Method for reducing warping of a wheel brake disc for a rail vehicle and device for carrying out the method

A technology for rail vehicles and brake discs, applied in the directions of brake discs, brake components, brakes with pressurized braking surfaces, etc., to reduce inherent stress and improve the repeated assembly rate

Active Publication Date: 2021-09-28
KNORR BREMSE SYST FUR SCHIENENFAHRZEUGE GMBH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0009] The problem is that the warping of the wheel brake disc exceeds a certain size which cannot be reduced by turning the outer diameter (überdrehen) to such an extent that a flat friction surface can be achieved by screwing the wheel brake disc on

Method used

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  • Method for reducing warping of a wheel brake disc for a rail vehicle and device for carrying out the method
  • Method for reducing warping of a wheel brake disc for a rail vehicle and device for carrying out the method
  • Method for reducing warping of a wheel brake disc for a rail vehicle and device for carrying out the method

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Embodiment Construction

[0044] In the following description of the drawings, terms such as upper, lower, left, right, front, rear, etc. only refer to the wheels, brake discs, outer rings, inner rings, upper pressure plates, etc. selected in the corresponding drawings. Exemplary illustrations and locations of . These terms are not to be interpreted as restrictive, which means that these references can change due to different working positions or a mirror-symmetrical design, etc.

[0045] In the method according to the invention, after determining the deviation of the friction surface of the wheel brake disk from a plane defined by the circumferential edges of the friction surface, the friction surface of the wheel brake disk is permanently restored to the surface defined by the circumference of the friction surface. in the plane defined by the edge.

[0046] As "deviation of the friction surface of the wheel brake disc from the plane determined by the circumferential edges of the friction surface", h...

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Abstract

The invention relates to a method for reducing the warping of a wheel brake disc for a rail vehicle due to the braking process, in the determination of the friction surface of the wheel brake disc and the plane defined by the circumferential edges of the friction surface After the deviation, the friction surface of the wheel brake disc is permanently restored to the plane determined by the circumferential edge of the friction surface. The method comprises the steps of: a) placing the wheel brake disc in the lower pressure plate; The upper pressure plate is lowered onto the radially inner part of the friction surface of the wheel brake disc until the radially inner part of the friction surface of the wheel brake disc deforms back into the plane defined by the circumferential edges of the friction surface ; prior to step a), the lower pressure plate is oriented such that the bearing surface of the lower pressure plate forms a groove opposite to the warping of the wheel brake disc, the depth of which depends on the friction surface of the wheel brake disc The deviation of the plane determined by the circumferential edge of the friction surface is adjusted. The invention also relates to a device for carrying out the method.

Description

technical field [0001] The invention relates to a method for reducing the warpage (hot spot: schirmung) of a wheel brake disk for a rail vehicle that occurs as a result of the braking process. Furthermore, the invention relates to a device for carrying out such a method. Background technique [0002] Such a wheel brake disc for a rail vehicle is fastened on both sides of a rail wheel of the rail vehicle by a plurality of through bolts distributed in the circumferential direction. [0003] The wheel brake disc is held on the wheel body through a threaded connection structure. [0004] In particular during so-called emergency braking, the temperature of the wheel brake disc increases strongly, which leads to dish-shaped deformation of the brake disc. Such deformation behavior is also called warping. Such a warping of the wheel brake disc can lead to thickness fluctuations, which should be avoided as far as possible, or locally high thermal loads after a relatively long oper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61H5/00F16D65/12
CPCB61H5/00F16D65/124F16D2250/0023F16D65/12
Inventor C·莫斯巴赫B·黑默尔M-G·埃尔斯托尔普夫T·福尔克
Owner KNORR BREMSE SYST FUR SCHIENENFAHRZEUGE GMBH
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