High-temperature-resisting knuckle bearing for actuator

A kind of joint bearing, high temperature resistance technology, applied in the field of joint bearing, can solve the problem of overheating adhesion between the shaft core and the rod end bushing, and achieve the effect of avoiding high temperature adhesion, ensuring the force strength and improving the service life.

Inactive Publication Date: 2017-01-11
BEIJING POWER MACHINERY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology uses a special type material called mesalium or metal framework instead of traditional materials like steel wire rods used for control valves. It prevents excessive transferring of heat from inside the system due to its porous nature without affecting their function properly. Additionally, this design allows the rod ends to connect directly into an actuation mechanism while maintaining good thermal conductivity. Overall, these technical improvements improve performance and durability over existing designs.

Problems solved by technology

The technical problem addressed by this patented technology relates to improving the performance of joints used on aircraft propellers during extreme temperatures such as those caused by solar radiation without causing damage over time.

Method used

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  • High-temperature-resisting knuckle bearing for actuator
  • High-temperature-resisting knuckle bearing for actuator

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Embodiment Construction

[0016] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0017] as attached figure 1 and 2 As shown, the present invention provides a high temperature resistant spherical plain bearing for an actuator, the spherical plain bearing is composed of a rod end bushing 1 and a shaft core 2, and the shaft core is made of a reticular alloy skeleton 3 and ceramic powder through a high temperature sintering process As a result, the shaft core is embedded in the process channel of the arc-shaped bottom surface of the rod end bushing 1 to form a joint bearing as a whole.

[0018] The mesh alloy skeleton 3 is formed by welding high-temperature alloy wires of different diameters or by 3D printing. The space grid of the mesh alloy skeleton 3 adopts tetrahedron or hexahedron; the ceramic powder is hafnium carbide HfC, zirconium carbide ZrC or tantalum carbide TaC , the ceramic powder and the mesh alloy skeleton are uniformly and

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Abstract

The invention discloses a high-temperature-resisting knuckle bearing for an actuator and belongs to the technical field of structural design. The knuckle bearing is composed of a rod end shaft sleeve and a shaft core. The shaft core is formed by a mesh-shaped alloy framework and ceramic powder through a high-temperature sintering process. The whole knuckle bearing is formed in a process channel of the shaft core embedding rod end shaft sleeve. The mesh-shaped alloy framework is formed by welding high-temperature alloy wires of different diameters or formed through 3D printing, the ceramic powder is hafnium carbide or zirconium carbide or tantalum carbide, the ceramic powder and the mesh-shaped alloy framework are evenly and densely combined, and the whole shaft core is formed. According to the high-temperature-resisting knuckle bearing for the actuator, the stress strength of the knuckle bearing in work can be guaranteed while thermal transmission in the working state is prevented, and the service life of the knuckle bearing can be prolonged.

Description

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Claims

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Application Information

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Owner BEIJING POWER MACHINERY INST
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