CN201376467Y

CN201376467Y - Special anti-pierce semi-steel tyre for farming machine

Info

Publication number: CN201376467Y
Application number: CN200920019739U
Authority: CN
Inventors: 张元德
Original assignee: Shandong Shuangwang Rubber Co Ltd
Current assignee: Shandong Shuangwang Rubber Co Ltd
Priority date: 2009-03-31
Filing date: 2009-03-31
Publication date: 2010-01-06
Anticipated expiration: 2019-03-31

Abstract

The utility model discloses a special anti-pierce semi-steel tyre for a farming machine, relating to the tyre field. The anti-pierce semi-steel tyre comprises a tyre body, an outer tread integrally combined at the outer circumference of the tyre body and a tyre shoulder. A tyre crown is arranged on the outer tread; a tyre bead wire and a rubber core are arranged at the mouth of the tyre body; and diagonal nylon cords are arranged in the tyre body. A composite steel wire cord laminated structure with equal width with the outer tread is additionally arranged at the joint of the tyre body and the outer tread; a cushion rubber ring is arranged at the joint of the steel wire cord laminated structure and the tyre shoulder; and the steel wire cord laminated structure has 2-5 layers which are alternately superposed to form a multi-layer reticular arrangement with the angle between the layers being 22-38 degrees. The utility model well solves the defect that the old tyres are easy to be pierced and damaged by sharp objects and generally improves the service life of the tyres by 1-3 times with the overall cost only being increased by one fifth to one third. The anti-pierce semi-steel tyre can effectively use the existing manufacturing equipment and is a good substitute for the existing nylon diagonal tyres for the farming machine and has great social and economic benefits.

Description

The anti-puncture half steel tire of farm machinery special use

Technical field

The utility model relates to the anti-puncture half steel tire of a kind of farm machinery special use in the tire field.

Background technology

At present the employed tire of farm machinery normally be framework material with nylon, with the structure of each layer nylon cord oblique stacked system.Because the loading of tire of farm machinery is light, speed slow (with respect to motor tire), it is in light weight that tire requires, and uses air pressure little (300KPa), and tire carcass is thin, and the fitness for purpose nylon yarn layer is below 10 levels.The frivolous structure of this design-calculated tire, advance and the farmland is cultivated etc. in the use at highway, be easy to be worn, have a strong impact on the use of farm machinery tire, and then influence the ordinary production operation of agricultural machinery by punctures such as stone, cullet, pointed agricultural production crop root bundle.Fast development along with agriculture industrialization production; the scale agricultural machinery working progressively replaces agriculture handwork form; the tire of agricultural machinery is also serious day by day by sharp shaped material puncture breakoff phenomenon; cause the short and use cost raising in service life of tire, the anti-thorn that how effectively to solve the farm machinery tire becomes a current urgency difficult problem to be solved.Be that the radial-ply tyre technology and equipment of main structure is able to widespread use with polyester, steel cord in recent years, the production of attempting using it for the farm machinery tire was also arranged.But can not apply because the use condition of road surface of agricultural tyre is more coarse; The radial tyre production equipment investment is big, valuable product, and be used for making the complex process of agricultural tyre crown structure, processing and material cost height also are the major causes that is difficult to apply.

The utility model content

The purpose of this utility model is exactly the defective that exists at prior art, factory in nylon bias tire production does not need to increase on the basis of very big investment, provide a kind of can effectively anti-puncture, improve the anti-puncture half steel tire of the farm machinery special use in service life.

Its technical scheme is: comprise that nylon carcass, integral body are combined in the tread of carcass neighboring, tire shoulder, on tread, be provided with crown, be provided with steel bead wire and glue core in carcass tire oral area position, wherein include the oblique nylon cord in the carcass, have additional and the cooresponding steel-cord ply composite structure of tread width in the joint portion of carcass and tread, at steel-cord ply and tire shoulder joint portion the pad cushion rubber is set, described steel-cord ply is a layer 2-4, and alternately superposeing between each layer forms the netted layout of multilayer of 22-78 ° of angle.

Effect of the present utility model is on the basis of original nylon oblique farm machinery tire construction, increase the alternately steel-cord ply of stack, form netted steel wire floor, overcome the defective that the anti-most advanced and sophisticated thing puncture of original tire damages well, generally improve tire service life 1-3 doubly, and integrated cost only increases 1/5-1/3, and can effectively utilize existing equipment, save the radial-ply tyre cost of investment, economize on resources, be the fine replacement product of existing nylon oblique farm machinery tire, have very high social benefit and economic benefit.

Description of drawings

The cross section structure figure of a kind of specific embodiment of accompanying drawing the utility model.

The specific embodiment:

With reference to accompanying drawing; usually tire is made up of cover tire, the inner tube of a tyre, rim strip three parts; cover tire is made up of tyre surface, carcass, tyre bead; wherein tyre surface is made up of crown, tire shoulder, sidewall; crown is the solid glue-line that the cover tire outermost layer has certain section form; it mainly acts on is that protection body ply and buffering tire are accepted external force, has wear-resisting, anti-skidding, transmission of drive force and tractive force etc.Usually the tire ordinary life is meant what crown wearing and tearing and damage caused.

With reference to accompanying drawing, present embodiment comprises that nylon carcass 4, integral body are combined in the tread 1 and the tire shoulder of carcass neighboring, on tread 1, be provided with crown, be provided with steel bead wire 5 and glue core 6 in carcass tire oral area position, wherein include oblique nylon cord 7 in the carcass, have additional and cooresponding steel-cord ply 2 composite structures of tread width in the joint portion of carcass 4 with tread 1, pad cushion rubber 3 is set in steel-cord ply 2 and tire shoulder joint portion, steel-cord ply 2 is a layer 2-4, and alternately superposeing between each layer forms the netted layout of multilayer of 22-78 ° of angle.

Such scheme is fit to the agricultural tyre specification and comprises: 9.5-24,8.3-24,7.50-16,9.50-20 etc.

Claims

1, a kind of anti-puncture half steel tire of farm machinery special use, comprise that carcass, integral body are combined in the tread of carcass neighboring, tire shoulder, on tread, be provided with crown, be provided with steel bead wire and glue core in carcass tire oral area position, wherein include the oblique nylon cord in the carcass, it is characterized in that: have additional in the joint portion of carcass and tread and the cooresponding steel-cord ply composite structure of tread width, at steel-cord ply and tire shoulder joint portion the pad cushion rubber is set, described steel-cord ply is a layer 2-4, and alternately superposeing between each layer forms the netted layout of multilayer of 22-78 ° of angle.