JPH0455278A - Elevator device of linear motor driving system - Google Patents

Abstract

PURPOSE:To suppress and prevent a fluctuation of a balance weight, and a contact of a guide rail and a primary conductor, in the movement by providing a guide shoe guided to the end opposite to the free end of the guide rail, to the side surface of the balance weight. CONSTITUTION:When a power is fed to a balance weight 3 through a cable 6, the primary conductor 4 of a linear motor is excited, and a relative thrust is generated between the primary conductor 4 and a guide rail 2 to be the secondary conductor of the linear motor, and the balance weight 3 is moved up or down so as to move a cage 8 up or down through a rope 12. And when the balance weight 3 is moved up and down, a guide shoe 5A is rotated while holding the base side of the guide rail 2. As a result, a fluctuation of the balance weight 3, and a contact of the guide rail 2 and the primary conductor 4, in the movement can be suppressed and prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a linear motor drive type elevator system, and more specifically to a linear motor drive type elevator system in which a reaction brake I is installed in a hoistway. It is about improvement.

[Conventional technology]

Figures 3 and 4 show a conventional linear motor drive type elevator system disclosed in Japanese Patent Application Laid-Open No. 1-271381, etc. In the figures, (1) is an elevator hoistway;
As shown in Fig. 4, a pair of guide rails (reaction plates 1 to 2) (2) with low rigidity are vertically installed on both sides of the hoistway (1) near the rear side through the "A" member. The pair of opposing guide rails (2) not only function as guide rails, but also function as aluminum secondary conductors of the linear motor.

(3) is a counterweight with an H-shaped cross section that is placed between the pair of guide rails (2) and (2) so that it can be raised and lowered freely. The primary conductors (4) of a plurality of linear motors that generate a relative thrust between the opposing guide rails (2) are arranged, and are guided oppositely to the free ends of the pair of guide rails (2). A plurality of kiteshoes (5) each having a concave planar shape are attached thereto. Further, a cable (6) is connected to the lower part of the counterweight (3) for supplying current from an external power source (not shown) to the primary conductor (4) of the linear motor to excite it.

(7) are installed vertically on both sides of the hoistway (1) and are located closer to the front (
A pair of cage rails (close to the entrance) are placed between the pair of opposing cage rails (7), and an elevator cage (8) is arranged so as to be able to rise and fall freely. 8
) are provided on both sides of the upper and lower parts of the car rails (7) with car guide shoes (9) that are approximately concave in plan and engage with the car rails (7). As shown in Figure 3, the car rail (7
) to stop the heel (8) (10)
is being piled up. (11) is a plurality of sheaves rotatably supported in parallel at the top of the hoistway (1);
A lob (12) is wound around the lobes (12), and one end of the lobes (12) is connected to the top of the counterweight (3), and the other end of the lobes (12) is connected to the top of the cage (8). .

Therefore, the counterweight (3
), the primary conductor (4) of the linear motor is excited and the guide rail (4), which is the secondary conductor of the linear motor, is energized.
2) to generate a relative thrust between the counterweight (3) and the counterweight (3).
) moves up or down to make the bracket (8) lobe (12)
A-move down or up via .

(Problems to be Solved by the Invention) The conventional linear motor-driven elevator system is configured as follows. The pair of guide rails (2) have low rigidity, and furthermore, the rigidity of the pair of guide rails (2) is small, and the central part is Since the amount of protrusion (span) in the direction is long, the rigidity is significantly reduced, and the counterweight (3) swings, causing the guide rail (2), which is the secondary conductor, and the primary conductor (4) of the linear motor to move. There was a risk of contact inside.

The wooden invention was made in view of the above, and the counterweight (3)
It is an object of the present invention to provide a linear motor-driven elevator system that can prevent rocking of the elevator.

[Means to solve the problem]

In order to achieve the above-mentioned object, the present invention includes a guide rail that is installed vertically on the inside of the elevator shoulder and lowering section and constitutes the secondary conductor of the linear motor, a counterweight that is guided by the guide rail, and a counterweight that is guided by the guide rail. The primary conductor of a linear motor is arranged inside the weight and moves the counterweight up and down by generating thrust between it and the opposing guide rail, and the counterweight moves down or up as the counterweight goes down. The elevator car is equipped with an elevator car, and is characterized in that a guide shoe is provided on the side of the counterweight to be guided to the non-free end side of the guide rail.

[Effect]

According to the invention, a guide shoe is disposed on the side of the counterweight to be guided toward the non-free end of the guide rail, so that the swing of the counterweight and the movement of the guide rail and the primary conductor are prevented. Contact can be suppressed and prevented.

〔Example〕

Hereinafter, the invention will be described in detail based on an embodiment shown in FIGS. 1 and 2. In the figure, (1) is an elevator hoistway,
As shown in Figure 2, there are a pair of guide rails (reaction plates) near the back of both sides of the hoistway (1).
(2) is installed vertically, and this pair of guide rails (2)
In addition to its function as a guide rail, it also functions as an aluminum secondary conductor for the linear motor.

(3) is a counterweight with an H-shaped cross section that is placed between the pair of guide rails (2) and (2) so that it can be raised and lowered freely. A plurality of primary conductors (4) of linear motors are arranged to generate relative thrust between the guide rails (2) facing each other. In addition, at the bottom of the counterbalance weight (3), a primary conductor (4
) is connected to a cable (6) that supplies power and excite.

The upper and lower parts of both sides of the counterweight (3) are provided with a plurality of roller-shaped rollers that sandwich the non-free end side of the guide rail (2), in other words, the root side of the guide rail (2). A guide shoe (5A) is rotatably attached to the shaft.

(7) are installed vertically on both sides of the hoistway (1) and are located closer to the front (
A pair of car rails (close to the entrance/exit) are located between the pair of opposing car rails (7), between which the heel (8) of the elevator is arranged so that it can be raised and lowered, and this car (
8) On both sides of the upper and lower parts, car kite shoes (9) with a substantially concave planar shape that engage with the car rails (7) are arranged, and car guide shoes (9) on both sides of the lower part are provided. The first
As shown in the figure, when stopping or emergency stop, the car rail (
Brake (10) that stops the heel (8) by holding the brake (7)
) is installed. (11) is a plurality of sheaves rotatably supported in parallel at the top of the hoistway (1).
), wrap the robe (12) around the robe (12).
One end of the loaf (12) is connected to the second part of the counterweight (3), and the other end of the loaf (12) is connected to the upper part of the cage (8).

Therefore, the counterweight (3
), the primary conductor (4) of the linear motor is excited and the guide rail (4), which is the secondary conductor of the linear motor, is energized.
2) to generate a relative thrust between the counterweight (3) and the counterweight (3).
) is two-part or descending and moves (8) to lobe (12
) to move it downward or upward. When the counterweight (3) moves up and down, the guide shoe (5A) moves while holding the base side of the guide rail (2) to suppress the back and forth and left and right swings of the counterweight (3). To prevent.

As described above, according to the present invention, the kite shoe (5A) that clamps the base portion of the guide rail (2) on the side of the counterbalance gong (3) to suppress and prevent the swinging of the counterweight (3).
) is mounted on the shaft, so the guide rail (
2) can be used with high rigidity, and the counterweight (3)
It is possible to reliably prevent swinging of the primary conductor (4) and contact between the primary conductor (4) and the guide rail (2).

Although the above example uses a lobe-type elevator, the same effect can be obtained by replacing the car rail (7) of the mokato (8) with a secondary conductor in an elevator without lobes. I can do it. In the above embodiment, an induction motor is used as the linear motor, but other systems may also be used with a reaction plate (for example, a birther type motor) on the R-steep road (1) side. Needless to say, the present invention can be applied to any of the above embodiments, and the same effects as those of the above embodiments can be obtained.

〔Effect of the invention〕

According to the present invention, as shown in 2 below, on the side of the counterweight,
The linear motor is equipped with a kite shoe that is guided on the non-free end side of the guide rail, which can suppress and prevent swinging of the counterweight and contact between the guide rail and the primary conductor during vertical movement. It is possible to provide a drive type elevator system.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an embodiment of a linear motor drive type elevator system according to the present invention, Fig. 2 is a plan view of Fig. 1, and Fig. 3 shows a conventional linear motor drive type elevator system. The side view, FIG. 4, is a plan view of FIG. 3. In the figure, (1) is the R steep road, (2) is the guide rail (secondary conductor of the linear motor), (3) is the counterweight, (4) is the primary conductor of the linear motor, (5) and (5A ) is a guide shoe, and (8) is a cage. In addition, the same reference numerals in each figure omit the same or corresponding parts. Figure A Figure

Claims (1)

[Claims] A guide rail that is installed vertically inside the elevator hoistway and constitutes the secondary conductor of the linear motor, a counterweight that is guided by this guide rail, and a guide rail that is arranged inside this counterweight and faces each other. In an elevator device of a linear motor drive system, the linear motor-driven elevator device includes a primary conductor of a linear motor that generates thrust between the linear motors and moves the counterweight up and down, and an elevator car that descends or rises as the counterweight goes up and down. 1. A linear motor-driven elevator system, characterized in that a guide shoe is disposed on the side of the guide rail to be guided toward the non-free end side of the guide rail.