JP5797453B2 - Safety device for cable-traction type inclined transportation equipment - Google Patents

Description

  The present invention relates to a safety device for a rope pulling type inclined transportation facility that pulls a vehicle by a rope on an inclined land to transport passengers and goods.

  The cable-drawing inclined transportation equipment that pulls and transports passenger cars and carts (hereinafter collectively referred to as vehicles) by means of ropes on sloping ground is a cable car that transports personnel as passenger equipment and industrial equipment. It is known as an ink line that transports goods. As a general configuration of the rope pulling type inclined transportation equipment, a vehicle is movably installed on a laid rail, and the rope connected to the vehicle is wound around and driven by a winch or a pulley, thereby driving the vehicle. Is configured to move along the rail.

  As a general configuration of the rope pulling type inclined transportation facility, a pulley for driving the rope is arranged at a stop on the summit side, the rope is wound around this pulley, and the vehicle is connected to both ends of the rope. Alternatively, a method is often employed in which a vehicle is connected to one end of a rope and a counterweight is connected to the other end so as to operate in a so-called vine manner (see, for example, Patent Document 1). In addition, there is also a method in which a vehicle is connected to the end portion of the rope, and the rope is wound or unwound by a winch provided at a stop on the mountaintop (for example, a patent) Reference 2).

  The above-mentioned pulley for driving the rope and the winch drum are connected to an electric motor through a speed reducer. The pulley is rotated by controlling the rotation speed of the electric motor, and the vehicle is pulled by the rope to operate. Is called. The input shaft of the reducer or the output shaft of the electric shaft is equipped with a drum-type or disc-type brake device. When the vehicle arrives at the stop, the brake device operates and detects the operation of this brake device. The electric power supply to the electric motor is cut off, and the rope or the stopped state of the vehicle is maintained by the braking force of the brake (see, for example, Patent Document 3).

JP 2000-219131 A JP 2007-190962 A JP 2008-201390 A

  As described above, since the stop state of the vehicle is maintained by the braking force of the brake provided in the prime mover, if the braking force is insufficient due to a failure or malfunction of the brake, the vehicle is held at a fixed position. It becomes difficult to cause reverse running or overrunning of the vehicle. The present invention has been made in view of such circumstances, and an object of the present invention is to provide a cable-traction-type tilt capable of safely stopping a vehicle even when there is a failure or malfunction of a brake. It is to provide a safety device for transportation equipment.

  In order to solve the above-mentioned problems, the invention of claim 1 is characterized in that a rail is laid between the stops having a height difference, a rope is connected to a vehicle traveling on the rail, and the rope is provided at the stop. In a rope pulling type inclined transportation facility in which the rope pulls the vehicle to carry it by being wound around the sheave of the prime mover and rotating the sheave, the vehicle brakes the vehicle. A vehicle brake; and a brake control device that controls the operation of the vehicle brake. The prime mover includes a rotation detector that detects rotation of the sheave, and is based on a signal from the rotation detector. And a driving control device for transmitting a signal for stopping the vehicle to the braking control device.

  According to the present invention, when the brake of the prime mover does not exhibit a prescribed braking force when the vehicle is stopped, the vehicle brake of the vehicle can be operated to safely stop the vehicle.

Longitudinal section of a track pulling type inclined transportation facility Side view of the summit stop Front view of the summit stop Vehicle side view Front sectional view of the lower part of the vehicle

    Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal section of a track showing an example of a track of a rope pulling type inclined transportation facility. As shown in the figure, the track is formed by connecting a foothill stop 10 at a low altitude and a mountain summit stop 11 at a high altitude, and a rail 12 is formed by connecting both stops 10 and 11. The ridges 13 are extended along the rails 12. One end of the rope 13 is connected to the vehicle 14, the intermediate part is wrapped around the prime mover 15 provided at the summit stop 11, and the other end is connected to the counterweight 16 on the rail 12. . Thus, the vehicle 14 and the counterweight 16 connected to the rope 13 in a slidable manner move in the opposite directions along the rail 12 between the two stops 10 and 11 by driving the prime mover 15. .

  2 and 3 are a side view and a front view of the summit stop 11, respectively. In each figure, the upper rope 13a connected to the vehicle 14 is wound around the upper guide roller 17 provided at the summit stop 11 and deflected downward, and is wound around the sheave 19 of the prime mover 15 installed at the lower part. It is hung. The rope 13 wound around the sheave 19 is again deflected upward and wound around the lower guide roller 18 to be deflected in the line direction. The counterweight 16 is connected to the end of the lower rope 13b extending to the track in this way.

  The prime mover 15 includes the sheave 19, the speed reducer 20, and the electric motor 21. When the electric motor 21 is driven, the sheave 19 rotates through the speed reducer 20, and thereby the rope 13 moves. The vehicle 14 moves on the track. A brake 22 is provided between the speed reducer 20 and the electric motor 21, and the rotation of the sheave 19 is braked via the speed reducer 20 when the brake 22 operates. A rotation detector 23 is provided at the end of the electric motor 21. The rotation detector 23 uses a rotary encoder or the like that transmits a signal according to the rotational displacement amount of the electric motor 21, and the signal transmitted from the rotation detector 23 is sent to the operation control device 24 that controls the rotation of the electric motor 21. Entered. Here, the rotation detector 23 detects the rotation displacement amount of the electric motor 21, but the rotation detector 23 may directly detect the rotation displacement amount of the sheave 19.

  Signals from various detectors that detect conditions necessary for driving are input to the driving control device 24, and the rotational speed of the electric motor 21 is controlled based on these signals to accelerate or decelerate the vehicle 14. Is automatically performed, and the operation of the brake 22 is controlled according to the situation. As one of the detectors, a stop switch 25 for detecting the vehicle 14 is provided at the stop position of the vehicle 14 at the summit stop 11. The stop switch 25 detects that the vehicle 14 that has entered the stop has reached the stop position, and outputs this signal to the operation control device 24. In response to this signal, the operation control device 24 operates the brake 22 to stop the movement of the sheave 19 or the rope 13 and cuts off the power supply to the motor 21. As a result, the vehicle 14 stops at the predetermined stop position and is detained at the stop position by the braking force of the brake 22.

  Next, the configuration of the vehicle 14 will be described. FIG. 4 is a side view of the vehicle 14, and FIG. 5 is a front sectional view of the lower portion of the vehicle 14. A vehicle brake 40 that acts on the rail 12 to brake the vehicle 14 is provided at a lower portion of the side portion of the vehicle 14. As shown in the left half of FIG. 5, the vehicle brake 40 pivotally supports the brake levers 28 and 29 in the vicinity of the central portions thereof so as to be pivotable in the vertical direction by pins 30 and 31. By applying the spring force of the spring 32 to the part, the rail 12 is clamped at the other end part to obtain a braking force. In addition, a hydraulic cylinder 33 is provided on the side opposite to the spring 32 with respect to the brake levers 28 and 29, and the brake levers 28 and 29 are rotated against the spring force by the operation of the hydraulic cylinder 33. 29 are separated from each other to release the braking force. The hydraulic cylinder 33 is piped between the hydraulic unit 34 mounted on the vehicle 14, and the hydraulic cylinder 33 is operated by operating the hydraulic unit 34.

  The hydraulic unit 34 is configured with a hydraulic circuit so that slow braking and sudden braking are performed according to the situation, and control such as selection of slow braking and sudden braking, and start and release of braking is performed by a brake provided in the vehicle 14. This is performed by the control device 26. The braking control device 26 includes a communication circuit, and similarly, signals are transmitted and received between the operation control device 24 of the summit stop 11 equipped with the communication circuit in both directions by radio, induction radio, or the like. be able to.

  In the above configuration, the operation in the case where the brake 22 of the prime mover 15 cannot exert the prescribed braking force due to failure or malfunction will be described below.

First, an embodiment of the present invention will be described. When the vehicle 14 that has decelerated and entered the summit stop 11 at a low speed reaches the stop position, this is detected and the stop switch 25 is operated, and this signal is input to the operation control device 24. Receiving this signal, the operation control device 24 operates the brake 22 and cuts off the power supply to the electric motor 21. At this time, since the brake 22 does not have a prescribed braking force, the brake 22 starts moving so that the heavier one of the vehicle 14 and the counterweight 16 connected to both ends of the rope 13 is lowered.

  Accordingly, the rope 13 starts to move, so that the sheave 19 is rotated by the rope 13 and a signal is transmitted from the rotation detector 23 that detects this. Receiving this signal, the operation control device 24 detects the rotation of the sheave 19 regardless of the stop condition, so determines that this is abnormal, and sends a stop signal to the braking control device 26 of the vehicle 14. In response to this signal, the braking control device 26 controls the hydraulic unit 34 so that the vehicle brake 40 performs sudden braking, and the vehicle brake 40 operates to stop the vehicle 14 quickly.

  In this way, even when the brake 22 of the prime mover 15 does not exhibit the prescribed braking force when the vehicle 14 arrives, the vehicle 14 stops quickly, so that safety is ensured. At this time, for example, if the operation panel or the like is configured to display an abnormality occurrence or emit an alarm sound, the driver or the like can quickly detect the abnormality so that the subsequent response can be easily performed. It is more preferable.

Next, Reference Example 1 of the present invention will be described. In Reference Example 1 of the present invention, the operation until the vehicle 14 and the counterweight 16 start moving after the brake 22 is operated is the same as described above. Thereafter, when the vehicle 14 starts to move, the detection signal of the stop switch 25 that has detected the vehicle 14 is interrupted. As a result, the operation control device 24 detects that the vehicle 14 has not stopped normally, and transmits a stop signal to the braking control device 26 of the vehicle 14 in the same manner as described above, thereby stopping the vehicle 14. Here, in addition to the stop switch 25, a vehicle detection switch for detecting the vehicle 14 is provided in the vicinity of the stop switch 25, and an abnormality is determined by a combination of the operations of both switches so that the vehicle 14 is stopped. Also good. In the case of such a configuration, abnormality can be determined by signals from a plurality of switches, so that determination can be made more reliably.

Next, Reference Example 2 of the present invention will be described. 4 and 5, a traveling wheel rotation detector 41 is provided in the vicinity of the traveling wheel 35 of the vehicle 14. The traveling wheel rotation detector 41 is fixed to the side surface of the lower portion of the vehicle 14 together with the hollow bracket 38, and an intermediate shaft 39 connected to the input shaft of the traveling wheel rotation detector 41 is provided inside the bracket 38. It is supported. A driven gear 37 is fixed to the end of the intermediate shaft 39, while a driving gear 36 is fixed to the traveling wheel 35, and both gears 36 and 37 are engaged to transmit rotation. As the traveling wheel rotation detector 41, for example, a rotary encoder or a tachometer is used, which outputs a signal in proportion to the rotation of the traveling wheel 35, and this signal is input to the braking control device 26.

  With the above configuration, the operation is performed as follows. When the vehicle 14 reaches the stop position, this is detected and the stop switch 25 is operated, and this signal is input to the operation control device 24. Receiving this signal, the operation control device 24 operates the brake 22 and cuts off the power supply to the electric motor 21. The operation so far is the same as described above. Next, the operation control device 24 transmits a signal indicating that the operation has been stopped to the brake control device 26 of the vehicle 14, and this is stored in the brake control device 26. Next, when the counterweight 16 and the vehicle 14 start to move due to insufficient braking force of the brake 22, the traveling wheel rotation detector 41 detects the rotation of the traveling wheel 35, and this signal is input to the braking control device 26. Receiving this signal, the operation control device 24 detects the rotation of the traveling wheel 35 in spite of the stopped condition, so that it is determined as abnormal, and the hydraulic pressure is applied so that the vehicle brake 40 performs sudden braking. The unit 34 is controlled, the vehicle brake 40 operates, and the vehicle 14 stops quickly.

At this time, for example, the fact that the vehicle brake 40 has been operated inside the vehicle 14 or the communication between the brake control device 26 and the operation control device 24 is displayed on the operation control panel of the summit stop 11, etc. If it is configured to display the occurrence of an abnormality or emit an alarm sound, a driver or the like can quickly detect the abnormality. Thus, according to the reference example 2 of the present invention, the movement of the vehicle 14 itself is detected and the vehicle 14 stops, so that more reliable safety is ensured.

DESCRIPTION OF SYMBOLS 10 Yamagata stop 11 Summit stop 12 Rails 13, 13a, 13b Strip 14 Vehicle 15 Driving device 16 Counterweight 17 Upper guide roller 18 Lower guide roller 19 Sheave 20 Reduction gear 21 Electric motor 22 Brake 23 Rotation detector 24 Operation control Device 25 Stop switch 26 Brake control device 28 Brake lever 29 Brake lever 30 Pin 31 Pin 32 Spring 33 Hydraulic cylinder 34 Hydraulic unit 35 Traveling wheel 36 Drive gear 37 Driven gear 38 Bracket 39 Intermediate shaft 40 Vehicle brake 41 Traveling wheel rotation detector

Claims (1)

Rails are laid between the stops with different heights, the ropes are connected to the vehicles traveling on the rails, the ropes are wound around the sheaves of the prime movers provided at the stops, and the sheaves are rotated. In the rope pulling type inclined transportation facility in which the rope pulls the vehicle to drive the vehicle by driving,
The vehicle includes a vehicle brake that brakes the vehicle, and a braking control device that controls the operation of the vehicle brake,
The prime mover comprises a rotation detector that detects rotation of the sheave,
A safety device for a rope pulling type inclined transportation facility, comprising: an operation control device that transmits a signal for stopping the vehicle to the braking control device based on a signal from the rotation detector.

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