JP5528592B1 - Elevator equipment - Google Patents

Abstract

[PROBLEMS] To circulate an adjustment weight and to operate in a state in which the weight on the side of the car and the counterweight during operation is close to balance, achieving energy saving and generating a drop impact when the adjustment weight is taken in and out. To prevent.
In a lift type elevator apparatus, a load detection unit for detecting a load of a ride car, an adjustment weight for adjusting a balance between the ride car and a counterweight, and the adjustment weight are accommodated. An adjustment weight storage unit 15, a guide 14 for guiding the adjustment weight 13 in the vertical direction, an electromagnet 16 provided on the ride basket 7 for attaching and detaching the adjustment weight 13, and an electromagnet moving unit for moving the electromagnet 16 An electromagnet movable lane that guides the electromagnet 16 in the horizontal direction, and an electromagnet control section that controls energization of the electromagnet 16 and the electromagnet movable section based on a signal from the load detection section.
[Selection] Figure 1

Description

  The present embodiment relates to an elevator apparatus that performs overbalance adjustment.

  In recent years, there has been an increasing demand for improved elevator efficiency and energy savings, and there is an elevator system that adjusts the overbalance by changing the mass by loading and unloading the adjustment weight on the passenger car according to the loading and unloading situation and usage frequency of the car. (See, for example, Patent Documents 1 and 2).

JP 2008-68997 A JP 2011-157159 A

  Such an elevator apparatus has a structure that allows an adjustment weight (adjustment weight) to be taken in and out between the accommodating portion provided on the hoistway side and the accommodating portion provided on the ride car side. When doing so, a drop impact on the car may occur. Also, when going to work, the load on the car's loading load fluctuates drastically, and there is a high possibility that the loading and storage of the adjustment weight will be biased, and it is necessary to circulate the adjustment weight.

  The present invention has been made in view of the above problems, and its purpose is to circulate the adjustment weight and enable operation in a state in which the masses of the ride basket side and the counterweight side during operation are close to balance, thereby saving energy. It is providing the elevator apparatus which can achieve this. It is another object of the present invention to provide an elevator apparatus that prevents the occurrence of a drop impact when the adjustment weight is taken in and out.

  The elevator apparatus of the present embodiment includes a hoisting sheave around which a rope is wound, a hoisting motor that rotationally drives the hoisting sheave, a riding basket that is connected to one end of the rope, and an other end of the rope. The counter weight to be connected, a load detection unit for detecting the load of the ride car, an adjustment weight for adjusting the balance of the car and the counter weight, an adjustment weight storage unit for storing the adjustment weight, and the adjustment A guide for guiding a weight in the vertical direction; an electromagnet provided in the ride basket for attaching and detaching the adjustment weight; an electromagnet movable portion for moving the electromagnet; an electromagnet movable lane for guiding the electromagnet in a horizontal direction; An electromagnet control unit that controls energization of the electromagnet and the electromagnet movable unit based on a signal from a load detection unit. It is.

  According to the elevator apparatus of the present embodiment, the adjustment weight is circulated so that the operation can be performed in a state where the weight on the side of the passenger car and the counterweight is close to balance during operation, and energy saving is achieved, and the adjustment weight is taken in and out. It is possible to prevent the occurrence of a drop impact during the process.

1 is an overall schematic diagram of an elevator apparatus according to an embodiment. The partial schematic which shows the elevator apparatus seen from the A direction in FIG. The partial schematic which shows an elevator apparatus from the B direction in FIG. 2A. The partial schematic diagram which shows the guide and adjustment weight storage part in FIG. The figure which shows operation | movement of the elevator apparatus of this embodiment. The partial schematic which shows the adjustment part of other embodiment of this invention.

  Hereinafter, the elevator apparatus according to the present embodiment will be described in detail with reference to the drawings.

  FIG. 1 is a schematic configuration diagram of an elevator apparatus according to the present embodiment. Although the number of floors is 4 in FIG. 1, the number of floors is not limited.

  As shown in FIG. 1, in the elevator apparatus 1 according to the present embodiment, a hoisting motor 4 is installed in a machine room 3 above the hoistway 2, and a rope 6 is wound around a hoisting sheave 5 of the hoisting motor 4. It has been. A ride basket 7 is connected to one end of the rope 6, and a counterweight (C / W) 8 is connected to the other end. The riding basket 7 and the counterweight 8 are raised and lowered while being guided by two pairs of guide rails installed in the hoistway 2. The ride car 7 is provided with a load detection unit 7 a that detects a load loaded on the ride car 7, and is connected via a tail cord 9 to a control unit that controls the overall operation of the elevator apparatus. Further, the floors 10a, 10b, 10c, and 10d of the hoistway 2 are opened for people to get on and off the car 7 and a landing door 11 is provided. In FIG. 1, the hoisting machine 4 is installed in the machine room 3, but the machine room without the hoisting machine 4 installed in a part of the hoistway 2 (machine room-less) is used. Also good.

  The elevator apparatus 1 includes an adjusting unit 12 that adjusts the total mass of the car 7 during operation and the mass on the counterweight 8 side to be balanced.

  As shown in FIGS. 2A, 2 </ b> B, and 3, the adjustment unit 12 includes an adjustment weight 13 that adjusts the mass of the ride basket 7 and a guide 14 that guides the vertical movement of the adjustment weight 13 when attached to the ride basket 7. And an adjustment weight storage portion 15 for storing the adjustment weight 13 that is not used, and an electromagnet 16 that attaches the adjustment weight 13 to the car 7.

  The adjustment weight 13 is a member that can be attached to and detached from the electromagnet by turning ON / OFF the power supply to the electromagnet. The adjustment weight 13 is stored in the adjustment weight storage portion 15 when not used as shown in FIG. The position of the adjustment weight 13 is always detected by the adjustment weight position detection unit of the control unit. In addition, the mass of the adjustment weight 13 can be suitably selected according to the adjustment unit of OB. The guide 14 is formed vertically in the vertical direction along the side wall of the hoistway 2 so that the adjustment weight 13 attached to the riding basket 7 can move in the vertical direction (arrow S). The adjustment weight storage unit 15 is provided at a position corresponding to a position where the riding basket 7 on each floor of the hoistway 2 is landed, and is connected to the guide 14. The adjustment weight storage unit 15 extends perpendicularly to the guide 14 extending in the up-down direction, and the surface facing the ride basket 7 is open.

  As shown in FIGS. 2A and 2B, the electromagnet 16 is provided on the surface of the riding basket 7 that faces the opening surface of the adjustment weight storage portion 15. The electromagnet 16 is energized when the adjustment weight 13 is used. The adjustment weight 13 is attached / detached by ON / OFF. The electromagnet 16 is integrated with an electromagnet moving portion 17 (actuator portion) that moves the electromagnet 16. The movement of the electromagnet movable portion 17 is guided to the electromagnet movable lane 18. The electromagnet movable lane 18 is provided horizontally over a region facing the opening surface of the adjustment weight storage portion 15 of the ride basket 7. In other words, the electromagnet 16 can be moved by the electromagnet movable portion 17 from a position corresponding to the adjustment weight storage portion 15 in the riding basket 7 to a position corresponding to the guide 14. ON / OFF of energization of the electromagnet 16 and movement of the electromagnet movable portion 17 to the above position are controlled by the electromagnet control portion 19.

  The electromagnet control unit 19 controls the electromagnet 16 and the electromagnet movable unit 17 based on the mass of the riding basket 7 detected by the load detection unit 7a. The electromagnet 16, the electromagnet movable portion 17, and the electromagnet control portion 19 are connected to a backup power source that backs up when the normal power source is cut off. Can be prevented from being cut off, and the adjustment weight 13 can be prevented from falling off the riding basket 7.

  Further, when the electromagnet control unit 19 operates the electromagnet 16 and the electromagnet movable unit 17, the adjustment weight 13 attached to the electromagnet 16 is not at the position of the guide 14, that is, the vertical movement is restricted. The adjustment weight 13 staying in the adjustment weight storage unit 15 is allowed to move up and down in synchronization with the ride basket 7 by prohibiting the operation of the ride basket 7. Can be prevented.

  Hereinafter, operation | movement of the elevator apparatus 1 of this embodiment is demonstrated with reference to FIG.

  First, it is determined whether or not the riding basket 7 is a stop floor (A1). If it is a stop floor, it is determined whether or not the mass on the side of the riding cage 7 is smaller than the mass on the side of the counterweight (C / W) 8 (A2). When the mass on the side of the riding cage 7 is smaller than the mass on the counterweight (C / W) 8 side, the electromagnet 16 is energized and moved by the electromagnet movable unit 17 in accordance with a command from the control unit. The adjustment weight 13 accommodated in the adjustment weight storage portion 15 in synchronization with the movement of the electromagnet 16 by the electromagnet movable portion 17 moves from the adjustment weight storage portion 15 to the guide 14 and is connected to the electromagnet 16 (A3). As a result, the mass on the side of the ride basket 7 can be increased by the amount of the adjustment weight 13, and OB can be brought close to balance.

  On the other hand, after the ride basket 7 arrives at the stop floor, the adjustment weight 13 becomes unnecessary, that is, the mass on the ride basket 7 side is larger than the mass on the counterweight (C / W) 8 side (A4). The electromagnet 16 is moved by the electromagnet movable portion 17 from the position corresponding to the guide 14 of the riding basket 7 to the position corresponding to the adjustment weight storage portion 15, so that the adjustment weight 13 is synchronized with the movement of the electromagnet 16. To the adjustment weight storage unit 15. Thereafter, when the energization of the electromagnet 16 is turned off (cut off), the adjustment weight 13 stored in the adjustment weight storage unit 15 is separated from the electromagnet 16 (A5). As a result, power running operation is eliminated, operation in a state close to balance can be realized, and energy saving can be achieved.

  As another embodiment, as shown in FIG. 5, the adjustment weight storage unit 15 is further extended sideways and the movable range of the electromagnet movable unit 17 on the side of the car 7 is extended by the extension of the adjustment weight storage unit 15. In addition, by adopting a configuration in which a plurality of adjustment weights 13 can be accommodated, for example, when driving is biased at the time of going to and from work, the adjustment weights 13 can be continuously loaded or unloaded on the same floor. Further, by providing a plurality of electromagnet movable lanes 19, it is possible to further load the adjustment weights 13 on the same floor. Furthermore, by providing a platform that protrudes from the ride basket 7 to the guide 15 as a loading platform on which the adjustment weight 13 is loaded, there is no need to energize at all times when the adjustment weight is used. Can be achieved.

  As described above, according to the elevator apparatus of the present embodiment, it is possible to circulate the adjustment weight and to operate in a state in which the masses on the side of the passenger car and the counterweight at the time of operation are always close to balance, thereby achieving energy saving. it can. In addition, since the adjustment weight is not directly loaded onto the car, vibrations and noise caused by loading or unloading the adjustment weight can be reduced.

DESCRIPTION OF SYMBOLS 1 ... Elevator apparatus 2 ... Hoistway 3 ... Machine room 4 ... Hoisting motor 5 ... Hoisting sheave 6, 104 ... Rope 7 ... Riding basket 8 ... Counterweight 9 ... Tail cord 10 ... Stop floor 11 ... Landing door 12 ... Adjustment Part 13 ... Adjustment weight 14 ... Guide 15 ... Adjustment weight storage part 16 ... Electromagnet 17 ... Electromagnet movable part 18 ... Electromagnet movable lane 19 ... Electromagnet control

Claims (6)

A winding sheave around which the rope is wound,
A hoisting motor that rotationally drives the hoisting sheave;
A riding basket connected to one end of the rope;
A counterweight connected to the other end of the rope;
A load detection unit for detecting a load of the riding basket;
An adjustment weight for adjusting the balance of the car and the counterweight;
An adjustment weight storage unit for storing the adjustment weight,
A guide for guiding the adjustment weight in the vertical direction;
An electromagnet provided on the ride basket for attaching and detaching the adjustment weight;
An electromagnet moving part for moving the electromagnet;
An electromagnet movable lane for guiding the electromagnet in a horizontal direction;
An electromagnet control unit that controls energization of the electromagnet and the electromagnet movable unit based on a signal from the load detection unit;
An elevator apparatus comprising: Furthermore, an adjustment weight position detection unit for detecting the position of the adjustment weight is provided,
2. The elevator apparatus according to claim 1, wherein, when the electromagnet and the electromagnet movable portion are operated, the traveling of the riding basket is prohibited when the adjustment weight is at the position of the adjustment weight storage portion. And a loading portion for loading the adjustment weight at a position facing the guide of the riding basket,
The elevator apparatus according to claim 2, wherein when the adjusting weight is at the position of the guide, the energization to the electromagnet is cut off.   The elevator apparatus according to any one of claims 1 to 3, further comprising a backup power supply unit that backs up power to the electromagnet, the electromagnet movable unit, and the electromagnet control unit.   The elevator apparatus according to any one of claims 1 to 4, wherein the adjustment weight storage unit can store at least two adjustment weights.   The elevator apparatus according to claim 5, wherein the electromagnet control unit can control at least two electromagnets.

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