JPH0126539Y2 - - Google Patents

Description

[Detailed description of the invention] In this invention, a drive shaft is disposed along the running track of the bogie, and a rotatable friction disk is provided on the bogie with a slight inclination to the surface of the drive shaft. It is an object of the present invention to provide a traveling truck device in which the truck is moved along a running track by pressing a friction disk onto the drive shaft, and the truck can run smoothly.

Hereinafter, embodiments will be described based on the drawings.

In the figure, a bogie 1 is supported on a cylindrical running track 3 via wheels 2, which will be described in detail later.
A drive shaft 4 is arranged along.

A rod 6 is installed horizontally between a pair of support plates 5 on the lower surface of the truck 1, and a support guide 7 made of a left and right pair of bent plate materials is slidably attached to the rod 6. It is also supported so that it can rotate freely.

Reference numeral 8 denotes a receiving arm for a spring 11 for downward biasing of the friction disk 9, which will be described later. A rotatable roller 13 rolls on a backing plate 14 fixed to the lower surface of the truck 1, so that the entire support guide 7 can smoothly move left and right along the rod 6.

A pair of front and rear bearing housings 16 is supported at an intermediate position of the support guide 7 via a horizontal fulcrum pin 15 in a serpentine shape. A disk 9 is fixed.

The friction disk 9 is inclined at a slight angle with respect to the surface of the drive shaft 4, so that it comes into contact with the outer peripheral surface of the drive shaft 4 at one point.

Reference numeral 18 denotes a cam roller that engages with a stopping cam device 19, which will be described later.
The arm 23 is provided at one end of an arm 23 which is supported on the side surface of one of the connecting plates 21 so as to be able to swing 22 freely.

As mentioned above, 11 is a spring for urging the friction disk 9 downward, and acts between the tip of the support guide 7 and the receiving arm 8.

A pin 24 is fixed to the side surface of the support guide 7 via a bracket 25, and a tension spring 27 is tensioned between the pin 24 and a pin 26 protruding from the bottom surface of the truck 1. The entire support guide 7, which supports the support guide 7, is always urged to be positioned to the left in FIG.

The traveling bogie 1 is configured as described above, and the support guide 7 is normally pulled to the left in FIG. contact, the rotational force of the drive shaft 4 is transmitted to the truck 1 as a propulsive force, the truck 1 moves forward, and the cam roller 18 is activated by the stop cam device 19.
When the support guide 7 is engaged with the tension spring 27 and moved to the right side as shown in FIGS. 1 and 2, the center of the friction disk 9 is aligned with the axis of the drive shaft 4 in plan view. As it passes along the line, the friction disk 9 spins idly and the bogie 1 comes to a stop. However, in the traveling bogie 1 according to this invention, the wheels 2 are configured as follows in particular to ensure stable running. ing.

That is, the wheels 2 include a first rotating body part 2a that contacts the upper surface of the running track 3 and supports the weight of the bogie 1, and a second rotating body part 2a that abuts the side surface of the running track 3 and restricts the left-right movement of the bogie 1. It consists of a rotating body part 2b,
The first and second rotating body portions 2a and 2b are supported by the truck 1 so as to be able to rotate independently.

As shown in the figure, the second rotating body portion 2b has a large diameter portion 2C extending in the shape of a bulge extending toward the lower surface of the track 3, as shown in the figure.
The above-mentioned curved surface has a smaller curvature than the curvature of the cylindrical running track 3 so that the running track 3 does not come into contact with each other at two points.

Therefore, the above-mentioned curved surface may have any shape as long as its curvature is smaller than the curvature of the running track 3. For example, the cross section of the curved surface may be arcuate, parabolic, exponential, etc. It's good to be warm.

Next, the conveyor device 28 for transferring cargo on the trolley 1 and the transfer station S fixed at a fixed position on the floor will be explained.

The conveyor device 28 is a roller conveyor without a driving source, consisting of six rollers 29 arranged in parallel, and a chain 32 between adjacent rollers is connected to a sprocket wheel 31 fitted and fixed to both ends of the rollers 29. Roll around, all the rollers 29
are linked so that they rotate in unison.

At the center of the shaft of the roller 29 at the left end in FIG. 1, a meshing gear 33 is provided which receives a drive from a station S, which will be described later.

As shown in FIGS. 1 and 2, the load transfer station S consists of a roller conveyor, and a large number of rollers 35 bearing on the frames 34 on both sides are connected to each other at both ends, similar to the roller conveyor on the cart 1 described above. On the sprocket wheel 36 that is fitted and fixed,
A chain 37 is passed between adjacent rollers so that all the rollers 35 are interlocked and rotated in unison. The roller 35 at the front end is provided with a meshing gear 43 having a smaller diameter than the roller 35 at the center, similar to the meshing gear 33 described above.

A connecting gear 44 is provided in mesh with the meshing gear 43 in the following manner.

That is, a pair of levers 45 are rotatably supported by the shaft of the roller 35 at the front end.
A large-diameter connecting gear 44 is rotatably supported by a shaft 46 at an intermediate position of the lever 45, and a rod 47a end of a fluid cylinder 47 whose rear end is fixed to the frame 34 of the station S is connected to the tip of the lever 45. When the fluid cylinder 47 is expanded and contracted, the connecting gear 44 is constantly meshed with the meshing gear 43, and the state in which it protrudes forward of the station S (dashed line in FIG. 1) and the state in which it is sunk into the station S (in FIG. 1) are created. (dashed line).

Next, the stopping cam device 19 provided on the machine frame 48 of the track 3 and the stopper device 49 provided on the lower surface of the truck 1 will be explained.

As shown in FIGS. 1 and 2, the stop cam device 19 has one end 51a, 52b pinned to the ends of arms 55, 56 which are rotatable around support shafts 53, 54 erected on the machine frame 48. Two cam bars 51, 52 connected to each other by 57 and 58 and whose other ends 51b and 52b are connected to each other by a pin 59, and the cam bars 51, 52.
The rod 61a end of the moving fluid cylinder 61 is connected by a pin 64 to the end of an arm 63 which can pivot around a support shaft 62 erected on the machine frame 48. The pin 65 at the intermediate position of the arm 63 and the two cam bars 5
It is connected to the pin 66 near the connecting point of cam bars 1 and 52 by a short link plate 67, and when the fluid cylinder 61 expands and contracts, the connecting part of the two cam bars 51 and 52 advances and retreats toward the direction of the drive shaft 4. , FIG. 2 shows a state in which the cam roller 18 is in contact with the connecting portion and moves in a dogleg shape in plan view, and FIG. 2 shows a substantially straight line in plan view when the cam roller 18 is not engaged. It is designed to be displaced over two states, the state shown by the chain line.

When the cam bars 51 and 52 are displaced in a dogleg shape, the cam roller 18 is moved and the support guide 7 is moved as described above, the position of the friction disk 9 is displaced, and the cart 1 is stopped. However, another arm 68 formed integrally with the arm 63 is protruded from the support shaft 62 to support it, and the cam bar 5
1,52 as the arm 6 is displaced in a dogleg shape.
8 turns from the position shown by the chain line in FIG. 2 to the position shown by the solid line, the stopper device 4 provided on the lower surface of the truck
9 is locked by the upper end of the arm 68, and the carriage 1
is designed to stop accurately at the desired stopping position.

Reference numeral 69 is a regulating plate that regulates the rotation range of the arm 68, that is, the stroke end of the fluid cylinder 61.

The stopper device 49 on the trolley 1 side is connected to the bracket 7
A stopper block 7 is swingably supported by 1.
The stopper block 72 has a pair of protrusions 73 protruding from the base end thereof, and swings only within a certain angle range, and the tip of the stopper block 72 abuts and locks the tip of the arm 68. However, since this stopper block 72 is able to swing freely within a certain angle range as described above, it is possible for the carriage 1 to approach the arm 68 from any direction and stop. In other words, no matter which side surface of the arm 68 the stopper block 72 comes into contact with, the truck 1 always stops at a fixed stop position with respect to the arm 68.

When restarting the truck 1, the fluid cylinder 61
When the cam bars 51 and 52 are brought into a substantially straight line as described above, the arm 68 turns to the position shown by the chain line in FIG. Become.

The traveling bogie device of this example is configured as described above, and by displacing the stopping cam device 19 and the arm 68 to the operating position, the bogie 1 is decelerated and then accurately stopped at the station S position. The connecting gear 44 is made to protrude so that the roller conveyor on the station S and the roller conveyor on the trolley 1 are interlocked and connected, and the drive motor 4
2, the load is transferred from the top of the truck 1 to the station S, or from the top of the station S to the truck 1.
However, in the traveling bogie device of this invention, the wheels 2 have the first rotating body portion 2a that comes into contact with the upper surface of the running track and the second rotating body that comes into contact with the side surface, as described above. The first and second rotary body portions 2a and 2b are independently and rotatably supported on the trolley 1, and the tip of the second rotary body portion 2b is enlarged into a truss shape. Since it is formed in the large diameter portion 2C, the first and second rotating body portions 2a, 2
Due to the difference in the contact position of b to the running track 3,
Even if there is a difference in the rotational speed between the first and second rotating body parts 2a and 2b, the truck 1 can run smoothly without slipping, and the large diameter portion 2C prevents the truck 1 from floating. This also prevents the trolley 1 from running smoothly.

That is, in the above-mentioned traveling trolley device, the friction disk 9 is pressed against the drive shaft 4 for traveling, so when the actual weight of the trolley becomes lighter, such as when there is no load on the trolley 1. In this case, bogie 1 is on track 3
The carriage 1 tends to float upward, and the downward pressing force of the friction disk 9 by the spring 11 is insufficient.
However, since the large diameter portion 2C prevents the bogie 1 from lifting off the running track 3, the friction disk 9 is always pressed against the drive shaft 4 with an appropriate pressure, so that the truck 1 runs smoothly.

In addition, in the above example, the curvature of the curved surface is particularly smaller than the curvature of the running track 3, and there is no contact with the running track 3 at two points, so the rotation of the second rotating body portion 2b is smooth. This also allows the trolley 1 to run even more smoothly.

In any case, as described above, in the traveling bogie device of the present invention, the running track is cylindrical, and the wheels of the bogie contact the upper surface of the running track. It consists of a body portion and a second rotating body portion that comes into contact with the side surface of the running track, and the first and second rotating body portions are independently rotatably supported on a truck, and the second rotating body portion is
Since the tip of the rotating body part is made into a large diameter part that expands in a rattling shape, it prevents the cart from lifting up.
It runs extremely smoothly.

There have also been no accidents such as wheels falling off.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view of the traveling bogie device and the station, FIG. 2 is a plan view of the same, and FIG. 3 is a sectional view taken along the line -- in FIG. 1 with the stopping cam device omitted. DESCRIPTION OF SYMBOLS 1... Truck, 2... Wheel, 2a... First rotating body part, 2b... Second rotating body part, 2C... Large diameter part, 3... Running track, 4... Drive shaft, 9 ...Friction disk.

Claims (1)

[Scope of utility model registration request] A drive shaft is arranged along the running track of the truck, and a rotatable friction disk slightly inclined with respect to the surface of the drive shaft is provided on the truck, and the friction disk is pressed onto the drive shaft. A traveling bogie device for transporting a bogie along a running track, wherein the running track is cylindrical, and the wheels of the bogie are in contact with the upper surface of the running track, and a first rotating body portion and a side surface of the running track. a second rotating body portion that comes into contact with the first,
A running trolley characterized in that the second rotary body portions are independently rotatably supported on the truck, and the tip of the second rotary body portion is formed into a large-diameter portion that is enlarged in a truss shape. Device.