CN2485191Y

CN2485191Y - Automobile braking force performance detection table

Info

Publication number: CN2485191Y
Application number: CN 01240574
Authority: CN
Inventors: 杨乘懿
Original assignee: ZHONGYUAN STATE-RUN ELECTRIC DETECTING INSTRUMENTS FACTORY
Current assignee: Zhonghang Electronic Measuring Instruments Co Ltd
Priority date: 2001-06-27
Filing date: 2001-06-27
Publication date: 2002-04-10
Anticipated expiration: 2011-06-27

Abstract

The utility model belongs to automobile inspection equipment. It is composed of a left detection table and a right detection table. The automobile brake force measuring device comprises a rack 1, a main roller 4, an auxiliary roller 5, a speed reducing motor 9, a force arm 10 and a force measuring sensor 11, wherein the main roller 4, the auxiliary roller 5, the speed reducing motor 9, the force arm 10 and the force measuring sensor 11 are arranged on the rack, the speed reducing motor is connected with the end part of the main roller, the third roller 21 is arranged between the main roller and the auxiliary roller through a synchronizing shaft 13, a crank 14 and the like, a lifter 24 is arranged below the third roller, a speed measuring sensor 22 is further fixed on the crank, the speed measuring sensor and a code disc 23 at the end part of the third roller realize the detection of the.

Description

The automobile braking force performance detection stand

The utility model relates to automotive inspection equipment, particularly a kind of braking force monitor station that the automobile braking force performance is detected.

The automobile braking force monitor station of producing both at home and abroad mainly contains two kinds of structures at present, a kind of is to be being made of master rotor, auxiliary cylinder and the 3rd therebetween cylinder of representative with Germany, and another kind is to be being made of master rotor, auxiliary cylinder and therebetween lift jack of representative with Japan.The brake platform of these two kinds of forms is domestic is all producing each favourable covering of serviceability.The former detects by tachogenerator and just can think when slip rate between wheel and the cylinder reaches certain limit and detected maximum braking force, by corresponding control convenience cylinder is stopped operating, the wearing and tearing of wheel and cylinder have been avoided, but owing to there is not lift jack, the less automobile of diameter of tyres goes out Chefei's difficulty often after detection finishes, sometimes also need choose automobile is released, bring great inconvenience, be not suitable for automation especially and detect to testing.The latter mainly is that the turnover car is convenient, but owing to be not with the 3rd cylinder, after detecting maximum braking force, cylinder continues rotation, and wheel continues and the cylinder friction, has strengthened the abrasion loss of wheel and cylinder, has also caused the waste of the energy.

The purpose of this utility model is, gets the two length of prior art, provides that a kind of both to have passed in and out car convenient, less to wheel and cylinder wearing and tearing again, a kind of later-model automobile braking force monitor station that can also energy savings.

The technical solution of the utility model is: it comprises the left side that vehicle right and left wheel is detected respectively, right monitor station, a left side, right monitor station structure is identical, its structure is, the bearing seat 2 that is parallel to each other is housed on frame 1,2 ' and bearing seat 3,3 ', master rotor 4 and auxiliary cylinder 5 are housed respectively on the bearing seat, one end of master rotor 4 is equipped with drive sprocket 6, a corresponding end of auxiliary cylinder is equipped with driven sprocket 7, connect by chain 8 between two sprocket wheels, the master rotor end also links to each other with reducing motor 9, reducing motor is by connecting the arm of force 10 thereon, force transducer 11 is supported on the frame 1, above the side of frame 1, also be fixed with bearing seat 12,12 ', synchronizing shaft 13 is housed in the bearing seat, the synchronizing shaft two ends are connected with crank 14 by key 18,14 ', crank 14,14 ' hang pin 16 by spring 15 and spring to draw with frame and be one, also be fixed with the limit body 17 of restriction crank slewing area on the frame, at crank 14,14 ' two ends is equipped with the

3rd drum assembly

19,20,21, the 3rd cylinder is positioned at the master, between the auxiliary cylinder, tachogenerator 22 is fixed on the crank 14 and is contained in the detection of code-disc 23 realizations the 3rd drum rotation speed of the 3rd drum front end.Lift jack 24 also is equipped with in bottom between major and minor cylinder, and lift jack also is fixed on the frame, and its top is raising board 25, and lift jack must not interfere (comprising entire work process) (seeing Fig. 1, Fig. 2) with the 3rd cylinder 21.

In order to guarantee that lift jack 24 discord the 3rd cylinder interferes, its structure can be 1) raising board 25 can be made trough plate, make that in the course of the work the 3rd cylinder can enter the channel (see figure 2) of raising board.2) the 3rd cylinder 21 can be placed (see figure 3) between lift jack 24 and the auxiliary cylinder 5.3) the 3rd cylinder 21 can be placed (see figure 4) between lift jack 24 and the master rotor 4.

The utility model has the advantages that, have the 3rd drum assembly, can detect the slip rate between major and minor cylinder and wheel, after detecting maximum braking force, realize automatic power failure machine, reduce the mutual wearing and tearing between tire and the cylinder, thereby prolonged service life of equipment, reduced power consumption.Made things convenient for the automobile turnover because have lift jack, to the impact of monitor station, solved the steamboat automobile and driven into the difficulty of rolling away from when having reduced the automobile turnover, helped realizing that automation detects.

The drawing explanation:

Fig. 1 is a structural representation of the present utility model

Fig. 2 is the left view of Fig. 1

Fig. 3 is that the 3rd cylinder places the structural representation between lift jack and the auxiliary cylinder

Fig. 4 is that the 3rd cylinder places the structural representation between lift jack and the master rotor

Embodiment: the utility model is by the left and right left and right monitor station that detects of taking turns respectively of automobile is constituted, and left and right structure is identical, and here, we only narrate the monitor station structure of a side.On frame 1, parallel be equipped with bearing seat 2,2 ' and bearing seat 3,3 ', adorning master rotor 4 and auxiliary cylinder 5 on the bearing seat respectively, master rotor 4 is parallel with auxiliary cylinder 5, drive sprocket 6 is equipped with in master rotor 4 ends, be connected by the driven sprocket 7 of chain 8 with auxiliary cylinder 5 ends dress, the master rotor end also links to each other with reducing motor 9, and reducing motor is supported on the frame 1 with force transducer 11 by the arm of force 10 that connects thereon.Above the side of frame, also be fixed with bearing seat 12,12 ', adorning synchronizing shaft 13 in the bearing seat, the synchronizing shaft two ends link by key 18 crank 14,14 ', crank 14,14 ' hang pin 16 by spring 15 and spring to draw with frame and be one, also be fixed with the limit body 17 of restriction crank slewing area on the frame, at crank 14, axle 19 is equipped with at 14 ' both ends, be set with the 3rd cylinder 21 by bearings at both ends 20 on the axle, the 3rd cylinder is positioned at the master, between the auxiliary cylinder, tachogenerator 22 is fixed on the crank 14 and is contained in the detection of code-disc 23 realizations of the 3rd drum front end to the 3rd drum rotation speed, leading, bottom between the auxiliary cylinder, lift jack 24 also is housed, and lift jack also is fixed on the frame 1, and lift jack top is raising board 25, interfere for fear of lift jack and the 3rd cylinder, raising board is made trough plate.

The utility model is described in further detail below by working process:

Before automobile enters monitor station, lift jack 24 is risen (can be by pneumatic, hydraulic pressure or mechanical system realize), automobile sails monitor station again into, wheel contacted and pushed the 3rd cylinder with the 3rd cylinder 21 this moment, make the coupled crank 14 of the 3rd cylinder 21,14 ', synchronizing shaft 13 is around bearing seat 12, the rotation of 12 ' axle center, spring 15 elongates, be threaded under the 3rd cylinder in the groove of raising board of lift jack, crank continues back-moving spring, and under the spring tension effect, the 3rd cylinder contacts with wheel all the time, after lift jack drops to a certain degree, wheel and master rotor 4, auxiliary cylinder 5 contacts, lift jack continues to descend, and lift jack and wheel break away from.Start reducing motor 9, drive master rotor 4 rotations, by drive sprocket 6, chain 8, driven sprocket 7 auxiliary cylinder 5 is passed in motion again and rotated synchronously, wheel drives 21 rotations of the 3rd cylinder, and tachogenerator 22 detects the rotating speed of the 3rd cylinder.When automobile is touched on the brake, wheel velocity descends, the rotating speed of the 3rd cylinder descends simultaneously, control system compares tachogenerator 22 detected rotating speeds and the rotating speed that do not touch on the brake, because the braking force of wheel is passed to force transducer 11 by master rotor 4, reducing motor 9, the arm of force 10, measure braking force simultaneously by sensor 11.When rotating speed dropped to the scope of default, control system was just thought the maximum braking force that has detected automobile, and closes reducing motor, detected and finished.After detecting end, lift jack is risen, under the tension of spring 15, the 3rd cylinder 21 is rotated up by the rising with lift jack and wheel in the flute profile raising board, with crank 14,14 ', synchronizing shaft 13 is around the counter-rotating of bearing seat 12,12 ' axle center, after the lift jack lifting is got up, automobile is left, after automobile is left, the 3rd cylinder 21 and crank 14,14 ', synchronizing shaft 13 continues counter-rotating around bearing seat 12,12 ' axle center, when crank 14,14 ' with after limit body contacts, the 3rd cylinder is got back to initial condition.Detect and finish.

Claims

1, a kind of automobile braking force performance detection stand, it is the left side by same structure, right monitor station is formed, its structure is, on frame (1), bearing seat parallel to each other (2 is housed, 2 ') and bearing seat (3,3 '), master rotor (4) and auxiliary cylinder (5) are housed respectively on the bearing seat, one end of master rotor (4) is equipped with drive sprocket (6), the corresponding end of auxiliary cylinder is equipped with driven sprocket (7), connect by sprocket wheel (8) between two sprocket wheels, the master rotor end also links to each other with reducing motor (9), reducing motor is by connecting the arm of force (10) thereon, sensor (11) is supported on the frame, side top in frame (1), also be fixed with bearing seat (12,12 '), synchronizing shaft (13) is housed in the bearing seat, the synchronizing shaft two ends are connected with crank (14 by key (18), 14 '), crank (14,14 ') hanging pin (16) by spring (15) and spring draws with frame and is one, be fixed with the limit body (17) of restriction crank slewing area on the frame, at crank (14,14 ') two ends is equipped with the 3rd drum assembly (19,20,21), it is characterized in that the 3rd cylinder (21) is positioned at the master, between the auxiliary cylinder, tachogenerator (22) is fixed on crank (14,14 ') on, the 3rd drum front end is equipped with code-disc (23), leading, lift jack (24) also is equipped with in the bottom of auxiliary cylinder, lift jack is fixed on the frame, and its top is raising board (25).

2, automobile braking force performance detection stand according to claim 1 is characterized in that, lift jack top raising board (25) is a trough plate.

3, automobile braking force performance detection stand according to claim 1 is characterized in that, the 3rd cylinder (21) is positioned at the space between lift jack (24) and the auxiliary cylinder (5).

4, automobile braking force performance detection stand according to claim 1 is characterized in that, the 3rd cylinder (21) is positioned at the space between lift jack (24) and the master rotor (4).