DE3440570A1 - Elastic bearing for rails - Google Patents

Abstract

The invention relates to an elastic bearing for rails, consisting of an upper support plate and a bottom plate, between which a rubber support bearing, which can be adjusted to different pretension levels, and a rubber tensioning bearing, which creates a pretension, are arranged, and a bolt holding together the support plate and the bottom plate is arranged in the tensioning bearing.The essential feature of this bearing is that at the upper end the bolt sits with a wide top edge on the rubber body of the pretensioning bearing and at the lower end is supported with a laterally projecting bar piece on the bottom plate.

Description

PHOENIX - SMPFÄNGER HAMBURG 90 3LAT SHARED COMPANY HAMBURa-HAHBURG

^Px ~ - "p. 11.1984

Elastic bearing for rails

The invention relates to an elastic bearing for rails consisting of an upper support plate and a base plate, between which a rubber support bearing adjustable to different preload and a tensioning rubber tensioning bearing are arranged, and arranged in the radial insert ball bearing a support plate and the bottom plate holding together bolt is.

An elastic bearing of this type is described in DE-OS No. 30 33 6O7. Such a rail bearing is used where rails are arranged directly on a hard surface or on fixed sleepers are. Such an elastic rail bearing can be adjusted to a pre-tension which can be set in advance. This setting enables the effective absorption of all kinds of vibrations at the same time significant attenuation and isolation. The preload is chosen so that a certain in the camp Spring constant arises at which the essential parasitic vibrations are suppressed due to a lack of resonance,

In the case of the bearing described, the bolt provided for the tensioning element is fastened by means of a screw connection. Included the bolt must be brought into position from the underside of the base plate. The desired preload in the radial insert ball bearing is then effected by a precisely prescribed screw position on the bolt.

584.163 3C0O. 2S0I2

PHOENIX - "EIiS ^ XiGER" HAMBURG SO SLA "* SHARED COMPANY. ~ - HAMBURS-HARBURQ

Px ^: "11/5/1984 34405J0

. 3 ·

Difficulties can arise here because they are in place and place intended particular attitude of the mother cannot be checked with sufficient accuracy on the bolt. Installation instructions can therefore be avoided because of inadequate Expertise may not be carried out with due care. Also is the insertion of the bolt disadvantageous from the underside of the base plate »

The object of the invention is to provide a change in this bolt in such a way that a different one Pre-tension adjustment from the setpoint cannot occur. The insertion of the bolt should be practicable be that errors are not possible, but at least easily recognizable immediately. This will make the optimal Setting of the bearing with the precisely intended preload achieved with certainty.

The solution to this problem is that the bolt at the upper end sits with a wide head edge on the rubber body of the preload bearing and at the lower end End is supported with a laterally protruding bolt part in the base plate.

Such a bolt, in particular forged, can alas without further ado into its position and after a rotation of about 90 ° it has exactly that in its position Bias result, which is provided for the bearing in question. To enable adjustment, can there are bolts of different lengths that are temporarily marked, for example by coloring. By this coloring and the arrangement of the bolt in its position can be recognized immediately its correct position.

PHOENIX nMrFXXaER HAMBURG 90 SHARED COMPANY HAMBURG-HARBURG -

Px 11/5/1984 3440 ^ 70

• I «. ·

It is also possible that the head edge of the bolt with . one * or more washers of a given thickness is highlighted. In this' pill, bolts become more consistent Used for a long time. The different pretensioning, if this is desired, is then carried out by the Achieved in between the accumulation of metallic ring disks. .The washers can be of different thicknesses » or several washers can be used on one bolt. In this way everyone can suitable prestressing states are generated in the prestressing elements.

Another possibility to vary the bolt length without accidentally wrong adjustment, can be achieve that the underside of the head edge or the Top of the bolt part with different heights Rest steps is equipped. The locking steps can be graduated from millimeter to millimeter. At the position of the bolt head can be related to a marking then clearly the intended preload can be checked.

All these different length variations of the bolt make sure that a subsequent accidental Adjustment is excluded. At the same time, the correct setting can also be carried out quickly in any case and safely checked after the bearing is installed. Finally, a subsequent turnaround is also required Correction of the preload is easily possible. With such a designed bolt with equipment accessories the laying of the rail and the fastening of the bearing is very simple and with little Funds possible.

5S4.1S3 JOOO 2S012 ·

PHOENIX - .EUBBtNQER. . HAMBURG 30 U AKTIENGESELLSCHAFT ^ HAMBUBG-HARBURG ■ - - -

Px ~~~ 5.11.198 ^ 34405 ¹ JO

The monitoring during laying can be kept to a minimum can be reduced · Xn usually a precautionary measure is sufficient short follow-up check.

The invention is described, for example, in connection with a drawing. This shows in figure -

1 shows a cross section, in FIG. 2 a top view and in Figure 3 is a partial view.

According to Figure 1, the bearing consists of a base plate 1 and a support plate 2. A support bearing 3 and a preload bearing k are provided between them. The preload in the bearing 4 brings the support bearing into a very specific state of tension in order to obtain a very specific spring constant. This ensures that, in the event of certain vibration effects, extensive structure-borne noise insulation occurs, since the vibrations thereof are outside the natural frequency of the support bearing 3. The natural frequency is set in such a way that it cannot get into resonance vibrations with the usual vibrational influences. In each bearing there are preferably ft support bearings and

2 radial insert ball bearings available. In the radial insert ball bearing k, which is essential in the .. * invention, the rubber bodies 5 and 6 are separated by a metal washer 7 to increase the load-bearing capacity. The bearing is put under tension by means of a bolt 8. The bolt 8 has a wide head edge and thus sits on the rubber body 5. At the lower end, the bolt 8 has a cone 10 which, by rotating the bolt about its axial direction, leads to a support against the base plate 1.

PHOENIX "RECEIVER HAMBUHQ M SHEET SHARED COMPANY HAMBURQ-HARBURQ

Px .. "5.11.1984 3U0970

.6 ·

The given length of this bolt creates a certain one initially variable but predetermined preload. The variation of this bias can be achieve that under the head edge 9 a disk 11 is inserted. Furthermore, it is also possible to participate in the _ Provide locking steps on the underside of the head edge or on the top of the locking part, the settings on different Enable heights.

From Fig. 2 it can be seen that the fastening means of the lower plate 1 are designed as tabs 11 '· These have grooves that secure the base plate on different widths of base. The head 9 of the bolt has a notch 12 from which the position of the bolt can be recognized. The head itself is covered by a cover 13.

In Fig. 3 it can be seen that a bolt Ik by turning 90 leads to a fixation of the bolt. This bolt can get under the base plate I through a recess 15.

> * ■ ( 163 2000 16012

Claims (3)

PHOENIX. - .ÖMPFSSQER '"- HAMBURG 90 31ΛΤΤ AKTIENGESELLSCHAFT - - ... I HAMBURQ-HARBURQ - -. -" -. * Px 11/5/1984 / υ Elastic bearing for rail requirements 1.) Elastic bearing for rails consisting of an upper support plate and a base plate, between which a rubber support bearing adjustable to different preload and a rubber tensioning bearing generating a preload are arranged, and in the
Insert bearing a bolt holding the support plate and the base plate together is arranged, thereby
characterized in that the bolt (8) at the upper end
with a wide head edge (9) on the rubber body (5) of the preload bearing and on the lower
End with a laterally protruding bolt part
(10) is supported on the base plate (l). 2.) Elastic bearing according to claim 1, characterized in that that the head edge (9) of the bolt (8) with one or more annular disks (ll) predetermined Thickness is underlaid. 3.) Elastic bearing according to claims 1 and 2, characterized in that the underside of the head edge (9) or the top of the locking part (10) equipped with different high locking levels
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