JPS5822380B2 - Trolley drive device - Google Patents

Description

[Detailed description of the invention] The present invention provides one drive shaft along the running rail of the bogie,
The above-mentioned rotatable friction disk arranged at a slight inclination with respect to the surface of the drive shaft is provided on the bogie, and the above-mentioned friction disk is pressed against the above-mentioned drive shaft so that the bogie runs along the traveling rail. This invention relates to a bogie 1 drive device.

In the above device, the propulsive force of the truck is generated by the frictional force between the first drive shaft and the friction disk, and therefore, in order to obtain a large propulsive force, the above frictional force must be minimized.

In other words, the pushing force of the friction disk against one drive shaft must be kept constant, but if there is only one friction disk for one truck, the pushing force per unit area becomes a dog, and the friction disk This has the disadvantage of increasing wear on the drive shaft.

One way to reduce the above wear is to increase the contact area by increasing the diameter of the friction disk, or even if the diameter is increased, the friction disk will cause uneven contact and only partially contact the drive shaft. However, as the diameter increases, the part of the contact point on the friction disk tends to change, causing uneven running speed, and speed control cannot be performed accurately. It may disappear.

In addition, the curved part of the rail, Toshiversa, turntable,
There is a gap between the drive shafts at the branching and switching parts of bogies such as elevators, and if the bogie is equipped with one friction disk, the bogie will run smoothly when the friction disk passes through the gap. The disadvantage is that it does not.

The present invention solves the above drawbacks by supporting a plurality of friction disks on a bracket movably supported on a truck, and furthermore, the plurality of friction disks are urged in the direction of the drive shaft by a spring. By supporting them all at the end of the arm, the contact pressure of a plurality of disks against one drive shaft is made uniform, thereby making it possible to obtain a large propulsive force with little wear on the friction disks.

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

In FIGS. 1, 2, and 3, reference numeral 1 denotes a traveling rail, and a bogie 2 is supported on the traveling rail 1 by wheels 3. In FIG.

4 is a drive shaft arranged on the floor along the rail 1.

A bracket 5 is fixed to the lower surface of the truck 2, and a bracket 7 is supported by a rod 6 fixed to the bracket 5 so as to be slidable and rotatable.

In the case of FIGS. 2 and 3, the rod 6 is disposed perpendicular to the drive shaft 4.

An arm 8 is integrally provided on the bracket 7, and two bearing housings 12.13 are fixed to both ends of an arm 100 which is pivotally supported 9 at the tip of the arm 8. A bearing 11 is attached to each housing 12.13. A rotary shaft 14.15, which is disposed at a slight inclination angle with respect to a plane perpendicular to the rotational axis of the drive shaft 4, is rotatably supported through the rotary shaft 4, and a friction disk is attached to the lower end of the rotary shaft 14.15. 16.17 is fixed.

Friction discs 16, 17 are attached to the rotating shaft 1 against the surface of the drive shaft 4.
A ring-shaped friction piece 34 made of urethane rubber or the like, which is tilted by the above-mentioned inclination angle of 4.15, contacts the drive shaft 4 at one point on the circumference of the contact surface 18 formed on the lower surface. .

The two friction disks 16, 17 are arranged parallel to the axial direction of the drive shaft 4, as shown in FIG.

It is needless to say that the friction piece 34 described above may be attached directly to the rotating shaft 14.15.

Reference numeral 19 denotes an arm protruding from the bracket 7 on the opposite side of the arm 8, and the tip of the arm 19 is supported by a spring 20 hanging down from the cart 2, and is slidably fitted into a rod 21 arranged parallel to the rod 6. The spring 20 biases the bracket 1 through the arm 19 in the direction of the clock hand centering on the rod 6 in FIG. Pressed on top.

Reference numeral 22 denotes a pin that is fixedly suspended from the lower surface of the truck 2. When the arm 19 comes into contact with the pin 22, the arm 19 is prevented from turning more than necessary.

23 is a spring hung between a pin 24 protruding from the arm 19 and a pin 25 protruding from the underside of the cart 2.
9, the bracket 1 is urged downward in FIG.

A cam roller 26 is rotatably supported by projecting from the bracket 7.

In FIGS. 2 and 3, two friction discs 16 and 17 are supported on one bracket 7, but two bearing housings are attached to the end of the arm 10 via another arm. 1 by pivoting in the Yajiro Bay style as shown in the figure.
It is also possible to support three or more friction discs on one bracket 7.

The operation will be explained below.

When one end of the bracket 7 is in contact with one end of the bracket 5 due to the bias of the spring 23, as shown by the solid line 1 in FIG. 17 rotates in the direction of arrow B, and the cart travels in the direction of C.

The truck travels in the direction of arrow C, and the cam roller 26 moves to the cam 27.
By riding on the spring 2, the bracket 7
3, the friction disks 16, 1γ also move in the same direction relative to the drive shaft 4, and the truck is gradually decelerated, so that the center of the friction disk is aligned with the drive shaft. The truck stops at the dashed line positions 16a and 17a, which are directly above the axis line 4.

As shown in FIG. 4, the rod 6 may be arranged diagonally with respect to the drive shaft 4, but in this case, the arm 8 may be fixed diagonally to the bracket 7 so as to be parallel to the drive shaft 4. A plurality of friction disks are arranged in parallel in the axial direction of the drive shaft.

Another embodiment of the invention is shown in FIGS. 5 and 6.

Note that the same parts as in the above embodiment are given the same reference numerals.

In this embodiment, the bearing housing 12 is integrally fixed to the arm 28 fixed to the bracket 7, the arm 29 is fixed to the bearing housing 12, and the arm 28 is fixed to the bracket 7.
A bearing housing 13 is integrally fixed to an arm 31 having a rotatably supported shaft 30 at the tip thereof, and a spring 32 applied between the bearing housing 12 and the arm 30 rotates the bare housing 13 around the shaft 30 as a fulcrum in FIG. The friction disk 16 is pressed against the drive shaft 4 by the force of the spring 20, and the friction disk 17 is pressed against the drive shaft 4 by the force of the spring 32.

A stopper 33 is fixed to the arm 29, and when the arm 31 comes into contact with the stopper 33, the arm 31 is prevented from turning more than necessary.

The rest is the same as in the previous embodiment.

As described above, in the present invention, since a plurality of friction disks are provided on the truck, even when the area of the friction disks in contact with the drive shaft as a whole becomes a dog and a large propulsive force is obtained, the friction disk A drive shaft that uses a single friction disk to obtain a large propulsion force with a small contact pressure per unit area of the plate,
Severe wear of the friction discs is avoided, and when the friction discs pass through the gap between the drive shafts, one of the friction discs comes into contact with areas other than the gap above, and the carriage can be moved reliably and smoothly even in the gap area. Furthermore, since the plurality of friction disks are collectively supported at the end of the arm which is biased toward one drive shaft by a spring, the contact of the plurality of friction disks to the seven drive shafts is reduced. The pressure does not differ greatly, the drive shaft contacts one drive shaft with a balanced and approximately equal pressure, there is no problem such as premature wear of any of the friction discs, and all of the friction discs are appropriate. Since it contacts one drive shaft with a certain amount of pressure, it is possible to obtain a large propulsive force with high driving force transmission efficiency.

[Brief explanation of the drawing]

Fig. 1 is a front view of the embodiment of the present invention, Fig. 2 is Fig. 1 ■-■
3 is a sectional view taken along line 2, FIG. 4 is a plan view of a main part of another embodiment, and FIG. 5 is a sectional view taken along line II-If of FIG. 1, which shows another embodiment of the present invention. Plan view, Figure 6 is Figure 5 VI-
It is a vi sectional view. 1... Traveling rail, 2... Bogie, 4-... Drive shaft,
7-...Bracket, 8...Arm, 16.17...
・Friction disc, 19...arm, 20...suffling.

Claims (1)

[Claims] 1. A drive shaft is arranged along the traveling rail of a bogie, and 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 mounted on the drive shaft. In a device for transporting a cart along a running rail by pressing against the cart, 1. A bracket is provided that is movable in the horizontal direction intersecting the drive shaft and rotatable around an axis along the movement direction, and an arm is provided extending approximately forward and backward from the bracket, and a plurality of friction circles are provided at the end of one arm. A bogie drive device that supports a plate and is characterized in that a spring is provided between the end of the other arm and the bogie for biasing one arm side in the direction of the drive shaft.