JPS62103203A - Wheel set for rail travelling car - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention comprises a wheel having a contoured running surface fixedly fixed on two separate axles, each one of which is attached to an axle half. By inserting a radial bearing in between which is dependent and which absorbs the radial forces of both wheels in the region of the axle, on the one hand both axle halves are themselves rotatable and non-slidable with respect to the other; In the area, one axle half is inserted through the shaft end at least towards the center of the wheel into the other axle half in the form of a hollow cylinder, and on the other hand both axle halves are inserted into the other axle half in the form of a hollow cylinder. They are coupled in such a way that the force is transmitted through the clutches in order to adjust the rotational speed difference, both clutch parts being magnetizable and defining an operating gap concentric to the axle. Related to wheel sets for rail vehicles such as

My old friend's West German patent application No. P 350148111.
In wheel sets of this type according to No. 1-21, the bearings provided for supporting the clutch succumb under relatively small stresses. This is because a bearing, such as a radial bearing between the two axle halves, rotates only at the rotational speed difference of the respective wheel or axle half, which is permitted by the magnetic powder clutch.

However, in this case, positioning the clutch or both clutch parts on the outer periphery of the hollow cylindrical axle half end in the above-mentioned manner is necessary in order to transmit torque between the outer part of the clutch and the dependent axle half. A connection member that is resistant to torsion is always required. The connecting member is
It must be relatively flexible in bending in order to eliminate variations in the clutch clearance due to axle deformation. The necessity to match the bending strength of the axle under static and dynamic loads makes this connecting member a dangerous component of the wheel set.

It is an object of the invention that a wheel of the type mentioned at the outset be designed so that a bending-flexible and torsionally-resistant connection member of the type described above can be dispensed with between the clutch outer part and the dependent axle half. It is to compose a set.

This problem is solved by the features of claim 1.

If the radial spacing between the hollow cylindrical axle half end and the shaft end is correspondingly large, this shaft end can be moved in particular by the supporting action of the radial bearing, in accordance with claim 2. In its configuration, it becomes available for the inner part of the clutch as a basis practically free from axle deformation, and this at the same time creates the possibility of positioning that saves a bending-flexible connecting member for its outer part. Become. In this case, the radial bearing depending on the root of the shaft end can at the same time be used as a support bearing for the outer part of the clutch in the manner specified in claim 3. This means that special bearing bearings for the clutch can be completely dispensed with for the wheel set described above as prior art.

Next, the present invention will be explained in detail based on the drawings. This drawing shows, partly in section and partly in cutaway, a wheel set having wheels 2 and 3 with flanges firmly fixed on two separate axles l, with attached axle halves. 2 schematically shows two possibilities for joining bodies 4 and 5; FIG.

As the wheel halves move along the track, wheels 2 and 3 should be able to be partially uncoupled from each other. However, in this case, they cannot slide against each other. For this purpose, one axle half 4 is inserted via the shaft end 4.1 towards the center of the wheel set into the other axle half 5, which is at least in the form of a hollow cylinder; For example, two bearings each consisting of one roller bearing
Two radial bearings 6 are connected in the middle. In this case, the shaft end 4. One radial bearing 6 is provided at each end and root of l.

These two radial bearings 6 are tilted against each other so that the radial bearings 6 can take up the thrust forces of both wheels 2 and 3 via the axle halves 4 and 5, which are themselves rotatable. ing. This rest is secured on the one hand by a so-called hold-down ring 7 and on the other hand by a so-called hold-down disc 8,
They secure the two radial bearings 6 in an axially play-free manner by means of intermediately connected spacer sleeves 9 on the shaft ends 4,1. At this time, the holding ring 7 located at the base of the shaft end (closing cover 1
2) Hollow cylindrical axle half end 5.1
and the hold-down disk 8 is connected to the shaft end 4.1.

Furthermore, a connection between one or both axle halves 4 and 5 via a magnetic powder clutch 10 can take place. Magnetic powder clutch 1
In the embodiment shown above the longitudinal axis of the wheel set 0, the hollow cylindrical wheel half end 5.1 has a casing for a special clutch outer part 10.1 made of magnetizable material. is forming. In contrast, the axle half end 5.1 in the other embodiment shown below the longitudinal axis of the wheel set of the magnetic powder clutch 10 is at the same time also the outer part of the clutch and therefore corresponds to The axle half 5 is made entirely of magnetic steel (e.g. 5t5
0 to 25 CrMo4V).

In both cases, the inner part 10.2 of the magnetic powder clutch 10, which is provided with the excitation coil 11, is firmly fixed on the shaft end 4.1 or the spacer sleeve 9, so that (other than the magnetic powder clutch 10) No further coupling means are required for transmitting torque between the two axle halves 4 and 5. Hollow cylindrical axle half end 5 via closing cover 12 of clutch IO on radial bearing 6 subordinate to the root of shaft end 4.1
．． 1 also saves a special bearing for the latch outer part l001. Finally, this arrangement of the inner part 1002 between the two radial bearings 6 and thus in the area of the bendingly rigid axle halves which is subjected to mechanical loads makes it possible for the axle deformation over the working gap 1093 of the clutch 10 to actually occur. This is to ensure that this does not occur.

Furthermore, the magnetic powder clutch 10 operates in a known manner. This means that in the working gap magnet powder (not shown here) can be magnetized by the excitation coil in the following way: torque transmission (via the magnet powder) between the inner and outer parts 10.2 and 101. The fine magnetic powder is magnetized so that it is aligned in a chain shape until a frictional connection is achieved.

In this case, the slip of the magnetic powder clutch 10 can be adjusted and varied by controlling the current in the excitation coil 11 accordingly.

It is clear that in the case of bearing the axle halves 4 and 5 via two radial bearings 6 their tilting is absolutely necessary only insofar as these halves are able to absorb the axial forces of the wheels 2 and 3. It is. For this purpose, it is also possible to provide two mutually resting radial bearings 6 only at the root of the shaft end 4.1, so that the bearings at the ends of the shaft end 4,1 are only radial bearings. It is sufficient as long as the load can be applied in the direction.

[Brief explanation of drawings]

The drawing shows two partially sectional and partially cut away embodiments of a wheel set according to the invention together. Reference numbers in the diagram ■...Axle, 2, 3...Wheel, 4.5...
Axle half body, 4.1...Shaft end, 5.1...
・Axle half end, -6...Radial bearing, 7.
... Pressure ring, 8... Pressure disk,
9...Spacer sleeve, 10...Magnetic powder clutch, 10. I...Clutch outer part, 10
2... Inner portion, 10.3... Operating gap, 11
...Exciting coil, 12...Closing cover

Claims (3)

[Claims] (1) having wheels with contoured running surfaces firmly fixed on two separate axles, each one of which wheels being subordinate to an axle half, the range of the axle being By inserting a radial bearing in between which absorbs the radial forces of both wheels, on the one hand both axle halves are themselves rotatable and cannot slide relative to each other, and in said range one axle half is The shaft end is inserted into the other axle half in the form of a hollow cylinder at least towards the center of the wheel, and on the other hand both axle halves are provided with a shaft for adjusting the rotational speed difference of the wheels. Rail running vehicles in which the force is tightly coupled through a clutch, both clutch parts being magnetizable powder and defining an operating gap concentric to the axle. In this wheel set, the hollow cylinder-shaped axle half end (5.1)
The inner part (10.2) of the clutch (10) is designed as the casing of the outer part (10.1) of the clutch (5.1/10.1) or as the outer part (5.1/10.1) of the clutch (10). 1) A set of wheels characterized by being firmly fixed on the top. (2) End and root for a hollow cylindrical axle half characterized in that the inner part (10.2) of the clutch (10) is provided centrally between both bearings (6); A wheel set according to claim 1, having a shaft end supported on the wheel. (3) The hollow cylindrical axle half end (5.1) is supported via the closing cover (12) of the clutch (10) on a bearing (6) provided at the root of the shaft end. A wheel set according to claim 1 or 2, characterized in that: