CN2117498U

CN2117498U - Improved brake lining

Info

Publication number: CN2117498U
Application number: CN 91224407
Authority: CN
Inventors: 陈昆成
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-09-24
Filing date: 1991-09-24
Publication date: 1992-09-30

Abstract

The utility model relates to the improved structure of a braking friction lining. The surface of the friction lining is provided with long slots and a plurality of rows of mutually staggered through holes, wherein, the long slots are communicated with the through holes, and the through holes penetrate through shoe plates. The utility model which is favorable to radiating heat, discharging water, removing chips, and reducing braking noise, and improving braking effect.

Description

Improved brake lining

The relevant a kind of drag friction liner of the utility model is meant a kind of braking effect that increases especially, reduces friction noise and helps the structure of chip removal, draining and ventilation and heat.

Common drag friction liner as shown in Figure 1,11 one-tenth of its lining surfaces are plane, these lining surface 11 sides are bonded with a brake shoes 12; Wherein, this shoe plate 12 is by the light metal mould model, surface 11 is then made by a kind of material that includes some mixtures, and its surface is whole continuous, therefore, when trampling braking mechanism, will actuate the madial wall that makes this friction facing action face braking brake drum, and produce the braking effect that brake drum is stopped operating together with tire.

Above-mentioned known drag friction liner has been gone through many decades, never changes its Mechanical Builds, though it can reach the brake effect, still have following all shortcoming on reality is used, and the utmost point is waited to improve.

(1) because of its friction facing is the continuous structure in a surface, so when acting surface and the subsides of brake drum madial wall are touched, very easily produce slide relative therebetween, it is many to cause braking effect to reduce, particularly use the friction facing after a period of time, easier so, and when producing slide relative therebetween; Not only vehicle brake is dangerous, and prolonged action time, and causes vehicle to produce vibrations and dangerous phenomenon such as skid.

(2) because of its acting surface is that the surface is continuous, so do to paste when touching friction, the friction powder that is come off on the friction facing is difficult to discharge, and folder invests between friction facing and the brake drum, and influences braking effect.

(3) be that the surface is continuous because of its acting surface, so as water inlet accidentally, or drench with rain (especially in the area of heavy rainfull), or carwash and cause its friction facing humidity, brake will be temporarily malfunctioning and be influenced traffic safety, in brief, the drainage performance of promptly known drag friction liner is relatively poor, so that has influence on braking effect.

(4) because of its acting surface is that the surface is continuous, so the madial wall of acting surface and brake drum pastes when touching, there is no any slit and exist, so that if sending the friction sound just is difficult to distribute, so promptly there is brake noise to produce.

The drag friction liner that provides a kind of drainage performance, chip resistance and ventilation and heat good is provided main purpose of the present utility model, to promote braking effect.

And the lining surface that is characterised in that of the present utility model has the interlaced some through holes of plurality of rows, with be attached thereto logical elongated slot, and this through hole runs through shoe plate, is beneficial to ventilation and heat, draining, chip removal and reduces brake noise, and can promote braking effect.

With reference to the accompanying drawings the utility model is described.

The simple declaration of accompanying drawing:

Figure 1 shows that known drum brakes friction facing stereogram.

Figure 2 shows that the utility model embodiment's stereogram.

Figure 3 shows that the utility model embodiment's sectional view.

See also Fig. 2,3, be respectively the utility model embodiment's stereogram, sectional view, the utility model surface 20 has the interlaced some through holes 21 of plurality of rows (promptly more than two rows), and the elongated slot 22 that is connected with described through hole 21; Wherein, this through hole 21 runs through shoe plate 30, and elongated slot 22 then gos deep into surface about 1/2nd.

Therefore, according to above-mentioned feature as can be known, the surface 20 of the utility model drag friction liner, owing to have interlaced some through holes of plurality of rows 21 and elongated slot 22, so its lining surface 20 forms a male and fomale(M﹠F), and be different from known surperficial continuous structure, therefore, can make the utility model on brake is used, possess following all advantage and effect at least:

(1) braking effect of brake drum and drag friction liner is preferable: when brake, the bits grain that is come off is unlikely and sandwiches therebetween, can prevent that both surface of contact from becoming point or line friction, and then increase its braking effect.

(2) chip resistance is preferable; Because the acting surface of friction facing is male and fomale(M﹠F), therefore, when brake, lining surface 20 and the powder that the mutual friction mutually of brake drum madial wall is produced can scatter to through hole 21 from elongated slot 22, can discharge smoothly and rapidly, and the unlikely braking effect that influences.

(3) drainage performance is preferable; Because the utility model lining surface 20 has the through hole 21 and elongated slot 22 that is connected, and this through hole 21 runs through shoe plate 30 again; Therefore, drenched with rain, paddle or carwash when causing humidity when friction facing, its moisture can be flowed out by elongated slot 22 via through holes 21 rapidly, thus can reach preferable drainage effect, and then improve traffic safety.

(4) can reduce brake noise; Because the utility model not only has the through hole 21 and elongated slot 22 that is connected at lining surface 20, and through hole 21 runs through shoe plate 30; Therefore, when lining surface 20 touched friction with the subsides of brake drum do when braking, the generation of generating heat creaked ... the brake noise that creaks, can see through through hole 21 by the elongated slot 22 of this lining surface 20, and give out, subduing, and then reach the effect that reduces brake noise to minimum.

(5) has preferable result of ventilating heat dissipation.

In sum, the described concrete structure of the utility model embodiment really can accomplish the end in view, and improves braking effect.

Claims

A kind of improved drag friction liner is characterized in that lining surface has the interlaced some through holes of plurality of rows and is attached thereto logical elongated slot, and wherein, this through hole runs through shoe plate, in order to draining, chip removal, so that can promote braking effect.