JPS583856B2 - Friction disk support device in bogie drive device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A bogie drive system is known in which the bogie is driven by pressing a friction wheel provided on the bogie against a drive shaft disposed along the running path of the bogie. In this type of device, a friction wheel rotatably supported around an axis perpendicular to the upright axis was pressed against an arm that pivoted around an upright axis perpendicular to the drive shaft. Even if the elasticity of the friction wheel is taken into consideration, the friction wheel and the drive shaft actually only come into contact with each other in close to a point contact, making it difficult to obtain a large drive force.

In response to this, the applicant previously filed an application for a truck drive device in which a truck is provided with a friction disk that rotates around a rotational axis substantially perpendicular to the drive shaft, and the friction disk is pressed against the drive shaft.

The present invention relates to an embodiment of a specific device for supporting the friction disc on a truck.

The present invention will be explained in detail below with reference to the drawings.

In FIGS. 1 to 3, 1 is a drive shaft, and 2 is a rod having an axis inclined with respect to the axis of the drive shaft 1, and is fixed to the bottom surface of the truck T by a bracket 3.

4 is an arm that is slidable and rotatable on the rod 2;
A shaft 8 of a rotary disk 6 to which a ring-shaped friction disk 5 is fixed is rotatably supported by a bearing 7.

Reference numeral 9 denotes an auxiliary arm supported by the arm 4 through a shaft 10 so as to be swingable only.

Bolt 1 screwed into support piece 11 fixedly protruding from arm 4
A compression spring 15 is inserted into the core rod 13 of No. 2 between the bolt 12 and the auxiliary arm 9, and the spring 15 urges the arm 4 to swing around the rod 2, and the urging force causes the friction disk 5 to move against the drive shaft 1. Being pushed.

The pressing force can be adjusted by rotating the bolt 120.

The upper end of the core rod 13 is loosely fitted into the elongated hole 16 of the auxiliary arm 9.

A rotatable roller 17 is supported at one end of the auxiliary arm 9, and the roller 17 comes into contact with a guide plate 18 fixed to the lower surface of the truck, thereby supporting the reaction force of the friction disk 5 pressing against the drive shaft 1.

A freely rotatable roller 20 is supported by a branch piece 19 that is fixed to the arm 4 on the opposite side of the auxiliary arm 9 with respect to the rod 2. When the friction disk 5 passes through the joint of the drive shaft 1, the roller 20
0 is still in contact with a guide plate 21 fixed to the lower surface of the truck, and the rotation of the arm 4 around the rod 2 is stopped within a certain range.

Reference numeral 22 denotes a tension spring stretched between the arm 4 and a bracket 23 fixed to the truck, and the spring 22 biases the arm 4 toward the lower left in FIG.

Support arms 24, 25 are fixedly protruding from the arm 4, and cam rollers 26, 27 are rotatably supported at the tips of the support arms 24, 25.

When the arm 4 is in contact with the branch 3a of the bracket 3 by the spring 22 and the rotary disk is in the position 6a in FIG. The cart T stops when the rotating shaft is at the 6b position.

When the truck moves along a drive shaft perpendicular to the drive shaft 1, the cam roller 27 rides on a cam (not shown), moves the arm 4 along the rod 2, and controls the traveling speed of the truck.

The operation described above is illustrated in FIG.

In FIG. 5, the truck 1 is supported on rails 29 disposed along the drive shaft 1 by wheels 30 rotating about four vertical axes.

FIG. 5O shows the contact portion between the friction disk 5 and the drive shaft 1.

FIG. 5A shows the state of the rotary disk 6a in FIG. 1, where the friction disk 5 rotates at a tangential speed indicated by arrow a due to contact with the drive shaft 1, and a component b of the speed a in the direction of the drive shaft 1. The trolley T travels in the direction of arrow C, which is opposite in direction with the size of .

By reversing the drive shaft 1, the trolley T runs in the opposite direction.

FIG. 5B shows the state of the rotary disk 6b of FIG. 1. The friction disk 5 rotates at a tangential speed indicated by the arrow d, but the component of the speed d in the direction of the drive shaft is zero and the truck T stops.

In Fig. 5C, the rail 29a and the drive shaft 1a are the rail 29,
When the drive shaft 1 is disposed perpendicular to the drive shaft 1, in this case as well, the truck T can run in forward and reverse directions and stop as shown in the figure, and therefore, according to the device of the present invention, the drive shaft 1 is perpendicular to the drive shaft 1. It is possible for the trolley T to travel between the passages.

In the case of the device of the present invention, it is necessary to make the axis 8a of the shaft 8 slightly inclined with respect to the plane perpendicular to the drive shafts 1 and 1a. It is slightly tilted in the plane with respect to the vertical line.

In this case, the pressing force of the friction disk 5 against the drive shaft 1 may change due to a change in the amount of extension of the spring 15 due to the movement of the contact point of the friction disk 5 with the drive shaft 1.
By tilting and fixing the rod 2 against the lower surface of the trolley T as shown in the second figure, or by slightly tilting the rod 2 with respect to the horizontal plane, or by slightly tilting the contact surface of the guide plate 18 with the roller 11 with respect to the horizontal plane. It is possible to compensate so that the pressing force is constant.

In FIGS. 1 to 3, the arm 4, that is, the rotary disk 6, is moved by the support arms 24 and 25.
Another embodiment of the means for moving the arm 4 is shown in the figure.

That is, levers 32 and 33 are supported integrally and swingably by a shaft 31 on the lower surface of the trolley T, cam rollers 34 and 35 are supported at the tips of each of the levers 32 and 33, and one end of a rogue 36 is connected to the arm 4 at the other end. are coupled to one lever 32,330.

Reference numeral 37 denotes a guide roller for a rope 36 rotatably supported on the lower surface of the trolley T.

When the trolley T travels along the drive shaft 1, the cam 38 and the cam roller 34 work together, and when the trolley 1 travels along the drive shaft 1a, the cam 39 and the cam roller 35 work together to move the vehicle through the rope 36. The movement of arm 4 is controlled.

In this embodiment, the movement force of the arm 4 is increased at the levers 32 and 33, and smooth movement of the arm 4 can be ensured.

As described above, according to the device of the present invention, since the arm 4 is guided in movement by the rod 2 and the guide 18, it can be moved smoothly, and the trolley T can freely move between orthogonal passages. Stopping can be easily controlled, making it an extremely effective transport vehicle for warehouse facilities, assembly lines, and the like.

[Brief explanation of drawings]

Fig. 1 is a bottom view of the essential parts of the device of the present invention, and Fig. 2 is a view taken along the arrows in Fig. 1. Fig. 2 is a sectional view taken in Fig. 1 - Fig. 1.
A sectional view, FIG. 4 is a bottom view of another embodiment, and FIG. 5 is an explanatory diagram of the running of the truck. T...Truck, 1...Drive shaft, 2...
...Rod, 4...Arm, 5...Friction disk, 9...Auxiliary arm, 15...
Spring, 18...Guide.

Claims (1)

[Claims] 1. In a device that drives a bogie along a running path by pressing a friction disk rotatably supported on the bogie against a drive shaft disposed along the running path of the bogie, the axis of the drive shaft is A rod having an axis inclined with respect to the rod is fixed, and the friction disk is rotatably supported on an arm slidably and pivotably supported on the rod, and the friction disk is slidably integral with the arm and is attached to the arm. The invention is characterized in that an auxiliary arm is provided which is swingable and guided by a guide whose one end is fixed to the cart, and the friction disk is pressed against the drive shaft by a spring provided between the auxiliary arm and the arm. Friction disk support device.