RU131355U1 - DEVICE FOR REMOVING RAILWAY PANELS - Google Patents

Abstract

1. A device for removing brake pads of a railway vehicle, comprising pendants, brake shoes with pads mounted on triangles, which include struts pivotally connected to the middle holes of the vertical arms, the lower holes of which are connected through a pivotally attached tightening, characterized in that on the strut of each of the triangels are fixedly connected to each other: at least one bar, pivotally connected to a vertical lever, and supporting both, on which pendants are pivotally mounted at their upper end, and their lower end is pivotally connected to a tightening, forming a parallelogram from the vertical arm, tightening and strut. 2. A device for removing brake pads of a railway vehicle according to claim 1, characterized in that one of the holes in the suspensions is made of elongated shape.

Description

The utility model relates to the field of railway transport, and in particular to devices for removing brake lever pads from the wheels of freight carriages.

A device for removing pads from the wheel of a railway carriage trolley (invention RU No. 2321975 B61H 13/20, B61H 1/00 T 11/08 publication date 07/20/2008), in which brackets are mounted on the triangles, forming together with the triangel pendulum suspensions and two pivotally articulated levers are not an equilateral four-link, one hinge of which has a given moment of resistance.

The disadvantage of this design is the use of a non-standard triangel due to the installation of the bracket in the area of the shoes, which in turn leads to a significant rise in price.

A device for removing brake pads of a railway vehicle is also known (AS USSR No. 647163, B61H 13/20, B61H 15/00, B60T 11/04), in which an elastic bracket is installed with a gap between each vertical arm and the beam of the triangel fixing puff and spacer.

The disadvantage of this design is the inconsistent provision of removal of brake pads from the surface of the wheel, because during operation, the bracket can move along the tightening and struts of the triangel, so that the triangel has the ability to rotate around its axis under the action of gravity. This leads to the contact of one of the edges of the brake pads and the surface of the wheels, as a result of which there is uneven wear of the brake pads and reduced braking performance. This design is selected as a prototype.

A utility model solves the problem of ensuring a uniform gap between the brake pads and the wheel surface in the released state without changing the design of the triangel.

The technical result in the claimed utility model is to ensure reliable removal of brake pads from the wheel surface when the brake pads are released, to ensure operability when the brake pads are mutually changed relative to the wheel in the vertical plane, uniform pressure is applied to the pads against the wheel when exposed to various external factors.

Signs that characterize the utility model that are available to peers:

- triangel;

- vertical lever;

- a puff.

Features:

- on the strut of each of the triangels are fixedly connected to each other: at least one bar pivotally connected to a vertical lever and a supporting bracket, on which pendants are pivotally mounted at their upper end, and their lower end is pivotally connected to a tightening, forming a lever from a vertically tightenings and struts of a triangel of a parallelogram. wherein one of the holes of the suspensions is made of oblong shape.

In Fig.1 shows a General view of the linkage of the trolley of a railway vehicle, Fig.2 is a General view of the device for the gadget pads, Fig.3 is a section according to Fig.2. Where:

1 - suspension of a triangel;

2 - a brake shoe with a block;

3 - triangel;

4 - spacer;

5, 6 - vertical lever;

7, 13, 15 - axis;

8 - tightening;

9 - a dead center earring;

10 - thrust;

11 - supporting bracket;

12 - strip;

14 - suspension;

16 - a nut;

17 - cotter pin;

18 - washer;

19 - the surface of the wheels.

A device for removing brake pads of a railway vehicle contains pendants 1 of a triangel 3, brake shoes with pads 2, triangles 3. Spacers 4 of a triangel 3 are connected to the middle holes of the vertical arms 5 and 6 using the axes 7. The lower holes of the vertical arms 5 and 6 are pivotally connected with a tightening 8. The upper hole of the lever 5 is connected with the earring dead center 9, and the upper hole of the lever 6 is connected with the rod 10 of the lever system of the car.

On the spacer 4 of each triangel 3, a support bracket 11 and at least one plank 12 are fixedly connected to each other and are fixed to the spacer 4 using the axes 7 and 13. The axis 7 pivotally connects the plank 12 to the spacer 4 and the middle hole of the vertical arm 5. The axis 13 prevents the rotation of the supporting bracket 11 and the strap 12 relative to the strut 4 around the axis 7. The spacer 4 of each triangel 3 is additionally connected to the tightening 8 of the vertical arms 5 and 6 using the supporting bracket 11, strap 12, suspensions 14 and axles 13 and 15. By plumb 14, the vertical arm 5 or 6, 8, and tightening the spacer 4 Triangel 3 in plan form a parallelogram. The axes 13 and 15 have a threaded part and are fixed with nuts 16 and cotter pins 17. To reduce wear on the nuts 16 and the heads of the axles 7, 13 and 15, washers 18 are mounted on them. One of the holes of the suspensions 14 can be of oblong shape.

A device for removing brake pads of a railway vehicle operates as follows. When braking, through the rod 10 of the brake linkage system of the car, the force is transmitted to the vertical lever 6, which in turn rotates around the hinge with a tightening 8 and moves the triangel 3 suspended on the suspensions 1, pressing the brake pads 2 to the rolling surfaces of the wheels 19. The tightening 8 transfers the force on the vertical lever 5, which, in turn, rotates around the axis of the dead center earring 9 moves the second triangel 3 suspended on the suspensions 1, pressing its brake shoes with pads 2 to the surfaces of the wheels. After removing the force from the linkage 10 of the brake linkage system of the carriage, when the brakes are released, the triangles 3 return to their original position and the brake pads are retracted from the wheel surfaces, while the triangels 3 tend to rotate relative to axis 7 under the influence of their own gravity. connected by supporting brackets 11 and straps 12 prevent this rotation of the triangels, thereby providing a regulatory clearance of 5 to 8 mm between the brake shoes with pads 2 and the rolling surfaces to forest.

Claims (2)

1. A device for removing brake pads of a railway vehicle, comprising pendants, brake shoes with pads mounted on triangles, which include struts pivotally connected to the middle holes of the vertical arms, the lower holes of which are connected through a pivotally attached tightening, characterized in that on the strut of each of the triangels are fixedly connected to each other: at least one bar, pivotally connected to a vertical lever, and supporting both, on which pendants are pivotally mounted at their upper end, and their lower end is pivotally connected to the tightening, forming from the vertical arm, tightening and strut triangel parallelograms. 2. A device for removing brake pads of a railway vehicle according to claim 1, characterized in that one of the holes in the suspensions is made of elongated shape.

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