阅读说明：本技术 一种斜交航空轮胎的成型方法 (A kind of forming method of diagonal aircraft tire ) 是由 赵春峪 王顺益 高香丽 毕晓杰 于 2019-09-04 设计创作，主要内容包括：本发明公开了一种斜交航空轮胎的成型方法,其特征是,包括如下步骤：1)一段成型；2)二段成型。这种方法操作简单,容易实现,这种方法能提高斜交航空轮胎高负荷下的高速度性能。(The invention discloses a kind of forming methods of diagonal aircraft tire, characterized in that includes the following steps: 1) first stage building；2) second stage building.This method is easy to operate, easy to accomplish, and this method can improve the high speed energy under diagonal aircraft tire high load capacity.)

1. a kind of forming method of diagonal aircraft tire, characterized in that include the following steps:

1) first stage building: by the inner liner of diagonal aircraft tire, casingply, steel ring, apex strip, reinforcement glue, tyre bead packet Cloth, sidewall component complete the combination of one section of tire base on conventional molding machines, form one section of tire base；

2) the strengthening course cord of diagonal aircraft tire, various reinforced rubber sheets, tyre surface second stage building: are completed into each portion on balloon Part fitting, forms two sections of fitting parts；One section of tire base that step 1) obtains is filled on second stage building machine using molding laminating drum again Gas is in swelling state to defined outer rim perimeter；Then two sections of fitting parts are made into one section of tire base under inflated condition through rolling Final green tire.

2. the forming method of diagonal aircraft tire according to claim 1, characterized in that strengthening course curtain described in step 2 Cloth width reduces 80mm-200mm than traditional method of forming.

3. the forming method of diagonal aircraft tire according to claim 1, characterized in that form two sections described in step 2 Strengthening course curtain cloth cutting angle in fitting part is in 70 ゜ -80 ゜.

4. the forming method of diagonal aircraft tire according to claim 1, characterized in that form two sections described in step 2 The width of various reinforced rubber sheets in fitting part is 80 mm -200mm, with a thickness of 1.0 mm -2.0mm, wherein widest benefit Strong layer cord width 5 mm -15mm fewer than tread width.

5. the forming method of diagonal aircraft tire according to claim 1, characterized in that described in step 2 most throughout one's life Tire perimeter 60 mm -120mm smaller than tire circumference.

Technical field

The present invention relates to aircraft tyre manufacturing technology, the forming method of specifically a kind of diagonal aircraft tire.

Background technique

The traditional forming method of diagonal aircraft tire is on same molding machine by inner liner, casingply, reinforcement All components such as glue, steel ring, apex strip, strengthening course cord, chafer, sidewall, tyre surface successively form life by construction reference The technical process of tire.In the case where the tooling devices such as existing molding machine, vulcanizer are certain, be usually taken increase body cord, The measures such as strengthening course cord angle improve the high speed energy under diagonal aircraft tire high load capacity.But use traditional molding side Since the severing angle of cord increases, cord extension is restricted extension and does not go out method, and design requirement is not achieved in cord extension, takes turns The physical dimension of tire is also extremely difficult to design requirement, and the raising of tire speed is unobvious, thus be unable to satisfy up to 410km/h with Speed ability requirement under upper high load capacity.

Summary of the invention

The purpose of the present invention is in view of the deficiencies of the prior art, and provide a kind of forming method of diagonal aircraft tire.This Kind method is easy to operate, and easy to accomplish, this method can improve the high speed energy under diagonal aircraft tire high load capacity.

Realizing the technical solution of the object of the invention is:

A kind of forming method of diagonal aircraft tire, unlike the prior art: using post forming method, including walk as follows It is rapid:

1) first stage building: by the inner liner of diagonal aircraft tire, casingply, steel ring, apex strip, reinforcement glue, tyre bead packet Cloth, sidewall component complete the combination of one section of tire base on conventional molding machines, form one section of tire base；

2) the strengthening course cord of diagonal aircraft tire, various reinforced rubber sheets, tyre surface second stage building: are completed into each portion on balloon Part fitting forms two sections of fitting parts, then one section of tire base that step 1) obtains is filled on second stage building machine using molding laminating drum Then two sections of fitting parts are made into one section of tire base under inflated condition through rolling by gas in swelling state to defined outer rim perimeter Final green tire.

The width of strengthening course cord described in step 2 reduces 80mm-200mm than traditional method of forming.

The strengthening course curtain cloth cutting angle formed in two sections of fitting parts described in step 2 is in 70 ゜ -80 ゜.

Described in step 2 formed two sections of fitting parts in various reinforced rubber sheets width be 80 mm -200mm, with a thickness of 1.0 mm -2.0mm, wherein widest strengthening course cord width 5 mm -15mm fewer than tread width.

Final green tire perimeter 60 mm -120mm smaller than tire circumference described in step 2.

The technical program is by increasing strengthening course curtain cloth cutting angle, reducing strengthening course cord width；Strengthening course cord is cut out Angle of rupture degree and tire circumferential direction angle are similar to meridian circumferential direction angle, solve diagonal aircraft tire and are existed using traditional molding methods It takes after improving speed ability measure due to the problem of cord extension is not gone out, standard is not achieved in physical dimension, design requirement, protects The speed ability requirement that 410km/h or more is up under the physical dimension and high load capacity of tire is demonstrate,proved.

The technical program reduces the stress collection that tyre shoulders are excessively generated by material by reducing strengthening course cord width Middle problem；Strengthening course cord width and wheel crown part equivalent width, strengthening course curtain cloth cutting angle are in 70 ゜ -80 ゜, strengthening course curtain Line can improve strengthening course cord to the tightening force of carcass, keep tire circumferential deformation when rolling small, stress point close to circumferential array With more rationally, the high speed performance of tire is preferably played.

Using the molding green tire of the technical program close to finished tire size, strengthening course cord plays better banding and makees With body cord stress is reduced and reinforcement ply stress, rigidity increase, and the extension of strengthening course cord is small, ensure that the outer rim ruler of tire It is very little, guarantee that tire and road surface contact are more preferable, bears concentrated stress caused by road shocks.

This method is easy to operate, easy to accomplish, and this method can improve the high speed under diagonal aircraft tire high load capacity Performance.

Detailed description of the invention

Fig. 1 is the flow diagram of forming method in embodiment.

Specific embodiment

The contents of the present invention are further elaborated with reference to the accompanying drawings and examples, but are not to limit of the invention It is fixed.

Referring to Fig.1, by taking the forming method of 24 × 7.7 12PR TL tires as an example, include the following steps:

1) first stage building: inner liner, casingply, steel ring, apex strip, reinforcement glue, chafer, sidewall component are being passed The combination that one section of tire base is completed on system molding machine, forms one section of tire base；

2) second stage building: strengthening course cord, various reinforced rubber sheets, tyre surface are completed into each component on balloon and are bonded, forms two Section fitting part, then one section of tire base that step 1) is obtained is in swelling state using molding laminating drum inflation on second stage building machine To defined outer rim perimeter, one section of tire base under two sections of fitting parts and inflated condition is then made into final green tire through rolling.

In this example, strengthening course cord width reduces 100mm-140mm than traditional method of forming.

The strengthening course curtain cloth cutting angle formed in two sections of fitting parts in this example, described in step 2 is in 70 ゜ -75 ゜.

This example reinforced rubber sheet width formed in two sections of fitting parts in this example, described in step 2 is 130mm, with a thickness of 1.3 mm, wherein widest strengthening course cord width, 10 mm fewer than tread width.

In this example, final green tire perimeter 60 mm -80mm smaller than tire circumference described in step 2.

In this example, the final molding green tire of the green tire weight ratio tradition method of forming mitigates 0.7kg-1.0kg.

The molding tire lightweight of the example method, by reducing strengthening course cord width, tire weight can be reduced 5-12%, Reduce the manufacturing cost of tire and the rolling resistance of tire.

Pass through FAA Technical Standard Order with the molding civil aviation tire of traditional molding methods, Speed as defined in Aircraft Tires TSO-C62e standard is 362km/h dynamic simulation test, but in equivalent assay conditions It is lower when speed is improved to 380km/h when the 5th is normally taken off damaged tyres, and utilize the molding same specification of the example method Civilian diagonal aircraft tire passes through the dynamic simulation test that speed under equivalent assay conditions is 380km/h, and passes through SAE ARP Speed as defined in 5257-2010 standard is up to the hypervelocity landing experiment of 420km/h, therefore is existed using the molding tire of the example method Speed improves 10-20% under high load capacity, is able to satisfy speed ability requirement under high load capacity.

Using the molding civilian diagonal aircraft tire of the example method, according to the FAA of Federal Aviation management board Technical Standard Order, Aircraft Tires TSO-C62e standard, complete as defined in standard 61 times it is dynamic State simulation test and the tire hypervelocity landing experiment that 420km/h is up to by speed as defined in SAE ARP 5257-2010 standard, Product is completely qualified after tested.