WO2004076328A1 - Hoist for elevator - Google Patents
Hoist for elevator Download PDFInfo
- Publication number
- WO2004076328A1 WO2004076328A1 PCT/JP2003/002243 JP0302243W WO2004076328A1 WO 2004076328 A1 WO2004076328 A1 WO 2004076328A1 JP 0302243 W JP0302243 W JP 0302243W WO 2004076328 A1 WO2004076328 A1 WO 2004076328A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- magnet
- sheave
- braking surface
- elevator
- braking
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/08—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
- B66B11/0438—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with a gearless driving, e.g. integrated sheave, drum or winch in the stator or rotor of the cage motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
Definitions
- the present invention relates to a thin-type elevator hoisting machine, and more particularly to an elevator hoisting hoist having a built-in inflatable brake.
- a sheave and a brake drum are integrally provided on the outer peripheral surface of a substantially arm-shaped bowl-shaped body in order to enable installation in a narrow space, and a cylindrical brake drum is provided. It has been proposed that a motor be formed around the vehicle and a brake be arranged inside the brake drum to reduce the thickness.
- an annular braking surface is formed on the inner peripheral surface of the brake drum.
- a pair of brake shoes having a friction member disposed at the distal end are operated so as to expand in a radial direction, and a structure called a so-called inward expansion type brake is used to press the friction member against the braking surface.
- the present invention has been made to solve the above-mentioned problems, and can keep a braking surface of a brake drum clean for a long period of time. ⁇ It is an object of the present invention to obtain a hoisting machine for an elevator that can easily discharge powder. Disclosure of the invention
- An elevator for hoisting an elevator according to the present invention is provided with a sheave on which a main rope is wound, an electric motor provided to be connected to the sheave, and rotating the sheave, and also provided to be connected to the sheave. It has a cylindrical brake drum having an annular braking surface formed on the inner peripheral surface, and a brake provided inside the brake drum and braking the sheave by pressing a friction member against the braking surface. are doing. Then, the first magnet is disposed so as to face the braking surface. The first magnet is provided detachably with respect to the hoist.
- FIG. 1 is a front view of a hoisting machine for an elevator of the present invention viewed from a back plate side.
- FIG. 2 is a cross-sectional view taken along line II-II of the hoisting machine for the elevator shown in FIG.
- FIG. 3 is a cross-sectional view of the elevator for the elevator of FIG. 1 taken along the line III-II.
- FIG. 4 is an explanatory diagram showing the shape of the first magnet.
- FIG. 5 is an explanatory diagram showing the shape of the second magnet. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a front view of a hoisting machine for an elevator of the present invention viewed from a back plate side.
- FIG. 2 is a cross-sectional view of the hoisting machine for the elevator shown in FIG. 1 taken along the line II-II.
- FIG. 3 is a cross-sectional view taken along the line II I-III of the hoisting machine for the evening shown in FIG. In Figures 1 to 3
- the hoisting machine 100 has a housing 1 having a bowl shape and having an opening 1a on one side.
- the housing 1 has a center hole 1c formed at the center of the bottom 1b, and a cylindrical portion 1d formed at the opening la side.
- Opening 1 a of housing 1 is a flat back plate
- the housing 1, the back plate 2, and the lid 4 configured as described above constitute a casing that forms a space enclosed therein, and the upper side of FIG. It is installed on the fixed part.
- a fixed shaft 5 is provided across the space in which the brakes 13 and 13 are provided.
- the fixed shaft 5 is inserted from the outside into the center hole 1c drilled in the bottom 1b on the housing 1 side, and is mounted.
- the flange formed at the rear end is surrounded by the bolt 6 around the center hole 1c.
- the back end is fixed to the housing 1, and the other end is abutted against the inner surface of the back plate 2, and is fastened to the back plate 2 by a bolt 7 penetrating the back plate 2.
- a stator 8 is provided over the entire circumference.
- a generally arm-shaped bowl-shaped body 9 is housed in a closed space formed by the housing 1 and the back plate 2.
- the bowl-shaped body 9 is made of an iron-based material such as animal or steel, and is disposed so that the bottom surface 9 a is parallel to the bottom 1 b of the housing 1, and the center is pivoted to the fixed shaft 5 by pairing 10. And rotate with respect to the housing 1 and the back plate 2.
- the bowl-shaped body 9 is composed of a first cylindrical portion formed on the bottom surface 9a side and a second cylindrical portion formed on the opening edge side and having a diameter larger than the outer diameter of the first cylindrical portion. It has a shape with steps.
- a sheave 9b is formed on the outer peripheral surface of the small-diameter first cylindrical portion on the bottom surface 9a side.
- the sheave 9b is formed with four grooves so that the main rope 10 can be wound therearound.
- the main rope 10 has a car and a counterweight connected to both ends.
- the large-diameter second cylindrical portion constitutes the brake drum 9c.
- An annular braking surface 9 d is formed on the inner peripheral surface of the brake drum 9 c.
- a permanent magnet 11 is fixed over the entire circumference.
- the permanent magnet 1 1 is arranged to face the stator 8,
- the electric motor 12 is formed in cooperation with the stator 8.
- a brake 13 composed of an electromagnetic brake is fixedly mounted on the back plate 2 inside the bowl-shaped body 9.
- the brake 13 is provided with an electromagnetic magnet 14 disposed in the center, a stator core 15 disposed outside the electromagnetic magnet 14 and attracted to the electromagnetic magnet 14, and a radial direction from the stator core 15.
- a brake member 16 erected outside, a friction member 17 attached to the outer surface of the brake shoe 16 and facing the braking surface 9 d of the brake drum 9 c, an electromagnetic magnet 14
- the coil spring 18 is contracted between the stator core 15 and urges the contact surface 17a of the friction member 17 to press the braking surface 9d.
- a pair of the electromagnetic magnet 14, the stator core 15, the prekis 16, the friction member 17, and the coil spring 18 are provided symmetrically on both sides of the fixed shaft 5.
- a substantially rod-shaped magnet 20 as a first magnet is provided upright from the back plate 2.
- the magnet 20 is composed of a small-diameter cylindrical magnet body 20a and a hexagon socket head bolt-shaped base 20b for fixing the magnet body 20a to the tip, and the magnet body 20a is a brake drum 9 Female screw which is arranged to face the braking surface 9 d of c and is inserted from the outside into the stepped mounting hole 2 b drilled in the back plate 2 and threaded into the small diameter hole of the stepped mounting hole 2 b It is screwed into the part and fixed.
- Figure 4 shows the shape of the magnet 20.
- the magnet main body 20a is made of, for example, a permanent magnet that is a ferrite-based material. Since the magnet body 20a has a smaller diameter than the female screw portion of the stepped mounting hole 2b, the magnet 20 can be pulled out from the mounting hole 2b for maintenance and inspection.
- the roughly rod-shaped magnet 20 is provided upright inside the lower part of the annular braking surface 9 d with a small gap left between the braking surface 9 d and the braking surface 9 d.
- the magnet 20 is provided circumferentially adjacent to a position where the braking surface 9 d and the friction member 17 are in contact with each other, and the friction powder or mackerel powder generated on the braking surface 9 d is provided. Is immediately absorbed.
- a magnet plate 21 having a substantially semicircular flat plate shape as a second magnet is adhered on the surface facing the space formed by the back plate 1 and the back plate 2.
- Figure 5 shows the shape of the magnet plate 21.
- the magnet plate 21 is made of, for example, a permanent magnet that is a ferrite-based material. Soshi '
- the magnet plate 21 has a size that covers the entire half-moon window 2a.
- the magnet plate 21 extends so that a plane including surfaces of the friction member 17 and the braking surface 9 d that contact each other includes a portion where the back plate 2 intersects and a peripheral portion thereof.
- the magnet plate 21 adsorbs friction powder or powder having a small particle diameter and scattering in a space inside the winder which is powdery and sealed.
- the magnet plate 21 can be removed at the same time by removing the cover 4. ⁇
- the attractive force of the electromagnetic magnet 14 overcomes the restoring force of the coil spring 18 to attract the movable core 15, and the friction member 17 and the braking surface 9 of the brake drum 9 c A predetermined gap is formed between d and d, and no braking force is generated.
- the attractive force of the electromagnetic magnet 14 is lost, and the friction member 17 is pressed against the braking surface 9 d by the restoring force of the coil spring 18. As a result, braking force is generated and the sheave 9b stops.
- the hoisting machine 100 is installed at a predetermined position of the hoistway, and the main rope 10 is wound around the sheave 9b. Then, the sheave 9 b is rotated by the electric motor 12 comprising the stator 8 and the permanent magnet 11, and the main rope 10 is driven, and although not shown, the car and the counterweight move in opposite directions. Go up and down.
- the hoisting machine 100 for the elevator of the present embodiment has a sheave 9b around which the main rope 10 of the elevator is wound, and a sheave provided in connection with the sheave 9b.
- An electric motor 12 for rotating the car 9b a cylindrical brake drum 9c connected to the sheave 9b and having an annular braking surface 9d formed on the inner peripheral surface, and a brake drum 9 provided inside c
- a brake 1 that brakes the sheave 9 b by pressing a friction member 17 against the braking surface 9 d
- the brake drum 9 c that is detachably provided so as to face the braking surface 9 d, so that friction powder generated on the braking surface 9 d of the brake drum 9 c Is attracted to the first magnet 20 as soon as it occurs. Therefore, the brake drum
- the braking surface 9d of 9c is kept clean for a long period of time, improving the reliability of the operation of the brake 13 and reducing the frequency of removing friction powder and powder during maintenance and inspection.
- the first magnet 20 is detachably provided, it is easy to remove friction powder and powder during maintenance and inspection, thereby shortening the operation time.
- a second magnet 21 provided detachably is provided in the vicinity of the side of the contact surface 1 ⁇ a of the friction member 17 pressed against the braking surface 9d, so that the closed space is provided. Powder-like abrasion powder and mackerel powder scattered in the inside are adsorbed by the second magnet 21, and the braking surface 9 d is kept more clean.
- the second magnet 21 is also provided detachably, it is easy to remove the friction powder and powder during maintenance and inspection, and the work time is shortened. Industrial potential
- the present invention is most suitable for an elevator installed in a small space, and particularly for an elevator installed in a position where the maintenance of the winding machine is difficult.
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004564061A JPWO2004076328A1 (en) | 2003-02-27 | 2003-02-27 | Elevator hoisting machine |
PCT/JP2003/002243 WO2004076328A1 (en) | 2003-02-27 | 2003-02-27 | Hoist for elevator |
CNA038054965A CN1688503A (en) | 2003-02-27 | 2003-02-27 | Hoist for elevator |
KR10-2004-7017257A KR20040101561A (en) | 2003-02-27 | 2003-02-27 | Hoist for elevator |
EP03816062A EP1598302A1 (en) | 2003-02-27 | 2003-02-27 | Hoist for elevator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2003/002243 WO2004076328A1 (en) | 2003-02-27 | 2003-02-27 | Hoist for elevator |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004076328A1 true WO2004076328A1 (en) | 2004-09-10 |
Family
ID=32923101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/002243 WO2004076328A1 (en) | 2003-02-27 | 2003-02-27 | Hoist for elevator |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1598302A1 (en) |
JP (1) | JPWO2004076328A1 (en) |
KR (1) | KR20040101561A (en) |
CN (1) | CN1688503A (en) |
WO (1) | WO2004076328A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009034642A1 (en) * | 2007-09-14 | 2009-03-19 | Mitsubishi Electric Corporation | Elevator hoist |
JP2011030307A (en) * | 2009-07-22 | 2011-02-10 | Toyota Motor Corp | Rotary electric machine |
JP2020532257A (en) * | 2017-08-18 | 2020-11-05 | エス・エム・エス・グループ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング | Direct drive of rolls, rollers and winches in the steel / non-ferrous industry |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI123238B (en) * | 2011-02-02 | 2012-12-31 | Kone Corp | Method and arrangement for renewing the braking force of a hoisting machine brake |
CN108298398B (en) | 2017-01-13 | 2020-09-01 | 奥的斯电梯公司 | Core ring assembly for elevator governor, governor and elevator system |
DE102018220864A1 (en) * | 2018-12-03 | 2020-06-04 | Psa Automobiles Sa | Drum brake of a motor vehicle and motor vehicle |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0610074B2 (en) * | 1985-10-22 | 1994-02-09 | 株式会社日本省力産業研究所 | Electric hoist |
JPH11311272A (en) * | 1998-04-30 | 1999-11-09 | Hitachi Chem Co Ltd | Disc brake pad |
JP2000289954A (en) * | 1999-04-05 | 2000-10-17 | Mitsubishi Electric Corp | Winding machine for elevator |
JP2002310189A (en) * | 2001-04-12 | 2002-10-23 | Toyota Motor Corp | Surface contact structure and power transmission |
-
2003
- 2003-02-27 WO PCT/JP2003/002243 patent/WO2004076328A1/en not_active Application Discontinuation
- 2003-02-27 JP JP2004564061A patent/JPWO2004076328A1/en active Pending
- 2003-02-27 EP EP03816062A patent/EP1598302A1/en not_active Withdrawn
- 2003-02-27 KR KR10-2004-7017257A patent/KR20040101561A/en not_active Application Discontinuation
- 2003-02-27 CN CNA038054965A patent/CN1688503A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0610074B2 (en) * | 1985-10-22 | 1994-02-09 | 株式会社日本省力産業研究所 | Electric hoist |
JPH11311272A (en) * | 1998-04-30 | 1999-11-09 | Hitachi Chem Co Ltd | Disc brake pad |
JP2000289954A (en) * | 1999-04-05 | 2000-10-17 | Mitsubishi Electric Corp | Winding machine for elevator |
JP2002310189A (en) * | 2001-04-12 | 2002-10-23 | Toyota Motor Corp | Surface contact structure and power transmission |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009034642A1 (en) * | 2007-09-14 | 2009-03-19 | Mitsubishi Electric Corporation | Elevator hoist |
KR101179773B1 (en) * | 2007-09-14 | 2012-09-04 | 미쓰비시덴키 가부시키가이샤 | Elevator hoist |
JP5289318B2 (en) * | 2007-09-14 | 2013-09-11 | 三菱電機株式会社 | Elevator hoisting machine |
JP2011030307A (en) * | 2009-07-22 | 2011-02-10 | Toyota Motor Corp | Rotary electric machine |
JP2020532257A (en) * | 2017-08-18 | 2020-11-05 | エス・エム・エス・グループ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング | Direct drive of rolls, rollers and winches in the steel / non-ferrous industry |
Also Published As
Publication number | Publication date |
---|---|
KR20040101561A (en) | 2004-12-02 |
EP1598302A1 (en) | 2005-11-23 |
JPWO2004076328A1 (en) | 2006-06-01 |
CN1688503A (en) | 2005-10-26 |
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