JP2011025724A - Preliminary drive system of inclined ground transport apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To miniaturize and simplify a preliminary drive system for collecting a vehicle on a track when a main driving device of an inclined ground transport apparatus is unexpectedly stopped. <P>SOLUTION: In an inclined ground transport apparatus for transporting persons or cargoes by pulling a vehicle on a track by a rope, a preliminary drive system for operating the vehicle in place of a main driving device includes a hydraulic motor which is pivotably provided on a mountain foot station and shaft-coupled with a driving block with a rope being wound therearound, a hydraulic pump for feeding pressurized oil to the hydraulic motor, a counterbalance valve which is interposed in a hydraulic line between the hydraulic motor and the hydraulic pump to control the rotation of the hydraulic motor, an oil tank for storing pressurized oil, and a rotation-driving means for performing the rotation of the hydraulic pump. The rope is unwound in the downward direction to lower the vehicle stopped on the track toward the mountain foot station, and operates and collects the vehicle by driving the system while keeping the predetermined speed by the counterbalance valve. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

   The present invention relates to a pre-driving system for recovering a vehicle to a stop when a main driving device stops at an incline transportation facility and the vehicle stops on a track.

  Inclined transport equipment (cable car, lift car, etc.) has a track on a sloping ground, and has a foothill stop at the bottom end of the track and a summit stop at the top end. The peak stop is provided with a driving pulley to which the rotational driving force from the electric motor and the speed reducer is transmitted. On the driving pulley, a rope (tow rope) with one end locked on the vehicle is hung. In this way, the electric motor is activated, and the vehicle is transported along the trajectory between the foothill stop and the summit stop with the ropes to transport people or goods.

  FIG. 5 is a side view illustrating a schematic facility configuration of a conventional inclined land transportation facility (lift car) 100. A linear track 104 is laid on the inclined ground. The vehicle 102 includes two traveling wheels 103 and 103 and traveling wheels 103 and 103 that are rotatable in the forward and backward directions. In addition, as shown in the drawing, one end portion of the rope 101 is fastened to the end portion of the vehicle 102 and extends in the direction of the arrow 120.

  Next, a driving device 107 is arranged at the summit stop 106. The drive device 107 includes a single drive pulley 108 and two-wheel guide pulleys 109 and 110. The drive pulley 108 is pivotally mounted on a base 113 and is rotationally driven by an electric motor 112. The guide pulleys 109 and 110 are arranged on a frame 111. Pivot to each other.

  As described above, the cable 101 having one end secured to the vehicle 102 is extended toward the summit stop 106 in the direction of the arrow 120 and is guided to the driving pulley 108 by the guide pulley 109. Next, the strip 108 guided to the drive pulley 108 is hung for a half turn and turned toward the foothill stop (not shown) indicated by the arrow 121, and the guide strip 110 pulls the vehicle 102 on the side. The other end portion is guided to a counterweight 105 provided so as to be movable.

  Thus, when the driving device 107 is activated and the driving pulley 108 is rotated by the electric motor 112, the vehicle 102 is pulled by the rope 101, and the traveling wheels 103, 103 and the traveling wheels 103, 103 roll on the track 104, and an arrow 120 is obtained. A round trip is made to the summit stop 106 in the direction or the foothill stop (not shown) in the direction of arrow 121. At the same time, the counterweight 105 holding the other end of the rope 101 is guided to the track 104, maintains a relative positional relationship with the vehicle 102, and the vehicle 102 moves toward the summit stop 106 in the direction of arrow 120. When the counterweight 105 moves to the foothill stop (not shown) in the direction of arrow 121, and on the contrary, when the vehicle 102 moves to the foothill stop (not shown) in the direction of arrow 121, the counterweight 105 moves to the summit in the direction of arrow 120. Move towards the stop 106.

Japanese Patent Laid-Open No. 10-1044

  As described above, the inclined transport equipment (cable car, lift car) 100 is generally provided on the side of the summit stop 106 for the drive device 107 for towing the vehicle 102 on the track 104 laid on the inclined ground with the rope 101. Has been deployed. Therefore, when power supply to the electric motor 112 is stopped and the vehicle 102 stops in the middle of traveling, a spare drive device for towing the vehicle 102 to the mountain peak stop 106 is also arranged at the mountain peak stop 106. That is, the rope 101 is wound up to the summit stop 106 side of the arrow 120 by the driving pulley 108, and the vehicle 102 is pulled to the summit stop 106. Therefore, the spare drive device needs a driving force sufficient to pull the full vehicle 102 toward the summit stop 106, and the equipment constituting the spare drive device becomes large.

  An object of the present invention is the above-described slope transportation facility, which is a preliminary drive system for operating a vehicle when the main drive device stops unexpectedly. A drive pulley is also provided on the foot of the foothill stop to pull the vehicle. It is an object to reduce the size of the preliminary drive system of the slope transportation facility by hanging the rope and applying a hydraulic braking drive force to the drive pulley so as to run the vehicle down from the summit stop. To do.

  This is a slope transportation facility where a vehicle is pulled by a rope (rope) on a rail laid between a foothill and a summit stop on a slope such as a mountainous area, and the rope is driven in normal operation. In addition to the main drive device, a spare drive system for operating the vehicle in place of the main drive device when the vehicle stops on the track in the track due to an abnormality of the main drive device, Pulleys pivoted at each of the stop and the summit stop, ropes that are wound around the pulleys by half a circumference, and both ends are locked in front and back in the traveling direction of the vehicle, and the ridges A hydraulic motor axially connected to a pulley pivoted at a stop, a hydraulic pump that supplies pressure oil to the hydraulic motor, and a hydraulic line between the hydraulic motor and the pressure oil pump that controls rotation of the hydraulic motor Counter balance valve and oil for storing pressure oil The tank and the rotational drive means for rotationally driving the hydraulic pump use an engine, and the vehicle stopped by driving the vehicle stopped on the track toward the foothill stop and driving the vehicle downward. to recover.

  Alternatively, the driving means for rotating the hydraulic pump uses an electric motor supplied with electric power by a generator instead of the engine.

  Alternatively, an oil cooler is interposed in the return line of the counter balance valve to the oil tank, and the electric motor that rotates the fan of the oil cooler is supplied with electric power from a generator that supplies electric power to the electric motor that rotates the hydraulic motor. To do.

  Alternatively, a flow rate adjusting valve is used instead of the counter balance valve, and the rotational speed of the hydraulic motor, that is, the speed at which the rope is lowered by the driving pulley is kept low.

  In order to operate the vehicle instead of the main drive device when the main drive device that rotates and drives the drive pulley on which the rope that pulls the vehicle is tilted stops at an inclined transportation facility, and the vehicle stops on the track The preliminary drive system of the present invention has a configuration in which a drive pulley is pivoted on the foot side, driven by a hydraulic motor, and the speed is maintained by a counter balance valve. In this way, the rope that pulls the vehicle is lowered and the vehicle is operated toward the foothill stop. At that time, the shear energy acts on the pressure oil passing through the counter balance valve and the flow rate adjusting valve, and the potential energy of the vehicle becomes thermal energy, which raises the temperature of the pressure oil. After that, when the pressure oil whose temperature has risen returns to the oil tank, it mixes with the pressure oil in the oil tank and releases thermal energy into the atmosphere while being balanced in temperature. Therefore, there is an effect that the spare drive system can be made smaller than the spare drive device in which the drive pulley is provided at the conventional summit stop and the scoop that pulls the vehicle is wound up to collect the vehicle to the summit stop.

The schematic diagram of the slope transport equipment equipped with the preliminary drive system of the slope transport equipment of this invention. 1 is a block diagram of a preliminary drive system according to claim 1 of the present invention. FIG. 3 is a block diagram of a preliminary drive system according to claim 2 of the present invention. FIG. 4 is a block diagram of a preliminary drive system according to claim 3 of the present invention. FIG. 4 is a block diagram of a preliminary drive system according to claim 3 of the present invention. The schematic diagram explaining schematic structure of the conventional sloping ground transport equipment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic side view illustrating a schematic configuration of a sloping ground transportation facility 1 according to the present invention. A substantially linear track 4 is laid between the foothill stop 2 and the summit stop 3 provided on the slope. In each stop, a driving pulley 11 and a driven pulley 31 are pivoted so as to be rotatable in the vertical direction.

  Between the driving pulley 11 and the driven pulley 31, a rope (traction cable) 6 is wound half a turn, one end is moored on the front side in the traveling direction of the vehicle 5, and the other end is moored on the rear side. The vehicle 5 is interposed and connected to an endless return. In this way, when the drive pulley 11 provided on the left foot stop 2 shown in the figure where the rope (traction cable) 6 is wound as described above is driven forward and reverse, the vehicle 5 is moved together with the movement of the rope (traction cable) 6. However, it travels back and forth on a track 4 laid between the foothill stop 2 and the summit stop 3.

  Next, a first embodiment according to claim 1 will be described. FIG. 2 shows a cable drive in which a cable 6 is arranged at the foot of a mountain stop 2 and tow a vehicle 5 as described above. The drive shaft 12 of the pulley 11 and the hydraulic motor 13 are in axial contact. Next, a counter balance valve 15 is connected to the hydraulic motor 13 through lines c and d of the hydraulic circuit. Further, the counter balance valve 15 is connected to the discharge side of the hydraulic pump 14 through a line b. The counter balance valve 15 is connected to the line e to return the pressure oil to the oil tank 16. The line a is connected to the suction side of the hydraulic pump 14 so that the oil stored in the oil tank 16 is sucked. The hydraulic pump 13 is directly driven to rotate in axial contact with the engine EG.

  When the vehicle 5 is operated to the foothill stop 2 in the direction of arrow 9 shown in FIG. 1 by the preliminary drive system configured as described above, when the hydraulic pump 14 is rotationally driven by the engine EG, the hydraulic pressure is supplied from the line a. The air is sucked in the direction of the arrow 21 and discharged to the counter balance valve 15 through the line b to the arrow 22. Further, the counter balance valve 15 discharges and supplies pressure oil to the hydraulic motor 13 through the line c. Pressure oil is discharged from the hydraulic motor 13 to the counter balance 15 in the direction of the arrow 24 along the line d. Further, the pressure oil is returned from the counter balance 15 to the oil tank 16 through the line e.

  As shown in FIG. 1, when the vehicle 5 travels in the direction of the arrow 9, the drive pulley 11 acts on the drive shaft 12 by the rope (traction cable) 6 so that the rotation of the drive pulley 11 is increased. Similarly, the rotational force acts on the axially contacted hydraulic motor 13 in the direction in which the rotation speed increases. In order to suppress this speed increase and maintain a predetermined speed, the pressure oil acting on the line d is controlled by the counter balance 15 to control the pressure oil from the hydraulic motor 13, and the pressure oil is supplied from the line e in the direction of arrow 25. Return to the oil tank 16. The thermal energy generated in the pressure oil generated when the pressure oil is controlled by the counter balance 15 is returned to the oil tank 16 and released into the atmosphere by the oil tank 16. That is, the potential energy when the vehicle 5 is driven down at a predetermined speed is released into the atmosphere as thermal energy via the pressure oil.

  Next, FIG. 3 will be described as a second embodiment according to claim 2. That is, the hydraulic pump 14 for supplying pressure oil to the hydraulic motor 13 is rotationally driven by the electric motor M1, and a separate generator G1 is installed to supply power to the electric motor M1. In this way, the power transmission is performed by the electric wire, so that the hydraulic system and the generator G1 can be provided separately, and the degree of freedom for installation is improved. The configuration or operation of other hydraulic equipment is the same as that of the first embodiment according to the first aspect.

  Next, FIG. 4 is explained as Embodiment 3 according to claim 3. In contrast to the second embodiment, the heat energy generated in the pressure oil generated when the pressure oil is controlled by the counter balance 15 is cooled by the oil cooler 17 provided in the line e to release the heat energy, and the oil tank Returning to 16 and releasing it into the atmosphere with the oil tank 16, a greater braking effect can be obtained, and the amount of oil required for cooling required for cooling can be reduced, so that the oil tank 16 can be made smaller.

  Next, FIG. 5 is explained as Embodiment 4 according to claim 4. Instead of the counter balance valve 15 used for controlling the pressure oil in the first, second and third embodiments, a flow rate adjusting valve 26 is used. The hydraulic pump 14 and the hydraulic motor 13 are connected by a line f, and pressure oil is supplied from the hydraulic motor 14 in the direction of arrow 27. Further, the pressure oil discharged from the hydraulic motor 13 that is in axial contact with the drive pulley 11 is returned to the oil tank 16 in the direction of arrow 28 along the line g. The flow rate of the pressure oil passing through the line g through the flow control valve 26 is reduced and reduced. In this way, the rotational speed of the hydraulic pulley and the drive pulley 11 in contact with the hydraulic motor is kept low, and the rope 6 hanging on the drive pulley 11 is pulled down at a low speed so that the vehicle 5 travels downward toward the foothill stop 2. And collect.

  Here, the temperature of the pressure oil is raised by heat energy generated when the flow regulating valve 26 throttles the flow of pressure oil from the hydraulic motor 13. In the same manner as in the first and second embodiments, the pressure oil stored in the oil tank 16 is released into the atmosphere while being in thermal equilibrium. Alternatively, as described in the third embodiment, the thermal energy of the pressure oil is released into the atmosphere by the oil cooler 17 in addition to the oil tank 16 and the potential energy of the vehicle 5 is consumed.

1 Inclined transport facility 2 Yamagata stop 3 Summit stop 4 Track 5 Vehicle 6 Line (towing line)
7, 8, 9 Arrow 10 Drive device 11 Drive pulley 12 Drive shaft 13 Hydraulic motor 14 Hydraulic pump 15 Counter balance valve 16 Oil tank 17 Oil coolers 18, 19, 20 Hydraulic units 21, 22, 23, 24, 25 Arrow 26 Flow rate Control valve 27, 28 Arrow 30 Drive device 31 Drive pulley 100 Inclined ground transportation equipment 101 Line 102 Vehicle 103, 103,... Running wheel 104 Track 105 Counterweight 106 Summit stop 107 Drive device 108 Drive pulley 109, 110 Guide pulley 111 Frame 112 Motor 113 Base 120, 121 Arrows a, b, c, d, e, f, g Line M1, M2 Motor
EG engine G generator

Claims (4)

Inclined ground transportation equipment that transports people or objects by the vehicle being pulled by a rope on a railroad laid between the foot of the mountain and the summit stop on a slope such as a mountainous area, and the main drive that drives the rope in normal operation In addition to the device, when the vehicle is stopped on the track in the track due to an abnormality of the main drive device, a spare drive system for operating the vehicle instead of the main drive device,
Pulleys pivoted at the foot of the foothill and at the summit stop,
A cord which is wound around each pulley half a turn, and both ends are locked back and forth in the traveling direction of the vehicle to make it endless,
A hydraulic motor axially connected to a pulley pivoted at the foothill stop;
A hydraulic pump for supplying pressure oil to the hydraulic motor;
A counter balance valve for controlling the rotation of the hydraulic motor via a hydraulic line between the hydraulic motor and the pressure oil pump;
An oil tank for storing pressure oil;
The rotational drive means for rotationally driving the hydraulic pump uses an engine,
A pre-driving system for a sloping ground transportation facility, wherein a vehicle stopped on the railway line is driven down and driven toward a foothill stop to drive down the vehicle.      2. The preliminary drive system for an inclined transportation facility according to claim 1, wherein said hydraulic pump uses an electric motor supplied with electric power by a generator as a rotational drive means.   An electric cooler is interposed in the return line to the oil tank of the counter balance valve, and the electric motor that rotates the fan of the oil cooler is supplied with electric power from a generator that supplies electric power to the electric motor that rotates the hydraulic motor. The preliminary drive system of the inclined transport facility according to claim 1 or 2, wherein   The flow rate adjusting valve is used instead of the counter balance valve, and the rotational speed of the hydraulic motor, that is, the speed at which the drive pulley pulls down is kept at a low speed. Preliminary drive system for the described inclined transport facility

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