DE7040638U - SHORT-CIRCUIT RUNNING MOTOR - Google Patents

Description

D R. -JN G. DIPL-ING. G. RIEBLING PATENT ADVOCATE My sign

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I repeat the answer Your sign

Batraff:

Your message from Meina Naohricht from

899 Lindau (Lake Constance)

Renneria 10 P.O. Box 365

3.11.197ο

Herbert Morris Limited, Empress Works, Loughborough, County of Leicester / ENGLAND

Squirrel cage motor

This innovation relates to a linear or squirrel cage motor drive for rotating an output shaft.

The task of the innovation is to obtain a direct rotary drive that has a wide,

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show easily controlled speed change.

According to the innovation, a linear or squirrel-cage motor drive includes a housing which has a pair of stationary electrical coils and a drive shaft which is fixed in the housing / a disc mounted on the drive shaft with an air gap between the disc and the coils, a link of one the housing mounted magnetic brake to surround the shaft , and a second member of the brake mounted near the disc, with a spring holding the second member of the brake in contact with the disc and an electromagnetic arrangement releases the second member to the Allow rotation of the disc when the coils are energized.

The innovation is described with reference to the accompanying drawings.

It shows:

Figure 1 is a front view of a linear motor drive;

Figure 2 is a sectional view taken along line 2-2 of Figure 1;

Figure 3 is a sectional view taken along line 3-3 of Figure 1;

FIG. 4 is a sectional view of a modified / n-drive;

FIG. 5 shows a sectional view of a further embodiment;

FIG. 6 shows a sectional view of yet another embodiment.

The coils 1 of a linear motor are mounted on angle members 2 which are fastened to a housing 3 which also receives bearings 4 for a drive shaft 5 in order to transmit a drive directly or via a pulley or a pinion.

A disk 6, preferably made of cast iron or steel, optionally with cooling fins 7 on a surface is on the Drive shaft 5 fixed and is on the opposite surface with a ring 8 with a circular transverse

cut from a low resistance metal such as aluminum, copper and like that.

The ring 8 is flat or flanged and is attached by screws, rivets or glue attached to the disc 6 and is separated from the coils 1 by an air gap 9.

Electric current supplied to the coils i induces a field which causes the disk 6 to rotate and thus drive the shaft 5. Precautions are taken to reduce the width of the air gap **** 9 to be able to change, and the coils 1 are connected to a heat sink in order for a certain Engine size to allow greater thrust capacity.

An electromagnetic brake is attached to surround shaft 5 and contains one or two (or a plurality of them) magnetic components mounted on a plate 11 fixed to the housing 3 are. A movable member 12 of the brake is fixed in a plane parallel to the disc 6,

the brake being pressed by springs 13 with a lining 14 on the plate 12, the disc 6 being pressed.

If the magnetic braking system Strr = ??. is fed, the two plates 11, 12 of the magnetic circuit pull one another _f press the springs 13 together to close the air gap 9 and relieve the pressure of the lining 14 against the disk 6. The pressure of the springs 13 is adjusted by nuts Io. The brake cannot secure if the electromagnetic circuit is interrupted.

In a further embodiment of the innovation shown in FIG. 4, the power of the drive is increased increase, a second disk 61 is provided on the output shaft, which is supported by additional stationary coils C, is operated as described above.

In the embodiment shown in Figure 5 is a hollow drum 15 attached to the disc 6, or the disc 6 is cast together with this and a Brake lining 16 on a pair of brake shoes 17 engages, as described above, on the drum by means of springs

Il I

on and is released from it when an electromagnet Electricity is supplied to work against the spring pressure.

In the construction shown in Figure 6, the magnetic attraction of the stationary coils 1 of the Motor component used to release the brake. The disc 6 is on the shaft 5 with a slight axial movement relative to the coils c under the action of a spring 19 fixed. The brake pad or the pads 14 on the plate 12 are received on arms 21 on the housing 3 and are through the Spring 19 tightened, the disk 6 in engagement with moves the pads. The excitation of the coils 1 pulls the disc 6 towards the coil 1 and releases the brake and at the same time reduces the air gap 9. The amount of axial movement of the disk 6 is determined by spacers 24 controlled on a socket 22 on the shaft 5. This arrangement is used wherever the standing or the Force of the stationary engine components are such that the axial movement of the disc 6 is given, and that Method of speed control ensures that the stationary reels 1 during normal running

^ are continuously excited.

_.- Various other forms of drive are ώ jlich.

The stationary coils 1 of the motor can between

ΐ slices or on one of the sides of one or

<: - · be attached to several discs and the brake can

\ be a clamp brake or some other type. the

.) Disk 6 can be made of ferrous material, with

I or without a ring, or made of a non-ferrous

? Material such as copper _t and be plated.

j A protective device 23 is to protect against un-

I intentional touch with moved & ώ! 'Rush attached.

I For speed control, the coils 1 of the

i impulses the motor to cause a rotation

[v ■ -% to generate low speeds, the

"'Discs 6 act as a flywheel to compensate for shocks,

or a thyristor control or voltage

change used.

Protection claims

Claims (7)

"Claims for protection 1. linear or short circuit motor drive, characterized by a housing (3) containing a pair of stationary electrical coils (1) and a .in the housing (3) fixed drive shaft (5), a disc (6), which with a Air gap Cd) is fixed between the disc (6) and the coils (1) on the drive shaft C5), a member (11) of a magnetic brake mounted on the housing (3) to the shaft (5) surrounded, and a second member (12) of the brake, which is fixed in the vicinity of the disc (6), one Spring (13) keeps the second link (12) of the brake in contact with the disc (6), and an electromagnetic one Arrangement for releasing the second link (12) to allow rotation of the disc (6) when the Coils (1) are energized. 2. Motor according to claim 1, characterized in that a ring (8) with a circular Cross section on the disc (6) near the coils (1) is attached. 3. Motor according to claim 1 or 2, characterized
characterized in that a brake pad or pads (14) are provided on the brake to engage the disc (6). ti 4. Motor according to claim 1-3, characterized marked that v «th disc (6) is mounted on a bushing on the shaft (5), the disc having limited axial movement ; allowed on the socket under the action of the spring is to apply the brake. 5. Motor according to claim 4, characterized
characterized in that the brake is released by energizing the coils (1) to allow limited axial movement of the disc (6) relative to the shaft (5). «· 4 m - Io - 6. Motor according to claim 1-3, characterized in that the disc (6) is marked «i c h η e t» is cast with a hollow drum (15) which forms the braking surface, whereby the brake is through an electromagnet or electromagnet is released against the action of a spring or springs. 7. Motor according to one of the preceding claims, characterized in that a number of disks (6, 61) are fixed on the shaft (5) and each disk by one or several coils is operated.