RU166827U1 - LOCOMOTIVE GEAR SHAFT PERFORMED FROM COMPOSITE MATERIAL - Google Patents

Abstract

1. The casing of the gear train of the locomotive, made of composite material, containing upper and lower hollow detachable parts interconnected, in the walls of the casing along the connector line in the upper and lower parts are made holes for the axle of the wheelset and for the axis of the traction motor, while the hole for the axle of the pair of wheels is equipped with a labyrinth felt seal, the holes for the bearing of the pair of wheels and for the axis of the traction motor are equipped with rubber seals, characterized in that the felt seal in executed in the form of two circuits - internal and external. 2. A casing according to claim 1, characterized in that in the upper detachable part of the casing from the side of the inner contour of the felt seal, an oil separator of composite material is installed. The casing according to claim 1, characterized in that in the lower detachable part of the casing from the side of the inner contour of the felt seal, additional openings are made for draining the oil falling into the cavity between the circuits back into the casing. 4. The casing according to claim 1, characterized in that the rubber seals are made of oil and petrol resistant profile.

Description

The utility model relates to the field of transport engineering and is intended for use in the design of locomotives to protect a gear pair that transmits torque from the engine to the wheelset and to ensure the safety of the lubricant necessary for the normal operation of the pair.

To protect against external influences, as well as to provide lubrication, the gear transmission providing the drive of the locomotive’s wheelset is placed in a protective casing. Similar designs are widely known and described in the technical literature and on the Internet (See http://rafailkacimov.ru/?p=1025), while at the same time on the casings (in the movable connection of the casing and the wheel shaft) use one contour of felt seal that does not provide sufficient tightness.

So known casing gear wheel-motor unit of the locomotive, which consists of upper and lower hollow parts connected to each other by a detachable connection with a rubber seal. In the walls of the casing along the connector line of the upper and lower parts, holes are made for the axis of the wheelset and for the axis of the traction motor. (See RF patent for utility model No. 78158, class B61F 15/22, filed June 16, 2008, published November 20, 2008, “Gear Cover for Electric Locomotives”). The outer hole for the wheel pair axis is equipped with a single felt seal, the hole for the wheel pair bearing, as well as for the traction motor axis, are equipped with sponge rubber seals, however, the single felt seal and the use of sponge rubber do not provide reliable tightness of the casing.

The closest in technical essence and the achieved effect and chosen as the closest analogue (prototype) is a gear casing of a locomotive made of composite material containing upper and lower hollow detachable parts interconnected in the walls of the casing along the connector line in the upper and the lower parts are made holes for the axis of the wheelset and for the axis of the traction motor, while the outer hole for the wheelset axis is equipped with a labyrinth felt seal, holes for pnik wheelset and for the drive motor axle are provided with seals made of sponge rubber.

(See RF patent for the invention No. 2317198, class B29C 43/20, B61C 9/00, filed June 23, 2006, published February 20, 2008, “A method of manufacturing a fiberglass casing, for example, for a gear box a locomotive and a casing made by this method. "

At the same time, the felt seal is single, and the proposed rubber is not oil and petrol resistant and is destroyed by contact with oil, as a result, the known casing does not provide sufficient tightness due to the likelihood of oil leakage.

The objective of the proposed utility model is to increase the tightness of the gear casing of a locomotive made of composite material.

In addition, the objective of the proposed utility model is to expand the arsenal of technical means for the manufacture of gear housings for a locomotive with increased tightness, therefore, an additional technical result consists in the implementation of this purpose.

The technical result that allows to solve this problem is to increase the tightness of the casing in the places where the axle of the wheel pair and the axis of the traction motor exit by optimizing the design of the casing.

The problem is achieved in that in the casing of the gear train of the locomotive made of composite material containing the upper and lower hollow detachable parts interconnected, in the walls of the casing along the connector line in the upper and lower parts are made holes for the axle of the wheelset and for the axle of the traction an electric motor, while the outer hole for the axle of the pair of wheels is equipped with a labyrinth felt seal, the holes for the bearing of the pair of wheels and for the axis of the traction motor are equipped with rubber seals, with According to the utility model, the felt seal is made in the form of two contours (internal and external).

In the upper detachable part of the casing from the side of the inner contour of the felt seal, an oil collector made of composite material can be installed.

In the lower detachable part of the casing, from the side of the inner contour of the felt seal, additional openings can be made for draining the oil falling into the cavity between the circuits back into the casing.

Rubber seals can be made of oil and petrol resistant profile.

Studies conducted on patent and scientific and technical sources of information indicate that the proposed locomotive gear housing made of composite material is not known i.e. meets the criterion of "novelty."

The proposed casing of the gear train of the locomotive made of composite material can be manufactured using equipment and materials of both domestic and foreign industry, therefore, meets the criterion of "industrial applicability".

The proposed set of essential features informs the claimed casing of the gear train of the locomotive made of composite material new properties that can solve the problem, namely increasing the tightness of the casing of the gear transmission of the locomotive made of composite material.

The implementation of the felt seal in the form of two circuits (internal and external) allows to increase the tightness of the casing, to reduce the loss of oil inside the casing to a minimum and thereby increase the service life of the gear train of the locomotive.

Installing an oil separator made of composite material in the upper detachable part of the casing from the side of the inner contour of the felt seal prevents excessive oil from entering the felt seal, which further increases the tightness of the casing.

The implementation in the lower detachable part of the casing from the side of the inner contour of the felt seal additional openings for draining the oil falling into the cavity between the circuits, back into the casing, can reduce oil loss and at the same time increase the tightness of the casing.

The execution of rubber seals from the oil and petrol resistant profile allows to prevent the destruction and wear of the seal, which in turn increases the tightness of the casing.

Thus, the set of essential features allows to achieve a technical result, namely, increasing the tightness of the casing in the places where the axle of the wheel pair and the axis of the traction motor (TED) exit due to optimization of the casing design.

The proposed utility model is illustrated by drawings:

In FIG. 1 - shows a General view of the casing in the projection

In FIG. 2 - view of the casing from the side of the attachment to the TED

In FIG. 3 is a section AA of FIG. 2

In FIG. 4 is a section BB of FIG. 2

In FIG. 5 - place In FIG. 3

In FIG. 6 - place G of FIG. 3

In FIG. 7 - place D of FIG. 3, 4

Locomotive gear casing made of composite material contains upper 1 and lower 2 hollow detachable parts interconnected; holes 3, 4 for the axle of the wheelset are made in the walls of the casing along the connector line in the upper 1 and lower 2 parts, hole 5 is for the axle of the traction motor, the outer hole 3 for the axle of the wheel pair is equipped with a labyrinth felt seal, the hole 4 for the bearing of the pair of wheels and the hole 5 for the axis of the traction motor are equipped with seals 6 made of rubber, the felt seal is made ying as two internal circuits 7 and 8 of the external.

In the upper detachable part 1 of the casing from the side of the inner loop 7 of the felt seal, an oil separator 9 of composite material can be installed.

In the lower detachable part 2 of the casing from the side of the inner contour 7 of the felt seal, additional openings 10 can be made for draining the oil falling into the cavity between the circuits 7, 8 back into the casing.

Rubber seals 6 can be made of oil and petrol resistant profile.

The gear casing of the locomotive, made of composite material, works as follows: while the locomotive is moving, the gears of the traction motor, rotating relative to each other, spray oil on the casing, the presence of a felt seal in the form of two circuits 7, 8 delays the ejection of oil from the casing, provides its tightness.

During the movement of the locomotive, oil flows down the wall of the upper part of the casing from the side of the hole 3 and enters the oil separator 9, through which it flows down the casing without falling onto the felt. Even if the oil passes through the inner contour 7 of the felt seal, once it enters the cavity between the circuits 7, 8, it flows back into the casing through the holes 10 for draining the oil and does not get outside, as a result, the tightness increases.

Claims (4)

1. The casing of the gear train of the locomotive, made of composite material, containing upper and lower hollow detachable parts interconnected, in the walls of the casing along the connector line in the upper and lower parts are made holes for the axle of the wheelset and for the axis of the traction motor, while the hole for the axle of the pair of wheels is equipped with a labyrinth felt seal, the holes for the bearing of the pair of wheels and for the axis of the traction motor are equipped with rubber seals, characterized in that the felt seal in performed in the form of two circuits - internal and external. 2. The casing according to claim 1, characterized in that in the upper detachable part of the casing, an oil separator of composite material is installed on the side of the inner contour of the felt seal. 3. The casing according to claim 1, characterized in that in the lower detachable part of the casing from the side of the inner contour of the felt seal, additional openings are made for draining the oil entering the cavity between the circuits back into the casing. 4. The casing according to claim 1, characterized in that the rubber seals are made of oil and petrol resistant profile.

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