JPS6020856Y2 - Coupling for cableway drive system switching - Google Patents

Description

[Detailed description of the invention] This invention is based on a cableway in which a motive pulley wrapped around a cable is rotated to drive the cable and transport people or goods using a carrier.
The present invention relates to a cableway drive system switching coupling for switching the driving system as necessary.

An electric motor is normally used as the main motor to drive the cableway, but if it becomes inoperable due to a power outage or other malfunction, the passengers on the carrier will remain suspended in the air. On the cableway, these passengers are lowered using rescue tools and the like.

However, if operation using such a main engine is not possible, if economic conditions are forgiving and appropriate equipment is available, a spare power unit can be provided, and the drive system can be switched as necessary to speed up the operation. It is desirable for passenger safety to resume operation.

However, the drive system switching device conventionally considered is
The structure is complicated and large, the switching operation is complicated, and it is expensive, so it is not necessarily suitable for relatively small-scale cableways such as lifts.

This idea was made in view of the above-mentioned circumstances, and was designed to provide an easy-to-operate, reliable, and inexpensive drive system switching coupling when installing a standby engine on a relatively small-scale cableway. The purpose is to share ideas.

Corresponding to this purpose, the cableway drive system switching coupling of the present invention provides a cableway drive system having a first drive system and a second drive system for driving a driven shaft. a drive system switching coupling for disconnecting and disconnecting power transmission between the device or the second driving device and the driven shaft, the coupling being attached to the driven shaft and rotated by the first driving shaft; a disc that can be driven; a brake device that can brake the rotation of the disc; and a brake device that is rotatably supported on the outside of a cylindrical shaft that is disposed at a fixed position and is located coaxially with the driven shaft and is relative to the driven shaft. a driven body that is disposed in a free rotation state and can be rotationally driven by the second driving device; and a driven body that penetrates the disk and the driven body to connect the disk and the driven body so that rotation can be transmitted. It is characterized by having a removable pin.

The details of this invention will be explained below with reference to the drawings showing one embodiment.

In Figures 1 and 2, 1 is a support frame fixed on the ground, and a reducer 2 is fixedly installed on the support frame 1.
A cable 5 is wound around a driving pulley 4 fitted to an output shaft 3 of the motor.

The reducer 2 is connected to a main motor 8 via a drive switching coupling 6 and a transmission shaft 7, and the rotation of the main motor 8 rotates the drive pulley 4 to drive the cable 5.

The motive pulley 4 is braked by a brake 10.

On the other hand, a spare prime mover 9 is fixedly installed near the bottom of the support frame 1, and this spare prime mover 9 is connected to a bearing 12 through a transmission shaft 11.
It is connected to a pulley 13 which is pivotally supported by a and 12b.

The drive switching coupling 6 is equipped with a pulley unit 14 as a driven wheel of a winding transmission device, and a winding transmission device, that is, a belt 15 is always stretched and connected by connecting the pulley 13 and the pulley unit 14. .

If you wish to operate with the standby engine 9 for some reason, operate the drive switching coupling 6 to switch the drive system to the standby engine 9 side, and then switch the drive system to the standby engine 9 side.
When rotated, the transmission shaft 11, pulley 13, belt 15
The drive switching coupling 6 rotates via the drive pulley 4 to drive the cable 5.

As mentioned above, the drive system is switched from the main motor 8 side to the standby motor 9 by operating the drive switching coupling 6.
The configuration is particularly shown in detail in FIG.

That is, in FIG. 2, 16 is the input shaft of the speed reducer 2.

The input shaft 16 is a horizontally extending cantilevered shaft that is pivotally supported by a bearing in the reducer 2 at a fixed position. Insert and secure.

The disk unit 17 includes the boss 18 and the boss 18.
The input shaft 16 is integrally formed with a disk 21 formed in the shape of a disk flange from a position near the end of the input shaft 16.

The center of this disk 21 is formed into a hole, and an end piece 22 is inserted into the disk so that it comes into contact with the axial end of the input shaft 16, and is screwed with a bolt 23, so that the disk unit 17 moves toward the axial end of the input shaft 16. Prevents pulling out.

Next, the reducer 2 in the fixed position has a cylindrical shaft 24.
One end is screwed and fixed with a plurality of bolts 25a, 25b, . . . .

This cylindrical shaft 24 has a hollow cylindrical shape, in which the boss 18 of the disk unit 17 can be positioned, and the center of the fixation of the cylindrical shaft 24 to the reducer 2 and the output of the reducer 2 Make sure to match the center of the axis 16,
In addition, a gap 26 is maintained between the inner diameter of the cylindrical shaft 24 and the outer diameter of the boss 18 of the disk unit 17, which is necessary to prevent contact even if there is relative rotation, and It is also necessary to determine the dimensions and arrangement relationship so as to maintain the gap 27 between the end face and the disk 21 as well.

Next, rolling bearings 28a, 2 are provided on the outer periphery of the hollow shaft 24.
8b, and the pulley unit 14 is rotatably supported by the rolling bearings 28a, 28b.

In addition, a spacer 31 fitted around the outer periphery of the cylindrical shaft 24,
With the spacer 32 fitted inside the pulley unit 14,
A predetermined distance between the rolling bearings 28a and 28b is maintained, and a stop ring 33 fitted into a groove formed on the outer periphery of the cylindrical shaft 24 prevents the rolling bearings 28a and 28b from being pulled out.

Also, the cap 34 is connected to a plurality of bolts 35at35b...
..., by screwing the cap 36 onto the end surface of the pulley unit 14 and screwing the cap 36 onto the other end surface of the pulley unit 14 with a plurality of bolts 37a, 37b to prevent the rolling bearings 28a, 28b from being pulled out. In addition to maintaining the position, the arrangement of the pulley unit 14 is also maintained, and the space between the disk 21 and the space 38 is maintained constant.

Next, the disk 21 has a plurality of holes 3 at predetermined radial positions from the center of the input shaft 16 and at equal pitch intervals.
9 is drilled through.

Further, holes 41 of the same number as the plurality of holes 39 are bored and screws are threaded at positions corresponding to the holes 39 on the end surface of the pulley unit 14 facing the disk 21.

A plurality of pins 42 are removably fitted into the opposing holes 39 and 41, thereby coupling the disk unit 17 and the pulley unit 14 so that rotation can be transmitted.

The pin 42 has a head 43 having a square shape, a trunk 44 having a circular shape, and a tip 45 having a male thread.
A hollow cylindrical sleeve 46 is fitted onto the trunk 44 of the main body 44 .

The number of such pins 42 and sleeves 46 corresponding to the number of the plurality of holes 39 is prepared in advance.

As will be described later, when switching to the standby engine system for operation, align the holes 39 and 41, insert the pin 42 with the sleeve 46 fitted loosely through the hole 39, and then insert the pin 42 into the hole 39. The tip 45 of 42 is screwed into the hole 41.

At this time, if the disc spring 47 is loosely fitted onto the distal end portion 45 and the screwing is performed as described above, it is effective to prevent loosening of the screw.

FIG. 2 shows a state in which the engine is operated with a standby motor system, and therefore the disk unit 17 and the pulley unit 14 are connected to be able to transmit rotation.

Note that the disk 21 of the disk unit 17 is also used as a brake disk in the disk brake 48, and therefore the surface of the disk 21 is used as a friction surface of the disk brake 48 which is pressed and braked from both sides by brake shoes 49a and 49b.

Further, a joint flange 51 is connected to a plurality of bolts 52a, 52b, .
..., and the joint flange 51 is connected to the main motor 8 via the universal joint 53b1, the transmission shaft 7, and the universal joint 53a.

The operation and operation method of the cableway drive system switching coupling constructed as described above is as follows.

First, in the case of regular use when driven by the main motor system, the plurality of pins 42 are pulled out from the holes 39 and 41 together with the sleeve 46 and the disc spring 47 to release the connection between the disk unit 17 and the pulley unit 14. I'll try to keep it that way.

Belt 1 connecting pulley 13 and pulley unit 14
5LE is always wound around both, and the standby engine 9 is always stopped.

Further, the joint flange 51 is fixed to the disk 21 and connected to the main motor system.

Now, when the main motor 8 is rotated, the rotation is transmitted to the disk unit 17 via the joint 53a1, the transmission shaft 7, the universal joint 53b1, and the joint flange 51. The cable 45 can be operated by rotating the drive pulley 4 via the output shaft 3 of the reducer 2.

In this case, the pulley unit 14 remains stopped with the belt 15 wrapped around it, but the pulley unit 14 is supported by the cylindrical shaft 24 at a fixed position via rolling bearings 28a and 28b, and this cylindrical shaft 24
A gap 26 and a gap 27 are provided between the disk unit 17 and the disk unit 17.
Since the space 38 is secured between the pulley unit 14 and the disk unit 17, the pulley unit 14 can rotate without coming into contact with each other.

Next, when switching to operation of the standby prime mover system due to some necessity such as when the main prime mover 8 fails, the hole 41 of the pulley unit 14 and the hole 39 of the disk 21 are aligned, and the sleeve 46 and disc spring are connected. Pin 4 fitted with 47
2 is inserted into the hole 39.41 from the tip 45, and the male thread of the tip 45 is screwed into the female thread of the hole 41.

When all the plurality of pins 42 are screwed in this way, the pulley unit 14 and the disk unit 17 are coupled so that rotation can be transmitted.

After connecting in this way, when the spare motor 9 is rotated,
Conduction axis 11. Rotation is transmitted to the pulley unit 14 via the pulley 13 and belt 15.

As mentioned above, the pulley unit 14 is pivotally supported by the cylindrical shaft 24 and connected to the disk unit 17 via the pin 42, so rotation is transmitted by the disk unit 17 and is transmitted from the boss 18 to the input shaft 16 via the key 19. The cable 5 can be driven by the driving pulley 4 via the output shaft 3.

In this case, the joint flange 51 has bolts 52a, 52
Of course, there is no problem in operating the bolt 52a with bolts 52a screwed in, that is, connected to the main motor system, but if the main motor system has a mechanical failure and cannot rotate, the bolt 52a , 53b, . . . , and the joint flange 51 can be removed for operation.

In the embodiment described above, the pulley 13 and the pulley unit 14 are connected using the belt 15, for example, the belt, but the same effect can be achieved even if another winding transmission device is used instead of the belt. Of course, the effect can be obtained.

For example, a transmission sprocket can be used in place of the pulley 13, a transmission sprocket can be used in place of the pulley unit 14, and a transmission chain can be used in place of the belt.

The cableway drive system switching coupling of this invention described above has a simple structure, and by removing the pin 42 serving as the retaining means, it is possible to safely and easily switch from operating the main motor system to operating the standby motor system. Moreover, since it is always connected to the standby prime mover system through the wrap-around transmission, it is possible to quickly switch to the standby prime mover system if necessary, and to connect the driven vehicle of the wrap-around drive to the standby prime mover system. For example, a bearing that pivots a pulley, such as a rolling bearing,
Since the rolling bearing is fitted onto a hollow shaft in a fixed position, the rolling bearing is at rest during operation in the main engine system, and there is no idle wear and tear of the bearing part.

Furthermore, if the drive system is switched close to the driven side, the transmission torque will increase due to deceleration, and the switching device will also be correspondingly large and likely to have a heavy structure. Since the coupling is disposed on the drive side of the reducer input shaft, it is small and lightweight, and therefore easy to operate.

Furthermore, when the disc is used as a pressure plate for the brake, switching operations can be performed safely while using the brake, and the disc is used as the disc unit on the driven side of the coupling structure for switching the drive system. Since it is located on the side, it can be used for either the main engine system or the standby engine system.

Based on the above, conventionally, relatively small-scale cableways such as lifts were not usually equipped with a backup engine, but due to the above-mentioned advantages of this invention, even relatively small-scale cableways such as lifts can be equipped with a backup engine. It can be used economically.

[Brief explanation of the drawing]

FIG. 1 is a configuration explanatory diagram showing a drive mechanism in a cableway, and FIG. 2 is a longitudinal sectional view showing a drive system switching coupling. 1...Support frame, 2...Reducer, 3...
...Output shaft, 4...Motive pulley, 5...
... Cable, 6... Drive switching coupling, 8.
...Main motor, 9...Spare motor, 13
...Pulley 1.14...Pulley unit, 15...Belt, 16...Input shaft, 17...Disc unit, 42...・・・
... Bin, 48... Disc brake.

Claims (1)

[Claims for Utility Model Registration] 1. In a cableway drive device having a first driving device and a second driving device for driving a driven shaft, the first driving device or the second driving device and the A drive system switching coupling for intermittent power transmission with a driven shaft, the coupling comprising: a disk attached to the driven shaft and capable of being rotationally driven by the first driving device; and a rotation of the disk. a brake device capable of braking the
The drive shaft is rotatably supported on the outside of a cylindrical shaft disposed at a fixed position, is located coaxially with the driven shaft, is disposed in a free rotation state with respect to the driven shaft, and is rotated by the second driving device. A drive system switching device for a cableway, comprising: a driven body that can be driven; and a removable pin that can be inserted into the disc and the driven body to connect the disc and the driven body so as to transmit rotation. Coupling. 2. The cableway drive system switching coupling according to claim 1, wherein the brake device is a disc brake, and the disc constitutes a pressure plate of the disc brake. .