JP6184763B2 - Driving device for cable-type transportation equipment - Google Patents

Description

  The present invention relates to a prime mover that drives a rope in a rope-type transport facility that operates by suspending or towing a carrier or a vehicle with a rope.

  The cable-type transport equipment is a ropeway or other cableway that operates by hanging a carrier on a cable stretched in the air, or a steel cable railway that operates by pulling a vehicle along the rail laid on the ground. Known as. These cableways and steel cable railways do not run with power to the vehicles themselves like railways, etc., but instead connect the vehicles and transporters to the ropes and drive the ropes to move the vehicles and transporters. Therefore, it is possible to transport personnel even on steep slopes, to visit shrines and temples in the mountains, transport personnel at mountainous tourist sites, and ski resort personnel It is widely used for transportation.

  A driving device for driving the rope is provided at one stop of the rope-type transportation facility. The general configuration of this prime mover is roughly as follows. A driving pulley is rotatably installed at the stop, and a rope is wound around the driving pulley. The driving pulley is connected to the output shaft of the speed reducer, and an electric motor is connected to the input shaft of the speed reducer. And a motor pulley rotates by electrically controlling this electric motor, and drives the rope wound around the motor pulley (for example, refer to patent documents 1). In addition to such a configuration, a spare drive device may be provided in case the above-described electric motor or control device fails (see, for example, Patent Document 2).

JP 2008-201390 A JP 2001-294149 A

  As described above, the cable-type transportation equipment is often provided on an inclined land, and it is desirable that the stop is configured compactly from the viewpoint of land creation, etc., and the prime mover provided for this stop is also preferably configured compactly. . In particular, steel rope railways and crossing ropeways that transport personnel of about 100 people or more will increase the size of equipment such as reducers and motors that make up the prime mover. It is desirable that selection and arrangement be performed more rationally. In addition, when the prime mover is updated in the existing equipment, the arrangement of the equipment is restricted by the existing structure or the like, and in this case, it is inevitably required to make the prime mover compact. .

  This invention is made | formed in view of such a situation, Comprising: It aims at providing the prime mover of the cable-type transport equipment comprised compactly.

The invention of claim 1 includes a driving pulley that wraps a rope and drives the rope, a reduction gear connected to the driving pulley, a gear box connected to an input shaft of the reduction gear, and the gear Two electric motors connected to the box, the two electric motors being substantially the same size and arranged substantially in parallel, and the gear box can be connected to each of the two electric motors. A pair of shafts are provided, the gear box has a substantially rectangular shape, a longitudinal direction is disposed in a direction perpendicular to the axial direction of the input / output shaft, and the input / output shafts rotate at the same speed. The reduction gear is connected to one of the input / output shafts of the gear box, and the reduction gear has a substantially rectangular shape and a longitudinal direction is disposed in a direction orthogonal to the axial direction of the input / output shaft. Is connected to the driving pulley, and the axial direction of the input / output shaft It is characterized in that the longitudinal direction of the width of the longitudinal width and the speed reducer orthogonal directions of the two sets of motors width as the gear box is configured to be substantially equal to.

  The invention of claim 2 is characterized in that, in the prime mover of the cable-type transport facility according to claim 1, two control devices for independently controlling the two electric motors are provided.

  According to the present invention, a gear box having two parallel input / output shafts is arranged between the reduction gear and the electric motor, and the driving force is transmitted through the gear box. Two electric motors can be arranged in parallel, and a device can be arranged compactly without a useless space between devices. In addition, by configuring the two motors to be controlled independently by the two control devices, even if one of the motors or the control device breaks down, the other motor or control device operates. Therefore, it is possible to prevent unexpected suspension of transportation facilities.

Explanatory drawing showing the outline of the steel cable railway Plan view of prime mover Side view of prime mover Top view of gearbox Front view of gearbox

  Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. In addition, in this Embodiment, although demonstrated by embodiment by a steel cable railway as a rope-type transport facility, this invention is applicable also to cableways, such as a ropeway. FIG. 1 is an explanatory view showing an outline of a steel cable railway. In the figure, two vehicles 11 are arranged on a rail 10 laid on an inclined surface, and the vehicle 11 travels back and forth between the footside stop and the summit side stop along the rail 10. Each vehicle 11 is connected to both ends of a single strip 16, and an intermediate portion of the strip 16 is wound around a prime mover 13 and a counter pulley 12 of a prime mover 14 provided on the summit side. Yes.

  The driving pulley 13 is rotationally driven in both clockwise and counterclockwise directions by the drive unit 15, whereby the rope 16 moves. 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 vehicle 11 is located at the foot stop on the foot side. 11 and 11 operate | move by what is called a slip method which drive | works in a mutually reverse direction.

  FIG. 2 is a plan view of the prime mover 14, and FIG. 3 is a side view of the prime mover 14. The driving pulley 13 around which the rope 16 is wound is fixed to a pulley shaft 17 supported at both ends by a bearing 18, and the driving pulley 13 and the pulley shaft 17 are on a driving frame 19 individually provided on the floor. Is supported rotatably. One end of the pulley shaft 17 protrudes laterally from the bearing 18 and is connected to the output shaft 21 of the speed reducer 20 via a shaft joint 39.

  The input shaft 22 of the speed reducer 20 extends to both sides of the main body of the speed reducer 20, and two overspeed detectors 23 are connected to a portion of the input shaft 22 extending to the driving pulley 13 side. ing. The overspeed detector 23 sends a signal when the rotation speed of the input shaft 22 exceeds the set rotation speed, and thereby monitors whether the moving speed of the rope 16 exceeds the set value. To do. A brake disc 24 of the braking device 40 is fixed to the other extending portion of the input shaft 22 and is connected to a gear box 26 via a universal joint 25 attached to the end of the shaft.

  4 is a plan view of the gear box 26, and FIG. 5 is a front view of the gear box 26. The gear box 26 includes a first input / output shaft 28 and a second input / output shaft 29 that project from the casing 27 to both sides at both end positions. The first input / output shaft 28 and the second input / output shaft 29 have a gear G1 and a gear G5 fixed inside the casing 27, respectively, and gears G2, G3, and G4 are disposed between the gears G1 and G5. The adjacent gears mesh with each other. The number of teeth of each of the gears G1 to G5 is set so that the rotational speed ratio between the first input / output shaft 28 and the second input / output shaft 29 is 1: 1. The two input / output shafts 29 rotate in the same direction.

  2 and 3 again, the output side of the first input / output shaft 28 of the gear box 26 is connected to the input shaft 22 of the speed reducer 20 via the universal joint 25 described above. A first speed monitor 30 and a second speed monitor 31 are provided on the output side of the first input / output shaft 28 and the second input / output shaft 29, respectively. The first speed monitor 30 and the second speed monitor 31 output the rotation speeds of the first input / output shaft 28 and the second input / output shaft 29 as voltage signals or pulse signals, and the operation is performed based on these signals. The control devices 37 and 38, which will be described later, determine whether or not the rotational speeds of the first input / output shaft 28 and the second input / output shaft 29 are normal at any time.

  Next, the input sides of the first input / output shaft 28 and the second input / output shaft 29 are connected to the first electric motor 33 and the second electric motor 34 via shaft couplings 32, respectively. As the shaft coupling 32, it is desirable to adopt a flange-type flexible shaft coupling or a chain shaft coupling that is relatively easy to switch between connection and disconnection between the shafts. The first electric motor 33 and the second electric motor 34 are electric motors of the same specification, and are provided with rotational speed detectors 35 and 36, respectively, at the shaft ends on the opposite side of the rotating shaft. The signals of the rotational speed detectors 35 and 36 are input to a first control device 37 and a second control device 38 that control the first motor 33 and the second motor 34 independently of each other. The second motor 34 is controlled separately. Further, the signals of the overspeed detector 23, the first speed monitor 30, the second speed monitor 31, and other detection devices (not shown) are also respectively associated with the first control device 37 and the second control. It is input to the device 38 and acts as a control signal.

  With the above configuration, during the operation of the equipment, the operation is performed by any one of the electric motors 33 and 34 and the control devices 37 and 38. For example, when the first electric motor 33 and the first control device 37 are used for operation, the second electric motor 34 and the second electric motor 34 are deenergized and do not function. In this case, if the coupling of the shaft coupling 32 on the second electric motor 34 side is disconnected, the rotation from the gear box 26 is not transmitted to the second electric motor 34, so the second electric motor 34 rotates unnecessarily and the respective parts deteriorate. Can be prevented from progressing.

  Next, in such a use state, when the first electric motor 33 or the first control device 37 fails, or when it is necessary to remove the first electric motor 33 or the first control device 37 such as overhaul, The second motor 34 and the second control device 38 are energized and switched to this for operation. Thus, the suspension of the transportation facility due to an unexpected failure or the like can be prevented by switching the operation by any one of the electric motors 33 and 34 and the control devices 37 and 38. In addition, if the operation by the first motor 33 and the first control device 37 and the operation by the second motor 34 and the second control device 38 are switched at certain intervals, the motors 33, 34 and Since the deterioration of the control devices 37 and 38 proceeds in substantially the same manner, it becomes easy to determine the deterioration of the equipment and to make a maintenance plan.

  As described above, the prime mover 14 according to the present invention includes the two electric motors 33 and 34 and operates by switching each of them. The two electric motors 33 and 34 are configured to be connected to the speed reducer 20 via a gear box 26 having input / output shafts 28 and 29 arranged in parallel. The electric motors are arranged in parallel. Therefore, there is no useless space between the devices arranged, and a compact configuration can be achieved.

DESCRIPTION OF SYMBOLS 10 Rail 11 Vehicle 12 Conveying pulley 13 Driving pulley 14 Driving device 15 Drive part 16 Rope 17 Pulley shaft 18 Bearing
19 Driving frame 20 Reduction gear 21 Output shaft 22 Input shaft 23 Overspeed detector 24 Brake disk 25 Universal joint 26 Gear box 27 Casing 28 First input / output shaft 29 Second input / output shaft 30 First speed monitor 31 Second speed Monitor 32 Shaft coupling 33 First electric motor 34 Second electric motor 35 Rotational speed detector 36 Rotational speed detector 37 First controller 38 Second controller 39 Shaft coupling 40 Braking devices G1, G2, G3, G4, G5 Gears

Claims (2)

A driving pulley that wraps a rope and drives the rope, a reduction gear connected to the driving pulley, a gear box connected to an input shaft of the reduction gear, and two units connected to the gear box With an electric motor
The two electric motors are approximately the same size and arranged substantially in parallel.
The gear box is provided with a pair of input / output shafts connectable to each of the two electric motors, the gear box has a substantially rectangular shape, and a longitudinal direction thereof is in a direction perpendicular to the axial direction of the input / output shafts. Disposed, and the input / output shafts are coupled to rotate at the same speed,
The speed reducer has a substantially rectangular shape, the longitudinal direction is disposed in a direction perpendicular to the axial direction of the input / output shaft, and is connected to one of the input / output shafts of the gear box, Connected to the drive pulley,
The width of the two motors in the direction orthogonal to the axial direction of the input / output shaft, the width in the longitudinal direction of the gear box, and the width in the longitudinal direction of the speed reducer are substantially equal. The prime mover of the cable-type transport facility.   The prime mover for a rope-type transportation facility according to claim 1, further comprising two control devices for independently controlling the two electric motors.

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