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Inner supporting body for run-flat tire

An inner support, run-flat technology, applied in tire parts, transportation and packaging, vehicle parts, etc., can solve problems affecting vehicle safety and comfort, increase environmental burden, reduce service life, etc. Smoothness, improved safety and comfort, low density effect

Active Publication Date: 2010-06-09
NO 52 INST OF CHINA NORTH IND GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In recent years, some internal support systems for run-flat tires have been proposed. These technologies are disclosed in documents such as Chinese Patent Nos. 200810134123.9, 200410078083.2, 200410103614.9 and 200510055537.9. Due to the disadvantages of low rigidity, poor heat resistance, and easy aging failure, this kind of material not only reduces the service life, but also seriously affects the safety and comfort of the vehicle, and the inner support made of this kind of material is mostly used Thick and complex structural forms run counter to the current goal of reducing weight and consumption in the automotive industry, and increase production costs
At the same time, the use of such materials is not conducive to recycling, which will greatly increase the environmental burden, and further improvement is needed

Method used

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  • Inner supporting body for run-flat tire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] This embodiment describes the joint structure of the butt-joint magnesium alloy inner support body. The structure of the butt joint inner support body is as follows: image 3 As shown, its connectors include lock block 7, bolt 8, lock ring 9 and special nut 10 (such as Figure 4 , 7 , 8, 9, 10, 11), the connectors are prepared with 45# steel, the butt joint 2 is provided with a lock ring groove 11 corresponding to the lock ring 9, the above lock ring 9 and the lock The distance between the sides of the ring groove 11 is 5mm, so as to ensure that the lock ring 9 is convenient for positioning and installation, and at the same time avoid the collision between the two during use and affect the safety and comfort of the system. The contact surface of the lock ring 9 and the lock ring groove 11 passes through Tolerance matching dimensions ensure smooth installation. The lock ring 7 is provided with a bolt hole 12 and a lock block hole 13. The opposite joint is respectively ...

Embodiment 2

[0041] This embodiment describes the joint structure of the lap-joint magnesium alloy inner support body.

[0042] The joint structure of the lap joint inner support body is as follows: Figure 14 As shown, the connectors include lock blocks 7, bolts 8 and special nuts 10 (such as Figure 7 , 8 , 9, 10, and 11), the connecting piece is prepared by 45# steel, and one split joint 2 that fits each other has a fitting surface 14 corresponding to the other split joint 2, and the The joints of the fitted joints 2 touch face to face, and the overall rigidity is better after tightening. The above-mentioned mutually fitted joints 2 are also provided with a locking block hole 15 corresponding to the locking block 7, and the locking block 7 is inserted into the locking block hole 15, the above-mentioned lock block 7 is provided with a bolt hole, and the two splits pass through the bolt hole at the lock block 7 through the bolt 8 and are connected and fixed with a special nut 10. Conne...

Embodiment 3

[0044] This embodiment describes the joint structure of the plug-in magnesium alloy inner support body.

[0045] The structure of the plug-in inner support body joint is as follows: Figure 15 As shown, the connectors include lock blocks 7, bolts 8 and special nuts 10 (such as Figure 7 , 8 , 9, 10, and 11), the connecting piece is prepared by 45# steel, a slot 18 is provided at 2 of the split joints that are inserted into each other, and a slot 18 is provided at 2 of the other split joints corresponding to the slot 18. The protruding fast 19, the contact surface 17 of the joint joints that are inserted into each other has a larger area, and the overall rigidity is better after tightening. The above-mentioned joints 2 that are inserted into each other are also provided with a lock block hole 15 corresponding to the lock block 7. The lock block 7 is put into the lock block hole 15, and the above lock block 7 is provided with a bolt hole, and the two splits pass through the bo...

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Abstract

The invention discloses an inner supporting body for a run-flat tire, which is characterized in that: the inner supporting body is made of a magnesium alloy serving as a raw material, and adopts a two-block split structure; the split parts comprise a main body and a joint respectively; and the joints between the split parts are connected by a connection piece. The inner supporting body has the advantages of high rigidity, good heat stability and light weight, and the inner supporting body adopts the magnesium alloy to improve the radiating condition fundamentally, prevent rubber and engineering plastics from softening due to quick and massive deformation, eliminate the ,thermal explosion, phenomenon in the process of using the inner supporting body, improve the safe driving distance after a vehicle has a flat tire, and prolong the service life.

Description

technical field [0001] The invention relates to an inner support body for a tubeless run-flat tire based on a standard rim and a special rim. Background technique [0002] The run-flat technology of tires is a new technology developed by some foreign tire companies in recent years. The use of run-flat tires on automobiles can effectively reduce traffic accidents caused by tire blowouts. Therefore, run-flat tires are gradually It has become a standard configuration of many high-end cars, sports cars and military vehicles in the world. [0003] Run-flat tires are divided into double-cavity type, self-sealing type, self-supporting type, and auxiliary support type according to the structure, and are divided into ordinary (standard) rim type and special (non-standard) rim type according to the matching rim. Among them, the rigid inner support technology is one of the main technical means for manufacturing run-flat tires due to its relatively simple structure, wide application ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C17/04
Inventor 王进华杨波邢志媛王有祁侯立群朱秀荣龚朝辉郑顺奇裴政齐伟光李卿
Owner NO 52 INST OF CHINA NORTH IND GRP CORP
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