Self-backflow type sealing structure of railway vehicle gear box

A technology of rail vehicle and sealing structure, which is applied to belts/chains/gears, transmission parts, mechanical equipment, etc., can solve the problem that the reliability of sealing cannot meet the requirements of gearboxes, and is not conducive to the lightweight, compact design of gearboxes. The internal pressure of the gearbox increases and other problems, so as to achieve the effect of reliable effect, light and compact structure, and easy maintenance.

Active Publication Date: 2014-10-01
CHANGZHOU RUITAI ENG MASCH CO LTD +1
View PDF9 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above two technical solutions, only four sealing gaps are set, so they are only suitable for urban rail, subway and other occasions where the running speed is not high
As the operating speed of the gearbox increases, the internal pressure of the gearbox also increases relativel

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
  • Self-backflow type sealing structure of railway vehicle gear box
  • Self-backflow type sealing structure of railway vehicle gear box

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Such as figure 1 , 2 As shown, the self-reflux sealing structure of the rail vehicle gearbox of the present invention includes a sealing cover 1 and an oil baffle plate 2 fixed on the box body 4, and a sealing ring 3 fixed on the rotating shaft 5. The sealing cover 1 It has the first flange 1-1 of the sealing cover, the second flange 1-2 of the sealing cover, the third flange 1-3 of the sealing cover, the fourth flange 1-4 of the sealing cover and the oil return gap 1-5 of the sealing cover, A first sealing groove 7 is formed between the second flange 1-2 of the sealing cover and the third flange 1-3 of the sealing cover, and a sealing groove 7 is formed between the third flange 1-3 of the sealing cover and the fourth flange 1-4 of the sealing cover The third seal groove 9; the seal ring 3 has a seal ring first flange 3-1, a seal ring second flange 3-2, a seal ring third flange 3-3, a seal ring fourth flange 3- 4 and the fifth flange 3-5 of the sealing ring, the secon...

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 self-backflow type sealing structure of a railway vehicle gear box. The self-backflow type sealing structure comprises a sealing cap, an oil baffle plate and a sealing ring. The sealing cap is provided with a first sealing cap flange, a second sealing cap flange, a third sealing cap flange, a fourth sealing cap flange, a sealing cap oil return notch, a first sealing groove and a third sealing groove. The sealing ring is provided with a first sealing ring flange, a second sealing ring flange, a third sealing ring flange, a fourth sealing ring flange, a fifth sealing ring flange, a second sealing groove and a fourth sealing groove. A first sealing clearance is formed between the sealing ring and the oil baffle plate, and a second sealing clearance is formed between the sealing ring and the sealing cap. A third sealing clearance, a fourth sealing clearance, a fifth sealing clearance, a sixth sealing clearance and a seventh sealing clearance are formed between the sealing cap and the sealing ring. The second, third and fourth sealing cap flanges and the third, fourth and fifth sealing ring flanges are arranged sequentially along the radial direction. The self-backflow type sealing structure is reliable in sealing and compact in structure.

Description

technical field [0001] The invention relates to a sealing structure for a rotating through part of a gear box lubricated by oil, in particular to a self-reflux labyrinth sealing structure suitable for the rotating through part of a transmission gear box for medium and high-speed rail vehicles, and belongs to the field of rail transportation equipment. Background technique [0002] At present, most of the rail vehicle gearboxes in our country are lubricated with oil. If there is lubricant leakage during the use of the gearbox, it will not only affect the service life of important parts such as gears and bearings in the gearbox, but also cause environmental pollution along the track, and even affect the adhesion performance of the running part of the vehicle. [0003] In the Chinese Patent Publication No.: CN102009663 A, the patent literature titled "Sealing Structure of Urban Rail Vehicle Gearbox" introduces a sealing structure for urban rail vehicle gearboxes. In the patent...

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
IPC IPC(8): F16H57/029
CPCF16H57/029
Inventor 陈亚东胡高华程龙邱彦杰
Owner CHANGZHOU RUITAI ENG MASCH CO LTD
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