JPS61282164A - Truck for curve track - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a bogie for a curved track that travels while being guided by a curved track, and more particularly to a suspension mechanism of the bogie.

[Conventional technology]

Conventionally, the suspension mechanism of this type of bogie has been a so-called two-axle system in which, for example, an axle is rotatably attached to the front and rear of the bogie body, and wheels are rotatably mounted on both ends of the front and rear axles. There is a car version.

In addition, the bogie is rotatably attached to the front and rear of the bogie body through a center plate, and axles are rotatably attached to the front and rear of the front and rear bogies, and both ends of the front and rear axles are rotatably attached to the front and rear bogies. There is a so-called bogie car that has wheels that are rotatably mounted on an axis.

[Problem that the invention seeks to solve]

In the conventional two-axle system mentioned above, if the distance between the front and rear axles is too large, it becomes difficult to travel along a curved track, so there is a problem that the length of the bogie body in the longitudinal direction cannot be increased.

In addition, in the case of a bogie, the bogie can rotate freely relative to the bogie body, so even if the length of the bogie body in the front and back direction is increased, it is easy to travel along a curved track. The carts attached to the front and rear of the cart body are simply rotatably attached via the center plate, and the structure is the above-mentioned two-axle system, so the distance between the front and rear axles of the cart is very large. Then, there is a problem similar to that of the above-mentioned two-axle system.

Therefore, with the above-mentioned conventional configuration, it is difficult to run smoothly unless it is on a curved track with a large radius of curvature corresponding to the distance between the front and rear axles, and it is impossible to run on a curved track with a small radius of curvature, and the turning is difficult. Therefore, there is a problem in that it is not suitable for running on a production line, for example.

Therefore, the present invention was developed in view of the above points, and an object of the present invention is to provide a bogie for curved tracks that can run stably along a curved track with a small radius of curvature and can easily turn around, and is therefore suitable for production lines and the like. That is.

[Means for solving problems]

In the present invention, an axle is rotatably mounted horizontally at the lower part of one side in the front-rear direction of a bogie body, an idler wheel is rotatably mounted at one end of the axle, and a drive wheel is mounted at the other end of the axle. The wheel is fixed, a drive fIJ mechanism is provided on the bogie body to rotationally drive the L axle, and driven wheels are rotatably attached to both sides of the lower part of the use side of the bogie body in the longitudinal direction. It is something.

[Effect]

Since the present invention is configured as described above, when the drive mechanism provided on the bogie body is operated while the bogie is placed on the curved track via the drive wheel on one side, the idler wheel, and the driven wheel on the other side. , an axle connected thereto is rotationally driven, and a drive wheel integrated with the axle is rotationally driven to move the bogie forward along a curved track.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings.

In the figure, 1 is an annular curved track, and this curved track 1 is composed of an inner track 2 and an outer track 3, and both tracks 2 and 3 are arranged in parallel with a constant distance maintained at all times. It is set up. In addition, an auxiliary track 5 is connected in the middle of the above-mentioned two tracks 2.3 via a switching point 4, and this auxiliary track 5 is always kept at a constant interval so that its respective ends approach and separate from the above-mentioned both tracks 2.3. It is composed of an inner extended track 6 and an outer extended track 7 that are arranged in parallel while being held.

Reference numeral 8 denotes a bogie that runs on the curved track 1. The bogie 8 has a bogie body 10 with a floor surface 9 on the right side, and a connecting frame 11 faces the lower part of one side in the front and back direction of the bogie body 10. Both ends of the rolling shaft 12 are inserted into and supported by a bearing portion approximately in the middle of the opposing connecting frames 11, which are integrally attached in parallel. Further, connecting plates 14 which are provided on both sides of the rolling shaft 12 and protrude upwardly from an intermediate portion of the movable frame 13 are mounted via bearings 15 so as to be rotatable in the left and right directions. Further, both ends of an axle 18 are rotatably suspended horizontally between the lower ends of mounting plates 16 that protrude from opposite lower sides of the movable frame 13 with bearings 11 interposed therebetween. Also, a bearing 1 is attached to one end of this axle 18.
An idler wheel 20 is rotatably mounted on an axis via a shaft 9, and a drive wheel 21 is integrally fixed to the other end of the axle 18 via a key 22. Further, a driving gear 23 is integrally fixed to the axle shaft 18 adjacent to the inner side of the driving wheel 21 via the key 22. Further, a drive motor I) 24 as a drive mechanism is provided at the lower part of one side of the movable frame 13.
are fixed together, and the output shaft 25 of this drive motor 24
The output gear 2G is fixed integrally with the key 27, and this output gear 26 is connected to the drive vJl! It is interlocked with the fiI wheel 23.

Furthermore, frame brackets 28 are protruded from both sides of the lower portion of the use side in the longitudinal direction of the trolley body 10,
A driven wheel 29 consisting of a free wheel is attached to the frame brackets 28 on both sides so as to be freely pivotable. The driven wheels 29 on both sides are rotatably mounted on a shaft 31 mounted between the lower ends of a bifurcated leg 30 via bearings 32.
A large number of steel balls 3 for rotation are provided on the upper part of this leg body 30.
A mounting plate 34 is rotatably connected via the frame bracket 3, and is integrally fixed to the lower end of the frame bracket 28.

Further, a mounting piece 35 is horizontally protruded from the upper part of one side of the leg body 30 on which the driven wheels 29 on both sides are mounted, and the lower part of the support shaft 36 is integrally fixed to the mounting pieces 35 on both sides. Both ends of a tie rod 37 are rotatably attached to a support shaft 36, and a retaining pin 39 is attached to the upper end of the support shaft 36 via a washer 38.

Thus, the yr1 driving wheel 20, the driving wheel 21, and the driven wheels 22 on both sides have a circumferential side portion 41 that engages with the upper surface portion 40 of the inner raceway 2, the outer raceway 3, the inner extended raceway 6, and the outer extended raceway 7. A large-diameter flange 42 with a mountain-shaped bulge is integrally formed at the inner end, and the outer peripheral surface 43 of this flange 42 is connected to the upper surface 40 of each of the orbits 2.3 and 6°7.
The flange 42 is shaped so that a gap 45 of a predetermined size is formed between the flange 42 and the inner side 44, and this gap 45 prevents the outer circumferential surface 43 of the flange 42 from engaging with the corner angle when traveling on a curve. As well as,
The outer circumferential surface portion 43 and the circumferential side portion 41 are connected to each other by an arcuate connecting portion 46 having a predetermined curvature.

In this structure, the bogie 8 is mounted on the inner track 2 and the outer track 3 of the curved track 1, and its idler wheels 20.
It is mounted via the driving wheel 21 and the driven wheels 29 on both sides.

When the drive motor 24 is started in this state, the axle 18 is decelerated to a predetermined rotational speed and driven to rotate via the output gear 26 fixed to the output shaft 25 and the drive gear 23. Further, as this axle 18 is driven, a drive wheel 21 integrated therewith is rotationally driven, and the bogie 8 is driven forward along the curved track 1 by the drive wheel 21 .

In this case, the idler wheel 20 on the opposite side to the driving wheel 21 is connected to the axle 1
8, the idler wheels 20 provide rotational differences between the inner and outer wheels, that is, the drive wheels 21 and the idler wheels 20, at each curved portion of the curved track 1 and the auxiliary track 5. is absorbed and the vehicle moves forward smoothly. In addition, driven wheels 29 that can turn and rotate are attached to both rear sides of the bogie 8 in the direction of movement, so that the driven wheels 29 on both sides
is rotated smoothly while changing the direction along not only the curved parts of the curved track 1 and the auxiliary track 5 but also the part of the smallest curve. therefore,
The bogie 8 can run stably on the curved track 1 and the auxiliary track 5 having a small radius of curvature. In addition, the rotatable driven wheels 29 provided on both sides of the rear in the direction of travel are attached to tie rods 37.
By linking the wheels so that they can rotate freely, unnecessary turning swings can be prevented when traveling at track junctions, etc. Furthermore, since the axle 18 equipped with the driving wheel 21 and the idler wheel 20 is rotatably attached to the rolling shaft 12 via the movable frame 13, the driving wheel 21 and the idler wheel 20 are always on a curved trajectory due to the rolling action. 1 and the auxiliary track 3a5 to be rotationally driven. Therefore, in practice, it is possible to increase productivity by arranging a plurality of carts 8 on a curved track 1 of a desired configuration and sequentially running the carts 8 along a production line according to each work procedure. can.

In addition, during implementation, the turntable (
It is preferable to provide a turntable (not shown) on which to transfer and convey the loads required for the production line.

In addition, in the above embodiment, a case has been described in which the idler wheel 20 and the drive wheel 21 are used as the front wheels to drive forward, but the invention is not limited to this.If necessary, the idler wheel 20 and the drive wheel 21 can be used as the rear wheels and the drive wheel 21 is rotated in reverse. The vehicle may also be driven to travel backwards.

〔Effect of the invention〕

According to the present invention, an axle having an idler wheel and a driving wheel pivoted thereon is rotatably provided at the lower part of one side in the longitudinal direction of the bogie body, and driven wheels are rotatably provided at both sides of the lower part of the other side. As a result, a suspension mechanism with excellent turning performance is constructed, and it can run smoothly and stably on a curved track with a small radius of curvature, and it is also easy to turn around, making it suitable for use in production runs, for example. It is possible to provide a trolley suitable for traveling along the vehicle.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is an explanatory plan view of a cart placed on a curved track, Fig. 2 is a plan view of the same cart, and Fig. 3 is a side view of the same. Figure 4 is a front view with a part of the drive mechanism cut away, Figure 5 is a side view of the same drive mechanism, and Figure 6 is a side view of the drive mechanism.
The figure is a partially cutaway front view of the driven wheel, and FIG. 7 is a side view of the same. 1... Curved track, 10... Bogie body, 15... Rolling shift, 18... Axle, 20... Idle wheel, 21...
Drive wheel, 29... Driven wheel, 37Φ tie rod. June 6, 1985

Claims (3)

[Claims] (1) A bogie body, and an axle that is rotatably mounted horizontally at the lower part of one side in the front-rear direction of the bogie body, has an idler wheel rotatably mounted on one end, and has a drive wheel fixed to the other end. A bogie for a curved track, comprising: a drive mechanism for rotationally driving the axle; and driven wheels rotatably attached to both lower sides of the other side of the bogie body in the front-rear direction. (2) The curved track bogie according to claim 1, wherein the axle is provided so as to be swingable in the left and right directions with respect to the bogie body. (3) The curved track bogie according to claim 1 or 2, wherein the driven wheels on both sides are rotatably connected by tie rods.