CN112654575A - Car suspension wheel assembly - Google Patents
Car suspension wheel assembly Download PDFInfo
- Publication number
- CN112654575A CN112654575A CN201880097049.XA CN201880097049A CN112654575A CN 112654575 A CN112654575 A CN 112654575A CN 201880097049 A CN201880097049 A CN 201880097049A CN 112654575 A CN112654575 A CN 112654575A
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- China
- Prior art keywords
- car
- car suspension
- suspension wheel
- sheave
- pair
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- B66B7/08—Arrangements of ropes or cables for connection to the cars or cages, e.g. couplings
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The car suspension wheel assembly comprises: a cross beam mounted on the car; a car suspension wheel rotatably supported by the cross beam; and a longitudinal reinforcement attached to the cross beam to reinforce the cross beam, the longitudinal reinforcement protruding in a direction away from the car in a vertical direction than the car suspending sheave. Therefore, when the car suspension wheel and the car suspension wheel assembly are detached from the car, the car suspension wheel assembly can be placed on the vertical reinforcements without grounding the car suspension wheel, and thus damage to the car suspension wheel can be prevented.
Description
Technical Field
The present invention relates to a car suspension sheave assembly including a car suspension sheave for suspending a car of an elevator.
Background
A car suspension sheave is provided on the lower side of a car of an elevator. Rope wheels are arranged at two ends of the suspension wheel beam. A compression load is applied to the suspended sheave beam by the rope tension stretched between the left and right sheaves, and an excessive moment load is applied by the rope tension of the suspended car of the sheaves at both ends.
Therefore, since the suspension sheave beam requires an excessively large cross-sectional performance, the cross-sectional height of the suspension sheave beam is slightly smaller than the sheave diameter. Therefore, the rope retaining member below the sheave is directly attached to the suspended sheave beam by a metal fitting (see, for example, patent document 1).
Documents of the prior art
Patent document
Patent document 1: international publication No. 2007/094367
Disclosure of Invention
Problems to be solved by the invention
However, when the car suspension sheave is assembled or transported, the rope retaining member is detached from the car suspension sheave in advance, and the sheave is directly grounded so that the rope retaining member is not damaged. Therefore, a part of the sheave may be damaged.
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a car suspension sheave assembly that can prevent damage to a sheave.
Means for solving the problems
In order to solve the above problem, a car suspension wheel assembly according to the present invention includes: a cross beam mounted on the car; a car suspension wheel rotatably supported by the cross beam; and a longitudinal reinforcement attached to the cross beam to reinforce the cross beam, the longitudinal reinforcement protruding in a direction away from the car in a vertical direction than the car suspending sheave.
Effects of the invention
According to the car suspension wheel assembly of the present invention, damage to the car suspension wheel can be prevented.
Drawings
Fig. 1 is a schematic diagram showing an internal structure of a hoistway in which a car provided with a car suspension wheel assembly according to embodiment 1 moves.
Fig. 2 is a perspective view showing a state in which the car suspension wheel assembly shown in fig. 1 is mounted on a lower side of a car floor of a car.
Fig. 3 is a side view showing a state in which the car suspension wheel assembly is mounted on the lower side of the car floor of the car.
Fig. 4 is a perspective view of the car suspension wheel assembly.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings.
Embodiment 1.
Fig. 1 is a schematic diagram showing an internal structure of a hoistway in which a car of an elevator moves.
As shown in fig. 1, a pair of car guide rails 2 and a pair of counterweight guide rails 3 are vertically disposed in a hoistway 1. The lower ends of the pair of car guide rails 2 and the pair of counterweight guide rails 3 are fixed to the bottom surface of the hoistway 1.
A car 30 is disposed between the pair of car guide rails 2, and a counterweight 5 is disposed between the pair of counterweight guide rails 3. The car 30 and the counterweight 5 are suspended inside the hoistway 1 by a plurality of ropes 20. The car 30 is movable in the vertical direction under the guidance of the pair of car guide rails 2. The counterweight 5 is movable in the vertical direction under the guide of the pair of counterweight guide rails 3. A hoisting machine 6 on which a rope 20 is wound is provided in an upper portion of the hoistway 1. The hoisting machine 6 is a driving device that moves the car 30 and the counterweight 5 via the ropes 20.
A pair of upper beams 13 are fixed to a lower portion of a car floor 31 of the car 30. Further, a pair of car suspension wheel assemblies 10 are mounted on a lower portion of a car floor 31 of the car 30 via a pair of upper beams 13. The car suspension wheel assembly 10 has a cross beam 16. A rope 20 is stretched over the pair of car suspension wheel assemblies 10. Further, a suspension system for suspending the car 30 and the counterweight 5 by the ropes 20 is 4: 1 rope winding mode.
A pair of balance chains 23 for compensating for the balance between the car 30 side and the counterweight 5 side are suspended between the car 30 and the counterweight 5. One end of each of the balance chains 23 is attached to the lower surface of the cross member 16 of the car suspension wheel assembly 10, and the other end is attached to the lower surface of the counterweight 5.
Next, the car suspension wheel assembly 10 will be described in detail. Fig. 2 is a perspective view showing a state in which the car suspension wheel assembly 10 is disposed on the lower side of the car floor 31 of the car 30. Fig. 3 is a side view showing a state in which the car suspension wheel assembly 10 is disposed on the lower side of the car floor 31 of the car 30. Fig. 4 is a perspective view of the car suspension wheel assembly 10 in a state detached from the car 30.
Since the pair of car suspending wheel assemblies 10 arranged in parallel to each other on the car floor 31 of the car 30 have the same configuration, a detailed configuration will be described for one of the pair of car suspending wheel assemblies 10 in the following description.
In fig. 2 to 4, the rope 20 mounted on the car suspension wheel assembly 10 is omitted.
As shown in fig. 2, the car suspension wheel assembly 10 is provided in parallel with the car doors 30a of the car 30. That is, the car suspension wheel assembly 10 extends in a direction toward the left and right walls when viewed from the car doors 30 a. The car suspension wheel assembly 10 includes a cross beam 16, a 1 st car suspension wheel 17a and a 2 nd car suspension wheel 17b, and a pair of 1 st leg members 18a and a pair of 2 nd leg members 18b as longitudinal reinforcements. The cross member 16 has a length longer than a length between the left and right walls of the car 30. The cross member 16 projects outward in the horizontal direction from the left and right walls. The cross member 16 has a 1 st cross member 16a and a 2 nd cross member 16b extending parallel to each other. The 1 st cross member 16a is disposed outside the car floor 31 of the car 30, and the 2 nd cross member 16b is disposed on the center side of the car floor 31 of the car 30.
A 1 st car suspension sheave 17a and a 2 nd car suspension sheave 17b, which are a pair of car suspension sheaves, are rotatably supported by the cross beam 16. The 1 st car suspending sheave 17a, which is one of the pair of car suspending sheaves, is provided at one end in the longitudinal direction of the cross beam 16. The 2 nd car suspending sheave 17b, which is the other of the pair of car suspending sheaves, is provided at the other end of the cross beam 16. That is, the 1 st car suspending sheave 17a and the 2 nd car suspending sheave 17b are mounted at positions below the left and right walls of the car 30. The outer diameter portions of the 1 st car suspending sheave 17a and the 2 nd car suspending sheave 17b are located outside the left and right walls of the car 30. The 1 st car suspension sheave 17a and the 2 nd car suspension sheave 17b have the same configuration.
As described above, the cross member 16 has the 1 st cross member 16a and the 2 nd cross member 16b extending parallel to each other. The 1 st car suspension sheave 17a is provided between the 1 st cross member 16a and the 2 nd cross member 16 b. The wheel shaft 7a of the 1 st car suspension sheave 17a is attached to the 1 st cross member 16a and the 2 nd cross member 16 b. The 1 st car suspension sheave 17a is mounted between the 1 st cross member 16a and the 2 nd cross member 16b, and is rotatable by a bearing provided between the wheel shaft 7a and the 1 st car suspension sheave 17 a.
The 2 nd car suspending sheave 17b is provided between the 1 st cross member 16a and the 2 nd cross member 16 b. The wheel shaft 7b of the 2 nd car suspension sheave 17b is attached to the 1 st cross member 16a and the 2 nd cross member 16 b. The 2 nd car suspension sheave 17b is mounted between the 1 st cross member 16a and the 2 nd cross member 16b, and is rotatable by a bearing provided between the wheel shaft 7b and the 2 nd car suspension sheave 17 b.
A pair of 1 st leg members 18a are attached to the 1 st cross member 16a and the 2 nd cross member 16b at positions corresponding to the 1 st car suspending sheave 17 a. Here, one of the pair of 1 st leg members 18a is attached to the 1 st cross member 16 a. The other of the pair of 1 st leg members 18a is attached to the 2 nd cross member 16 b. Thus, the pair of 1 st leg members 18a are provided to face each other so as to sandwich the 1 st car suspending sheave 17a between the pair of 1 st leg members 18 a.
Further, a pair of 2 nd leg members 18b are attached to the 1 st cross member 16a and the 2 nd cross member 16b at positions corresponding to the 2 nd car suspending sheave 17 b. Here, one of the pair of 2 nd leg members 18b is attached to the 1 st cross member 16 a. The other of the pair of 2 nd leg members 18b is attached to the 2 nd cross member 16 b. Thus, the pair of 2 nd leg members 18b are provided so as to face each other so as to sandwich the 2 nd car suspending sheave 17b between the pair of 2 nd leg members 18 b.
The pair of 1 st leg members 18a extend vertically downward from the 1 st cross member 16a and the 2 nd cross member 16 b. That is, the pair of 1 st leg members 18a extend in the vertical direction in a direction away from the car floor 31 of the car 30. Further, the pair of 1 st leg members 18a is mounted on the portion of the 1 st cross member 16a and the 2 nd cross member 16b to which the wheel shaft 7a of the 1 st car suspending sheave 17a is mounted.
The pair of 2 nd leg members 18b extend vertically downward from the 1 st cross member 16a and the 2 nd cross member 16 b. That is, the pair of 2 nd leg members 18b extend in a direction away from the car floor 31 of the car 30. Further, a pair of 2 nd leg members 18b are mounted on the portions of the 1 st and 2 nd cross members 16a and 16b to which the wheel shafts 7b of the 2 nd car suspending wheels 17b are mounted.
Here, the upward suspension load and the compression load generated by the tension of the rope 20 are transmitted to the 1 st cross member 16a and the 2 nd cross member 16b via the wheel shaft 7a of the 1 st car suspension sheave 17a and the wheel shaft 7b of the 2 nd car suspension sheave 17 b. In particular, the upper side flanges of the 1 st beam member 16a and the 2 nd beam member 16b may be deformed due to the 1 st beam member 16a and the 2 nd beam member 16b receiving an upward suspension load. On the other hand, the 1 st leg member 18a and the 2 nd leg member 18b function as longitudinal reinforcements for reinforcing the 1 st cross member 16a and the 2 nd cross member 16 b. Further, the upper side flanges of the 1 st beam member 16a and the 2 nd beam member 16b are prevented from being deformed by bringing the end portions of the 1 st leg member 18a and the 2 nd leg member 18b into contact with the upper side flanges of the 1 st beam member 16a and the 2 nd beam member 16 b.
The pair of 1 st leg members 18a protrude below the 1 st car suspending sheave 17a in the vertical direction in a direction away from the car floor 31 of the car 30. Therefore, the lower end portions of the pair of 1 st leg members 18a are positioned below the outer diameter portion of the 1 st car suspending sheave 17 a.
The pair of 2 nd leg members 18b protrude below the 2 nd car suspending sheave 17b in the vertical direction in a direction away from the car floor 31 of the car 30, that is, downward. Therefore, the lower end portions of the pair of 2 nd leg members 18b are positioned below the outer diameter portion of the 2 nd car suspending sheave 17 b. The 1 st leg part 18a and the 2 nd leg part 18b have the same length as each other. Therefore, the lower end portions of the 1 st leg member 18a and the 2 nd leg member 18b are located at positions separated downward by the same distance from the cross member 16.
A rope retaining member 19 is provided between the pair of 1 st leg members 18 a. The rope retaining member 19 is positioned below the rope 20 wound around the outer diameter portion of the 1 st car suspending sheave 17 a. The rope 20 wound around the 1 st car suspension sheave 17a is restricted from falling off from the 1 st car suspension sheave 17a by the rope retaining member 19.
Further, a rope retaining member 19 is provided between the pair of 2 nd leg members 18 b. The rope retaining member 19 is positioned below the rope 20 wound around the outer diameter portion of the 2 nd car suspending sheave 17 b. The rope 20 wound around the 2 nd car suspension sheave 17b is restricted from falling off from the 2 nd car suspension sheave 17b by the rope retaining member 19.
In addition, the car suspension wheel assembly 10 of the present embodiment is provided with a vibration damping rubber 11 for suppressing vibration of the car 30. Further, the car suspension wheel assembly 10 is provided with a weighing device 12 for detecting a load amount of the car 30. The car suspension wheel assembly 10 is provided with a horseshoe spring 15 that deforms according to the load amount of the car 30.
Specifically, as shown in fig. 2 and 3, the upper beam 13 is attached to the car floor 31 of the car 30, and as shown in fig. 4, the vibration-proof rubber 11 and the horseshoe spring 15 are assembled via the connecting plate 14, and then the cross beam 16 is assembled.
Further, the lower side flanges of the 1 st beam member 16a and the 2 nd beam member 16b are formed with cutouts for attaching the 1 st leg member 18a and the 2 nd leg member 18b, respectively. Here, the lower flange is not formed at the end portions of the 1 st beam member 16a and the 2 nd beam member 16b at the portion where the scale device 12 is provided. On the other hand, lower flanges are formed at the ends of the 1 st beam member 16a and the 2 nd beam member 16b at positions where the scale device 12 is not provided, and the ends of the balance chain 23 are connected thereto.
In the case where the vibration isolating rubber 11 and the horseshoe spring 15 are not provided in the car suspending wheel assembly 10, the 1 st leg member 18a and the 2 nd leg member 18b are extended above the 1 st cross member 16a and the 2 nd cross member 16b, and the upper ends of the 1 st leg member 18a and the 2 nd leg member 18b are assembled to the car floor 31 or the upper beam 13.
As described above, in the car suspension wheel assembly 10 according to embodiment 1, the 1 st leg member 18a and the 2 nd leg member 18b as the longitudinal reinforcements protrude below the 1 st car suspension wheel 17a and the 2 nd car suspension wheel 17b in the direction away from the car 30, that is, in the vertical direction.
Thus, when the car suspension sheave assembly 10 having the 1 st car suspension sheave 17a and the 2 nd car suspension sheave 17b is assembled or conveyed, the 1 st car suspension sheave 17a and the 2 nd car suspension sheave 17b do not touch the ground, and the lower ends of the 1 st leg member 18a and the 2 nd leg member 18b touch the ground. Therefore, damage to the 1 st car suspension sheave 17a and the 2 nd car suspension sheave 17b can be prevented. In addition, since the 1 st car suspension sheave 17a and the 2 nd car suspension sheave 17b are not directly placed on the ground, it is possible to prevent the 1 st car suspension sheave 17a and the 2 nd car suspension sheave 17b from rotating to cause the car suspension sheave assembly 10 to be moved unexpectedly.
The pair of 1 st leg members 18a are provided to face each other so as to sandwich the 1 st car suspending sheave 17a between the pair of 1 st leg members 18 a. The pair of 2 nd leg members 18b are also provided so as to face each other so as to sandwich the 2 nd car suspending sheave 17b between the pair of 2 nd leg members 18 b.
Accordingly, when the car suspension wheel assembly 10 is assembled or transported, the lower ends of the pair of 1 st leg members 18a and the pair of 2 nd leg members 18b are grounded, so that the car suspension wheel assembly 10 can be stably placed on the ground.
Further, rope retaining members 19 are provided between the pair of 1 st leg members 18a and between the pair of 2 nd leg members 18b as the longitudinal reinforcements, respectively, and the rope retaining members 19 restrict the ropes 20 from being released from the 1 st car suspension sheave 17a and the 2 nd car suspension sheave 17 b.
This can provide rigidity to the rope retaining member 19. Further, when the car suspension wheel assembly 10 including the rope retaining member 19 is grounded, the rope retaining member 19 can be prevented from being damaged by hitting the ground. Further, since it is not necessary to detach the rope retaining member 19 from the 1 st leg member 18a and the 2 nd leg member 18b at the time of carrying or assembling work, workability is improved and it is also possible to prevent the rope retaining member 19 from being lost.
Further, the 1 st leg member 18a and the 2 nd leg member 18b are attached to portions of the 1 st cross member 16a and the 2 nd cross member 16b to which the wheel shaft 7a of the 1 st car suspension sheave 17a and the wheel shaft 7b of the 2 nd car suspension sheave 17b are attached.
Therefore, the suspension load and the compression load transmitted to the cross member 16 via the wheel shaft 7a of the 1 st car suspension sheave 17a and the wheel shaft 7b of the 2 nd car suspension sheave 17b can be further strengthened by the 1 st cross member 16a and the 2 nd cross member 16b, and the strength can be improved. Therefore, it is not necessary to increase the height of the 1 st cross member 16a and the 2 nd cross member 16b to increase the cross-sectional area, and the manufacturing cost of the car suspension wheel assembly 10 can be suppressed. In addition, the weight of the 1 st cross member 16a and the 2 nd cross member 16b can be reduced, and the workability of the transportation or assembly work of the car suspension wheel assembly 10 can be further improved.
Description of the reference symbols
7: a wheel axle; 10: a car suspension wheel assembly; 16: a cross beam; 16 a: a 1 st cross member; 16 b: a 2 nd cross member; 17 a: 1 st car suspension wheel; 17 b: 2 nd car suspension wheel; 18 a: a 1 st leg member; 18 b: a 2 nd leg member; 19: a rope run-off preventing member; 30: a car is used.
Claims (4)
1. A car suspension wheel assembly is provided with:
a cross beam mounted on the car;
a car suspension wheel rotatably supported by the cross beam; and
a longitudinal reinforcement member attached to the cross member to reinforce the cross member,
the longitudinal reinforcement protrudes in a direction away from the car than the car suspending wheel in the vertical direction.
2. The car suspension wheel assembly of claim 1,
the longitudinal stiffener has a pair of leg members provided to face each other so as to sandwich the car suspending wheel therebetween.
3. The car suspension wheel assembly of claim 2,
the car suspension wheel assembly further includes a rope retaining member provided between the pair of leg members to restrict the rope from falling off the car suspension wheel.
4. The car suspension wheel assembly of any of claims 1-3, wherein,
the longitudinal stiffener is mounted in the cross beam at a portion where the axle of the car suspension wheel is mounted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2018/033186 WO2020049714A1 (en) | 2018-09-07 | 2018-09-07 | Car-suspending wheel assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112654575A true CN112654575A (en) | 2021-04-13 |
Family
ID=69721983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880097049.XA Pending CN112654575A (en) | 2018-09-07 | 2018-09-07 | Car suspension wheel assembly |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6692514B1 (en) |
| CN (1) | CN112654575A (en) |
| WO (1) | WO2020049714A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113353828A (en) * | 2021-07-13 | 2021-09-07 | 上海大屯能源股份有限公司江苏分公司 | Inclined roadway lifting guide cast steel rope pulley set |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114148865A (en) * | 2021-12-16 | 2022-03-08 | 杭州奥立达电梯有限公司 | Integrated form collet sedan-chair frame equipment of high-efficient overall arrangement |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004189441A (en) * | 2002-12-12 | 2004-07-08 | Mitsubishi Electric Building Techno Service Co Ltd | Main cable detachment preventer of sheave for elevator |
| JP2005213004A (en) * | 2004-01-30 | 2005-08-11 | Mitsubishi Electric Corp | Under-car sheave type elevator device |
| WO2007094367A1 (en) * | 2006-02-14 | 2007-08-23 | Toshiba Elevator Kabushiki Kaisha | Main rope shaking prevention device and elevator provided with it |
| US20080289908A1 (en) * | 2007-05-21 | 2008-11-27 | Toshiba Elevator Kabushiki Kaisha | Sheave support apparatus for elevator |
| US20140027207A1 (en) * | 2011-04-06 | 2014-01-30 | Cemal Selcuk Yapar | Elevator system including a 4:1 roping arrangement |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009154611A1 (en) * | 2008-06-17 | 2009-12-23 | Otis Elevator Company | Underslung elevator car configuration |
-
2018
- 2018-09-07 WO PCT/JP2018/033186 patent/WO2020049714A1/en active Application Filing
- 2018-09-07 CN CN201880097049.XA patent/CN112654575A/en active Pending
- 2018-09-07 JP JP2020507719A patent/JP6692514B1/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004189441A (en) * | 2002-12-12 | 2004-07-08 | Mitsubishi Electric Building Techno Service Co Ltd | Main cable detachment preventer of sheave for elevator |
| JP2005213004A (en) * | 2004-01-30 | 2005-08-11 | Mitsubishi Electric Corp | Under-car sheave type elevator device |
| WO2007094367A1 (en) * | 2006-02-14 | 2007-08-23 | Toshiba Elevator Kabushiki Kaisha | Main rope shaking prevention device and elevator provided with it |
| US20080289908A1 (en) * | 2007-05-21 | 2008-11-27 | Toshiba Elevator Kabushiki Kaisha | Sheave support apparatus for elevator |
| US20140027207A1 (en) * | 2011-04-06 | 2014-01-30 | Cemal Selcuk Yapar | Elevator system including a 4:1 roping arrangement |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113353828A (en) * | 2021-07-13 | 2021-09-07 | 上海大屯能源股份有限公司江苏分公司 | Inclined roadway lifting guide cast steel rope pulley set |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6692514B1 (en) | 2020-05-13 |
| WO2020049714A1 (en) | 2020-03-12 |
| JPWO2020049714A1 (en) | 2020-09-10 |
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