Railway vehicle brake shoe

FIELD: railway transport.

SUBSTANCE: invention relates to railway transport, particularly to brake shoes. Proposed brake show comprises polymer friction material and metal carcass comprising perforated rear ledge with its length smaller than that of shoe rear part by 1 to 9 mm and 11 mm to 50 mm.

EFFECT: ease of manufacture.

1 dwg

 

The invention relates to railway transport, namely to the brake pads railway rolling stock.

The analogue of the claimed invention is a rail brake pad containing polymer friction element mounted on a metal frame made in the form of perforated Telnice, combined with a wire frame, the length of Telnice greater than the length of the wire frame and asymptotically approaches the length of the pads (see RF patent №2253056, IPC7F16D 65/04, 2005). The essential features of similar "metal frame, perforated Telnic" match the essential features of the claimed invention.

The disadvantage of analogue is the lack of industrial applicability, namely the impossibility of carrying out the invention, since the term "asymptotic" means "unlimited approaching". Therefore, the term "asymptotically approaching" means "unlimited approaching approaching" and has no semantic or technical content.

The prototype of the claimed invention is a railway brake Shoe consisting of a friction polymer material and a metal frame including a perforated tylenol whose length corresponds to the length of the rear of the pads (see patent P is No. 2045431, IPC7VN 7/02, 1995). The essential features of the prototype friction polymeric material, metal frame, perforated tylenol, length Telnice, length pads are similar to the essential features of the claimed invention.

The disadvantage of the prototype is low manufacturability of the product, due to the line length perforated Telnice and length of the pad. As a result, in the manufacturing process produces a large percentage of defective products due to displacements, strains, and other Telnice.

The task, which is aimed by the invention, is to improve the manufacturability of the product by reducing the number of marriage by changing the ratio of the lengths of prettylink and pads.

To achieve the technical result in a railway brake Shoe containing polymeric friction material and metal frame, includes perforated tylenol, length Telnice less than the length of the rear pads on a size from 1 mm to 50 mm Essential features of the claimed invention "length perforated Telnice less than the length of the rear pads on a size from 1 mm to 50 mm are different from the characteristics of the prototype.

The drawing shows the inventive rail brake pad.

The Shoe has a friction element 1, which is first made of polymer friction composite. The friction element from the back side pads preferowan metal frame 2 of the containing holes (perforated) metal strip (perforated tylenol), which can be combined with a wire frame (not shown). The length of the pad L is greater than the length l perforated Telnice on the value of a, which can vary from 1 mm to 50 mm, the distance from the edges 3 pads to the edges 4 Telnice may be the same for both edges of the pads and be(shown in the drawing) or to be varied until a match of one of the edges of Telnice with one of the edges of the pads. In any of these cases, the difference between L and l will be equal to A.

A specific example of the invention is a rail block, whose length And 20 mm.

Be made of the inventive rail pad may known methods.

Execution perforated Telnice pads with length less 1÷50 mm length rear pads, reduces the probability of marriage products Telnice pads and at the same time ensures during operation of the pad sufficient protection prettylinks the rear of the block.

Brake pad railway vehicle containing polymeric friction material and metal frame, enabling the second perforated tylenol, characterized in that the length of the perforated Telnice less than the length of the rear pads on a value from 1 to 9 mm, 11 to 50 mm



 

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2 cl, 3 ex

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