Brake magnet of magnetic track brake device of railway vehicle

Abstract

The invention relates to a brake magnet (1) of a magnetic rail brake device of a rail vehicle, comprising: an electromagnetic coil (2) having turns of an electrically conductive winding wire, said turns running around when viewed in the longitudinal direction of the brake magnet (1), such that a through-opening (7) is formed transversely to the longitudinal direction; the invention relates to an electromagnetic coil (2), in particular a magnetic core (2) having a horseshoe-shaped cross-section, comprising a yoke (8), which protrudes through a through-opening (7) of the electromagnetic coil (2) and is wound by the electromagnetic coil (2) by an upper traction device (9) and a lower traction device (10), and two pole shoes (13, 14), which are designed at the end faces for frictional contact with a rail head of a rail. The invention is characterized in that the magnetic core (3) comprises two magnetic core halves (4, 5) which are connected to each other and each have a yoke part (15, 16) of a yoke (8), said yoke parts protruding into the through-opening (7) of the electromagnetic coil (2), and in that the electromagnetic coil (2) is implemented without the electromagnetic coil body and in a dimensionally stable and / or self-supporting manner.

Description

Technical Field

[0001] The present invention relates to a brake magnet for a magnetic track brake device of a rail vehicle according to the preamble of claim 1, a method for manufacturing a brake magnet according to the preamble of claim 9, a magnetic track brake device according to claim 16, and a rail vehicle having such a magnetic track brake device according to claim 18. Background Art

[0002] The main force-generating component of the electric magnetic rail brake is the brake magnet. It is an electromagnet, consisting of an electromagnetic coil extending in the direction of the track, which is carried by the electromagnetic coil body in the prior art, and a horseshoe-shaped magnetic core. The horseshoe-shaped magnetic core forms a pole shoe on the 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 through the rail head once the brake magnet is placed flat on the track with its pole shoe. As a result, a magnetic attraction is generated between the brake magnet and the track. The magnetic rail brake device is pulled along the track by the synchronizer through the kinetic energy of the moving rail vehicle. Here, the braking force is generated by the sliding friction between the brake magnet and the track combined with the magnetic attraction. Due to the frictional contact with the track, friction wear is generated at the pole shoe of the brake magnet, which must not exceed the maximum wear level.

[0003] In principle, two different types of magnetic rail brake devices can be distinguished according to the design structure.

[0004] On the one hand, the magnetic rail brake device can be a rigid magnetic rail brake device relevant here, wherein the brake magnet is a rigid magnet, as according to US2 255 798, and has a box-shaped electromagnetic coil body there, wherein the electromagnetic coil is accommodated. The magnetic core is multi-piece-shaped, and in particular, the pole shoe that is in friction contact with the track is implemented as a separate component. Rigid magnetic rail brake devices are mostly used for short-distance traffic in the case of trams and light rails.

[0005] Furthermore, chain-type magnetic rail brakes, which are not relevant here, are known, which have chain-type magnets as brake magnets, wherein the electromagnetic coil body has partition walls and a chamber arranged between them. The magnetic cores are held in the chambers between the partition walls with limited movement, and these magnetic cores are aligned during the braking process in order to be able to better follow the unevenness at the rail head. In this case, the pole shoes are formed at the end faces of the magnetic cores of the intermediate chain links facing the track. Chain-type magnetic rail brakes are used in a standardized manner in the field of standard gauge railways, but are also used for short-distance traffic in the case of trams and light rails.

[0006] The size of the braking force of the magnetic track brake device depends in particular on the magnetic flux of the magnetic loop, that is to say, also depends on the geometry of the magnetic core, the magnetomotive force and the friction relationship between the brake magnet and the track. Summary of the invention

[0007] The task of the present invention is to provide a brake magnet, in particular a rigid magnet for a magnetic rail brake device (in particular for a rigid magnetic rail brake device) and a method for manufacturing it, which brake magnet can realize simple separation of its components and simple utilization of its components after reaching the service life or wear limit. In addition, a magnetic rail brake device with such a brake magnet and a rail vehicle with such a magnetic rail brake device will be provided.

[0008] This object is achieved by claims 1 , 9 , 16 and 18 .

[0009] Further advantageous embodiments and developments of the invention are disclosed in the dependent claims.

[0010] The present invention recognizes that the majority of magnetic rail brakes consist of steel and metal alloys. These are in turn combined with non-metallic insulating materials. The separation of these materials is economically difficult to achieve.

[0011] In the prior art, such as US2 255 798 mentioned at the beginning, the electromagnetic coil is wound in the electromagnetic coil body, wherein the electromagnetic coil can only be separated from the electromagnetic coil body by cutting at least one component. Therefore, the brake magnet is usually completely removed during maintenance or at the end of its service life, and there is no recycling plan. Since the insulation and packaging of the electromagnetic coil on the electromagnetic coil body are very expensive, it is difficult to realize the automation of the brake magnet production. Last but not least, the side wall arranged in the upper area of ​​the electromagnetic coil body is insignificant for the magnetic field generation and will cause more material consumption and more weight.

[0012] The object of the invention is to be able to separate the components of the brake magnet from each other in a simple manner at the end of the service life of the brake magnet, so that the worn parts can be simply replaced and can be reused by disposal. In addition, the invention also presents advantages in terms of manufacturing technology and increasing magnetic flux.

[0013] In a first aspect, the invention is based on a brake magnet, in particular a rigid brake magnet of a magnetic rail brake device, in particular a rigid magnetic rail brake device of a rail vehicle, having:

[0014] a) an electromagnetic coil having turns of an electrically conductive winding wire which are wound around in the longitudinal direction of the brake magnet, so that a through-opening is formed transversely to the longitudinal direction;

[0015] b) A magnetic core, in particular, of horseshoe-shaped cross-section, comprising a yoke, which projects through the through-opening of the electromagnetic coil and is wound around the electromagnetic coil by upper and lower traction means, and two pole shoes, which are designed and arranged at the end sides for frictional contact with the rail.

[0016] Such electromagnetic coils are generally known and have turns of wire to be arranged around a magnetic core that conducts a magnetic field. The turns of wire are made of an electrically conductive material, in particular a metal, in order to conduct an electric current. The current conducted in the turns of wire leads to the formation of a magnetic field that is closed by the horseshoe-shaped magnetic core and the rail head.

[0017] According to a first aspect, the present invention provides that:

[0018] c) the magnetic core comprises two mutually connected magnetic core halves, each of which has a yoke part which projects into a through-opening of the electromagnetic coil, and

[0019] d) The magnetic coil is designed without a magnetic coil body and is dimensionally stable and / or self-supporting.

[0020] Without a solenoid coil body means that the brake magnet or the solenoid coil is implemented without a solenoid coil body, or in other words, the solenoid coil or the brake magnet is implemented without a solenoid coil body. The dimensionally stable and / or self-supporting solenoid coil itself is dimensionally stable and / or self-supporting and can also maintain its shape without other components. Preferably, the solenoid coil can directly contact the magnetic core without other components being arranged in between.

[0021] This results in the following advantages: Since the magnetic core and the electromagnetic coil are separate and respectively individual components of the brake magnet, it is possible to maintain and handle these components independently. Thus, for example, the magnetic core can be replaced by a repaired magnetic core without having to replace the electromagnetic coil forming its own unit. For the magnetic core, a lower weight can be achieved by the electromagnetic coil being independent of it, while at the same time increasing the magnetic flux density. The geometry of the electromagnetic coil can also be implemented asymmetrically, for example by implementing the upper and lower pulling devices of the electromagnetic coil with different heights or thicknesses respectively, without having to change the shape of the magnetic core. An additional reduction in the structural height can be achieved by the asymmetrical coil geometry. Therefore, the production of an asymmetrical electromagnetic coil is an optional embodiment, thereby obtaining a higher flexibility in terms of geometry. Electrical insulation can also be ensured as well as possible by the independent and shape-stable electromagnetic coil. A material that is favorable to the magnetic flux can be selected for the magnetic core. Last but not least, at the end of the service life, the electromagnetic coil and the magnetic core can be easily separated for recycling.

[0022] The magnetic core comprises two core halves connected to one another, each of which has a yoke component which is embodied in particular integrally or in one piece with the relevant core half. In particular, the magnetic core comprises a first core half with a first yoke component and a first pole shoe and a second core half with a second yoke component and a second pole shoe. The two core halves are embodied in particular symmetrically with respect to a central symmetry plane. Furthermore, the two core halves preferably touch only in this symmetry plane at their yoke components.

[0023] In particular, the core consists only of two mutually connected first and second core halves, with which the first and second yoke parts and the first and second pole shoes are also implemented in one piece. In other words, the first core half with the first yoke part and the first pole shoe is implemented in one piece, and likewise the second core half with the second yoke part and the second pole shoe is implemented in one piece. The core then consists only of two core halves, which are screwed together in particular, and a connecting device that connects them to each other. This construction enables simple assembly and separation of the core halves and the electromagnetic coil, because then for assembly, only the yoke parts of the two core halves have to be inserted into the through-openings of the inherently rigid or shape-rigid electromagnetic coil and connected to each other. If the pole shoes are in particular integral components of the core halves, they do not have to be assembled or disassembled separately. In the case of wear of the pole shoes, these pole shoes can be rebuilt onto the legs of the core halves, for example by welding on new material (for example also a material different from the material of the core halves). This type of embodiment is also feasible when the brake magnet is new.

[0024] In the case of a detent magnet, the design of the magnet coil as a dimensionally stable and / or self-supporting magnet coil without a magnet coil body can be produced at least partially by adhesively connecting the turns of the winding wire to one another by means of a medium. The medium is preferably non-conductive.

[0025] Adhesion is understood here to mean the adhesion due to molecular forces at the contact surface between the medium and the winding wire or between different sections of the winding wire. The medium can be in a solid or liquid state. In the field of adhesives, adhesion refers to the adhesion of the adhesive layer to the surface of the winding wire.

[0026] The medium may include at least one adhesive, by which the turns of the winding wire are bonded to one another, and / or a hardenable material, wherein the turns of the winding wire are embedded or cast into the hardenable material. In particular, the turns of the winding wire may be at least partially cast into a matrix made of resin and / or plastic.

[0027] Additionally or alternatively, the electromagnetic coil can be implemented as a electromagnetic coil body-free, dimensionally stable and / or self-supporting electromagnetic coil at least partially by braiding the turns of the winding wire with one another in a structure, in particular in a braid. The electromagnetic coil is then a braid or a knitting of the turns of the winding wire, wherein the structure of the braid is arbitrary. For example, the braid can include a twisting of the winding wire. The braid or the knitting is then preferably implemented in such a way that the electromagnetic coil formed therefrom is dimensionally stable or inherently rigid or self-supporting.

[0028] Additionally or alternatively, the electromagnetic coil can be implemented as a dimensionally stable and / or self-supporting electromagnetic coil without an electromagnetic coil body at least partially in that at least some of the turns of the electromagnetic coil are turns cast from an electrically conductive coil material and the electromagnetic coil is at least partially manufactured using casting technology.

[0029] As already mentioned above, first of all with regard to the resulting advantages, in the case of a brake magnet, the pole shoes of the core halves can each be designed integrally with the respective core half. The embodiment in which the pole shoes are integral with the core halves leads to reduced magnetic losses due to the absence of a dividing gap between the pole shoes and the core halves, and thus to an increase in the magnetic force pressing the brake magnet against the rail.

[0030] The production and assembly of the brake magnet can be further simplified if the electrical connections of the magnet coil are integrally formed onto the magnet coil, which is dimensionally stable and / or self-supporting and has no magnet coil body. In other words, the electrical connections are already formed onto the magnet coil during its production and then together with the magnet coil form an integral component of the brake magnet. It is then no longer necessary to produce separate connections and connect them to the turns of the winding wire.

[0031] It is also helpful for simple assembly and disassembly if the core halves are connected to one another only by connecting the yoke parts of the core halves to one another, in particular by screwing them together by means of at least one screw. Because, then, in order to assemble or disassemble the two core halves at the solenoid coil, it is sufficient to install or remove the screw connection.

[0032] In a second aspect, the present invention relates to a method for manufacturing a brake magnet for a magnetic rail brake device of a rail vehicle, wherein the brake magnet has at least: an electromagnetic coil having turns of an electrically conductive winding wire which are wound along the longitudinal direction of the brake magnet so as to form a through opening transversely to the longitudinal direction, in particular a magnetic core with a horseshoe-shaped cross-section, the magnetic core having a yoke and two pole shoes, the yoke extending through the through opening of the electromagnetic coil and being wound by an upper pulling device and a lower pulling device of the electromagnetic coil, the pole shoes being arranged at the end side for frictional contact with the rail, wherein the magnetic core comprises two interconnected core halves, each of which has a yoke component which extends into the through opening of the electromagnetic coil and is preferably interconnected there.

[0033] The method is characterized in that it comprises at least the following steps:

[0034] a) producing the solenoid coil as a dimensionally stable and / or self-supporting solenoid coil without a solenoid coil body, and

[0035] b) making two core halves, and

[0036] c) inserting the two yoke parts of the two core halves into the through-openings of the electromagnetic coil, and

[0037] d) Connect the two core halves.

[0038] In the method, producing the solenoid coil as a dimensionally stable and / or self-supporting solenoid coil without a solenoid coil body may include:

[0039] a) winding the turns of the winding wire onto a mold, the outer contour of which corresponds essentially to the inner contour of the through-opening of the electromagnetic coil, and then

[0040] b) providing the turns wound onto the mold with a medium which adhesively connects the turns to one another, and

[0041] c) After the turns have been adhesively connected, the mold of the through-opening of the electromagnetic coil is removed.

[0042] In particular, the turns of winding wire wound onto the mold can be provided with a hardenable material and / or with an adhesive, and after hardening of the adhesive and / or the hardenable material, the mold can be removed from the through-opening of the intrinsically rigid or self-supporting electromagnetic coil.

[0043] In the method, producing the electromagnetic coil as a dimensionally stable and / or self-supporting electromagnetic coil without an electromagnetic coil body may include: casting the turns of the electromagnetic coil from an electrically conductive coil material and producing the electromagnetic coil using a casting technique, wherein the electrically conductive coil material is heated for casting and solidifies into the desired electromagnetic coil shape after casting.

[0044] Alternatively or additionally, in the method, the magnet coil can be embodied as a dimensionally stable and / or self-supporting magnet coil without a magnet coil body at least partially by braiding turns of the winding wire to one another in a structure.

[0045] In the method described, the connection of the two core halves can also be realized solely by connecting the two yoke parts, in particular by installing a screw connection between the two yoke parts.

[0046] As described above, it is also particularly advantageous if in the method the production of the electromagnetic coil body-free and dimensionally stable and / or self-supporting electromagnetic coil comprises integrally forming the electrical connections onto the electromagnetic coil and / or the production of the two core halves comprises integrally producing the two core halves together with the pole shoes.

[0047] In a third aspect, the invention also relates to a magnetic rail brake device for a rail vehicle, in particular the rigid magnetic rail brake device described at the beginning, wherein the brake magnet is implemented as a rigid magnet and the magnetic rail brake device comprises at least one brake magnet described above.

[0048] In the magnetic rail brake device, the brake magnet can be fixed on a lifting device, which is arranged and constructed to vertically adjust the brake magnet so that it is placed in a position that is lowered onto the track from a position lifted from the track.

[0049] In a fourth aspect, the invention also relates to a rail vehicle having a magnetic rail brake device as described herein.

[0050] Within the scope of the present invention, a rail vehicle can mean any combination of one or more carriages and / or traction vehicles with or without their own drive. A rail vehicle can in particular have a motor vehicle. A rail vehicle or a carriage of a rail vehicle can have a bogie, on which the wheel axles of the vehicle are arranged. The bogie can be fixed to the vehicle body. It is then preferred that the magnetic rail brake device described here is suspended on the bogie. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Now, the present invention will be exemplarily described according to preferred embodiments with reference to the accompanying drawings. In the drawings:

[0052] Figure 1 A side view of a rigid brake magnet of a rigid magnetic track brake device in a use position is shown according to a preferred embodiment;

[0053] Figure 2 Shows Figure 1 A perspective view of a rigid brake magnet;

[0054] Figure 3 Shows Figure 1 A front view of the brake magnet in the use position;

[0055] Figure 4 Shown along Figure 1 A sectional view of plane IV-IV;

[0056] Figure 5 Shows Figure 1 A perspective view of an inherently rigid and self-supporting electromagnetic coil of a brake magnet;

[0057] Figure 6 Shown for manufacturing Figure 1 Flow chart of a method of braking a magnet. DETAILED DESCRIPTION

[0058] The accompanying drawings show a preferred embodiment of the rigid magnet 1 of the magnetic track brake device that is constituted as a rigid magnetic track brake device. Rigid magnet 1 means that it does not comprise a movable element like the chain magnet of a chain magnetic track brake device.

[0059] By means of a fixing device (not shown here), the rigid magnet 1 is fixed to a lifting device, which causes a vertical stroke (vertical lifting) of the rigid magnet 1 so that it contacts the rail head of a track (also not shown here). The lifting device is in turn held on the support of the rail vehicle to the bearing or bogie.

[0060] exist Figure 1 In the side view and Figure 2 1 shows a perspective view of a rigid magnet 1. The rigid magnet 1 consists here in particular only of an electromagnetic coil 2, which is self-supporting and / or dimensionally stable and / or inherently rigid, and a magnetic core 3, which has two core halves, namely a first core half 4 and a second core half 5 ( Figure 4 ), and a connecting device 6 which connects the two core halves 4, 5 to each other.

[0061] The electromagnetic coil 2 comprises turns of an electrically conductive winding wire which are wound around in the longitudinal direction of the rigid magnet 1, so that a through opening 7 is formed therein transversely to the longitudinal direction, such as preferably by Figure 4 As learned.

[0062] like Figure 3 and Figure 4 As shown, the magnetic core 3 has a horseshoe-shaped cross section and has a yoke 8, which protrudes through the through opening 7 of the electromagnetic coil 2 and is wound around the electromagnetic coil 2 by means of an upper pulling device 9 and a lower pulling device 10. Figure 3 and Figure 5Also visible are two transition sections 19, by means of which the upper tension device 9 transitions into the lower tension device 10 and vice versa. The upper tension device 9, the lower tension device 10 and the two end-side transition sections 19 together form a ring that is closed in itself and surrounds the yoke 8.

[0063] Furthermore, the magnetic core 3 and here in particular the two magnetic core halves 4, 5 have two legs extending downwardly (i.e. towards the rail head) from the yoke 8 in the use position, namely a first leg 11 and a second leg 12, which are respectively provided with pole shoes at the end sides, namely a first pole shoe 13 and a second pole shoe 14, which are respectively arranged and constructed for frictional contact with the respectively opposite rail head.

[0064] In particular, the core thus comprises a first core half 4 with a first yoke part 15, a first leg 11 and a first pole shoe 13 of the yoke 8, and a second core half 5 with a second yoke part 16, a second leg 12 and a second pole shoe 14 of the yoke 8. On both core halves 4, 5, the first and second pole shoes 13, 14 are then arranged at ends facing away from each other on the first and second legs 11, 12, viewed vertically from the first and second yoke parts 15, 16.

[0065] The two core halves 4, 5 are designed symmetrically in particular with respect to a central symmetry plane 17 of the rigid magnet 1, which extends along the longitudinal extension of the rigid magnet 1 and here also forms the interface between the two yoke parts 15, 16. Furthermore, the two core halves 4, 5 preferably only touch in this symmetry plane or interface 17 at their yoke parts 15, 16. The symmetry plane 17 is also vertical when viewed in the use position of the rigid magnet. Thus, the core here consists, for example, only of the two core halves 4, 5 and the connecting device (screw) 6.

[0066] If it is best to use Figure 4 It can be seen that the first and second yoke parts 15 , 16 of the two core halves 4 , 5 project into the through-opening 7 of the magnetic coil 2 and are connected to one another there via the connecting device 6 , here for example by means of a number of screws.

[0067] The electromagnetic coil 2 is designed without an electromagnetic coil body (ie, without an electromagnetic coil body) and is inherently rigid and / or dimensionally stable and / or self-supporting. Without an electromagnetic coil body means that the rigid magnet 1 or the electromagnetic coil 2 is designed without an electromagnetic coil body on which the electromagnetic coil 2 is wound. Figure 5 As shown, the magnetic coil 2 itself is dimensionally stable or intrinsically rigid and / or self-supporting and can also maintain its shape without further components.

[0068] Since the magnetic core 3 and the electromagnetic coil 2 are separate or individual components of the rigid magnet 1 , independent maintenance and handling of these components is possible.

[0069] In the case of a rigid magnet 1 , the electromagnetic coil 2 can be designed as a dimensionally stable and / or self-supporting electromagnetic coil 2 without an electromagnetic coil body at least partially by adhesively connecting the turns of the winding wire to one another by means of a medium which is preferably non-conductive.

[0070] The medium can include at least one adhesive, by which the turns of the winding wire are bonded to one another, and / or a hardenable material, wherein the turns of the winding wire are embedded or cast into the hardenable material. In particular, the turns of the winding wire can be at least partially cast into a matrix made of resin and / or plastic.

[0071] Additionally or alternatively, the electromagnetic coil 2 can be implemented as a electromagnetic coil body-free, dimensionally stable and / or self-supporting electromagnetic coil 2 at least partially by braiding the turns of the winding wire with one another in a structure, in particular a braid. The electromagnetic coil is then a braid or a knit of the turns of the winding wire, wherein the structure of the braid is arbitrary. For example, the braid can include a twisting of the winding wire. The braid or the knit is then preferably implemented so that the electromagnetic coil 2 formed therefrom is dimensionally stable or inherently rigid or self-supporting.

[0072] Additionally or alternatively, the electromagnetic coil 2 can be implemented as a electromagnetic coil body-free, dimensionally stable and / or self-supporting electromagnetic coil 2 at least partially in that at least some of the turns of the electromagnetic coil are turns cast from an electrically conductive coil material and the electromagnetic coil 2 is at least partially manufactured using casting technology.

[0073] It is clear that the measures described above, which are merely exemplary, for implementing the electromagnetic coil 2 as a dimensionally stable and / or self-supporting electromagnetic coil 2 without an electromagnetic coil body can be combined with one another in any desired manner. For example, the electromagnetic coil 2 can be produced as a dimensionally stable and / or self-supporting electromagnetic coil 2 without a magnetic coil body by combining a braid or knit of the turns of the winding wire with embedding the braid in a matrix made of an adhesively acting medium, in particular embedding the braid in, for example, a curable resin.

[0074] like Figure 5As shown, the electrical connections 18 of the electromagnetic coil 2 can be integrally formed onto the electromagnetic coil body-free and / or dimensionally stable and / or self-supporting electromagnetic coil 2 as part of its production. In other words, the electrical connections 18 are preferably already formed onto the electromagnetic coil during its production and then form an integral component of the brake magnet together with the electromagnetic coil.

[0075] Figure 6 Shown for manufacturing Figures 1 to 5 Flow chart of a preferred embodiment of the method of producing a rigid magnet 1.

[0076] In step 100, the solenoid coil 2 is produced as a solenoid coil body-free, dimensionally stable and / or self-supporting solenoid coil 2 as described above, in particular in the above-described embodiments with integrally formed electrical connections 18 in a single step 100. The result of step 100 is then Figure 5 Shown in.

[0077] In a further step 200 , which can be before or after the production of the self-supporting electromagnetic coil 2 or also simultaneously therewith, the two core halves 4 , 5 are produced, in particular in the embodiment described above, in each case in one piece from the yoke parts 15 , 16 , the legs 11 , 12 and the pole shoes 14 , 15 .

[0078] In step 400 , which follows steps 200 and 300 , the two yoke parts 15 , 16 of the two core halves 4 , 5 are inserted into the through-opening 7 of the magnetic coil 2 and connected to one another by connecting means 6 , here for example by screws.

[0079] To assemble or disassemble the two core halves 4 , 5 and the electromagnetic coil 2 , it is then sufficient to install or release the connecting device 6 .

[0080] In order to perform braking, the two rigid magnets 1 of the rigid magnetic rail brake device are lowered to the rail head of the track by a lifting device not shown here, until the pole shoes 14, 15 of the core halves 4, 5 contact the rail head and energize the coil winding of the electromagnetic coil 2, so that the current in the core 3 generates a magnetic flux, which is closed through the rail head. As a result, the pole shoes 14, 15 are pulled down to the rail head with a strength corresponding to the magnetic flux and are pressed at these rail heads. As a result, a braking force is generated by the frictional locking between the pole shoes 14, 15 and the rail head, which is transmitted to the bogie through the synchronizer.

[0081] Reference numerals list

[0082] 1 Rigid magnet

[0083] 2 Solenoid coil

[0084] 3 core

[0085] 4First core half

[0086] 5 Second core half

[0087] 6Connection device

[0088] 7Through opening

[0089] 8 Yoke

[0090] 9 Upper pulling device

[0091] 10 Lower traction device

[0092] 11 First Leg

[0093] 12 Second Leg

[0094] 13. First Pole Shoe

[0095] 14 Second pole shoe

[0096] 15 First yoke component

[0097] 16 Second yoke component

[0098] 17 Symmetry plane

[0099] 18 Electrical connector

[0100] 19 Transition Section

[0101] 100 Steps

[0102] 200 steps

[0103] 300 steps

[0104] 400 steps

Claims

1. A brake magnet (1) for a magnetic rail brake device of a rail vehicle, the brake magnet comprising: a) a solenoid coil (2) having turns of an electrically conductive winding wire which are wound around in the longitudinal direction of the brake magnet (1) so that the through-opening (7) is formed transversely to the longitudinal direction, b) a magnetic core (2), in particular having a horseshoe-shaped cross section, comprising a yoke (8) and two pole shoes (13, 14), the yoke protruding through a through opening (7) of the electromagnetic coil (2) and being wound around the electromagnetic coil (2) by an upper traction device (9) and a lower traction device (10), the pole shoes being designed at the end side for frictional contact with a rail head of the rail, characterized in that c) the magnetic core (3) comprises two mutually connected magnetic core halves (4, 5), each of which has a yoke part (15, 16) of a yoke (8), said yoke part protruding into a through-opening (7) of the electromagnetic coil (2), and d) The magnetic coil ( 2 ) is designed without a magnetic coil body and is dimensionally stable and / or self-supporting.

2. The brake magnet according to claim 1, characterized in that The solenoid coil (2) is designed as a dimensionally stable and / or self-supporting solenoid coil (2) without a solenoid coil body and is produced at least partially by connecting the turns of a winding wire to one another adhesively by means of a medium.

3. The brake magnet according to claim 2, characterized in that The medium comprises at least: at least one adhesive, by means of which the turns of the winding wire are bonded to one another; and / or a hardenable material, in which the turns of the winding wire are embedded or cast.

4. The brake magnet according to claim 1, characterized in that The solenoid coil (2) is designed as a dimensionally stable and / or self-supporting solenoid coil (2) without a solenoid coil body, at least partially by braiding the turns of the winding wire with one another in a structure.

5. The brake magnet according to claim 1, characterized in that The design of the solenoid coil (2) as a dimensionally stable and / or self-supporting solenoid coil (2) without a solenoid coil body is at least partially due to the fact that at least some of the turns of the solenoid coil are turns made of an electrically conductive coil material.

6. Braking magnet according to one of the preceding claims, characterized in that The pole shoes (13, 14) of the core halves (4, 5) are each implemented integrally with the core halves (4, 5).

7. Braking magnet according to one of the preceding claims, characterized in that The electrical connections (18) of the solenoid coil (2) are integrally formed onto the solenoid coil (2) which is dimensionally stable and / or self-supporting and is free of a solenoid coil body.

8. Braking magnet according to one of the preceding claims, characterized in that The core halves (4, 5) are connected to one another only by connecting the yoke parts (14, 15) of the core halves (4, 5) to one another, in particular in the through-opening (7).

9. A method for manufacturing a brake magnet (1) for a magnetic rail brake device of a rail vehicle, the brake magnet comprising at least: an electromagnetic coil (2), the electromagnetic coil having turns of an electrically conductive winding wire which are wound around in the longitudinal direction of the brake magnet (1), so that a through opening (7) is formed transversely to the longitudinal direction; a magnetic core (3), the magnetic core being in particular horseshoe-shaped in cross section, the magnetic core having a yoke (8) and two pole shoes (14, 15), the yoke protruding through the through opening (7) of the electromagnetic coil (2) and being wound around the electromagnetic coil (2) by an upper pulling device (9) and a lower pulling device (10), the pole shoes being arranged at the end side for frictional contact with the rail head of the rail, wherein: The magnetic core (3) comprises two core halves (4, 5) connected to each other, each of which has a yoke part (15, 16), which protrudes into a through-opening (7) of the electromagnetic coil (2) and is preferably connected to each other there, characterized in that the method comprises at least the following steps: a) producing the solenoid coil (2) as a dimensionally stable and / or self-supporting solenoid coil without a solenoid coil body, and b) manufacturing the two core halves (4, 5), and c) inserting the two yoke parts (15, 16) of the two core halves (4, 5) into the through opening (7) of the electromagnetic coil (2), and d) connecting the two core halves (4, 5), in particular connecting their yoke parts (15, 16).

10. The method according to claim 9, characterized in that Producing the solenoid coil (2) as a dimensionally stable and / or self-supporting solenoid coil without a solenoid coil body comprises: a) winding the turns of the winding wire onto a mold, the outer contour of which substantially corresponds to the inner contour of the through opening (7) of the electromagnetic coil (2), and then b) providing the turns wound onto the mold with a medium which adhesively connects the turns to one another, and c) After the turns have been adhesively connected, the mold is removed from the through-opening ( 7 ) of the electromagnetic coil ( 2 ).

11. The method according to claim 9 or 10, characterized in that: The production of a solenoid coil (2) as a dimensionally stable and / or self-supporting solenoid coil without a solenoid coil body comprises: casting the turns of the solenoid coil from an electrically conductive coil material and producing the solenoid coil (2) using a casting technique, wherein the electrically conductive coil material is heated for casting and solidifies into the desired solenoid coil shape after casting.

12. The method according to any one of claims 9 to 11, characterized in that The solenoid coil (2) is designed as a dimensionally stable and / or self-supporting solenoid coil (2) without a solenoid coil body and is produced at least partially by braiding turns of a winding wire to one another in a structure.

13. The method according to any one of claims 9 to 12, characterized in that The connection of the two core halves (4, 5) is achieved solely by connecting two yoke parts (15, 16).

14. The method according to any one of claims 9 to 13, characterized in that The production of the solenoid coil body-free, dimensionally stable and / or self-supporting solenoid coil (2) comprises integrally molding electrical connections (18) onto the solenoid coil (2).

15. The method according to any one of claims 9 to 14, characterized in that The production of the two core halves (4, 5) comprises the integral production of the two core halves (4, 5) together with pole shoes (13, 14), so that the pole shoes (13, 14) are implemented integrally with the core halves (4, 5).

16. A magnetic rail brake device for a rail vehicle, characterized in that: The magnetic rail brake device comprises at least one brake magnet (1) according to one of claims 1 to 9.

17. The magnetic rail brake device according to claim 16, characterized in that: The brake magnet (1) is fixed on a lifting device, which is arranged and constructed for vertically adjusting the brake magnet (1) and transmitting the braking force and the lateral force from the brake magnet through a synchronizer.

18. A rail vehicle having a magnetic rail braking device according to claim 16 or 17.

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