DE463954C - A device consisting of a ring and a wiper to prevent lubricant from escaping from the axle bearings of railway vehicles - Google Patents

Description

In the case of lubricating devices for axle bearings, including those for railway vehicles, it is known to prevent the leakage of lubricant and for accelerated return the same to use the return ring and scraper to the lubricating oil reservoir. These two Agents are also used collectively, each acting in a known manner on its own. It has also been suggested that the

ίο to combine oil return ring with an or several scrapers in such a way that the stub axle encompassing at a distance Ring resilient, e.g. B. is attached to the upper part of the housing and on the opposite lower inside, the ring arranged scraper by the spring to the Steering knuckles are used. This union of ring and scraper did not prove itself in the experiments

ao lasts because the scrapers are observed for effectiveness and their interchangeability or renewal was very difficult. You are therefore back to the original way the common use of the oil return ring and scraper came back, whereby both are arranged independently of one another and each in the known manner the lubricating oil returns and thereby the escape of the oil from the axle bushing and thereby Prevents losses.

The invention relates to the structural design and arrangement of the oil return ring and scraper in railway vehicles with a mechanical conveying device of the lubricant and consists in that a ring segment that is open at the bottom and is spaced from the circumference of the steering knuckle, that on the inner bearing side - optionally also on the outer bearing side - arranged can be to catch and divert what is thrown to the side and upwards Lubricant is used, and that a scraper resting against the axis from below is provided in the gap of the ring segment. This arrangement achieves that at any rotational speed the one that is not used for axle lubrication Lubricant is returned to the lubricant reservoir quickly and without loss. Here, the effectiveness of the scraper can easily be monitored and one that has become unusable Wipers can be easily replaced.

The invention is illustrated by way of example in the drawing, namely an embodiment in

Fig. Ι in a longitudinal section and in

Fig. 2 in a partially sectioned front view.

Another embodiment is shown in Fig. 3 in partial longitudinal section and in Fig. 4 explained in plan.

The movable lubricating ring e is resiliently mounted on an exchangeable frame m so that it is pressed from below against the steering knuckle g in order to convey the lubricant from the container q to the steering knuckle.

In the illustrated embodiments

the lubricating ring e is arranged hanging in a bearing r on a roller s , the bearing r with the frame m being able to be folded over by bolts t in order to be able to comfortably pass the device under the steering knuckle g ^1. In the working position, the lubricating ring e or its bearing r is u by a spring pressing against the latter from below

ίο secured.

On both sides of the bearing shell ν are downwardly open ring segments w , which encompass the stub axle g or its collar g ¹ and the axle collar g ² at a distance, which serve to catch and return the lubricant thrown off at high axis speed due to centrifugal effects. At the same time, a scraper χ which presses against the axle collar g ^{2 in} a very slightly resilient manner from below is provided at the inner stub axle end. The purpose of this is to prevent the lubricant, which otherwise migrates laterally on the steering knuckle g, from escaping from the bearing and also to guide it back into the lubricant container q . The arrangement of a collection and discharge ^{segment 1} W also around the axle collar g ¹ is advantageous because otherwise there is the possibility that part of the lubricant thrown against the inner surface of the bearing cover at high axis speed on this laterally outside the narrow pouring spout g ¹ des Container q can flow past into the bearing housing, so it is to be regarded as a loss.

In the embodiment according to Fig. 3

and 4, which is particularly suitable for passenger car bearings, is essentially the same arrangement, but a collection and discharge segment w at the inner end of the bearing is sufficient, which is attached to the axle bushing here, because with these bearings there is no leakage of lubricant at the other end of the axle collar is feared. The scraper x, 2 is designed here as a hinged flap and is hinged to the front shoulder m ^{% of} the frame m of the lubricant delivery ring e . Here, as in the first embodiment, the scraper x, ζ is pressed slightly from below against the axle collar g ^z by a weak spring y. It is appropriate with a coating of ζ little abnutzendem material such. B. vulcanized fiber o. The like., Provided.

In order to enable the wiper χ, ζ or its lining ζ to lie securely under the axle collar g ² when this device is inserted into the bearing housing and not previously hit the steering knuckle shoulder due to the action of the spring y , one is at the Articulated flap χ (Fig. 4) engaging handle x ^{1 is} provided, by means of which the scraper χ, ζ can be pivoted downwards when the device is inserted.

Claims (1)

Claim: A device consisting of the union of ring and scraper to prevent the escape of lubricant in railway vehicles with a mechanical conveying device of the lubricant, characterized in that a ring segment (w) which is open at the bottom and is arranged at a distance for the inner and optionally also at the same time on the outer bearing side for Arranged to collect and discharge the lubricant thrown off to the side and upwards, and a scraper (x, z) is provided in the gap of the ring segment on the inside, which rests against the axis (g · ^{2) from below.} 1 sheet of drawings