ES301582A1 - Improvements in and relating to two-drum winches - Google Patents
Improvements in and relating to two-drum winchesInfo
- Publication number
- ES301582A1 ES301582A1 ES0301582A ES301582A ES301582A1 ES 301582 A1 ES301582 A1 ES 301582A1 ES 0301582 A ES0301582 A ES 0301582A ES 301582 A ES301582 A ES 301582A ES 301582 A1 ES301582 A1 ES 301582A1
- Authority
- ES
- Spain
- Prior art keywords
- drum
- assembly
- wheel
- unit
- belt
- 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
Links
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
- B66D1/26—Rope, cable, or chain winding mechanisms; Capstans having several drums or barrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/01—Winches, capstans or pivots
- B66D2700/0125—Motor operated winches
- B66D2700/0166—Winches with multiple drums or with drums with multiple parts of different diameter
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
A two-drum winch for a crane having one drum 10 for hoisting the load and the other drum 11 for erecting the crane comprises an electric motor 1 coupled through a change speed pulley and belt arrangement 2a, 3a, 4 to a reduction unit 5, a means to couple the drive from the unit 5 selectively to either of the drums 10, 11 and no-current electric brake operable to lock the reduction unit 5 in the event of interrupted electricity supply to the motor 1. The drive shaft 6a from the unit 5 is splined and slidably carries an assembly comprising a dog clutch 8 secured to a gear-wheel 7. The clutch 8 is adapted to engage the end 9a of the shaft 9 of the drum 10 when the slidable assembly is in its outermost position and the wheel 7 is adapted to mesh with a gear-wheel 12 secured to the drum 11 when the assembly is in its innermost position. A linkage arrangement 13, 14, 15, connected to the slidable assembly 7, 8 is arranged such that the link 15 moves into a position when the drum 11 is to be driven, to prevent the belt 4 from being used in conjunction with the higher speed set of pulleys (see Fig. 1, not shown). Alternatively a gearbox replaces the pulley and belt arrangement and incorporates a device to prevent the highest speed being selected when the drum 11 is to be driven.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR942813A FR1371390A (en) | 1963-07-26 | 1963-07-26 | Two-drum winch |
Publications (1)
Publication Number | Publication Date |
---|---|
ES301582A1 true ES301582A1 (en) | 1965-01-01 |
Family
ID=8809246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES0301582A Expired ES301582A1 (en) | 1963-07-26 | 1964-06-23 | Improvements in and relating to two-drum winches |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH410329A (en) |
ES (1) | ES301582A1 (en) |
FR (1) | FR1371390A (en) |
GB (1) | GB1006309A (en) |
-
1963
- 1963-07-26 FR FR942813A patent/FR1371390A/en not_active Expired
-
1964
- 1964-06-15 CH CH790764A patent/CH410329A/en unknown
- 1964-06-23 ES ES0301582A patent/ES301582A1/en not_active Expired
- 1964-07-07 GB GB2786864A patent/GB1006309A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1006309A (en) | 1965-09-29 |
CH410329A (en) | 1966-03-31 |
FR1371390A (en) | 1964-09-04 |
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