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DE339677C - Grinding machine with drive of the grinding spindle directly through the shaft of a three-phase or single-phase AC motor - Google Patents

Grinding machine with drive of the grinding spindle directly through the shaft of a three-phase or single-phase AC motor

Info

Publication number
DE339677C
DE339677C DENDAT339677D DE339677DD DE339677C DE 339677 C DE339677 C DE 339677C DE NDAT339677 D DENDAT339677 D DE NDAT339677D DE 339677D D DE339677D D DE 339677DD DE 339677 C DE339677 C DE 339677C
Authority
DE
Germany
Prior art keywords
phase
grinding
motor
shaft
drive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DENDAT339677D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AEG AG
Original Assignee
AEG AG
Publication date
Application granted granted Critical
Publication of DE339677C publication Critical patent/DE339677C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Description

Bei den zur Zeit bekannten elektrisch angetriebenen Schleifmaschinen, z. B. Supportschleifmaschinen, erfordert der verhältnismäßig große Durchmesser des Motors einen großen Schleif-Scheibendurchmesser. Diese großen Schleifscheiben können jedoch infolge des großen Motordurchmessers nur zu einem geringen Teil abgenutzt werden.
Um nun den Motordurchmesser zu verringern,In the currently known electrically powered grinding machines such. B. support grinding machines, the relatively large diameter of the motor requires a large grinding wheel diameter. However, due to the large motor diameter, these large grinding wheels can only be worn to a small extent.
In order to reduce the motor diameter,

ίο hat man bei Gleichstrommaschinen die Benutzung eines Folgepoles und die Anordnung der gesamten Erregerwicklung auf einen Pol vorgesehen.
Gemäß der Erfindung soll eine Verringerung der Ausladung bei Drehstrom- und Einphasen-Wechselstrom dadurch erreicht werden, daß die Achse des als primärer Teil der Maschine ausgebildeten Rotors nach der Abnutzungsseite der Schleifmaschine zu in dem mit einer Käfigwicklung versehenen Stator exzentrisch gelagert ist. Der Stator bildet den sekundären Teil der Maschine. Durch diese Ausbildung des Stators als mit Käfigwicklung versehener Sekundärteil wird der erforderliche Wickelraum auf ein Mindestmaß verringert. Die Grenze der exzentrischen Lagerung wird durch die höchstzulässige mittlere Rückeninduktion in dem die Käfigwicklung tragenden Statorblechpaket bestimmt.ίο one has provided the use of a following pole and the arrangement of the entire field winding on one pole with direct current machines.
According to the invention, a reduction in the overhang in three-phase and single-phase alternating current is to be achieved in that the axis of the rotor, which is designed as the primary part of the machine, is eccentrically mounted on the wear side of the grinding machine in the stator provided with a cage winding. The stator forms the secondary part of the machine. As a result of this design of the stator as a secondary part provided with a cage winding, the required winding space is reduced to a minimum. The limit of the eccentric mounting is determined by the maximum permissible average back induction in the stator core that supports the cage winding.

Dadurch, daß die Rückenhöhe an der entgegengesetzten Seite erheblich größer ist, bleibt die magnetische Sättigung im Durchschnitt die gleiche wie bei der üblichen Bauart.Because the back height is considerably greater on the opposite side, it remains the magnetic saturation on average is the same as that of the usual type.

Die exzentrische Lagerung von Ständer und Läufer ist an sich bekannt. Bei der bekannten Anordnung sind aber die Rückenquerschnitte sowohl im Ständer wie im Läufer über den ganzen Umfang unverändert..The eccentric mounting of the stator and rotor is known per se. With the well-known However, the arrangement is the back cross-sections both in the stand and in the runner over the whole Scope unchanged ..

Die Figuren zeigen ein Ausführungsbeispiel. Fig. ι zeigt den mit einer Käfigwicklung versehenen, feststehenden sekundären Teil a des Motors; Fig. 2 zeigt einen Schnitt durch den Motor. Der sekundäre Teil der Maschine ist hier mit a, und der primäre Teil, der in den Rotor verlegt und so weit als möglich gegen den Stator exzentrisch gelagert ist, mit δ bezeichnet.The figures show an exemplary embodiment. Fig. Ι shows the stationary secondary part a of the motor provided with a cage winding; Fig. 2 shows a section through the engine. The secondary part of the machine is denoted here with a, and the primary part, which is laid in the rotor and is mounted eccentrically against the stator as far as possible, with δ.

Claims (1)

Patent-Anspruch:Patent claim: Schleifmaschine mit Antrieb der Schleifspindel unmittelbar durch die Welle eines Drehstrom- oder Einphasen-Wechselstrommotors, dadurch gekennzeichnet, daß die Achse des als primärer Teil der Maschine ausgebildeten Rotors nach der Abnutzungsseite der Schleifscheibe zu in dem mit einer Käfigwicklung versehenen, den sekundären Teil bildenden Stator exzentrisch gelagert ist.Grinding machine with drive of the grinding spindle directly through the shaft of a Three-phase or single-phase AC motor, characterized in that the axis of the designed as the primary part of the machine Rotor to the wear side of the grinding wheel in the one with a cage winding provided, the secondary part forming stator is mounted eccentrically. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT339677D Grinding machine with drive of the grinding spindle directly through the shaft of a three-phase or single-phase AC motor Expired DE339677C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE339677T

Publications (1)

Publication Number Publication Date
DE339677C true DE339677C (en) 1921-08-01

Family

ID=6223889

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT339677D Expired DE339677C (en) Grinding machine with drive of the grinding spindle directly through the shaft of a three-phase or single-phase AC motor

Country Status (1)

Country Link
DE (1) DE339677C (en)

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