High-temperature sealing type two-lug support plate self-locking nut

Abstract

The invention discloses a high-temperature sealing type two-lug support plate self-locking nut, which comprises a nut body and a sealing cover, wherein the sealing cover is arranged on the outside of the nut body, the nut body comprises a support plate, a closing section and threads, the threads are arranged in the nut body, the bottom of the support plate is provided with a sealing cushion, a sealing ring is sheathed on the outside of the closing section, and the sealing ring and the sealing cushion are respectively made of high-temperature and low-temperature resistance silicon rubber. The self-locking nut has the advantages that the support plate is additionally arranged on the common two-lug floating self-locking nut, the special silicon rubber ring and the sealing cushion are adopted, and the sealing cover, the sealing ring and the sealing cushion are used in a matching way, so the structure is reasonable, the strength is higher and more stable when the self-locking nut is connected with a box body, and the installation reliability is greatly improved; meanwhile, the vibration resistance performance, the loose resistance performance, the high-temperature and low-temperature resistance performance and the corrosion resistance performance are better; and the guarantee is effectively provided for hydraulic systems, pneumatic systems and oil line systems in the fields of aviation, aerospace, ships, railways and the like, the economic benefits and the social benefits are better, and the self-locking nut can be widely applied to the industry of mechanical equipment.

Description

technical field [0001] The invention belongs to the field of mechanical manufacturing, and relates to a mechanical locking device, in particular to a high-temperature sealing double-eared self-locking nut. Background technique [0002] Nut locking is a commonly used mechanical connection method in the prior art. It is widely used in various mechanical industries. Self-locking nuts are often used in structural connections in aviation, aerospace, shipbuilding, high-speed rail and other industries. Ordinary self-locking nuts are deformed through threads. The locking force is generated by this method, and multiple tests are required to maintain the locking force in this locking method, and the high and low temperature resistance performance is poor. However, some sealed self-locking nuts are required in the installation, connection and fastening installation of some box containers. During the installation process, a fastener with high and low temperature resistance and self-lock...

AI Technical Summary

Problems solved by technology

[0002] Nut locking is a commonly used mechanical connection method in the prior art. It is widely used in various mechanical industries. Self-locking nuts are often used in structural connections in aviation, aerospace, shipbuilding, high-speed rail and other industries. Ordinary self-locking nuts are deformed through threads. Locking force is produced by means of this locking method, which requires multiple tests to maintain the locking force, and the high and low temperature resistance performance is poor

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