JPS583858B2 - Trolley drive device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bogie drive device in which a line shaft is provided for rotation between running rails of a bogie.

, As such a device, for example, Japanese Patent Application Laid-Open No. 1986-13
As shown in No. 0114, a support body that can rotate around an upright axis provided on a truck is provided, a rotating ring that freely rotates around a horizontal axis provided on the support body is provided, and the vehicle runs on the rotating ring. There is a drive placed between the rails and a device that presses against the shaft.

In the above device, the support body is placed in a spring state and is fixed in contact with a stopper, and the horizontal shaft is tilted at a predetermined angle θ with respect to the center of the drive shaft, whereby normal running of the cart is performed.
The support body is rotated by a fixed cam against the spring to change the angle of inclination of the horizontal axis with respect to the center of the drive shaft, thereby decelerating and stopping the truck.

In such a device, even in a curved portion of a conventional travel rail, if the bogie is running in a normal running state and the traveling speed is high, there is a risk that the bogie may derail or fall over at the curved portion.

In order to prevent such drawbacks, a cam that rotates the support body may be disposed at the curved section so that the cart decelerates at the curved section. However, in the curved section, the drive shaft is actually polygonal. In addition, the traveling locus of the truck is complicated, and the cam must be provided along the entire length of the curved portion, and in practice, it is difficult to smoothly decelerate the truck in the curved portion using the cam.

The present invention aims to eliminate the above-mentioned drawbacks.
A freely rotating friction disk that is slightly inclined with respect to the surface of the drive shaft is provided on the truck, and the friction disk is pressed against the surface of the drive shaft to cause the truck to travel along the running rail. By shifting the position of the drive shaft of the drive shaft from the position of the drive shaft on the straight section of the traveling rail and moving the contact point of the friction disk with the drive shaft at the curved section to the deceleration side, the running speed of the bogie can be automatically adjusted at the curved section. The speed was reduced to .

Embodiments of the apparatus of the present invention will be described in detail below with reference to the drawings.

In FIGS. 1 and 2, the running rail 3 is a bogie supported on the running rails 1 and 2 by wheels 4, and 5 is a rotationally driven drive shaft disposed between the rails 1 and 2. be.

In FIGS. 1, 3, and 4, a rod 7 is fixed to a barracket 6 fixed to the lower surface of the truck 3.

Although the rod 7 is perpendicular to the center line of the drive shaft 5 in the figure, it may be inclined at an angle other than the right angle.

A sliding body 8 is fixed to the rod 7 in a slidable and rotatable manner.
A bearing 1 is attached to a bracket 9 that is integrally fixed to a sliding body 8.
A rotary shaft 10 is rotatably supported via 3.

A disk body 12 is fixed to the lower end of the rotating shaft 10, and a ring-shaped friction disk 11 made of urethane rubber or the like is provided on the lower surface of the disk body 12.
is fixed.

The rotating shaft 10 is slightly inclined with respect to a plane orthogonal to the drive shaft 5, and the friction disk 11 is slightly inclined with respect to the surface of the drive shaft 50, and friction is caused at one point on the circumferential surface of the friction disk 110. The disk 11 contacts the drive shaft 5.

An arm 14 is provided protruding from the sliding body 8, and the tip of the arm 14 is slidably fitted into a rod 15 arranged approximately parallel to the rod 7, and an adjustment bolt 16 screwed and fixed to the trolley 4.
A spring 17 is applied between the arm 14 and the rod 15, and the spring 17 urges the arm 14 clockwise in FIG. 4, so that the friction disk 11 is pressed against the surface of the drive shaft 50.

A spring 20 is applied between a pin 18 protruding from the arm 14 and a pin 19 fixed to the lower surface of the truck 4, and the spring 20 urges the sliding body 8 downward in FIG.
The state shown by the solid line in FIG. 3 in which one end of the sliding body 8 is in contact with the bracket 6 is the normal running state of the truck. After moving upward in FIG. 3, the trolley is decelerated and stopped.

That is, in FIG.
The carriage rotates at a speed V and travels in the direction of arrow 24, and the carriage is decelerated and stopped by moving the friction disk 11 upward in FIG. 2 relative to the drive shaft 5.

When the drive shaft 5 rotates in the direction of arrow 25, the truck rotates in the direction of arrow 2.
Run in 6 directions.

27 is a contact point between the friction disk 11 and the drive shaft 5.

In FIG. 5, Ia, : 2a are curved parts of the rails 1, 2. Conventionally, the curved parts are connected to the drive shaft 5 in the straight rail part, and a curved line 28 is connected according to the degree of curvature of the rail curved parts 1a, However, in the present invention, the drive shaft is arranged in a polygonal shape along a curve 29 that is deviated from the curve 28 toward the rail 1a according to the degree of curvature of the rail curved parts 1a and 2a. The drive shaft 5a is disposed in the drive shaft 5a, thereby shifting the contact point 27 between the friction disk 11 and the drive shaft 5 to the position 27a (FIGS. 2 and 5) in the deceleration direction 29 of the truck.

5b is a rail curved portion 1 disposed along the curve 29.
Each drive shaft 5, 5a, 5b is connected to each other by a joint 30, which is a drive shaft that connects the seven drive shafts 5a of a and 2a and the drive shaft 5 disposed on the rail straight section.

Therefore, when the truck 4 travels in the direction of the arrow 26 in FIG. 5, the traveling speed of the truck is gradually reduced while the friction disk 11 passes the drive shaft 5b, and the friction disk 11 passes the drive shaft 5a. During this time, the bogie decelerates at a nearly constant speed.

When the truck travels in the direction of arrow 24, on the contrary, the speed of the truck is gradually increased at the drive shaft 5b portion, and the truck moves to high-speed travel on the straight section of the rail.

Since the drive shaft 5a has a polygonal shape, it is considered that the speed of the cart 4a is not strictly constant while the friction disk 11 moves on the drive shaft 5a, but by increasing the diameter of the friction disk 11, Changes in the traveling speed of the truck due to the deviation of the contact point 27a on the friction disk 11 can be made small, and can be kept practically constant due to the slip between the friction disk 11 and the drive shaft 5.

As described above, according to the present invention, the bogie runs at a curved rail section while being automatically decelerated from the normal running speed at a straight rail section to a desired low speed, thereby preventing derailment and overturning of the bogie at the curved rail section. Furthermore, it becomes possible to arbitrarily increase the traveling speed of the rail straight section.

[Brief explanation of the drawing]

Fig. 1 is a schematic front view of the trolley drive device, Fig. 2 is an explanatory plan view thereof, Fig. 3 is a sectional view taken along the line - Fig. 1 showing the support section of the friction disk, and Fig. 4 is Fig. 3 - -■ sectional view, and FIG. 5 is a plan view showing the arrangement relationship between the drive shaft and the rail. 1, 2...Traveling rail, 1a, 2a...
・Rail curved part, 4...Bolly, 5...
Drive shaft, 11... Friction disk.

Claims (1)

[Claims] 1. A drive shaft is arranged between the running rails of a bogie, a rotatable friction disk slightly inclined with respect to the surface of the drive shaft is provided on the bogie, and the friction disk is pressed against the surface of the drive shaft to move the bogie. In the device for causing the drive shaft to travel along the traveling rail, the drive shaft in the curved portion of the traveling rail is positioned such that the point of contact between the friction disk and the drive shaft is on the friction disk from the position of the drive shaft in the straight portion of the traveling rail. A bogie drive device characterized in that the bogie drive device is disposed offset in a direction in which the bogie moves in a deceleration direction.