WO2017006459A1 - Dispositif de frein pour ascenseur - Google Patents

Dispositif de frein pour ascenseur Download PDF

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Publication number
WO2017006459A1
WO2017006459A1 PCT/JP2015/069630 JP2015069630W WO2017006459A1 WO 2017006459 A1 WO2017006459 A1 WO 2017006459A1 JP 2015069630 W JP2015069630 W JP 2015069630W WO 2017006459 A1 WO2017006459 A1 WO 2017006459A1
Authority
WO
WIPO (PCT)
Prior art keywords
brake shoe
guide member
brake
gap
elevator
Prior art date
Application number
PCT/JP2015/069630
Other languages
English (en)
Japanese (ja)
Inventor
勇輝 竹崎
Original Assignee
三菱電機株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2015/069630 priority Critical patent/WO2017006459A1/fr
Publication of WO2017006459A1 publication Critical patent/WO2017006459A1/fr

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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

Definitions

  • the present invention relates to an elevator brake device.
  • Patent Document 1 discloses a brake device including a support for supporting the brake shoe between the brake shoe and the guide member.
  • the stroke operation of the brake shoe moving forward and backward is guided by the support (elastic body) being deformed, and the stroke operation of the brake shoe can be made smoother.
  • the elastic body guides the stroke operation, the work to be performed on the guide member in order to ensure an optimal gap between the brake shoe and the guide member does not require the high workability as in the past.
  • a brake device provided with a shoe guide member capable of adjusting the contact condition with the shoe in order to guide the posture of the brake shoe (see Patent Document 2).
  • the gap between the brake shoe and the guide member is designed to be narrow, with the total value of the upper and lower gaps being about a few tenths of a millimeter. Because the impact noise between the brake shoe and the guide member increases, the clearance dimension is strictly controlled at the production site before shipment. However, after installation of the elevator, during brake operation, the gap size may change due to wear or rusting caused by contact between the brake shoe corner end portion and the torque receiving portion, and the brake operation may become unstable. Until now, since the gap dimensions could not be adjusted after shipment from the factory, there was no effective preventive measure for these problems after installation, such as replacing with a new brake shoe. It required extensive construction.
  • Patent Document 1 since the apparatus disclosed in Patent Document 1 is a support body that is rigid enough to support the brake torque, it is necessary to devise and remove the support body when replacing the brake shoes. Also, it is necessary to attach the brake shoe using a special jig or a special method. Furthermore, the support body is required to have high reliability in order to support the force and brake torque generated during the brake stroke operation by the elasticity of the support body.
  • the present invention has been made in view of the above, and an object of the present invention is to provide an elevator brake device capable of adjusting a clearance dimension at an installation site during maintenance.
  • an elevator brake device includes a brake shoe facing a rotating drum to be braked, a housing that supports torque of the rotating drum received by the brake shoe, A first guide member disposed between the brake shoe and the first end of the housing and supported by only one of the brake shoe and the first end; and the brake shoe and the first end The gap between the other of the first guide member and the first guide member can be adjusted.
  • an elevator brake device capable of adjusting the clearance dimension at the installation site during maintenance.
  • FIG. 1 It is a figure which shows the structure by which the guide member is attached to the upper and lower housings regarding the brake device of the elevator of Embodiment 1 of this invention.
  • FIG. 1 it is the figure which showed the state which inserted the gauge for clearance confirmation.
  • FIG. 1 shows the modified form of this Embodiment 1.
  • FIG. 1 shows the modified form of this Embodiment 1.
  • FIG. 1 shows the modified form of this Embodiment 1.
  • FIG. It is a figure which shows the modified form of this Embodiment 1.
  • FIG. It is a figure which shows the modified form of this Embodiment 1.
  • FIG. It is a figure which shows the modified form of this Embodiment 1.
  • FIG. It is a figure of the same aspect as FIG. 1 regarding Embodiment 2 of this invention. It is a figure of the same aspect as FIG.
  • Embodiment 2 of this invention It is a figure which shows the modified form of this Embodiment 2.
  • FIG. It is a figure which shows the modified form of this Embodiment 2.
  • FIG. It is a figure which shows the modified form of this Embodiment 2.
  • FIG. It is a figure which shows the modified form of this Embodiment 2.
  • FIG. 1 is a diagram illustrating a configuration in which guide members are attached to upper and lower housings in the elevator brake device according to the first embodiment of the present invention.
  • FIG. 2 is a view showing a state in which a gap confirmation gauge is inserted in FIG. 1.
  • a car and a counterweight are provided in the elevator hoistway so as to be able to move up and down. These cages and counterweights are suspended from a main rope driven by a hoisting machine.
  • the elevator braking device of the first embodiment is an example, but applies braking force to the rotating drum of the elevator hoist.
  • the elevator brake device 1 includes a brake shoe 3, a housing 5, a first guide member 7, and a second guide member 9.
  • the brake shoe 3 is opposed to the arc-shaped inner surface of the rotary drum 11 to be braked.
  • the rotating drum 11 is a part of an elevator hoist.
  • the brake shoe 3 that brakes the rotating drum 11 is supported by a bolt fixed to the armature 13 and receives the electromagnetic force of the electromagnetic magnet 17 attached to the field 15 and the restoring force of the spring 19 to perform a stroke operation.
  • the housing 5 supports the torque of the rotating drum 11 received by the brake shoe 3.
  • the first guide member 7 is disposed between the brake shoe 3 and the first end 21 of the housing 5, and is supported only on one of the brake shoe 3 and the first end 21. That is, in the first embodiment, the first guide member 7 is fixed to the first end portion 21 via the bolt 23.
  • the second guide member 9 is disposed between the brake shoe 3 and the second end 25 of the housing 5 and is supported only on one of the brake shoe 3 and the second end 25. That is, in the first embodiment, the second guide member 9 is fixed to the second end portion 25 via the bolt 23.
  • the first guide member 7 is disposed between the upper end 3 a of the brake shoe 3 and the first end portion 21, and the second guide member 9 is disposed between the lower end 3 b of the brake shoe 3 and the second end portion 25. Is arranged. That is, the pair of guide members 7 and 9 are fixed to the upper and lower ends of the housing.
  • the clearance between the brake shoe 3 and the other one of the first end 21 (the brake shoe 3 in the first embodiment) and the first guide member 7 is adjustable. Between the first end portion 21 and the first guide member 7, a first adjustment portion 27 relating to a gap between the brake shoe 3 and the first guide member 7 is provided.
  • the gap between the other of the brake shoe 3 and the second end portion 25 with respect to the above (the brake shoe 3 in the first embodiment) and the second guide member 9 can be adjusted.
  • a second adjustment portion 29 related to the gap between the brake shoe 3 and the second guide member 9 is provided.
  • the first adjustment unit 27 is a first gap adjustment gauge disposed between the first end 21 and the first guide member 7.
  • the second adjustment portion 29 is also a second gap adjustment gauge disposed between the second end portion 25 and the second guide member 9.
  • a plurality of gap adjustment gauges can be used for each of the first gap adjustment gauge and the second gap adjustment gauge.
  • a plurality of gap adjusting gauges having thicknesses of 0.10 mm, 0.12 mm, and 0.15 mm are prepared.
  • the thicknesses of the entire first gap adjustment gauge and the entire second gap adjustment gauge can be adjusted in units of hundreds of millimeters.
  • there is no interference between the other equipment and the tool for example, by forming a groove 5a in the housing as shown in FIG. 3 so that the bolt can be tightened with a tool from the front side of the page.
  • the brake shoe 3 moves while being guided by the first guide member 7 and the second guide member 9. Further, during braking, the torque of the rotating drum 11 received by the brake shoe 3 is supported by the first guide member 7, the second guide member 9 and the housing 5.
  • ⁇ Assembly of the adjustment part and clearance adjustment are performed as follows. First, the guide member and the gap adjusting gauge are bolted with a gauge thickness that can secure a sufficient gap so that the brake shoe can be inserted. Next, install the brake shoes. Next, as shown in FIG. 2, the gap check gauges 31 are prepared to be thick and thin, and the number and type of the gap check gauges 31 are adjusted so that the thick gauges cannot be inserted and the thin gauges can be inserted. As for the thickness of the gap confirmation gauge 31, a gauge having an upper limit and a lower limit thickness of the gap dimension to be adjusted may be prepared. Since the gap dimension can be adjusted by such simple means, it is possible to suppress variations in the dimension after adjustment by the operator's technique.
  • the adjustment mechanism described above makes it possible to adjust the gap dimension in units of several hundredths of a millimeter, so that the mechanical dimension tolerance between the sliding surfaces of the brake shoe and the guide member can be relaxed. Furthermore, the workability of shoe replacement can be improved by changing the gap dimension.
  • the guide member may be provided only on one of the upper and lower sides of the housing.
  • FIG. 3 is an example in which the guide member is provided only above the brake shoe.
  • the housing may include a guide member posture support mechanism 33.
  • the guide member posture support mechanism 33 can include a guide member posture fixing bolt that penetrates the housing.
  • the guide member is supported by a bolt 23 in the vertical direction, and is also supported by a guide member posture fixing bolt from a direction substantially perpendicular to the vertical direction.
  • the guide member may be fixed to the upper and lower brake shoes.
  • the guide member may be provided only in the one side of the upper and lower sides of a housing.
  • the brake shoe may include a guide member posture support mechanism 33.
  • FIG. 8 is a diagram illustrating a configuration in which guide members are attached to upper and lower housings in the elevator brake device according to the second embodiment of the present invention.
  • a first guide member 107 supported only on one of the brake shoe 3 and the first end 21 is disposed between the brake shoe 3 and the first end 21 of the housing 5.
  • a second guide member 109 supported by only one of the brake shoe 3 and the second end portion 25 is disposed between the brake shoe 3 and the second end portion 25 of the housing 5.
  • a first adjustment portion 127 related to a gap between the other of the brake shoe and the first end portion and the first guide member 107 is provided. Is provided.
  • a second adjustment portion related to a gap between the other of the brake shoe and the second end portion and the second guide member 109 is provided between one of the brake shoe and the second end portion and the second guide member 109. 129 is provided.
  • the first adjusting unit 127 and the second adjusting unit 129 each include a special bolt 135 and a lock nut 137.
  • the special bolt 135 has a function of supporting the torque that the brake shoe receives from the rotating drum. It is assumed that the special bolt 135 advances and retreats in the axial direction, for example, by turning with a hexagon wrench.
  • ⁇ Assembly of the adjustment part and clearance adjustment are performed as follows. First, the amount of protrusion of the special bolt from one of the brake shoe and the housing (the amount of protrusion from the one) is adjusted so as to secure a clearance that allows the brake shoe to be inserted. Next, install the brake shoes. As mentioned above, prepare thick and thin gauges, and tighten the lock bolts of special bolts where thin gauges can be pulled out. The thin gauge is pulled out, it is confirmed that the thick gauge cannot be inserted, and the adjustment of the gap dimension is completed (see FIG. 9).
  • the same advantages as in the first embodiment described above can be obtained.
  • the guide member may be provided only on one of the upper and lower sides of the housing.
  • FIG. 3 is an example in which the guide member is provided only above the brake shoe.
  • the guide member may be fixed to the upper and lower brake shoes.
  • the guide member may be provided only in the one side of the upper and lower sides of a housing.
  • the invention of the present application includes combinations of some or all of the configurations of any one or more of the embodiments described above with other embodiments. Further, the invention of the present application also includes a mode in which the features appearing in each figure of the present application are implemented in combination with the modes of other figures. For example, the feature of FIG. 5 and the aspect of FIG. 1 may be combined, and in FIG. 5, guide member posture support mechanisms may be provided both above and below the brake shoe.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Braking Arrangements (AREA)

Abstract

L'invention concerne un dispositif de frein (1) pour un ascenseur, lequel dispositif comporte : un sabot de frein (3) monté de façon à faire face à un tambour rotatif (11) qui est un objet à freiner ; un boîtier (5) pour soutenir le couple du tambour rotatif (11) qui est appliqué au sabot de frein (3) ; et un premier élément de guidage (7) disposé entre le sabot de frein (3) et une première section d'extrémité (21) du boîtier (5) et soutenu uniquement par l'un du sabot de frein (3) et de la première section d'extrémité (21). L'espace entre le premier élément de guidage (7) et l'autre du sabot de frein (3) et de la première section d'extrémité (21) est ajustable.
PCT/JP2015/069630 2015-07-08 2015-07-08 Dispositif de frein pour ascenseur WO2017006459A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/069630 WO2017006459A1 (fr) 2015-07-08 2015-07-08 Dispositif de frein pour ascenseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/069630 WO2017006459A1 (fr) 2015-07-08 2015-07-08 Dispositif de frein pour ascenseur

Publications (1)

Publication Number Publication Date
WO2017006459A1 true WO2017006459A1 (fr) 2017-01-12

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ID=57685192

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/069630 WO2017006459A1 (fr) 2015-07-08 2015-07-08 Dispositif de frein pour ascenseur

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WO (1) WO2017006459A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020255328A1 (fr) * 2019-06-20 2020-12-24 株式会社日立製作所 Treuil d'ascenseur

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008087735A1 (fr) * 2007-01-19 2008-07-24 Mitsubishi Electric Corporation Dispositif de frein pour élévateur
US20130306414A1 (en) * 2011-02-15 2013-11-21 Kone Corporation Fixing interface for a machinery brake, and a machinery brake

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008087735A1 (fr) * 2007-01-19 2008-07-24 Mitsubishi Electric Corporation Dispositif de frein pour élévateur
US20130306414A1 (en) * 2011-02-15 2013-11-21 Kone Corporation Fixing interface for a machinery brake, and a machinery brake

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020255328A1 (fr) * 2019-06-20 2020-12-24 株式会社日立製作所 Treuil d'ascenseur

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