JP2023081068A - Preliminary prime mover device for circular type cableway - Google Patents

Abstract

To provide a preliminary prime mover device of a circulation type cableway which has enough drive capability and simple constitution of the device itself.SOLUTION: A preliminary prime mover device of a circulation type cableway has a hydraulic motor 57 with a mechanical brake provided with a drive gear 56, a preliminary prime mover hydraulic unit 58 furnishing hydraulic oil to the hydraulic motor 57 with a mechanical brake and a follower gear 55 which is fastened with the pulley 14 and can occlude with the drive gear 56.SELECTED DRAWING: Figure 6

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a backup driving device for a circulating cableway that drives instead of a driving device that drives a rope in a circulating cableway when it stops.

In a circulating cableway, pulleys are installed at stops at both ends of the track, a cable is hung endlessly between these pulleys, a carrier is suspended on the cable, and the carrier is circulated between stations by driving the cable. It is a facility that operates by This circulating cableway does not need to lay a track along the ground, and it is suitable for operation on sloping ground because it is operated by towing the carrier with a rope, and it is especially suitable for sloping ground like a ski lift. It is often used as a facility to transport passengers from the foot of the mountain to the summit, but in recent years it is also used as a transportation facility in urban areas.

In the circulating cableway, the cable is driven by rotating a pulley provided at one of the stops by a driving device. This prime mover generally consists of an electric motor as a driving force source, a speed reducer connected to the electric motor via a universal joint, and a braking device provided on the output shaft of the electric motor or the input shaft of the speed reducer. The pulley is connected to the output shaft of the speed reducer, and the pulley rotates by driving the electric motor to move the cable. Further, a hydraulic release type braking device is usually employed as the braking device, and is constructed as follows. First, the output shaft of the electric motor or the input shaft of the speed reducer is provided with a brake disc that rotates together with these shafts, and this brake disc is sandwiched between brake pads for braking. A brake pad is biased by a spring force to press the brake disc to obtain a braking force, and is provided with a hydraulic cylinder in a direction to resist the spring force. Applying hydraulic pressure to the hydraulic cylinder presses the brake pad. It is configured to be opened to release the braking force (see Patent Document 1, for example). It is also equipped with a braking device that is also hydraulically released and sandwiches the outer periphery of the pulley.

In the prime mover constructed in this manner, in the event of a failure of the universal joint or a long-term power outage, the carriage cannot be operated, and the carriage is suspended on the rope on the track. Therefore, it is requested that it be safely and promptly accommodated in the station. For this reason, in cableway facilities with long track lengths and cableway facilities with steep ground, etc., a spare drive system is provided, and when operation with a normal drive system is impossible, the drive system can be used as a drive system. It is possible to operate by switching from to the backup prime mover. In many cases, an internal combustion engine is used as the power source for this preliminary driving device, and the driving force generated by the internal combustion engine is input to the speed reducer via fluid couplings, universal joints, belt transmission, and the like. The input shaft of the speed reducer is provided with a switching device for switching between power transmission from the electric motor and power transmission from the internal combustion engine, and the power source can be switched by operating this device (see Patent Document 2, for example). Another example is a preliminary drive system in which a driven gear is fixed to the outer periphery of a pulley, and a drive gear is provided that is rotationally driven by a hydraulic motor or the like, and the driven gear and the drive gear are meshed to drive the pulley. There is also equipment. (See Patent Document 3, for example)

With this configuration, when normal operation is stopped due to a power failure or the like, first, after operating the switching device to switch the power transmission to the backup driving side, the braking device is manually released, and then the internal combustion engine is started. After that, by increasing the rotation speed of the internal combustion engine, the fluid coupling is operated and operation is resumed. When the standby driving device is to be stopped, an electric signal is transmitted from the standby driving device to the hydraulic unit that operates the braking device so that the braking device is brought into a braking state.

JP-A-7-17401 JP-A-2001-294149 JP 2014-34795 A

As described above, the standby drive unit is used when the cableway cannot be operated normally, so it is required to operate reliably and to have a sufficient driving capacity. As a result, the size of the apparatus itself has increased, and the price of the apparatus has also increased.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a backup drive system for a circulating cableway which has sufficient drive capability and which can simplify the structure of the system itself. do.

According to the invention of claim 1, a rope is stretched endlessly between pulleys provided at both ends of the parking lot, and a carriage is suspended on the rope. and drive the pulley by the driving device to circulate the carrier between the stops, in a loop cableway that drives the pulley when the driving device stops The auxiliary driving device includes a hydraulic motor with a mechanical brake and a driving gear, a hydraulic auxiliary driving unit that feeds oil to the hydraulic motor with the mechanical brake, and a pulley that is fixed to the pulley and can be engaged with the driving gear. and a driven gear.

Further, in the invention of claim 2, the cable is stretched endlessly between the pulleys provided at both ends of the parking lot, the carrier is suspended on the cable, and one of the pulleys has a driving device. A spare for driving the pulley when the driving device is stopped in a circulating cableway in which a speed reducer is connected and the pulley is driven by the driving device to circulate the carrier between the stops. A prime mover, wherein the spare prime mover includes a hydraulic motor with a mechanical brake having a drive gear, a spare prime mover hydraulic unit that feeds oil to the hydraulic motor with the mechanical brake, and the drive gear fixed to the pulley. A driven gear that can be meshed is provided on the pulleys of the stops at both ends.

The invention of claim 3 is characterized in that, in the invention of claim 1 or claim 2, the driving gear and the driven gear mesh with each other by sliding the hydraulic motor with the mechanical brake.

According to the first aspect of the invention, when the operation is stopped by the backup driving device, the braking device does not need to be brought into the braking state. is not required and the configuration is simple.

Further, according to the second aspect of the invention, even if one of the backup driving units is inoperable, the other backup driving unit can be used to operate the engine, so that further safety can be achieved. .

Further, according to the third aspect of the invention, it is possible to easily engage and disengage the driving gear and the driven gear.

Front view showing the layout of the entire automatic circulation type cableway facility Front view of transfer device Top view showing one stop Side view of the machine at the stop on the driving side A plan view of the mechanical device viewed parallel to the inclined plane of the driving pulley Enlarged side view of the hydraulic motor installation part

The details of the present invention will be described below with reference to the drawings. FIG. 1 shows the layout of the entire automatic circulation type cableway facility.

As shown in the figure, a driving pulley 14 and an anti-driving pulley 15 are pivoted at the driving side parking lot 11 and the anti-driving side parking lot 12 at both ends, respectively. 18 is endlessly wound and stretched to form a cableway. The driving pulley 14 is connected to a driving device 13 comprising an electric motor, a reduction gear, etc. By driving this, the driving pulley 14 rotates, and the cable 18 circulates between the two pulleys.

In the cableway track, conventionally known carriages 26 that can grip and release the cable 18 are suspended from the cable 18, and the carriages 26 are arranged at regular intervals. These carriers 26 grasp the cable 18 in the cableway track and move with the movement of the cable 18, and release the cable 18 in the motor side stop 11 and the anti-motor side stop 12. At the same time, it is supported by rails 20 and 22 provided at each stop and moves along them.

The rails 20 and 22 provided at the driving side parking lot 11 and the anti-driving side parking lot 12 at both ends are U-shaped in plan view. are provided. This transfer device is conventionally known, and as shown in FIG. The conveyer 26 is transported by pressing against the rope machine 27 .

As shown in FIG. 3 (showing one end of the drive side stop 11 ), the transfer device comprises a deceleration transfer device 31 , a forward transfer device 32 and an acceleration transfer device 33 . The decelerating transfer device 31 is a device for gently decelerating the loose carrier 26 from the speed of the cable 18 to slow speed, and the forward transfer device 32 maintains the decelerated carrier 26 at a constant speed while maintaining the slow speed. The accelerating transfer device 33 is a device for accelerating the carrier 26 from slow speed to the same speed as the cable 18 .

The carrier 26 arriving at the driving side depot 11 in the direction of arrow A is transferred within the driving side depot 11 by the action of each transfer device 31, 32, 33 as follows. First, the carrier 26 transferred to the rail 20 is decelerated by the decelerating transfer device 31 after the rope 18 is released, and then transferred to the departure side while maintaining the slow speed by the forwarding transfer device 32. Let me. A loading/unloading area 23 is provided along the route along which the carriage 26 moves at a slow speed.

FIG. 4 is a side view of the machinery at the driving side stop 11, and FIG. In the driving side stop 11, a yard frame 50 is elevated and fixed in a symmetrical position in parallel with the track direction, and a driving frame 51 is fixed inside the yard frame 50. - 特許庁A driving pulley 14 is pivotally attached to a substantially central portion of the driving frame 51, and a cable 18 is wound around the driving pulley 14 for driving.

The lower end of the driving pulley 14 is connected via a chain joint 52 to a universal joint 53 which extends underground to the station. A speed reducer and an electric motor are installed in the basement of the stop, and the universal joint 53 is rotationally driven through the speed reducer by driving the electric motor. A braking device 54 is provided on the outer periphery of the driving pulley 14 to stop the rotation of the driving pulley 14 . This braking device 54 is a conventionally known hydraulic release type braking device 54, which clamps and brakes the outer peripheral portion of the driving pulley 14 by the operating force of a spring, and operates a hydraulic cylinder provided in the braking device 54. to release the braking force. The hydraulic cylinder is operated by hydraulic pressure generated by a separately provided hydraulic unit.

The upper part of the driving pulley 14 is provided with a spare driving device. A driven gear 55 is fixed to the upper surface of the driving pulley 14 , and a hydraulic motor 57 having a drive gear 56 meshing with the driven gear 55 is fixed to the driving frame 51 . This hydraulic motor 57 is connected by a hydraulic hose to a spare driving hydraulic unit 58 installed at a position away from the driving frame 51 . The preliminary prime mover hydraulic unit 58 includes an internal combustion engine, a hydraulic pump, and a hydraulic oil tank that stores hydraulic oil. do. The hydraulic motor 57 is a hydraulic motor with a mechanical brake, and when the hydraulic motor 57 stops rotating, the mechanical brake operates and the stopped state is maintained.

FIG. 6 is an enlarged side view of the installation portion of the hydraulic motor 57. As shown in FIG. A mounting bracket 59 for holding a hydraulic motor 57 is fixed to the driving frame 51 . The mounting bracket 59 is composed of a fixed portion 60 and a sliding portion 61 that slides up and down. A hydraulic motor 57 is attached to the sliding portion 61 . The upper portion of the fixed portion 60 and the lower portion of the slide portion 61 are connected by a hydraulic cylinder 62. By operating a manual pump 63 connected to the hydraulic cylinder 62, the slide portion 61 or the hydraulic motor 57 slides up and down. do.

With this configuration, when the hydraulic motor 57 is in the lowered position, the drive gear 56 provided in the hydraulic motor 57 and the driven gear 55 provided in the driving pulley 14 are in mesh with each other as shown by the solid line. 57 allows the drive pulley 14 to be driven. Conversely, when the hydraulic motor 57 is in the raised position as indicated by the dashed line, the driving gear 56 and the driven gear 55 are disengaged, and the driving pulley 14 cannot be driven by the hydraulic motor 57 .

With the above configuration, when normal operation by the motor of the prime mover 13 becomes impossible, such as during a power failure, operation is performed as follows. When the operation stops, the braking device 54 operates to keep the driving pulley 14 stopped. Next, the hydraulic motor 57 of the auxiliary driving device is lowered, and the driven gear 55 of the driving pulley 14 and the driving gear 56 of the hydraulic motor 57 are engaged. Next, the chain joint 52 is removed, and the connection between the driving pulley 14 and the universal joint 53 is released. Subsequently, the hydraulic unit of the braking device 54 is operated to release the braking force of the braking device 54 . At this time, the hydraulic motor 57 is mechanically braked and the driving pulley 14 is kept stopped.

Next, when the preliminary driving hydraulic unit 58 is operated, the mechanical brake of the hydraulic motor 57 is released and the driving force of the hydraulic motor 57 is used for operation. When the operation is to be stopped, the auxiliary driving hydraulic unit 58 is stopped and the operation of the hydraulic motor 57 is stopped. At this time, the mechanical brake of the hydraulic motor 57 operates to keep the drive pulley 14 stopped again. As described above, when the operation is stopped by the backup driving device, the braking device 54 does not need to be brought into the braking state, so unlike the prior art, the electrical circuit configuration between the braking unit and the backup driving device is not required, and the configuration is simple. configuration.

In the above description, the engine-side parking lot 11 was explained, but the backup engine device can be configured in the anti-motor-side parking lot 12 in the same manner. By doing so, the operation with the backup driving unit is duplicated, and even if one of the backup driving units is inoperable, the other can be operated, so that the safety is further improved. change can be measured.

11 Driving side stop 12 Anti-driving side stop 13 Driving device 14 Driving pulley 15 Anti-driving pulley 18 Cable 20 Rail 22 Rail 23 Boarding area 26 Carriage 27 Grip machine 30 Rubber tire wheel 31 Deceleration transfer device 32 Forward transfer device 33 Acceleration Transfer device 50 In-house frame 51 Driving frame 52 Chain joint 53 Universal joint 54 Braking device 55 Driven gear 56 Drive gear 57 Hydraulic motor 58 Preparatory driving hydraulic unit 59 Mounting bracket 60 Fixed part 61 Slide part 62 Hydraulic cylinder 63 Manual pump

Claims (3)

A rope is stretched endlessly between the pulleys provided at both ends of the parking lot, and a carriage is suspended on the rope. In a circulating cableway that operates by circulating the carrier between the stations by driving the pulleys, a backup driving device for driving the pulleys when the driving device is stopped, wherein the backup driving device The device comprises a mechanically braked hydraulic motor having a driving gear, a preliminary driving hydraulic unit feeding oil to the mechanically braked hydraulic motor, and a driven gear fixed to the pulley and meshable with the driving gear. A spare driving device for a circulating cableway, characterized by: A rope is stretched endlessly between the pulleys provided at both ends of the parking lot, and a carriage is suspended on the rope. In a circulating cableway that operates by circulating the carrier between the stations by driving the pulleys, a backup driving device for driving the pulleys when the driving device is stopped, wherein the backup driving device The device has a hydraulic motor with a mechanical brake equipped with a driving gear, a preliminary driving hydraulic unit that supplies oil to the hydraulic motor with a mechanical brake, and a driven gear fixed to the pulley and meshable with the driving gear. A standby driving device for a circulating cableway, characterized in that it is provided in the pulley of the station. 3. The auxiliary driving device for a circulating cableway according to claim 1 or 2, wherein the driving gear and the driven gear are meshed by sliding the hydraulic motor with a mechanical brake.

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