JPH0411552A - Linear motor type cableway device - Google Patents

Abstract

PURPOSE:To increase the revolution torque and improve the balance of a pulley by disposing of thermal expansion by forming cut parts at a certain intervals on a secondary side conductor and installing each linear motor device on both the surfaces of the pulley, in the linear motor device equipped with each secondary side conductor vertically on the surface of the pulley for driving a cableway. CONSTITUTION:A linear motor device 18 is constituted of a secondary side conductor 22 which is made of nonmagnetic material and installed on both the sides of an annular conductor holding body 20 installed concentrically on a pulley 14 and a primary side stator 28, leaving a gap of 1 - 3mm. Since the secondary side conductor 22 is vertically installed on the pulley, the heat radiation effect is drastically large, and the trouble of the temperature rise can be dissolved. Cut parts 25 are formed at a certain intervals on the secondary side conductor 22 and the conductor holding member 20, and thermal expansion is disposed of. The linear motor device 18 is installed on both the surfaces of the pulley, and the revolution torque of the pulley is increased, and the static and dynamic balances of the pulley can be improved.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is a linear motor type cableway device in which a linear motor drives a pulley for driving a cableway of a carrier such as a lift, gondola, or mole rail used for transporting passengers or cargo. It is related to.

(Prior art and its problems) The pulley that drives the cableway of the carrier was driven by an electric motor via a speed reducer. However, large reducers are expensive and not only increase equipment costs, but also cause significant energy loss in the reducer, reducing efficiency. Therefore, it has been proposed to use a linear motor to directly drive the pulley. That is, the sixth
As shown in the figure, there is a circular ring 2 on the surface of pulley 1 that is concentric with pulley 1.
The secondary conductor 9 is firmly fixed, and the primary stator 10 is disposed facing the secondary conductor 9 with a slight gap left. By energizing the primary stator 10, the pulley is rotated and the cableway 6 is driven. Reference numeral 7 is a brake device. Since this cableway apparatus does not require a speed reducer, the structure is extremely simple and inexpensive, and the drive speed of the cableway 6 can be easily controlled.

However, when the secondary conductor is a rail, such as when a linear motor is used to drive a railway vehicle, there is no risk of temperature rise because the rails act as the secondary conductor one after another as the vehicle moves. However, in the case of a linear motor type cableway system, the same secondary conductor 9 acts repeatedly, so there is a drawback that the temperature of that part increases.

(Means for Solving the Problem) In order to solve this problem, the linear motor type cableway device of the present invention provides a secondary conductor on a concentric circle with the pulley that drives the cableway and perpendicular to the surface of the pulley, and It is characterized by comprising a plurality of linear motor devices each having a primary stator installed therein.

It is advantageous to make cuts in the secondary conductor at regular intervals and to provide the linear motor arrangement on both sides of the pulley.

(Function) Since the secondary conductor of the linear motor device is provided perpendicularly to the pulley, the heat dissipation effect can be improved and the problem of heat generation can be solved. Further, thermal expansion can be countered by forming cuts in the secondary conductor at regular intervals. Further, by providing linear motor devices on both sides of the pulley, the rotational torque of the pulley can be increased and the balance of the pulley can be improved.

(Embodiment) Figs. 1 to 3 show an embodiment of the linear motor type cableway apparatus of the present invention. A pulley 14 for driving the cableway 12 is rotatably attached to a pulley support frame 16. The linear motor device 18 is shown in an enlarged view in FIG.

In this embodiment, four linear motor devices 8 are provided, spaced apart by 90 degrees. An annular conductor holding member 20 (mainly made of steel) is provided concentrically with the pulley 14, but it may be bolted or welded to the pulley. As shown in FIG. 2, secondary conductors 22 made of non-magnetic material are attached to both sides of the conductor holding member 20. As shown in FIG. The secondary conductor 22 is made of copper, aluminum, or the like. Further, the conductor holding member 20 and the secondary conductor 20 may be made of non-magnetic high manganese steel.

In the primary stator box 26 supported by four arms 24, on both sides of the conductor holding member 20, one to one for the secondary conductor 22 is provided.
Attach the primary stator 28 leaving a gap of about 3III11. As shown in FIG. 3, a brake device 32 is provided that slides along a concentric brake rail 30 of the pulley 14 to stop the pulley in an emergency or during a stop.

With the above configuration, the secondary conductor 22 is installed perpendicularly to the pulley, so the heat dissipation effect is significantly greater than that of the secondary conductor 9 in FIG. It can be solved.

When the temperature was actually measured using the cableway device having the structure of the present invention, a decrease in temperature of 20 to 30 χ was observed.

FIG. 4 shows another embodiment of the present invention, in which cuts 25 are formed at regular intervals in the secondary conductor 22 and the conductor holding member 20 to cope with thermal expansion.

This cut is 1 to 1 mm in diameter, whereas the diameter of the pulley is 3 to 5 meters.
It is about 0m1.

In the embodiment shown in FIG. 5, linear motor devices 18 are provided on both sides of the pulley. As a result, the rotational torque of the pulley can be increased, and the static and dynamic balance of the pulley can be improved.

(Effects of the Invention) In the present invention, since the secondary conductor of the linear motor device is provided perpendicularly to the pulley, the heat dissipation effect can be improved and the problem of heat generation in the linear motor device can be solved. Moreover, since the cut is formed in the secondary conductor, there is an effect of being able to cope with thermal expansion. Furthermore, by providing linear motor devices on both sides of the pulley, it was possible to increase the rotational torque of the pulley and improve the balance of the pulley.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an embodiment of the cableway device of the present invention, FIG. 2 is an enlarged sectional view of the linear motor device of the cableway device of FIG. 1, and FIG. 3 is a partial plan view of the cableway device of FIG. 1. FIG. 4 is a partial plan view of another embodiment, FIG. 5 is a sectional view of still another embodiment, and FIG. 6 is a perspective view of a conventional linear motor type cableway apparatus. 1... Pulley 6... Cableway 7... Brake device 9... Secondary side conductor 10... Primary side stator 12... Cableway 14... Pulley
16... Pulley support frame 18... Linear motor device
20... Conductor holding member 22... Secondary conductor
24... Arm 25... Cut 26
... Primary side stator box 28 ... Primary side stator 32 ... Brake device 30 ... Brake rail

Claims (1)

[Claims] 1. A plurality of linear motor devices each having a secondary conductor provided perpendicular to the surface of the pulley on a concentric circle with the pulley that drives the cableway, and a primary stator installed opposite to the secondary conductor. A linear motor type cableway device characterized by comprising: 2. The linear motor type cableway apparatus according to claim 1, wherein cuts are formed in the secondary conductor at regular intervals. 3. The linear motor type cableway apparatus according to claim 1, wherein the linear motor apparatus is provided on both sides of a pulley.