CN107539042A

CN107539042A - A kind of falling temperature technique of racing-car tyre

Info

Publication number: CN107539042A
Application number: CN201610511407.XA
Authority: CN
Inventors: 蒋宇飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-06-27
Filing date: 2016-06-27
Publication date: 2018-01-05

Abstract

The invention discloses a kind of falling temperature technique of racing-car tyre, including vehicle body and tire, its technical characteristic is：Vehicle body carries the liquid nitrogen container containing electric-controlled switch, and logical four delivery pipes of liquid nitrogen container connect the row pattern puff prot of the top of each tire.The puff prot has a certain distance with surface of tyre.Advantages of the present invention：It is that whole can effectively offset F1 racing-car tyres caused heat energy in traveling rubs first, suppresses rising of the F1 racing-car tyre temperature in match, extend the replacing number for using mileage, reducing F1 racing-car tyres of F1 racing-car tyres, valuable time is taken to win the championship to win.Next to that the coefficient of expansion that liquid nitrogen is changed into gas is big, thus the carrying of liquid nitrogen container is insignificant for the weightening of F1 racing cars, will not form substantial effect to match speed.In addition it is due to that injection nitrogen is carried out in match, thus is not contradicted with the insulation of pre-games tire.

Description

A kind of falling temperature technique of racing-car tyre

Technical field

The present invention relates to a kind of racing-car tyre falling temperature technique, is related specifically to a kind of falling temperature technique of F1 racing-car tyres.

Background technology

Tire is one of important component of automobile, and it is directly contacted with road surface, and automotive suspension relaxes garage jointly Suffered impact when sailing, ensure that automobile has good driving comfort and ride performance；Ensure that wheel and road surface have well Tack, improve traction property, braking and the passing through property of automobile；The weight of automobile is subject, what tire rose on automobile Important function is increasingly valued by people.

Improve Vehicle Speed, particularly often in fast running when, the service life of tire significantly reduces.Because During vehicle fast running, tire is more with the frequency of exposure on ground within the unit interval, and friction is also more frequent, makes the change of tire The increase of shape frequency.At this moment the circumferential and lateral caused torsional deformation of carcass also increases therewith.When speed reaches critical speed, tire There is wave transformation in the vibration on hat surface, forms static ripple.This static wave energy causes tire quick-fried after it produces a few minutes Broken, this is due to that squeegee action has little time to restore caused hysteresis loss, and its size is relevant with the time that load acts on, Speed is faster, and the time is ultrashort, and most kinetic energy, which is absorbed, is transformed into heat, so that tyre temperature raises, ageing of rubber adds The endurance life of speed and cord ply reduces, tire thus come to nothing in early days or explosion, therefore, limitation road speed is extremely important 's.

But the tire of F1 racing cars is just different.F1 racing cars be single seat big-and-littles, cockpit be it is open outside, it is huge Big tire is also an exposure to outside vehicle body, and no beater or beat-up blocks.F1 racing cars can not travel in ordinary road, in automobile The streamline of factory does not also produce, but by each racing car company or depot motor sport portion it is individually designed and manufacture.F1 racing cars Starting speed is no less than " hornet " fighter plane, to there is so high speed, bypass kinetic factor, maximum contribution surely belongs to F1 The special tyre of racing car.So compared with above-mentioned tire, it is different what F1 racing slicks haveCivilian tire can be with several Ten thousand kilometers, and the projected life of F1 racing slicks is 120 kilometers (although having made special technology processing).

World's Formula 1 Race is the automobile race of world today's highest level, year audience ratings be up to 600 Hundred million person-times.F1 is the top race in racing car, and F1 races can be described as the race for most allowing racing driver to regard it as an honour.F1 racing cars What ratio isRatio is speed, than be re-type.

For motor sport, the time is the key got the upper hand of.To strive on racing track 1 second it is very difficult, so each second time All it is of great value.How rapider re-type, turn into the required problem of every racing car team.F1 enters maintenance area only under normal circumstances If changing tire, the time is 4 seconds.Most quick change tire speed only needs 1.8 seconds in the world at present.Change tire speed mainly have soon it is following Factor：First is car wheel structure, all racing cars including F1, as long as unloading next central bolt can pulls down wheel, and is put down Normal vehicle needs to tear open 5-6.Second is instrument, is all normally to use air pump in the 4S shops of civilian vehicle, indivedual relatively Out's Also twisted with hand, F1's is pneumatic, but the moment of torsion of that air pump and rotating speed are all custom-mades, need not change tire work at all at which Youngster is twisted with hand again after screwing on to be looked at either with or without tightening, once upper, moment of torsion is necessarily just, it is also necessary to is just.The Third, artificial, F1 tire work of changing all is by special training, and changes a tire, it is necessary to 14 people, four tires, each Three people of tire are served, an operation air pump assembling-disassembling bolt, and one is unloaded one dress tire of tire, and two people one in front and one in back operate in addition Crowbar.

We are frequently seen in F1 race television relays, and during F1 racing cars, re-type is the usual thing of part.Change Tire is to ensure that the necessary means of normal play, but is also the bottleneck for restricting game tempo simultaneously.All the time, this bottleneck from Just not broken by people.It is known that champion, sometimes only than second place's progress so little by little.Obviously, in order to more so Point, we should consider that the cooling problem of tire (is also intended to be included in the match used time, by counting each car because changing the tire time The time can for changing tire is substantially inferred to the time lost or recaptured during tire is changed).

The content of the invention

The task of the present invention is to propose a kind of falling temperature technique of F1 racing-car tyres, to solve the above problems.

Cool on tire, also there is the elaboration of correlation at present.Some ling-distance trucks also have water tank and rubbed with water pipe spray To the tire of heat.But, the security incident for spraying the generation blast of high fever tire happens occasionally.This is somewhat similarly to burn aglow Watt pot adds cold water suddenly, and " fried " be not just strange.Therefore, the automatic falling temperature technique of tire has caused the great attention of people, technology wound Newly emerge in an endless stream.But either using what technical scheme, " refusal " high fever is watered, and this is everybody common recognition.However, one The problem of severe, is but put in face of people：Water spray needs water storage, water storage increase car weight, and weightening causes oil consumption, and oil consumption increases Cost.So, how to solve this problem

The above-mentioned falling temperature technique for belonging to civilian tire.So, how F1 racing-car tyres coolUsing liquid nitrogen spray wheel Tire.

Liquid nitrogen：The nitrogen of liquid.It is inert, colourless, odorless, non-corrosiveness, non-combustible, temperature is extremely low.Nitrogen constitutes (volume ratio 78.03%, weight is than 75.5%) for the major part of air.Nitrogen is inactive, does not support to burn.

At ambient pressure, liquid nitrogen temperature is -196 DEG C；1 cubic metre of liquid nitrogen can be expanded to 696 cubic metres 21 DEG C of pure gas State nitrogen.

Because the temperature of liquid nitrogen is very low, thus less heavy so sub-fraction is carried with regard to carrying out whole drop to tire enough Up to the completion of F1 races, (F1 racing-car tyre pre-games needs to be incubated temperature.Heating is just not intended in match).

A kind of falling temperature technique of F1 racing-car tyres, including vehicle body and tire, its technical characteristic be：Vehicle body is carried containing automatically controlled The liquid nitrogen container of switch, logical four delivery pipes of liquid nitrogen container connect the row pattern puff prot of the top of each tire.The puff prot and wheel Tire surface has a certain distance.

Advantages of the present invention and good effect：It is that whole can effectively offset F1 racing-car tyres to be produced in traveling rubs first Raw heat energy, suppress rising of the F1 racing-car tyre temperature in match, extend F1 racing-car tyres uses mileage, reduces F1 racing car wheels The replacing number of tire, valuable time is taken to win the championship to win.Next to that the coefficient of expansion that liquid nitrogen is changed into gas is big, thus liquid nitrogen container Carrying it is insignificant for the weightening of F1 racing cars, will not to match speed form substantial effect.In addition it is due to injection nitrogen It is to be carried out in match, thus is not contradicted with the insulation of pre-games tire.

Embodiment

The course of work：When F1 racing cars enter dramatic match, liquid nitrogen container electric-controlled switch is pressed immediately jet is carried out to tire Cooling.

Claims

1. a kind of falling temperature technique of racing-car tyre, including vehicle body and tire, its technical characteristic are：Vehicle body is carried containing electric-controlled switch Liquid nitrogen container, logical four delivery pipes of liquid nitrogen container connect the row pattern puff prot of the top of each tire.The puff prot and tire table Face has a certain distance.