JPH0248260A - Driving device for ropeway - Google Patents

Abstract

PURPOSE:To restrain a temperature rise due to heat generation of a reaction plate by introducing ambient air as cooling air from an air intake provided on a wire rope driving pulley and forcedly discharging it from a vent hole in the periphery of the wire rope driving pulley. CONSTITUTION:A rope receiving pulley 1a is formed on the main body of a wire rope driving pulley 1, and a vent hole 7c is formed between the receiving pulley 1a and a disc arm 1b. An air intake 7a is formed on the main body inlet portion through a passage 7b disposed in the interior of the main body of the driving pulley 1. Accordingly, when the driving pulley 1 is rotated, the ambient air is introduced as cooling air from the air intake 7a into the main body by the principle of an axial fan, sent to the vent hole 7c through the passage 7b and discharged to the outside of a driving device while cooling an overheated reaction plate 3 from the back thereof. Accordingly, the temperature rise of the reaction plate 3 can be restrained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a cableway drive device that can directly drive wire rope drive pulleys in cableway systems such as lifts and gondolas.

(Prior Art) Some conventional cableway systems such as lifts and gondolas use linear electromagnetic actuators to drive wire rope drive pulleys. As shown in FIGS. 12 to 13, this type of cableway drive device consists of a wire rope drive pulley 1 rotatably supported on a rotary support shaft 2. is being tense and being circulated. The wire rope drive pulley 1 has a large diameter of about 4,000 mm in order to minimize metal fatigue of the wire rope 5, and its circumferential surface is made of a non-magnetic good conductor such as aluminum or copper by welding or bolting. A secondary reaction plate 3 is attached. Further, a plurality of linear electromagnetic actuators 4 are arranged to face the reaction plate 3 with a constant gap maintained therebetween. The linear electromagnetic actuator 4 is supported by a support mechanism (not shown) separate from the wire rope drive pulley 1.

In the conventional cableway drive device having such a configuration, when the linear electromagnetic actuator 4 is excited with three-phase alternating current, a moving magnetic field is generated in the linear electromagnetic actuator 4, and this moving magnetic field causes the secondary side conductor portion to An eddy current is generated in the reaction plate 3 corresponding to . The interaction between this moving magnetic field and the eddy current generates a propulsive force in the reaction plate 3, and the wire rope drive pulley 1 is rotated in the direction of the arrow to pull the wire rope.

Note that a disc brake 6 for braking the drive pulley 1 is provided on the outer peripheral end surface of the pulley.

(Problems to be Solved by the Invention) However, the cableway drive device using such a linear electromagnetic actuator has the following problems. That is, as the wire rope drive pulley 1 continues to be driven, the reaction plate 3 rises due to the eddy current, reaching a temperature of, for example, 200°C. On the other hand, the wire rope drive pulley 1 has a larger overall volume than the reaction plate 3 and has better cooling performance, so its temperature hardly increases. Therefore, the reaction plate 3 thermally expands and a relatively large relative displacement occurs between it and the wire rope drive pulley 1, and as a result, a large amount of Stress is applied, resulting in deformation or breakage of the bolt or breakage of the weld. Therefore, the temperature rise of the reaction plate 3 is limited,
There was a problem in that the driving force of the wire rope drive pulley 1 could not be increased very much.

Therefore, in order to cool the reaction plate attached to the wire rope drive pulley, the present invention provides an air intake port constituting at least an axial fan in the drive pulley body to introduce cooling air and increase the temperature of the reaction plate. The purpose is to improve the performance of cableway drive devices by making it possible to increase the width as much as possible.

[Structure of the invention]

(Means for Solving the Problems) The present invention includes a ring-shaped reaction plate attached to the outer periphery of a wire rope drive pulley on both upper and lower sides or one side so as to be concentric with the drive pulley. In a cableway drive device in which a plurality of linear electromagnetic actuators are disposed facing each other and the linear electromagnetic actuators are excited to rotate the wire rope drive pulley, the wire rope drive pulley is arranged at a radius from its rotation support mounting boss. The space formed between the upper and lower disc-shaped arms and the boss portion is partitioned by a plurality of ribs to form an air intake port, and A disc-shaped wire rope holder has a pulley interposed between the upper and lower two layers of disc-shaped arms located on the outer periphery of the wire rope drive pulley, and a plurality of ventilation holes are provided between the two layers of disc-shaped arms and the wire rope. The receiver is formed between the pulley and the air introduced from the air intake port is discharged from the ventilation port as cooling air, thereby cooling the reaction plate and the linear electromagnetic actuator.

(Function) In the cableway drive device of the present invention configured as described above,
When the wire rope drive pulley rotates, surrounding air is introduced from the air intake hole formed between the lower disc-shaped arm of the drive pulley body and the rotating support shaft mounting boss using the principle of an axial fan, and is used as cooling air. Through the air passage within the driving pulley body, the two-layer disc-shaped arm and the wire rope receiver are forcibly discharged to the outside through a number of ventilation holes formed between the pulley and the pulley. This cooling air cools the reaction plate disposed near the ventilation hole, suppressing the temperature rise due to overheating as much as possible, and making it possible to improve the performance of the cableway drive device.

〔Example〕

(First Embodiment) A first embodiment of the present invention will be described below with reference to FIGS. 1 to 3. The cableway drive device of this embodiment consists of a wire rope drive pulley 1 rotatably supported by a rotary support shaft 2, and ring-shaped reaction plates 3 are driven on both upper and lower sides of the wire rope drive pulley 1. It is arranged so as to be on a circular axis with the pulley 1. In addition, a linear electromagnetic actuator 4 is located at a position opposite to the back surface of this reaction plate 3 and has a slight gap 12 (3) between the reaction plate 3 and the reaction plate 3.
~5m+s) via a support mechanism (not shown) separate from the wire rope drive pulley 1. Further, disc brakes 6 for braking the drive pulley 1 are provided so as to sandwich the outer peripheral end surface of the pulley.

With this configuration, when the linear electromagnetic actuator 4 is excited with three-phase alternating current, a moving magnetic field is generated in the linear electromagnetic actuator 4, and this moving magnetic field causes an eddy current to be generated in the reaction plate 3 corresponding to the secondary conductor part. arise. The interaction between this moving magnetic field and the eddy current generates a propulsive force in the reaction plate 3, and the wire rope drive pulley 1 is rotated in a fixed direction. However, at this time, the temperature of the reaction plate 3 rapidly increases due to the eddy current.

Therefore, in the first embodiment of the present invention, the main body of the wire rope drive pulley 1 has a lobe receiver and a pulley 1a formed on its outer periphery.
A ventilation hole 7c is formed between the hole 7 and b by a method such as casting. In addition, air is provided to the main body of the drive pulley 1 through a passage 7b provided in the main body of the drive pulley 1 by the boss IC and a plurality of inclined ribs 7 that connect the bent cylinder part of the disc-shaped arm 1b. An input lower a is formed. In addition, in order to increase the effect of introducing air, the height H of the rib 7 may be increased as it approaches the outer circumferential side of the pulley.

In the cableway drive device of the first embodiment of the present invention configured as described above, when the drive pulley 1 rotates, the air intake lower a formed integrally with the pulley body receives air from the surrounding area by the principle of an axial fan. Air is introduced into this main body as a cooling air, and the lobe receiver passes through the passage 7b inside the pulley and is connected to the ventilation lower C formed between the pulley 1a and the peripheral part of the disc-shaped arm 1b.
The overheated reaction plate 3 is cooled from its back side and discharged to the outside of the drive device. In particular, since the reaction plate 3 is attached to the periphery of the disc-shaped arm 1b, the reaction plate 3
The heat due to the temperature rise is transferred to the disk-shaped arm 1b, and the introduced air forcibly cools the disk-shaped arm 1b, thereby promoting cooling of the overheated reaction plate 3. In addition, an increase in the temperature of the linear electromagnetic actuator 4 is prevented, and deterioration of the wire rope 5 due to overheating is prevented as much as possible.

In this way, in this embodiment, the temperature rise of the reaction plate is cooled by the forcibly introduced air flow, so the driving force of the cableway drive device can be increased without being limited by the temperature rise of the reaction plate. becomes possible.

- (Second Embodiment) A second embodiment of the present invention will be described with reference to FIGS. 4 and 5. As shown in FIGS. 4 and 5, in the wire rope drive pulley 1 of this embodiment, the wire rope 5 integrated with the pulley 1 is connected to the pulley 1a and a ring arranged concentrically around the pulley 1a. The reaction plate 3 is separated from the reaction plate 3 to form a separate structure. Furthermore, the outer peripheral surface of the ring-shaped reaction plate 3 is formed into a conical shape that widens toward the end, and a certain gap (g) is maintained so that the reaction plate 3
A plurality of arch-shaped linear electromagnetic actuators 4 are arranged equally on the conical surface. Note that this arch-shaped linear electromagnetic actuator 4 is supported by a support mechanism separate from the rotation support shaft 2 of the drive pulley 1. Furthermore, a plurality of inclined ribs 7 are provided on the back side of the conical part on the main body side of the driving pulley 1, and the conical part 3a and the driving pulley 1 are connected to the boss part 2a to provide air between the ribs 7. It forms the entrance lower 'a. Incidentally, disc brakes 6 for braking are disposed opposite to each other on both outer end surfaces of the pulley 1a of the wire rope 5 receiver.

In the cableway drive device of the second embodiment of the present invention configured as described above, when the drive pulley 1 rotates in the direction of the arrow, a gap is formed between the ribs 7 on the back surface of the conical portion 3a of the main body of the drive pulley 1. From the air intake lower a, based on the principle of an axial fan,
Ambient air is introduced. Then, the introduced air is
Since the reaction plate 3 is cooled from the back side, the overheated reaction plate 3 is forcibly cooled, and the temperature increase force of the linear electromagnetic actuator 4 (effectively prevented). Since the pulley 1a and the reaction plate 3 are attached separately from each other, the wire rope 5 will not be overheated and deteriorated due to the heat generated by the reaction plate 3.

(Third Embodiment) A third embodiment of the present invention will be described with reference to FIGS. 6 to 8. As shown in FIG. 6, in this embodiment, the cableway drive device is composed of a wire rope drive pulley 1 rotatably supported on a rotary support shaft 2, etc., and basically comprises the first embodiment of the present invention.
It functions similarly to that of the example. Part names etc. whose explanations are omitted here correspond to those of this first embodiment. In particular, in this third embodiment, the main body of the wire rope drive pulley 1 has a lobe receiver pulley 1a formed on its outer periphery, and a disk-shaped arm 1 is connected between this portion and the boss IC.
Connect with b. A ventilation lower C is formed between the disc-shaped arm 1b and the lobe holder and the pulley 1a, and a plurality of fins 7d are formed integrally with the ventilation lower C by casting or the like. Furthermore, air is vented to the main body inlet of the drive pulley 1 through a passage 7b formed in the main body of the drive pulley 1 by a plurality of inclined ribs 7 connecting the boss IC and the bent cylinder part of the disc-shaped arm 1b. An input lower a is formed.

Furthermore, the linear electromagnetic actuator 4 includes a secondary stator core 4a and a primary stator winding 4b.

In the cableway drive device according to the third embodiment of the present invention configured in this way, when the drive pulley 1 rotates, air is drawn from the air intake lower a integrally formed in the pulley body according to the principle of an axial fan. Ambient air is introduced into this body and the passage 7b
Through this, the lobe receiver is fed into a ventilation lower C formed between the pulley 1a and the peripheral portion of the disc-shaped arm 1b. In this embodiment, in particular, this ventilation lower C is partitioned by a plurality of vertical fins 7d, so this part functions as a radial fan and exhausts the forcibly introduced air to the outside. .

Thereby, the temperature rise of the reaction plate is more effectively suppressed.

(Fourth Embodiment) A fourth embodiment of the present invention will be described with reference to FIGS. 9 to 11. As shown in FIG. 9, in this embodiment, the cableway drive device includes a wire rope drive pulley 1 rotatably supported on a rotary support shaft 2, etc., and is basically the same as the first embodiment of the present invention. It works similarly to the one. Part names etc. whose explanations are omitted here correspond to those of this first embodiment. In particular, in this fourth embodiment, the lobe receiver extending to the wire rope drive pulley 1 has a plurality of relatively bulky ventilation lowers C located around the drive pulley 1 between the pulley 1a and the disc-shaped arm 1b. A plurality of fins 7d are erected in this ventilation lower C to provide the function of a partition radial fan. Furthermore, a reaction plate 3 and a linear electromagnetic actuator 4 are arranged to correspond to this bulky ventilation lower C, and the air flow that is forcibly discharged from the ventilation lower C and guided by the guide ring 8 causes these reaction plates to 3 and the linear electromagnetic actuator 4 are forcibly cooled. As a result, the entire cableway drive device can be efficiently cooled, and the driving force of the entire cableway drive device can be increased without being limited by the temperature rise of the reaction plate and the linear electromagnetic actuator.

〔Effect of the invention〕

According to the present invention, ambient air is introduced as cooling air through the air intake provided on the wire rope drive pulley, and is forcibly discharged from the ventilation hole provided around the wire rope drive pulley. Since the temperature increase due to heat generation can be suppressed as much as possible by the cooling air, the temperature increase range of the reaction plate can be increased, and the performance of the cableway drive device is improved. Furthermore, the temperature of the linear electromagnetic actuator is prevented from increasing, and deterioration of the wire rope due to overheating is also prevented. As a result, the driving force of the cableway drive device increases.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway view of the first embodiment of the cableway drive device of the present invention, Fig. 2 is a side view of the first embodiment, and Fig. 3 is the first embodiment.
4 is a plan view of the second embodiment of the cableway drive device of the present invention, FIG. 5 is a side view of the second embodiment, and FIG. 6 is the cableway drive of the present invention. 7 is a sectional view taken along the line B-B in FIG. 6, FIG. 8 is a sectional view taken along the line C-C in FIG. 6, and FIG. 10 is a longitudinal sectional view of the fourth embodiment of the drive device, FIG. 10 is a sectional view taken along the line DD in FIG. 9, FIG.
The figure is a plan view of a conventional cableway drive device, and FIG. 13 is a side view of the conventional cableway drive device. DESCRIPTION OF SYMBOLS 1...Wire rope drive pulley, 1a...Lobe receiver is a pulley, 1b...Disc-shaped arm, 1c...Boss portion, 2...Rotation support shaft, 3...Secondary side reaction plate , 4... linear electromagnetic actuator, 5...
Wire rope, 6... Disc brake, 7... Rib, 7a... Air intake port, 7b... Air passage, 7c
... Ventilation port, 7d... Fin, 8... Guide ring. Applicant's agent Sato -Yu No. 1 $3G Ink 2nd drawing Ditch drawing Ink drawing 6 Fig. 12 Pole I3 Fig.

Claims (1)

[Claims] A ring-shaped reaction plate is attached to the outer periphery of the wire rope drive pulley on both upper and lower sides or one side so as to be concentric with the drive pulley, and a plurality of linear electromagnetic actuators are arranged opposite to the reaction plate. In a cableway drive device that rotates the wire rope drive pulley by exciting these linear electromagnetic actuators, the wire rope drive pulley is provided with an upper and lower two-layer disc-shaped arm extending radially from a rotation support mounting boss portion of the wire rope drive pulley. The space formed between the lower disc-shaped arm and the boss part is partitioned by a plurality of ribs to form an air intake port, and the upper and lower two parts located on the outer periphery of the wire rope drive pulley are A disc-shaped wire rope receiving pulley is interposed between the disc-shaped arms of the layer,
A plurality of ventilation holes are formed between the two-layer disc-shaped arm and the wire rope receiving pulley, and the air introduced from the air intake port is discharged from the ventilation hole as cooling air, and a reaction plate is provided between the ventilation holes. A cableway drive device characterized by cooling a linear electromagnetic actuator.