WO2022003984A1 - エレベーターの昇降体の変位抑制装置 - Google Patents

エレベーターの昇降体の変位抑制装置 Download PDF

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Publication number
WO2022003984A1
WO2022003984A1 PCT/JP2020/026298 JP2020026298W WO2022003984A1 WO 2022003984 A1 WO2022003984 A1 WO 2022003984A1 JP 2020026298 W JP2020026298 W JP 2020026298W WO 2022003984 A1 WO2022003984 A1 WO 2022003984A1
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WO
WIPO (PCT)
Prior art keywords
gap
guide rail
stopper
car
elevating body
Prior art date
Application number
PCT/JP2020/026298
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
郷平 山中
誠治 渡辺
健 宮川
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/JP2020/026298 priority Critical patent/WO2022003984A1/ja
Priority to JP2022533019A priority patent/JP7435780B2/ja
Priority to CN202080102253.3A priority patent/CN115803277A/zh
Publication of WO2022003984A1 publication Critical patent/WO2022003984A1/ja

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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
    • B66B11/02—Cages, i.e. cars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/02—Guideways; Guides

Definitions

  • This disclosure relates to a displacement suppressing device for an elevator elevator.
  • Patent Document 1 discloses an example of an elevator.
  • a seismic plate is installed in the car.
  • the seismic plate works with the guide rails to reduce lateral displacement of the car.
  • the seismic plate is provided at one place on the upper part of the car for one guide rail. Therefore, when the elevating body such as a car is tilted due to an eccentric load or the like, the effect of suppressing the displacement may fluctuate.
  • the present disclosure provides a displacement suppressing device for an elevator elevating body that can stably suppress displacement even when the elevating body is tilted due to an eccentric load.
  • the displacement suppressing device is provided at the first position of the elevating body traveling along the guide rail of the elevator, from the first stopper facing the guide rail with a first gap, and from the central portion of the elevating body. It is provided at a second position of the elevating body separated from the first position in the vertical direction, and includes a second stopper facing the guide rail with a second gap larger than the first gap.
  • the displacement suppressing device can stably suppress the displacement of the elevating body even when the elevating body is tilted due to an eccentric load.
  • FIG. It is a block diagram of the elevator which concerns on Embodiment 1.
  • FIG. It is a figure which shows the example of the eccentric load in the car which concerns on Embodiment 1.
  • FIG. It is a figure which shows the example of the displacement by the eccentric load in the car which concerns on Embodiment 1.
  • FIG. It is a front view of the car which concerns on Embodiment 1.
  • FIG. It is a horizontal sectional view of the car which concerns on Embodiment 1.
  • FIG. It is a horizontal sectional view of the stopper which concerns on Embodiment 1.
  • FIG. It is a figure which shows the example of the gap in the displacement suppressing apparatus which concerns on Embodiment 1.
  • FIG. It is a figure which shows the example of the eccentric load in the car which concerns on Embodiment 1.
  • FIG. It is a figure which shows the example of the eccentric load in the car which concerns on Embodiment 1.
  • FIG. It is a figure which shows the example of the inclination by an eccentric load in the car which concerns on Embodiment 2.
  • FIG. It is a top view of the stopper which concerns on Embodiment 3.
  • FIG. It is a block diagram of the displacement suppressing apparatus which concerns on Embodiment 3.
  • FIG. It is a block diagram of the displacement suppressing apparatus which concerns on the 1st modification of Embodiment 3.
  • FIG. 1 is a configuration diagram of an elevator 1 according to the first embodiment.
  • the elevator 1 is installed in a building 2 having a plurality of floors.
  • a hoistway 3 is provided in the building 2.
  • the hoistway 3 is a space that spans a plurality of floors.
  • the machine room 4 is provided above the hoistway 3.
  • a pit 5 is provided at the bottom of the hoistway 3.
  • Elevator 1 includes a hoist 6, a main rope 7, a basket 8, and a counterweight 9.
  • the hoisting machine 6 includes a sheave and a motor.
  • the motor of the hoisting machine 6 is a device for rotating and driving the sheave of the hoisting machine 6.
  • the hoisting machine 6 is provided in, for example, the machine room 4.
  • the main rope 7 is wound around the sheave of the hoist 6. One end of the main rope 7 is connected to the car 8. The other end of the main rope 7 is connected to the counterweight 9.
  • the elevator 1 may include a plurality of main ropes 7.
  • the car 8 is a device for transporting a user or the like between a plurality of floors by traveling in the vertical direction on the hoistway 3.
  • the car 8 includes a car door 10 that opens and closes so that a user or the like can get on and off.
  • the counterweight 9 is a device that balances the load applied to both sides of the sheave of the hoist 6 through the main rope 7 with the car 8.
  • the car 8 and the counterweight 9 are suspended in the hoistway 3 by the main rope 7.
  • the car 8 and the counterweight 9 travel on the hoistway 3 in opposite directions by the hoisting machine 6 winding up the main rope 7.
  • Each of the cage 8 and the counterweight 9 is an example of an elevating body.
  • a pair of car guide rails 11, a pair of counterweight guide rails 12, and a plurality of brackets 13 are provided.
  • the pair of car guide rails 11 is a pair of guide rails that guide the traveling of the car 8 on the hoistway 3. Each car guide rail 11 is arranged along the vertical direction in the hoistway 3. One car guide rail 11 is arranged on the left side of the car 8. The other car guide rail 11 is arranged on the right side of the car 8.
  • the pair of counterweight guide rails 12 is a pair of guide rails that guide the traveling of the counterweight 9 on the hoistway 3.
  • Each counterweight guide rail 12 is arranged along the vertical direction in the hoistway 3.
  • One of the counterweight guide rails 12 is arranged on the left side of the counterweight 9.
  • the other counterbalance weight guide rail 12 is arranged on the right side of the counterbalance weight 9.
  • the elevating body such as the car 8 or the counterweight 9 travels in the vertical direction along the guide rail such as the car guide rail 11 or the counterweight guide rail 12.
  • Each of the guide rails that guide the traveling of the elevating body is fixed to the hoistway 3 by a plurality of brackets 13.
  • Elevator 1 includes an earthquake detector 14 and a control panel 15.
  • the earthquake detector 14 is a part that detects the occurrence of an earthquake.
  • the seismic detector 14 is provided, for example, in the pit 5.
  • the seismic detector 14 is a P wave detector that detects an earthquake by, for example, a P wave (Primary wave).
  • the seismic detector 14 is provided, for example, in the machine room 4.
  • the earthquake detector 14 is an S wave detector that detects an earthquake by, for example, an S wave (Secondary wave).
  • the seismic detector 14 may be provided in both the pit 5 and the machine room 4.
  • the control panel 15 is a device that controls the operation of the elevator 1.
  • the control panel 15 is provided in, for example, the machine room 4.
  • the control panel 15 controls the traveling of the car 8 and the counterweight 9 by, for example, controlling the operation of the hoisting machine 6. Further, the control panel 15 manages the operation mode of the elevator 1.
  • the operation mode of the elevator 1 includes normal operation and seismic control operation.
  • the normal operation is an operation mode in which the car 8 is driven so as to answer a call or the like registered by the user.
  • the earthquake control operation is an operation mode when the occurrence of an earthquake is detected by the earthquake detector 14 in the elevator 1. In earthquake control operation, the control panel 15 stops, for example, the traveling car 8 on the nearest floor.
  • FIG. 2 is a diagram showing an example of an unbalanced load in the car 8 according to the first embodiment.
  • the basket 8 seen from the front is shown.
  • an eccentric load may occur when the user or a heavy object brought by the user rides on a position away from the center of gravity of the car 8.
  • a biased load is applied to the right side of the car 8.
  • the car 8 is tilted due to the eccentric load.
  • the central portion is, for example, a portion having a height including the center of gravity of the car 8.
  • the car 8 tilts to the right due to the eccentric load.
  • FIG. 3 is a diagram showing an example of displacement due to an eccentric load in the car 8 according to the first embodiment.
  • the vertical axis indicates the vertical position in the car 8.
  • the horizontal axis shows the horizontal displacement of the car 8 due to the eccentric load.
  • the horizontal displacement due to the eccentric load is small in the central part of the car 8.
  • the displacement in the horizontal direction due to the eccentric load increases as the distance from the center of the car 8 increases.
  • the upper and lower parts of the car 8 are displaced in opposite directions.
  • a displacement suppressing device 16 is provided in the elevating body of the elevator 1 so as to avoid such a situation.
  • the displacement suppressing device 16 is a device that suppresses the horizontal displacement of the elevating body.
  • the displacement suppressing device 16 is provided in consideration of the influence of displacement due to the inclination caused by the eccentric load so as to be able to cope with the shaking of the earthquake generated when the elevating body is inclined due to the eccentric load.
  • FIG. 4 is a front view of the car 8 according to the first embodiment.
  • the displacement suppressing device 16 is provided in the car 8.
  • the car 8 includes a car frame 17 and a plurality of guide shoes 18.
  • the car frame 17 includes an upper beam 19, a lower beam 20, and a pair of vertical columns 21.
  • the upper beam 19 is a member arranged between the left end portion and the right end portion in the upper part of the car 8.
  • the lower beam 20 is a member arranged between the left end portion and the right end portion in the lower part of the car 8.
  • the pair of vertical columns 21 are members arranged between the upper beam 19 and the lower beam 20.
  • One vertical pillar 21 is arranged at the left end of the car 8.
  • the other vertical pillar 21 is arranged at the right end of the car 8.
  • the left vertical pillar 21 is arranged along the left car guide rail 11 of the car 8.
  • the vertical pillar 21 on the right side is arranged along the car guide rail 11 on the right side of the car 8.
  • the plurality of guide shoes 18 are portions guided by a pair of car guide rails 11. Each guide shoe 18 faces one of the car guide rails 11. Each guide shoe 18 is attached to, for example, a car frame 17. Each guide shoe 18 is arranged, for example, at the left end portion or the right end portion of the upper beam 19 or the lower beam 20.
  • the displacement suppressing device 16 includes a plurality of stoppers 22.
  • Each stopper 22 is a portion that regulates the displacement of the car 8 by the car guide rail 11.
  • Each stopper 22 has, for example, a similar shape to each other.
  • Each stopper 22 is attached to one of the vertical columns 21. In each vertical column 21, for example, the same number of stoppers 22 are attached to each other.
  • the plurality of stoppers 22 are arranged at equal intervals in the vertical direction.
  • the plurality of stoppers 22 are arranged symmetrically in the vertical direction with respect to the central portion.
  • five stoppers 22 are attached as a plurality of stoppers 22.
  • an even number of stoppers 22 may be attached as a plurality of stoppers 22.
  • any of the stoppers 22 may be arranged outside the guide shoe 18 in the vertical direction. That is, any of the stoppers 22 is arranged above the guide shoe 18 arranged on the upper side of the car 8 such as the upper beam 19 or below the guide shoe 18 arranged on the lower side of the car 8 such as the lower beam 20. It may have been done. At this time, the vertical pillar 21 may extend to the outside of the guide shoe 18 in the vertical direction. Alternatively, a support supporting the stopper 22 on the outside of the guide shoe 18 may be provided in the car 8.
  • the central part of the basket 8 is an example of the first position.
  • the position above the first position in the car 8 is an example of the second position.
  • the position further above the second position in the car 8 is an example of the third position.
  • the spacing between the second and third positions is equal to the spacing between the first and second positions.
  • the vertically symmetrical position of the second position with respect to the central portion in the car 8 is an example of the symmetrical position.
  • Each stopper 22 faces the surface of the car guide rail 11 with a gap.
  • the size of the gap shown in FIG. 5 and the like is exaggerated for the sake of explanation.
  • the gaps on the surfaces of each stopper 22 and the car guide rail 11 are set according to the position of the car 8 in which the stopper 22 is provided.
  • the stopper 22 arranged at the center is an example of the first stopper arranged at the first position.
  • the stopper 22 adjacent above the stopper 22 arranged in the central portion is an example of the second stopper arranged at the second position.
  • the stopper 22 adjacent below the stopper 22 arranged in the central portion is an example of a symmetrical stopper arranged at a symmetrical position.
  • the stopper 22 arranged at the uppermost position in the car 8 is an example of the third stopper arranged at the third position.
  • the first stopper faces the surface of the car guide rail 11 with a first gap.
  • the second stopper faces the surface of the car guide rail 11 with a second gap.
  • the third stopper faces the surface of the car guide rail 11 with a third gap.
  • the second gap is a gap larger than the first gap.
  • the third gap is a gap larger than the second gap.
  • FIG. 5 is a horizontal sectional view of the car 8 according to the first embodiment.
  • FIG. 5 shows a cross-sectional view taken along the horizontal plane passing through the central portion of the car 8.
  • Each vertical pillar 21 is provided at the center in the front-rear direction at the left and right ends of the car 8.
  • Each stopper 22 faces each of the three surfaces of the front surface, the rear surface, and the left and right inner surfaces of the car guide rail 11.
  • the left and right inner side surfaces are the side surfaces on the car 8 side.
  • FIG. 6 is a horizontal sectional view of the stopper 22 according to the first embodiment.
  • a cross-sectional view taken along the horizontal plane passing through any of the stoppers 22 is shown as a representative.
  • the size of the gap between the front surface of the car guide rail 11 and the stopper 22 is smaller than the size of the gap between the left and right inner surfaces of the car guide rail 11 and the stopper 22. Further, the size of the gap between the rear surface of the car guide rail 11 and the stopper 22 is smaller than the size of the gap between the left and right inner surfaces of the car guide rail 11 and the stopper 22.
  • the size of the gap between the front surface of the car guide rail 11 and the stopper 22 is equal to the size of the gap between the rear surface of the car guide rail 11 and the stopper 22. Further, in the stoppers 22 arranged at the same height of the left and right vertical columns 21, the sizes of the left and right inner surfaces of the car guide rail 11 and the gaps between the stoppers 22 are equal to each other.
  • the eccentric load in the car 8 may occur regardless of the user or the heavy object brought by the user.
  • the eccentric load in the car 8 can be generated by roping, for example, the main rope 7.
  • the eccentric load in the car 8 may be caused by, for example, an deviation in the position where the control cable or the compensation rope is attached.
  • the size of the gap between the front surface of the car guide rail 11 and the stopper 22 may be different from the size of the gap between the rear surface of the car guide rail 11 and the stopper 22.
  • the sizes of the left and right inner surfaces of the car guide rail 11 and the gaps between the stoppers 22 may be different from each other.
  • FIG. 7 is a diagram showing an example of a gap in the displacement suppressing device 16 according to the first embodiment.
  • the vertical axis indicates the vertical position in the car 8.
  • the horizontal axis indicates the size of the gap between the car guide rail 11 and the stopper 22.
  • FIG. 7 shows the relationship between the front surface of the car guide rail 11 and the gap between the stoppers 22 and the vertical position of the stopper 22 in the car 8.
  • the difference in size between the gap of the stopper 22 arranged at a position away from the central portion of the car 8 and the gap of the stopper 22 arranged at the central portion is proportional to the distance from the central portion.
  • the distance from the central portion is, for example, the absolute value of the height difference from the central portion. That is, the sizes of the first gap, the second gap, and the third gap are related, for example, by a linear function of the distance from the central portion of the car 8.
  • the relationship between the front surface of the car guide rail 11 and the gap between the stoppers 22 and the vertical position of the stopper 22 in the car 8 is a symmetrical relationship with respect to the central portion as shown in FIG.
  • the relationship between the rear surface of the car guide rail 11 and the gap between the stoppers 22 and the vertical position of the stopper 22 in the car 8 is the same as the relationship shown in FIG. Further, the relationship between the left and right inner surfaces of the car guide rail 11 and the gap between the stoppers 22 and the vertical position of the stopper 22 in the car 8 is the same as the relationship shown in FIG.
  • the displacement suppressing device 16 can suppress the displacement of the upper part of the car 8 or the lower part of the car 8 even when the car 8 is tilted due to an eccentric load. .. As a result, the displacement suppressing device 16 can stably suppress the displacement of the car 8 due to shaking such as an earthquake even when the car 8 is tilted due to an eccentric load.
  • 8 and 9 are diagrams showing an example of an eccentric load in the car 8 according to the first embodiment. 8 and 9 show the basket 8 as viewed from above.
  • FIG. 8 an unbalanced load in the left-right direction is generated.
  • the car 8 tilts in the left-right direction.
  • the displacement suppressing device 16 suppresses the displacement of the car 8 due to shaking or the like through one of the left and right car guide rails 11.
  • FIG. 9 an unbalanced load in the front-rear direction is generated.
  • the car 8 tilts in the front-rear direction.
  • the displacement suppressing device 16 suppresses the displacement of the car 8 due to shaking or the like through both the left and right car guide rails 11. Therefore, the gap between the surface of the car guide rail 11 and the stopper 22 for suppressing the displacement in the front-rear direction can be made smaller than the gap between the surface of the car guide rail 11 and the stopper 22 for suppressing the displacement in the left-right direction.
  • the displacement suppressing device 16 may include a member that continuously connects the end portions on the side facing the car guide rail 11 in the vertical direction, for example, between the first stopper and the second stopper.
  • a part or all of the plurality of stoppers 22 may be a part of a member continuously provided on the vertical column 21 in the vertical direction.
  • the displacement suppressing device 16 may be provided on the counterweight 9 which is an elevating body. At this time, the displacement suppressing device 16 provided on the counterweight 9 acts in the same manner as the displacement suppressing device 16 provided on the car 8 to suppress the displacement of the counterweight 9.
  • the eccentric load in the counterweight 9 can be generated by roping, for example, the main rope 7.
  • the eccentric load in the counterweight 9 may be caused by, for example, an eccentricity in the position where the compensation rope is attached.
  • the displacement suppressing device 16 for the elevating body includes a first stopper and a second stopper.
  • the elevating body travels along the guide rail of the elevator 1.
  • the first stopper is provided at the first position of the elevating body.
  • the first stopper faces the guide rail with a first gap.
  • the second stopper is provided at the second position of the elevating body.
  • the second position is separated from the central portion of the elevating body in the vertical direction from the first position.
  • the second stopper faces the guide rail with a second gap.
  • the second gap is larger than the first gap.
  • the displacement suppressing device 16 suppresses the horizontal displacement of the upper part or the lower part, which is displaced more than the central part of the elevating body due to the inclination, due to shaking or the like. can.
  • the displacement suppressing device 16 can stably suppress the displacement of the elevating body due to shaking such as an earthquake even when the elevating body is tilted due to an eccentric load. That is, in the first position where the displacement due to the eccentric load is smaller than the second position, the first gap is smaller than the second gap, so that the displacement of the elevating body due to shaking such as an earthquake is stably suppressed.
  • the second gap is larger than the first gap. Therefore, even if the elevating body is tilted due to the eccentric load, the guide rail of the second stopper in normal operation Contact with is suppressed. As a result, the generation of abnormal noise, vibration, impact, etc. due to the contact between the guide rail and the stopper 22 is suppressed. Therefore, the comfort of the user in the car 8 is not easily impaired. Therefore, even when the elevating body is tilted due to an eccentric load, the displacement suppressing device 16 can both suppress the displacement of the elevating body due to shaking such as an earthquake and suppress the contact between the guide rail and the stopper 22 in normal operation. Ru.
  • the displacement suppressing device 16 is provided with a symmetrical stopper.
  • the symmetrical stopper is provided at a symmetrical position of the elevating body.
  • the symmetrical position is a position symmetrical to the second position in the vertical direction with respect to the central portion of the elevating body.
  • the symmetrical stopper faces the guide rail with a gap of the same size as the second gap.
  • the displacement suppressing device 16 can stably suppress the displacement of the elevating body due to shaking such as an earthquake even when either the upper part or the lower part is displaced so as to approach the guide rail due to the inclination due to the eccentric load. ..
  • the displacement suppressing device 16 includes a third stopper.
  • the third stopper is provided at the third position.
  • the third position is separated from the central portion of the elevating body in the vertical direction from the second position.
  • the third stopper faces the guide rail with a third gap.
  • the third gap is larger than the second gap.
  • the size of the first gap, the size of the second gap, and the size of the third gap are related by a linear function of the distance from the central part.
  • the displacement suppressing device 16 can suppress the displacement of the elevating body due to shaking or the like along the surface of the linear guide rail. Therefore, the displacement suppressing device 16 can more stably suppress the displacement of the elevating body due to shaking such as an earthquake.
  • the first stopper faces each of the three surfaces of the front surface, the rear surface, and the left and right inner surfaces of the guide rail.
  • the second stopper faces each of the three surfaces of the front surface, the rear surface, and the left and right inner surfaces of the guide rail.
  • the second gap with the front surface of the guide rail is larger than the first gap with the front surface of the guide rail.
  • the second gap between the guide rail and the rear surface is larger than the first gap between the guide rail and the rear surface.
  • the second gap between the left and right inner surfaces of the guide rail is larger than the first gap between the left and right inner surfaces of the guide rail.
  • At least one of the first gap between the front surface of the guide rail and the rear surface of the guide rail is smaller than the first gap between the inner surface and the inner surface of the guide rail.
  • at least one of the second gap between the front surface of the guide rail and the rear surface of the guide rail is smaller than the second gap between the inner surface and the inner surface of the guide rail.
  • the size of the gap that suppresses the displacement is adjusted according to the ease of tilting of the elevating body. Therefore, it is possible to avoid that the displacement is not sufficiently suppressed due to the gap being too large. Further, it is possible to prevent the stopper 22 and the guide rail from coming into contact with each other because the gap is too small. As a result, the generation of abnormal noise, vibration, impact, etc. due to the contact between the guide rail and the stopper 22 is suppressed. Therefore, the comfort of the user in the car 8 is not easily impaired.
  • the plurality of stoppers 22 arranged in the vertical direction in the elevating body such as the car 8 may be arranged at unequal intervals.
  • the plurality of stoppers 22 may be arranged so that the vertical distance from the adjacent stoppers becomes smaller as the distance from the center of the elevating body increases.
  • the vertical distance from the stopper 22 adjacent to the upper side is smaller than the vertical distance from the stopper 22 adjacent to the lower side.
  • the stopper 22 arranged below the central portion the vertical distance from the stopper 22 adjacent to the lower side is smaller than the vertical distance from the stopper 22 adjacent to the upper side.
  • the rigidity of the vertical column 21 in the horizontal direction increases as the distance from the central portion increases.
  • the vertical column 21 is not easily deformed even if it receives a reaction force from the guide rail through the stopper 22. Since the vertical column 21 is not easily deformed so as to escape from the guide rail, the effect of suppressing the displacement of the elevating body is not easily reduced in the stopper 22 provided at a position having high rigidity. Therefore, the displacement of the elevating body is efficiently suppressed at the position where the rigidity of the vertical column 21 is high by the plurality of stoppers 22 arranged so as to be denser as the distance from the central portion increases.
  • Embodiment 2 The differences between the second embodiment and the examples disclosed in the first embodiment will be described in particular detail. As for the features not described in the second embodiment, any of the features disclosed in the first embodiment may be adopted.
  • FIG. 10 is a diagram showing an example of inclination due to an eccentric load in the car 8 according to the second embodiment.
  • the basket 8 viewed from the front is shown.
  • the car guide rail 11 When the car 8 is tilted due to an eccentric load, the car guide rail 11 may be deformed due to the reaction force from the car 8.
  • FIG. 11 is a diagram showing an example of displacement due to an eccentric load in the car 8 according to the second embodiment.
  • the vertical axis indicates the vertical position in the car 8.
  • the horizontal axis shows the displacement of the car 8 due to the eccentric load in the horizontal direction and the displacement due to the deformation of the car guide rail 11.
  • the gap between the car guide rail 11 and the stopper 22 changes depending on the difference between the displacement due to the inclination of the car 8 and the displacement due to the deformation of the car guide rail 11 due to the inclination.
  • the car guide rail 11 can be curvedly deformed in the vertical direction.
  • FIG. 12 is a diagram showing an example of a gap in the displacement suppressing device 16 according to the second embodiment.
  • the vertical axis indicates the vertical position in the car 8.
  • the horizontal axis indicates the size of the gap between the car guide rail 11 and the stopper 22.
  • FIG. 12 shows the relationship between the front surface of the car guide rail 11 and the gap between the stoppers 22 and the vertical position of the stopper 22 in the car 8.
  • the difference in size between the gap of the stopper 22 arranged at a position away from the central portion in the car 8 and the gap of the stopper 22 arranged at the central portion follows a monotonically increasing function of the distance from the central portion.
  • the function is a non-linear function set in advance based on the inclination of the car 8 caused by the eccentric load and the amount of deformation of the car guide rail 11 due to the inclination.
  • the function is, for example, a convex function or a concave function related to the distance from the central part. That is, when the displacement suppressing device 16 has the first stopper, the second stopper, and the third stopper, the sizes of the first gap, the second gap, and the third gap are determined from the central portion of the car 8 by the function. It is related to the distance of.
  • the relationship between the rear surface of the car guide rail 11 and the gap between the stoppers 22 and the vertical position of the stopper 22 in the car 8 may be the same as the relationship shown in FIG. Further, the relationship between the left and right inner surfaces of the car guide rail 11 and the gap between the stoppers 22 and the vertical position of the stopper 22 in the car 8 may be the same as the relationship shown in FIG.
  • the displacement suppressing device 16 includes a third stopper.
  • the third stopper is provided at the third position.
  • the third position is separated from the central portion of the elevating body in the vertical direction from the second position.
  • the third stopper faces the guide rail with a third gap.
  • the third gap is larger than the second gap.
  • the size of the first gap, the size of the second gap, and the size of the third gap are related by a function of the distance from the central part.
  • the function is a non-linear function based on the inclination caused by the eccentric load of the elevating body and the amount of deformation of the guide rail due to the inclination.
  • the displacement suppressing device 16 can suppress the displacement of the elevating body due to shaking or the like in consideration of the deformation of the guide rail. Therefore, the displacement suppressing device 16 can stably suppress the displacement of the elevating body due to shaking such as an earthquake even when the guide rail is deformed.
  • Embodiment 3 The differences between the third embodiment and the examples disclosed in the first embodiment or the second embodiment will be described in particular detail. As for the features not described in the third embodiment, any of the features disclosed in the first embodiment or the second embodiment may be adopted.
  • FIG. 13 is a top view of the stopper 22 according to the third embodiment. In FIG. 13, the stopper 22 seen from above is shown.
  • each of the plurality of stoppers 22 including the first stopper, the second stopper, the third stopper, the symmetrical stopper, and the like includes one or more sets of the shoe 23 and the actuator 24.
  • the stopper 22 includes three sets of the shoe 23 and the actuator 24. In any one of the three sets, the shoe 23 faces the front surface of the car guide rail 11. In the other one of the three sets, the shoe 23 faces the rear surface of the car guide rail 11. In the remaining one of the three sets, the shoe 23 faces the left and right inner surfaces of the car guide rail 11.
  • the actuator 24 changes the gap between the car guide rail 11 and the shoe 23 by moving the shoe 23.
  • any one or two of the pair of the shoe 23 and the actuator 24 may be omitted.
  • Each set of shoes 23 in the first stopper is an example of the first shoe.
  • the car guide rail 11 and the first shoe face each other with a first gap.
  • Each set of actuators 24 in the first stopper is an example of the first actuator.
  • Each set of shoes 23 in the second stopper is an example of a second shoe.
  • the car guide rail 11 and the second shoe face each other with a second gap.
  • Each set of actuators 24 in the second stopper is an example of a second actuator.
  • FIG. 14 is a block diagram of the displacement suppressing device 16 according to the third embodiment.
  • the basket 8 viewed from the front is shown.
  • a weighing device 25 is provided in the basket 8.
  • the weighing device 25 is provided at the bottom of the car 8.
  • the weighing device 25 is an example of an unbalanced load measuring unit that measures an unbalanced load in the car 8.
  • the weighing device 25 is equipped with a function of outputting the measured eccentric load to an external device.
  • the displacement suppressing device 16 includes a control unit 26.
  • the control unit 26 is a part that controls the operation of the actuator 24 in each stopper 22.
  • the control unit 26 is provided, for example, on the upper part of the car 8.
  • the control unit 26 may be mounted on the control panel 15 of the elevator 1, for example.
  • the displacement suppressing device 16 may be provided with a separate control unit 26 corresponding to one-to-one for each stopper 22.
  • the displacement suppression device 16 may include individual control units 26 corresponding to one-to-one in each actuator 24.
  • the control unit 26 is connected to an eccentric load measuring unit such as a weighing device 25 so that the measurement result of the eccentric load of the car 8 can be acquired.
  • the weighing device 25 measures the eccentric load in the car 8.
  • the weighing device 25 outputs the measured eccentric load to the control unit 26.
  • the control unit 26 calculates the inclination of the car 8 based on the eccentric load input from the weighing device 25.
  • the control unit 26 calculates the change in the gap between the stopper 22 and the car guide rail 11 according to the calculated inclination of the car 8. Based on the calculated change in the clearance, the control unit 26 operates each actuator 24 so that the clearance between the stopper 22 and the car guide rail 11 falls within a preset range.
  • the range is a preset range so that the displacement of the car 8 due to shaking such as an earthquake can be suppressed by the car guide rail 11.
  • each actuator 24 maintains the gap between the car guide rail 11 and each shoe 23 in a narrow state regardless of the measurement result of the eccentric load by the weighing device 25. As a result, the displacement of the car 8 due to the shaking of the earthquake or the like is suppressed through the car guide rail 11.
  • the car 8 may be provided with an inclination measuring unit (not shown).
  • the inclination measuring unit is a part that measures the inclination of the car 8.
  • the inclination measuring unit is arranged, for example, in the upper part or the lower part of the car 8.
  • the tilt measuring unit includes, for example, a tilt sensor, an acceleration sensor, a gyro sensor, or the like.
  • the inclination measuring unit is equipped with a function of outputting the measurement result of the inclination of the car 8.
  • control unit 26 calculates the change in the gap between the stopper 22 and the car guide rail 11 according to the inclination of the car 8 input from the inclination measurement unit. Based on the calculated change in the clearance, the control unit 26 operates each actuator 24 so that the clearance between the shoe 23 of each stopper 22 and the car guide rail 11 falls within a preset range.
  • each actuator 24 maintains the gap between the car guide rail 11 and each shoe 23 in a narrow state regardless of the inclination measurement result by the inclination measuring unit. As a result, the displacement of the car 8 due to the shaking of the earthquake or the like is suppressed through the car guide rail 11.
  • the car 8 may be provided with a load cell or the like (not shown).
  • the load meter is provided on, for example, at least one of the guide shoes 18.
  • the load meter is a device that measures the horizontal reaction force from the car guide rail 11 received by the guide shoe 18. Since the horizontal reaction force received by the guide shoe 18 depends on the inclination of the car 8, the inclination of the entire car frame 17 is measured by the load meter. That is, the load meter functions as another example of the inclination measuring unit. Since the inclination of the entire car frame 17 is measured by the load system, the inclination caused by, for example, the deviation of the position where the control cable or the compensation rope is attached is also measured with high accuracy.
  • FIG. 15 is a block diagram of the displacement suppressing device 16 according to the first modification of the third embodiment.
  • the basket 8 seen from the front is shown.
  • a camera 27 is provided in the car 8.
  • the camera 27 is provided inside the car 8.
  • the camera 27 calculates the eccentric load in the car 8 by image recognition of the image inside the car 8 taken.
  • the camera 27 is an example of an unbalanced load measuring unit that measures an unbalanced load in the car 8.
  • the control unit 26 calculates the inclination of the car 8 based on the information of the eccentric load input from the camera 27, which is an example of the eccentric load measuring unit.
  • the control unit 26 operates each actuator 24 according to the calculated inclination of the car 8.
  • FIG. 16 is a block diagram of the displacement suppressing device 16 according to the second modification of the third embodiment. In FIG. 16, the stopper 22 seen from above is shown.
  • the displacement suppressing device 16 includes a gap measuring unit 28.
  • the gap measuring unit 28 is a portion that measures the gap between the car guide rail 11 and the stopper 22.
  • the gap measuring unit 28 measures the gap for at least one of the plurality of stoppers 22 including the first stopper, the second stopper, the third stopper, the symmetrical stopper, and the like. In this example, the gap measuring unit 28 measures the gap for the first stopper and the second stopper.
  • the gap measuring unit 28 has a plurality of distance sensors 29.
  • the two distance sensors 29 correspond to the first stopper.
  • One distance sensor 29 measures the gap between the shoe 23 facing the front surface of the car guide rail 11 and the front surface.
  • the other distance sensor 29 measures the gap between the shoe 23 facing the left and right inner side surfaces of the car guide rail 11 and the inner side surface.
  • the plurality of distance sensors 29 of the gap measuring unit 28 include two distance sensors 29 that similarly measure the gap corresponding to the second stopper.
  • the gap measuring unit 28 outputs the size of each of the gaps measured by the plurality of distance sensors 29 to the control unit 26.
  • the control unit 26 is provided with a gap between the shoe 23 of each stopper 22 and the car guide rail 11 so as to be within a preset range according to the size of the gap input from the gap measurement unit 28. Operate the actuator 24.
  • the control unit 26 has a shoe facing the rear surface of the car guide rail 11 based on a measured value of the size of the gap between the shoe 23 facing the front surface of the car guide rail 11 and the front surface. The size of the gap between the 23 and the rear surface may be estimated.
  • the control unit 26 sets each actuator 24 so that the gap between the shoe 23 of each stopper 22 and the car guide rail 11 falls within a preset range according to the estimated size of the gap. Make it work.
  • control unit 26 may estimate the inclination of the car 8 based on the size of the gap measured by the distance sensor 29 provided on any of the stoppers 22. At this time, the control unit 26 operates each actuator 24 based on the estimated inclination. Here, the control unit 26 may operate each actuator 24 based on the estimated inclination of the stopper 22 for which the gap measurement unit 28 has not measured the size of the gap.
  • each actuator 24 maintains the gap between the car guide rail 11 and each shoe 23 in a narrow state regardless of the measurement result of the gap by the gap measuring unit 28. As a result, the displacement of the car 8 due to the shaking of the earthquake or the like is suppressed through the car guide rail 11.
  • the control cable or compensation rope attached to the car 8 varies depending on the position of the car 8. Therefore, for example, when an unbalanced load is generated in the car 8 due to an unbalanced position where a control cable or the like is attached, the unbalanced load of the car 8 also fluctuates depending on the position of the car 8.
  • the control unit 26 may estimate the eccentric load and inclination of the car 8 or the gap between the car guide rail 11 and the stopper 22 based on the position of the car 8.
  • the control unit 26 operates each actuator 24 at the position of the car 8 according to the estimation result.
  • the displacement suppressing device 16 when the displacement suppressing device 16 is provided on the counterweight 9 which is an elevating body, wiring for supplying power to the displacement suppressing device 16 and performing signal communication may be connected to the counterweight 9.
  • the counterweight 9 may be equipped with a battery or the like that supplies electric power to the displacement suppressing device 16.
  • the displacement suppression device 16 may receive power supply and signal communication, for example, wirelessly.
  • the first stopper includes a first shoe and a first actuator.
  • the first shoe faces the guide rail with a first gap.
  • the first actuator changes the size of the first gap by moving the first shoe.
  • the second stopper includes a second shoe and a second actuator.
  • the second shoe faces the guide rail with a second gap.
  • the second actuator changes the size of the second gap by moving the second shoe.
  • the size of the gap is variable depending on the position, eccentric load, tilt, etc. of the elevating body. Is adjusted. As a result, even when the state of the elevating body such as an eccentric load fluctuates due to the user getting on and off, the displacement of the elevating body due to the shaking of the earthquake is suppressed according to the fluctuating state of the elevating body.
  • the unbalanced load measuring unit measures the unbalanced load of the elevating body.
  • the first actuator changes the size of the first gap according to the inclination of the elevating body caused by the eccentric load measured by the eccentric load measuring unit.
  • the second actuator changes the size of the second gap according to the inclination of the elevating body caused by the eccentric load measured by the eccentric load measuring unit.
  • the inclination measuring unit measures the inclination of the elevating body.
  • the first actuator changes the size of the first gap according to the inclination of the elevating body measured by the inclination measuring unit.
  • the second actuator changes the size of the second gap according to the inclination of the elevating body measured by the inclination measuring unit.
  • the displacement suppressing device 16 includes a gap measuring unit 28.
  • the gap measuring unit 28 measures the size of at least one of the first gap and the second gap.
  • the first actuator changes the size of the first gap according to the size of the gap measured by the gap measuring unit 28.
  • the second actuator changes the size of the second gap according to the size of the gap measured by the gap measuring unit 28.
  • the size of the gap is variable according to the actually measured state of the elevating body, so that the size of the gap can be adjusted with higher accuracy in normal operation.
  • the size of the gap can be adjusted to reflect the state such as deformation of the guide rail.
  • FIG. 17 is a hardware configuration diagram of a main part of the displacement suppressing device 16 according to the third embodiment.
  • Each function of the displacement suppression device 16 can be realized by a processing circuit.
  • the processing circuit includes at least one processor 100a and at least one memory 100b.
  • the processing circuit may include at least one dedicated hardware 200 with or as a substitute for the processor 100a and the memory 100b.
  • each function of the displacement suppressing device 16 is realized by software, firmware, or a combination of software and firmware. At least one of the software and firmware is written as a program. The program is stored in the memory 100b. The processor 100a realizes each function of the displacement suppressing device 16 by reading and executing the program stored in the memory 100b.
  • the processor 100a is also referred to as a CPU (Central Processing Unit), a processing device, an arithmetic unit, a microprocessor, a microcomputer, and a DSP.
  • the memory 100b is composed of, for example, a non-volatile or volatile semiconductor memory such as a RAM, a ROM, a flash memory, an EPROM, or an EEPROM.
  • the processing circuit includes the dedicated hardware 200
  • the processing circuit is realized by, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof.
  • Each function of the displacement suppression device 16 can be realized by a processing circuit. Alternatively, each function of the displacement suppressing device 16 can be collectively realized by a processing circuit. For each function of the displacement suppression device 16, a part may be realized by the dedicated hardware 200, and the other part may be realized by software or firmware. As described above, the processing circuit realizes each function of the displacement suppressing device 16 by the dedicated hardware 200, software, firmware, or a combination thereof.
  • the displacement suppression device according to the present disclosure can be applied to an elevator body.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
PCT/JP2020/026298 2020-07-03 2020-07-03 エレベーターの昇降体の変位抑制装置 WO2022003984A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2020/026298 WO2022003984A1 (ja) 2020-07-03 2020-07-03 エレベーターの昇降体の変位抑制装置
JP2022533019A JP7435780B2 (ja) 2020-07-03 2020-07-03 エレベーターの昇降体の変位抑制装置
CN202080102253.3A CN115803277A (zh) 2020-07-03 2020-07-03 电梯的升降体的位移抑制装置

Applications Claiming Priority (1)

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PCT/JP2020/026298 WO2022003984A1 (ja) 2020-07-03 2020-07-03 エレベーターの昇降体の変位抑制装置

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JP (1) JP7435780B2 (enrdf_load_stackoverflow)
CN (1) CN115803277A (enrdf_load_stackoverflow)
WO (1) WO2022003984A1 (enrdf_load_stackoverflow)

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CN119284671B (zh) * 2024-12-11 2025-05-06 菱王电梯有限公司 重载电梯及重载电梯的控制方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50149036A (enrdf_load_stackoverflow) * 1974-05-22 1975-11-28
JPS5110769U (enrdf_load_stackoverflow) * 1974-07-12 1976-01-26
JPS53131641A (en) * 1977-04-19 1978-11-16 Fujitec Co Ltd Roller guide apparatus for elevator cage
JP2001139255A (ja) * 1999-11-16 2001-05-22 Otis Elevator Co エレベータの案内装置
JP2006131385A (ja) * 2004-11-09 2006-05-25 Hitachi Ltd エレベーター
JP2011037547A (ja) * 2009-08-07 2011-02-24 Mitsubishi Electric Corp エレベータのガイドシュー据付調整方法
JP2015137170A (ja) * 2014-01-23 2015-07-30 株式会社日立ビルシステム エレベータ装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50149036A (enrdf_load_stackoverflow) * 1974-05-22 1975-11-28
JPS5110769U (enrdf_load_stackoverflow) * 1974-07-12 1976-01-26
JPS53131641A (en) * 1977-04-19 1978-11-16 Fujitec Co Ltd Roller guide apparatus for elevator cage
JP2001139255A (ja) * 1999-11-16 2001-05-22 Otis Elevator Co エレベータの案内装置
JP2006131385A (ja) * 2004-11-09 2006-05-25 Hitachi Ltd エレベーター
JP2011037547A (ja) * 2009-08-07 2011-02-24 Mitsubishi Electric Corp エレベータのガイドシュー据付調整方法
JP2015137170A (ja) * 2014-01-23 2015-07-30 株式会社日立ビルシステム エレベータ装置

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