WO2019244285A1 - Structure de support pour appareil de levage - Google Patents

Structure de support pour appareil de levage Download PDF

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Publication number
WO2019244285A1
WO2019244285A1 PCT/JP2018/023501 JP2018023501W WO2019244285A1 WO 2019244285 A1 WO2019244285 A1 WO 2019244285A1 JP 2018023501 W JP2018023501 W JP 2018023501W WO 2019244285 A1 WO2019244285 A1 WO 2019244285A1
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WO
WIPO (PCT)
Prior art keywords
bearing
support member
rotating shaft
peripheral portion
bearing support
Prior art date
Application number
PCT/JP2018/023501
Other languages
English (en)
Japanese (ja)
Inventor
脩平 新倉
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 JP2020525156A priority Critical patent/JP6949221B2/ja
Priority to CN201880094606.2A priority patent/CN112272647B/zh
Priority to PCT/JP2018/023501 priority patent/WO2019244285A1/fr
Publication of WO2019244285A1 publication Critical patent/WO2019244285A1/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/74—Sealings of sliding-contact bearings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings

Definitions

  • the present invention relates to a hoist used for an elevator, and more particularly to a support structure for a hoist that prevents damage to bearings.
  • One of the causes of mechanical loss of the bearings of the hoist is an increase in the temperature of the hoist.
  • frictional heat is generated in the bearing due to rotation of the rotating shaft.
  • the rotating shaft undergoes thermal expansion by increasing the temperature of the bearing.
  • the clearance between the inner and outer races of the bearing and the rolling elements changes, causing an excessive load on the bearing and possibly damaging the bearing.
  • Patent Document 1 As a method of solving the problem caused by the rise in the temperature of the bearing, for example, there is a configuration of Patent Document 1.
  • a rotating shaft and a rotor are cooled using a refrigerant in order to prevent damage to a bearing due to a rise in temperature of a hoist.
  • a rotor whose end of a rotating shaft is supported by a bearing, and a refrigerant chamber are provided, and the axial direction of the rotor and the inner peripheral side of the rotor core are provided. And a hole is provided.
  • a shaft hole is provided in the radial direction of the rotating shaft to communicate these holes.
  • the rotor is cooled with the refrigerant by the structure that cools the bearing and the rotor with the refrigerant so that the clearance between the inner ring and the outer ring of the bearing and the rolling element does not become zero. .
  • the reduction of the bearing gap due to thermal expansion is suppressed, and damage to the bearing is prevented.
  • the present invention has been made in order to solve the above-described problems, and suppresses an increase in a load on a bearing caused by thermal expansion of a rotating shaft of a hoist, thereby extending the life of the bearing and preventing damage. It is an object of the present invention to obtain a hoisting machine supporting structure with improved reliability.
  • a support structure of a hoist includes a bearing that supports a rotating shaft, and a bearing support member that stores the bearing, and an inner peripheral portion of the bearing support member has a bearing. By partially contacting the outer peripheral portion, a gap exists between the inner peripheral portion of the bearing support member and the outer peripheral portion of the bearing.
  • a structure is provided in which the bearing slides more easily than in the past when thermal expansion occurs in the rotating shaft.
  • FIG. 1 is a schematic diagram of a bearing support structure according to a first embodiment of the present invention. It is a schematic diagram of a bearing support structure according to Embodiment 2 of the present invention. It is a schematic diagram of a bearing support structure according to Embodiment 3 of the present invention. It is a schematic diagram of a bearing support structure according to Embodiment 4 of the present invention.
  • Embodiment 5 of the present invention It is a schematic diagram of a bearing support structure according to Embodiment 6 of the present invention. It is a schematic diagram of a bearing support structure according to Embodiment 7 of the present invention. It is a schematic diagram of a bearing support structure according to Embodiment 8 of the present invention. It is a schematic diagram of the support structure of the bearing by the modification of FIG. It is a schematic diagram of the support structure of the bearing according to Embodiment 9 of the present invention.
  • FIG. 1 is a schematic diagram of a support structure of a hoisting machine 100 according to Embodiment 1 of the present invention.
  • the hoist 100 includes a motor 1, a bearing 5, bearing support members 6 and 7, and a sheave 8.
  • the hoist 100 is fixed to the support base 9.
  • the motor 1 includes a rotor 2, a stator 3, and a rotating shaft 4.
  • the rotor 2 of the motor 1 is fixed to one end 4 a of the rotating shaft 4.
  • a sheave 8 is fixed to the other end 4 b of the rotating shaft 4.
  • the rotating shaft 4 is rotatably supported by two bearings 5.
  • the bearing 5 on the motor 1 side is held by a bearing support member 6, and the bearing 5 on the other end 4 b of the rotating shaft 4 is held by a bearing support member 7.
  • a main rope (not shown) is wound around the sheave 8.
  • the main rope is lowered down using a pulley (not shown).
  • a car and a counterweight (not shown) are connected to both ends of the main rope. By driving the motor 1 to rotate the sheave 8, the car and the counterweight move up and down through the main rope wound around the sheave 8.
  • FIG. 2 is a detailed schematic diagram of the bearing 5 showing a steady state.
  • the bearing 5 is a rolling bearing including an inner ring 5a, a rolling element 5b, an outer ring 5c, and a retainer (not shown).
  • a plurality of rolling elements 5b are arranged between the inner ring 5a and the outer ring 5c.
  • the plurality of rolling elements 5b are held by a holder at regular intervals.
  • the bearing 5 is usually provided with a predetermined gap 5 d in the radial direction and the axial direction of the rotating shaft 4.
  • the inner ring 5a is fitted on the rotating shaft 4.
  • the outer ring 5c is fitted to the bearing support member 6 or the bearing support member 7 shown in FIG.
  • the inner ring 5a and the outer ring 5c constitute a race of the bearing 5.
  • FIG. 3 is a detailed schematic diagram of the bearing 5 showing a state in which the inner ring 5a has moved due to thermal expansion of the rotating shaft 4.
  • the inner race 5 a is usually firmly fixed to the rotating shaft 4 by shrink fitting or the like, so that the inner race 5 a fixed to the rotating shaft 4 is fixed to the rotating shaft 4. And move in the axial direction. Therefore, when the amount of thermal expansion of the bearing 5 becomes larger than the axial gap 5d and the inner ring 5a moves in the axial direction, a force due to thermal expansion is generated in the axial direction.
  • FIG. 4 is a schematic diagram of a bearing support structure according to Embodiment 1 of the present invention.
  • FIG. 4 shows the relationship between the bearing 5 and the bearing support member 6, but the relationship between the bearing 5 and the bearing support member 7 is the same.
  • the support structure of the hoisting machine according to the first embodiment includes a bearing 5, a bearing support member 6, and a gap 6 b formed by contact between the bearing 5 and the inner diameter surface 6 a of the inner peripheral portion of the bearing support member 6.
  • the inner diameter surface 6a of the bearing support member 6 partially contacts the outer ring 5c of the bearing 5, a gap 6b exists between the inner diameter surface 6a of the bearing support member 6 and the outer ring 5c of the bearing 5.
  • the inner diameter surface 6a of the bearing support member 6 into which the outer ring 5c of the outer peripheral portion of the bearing 5 is fitted is provided so as to make the bearing 5 and the bearing support member linearly contact at one place and to be inclined in the axial direction of the bearing 5.
  • the gap 6b formed by the bearing support member 6 and the bearing 5 is formed so as to gradually increase in the direction in which the rotating shaft 4 thermally expands. Further, the gap 6b is formed so as to gradually increase in the radial direction of the rotation shaft.
  • the entire bearing 5 can easily slide in the axial direction. Accordingly, even when the rotating shaft 4 thermally expands due to heat generated by the bearing 5, the entire bearing 5 can easily move in the axial direction. Therefore, when the inner race 5a moves in the axial direction together with the rotary shaft 4, the outer race 5c also easily moves in the same direction as the inner race 5a. As a result, a change in the gap 5d between the inner ring 5a and the outer ring 5c and the rolling element 5b can be suppressed, and an increase in the axial load of the bearing 5 can be suppressed.
  • the gap 6b between the bearing 5 and the bearing support member 6 is gradually increased in the radial direction. Therefore, even when the bearing 5 thermally expands in the radial direction, the entire bearing 5 slides in the axial direction, so that only the inner ring 5a does not move in the axial direction together with the rotating shaft 4. As a result, a change in the gap 5d between each of the inner ring 5a and the outer ring 5c of the bearing 5 in the radial direction and the rolling element 5b can be suppressed, and an increase in the radial load of the bearing 5 can be suppressed.
  • a configuration is provided in which the shape of the bearing support member and the groove are changed so that the position of the bearing easily slides with the thermal expansion of the rotating shaft.
  • the conventional method of preventing heat generation by cooling has a problem that the configuration of the equipment is complicated.
  • a simple configuration is provided in which only the shape of the bearing support member and the machine groove are changed to take measures against thermal expansion. As a result, a special cooling mechanism becomes unnecessary, maintenance becomes easy, maintenance costs can be reduced, and highly reliable equipment can be obtained at low cost.
  • FIG. 5 is a schematic diagram of a bearing support structure according to Embodiment 2 of the present invention. 5, the same reference numerals as those of the first embodiment shown in FIG. 4 denote the same or similar components, and a detailed description thereof will be omitted.
  • a plurality of projections 12c are provided in the axial direction on the inner diameter surface 12a of the bearing support member 12 to which the bearing 5 is fitted, to bring the bearing 5 and the bearing support member 12 into linear contact. That is, the inner diameter surface 12a of the bearing support member 12 makes line contact with the bearing 5 at a plurality of locations, so that the gap 12b is formed at a plurality of locations.
  • Embodiment 1 of FIG. 4 when the bearing 5 and the bearing support member 6 are in linear contact at one point, when the rotary shaft 4 thermally expands, the bearing 5 is more axially moved than the conventional structure. Easy to slide. However, when the radial load applied to the bearing 5 is large, the bearing support member 6 cannot support the bearing 5 by only one line contact, and the bearing 5 may be damaged.
  • a plurality of protrusions 12 c are formed on the inner diameter surface 12 a of the bearing support member 12 in the axial direction of the rotating shaft 4.
  • the plurality of projections 12c come into contact with the outer diameter surface of the bearing 5, gaps exist between the plurality of projections 12c.
  • FIG. 6 is a schematic diagram of a bearing support structure according to Embodiment 3 of the present invention. 6, the same reference numerals as those in the first embodiment shown in FIG. 4 denote the same or similar components, and a detailed description thereof will be omitted.
  • a curved surface is provided on the inner diameter surface 13a of the bearing support member 13 to which the bearing 5 is fitted. That is, a plurality of gaps 13 b are provided by the contact between the inner diameter surface 13 a of the bearing support member 13 and the bearing 5.
  • the bearing 5 can be brought into surface contact with the bearing support member 13 by forming the inner diameter surface 13a of the bearing support member 13 into a curved shape. As a result, even if a larger radial load is applied to the bearing 5, the bearing 5 can be supported by the bearing support member 13, and damage to the bearing 5 can be suppressed.
  • FIG. 7 is a schematic diagram of a bearing support structure according to Embodiment 4 of the present invention. 7, the same reference numerals as those in the first embodiment shown in FIG. 4 denote the same or similar components, and a detailed description thereof will be omitted.
  • a plurality of curved projections 14c are provided on the inner diameter surface 14a of the bearing support member 14 to which the bearing 5 is fitted. That is, the gaps 14 b are provided at a plurality of places by the surface contact between the plurality of protrusions 14 c of the bearing support member 14 and the bearing 5.
  • a plurality of protrusions 14 c are formed on the inner diameter surface 14 a of the bearing support member 14 in the axial direction of the rotating shaft 4.
  • the bearing 5 and the bearing support member 14 can be brought into surface contact at a plurality of locations.
  • the bearing 5 can be supported at a plurality of locations by the bearing support member 14, and damage to the bearing can be suppressed.
  • FIG. Embodiments 1 to 4 have described the configuration in which only the shape of the bearing support member is changed so that the entire bearing easily slides in the axial direction.
  • a structure for changing the shape of the bearing will be described with reference to FIG.
  • FIG. 8 is a schematic view of a bearing support structure according to Embodiment 5 of the present invention. 8, the same reference numerals as those in the first embodiment shown in FIG. 4 denote the same or similar components, and a detailed description thereof will be omitted.
  • the shape of the bearing support member 6 can be changed in accordance with the magnitude of the radial load applied to the bearing 15.
  • the shape of the bearing support member 6 becomes more complicated. That is, in order to cope with a larger radial load applied to the bearing 5 only by the shape of the bearing support member 6, the processing cost and the processing time increase because the shape of the bearing support member 6 is complicated.
  • a configuration is provided in which the shape of the outer diameter surface 15a of the bearing 15 is changed at the same inclination as the shape change of the bearing support member 6.
  • FIG. 9 is a schematic diagram of a bearing support structure according to Embodiment 6 of the present invention. 9, the same reference numerals as those in the first embodiment shown in FIG. 4 denote the same or similar components, and a detailed description thereof will be omitted.
  • the bearing 45 has a configuration including the bearing fixing member 16 and the bearing main body 35 provided inside the bearing fixing member 16. Therefore, the outer peripheral portion of the bearing fixing member 16 constitutes the outer peripheral portion of the bearing 45.
  • the bearing fixing member 16 newly added in the sixth embodiment is arranged between the bearing support member 17 and the bearing main body 35.
  • the bearing body 35 is held by the bearing fixing member 16.
  • the bearing 45 is held by the bearing support member 17. That is, the bearing fixing member 16 as a collar or a ring is fitted to the outer ring of the bearing body 35.
  • the inner diameter surface 17a of the bearing support member 17 is provided so as to be inclined in the axial direction, similarly to FIG.
  • the outer diameter surface 16 a of the bearing fixing member 16 is provided in a shape that changes at the same inclination as the shape of the bearing support member 17.
  • a flat portion 16b and a flat portion 17b are provided in a part where the outer diameter surface 16a of the bearing fixing member 16 and the inner diameter surface 17a of the bearing support member 17 face each other.
  • the flat portion 16b corresponds to a bearing parallel surface.
  • the flat portion 17b corresponds to a plane parallel to the support member.
  • the bearing parallel surface and the support member parallel surface are provided so as to be in contact with each other.
  • the distance from the axis of the rotating shaft 4 to the plane parallel to the bearing and the distance from the axis of the rotating shaft 4 to the plane parallel to the support member are provided to be constant in the axial direction of the rotating shaft.
  • the bearing fixing member 16 is disposed between the bearing 5 and the bearing support member 17 is used.
  • the outer diameter surface 16a of the bearing fixing member 16 is formed in a shape in which the bearing 5 can easily slide. This makes it possible to realize a mechanism in which the inexpensive and non-custom-made bearing 5 can easily slide without changing the shape of the outer ring of the bearing 5.
  • the bearing 5 can be supported by the respective flat portions 16b, 17b. .
  • FIG. 10 is a schematic diagram of a bearing support structure according to Embodiment 7 of the present invention. 10, the same reference numerals as those in the first embodiment shown in FIG. 4 denote the same or similar components, and a detailed description thereof will be omitted.
  • the bearing 46 has a configuration including the bearing fixing member 18 and the bearing main body 36 provided inside the bearing fixing member 18. Therefore, the outer peripheral portion of the bearing fixing member 18 constitutes the outer peripheral portion of the bearing 46.
  • the bearing fixing member 18 is fitted to the outer ring of the bearing body 36.
  • the outer diameter surface 18a of the bearing fixing member 18 has a stepped shape.
  • the inner diameter surface 19 a of the bearing support member 19 is provided with a shape that changes stepwise in the same manner as the shape of the outer diameter surface 18 a of the bearing fixing member 18.
  • the temperature of the bearing 5 and the rotating shaft 4 fluctuates up and down depending on the operation status of the elevator. Therefore, in the case of a mechanism in which the bearing 5 slides easily, the bearing 5 returns to its original position due to the temperature decrease of the bearing 5 and the rotating shaft 4 after the bearing 5 slides due to the temperature rise of the bearing 5 and the rotating shaft 4. Try to. That is, a force acts on the bearing 5 to return to the home position.
  • the inner diameter surface 19a of the bearing support member 19 and the outer diameter surface 18a of the bearing fixing member 18 are stepped so that the bearing 5 can rotate the rotating shaft 4 Can be restricted so that the bearing 5 does not slide in the contraction direction of the rotating shaft 4 from the reference position. Further, with the above structure, adjustment of the bearing 5 at the time of maintenance becomes unnecessary, and the maintenance cost can be reduced. Further, in order to facilitate sliding of the bearing, the outer diameter surface 18a of the bearing fixing member 18 and the inner diameter surface 19a of the bearing support member 19 may be made of a slippery material.
  • FIG. 11 is a schematic diagram of a bearing support structure according to Embodiment 8 of the present invention. 11, the same reference numerals as those in the first embodiment shown in FIG. 4 denote the same or similar components, and a detailed description thereof will be omitted.
  • the bearing 47 has a configuration including the bearing fixing member 20 and the bearing main body 37 provided inside the bearing fixing member 20. Therefore, the outer periphery of the bearing fixing member 20 constitutes the outer periphery of the bearing 47.
  • a bearing fixing member 20 is fitted to the outer ring of the bearing 5.
  • a second bearing fixing member 21 as a collar or a ring is further provided between the inner diameter surface 22a of the bearing support member 22 and the outer diameter surface 20a of the bearing fixing member 20 in which the bearing 5 is fitted.
  • the second bearing fixing member 21 corresponds to a spacer formed in an annular shape.
  • a second bearing fixing member 21 is fitted to the outer diameter surface 20a of the bearing fixing member 20.
  • the outer diameter surface 20a of the bearing fixing member 20 and the inner diameter surface 21a of the second bearing fixing member 21 are fitted. Further, the outer diameter surface 21b of the second bearing fixing member 21 and the inner diameter surface 22a of the bearing support member 22 are fitted.
  • the outer diameter surface 20a of the bearing fixing member 20, the inner diameter surface 21a and the outer diameter surface 21b of the second bearing fixing member 21, and the inner diameter surface 22a of the bearing support member 22 are all inclined in the rotation axis direction. ing. Each of these slopes is provided in a shape that varies similarly.
  • the inner diameter surface 21a of the second bearing fixing member 21 and the bearing support member 22 are brought into contact with each other.
  • the outer diameter surface 21b of the second bearing fixing member 21 and the bearing fixing member 20 can be brought into contact with each other. As a result, the radial load can be supported with the contact area increased.
  • FIG. 12 is a schematic view showing a modified example of the bearing support structure of FIG. 11, in which a flat portion is provided on the bearing fixing member.
  • the bearing 48 has a configuration including the bearing fixing member 23 and the bearing main body 38 provided inside the bearing fixing member 23. Therefore, the outer peripheral part of the bearing fixing member 23 constitutes the outer peripheral part of the bearing 48.
  • the bearing fixing member 23 inclined in the axial direction has a flat portion 23c parallel to the axial direction on a part of the inclined outer diameter surface 23a.
  • a flat portion 24c and a flat portion 24d are provided on the inner surface 24a and the outer surface 24b of the second bearing fixing member 24 that are inclined in the axial direction, respectively, at the inclined portions.
  • the second bearing fixing member 24 corresponds to a spacer formed in an annular shape.
  • the bearing support member 25 inclined in the axial direction is provided with a flat portion 25c on a part of the inclined inner surface 25a.
  • each of the flat portion 23c, the flat portion 24c, the flat portion 24d, and the flat portion 25c is provided so as to form planes parallel to each other.
  • the distance from the axis of the rotating shaft 4 to the flat portion 23c and the distance from the axis of the rotating shaft 4 to the flat portion 24c are provided to be constant in the axial direction of the rotating shaft.
  • the distance from the axis of the rotating shaft 4 to the flat portion 24d and the distance from the axis of the rotating shaft 4 to the flat portion 25c are provided so as to be constant in the axial direction of the rotating shaft. Therefore, the structure shown in FIG. 12 can support a larger radial load by having these flat portions.
  • FIG. 13 is a schematic diagram of a bearing support structure according to Embodiment 9 of the present invention. 13, the same reference numerals as those in the first embodiment shown in FIG. 4 denote the same or similar components, and a detailed description thereof will be omitted.
  • a bearing support member 27 is fitted on an outer diameter surface 26a which is an outer ring of the bearing 26.
  • a convex portion 26 b is provided on an outer diameter surface 26 a, which is an outer peripheral portion of the bearing 26, at a central portion in the axial direction of the rotating shaft 4.
  • a concave portion 27b is provided on an inner diameter surface 27a serving as an inner peripheral portion of the bearing support member 27.
  • the concave portion 27b has convex portions 27c at both ends in the axial direction of the rotating shaft 4.
  • the convex portions 27c at both ends of the concave portion 27b are in contact with the outer diameter surface 26a of the bearing 26.
  • the rotating shaft may thermally expand beyond the range where the bearing and the bearing support member are fitted, and the bearing may be detached from the bearing support member.
  • the convex portion 26b on the bearing 26 side and providing the concave portion 27b on the bearing support member 27 side when the bearing 26 slides due to thermal expansion of the rotating shaft 4, The bearing 26 can be prevented from coming off the bearing support member 27. Further, even when the bearing 26 slides in the contraction direction of the rotary shaft 4, the wheel can be similarly prevented from being removed.
  • An example of utilizing the support structure of the present invention is to apply the present invention to an elevator hoisting machine, but the present invention is not limited to this.
  • INDUSTRIAL APPLICABILITY The present invention can be used, for example, not only for industrial electric motors but also for hoists, agricultural equipment, and the like.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Power Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Support Of The Bearing (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

Une structure de support pour un appareil de levage selon la présente invention comprend des paliers qui supportent un arbre rotatif, et des éléments de support de palier qui logent les paliers. La section circonférentielle interne des éléments de support de palier est en contact partiel avec la section circonférentielle externe des paliers, respectivement, amenant ainsi des espaces à exister respectivement entre la section circonférentielle interne des éléments de support de palier et la section circonférentielle externe des paliers.
PCT/JP2018/023501 2018-06-20 2018-06-20 Structure de support pour appareil de levage WO2019244285A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2020525156A JP6949221B2 (ja) 2018-06-20 2018-06-20 巻上機の支持構造
CN201880094606.2A CN112272647B (zh) 2018-06-20 2018-06-20 曳引机的支承结构
PCT/JP2018/023501 WO2019244285A1 (fr) 2018-06-20 2018-06-20 Structure de support pour appareil de levage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/023501 WO2019244285A1 (fr) 2018-06-20 2018-06-20 Structure de support pour appareil de levage

Publications (1)

Publication Number Publication Date
WO2019244285A1 true WO2019244285A1 (fr) 2019-12-26

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PCT/JP2018/023501 WO2019244285A1 (fr) 2018-06-20 2018-06-20 Structure de support pour appareil de levage

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JP (1) JP6949221B2 (fr)
CN (1) CN112272647B (fr)
WO (1) WO2019244285A1 (fr)

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