RU208351U1 - DEVICE FOR ASSEMBLING AND DISASSEMBLING TRIANGEL BRAKE SHOE FIXING UNIT - Google Patents

Abstract

The claimed utility model relates to devices designed for assembling and disassembling an integral part of a rolling stock of a railway transport, in particular, an attachment point for a triangular brake shoe bogie of a railway car. screw sleeve 3. A screw 4 is screwed into the sleeve, having a handle 5 on one side and a heel 6 on the other. A mounting hole 7 is made in the base, repeating the contour of the section of the triangel frame. In addition, the central sleeve 9 interacts with the fifth one side 8, which, on the opposite side 10, interacts with the wedge ring 11 of the triangle. A guide roller 12 is installed inside the central bushing, screwed into the triangular frame. The utility model allows you to create a device for assembling and disassembling the triangular brake shoe attachment assembly, which improves operational reliability and safety of work during assembly and disassembly of the triangel brake shoe attachment assembly without the use of additional tools 4 z.p. f-ly, 1 ill.

Description

The claimed utility model relates to devices intended for assembly and disassembly of a component part of a rolling stock of railway transport, in particular, a unit for fastening a brake shoe of a triangel of a railway carriage bogie.

The known design of a screw clamp [RF patent for utility model No. 129713, published on June 27, 2013 in Bul. No. 18], including a housing with an upper and lower shelves, connected by a wall, a clamping screw, a fixing part. The inner surface of the upper shelf is made toothed, there are relief holes in the wall, and the lower shelf and the fixing part have holes for interaction with the clamping screw. The clamp is equipped with two fixing parts, for placement of which U-shaped notches are made above and below the bottom shelf, the height of which is not less than the height of the fixing parts, and a clamping heel located on the clamping screw. The toothed surface of the top flange has a smooth concave surface area opposite the pressure screw.

The disadvantage of this design is the inability of this clamp to install or remove the brake shoe of the triangel of the railway car bogie from the frame of the triangel.

Also known is the design of the squeeze device [RF patent for invention No. 2254254, published on 20.06.2005 in bull. No. 17], consisting of a shaft, a bowl and a nut. The assembly of the triangel brake shoe attachment unit is carried out using a squeeze device, as follows. In the threaded hole M10, the triangel strings are twisted by the shaft, after which the nut is screwed onto the shaft, pressing the elastic element through the bowl and the wedge ring. With the elastic element pressed in, crackers are installed in the conical grooves, then the nut is loosened and the release device is removed. Disassembly of the triangel brake shoe mounting unit is carried out in the reverse order.

This design is selected as a prototype for the claimed utility model.

The disadvantages of this design are:

- the excess of stresses by more than 1.3 times (for tension and shear in the threaded part of the Ml0 shaft and the triangel string) arising from the compression of the elastic element with a force of 10 000 N (1.0 tf) required to perform installation (removal) crackers of the wedge system for fixing the elastic element of the triangel. The operation of this device is unsafe, when the compression of the elastic element is performed due to excess stresses, the threaded part of the M10 shaft and (or) the triangel string may be destroyed;

- the need to use universal locksmith tools (for example, wrenches) to install (remove) a squeeze device, which negatively affects labor safety, and also leads to an increase in the range and quantity of tools used and increases the cost of organizing work.

The problem to be solved by the claimed utility model is to create a design for a device for assembling and disassembling a triangel brake shoe attachment unit, which increases the operational reliability of the release device by changing the pattern of application of forces during compression of an elastic element.

The problem is solved by using a triangel device for assembling and disassembling the brake shoe attachment unit, the design of which has a frame designed to fix the device by the thrust bracket of the triangel frame when the elastic element is pressed. Compression of the elastic element is performed by rotating the screw with a standard handle, while the rotating screw moves the central sleeve, which presses the elastic element through the wedge ring.

The essence of the proposed design lies in the fact that the device for assembling and disassembling the triangel brake shoe attachment unit contains a base connected by two ribs with a screw sleeve, into which a screw is screwed, which has a handle on one side and a heel on the other, and a mounting hole is made at the base repeating the contour of the cross-section of the triangel frame, while the central bushing interacts with the fifth one side, which interacts with the wedge ring of the triangel on the opposite side, and inside the central bushing there is a guide roller screwed into the triangel frame.

At the same time, the guide roller is fixed to the end part of the triangel string by means of a projection with a metric thread of more than M10.

The base is made in the form of a rectangular plate.

The ribs connecting the base with the screw sleeve are installed opposite each other and on the smaller sides of the triangel frame section.

The central bushing has a groove that interacts with the heel.

The essence of the claimed utility model is illustrated by a drawing.

FIG. 1 - device for assembling and disassembling the triangel brake shoe attachment unit (isometric view).

Positions:

1 - base; 2 - rib; 3 - screw sleeve; 4 - screw; 5 - handle; 6 - heel; 7 - mounting holes of the base; 8-side of the central sleeve interacting with the fifth; 9 - central bushing; 10 - side of the central sleeve interacting with the wedge ring; 11 - wedge ring; 12 - guide roller; 13 - protrusion of the guide roller with metric thread; 14 - groove in the central sleeve made from the side of the heel; 15 - triangel frame; 16 - elastic element of the triangel; 17 - biscuit; 18 - triangel string; 19 - triangel shoe.

A device for assembling and disassembling a triangel brake shoe attachment unit, contains a base 1 connected by two ribs 2 with a screw sleeve 3. Screw 4 is screwed into the sleeve 3, which has a handle 5 on one side and a heel on the other 6. In the base 1 there is a fastening hole 7 repeating the contour of the triangel frame section. In addition, with the fifth 6, one side 8 interacts with the central bushing 9, which with the opposite side 10 interacts with the wedge ring 11 of the triangel. Inside the central bushing 9 there is a guide roller 12 screwed into the frame of the triangel.

Also, the guide roller 12 is fixed to the end part of the triangel string by means of a protrusion 13 with a metric thread greater than M10.

The base 1 is made in the form of a rectangular plate.

The ribs 2 connecting the base 1 with the screw sleeve 3 are installed opposite each other and on the smaller sides of the triangel frame section.

The central bushing 9 interacts with the fifth 6 through a groove 14 made of a circular shape.

The order of operation of the device (the triangel must be securely fixed against possible movements during assembly / disassembly of the triangel shoe attachment unit).

Disassembly:

- screw the guide roller 12 into the frame 15 of the triangel by means of the threaded protrusion 13 of the guide roller 12;

- install the central bushing 9 on the guide roller 12;

- to install the device on the frame 15 of the triangel by means of the base 1 with a cutout 7 repeating the contour of the section of the frame 15 of the triangel;

- by rotating the handle 5 of the screw 4, compress the elastic element 16 of the triangel, acting on the fifth screw 4 of the screw 4 on the central bushing 9, which has a groove 14 to prevent the misalignment of the heel 6 and the central bushing 9, while the central bushing 9 has an internal hole to ensure tolerance with a guide roller 12, the compressive force is transmitted from the heel 6 through the central bushing 9 to the wedge ring 11 and to the elastic element 16, and to remove the crackers 17 it is required to perform 3-4 turns of the screw 4;

- remove two released crackers 17;

- by rotating the handle 5 of the screw 4, remove the heel 6 and the central sleeve 9 from the interaction;

- remove the device from the frame 15 of the triangel;

- remove the central bushing 9;

- remove the wedge ring 11;

- unscrew the guide roller 12 from the triangel string 18;

- remove the elastic element 16;

- remove the shoe 19 of the triangel. Assembly:

- install shoe 19 of the triangel;

- install the elastic element 16;

- screw the guide roller 12 into the frame 15 of the triangel by means of the threaded protrusion 13 of the guide roller 12;

- install the wedge ring 11;

- install the central bushing 9 on the guide roller 12;

- to install the device on the frame 15 of the triangel by means of the base 1 with a cutout 7 repeating the contour of the section of the frame 15 of the triangel;

- by rotating the handle 5 of the screw 4, compress the elastic element 16 of the triangel, while installing the crackers 17 requires 3-4 turns of the screw 4;

- install two crackers 17;

- holding the crackers 17, rotate the screw 4 to release the elastic element 16.

- remove the device from the frame 15 of the triangel.

- remove the central bushing 9;

- Unscrew the guide roller 12 from the string 18 of the triangel.

The technical result of the claimed utility model lies in the fact that in the device for assembling and disassembling the triangel brake shoe attachment point, a fastening hole is made at the base, repeating the contour of the triangel frame section, and the central bushing interacts with the fifth one side, which interacts with the wedge on the opposite side. ring of the triangel, while inside the central sleeve there is a guide roller screwed into the frame of the triangel, an increase in the operational reliability of the device for assembling and disassembling the triangel brake shoe mount is provided, by changing the pattern of application of forces when pressing the elastic element, eliminating tensile loads on the threaded part of the guide roller ...

The improved design of the device makes it possible not to use an additional universal locksmith tool, which ensures the safety of work when using a squeeze device.

Also, in the proposed design of the device, a decrease in the number of tools used and a decrease in the cost of organizing work is ensured.

In addition, the possibility of damage by the thread of the part of the triangel string during installation or removal of the triangel shoe is excluded.

At present, design documentation has been developed for the declared utility model, and the production and operation of a pilot batch has been organized.

Claims (5)

1. A device for assembling and disassembling a triangel brake shoe attachment unit, containing a base connected by two ribs with a screw sleeve, into which a screw is screwed, having a handle on one side and a heel on the other, characterized in that a mounting hole is made in the base, repeating the contour of the cross-section of the triangel frame, while the central bushing interacts with the fifth one side, which interacts with the wedge ring of the triangel on the opposite side, and inside the central bushing there is a guide roller screwed into the triangel frame. 2. A device for assembling and disassembling a triangel brake shoe mount according to claim 1, characterized in that the guide roller is fixed to the end part of the triangel string by means of a protrusion with a metric thread of more than M10. 3. A device for assembling and disassembling the triangel brake shoe attachment unit according to claim 1, characterized in that the base is made in the form of a rectangular plate. 4. A device for assembling and disassembling the triangel brake shoe mount according to claim 1, characterized in that the ribs connecting the base with the screw sleeve are installed opposite each other and on the smaller sides of the triangel frame section. 5. The device for assembling and disassembling the triangel brake shoe attachment unit according to claim 1, characterized in that the central sleeve has a groove interacting with the fifth.

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