JPH0780456B2 - Automatic circulation cableway departure-arrival pushing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a gripping machine that suspends a carrier and grasps and releases a cord according to a command, and stops or slightly slows it from a speed synchronized with the cord. The present invention relates to a start / arrival pushing device for an automatic circulation type cableway that decelerates to a speed and stops or accelerates from a very low speed to a speed that is synchronized with the speed of the rope.

(Prior Art) Conventionally, an automatic circulation cableway has been widely used as a transportation means in mountainous areas and in recent years as a lift in a ski resort. In this automatic circulation type cableway, generally, it has a function of connecting a pair of high-speed pulleys respectively arranged at terminals located at both ends of the cableway line to circulate the cable rope, grasp and release the cable rope. The carrier is suspended from the gripping machine, and the carrier is operated as the rope is moved to transport freight customers.

The gripping machine, at the terminal at one end, is gripped when it reaches the same speed as the rope speed by being accelerated to the rope speed by a conveyor or the like after the stop or the completion of the handling of freight passengers at a low speed traveling state. Take off. When it arrives at the terminal at the other end, it automatically releases the line, and it is decelerated by a conveyor or the like from the line speed to a very low speed or stopped, and is treated as a freight customer in the state of running at a very low speed or stopped. In this way, freight passengers are transported.

When the gripping machine and the rope are not gripped at the same speed, the wear of the equipment is not only accelerated but also the cargo passenger of the carrier is impacted, which is not preferable. As described above, in the automatic circulation cableway, a device is required to stop or accelerate the carrier from the very low speed to the same speed as the rope at the time of departure, or to decelerate it from the speed of the rope to the very low speed or stop at the arrival. Is. This device is the departure / arrival pushing device.

Next, a conventional departure / arrival pushing device for an automatic circulation cableway will be described with reference to the plan view of the entire drive-side terminal A in FIG. 6 and the side view in FIG. In this terminal A, the high speed pulley 3 is driven by the main motor 1 via the speed reducer 2, but in the driven side terminal corresponding to this terminal A, the high speed pulley is driven by the rope 4. Therefore, the main motor 1 and the speed reducer 2 do not exist. But everything else is exactly the same.

6 and 7, a cord 4 is stretched between a high-speed (driving) pulley 3 of the terminal A and a high-speed pulley of the driven side terminal (not shown). Is circulated at a constant speed v _h in the direction indicated by the arrow.

The rope 4 is guided downward by the guide roller 5 when reaching the driving side terminal A including the driven side, and the gripping rope guide rail 6 provided along the rope 4.
Drive below. Therefore, the gripping machine 7 releases the cord 4 and runs on the gripping machine guide rail 6 by the lower roller 8 provided in the stock of the gripping machine 7. The lanyard guide rail 6 extends around the outside of the high-speed pulley 3 and is installed between the departure side and the arrival side of the carrier 9 suspended by the lanyard 7.

On the other hand, a low-speed drive pulley 10 is provided coaxially with the high-speed pulley 3, and the low-speed drive pulley 10 is provided with a low-speed drive chain 13 via a gear device 11 and a shaft 12 and further a pushing conveyor 14 (14a). , 14b). The chain 13 is provided so as to move along the gripping machine guide rail 6 near the high speed pulley 3 at a low speed v _L in the same direction as the moving direction of the rope 4, and a plurality of chains 13 are arranged on the chain 13. The gripping machine 7 is hooked by the ratchet 15 that has been moved, and the gripping machine 7 is moved from the arrival side pushing conveyor 14a to the departure side pushing conveyor 14b.
Transfer to. Therefore, the rigging machine 7 runs on the lacing machine guide rail 6 from the exit 16 side of the terminal A to the exit 17 side.

The arrival side and departure side push conveyors 14a, 14b are both of the gripper guide rail 6 from the end of the gripper guide rail 6 to a part where the chain 13 runs in parallel with the gripper guide rail 6. They are arranged in parallel on the upper side and along the gripping machine guide rails 6. The pushing conveyor 14 has a structure in which a plurality of rubber tire-shaped speed control rollers 18 are continuously arranged along the gripping machine guide rail 6, and at least one of the speed control rollers 18 is a gripping machine. 7 are arranged so as to be in pressure contact with the upper surface of 7. These speed control rollers 18 are driven by a power transmission mechanism such as a chain (not shown) to push the gripping machine 7. The place where the push conveyor 14 is provided is the departure / arrival push section.

A series of speed-controlling rollers 18 near the entrance 1 of the terminal A among the speed-controlling rollers 18 constituting the arrival-side pushing conveyor 14a.
Is driven so as to force the gripping machine 7 to be pushed on the gripping machine guide rail 6 at the same speed as the speed v _h of the rope 4. Further, in the series of speed control rollers 18 of the portion 19 parallel to the chain 13, the gripping machine 7 is also operated at a low speed equal to the speed v _{L of the} chain 13.
Is driven so as to push. By the way, in the series of speed-controlling rollers 18 between the speed-controlling rollers 18 near the entrance 16 of the terminal A and the speed-controlling rollers 18 in the portion 19 parallel to the chain 13, the speed-controlling rollers 18 are adjacent to each other. The speed of 18 is slightly different, and the speed of the gripping machine 7 is the same as that of the rope 4.
It is driven so as to gradually decelerate from v _h to the same speed as the chain 13 v _L. Incidentally, it is disposed the governor roller 18 to be accelerated to the speed v _h conversely speed of likewise Nigisaku machine 7 to the starting side pusher conveyor 14b.

Thus, when the carrier 9 arrives at the terminal A, the gripping machine 7
The lower roller 8 is engaged with the gripping device guide rail 6, and the upper surface of the gripping device 7 comes into pressure contact with the speed controlling roller 18 of the arrival-side pushing conveyor 14a. The gripping machine 7 releases the cord 4 when it is detected by a predetermined means that the gripping machine 7 rides on the gripping machine guide rail 6. However, Nigisaku machine 7 initially by the arrival side pusher above has been governor roller 18 of the conveyor 14a is pusher in rope 4 the same speed v _h, then rope 4 is completely separated the Nigisaku machine 7 At the same time, the speed is reduced from the same speed v _h as the rope 4 to the same speed v _{L as the} chain 13, and when the arrival side pushing conveyor 14a is passed, the pushing force is lost and the driving is stopped. Passengers and the like in the carrier 9 suspended by the gripping machine 7 are treated as freight passengers in a very low speed state of speed v _L or in a stopped state.

Next, the gripping machine 7 is hooked by the ratchet 15 arranged on the chain 13 during or after handling as a freight passenger, is driven by the chain 13, and turns around the outside of the high-speed pulley 3 to be pushed to the departure side. Transferred to the conveyor 14b. Subsequently, the gripping machine 7 is pushed by the departure side pushing conveyor 14b, but the departure side pushing conveyor 14b
During this period, the speed-adjusting roller 18 forming the departure-side pressing conveyor 14b has the same speed v _{L as the} chain 13 and therefore is pushed at the speed v _L. Therefore,
Even during this low speed v _L , handling as a passenger is possible.

From the position where the chain 13 moves away from the gripping device guide rail 6, the rotation speed of the speed-adjusting roller 18 of the starting-side pushing conveyor 14b is sequentially increased to accelerate the gripping device 7, and the speed of the rope 4 to the gripping device 7. After passing the speed-control roller 18 near the exit 17 of Terminal A, which gives the same speed as v _h , the rigging machine 7 again returns to the rope 4
Figure out. At the time when the gripping machine 7 grasps the cord 4, the speed of the cord 4 and the speed of the gripping machine 7 are the same speed v _h
Therefore, no shock occurs.

(Problems to be Solved by the Invention) However, in the above-mentioned automatic circulation type cableway,
A roller conveyor using speed control rollers is used as the departure / arrival pushing device, and the rotation speed of each speed control roller, in other words, the pushing speed is changed by a mechanical speed reduction mechanism, with the speed of the drive motor being constant. . Therefore, there is a problem that the power transmission mechanism is not only complicated but also its maintenance including the speed-adjusting roller is difficult.

The present invention has been made for the purpose of solving such problems.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the departure / arrival pushing device for an automatic circulation type cableway according to the first invention is the same as the above-mentioned one, but is driven at a variable speed by a variable voltage variable frequency inverter. The variable voltage variable frequency inverter supplies power to the primary side through the power supply trolley wire and the current collector corresponding to the power supply trolley wire, and the primary side and the current collector perform the power supply or the departure. .A linear induction motor is provided on the carriage that engages with the gripping machine in the arrival push section, and the secondary side and the feeding trolley wire are placed in the departure / arrival push section on the ground side. It is characterized by.

In addition, the second invention corresponds to the above-mentioned one, in which (a) the variable voltage variable frequency inverter drives a variable speed, and the variable voltage variable frequency inverter corresponds to the power feeding trolley wire and its power feeding trolley wire to the primary side. Power is supplied via a current collector, and the power is distributed from the primary side and the current collector to the trolley or a carriage that engages with the trolley in the departure / arrival pushing section, and the secondary side and the A linear induction motor in which a power supply trolley wire is arranged in the departure / arrival pushing section on the ground side, and (b) the primary side of the linear induction motor, which detects a moving object of a gripping machine or a carriage, A plurality of sensors arranged on the secondary side of the induction motor along the traveling magnetic field direction of the linear induction motor; and (c) detection times of the plurality of sensors. It detects the speed of the moving object from, and is characterized in that it comprises a control means for controlling the output frequency of the variable voltage variable frequency inverter by the difference between the planned pusher speed.

(Operation) 1st invention; The gear shifting of the gripping machine is performed by a linear induction motor driven at a variable speed by a variable voltage variable frequency inverter instead of a roller conveyor.

Second invention: Tuning the speed by controlling the output frequency of the variable voltage variable frequency inverter based on the difference between the detected speed of the moving object and the planned pushing speed, especially when the gripping machine grasps the rope at the time of departure. Accurate synchronization between the speed of the strip and the speed of the gripper.

(Embodiment) Next, a concrete embodiment of the departure / arrival pushing device for the automatic circulation cableway according to the first invention and the second invention will be described with reference to the drawings. The same reference numerals as those used in the description of the related art with reference to FIG. 6 and FIG. 7 indicate the same contents, and redundant description will be omitted.

Embodiment 1 First, referring to FIGS. 1 and 2, in the present embodiment, the conventional roller conveyor is replaced by the secondary side 20A, 20B of the linear induction motor on the deceleration side and the acceleration side on the arrival side and the departure side, respectively.
However, in both cases, the chain 13
Is arranged above the pontoon guide rail 6 up to a portion including a portion that runs parallel to the pontoon guide rail 6 and along the pontoon guide rail 6 in parallel.

Next, in FIG. 3 showing the starting and pushing side, a speedometer 23 is provided on the shaft 22 of the high-speed pulley 3 on which the rope 4 is stretched, and the speed v _{h of the} rope 4 and the chain 13 velocities v _L have been measured. The gripping machine 7'with the carrier 9 suspended therein has the lower roller 8 provided on the gripping machine guide rail 6 in the lower part of the gripping machine 7'in the terminal A as described in the section of the prior art. Run by. A primary side 21 of a linear induction motor (common to the deceleration side and the acceleration side) and a current collector 24 are provided on the upper surface side of the gripping machine 7 '. The secondary side 20B of the above-mentioned acceleration side linear induction motor is parallel to the upper side so as to oppose the traveling position of the gripping machine 7 ', in other words, so as to face the gripping machine guide rail 6. A three-phase power feeding trolley wire 25, which is disposed and is similarly slidably contacted with the current collector 24 to feed power to the primary side 21 of the linear induction motor via the current collector 24, is installed in parallel. There is. The feeding trolley wire 25 is connected to a variable voltage variable frequency inverter 26. Further, a sensor 27 (which detects passage of the primary side 21 of the linear induction motor at a predetermined interval along the secondary side 20B of the acceleration side linear induction motor, in other words, along the traveling magnetic field direction X direction of the linear induction motor) ( 27a ~ 27g) are arranged, and this sensor 27 (27a
The detected output of ~ 27g) is supplied to the inverter controller 28.

The inverter control device 28 receives the speed signal from the speedometer 23, and detects the speed v _{h of the} rope 4 and the low speed chain.
The velocity v _L of 13 is calculated from the velocity signal and each sensor 27
Calculates the planned feeding speed at the a to 27g positions. further,
The moving speed of the gripping machine 7'is calculated from the difference between the detection times of the detection signals from the sensors 27a to 27g, and the variable voltage variable frequency inverter 26 is calculated according to the difference between the planned pushing speed and the moving speed of the gripping machine 7 '. Control the output frequency of. Of course, stable operation of the linear induction motor can be achieved by controlling the output voltage according to the output frequency.

By the way, if the gripping machine 7'hanging the carrier 9 that has been treated as a freight passenger is hooked by the ratchet 15 and pulled by the chain 13, travels on the gripping machine guide rail 6 and arrives at the departure pushing section. The first sensor 27a detects the arrival of the gripping machine 7 ', in other words, the primary side 21 of the linear induction motor. Based on this detection, the inverter control device 28 controls the output frequency of the variable voltage variable frequency inverter 26 to an output frequency at which the gripping machine 7 ′ maintains the speed of the chain 13 v _L.

Ratchet 15 of chain 13 during low speed section L (v _L ) of about 5 m
Is separated from the gripping machine 7 ', and the acceleration section M (v _L →
speed from the speed v _L of the rope 4 of v after entering the _h) of the chain 13
Accelerate to v _h . Next, when the gripping machine 7'enters the high-speed section N (v _h ) of about 3 m, the sensor 27 detects that the gripping machine 7'has entered the high-speed section N and the gripping machine 7'searches for it. After grasping Article 4, leave the gripping rail guide rail 6 and depart from Terminal A.

With respect to the arrival and delivery section, only the reverse order of the configuration and operation described above will be omitted, and thus detailed description thereof will be omitted.
However, when the rigging machine 7 ′ arrives at the terminal A and starts traveling on the clinching machine guide rail 6, and when the first sensor detects the primary side 21 of the linear induction motor, the variable voltage variable frequency inverter causes the gripping machine to operate. It is controlled by the inverter control device to the output frequency to keep the speed of the speed v _h of the rope 4 of 7 '.
When the primary side 21 of the linear induction motor is in the high speed section l, the gripping machine 7'releases the rope 4 and is decelerated to the speed v _L in the deceleration section m, and the fine speed is reached after the low speed section n. Or, after being treated as a passenger in a stopped state, the chain 13
It is hooked by the ratchet 15 and transferred to the above-mentioned departure pushing section. Although the variable voltage variable frequency inverter and the inverter control device are generally arranged separately on the departure side and the arrival side, they may be used together when the distance between the transporters 4 is large.

Second Embodiment Next, with reference to FIG. 4, a case where a transport carriage 29 that engages with the gripping machine 7 ″ is separately used in the departure / arrival pushing section will be similarly described with respect to the departure pushing side.

In addition, the same reference numerals as those used in the first embodiment and the like indicate the same contents, and the overlapping description will be omitted.

In FIG. 4, in addition to the gripping machine guide rail 6 for the gripping machine 7 ″, the carriage 29 is run along the gripping machine guide rail 6 and runs on the gripping machine guide rail 6. For this purpose, the carriage guide rail 30 is used for this gripping machine guide rail 6.
In the same manner as above, it is provided on each of the departure pushing side and the arrival pushing side not shown. The primary side 21 of the linear induction motor and a three-phase power feeding trolley wire are provided on the upper surface side of the carrier vehicle 29.
A current collector 24 slidably contacting 25 is provided, and a carriage roller 31 is provided at the lower portion thereof, so that the carriage 29 travels on the carriage carriage guide rail 30 in a departure or arrival push section to reciprocate. It is configured. In addition, an engaging portion 33 that engages with a protruding portion 32 that protrudes to the upper surface side of the gripping machine 7 ″ is also provided in the lower portion of the transport carriage 29. The engaging portions 33 rotate at their tips, respectively. It is composed of a pair of turning levers 35 having a body 34. Therefore, the gripping device 7 ″, which has reached the terminal A by suspending the carrier 9, is engaged with the engaging portion 33 via the protrusion 32, As described above, the transport carriage 29 pushes the departure pushing section. In the present embodiment, the carrier carriage guide rail 30 and the like are configured such that the carrier carriage 29 automatically reciprocates on the carrier carriage guide rail 30 after the completion of the reciprocating movement by the variable voltage variable frequency inverter 26 in the forward direction. However, the transport carriage guide rail 30 may be formed in a ring shape so that the transport carriage 29 is circulated. In this case, it is necessary to pay attention to the distance between the carrying devices 9.

As a modified example, as shown in FIG.
May be provided on the upper surface side of the gripping machine 7, while the protrusion 32 may be provided on the lower surface side of the transport carriage 29 '.

In the first and second embodiments, the conventional low-speed drive chain 13 is used as it is, but the primary side of the linear induction motor is
20A, 20B along the rope guide rail 6 high speed pulley 3
Alternatively, the linear induction motor itself may be connected to the outside to replace the chain 13 to push the carrier 9 from the arrival push section to the departure push section.

(Effect of the invention) 1st invention; Since a linear induction motor is used for variable speed pushing of a gripping machine, etc., its structure is simpler than that of a conventional roller conveyor.
Easy to maintain. In addition, by providing the primary side of the linear induction motor on the side of the gripper or carrier that is pushed and moved, the primary side of the linear induction motor is the ground side and the secondary side is the side of the gripper or carrier. Linear induction motors are much cheaper than those that do.

2nd invention: Speed synchronization, especially since the speed of the rope and the speed of the gripping machine when the gripping machine grasps the rope at the time of departure can be accurately synchronized, so that the impact of a rapid speed change, etc. There is no need to transport freight customers smoothly.

By using a carrier truck and arranging the primary side of the linear induction motor on this carrier truck, the primary side of the linear induction motor and also the secondary side will always be located in the terminal, and especially snow resistance There is no need to structure.

[Brief description of drawings]

1 to 5 are drawings for explaining a concrete embodiment of the automatic circulation type departure / arrival pushing apparatus according to the first and second inventions, and FIGS. A plan view and a side view of the entire terminal corresponding to Example 1, FIG. 3 is a partial side schematic view of a departure pushing side of the terminal corresponding to Example 1, and FIG. 4 is a departure pushing side of the terminal corresponding to Example 2. FIG. 5 is a partial side schematic view of a modified example corresponding to Embodiment 2, and FIGS. 6 and 7 are a plan view and a side view for explaining the entire conventional terminal, respectively. Is. 1 ... Main motor, 2 ... Speed reducer 3 ... High-speed pulley, 4 ... Rope 5 ... Guide roller, 6 ... Grip machine guide rail 7,7 ′, 7 ″ …… Grip machine 8 ...... Lower roller, 9 ・ ・ ・ Carrier 10 …… Low speed drive pulley 11 …… Gear device, 12 …… Shaft 13 …… Chain 14 (14a, 14b) …… Pushing conveyor 15 …… Ratchet, 16 …… Terminal Inlet 17 …… Terminal exit 18 …… Governing roller 19 …… Parts 20A, 20B …… Linear induction motor secondary side 21 …… Linear induction motor primary side 22 …… 3 axis, 23 …… Speed Total 24 …… Current collector 25 …… Power supply trolley wire 26 …… Variable voltage variable frequency inverter 27 (27a to 27g) …… Sensor 28 …… Inverter controller 29,29 ′ …… Transport truck 30 …… Transport truck Guide rail 31 …… Troller roller, 32 …… Projection part 33 …… Engagement part, 34 …… Rotating body 35 …… Rotating lever

Claims (2)

[Claims] 1. A gripping machine that suspends a carrier and grasps and releases a cord in response to a command, decelerates from a speed in synchronization with the cord to a slow speed, or decelerates from the slow speed to a slow speed. In the start-arrival pushing device of an automatic circulation type cableway that accelerates to a speed that is synchronized with the speed of the strip, it is driven at a variable speed by a variable voltage variable frequency inverter,
Electric power is supplied from the variable voltage variable frequency inverter to the primary side through a power supply trolley wire and a current collector corresponding to the power supply trolley wire, and the primary side and the current collector are connected to the pontoon or departure / arrival. A linear induction motor is provided which is arranged on a carriage that engages with the gripping machine in the pushing section, and the secondary side and the feeding trolley wire are arranged in the departure / arriving pushing section on the ground side. Departure / arrival pushing device for automatic circulation cableway. 2. A gripping machine that suspends a carrier and grasps and releases a cord in response to a command is decelerated from a speed synchronized with the cord to a slow speed or a very low speed, and from the stop or a very low speed to the rope. In a start / arrival pushing device for an automatic circulation cableway that accelerates to a speed that is synchronized with the speed of the strip, (a) is driven at a variable speed by a variable voltage variable frequency inverter, and from this variable voltage variable frequency inverter, a trolley wire for feeding to the primary side. And a carrier truck that is supplied with power via a current collector corresponding to the power supply trolley wire, and in which the primary side and the current collector are engaged with the gripper or the gripper in the departure / arrival pushing section. A linear induction motor in which the secondary side and the feeding trolley wire are arranged in the departure / arrival pushing section on the ground side, and (b) the primary of the linear induction motor. Side, a plurality of sensors for detecting a moving object of a gripping machine or a carriage, and arranged on the secondary side of the linear induction motor along the traveling magnetic field direction of the linear induction motor, and (c) a plurality of these sensors. The automatic circulation system is characterized by including a control means for detecting the speed of the moving object from the difference in the detection time of the sensor and controlling the output frequency of the variable voltage variable frequency inverter according to the difference with the planned pushing speed. Departure / arrival pusher for cableway.