AT74775B - Safety device for monitoring motors whose speed is changed by regulating their field. - Google Patents
Safety device for monitoring motors whose speed is changed by regulating their field.Info
- Publication number
- AT74775B AT74775B AT74775DA AT74775B AT 74775 B AT74775 B AT 74775B AT 74775D A AT74775D A AT 74775DA AT 74775 B AT74775 B AT 74775B
- Authority
- AT
- Austria
- Prior art keywords
- field
- regulating
- changed
- safety device
- whose speed
- Prior art date
Links
- 238000012544 monitoring process Methods 0.000 title 1
- 230000001105 regulatory effect Effects 0.000 title 1
- 230000001133 acceleration Effects 0.000 description 3
Landscapes
- Control Of Conveyors (AREA)
Description
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Feld geschwächt wird ; dass aber zweitens die zugelassenen Beschleunigungen auch von der Maschinenlast abhängen.
In der Fig. 3 ist das Stück b des Anlaufkurvenschubes j ! nicht fest, wie in Fig. 2, sondern um den Punkt 2 schwingbar angeordnet. Den Kurvenschub b zieht eine Feder 3 beständig nach dem Mittelpunkte der Steuerscheibe und damit gegen einen um diese Mitte drehbaren Nocken J.
Dieser ist durch das Gegengewicht 6 ausgewuchtet und daher stets im Gleichgewicht, auch Wenn er sich um die Scheibenmitte 4 dreht. Der Steuernocken 5 steht unter der Herrschaft der Feder 7 und des polarisierten Elektromagneten 8, die gewöhnlich, wenn der Kurvenschub b steuert, einander entgegenwirken. Sowohl Feder 7 wie Elektromagnet 8 sind an der Steuerscheibe fest und drehen sich mit ihr. Den Magnet 8 durchfliesst der Strom des Fördermotors, der in Fig. 2 mit j ! bezeichnet ist.
Je stärker der Fördermotor belastet ist, desto weiter zieht der Magnet S den
Steuernocken 5 abwärts und desto weiter schiebt er dadurch den Kurvenschub b nach dem Umfange der Steuerscheibe, desto geringer wird also die Beschleunigung, die der Kurvenschub b zulässt,
Statt durch den Steuernocken 5 kann der Kurvenschnb b durch ein beliebiges anderes Getriebe bewegt werden.
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Maschinenführer anzeigt, ob und wie er den Steuerhebel bewegen darf.
PATENT-ANSPRÜCHE :
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änderung de ;- ! zu steuernden Motors beeinflusste Vorrichtung (Fig. 1) desto kleinere Beschleungigungen zulässt, je mehr das Feld geschwächt wird.
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Field is weakened; Secondly, the permitted accelerations also depend on the machine load.
In Fig. 3, the piece b of the starting curve thrust j! not fixed, as in FIG. 2, but arranged to oscillate about point 2. A spring 3 constantly pulls the cam thrust b towards the center point of the control disk and thus against a cam J.
This is balanced by the counterweight 6 and therefore always in equilibrium, even when it rotates around the disc center 4. The control cam 5 is under the control of the spring 7 and the polarized electromagnet 8, which usually oppose each other when the cam thrust b controls. Both the spring 7 and the electromagnet 8 are fixed to the control disk and rotate with it. The magnet 8 flows through the current of the conveyor motor, which in Fig. 2 with j! is designated.
The more the conveyor motor is loaded, the further the magnet S pulls the
Control cam 5 downwards and the further it pushes the cam thrust b to the circumference of the control disc, the lower the acceleration that the cam thrust b allows,
Instead of the control cam 5, the cam b can be moved by any other gear.
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Machine operator shows whether and how he can move the control lever.
PATENT CLAIMS:
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change de; -! To be controlled motor influenced device (Fig. 1) allows the smaller accelerations, the more the field is weakened.
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Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE74775X | 1913-12-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT74775B true AT74775B (en) | 1918-10-10 |
Family
ID=5636886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT74775D AT74775B (en) | 1913-12-16 | 1914-12-14 | Safety device for monitoring motors whose speed is changed by regulating their field. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT74775B (en) |
-
1914
- 1914-12-14 AT AT74775D patent/AT74775B/en active
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