FR2305328A1 - Electric motor with automatic brake - has retractable locking device holding brake plate free of disc - Google Patents
Electric motor with automatic brake - has retractable locking device holding brake plate free of discInfo
- Publication number
- FR2305328A1 FR2305328A1 FR7509443A FR7509443A FR2305328A1 FR 2305328 A1 FR2305328 A1 FR 2305328A1 FR 7509443 A FR7509443 A FR 7509443A FR 7509443 A FR7509443 A FR 7509443A FR 2305328 A1 FR2305328 A1 FR 2305328A1
- Authority
- FR
- France
- Prior art keywords
- disc
- locking device
- electric motor
- plate
- brake
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D59/00—Self-acting brakes, e.g. coming into operation at a predetermined speed
- F16D59/02—Self-acting brakes, e.g. coming into operation at a predetermined speed spring-loaded and adapted to be released by mechanical, fluid, or electromagnetic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
- H02K7/1021—Magnetically influenced friction brakes
- H02K7/1023—Magnetically influenced friction brakes using electromagnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
- H02K7/1021—Magnetically influenced friction brakes
- H02K7/1023—Magnetically influenced friction brakes using electromagnets
- H02K7/1025—Magnetically influenced friction brakes using electromagnets using axial electromagnets with generally annular air gap
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/18—Electric or magnetic
- F16D2121/20—Electric or magnetic using electromagnets
- F16D2121/22—Electric or magnetic using electromagnets for releasing a normally applied brake
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The machine with a rotary component, particularly an electric motor, has a single disc or multiple ones fixed to the component, and a brake plate prevented from rotating and spring-loaded in the axial direction against the disc so as to operate automatically. A solenoid or other suitable device overcomes the spring and holds the plate free. A retractable locking device (20) holds the plate (13) clear of the disc (11), bearing against a face on the former. The locking device is normally held clear of the plate by a spring, so as to allow the automatic brake to operate freely. An actuating mechanism (24) extends the device into the operative position, in which it is retained by the pressure of the brake plate face against it.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7509443A FR2305328A1 (en) | 1975-03-26 | 1975-03-26 | Electric motor with automatic brake - has retractable locking device holding brake plate free of disc |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7509443A FR2305328A1 (en) | 1975-03-26 | 1975-03-26 | Electric motor with automatic brake - has retractable locking device holding brake plate free of disc |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2305328A1 true FR2305328A1 (en) | 1976-10-22 |
FR2305328B3 FR2305328B3 (en) | 1977-12-02 |
Family
ID=9153107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7509443A Granted FR2305328A1 (en) | 1975-03-26 | 1975-03-26 | Electric motor with automatic brake - has retractable locking device holding brake plate free of disc |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2305328A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0043498A1 (en) * | 1980-06-25 | 1982-01-13 | Robert Stahlschmidt | Electromotor |
EP0290059A2 (en) * | 1987-03-09 | 1988-11-09 | C. van der Lely N.V. | An implement for displacing crop |
FR2699824A1 (en) * | 1992-12-29 | 1994-07-01 | Gubri Sa Ets L | Descending shutter for fire protection |
EP1422188A1 (en) * | 2002-11-21 | 2004-05-26 | Liebherr-Werk Biberach GmbH | Clamping brake for the motor of a rotary crane mast |
EP1503482A1 (en) * | 2003-07-29 | 2005-02-02 | Moteurs Leroy-Somer | A brake and an electrical machine fitted with such a brake |
WO2008124999A1 (en) * | 2007-04-13 | 2008-10-23 | Zhejiang Xinyi Control System Co., Ltd. | A driving device for adjustable furniture |
-
1975
- 1975-03-26 FR FR7509443A patent/FR2305328A1/en active Granted
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0043498A1 (en) * | 1980-06-25 | 1982-01-13 | Robert Stahlschmidt | Electromotor |
EP0290059A2 (en) * | 1987-03-09 | 1988-11-09 | C. van der Lely N.V. | An implement for displacing crop |
EP0290059A3 (en) * | 1987-03-09 | 1988-12-14 | C. Van Der Lely N.V. | An implement for displacing crop |
FR2699824A1 (en) * | 1992-12-29 | 1994-07-01 | Gubri Sa Ets L | Descending shutter for fire protection |
EP1422188A1 (en) * | 2002-11-21 | 2004-05-26 | Liebherr-Werk Biberach GmbH | Clamping brake for the motor of a rotary crane mast |
EP1503482A1 (en) * | 2003-07-29 | 2005-02-02 | Moteurs Leroy-Somer | A brake and an electrical machine fitted with such a brake |
FR2858487A1 (en) * | 2003-07-29 | 2005-02-04 | Leroy Somer Moteurs | BRAKE AND ELECTRIC MACHINE EQUIPPED WITH SUCH BRAKE |
CN100446385C (en) * | 2003-07-29 | 2008-12-24 | 勒鲁瓦-索梅尔发动机公司 | A brake and an electrical machine fitted with such a brake |
WO2008124999A1 (en) * | 2007-04-13 | 2008-10-23 | Zhejiang Xinyi Control System Co., Ltd. | A driving device for adjustable furniture |
Also Published As
Publication number | Publication date |
---|---|
FR2305328B3 (en) | 1977-12-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |