CN102514561B

CN102514561B - Tandem brake system

Info

Publication number: CN102514561B
Application number: CN 201110430086
Authority: CN
Inventors: 胡达广
Original assignee: Individual
Current assignee: State Grid Shanghai Electric Power Co Ltd; East China Power Transmission and Transformation Engineering Co Ltd
Priority date: 2011-12-20
Filing date: 2011-12-20
Publication date: 2013-10-09
Anticipated expiration: 2031-12-20
Also published as: CN102514561A

Abstract

A tandem brake system belongs to the field of means of transport. An existing motor tricycle is different from other means of transport, deflection or roll-over accidents can be easily caused when braking force of two rear wheels of the existing motor tricycle is uneven, and the existing motor tricycle is quite dangerous. Simultaneously, the existing motor tricycle with the structure realizes braking for the two rear wheels by a braking pedal, and the braking pedal can generate quite limited braking force, and is obviously powerless to simultaneously realize braking of the two wheels when load of the existing motor tricycle is high. The condition cannot be changed for many years, and accordingly a large number of traffic accidents are caused. In order to overcome the shortcomings, technical measures are taken for the tandem brake system in the technical scheme and mainly include that a braking pedal only realizes braking for one rear wheel and a braking device on the rear wheel, and braking for another rear wheel and a braking device thereon is realized via the braking device and a transmission, namely a tandem braking mode is realized.

Description

A kind of polyphone brake system

Technical field

A kind of polyphone brake system, a field of genus transport facility.

Background technology

Vehicle braked is related to the safety of people's lives and properties.Roadlice in some large-scale automobiles or some higher gears has all adopted the driving engine power brake and has obtained braking effect preferably.But some cheap dillies particularly the motor tricycles transport trolley they do not have the condition that the driving engine power brake is installed, these vehicle braked effects unsatisfactory but every days all grows wild hauling the heavy goods dangerous sign or phenomenon of running around here and there.Existing three wheeled motor car has distinguished place, if its two trailing wheel braking forces inhomogeneous as easy as rolling off a log cause sideslip and rollover when braking are breakneck.Though this shape can obtain to a certain degree improvement by adjustment, it is very difficult reaching good effect.Simultaneously the structure of these cars generally all is that a brake pedal is implemented braking to two trailing wheels, and the braking force that brake pedal can produce is very limited, it simultaneously two wheels enforcements to be braked, and obviously is unable to do what one wishes in loaded vehicle.This situation there is no to change and has therefore also caused many traffic accidents for these years.

Summary of the invention

For overcoming the above-mentioned shortcoming of existing three wheeled motor car, the technical program has been taked some technical measures, and these measures are equally applicable to four-wheeled.These are arranged mainly is that brake pedal is only implemented braking to the brake equipment on one of them trailing wheel and trailing wheel, and by this brake equipment and driving device the brake equipment on another trailing wheel and trailing wheel is implemented braking so-called polyphone braking just.Concrete way is that left and right hoof disk activity is installed on back axle or the transmission shaft, left and right hoof dish links together by driving device, brake pedal is only implemented braking to the brake equipment on one of them trailing wheel and trailing wheel, and the brake rocker arm on another trailing wheel brake equipment is hinged on the bearing of vehicle frame by brake connecting rod.Because driver's control effort only is used in the braking of a trailing wheel, such result makes the obtainable braking force of single trailing wheel (comprising control effort) be greatly improved, again owing to be the polyphone braking, so another trailing wheel also can obtain equal braking force, the braking force of two trailing wheels also can equate under any state under the situation about need not adjust especially in automatic strictness.Overcome the above-mentioned shortcoming of wheel brake system behind the existing three-wheel vehicle effectively.

Description of drawings

Fig. 1, polyphone brake system birds-eye view.

Fig. 2, the left back upward view of polyphone brake system.

Fig. 3, the right back birds-eye view of polyphone brake system.

Fig. 4, the left back birds-eye view of polyphone brake system.

Fig. 5, driving device are the left back birds-eye view of polyphone brake system of chain.

Among the figure, 1 left brake wheel, 2 left hoof dishes, 3 left cam axles, 4 left rocking arms, 5 brake connecting rods, 6 trailing wheels, 7 left hoof dish lugs, 8 left connecting rods, 9 intermediate connecting rods, 10 right connecting rods, 11 lever lefts, 12 right levers, 13 right hoof dish lugs, 14 retracing springs, 15 spring brackets, 16 right system drums, 17 right hoof dishes, 18 right cam axles, 19 right rocking arms, 20 brake lines, 21 brake stay cords, 22 brake line supports, 23 back axles, 24 vehicle frames, 25 bearings, 26 chain wheel supports, 27 chains, 28 sprocket wheels.

The specific embodiment

Principle of work: drum brake system brake wheel when braking can drive the hoof dish by brake shoe brake cheek and rotate, and the hoof dish must provide enough antagonistic forces could realize the actv. braking to brake shoe brake cheek.The size of the braking force of drum brake mechanism depends on pressure in the wheel cylinder or the corner of cam axle and rocking arm.This programme utilizes these two prominent points by left and right two hoof disk activity are installed on back axle or the transmission shaft exactly, it can freely be rotated, by driving device two hoof dishes are coupled together simultaneously and allow them can synchronous backward rotate, driven by a brake equipment that another brake equipment rotates and braking.Here said driving device can be made of connecting rod, also can be made of chain etc.This routine trailing wheel 6, the right cam axle 18 on the right hoof dish 17 and right rocking arm 19 are accepted the control of driver's brake pedal by brake line 20, braking stay cord 21.Left cam axle 3 and left Rocker arm 4 on the left hoof dish 2 of another trailing wheel (this example is left rear wheel) brake equipment are hinged on the bearing 25 of vehicle frame by brake connecting rod 5.When left hoof dish 2 turned an angle, left cam axle 3 also rotated same angle, produced certain braking force.When off hind wheel was implemented braking, the antagonistic force on the right hoof dish 17 was provided by the left hoof dish 2 on another trailing wheel, was that the opposing party's trailing wheel brake equipment is carried antagonistic force with regard to left and right two trailing wheels of saying so with oneself braking force also.As long as the strict symmetry of the brake equipment of left and right two trailing wheels, the braking force of both gained is just strict automatically so in theory equates that they are in the dynamic balance state.Simultaneously brake pedal is only implemented braking to one of them trailing wheel brake equipment and just can be realized that two trailing wheels brake simultaneously, has improved sensitivity, the effect that receipts are killed two birds with one stone.Of particular note the technical program is not only applicable to three-wheel vehicle and is equally applicable to four-wheeled.

What install on left and right two trailing wheels of this example all is basic the same drum brake system, and the brake equipment on the off hind wheel mainly is made up of right brake wheel 16, brake shoe brake cheek, right hoof dish 17, right cam axle 18, right rocking arm 19 etc.Brake equipment on the left rear wheel mainly is made up of left brake wheel 1, brake shoe brake cheek, left hoof dish 2, left cam axle 3, left Rocker arm 4 etc.All be welded with hoof dish lug on the left and right hoof dish and the hoof dish is integrated.Be welded with right hoof dish lug 13 and brake line support 22 on the right hoof dish 17.Right hoof dish lug 13 is connected on the left hoof dish lug 7 by right connecting rod 10, right lever 12, intermediate connecting rod 9, lever left 11, left connecting rod 8, these connecting rods, lever, lug all are by end bar joint bearing hinge connection together, and lever left 11, right lever 12 are hinged on the vehicle frame 24 as shown in Figure 1 and Figure 2.So left hoof dish 2 and right hoof dish 17 just can realize that synchronous backward rotates.On the right hoof dish brake line 20 is installed, it is fixed on the right hoof dish 17 by brake line support 22, and the braking stay cord 21 on the brake line is installed on the right rocking arm 19.The other end of brake line is connected on driver's the brake pedal.When the driver stepped on brake pedal, the braking stay cord 21 on the brake line drives right rocking arm 19 and right cam axle 18 rotates, and drives brake shoe brake cheek right brake wheel 16 and off hind wheel are implemented braking.Off hind wheel drives right brake wheel 16, brake shoe brake cheek, 17 rotations of right hoof dish.Driven left hoof dish 2 by above-mentioned driving device when right hoof dish 17 rotates and waited until that oppositely the width of cloth rotates.Left cam axle 3 on the left side hoof dish 2 is installed with left Rocker arm 4, and left Rocker arm 4 is hinged with on the brake connecting rod 5, and the other end of brake connecting rod 5 is hinged on the bearing 25.Because on bearing 25, so need only left hoof dish 2 rotating certain angle, left cam axle 3 also rotates identical angle and drives brake shoe brake cheek implements braking to left brake wheel 1, left rear wheel to an end of left Rocker arm 4 by brake connecting rod 5 relative fixed.The braking force of off hind wheel only depend on the driver firmly, it has nothing to do with the corner of right hoof dish 17, the braking force of left rear wheel only depends on the rotational angle of left hoof dish 2.Because both oppositely link together, so right hoof dish 17 just can exchange the antagonistic force of its needs with corner for, that is to say that its antagonistic force of the more big acquisition of corner is more big.Left side hoof dish 2 just in time needs corner to produce braking force, and two hoof dishes just in time are the polyphone complementary relationship, produce dynamical equilibrium in braking procedure.When the driver goes into overdrive to step on brake pedal, off hind wheel strengthens the drive of right hoof dish 2.Original balance is broken on the right hoof dish 2.Right hoof dish 2 has rotated, and this rotation spurs the rotation that left hoof dish 17 also produces synchronous backward by driving device, and the rotation of left hoof dish 17 has strengthened it and the friction of left brake wheel, makes the bigger antagonistic force of left hoof dish 17 generations resist the continuation of this rotation.Produced new balance so again.This brake system can make left and right two trailing wheels obtain the strict braking force that equates, the while brake pedal is only implemented braking to left and right one of them wheel, just can obtain two wheels whiles with the braking of amount with a braking strength.This point is very precious concerning three wheeled motor car, and it can effectively avoid the sideslip and the rollover that the time are easy to generate in braking.Native system is equipped with retracing spring 14 and spring bracket 15 at intermediate connecting rod 9.Centre link 9 is pulled on one side when braking, at this moment this spring pressurized on one side.After braking was finished, the spring reset pull bar was pushed back original position.

This routine brake line 20 and braking draw strong 21 can be contained in equally on the left hoof dish 2 left brake wheel and left rear wheel are implemented braking, and the left Rocker arm 4 on the left hoof dish 2, brake connecting rod 5, bearing 25 etc. in statu quo are contained in the right of right hoof dish 17 and vehicle frame mirror image.Be exactly the brake equipment reversing of position of the right and left in a word, its effect is just the same.The driver to the braking of wheel except this example with also can using oil pump instead the mode of brake line, as master cylinder is contained on the brake pedal, wheel cylinder is contained in and drives brake shoe brake cheek on right hoof dish 17 or the left hoof dish 2 corresponding brake wheel and trailing wheel are implemented braking.Master cylinder and wheel cylinder link together with oil pipe, can constitute a brake equipment equally with right or left brake wheel etc.Also can constitute driving device with chain between left side hoof dish 2 and the right hoof dish 17 and couple together, as shown in Figure 5.Four sprocket wheels 28 are fixed on the vehicle frame 24 by four chain wheel supports 26, and left hoof dish lug 7, right hoof dish lug 13 link together by chain 27.They can be rotated by synchronous backward, and in addition other is identical with a last example.As long as can make and can produce the reverse sync rotation between left hoof dish 2 and the right hoof dish 17, any driving device all is fit to the technical program to be used.

Claims

One kind the polyphone brake system, mainly comprise left hoof dish (2), left side rocking arm (4), brake connecting rod (5), left side hoof dish lug (7), left side connecting rod (8), intermediate connecting rod (9), right connecting rod (10), lever left (11), right lever (12), right hoof dish lug (13), right hoof dish (17), right rocking arm (19), brake line (20), braking stay cord (21), back axle (23), bearing (25), it is characterized in that: right rocking arm (19) connects brake pedal by the braking stay cord (21) of brake line (20) lining, brake pedal is only implemented braking to the brake equipment on the trailing wheel, on the left side hoof dish (2) left hoof dish lug (7) is arranged, on the right hoof dish (17) right hoof dish lug (13) is arranged, left side hoof dish (2), right hoof dish (17) is movably arranged on back axle (23) or the transmission shaft, right hoof dish lug (13) passes through by right connecting rod (10), right lever (12), intermediate connecting rod (9), lever left (11), the driving device that left side connecting rod (8) is formed oppositely is connected on the left hoof dish lug (7), drive left hoof dish (2) backward rotation, left side rocking arm (4) is hinged on the brake connecting rod (5), the other end of brake connecting rod (5) is hinged on the bearing (25), and bearing (25) is contained on the vehicle frame (24).