KR20070113250A - Oscillation absorber system - Google Patents

Abstract

The invention relates to an oscillation absorber system for mounting at least one oscillation absorber (1, 2) on a rail (5, 6, 7) comprising a ribbed plate (8a) provided with two substantially parallel ribs (10a) embodied on a top surface which can be mounted under the rail foot (7) in such a way that the rib (10a) is arrangeable on both sides of the rail (5, 6, 7); a first support profile (3a) which is mountable on one of the ribs (10a) in order to be carried by the rail foot (7); a second support profile (3a) which is mountable on the second rib (10a) in order to be carried by said rail foot (7); a first clamping device (4a) is pinched to the first end between the two support profiles (3a) and the rail foot (7) and is arrangeable, being pressed to the other end, against the rail stem (6) and a first oscillation absorber (2) is mountable on the surface of the first clamping device (4a) which is opposite to said rail stem (6), wherein the first clamping device (4a) forms an angular plate with the first and the second, bent thereto, areas (41, 42) and the first oscillation absorber (2) is arrangeable on the second area (42).

Description

Reducer system {OSCILLATION ABSORBER SYSTEM}

The invention relates to a reducer device for fitting at least one oscillation absorber to a rail, which is claimed in the preamble of claim 1 and known as DE 299 09 351 U1.

A reducer device is known from German Utility Model DE 297 14 904 U1, which allows the first reducer to be fitted to the rail foot and the second reducer to the rail web.

DE 31 13 268 C2 is suitable for this purpose and structure-borne sound absorption, and can be fitted to the body, which is tapered in the direction of wave propagation and attenuated by applying force at least at the wide end, A reducer with a horn shaped waveguide with damping material at least in the region of the narrow end is presented. The waveguide has a layer sequence in which the flexible spring member and the rigid mass member alternately appear in the direction of wave propagation, and the spring constant of the spring member and the mass of the mass member decrease continuously from the wide end of the waveguide.

4 shows a schematic side view of a rail of the reducer device known from German Utility Model DE 297 14 904 U1.

This system is especially used to absorb vibrations on iron rails or tramway rails. In this way, the structural sound generated by the rail and the airborne sound generated by the rail are reduced.

The reducer 1 is fitted and attached under the rail bottom 7 by applying a force to damp the vibration in the vertical direction. It is attached to a rigid metal plate 8 ', into which individual spring mass systems in the form of waveguides that taper in the direction of wave propagation are fitted. The metal plate 8 'is connected to the lower rail 7 by a support bracket 3'.

Another reducer 2 is fixed to the rail web 6 with clamping and / or spring members 4 'to damp horizontal vibrations in the rail head 5 and web 6.

The base plate 9 ', which comprises a rigid metal plate such as the first reducer 1 and which causes very good vibrations, i.e. absorbed vibrations, coupled to the rails due to this type of accessory, is directly connected to the reducer system because of its very tight connection. Is introduced. The uneven area on the rail has no effect on the effect of the reducer because of the rigid structure of the base plate of the reducer.

This known reducer device has some disadvantages of installation difficulty, and has the disadvantage that a large lateral force is applied to the attachment screw connecting the clamping bracket 3 'to the base plate 8'.

5 is a schematic side view parallel to the rail of the reducer device known from German Utility Model DE 299 09 351 U1.

The reducer device shown in FIG. 5 has a rib plate 8 arranged below the rail bottom 7, with two ribs 10 necessarily arranged parallel to both sides of the rail. The reducer 1 is arranged below the rib plate 8 in the direction transverse to the rail. The support bracket 3 is fitted to each of the two ribs 10 by means of a screw bolt 12 fixed to the rib 10 and a corresponding screw nut 11.

The right support bracket 3 shown in FIG. 5 is supported directly on the rail bottom 7. The right support bracket 3 shown in FIG. 5 is supported at the first end of the clamping bracket 4, which presses another reducer 2 against the rail web 6. The first end of the clamping bracket 4 is supported by a rail located below it. In this case, the reducer 2 is mounted to the base plate 9 by screwing, for example, and the clamping bracket 4 presses the base plate 9.

FIG. 6 is a schematic side view of the rail of the reducer device known from German Utility Model DE 299 09 351 U1 viewed from right angle. FIG.

As can be seen in FIG. 6, the clamping bracket 4 is bent in a y-shape to unfold, the two unfolded ends pressing against the outer end of the base plate 9, and the reducer 2 of the clamping bracket 4. It is arranged between these extended ends.

Known reducer devices can slide or break after being loaded for a relatively long time.

The present invention is therefore based on the object of providing a reducer device which can be fitted, easily removable and which is more robust and in operation.

1 is a schematic side view parallel to the rail of one embodiment of the reducer device according to the invention.

2 is a schematic side view viewed at right angles to a rail of an embodiment of the reducer device according to the invention.

FIG. 3 is a schematic plan view of an embodiment of the reducer device according to the present invention as compared to two conventional reducer devices as shown in FIGS. 1 and 2.

4 is a schematic side view parallel to the rail of a conventional reducer device.

5 is a schematic side view parallel to the rail of the reducer device known from German Utility Model DE 299 09 351 U1.

FIG. 6 is a schematic side view viewed at right angle to the rail of the reducer device known from German Utility Model DE 299 09 351 U1. FIG.

Reducer  Device

Reference list

1, 2 reducer

3, 3 'support bracket

3a support profile

4, 4 'Clamping Bracket

4a clamping device, angled plate

5 rail head

6 rails website

7 rail bottom

8, 8a rib plate

9 base plate

10, 10a rib

11 nuts

12 bolts

21,22, 23, 31, 32 attachment points

A old device

N new device

20, 21a mounting screw

20a screw hole

13 washers

15 volts

16 holes

41, 42 1st, 2nd area

19 Bolt Head

19a cutout

The concept on which the invention is based is that the first clamping device is an angled plate having a first area and a second area angled therefrom, wherein the first reducer can be fitted to the second area. This means that no base plate for the reducer is needed, allowing the reducer to obtain a simpler and more robust structure, which provides a large damping effect since it is separated from the rail web only by the second region of the clamping device. The flat configuration of the clamping device improves rigidity and prevents upward slipping.

Also the reducer device according to the invention with the features of claim 1 can be easily fitted and removed. In particular, where the rib plate is used, it is only necessary to remove the support bracket attachment screw and fix it to the clamping bracket under the support bracket. In this case, the reducer device according to the present invention can be manufactured at low cost because it uses a rib plate which is generally used when mounting a rail to a wooden sleeper.

Likewise, with this type of installation, this attachment has already been used on tracks for a very long time, which generally has the advantage of using a corresponding installation tool. The above advantages lead to much faster assembly. Tests have shown that the new reducer can be installed faster than conventional reducers because of its simplicity.

The rigidity of the clamping connection means a reduction in the lateral force on the attachment screw. In the case of rigid rib plates, this leads to a much higher clamping force of the reducer on the rails. This further enhances the effect of the reducer. The lateral installation of the foot absorber makes it possible to fit the rail reducer even if the slipper separation is very small.

Advantageous developments and improvements of the invention can be seen in the dependent claims.

According to a preferred development, the first reducer can be screwed into the second region from the side facing away from the rail web.

According to another preferred development, the outside of the ribs borders the rib plate in a U shape, the inside of which is located under the rail.

According to another preferred development, the first and second supporting profiles are L-shaped, one of the L-shaped portions extends coplanar with the outside of the rib, and the other L-shaped portion is pressed into the first region. Can be.

According to another preferred development, the second reducer can be fitted to the lower face of the rib plate.

According to another preferred development, the second reducer is narrower than the rib plate.

According to another preferred development, a second cranking device is provided, which can be secured to the first end between the other of the two support profiles and the rail bottom, pressurizing the rail web at the second end and the third reducer It may be arranged to be fitted to the side of the second clamping device facing the direction away from.

According to another preferred development there is an engagement device in which the first region and the first support profile counteract the sliding of the first clamping in at least the direction of the rail head. This significantly increases the stiffness.

According to another preferred development, the engagement device has bolts in the first support profile and holes in the first area, which can engage each other.

According to another preferred development, one rib has a cutout into which the threaded bolt head of the threaded bolt can be inserted, whereby the first support profile can be fitted to one of the two ribs.

In the following embodiments of the invention are described in more detail and shown in the drawings.

The same reference numbers in the drawings represent the same or functionally identical members.

1 is a schematic side view parallel to the rail of one embodiment of the reducer device according to the invention.

In Fig. 1, reference numeral 5 denotes a rail head, 6 denotes a rail web, and 7 denotes a rail bottom. In order to damp the vibration in the vertical direction, the reducer 1 is fitted and mounted under the rail lower portion 7 by applying a force, and screwed to the rib plate 8a from below by an attachment screw 21a. The width of the reducer 1 is designed such that its side does not protrude beyond the rib 10a of the rib plate 8.

The rib plate 8a has a U-shaped cross section which encloses the rail lower part 7 and is demarcated by the rib 10a mounted thereon. The rib plate 8a is mounted to the bottom of the rail by two L-shaped support profiles 3a. Two L-shaped support profiles 3a are mounted to the rib plate 8a by a screw nut 11 and a screw bolt 12. The spring washer 13 is located between the screw nut 11 and each L-shaped support profile.

In each case a clamping device 4a in the form of an angled plate is fixed between the rail bottom 7 and each L-shaped support profile 3a. Each angular plate 4a has a flat first trapezoidal area 41 and a flat second rectangular area 42, the first area 41 being pressed against the rail bottom 7, and the second area 42. Is pressed against the rail web 6.

The reducer 2 is screwed into each second region 42 from the outside, and the attachment screw 20 ends in the screw hole 20a in the region 42.

The L-shaped support profile 3a extends outwardly in the same plane as the rib 10a of the rib plate 8. This makes it possible to advantageously reduce the shear stresses occurring in the design shown in FIG. 5, in which the support profile 3 is U-shaped, likewise on the rib plate 10 on the outside of the rib 10. Supported.

In order to prevent the clamping device 4 in the form of an angled plate from sliding upwards in the direction of the rail head, the angled plate has holes 16 which guide the bolts 15 and are provided in the L-shaped support profile 3a.

By fitting the reducer 2 directly to the angled plate 4a with a screw bolt 20, a more compact fit and more effective vibration damping are permitted than in the conventional case shown in FIG. 6, in which the clamping device 4 ) Is a Y-shaped bracket and the end of the Y is screwed into the base plate of the reducer.

In the design according to this embodiment, the reducer 2 is located on the rail web 6 over virtually the entire length, thus providing optimum damping.

Figure 2 is a schematic side view in a direction perpendicular to a rail of an embodiment of the reducer device according to the invention.

As can be seen in FIG. 2, the rib 10a of the rib plate 8a has a cutout 19a into which the threaded bolt head 19 of the screw bolt 12 is inserted, resulting in a support profile. 3a is easily fitted to the rib plate 8a.

The embodiment of the reducer device according to the invention as a whole provides significantly greater simplicity than existing solutions. This is particularly advantageous for the maintenance of rails and track beds.

3 is a schematic plan view of an embodiment of the reducer device according to the invention as compared to two existing reducer devices, as shown in FIGS. 1 and 2.

Reference numeral A in FIG. 3 schematically shows the existing reducer device shown in FIG. 4 in a fitted state. In this case, 21, 22 and 23 represent the point of attachment. In a conventional reducer arrangement, two clamping springs 4 'with threaded connections on opposite sides corresponding to attachment points 23 are required and attached to attachment points 21, 22. In addition, the conventional reducer device shown in FIG. 4 required a large space in the rail direction because the base plate 8 'had to have a length such that two attachment points 21 and 22 were placed thereon.

In contrast, as described above, the reducer device denoted by N according to DE 299 09 351 U1 can be arranged in a transverse form with respect to the rail. This is feasible since the clamping bracket 4 is extended so that only one attachment point 31 is required to fix the clamping bracket 4. Another attachment point 32 corresponds to an existing attachment point 23. With this arrangement it is therefore possible to deploy two web reducers using only two attachment points. It is also possible to use narrower rail compartments to fit the reducer.

The reducer device labeled N 'according to the above-described embodiment can also be arranged in a transverse form with respect to the rail, resulting in significantly narrower and more compact. This is because only one attachment point 31 is required to fix the clamping profile 3a for the clamping plate 4a, and the clamping profile 3a and the rib plate 8a are smaller than the clamping bracket 4.

Overall, the present invention is considerably simplified with regard to the fitting and accommodation of the reducer device for rails.

Although the present invention has been described above with reference to one preferred embodiment, it is not limited thereto and may be modified in various ways.

In particular, the clamping bracket, the support bracket, and the reducer may have different shapes.

In the above embodiment, the end of the reducer 2 protrudes slightly off the side end of the second region 42 of the angled plate 4a, but it is also possible for the reducer 2 to be located completely within this region.

Further, the first region 41 of the angled plate 4a does not necessarily have a trapezoidal shape as shown, but may have a rounded shape or other polygonal shape.

In this embodiment the engagement device has bolts in the first support profile and holes in the first area, which can be engaged with each other, but the invention is not so limited. Any convex and concave areas that can be engaged with one another to provide the desired stiffness are possible for the clamping profile and the support profile if necessary.

Claims (10)

As an oscillation absorber arrangement for fitting at least one reducer (1, 2) to the rails (5, 6, 7), Two parallel ribs provided on the top surface and capable of being fitted under the rail foot 7 so that ribs 10a are disposed on both sides of the rails 5, 6, 7 Rib plate 8a having 10a); A first supporting profile (3a) that can be fitted to one of the two ribs (10a) for support to the rail bottom (7); A second support profile (3a) that can be fitted to the other of the two ribs (10a) for support to the rail bottom (7); Can be secured to the first region 41 between one of the two support profiles 3a and the lower rail 7, and to press the rail web 6 in the second region 42. A first clamping device 4a, which can be arranged; And With a first reducer 2 which can be fitted to the side of the first clamping device 4a facing away from the rail web 6, The first clamping device 4a is an angled plate with a first area 41 and a second area 42 angled therefrom, Reducer device, characterized in that the first reducer (2) can be fitted to the second area (42). The method according to claim 1, The reducer device, characterized in that the first reducer (2) can be screwed into the second region (42) from a side facing away from the rail web (6). The method according to claim 1 or 2, Reducer device, characterized in that the outer side of the rib (10a) borders the rib plate (10) in a U-shape, the inner side is located in the lower rail (7). The method according to any one of claims 1 to 3, The first and second support profiles 3a are L-shaped, one L-shaped member extends coplanar with the outside of the rib, and the other L-shaped member can be pressed into the first region 41. Reducer device characterized in that. The method according to any one of claims 1 to 4, Reducer device, characterized in that the second reducer (1) can be fitted to the lower surface of the rib plate (8a). The method according to claim 5, The reducer device, characterized in that the second reducer (1) is narrower than the rib plate (8a). The method according to any one of claims 1 to 6, A second clamping device 4a is provided, which can be secured at the first end between the other one of the two support profiles 3a and the lower rail 7 and at the second end the rail web 6 ), And a third reducer (2) can be fitted to the side of the second cranking device (4a) facing away from the rail web (6). Device. The method according to any one of claims 1 to 7, The first region 41 and the first support profile 3a have engagement devices 15, 16 which react at least to the sliding of the first cranking device 4a in the direction of the rail head 5. Reducer device, characterized in that. The method according to claim 8, The engagement devices 15, 16 have bolts 15 in the first support profile 3a and holes 16 in the first region 41, which can be engaged with one another. Reducer device. The method according to any one of claims 1 to 9, One rib 10a can be inserted with a threaded bolt head 19 of the threaded bolt 12 so that the first support profile 3a can be fitted to one of the two ribs 10a. Reducer device characterized in that it has a cutout (19a).