Involute and straight claw type rotor structure for oilless vacuum pump

An oil-free vacuum pump and rotor structure technology, applied in the field of involutes, can solve problems such as large vibration and noise, complex processing technology, and short service life, and achieve the goals of reducing vibration and noise, having a long application history, and improving service life Effect

Inactive Publication Date: 2008-12-03
北京依品非标准设备有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, as an indispensable equipment in vacuum technology equipment - vacuum pump, with the rapid development of science and technology, it is constantly updated, and the structural principle is introduced new. The modern new rotor oil-free vacuum pump has incomparable advantages compared with the traditional vacuum pump. For example, in the national patent 99255371.7 and 01232818.9 and other authorized patents, the designer has clearly recorded the main structure and superior performance of the multi-stage double-claw rotor vacuum pump and the oil-free vacuum pump. There are deficiencies, such as large vibration and noise, high temperature rise, high failure rate, short service life, and complex processing technology and other technical problems
The reason is mainly from the structure of the claw-type rotor. In order to obtain good airtightness when the claws are cross-engaged, cycloidal claws that are difficult to process are used, which makes the claw arms sharp and thin. The above-mentioned problems will inevitably occur in the pump, and it is difficult to meet the ideal design principle requirements for this kind of claw processing and testing.

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
  • Involute and straight claw type rotor structure for oilless vacuum pump
  • Involute and straight claw type rotor structure for oilless vacuum pump
  • Involute and straight claw type rotor structure for oilless vacuum pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] From Figure 1, Figure 2, Figure 3, Figure 4 and Figure 5 An example is given: an involute and linear claw-type rotor structure for an oil-free vacuum pump, mainly including a pair of claw-type rotors in a pump body 2 that is cooled by a sealing device 1 and a circulating water channel, and driven by a motor and geared. 3 parts, which are characterized in that each of the vacuum pump chambers contains a pair of suspended claw rotor pairs, and each claw rotor includes a single convex single claw arm 4 that is equally distributed in position and phase, and each single claw arm 4 are all accompanied by an inner concave claw groove 6, and the claws on both sides of the outer convex claw arm 4 are gear involute full-toothed claw arms, and the top surface is a section of the garden arc of the outer circumference of the rotor. Claw groove 6 is that straight line section and claw groove bottom 7 garden arcs constitute, and have used such two claw type rotors in every stage of pu...

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 present invention belongs to the field of vacuum equipment technology. The claw rotor structure includes mainly a claw rotor pair inside pump body with sealer, cooling circular water channel, drive motor and transmission gears. The present invention features one suspended claw rotor pair, and each of the two claw rotor has single claw arm with one concave claw notch. The claw arm has sides in gear involute contour, top in circular arc and claw groove comprising straight line section and arced section. Each pump has two claw rotors, and the claw structure has raised rigidity, smooth running, less vibration and noise, low fault rate and long service life.

Description

technical field [0001] The invention belongs to the field of vacuum technology equipment, and in particular relates to an involute and linear claw rotor structure which can be used for oil-containing or oil-free vacuum pumps or compressors. Background technique [0002] At present, as an indispensable equipment in vacuum technology equipment - vacuum pump, with the rapid development of science and technology, it is constantly updated, and the structural principle is introduced new. The modern new rotor oil-free vacuum pump has incomparable advantages compared with the traditional vacuum pump. For example, in the national patent 99255371.7 and 01232818.9 and other authorized patents, the designer has clearly recorded the main structure and superior performance of the multi-stage double-claw rotor vacuum pump and the oil-free vacuum pump. There are deficiencies, such as large vibration and noise, high temperature rise, high failure rate, short service life, and complex process...

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 Patents(China)
IPC IPC(8): F04C18/14F04C25/02
Inventor 崔殿龙陶朱秋
Owner 北京依品非标准设备有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap