JP2006137390A - Wheel turntable of rail truck - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a turntable with a simple structure, reduced costs without requiring adjustment of a turning angle of the turntable and limiting an approach direction of a truck to the turntable. <P>SOLUTION: The turntable 10 is provided in a cross part of a plurality of rails 130, 140 different in a direction, and supports wheels 110 with flanges of the rail truck 100 capable of traveling on the rails to horizontally turn in steering and turning the wheels. A support part for supporting tread of the wheels with the flanges of the rail truck is formed into a shape of a rotating body coaxial with a horizontally turning shaft, and passing space for allowing the flange parts of the wheels to pass through is provided between the support part and end parts of the rails. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a turntable for a wheel of a rail carriage that travels on a rail.

2. Description of the Related Art Conventionally, in an automatic cargo transportation system in a warehouse or the like, a wheel turning type rail carriage that automatically travels on a rail is used. As illustrated in FIG. 3, the rail carriage 100 includes a plurality of flanged wheels 110 at the lower portion of the vehicle body, and these wheels 110 are automatically steered by being turned by a steering mechanism (not shown) and driven by a motor 120. Autorun. In addition, as illustrated in FIG. 4, a plurality of sets of rails 130 and 140 having different directions are laid on a floor surface in a warehouse or the like, and a turntable 150 is provided at an intersection of the rails 130 and 140, respectively. It is arranged. Thus, each wheel 110 of the carriage 100 traveling on one rail 130 is caused to enter the turntable 150, and each wheel 110 is placed on the turntable 150 to be steered. 140
The carriage 100 can be traversed upward, or can be turned on a separate circular rail.

Incidentally, as illustrated in FIG. 5, the conventional turntable 150 includes a table 151 that can be horizontally rotated, and an intermediate rail portion 152 that supports the tread surface of the flanged wheel 110 on the table 151, and the wheel 110. And a groove portion 153 that allows passage of the flange portion. Therefore, the conventional turntable 150 adjusts the rotation angle of the table 151 by adjusting the position of the stopper 155 after adjusting the centering of the table 151 by the centering mechanism 154 including bolts and nuts. Therefore, it is necessary to align the intermediate rail portion 152 and the rails 130 and 140.

Further, the conventional turntable 150 includes an intermediate rail portion 15 extending from the rails 130 and 140.
2 is limited to the direction of the intermediate rail portion 152. For example, as shown in FIG. 5, after the direction of the intermediate rail portion 152 is adjusted to one rail 140, another carriage is no longer attached to the other rail. There is a problem that it is impossible to enter the turntable 150 from the rail 130 side. Furthermore, since it is necessary to provide the intermediate rail part 152 and the groove part 153 on the table 151, there is a problem that the cost increases.

As other prior art related to the turntable of the rail carriage, the following are proposed, but these are also provided with an intermediate rail on the turntable,
It had the above-mentioned difficulties as well.
JP-A-5-97032 JP 60-258544 A JP-A-52-105415

The present invention has been made in view of the above-described drawbacks of conventional turntables of rail carriages, and it is not necessary to adjust the rotation angle of the turntable, and the direction in which the carriage enters the turntable. The technical problem is to provide a turntable that is simple in structure and capable of reducing costs.

The present invention is arranged at the intersection of a plurality of rails having different directions, and can support a flanged wheel of a rail carriage that can travel on the rail and can rotate horizontally with respect to the floor surface when the wheel is turned. A turntable, comprising a base fixed to a floor surface, and a support portion provided so as to be horizontally rotatable with respect to the base, and capable of supporting a tread surface of a flanged wheel of the rail carriage, The upper part of the support part is formed in a rotating body shape coaxial with the horizontal rotation shaft, and the wheel flange part passes between the upper part of the support part and the end of the rail on the entire circumference of the support part. It is characterized by providing a passage space that allows the

In addition, the present invention includes a rolling portion that supports the outer periphery of the flange portion of the wheel and rolls the flange portion when the wheel of the rail carriage moves in the passing space.

Furthermore, the present invention is characterized in that the rolling part is provided integrally with the support part.

Furthermore, the present invention is characterized by comprising braking means capable of braking horizontal rotation of the support portion.

In the turntable according to the present invention, the upper portion of the support portion for supporting the tread of the flanged wheel is formed in a rotating body shape, and the flange portion is provided between the rail and the entire upper periphery of the support portion. Since the passage space that allows passage is secured, the wheel of the carriage can be entered into the turntable regardless of the pivot position of the support part, and it enters by the pivot position of the intermediate rail as in the conventional product. There are no difficulties with limited directions.

In addition, since the carriage can enter regardless of the rotation position of the support portion in this way, it is not necessary to adjust the rotation angle of the intermediate rail portion as in the conventional product, and the alignment of the intermediate rail portion and each rail is adjusted. There is no hassle to do. Further, since the support portion can be configured extremely simply and there is no need to provide an intermediate rail on the table as in the conventional product, a cheaper turntable can be provided to the market.

Hereinafter, the turntable 10 of this embodiment is demonstrated, referring FIG.1 and FIG.2. In the following description, the same reference numerals are given to the constituent members described in the background art section, and detailed description thereof will be omitted.

As shown in FIGS. 1 and 2, the turntable 10 of the present embodiment is mainly provided with a base 1 disposed on a floor surface, and is provided so as to be horizontally rotatable with respect to the base 1. A bearing portion 2 capable of supporting the tread 111 of the flanged wheel 110, braking means 3 capable of braking horizontal rotation of the bearing portion 2, and a rolling portion 4 capable of supporting the flange portion 112 of the wheel 110, It is composed of

The base 1 is fixed by a plurality of leg clampers 12 to the bottom of the frame 11 fixed to the intersection of a plurality of sets of rails 130 and 140 having different rail directions, and is provided on the wall frame of the frame 11. Each of the rails 130, 1 is provided by a plurality of centering mechanisms 13 made of bolts and nuts.
It is arranged so that the position relative to 40 can be adjusted.

As shown in FIG. 2, a pivot pin 22 is screwed to the support portion 2 through a flange plate 21 at the center of the lower portion thereof, and the lower portion of the pivot pin 22 is inserted into the bush 23 of the central hole of the base portion 1. Has been. In this way, the support portion 2 rotates horizontally with respect to the base portion 1. Also,
The support portion 2 includes a flange portion 24 on the outer periphery of the lower portion thereof, and this flange portion 24 is slidably supported by a thrust washer 25 disposed on the periphery of the upper surface of the base portion 1.

The upper part of the support part 2 is formed in a cylindrical shape coaxial with the horizontal rotation axis. And between the upper part of this support part 2 and the edge part of each rail 130,140, the flange part 11 of the wheel 110 is provided.
A passage space 26 that allows passage of two is provided.

As shown in FIG. 2, the braking means 3 includes an upward taper surface 31 formed on the upper outer peripheral surface of the pivot pin 22, a brake ring 32 having an inclined surface that can come into surface contact with the taper surface 31 on the inner periphery, a pivot The disc spring 33 is configured to bias the pin 22 upward. When the wheel 110 of the carriage 100 is not placed on the support portion 2, the pivot pin 22 is pushed upward by the urging force of the disc spring 33 and the tapered surface 31 comes into contact with the brake ring 32, and the frictional resistance between the two As a result, the horizontal rotation of the support portion 2 is braked. When the wheel 110 is placed on the support portion 2, the pivot pin 22 is pushed down against the biasing force of the disc spring 33 by the load of the carriage, and the tapered surface 31 is separated from the braking ring 32. The support portion 2 can freely rotate horizontally.

The rolling part 4 supports the outer periphery of the flange part 112 of the wheel 110 when the wheel 110 moves in the passing space 26, and is formed integrally with the support part 2 in the present embodiment. That is, a stepped portion that is one step lower is formed around the upper portion of the support portion 2 that forms the columnar shape, and the upper surface of the stepped portion is used as the rolling portion 4. Note that the rolling portion 4 is not necessarily provided integrally with the support portion 2, and may be fixed to the frame body 11, for example.

As described above, in the turntable 10 of the present embodiment, the upper part of the support part 2 that supports the tread 111 of the wheel 110 is formed in a cylindrical shape, and the rail extends over the entire upper part of the support part 2. Since the passage space 26 is secured between the rails 130 and 140, the wheel 110 of the carriage 100 is moved from the rails 130 and 140 to the turntable 1 regardless of the rotation position of the support portion 2.
There is no difficulty that the approach direction is limited by the rotation position of the intermediate rail as in the conventional product.

Further, since the carriage 100 can enter regardless of the rotation position of the support portion 2 as described above, it is not necessary to adjust the rotation angle of the intermediate rail portion as in the conventional product. There is no hassle of having to align the position. Moreover, the support part 2 can be configured very simply,
Since there is no need to provide an intermediate rail on the table as in the conventional product, a cheaper turntable can be provided to the market.

Furthermore, since the turntable 10 of the present embodiment is provided with the rolling part 4, this rolling part is used while the wheel 110 of the carriage 100 traveling on the rail is transferred from the end of the rail to the support part 2. 4, the flange portion 112 of the wheel 110 can be supported, and the flange portion 1 is used as it is.
12 can be rolled. Therefore, smoother transfer to the support portion 2 is possible. In addition, in this embodiment, since the rolling part 4 is provided integrally with the support part 2, it is possible to further reduce the cost.

Furthermore, in the turntable 10 of the present embodiment, the braking means 3 for braking the horizontal rotation of the support portion 2 when the wheel 110 is not placed on the support portion 2 is provided. There is no risk that the turntable 10 will rotate unexpectedly when the operator stands on the turntable 10.

Although the turntable 10 of the present embodiment has been described above, the turntable according to the present invention can be implemented in other forms.

For example, in the above embodiment, the two sets of rails 130 and 14 intersecting each other at an angle of 90 degrees.
Although an example in which the turntable 10 is disposed at the intersection of 0 is described, the turntable according to the present invention is disposed at the intersection of three or more sets of rails that intersect at an angle other than 90 degrees, for example. It is also possible.

Moreover, in the said embodiment, although the upper part of the support part 2 is formed in the column shape, of course, this invention is not limited to this, For example, it can also form in a truncated cone shape or an inverted truncated cone shape. It is. At least the upper portion of the support portion 2 can stably place the wheel 110 of the carriage 100 on the upper surface, and a passage space allowing passage of the wheel flange portion can be secured between the side surface of the support portion and the rail end portion. If there are, it is possible to change the design to various shapes.

Furthermore, in the above embodiment, as shown in FIG. 2, when the wheel 110 is placed on the support portion 2, the flange portion 112 is configured to come into contact with the rolling portion 4 at the same time. However, the present invention is not limited to this, and the flange portion 112 and the rolling portion 4 may be separated when the wheel 110 is placed on the support portion 2.

The present invention can be variously improved, modified, and modified based on the knowledge of those skilled in the art without departing from the spirit of the present invention.
It can be implemented in a modified form. In addition, any invention-specific matters may be replaced with other technologies within a range where the same action or effect occurs, and the integrally-configured invention-specific matters are constituted by a plurality of members. Alternatively, the invention specific items configured by a plurality of members may be implemented in an integrated configuration.

It is the whole turntable front view of this embodiment. It is principal part sectional drawing of the turntable. It is a schematic plan view which shows an example of the conventional rail trolley | bogie. It is a schematic plan view which shows the arrangement | positioning state of the conventional turntable. It is a schematic plan view which shows the structure of the conventional turntable.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Turntable 1 Base 2 Supporting part 26 Passing space 3 Braking means 4 Rolling part 130, 140 Rail 100 Rail carriage 110 Flange wheel 111 Wheel tread
112 Wheel flange

Claims (4)

A turntable that is disposed at the intersection of a plurality of rails with different directions and supports a flanged wheel of a rail carriage capable of traveling on the rail, and can turn horizontally with respect to the floor surface when the wheel is turned. And
A base fixed to the floor;
A support portion which is provided so as to be horizontally rotatable with respect to the base portion and can support a tread of a flanged wheel of the rail carriage;
Comprising
The upper part of the support part is formed into a rotating body shape coaxial with the horizontal rotation axis,
A wheel turntable for a rail carriage, wherein a passing space allowing passage of a flange portion of the wheel is provided between an upper portion of the support portion and an end portion of the rail on the entire circumference of the support portion. The wheel turntable of the rail carriage according to claim 1, further comprising a rolling portion that supports the outer periphery of the flange portion of the wheel and rolls the flange portion when the wheel of the rail cart moves in the passing space. The wheel turntable of the rail carriage according to claim 1 or 2, wherein the rolling part is provided integrally with the support part. The wheel turntable of the rail carriage according to any one of claims 1 to 3, further comprising braking means capable of braking horizontal rotation of the support portion.

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