SU755653A1 - Arrangement for lubricating engine axial bearings and locomotive traction transmission - Google Patents

Description

The invention relates to railway transport and relates to locomotive building, namely the design of devices for lubricating motor-axial bearings of a traction motor and traction drive of a locomotive.

Known devices for lubricating motor-axial bearings, comprising a housing with an oil bath and a polster device, which presses a lubricating wick to the axis of the wheel set. For lubrication gears gearbox oil is poured into its crankcase [1].

The disadvantage of such devices is the small volume of the oil bath, which requires refilling of the oil approximately every thousand kilometers.

A device for lubricating motor axle bearings and a locomotive drive transmission is known, comprising a housing mounted on an axis of a wheel pair, divided into working and common chambers, as well as a spare chamber, communicated by a connecting tube, and having a crankcase with an oil receiver and oil sump, while working chambers the height of the marks of a constant level of lubrication are connected hori2

zonal channel communicated with the oil sump [2].

The disadvantage of this design is a single use lubricating motor oil-axial bearings, koto ₅ rye then either discharged directly to the outside, or poured into the gear case and the traction transmission after overflow latter also spills out, polluting the environment.

The purpose of the invention is the provision of multiple use of oil, reducing its losses and reducing environmental pollution.

For this, the cavities of the housings of the motor-axle bearings through a common chamber are connected to the oil bath of the crankcase of the traction drive, and the working chambers are connected to the oil receiver of the crankcase.

FIG. 1 shows a diagram of a device for lubricating motor axle bearings and traction gear for a visual representation of its design; in fig. 2 - a section through the working chamber; in fig. 3 - a section through the spare chamber.

Lubricating device case 1 is made as one unit for two motor units755653

Axial bearings 2. Its internal volume is divided into three chambers: two workers 3 and one spare 4, located between the workers. The working chambers are interconnected by channel 5 through windows 6 at the height of a constant level of lubricant in them, i.e. the maximum level of oil in channel 5 is the constant level of oil in chambers 3. Chamber 4 and chambers 3 are connected through channel 5 by connecting pipe 7 , the lower edge of which is at the upper (constant) level of oil in chambers 3 (channel 5). The chambers 3 communicate with the cavities of the motor-axial bearings through the window 8, into which the wick 10 from the polster device 11 is fed to the axis of the wheel pair 9. The bearing cavities 2 channels 12 (for the bearing from the side of traction gear) and 13 (for the opposite bearing) communicate with camera-collector 14, connected to the oil bath 15 of the crankcase 16 of the gearbox. The chambers 3 through the channel 5 channel 17 are connected to the oil receiver 18 located above them in the crankcase 16. The channel 5 is equipped with a filling neck 19 connected to the camera 4 by channel 20. Channel 5 has a sump 21 with a drain plug 22. The collecting chamber 14 also has a sump 23 with a drain plug 24. The device case 1 is fastened to the skeleton of the motor 27 by means of bolts 25 and washers 26. The gearbox housing 16 is made detachable from two halves (see Fig. 1) and fixed to the motor core 27 by bolts 28 at three points. The chambers 3 are closed by covers 29, attached to the body 1 by means of bolts 30. In the bath 15 of the crankcase 16 there are guide rails 31 arranged with. two sides of the wheel, to ensure the directional movement of oil. The oil sprayed by the toothed wheel 32 of the traction gearbox from the bath 15, along the guides 31 gets onto the walls of the crankcase 16 and collects in the oil receiver 18, then through the channel 17 enters the channel 5 and through the windows 6 into the chambers 3, from the chambers 3 through the wick 10 to the axis wheel pair 9, then in the cavity of bearings 2 (in the gaps between the axis of the wheel pair 9 and bearings 2). The waste oil through channels 12 and 13 is discharged into the collection chamber 14, and from it into the oil casing 15 below the crankcase 16. Thus, a closed circulation lubrication system is obtained.

The maximum possible level of lubrication in the working chambers when refueling the system is limited by the lower edge 33 of the window in the housing 1 of the lubricator. Upon reaching this level, the oil through the channel 34 merges into the collection chamber 14 through the channel 12.

When refueling the system, a tip of a filling device (not shown) is inserted into the neck 19, which overlaps the connection of the neck with channel 5, and oil is fed through pressure channel 20 into chamber 4, then through tube 7 and channel 5 into chamber 3 and bearing cavities 2, from through channels 12 and 13 into the collection chamber 14, and from there into the bath 15. The system is filled until oil appears in the hole for the test plug 35 in the gearbox housing 16, located at the level of oil required for normal operation of the traction gearbox. After filling the system, the tip of the filling device is removed, and the neck is closed by the stopper 36.

The oil poured into the chamber 4 is a battery that feeds continuously to the lower edge of the tube 7, the oil in the chambers 3 (channel 5). As soon as the oil in the chambers 3 falls below a predetermined level, the lower edge of the tube 7 opens the access of atmospheric air pressure to the chamber 4 and the oil through the channel 20 and the throat 19 enters the channel 5 and through the windows 6 into the chamber 3 to the level that overlaps the lower edge of the tube 7 A further outflow of oil from channel 20 stops due to the vacuum of chamber 7 formed after the overlap of the cut-off of tube 7. Thus, the level of oil in the system remains constant while its repeated use is due to circulation.

Claims (1)

Claim A device for lubricating motor-axial bearings and locomotive drive transmission, comprising a housing mounted on an axis of a wheel pair, divided into workers, common and spare chambers, communicated by a connecting tube, motor axle bearing housings, crankcase with an oil receiver and oil sump, while workers chambers at the height of the marks of a constant level of lubrication are connected by a horizontal channel communicated with the oil sump, characterized in that in order to ensure repeated use of oil, reduce its losses and ability sheniya pollution, cavity casings of motor-axle bearings via a common chamber connected to the oil bath casing traction transmission, and the working chambers - with the crankcase oil receiver.