JPH06127868A - Linear motor elevator - Google Patents

Abstract

PURPOSE: To reduce the number of linear motors and reduce the cost by providing guide rails for guiding a car along an elevating route on the end sides on both right and left side walls of the car and arranging a linear motor at almost center of both right and left side walls. CONSTITUTION: A pair of guide rails 6 and 7 having a sectional appropriate T shape are erected in an elevating route on both right and left side walls 4 and 5 and in an orthogonal direction of a car 1. In addition, a frame 8 consisting of an upright channel 10 located on the end side of both side walls 4 and 5 and a cross-head channel 11 and a blank channel 12 located respectively on the top wall surface and bottom wall surface of the car 1 is provided in the car 1, and brake shoes 13 and 14 and a safety shoe 17 of which guide shoes 15 and 16 are engaged slidably with the guide rails 6 and 7 are fixed to both ends of the respective channels 10 and 12. Then linear motors 18 and 19 consisting of secondary elements 20 and 21 and primary elements 22 and 23 are arranged at almost center of both side walls of the car 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a linear motor type elevator for moving a car up and down by a linear motor.

[0002]

2. Description of the Related Art As a conventional linear motor type elevator, for example, there is one as shown in FIG.
261789). In FIG. 3, reference numeral 101 is a car that is vertically movable in the hoistway 102, and a pair of guide rails 103 and 104 are erected at substantially the center of both left and right sides of the car 101. The guide rails 103 and 104 are engaged with guide rollers 105 and 106 attached to both left and right side walls of the car 101, and the car 101 is guided to the guide rails 103 and 104 via the guide rollers 105 and 106. The primary side elements 111, 112, 113, 114 of the linear motors 107, 108, 109, 110 sandwiching the guide rails 103, 104 on the left and right side walls of the car 101 are the hoistways 1.
02, and the secondary side elements 11 of the linear motors 107, 108, 109, 110 are provided on the left and right side walls of the car 101.
5, 116, 117 and 118 are primary side elements 111 and 11
2, 113 and 114 are attached so as to face each other.

Primary side elements 111, 11 of a linear motor
When a drive current is applied to the secondary side elements 111, 112, 113, 114 and the secondary side element 1,
Magnetic force is generated between 15, 116, 117 and 118, and the car 101 is moved up and down. At this time, since the linear motors 107, 108, 109, 110 are provided on the left and right sides of the car 101, the car 101 can be moved in a well-balanced manner.

[0004]

However, in such a conventional linear motor type elevator, in order to move the car 101 in a well-balanced manner, the car 107, 108, 109, 110 is approximately in the center of the linear motor.
Although the guide rails 103 and 104 must be provided on both the left and right sides of the linear motor 1, the guide rails 103 and 104 must be sandwiched between the two linear motors 107, 108 and 109, respectively. , 11
There is a problem that the number of 0s increases and the cost increases as a whole. In addition, the number of primary side elements 111, 112, 113, 114 arranged in the hoistway 102 increases, and there is a problem in that it takes time to dispose these elements.

It is an object of the present invention to provide a linear motor type elevator in which the number of linear motors is reduced to reduce the cost as a whole and the labor of primary side elements arranged in a hoistway can be reduced. .

[0006]

In order to achieve such an object, according to the present invention, a car, which is vertically movable in a hoistway, comprises a primary side element and a secondary side element. In a linear motor type elevator including a linear motor for moving the car up and down and a guide rail for guiding the car along a hoistway, the guide rails are provided on both end sides of left and right side walls of the car. Arranged, one of the primary side element or the secondary side element is provided on each of the left and right side walls of the car, and the other of the primary side element and the secondary side element is opposed to this one side. Each of them is arranged.

[0007]

Since the guide rails are erected on the end sides of the left and right side walls of the car, the linear motor can be positioned substantially at the center of the left and right side walls. Therefore, in order to move the car in a balanced manner, it suffices to provide one linear motor at each of the left and right side walls at substantially the center thereof.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 and 2 are views showing an embodiment of a linear motor type elevator according to the present invention.

In FIG. 1 and FIG. 2, reference numeral 1 is a car arranged in the hoistway 2 so as to be vertically movable.
A pair of doors 3a and 3b are provided on the front surface of the so as to be openable and closable. A pair of guide rails 6, 7 having a substantially T-shaped cross section are provided upright in the hoistway 2 at the ends of the left and right side walls 4, 5 of the car 1 and in the diagonal direction. The car 1 is provided with a car frame frame 8. The car frame frame 8 is located on the end side of the left and right side walls 4, 5 (only one is shown), and the car 1 top wall surface side. And a plank channel 12 located on the bottom wall surface side.

Brake shoes 13 and 14 are fixed to both ends of the crosshead channel 11, and guide shoes 15 and 1 slidably fitted on the guide rails 6 and 7, respectively.
6 is fixed. A safety shoe 17 (only one is shown) is fixed to both ends of the plank channel 12, and a guide shoe 18 (only one is shown) slidably fitted to the guide rails 6 and 7 is provided under the safety shoe 17. It is fixed. Brake shoe 1
3 and 14 operate when a power failure occurs, and the safety shoe 17 operates when the descending speed of the car 1 increases.

In the center of the left and right side walls 4, 5 of the car 1,
Linear motors 18 and 19 are provided for vertically moving the car 1 in a well-balanced manner. That is, the secondary side elements 20 and 21, which are the non-power supply side (non-excitation side) of the linear motors 18 and 19, are composed of a plurality of rare earth permanent magnets 20a attached to the left and right side walls 4 and 5, respectively. An iron plate (not shown) forming a magnetic path is attached to the back side of the. In addition, the secondary side elements 20, 2
1, the linear motor 18,
Primary side elements 22 and 23, which are the power feeding side (excitation side) of 19, are provided. The primary side elements 22 and 23 are magnetic flux holding core materials 22a and 23a formed by winding a normal conduction coil (not shown).
Are arranged in a row in the vertical direction.

Primary side element 2 of linear motors 18 and 19
When an alternating current is applied to the second and second elements 23,
A magnetic flux is generated in 2 and 23 by the right side of the right-hand screw, and the secondary side elements 20 and 21 are attracted. The car 1 provided with the secondary side elements 20 and 21 is attracted and moved by the moving magnetic field in the primary side elements 20 and 21. At this time, since the linear motors 18 and 19 are located substantially at the centers of the left and right side walls 4 and 5, the car 1 is moved in a balanced manner, and vibration is suppressed.

By the way, since the guide rails 6 and 7 are erected on the end sides of the left and right side walls 4 and 5 of the car 1 and in a diagonal direction, the linear motors 18 and 19 are positioned substantially at the centers of the left and right side walls 4 and 5. Can be made. Therefore, in order to move the car 1 in a balanced manner, the linear motors 18, 1
The number of linear motors 9 can be reduced as compared with the conventional case, by providing only one each of the left and right side walls 4, 5 substantially at the center.

Further, in order to arrange the primary side elements 22 and 23 in the hoistway 2, a large number of magnetic flux holding core materials 22a and 23a must be arranged in series in the vertical direction.
Since the number of the magnetic flux holding core materials 22a and 23a can be reduced, the number of the magnetic flux holding core materials 22a and 23a can be reduced.

The primary elements 22 and 23 of the linear motors 18 and 19 may be provided in the car 1, and the secondary elements 20 and 21 may be provided in the hoistway 21.

[0016]

As described above, according to the present invention,
In order to move the car in a well-balanced manner, it suffices to install one linear motor at each of the left and right side walls of the car, approximately one at the center of the car. it can. Further, the labor of the primary side element or the secondary side element arranged in the hoistway can be reduced as compared with the conventional case.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a linear motor type elevator according to the present invention.

FIG. 2 is a sectional view of this linear motor type elevator.

FIG. 3 is a perspective view of a conventional linear motor type elevator.

[Explanation of symbols]

 1 ... Basket 2 ... Hoistway 4, 5 ... Left and right side walls 6, 7 ... Guide rails 18, 19 ... Linear motor 20, 21 ... Secondary side element 22, 23 ... Primary side element

Claims (1)

[Claims] 1. A linear motor for moving a car up and down, comprising a primary side element and a secondary side element, and a car arranged along the hoistway so as to be vertically movable in the hoistway. In a linear motor type elevator having a guide rail for operating the guide rail, the guide rails are arranged on the end sides of the left and right side walls of the car, and either one of the primary side element or the secondary side element is attached to the car. A linear motor type elevator, wherein the linear motor elevator is provided on each of the left and right side walls, and the other of the primary side element and the secondary side element is disposed so as to face one of the side walls.