cylinder is detected in front and back, the corresponding electric signal that the brake tester control device is sent according to the 3rd drum rotation speed sensor stops operating the brake tester drive motor in good time, in time detects data, prevents the cylinder tested doughnut that frays.
3. install anti-skidding blob of viscose and anti-skidding blob of viscose stationary installation additional bottom platform, the sidesway of platform when detecting to overcome.
The present invention can reserve the power takeoff interface at variator installs power takeoff additional, driven the shaft belt type generator that is installed on automobile chassis by transmission shaft, pass through power distribution control system, for checkout equipment provides work required power supply, direct built-in driving, need not external power supply, increased the mobility of equipment.
The present invention has realized detection platform weight saving, and podium level reduces.This compound detection platform is assemblied on automotive safety environmental protection tests car, it is the major equipment of automobile safety testing in army's vehicle management work, can complete the compound detection work of truck wheel weight, braking, three projects of the speed of a motor vehicle, the design of its built-in driving, make monitor station need not to order about and to organize work voluntarily by external force, be convenient to be placed in and motor-drivenly on moving detection vehicle to any temporary detecting point, vehicle implemented coherent detection work.
Three testing tables such as existing brake tester, the heavy testing table of axle, speedometer tester are combined into one, driving and the measuring mechanism of transformation conventional brake testing table, designed a cover composite roller mechanism for this reason, driving mechanism is placed in cylinder inside, so both reduce height, alleviated again weight.Braking detects with the speedometer detection and shares four cylinders, and has designed a cover clutch, and is separate to guarantee that braking detection and speedometer detect.Simultaneously, at tetrapod and the detection platform base plate connecting place of this testing table, each installs a pressure transducer, realizes vehicle axle load measurement.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
The present invention is miniaturization, integrated checkout equipment and is easy to launch and the detection platform of removing receipts, and closed assembly is in detecting shelter, and shelter is by the carrier vehicle-mounted running.Detection platform is servo by driving mechanism, automatically passes in and out shelter and launches closed assembly; Detect shelter by from the lifting of lifting mechanism, realize the loading and unloading of shelter.During detection, shelter separates with the carrier car and is down to ground, and detection platform is stretched out and launches by detecting in shelter, forms detection line, and this moment, shelter was as detecting pulpit and rest room.Detect completely, remove receipts by launching reverse order.
Compound detection platform of the present invention is comprised of detection platform foundation frame, left and right monitor station framework and two cover detection systems; Left and right monitor station framework is connected with the detection platform foundation frame by the pressure transducer that is arranged on respectively four jiaos, detection system is installed on the monitor station framework, as shown in Figure 1, described detection system is comprised of compound cylinder (left and right two covers), lifting mechanism, device for measuring force, rotation-speed measuring device and the 3rd cylinder made of two covers; The pallet 1 of lifting mechanism, the 3rd cylinder 7, two cover is compound makes cylinder by right front roll assembly 2, right back roll assembly 3, drive motor 4, fixedly gear wheel 5, expansion tightening wheel assembly 6, flywheel assembly 8, brake assemblies 9, left front roll assembly 10, left back roll assembly 11 and intermediate shaft coupling 12 form.
The below is described further the present invention:
One, collection is braked, axle is heavy and the compound detection platform of speedometer " trinity "
Whole monitor station is connected with the detection platform foundation frame by four pressure transducers that are arranged on four jiaos of monitor stations, to realize the measurement of vehicle weight; Testing table mainly is comprised of structure left and right two parts the same, separate with function, and every part is comprised of compound cylinder, a cover lifting mechanism, device for measuring force, the rotation-speed measuring device etc. made of two covers.
The compound interior centrally-mounted driving of cylinder, reductor, the clutch coupling made.When detecting the automobile braking force performance, the effect of mainly bear the support drive wheel, transmitting damping force; Clutch coupling combination this moment, drive unit drives bottom roll and rotates, and drives vehicle wheel rotation; Simultaneously, during wheel braking, damping force is delivered to force measuring machine.When detecting speedometer, clutch separation, cylinder is mainly born the effect of support wheel.
Lifting machine mainly is comprised of fluid pressure drive device, pallet, hydraulic control valve etc.Before vehicle sails test into, lift pallet under the driving of drive unit, facilitate vehicle to enter.During detection, the hydraulic control valve unloading, pallet is down to minimum.Detect completely, before vehicle rolls away from, again lift pallet under the driving of drive unit, facilitate vehicle to roll away from.
Force measuring machine is comprised of dynamometry lever, power sensor, and when detecting wheel braking force, drive motor drives bottom roll and rotates, and drives vehicle wheel rotation; When the driver depresses brake pedal, during wheel braking, damping force will be delivered to the dynamometry lever by cylinder, and the dynamometry lever passes to sensor after this power is amplified, and sensor is transformed into electric signal with power again.
Tachometric survey mechanism is comprised of the fluted disc and the speed probe that are installed on a certain cylinder one end, and when speedometer detected, wheel drove cylinder and rotates, and fluted disc also rotates thereupon, and the number of teeth that speed probe just turns over fluted disc in the unit interval is transformed into pulse signal.
Owing to having designed braking, axle weight, speedometer compound detection platform, greatly reduce weight and the height of testing table, following table is the comparison of plane bench and composite testing platform, and the ratio in table is a certain parameter size of composite bench and the ratio of three kinds of separate unit testing equipment relevant parameters size sum totals.As seen, the composite bench height is only 0.14 of three kinds of separate unit testing equipment height sum totals, and weight is only 0.31 of three kinds of separate unit testing equipment weight sum totals.
The comparison of table plane bench and composite testing platform
For concrete each parts that further illustrate this compound detection platform form, the below does with detailed introduction from axle weight, braking and speed of a motor vehicle three aspects: respectively.
(1) axle is heavy
⒈ main application and the scope of application
Axle load test is divided into the left and right plate.Be used for measuring respectively each axle weight of motor vehicle.Just can draw motor vehicle axle load and complete vehicle quality by calculating the heavy sum of each wheel shaft; Usually the brake efficiency that vertical load is provided, is convenient to calculate each axle and car load for braking test board on detection line.Supported by four pressure transducers under each table top, high-precision sensor and high-precision A/D conversion chip improves the measurement accuracy rate greatly.
The ⒉ important technological parameters
3. primary structure mechanical part
Formed by monitor station framework and four cylinders.The pressure transducer that it is 1500kg that four jiaos of monitor station frameworks are equipped with respectively four testing ranges.
4. test philosophy
When the motor vehicle measured axis left Platform balance for shaft weight, the sensor in Platform balance for shaft weight just produced a voltage signal that heavily is directly proportional to axle, passes to computing machine and process after amplifying.
(2) braking
⒈ main application and the scope of application
The braking part of detecting of composite detecting platform is drum reaction type.This monitor station can be to the wheel maximum braking force of all kinds motor vehicle, drag, cross the item such as path difference tests.
The ⒉ important technological parameters
| Project | Parameter value |
| Maximum design axle load | 6000 Kg |
| The damping force measurement range | 0～30000 N |
| Measuring accuracy | ±3% |
| Diameter of cylinder | 170 mm |
| Drum length | 1000 mm |
| Centre of the drum's distance | 420 mm |
| Drum rotation speed | 6 r/min |
| Type of drive | Electricity drives |
| Voltage | 380 V |
| Power | 6 Kw |
The ⒊ primary structure
Fixedly anti-force type braking test board, overlap the compound mechanisms such as cylinder, force measuring machine, lifting of making by two and form.
The ⒋ test philosophy
See that the prompting of lamp screen is examined front wheels of motor-vehicles and reached brake platform, after putting in place, the motorized motions cylinder rotates, and cylinder drives is examined vehicle wheel rotation.When automobile braking, this moment wheel to cylinder apply one identical with the damping force size, with the acting force of cylinder opposite direction, this acting force is the braking counter-force.This power acts on force cell by sway brace, makes sensor produce a voltage signal that is directly proportional to damping force, passes to computing machine, thereby consists of a complete braking forces measuring process.
(3) speed of a motor vehicle
1. main application and the scope of application
Rotated by self head roll when automobile detects and detect, can be used to detect the accuracy of the following autometasomatism of 6T.
2. important technological parameters
| Project | Parameter value |
| Maximum design axle load | 6000 Kg |
| Test specification | 0～60 Km/h |
| Accuracy of detection | ±1 % |
| Cylinder operation pressure | 0.8 MPa |
| Diameter of cylinder | 170 mm |
| Drum length | 1000 mm |
| Centre of the drum's distance | 420 mm |
3. primary structure
Its structure by two covers compoundly make cylinder, rotation-speed measuring device forms.The step-by-step counting mode that speed probe adopts tests the speed, and greatly improves rate accuracy; Cylinder detects through strict transient equilibrium, allows to run up.Rotated by self head roll when automobile detects and carry out.
4. test philosophy
The driving wheel of tested automobile is sailed between two cylinders, wheel drives cylinder slowly, accelerate evenly, when autometasomatism reaches 40km/h, presses sampling switch, be arranged on sensor between cylinder and support and convert the velocity amplitude of wheel reality to electric signal and pass to computing machine, process.
Two, install the 3rd cylinder additional.
Before and after the 3rd cylinder is arranged on, in the middle of moving cylinder, diameter is less, but both rotations can swing up and down again, make it remain on the extreme higher position by spring at ordinary times.At the 3rd cylinder axle head, be provided with non-contact type tachometric sensor.When tested wheel is placed on the cylinder of front and back, depresses the 3rd cylinder, and keep contacting reliably with wheel.In braking procedure, the drum having motor car wheel rotates, and the 3rd cylinder is also with vehicle wheel rotation, and the speed probe of its axle head sends tach signal to computing machine, calculates slip rate between wheel and cylinder.When slip rate reached certain value, computing machine sent instruction, measured damping force, controlled motor stalling.When detecting the speed of a motor vehicle, the 3rd cylinder separates automatically with wheel.
Three, install anti-skidding blob of viscose and anti-skidding blob of viscose stationary installation additional bottom the detection platform foundation frame, the sidesway of platform when detecting to overcome.
The rubber antiskid pad is adhesively fixed bottom the detection platform foundation frame.During detection, the rubber antiskid pad reliably contacts with ground, and enough adhesion is provided, and prevents that platform from sliding.
The slipmat material is selected code name 1613 General Purpose Rubber plates, and this offset plate has medium hardness, and elasticity, wearing quality and oil resistance are preferably arranged, and applicable pressure is higher, operating temperature range-35 ℃～+ 60 ℃.
Claims (1)
1. an axle weight, braking, speed of a motor vehicle compound detection platform, is characterized in that, described compound detection platform is comprised of detection platform foundation frame, left and right monitor station framework and two cover detection systems; Left and right monitor station framework is connected with the detection platform foundation frame by the pressure transducer that is arranged on respectively four jiaos, detection system is installed on the monitor station framework, and described detection system is comprised of two compound cylinder, lifting mechanism, device for measuring force, rotation-speed measuring device and the 3rd cylinders made of cover;
The compound cylinder of making comprises front roll and rear moving cylinder, built-in drive motor, reductor and the clutch coupling that connects successively of front roll, and clutch coupling connects front roll;
Lifting mechanism is controlled the fluid pressure drive device driving tray by hydraulic control valve, and pallet is between front roll and back roll; Force measuring machine is made of the dynamometry lever that connects the power sensor, and described dynamometry lever is installed on front roll;
Tachometric survey mechanism is comprised of the fluted disc and the speed probe that are installed on arbitrary cylinder one end;
The 3rd cylinder is between front roll and pallet, and at the 3rd cylinder axle head equipped with non-contact speed probe, the 3rd drum shaft is installed on the swing arm upper end that is provided with axis of swing, and the swing arm lower end is connected and fixed on the spring of detection platform foundation frame;
Detection platform foundation frame bottom is the rubber antiskid pad fixedly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100553626A CN103105299A (en) | 2013-02-21 | 2013-02-21 | Axle weight and brake and vehicle speed combined test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100553626A CN103105299A (en) | 2013-02-21 | 2013-02-21 | Axle weight and brake and vehicle speed combined test bench |
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| Publication Number | Publication Date |
|---|---|
| CN103105299A true CN103105299A (en) | 2013-05-15 |
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| CN2013100553626A Pending CN103105299A (en) | 2013-02-21 | 2013-02-21 | Axle weight and brake and vehicle speed combined test bench |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614556A (en) * | 2015-02-04 | 2015-05-13 | 湖北三江航天万山特种车辆有限公司 | Table type speed calibration device for multi-axle driving vehicle |
| CN104833518A (en) * | 2014-12-19 | 2015-08-12 | 北汽福田汽车股份有限公司 | Vehicle brake test device and method |
| CN105745520A (en) * | 2013-08-05 | 2016-07-06 | 斯纳珀Nt有限公司 | A system for measuring the braking force of a vehicle |
| CN109782026A (en) * | 2019-03-11 | 2019-05-21 | 上驰汽车有限公司 | Electric motor coach speedmeter tester |
| PL425073A1 (en) * | 2018-03-28 | 2019-10-07 | Megaterm Plus Spółka Z Ograniczoną Odpowiedzialnością | Weighing platform with the framework lattice structure |
| CN111579253A (en) * | 2020-06-04 | 2020-08-25 | 智慧计量检测(海南)有限公司 | Motor vehicle security check line on-line measuring device |
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| CN203163994U (en) * | 2013-02-21 | 2013-08-28 | 中国人民解放军军事交通学院 | Composite detection stand for performances of axle load, braking and speed |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105745520A (en) * | 2013-08-05 | 2016-07-06 | 斯纳珀Nt有限公司 | A system for measuring the braking force of a vehicle |
| CN104833518A (en) * | 2014-12-19 | 2015-08-12 | 北汽福田汽车股份有限公司 | Vehicle brake test device and method |
| CN104614556A (en) * | 2015-02-04 | 2015-05-13 | 湖北三江航天万山特种车辆有限公司 | Table type speed calibration device for multi-axle driving vehicle |
| CN104614556B (en) * | 2015-02-04 | 2018-09-11 | 湖北三江航天万山特种车辆有限公司 | A kind of desk-top calibrating installation of the speed of Multi Axle Drive Vehicle |
| PL425073A1 (en) * | 2018-03-28 | 2019-10-07 | Megaterm Plus Spółka Z Ograniczoną Odpowiedzialnością | Weighing platform with the framework lattice structure |
| CN109782026A (en) * | 2019-03-11 | 2019-05-21 | 上驰汽车有限公司 | Electric motor coach speedmeter tester |
| CN109782026B (en) * | 2019-03-11 | 2024-06-04 | 上驰汽车有限公司 | Electric bus speedometer detection table |
| CN111579253A (en) * | 2020-06-04 | 2020-08-25 | 智慧计量检测(海南)有限公司 | Motor vehicle security check line on-line measuring device |
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Application publication date: 20130515 |