JPH05199611A - Track for carrier - Google Patents

Abstract

(57) [Summary] [Structure] A groove-shaped smooth track surface 32 is formed on both sides of the upper surface of the track 31.
Is provided in the longitudinal direction, and a coil 33 as a stator of the linear motor is provided on the track 31 between the two track surfaces 32. Iron rails 34 are provided on both sides of the lower surface of the track 31 in the longitudinal direction, and a coil 35 as a stator of the linear motor is provided on the track 31 between the iron rails 34. [Effect] Both the wheeled guided vehicle and the magnetic levitation guided vehicle can be put on the same track. At the luggage transshipment station, luggage can be transshipped by simply lifting it up. You can easily change the transshipment station.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a track structure of a carrier used in a clean room or the like.

[0002]

2. Description of the Related Art In conventional vehicles of this type, magnetic levitation vehicles are used in places where high cleanliness is required, and wheeled vehicles are used in places where low cleanliness is required. For this reason, both the magnetic levitation carrier track and the wheel type carrier track are installed, and the transshipment of luggage between the magnetic levitation carrier and the wheeled carrier is performed by using a device as shown in FIGS. 5 and 6. Was used.

That is, in FIGS. 5 and 6, reference numeral 1 denotes a track for a wheeled guided vehicle, and a pair of left and right smooth groove-shaped smooth track surfaces 2 are formed on the upper surface thereof, and between the track surfaces 2. A coil 3 is provided as a stator of the linear motor. Reference numeral 4 denotes a wheeled transport vehicle. Wheels 5 mounted on the track surface 2 are provided on both front and rear sides thereof, and a reaction plate 6 as a mover of a linear motor is fixed to the center of the lower surface.

Reference numeral 11 is a track for a magnetic levitation carrier, and iron rails 12 are fixed in the longitudinal direction on both sides of the lower surface as ferromagnetic materials, and a coil 13 as a stator of a linear motor is fixed between both rails 12. I am doing it. Reference numeral 14 denotes a magnetic levitation transportation vehicle, on the upper side of which a center of a pair of front and rear beams 15 is swingably mounted by pins 16, and levitation magnets 17 facing the iron rails 12 are provided on the upper ends of the respective beams 15. Is fixed.

A reaction plate 19 facing the coil 13 is fixed on a bracket 18 at the center of the upper side of the carrier vehicle 14. Further, the lower end of the support frame 20 is fixed to one side of the transport vehicle 14, and the loading platform 21 that covers the track 11 is provided at the upper end thereof. Reference numeral 22 is a load transshipment robot provided at the transshipment station, which is a swivel base 23 provided between the orbits 1 and 11 arranged close to each other, and lifting means 2 such as a hydraulic cylinder provided on the swivel base 23.
It comprises a revolving arm 25 which moves up and down by means of 4, and a load holding means 26 at its tip.

In the case of the above-mentioned conventional example, as shown in FIGS. 5 and 6, the baggage 27 placed on the wheeled carrier 4 is gripped by the gripping means 26 of the robot 22 and is shown together with the arm 25 in the direction of arrow a in FIG. After lifting, the arm 25 is rotated 180 ° to move the load 27 onto the loading platform 21 of the magnetic levitation transport vehicle 14. Then, as shown by arrow b, the gripping means 26 is lowered to place the luggage 27 on the loading platform 21, the gripping means 26 is opened, and the luggage 27 is released. Further, the transshipment of the luggage 27 from the magnetic levitation transport vehicle 14 to the wheeled transport vehicle 4 is performed in the reverse operation.

[0007]

In the case of the above-mentioned prior art, the track 1 for the wheeled carrier vehicle and the track 1 for the magnetic levitation carrier vehicle.
It is necessary to install both of them, and in the transshipment station of the luggage, both trajectories 1 and 11 are installed close to each other, and the luggage 27 is gripped and lifted, then swung, and then descended. It requires an expensive baggage transshipment robot 22 which has a very complex movement of separating.

When changing the transshipment station to change the cleanliness, it is necessary to change the positions of the trajectories 1 and 11 and the position of the robot 22, which is extremely troublesome. It was

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a track in which the cargo can be easily reloaded and the luggage transfer station can be easily changed.

[0010]

In order to solve the above problems, the present invention lays a ferromagnetic material for a magnetic levitation carrier on the lower surface of the track in at least a part of the track of the carrier. The upper surface of the track is provided with a smooth track surface for running wheels of a wheeled carrier.

[0011]

Since the present invention has the above-described structure, when the wheeled carrier that has moved with wheels mounted on the smooth track surface on the upper side of the track comes to the transshipment station and is stopped, the load lifting means above it is guided by the carrier. Grab the luggage above and lift.

[0012] When the wheeled guided vehicle whose load has been lifted moves from below the load, the magnetic levitation carrier that has been waiting moves to just below the lifted load, and then the lifting means descends to move the load. Place it on the loading platform of the magnetic levitation carrier, release the grip, and move it to a position that does not interfere with the transportation. After that, the magnetic levitation vehicle travels to the desired location.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiment shown in FIGS.
Is a track, and a pair of left and right smooth groove-like smooth track surfaces 32 are formed on the upper part thereof, and a coil 33 as a stator of the linear motor is provided. Further, iron rails 34 as ferromagnetic materials are fixed in the longitudinal direction on both sides of the lower surface of the track 31, and coils 35 as stators of the linear motor are provided between the rails 34.

Reference numeral 36 in FIG. 1 denotes a baggage transshipment robot provided at the transshipment station, which is a lifting means 3 such as a hydraulic cylinder.
It has a baggage holding means 38 that moves up and down by 7. The wheeled carrier 4 and the magnetic levitation carrier 14 are shown in FIGS.
Since it is the same as the conventional example, the same reference numerals are given.

In the above embodiment, the wheel 5 is attached to the raceway surface 32.
When some sensor detects that the luggage 27 placed on the wheeled transport vehicle 4 traveling on the carriage comes to a position right below the luggage holding means 38 together with the transport vehicle 4 and stops, the lifting means 37 is moved.
And the gripping means 38, which was in the raised position, descends, grips the luggage 27 and slightly lifts it. As described above, the gripping means 38 lifts the load 27, and the load 27 is transferred to the transport vehicle 4.
Under the condition of being separated from, the transport vehicle 4 returns from below the grip means 38 to a predetermined position.

Next, when some sensor detects that the magnetic levitation transport vehicle 14 on which nothing is placed on the loading platform 21 travels just below the grip means 38 and is stopped, the lifting means 3 is moved.
7 operates, the gripping means 38 is lowered, and the luggage 27 is placed on the loading platform 21. Then, the gripping means 38 releases the grip of the baggage 27 and rises to separate from the baggage 27.

After that, the carrier 14 carrying the luggage 27 travels to a desired place.

[0018]

[Effect] As is apparent from the above-described configuration and operation, the present invention allows a wheeled guided vehicle and a magnetically levitated guided vehicle to travel on the same track, so that the luggage can be grabbed at a cargo transshipment station. Then, with a slight lifting, the cargo can be transferred between the wheeled carrier and the magnetic levitation carrier.

Therefore, the transshipment robot need only be moved up and down within a certain range, so that it is extremely simple.

Further, in the track of the present invention, since the transshipment can be performed at any position by simply changing the position of the transshipment robot, the entry sections of the wheeled guided vehicle and the magnetic levitation guided vehicle are changed due to a change in cleanliness. Even if it becomes, there is no need to lay the track again, and there is an effect that flexible operation is possible.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional front view of a track and a wheeled carrier according to an embodiment.

FIG. 2 is a side view of the above.

FIG. 3 is a vertical sectional front view of a track and a magnetic levitation carrier according to the embodiment.

FIG. 4 is a side view of the above.

FIG. 5 is a vertical sectional front view of a conventional example.

FIG. 6 is a plan view of the above.

[Explanation of symbols]

 4 wheel type transfer vehicle 5 wheel 6 reaction plate 14 magnetic levitation transfer vehicle 19 reaction plate 31 track 32 smooth track surface 33 coil 34 iron rail 35 coil 36 baggage transfer robot

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location B65G 54/02 9245-3F E01B 25/00 Z 7322-2D

Claims (1)

[Claims] 1. A ferromagnetic material for a magnetic levitation carrier is laid on the lower surface of the track in at least a part of the track of the carrier, and the upper surface of the track is used for running wheels of a wheel carrier. The track of a carrier with a smooth track surface.