JP2000038284A - Travel rail for moving body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reliably prevent dew condensation on a wheel contact face with a heater having a small heating value by arranging the heater on the back side of the wheel contact face of a travel rail guiding and supporting a moving body. SOLUTION: Racks 4 for storing articles W are arranged face to face in parallel across the prescribed interval in an automatic warehouse 2, and a crane which is a moving body is guided, supported and traveled on a travel rail 1 installed between the racks 4. A heater 15 is arranged over the whole length in the longitudinal direction on the back side of the vehicle contact face 11 of the travel rail 1 kept in contact with the wheels of the carriage 31 of the crane 3. The travel rail 1 can be efficiently heated, dew condensation on the wheel contact face 11 is reliably prevented by the heater 15 having a small heating value, and power consumption can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveling rail for guiding and supporting a moving body.

[0002]

2. Description of the Related Art Conventionally, as a traveling rail for guiding and supporting a self-propelled moving body such as a stacker crane in an automatic warehouse, for example, a metal I-shaped steel is used. There was a possibility that dew condensation occurred on the contact surface, the wheels slipped, and the stop system became worse.

[0003]

For this reason, a method of attaching a heater to the side surface of the vertical wall of the I-section steel has been considered. However, the heater cannot be brought close to the wheel contact surface, and the wheel contact surface can be efficiently arranged. Heating could not be performed, and a heater that generated a large amount of heat had to be used.

[0004] It is an object of the present invention to provide a traveling rail which can surely prevent dew condensation on a wheel contact surface even if a heater having a small heat value is used.

[0005]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a traveling rail for guiding and supporting a moving body, wherein a heater is disposed behind a wheel contact surface. It is characterized by the following.

According to a second aspect of the present invention, in the first aspect of the present invention, a through hole is provided along the longitudinal direction of the traveling rail on the back side of the wheel contact surface, and a heater is disposed inside the through hole. It is characterized by having done.

According to a third aspect of the present invention, in the second aspect of the present invention, the through-hole is formed at a central portion in a width direction of the traveling rail.

Therefore, according to the first aspect of the present invention, the traveling rail can be efficiently heated by disposing the heater behind the wheel contact surface.

According to the second aspect of the present invention, in addition to the operation of the first aspect, a through-hole is provided on the back side of the wheel abutting surface along the longitudinal direction of the traveling rail. Regardless of the shape, the heater can be provided on the back side of the wheel contact surface. In addition, since the heater is arranged inside the through hole, the heater is arranged in a substantially closed space, so that the traveling rail can be heated more efficiently.

According to the third aspect of the invention, in addition to the effect of the second aspect, the through hole is formed at the center of the traveling rail in the width direction, so that the entire wheel contact surface is more efficiently heated. can do.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A traveling rail 1 according to the present embodiment will be described with reference to the drawings. The traveling rail 1 according to the present embodiment includes:
It is mainly used for guiding and supporting a crane (moving body) 3 used for the automatic warehouse 2 and the like. FIG. 1 is a plan view of a main part of an automatic warehouse 2 using the traveling rail 1 of the present embodiment. The automatic warehouse 2 has a rack 4 for storing articles W.
Are run parallel to each other at a predetermined interval, and a travel rail 1 is laid between them (travel path 5), and the crane 3 is guided and supported on the travel rail 1 to travel.

As shown in FIG. 2, the crane 3 has a self-propelled traveling vehicle 31 traveling on a traveling rail 1 laid on a floor 6 of a traveling path 5 and a crane 3 for transferring articles W. A lift 33 having a fork 32, and the lift 33 is mounted on the traveling carriage 31 by a drive source (not shown).
4 ascend and descend. Traveling trolley 31
Is equipped with wheels 35 for traveling on the traveling rail 1 and guide rollers 36 for preventing the wheels 35 from coming off. The fork 32 is configured to be extendable and retractable with respect to the elevating platform 33, and supports the bottom of the article W placed on the rack 4.

As shown in FIG. 3, the traveling rail 1 has a wheel contact surface 11 against which wheels 35 contact, a leg portion 12 for fixing the traveling rail 1, a wheel contact surface 11 and the leg portion 12. And a vertical wall 13 connecting the two. A guide roller contact surface 14 with which the guide roller 36 contacts is provided on a side portion of the wheel contact surface 11. The heater 1 is provided on the vertical wall 13.
A through hole 16 for arranging the rail 5 is provided on the back side of the wheel contact surface 11, and a mounting groove 17 for fixing the traveling rail 1 to the sleeper is provided in the leg portion 12. The through hole 16 is provided at the center in the width direction of the vertical wall 13 over the entire length in the longitudinal direction. The heater 15 is disposed inside the through hole 16 over the entire length in the longitudinal direction.

A mounting groove 17 is provided at the center in the width direction of the leg portion 12 and between the through hole 16 and the floor surface 6. The mounting groove 17 has a shape into which the bolt 21 can be inserted.

When the temperature of the wheel contact surface 11 of the traveling rail 1 is low and the humidity around the traveling rail 1 is high, dew condensation occurs. However, as in the present embodiment, a heater 15 is provided behind the wheel contact surface 11. By disposing, for example, even when the humidity around the traveling rail 1 increases and the temperature decreases, dew condensation can be prevented. In addition, even when a loading / unloading station is provided outside the warehouse such as a freezer warehouse and the traveling rail 1 is laid inside and outside the warehouse, the back side of the wheel contact surface of the traveling rail laid outside the warehouse. By providing a heater in the warehouse, it is possible to prevent the temperature of the wheel contact surface outside the warehouse from being lowered to the extent that dew condensation can occur. As described above, since dew condensation does not occur on the wheel contact surface 11, slippage due to dew condensation can be prevented, and deterioration of stopping accuracy of the crane 3 can be prevented.

In this embodiment, the through-hole 16 is provided near the back side of the wheel contact surface 11 and the heater 15 is disposed inside the through-hole 16, so that the heater 15 is disposed on the side surface of the conventional vertical wall 13. However, the distance between the heater 15 and the wheel contact surface 11 is reduced, and the amount of heat transmitted from the heater 15 to the wheel contact surface 11 increases. For this reason, the heater 15 can be changed to a heater having a small heat value. Further, since the heater 15 is disposed in the through hole 16 which is a substantially closed space, the heat of the heater 15 can be more efficiently transferred to the wheel contact surface 11.
Can be told.

Also, the heater 1 used in the present embodiment
By using the heater 5 having a function of maintaining the set temperature by the heating element itself, even if the heater 15 is always energized, a control device for controlling the temperature of the heater 15 is not required. it can.

When laying the running rail 1 on the floor 6, first, a lower member 22 which is a part of a sleeper is placed at a predetermined position on the floor 6.
Is fitted to the anchor bolt 23 erected on the floor surface 6,
It is fastened and fixed by a nut 24. The upper member 25 constituting the sleeper is further tightened and fixed with a nut 26 so that the height position can be changed. The upper member 25 has a groove in which the leg 12 of the running rail 1 fits. The bolt 21 has a quadrangular head in plan view for engaging with the mounting groove 17 and restricting rotation of the shaft. After the traveling rail 1 is fitted into the groove of the upper member 25, the bolt 21, whose head is engaged with the mounting groove 17 of the traveling rail 1, is tightened from the back side of the upper member 25 with a nut 27, so that the traveling rail 1 is It is configured to be fixed to the upper member 25.

The present invention may be embodied as follows. In the present embodiment, the heater 1 is inserted into the through hole 16.
5, but on the back side of the wheel contact surface 11,
Surface 18 between guide roller contact surface 14 and vertical wall 13
, A heater 15 may be arranged. Further, in the present embodiment, the traveling rail is a traveling rail that guides and supports the horizontal wheel 35. However, the traveling rail is formed as a traveling rail having a wheel contact surface formed vertically so that the rotating shaft guides and supports the vertical wheel. Is also good.

In the present embodiment, the traveling rail 1 is used to guide and support the crane 3 of the automatic warehouse 2.
It is not limited to the traveling rail 1 for the crane 3,
For example, it may be used for a traveling rail of a self-propelled bogie used for transporting the article W between the transfer station and another transfer station.

[0021]

Since the present invention is configured as described above, it has the following effects.

According to the first aspect of the present invention, by disposing the heater on the back side of the wheel contact surface, the traveling rail can be efficiently heated, and even if a heater having a small calorific value is used, the heater can be reliably heated. In addition, dew condensation on the wheel contact surface can be prevented. Power consumption can be reduced by reducing the amount of heat generated by the heater.

According to the invention described in claim 2, according to claim 1
In addition to the effects of the invention described in the above, by providing a through hole along the longitudinal direction of the traveling rail on the back side of the wheel abutting surface, the heater is reliably provided on the back side of the wheel abutting surface regardless of the shape of the traveling rail. Can be arranged. In addition, since the heater is disposed inside the through hole, the heater is disposed in a substantially closed space, so that the traveling rail can be heated more efficiently. Further, since the heater is hidden in the traveling rail, not only the breakage of the heater can be prevented, but also the appearance is improved.

According to the invention of claim 3, according to claim 2,
In addition to the effects of the invention described in (1), since the through hole is formed at the center in the width direction of the traveling rail, the entire wheel contact surface can be more efficiently heated.

[Brief description of the drawings]

FIG. 1 is a plan view of a main part of an automatic warehouse in which a traveling rail according to an embodiment is used.

FIG. 2 is a main part side view showing a traveling rail and a crane (moving body) of the present embodiment.

FIG. 3 is a sectional view of a main part showing a traveling rail according to the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Running rail 3 Crane (moving body) 11 Wheel contact surface 15 Heater

Claims (3)

[Claims] 1. A traveling rail for guiding and supporting a moving body, wherein a heater is disposed behind the wheel contact surface. 2. The moving body according to claim 1, wherein a through hole is provided along the longitudinal direction of the traveling rail on the back side of the wheel contact surface, and a heater is disposed inside the through hole. rail. 3. The traveling rail of a moving body according to claim 2, wherein the through hole is formed at a central portion in a width direction of the traveling rail.