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CN-115803277-B - Displacement suppressing device for elevator lifting body

CN115803277BCN 115803277 BCN115803277 BCN 115803277BCN-115803277-B

Abstract

Provided is a displacement suppression device for an elevator lifting body, which can stably suppress displacement even when the lifting body is inclined due to a bias load. The displacement suppression device (16) is provided with a1 st stop and a2 nd stop. The lifting body runs along the guide rail of the elevator (1). The 1 st stop piece is arranged at the 1 st position of the lifting body. The 1 st stopper is opposed to the guide rail with a1 st gap. The 2 nd stop piece is arranged at the 2 nd position of the lifting body. The 2 nd position is further away from the central portion of the lifting body than the 1 st position in the up-down direction. The 2 nd stopper is opposed to the guide rail with a2 nd gap therebetween. The 2 nd gap is larger than the 1 st gap.

Inventors

  • Flat in the mountains
  • TONO KENJI
  • Gong Chuanjian

Assignees

  • 三菱电机株式会社

Dates

Publication Date
20260505
Application Date
20200703

Claims (16)

  1. 1. A displacement suppression device for an elevator lifting body, wherein the displacement suppression device for the elevator lifting body comprises: A 1 st stopper provided at a 1 st position where a central portion in a vertical direction of a lifting body traveling along a guide rail of an elevator is located, and facing the guide rail with a 1 st gap therebetween; a 2 nd stopper provided at a 2 nd position of the lifting body and opposed to the guide rail with a 2 nd gap larger than the 1 st gap, the 2 nd position being apart from the 1 st position in a vertical direction, and And a symmetrical stopper provided at a symmetrical position of the lifting body with respect to the 1 st position and symmetrical to the 2 nd position in the up-down direction, and facing the guide rail with a gap having the same size as the 2 nd gap.
  2. 2. The displacement suppression device for the lifting body of an elevator according to claim 1, wherein, The displacement suppression device for the elevator lifting body comprises a 3 rd stopper arranged at a 3 rd position of the lifting body and opposite to the guide rail with a 3 rd gap larger than the 2 nd gap, wherein the 3 rd position is further away from the 1 st position than the 2 nd position in the up-down direction, The size of the 1 st gap, the size of the 2 nd gap, and the size of the 3 rd gap are related to each other by a function of 1 st order from the center portion.
  3. 3. The displacement suppression device for the lifting body of an elevator according to claim 1, wherein, The displacement suppression device for the elevator lifting body comprises a 3 rd stopper arranged at a 3 rd position of the lifting body and opposite to the guide rail with a 3 rd gap larger than the 2 nd gap, wherein the 3 rd position is further away from the 1 st position than the 2 nd position in the up-down direction, The size of the 1 st gap, the size of the 2 nd gap, and the size of the 3 rd gap are related to each other by a nonlinear function of the distance from the center portion, the nonlinear function being a function based on a tilt due to a bias load of the elevating body and an amount of deformation of the guide rail caused by the tilt.
  4. 4. The displacement suppression device for the lifting body of an elevator according to claim 1, wherein, The displacement suppression device for the lifting body of the elevator comprises a plurality of stoppers including the 1 st stopper and the 2 nd stopper, The plurality of stoppers are arranged in the up-down direction in the elevating body, and are arranged such that the farther from the 1 st position, the smaller the vertical interval between the stopper and the adjacent stopper.
  5. 5. The displacement suppression device for the lifting body of an elevator according to claim 2, wherein, The displacement suppression device for the lifting body of the elevator comprises a plurality of stoppers including the 1 st stopper and the 2 nd stopper, The plurality of stoppers are arranged in the up-down direction in the elevating body, and are arranged such that the farther from the 1 st position, the smaller the vertical interval between the stopper and the adjacent stopper.
  6. 6. The displacement suppression device for the lifting body of an elevator according to claim 3, wherein, The displacement suppression device for the lifting body of the elevator comprises a plurality of stoppers including the 1 st stopper and the 2 nd stopper, The plurality of stoppers are arranged in the up-down direction in the elevating body, and are arranged such that the farther from the 1 st position, the smaller the vertical interval between the stopper and the adjacent stopper.
  7. 7. The displacement suppression device for the lifting body of an elevator according to any one of claims 1 to 6, wherein, The 1 st stopper includes: A1 st shoe facing the guide rail with the 1 st gap therebetween, and A1 st actuator that changes the size of the 1 st gap by moving the 1 st shoe, The 2 nd stopper includes: A second shoe facing the guide rail with the second gap therebetween, and And a2 nd actuator that changes the size of the 2 nd gap by moving the 2 nd shoe.
  8. 8. The displacement suppression device for the lifting body of an elevator according to claim 7, wherein, The 1 st actuator changes the size of the 1 st gap according to the inclination of the lifting body due to the partial load measured by the partial load measuring part which measures the partial load of the lifting body, The 2 nd actuator changes the size of the 2 nd gap according to the inclination of the lifting body due to the offset load measured by the offset load measuring section.
  9. 9. The displacement suppression device for the lifting body of an elevator according to claim 7, wherein, The 1 st actuator changes the size of the 1 st gap according to the tilt of the lifting body measured by a tilt measuring section that measures the tilt of the lifting body, The 2 nd actuator changes the size of the 2 nd gap according to the tilt of the lifting body measured by the tilt measuring section.
  10. 10. The displacement suppression device for the lifting body of an elevator according to claim 7, wherein, The displacement suppression device for the elevator lifting body comprises a gap measurement part for measuring the size of at least one of the 1 st gap and the 2 nd gap, The 1 st actuator changes the size of the 1 st gap according to the size of the gap measured by the gap measuring section, The 2 nd actuator changes the size of the 2 nd gap according to the size of the gap measured by the gap measuring section.
  11. 11. The displacement suppression device of the lifting body of an elevator according to any one of claims 1 to 6 and 8 to 10, wherein, The 1 st stopper is opposed to each of three surfaces of a front surface, a rear surface, and left and right inner surfaces of the guide rail, The 2 nd stopper is opposite to each of the three surfaces of the front surface, the rear surface and the left and right inner surfaces of the guide rail, The 2 nd gap with the front surface of the guide rail is larger than the 1 st gap with the front surface of the guide rail, The 2 nd gap with the rear surface of the guide rail is larger than the 1 st gap with the rear surface of the guide rail, The 2 nd gap between the left and right inner side surfaces of the guide rail is larger than the 1 st gap between the left and right inner side surfaces of the guide rail.
  12. 12. The displacement suppression device for the lifting body of an elevator according to claim 7, wherein, The 1 st stopper is opposed to each of three surfaces of a front surface, a rear surface, and left and right inner surfaces of the guide rail, The 2 nd stopper is opposite to each of the three surfaces of the front surface, the rear surface and the left and right inner surfaces of the guide rail, The 2 nd gap with the front surface of the guide rail is larger than the 1 st gap with the front surface of the guide rail, The 2 nd gap with the rear surface of the guide rail is larger than the 1 st gap with the rear surface of the guide rail, The 2 nd gap between the left and right inner side surfaces of the guide rail is larger than the 1 st gap between the left and right inner side surfaces of the guide rail.
  13. 13. The displacement suppression device for the lifting body of an elevator according to claim 11, wherein, At least one of the 1 st gap with the front surface of the guide rail and the 1 st gap with the rear surface of the guide rail is smaller than the 1 st gap with the left and right inner side surfaces of the guide rail.
  14. 14. The displacement suppression device for the lifting body of an elevator according to claim 12, wherein, At least one of the 1 st gap with the front surface of the guide rail and the 1 st gap with the rear surface of the guide rail is smaller than the 1 st gap with the left and right inner side surfaces of the guide rail.
  15. 15. The displacement suppression device for the lifting body of an elevator according to claim 11, wherein, At least one of the 2 nd gap with the front surface of the guide rail and the 2 nd gap with the rear surface of the guide rail is smaller than the 2 nd gap with the left and right inner side surfaces of the guide rail.
  16. 16. The displacement suppression device for the lifting body of an elevator according to any one of claims 12 to 14, wherein, At least one of the 2 nd gap with the front surface of the guide rail and the 2 nd gap with the rear surface of the guide rail is smaller than the 2 nd gap with the left and right inner side surfaces of the guide rail.

Description

Displacement suppressing device for elevator lifting body Technical Field The present invention relates to a displacement suppression device for an elevator lifting body. Background Patent document 1 discloses an example of an elevator. In an elevator, a seismic panel is provided in a car. The seismic plates cooperate with the guide rails to inhibit displacement of the car in the lateral direction. Prior art literature Patent literature Patent document 1 International publication No. 2005/035419 Disclosure of Invention Problems to be solved by the invention However, in the elevator of patent document 1, the seismic panel is provided at one place on the upper part of the car for one guide rail. Therefore, when the lifting body such as the car is inclined due to a bias load or the like, the effect of suppressing displacement may vary. The present invention has been made to solve such problems. The invention provides a displacement suppression device for an elevator lifting body, which can stably suppress displacement even when the lifting body is inclined due to a bias load. Means for solving the problems The displacement suppression device is provided with a1 st stopper which is arranged at a1 st position of a lifting body which runs along a guide rail of an elevator and is opposite to the guide rail with a1 st gap therebetween, and a2 nd stopper which is arranged at a2 nd position of the lifting body and is opposite to the guide rail with a2 nd gap which is larger than the 1 st gap therebetween, wherein the 2 nd position is further away from the central part of the lifting body than the 1 st position in the up-down direction. Effects of the invention In the displacement suppressing device of the present invention, the displacement of the lifting body can be stably suppressed even when the lifting body is inclined by the biasing load. Drawings Fig. 1 is a structural diagram of an elevator according to embodiment 1. Fig. 2 is a diagram showing an example of a bias load in the car of embodiment 1. Fig. 3 is a diagram showing an example of displacement due to a bias load in the car of embodiment 1. Fig. 4 is a front view of the car of embodiment 1. Fig. 5 is a horizontal cross-sectional view of the car of embodiment 1. Fig. 6 is a horizontal cross-sectional view of the stopper of embodiment 1. Fig. 7 is a diagram showing an example of the gap in the displacement suppression device of embodiment 1. Fig. 8 is a diagram showing an example of a bias load in the car according to embodiment 1. Fig. 9 is a diagram showing an example of a bias load in the car of embodiment 1. Fig. 10 is a diagram showing an example of inclination caused by a bias load in the car of embodiment 2. Fig. 11 is a diagram showing an example of displacement due to a bias load in the car of embodiment 2. Fig. 12 is a diagram showing an example of the gap in the displacement suppression device of embodiment 2. Fig. 13 is a plan view of the stopper according to embodiment 3. Fig. 14 is a structural diagram of a displacement suppression device according to embodiment 3. Fig. 15 is a structural diagram of a displacement suppression device according to modification 1 of embodiment 3. Fig. 16 is a structural diagram of a displacement suppression device according to modification 2 of embodiment 3. Fig. 17 is a hardware configuration diagram of a main part of the displacement suppression device according to embodiment 3. Detailed Description The mode for carrying out the invention will be described with reference to the accompanying drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals, and repetitive description thereof will be appropriately simplified or omitted. Embodiment 1. Fig. 1 is a structural diagram of an elevator 1 according to embodiment 1. The elevator 1 is provided 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 multiple floors. In the building 2, a machine room 4 is provided at an upper portion of a hoistway 3. In the building 2, a pit 5 is provided at the bottom of the hoistway 3. The elevator 1 includes a hoisting machine 6, main ropes 7, a car 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 rotationally driving the sheave of the hoisting machine 6. The hoisting machine 6 is provided in the machine room 4, for example. The main rope 7 is wound around a sheave of the hoisting machine 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 a counterweight 9. The elevator 1 may also be provided with a plurality of main ropes 7. The car 8 is a device that travels in the vertical direction in the hoistway 3 to convey users and the like between a plurality of floors. The car 8 includes a car door 10, and the car door 10 is opened and closed so as to be accessible to a user or the l