GB1246444A - Electric stepping motor - Google Patents

Electric stepping motor

Info

Publication number
GB1246444A
GB1246444A GB3969567A GB3969567A GB1246444A GB 1246444 A GB1246444 A GB 1246444A GB 3969567 A GB3969567 A GB 3969567A GB 3969567 A GB3969567 A GB 3969567A GB 1246444 A GB1246444 A GB 1246444A
Authority
GB
United Kingdom
Prior art keywords
stator
rotor
pole
stepping motor
energized
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
GB3969567A
Inventor
Raymond Rochester Reeves
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.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB3969567A priority Critical patent/GB1246444A/en
Publication of GB1246444A publication Critical patent/GB1246444A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/06—Rolling motors, i.e. motors having the rotor axis parallel to the stator axis and following a circular path as the rotor rolls around the inside or outside of the stator ; Nutating motors, i.e. having the rotor axis parallel to the stator axis inclined with respect to the stator axis and performing a nutational movement as the rotor rolls on the stator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
    • H02K37/24—Structural association with auxiliary mechanical devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

1,246,444. Electric motors; motor driving arrangements. R. R. REEVES. 28 Nov., 1968 [30 Aug., 1967], No. 39695/67. Heading H2A. An electric stepping motor comprises a stator with three or more circumferentially displaced poles and a rotor moving eccentrically in relation to the axis of the stator. As shown in Figs. 1, 2, the stepping motor comprises four stator poles each having two spaced coils 6a. The rotor is an annulus of soft iron mounted eccentrically within the stator bore and arranged to transmit rotary motion to an output shaft 5 through two mutually perpendicular key-keyway sets 14, 15, Fig. 3 (not shown) or through a flexible bellows 22, Fig. 4 (not shown) or through eccentric cams 25, Fig. 5 (not shown) mounted within the rotor. Copper bars (28, Fig. 3) in slots in the rotor form a damping winding, the stator and rotor are provided with intermeshing teeth 20, 21, and inductive pick-offs 27 detect rotor position. The stator windings are energized through a ring counter 70, Fig. 7 (not shown). A permanent magnet, e.g. 18, associated with each stator pole holds the rotor against a given pole until the next pole is energized. The p.m. holding torque may be supplemented by energizing the corresponding pole windings. In a modification, Fig. 6 (not shown) having an external rotor (32) adapted to roll round the stator, gearing between the stator and rotor takes the form of pins on the stator engaging holes in the rotor.
GB3969567A 1967-08-30 1967-08-30 Electric stepping motor Expired GB1246444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3969567A GB1246444A (en) 1967-08-30 1967-08-30 Electric stepping motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3969567A GB1246444A (en) 1967-08-30 1967-08-30 Electric stepping motor

Publications (1)

Publication Number Publication Date
GB1246444A true GB1246444A (en) 1971-09-15

Family

ID=10410969

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3969567A Expired GB1246444A (en) 1967-08-30 1967-08-30 Electric stepping motor

Country Status (1)

Country Link
GB (1) GB1246444A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2628581A1 (en) * 1988-03-14 1989-09-15 Crouzet Sa DETACHABLE LINEAR STEPPER MOTOR WITH RECENTENT ROTOR
EP0376129A1 (en) * 1988-12-28 1990-07-04 Kabushiki Kaisha Big Electric motor
GB2330011A (en) * 1997-10-02 1999-04-07 Michael John Flowerday Rolling rotor motor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2628581A1 (en) * 1988-03-14 1989-09-15 Crouzet Sa DETACHABLE LINEAR STEPPER MOTOR WITH RECENTENT ROTOR
EP0333539A1 (en) * 1988-03-14 1989-09-20 SEXTANT Avionique Disconnectible linear stepping motor with a recentered rotor
US5019732A (en) * 1988-03-14 1991-05-28 Sextant Avionique Disengageable linear stepper motor with recentered rotor
EP0376129A1 (en) * 1988-12-28 1990-07-04 Kabushiki Kaisha Big Electric motor
GB2330011A (en) * 1997-10-02 1999-04-07 Michael John Flowerday Rolling rotor motor

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