Combination type slant wedge

A combined and oblique wedge technology, applied in the direction of railway car body parts, bogies, transportation and packaging, etc., can solve the problem of small relative friction coefficient between main friction surface and column wear plate, wear and tear of key parts of railway vehicles, and relative friction coefficient Oversize and other problems, to achieve good running stability and derailment safety, easy replacement, and improve the effect of anti-diamond stiffness

Inactive Publication Date: 2009-04-01
CRRC QIQIHAR ROLLING CO LTD
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] On the other hand, although some vehicle bogies increase the anti-diamond stiffness of the bogie by widening the wedge, the material of the column wear plate on the side frame of the railway vehicle bogie is all metal materials, and the main friction surface of the wedge is also Metal materials are used, so the friction pair is greatly affected by the environment and the contact surface state of the two metals. On the one hand, the wedge damping device cannot perform the vibration damping function w

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] refer to figure 1 , figure 1 It is a structural schematic diagram of a specific embodiment of the combined wedge provided by the present invention.

[0033] Such as figure 1 As shown, the combined wedge 2 provided in this embodiment includes a wedge main body 21 , a main friction plate 23 and a washer 22 . The wedge main body 21 is a hollow prism structure, and its longitudinal section is roughly a right-angled trapezoidal structure. The wedge main body has a vertical main friction surface 211 and an inclined secondary friction surface 212. The main friction plate 23 is installed on the main surface of the wedge main body 21. on the friction surface 211. A washer 22 is installed between the cam main body 21 and...

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

PropertyMeasurementUnit
Overall widthaaaaaaaaaa
Login to view more

Abstract

The invention discloses a combined tapered wedge used for a steering frame of a railway vehicle, which comprises a main body of a tapered wedge and a main friction board; the main body of the tapered wedge is a hollow prismoid; the body of the tapered wedge is provided with a vertical main friction surface and also provided with an inclined secondary friction surface; the main friction board is arranged on the main friction surface of the tapered wedge; the left side and the right side of the secondary friction surface are provided with a first assistant friction surface; the first assistant friction surface is coplanar with the secondary friction surface and extends to the two sides of the secondary friction surface. The two sides of the secondary friction surface are respectively and fixedly connected with the assistant friction surface which is coplanar with the secondary friction surface, therefore, the shearing moment of the steering frame for resisting diamond deformation is remarkably enlarged, thereby improving the anti-diamond rigidity of the steering frame. The combined tapered wedge can improve the critical velocity of the snakelike instability of the railway vehicle; the rail vehicle can obtain better running stability and digression safety.

Description

technical field [0001] The invention relates to the field of railway vehicle bogies, in particular to a combined wedge used on the railway vehicle bogies. Background technique [0002] The bogies for railway vehicles are equipped with wedges, which generate heat energy through the friction between the wedges and the side frames of the bogies, thereby releasing the vibration kinetic energy of the car body into the atmosphere. It can be seen that the wedges have the function of friction and vibration reduction. [0003] Usually, the existing railway vehicle bogie includes side frames, bolsters, wedges and bolster springs. The lower end of the bolster is assembled on the central frame of the side frames through the bolster springs, and the weight of the railway vehicle is applied to the side frames through the bolsters. on the shelf. The oblique wedge is a friction and vibration damping part. The cross section of the oblique wedge is wedge-shaped, with a vertical main friction...

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): B61F5/50
Inventor 邵文东周国东胡海滨李立东袁忠南
Owner CRRC QIQIHAR ROLLING 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