A kind of airless tire and its production process

Abstract

The invention relates to an airless tire and its production process. The main body of the tire is molded by pouring polyurethane rubber, and the inner support is placed in the main body of the tire; Positioning in the circumferential direction; the hub is made of aluminum alloy, one side of which is a raised edge rib structure, which is used for axial positioning of one side of the tire body, and the other side of the hub is connected by bolts There is a cover plate; the cover plate compresses the main body of the tire to the hub. The production process of the airless tire includes the pouring process of the tire body and the assembly process of the tire body and the wheel hub. In this application, the tire body is integrally molded by polyurethane rubber casting, and the inner support is cast in the tire body. The fully enclosed and wrapped tire body is close to the shape of the existing pneumatic tire, but it is safer and more reliable than the pneumatic tire, with high strength and wear resistance. Good performance, long life, suitable for large-scale automated production and processing.

Description

technical field [0001] The invention relates to the technical field of tires, in particular to an airless tire and its production process. Background technique [0002] At present, most of the tires used on vehicles are pneumatic tires. Pneumatic tires maintain the tire shape and obtain cushioning performance by filling compressed air into a closed space. It is difficult to maintain the original tire shape, which affects the safety of vehicles. In addition, there is a risk of tire blowout in pneumatic tires, especially in the event of a tire blowout on a vehicle traveling at high speed on the expressway, serious traffic accidents will occur. [0003] In order to solve this problem, airless tires are gradually being developed and put on the market. Airless tires are tires that do not rely on air to achieve support. They do not need to be inflated and are not afraid of punctures. , and can save a lot of rubber material. For example, the patent whose authorization announcemen...

AI Technical Summary

Problems solved by technology

For example, the patent whose authorization announcement number is CN106541785B, the patent whose authorization announcement number is CN106541784B, the patent whose authorization announcement number is CN106515313B and the patent whose authorization announcement number is CN106739817B all disclose a kind of airless tire in these four patents. Pneumatic tire comprises rubber tread and wheel spoke, and described rubber tread is sleeved on described wheel spoke, and described wheel spoke comprises wheel spoke outer circle, wheel spoke middle circle and wheel spoke inner circle, and described wheel spoke outer circle passes outer spoke and described wheel spoke The inner ring of the spokes is fixedly connected, and the middle ring of the spokes is fixedly connected with the inner ring of the spokes through the inner spokes. The difference between the four patents lies in the arrangement of the outer spokes and the inner spokes. Reliability, and can ensure that braking and acceleration do not lag at the same time, but the outer spoke ring is fixedly connected to the middle spoke ring through the outer spokes, and the middle spoke ring is fixedly connected to the inner spoke ring through the inner spokes. This airless tire has insufficient cushioning force Shortcomings

[0004] In addition, the patent of CN106696605B with the authorized notification number discloses an airless tire, which includes a rubber tread and a spoke. The outer ring of the spokes is fixedly connected to the inner ring of the spokes through the radial spokes, and X-shaped auxiliary spokes are also arranged between any two adjacent radial spokes, which also has the problem of insufficient tire cushioning force. Disadvantages, in addition, the structure is complex and the processing technology is cumbersome

The patent with authorized notification number CN106515312B discloses an airless tire. The spokes connected between the spoke outer ring and the spoke inner ring have a grid structure, which also has the disadvantages of insufficient tire cushioning force, complex structure, and cumbersome processing technology. , when one of the grid spokes breaks, it will greatly affect the bearing capacity of the entire grid spokes, seriously affecting the service life of the tire

Images