JP4184535B2 - Driving device for rail transport vehicle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drive device for a vehicle that travels along a rail.
[0002]
[Prior art]
Rail transportation equipment is used for transporting a relatively small number of people or transporting articles on slopes such as golf courses and ski resorts.
[0003]
As a vehicle drive device in such a rail transportation facility, a rack-pinion system as shown in Japanese Patent Application Laid-Open No. 4-11556, a rack-pin system as shown in Japanese Patent Application Publication No. 7-9989, There is a chain-sprocket system disclosed in Japanese Patent Application Publication No. 55-51652.
[0004]
In these systems, generally, racks, pinions and the like are usually driven by meshing with a metal-to-metal combination. Therefore, noise due to meshing between metals is generated, and the Maintenance such as always applying grease for rust prevention and lubrication is required.
[0005]
[Problems to be solved by the invention]
The present invention has been made in view of the above-described problems, and provides a drive device for a rail transportation vehicle that is easy to maintain, has low noise during traveling, and can reliably transmit driving force. There is to do.
[0006]
[Means for Solving the Problems]
In order to achieve this object, a rail transport vehicle drive device according to the present invention includes a prime mover, a differential reduction gear configured to output the drive force of the prime mover to left and right output shafts with the same torque, and the output shaft. A pinion gear via a universal joint connected to the rack rail, tooth surfaces are formed on both side surfaces of the rack rail laid on the ground, and pinion brackets are provided on both sides of the rack rail so as to face upright, and the pinion bracket The pinion gear is pivotally attached to the lower part and the intermediate part of the pinion bracket is pivotally supported by a bracket pin so that the pinion bracket can swing in the direction perpendicular to the rack rail, and the upper part of both pinion brackets Is configured to compress and mount a spring and apply a spring force in a direction in which the upper portions open to the outside, and the pinion gear is configured by the spring force. Eggplant to drive by pressing on both sides of the rack rails. The pinion gear is made of rubber, and the rack rail is made of resin. Further, the tooth surface shape of the pinion gear and the rack rail is formed in a trapezoidal shape.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 6 is a front view of the rail transportation facility, and FIG. 7 is a right side view of the rail transportation facility.
[0008]
In the drawing, a pair of left and right traveling rails 1 and 1 are laid on the ground at a predetermined interval, and a rack rail 2 is laid between the rails 1 and 1. These rails 1 and 1 and the rack rail 2 form a track with a curve and a straight line so that they can be bent vertically and horizontally so as to follow the terrain while maintaining a predetermined positional relationship.
[0009]
A traveling vehicle 3 traveling on the rails 1 and 1 is composed of a cabin 4 and carts 5 and 5. The cabin 4 is pivotally supported on the carriages 5 and 5 so as to be rotatable in a horizontal plane, and traveling wheels 6, 6,... Provided on the carriages 5 and 5 roll on the rails 1 and 1. The carts 5 and 5 include drive devices 7 and 7, which will be described later. The pinion gears 8 and 8 provided in the drive devices 7 and 7 mesh with the rack rail 2, and the pinion gears 8 and 8 By rotationally driving 8, the traveling vehicle 3 can travel along the rails 1 and 1.
[0010]
1 and 2 show a configuration of the cart 5. Beams 62 and 62 are pivotally attached to the left and right sides of the carriage frame 51 by beam pins 61 and 61 so as to be swingable. Traveling wheels 6 and 6 are pivotally attached to both ends of the beams 62 and 62, respectively, so as to roll on the rails 1 and 1. Side rollers 9, 9... Are provided below the front and rear end portions of the beams 62, 62 so as to contact the inner surfaces of the rails 1, 1. For example, as shown in FIG. 1, the side roller 9 is formed in a lever shape with a rotation shaft of the side roller 9, and is pivotally attached to a beam 62 by a lever pin 92. Make pressure contact with the side. Next, in the upper center of the carriage frame 51, the cabin 4 is pivotally supported in a horizontal plane via, for example, a thrust bearing.
[0011]
By configuring the carriage 5 in this way, the traveling vehicle follows the vertical bending of the rails 1 and 1 by the swinging of the beam 62, and the side roller for the horizontal bending. 9 can follow by guiding the cart 5 to rotate along the side surfaces of the rails 1 and 1.
[0012]
Next, the driving device 7 is fixed to the cart frame 51. As shown in FIGS. 3 and 4, the drive device 7 includes a prime mover 71, a differential speed reducer 72, universal joints 73 and 73, and pinion gears 8 and 8. The prime mover 71 is, for example, an electric motor. In this case, a trolley or the like is laid along the rails 1 and 1, and electric power is obtained from the trolley and driven. In addition, when the equipment is installed in a place where power cannot be supplied, the prime mover 71 may be an internal combustion engine or the like.
[0013]
The prime mover 71 is connected to a differential reducer. The differential reducer 72 has a function equivalent to that of a differential gear of an automobile, and the driving force of the prime mover 71 is output to the left and right output shafts 74, 74 with an equal torque, and is output to the output shafts 74, 74. The pinion gears 8 and 8 are driven with the same torque via the connected universal joints 73 and 73. With this configuration, it is possible to drive and travel while allowing the rotational difference between the inner and outer rings of the pinion gears 8 and 8 that occurs when the rack rail 2 bends left and right.
[0014]
Next, the pinion gears 8 and 8 are pivotally attached to lower portions of the pinion brackets 81 and 81, and the pinion brackets 81 and 81 are swingable about the bracket pins 82 and 82 as a fulcrum. 72 is pivotally supported. The springs 83, 83 are compressed and mounted on the upper portions of the pinion brackets 81, 81, and a spring force is applied in a direction in which the upper portions of the pinion brackets 81, 81 open outward. This spring force acts in a direction in which the pinion gears 8 and 8 pivotally attached to the lower portions of the pinion brackets 81 and 81 sandwich the rack rail 2 from both side surfaces. By doing so, the rack rail 2 is moved to a predetermined position. Even if there is a slight misalignment, the pinion gears 8 and 8 always sandwich the rack rail 2 with a constant force, and a stable driving force can be obtained.
[0015]
Next, FIG. 5 shows a state in which the rack rail 2 and the pinion gears 8 and 8 are engaged with each other. The rack rail 2 is made of a resin such as nylon and has trapezoidal teeth on both sides. On the other hand, the pinion gears 8 and 8 are made of rubber and have a trapezoidal tooth profile that meshes with the tooth surface of the rack rail 2. As described above, force is applied to the pinion gears 8 and 8 in the direction of sandwiching the rack rail 2, and the rubber pinion gears 8 and 8 are pressed and plastically deformed so that they are in close contact with the tooth surfaces of the rack rail 2 and mesh with each other. To drive.
[0016]
【The invention's effect】
The present invention is configured as described above, and has the effects described below.
[0017]
By transmitting the driving force of the prime mover 71 via the differential speed reducer 72, the left and right pinion gears 8 and 8 can be driven with the same torque, and left and right bending travel is possible. Further, the output shafts 74 and 74 of the differential reduction gear 72 and the pinion gears 8 and 8 are connected by universal joints 73 and 73 so that the pinion gears 8 and 8 are pressed and sandwiched between both side surfaces of the rack rail 2. The rack rail 2 can be misaligned, and a stable driving force can always be obtained.
[0018]
Further, since the rack rail 2 is made of resin and the pinion gear 8 is made of rubber, maintenance for lubrication and rust prevention is unnecessary, and noise due to meshing is reduced. Furthermore, when the pinion gear 8 is pressed against the rack rail 2, the trapezoidal tooth profile is plastically deformed and meshes closely with each other to obtain a high driving force, and can follow the change in the tooth profile at the curved portion. A reliable driving force can be obtained.
[0019]
As described above, the rail transport vehicle drive device according to the present invention can reliably obtain a stable driving force even if it is a curved portion on the top, bottom, left, and right, has little noise during driving, and is easy to maintain.
[Brief description of the drawings]
FIG. 1 is a right side view showing a configuration of a cart.
FIG. 2 is a front view showing the configuration of the carriage.
FIG. 3 is a right side view showing a configuration of a driving device.
FIG. 4 is a front view showing a configuration of a driving device.
FIG. 5 is a plan view showing a state in which a rack rail and a pinion gear are engaged with each other.
[Figure 6] Front view of rail transport equipment [Figure 7] Right side view of rail transport equipment [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rail 2 Rack rail 3 Traveling vehicle 4 Cabin 5 Bogie 6 Running wheel 7 Driving device 8 Pinion gear 9 Side roller 51 Bogie frame 61 Beam pin 62 Beam 71 Motor 72 Differential reduction gear 73 Universal joint 74 Output shaft 81 Pinion bracket 82 Bracket pin 83 Spring 91 Spring 92 Lever pin

Claims (3)

A rack laid on the ground, comprising a prime mover, a differential reduction gear configured to output the driving force of the prime mover to the left and right output shafts with the same torque, and a pinion gear via a universal joint connected to the output shaft A tooth surface is formed on both sides of the rail, and pinion brackets are provided on both sides of the rack rail so as to face each other, and the pinion gear is pivotally attached to the lower part of the pinion bracket and the intermediate part of the pinion bracket is provided The pinion bracket is pivotally supported by a bracket pin so that the pinion bracket can swing in a direction perpendicular to the rack rail. to a configured to add a spring force, and without the pinion gear with the spring force so as to drive by pressing on both sides of the rack rail this Drive of the railway transport vehicle, characterized in.   2. The drive device for a rail transportation vehicle according to claim 1, wherein the pinion gear is made of rubber, and the rack rail is made of resin.   3. The drive device for a rail transport vehicle according to claim 2, wherein the tooth surfaces of the pinion gear and the rack rail are trapezoidal.

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