CN2612579Y

CN2612579Y - Apparatus of detecting automobile anti-locking braking system performance

Info

Publication number: CN2612579Y
Application number: CN 03216515
Authority: CN
Inventors: 聂建伟; 张琴英
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-04-14
Filing date: 2003-04-14
Publication date: 2004-04-21
Anticipated expiration: 2013-04-14

Abstract

Disclosed is a car anti-locking brake assembly performance checkout gear in the automobile technical sphere which is for resolve the problem of anti-locking brake assembly performance checkout gear, the gear comprises a bottom board and four pairs of drum set, each pair of the drum set comprises a master drum, a salve drum, a change-speed motor and a twisting moment inductor, the master drum and the salve drum are parallel interval provided, the ends of the change-speed motor rotor shaft are rotate supported on the bottom board and transport connected with the master drum, the shell of the change-speed motor is a free gyro-rotor, the torque-rod of the torque-rod inductor is connected with the shell, the torque sensor is fixed on the bottom board, the torque-rod head is contacted with the torque sensor, every master drum and salve drum are rotate supported on the bottom board, four pairs of drum set are separately corresponding with the four wheels of the car, the brake performance of the fore and aft axis in the car can be checked by the utility model, the detect demand of the prior automobile ABS control system can be satisfied, the structure is simple and the detection is convenient.

Description

The anti-lock braking system in automobiles device for detecting performance

Technical field

The utility model relates to the detecting device of glancing impact antiblock device in the modern automobile, and the mechanical drive during in particular for this detection belongs to automobile technical field.

Background technology

Anti-lock braking system in automobiles (hereinafter to be referred as ABS) can be in Motor Vehicle Braking Procedure the automatic guidance and the size of regulating braking force, prevent wheel lockup, and then unsteady state such as the sideslip in the elimination braking procedure, sideslip, forfeiture steering capability, to obtain good deceleration and stopping performance, operating characteristic and stability, be nearly twenty or thirty begins to be applied to a kind of advanced person on the automobile over year control technology.At present, ABS has become developed countries such as Europe, the United States, day and has produced standard facility on the automobile.China popularized this technology since 2000.Increasing and ABS popularizing on domestic automobile along with imported auto, in the vehicle inspection and test maintenance, especially in the detection of the brake system of car maintenance, ABS control performance detection problem reveals gradually, at present, the detecting device of existing automobile brake perfrmance can not adapt to the ABS performance detection, this is because the detecting device of non-ABS can only detect the deceleration and stopping performance of front axle or rear axle in succession, ABS then requires to detect simultaneously the deceleration and stopping performance of forward and backward axle, and studies the relation curve between the braking force and automobile speed in this course.Obviously, this detection be finished, just mechanical device and the facility that is used for this detection must be at first studied.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of anti-lock braking system in automobiles device for detecting performance for the detection of satisfying the ABS control technology.

The alleged problem of the utility model realizes with following technical scheme:

A kind of anti-lock braking system in automobiles device for detecting performance, be provided with base plate and four series cylinders system in its formation, in each series cylinder system again by drive roll 3, driven cylinder 4, change speed motor 5 and moment of torsion induction mechanism constitute, wherein, main, driven cylinder parallel interval is provided with, the two ends swivel bearing of change speed motor rotor shaft is in transmission connection on base plate and with drive roll, the casing of change speed motor is free gyro-rotor, torque tube 6 in the moment of torsion induction mechanism is connected with casing, torque sensor 7 is fixed on the base plate, the head of torque tube 6 presses on torque sensor 7, each is main, driven cylinder swivel bearing is on base plate, and 4 series cylinders system is four wheels of corresponding automobile respectively.

Above-mentioned anti-lock braking system in automobiles device for detecting performance, described base plate is divided into fixed base plate 1 and adjustable base plate 2, and configuration roll-setting gear, roll-setting gear is made up of guide rail 8, roll adjustment wheel 9, roll adjustment motor 10, leading screw 11 and mother lead screw 12, wherein, guide rail is positioned at the below of fixed base plate and adjustable base plate, and the roll adjustment wheel fixes with adjustable base plate, roll adjustment motor and mother lead screw are installed on respectively on the bottom surface of fixed base plate and adjustable base plate, and the roll adjustment motor is connected with lead screw transmission.

Above-mentioned anti-lock braking system in automobiles device for detecting performance, set up movable drum 13 and displacement sensing mechanism in described each cylinder system, movable drum is set in parallel between the driving and driven cylinder, the supporting mass 15 at its two ends is arranged in the lifting groove 16-1 of supporting base 16, be provided with spring 17 between the bottom land of supporting mass and lifting groove, locating piece 14 in the displacement sensing mechanism is fixed on the supporting mass, displacement pickup 22 is fixed in described fixed base plate or adjustable base plate on, the two position is corresponding.

The mechanical detection means of the roller frame pattern that provides by the utility model, can utilize the frictional force drives wheel revolutions between cylinder and the wheel, can control the rotating speed of wheel by change speed motor, can test the deceleration and stopping performance of corresponding axletree by the torque sensor in each cylinder system, and can detect forward and backward deceleration and stopping performance simultaneously, obtain the ABS performance perameter of automobile.The utility model has solved the detection problem of modern automobile ABS control system, and has characteristics simple in structure, easy to detect.

Description of drawings

Fig. 1 is the utility model structural representation birds-eye view;

Fig. 2 is that K among Fig. 1 is to view;

Fig. 3 is that J among Fig. 1 is to view;

Fig. 4 is a displacement sensing mechanism structure scheme drawing.

The specific embodiment

Consult Fig. 1,2,3, the change speed motor 5 in the utility model can adopt variable-frequency motor or DC machine etc., adopts the variable-frequency motor that has retarder in the diagram.Certainly, also can adopt common electric machine to carry out speed change by transmission system.One end swivel bearing of the rotor shaft of change speed motor 5 on the bearing seat 18, the output shaft swivel bearing of the other end by retarder be on another bearing seat 18, the casing of change speed motor and the casing of retarder are the casing of one, leave the space between casing and the base plate, can rotate freely.Torque tube 6 is fixed on the shell face of casing, in 4 change speed motoies 5, two change speed motoies of wheel are opposite with two other change speed motor hand of rotation before or after corresponding, the power that the glancing impact cylinder acts on the wheel can be cancelled out each other, and detected vehicle is gone out test desk in the time of can preventing to rotate in the same way under effect of inertia.Because the change speed motor hand of rotation of forward and backward wheel is opposite, so 4 torque tube 6 corresponding two settings forward, two settings backwards, torque sensor 7 is the dynamometry torque sensor, be fixed on the base plate, the head of each torque tube 6 presses on dynamometry torque sensor 7, during change speed motor 5 energisings, rotor shaft drives drive roll 3 rotations by retarder, and casing is subjected to the restriction of torque tube to keep static relatively (not rotating) state.The diameter of driving and driven cylinder can equate, also can not wait.The tube face is on the same horizontal surface.Driving and driven cylinder should have certain length, to satisfy the variation of the left and right between-wheel spacing of different automobile types.Have on the driving and driven cylinder tube face and fuse aluminium vanadine sand grains, to increase friction force.

Consult Fig. 1,2, in the illustrated example, after base plate is divided into fixed base plate 1 and adjustable base plate 2, the plate face of the two still is on the same horizontal surface, fixed base plate 1 stationkeeping, adjustable base plate 2 can carry out the spacing adjusting by the relative fixed base plate under roll-setting gear drives, with the variation of the suitable forward and backward between-wheel spacing of different automobile types.Guide rail 8 is a steel I-beam, and quantity is two, and fixed interval is below fixed base plate and adjustable base plate, the quantity of roll adjustment wheel 9 is at least 4, one group of forward and backward side who is installed in adjustable base plate in twos, each roll adjustment wheel inboard has positioning platform 9-1, sideslip in the time of can preventing roll adjustment.Roll adjustment motor 10 is in transmission connection by retarder 20 and leading screw 11, and roll adjustment motor and retarder are installed on the bottom surface of fixed base plate 1, and mother lead screw 12 is installed on the bottom surface of adjustable base plate 4.Retarder 20 is a worm type of reduction gearing in the diagram.

Consult Fig. 1,4, the diameter of movable drum 13 is less, the supporting mass 15 at its two ends rises to the top of lifting groove 16-1 under the effect of spring 17 at ordinary times, the tube face of movable drum exceeds the master, the tube face of driven cylinder, the wheel of automobile is positioned at the master when detecting, on the driven cylinder, movable drum overcomes spring force and moves downwards under the wheel pressure effect, when automotive wheel in detecting, occurring because of brake inertia preshoot disengaging movable drum tube face, movable drum rises rapidly under spring 17 effects again, locating piece 14 rises thereupon, no longer press displacement pickup 22, displacement pickup 22 sends signal, change speed motor 5 is shut down, can prevent the rapid friction between drive roll and the wheel.Displacement pickup 22 can adopt common limit switch or near switch.

When using the utility model to detect the ABS performance of automobile, running car to 4 series cylinder is fastened, the change speed motor 5 that starts in each group by control system drives the drive roll rotation, wheel and driven cylinder be rotation synchronously thereupon, automobile is in the simulation motoring condition, can control vehicle wheel rotational speed by change speed motor, the drag when travelling as if simulated automotive, then the ABS control system of automobile enters mode of operation thereupon.Four-wheel can be surveyed car load braking state and automobile brake coordinated time with survey, also can two front-wheels stops earlier, two trailing wheel rear brakes, separately test.When the braking force of a certain wheel or two front-wheels or two trailing wheels deviation occurs or when asynchronous, the rotating speed of this wheel or set of wheels changes, be applied to an acting in opposition moment of torsion on the drive roll of wipe contact with it, this moment of torsion sends torque sensor 7 to by torque tube 6, torque sensor sends induced signal to computer control system, can draw the serviceability of this car ABS system after control system is handled.

Claims

1. anti-lock braking system in automobiles device for detecting performance, it is characterized in that, be provided with base plate and 4 series cylinders system in the formation, has drive roll [3] in each series cylinder system, driven cylinder [4], change speed motor [5] and moment of torsion induction mechanism, main, driven cylinder parallel interval is provided with, the two ends swivel bearing of change speed motor rotor shaft is in transmission connection on base plate and with drive roll, the casing of change speed motor is free gyro-rotor, torque tube in the moment of torsion induction mechanism [6] is connected with casing, torque sensor [7] is fixed on the base plate, the head of torque tube [6] presses on torque sensor [7], each is main, driven cylinder swivel bearing is on base plate, and 4 series cylinders system is four wheels of corresponding automobile respectively.

2. anti-lock braking system in automobiles device for detecting performance according to claim 1, it is characterized in that, described base plate is divided into fixed base plate [1] and adjustable base plate [2], and configuration roll-setting gear, roll-setting gear has guide rail [8], roll adjustment wheel [9], roll adjustment motor [10], leading screw [11], mother lead screw [12], wherein, guide rail is positioned at the below of fixed base plate and adjustable base plate, the roll adjustment wheel fixes with adjustable base plate, roll adjustment motor and mother lead screw are installed on respectively on the bottom surface of fixed base plate and adjustable base plate, and the roll adjustment motor is connected with lead screw transmission.

3. anti-lock braking system in automobiles device for detecting performance according to claim 1 and 2, it is characterized in that, set up movable drum [13] and displacement sensing mechanism in described each cylinder system, movable drum is set in parallel between the driving and driven cylinder, the supporting mass at its two ends [15] is arranged in the lifting groove [16-1] of supporting base [16], be provided with spring [17] between the bottom land of supporting mass and lifting groove, locating piece in the displacement sensing mechanism [14] is fixed on the supporting mass, torque sensor [22] is fixed on described fixed base plate or the adjustable base plate, and the two position is corresponding.