Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Gear indexing assembly of sextant

A technology of tooth assembly and sextant, applied in sextant and other directions, can solve the problems of large deviation of precision measurement, influence of measurement effect, increase of meshing gap, etc., so as to improve accuracy, improve wear resistance and reduce wear and tear. gap effect

Inactive Publication Date: 2014-01-01
CHANGZHOU HAOMAI MARINE EQUIP TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing worm gear is made of alloy aluminum, and its center bearing is made of copper structure, which is easy to wear during meshing, resulting in increased meshing gap, which not only has a large deviation in precision measurement but also affects the measurement effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Gear indexing assembly of sextant
  • Gear indexing assembly of sextant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] See figure 1 and figure 2 As shown, a sextant tooth assembly has a dial 1 and a central bearing connected to the dial 1, and a sliding groove 2 with a sawtooth structure is located at the edge of the dial 1, and its surface has A wear layer of tin bronze.

[0012] The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a gear indexing assembly of a sextant. The gear indexing assembly is provided with a dial and a central bearing connected with the dial, the edge of the dial is provided with a sliding groove which is of a sawtooth structure, and the surface of the sliding groove is provided with a wear-resisting layer. Therefore, the wear resistance of a rack can be improved, and the abrasion clearance is reduced, thus the measurement error is reduced, and the accuracy is improved.

Description

technical field [0001] The invention relates to a nautical surveying and mapping instrument device, in particular to a toothed component of a sextant. Background technique [0002] In the field of navigation, a sextant is an optical instrument commonly used to measure the angle between two distant targets. It is usually used to measure the angle between the sun or other celestial bodies and the sea level or horizon at a certain moment, so as to quickly know the latitude and longitude of the position of the ship or aircraft. The existing worm gear is made of alloy aluminum, and its central bearing is made of copper structure, which is easy to wear during meshing, resulting in increased meshing clearance, which not only has a large deviation in precision measurement, but also affects the measurement effect. Contents of the invention [0003] The purpose of the present invention is to solve the above existing problems, and provide a sextant gear assembly with simple structur...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01C1/08
CPCG01C1/08
Inventor 朱亮狄丹岩
Owner CHANGZHOU HAOMAI MARINE EQUIP TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com