EP0050073A1 - Treuil à moteur électrique avec poulie à gorge de coincement pour l'actionnement d'un câble de traction ou de levage à brin libre - Google Patents
Treuil à moteur électrique avec poulie à gorge de coincement pour l'actionnement d'un câble de traction ou de levage à brin libre Download PDFInfo
- Publication number
- EP0050073A1 EP0050073A1 EP81401518A EP81401518A EP0050073A1 EP 0050073 A1 EP0050073 A1 EP 0050073A1 EP 81401518 A EP81401518 A EP 81401518A EP 81401518 A EP81401518 A EP 81401518A EP 0050073 A1 EP0050073 A1 EP 0050073A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pulley
- shaft
- motor
- winch
- strand
- 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.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
- B66D1/74—Capstans
- B66D1/7415—Friction drives, e.g. pulleys, having a cable winding angle of less than 360 degrees
Definitions
- the object of the invention is to propose a winch with an electric motor with a pulley with wedging groove for actuating a pulling or lifting cable with free strand, this winch being designed to be of such a compact construction and also simple as possible while having perfect operational safety and allowing a very high reduction ratio between the fast shaft of the motor and the pulley with wedging groove, obtained with a very small bulk in the axial direction.
- the desired result is essentially obtained by the direct association of the wedging groove pulley with a single-stage reducer operating according to the known principle known as the Ferguson paradox, that is to say d '' a reducer c Q taking, around a sun gear with external teeth fixed to the output shaft of the motor, a cage of planetary gears which mesh both with the solar teeth and with the two internal teeth of a fixed crown and a movable receiving crown, this movable receiving crown being, in accordance with the invention, integral with the blocking groove pulley mounted with the reduction gear inside the casing of the device at one end of the electric motor .
- the Ferguson paradox that is to say d '' a reducer c Q taking, around a sun gear with external teeth fixed to the output shaft of the motor, a cage of planetary gears which mesh both with the solar teeth and with the two internal teeth of a fixed crown and a movable receiving crown, this movable receiving crown being, in accordance with the invention, integral with the blocking groove pulley mounted with the
- the blocking groove pulley rotates on an inner bearing of the casing between the motor and the reduction gear and the face of this pulley adjacent to the reduction gear carries the receiving crown with internal teeth actuated by the reduction gear, which ensures that the device a remarkable balancing.
- the invention also provides, on the end of the fast shaft of the motor passing through the reduction gear, the mounting of a brake constituted by a friction disc interposed between two braking washers while a freewheel device, interposed between the friction disc and the motor shaft make it integral with the friction disc for a single direction of rotation.
- This freewheel device advantageously consists of a simple helical spring with contiguous turns applied against the shaft, while one end of this spring is fixed to the friction disc.
- the housing of the wedge groove pulley on one side of which the motor is directly mounted has upward a carrying handle secured to a device suspension member while, downwards, this casing has an opening for the passage of the free strand and the stretched strand of the lifting or traction cable wound over a large fraction of the periphery of the blocking groove of the pulley.
- the motor is associated with a terminal box provided with a cover which can be used as a support base for placing it conveniently.
- the terminal box can contain the starting capacitor and its relay as well as the up and down limit switches and their control mechanism while not requiring a minimum of wiring for the motor connection.
- the electric motor 1 the rotor of which is indicated at 2 and the stator at 3, is mounted directly on one face of the casing 4 of the apparatus, an annular part 5 of which is crossed by the motor output arhre 6.
- the face of the casing opposite the motor has around the annular part 5 a housing 7 for receiving the wedging pulley 8 mounted on a bearing 9 around this part 5.
- This pulley has a V-shaped groove, indicated at 10, in which is engaged the lifting or traction cable 11 (figure 2).
- the part of the casing 4 located around the housing 7 has a downward opening 12 traversed by the two strands of cable comprising the stretched strand 13 coupled to the load (not shown) and the free strand or soft strand 14.
- the pulley 8 with wedging groove is associated with an epicycloidal reducer of the type using Ferguson's paradox, that is to say comprising a cage of planetary gears which mesh with both an external toothing of a solar crown carried by the fast shaft and with two internal toothing with very little different numbers of teeth provided on a fixed crown and on a receiving crown integral with the pulley 8.
- the solar crown, indicated at 21, thus meshes with two wheels planetary 22 whose axes 23 are carried by a rotating cage 24.
- Each of these planetary meshes both with the internal toothing of a fixed crown 25 carried by a casing tip 26 and with the internal toothing of a receiving crown 27 secured to the pulley 8.
- the toothed crowns 25-27 are coaxial and both mesh with the same planetary wheels 22, their primitive circles and their numbers of teeth are slightly different and, according to Ferguson's paradox, the meshing is made possible by a different cutting of the teeth of the crowns 25-27 and by an appropriate cutting of the planetary wheels 22.
- the numbers of teeth N1, N2, N3, N4 of the teeth 21, 22, 25, 27 can be respectively 8, 22, 56, 54 and then the reduction ratio, that is to say the ratio of the angular speed of the sun wheel 21 to the angular speed of the teeth 27 is equal to N4 (N3 + N1) / N1 (N4-N3), i.e.
- the jamming pulley 8 is housed between the electric motor and the reduction gear, which ensures good balancing of the device.
- the large reduction ratio (216), obtained by the reduction gear indicated above, makes this reduction gear hardly reversible, which is very suitable for an apparatus intended for lifting loads, and it allows the use of a simple brake. , since subject to a very low torque. As a result of this reduction ratio, the load applied to the cable cannot cause the winch to deflect when the engine is stopped in the direction of increasing the load. On the other hand, if the engine is stopped during a descent, there is a low risk of a slow continuation of the movement under the action of the load. To avoid this risk with certainty, a brake is applied to the motor shaft 6, which acts only in one direction of rotation.
- the shaft 6 has at its end a cylindrical part 31 on which is wound a helical spring 32 with contiguous turns, one end of which is fixed to a friction disc 33 inserted between two braking washers 34 resiliently tightened in part. and other of this friction disc.
- the spring 32 is mounted in such a way that, when the shaft 6 rotates in the direction corresponding to the rise in the load, it tends to unwind the turns of the spring by loosening the grip of this spring on the shaft, so that the friction disc 33 is not driven by the shaft.
- the shaft 6 rotates in the direction of descent, it increases the tightening of the turns of the spring on the shaft, so that the brake disc driven by the shaft is braked by the washers between which it is tight.
- the casing 4 is advantageously extended upwards by two parallel cheeks 35 on which is mounted a carrying handle 36 comprising a mooring pin 37 which crosses the cheeks 35 while being immobilized therein by a pin elastic 38.
- a lower terminal box opposite the carrying handle that is to say oriented downwards.
- This box which can receive the starting capacitor and its relay as well as the up and down limit switches, is closed by a special cover 50 designed to be used as a support base for conveniently placing the device. very stable when this device is not suspended by slinging by means of pin 37.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Pulleys (AREA)
- Braking Arrangements (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8021593 | 1980-10-09 | ||
FR8021593A FR2491902B1 (fr) | 1980-10-09 | 1980-10-09 | Treuil a moteur electrique avec poulie a gorge de coincement pour l'actionnement d'un cable de traction ou de levage a brin libre |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0050073A1 true EP0050073A1 (fr) | 1982-04-21 |
Family
ID=9246711
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81401518A Withdrawn EP0050073A1 (fr) | 1980-10-09 | 1981-10-02 | Treuil à moteur électrique avec poulie à gorge de coincement pour l'actionnement d'un câble de traction ou de levage à brin libre |
Country Status (6)
Country | Link |
---|---|
US (1) | US4434973A (es) |
EP (1) | EP0050073A1 (es) |
JP (2) | JPS5790394A (es) |
CA (1) | CA1163623A (es) |
ES (1) | ES506126A0 (es) |
FR (1) | FR2491902B1 (es) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3728494C1 (de) * | 1987-08-26 | 1988-12-08 | Habegger Maschf | Tragbare Seilzugmaschine |
EP0363800A1 (en) * | 1988-10-13 | 1990-04-18 | Power Climber Inc. | Hoist apparatus |
FR2646661A1 (fr) * | 1989-05-05 | 1990-11-09 | Maxwell Marine Ltd | Treuil pour manipulation d'ancre |
EP0677480A1 (de) * | 1994-03-24 | 1995-10-18 | Gebrueder Roeck Ohg - Snc D. Simon Roeck | Kompaktes Durchlaufseilzuggerät |
DE19851708A1 (de) * | 1998-10-30 | 2000-05-11 | Mannesmann Ag | Windwerk mit einem Gehäuse |
US6241215B1 (en) | 1998-10-30 | 2001-06-05 | Mannesmann Ag | Portable winch |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4884783A (en) * | 1988-02-12 | 1989-12-05 | Thorn, Inc. | Hoist with oil cooled brake |
US6371248B1 (en) * | 1998-12-14 | 2002-04-16 | Inventio Ag | Drive unit for elevators |
SE532850C2 (sv) * | 2007-11-09 | 2010-04-20 | Selden Mast Ab | Anordning för linvinsch på segelbåt |
US9908757B2 (en) | 2010-03-08 | 2018-03-06 | Wizard Products, Llc | Gas powered self contained portable winch |
US8434742B2 (en) * | 2010-03-08 | 2013-05-07 | Wizard Products, Llc | Gas powered self contained portable winch |
CN103466484A (zh) * | 2013-09-24 | 2013-12-25 | 常熟市永固起重设备安装工程有限公司 | 齿轮式电动吊台 |
CN109516394B (zh) * | 2018-09-30 | 2020-09-01 | 武汉船用机械有限责任公司 | 绞车及绞车的安装方法 |
SE543179C2 (en) * | 2019-04-09 | 2020-10-20 | Actsafe Systems AB | A portable power-driven system |
TWI717270B (zh) * | 2020-04-30 | 2021-01-21 | 徐瑞峯 | 電動捲揚機之結構 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1329107A (en) * | 1919-06-14 | 1920-01-27 | James P O'bryan | Hoisting device |
US1347785A (en) * | 1920-07-27 | Electric hoist | ||
DE348303C (de) * | 1922-02-06 | Carl Gensel Dipl Ing | Elektrisch betriebener Flaschenzug | |
DE486843C (de) * | 1922-09-13 | 1929-11-27 | Carl Bomnueter Dipl Ing | Elektrisch betriebener Flaschenzug |
DE495477C (de) * | 1928-03-21 | 1930-04-07 | Demag Akt Ges | Elektrozug mit Treibscheiben |
GB731009A (en) * | 1952-10-11 | 1955-06-01 | Albert Vinson | Speed-reducing device for winches chain lifts and the like |
GB2041867A (en) * | 1979-02-13 | 1980-09-17 | Sky Safety Eng Pte Ltd | Drive Mechanism |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1513449A (fr) * | 1966-12-28 | 1968-02-13 | Pomagalski Jean Sa | Perfectionnements aux treuils |
-
1980
- 1980-10-09 FR FR8021593A patent/FR2491902B1/fr not_active Expired
-
1981
- 1981-10-02 EP EP81401518A patent/EP0050073A1/fr not_active Withdrawn
- 1981-10-07 US US06/309,363 patent/US4434973A/en not_active Expired - Fee Related
- 1981-10-08 CA CA000387547A patent/CA1163623A/en not_active Expired
- 1981-10-08 ES ES506126A patent/ES506126A0/es active Granted
- 1981-10-09 JP JP56161927A patent/JPS5790394A/ja active Pending
-
1989
- 1989-11-15 JP JP1989133020U patent/JPH0237825Y2/ja not_active Expired
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1347785A (en) * | 1920-07-27 | Electric hoist | ||
DE348303C (de) * | 1922-02-06 | Carl Gensel Dipl Ing | Elektrisch betriebener Flaschenzug | |
US1329107A (en) * | 1919-06-14 | 1920-01-27 | James P O'bryan | Hoisting device |
DE486843C (de) * | 1922-09-13 | 1929-11-27 | Carl Bomnueter Dipl Ing | Elektrisch betriebener Flaschenzug |
DE495477C (de) * | 1928-03-21 | 1930-04-07 | Demag Akt Ges | Elektrozug mit Treibscheiben |
GB731009A (en) * | 1952-10-11 | 1955-06-01 | Albert Vinson | Speed-reducing device for winches chain lifts and the like |
GB2041867A (en) * | 1979-02-13 | 1980-09-17 | Sky Safety Eng Pte Ltd | Drive Mechanism |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3728494C1 (de) * | 1987-08-26 | 1988-12-08 | Habegger Maschf | Tragbare Seilzugmaschine |
EP0363800A1 (en) * | 1988-10-13 | 1990-04-18 | Power Climber Inc. | Hoist apparatus |
FR2646661A1 (fr) * | 1989-05-05 | 1990-11-09 | Maxwell Marine Ltd | Treuil pour manipulation d'ancre |
EP0677480A1 (de) * | 1994-03-24 | 1995-10-18 | Gebrueder Roeck Ohg - Snc D. Simon Roeck | Kompaktes Durchlaufseilzuggerät |
DE19851708A1 (de) * | 1998-10-30 | 2000-05-11 | Mannesmann Ag | Windwerk mit einem Gehäuse |
DE19851708C2 (de) * | 1998-10-30 | 2000-08-17 | Mannesmann Ag | Windwerk mit einem Gehäuse |
US6241215B1 (en) | 1998-10-30 | 2001-06-05 | Mannesmann Ag | Portable winch |
Also Published As
Publication number | Publication date |
---|---|
JPH0237825Y2 (es) | 1990-10-12 |
CA1163623A (en) | 1984-03-13 |
FR2491902B1 (fr) | 1985-12-06 |
ES8207091A1 (es) | 1982-09-01 |
JPH0264586U (es) | 1990-05-15 |
FR2491902A1 (fr) | 1982-04-16 |
US4434973A (en) | 1984-03-06 |
ES506126A0 (es) | 1982-09-01 |
JPS5790394A (en) | 1982-06-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): CH DE GB IT NL SE |
|
ITCL | It: translation for ep claims filed |
Representative=s name: DR. ING. A. RACHELI & C. |
|
TCNL | Nl: translation of patent claims filed | ||
DET | De: translation of patent claims | ||
17P | Request for examination filed |
Effective date: 19820915 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19840410 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: DESPLATS, ANDRE |