阅读说明：本技术 轨道车辆的具有在端部链节上缩小的磨损部分的链式磁轨制动装置 (Chain-type magnetic rail brake device for a rail vehicle having a reduced wear portion on the end links ) 是由 M·卡桑 于 2018-07-13 设计创作，主要内容包括：本发明涉及一种轨道车辆的链式磁轨制动装置,所述链式磁轨制动装置具有至少一个由链式磁体(2)形成的制动磁体,所述链式磁轨制动装置至少具有以下特征：链式磁体(2)具有一个电磁线圈体(8)、至少一个磁芯(7)、两个与电磁线圈体(8)刚性连接的端部链节(14、15),每一个端部链节(14、15)具有一个端部链节磁芯(7),所述电磁线圈体(8)具有至少一个上托架(30)和至少一个下托架(32),所述上托架与下托架在其之间构成通孔(13),所述端部链节磁芯(7)在垂直于电磁线圈体(8)的纵向方向设置的横截面中观察时构成为马蹄铁形,所述端部链节磁芯具有一个腹板(17)和两个背离所述腹板(17)延伸的腿部(19a、19b),其中,在腿部(19a、19b)的指向轨道(1)的端部上构成有设置用于与轨道(1)摩擦接触的极靴(16a、16b),所述腹板(17’)横向穿过电磁线圈体(8)的通孔(13)延伸。按照本发明规定：端部链节磁芯(7)具有一体的端部链节磁芯上部(20),所述端部链节磁芯至少包括所述腹板(17)和腿部(19a、19b)的至少一个在装配状态中上部的第一部件(21a、21b),在所述端部链节磁芯上部上分别可拆卸地紧固有腿部(19a、19b)的在装配状态中下部的且单独的第二部件(23a,23b),在所述第二部件的自由端构造有腿部(19a、19b)的极靴(16a、16b)。(The invention relates to a chain-type magnetic rail brake device for a rail vehicle, comprising at least one brake magnet formed from chain-type magnets (2), said device being characterized in that: the chain magnet (2) has an electromagnet coil body (8), at least one magnetic core (7), two end links (14, 15) rigidly connected to the electromagnet coil body (8), each end link (14, 15) having an end link magnetic core (7), the electromagnet coil body (8) having at least one upper bracket (30) and at least one lower bracket (32) which form a through-opening (13) between them, the end link magnetic core (7) being formed in the shape of a horseshoe, viewed in a cross-section arranged perpendicular to the longitudinal direction of the electromagnet coil body (8), having a web (17) and two legs (19a, 19b) extending away from the web (17), wherein pole shoes (16a, 19b) arranged for frictional contact with the rail (1) are formed on the ends of the legs (19a, 19b) pointing toward the rail (1), 16b) The webs (17') extend transversely through the through-openings (13) of the solenoid body (8). According to the invention: the end-link magnetic core (7) has an integral end-link magnetic core upper part (20) which comprises at least one first, in the assembled state, upper part (21a, 21b) of the web (17) and the legs (19a, 19b), to which a second, in the assembled state, lower and separate part (23a, 23b) of the legs (19a, 19b) is fastened in a detachable manner, in each case, and at whose free ends pole shoes (16a, 16b) of the legs (19a, 19b) are formed.)

1. A chain-type magnetic track brake device of a rail vehicle having at least one brake magnet formed of a chain-type magnet (2), having at least the following features:

a) the chain magnet (2) comprises an electromagnet coil body (8), at least one magnetic core (7), two end chain links (14, 15) rigidly connected to the electromagnet coil body (8), a plurality of intermediate chain links (6) each connected to the electromagnet coil body (8) in a rotationally fixed manner and arranged one after the other in the longitudinal direction of the electromagnet coil body (8), and a plurality of separating walls (10), wherein a separating wall (10) is arranged between each two adjacent intermediate chain links (6),

b) the electromagnetic coil body (8) carries at least one electromagnetic coil winding (9),

c) each end link (14, 15) has an end link magnetic core (7),

d) the solenoid body (8) has at least one upper carrier (30) and at least one lower carrier (32) which form a through-opening (13) between them,

e) the end-link magnetic core (7), as viewed in a cross-sectional plane arranged perpendicular to the longitudinal direction of the solenoid body (8), is of horseshoe shape and has a web (17) and two legs (19a, 19b) extending away from the web (17), wherein pole shoes (16a, 16b) arranged for frictional contact with the rail (1) are formed on the ends of the legs (19a, 19b) pointing towards the rail (1),

f) said web (17') extending transversely through the through-opening (13) of the solenoid body (8), characterized in that,

g) the end-link magnetic core (7) has an integral end-link magnetic core upper part (20) which comprises at least the web (17) and at least one first component (21a, 21b) which comprises a leg (19a, 19b) and which comprises an upper part in the assembled state, to which a second, lower and separate component (23a, 23b) of the leg (19a, 19b) is fastened in each case detachably, and at the free end of which the pole shoes (16a, 16b) of the leg (19a, 19b) are formed.

2. Chain track brake device according to claim 1, characterized in that the end link core upper part (20) extends a distance downwards in the vertical direction over the lower bracket (32) when seen in the assembled state.

3. Chain track brake device according to claim 1 or 2, characterized in that the end link core upper part (20) extends at least upwards in the vertical direction over the lower end of the upper bracket (32) delimiting the through hole (13) when viewed in the assembled state.

4. Chain track brake device according to one of the preceding claims, characterized in that at least one blocking plate (28) is detachably fastened to at least one rail-facing surface (40) of the upper end-link core part (20).

5. Chain type magnetic track brake device according to claim 4, characterized in that the blocking plate (28) is detachably fastened to a lifting device by means of which the chain type magnet (2) can be vertically adjusted.

6. Chain track brake device according to one of the preceding claims, characterized in that the upper first part (21a, 21b) of the leg (19a, 19b) has a stepped first separating surface (42) and the lower second part (23a, 23b) of the leg (19a, 19b) has a stepped second separating surface (44), wherein the stepped first separating surface (42) is formed complementary to the stepped second separating surface (44) and engages in one another.

7. Chain track brake device according to one of the preceding claims, characterized in that the lower second parts (23a, 23b) of the leg sections (19a, 19b) are configured to extend curved inwards when viewed in a cross-sectional plane arranged perpendicular to the longitudinal direction of the solenoid body (8).

8. Chain track brake device according to one of the preceding claims, characterized in that a horizontal threaded section (46) is provided, by means of which the upper first parts (21a, 21b) of the leg sections (19a, 19b) and the lower second parts (23a, 23b) of the leg sections (19a, 19b) are screwed to each other in the assembled state.

9. Chain track brake device according to one of the preceding claims, characterized in that an electrical connection device (26) for a first cable (50) is provided in or on at least one upper end-link core part (20), through which electrical connection device the at least one solenoid winding (9) is supplied with current.

10. Chain track brake device according to claim 9, characterized in that the electrical connection device (26) is arranged on the side (54) of the upper end-link core part (20) and/or on the surface (40) facing away from the rail (1).

11. A chain track brake device according to claim 10, characterized in that the electrical connection device (26) has an electrical connection (22) in a recess (52) on a side (54) of the end-link core upper part (20), to which connection a first cable (50) is connected, which is guided through a bore (56) which is formed in the rail-facing surface (40) of the end-link core upper part (20) and opens into the recess (52).

12. Rail vehicle with at least one chain-type magnetic track brake device according to at least one of the preceding claims.

Technical Field

The invention relates to a rail vehicle with a chain-type magnetic track brake device according to the preamble of claim 1, having at least one brake magnet formed from chain-type magnets, and a rail vehicle with such a chain-type magnetic track brake device according to claim 12, having at least the following features: the chain magnet has a solenoid body, at least one magnet core, two end links rigidly connected to the solenoid body, and a plurality of intermediate links which are each connected to the solenoid body in a rotationally fixed manner and which are arranged one behind the other, viewed in the longitudinal direction of the solenoid body, and a plurality of separating walls, wherein a separating wall is arranged between two adjacent intermediate links, wherein the solenoid body carries at least one solenoid winding, wherein each end link has an end link magnet core, wherein the solenoid body has at least one upper and one lower carrier which form a through-opening between them, wherein the end link magnet core, viewed in a cross-sectional plane arranged perpendicular to the longitudinal direction of the solenoid body, is formed in the shape of a horseshoe, wherein the end link magnet core has a web and two legs which extend away from the web, the end of the leg facing the rail is provided with a pole shoe for frictional contact with the rail, and the web extends transversely through the passage opening of the solenoid body.

Background

The main force-generating component of the electric magnetic track brake device is a brake magnet. In principle, the braking magnet is an electromagnet which comprises an electromagnetic coil extending in the rail direction, which is carried by an electromagnetic coil body, and a horseshoe-shaped magnetic core. The horseshoe-shaped magnetic core forms a pole shoe on its side facing the vehicle track. The direct current flowing in the electromagnetic coil generates a magnetic voltage which generates a magnetic flux in the magnetic core, which is short-circuited by the rail head as soon as the braking magnet is placed with its pole shoe on the rail. Thereby, a magnetic attraction force is generated between the braking magnet and the rail. Due to the kinetic energy of the moving rail vehicle, the magnetic track brake is pulled along the rail by the driver. Here, the braking force is generated by a combination of the sliding friction between the braking magnet and the rail and the magnetic attraction force. By frictional contact with the rail, frictional wear occurs on the pole shoes of the brake magnets, which must not exceed a maximum degree of wear, since otherwise the solenoid body would be damaged.

In principle, two different types of magnetic track brake devices can be distinguished according to their structural design.

In one aspect, the magnetic rail brake device can be a rigid magnetic rail brake device in which the brake magnet is a rigid magnet, wherein the brake magnet has an electromagnet coil body which is screwed to two parts of the magnetic core which are separated in the region of the pole shoes of their legs in the longitudinal direction by an intermediate body made of a non-magnetic material in a gap. The non-magnetic material of the intermediate body serves to avoid magnetic short-circuiting between the pole shoes. Rigid magnetic track brake devices are used primarily in short-haul traffic on streets and urban roads.

Furthermore, a chain-type magnetic track brake device discussed herein is known that has a chain-type magnet as a brake magnet in which an electromagnetic coil body has a plurality of partition walls and chambers provided between the partition walls. The magnetic cores are held in a limited movement in the chambers between the separating walls, the magnetic cores being aligned during the braking process in order to be able to better track irregularities on the rail head. In this case, the pole shoes are formed on the end faces of the magnetic cores of the intermediate links facing the rails. The chain type magnetic track brake device is used as standard in a standard gauge railway area.

The magnitude of the braking force of the magnetic rail brake device is furthermore dependent on the magnetic flux of the magnetic circuit (i.e. also on the geometry of the magnetic core or cores), the magnetomotive force and the friction ratio between the brake magnet and the rail.

A chain-type magnetic track brake device of the generic type or such a rail vehicle is known, for example, from DE 102004018008B 3. The end links have end link cores, in which integral legs extend as far as the upper bracket of the solenoid body and are fastened laterally to webs of through-holes penetrating the solenoid body.

Disclosure of Invention

In contrast, the object of the present invention is to further develop a chain-type magnetic track brake device of the type mentioned at the outset in such a way that its operating costs are reduced. Furthermore, it should also be possible to supply the current to the solenoid coil winding as simply as possible. Finally, a rail vehicle having such a chain-type magnetic track brake device should also be provided.

This object is achieved by the devices described in claims 1 and 9.

Further advantageous embodiments and further developments of the invention result from the dependent claims.

The invention is based on a chain-type magnetic rail brake device for a rail vehicle, having at least one brake magnet formed from chain-type magnets, which has at least the following features: the chain magnet has a solenoid body, at least one magnet core, two end links rigidly connected to the solenoid body, and a plurality of intermediate links which are each connected to the solenoid body in a rotationally fixed manner and which are arranged one behind the other, viewed in the longitudinal direction of the solenoid body, and a plurality of separating walls, wherein a separating wall is arranged between two adjacent intermediate links, wherein the solenoid body carries at least one solenoid winding, wherein each end link has an end link magnet core, wherein the solenoid body has at least one upper and one lower carrier which form a through-opening between them, wherein the end link magnet cores are formed in the shape of a horseshoe, viewed in a cross-sectional plane which is arranged perpendicular to the longitudinal direction of the solenoid body, and wherein the end links have a web and two legs which extend away from the web, the end of the leg facing the rail is provided with a pole shoe for frictional contact with the rail, and the web extends transversely through the through-hole of the solenoid body.

According to the invention: the end-link magnetic core has an integral end-link magnetic core upper part, which comprises at least a first part of the web and at least one of the legs which is upper in the assembled state, to which a second part of the legs which is lower in the assembled state and is separate is fastened in each case in a detachable manner, and at the free end of which the pole shoes of the legs are formed.

The upper part of the end-link core fastened to the solenoid body accommodates, for example, the upper and lower brackets of the solenoid body at least partially. For this purpose, the upper end-link core part has, for example, in the assembled state an upper U-shaped recess in the center of the cross section, into which recess the upper bracket of the solenoid body is at least partially inserted. Likewise, the upper end-link core part can have a U-shaped recess in the center of the cross section, which recess is lower in the assembled state, into which recess the lower bracket of the solenoid body is at least partially inserted.

The advantage of the invention is then that the part which is worn down due to friction between the rail and the pole shoe and is therefore to be replaced within a certain time interval is not formed by the entire leg as in the prior art, but only by a separate, lower second part of the leg. As a result, the mass of the parts to be replaced is reduced and the operating costs of the chain type magnetic track brake device are reduced as a result.

Another advantage is that there is then sufficient space on the upper part of the end-link core for mounting therein an electrical connection means, through which the at least one electromagnetic coil winding is supplied with current. The electrical connection means can be arranged, for example, on the side of the upper part of the end-link core and/or on the surface facing away from the rail.

Since the end links are rigidly and not movably connected to the solenoid body like the intermediate links, the intermediate links and in the present invention, in particular the upper end of the core of the end links, are suitable for arranging the electrical connection device.

The measures cited in the dependent claims make it possible to realize advantageous further developments and improvements of the invention specified in claim 1.

Preferably, the end link core upper portion extends vertically downwardly beyond the lower bracket a distance when viewed in an assembled state.

The end-link core upper part may also extend in the vertical direction at least upwards beyond the lower end of the upper bracket that defines the through-hole, as seen in the assembled state.

According to a further development, a stop can be fastened detachably to at least one surface of the upper part of the end-link core facing away from the rail. The flap can be detachably fastened to a lifting device, by means of which the chain magnet can be adjusted vertically.

Preferably, the upper first part of the leg has a stepped first separating surface, and the lower second part of the leg has a stepped second separating surface, wherein the stepped first separating surface and the stepped second separating surface are formed complementarily and engage in one another.

According to a further development, the second part of the lower part of the leg can be formed so as to extend in an inwardly curved manner, as viewed in a cross-sectional plane which is arranged perpendicular to the longitudinal direction of the solenoid body.

Preferably, a threaded portion may be provided which is horizontal in the assembled state, with which a first part of the upper part of the leg and a second part of the lower part of the leg are screwed to one another. A horizontal threaded portion means that the screw longitudinal axis of at least one screw of the threaded portion is in a horizontal plane in the assembled state.

According to a further development, an electrical connection device can be provided in or on the upper part of the at least one end-link core, via which electrical connection device the at least one electromagnetic coil winding is supplied with current. The electrical connection device is therefore designed to connect a first cable, which conducts electrical energy from the rail vehicle to the chain track brake device. On the other hand, a second cable is connected to the electrical connection device, said second cable being connected on the other side to the electromagnetic coil winding in order to introduce the electrical energy conducted via the first cable into the electromagnetic coil winding.

The electrical connection device may also have an electrical connection to which a first cable is connected in a recess on the side of the upper part of the end-link magnetic core, said first cable being guided via a bore which is formed in the surface of the upper part of the end-link magnetic core facing away from the rail and which opens into the recess. This results in a particularly compact embodiment of the electrical connection device.

The electrical connection means may be provided on the side of the upper part of the end-link core and/or on the surface facing away from the rail.

The invention also relates to a rail vehicle having a chain-type magnetic track brake device described herein.

Within the scope of the invention, a rail vehicle may represent one or more cars, with or without their own drives and/or traction vehicles, in any combination. In particular, the rail vehicle may have a powered car. The rail vehicle or the car of the rail vehicle can have a bogie on which the axles of the vehicle are arranged. The bogie may be fastened to the vehicle body. The magnetic track brake device described here is then preferably suspended from the bogie.

Drawings

The invention will now be elucidated by way of example with reference to the accompanying drawings by means of preferred embodiments. In the figure:

fig. 1 is a perspective view showing a chain magnet of a chain type magnetic track brake device according to a preferred embodiment;

fig. 2 is a perspective view of an electromagnetic coil body of the chain type magnetic track brake device of fig. 1, the chain type magnetic track brake device having end links rigidly fastened to the electromagnetic coil body;

fig. 3 shows a cross-sectional view of the chain type magnetic track brake device in the use state along the plane III-III of fig. 1;

fig. 4 shows a cross-sectional view of the chain type magnetic track brake device in the use state along the plane IV-IV of fig. 1;

fig. 5 is a perspective view illustrating an end link of a chain magnet of the chain type magnetic track brake device of fig. 1.

Detailed Description

In order to be able to better adapt to the irregularities of the track 1 of the rail, in the embodiment of the chain magnet 2 of the magnetic track brake device, which is preferably designed as a chain magnetic track brake device 4, shown in fig. 1, there are a plurality of intermediate links 6, which are held in a manner that allows limited movement on an electromagnetic coil body 8 extending in the longitudinal direction of the track 1. This is preferably achieved in that the intermediate links 6 have a magnetic core which is suspended in a limited manner, in a tilted or pivotable manner, symmetrically with respect to a vertical center plane, on the sides of the solenoid body 8 facing away from one another, in the chambers 11 formed between the separating walls 10. End links 14, 15 are provided on the end sides of the electromagnetic coil body 8.

In fig. 1, only one chain magnet 2 is shown for dimensional reasons, which interacts with the rail, but the other chain magnet 2, not visible here, is present in mirror symmetry with respect to the perpendicular longitudinal center plane of the two rails of the rail. The two chain magnets 2 are then connected to one another by a cross member, not shown here. The chain magnets 2 are fastened by means of fastening devices, not shown here, to a lifting device which facilitates the vertical travel of the chain magnets 2, in order to bring the intermediate links 6 into contact with the rail heads 18 of the respective rails 1. While the lifting device is held on the bogie of the rail vehicle.

The braking force is then transmitted from the contact point of the intermediate link 6 to the solenoid body 8 via the partition wall 10 and the end pieces 14, 15, which are rigidly connected to the solenoid body 8 and provide good guidance of the chain magnets 2 via the switch points and rail joints. The solenoid coil body 8 carrying at least one solenoid coil 9, which is not visible from the outside, therefore carries the intermediate links 6, which together form the magnetic core of the braking magnet 2.

Fig. 2 shows the solenoid body 8 in a perspective view. The solenoid body 8 serves to accommodate the windings of the solenoid coil 9 required for achieving the necessary electromagnetic flux. The separating walls 10 are distributed at equal distances in a through-opening 13 of the solenoid body 8, which may be oval or rectangular, and are fixed in their position on the solenoid body 8. Between each two of these partition walls 10, a magnetic core of the intermediate link 6, which is horseshoe-shaped in cross section and which accommodates the magnetic flux, is inserted into the through-opening 13. In fig. 2, although the intermediate links are not shown, end links 14, 15 are shown, which are rigidly connected (for example by welding) to the solenoid body 8. The upper bracket 30, the lower bracket 32 and the end links 14, 15 of the solenoid body 8 each have, for example, a U-shaped profile rail, wherein the windings of the solenoid coil 9 are arranged around in a groove-like, outwardly open winding space of the U-shaped profile rail.

As is shown in particular in fig. 3, such end links 14, 15 each have an end link core 7 with a web 17 which passes through the through-opening 13 and is horizontal in the use state, and legs 19a, 19b which project approximately perpendicular thereto vertically downward, i.e. toward the rail head 18 of the rail 1. Thus, such end-link core 7 surrounds lower bracket 32 of solenoid body 8 with web 17 and legs 19a, 19b thereof. At the free ends of the legs 19a, 19b, pole shoes 16a, 16b are formed, which are provided for frictional engagement with the rail head 18 when the lifting device lowers the chain magnet 2 in the direction of the rail.

As can best be seen from fig. 3, the end-link core 7 of the end link 15 has an integral end-link core upper part 20, which comprises at least the web 17 and at least one first part 21a, 21b, which comprises an upper part in the assembled state, of the legs 19a, 19b, to which a lower and separate second part 23a, 23b, respectively, of the legs 19a, 19b in the assembled state is detachably fastened, to the free end of which the pole shoes 16a, 16b of the associated legs 19a, 19b are respectively formed, which pole shoes form the north pole and the south pole of the chain magnet 2. In the released state of the chain-type magnetic track brake device 4, an air gap is present between the pole shoes 16a, 16b and the rail head of the rail.

In fig. 2, the end-link core upper parts 20 of the end links 14, 15 are shown on the solenoid body 8, which are welded to the solenoid body 8, for example.

The pole shoes 16a, 16b are preferably made of a friction material, for example steel, ductile iron or sintered material. A non-magnetic, temperature-resistant intermediate body, not shown here, can be provided in the gap 34 between the two pole shoes 16a, 16b, said intermediate body filling the gap 34.

Preferably, the end-link core upper part 20 extends in the vertical direction downwards over a distance beyond the lower bracket 32 of the solenoid body 8, seen in the assembled state. On the other hand, in the assembled state, the end-link core upper portion 20 extends at least upward in the vertical direction beyond the lower end portion of the upper bracket 30 that defines the through-hole 13. The end-link core upper part 20 has, for example, a U-shaped upper recess 36 in the center of the cross section, into which the upper bracket 30 is at least partially inserted. Likewise, the end-link core upper portion 20 has, for example, a U-shaped lower notch 38 in the center of the cross-section, into which the lower bracket 32 at least partially fits.

Furthermore, a stop 28 is fastened detachably, for example on each of the two free surfaces 40 of the end-link core upper part 20 facing away from the rail. The flap 28 can be detachably fastened to a lifting device, by means of which the chain magnet 2 can be vertically adjusted.

Preferably, the upper first part 21a, 21b of the leg 19a, 19b has a stepped first separating surface 42, while the separate lower second part 23a, 23b of the leg 19a, 19b has a stepped second separating surface 44, wherein the stepped first separating surface 42 and the stepped second separating surface 44 are formed complementarily and engage in one another.

Preferably, the individual lower second parts 23a, 23b of the leg sections 19a, 19b are configured to extend in an inwardly curved manner, as viewed in a cross-sectional plane arranged perpendicular to the longitudinal direction of the solenoid body 8.

Preferably, a threaded portion 46, which is horizontal in the assembled state, can be provided, with which the upper first parts 21a, 21b of the legs 19a, 19b and the separate lower second parts 23a, 23b of the legs 19a, 19b are screwed to one another. The horizontal threaded portion comprises, for example, two cap screws 48 which are passed laterally from the outside through horizontal through-holes in the upper first parts 21a, 21b of the legs 19a, 19b, which are arranged perpendicularly to the longitudinal center plane of the solenoid body 8, and which are screwed into threaded blind holes in the lower second parts 23a, 23 b.

The magnetic core of the intermediate link, which is not shown here, also has a horseshoe-shaped cross section and has a web from which two legs project laterally away downward. The magnetic core is designed in two parts, wherein a first part comprises a first half of a web, a first leg and a first pole shoe, and a second part, separate from the first part, comprises a second half of a web, a second leg and a second pole shoe. The first and second halves of the web of the core then penetrate through the through-opening 13 of the electromagnetic coil body and are fastened to one another by means of a horizontal threaded connection 12, as can be easily imagined by means of fig. 1 and 2.

As can be seen from fig. 4, an electrical connection 26 is provided in the end-link core upper part 20 of the end link 14, via which electrical current is supplied to the electromagnetic coil 9. Thus, a first cable 50 is connected to the electrical connection device 26, which leads electrical energy from the rail vehicle to the chain magnet 2. On the other hand, a second cable, not shown here, is connected to the electrical connection device 26, the other side of which is connected to the electromagnetic coil 9 in order to introduce the electrical energy guided via the first cable 50 into the electromagnetic coil 9.

The electrical connection device 26 can have, in particular, an electrical connection 22 in a recess 52 on a side 54 of the end-link magnetic core upper part 20, to which a first electrical cable 50 is connected, which is routed, for example, through a hole 56, which is formed in the free surface 40 of the end-link magnetic core upper part 20 facing away from the rail and opens into the recess 52. Fig. 5 shows the end link 14 of the chain magnet 2 without the electrical connection device 26 mounted in a perspective enlarged view.

For braking, the two chain magnets 2 of the chain-type magnetic track brake device 4 are lowered onto the rail by a lifting device, not shown here, until the pole shoes 16a, 16b of the magnetic cores 7 of the intermediate links 6 and the end links 14, 15 contact the rail head and the coil windings of the electromagnetic coils 9 are energized, so that the current of the magnetic cores 7 in the intermediate links 6 and the end links 14, 15 generates a magnetic flux which is closed via the rail head. The pole shoes 16a, 16b are therefore pulled down onto the rail head 18 and pressed onto it with a strength corresponding to the magnetic flux. The movability of the magnetic core 7 in the direction of the longitudinal axis of the solenoid body 8 also allows the magnetic core to lie flat on differently worn rail heads 18 and to generate the desired magnetic flux and then to generate a braking force by frictional engagement between the pole shoes 16a, 16b and the rail heads 18. The separating wall 10 absorbs the braking forces generated by the friction between the magnet core 7 and the rail head 18 and transmits them to the solenoid body 8, from where they are transmitted to the fastening device and the lifting device and from there to the bogie.

List of reference numerals

2 chain type magnet

4-chain type magnetic track brake device

6 middle chain link

7 magnetic core

8 electromagnetic coil body

9 electromagnetic coil

10 partition wall

11 chamber

12 screw connection

13 through hole

14 end link

15 end link

16a/b pole shoe

17 web

19a, b legs

20 end link core upper part

21a/21b upper first part

22 electrical connection part

23a/23b lower second part

26 connecting device

28 baffle

30 upper bracket

32 lower bracket

34 gap

36 upper notch

38 lower notch

40 surface

42 stepped first separating surface

44 stepped second partition surface

46 thread part

48 screw with cap

50 recess

Side 54

56 holes