US3886255A - Device including a pulley, a clutch, a retarder, and a brake, in particular for hoisting gears - Google Patents
Device including a pulley, a clutch, a retarder, and a brake, in particular for hoisting gears Download PDFInfo
- Publication number
- US3886255A US3886255A US353175A US35317573A US3886255A US 3886255 A US3886255 A US 3886255A US 353175 A US353175 A US 353175A US 35317573 A US35317573 A US 35317573A US 3886255 A US3886255 A US 3886255A
- Authority
- US
- United States
- Prior art keywords
- shaft
- bell
- housing
- brake
- retarder
- 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 - Lifetime
Links
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000033228 biological regulation Effects 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/02—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type
- H02K49/04—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
- H02K49/043—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type with a radial airgap
-
- 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
- H02K7/114—Structural association with clutches, brakes, gears, pulleys or mechanical starters with dynamo-electric clutches in combination with brakes
Definitions
- ABSTRACT [30] Forei n A cation Prior" Data
- the invention relates to an adjustable speed driving g pp y 4 device. Apr. 21, 1972 France 149 4/72
- the motor 54 drives directly the u to l of an eddy n 310 7 current clutch 51.
- the double bell 7-10 is keyed to g 310/9 qfif lgjz the adjustable speed output shaft 2.
- the skirt 10 [58] Field "310/92 l0l rotates round the stationary inductor 8 of the eddy 192/12 current brake.
- a safety brake 53 is locked by the I spring 15 when the electromagnet 12 is off.
- the invention relates to a device of a new type, comprising a pulley, a clutch, a retarder, and a brake, and intended to be fitted to a hoisting gear, such as a crane, a travelling crane, or an elevator.
- a crane or a travelling crane must be provided with one or more winches for controlling lifting or handling cables, and one or more driving gears for angular settings.
- motor units provided with coupling, braking, or speed varying devices.
- Such devic esare used separately, and mounting them on a crane or a travelling crane requires the provision of assembling and synchronizing systems. Furthermore, the whole assembly is subject to failures, and the maintenance thereof is difficult.
- the object of the present invention is to obviate such inconveniences.
- a driving device is characterized in that it appears as a one-piece variable speed unit comprising the combination of an eddy current clutch, an eddy current retarder, and a safety brake.
- FIG. 1 is a partly sectional general view of a variable speed driving device according to the invention.
- FIG. 2 is a front view of same, when looking in the direction of the arrow II in FIG. 1.
- FIG. 3 is a similar view of a modified embodiment, wherein a single electric motor drives two variable speed systems.
- the driving gear shown in FIGS. 1 and 2 includes three main members, to wit:
- the assembly is driven by an electric motor 54.
- Said motor 54 runs at constant speed (such as, for instance, 1500 rpm). From the motor 54 the mechanism l-5253 according to the invention enables the output shaft 55 to be rotated at a variable speed, said shaft driving a system 56.
- the eddy current clutch 51 includes:
- a rotary inductor 1 adapted to rotate freely on a shaft 2, and integral with a driving pulley 3; two rings 4 for the supply of electric current to the inductor 1; a fan 5 for cooling the assembly; a double bell, the hub 6 of which is keyed to the shaft while one of its skirts, that indicated at 7, surrounds the inductor 1, around which it defines a gap.
- the eddy current retarder includes:
- a stationary inductor 8 integral with the casing 9 of the unit (said inductor 8 is power supplied);
- skirt 10 of the double bell said skirt l0 surrounds the stationary inductor 8, around which it defines a gap.
- the safety brake includes:
- a movable armature 13 capable of being attracted in the direction of the arrow 14 when the coil 12 is alive, or of being repelled in the opposite direction by a'return spring 15 when the coil 12 is off;
- Endless belts 18 connect the multi-groove pulley 3 of the unit to the pulley 19 of the driving motor 54.
- the end 55 of the shaft 2 drives the driven system 56.
- a tachymetric dynamo 20 is mounted on the opposite end of the shaft 2, that is, that end which corresponds to the stationary inductor 8, whereby the speed of rotation of said shaft 2 can be controlled.
- the pulley 19 of the motor 54 rotates at constant speed. It drives the inductor l of the clutch 51, at constant speed as well.
- the rings 4 are supplied with electric current through the brushes 2], and the electric field thus produced rotates the skirt 7 of the double bell, which transmits the motion to the system 56 through the shaft 2.
- the current is interrupted in the inductor 1 of the clutch, and set at a suitable value in the inductor 8 of the retarder.
- This arrangement is used, for instance, when the assembly is used for slowing down the fall of a load coming down under its own weight, or for slowing down the jib of a rotating crane.
- Reversing the direction of rotation of the shaft 2 is obtained by reversing the motor 54.
- the speed can be regulated either manually or automatically.
- Said regulation is manual when acting on a double potentiometer, one branch of which supplies the inductor l of the clutch 51, while the other branch supplies the inductor 8 of the retarder 52.
- the electric connections are made in a way such that the current in the inductor 1 of the clutch 51 increases when the current in the inductor 8 of the retarder 52 decreases.
- the regulation is automatic if the correction of the currents in the inductors l and 8 is ensured, under electronic control, from the difference between the theoretical speed selected for the shaft 2 and the speed indication actually measured by the techymetric dynamo 20.
- the electromagnet 12 is kept alive, that is, the brake 53 is released (lining 17 spaced from the friction surface 11).
- the motor 54 may be used for driving a single operative system 56, as shown in FIGS. 1 and 2. It may be used as well for driving with adjustable speed two systems 156 and 256, as shown in FIG. 3. To this end, it is only necessary to make the endless belts 18 run along a triangular path between the pulleys 19and 3, and the pulley 103 corresponding-to the system 156.
- the safety brake -5 3- is clamped automatically in the event of a lack of electric current.
- An eddy current coupling device comprising:
- a retarder inductor coil rigidly secured to the housing, surrounding the shaft, and substantially completely disposed within the first bell skirt and defining an air. gap therebetween,
- g. means drivably coupling the output shaft to the driven member
- a driver inductor coil rigidly secured to the driven member, rotatably secured to and surrounding the shaft, and substantially completely disposed within the second bell skirt and defining an air gap therebetween,
- slip ring means surrounding the shaft and rotatable with the driver inductor coil for delivering electrical energy thereto
- Q j an electromechanical safety brake mounted to the housing and including a brake shoe adapted to bear against one of the bell skirts upon actuation.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
- Braking Arrangements (AREA)
- Control Of Velocity Or Acceleration (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Structure Of Transmissions (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7214944A FR2180616B1 (fr) | 1972-04-21 | 1972-04-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3886255A true US3886255A (en) | 1975-05-27 |
Family
ID=9097598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US353175A Expired - Lifetime US3886255A (en) | 1972-04-21 | 1973-04-20 | Device including a pulley, a clutch, a retarder, and a brake, in particular for hoisting gears |
Country Status (8)
Country | Link |
---|---|
US (1) | US3886255A (fr) |
JP (1) | JPS5743517B2 (fr) |
BR (1) | BR7302933D0 (fr) |
DE (1) | DE2319901C2 (fr) |
ES (1) | ES413310A1 (fr) |
FR (1) | FR2180616B1 (fr) |
GB (1) | GB1426445A (fr) |
IT (1) | IT983270B (fr) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4096404A (en) * | 1977-02-03 | 1978-06-20 | Donat Konstantinovich Sukhanov | Hoisting mechanism |
US4628752A (en) * | 1984-03-22 | 1986-12-16 | Smiths Industries Public Limited Company | Actuators and actuator assemblies |
US5042794A (en) * | 1990-03-02 | 1991-08-27 | Giant Manufacturing Co., Ltd. | Load applying device for an exercise bicycle |
DE19832694A1 (de) * | 1998-07-21 | 2000-01-27 | Kendrion Binder Magnete Gmbh | Bremseinrichtung für Linearantriebe |
US20110298309A1 (en) * | 2010-06-04 | 2011-12-08 | Robotis Co., Ltd. | Actuator module applicable to various forms of joint |
US9599170B1 (en) | 2010-06-21 | 2017-03-21 | Hydro-Gear Limited Partnership | Electric motor clutch/brake assembly |
CN110725874A (zh) * | 2019-09-29 | 2020-01-24 | 扬州国脉电力工具有限公司 | 双卷筒机动绞磨连锁刹车扭力分离结构 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS605229U (ja) * | 1983-06-23 | 1985-01-16 | 株式会社 三英社製作所 | 立上りケ−ブル用防護管 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2233060A (en) * | 1939-12-02 | 1941-02-25 | Nat Pneumatic Co | Combined clutch and brake |
US2289330A (en) * | 1938-06-28 | 1942-07-07 | Fischer Franz | Control device |
US2630467A (en) * | 1946-10-21 | 1953-03-03 | Eaton Mfg Co | Electric clutch and brake controlled press |
US2636138A (en) * | 1946-04-22 | 1953-04-21 | Clark Controller Co | Power press control |
US2806967A (en) * | 1954-06-09 | 1957-09-17 | Cutler Hammer Inc | Control means for power operated forming presses and the like |
US2809312A (en) * | 1954-07-01 | 1957-10-08 | Cutler Hammer Inc | Control for power operated presses and the like |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR981262A (fr) * | 1943-03-25 | 1951-05-24 | Transmission électro-mécanique de puissance | |
US2471505A (en) * | 1947-01-04 | 1949-05-31 | Martin P Winther | Punch press |
US2630466A (en) * | 1950-01-24 | 1953-03-03 | Landis Robert | Eddy-current clutch and brake motor |
DE972151C (de) * | 1951-08-21 | 1959-05-27 | Elektro Mechanik G M B H | Elektrisch angetriebene Fahr- oder Hubwerksanlage von Hebezeugen mit Magnetpulverkupplungen und/oder -bremsen |
DE1734353U (de) * | 1954-12-30 | 1956-11-22 | Motorenfabrik Heinrich Liesen | Ladewinde. |
US2939973A (en) * | 1956-10-10 | 1960-06-07 | Bliss E W Co | Torque transmitting mechanism |
-
1972
- 1972-04-21 FR FR7214944A patent/FR2180616B1/fr not_active Expired
-
1973
- 1973-04-03 ES ES413310A patent/ES413310A1/es not_active Expired
- 1973-04-18 GB GB1881973A patent/GB1426445A/en not_active Expired
- 1973-04-19 JP JP48044949A patent/JPS5743517B2/ja not_active Expired
- 1973-04-19 IT IT7244/73A patent/IT983270B/it active
- 1973-04-19 DE DE2319901A patent/DE2319901C2/de not_active Expired
- 1973-04-20 US US353175A patent/US3886255A/en not_active Expired - Lifetime
- 1973-04-23 BR BR2933/73A patent/BR7302933D0/pt unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2289330A (en) * | 1938-06-28 | 1942-07-07 | Fischer Franz | Control device |
US2233060A (en) * | 1939-12-02 | 1941-02-25 | Nat Pneumatic Co | Combined clutch and brake |
US2636138A (en) * | 1946-04-22 | 1953-04-21 | Clark Controller Co | Power press control |
US2630467A (en) * | 1946-10-21 | 1953-03-03 | Eaton Mfg Co | Electric clutch and brake controlled press |
US2806967A (en) * | 1954-06-09 | 1957-09-17 | Cutler Hammer Inc | Control means for power operated forming presses and the like |
US2809312A (en) * | 1954-07-01 | 1957-10-08 | Cutler Hammer Inc | Control for power operated presses and the like |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4096404A (en) * | 1977-02-03 | 1978-06-20 | Donat Konstantinovich Sukhanov | Hoisting mechanism |
US4628752A (en) * | 1984-03-22 | 1986-12-16 | Smiths Industries Public Limited Company | Actuators and actuator assemblies |
US5042794A (en) * | 1990-03-02 | 1991-08-27 | Giant Manufacturing Co., Ltd. | Load applying device for an exercise bicycle |
DE19832694A1 (de) * | 1998-07-21 | 2000-01-27 | Kendrion Binder Magnete Gmbh | Bremseinrichtung für Linearantriebe |
DE19832694C2 (de) * | 1998-07-21 | 2002-09-12 | Kendrion Binder Magnete Gmbh | Polreibungsbremse |
US20110298309A1 (en) * | 2010-06-04 | 2011-12-08 | Robotis Co., Ltd. | Actuator module applicable to various forms of joint |
US9599170B1 (en) | 2010-06-21 | 2017-03-21 | Hydro-Gear Limited Partnership | Electric motor clutch/brake assembly |
CN110725874A (zh) * | 2019-09-29 | 2020-01-24 | 扬州国脉电力工具有限公司 | 双卷筒机动绞磨连锁刹车扭力分离结构 |
CN110725874B (zh) * | 2019-09-29 | 2020-11-10 | 扬州国脉电力工具有限公司 | 双卷筒机动绞磨连锁刹车扭力分离结构 |
Also Published As
Publication number | Publication date |
---|---|
GB1426445A (en) | 1976-02-25 |
JPS4920564A (fr) | 1974-02-23 |
IT983270B (it) | 1974-10-31 |
DE2319901C2 (de) | 1986-05-22 |
FR2180616A1 (fr) | 1973-11-30 |
FR2180616B1 (fr) | 1975-05-30 |
JPS5743517B2 (fr) | 1982-09-14 |
DE2319901A1 (de) | 1973-10-31 |
ES413310A1 (es) | 1976-01-16 |
BR7302933D0 (pt) | 1974-01-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2443763A (en) | Reel motor control | |
US3886255A (en) | Device including a pulley, a clutch, a retarder, and a brake, in particular for hoisting gears | |
US3921770A (en) | Arrangement for driving two output shafts | |
US3366903A (en) | Magnetic tensioning device | |
US2746583A (en) | Crane hoist mechanism | |
US3477695A (en) | Lifting winches | |
US3957161A (en) | Rotary crane | |
US2406156A (en) | Control device for hoisting mechanism | |
US3826342A (en) | Unit transmission gear including a decelerating device and an electromagnetic brake | |
US3394278A (en) | Non-contact induction clutch | |
US3309064A (en) | Winch mechanism with dual drive | |
US2962139A (en) | Solenoid operated clutch-brake device | |
US2605651A (en) | Variable-speed transmission gear | |
US2710738A (en) | Electric hoist | |
US3784852A (en) | Speed selector, in particular for cranes or hoisting gears | |
US2357517A (en) | Crane drive system | |
CN109230347A (zh) | 张紧装置及具有该张紧装置的带式输送机 | |
US921646A (en) | Friction drive apparatus. | |
US3783795A (en) | Propulsion systems using squirrel cage induction motors to operate from an ac or dc source | |
CN209382869U (zh) | 张紧装置及具有该张紧装置的带式输送机 | |
US4687461A (en) | Multiple rotary drive system for a textile-working machine | |
US2693263A (en) | Electromagnetic coupling or brake | |
JPH08289502A (ja) | 電気駆動装置 | |
US1405640A (en) | Electrically-controlled transmission | |
US1537624A (en) | Hoist |