JP2022030071A - Trajectory type truck - Google Patents

Abstract

To provide a trajectory type truck which prevents the truck from floating upward when the truck passes a curved track part.SOLUTION: A trajectory type truck 5 travels along a traveling rail 3 with a curved track 31. Guide rollers 19 are installed in a vehicle body 9 and roll on side parts 3b of the traveling rail 3. Stoppers 21 are installed on a truck body 9 and position under a lower part 3c of the traveling rail 3 and this prevents the vehicle body 9 from floating upward. The stoppers 21 are installed under the guide roller 19 and when the stoppers position inside of the curved track 31, the lower part 3c of the traveling rail 3 has involved parts 35 in first directions which are directions of normal lines at points P of the traveling rail 3 and along which straight lines SL crossing a rotation axis 19a of the guide roller 19 extend.SELECTED DRAWING: Figure 4

Description

The present invention relates to a tracked bogie, in particular, a tracked bogie that runs on a track and is prevented from surfacing by a stopper provided on the vehicle body.

The tracked bogie system has a pair of traveling rails constituting the track, and a plurality of tracked bogies traveling along the traveling rails.
The tracked bogie has, for example, a bogie body provided with a transfer device for transferring articles, and wheels on both the left and right sides. One wheel is a driving wheel and the other wheel is a slave. It is a driving wheel. The tracked bogie also has guide rollers that abut on the left and right guide rails.

Conventionally, there is known a technique for preventing the wheels from floating when the acceleration / deceleration of the bogie changes (see, for example, Patent Document 1).
As another technique for preventing lifting, a stopper for preventing lifting, which is provided on the bogie body and is provided below the lower part of the traveling rail, is used.

Japanese Patent No. 3767306

Conventionally, the tracked bogie was equipped with a stopper to prevent lifting, but when the tracked bogie passes through the curved track at high speed, the bogie may lift and derail from the stopper's hooking allowance. rice field.
In addition, even when the load of the transported object is unbalanced, the trolley may unintentionally lift up.

An object of the present invention is to make it difficult for a tracked bogie to float when passing through a curved track portion.

Hereinafter, a plurality of aspects will be described as means for solving the problem. These aspects can be arbitrarily combined as needed.

The tracked bogie according to a seemingly present invention travels along a rail having a curved track, and includes a bogie body, wheels, guide rollers, and a stopper.
The wheels are provided on the bogie body and roll on the rails.
The guide roller is provided on the bogie body and rolls on the side of the rail.
The stopper is provided on the bogie body and is located below the lower part of the rail to prevent the bogie body from rising.
The stopper is provided below the guide roller and, when located inside the curved track, is the lower part of the rail in the first direction extending a straight line that is normal to one point of the rail and intersects the axis of rotation of the guide roller. It has a hanging allowance with.
The "side of the rail" is a support surface that faces the side of the rail and extends in the rail extension direction. The "lower part of the rail" is a support surface that faces downward on the rail and extends in the direction of extension of the rail.
In this tracked bogie, the stopper for preventing lifting has a hooking allowance on the normal line between the guide roller and the rail contact, so it is possible to secure a sufficient hooking allowance by the stopper even when passing a curve, and the tracked bogie Derailment can be prevented.

The stopper may be provided at a height that does not come into contact with the lower part of the rail during normal traveling.
Since this tracked bogie does not come into contact with the rail during normal running, it does not cause resistance during running.

The stopper is fixed to the guide roller and may rotate integrally with the guide roller.
In this tracked bogie, the stopper can roll on the lower part of the rail, so that the stopper does not easily damage the rail when a force for raising the bogie is applied.
In this tracked bogie, the stopper and the guide roller can be integrally rotated so that the stopper and the guide roller can be fixed to each other or both can be made into an integral part.

The stopper may be fixed to a shaft that rotatably supports the guide roller.
In this tracked bogie, it is not necessary to make the shape of the portion serving as the hooking allowance of the stopper circular or annular.

The stopper may be a roller having a rotation axis extending in the first direction.
In this tracked bogie, the resistance acting on the rail from the stopper becomes small when the force for raising the bogie is applied.

In the tracked bogie according to the present invention, it becomes difficult to lift when passing through a curved track portion.

The partial plan view of the tracked bogie system of 1st Embodiment. Partial front view of the traveling mechanism. The schematic plan view which shows the operation state of the traveling part in a curved section. Enlarged view of FIG. The partial plan view of the traveling mechanism of 2nd Embodiment. Partial front view of the traveling mechanism of the third embodiment.

1. 1. 1st Embodiment (1) Overall configuration of tracked bogie system The tracked bogie system 1 will be described with reference to FIGS. 1 and 2. FIG. 1 is a partial plan view of the tracked bogie system of the first embodiment. FIG. 2 is a partial front view of the traveling mechanism.
The tracked bogie system 1 is a system for transporting an article (not shown).
The tracked bogie system 1 has a traveling rail 3 and one or more tracked bogies 5 traveling on the traveling rail 3.

The traveling rail 3 is a member for forming a traveling path on which the tracked bogie 5 travels. The traveling rail 3 is provided on the floor 7 and is composed of a pair of parallel rails.
Specifically, the traveling rail 3 includes a driving wheel traveling rail 3A on which the driving wheels (described later) are mounted, and a driven wheel traveling rail 3B on which the driven wheels (described later) are mounted.
The traveling rail 3 is a track-shaped traveling path in an overall plan view, and includes a straight section and a curved section. The curved section has, for example, a semi-arc shape, and in the curved section, the pair of curved tracks 31 (FIG. 3) of the traveling rail 3 are curved in a semi-arc shape. In this embodiment, the drive wheel traveling rail 3A is inside in the curved section.

As shown in FIG. 2, each traveling rail 3 has an upper portion 3a, a side portion 3b, and a lower portion 3c. The upper portion 3a is a support surface extending upward in the rail and extending in the rail extending direction. The side portion 3b is a support surface that faces the rail side and extends in the rail extension direction. The lower portion 3c is a support surface extending downward in the rail and extending in the rail extension direction.
It is sufficient that the traveling rail 3 has the above structure, and the shape and the position of each part are not limited.

The tracked bogie 5 is guided by the traveling rail 3 and self-propells to convey an article (not shown).
The tracked carriage 5 has a vehicle body 9.
The tracked carriage 5 has a transfer device 11 installed on the vehicle body 9. The transfer device 11 is a device for mounting an article (not shown) and transferring it to another device. The type of the transfer device 11 is not particularly limited.

The tracked carriage 5 has a traveling mechanism 13. The traveling mechanism 13 is a mechanism for traveling the vehicle body 9.
The traveling mechanism 13 has a driving wheel 15. The drive wheel 15 is provided on the vehicle body 9 and rolls on the upper portion 3a of the drive wheel travel rail 3A among the travel rails 3. Specifically, the drive wheels 15 are two wheels arranged side by side in the traveling direction, and more specifically, the driving wheels 15 are on the left side of the vehicle body 9 facing the front side in the traveling direction (left side in FIG. 1). It is provided before and after each. The distance between the two drive wheels 15 is set to be relatively large in the traveling direction, whereby the traveling of the dolly traveling at high speed is stabilized. The drive wheel 15 is arranged inside in the curved section.

The traveling mechanism 13 has a motor 17. The motor 17 drives the drive wheels 15. Specifically, two motors 17 are provided to drive the two drive wheels 15, respectively. When the motor 17 drives the drive wheels 15, the tracked bogie 5 travels while being guided by the traveling rail 3.

The traveling mechanism 13 has a guide roller 19. The guide roller 19 is a member that guides the vehicle body 9 so that the vehicle body 9 does not swing to the left or right with respect to the traveling rail 3. The guide roller 19 is rotatably provided on the vehicle body 9, and rolls the side portion 3b of the traveling rail 3 as shown in FIG. Specifically, the guide roller 19 is rotatably supported around a shaft 20 extending in the vertical direction.
More specifically, as shown in FIG. 1, two guide rollers 19 are provided on the left and right sides of each drive wheel 15. That is, the guide rollers 19 correspond to a pair of one driving wheel 15 that sandwiches the traveling rail 3 from both left and right sides corresponding to the front side portion of the driving wheel 15, and to correspond to the rear side portion of the driving wheel 15. It is composed of a pair of wheels sandwiching the traveling rail 3 from both the left and right sides.
The four guide rollers are integrally rotatable around an axis extending in the vertical direction with respect to the vehicle body 9.

The traveling mechanism 13 further has one driven wheel 22 that supports the vehicle body 9 with respect to the driven wheel traveling rail 3B. The driven wheel 22 is a caster wheel arranged so as to be able to freely turn with respect to the vehicle body 9. The driven wheel 22 is arranged outside in the curved section. The driven wheels 22 may be two wheels.

(2) Lifting prevention stopper The traveling mechanism 13 has a stopper 21. The stopper 21 is provided on the vehicle body 9 and is located below the lower portion 3c of the traveling rail 3 to prevent the vehicle body 9 from rising. Specifically, as shown in FIG. 1, the stopper 21 is provided corresponding to the left side of the guide rollers 19 on both the left and right sides, and is provided below the guide rollers 21. More specifically, as shown in FIG. 2, the stopper 21 is fixed to the guide roller 19 by a bolt 33 and rotates integrally with the guide roller 19.
The stopper 21 is set to a height that does not come into contact with the lower portion 3c of the drive wheel traveling rail 3A of the traveling rail 3 as shown in FIG. 2 during normal traveling (for example, when the vehicle body 9 moves on a track other than the curved track 31). It is provided. Then, when the vehicle body 9 is lifted from the traveling rail 3, the upper surface of the stopper 21 comes into contact with the lower portion 3c of the driving wheel traveling rail 3A of the traveling rail 3.

As shown in FIG. 1, the stopper 21 has a circular shape like the guide roller 19 and has a diameter larger than that of the guide roller 19 in a plan view. Therefore, the stopper 21 has an extension portion 21a extending radially outward from the guide roller 19.

(3) Function of Stopper while the tracked bogie is moving on a curved track The function of the stopper 21 while the tracked bogie 5 is moving on a curved track 31 will be described. FIG. 3 is a schematic plan view showing an operating state of the traveling portion in the curved section. FIG. 4 is an enlarged view of FIG.
During the above operation, as shown in FIGS. 3 and 4, the stopper 21 is located inside the curved track 31, and has a hooking allowance 35 (hatched portion in FIG. 4) with the lower portion 3c of the traveling rail 3. is doing.

More specifically, due to the configuration of the stopper 21, the stopper is in the first direction (arrow X) where the straight line SL that is normal to one point P of the traveling rail 3 and intersects the rotation axis 19a of the guide roller 19 extends. 21 has a hooking allowance 35 with the lower portion 3c of the traveling rail 3. The hooking allowance 35 is a part of the extension portion 21a of the stopper 21.
As a result of the above, the stopper 21 surely prevents the vehicle body 9 from rising.

(4) Effect In this tracked bogie 5, the stopper 21 for preventing lifting is secured on the normal line between the guide roller 19 and the rail contact, so that even when the vehicle body 9 passes through the curved track 31. A sufficient hooking allowance 35 can be secured by the stopper 21, and derailment of the vehicle body 9 can be prevented.

As described above, the stopper 21 is provided at a height that does not come into contact with the lower portion 3c of the drive wheel traveling rail 3A of the traveling rail 3 during normal traveling (when traveling in a straight line portion). Therefore, no resistance during running is generated.

As described above, the stopper 21 is fixed to the guide roller 19 by a bolt 33 and rotates integrally with the guide roller 19.
Therefore, since the stopper 21 can roll the lower portion 3c of the traveling rail 3, the stopper 21 is less likely to damage the traveling rail 3 when a force for raising the vehicle body 9 is applied.
Further, since the portion of the stopper 21 that abuts and slides on the traveling rail 3 changes due to rotation, the life of the stopper 21 is extended.
As a modification, the stopper 21 and the guide roller 19 may be integrated parts.

2. 2. In the second embodiment, the stopper 21 is provided so as to rotate integrally with the guide roller, but the stopper 21 does not have to rotate integrally with the guide roller. Such an embodiment will be described as a second embodiment with reference to FIG. FIG. 5 is a partial plan view of the traveling mechanism of the second embodiment.

The stopper 21A is fixed to a shaft 20 that rotatably supports the guide roller 19 by bolts 37. Therefore, the stopper 21A does not rotate.
From the above, it is not necessary to make the shape of the portion 21Aa that serves as the hooking allowance of the stopper 21A circular or annular in a plan view.

3. 3. Third Embodiment In the first embodiment, the stopper is rotatable around a rotation axis extending in the vertical direction, but the direction of the rotation axis of the stopper is not particularly limited. Such an embodiment will be described as a third embodiment with reference to FIG. FIG. 6 is a partial front view of the traveling mechanism of the third embodiment.
The stopper 21B is a roller having a rotation axis extending in a first direction (a normal line with respect to one point P of the traveling rail 3 and an extension direction of a straight line SL intersecting the rotation axis 19a of the guide roller 19). The stopper 21B is fixed to a shaft 20 that rotatably supports the guide roller 19 by bolts 39.
In this tracked bogie system 1, the stopper 21B can roll the lower portion 3c of the traveling rail 3 independently of the guide roller 19. Therefore, the stopper 21B is less likely to damage the traveling rail 3 when a force for raising the vehicle body 9 is applied.

In the embodiment, the position and number of guide rollers and the position and number of stoppers are not particularly limited.
However, as shown in FIG. 4 of the first embodiment, the effect of the stopper 21 is high in the structure in which the pair of guide rollers 19 arranged apart from each other in the traveling direction are provided with the pair of stoppers 21. For example, unlike the present invention, when the stopper is provided between the traveling directions of the pair of guide rollers 19, the stopper cannot be sufficiently arranged on the outer side in the radial direction, and the hooking allowance cannot be sufficiently secured. be.

4. Common items of the embodiment The tracked bogie (for example, the tracked bogie 5) travels along a rail (for example, a traveling rail 3) having a curved track (for example, a curved track 31), and the bogie main body (for example) For example, it includes a vehicle body 9), wheels, a guide roller, and a stopper.
The wheels (for example, the drive wheels 15) are provided on the bogie body and roll on the rails.
The guide roller (for example, the guide roller 19) is provided on the bogie body and rolls on the side portion of the rail.
The stoppers (for example, the stopper 21, the stopper 21A, and the stopper 21B) are provided on the bogie body and are located below the lower part of the rail to prevent the bogie body from rising.
The stopper is provided below the guide roller, and when it is located inside the curved track, it is a normal line to one point (for example, one point P) of the rail and is a straight line intersecting the rotation axis of the guide roller (for example). In the first direction in which the straight line SL) extends, it has a hooking allowance (for example, a hooking allowance 35) with the lower part of the rail.
In this tracked bogie, the stopper for preventing lifting has a hooking allowance on the normal line between the guide roller and the rail contact, so it is possible to secure a sufficient hooking allowance by the stopper even when passing a curve, and the tracked bogie Derailment can be prevented.

5. Other Embodiments Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the gist of the invention. In particular, the plurality of embodiments and modifications described herein can be arbitrarily combined as needed.
The plan view shape of the stopper in the second embodiment is not limited to a circular shape.

INDUSTRIAL APPLICABILITY The present invention can be widely applied to a tracked bogie that runs on a track and is prevented from surfacing by a stopper provided on the vehicle body.

1: Tracked trolley system 3: Traveling rail 3A: Drive wheel rail 3B: Driven wheel rail 3a: Upper part 3b: Side 3c: Lower part 5: Tracked trolley 7: Floor 9: Body 11: Transfer device 13: Traveling mechanism 15: Drive wheel 17: Motor 19: Guide roller 20: Shaft 21: Stopper 21a: Extension part 22: Driven wheel 31: Curved track 35: Hooking allowance

Claims (5)

A tracked bogie that runs along rails with curved tracks.
The dolly body and
Wheels provided on the bogie body and rolling on the rails,
A guide roller provided on the bogie body and rolling on the side of the rail,
It is provided with a stopper provided on the bogie body and prevented from lifting of the bogie body by being located below the lower part of the rail.
The stopper is provided below the guide roller, and when it is located inside the curved track, it is a normal line to one point of the rail and a first direction in which a straight line intersecting the rotation axis of the guide roller extends. Has a hooking allowance with the lower portion of the rail.
Tracked trolley. The tracked carriage according to claim 1, wherein the stopper is provided at a height that does not come into contact with the lower portion of the rail during normal traveling. The tracked carriage according to claim 1 or 2, wherein the stopper is fixed to the guide roller and rotates integrally with the guide roller. The tracked carriage according to claim 1 or 2, wherein the stopper is fixed to a shaft that rotatably supports the guide roller. The tracked bogie according to claim 1 or 2, wherein the stopper is a roller having a rotation axis extending in the first direction.

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