CN2116120U - Brake drum for ventilated blade mobiles - Google Patents

Abstract

The utility model provides a brake drum for a ventilated blade mobile, having a brake drum main body. The utility model is characterized in that a blade is made or connected to the outer wall of the brake drum main body, synthetically utilizing the advantage of increasing heat radiating area and generating wind force to radiate of the blade, causing the brake drum to have good heat radiating performance on the basis of the original function of the brake drum without any changes, overcoming the bad result generated by too high rise of temperature causing by increasing vehicle speed and enlarging braking force, generating wind force for heat dissipation of tyres during running of the vehicle, and improving safety performance, service life, and economic benefit.

Description

Brake drum for ventilated blade mobiles

The utility model relates to automobile-used brake drum technical field.

The wheel drag that uses on the automobile utilizes surface friction drag to produce braking action, extensively adopt drum brake on the truck, it mainly is made of brake drum and brake shoe, its purposes is automobile is slowed down fast or to stop in the shortest distance, to guarantee the safety of automobile running, be the precondition that improves the automotive average travelling speed.At present, continuous progress and development along with auto manufacturing, the power of automobile increases, travelling speed improves, braking system is had higher requirement, for example, the liberation CA141 type automobile that China's First Automobile Works is produced, the front brake lining and the rear brake shoe of its wheel drag are all widened, to improve the working life of friction plate, brake drum is except that widening, also increase thickness, to improve rigidity, the effect that this wheel drag uses from reality, its sensitivity and efficient higher has obtained braking effect preferably.But,, but do not give correspondingly to solve owing to the speed of a motor vehicle improves and the increase of drag friction power causes the brake temperature formed adverse consequences that raises.Particularly in China south or mountain area, the automobile of hills and running on expressway, because landform, the influence of factors such as weather, wheel drag sharply increases because of fricative heat makes its temperature, for example, in automobile lower long slope or abrupt slope, need repeatedly braking, braking force is bigger, the temperature of brake drum surface is scalded to such an extent that can not touch with hand, practical experience according to we driver is found, the wheel braking actuator temperature is too high all to have produced following adverse consequences to vehicle safety travel and use: (1) has aggravated the wearing and tearing of Brake shoe lining and brake drum, reduce working life, can cause Brake shoe lining to be burnt out when serious, brake drum breaks or is out of shape; (2) make the rotten or thawing of car-wheel columella bearing lubrication oil, aggravated the wearing and tearing of bearing, the flow of lubricant after the thawing can reduce friction factor to brake drum, braking force is reduced; (3) brake drum Yin Gaowen splashes to expand braking effect is degenerated, and the driver is forced to stop, treat that temperature descends naturally after, could continue to travel, delayed the time; When (4) the brake drum temperature raise, the temperature of connected automobile tire part also raise, and had quickened the aging and wearing and tearing of tire, caused tyre break when serious.So I think that the wheel braking actuator temperature raises, and not only influence automobile running, and have increased unsafe factor and user cost, this problem will be more and more outstanding.

The purpose of this utility model provide the automobile-used brake drum of improved air-cooled blade type overcome owing to the speed of a motor vehicle improve and braking force strengthen cause the adverse consequences that the rising of drum brake actuator temperature produces, its integrated use blade can increase heat diffusion area and produce the temperature that two principles of wind-force heat radiation reduce drum brake, can obtain effect preferably.

The purpose of this utility model is achieved through the following technical solutions.

The automobile-used brake drum of air-cooled blade type described in the utility model has a brake drum body, is characterized in that the outer wall manufacturing of brake drum body has blade or is connected with blade.

The utility model design proposal preferably is that the blade of brake drum outer wall and brake drum body are cast into one.

The better design proposal of the utility model is that the windward side of the blade of brake drum outer wall and brake drum outer wall surface have an angle α, (30 °＜α≤90 °).

The best design proposal of the utility model is, the blade of brake drum outer wall is that curved shape or helical arrangement are at the brake drum outer wall.

Adopt the automobile-used brake drum of air-cooled blade type described in the utility model, have great social benefit and economic benefit, its advantage is the heat diffusion area that (1) air-cooled blade has not only increased brake drum, and generation wind-force has been accelerated the heat radiation of brake drum, 60 kilometers tests show through driving a vehicle, not improved brake drum surface is very hot, and the brake drum surface after improving only has a small amount of temperature rise, and its radiating and cooling effect is good especially; (2) equally distributed blade ring has strengthened the rigidity of brake drum around the brake drum outer wall as stiffening rib; (3) reduced the generation of problems such as friction plate burns out, brake drum failure by rupture, lubricant oil thawing; (4) air-cooled blade can also produce strong and weak different wind-force with the speed of car speed and dispels the heat to automobile tire, when speed of a motor vehicle quickening, when tire increased because of the heat with the ground friction generation, the wind-force that the brake drum upper blade produces was strengthened equally, heat dispersion strengthens thereupon, can reduce tyre temperature; (5) production technology is simple, and installation, use, maintenance are identical with former brake drum.In sum, will have more safety assurance behind the air-cooled blade type brake drum of installation on the automobile, break and tire longer service life, reliability is bigger, and performance is better, can produce great economic benefit.

With reference to the accompanying drawings the utility model is done and described in further detail.

The automobile-used brake drum schematic side view of the air-cooled blade type of Fig. 1.

The automobile-used brake drum front elevational schematic of the air-cooled blade type of Fig. 2.

The automobile-used brake drum schematic side view of the air-cooled blade type of Fig. 3 helical.

Fig. 1～2nd, a kind of embodiment of the automobile-used brake drum of air-cooled blade type described in the utility model, it has a brake drum body ［ 1 ］, the size of brake drum body ［ 1 ］, specification, the standard of existing various automobile-used brake drums is still selected or kept to technical data such as materials for use, original function with the assurance brake drum is constant, its different characteristics are, outer wall ［ 2 ］ manufacturing in brake drum body ［ 1 ］ has blade ［ 3 ］ or is connected with blade ［ 3 ］, be blade ［ 3 ］ can be with the common casting of brake drum body ［ 1 ］ or at the brake drum outer wall through processing or welding, riveted joint is made, because casting is comparatively simple, be convenient to mass production, so I recommend to adopt casting.The shape of blade ［ 3 ］ can design according to the needs of different automotive brake heat radiations with quantity, the blade of present embodiment ［ 3 ］ is evenly arranged in the brake drum outer wall, there is an angle α windward side ［ 4 ］ of blade ［ 3 ］ with the surface of brake drum outer wall ［ 2 ］, (30 °＜α≤90 °), help forming bigger wind-force like this, so that to break and tire heat radiation.

Fig. 3 is the another kind of embodiment of the automobile-used brake drum of air-cooled blade type described in the utility model, it has a brake drum body ［ 1 ］, the manufacturing of the outer wall ［ 2 ］ of brake drum body ［ 1 ］ has spiral blade ［ 3 ］, there is an angle α windward side ［ 4 ］ of blade ［ 3 ］ with the surface of brake drum outer wall ［ 2 ］, (30 °＜α≤90 °), help forming the air channel like this, be convenient to dispel the heat better.

Claims (4)

1, the automobile-used brake drum of air-cooled blade type has a brake drum body [1], it is characterized in that outer wall [2] manufacturing of brake drum body [1] has blade [3] or is connected with blade [3].

2, the automobile-used brake drum of air-cooled blade type according to claim 1 is characterized in that the blade ［ 3 ］ of brake drum outer wall and brake drum body are cast into one.

3, the automobile-used brake drum of air-cooled blade type according to claim 1 and 2 is characterized in that the windward side and the brake drum outer wall surface of the blade ［ 3 ］ of brake drum outer wall has an angle α, 30 °＜α≤90 °.

4, the automobile-used brake drum of air-cooled blade type according to claim 3, the blade ［ 3 ］ that it is characterized in that the brake drum outer wall be curved or helical arrangement at the brake drum outer wall.