JP4739251B2 - Cable car start control device - Google Patents

Description

  The present invention relates to a cable car start-up control device for reducing the sway of a cable or vehicle generated at the time of start-up of a cable car.

  A cable car connects a vehicle to both ends of a rope, wraps the rope around a pulley installed at the top of the mountain, and rotates the pulley to drive the vehicle along a rail laid on the ground. It is used as a transportation for climbing slopes for sightseeing in high-altitude scenic areas and worshiping shrines and temples on the top of the mountain.

  FIG. 4 is an explanatory diagram showing an outline of the cable car. In the figure, two vehicles 11 are arranged on a rail 10 laid on an inclined surface, and reciprocate along the rail 10 between a foothill side stop and a summit side stop. Each vehicle 11 is connected to both ends of a single strip 18, and the middle of the strip 18 is wound around a driving pulley 12 and a driving pulley 13 provided on the summit side. The positional relationship between the two vehicles 11 is such that when one vehicle 11 is located at the stop on the summit side, the other vehicles 11 are located at the stop on the foot of the mountain. 11 and 11 operate | move by what is called a slip method which drive | works in a mutually reverse direction.

  The driving pulley 13 is driven by an electric motor 17. That is, the drive pulley 13 is connected to the output shaft 15 of the speed reducer 14, and an electric motor 17 is connected to the input shaft 16 of the speed reducer 14, and the drive pulley 13 is rotated by controlling the drive of the motor 17. Then, the rope 18 is wound and unwound. A disk plate 19 is fixed to the input shaft 16 of the speed reducer 14. A disk brake 20 acts on the disk plate 19 to brake the rotation of the electric motor 17 or the driving pulley 13. Further, a pulley brake 21 is provided at the peripheral edge of the driving pulley 13, and this pulley brake 21 acts on the peripheral edge of the driving pulley 13 to directly brake the rotation of the driving pulley 13. The disc brake 20 and pulley brake 21 operate to stop the operation of the cable car when the vehicle 11 stops at the stop, or when there is an abnormality in the equipment or the vehicle.

  The disc brake 20 and pulley brake 21 are generally hydraulic release brakes (see, for example, Patent Document 1). This hydraulically released brake is configured to press the brake shoe of the brake by the elastic force of the compressed spring during braking, and pinch the disk plate 19 and the driving pulley 13 with this brake shoe to obtain a braking force. At the same time, when releasing the braking force, pressure oil is sent from a separately provided hydraulic unit to a hydraulic cylinder provided in parallel with the spring expansion and contraction direction, and the hydraulic cylinder is extended to widen the brake shoe and release the braking force. It is configured as follows. During braking, the hydraulic cylinder is retracted by discharging the hydraulic oil in the hydraulic cylinder, and the elastic force of the spring acts on the brake shoe to obtain a braking force.

  In the above configuration, the vehicle 11 is operated as follows. First, each vehicle 11 stops at the stop on the summit side and the foot of the mountain, and passengers get on and off. At this time, the disc brake 20 and the pulley brake 21 act on the disc plate 19 and the driving pulley 13, respectively, and hold the vehicle 11 so as not to move from the stop position. When passenger boarding is completed, pressure oil is supplied to the hydraulic cylinder of the pulley brake 21 by the reset button operation of the driving operation panel, and the braking force of the pulley brake 21 is released. Subsequently, when the operation button is operated, pressure oil is supplied to the hydraulic cylinder of the disc brake 20, the braking force of the disc brake 20 is released, and at the same time, the drive of the electric motor 17 is started by the operation control device. Start running. In the operation control device, an operation curve that sets a traveling speed with respect to the traveling position of the vehicle 11 is set, and the traveling of the vehicle 11 along the track is controlled by the rotation of the electric motor 17 along the operation curve. Done automatically.

  Next, when the vehicle 11 approaches each stop, the speed of the vehicle 11 is gradually decelerated and then enters the stop at a slow speed. When the vehicle 11 reaches the stop position, the electric motor 17 stops and the hydraulic pressures of the hydraulic cylinders of the disc brake 20 and pulley brake 21 are discharged to perform the braking operation, and the disc plate 19 or the driving pulley 13 stops. And is held unrotatable. Thereafter, the passenger 11 gets on and off the stopped vehicle 11 and is repeatedly operated in this way.

JP-A-7-17401

  When the cable car is started up, that is, when the vehicle 11 starts to travel, the following control is performed in order to start driving safely. When the operation button is operated, the electric motor 17 is first driven. At this time, the disc brake 20 is in a braking state. Then, after detecting that about 5% of torque is generated in the electric motor 17 with respect to the rated value, the braking of the disc brake 20 is released and the operation is started. This is for confirming that the electric motor 17 is normally controlled and operated, and the braking is released despite the abnormality of the electric motor 17 to prevent the vehicle 11 from running away. It is to do.

  As described above, the cable car operates the two vehicles 11 in a sliding manner, and the load on the winding side and the load on the feeding side that act on the driving pulley 13 are determined by the number of people on the vehicle 11. It depends on the number and the length of the cable 18 fed out in the track. Therefore, the electric motor 17 is controlled so as to generate a positive torque when the load on the winding side is larger than the load on the feeding side, and generate a resistance torque in the opposite case. Here, the operation is performed under the condition that the load condition before the start of the operation is such that the load on the feeding side is larger than the load on the hoisting side, as in the case where the vehicle 11 on the summit side is full and the vehicle 11 on the mountainside is empty When starting, as described above, immediately after the start of operation, the disc brake 20 is in a braking state and generates a positive torque in the electric motor 17, and when the disc brake 20 is released thereafter, the electric motor 17 It will be in the state driven from the driving pulley 13 side. The operation control device detects this state and controls the motor 17 so as to generate a resistance torque. Due to the rapid torque control at this time, the speed change or swaying of the rope 18 is instantaneous, however. And this propagates to the vehicle 11 and adversely affects the ride comfort.

  An object of the present invention has been made in view of such circumstances, and the cable is smoothly driven or moved at the start of operation of the cable car, so that the ride quality of the vehicle is improved. It is to provide a control device.

  In response to this problem, the cable car activation control device according to claim 1 connects the vehicle to the rope, winds the rope around the driving pulley, and drives the driving pulley with an electric motor to drive the vehicle. And a hydraulic unit comprising a hydraulic circuit that operates the auxiliary brake, and the hydraulic circuit includes the auxiliary brake. A throttle valve is provided in an oil passage connected to a motive, and hydraulic oil is supplied to the auxiliary brake via the throttle valve to release the braking force when the cable car is started.

  According to a second aspect of the present invention, there is provided a cable car start control device including a proportional electromagnetic flow rate adjusting valve instead of the throttle valve.

  According to the present invention, when the cable car is started, the hydraulic oil supplied to the auxiliary brake is supplied via the throttle valve or the proportional electromagnetic flow rate adjusting valve, whereby the braking force against the driving pulley is increased. Therefore, the electric motor that drives the driving pulley needs only to perform torque control correspondingly, and thus the ride comfort of the vehicle is improved without causing any swaying or swaying of the vehicle.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a configuration of a cable car in the present embodiment. The cable car according to the present embodiment has the same configuration as that of the conventional cable car shown in FIG. 4, and the same components as those of the conventional cable car are denoted by the same reference numerals as those in FIG. The outline will be described by omitting. The electric motor 17 whose rotation is controlled by the operation control device rotates the driving pulley 13 via the speed reducer 14. A rope 18 is wound around the driving pulley 13, and the vehicle 11 is attached to both ends of the rope 18, and the driving pulley 13 is operated in a slidable manner by the rotation of the driving pulley 13. A disk plate 19 is fixed to the input shaft 16 of the speed reducer 14, and a disk brake 20 is provided on the outer periphery of the disk plate 19. A pulley brake 21 and an auxiliary brake 22 are provided on the outer peripheral portion of the driving pulley 13. The pulley brake 21 is used to maintain a stopped state when the vehicle 11 is stopped at the stop, and the auxiliary brake 22 is used to smoothly start the vehicle 11 when starting operation. Used.

  FIG. 2 is an explanatory diagram showing the structure of the pulley brake 21 and the auxiliary brake 22. In the drawing, the substantially crank-shaped arms 30a and 30b are symmetrical to each other in the vertical direction, and a pin 31 is inserted through the center of each of the arms 30a and 30b. A brake shoe 33 is fixed to the end of each arm 30a, 30b on the side of the driving pulley 13 so as to face each other inward. On the other hand, spring receiving blocks 34, 34 are pivotally supported by pins 35, 35 at the other ends of the arms 30 a, 30 b, and the spring receiving blocks 34 are respectively connected to the spring receiving blocks 34, 34. A rod 36 is slidably penetrated. A plurality of flat springs 37 and washers 38, 38 are provided on both outer sides of the spring receiving blocks 34, 34, and nuts 39, 39 are screwed from the outside of the washers 38, 38 at both ends of the rod 36. Match. In such a configuration, when the nuts 39 at both ends are closed inward, the flat spring 37 is compressed between the washer 38 and the spring receiving block 34 to generate a repulsive force. This repulsive force acts on the spring receiving block 34, and also acts as a braking force that causes the brake shoes 33, 33 provided at the other end to sandwich and stop the braking member 32 of the driving pulley 13.

  Next, a hydraulic cylinder 40 extending and contracting in the axial direction of the rod 36 is provided between the rod 36 and the pin 31 in parallel with the rod 36, and the hydraulic cylinder 40 is pivoted on the arms 30a and 30b by the pin 42. It is fitted between the supported cylinder blocks 41a and 41b. The hydraulic cylinder 40 is connected to a hydraulic unit provided at a different position by piping. The hydraulic cylinder 40 extends when pressure oil is fed from the hydraulic unit, thereby pushing the cylinder blocks 41a and 41b or the pins 42 and 42. In addition to being spread, the upper and lower brake shoes 33, 33 are pushed open and the braking is released. Conversely, when the pressure oil in the hydraulic cylinder 40 is sent to the hydraulic unit from this state, the hydraulic cylinder 40 is retracted, the upper and lower brake shoes 33, 33 are closed, and the braking force is applied to the braking member 32.

  The above description has been made for the pulley brake 21 and the auxiliary brake 22, but the disk brake 20 acting on the disk plate 19 also operates on the same operating principle. That is, the disc brake 20 is provided with a brake shoe that sandwiches the disc plate 19, and a spring force is applied to the shoe to obtain a braking force. Then, a hydraulic cylinder for opening and closing the brake shoe is provided, braking is released by feeding pressure oil into the hydraulic cylinder, and braking is performed by sending it out.

  FIG. 3 is a hydraulic circuit diagram showing a circuit for applying hydraulic pressure to the cylinders of each brake, and only the hydraulic symbols necessary for explaining the operation are shown for easy understanding. In the figure, 40a is a hydraulic cylinder for pulley brakes, 40b is a hydraulic cylinder for disk brakes, and 40c is a hydraulic cylinder for auxiliary brakes, and the operation or action of the hydraulic cylinder 40 described above is performed in each brake. . The cylinders 40a, 40b, and 40c are connected to the hydraulic unit 60 by pipes 61a, 61b, and 61c, and the hydraulic oil is fed or sent out by the action of the hydraulic unit 60 to expand and contract.

  The hydraulic unit 60 includes electromagnetic switching valves 71, 72, 73, 74, throttle valves 81, 83, 84, a pressure switch 90, a motor 91, a pump 92, a hydraulic oil tank 93, and a check valve 94. , 95, and 96 constitute a hydraulic circuit. In this hydraulic circuit, first, the case where the pulley brake hydraulic cylinder 40a is operated will be described. When the pump 92 is driven by the motor 91, the hydraulic oil in the hydraulic oil tank 93 is supplied from the oil passage 100a to the pulley brake hydraulic cylinder 40a via the check valves 94 and 95. At this time, the electromagnetic switching valve 71 provided in the oil passage 100b branched from the oil passage 100a is excited by energization to close the valve. Accordingly, the hydraulic cylinder 40a for the pulley brake is extended by the supply of the hydraulic oil, and the brake shoe 33 of the pulley brake 21 is pushed out to release the braking force. When the brake shoe 33 is fully opened, the pressure in the oil passage 100a rises, and this is detected by the pressure switch 90 and the drive of the motor 91 is stopped. The circuits of the oil passage 100a and the oil passage 100b are closed by a check valve 95 and an electromagnetic switching valve 71, respectively. Even after the driving of the motor 91 is stopped, the pressure in the circuit is maintained and the braking force is released. State is maintained.

  In this state, when braking is performed by the pulley brake 21, the braking is performed by cutting off the energization to the electromagnetic switching valve 71 and opening the circuit of the oil passage 100b. The pulley brake hydraulic cylinder 40a is acted on by the compression force of the brake spring spring 37. When the circuit is opened, the pulley brake hydraulic cylinder 40a is compressed by the spring spring 37, and the hydraulic oil operates. Returning to the oil tank 93, the braking force acts on the driving pulley 13. Here, the oil passage 100b is provided with a throttle valve 81. By limiting the amount of oil flowing through the throttle valve 81, braking is not performed suddenly.

  Next, the case where the disc brake cylinder 40b and the auxiliary brake cylinder 40c operate will be described. First, in the circuit, the electromagnetic switching valve 72 of the oil passage 101c is cut off and closed, and the electromagnetic switching valve 73 of the oil passage 101b is turned on and closes the valve. When the electromagnetic switching valve 74 is energized to open the valve and the pump 92 is driven by the motor 91, the hydraulic oil in the hydraulic oil tank 93 is transferred from the oil passage 101b and the oil passage 101d to the disc brake hydraulic cylinder 40b and It is supplied to the auxiliary brake cylinder 40c. As a result, the braking force in the disc brake 20 and the auxiliary brake 22 is released in the same manner as in the case of the pulley brake 21 described above, but a throttle valve is provided in the oil passage 101d on the auxiliary brake cylinder 40c side. 84, and the speed at which the auxiliary brake 22 releases the braking force is slower than the speed at which the disc brake 20 releases the braking force by limiting the amount of oil flowing through the throttle valve 84. It is trying to become.

  When braking is performed by the disc brake 20 and the auxiliary brake 22, two modes are used. First, the first mode is a braking mode when the vehicle 11 is traveling on the track, and is a braking mode in which the vehicle 11 moving at a high speed is gently stopped. When braking is performed in this first mode, the electromagnetic switching valve 72 of the oil passage 101c is kept closed, the current supply to the electromagnetic switching valve 73 provided in the oil passage 101b is cut off, the valve is opened, and each hydraulic cylinder 40b is opened. , 40c is returned to the hydraulic oil tank 93 to perform braking in the same manner as the pulley brake 21 described above. At this time, the amount of oil flowing through the throttle valve 83 provided in the oil passage 101b is limited, and the operation of the disc brake hydraulic cylinder 40b or the disc brake 20 is mainly moderated, so that the gentle braking is performed. Is called.

  The second mode is a braking mode when the vehicle 11 arrives at the stop and stops at a fixed position, or when the speed of the vehicle 11 is low. In this case, for example, when the vehicle 11 stops at the stop, it is detected that the vehicle 11 has reached the stop position by a vehicle detector separately provided at the stop, and the electromagnetic switching valve 73 of the oil passage 101b is detected by this signal. The solenoid valve 72 in the oil passage 101c is energized to open the valve. By doing so, the pressure oil mainly acting on the disc brake hydraulic cylinder 40b quickly returns to the hydraulic oil tank 93 via the oil passages 101b and 101c, so that the vehicle 11 can be stopped immediately. .

  With the above configuration, the operation when the cable car is started, that is, when the vehicle 11 departs will be described with reference to FIGS. 1 and 3. When the cable car is started, first, each device is initialized by a reset button operation by the driver. By this operation, in the hydraulic unit 60, the pump 92 is driven by the motor 91 to supply the hydraulic oil to the hydraulic cylinder 40a for the pulley brake, and the braking force of the pulley brake 21 is released. At this time, on the side of the disc brake 20 and the auxiliary brake 22, the valve of the electromagnetic switching valve 74 provided in the oil passage 101a in the hydraulic circuit is closed. Therefore, the disc brake hydraulic cylinder 40b and the auxiliary brake hydraulic cylinder are closed. In 40c, no hydraulic oil is supplied and the braking force is maintained.

  Next, when the driving start button is operated by the driver, the electric motor 17 that drives the driving pulley 13 is started first. At this time, the disc brake 20 and the auxiliary brake 22 still retain the braking force. . Thereafter, when the output of the electric motor 17 increases and reaches 5% of the rated output, the operation control device detects this and performs control so that the electromagnetic switching valve 74 of the hydraulic unit 60 is energized. In the hydraulic unit 60, the electromagnetic switching valve 74 opens when energized, and the motor 91 drives the pump 92 to supply hydraulic oil to the disc brake hydraulic cylinder 40b and the auxiliary brake hydraulic cylinder 40c. The braking force of the motives 20 and 22 is released. Here, the disc brake hydraulic cylinder 40b operates so as to immediately release the braking force by supplying hydraulic oil, but the auxiliary brake hydraulic cylinder 40c is circulated by a throttle valve 84 provided in the oil passage 101d. Since the amount of oil to be used is limited, it does not operate immediately and grows slowly. Therefore, the braking force of the auxiliary brake 22 acting on the driving pulley 13 is released gradually with respect to the progress of the vehicle 11.

  As described above, when the cable car is started, after the motor 17 is started, the disc brake 20 immediately releases the braking force, but the auxiliary brake 22 gradually loosens the braking force. The imbalance between the applied winding and unwinding loads acts gently on the electric motor 17, so that the torque control for the electric motor 17 by the operation control device is not performed suddenly, and therefore smooth start-up is performed. It can be carried out.

  In the above description, the oil passage 101d in the hydraulic circuit is provided with the throttle valve 84, thereby adjusting the flow rate of the hydraulic oil to the auxiliary brake hydraulic cylinder 40c. A proportional electromagnetic flow control valve can also be used. The proportional electromagnetic flow rate adjusting valve variably controls the flow rate of the operating oil flowing by controlling the input voltage. For example, the proportional electromagnetic flow rate adjusting valve is associated with the torque control of the electric motor 17 by the operation control device. By controlling by a preset program, the speed at which the auxiliary brake hydraulic cylinder 40c expands, that is, the braking force release speed is variably controlled, and finer control is performed to achieve smoother control. The cable car can be activated.

Overall configuration diagram of the cable car Explanatory drawing showing the structure of the brake Hydraulic circuit diagram of the brake Overall configuration diagram of the cable car

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Rail 11 Vehicle 12 Conveying pulley 13 Drive pulley 14 Reduction gear 15 Output shaft 16 Input shaft 17 Electric motor 18 Line 19 Disc board 20 Disc brake 21 Pulley brake 22 Auxiliary brake 30a, 30b Arm 31 Pin 32 Braking member 33 Brake shoe 34 Spring receiving block 35 Pin 36 Rod 37 Flat spring 38 Washer 39 Nut 40 Hydraulic cylinder 40a Pulley brake hydraulic cylinder 40b Disc brake hydraulic cylinder 40c Auxiliary brake hydraulic cylinder 41a, 41b Cylinder block 42 Pin 61a, 61b 61c Piping 71, 72, 73, 74 Electromagnetic switching valves 81, 83, 84 Throttle valve 90 Pressure switch 91 Motor 92 Pump 93 Hydraulic oil tanks 94, 95, 96 Check valves 100a, 100b Oil passages 101a, 101b, 101c, 10 d oil passage

Claims (2)

  In a cable car that connects the vehicle to the rope and wraps the rope around the prime mover and drives the prime mover by an electric motor to operate the vehicle, a hydraulic release assist that brakes the rotation of the prime mover A hydraulic unit including a hydraulic circuit for operating the auxiliary brake and the hydraulic circuit, the hydraulic circuit including a throttle valve in an oil passage connected to the auxiliary brake, and the hydraulic oil is supplied when the cable car is activated. An activation control device for a cable car, which is supplied to the auxiliary brake via the throttle valve to release the braking force.   The cable car start-up control device according to claim 1, further comprising a proportional electromagnetic flow rate adjusting valve instead of the throttle valve.

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