CN2547595Y - Driving wheel outer edge mechanical brake device - Google Patents

Abstract

The utility model provides a driving wheel outer edge mechanical brake device, wherein, turning points of an emergency brake pedal and a pedal in the prior hydraulic brake device of automobile are the same point, a clutch with wheel (eccentric wheel) is connected with an eccentric link structure and a swing link; a link of a lower end of the emergency brake pedal is connected with the swing link and a rotating rod mechanism, which is connected with a beam of a vehicle, the other end of the rotating rod mechanism is connected with an outer rim brake shoe which is a metal block covered with a rubber layer and arranged at the outer rim of the driving wheel. A resultant force is formed by torsion of an engine and friction formed by the outer rim brake shoe and the ground to prevent the driving wheel from sliding forward. An inertial movement is prevented, under conditions that a vehicle clutch firstly cut off torsion which the engine transmits to the driving wheel, the driving wheel is blocked by the prior hydraulic (air) brake device to roll (emergency brake), and the driving wheel is in a static state in stead of rolling. The utility model adopts a method of 'inside cut and outside block' to the driving wheel together with the hydraulic (air) brake device, thereby preventing traffic accidents.

Description

The drive wheel outer edge mechanical brake device

Technical field: the utility model relates to the motor vehicle brake device, relates in particular to the drive wheel outer edge mechanical brake device.

Technical background: along with the speed of a motor vehicle improves, existing hydraulic pressure of motor vehicle (air pressure) brake system can in time be checked the speed car or slow down, but because inertia exists, and the speed of a motor vehicle is high more, big more by the distance that slides forward after anxious the stopping, traffic accident takes place easily.

Technical scheme:

The purpose of this utility model is to overcome above-mentioned shortcoming, providing a kind of can at first block driving engine at automobile clutch and be defeated by drive wheel torsion, utilize original hydraulic pressure (air pressure) brake equipment to stop drive wheel rolling (suddenly stopping), make it become under the prerequisite of quiescence by rolling, prevent the device that slides, it and hydraulic pressure (air pressure) brake equipment are taked " interior section outer stifled " measure to drive wheel simultaneously, and this device is exactly the drive wheel outer edge mechanical brake device.

The drive wheel outer edge mechanical brake device is characterized in that:

Stretcher 3 turning points are same O1 point in hard braking pedal 4 on the drive wheel outer edge mechanical brake device 2 and the vehicle original hydraulic brake device 1, hard braking pedal 4 is connecting drg 5, mounting spring 6 on the drg 5, hard braking pedal 4 lower ends are equipped with a pulley clutch 13, pulley clutch 13 and change gear 10 upper belt-wheels 11 are by being with 12 to be connected, change gear 10 and connection gear 9 engagements, connection gear 9 and 8 engagements of engine flywheel 7 upper ring gears;

Belt wheel (eccentric wheel) power-transfer clutch 13 connects eccentric pulling bar structure 35, and eccentric pulling bar structure 35 comprises that threaded connection 15 connects telescopic head 16, and telescopic head 16 connects fork 33;

In hard braking pedal 4 bottom end pulling bars 34 retractor device 14 is installed, pull bar 34 connects fork 33, fork 33 is connecting rotary head 17 tops of bar-turning mechanism 32, bearing 19 on the bar-turning mechanism 32 is connected on the self-propelled vehicle crossbeam 28, bar-turning mechanism 32 is connected by spring 18 with bearing 19, bar-turning mechanism 32 is connected by spring 22 with expansion link 21 by its retracting cylinder 20, bar-turning mechanism 32 other ends are connected with outer edge brake shoe 25, outer edge brake shoe 25 is made up of derby 24 outsourcing one deck rubber layers 23, and outer edge brake shoe 25 is placed on the drive wheel outer rim.

Drive wheel outer edge mechanical brake device 2 is installed on one's body the self-propelled vehicle side by side with hydraulic brake system 1.

Principle of work: see Fig. 1,

The function of drive wheel outer edge mechanical brake device 2: under the cooperation of original hydraulic pressure (air pressure) brake equipment 1 and generator clutch on the vehicle, by flywheel 7 outputting torsion Fa, be delivered on the outer edge brake shoe 25 by pulley clutch 13, eccentric pulling bar structure 35, bull stick structure 32, by outer edge brake shoe 25 and ground-surface friction force F Φ effect, overcome drive wheel because anxious the generation in a flash slided power F forward.--drive wheel is not slided forward in a flash by anxious, guarantee safety traffic.The formula of power is: engine torsion Fa+ friction force F Φ＞slide power F.

The principle of drive wheel outer edge mechanical brake device 2:

Drive wheel outer edge mechanical brake device 2 is according to the size of force of sliding friction both heel pressure size relation to be arranged, and the degree of roughness with contact surface has relation again; Pressure is big more, and force of sliding friction is big more; Contact surface is more rough roughly, the big more and above-mentioned balance between two forces principle design of force of sliding friction.Clutch equipment energy combustion cutoff is defeated by the torsion of drive wheel on the self-propelled vehicle, original hydraulic pressure (air pressure) brake equipment of installing is braked the drive wheel that continues rolling on the vehicle by the mechanical friction mode, mobile has the characteristic of inertia, drive wheel is stopped by anxious when high speed rotating, because inertia also can slide a segment distance forward, easily has an accident.Cooperate with hydraulic brake system 1 synchronously by drive wheel outer edge mechanical brake device 2 drive wheel 29 is formed " interior section is outer stifled ", help making drive wheel by hydraulic pressure is anxious stop after, do not slide forward.Formula is: engine torsion Fa+ friction force F Φ＞slide power F.Hard braking pedal 4 in the vehicle original hydraulic brake device 1 on stretcher 3 and the drive wheel outer edge mechanical brake device 2 is same turning point O1, stretcher 3, hard braking pedal 4 are installed side by side, because drive wheel outer edge mechanical brake device 2 has adopted above these schemes, just guaranteed safety traffic and reduced the driver operation program.Must guarantee under hydraulic pressure (air pressure) the brake equipment reasonable conditions, and during emergency brake, could use device of the present utility model.

Advantage: when drive wheel outer edge mechanical brake device 2 does work to drive wheel synchronously with hydraulic pressure (air pressure) brake equipment 1, behind power-transfer clutch combustion cutoff torsion on the driving engine, when hydraulic pressure (air pressure) brake equipment 1 is braked drive wheel, synchronously by producing torsion Fa on the engine flywheel 7, through connection gear 9, change gear 10, pulley clutch 13 under the hard braking pedal 4, pulley clutch 13 is again an eccentric wheel, and telescopic head 16 on the eccentric pulling bar structure 35, bar-turning mechanism 32, be passed at last on the outer edge brake shoe 25, outer edge brake shoe 25 forms friction force F Φ with ground, torsion Fa and friction force F Φ form and make a concerted effort, stop drive wheel 29 to slide forward, guarantee safety.Formula is: engine torsion Fa+ friction force F Φ＞slide power F.

Description of drawings:

Fig. 1: drive wheel outer edge mechanical brake device 2 structure principle charts of the present utility model.

Fig. 2: be part enlarged drawings such as stretcher among Fig. 13, hard braking pedal 4, pulley clutch 13, pull bar 34, bull stick 33.

Fig. 3: be retractor device among Fig. 1 14, threaded connection 15, telescopic head 16 detail drawings.

Embodiment: see Fig. 1-2,

The drive wheel outer edge mechanical brake device is characterized in that:

Stretcher 3 turning points are same O1 point in hard braking pedal 4 on the drive wheel outer edge mechanical brake device 2 and the vehicle original hydraulic brake device 1, hard braking pedal 4 is connecting drg 5, mounting spring 6 on the drg 5, hard braking pedal 4 lower ends are equipped with a pulley clutch 13, pulley clutch 13 and change gear 10 upper belt-wheels 11 are by being with 12 to be connected, change gear 10 and connection gear 9 engagements, connection gear 9 and 8 engagements of engine flywheel 7 upper ring gears;

Belt wheel (eccentric wheel) power-transfer clutch 13 connects eccentric pulling bar structure 35, and eccentric pulling bar structure 35 comprises that threaded connection 15 connects telescopic head 16, and telescopic head 16 connects fork 33;

In hard braking pedal 4 bottom end pulling bars 34 retractor device 14 is installed, pull bar 34 connects fork 33, fork 33 is connecting rotary head 17 tops of bar-turning mechanism 32, bearing 19 on the bar-turning mechanism 32 is connected on the self-propelled vehicle crossbeam 28, bar-turning mechanism 32 is connected by spring 18 with bearing 19, bar-turning mechanism 32 is connected by spring 22 with expansion link 21 by its retracting cylinder 20, bar-turning mechanism 32 other ends are connected with outer edge brake shoe 25, outer edge brake shoe 25 is made up of derby 24 outsourcing one deck rubber layers 23, and outer edge brake shoe 25 is placed on the drive wheel outer rim.

Drive wheel outer edge mechanical brake device 2 is installed on one's body the self-propelled vehicle side by side with hydraulic brake system 1.

Principle of work: see Fig. 1, after engine torsion is at first cut off by power-transfer clutch, execute on driver's pin in the hydraulic brake system 1 at the downward braking brake hoof 31 of the power fb on the stretcher 3 and on drum 30, brake, simultaneously, produce fa power on driver's while pin and step on hard braking pedal 4 downwards, being braked device 5 after hard braking pedal 4 stops to hold, this power is through pull bar 34, fork 33, bull stick structure 32, make outer edge brake shoe 25 overcome the power of spring 18, by a (initial point) → b terminal point, be placed between the rubber layer and ground of drive wheel 29 below the car; Simultaneously, hard braking pedal 4 lower end pulley clutch 13 will be with tension, by producing torsion Fa on the flywheel 7, be delivered to through gear 9,10 on the eccentric pulling bar structure 35 of pulley clutch 13, by telescopic head on it 16 torsion Fa is passed to outer edge brake shoe 25 on the Tiebar structure 32, form with joint efforts with ground-surface friction force F Φ with brake shoe 25, stop owing to the anxious drive wheel in a flash of self-propelled vehicle because inertia generation continuing forward to slide power F.Be that Fa+F Φ＞F is sliding.Force drive wheel not slided forward, guarantee safety traffic by anxious stopping in a flash on the e point position.

When self-propelled vehicle did not need to stop, promptly the driver decontroled stretcher 3 with pin, and the driver only need open pin drg 5, makes hard braking pedal 4 revert to original position.The pulley clutch 13 of hard braking pedal 4 lower ends changes its position, combustion cutoff flywheel 7 torsion.Cooperate by threaded connection 15, telescopic head 16 on the eccentric pulling bar structure 35, remove and be applied to thrust Fa on the outer edge brake shoe 25, make outer edge brake shoe 25, finish by bull stick structure 32 and 19 return springs 18 of bearing by terminal point b → initial point a.Can change car into reverse gear, again in order to upper type reduction outer edge brake shoe 25 positions.

This shows that drive wheel is by in c point → m point motion process, the distance L between c point and the d point is driver's reaction distance, and the distance L 1 between d point and the e point is driver's stopping distance; Distance L 2 between e point and the m point produces the coast distance for drive wheel has " leaning forward " phenomenon after suddenly stopping, and the distance L 3 between c point and the e point is the total distance of braking of car, and the e point is the anxious braking point in a flash of drive wheel.

Drive wheel outer edge mechanical brake device acting process: outer edge brake shoe 25 is the drive wheel braking procedure by a point (initial point) → b point (terminal point) process.By b point (terminal point) → a point (initial point) process is reduction process.

The length (G2) of hard braking pedal 4 is slightly larger than the length (G1) of the original hydraulic braking stretcher of vehicle (3).Allow the driver be convenient to discern two class stretchers 3,4.

See Fig. 3, retractor device 14 is to place expansion link 14B in retracting cylinder 14A, two of retracting cylinder outer end cylinder lever connecting rod 34, when pull bar 34 afterbody 34A move forward, its leading section 34B moves forward, and when pull bar 34 afterbody 34A were mobile backward, its leading section 34B did not move, at this moment, the power by spring 18 resets.Threaded connection 15 is that the connecting bridge at two bars connects with engage thread, and purpose is convenient length of regulating eccentric pulling bar structure 35, is beneficial to installation, is beneficial to adjusting.The structure of telescopic head 16 is identical with retractor device 14.

Claims (1)

1, drive wheel outer edge mechanical brake device, it is characterized in that: the turning point of stretcher 3 is the O1 point in hard braking pedal 4 and the vehicle original hydraulic brake device 1, hard braking pedal 4 is connecting drg 5, hard braking pedal 4 lower ends are equipped with a pulley clutch 13, pulley clutch 13 and change gear 10 upper belt-wheels 11 are by being with 12 to be connected, change gear 10 and connection gear 9 engagements, connection gear 9 and 8 engagements of engine flywheel 7 upper ring gears;

Belt wheel (eccentric wheel) power-transfer clutch 13 connects eccentric pulling bar structure 35, and eccentric pulling bar structure 35 comprises that threaded connection 15 connects telescopic head 16, and telescopic head 16 connects fork 33;

In hard braking pedal 4 bottom end pulling bars 34 retractor device 14 is installed, pull bar 34 connects fork 33, fork 33 is connecting rotary head 17 tops of bar-turning mechanism 32, bearing 19 on the bar-turning mechanism 32 is connected on the self-propelled vehicle crossbeam 28, bar-turning mechanism 32 is connected by spring 18 with bearing 19, bar-turning mechanism 32 is connected by spring 22 with expansion link 21 by its retracting cylinder 20, bar-turning mechanism 32 other ends are connected with outer edge brake shoe 25, outer edge brake shoe 25 is made up of derby 24 outsourcing one deck rubber layers 23, and outer edge brake shoe 25 is placed on the drive wheel outer rim.

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