Disc brake for a rail vehicle
A technology for disc brakes and rail vehicles, applied in the direction of brake type, axial brake, brake components, etc., which can solve the problems of releasing a large amount of fine powder, reducing efficiency, and reducing braking noise.
Pending Publication Date: 2022-05-31
科弗伦有限公司
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0008] Many solutions that lead to a reduction in brake noise suffer from the disadvantage of a low transmission of braking force from the brake pads to the disc, and therefore a reduced efficiency of the braking itself
[0011] Often, solutions that result in reduced brake noise have the disadvantage of requiring a large release of fines
Method used
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Embodiment Construction
[0029] exist image 3 , the reference numeral 1 as a whole denotes a brake pad for a disc brake according to the present invention.
[0030] The brake pad 1 comprises: a base plate 2; a dovetail connection 3, which is attached to the rear surface of the base plate 2 and is responsible for the structure of attaching the brake pad 1 itself to the disc brake; and a plurality of friction elements 4, which are attached to the base plate 2 and arranged to apply pressure to the brake disc to perform the braking action.
[0031] For the purposes of the present invention, it is immaterial that the friction element 4 may be attached to the plate 2 temporarily or permanently.
[0032] The friction elements 4 are arranged along an arched row shown in dashed lines and denoted by the reference numeral 5, which in use substantially overlaps the concentric lines of the brake disc D on which the brake pad 1 acts. For simplicity, the brake disc D is shown in dashed lines and only partially. ...
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Abstract
The invention relates to a disc brake for a railway vehicle. The disc brake comprises a brake pad (1) and a brake disc (D) on which the brake pad (1) acts, the brake pad (1) comprises a bottom plate (2) and a plurality of friction elements (4) fixed on the bottom plate (2); the friction elements (4) comprise a first friction element (4b) made of a first material and a second friction element (4a) made of a second material; the disc brake is characterized in that the compression modulus of the second material (the pressure required to compress the material by 1 mm) is less than the compression modulus of the first material by a value of 5 MPa or more; the number of the first friction elements (4b) is greater than the number of the second friction elements (4a).
Description
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This patent application claims priority from Italian Patent Application No. 102020000028781 filed on November 27, 2020, which is incorporated herein by reference in its entirety. technical field [0003] The present invention relates to a disc brake for rail vehicles. In particular, the present invention has advantageous, but not exclusively, application in low- and medium-speed rail vehicles. Background technique [0004] As we all know, disc brakes are subject to a lot of pressure, and in order to obtain the best braking effect, the braking force must be well transmitted from the brake pads to the brake disc. [0005] For some time now, the field has been working on the use of brake pads comprising multiple smaller sized friction elements in place of larger sized single friction elements. One solution adopted in this regard is to require that each brake pad consists essentially of a main base plate and a number of f...
Claims
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IPC IPC(8): F16D69/02C09K3/14
CPCF16D69/02C09K3/14F16D2200/0008F16D2200/0026F16D2200/0052F16D2200/0034F16D65/0006F16D2069/002F16D65/00F16D65/092F16D55/2245F16D65/04F16D69/025B60Y2200/30F16D69/026F16D69/028
Inventor 维托里奥·德索乔
Owner 科弗伦有限公司