CN202903409U - Single shaft inertia type single roller detection test platform for trailer inertia brake system - Google Patents
Single shaft inertia type single roller detection test platform for trailer inertia brake system Download PDFInfo
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- CN202903409U CN202903409U CN2012204916282U CN201220491628U CN202903409U CN 202903409 U CN202903409 U CN 202903409U CN 2012204916282 U CN2012204916282 U CN 2012204916282U CN 201220491628 U CN201220491628 U CN 201220491628U CN 202903409 U CN202903409 U CN 202903409U
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Abstract
The utility model relates to a single shaft inertia type single roller detection test platform for a trailer inertia brake system, and the detection test platform comprises a frame type base, auxiliary devices, an indication and measurement and control system, an impact signal generation system and a detection system, the detection system comprises a roller transmission device, a drive device and a measuring device, the roller transmission device comprises rollers and a flywheel group, the rollers comprises single rollers independently arranged in a left and a right side, two ends of the roller are respectively supported on a bearing seat through a bearing, axial lines of the two rollers are on a same straight line, the rollers are in keyed joint with the flywheel group, and the roller transmission device is connected with the drive device. Beneficial effects are that the detection test platform is suitable for testing performance of the trailer brake system provided with the inertia brake system, and the detection test platform is also provided with detection function of a regular inertia brake test platform. Rotation portions (flywheel group, rollers) of the test platform can simulate rotational inertia similar to that of a to-be-tested vehicle in driving, so the method approaches a real usage condition, testing accuracy is high, and the test platform can carry out braking tests under any vehicle speed.
Description
Technical field
The utility model belongs to motor vehicle detector, and the single shaft inertia-type list cylinder that relates in particular to a kind of inertia braking system for trailer detects test platform.
Background technology
At present, detect at present the common method of brake system of car performance road examination check and bench teat check are arranged.Mainly be anti-force type brake platform and flat brake platform.The linear velocity of the cylinder surface of anti-force type twin-roll testing table is about 2.5km/h, belongs to Static Detection, and because its drum speed is low, the complexity that can not comprehensively react damping force in the braking procedure changes.Brake test process and the braking procedure of automobile when road travels on the flush floor type brake tester (speed of a motor vehicle is about 5km/h) are comparatively approaching, but poor repeatability and revision test bothers, floor area large, need the run-up track, be unfavorable for line production and uneasy congruent shortcoming when flush floor type brake tester exist to be surveyed, thus its use not as anti-force rolling brake testing platform extensive.In order to make test figure more accurate, especially " ABS " ABS (Anti-lock Braking System) performance is detected, realize implementing kinetic measurement, local research institution and colleges and universities often adopt the inertia braking testing table.Above-mentioned three kinds of testing tables mainly are for the trailer of automobile or employing hydraulic pressure or air-pressure brake, can't detect the trailer with inertial braking system.Conventional inertia braking testing table is that power drive cylinder and the flywheel group of motor car engine rotated together, when reaching the test speed of a motor vehicle, places neutral gear manually to touch on the brake in automobile and carries out brake hard.But the related trailer of this paper itself is unpowered, can't groups of drive rolls and the flywheel group rotate, and the trailer towing ring just can make trailer brake system generation effect after relying on the main car bump that draws during braking.
Conventional trailer adopts gas braking or hydraulic braking, touches on the brake by human pilot during braking, has realized main car and trailer are braked simultaneously.But the braking with the inertial braking system trailer that this paper is related, need the speed of trailer to be higher than the main car of traction, main like this car and trailer produce a velocity contrast, the bail of the main car bump trailer of traction, thereby make the bail compression, thereby make trailer brake system generation effect.Namely need compress the braking of the bail realization trailer of trailer with the trailer of inertial braking system.
The structure of inertia braking system for trailer is mainly by the bail compressing mechanism, the steel wire backguy, and brake pulling wire, detent forms.Principle of work: the braking procedure of inertial braking system is that in the truck combination driving process, after tractor was stepped on brake pedal, main car was braked, slowed down.Trailer still advances by original speed owing to inertia effect, the draw hook of main like this car produces impact to the bail of trailer, make the hydro-pneumatic spring in the bail compressed, thereby tension braking stay cord, after inertia impact braking sensing device and the transmission of transmission levers system, shoe brake is opened, and detent works, and trailer produces braking.There is at present a large amount of inertial braking system chassis of trailers using.The inspection of its security performance mainly is before use truck combination to be carried out the road inspection.The public technology that retrieves, according to the literature 1, Flick ma.Tests to Evaluate B and G Brake Torque Tester. U.S. government's Science Report (NTIS), PB97-108203; 2, utility model patent number for " the automobile brake perfrmance detection platform " 3 of ZL 03232856, invention utility application number is 200610061301.0 " a kind of vehicle-mounted motor vehicle performance detection method and device ".Whether being with automobile (or truck combination) braking ability of air pressure or hydraulic braking that above-mentioned technology detects be qualified, and this technology can't detect the braking system energy with the inertial braking system trailer.Bibliographical information 4. utility model patents number are ZL2009 2 0273810.9 " full trailor inertial braking system static detection device ", this technology is Static Detection, by hydraulic cylinder compressive traction ring, make brake system generation effect, thereby detect the moment that can turn a wheel.Its shortcoming be this technology take qualitative as main, it is less to detect moment, can't detect the moment size that trailer travels.And detected parameters is few, can't detect braking distance, braking time and braking deceleration.
The braking ability of articulated vehicle is more than the braking ability complexity of single car.The former is except braking force distribution comparatively the complexity, and in braking procedure, the interaction partners insensitivity between tractor and the trailer also has larger impact.During braking, if the trailer brake system performance is bad, can have a strong impact on car load brake efficiency and directional stability.
Braking ability detects the mandatory Interventions Requested that belong to the national security technical checking, respectively braking distance and braking deceleration etc. has been made concrete regulation with brake-force balance such as 7.13.1.1 and 7.14.1.2 bar among the GB7258-2004 " motor vehicle safe and technical specification ".Demand urgently in the industry developing and have the monitor station that can automatically detect the trailer braking protection valve performance, the driving safety that improves trailer is had vital role, can detect according to the test item of state compulsion standard the device with inertial braking system trailer braking protection valve performance.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and the single shaft inertia-type list cylinder that a kind of inertia braking system for trailer is provided detects test platform, but the process of tractor bump trailer during its simulating brake, make the brake system with the inertial braking system trailer produce braking, and can detect comprehensively, exactly the main braking technology performance of trailer under the various speed of a motor vehicle.
The utility model for achieving the above object, by the following technical solutions: a kind of single shaft inertia-type list cylinder of inertia braking system for trailer detects test platform, it is characterized in that: comprise the frame-type base, servicing unit, indication and TT﹠C system, impact signal produces system and detection system, described detection system comprises rotor drive, drive unit and measurement mechanism, described rotor drive is made of cylinder and flywheel group, described cylinder is by a left side, the right independent single cylinder that arranges consists of, a described left side, one end of the cylinder of right both sides is keyed jointing flywheel group respectively, described cylinder two ends are bearing on the bearing seat by bearing respectively, two cylinder axis are on the same straight line, and described rotor drive is connected with drive unit; Described servicing unit comprises haulage gear, vehicle frame stationary installation.
Described drive unit is made of motor, speed reduction unit and electromagnetic clutch, and the speed reduction unit of described drive unit is connected with cylinder and flywheel group by electromagnetic clutch.
Described measurement mechanism comprises speed measuring motor and photoelectric sensor, and described speed measuring motor and photoelectric sensor are installed in the end of cylinder keyed jointing flywheel group opposite end successively.
Described impact signal produces system and mainly consists of electrodynamic type impact signal generation system by motor, clutch coupling, gear, tooth bar and travel switch, described motor is connected with gear by clutch coupling, described wheel and rack engagement, described tooth bar two end spaceses are provided with travel switch.
Described impact signal produces system and mainly consists of pneumatic type impact signal generation system by source of the gas, air-path control system, gas circuit topworks and security system.
Described indication and TT﹠C system comprise data Collection ﹠ Processing System, control system and indication and printing equipment, and indication comprises computing machine and connected amplification filtering module, A/D modular converter, digital indicator and printer with printing equipment; Data Collection ﹠ Processing System comprises each sensor that is installed on the detection system, described computing machine respectively with detection system on each sensor be connected by interface, computing machine is to automatic data collection and the processing of various kinds of sensors.
Described vehicle frame stationary installation mainly is made of guide rail and clamp device, and described guide rail is fixed on the frame-type base, mobile link on clamp device and the guide rail, or be fixed on the guide rail.
Beneficial effect: the difference that this monitor station is distinguished other inertia-type roller test stands is, adopts motor-driven flywheel group and cylinder group to rotate, thereby drives the rotation of wheel of tested trailer, makes it reach the test speed of a motor vehicle.Impact signal produces the process of system's tractor bump trailer can simulating brake the time, the compressive traction ring, make trailer brake system generation effect, utilize the performance of detection system detection brake system, braking distance, retarded velocity and the braking time that can test separately the left and right wheel of same axle.This monitor station can adapt to detection and the test with the braking ability of inertial braking system trailer of Different Weight, and indication and TT﹠C system have been disposed, realize automatically, the functions such as quickly and accurately in real time data acquisition, data processing and data analysis, testing result output, printing, the detection index of braking ability is complete.Can detect the braking ability that detects automobile under any speed of a motor vehicle, its test condition is near automobile actual travel situation, and its test result and actual condition are comparatively approaching.The vehicle performance automatic detection device that belongs to electromechanical integration has vital role to the driving safety that improves trailer.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that the trailer impact signal produces system's powered version schematic diagram;
Fig. 3 is that the trailer impact signal produces the pneumatic form principle figure of system;
Fig. 4 is the detection system schematic diagram;
Fig. 5 is the computer control block diagram.
Among the figure: 1, the frame-type base, 2, clamp device, 3, guide rail, 4, impact signal produces system, 5, trailer system, 6, indication and control system, 7, motor, 8,12 shaft couplings, 9, speed reduction unit, 10, electromagnetic clutch, 11, the flywheel group, 13, bearing seat, 14, cylinder, 15, photoelectric sensor, 16, speed measuring motor, 17, motor, 18, clutch coupling, 19, gear, 20, tooth bar, 21,22, travel switch, 23, air compressor machine, 24, ball valve, 25, filtering pressure reducing valve, 26, tensimeter, 27, electron pressure switch, 28, exhaust box, 29, solenoid valve, 30, flow speed control valve, 31, cylinder, 32, filtrator.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing and preferred embodiment.As shown in the figure, a kind of single shaft inertia-type list cylinder of inertia braking system for trailer detects test platform, comprise frame-type base 1, servicing unit, indication and TT﹠C system 6, impact signal produces system 4 and detection system, described detection system comprises rotor drive, drive unit and measurement mechanism, described rotor drive is made of cylinder 14 and flywheel group 11, described cylinder is by a left side, the right independent single cylinder that arranges consists of, a described left side, one end of the cylinder of right both sides is keyed jointing flywheel group respectively, described cylinder two ends are bearing on the bearing seat 13 by bearing respectively, two cylinder axis are on the same straight line, and described rotor drive is connected with drive unit; Described servicing unit comprises haulage gear 5, vehicle frame stationary installation.Described drive unit is made of motor 17, speed reduction unit 9 and electromagnetic clutch 10, and the speed reduction unit of described drive unit is connected with cylinder 14 and flywheel group 11 by electromagnetic clutch 10.Described measurement mechanism comprises speed measuring motor 16 and photoelectric sensor 15, and described speed measuring motor and photoelectric sensor are installed in the end of cylinder keyed jointing flywheel group opposite end successively.
Described impact signal produces system and mainly consists of electrodynamic type impact signal generation system by motor 17, clutch coupling 18, gear 19, tooth bar 2 and travel switch 21,22, described motor is connected with gear by clutch coupling, described wheel and rack engagement, described tooth bar two end spaceses are provided with travel switch.
Described impact signal produces system and mainly consists of pneumatic type impact signal generation system by (source of the gas) air compressor machine 23, air-path control system, gas circuit topworks and security system.
Described indication and TT﹠C system 6 comprise data Collection ﹠ Processing System, control system and indication and printing equipment, and indication comprises computing machine and connected amplification filtering module, A/D modular converter, digital indicator and printer with printing equipment; Data Collection ﹠ Processing System comprises each sensor that is installed on the detection system, described computing machine respectively with detection system on each sensor be connected by interface, computing machine is to automatic data collection and the processing of various kinds of sensors.
Described servicing unit comprises haulage gear 5, vehicle frame stationary installation.Described vehicle frame stationary installation mainly is made of guide rail 3 and clamp device 2, and described guide rail is fixed on the frame-type base, mobile link on clamp device and the guide rail, or be fixed on the guide rail.
Detect the property and function of each structure of test platform
Impact signal produces system
The Main Function of this system is to produce impact signal, the process of tractor bump trailer during simulating brake, make the hydro-pneumatic spring in the bail compressed, thereby tension braking stay cord, after inertia impact braking sensing device and the transmission of transmission levers system, shoe brake is opened, and detent works, and trailer produces braking.
There are two kinds of power sources optional, the one, powered version, the 2nd, pneumatic form.
(1) powered version.Powered version is comprised of motor, mechanical driving device.Mechanical driving device is comprised of clutch coupling, gear and rack mechanism device, travel switch etc.
As shown in Figure 2.Principle of work: motor start-up, closed clutch coupling after the arrival rated speed, driven gear rotates, through the rack-and-pinion kinematic train, make tooth bar do rectilinear motion, behind the stroke of arrival regulation, travel switch triggers, the closure of brake switch is kept in the motor stall by the self-locking system of deceleration generator; The invert button of actuating motor, motor reversal, the driven gear rack-driving makes the tooth bar counter motion, behind the stroke of arrival regulation, triggers travel switch, motor stalling.
As shown in Figure 3, (2) pneumatic form: pneumatic form mainly is comprised of cylinder 31 and pneumatic system.Cylinder excites trailer brake system work to the trailer sudden applied load.Through the air of air compressor machine 23 compressions, by entering pipeline behind filtrator 32 and filtering pressure reducing valve 25 filtration under diminished pressure, come coming and going of control cylinder by the solenoid valve 29 that is connected with exhaust box 28, flow speed control valve 30 is used for adjusting cylinder moving speed.Mounting ball valve 24 makes things convenient for the logical of manual control pipeline to close, and tensimeter 26 monitors the pressure of pipeline at any time, and electron pressure switch 27 handled easily personnel monitor system at operation room.
2. detection system, as shown in Figure 4,
Mainly formed by cylinder, drive unit, measurement mechanism.
2.1 rotor drive
Formed by cylinder and flywheel group etc.Arranged on left and right sides cylinder on the testing table carries out the inertia simulation of trailer in the real system respectively with the flywheel group with inertial flywheel and cylinder etc.The cylinder of inertia braking testing table is equivalent to the road surface of a movement, and the inertial mass of flywheel group is with to be examined the inertial mass of trailer suitable, so the drum drive system has and is equivalent to the inertia that trailer travels at road.
Cylinder is made of the left and right independent single cylinder that arranges, and diameter of cylinder is between 1200-1600mm, and the two ends of each cylinder use respectively rolling bearing and bearing block support on framework, and keep two cylinder axis on the same straight line.When the drive unit head roll rotated, cylinder was equivalent to the road surface of an activity, supported tested vehicle, and bore and transmit damping force.
2.2 drive unit
Drive unit is comprised of motor, speed reduction unit.Motor slows down to increase through speed reduction unit and turns round rear driving drum and the rotation of flywheel group.
2.3 measurement mechanism
Measurement mechanism mainly is comprised of speed measuring motor and photoelectric sensor.Speed measuring motor and photoelectric sensor are installed in the end of cylinder, are respectively applied to measure the number of turns of the test speed of a motor vehicle and recording drum rotation.
3. indicate and TT﹠C system
This system comprises data Collection ﹠ Processing System, control system and indication and printing equipment.Main Function be the control impact signal produce system bump constantly, the rotation of motor and stall etc., analyze, judge, demonstration braking system technology status.
3.1 data acquisition and processing (DAP) system
Adopt various universal class correlation parameter sensors, these sensors have wider range and precision, to realize the Real-time Collection of large scale and high accuracy; Sensor links to each other with computing machine by interface, by computing machine to the automatic acquisition and processing of various kinds of sensors.
3.2 control system
Take into account manual and automatic control system, the realization test-bed is finished the test of predetermined purpose.Specifically comprise rotating speed control, measure Control ﹠ data acquisition control etc.
3.3 indication and printing equipment
After test is finished, can show and print correlated performance parameter and dynamic changing curve.
Indication mainly contains the compositions such as computing machine, amplifier, A/D converter, digital indicator and printer with TT﹠C system.
4. frame-type base
The frame-type base is used for installing and fixing of each assembly system of testing table.
5. servicing unit
Comprise haulage gear, vehicle frame stationary installation etc.
Will acting on of haulage gear is the auxiliary upper and lower detection platform of trailer.The vehicle frame stationary installation mainly is comprised of guide rail and clamp device, and guide rail is fixed on the base, and clamp device determines that according to the length of vehicle body it is fixed on the position of guide rail, thereby realizes fixing car load.The Main Function of vehicle frame stationary installation is in the trailer testing process, keeps level and the stability of trailer car load.
The testing process
During detection, after tested car reaches testing table, by fixed clamping device car load is fixed.By the delay circuit starting motor, the power of motor is through shaft coupling, speed reduction unit, electromagnetic clutch head roll with by the flywheel group rotation of the inertia equivalent mass configuration of tested Vehicle Driving Cycle, the rotation of drum having motor car wheel, the speed measuring motor determination test speed of a motor vehicle is equipped with in the end of cylinder, after the both sides wheel reaches test speed simultaneously, computing machine sends instruction, disconnects the electromagnetic clutch of speed reduction unit and flywheel group, namely disconnects the power of head roll and flywheel group.Simultaneously impact signal generation system starts working, simulation tractor bump bail, and the hydro-pneumatic spring compression in the bail, thus make the brake system of trailer produce braking.Behind the wheel braking, flywheel group and cylinder rely on inertia to be rotated further, the inertia of simulation trailer on real road, and the number of turns that cylinder rotates changes electric impulse signal into by the photoelectric sensor that is contained in the cylinder end sends into recorder trace.The number of turns of rotating by test cylinder (flywheel group) is come retarded velocity or the rundown time of calculated braking distance, braking deceleration, wheel stall, and the data of passing through to demarcate are passed judgment on the performance of brake system.
After computer acquisition, processing, the damping force numerical value that is detected by indicating device or printer output.
The motor-driven cylinder, drive the trailer wheels rotation to specifying rotating speed by cylinder by friction force again, the process of trailer bump tractor when impact signal generation system produces impact signal bump trailer towing ring simulating brake, detection system detects, analyzes, judges the performance parameter of brake system.
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment does.
Claims (7)
1. the single shaft inertia-type list cylinder of an inertia braking system for trailer detects test platform, it is characterized in that: comprise the frame-type base, servicing unit, indication and TT﹠C system, impact signal produces system and detection system, described detection system comprises rotor drive, drive unit and measurement mechanism, described rotor drive is made of cylinder and flywheel group, described cylinder is by a left side, the right independent single cylinder that arranges consists of, a described left side, one end of the cylinder of right both sides is keyed jointing flywheel group respectively, described cylinder two ends are bearing on the bearing seat by bearing respectively, two cylinder axis are on the same straight line, and described rotor drive is connected with drive unit; Described servicing unit comprises haulage gear, vehicle frame stationary installation.
2. the single shaft inertia-type list cylinder of inertia braking system for trailer according to claim 1 detects test platform, it is characterized in that: described drive unit is made of motor, speed reduction unit and electromagnetic clutch, and the speed reduction unit of described drive unit is connected with cylinder and flywheel group by electromagnetic clutch.
3. the single shaft inertia-type list cylinder of inertia braking system for trailer according to claim 1 and 2 detects test platform, it is characterized in that: described measurement mechanism comprises speed measuring motor and photoelectric sensor, and described speed measuring motor and photoelectric sensor are installed in the end of cylinder keyed jointing flywheel group opposite end successively.
4. the single shaft inertia-type list cylinder of inertia braking system for trailer according to claim 1 detects test platform, it is characterized in that: described impact signal produces system and mainly consists of electrodynamic type impact signal generation system by motor, clutch coupling, gear, tooth bar and travel switch, described motor is connected with gear by clutch coupling, described wheel and rack engagement, described tooth bar two end spaceses are provided with travel switch.
5. the single shaft inertia-type list cylinder of inertia braking system for trailer according to claim 1 detects test platform, it is characterized in that: described impact signal produces system and mainly consists of pneumatic type impact signal generation system by source of the gas, air-path control system, gas circuit topworks and security system.
6. the single shaft inertia-type list cylinder of inertia braking system for trailer according to claim 1 detects test platform, it is characterized in that: described indication and TT﹠C system comprise data Collection ﹠ Processing System, control system and indication and printing equipment, and indication comprises computing machine and connected amplification filtering module, A/D modular converter, digital indicator and printer with printing equipment; Data Collection ﹠ Processing System comprises each sensor that is installed on the detection system, described computing machine respectively with detection system on each sensor be connected by interface, computing machine is to automatic data collection and the processing of various kinds of sensors.
7. the single shaft inertia-type list cylinder of inertia braking system for trailer according to claim 1 detects test platform, it is characterized in that: described vehicle frame stationary installation mainly is made of guide rail and clamp device, described guide rail is fixed on the frame-type base, mobile link on clamp device and the guide rail, or be fixed on the guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204916282U CN202903409U (en) | 2012-09-24 | 2012-09-24 | Single shaft inertia type single roller detection test platform for trailer inertia brake system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204916282U CN202903409U (en) | 2012-09-24 | 2012-09-24 | Single shaft inertia type single roller detection test platform for trailer inertia brake system |
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| CN202903409U true CN202903409U (en) | 2013-04-24 |
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| CN2012204916282U Expired - Lifetime CN202903409U (en) | 2012-09-24 | 2012-09-24 | Single shaft inertia type single roller detection test platform for trailer inertia brake system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889997A (en) * | 2012-09-24 | 2013-01-23 | 中国人民解放军总后勤部军事交通运输研究所 | Uniaxial inertial-type single-roller detection and test platform for trailer inertia braking system |
-
2012
- 2012-09-24 CN CN2012204916282U patent/CN202903409U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889997A (en) * | 2012-09-24 | 2013-01-23 | 中国人民解放军总后勤部军事交通运输研究所 | Uniaxial inertial-type single-roller detection and test platform for trailer inertia braking system |
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Granted publication date: 20130424 |