CN207848266U - A kind of passenger train train reflectal Ceramic Disc Brakes - Google Patents

A kind of passenger train train reflectal Ceramic Disc Brakes Download PDF

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Publication number
CN207848266U
CN207848266U CN201820238541.1U CN201820238541U CN207848266U CN 207848266 U CN207848266 U CN 207848266U CN 201820238541 U CN201820238541 U CN 201820238541U CN 207848266 U CN207848266 U CN 207848266U
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train
brake disc
heat dissipation
cyclic annular
reflectal
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CN201820238541.1U
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魏星
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Shanxi Star Brake Science And Technology Co Ltd
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Shanxi Star Brake Science And Technology Co Ltd
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Abstract

The utility model is related to brake disc manufacturing technology fields, specially a kind of passenger train train reflectal Ceramic Disc Brakes, it is cast iron materials that existing passenger train train, which is solved, with brake disc, and density height, weight weight do not meet lightweight requirements, heat dissipation effect is undesirable, the problems such as influencing braking ability, annular distance is fixed with radiating boss in cyclic annular brake disc ontology, and each radiating boss is distributed on same circumference, radiating boss platform bottom surface is ring plain, and installation slotted eye is opened up in each radiating boss;It is " V " type thermal vias that several groups longitudinal section is opened up on cyclic annular brake disc ontology;Cyclic annular brake disc ontology is the good heat dissipation effect made of aluminum-magnesium alloy material, and aluminum oxide wear layer is added by artificial differential arc oxidation method on rubbing surface.Quality mitigates 60%, improves the safety of bus driving, extends service life, reduces maintenance cost, and service life can be improved 4 times or so, is suitble to the uses such as high ferro, motor-car, car, subway, light rail train.

Description

A kind of passenger train train reflectal Ceramic Disc Brakes
Technical field
The utility model is related to brake disc manufacturing technology field, specially a kind of passenger train train reflectal ceramics Brake disc.
Background technology
Brake disc is also known as brake disc, is the key safety component on passenger train train.Braking system, its purpose is to reach To the braking of locomotive and vehicle, the flow of vehicle braking is made to be:Driver makes electrically-controlled valve to control equalizing reservoir by big lock, relays What valve determined brake pipe by the air pressure in equalizing reservoir again fill exhaust, and when brake pipe is inflated, axle distribution valves control Vehicle brake cylinder is vented, and is alleviated to reach vehicle, when brake pipe exhaust, axle distribution valves are filled to control vehicle brake cylinder Gas, to reach vehicle braking.
Passenger train train braking is exactly artificially to prevent the movement of train, including make its deceleration or out of service.To The train or locomotive of braking release or weaken its braking action, then are known as " alleviating ".It is mounted on row to implement braking and alleviating Equipment set on vehicle, collectively referred to as train " brake apparatus "." braking " and " brake apparatus " is commonly called as " lock ".It is normal to implement braking Referred to as brake application or lower lock are implemented to alleviate and then referred to as be declutched.The technical principle of passenger train train braking is more more complicated than automobile, Passenger train train than automobile speed faster, weight bigger.Automobile tire is with the friction coarse one that ground is rubber and cement A bit, and the wheel of passenger train train with rail be steel and steel friction it is more smooth, it is evident that illustrate rubbing when braking automobile Power is wiped than train bigger.If above 4 points prove braking tire, passenger train train is more difficult to stop than automobile.
Currently, disk brake it be on axle or wheel web side install brake disc, with brake clamp make with Two brake linings made of synthetic material press braking disc side, generate brake force by friction, train is made to halt.Due to making Firmly not on wheel tread, disc braking can mitigate the thermic load and mechanical wear of wheel tread significantly.In addition braking is flat Surely, almost without noise.The friction area of disc braking is big, and can install several sets as needed, and braking effect is apparent Higher than cast iron brake shoe, it is particularly suitable for the bullet train of 120 kilometers of speed per hour or more, this is exactly that various countries generally use disc braking Where reason.Brake disc makes unsprung weight and impact vibration increase, and traction power is consumed in operation.
So-called " locomotive wind pressure " and " tail wind pressure ", the actually application reservoir of total cylinder and vehicle of locomotive Wind pressure.In general the wind pressure of car is 600Kpa, that is, is equivalent to and withstands brake apparatus with the wind pressure of 600Kpa, in brake shoe Keep gap, such train that can just advance with the tread of wheel.And when needing braking, driver raises big lock, reduces 40Kpa Train deceleration is shown as, is acted on by brake apparatus when reducing 160Kpa, brake lining tightly embraces brake disc, that is, stops.Existing iron Road omnibus train cast iron brake disk will produce the longitudinal crack of different length after braking generates high temperature under the action of air-cooled, Security risk is brought to driving, and heat dissipation effect is poor, the heat of brake disc surface has little time to scatter away and lead to brake disc height Temperature, and then harmful effect is generated to braking ability, this is also a great problem in industry.
In addition, the modern times are about the light-weighted technical definition of car:Using modern Design and effective means to vehicle Product optimizes, or using new material under the premise of ensuring comprehensive vehicle performance index, reduces vehicle production as far as possible Product own wt, with reach loss of weight, consumption reduction, environmental protection, safety overall target.According to statistics, if vehicle weight reduces by 10%, combustion 6-8% can be improved in oily efficiency, and the outstanding advantages that lightweight is brought, which are exactly energy consumption, to be significantly reduced.Lightweight can also bring vehicle performance Stability and the promotion for colliding safety.So every country all takes much count of about the light-weighted research of vehicle in the world.Car Lightweight Technology includes the rational design of vehicle structure and the research of lightweighting materials.But existing passenger train train brake disk It mostly uses cast iron materials greatly to be made, cast iron density is high, and heavier-weight does not meet and wants for passenger train train is light-weighted at present It asks.
Invention content
The utility model is cast iron materials to solve existing passenger train train with brake disc, and density is high, weight weight, The problems such as not meeting lightweight requirements, and heat dissipation effect is undesirable, influencing braking ability provides a kind of passenger train train forging Make aluminum alloy ceramic brake disc.
The utility model adopts the following technical scheme that realization:A kind of passenger train train reflectal ceramic brake The innovative point of disk, including cyclic annular brake disc ontology, the utility model is that the interior annular distance of cyclic annular brake disc ontology is fixed at intervals Radiating boss, each radiating boss are distributed on same circumference, and the platform bottom surface of radiating boss is ring plain, in each radiating boss Open up installation slotted eye;It is " V " type thermal vias that interval, which opens up several groups longitudinal section, on cyclic annular brake disc ontology.It is new using this practicality The structure design of type, radiating boss and " V " type thermal vias cooperate, and considerably increase the heat dissipation area of entire brake disc, So that the heat of brake disc is dispersed in time, reduce the thermal expansion phenomenon of brake disc, avoids brake disc that the damage phenomenon such as slight crack occurs, from And the reliability and security of the utility model can be increased, while the setting of " V " type thermal vias described in the utility model, also The overall weight that brake disc can be mitigated, meets lightweight requirements.
In order to advanced optimize the structure of the brake disc, its function is improved, the utility model has also carried out following improvement:
Every group of " V " type thermal vias is mutually communicated and structure by symmetrically arranged left heat dissipation duct and right heat dissipation duct At the outer round mouth in left heat dissipation duct and right heat dissipation duct is symmetrically distributed on cyclic annular brake disc ontology circumferencial direction, interior round mouth phase The platform bottom surface between adjacent heat radiation boss is opened in after friendship.This structure design, positive inverted ventilation in two ducts of " V " type thermal vias Hinder exactly like, heat dissipation effect is ideal.
The left heat dissipation duct center line of every group of described " V " the type thermal vias and the right angle α for radiating duct center line are 10~20 °.The positive and negative windage that this angle design is conducive in two ducts is cancelled out each other, and heat dissipation effect is enhanced.
The cyclic annular brake disc ontology is made of aluminum-magnesium alloy material, and the utility model utilizes the thermal capacitance of aluminium alloy Amount is about the 1/3 of steel, that is, radiating rate 3 times of the material property faster than steel of aluminium alloy, further increases entire brake disc Radiating rate and heat dissipation effect, and almag has density small, lighter in weight, and the feature that intensity is high.
It is wear-resisting that alundum (Al2O3) added by artificial differential arc oxidation method on the rubbing surface of the cyclic annular brake disc ontology Layer.Hardness, the abrasion resistance etc. that brake disc can be improved, further increase the performances such as the wear-resisting of brake disc, high temperature resistant, corrosion-resistant, prolong The service life of brake disc is grown.
The aluminum oxide wear layer thickness is 20~250um.
Compared with prior art, the utility model has the following advantages:
1, radiating boss and " V " type thermal vias cooperate, and considerably increase the heat dissipation area of entire brake disc, make system The heat of Moving plate disperses in time, reduces the thermal expansion phenomenon of brake disc, avoids brake disc that the damage phenomenon such as slight crack occurs, solves The hot tearing problem of cast iron brake disk, improves the safety of bus driving;
2, the setting of " V " type thermal vias and cyclic annular brake disc ontology are made of aluminum-magnesium alloy material, can subtract significantly The overall weight of light brake disc, meets lightweight requirements, can further increase radiating rate and the heat dissipation of entire brake disc in addition Effect, and almag has density small, lighter in weight, and the feature that intensity is high;
3, the platform bottom surface of radiating boss described in the utility model is the brake disc mounting surface on ring plain, with corresponding wheel hub Fitting installation, this can avoid the biasing of brake disc, to increase the service life of the utility model;
4, two duct centerlines of " V " type thermal vias are 10~20 °, and positive and negative windage is exactly like, heat dissipation effect Fruit is ideal;
In short, the utility model good heat dissipation effect, quality mitigates 60%, improves the safety of bus driving, extending makes With the service life, maintenance cost is reduced, service life can be improved 4 times or so, be suitble to high ferro, motor-car, car, subway, light rail train Deng use.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the vertical view of Fig. 1;
In figure:1- ring-type brake disc ontologies;Annular distance in 2-;3- radiating boss;4- platforms bottom surface;5- installation slotted eyes;The left sides 6- dissipate Hot hole road;The right heat dissipation ducts 7-;The outer round mouths of 8-;Round mouth in 9-.
Specific implementation mode
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein Described specific implementation mode is only used for describing and explaining the present invention, and is not intended to limit the utility model.
A kind of passenger train train reflectal Ceramic Disc Brakes, including cyclic annular brake disc ontology 1, are by almag Made of material, the interior annular distance 2 of cyclic annular brake disc ontology is fixed at intervals radiating boss 3, and each radiating boss is distributed in same circle The platform bottom surface 4 of Zhou Shang, radiating boss are ring plain, and installation slotted eye 5 is opened up in each radiating boss;On cyclic annular brake disc ontology It is " V " type thermal vias that interval, which opens up several groups longitudinal section,.
Every group of " V " type thermal vias is mutually communicated by symmetrically arranged left heat dissipation duct 6 and right heat dissipation duct 7 and is constituted, The outer round mouth 8 in left heat dissipation duct and right heat dissipation duct is symmetrically distributed on cyclic annular brake disc ontology circumferencial direction, and interior round mouth 9 intersects It is opened in the platform bottom surface 4 between adjacent heat radiation boss afterwards.The left heat dissipation duct center line of every group of " V " type thermal vias and right heat dissipation The angle α of duct center line is 10~20 °.
Aluminum oxide wear layer is added by artificial differential arc oxidation method on the rubbing surface of cyclic annular brake disc ontology 1.Three The wear-resisting layer thickness of Al 2 O is 20~250um.
When it is implemented, brake disc basis material is almag:Aluminium alloy has density compared with other metal materials Feature small, intensity is high, a diameter of 420mm of casting rod, under expect the length of needs.
Forging method:When being heated to 480-520 °, with 1200 tons of forcing press, the outer diameter for being depressed into needs stops Only.
Solution treatment(Quenching)+ complete artificial aging, can reach highest intensity and hardness, can be used classification it is artificial when Effect:After 450 ~ 480 degree of solution treatment, first in 120 degree of timeliness 6 hours, then it can shorten in this way in 160 degree of timeliness 3 hours again Aging time further increases the resistance to stress ability of alloy.Surface will be made to give birth to by the method for artificial differential arc oxidation after machining At 20-250 microns of aluminum oxide wear layer.
The processing of " V " type thermal vias:The heat emission hole of the aluminium alloy brake disc of forging can not be completed before forging, Zhi Neng After forging bore hole completion is carried out using numerical control borer.The utility model provides a kind of processing method of rational bore angle, Keep positive and negative rotation windage identical, good heat dissipation effect.The heat dissipation area of the utility model can reach 42.7dm, and friction area is 40.02dm.The thermal capacity of almag is about the 1/3 of steel, that is, 3 times faster than steel of the radiating rate of almag.Heat emission hole Area be more than friction area, friction test find, when temperature rise is to 390 °, frictional heat speed and radiating rate tend to Balance continues friction temperature and no longer rises, to ensure that braking ability.

Claims (6)

1. a kind of passenger train train reflectal Ceramic Disc Brakes, including cyclic annular brake disc ontology(1), it is characterized in that cyclic annular The interior annular distance of brake disc ontology(2)It is fixed at intervals radiating boss(3), each radiating boss is distributed on same circumference, and heat dissipation is convex The platform bottom surface of platform(4)For ring plain, installation slotted eye is opened up in each radiating boss(5);It is spaced apart on cyclic annular brake disc ontology If several groups longitudinal section is " V " type thermal vias.
2. a kind of passenger train train reflectal Ceramic Disc Brakes according to claim 1, it is characterized in that every group " V " Type thermal vias is by symmetrically arranged left heat dissipation duct(6)With right heat dissipation duct(7)Be mutually communicated and constitute, left heat dissipation duct and The outer round mouth in right heat dissipation duct(8)It is symmetrically distributed on cyclic annular brake disc ontology circumferencial direction, interior round mouth(9)It is opened in after intersection Platform bottom surface between adjacent heat radiation boss(4).
3. a kind of passenger train train reflectal Ceramic Disc Brakes according to claim 2, it is characterized in that every group " V " The angle α of the left heat dissipation duct center line of type thermal vias and right heat dissipation duct center line is 10~20 °.
4. a kind of passenger train train reflectal Ceramic Disc Brakes according to claim 2 or 3, it is characterized in that cyclic annular Brake disc ontology(1)It is made of aluminum-magnesium alloy material.
5. a kind of passenger train train reflectal Ceramic Disc Brakes according to claim 4, it is characterized in that cyclic annular system Moving plate ontology(1)Rubbing surface on aluminum oxide wear layer added by artificial differential arc oxidation method.
6. a kind of passenger train train reflectal Ceramic Disc Brakes according to claim 5, it is characterized in that three oxidations The wear-resisting layer thickness of two aluminium is 20~250um.
CN201820238541.1U 2018-02-10 2018-02-10 A kind of passenger train train reflectal Ceramic Disc Brakes Active CN207848266U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820238541.1U CN207848266U (en) 2018-02-10 2018-02-10 A kind of passenger train train reflectal Ceramic Disc Brakes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820238541.1U CN207848266U (en) 2018-02-10 2018-02-10 A kind of passenger train train reflectal Ceramic Disc Brakes

Publications (1)

Publication Number Publication Date
CN207848266U true CN207848266U (en) 2018-09-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820238541.1U Active CN207848266U (en) 2018-02-10 2018-02-10 A kind of passenger train train reflectal Ceramic Disc Brakes

Country Status (1)

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CN (1) CN207848266U (en)

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