DE102006004891A1 - Linear levitation system for adjustably mounting load on fixed slide rail, has two permanent magnets, where magnetic attraction takes place between magnets and slide rail such that small air gap is present between mounting rail and magnets - Google Patents

Abstract

The system has two permanent magnets (C) fixed in a driving direction, and are bonded together with reverse and perpendicular polarity to a slide rail (A). Magnetic attraction takes place between the permanent magnets and the slide rail, such that a small air gap is present between a mounting rail and the permanent magnets. A magnetically conductive control unit (D) that controls the magnetic attraction between the permanent magnets and the slide rail up to total neutralization of a weight. An independent claim is also included for a magnetically conductive control unit having a function of magnetic field.

Description

State of technology

The Displacement of a load along a carrier rail is done by means of Rollers, which are mounted above the load and on one support rail roll along.

Of the The disadvantage here is that such hangers are not always with the desired Move lightness and smoothness, especially then whom sticking dirt on the track and the rollers and the Run roller bearings dry. Furthermore, it comes in such systems in Over time often jerky movements and noise.

On Reason the point or linear contact surface of the Rollers with the suspension rail the material stress is correspondingly large so the unwanted Wear and tear Noise appearance.

Of the The invention is therefore based on the object of a load of the input called type to create an improved lightness smooth running uniformity the movement as well as low wear having

These The object is achieved by the Characteristics of claim 1 solved.

advantageous embodiments The invention are clearly described in the further claims

at the system according to the invention you know that suspension at least one attached to the load (J) and below the magnetic conductor Running rail (A) arranged permanent magnet (C) which on the running rail (A) the magnetic force exerts.

The Weight of the load (J) is thus completely according to the invention of the permanent magnet Attraction carried between the permanent magnets (C) And running rail (A) works. Here is a small air gap (L) between mounting rail and permanent magnet available.

The Last load This way, with minimal friction and almost noiseless move. Continue to load to realize a very smooth smooth running. From further Advantage is the suspension practically wear-free is working.

According to one advantageous embodiment two permanent magnets (C) are glued next to each other on pole plate (B). Due to the different polarity of the magnets, the force is increased.

Between the magnet is a gap provided in this column comes Actuator (D) of magnetically conductive material into it and which one with the help of a set screw (F) can move in the longitudinal direction and thus releases more or less magnetic field until the levitation is reached, so until the magnetic attraction and gravity equal are big.

advantageously, the spacer device comprises guide rollers (H) which in the U profile (A) protrude laterally, and so the possible deviation Secure up and down. The guide rollers carry no load and are fixed to the magnetic head by a plate (G) and these in turn screwed on the load

The Invention will be explained in more detail by way of example with reference to the drawings.

The drawing (F1) is a cross-section of a permanent magnetic head which consists of the following parts:
The fixed support rail (A) is made of a magnetically good conductive material in U-shape, and must be on the side so that the guide rollers (H) can be inserted laterally. The length of the carrier rail (A) determines the track.

The guide rollers (H) are laterally mounted on a plate (G) which is the link represents between mounting rail and magnetic head. The leadership roles (H) are mounted a little offset on the plate (G), so that one roll the upper part and one the lower part of the running rail touched very lightly. On In the drawing (F2) you can see the roles offset better. (F2) shows a longitudinal section of the Carrying head.

Under the running rail (A) is a free space (air gap), then comes the actuator (D) which consists of a magnetically conductive Material is made.

On drawing (A) you can see the T. format of the actuator (D) which has a hole for the set screw (E). The actuator (D) is much shorter than the permanent magnets (C) and shields only a part of the magnets, as can be seen on the drawing (F2). By means of the set screw (E) and the fixed nut (F) you can move the shield along the magnets, so that you can change the magnetic field as needed. The more magnetic surface is shielded by the actuator the weaker is the attraction, because a part of the magnetic field is shorted. As a result, not so much magnetic force can flow upwards into the mounting rail (A). To the left and right of the actuator (D) are the load-bearing permanent magnets (C) on a magnet-conducting pole plate (B) draufge sticks. Drawing (F3).

Magnetic flux with actuator:

left Magnetic flux into the actuator, then flows to the other side, through the upper part of the actuator into the magnet, then down into the pole plate (B) into, and through this again in the left magnet. Thus, the magnetic flux is closed.

Magnetic flux without actuator:

left Magnet over the air gap (L) in the lower U-legs of the U-profile passes through it and flows then over the air gap (L) in the right magnet then therethrough into the pole plate (B) So then the magnetic field is closed. But Since the magnet has exerted its force on the U rail (A).

The Pole plate (B) is on the load (J) (here a wooden door leaf) attached. The permanent magnets are always with a pole on the pole plate (B) fixed. To carry a load you need at least one Carrying head best at each load end one.

In Drawing (F5) are thin Pole plates (K) glued to each magnet which the collected Dispense magnetic field into the actuator (D) and then through this in the lower pole plate (B). Since only the actuator (D) in the Center moved to the magnetic shield.

A other variant is the drawing (F4) There is only one longer magnet over which An actuator (D) slipped is. There is only the upper part (U shape) for magnetic shielding or control of the magnetic field shifted.

at the drawing (F6) flows the magnetic field from the inside surface of the carrier rail (A) in the pole plate (B) into it.

Simbol meaning

• A

  = U profile made of magnet conductive material

  B

  = magnetic conducting pole plate

  C

  = Permanent magnets

  D

  = Magnetic conductive actuator

  e

  = Adjusting screw

  F

  = Threaded nut

  G

  = Link

  H

  = Guide rollers

  I

  = Sideplay limit

  J

  = Load (wooden door leaf)

  K

  = thin pole plates

  L

  = Air gap

  F1

  = Cross section of a permanent magnet carrying head

  F2

  = Partial side view from the carrying system

Claims (8)

Linear levitation system for sliding support a load by means of permanent magnets (C) on a fixed and on the side lying running rail (A) in U format along which is made of a magnetically conductive alloy where the Regulation of the magnetic attraction between the permanent magnet surface and of the lower U thigh (A) until the total lifting of the weight (Levitation) by means of an actuator (D) is made. The adjustment takes place by weakening the permanent magnetic field instead of. Linear levitation system according to claim 1 characterized characterized in that two fixed in the direction of permanent magnets (C) with opposite and vertical polarity to the track (A) with an oblong Format and with a space in between on a magnetically good conductive pole plate (B) are glued on it. Linear levitation system according to additional claim to 1 and 2 characterized in that all on the pole plate (D) fixed permanent magnets (C) have the same magnetization direction. Linear levitation system according to claims 1 to 3 characterized in that a single long permanent magnet (C) in Running direction to the carrier profile (A) on a slightly wider pole plate (B) is glued on it, so that the side legs of the U actuator (D) (F4) (F6) except for the pole plate (B) reach without the surface of the permanent magnet (C). Linear levitation system according to claims 1 to 4 characterized in that a single permanent magnet (C) in the longitudinal direction to the running rail (A) on an exactly as wide pole plate (K) to the lower surface the pole plate (B) range. Linear levitation system according to claims 1 to 5, characterized in that two permanent magnets (C) are mounted on a pole plate (B) - (F5) and (F6), the magnetic polarity is perpendicular and can be opposite or the same direction as each magnet has its own Force field closes on each magnet is a dune and just as wide pole plate glued on it. Between the dhows (C) there is a clearance for the actuator (D). Levitation system according to claim 1 to 6 characterized that the regulation of magnetic attraction by means of a magnetic part can guarantee in different types, condition you change the attraction of the permanent magnets between the U profile (A) this in which one uses the adjusting screw (F), the magnetic field shield (D) over or between the magnets pushes for more or less magnetic force to get. The actuator (D) has the function of the magnetic field to weaken as needed or to strengthen.