RU179348U1 - STAPEL FOR ASSEMBLY UNDER WELDING OF HALF HOUSING OF THE LOCOMOTIVE TRACTION REDUCER - Google Patents

Abstract

The utility model relates to the field of transport engineering and can be used for serial assembly of halves of the casing of the locomotive traction gearbox. The technical result to which the utility model aims is to increase the accuracy of positioning the parts of the casing of the locomotive traction gearbox. The above technical result is achieved in the stock for manufacturing half of the casing of the traction gearbox of the locomotive with welded bonks, including a table with a worktop and mounted on the worktops The device for positioning. The technical result is achieved by the fact that the device for positioning the halves and weld beams is made on the basis of modified three-jaw turning chucks. 4 ill.

Description

The utility model relates to the field of transport engineering and can be used for serial production of halves of the casing of the traction gearbox of a locomotive, in particular, a locomotive.

The term "locomotive" in this application refers to a machine (steam locomotive, diesel locomotive, electric locomotive, motor car) moving on rails and designed to move railway trains.

Three-jaw turning chucks of various diameters are widely known from the prior art, see, for example, GOST 2675-80 “Three-jaw self-centering chucks. The main dimensions. "

From the technical literature (see, for example, “Diesel locomotives 2TE10M, 3TE10M: device and operation” / S.P. Filonov, A.E. Ziborov, V.V. Renkunas, etc. - M .: Transport, 1986, p. . 274-275) the design of the casing of the traction gearbox of the locomotive is known, which includes the upper and lower halves, interconnected by bolts. The casing is equipped with two threaded cones for attachment to the traction motor and a threaded cone for adjusting the position of the casing relative to the gear. Bonks are welded to the halves of the casing.

From the description of the patent RU 78158U1, IPC B61F 15/22, publ. November 20, 2008, the design of the casing of the traction gearbox of the electric locomotive is known, which includes the upper and lower halves, interconnected by bolts. The casing is equipped with two threaded cones for attachment to the traction motor, which are welded to the casing.

The disadvantage of the casing design described above is the lack of tightness, which leads to permanent oil loss during operation. The reason for the lack of tightness, among others, in the description of the patent RU 78158U1 called the error of the coordinates of the attachment of the casing to the traction motor, which in practice can reach 15 mm.

For the closest analogue of the utility model adopted universal table for assembly for welding of hull parts with devices located on it for positioning and fixing the assembled parts, known from the source:

Kurkin S.A. and others: "Technology, mechanization and automation of the production of welded structures", Atlas, M: Mechanical Engineering, 1989, sheet 49, Fig. 12.

The closest analogue does not provide high precision positioning of parts in the manufacture of the product.

The objective of the claimed utility model is to create a slipway for serial production of halves of the casing of the traction gearbox of a locomotive, which allows to obtain a casing with high accuracy in positioning parts.

The technical result, which the utility model aims to achieve, is to increase the accuracy of positioning the parts of the casing of the locomotive traction reducer.

The above technical result is achieved in the building berth for assembling for welding the halves of the casing of the traction gearbox of the locomotive with welded beams, which includes a table with a worktop and devices for positioning the assembled parts installed in the corresponding positions on the worktop.

The technical result is achieved by the fact that the devices for positioning the said halves of the casing are made in the form of two three-jaw turning chucks with reverse cams, and the devices for positioning the said shafts are made in the form of three three-jaw turning chucks with straight cams and rollers installed in each of them.

The utility model is illustrated by the following images.

In FIG. 1 shows the slipway for assembly for welding of the halves of the casing of the traction gearbox of the locomotive.

In FIG. 2 shows a slipway for assembly for welding of the halves of the casing of the locomotive traction gearbox and the casing parts.

In FIG. 3 shows a slipway for assembly for welding of the halves of the casing with the assembled casing of the locomotive traction reducer.

In FIG. 4 shows a modified three-jaw chuck.

The positions in the figure indicate:

1 - slipway for assembly for welding of the halves of the casing of the traction gearbox of the locomotive; 2 - countertop slipway;

3, 4 - three-jaw cartridges for positioning the halves of the casing;

5, 6, 7 - three-jaw cartridges for positioning the bonnets of the casing;

8, 9 - half of the casing; 10 - half rings of the oil trap;

11 - an arm; 12 - threaded bonk; 13 - threadless bonk;

14 - roller for positioning bonkoy;

15 - cartridge case with reverse cams;

16 - overlay cartridge with reverse cams.

A utility model can be successfully implemented, see FIG. 1 in the construction of the slipway 1 for assembly for welding of the halves of the casing of the locomotive’s traction reducer with welded beams, which includes the worktop 2 and devices 3, 4, 5, 6, 7 installed on the worktop for positioning the parts of the casing.

To implement a utility model, devices for positioning the casing halves and weld beams are made on the basis of three-jaw turning chucks. The device for positioning the halves 8, 9 of the casing includes two three-jaw chucks 3, 4 with reverse cams. At the same time, the device for positioning the bonkie 12 or 13 includes a cartridge with straight cams and a roller 14.

The table top of the slipway is milled with a given surface accuracy.

Three-jaw turning chucks 3, 4 of suitable diameter are modified to position the halves 8, 9. For this, the jaws of the chucks are turned in the opposite direction. The cams of the cartridge 3 for the hole of a larger diameter in the casing are provided with overlays with a groove for the corresponding diameter of the hole in the casing of the casing (see Fig. 4).

On the cams of the cartridge 4, grooves are made under the hole of a smaller diameter in the casing (not shown in Fig.).

On the countertop, lathe chucks are fixed with a given accuracy.

The manufacture of the halves of the casing is as follows. A pair of 8, 9 halves of the casing is installed on the tabletop 2 of the slipway so that the half rings 10 of the oil trap are pressed against the lining of the cartridge 3 and the cams of the cartridge 4, and the halves of the casing are connected with bolts. In the chucks 5, 6, 7, the rollers 14 are clamped, on which threaded brackets 12 or threadless brackets 13 are respectively mounted. The bars 12 and 13 are welded to the corresponding halves 8.9 of the casing. The positioning accuracy of the welded bonnets corresponds to the accuracy of the cartridges on the countertop.

The conducted patent studies confirm the world novelty of the utility model.

The operation of the prototype of the utility model confirmed its industrial applicability and compliance with the stated technical result.

Claims (1)

Staple for assembly for welding of the halves of the casing of the locomotive traction reducer with welded beams, comprising a table with a tabletop and devices for positioning the assembled parts installed in appropriate positions on the tabletop, characterized in that the devices for positioning the said halves of the casing are made in the form of two three-jaw turning chucks with reverse cams, and devices for positioning said bonkou are made in the form of three three-jaw turning chucks with straight cams and installed s in each of them rollers.

Images