DE2522883A1 - STAND FOR ELECTROMAGNETIC BRAKING DEVICE - Google Patents

Description

DTPL.-ING. ALEX STENGER

D-4000 DÜSSELDORF 1 DIPL.-ING. WOLFRAM WATZKE

Malkastenstrasse2 DIPL.-ING. HEINZ J. RING

Our _{reference: Ιζ>} ^ 4 Date: ₂ May 2 ! - / Jz-

Jean Victor Hogue Dervin, Arrieta '^ ₃ Pauiplona

Stand for electromagnetic braking device

The invention relates to a stand for electromagnetic braking devices on vehicles or industrial facilities with significant improvements in terms of effectiveness and reduction the manufacturing costs.

The stand, which is attached to the vehicle to be braked by suitable means, consists of a bearing to accommodate the induction elements, Magnetic poles, induction coils, housings for the circuits and cables etc. and also serves as a support for the steering knuckle of the two parts of the braking device which form the rotor.

According to the prior art, the stand consists of two together welded steel plates to which the steel cores forming the poles are also attached by welding.

The induction coils, which are made of enamelled aluminum and coated with a hardenable resin, are attached to these cores Compressed material electrically insulated and from the street Resulting splashes of water, dirt or stones are protected, whereby the induction coils are made by means of hardenable glues polymerizable resins are attached to the cores and are thus secured against both axial and rotational movements.

A mechanized hub made of cast iron is fastened to this welded structure by means of screws, with a Has ball bearing housing through which the rotation of the axis is ensured.

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J) The device according to the invention gives one with respect to the stand another way and replaces the welded bearing, the hub, the ^ use-ulager ^ ehiuse and the adjusting screw for these with a single one Part made of cast steel, with the central part receiving the ball bearings fastened by Circlips after mechanization.

On the other hand, the winding takes place directly on a carrier made of injection-molded plastic with suitable electrical properties and sufficient resistance to heat build-up.

This carrier has fastening means to the aforementioned part made of cast steel, which preferably consist of a partial recess in this part. A cover made demsel- oen plastic material encloses the coil, which is hereby isolated and perfectly fixed.

From this superficial description of the device according to the invention is obtained compared with the prior art, a significant structural simplification, which has a decisive effect on the production costs, both in terms of material costs is also on wage costs, and also a technical ⁵ Progress recorded because the insulation, protection and fastening of the coils are considerably improved by eliminating the use of molding materials and glues made of polymerizable resins and replacing them with a plastic capsule of practically unlimited durability and fastening by mortise, which reduces the risk of the coils disengaging on the pole turns off completely.

For a better understanding, reference is made in the following description to the accompanying drawings, in which

Fig. 1 is a side elevation in section of the cast steel part represents, which forms the hub and the bearing of the pole cores ..

Fig. 2 is an axial view of this part, the pole cores can be seen in a quarter, with the corresponding ' Coils and their plus concentrators while in one

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the outer casing can be seen in the other quarter through whose round window the ventilation blades are visible.

Fig. 5 is a side elevation in. Cut like in Pig. I, however in this case the entire braking device.

Pig · 4.5 and correspond to further views of the wearer from 6 plastic on which the winding is made, the last view being a cross section of the protrusion the bracket shows.

Fig. 8 and ^ two views of the housing which encloses the coil and

Fig. 7 and 10 two sections through the housing.

11 and 12 a profile in section and a plan view of the special washer for fastening the coil at the free end.

As can be seen from the figures, the stand consists of a part made of cast steel (1), which has a disc shape with a greater thickness in the central zone than on the circumference, a number of circular bores (2) corresponding to the number of pole cores (5) being provided and the connection is made by welding (4).

These bores point with the inner edge diverging on both sides trapezoidal recesses (5), which the uniform Take up the projection (6) of the carrier (7) of the bobbins (8).

This part (1) has in the middle a wide cylindrical bore (9) through which the axis (10) of the rotor is guided and received after mechanization, the ball bearings (11) fastened with Circlips.

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The adjustment of the play of these ball bearings (11) takes place by means of " Thickness gauges attached to one side between the outer track of the ball bearing and seiran Circlip.

The pole cores O) _1, which are welded to the part (1) as stated, receive the Spulai (8), which were previously wound on supports (7), which consist of a hollow cylinder (12) with "six elongated elevations (1 ^ ) that are evenly spaced on the inside and come into contact with the surface of the pole and exert pressure on this.

One of the outer edges is bent outwards at right angles and forms a flap (14) in the form of a circular crown, which at one point a "trapezoidal recess (16) grows, which is let into the recess (5) of the same shape, whereby the carrier (7) and thus the coil in relation to the part (1) in the Is set with regard to rotational displacements, the adaptation of this recess (6) opposite side a Forms channel through which the wires of the coil can be fed.

A cover (I5) is placed on this structure of the carrier-coil Plastic like the carrier (7) is applied, which consists of a cylindrical hollow body, with one of the G-round surfaces is missing and the other (l6) has a wide central hole (I7), The edge of the open base extends at right angles in three points with the same distance from one another outwardly directed flaps (18) on which the elastic lugs (I9) of the flap (l4) of the carrier (7) engage, whereby these two Parts connected and so that the coils are covered and protected.

The outer part of the coil at the bore (17) of the cover (15) is made by a special washer (20) in the shape of a / circular Closed crown, which has three punchings (21) at the same distance, which have a rectangular circumference with shortened long sides (22) and have a curved surface in the cylinder section.

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These punchings (21) are with their convex elevation to Flow concentrator (2j5) attached so that when screwed on same in (24) on the pole core the discs press the coils against the part (1), whereby the coils in the axial direction are fixed.

This ensures that the coils are securely fastened to the stator and that they are covered.

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Claims (2)

Claims t ■ (T) Stand for electromagnetic braking devices, characterized in that that the hub and the support frame of the coils consist of a single part made of cast steel, which after mechanization in the central zone accommodates the ball bearings held with Girclips, while the magnetic cores are welded on the circumference be attached to holes provided for this purpose at the same distance, onto which, preferably by means of an injection-molded The induction coils are attached to the existing plastic carrier, which has a protective and insulating cover obtained from the same plastic as the carrier, with between a lateral locking disc is provided for the windings and the plus concentrators. 2. Stand according to claim 1, characterized in that the carriers of the coils are cylindrical and on the inside have elongated elevations for attachment to the core, wherein the edge at the inner end extends outward at right angles is and forms a circular crown which is supported on the frame of the stand and a radial groove-shaped Has recess which engages in a recess of the same shape which is provided on the frame and which double task fulfilled, the coil in the direction of rotation ^ fix and allow the wires of the winding to be guided to the outside. 3 · Stand according to claims 1 and 2, characterized in that that the protective cover of the winding is also cylindrical and the outer base side has a wide hole in the middle, which is opposite the core, which is attached to the support of the coil by means of lateral abutments on the inner edge will which buttocks cooperate with elastic lugs, which are opposite on the outer edge of the circular crown of the support of the coil are provided. - 7 -609826/0619 Stand according to Claim 1, characterized in that the lateral closure disk of the winding consists of one of the winding opposite circular crown is made, which has three crescent-shaped punchings, in the same Distance from each other, on which the plus concentrator screwed to the core is supported, whereby the axial fastening the coil with its carrier and the protective cover on the core is achieved. 609826/0619 Blank page