DE102009009075A1 - Drive system for rail vehicle, has heavy part comprising pole structure provided along movable direction such that propelling force is produced at pole structure, during rotation of permanent magnets, according to reluctance motor principle - Google Patents

Abstract

The system has a heavy part (2) i.e. rail part, extending in a movable direction. Ferromagnetic supporting disks (1) of a vehicle have permanent magnets (20, 21), whose magnetization direction exhibits axial direction that is opposite to magnets that are adjacent in a circumferential direction. The heavy part has a pole structure provided along the movable direction such that the propelling force is produced at the pole structure, during rotation of the magnets, according to reluctance motor principle. The heavy part is made of steel sheet. The disks are driven by synchronous motor.

Description

The Invention relates to a system.

It is known, rotors of synchronous motors at its periphery with permanent magnets to equip.

Of the Invention is therefore the object of a system with at least a drive system to further improve, with losses small to be kept.

According to the invention Task in the system according to the features specified in claim 1 solved.

Important features of the invention in the system in that it comprises a first and a first relatively movably arranged second part, comprising a first and a first relatively movably arranged second part,
wherein the first part has a sword part extending in the direction of movement, in particular elongated,
wherein the second part comprises at least one rotatably mounted, drivable disc,
wherein the axis of rotation is oriented perpendicular to the direction of movement,
wherein the disk has permanent magnets at its circumference, the magnetization direction of which in each case has the opposite axial direction to the permanent magnet which is adjacent in the circumferential direction,
wherein the sword part along the direction of movement has such a pole structure, that when driving past the permanent magnets on the pole structure, the driving force is generated, in particular generated, according to the reluctance motor principle.

From The advantage here is that the propulsive force according to the reluctance principle is generated, wherein poles of the pole structure of the next adjacent permanent magnet be attracted when passing the permanent magnets on the pole structure of the sword part. Thus, the disc is in a simple way with a Electric motor drivable and the drive system has a slip-free Operating mode. This is in contrast to rolling a drive wheel a non-contact Driving executable. Thus, a softer drive is feasible compared to a rolling rubber wheel or the like. An icing of the rail or otherwise change the coefficient of friction of the surface of the rail part leads not to an altered one Movement, as the driving force is generated by means of magnetic fields. As long as no overload the drive system occurs is the occurrence of significant slippage prevents substantial slippage then exists when the slip value of the disc is greater than half the angular distance between nearest adjacent permanent magnets the discs is.

Even if a case of overload occurred at short notice The disc will get an angular offset, but only by one or more distances between the permanent magnets, so after completion of the overload Again, each permanent magnet respective poles of the pole structure one-to-one is associated with the movement along the pole structure.

at an advantageous embodiment, the sword part between the Discs arranged. The advantage here is that two discs can be used us thus a greater propulsive power can be generated.

at an advantageous embodiment, the pole structure in the direction of movement evenly spaced spaced teeth on. The advantage here is that a simple production and a uniform driving force while the movement is generated.

at an advantageous embodiment, the sword part comprises a stamped part, in particular made of sheet steel. The advantage here is that the production is very easy and inexpensive is.

at According to an advantageous embodiment, the teeth have a widened tooth head on. The advantage here is that the field management is improved.

at According to an advantageous embodiment, the permanent magnets in the circumferential direction a distance to their nearest neighbor Permanent magnet, which is the distance of poles of the pole structure substantially resembles, in particular exactly equals. The advantage here is that allows driving without slippage is.

at According to an advantageous embodiment, the sword part is subarea a rail system or a rail, wherein the rail system or the rail also management areas for roles of the formed as a vehicle second part, in particular wherein the rail system or the rail is integrally formed. Advantageous is there on the rail system on the one hand, the supports and To lead of the vehicle executable is and on the other hand driving by the sword part as Reactive part is provided on the rail system.

In an advantageous embodiment, each permanent magnet is made of two or more individual permanent magnets, which are arranged one above the other perpendicular to the surface of the respective cone-shaped portion. It is advantageous that a cost-effective and less expensive amplification of the magnetic field can be achieved. In an advantageous embodiment, each permanent magnet is made of two or more individual permanent magnets, which are arranged side by side in the circumferential direction. The advantage here is that also a cost-effective and less expensive amplification of the magnetic field can be achieved.

at an advantageous embodiment, the sword part is as a punched Made of sheet steel. The advantage here is that a cost-effective production executable is.

at an advantageous embodiment, the disc of an electric motor, in particular synchronous motor, driven. It is advantageous that an easy to regulate drive can be used.

at an advantageous embodiment, the driving force by means Reluctance force generated, especially when passing through the discs along the sword part, especially the discs with their permanent magnets, wherein a respective permanent magnet to the next adjacent pole or tooth the pole structure most attracts. The advantage here is that the propulsive force can be generated in a very cost-effective manner.

at an advantageous embodiment is in each case on a with the respective disk rotatably connected part of a support roller provided stored, in particular mounted by means of ball bearings, wherein the supporting role unrolled on the rail system or on the rail and / or can be guided. The advantage here is that a support on the rail system is executable and the support roller can be stored on the axis of rotation of the disc, thus the bearing a smaller difference in the rotational speeds on the inner ring and outer ring of the warehouse is suspended.

at an advantageous embodiment is on the rail system or on the rail of the rolling area or guide area for the support roller and / or on the support roller the outer surface is so concave, in particular on both sides facing the respective disks of the rail system that when deflecting the vehicle from his Target orientation restoring forces to Stabilization of the target orientation are effective. Is an advantage thereby, that a self-centering is made possible in a simple manner.

at an advantageous embodiment are means for detecting the Motor current of the electric motor with such control electronics connected that a value for Driving force from the detected current values can be determined. From The advantage here is that the propulsive force is similar to the torque of the engine is detectable, so with a simple structure in simple Wise.

at an advantageous embodiment act means for detecting the Position in the direction of movement together with the pole structure, in particular where a cooperating with the pole structure photoelectric barrier provided is to capture the position. The advantage here is that the Polstruktur not only for the generation of propulsive force but also for position determination is usable.

Further Advantages emerge from the subclaims.

1

ferromagnetic carrier disc

2

Sword part, especially rail part, with teeth

20

Permanent magnets, outward directed north poles

21

Permanent magnets, outward directed south poles

The invention will now be explained in more detail with reference to figures:
In the 1 is a drive system of a device according to the invention schematically sketched in side view, wherein a vehicle is a rotatably mounted disc 1 includes and along a sword part 2 a rail is movable, which also has not shown rail parts for guiding support rollers, with which the vehicle is movable along the rail.

In 2 an associated oblique view is shown.

In 3 a further embodiment is shown, which comprises a further disc, which is arranged parallel to the first disc, wherein the heavy part 2 is provided between the discs.

According to the embodiment of the invention 1 and 2 is the disc 1 of a not shown electric motor displaceable in rotational movement. The disc consists of ferromagnetic carrier material to which permanent magnets are connected. The axis of rotation is oriented perpendicular to the direction of movement of the vehicle, so that along the circumference of the disc arranged permanent magnets on the sword part are vorbedrehbar.

On the outer periphery of the discs are permanent magnets 20 with outward north pole or permanent magnets 21 provided with outward south pole.

The magnetization direction in the circumference Direction of directly adjacent permanent magnets is oriented opposite. An outward south pole is followed in the circumferential direction by an outward north pole.

The sword part 2 has a comb-like structure composed of individual teeth. Each tooth has a widened tooth head on its end region directed toward the vehicle.

The distance between the individual teeth of the comb-like structure of the sword part 2 in the direction of movement substantially corresponds to the distance between the permanent magnets in the circumferential direction.

If the speed of the disc is essentially the speed of an imaginary, same size, am Sword part without slip rolling wheel equals is a generation propulsive force in the direction of movement due to the reluctance principle allows because between the tooth head and permanent magnet causes an attractive effect becomes. In this way the vehicle synchronizes itself to the sequence the teeth provided along the direction of movement. So it's essentially one Slip-free movement of the disc allows without touching Unroll on the rail.

The Drive system is for a rail vehicle having a vehicle linkage, the by means of rollers, in particular supporting rollers, on the rail, comprising sword part and others not shown Rail parts, positionable and movable along this rail is arranged. On the rail vehicle even two drive systems, namely a front and back, attachable.

The Storage of the disc, especially as a ball bearing, is also on the provided in the figure, not shown vehicle linkage.

By means of the other rollers mounted on the vehicle frame, such as support rollers and / or guide wheels, the vehicle on the other rail parts is then relatively movable in the direction of movement, ie along the sword part 2 ,

The axis of rotation of the disc 2 is oriented perpendicular to the direction of movement. The sword part is made elongated along the direction of movement and is preferably manufactured as a continuous casting. At the sword part 2 are also the other rail parts made in one piece or multi-piece design, which serve to guide the rollers and together with the sword part form the rail or the rail system. Preferably, the sword part 2 Made of ferromagnetic material, such as steel or sheet steel.

The Rail also includes management areas for roles and the rail parts to guide the Supporting roles. There is every supporting role provided on the disc driving the rotor shaft stored.

In the figures are the permanent magnets 20 with the northern part directed towards the heavy part and the permanent magnets 21 shown with the southern part directed towards the heavy part.

Preferably, the vehicle has a control unit which controls the engine of a front and an analogously designed rear drive system, wherein the drive system in each case the in 1 illustrated embodiment corresponds.

The Sword part is in a further embodiment of the invention as a sheet steel package executed taking the teeth each punched out. The teeth are thus arranged in a plane whose normal direction is parallel is arranged to the axis of rotation.

According to the embodiment 3 are two slices 1 provided on the rotation axis and are driven by the motor. On both discs are again permanent magnets 20 and 21 provided, which are spaced apart by means of the comb-shaped structure of the sword part, ie by means of teeth. There is every permanent magnet 20 the first disc 1 a permanent magnet 21 the second disc 1 directly opposite and each permanent magnet 21 the first disc 1 a permanent magnet 20 the second disc 1 ,

In an alternative embodiment of the invention, the engine and the disc are 1 arranged stationary and the movable plant part then includes the sword part 2 including rail parts.

Claims (15)

Installation, comprising a first and a first relatively movable arranged, the second part, wherein the first part in the direction of movement extending, in particular elongated executed sword part, characterized in that the second part comprises at least one rotatably mounted, drivable disc, wherein the The axis of rotation is aligned perpendicular to the direction of movement, wherein the disk has permanent magnets on its circumference, the magnetization direction of which in each case has opposite axial direction to the permanent magnet which is adjacent in the circumferential direction, wherein the sword part along the direction of movement has such a pole structure, that when driving past the permanent magnets on the pole structure, the driving force is generated, in particular generated, according to the reluctance motor principle. Plant according to at least one of the preceding Claims, characterized in that the sword part between the discs is arranged. Plant according to at least one of the preceding Claims, characterized in that the pole structure in the direction of movement evenly spaced spaced teeth having. Plant according to at least one of the preceding Claims, characterized in that the sword part is a stamped part, in particular made of sheet steel, includes. Plant according to at least one of the preceding Claims, characterized in that the teeth have a widened tooth head exhibit. Plant according to at least one of the preceding Claims, characterized in that the permanent magnets in the circumferential direction a distance to their nearest neighbor Permanent magnet, the distance of poles of the pole structure essentially resembles, in particular exactly equals. Plant according to at least one of the preceding Claims, characterized in that the sword part portion of a rail system or a rail, the rail system or the rail also management areas for roles of the formed as a vehicle second part, in particular wherein the rail system or the rail is integrally formed. Plant according to at least one of the preceding Claims, thereby marked that Each permanent magnet consists of two or more individual permanent magnets accomplished is perpendicular to the surface of the respective cone-shaped Section one above the other are arranged and / or that each permanent magnet of two or more individual permanent magnets is executed in the cone-shaped section are arranged side by side in the circumferential direction. Plant according to at least one of the preceding Claims, characterized in that the sword part as a stamped steel sheet is made. Plant according to at least one of the preceding Claims, characterized in that the disc is driven by an electric motor, in particular synchronous motor is driven. Plant according to at least one of the preceding Claims, characterized in that the driving force by means of reluctance force can be generated, in particular by turning past the discs along the sword part, especially the discs with their permanent magnets, wherein a respective permanent magnet to the next adjacent pole or tooth the pole structure most attracts. Plant according to at least one of the preceding Claims, characterized in that in each case on one with the respective Disc rotatably connected part provided a support roller stored is stored, in particular by means of ball bearings, wherein the support roller unrolled on the rail system or on the rail and / or can be guided. Plant according to at least one of the preceding Claims, characterized in that on the rail system or on the rail the rolling area or guiding area for the Support roller and / or on the support roller the outer surface is so concave is, in particular on both facing the respective discs Side of the rail system that when deflecting the vehicle from his Target orientation restoring forces to Stabilization of the target orientation are effective. Plant according to at least one of the preceding Claims, characterized in that means for detecting the motor current the electric motor connected to such control electronics are that a value for Driving force from the detected current values, in particular from the From this specific active current, can be determined. Plant according to at least one of the preceding Claims, characterized in that means for detecting the position in Direction of movement cooperate with the pole structure, in particular wherein a photocell cooperating with the pole structure is provided is to capture the position.