CN115461297A - Vibration-proof device for elevator - Google Patents
Vibration-proof device for elevator Download PDFInfo
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- CN115461297A CN115461297A CN202080099940.4A CN202080099940A CN115461297A CN 115461297 A CN115461297 A CN 115461297A CN 202080099940 A CN202080099940 A CN 202080099940A CN 115461297 A CN115461297 A CN 115461297A
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- vibration
- car
- elevator
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- corner
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- 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
- B66B11/02—Cages, i.e. cars
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
Provided is an elevator vibration isolation device which can simplify the structure for supporting an elevator car. An elevator vibration isolation device is provided with: a plurality of corner vibration isolators provided below four corners of a floor of a car of an elevator; and a center vibration isolator disposed below a floor of the car at a position overlapping a lower frame of a car frame surrounding an outer periphery of the car on a horizontal projection plane, and disposed at a height at which an upper surface of the center vibration isolator contacts a lower surface of the car before the plurality of corner vibration isolators when the car is installed.
Description
Technical Field
The present invention relates to a vibration isolator for an elevator.
Background
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. H08-192972
Disclosure of Invention
Problems to be solved by the invention
However, in the anti-vibration device for an elevator described in patent document 1, the weight of the car of the elevator is transmitted to the support frame via anti-vibration members provided at four corners of the lower portion of the floor of the elevator car. Therefore, a structure for supporting the load applied to the lower four corners of the elevator car floor is required.
The present invention has been made to solve the above problems. The invention aims to provide an elevator anti-vibration device which can simplify the structure for supporting an elevator car.
Means for solving the problems
The vibration isolation device for an elevator of the present invention comprises: a plurality of corner vibration isolators provided below four corners of a floor of a car of an elevator; and a center vibration isolator disposed below a floor of the car at a position overlapping a lower frame of a car frame surrounding an outer periphery of the car on a horizontal projection plane, and disposed at a height at which an upper surface of the center vibration isolator contacts a lower surface of the car before the plurality of corner vibration isolators when the car is installed.
Effects of the invention
According to the present invention, the upper surface of the center vibration isolator contacts the lower surface of the car before the corner vibration isolators are installed in the car. Therefore, the structure for supporting the elevator car can be simplified.
Drawings
Fig. 1 is a structural diagram of an elevator to which a vibration isolation device of an elevator in embodiment 1 is applied.
Fig. 2 is a diagram of an elevator vibration isolation device according to embodiment 1.
Fig. 3 is a diagram for explaining a method of installing a vibration isolator of an elevator in embodiment 1.
Fig. 4 is a plan view of a car floor of an elevator to which a vibration isolation device of the elevator in embodiment 1 is applied.
Fig. 5 is a diagram of an elevator vibration isolation device according to embodiment 2.
Fig. 6 is a diagram for explaining a method of installing a vibration isolator of an elevator in embodiment 2.
Fig. 7 is a diagram for explaining a method of installing a vibration isolator of an elevator in embodiment 3.
Detailed Description
Embodiments are described with reference to the drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals. Repeated explanation of this portion is appropriately simplified or omitted.
Fig. 1 is a structural diagram of an elevator to which a vibration isolation device of an elevator in embodiment 1 is applied.
In the elevator of fig. 1, a hoistway 1 penetrates each floor of a building not shown. The machine room 2 is provided directly above the hoistway 1. The plurality of landings 3 are provided on each floor of the building. Each of the landings 3 faces the hoistway 1.
The hoisting machine 4 is provided in the machine room 2. The main rope 5 is wound around the hoisting machine 4.
The car 6 is disposed inside the hoistway 1. The car 6 is suspended on one side of the main rope 5. The counterweight 7 is disposed inside the hoistway 1. A counterweight 7 is suspended on the other side of the main rope 5.
The landing doors 8 are provided at the entrances and exits of the landings 3, respectively. The car door 9 is provided at an entrance of the car 6.
The car frame 10 is provided so as to surround the outer periphery of the car 6. The car frame 10 is a frame body having a rectangular outer shape formed by an upper frame, a vertical frame, and a lower frame 11. The car frame 10 supports the car 6.
The support frame 12 is provided between the car 6 and the lower frame 11. For example, the support frame 12 has a square frame shape. The support frame 12 is disposed with its four sides along the edges of the floor of the car 6, respectively.
Next, the vibration isolator will be described with reference to fig. 2.
Fig. 2 is a diagram of an elevator vibration isolation device according to embodiment 1.
As shown in fig. 2, the vibration isolator according to embodiment 1 includes two types of vibration isolators, namely, corner vibration isolators 13 and center vibration isolators 14.
For example, each of the plurality of corner vibration isolators 13 is made of a material that absorbs vibration. For example, each of the plurality of corner vibration isolators 13 is formed of an elastic body. For example, each of the plurality of corner vibration-proof members 13 is a vibration-proof rubber. The plurality of corner vibration isolators 13 are attached to the support frame 12, respectively. The corner vibration isolators 13 are provided below the four corners of the floor of the car 6, not shown. For example, the plurality of corner vibration isolators 13 are attached to both end sides of the support frame 12. The plurality of corner vibration isolators 13 are attached to the support frame 12 by fasteners 15, respectively.
For example, the center vibration-proof member 14 is made of a material that absorbs vibrations. For example, the center vibration isolator 14 is made of an elastic body. The center vibration-proof member 14 is, for example, a vibration-proof rubber. For example, the elastic modulus of the center vibration insulators 14 is the same as that of the corner vibration insulators 13. In the natural state, the height of the center vibration isolator 14 is higher than the height of the corner vibration isolators 13 in the natural state. For example, when the weight M of the car 6, not shown, acts from above, the position of the upper surface of the center antivibration member 14 is at the same height as the position of the upper surface of the corner antivibration member 13 in the natural state. For example, when the weight M of the car 6, not shown, acts from above, the height of the center antivibration member 14 is equal to the height of the corner antivibration members 13 in the natural state. For example, the center vibration insulator 14 is attached near the center of the support frame 12. For example, the center vibration isolators 14 are respectively provided below the vicinity of the center of the side portion of the floor of the car 6, not shown. The center vibration-proof member 14 is installed in such a manner that the bottom surface thereof is installed at the same height as the bottom surfaces of the plurality of corner vibration-proof members 13. The center vibration isolator 14 is attached to the support frame 12 by fasteners 15.
For example, the fastener 15 is a bolt and a nut. For example, the fastener 15 is a stopper bolt.
Next, a method of installing the vibration isolator will be described with reference to fig. 3.
Fig. 3 is a diagram for explaining a method of installing an elevator vibration isolation device according to embodiment 1.
As shown in fig. 3, the car floor frame 16 is adjacent to the support frame 12 from above. The car floor frame 16 constitutes the lower part of the car 6. The car floor frame 16 is adjacent to the car floor 17 from below. The car floor frame 16 supports the car 6 from below. The car floor 17 is a floor surface on which passengers of the elevator ride.
The plurality of corner vibration isolators 13 are respectively adjacent to the car floor frame 16 from below. The center vibration isolator 14 is adjacent to the car floor frame 16 from below. The weight M of the car 6 acts on the center vibration isolator 14 from above in the vertical direction. The weight M of the car 6 is the sum of the weight of the car room and the car floor frame 16. The weight M of the car 6 is transmitted to the lower frame 11 via the center vibration insulator 14 and the support frame 12. When the weight M of the car 6 acts from above in the vertical direction, the height of the center antivibration member 14 becomes equal to the height of the corner antivibration member 13.
Next, a procedure for mounting the car 6 will be described. First, the center vibration isolator 14 is provided. Next, the car 6 is set from above the center vibration isolator 14. At this time, the lower surface of the car floor frame 16 is in contact with the upper surface of the center vibration isolator 14. The center vibration isolator 14 is deformed by the weight M of the car 6. Specifically, the center vibration isolator 14 contracts in the vertical direction. Next, the center vibration isolator 14 is attached to the car floor frame 16 by the fastener 15. Then, the plurality of corner vibration isolators 13 are respectively disposed between the support frame 12 and the car floor frame 16. Finally, the plurality of corner vibration isolators 13 are attached to the car floor frame 16 by fasteners 15, respectively.
Next, the installation position of the vibration isolation device will be described with reference to fig. 4.
Fig. 4 is a plan view of a car floor of an elevator to which a vibration isolation device of an elevator in embodiment 1 is applied.
As shown in fig. 4, the four corner vibration isolators 13 are provided below the four corners of the car floor 17. One of the two center vibration isolators 14 is disposed below the vicinity of the center of one side of the car floor 17. One of the two center vibration isolators 14 is disposed above one end of the lower frame 11. For example, one of the two center vibration isolators 14 is disposed at a position at least partially overlapping the lower frame 11 on the horizontal projection plane. For example, one of the two center vibration isolators 14 is disposed at a position where the entire center vibration isolator overlaps the lower frame 11 on the horizontal projection plane. The other of the two center vibration isolators 14 is provided below the vicinity of the center of one of the sides of the car floor 17 that faces the side on which the one of the two center vibration isolators 14 is disposed. The other of the two center vibration isolators 14 is disposed above the other end of the lower frame 11. For example, the other of the two center vibration isolators 14 is disposed at a position at least partially overlapping the lower frame 11 on the horizontal projection plane. For example, the other of the two center vibration isolators 14 is disposed at a position where the entire center vibration isolator overlaps the lower frame 11 on the horizontal projection plane.
According to embodiment 1 described above, the upper surface of the center antivibration member 14 comes into contact with the lower surface of the car 6 before the plurality of corner antivibration members 13 are installed in the car 6. Therefore, the weight M of the car 6 acts on the center vibration isolators 14, and the load acting on the corner vibration isolators 13 is reduced. As a result, the structure for supporting the car 6 can be simplified.
The height of the center antivibration member 14 is equal to the height of the corner antivibration members 13 when the weight M of the car 6 acts from above. As a result, the weight M of the car 6 does not act on the plurality of corner vibration isolators 13, and only the weight of the load such as passengers and freight of the elevator acts on the plurality of corner vibration isolators 13. The force generated by the weight M of the car 6 does not act on the lower side of the corner vibration insulator 13. Thus, the functions of the center vibration isolator 14 and the plurality of corner vibration isolators 13 are separated from each other. Therefore, the load acting on the support frame 12 is reduced.
In the conventional elevator structure, in order to receive a bending moment generated in the support frame 12 by the weight M of the car 6, it is necessary to install a cross brace between the vertical frame of the elevator and the end of the support frame 12. On the other hand, in embodiment 1, when the cross brace is designed between the vertical frame and the support frame 12 of the elevator, the following is performed.
Let the angle between the supporting frame 12 and the scissor support be theta, and let the load acting on the scissor support vertically downward be b 1 B represents a load acting on the end of the support frame 12 vertically downward 2 The distance from the connecting portion between the support frame 12 and the vertical frame to the connecting portion between the support frame 12 and the scissor brace is l. The load b 'shared by the shear brace and the support frame 12 is b' = b 1 +b 2 . In the prior art, let b be the load shared by the cross brace and the support frame 12Then b 'is b' =1/3b. In addition, the tensile load acting on the scissor-stays is b 1 And/sin theta. B is formed by 2 Bending moment acting on the support frame 12, i.e. b 2 The value of x l is 1/3 compared with the prior art. Therefore, even when the scissor supports are provided between the vertical frame of the elevator and the end portions of the support frame 12, the rigidity of the scissor supports can be reduced, and weight reduction can be achieved.
Further, by positioning the corner vibration isolators 13 close to the lower frame 11, the bending moment acting on the support frame 12 is further reduced. For example, if the corner vibration isolators 13 are displaced to the midpoint between the connecting portion between the support frame 12 and the vertical frame and the connecting portion between the support frame 12 and the cross brace, the bending moment acting on the support frame 12 becomes b' × 1/2. Since the bending moment generated in the support frame 12 is reduced, the scissor support is not necessary, or the scissor support and the measurement frame can be simplified with reduced components or with reduced components. As a result, the cost of the structure for supporting the car 6 can be reduced, the transportation cost can be reduced, and the installation time can be shortened.
Further, if the support frame 12 is made rigid to withstand the bending moment b' xl, it is not necessary to provide a cross brace or a corner post.
The elastic modulus of the corner vibration isolators 13 may be greater than the elastic modulus of the center vibration isolators 14. In this case, the force acting on the corner vibration isolator 13 from vertically above can be reduced.
The elastic modulus of the corner vibration isolators 13 may be the same as that of the center vibration isolator 14.
The fastener 15 may restrict contraction of the center vibration isolator 14 when a load equal to or greater than a predetermined weight acts on the center vibration isolator 14 from below in the vertical direction. In this case, even in an emergency such as when the emergency stop device of the elevator is operated or when the shock absorber collides, the impact load does not act on the center vibration isolator 14.
Embodiment mode 2
Fig. 5 is a diagram of an elevator vibration isolation device according to embodiment 2. The same or corresponding portions as those in embodiment 1 are denoted by the same reference numerals. The description of this portion is omitted.
As shown in fig. 5, the anti-vibration device for an elevator according to embodiment 2 is different from embodiment 1 in that the corner anti-vibration members 13 and the center anti-vibration member 14 have the same height and an adjustment body 18 is provided.
The tuning body 18 is a flat plate-like member. The adjustment body 18 is, for example, a metal plate-like member. For example, the thickness of the adjustment body 18 is the same as the height at which the center vibration isolator 14 contracts in the vertical direction when the weight M of the car 6, not shown, acts on the center vibration isolator 14 from above. The adjustment body 18 is installed to contact the lower surface of the center vibration-proof member 14. The adjustment body 18 is sandwiched between the support frame 12 and the center vibration isolator 14. For example, the adjustment body 18 is attached to the support frame 12 together with the center vibration-proof member 14 by the fastening member 15.
Next, a method of installing the vibration isolation device will be described with reference to fig. 6.
Fig. 6 is a diagram for explaining a method of installing a vibration isolator of an elevator in embodiment 2.
As shown in fig. 6, when the weight M of the car 6 of the elevator acts from the vertical direction upward, the sum of the height of the center antivibration member 14 and the thickness of the adjustment body 18 is equal to the height of the corner antivibration member 13.
According to embodiment 2 described above, the thickness of the adjustment body 18 is the same as the height at which the center vibration isolator 14 contracts in the vertical direction when the weight of the car 6 acts from above. Therefore, the height of the corner vibration insulators 13 can be made the same as the height of the center vibration insulator 14. As a result, the corner vibration isolators 13 and the center vibration isolator 14 can be made to be common members.
The adjustment body 18 may be attached so as to contact the upper surface of the center vibration isolator 14. In this case, the adjustment body 18 is sandwiched between the center vibration isolator 14 and the car floor frame 16.
Fig. 7 is a diagram for explaining a method of installing a vibration isolator of an elevator in embodiment 3. The same or corresponding portions as those in embodiment 1 are denoted by the same reference numerals. The description of this portion is omitted.
As shown in fig. 7, the vibration isolating device for an elevator according to embodiment 3 is different from embodiment 1 in that it includes an adjusting bolt 19.
The plurality of adjusting bolts 19 are respectively extendable in the vertical direction. The plurality of adjustment bolts 19 are respectively attached to contact the upper surfaces of the plurality of corner vibration isolators 13. The adjusting bolts 19 are respectively sandwiched between the corner vibration isolators 13 and the car floor frame 16.
Next, a procedure for mounting the car 6 will be described. First, the center vibration isolator 14 is provided. Next, the car 6 is set from above the center vibration isolator 14. At this time, the lower surface of the car floor frame 16 is in contact with the upper surface of the center vibration isolator 14. The center vibration isolator 14 is deformed by the weight M of the car 6. Specifically, the center vibration isolator 14 contracts in the vertical direction. Next, the center vibration isolator 14 is attached to the car floor frame 16 by the fastener 15. Then, the plurality of corner vibration isolators 13 are respectively disposed between the support frame 12 and the car floor frame 16. Next, the plurality of adjustment bolts 19 are respectively provided on the upper portions of the plurality of corner vibration isolators 13. Finally, the height of the center antivibration member 14 in a state where the weight M of the car 6 of the elevator acts from the vertically upward direction is adjusted to be equal to the sum of the height of each of the plurality of corner antivibration members 13 and the height of the adjusting bolt 19, respectively, by the plurality of adjusting bolts 19.
According to embodiment 3 described above, the adjusting bolt 19 adjusts the gap formed between the upper surface of the corner vibration insulator 13 and the lower surface of the car 6. Therefore, the weight of the car 6 acting on the corner antivibration members 13 can be adjusted at the work site without calculating the weight M of the car 6 in advance. Moreover, the inclination of the car floor 17 can be easily corrected.
The vibration isolating devices for elevators according to embodiments 1 to 3 may be applied to an elevator without a machine room.
Industrial applicability of the invention
As described above, the vibration isolator for an elevator according to the present invention can be used for an elevator.
Description of the reference symbols
1: a hoistway; 2: a machine room; 3: a landing; 4: a traction machine; 5: a main rope; 6: a car; 7: counterweight; 8: a landing door; 9: a car door; 10: a car frame; 11: a lower frame; 12: a support frame; 13: a corner vibration-proof member; 14: a central vibration-proof member; 15: a fastener; 16: a car floor frame; 17: a car floor; 18: adjusting the whole body; 19: and adjusting the bolt.
Claims (5)
1. An elevator vibration isolation device is provided with:
a plurality of corner vibration isolators provided below four corners of a floor of a car of an elevator; and
and a center vibration isolator disposed below a floor of the car at a position overlapping a lower frame of a car frame surrounding an outer periphery of the car on a horizontal projection plane, and disposed at a height at which an upper surface of the center vibration isolator contacts a lower surface of the car before the plurality of corner vibration isolators when the car is installed.
2. The vibration isolator of an elevator according to claim 1,
when the weight of the car acts on the center vibration isolator from above, the height of the center vibration isolator is equal to the height of the corner vibration isolators.
3. The anti-vibration device of an elevator according to claim 1 or 2,
the vibration isolation device for an elevator comprises an adjustment body arranged at a position contacting with the upper surface or the lower surface of the central vibration isolation member, wherein the thickness of the adjustment body is the same as the height of the central vibration isolation member contracted along the vertical direction under the condition that the weight of the car acts from the upper part.
4. The vibration isolator of an elevator according to claim 1 or 2,
the anti-vibration device for an elevator includes a plurality of adjustment bolts that are respectively disposed between the upper surfaces of the corner anti-vibration members and the lower surface of the car, and adjust a gap formed between each of the upper surfaces of the corner anti-vibration members and the lower surface of the car in a vertical direction.
5. The anti-vibration device of an elevator according to any one of claims 1 to 4,
the central vibration-proof member is composed of an elastic body,
each of the plurality of corner vibration isolators is formed of an elastic body having a larger elastic coefficient than the center vibration isolator.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2020/018136 WO2021220408A1 (en) | 2020-04-28 | 2020-04-28 | Vibration damping device for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115461297A true CN115461297A (en) | 2022-12-09 |
Family
ID=78332321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080099940.4A Pending CN115461297A (en) | 2020-04-28 | 2020-04-28 | Vibration-proof device for elevator |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7400958B2 (en) |
| CN (1) | CN115461297A (en) |
| WO (1) | WO2021220408A1 (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3222674B2 (en) * | 1994-02-01 | 2001-10-29 | 株式会社東芝 | Elevator car |
| JPH08192972A (en) * | 1995-01-17 | 1996-07-30 | Mitsubishi Electric Corp | Elevator car |
| JPH10157951A (en) * | 1996-11-29 | 1998-06-16 | Toshiba Elevator Eng Kk | Elevator car for wheelchair |
| JP2006137513A (en) * | 2004-11-11 | 2006-06-01 | Hitachi Ltd | Elevator car and elevator device |
| JP2006347750A (en) * | 2005-06-20 | 2006-12-28 | Mitsubishi Electric Corp | Car floor device of elevator and its remodeling method |
| JP4867470B2 (en) * | 2006-05-22 | 2012-02-01 | 三菱電機株式会社 | Elevator car floor equipment |
| JP2014240321A (en) * | 2013-06-12 | 2014-12-25 | 三菱電機株式会社 | Cage of elevator |
| EP3176121B1 (en) * | 2015-12-02 | 2018-08-08 | KONE Corporation | An elevator car arrangement and method for dampening vibrations |
-
2020
- 2020-04-28 CN CN202080099940.4A patent/CN115461297A/en active Pending
- 2020-04-28 JP JP2022518494A patent/JP7400958B2/en active Active
- 2020-04-28 WO PCT/JP2020/018136 patent/WO2021220408A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2021220408A1 (en) | 2021-11-04 |
| WO2021220408A1 (en) | 2021-11-04 |
| JP7400958B2 (en) | 2023-12-19 |
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