JPH11301468A - Container conveying system having rail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To run a system longitudinally and transversely by a linear motor without any problem by carrying a heavy load on a narrow running track, reducing energy consumption, and reducing number of components. SOLUTION: A rail 5 is arranged only outside of an intersection. A wheel 15 having a guide roller 36 is rotatable in the intersection. A magnet 33 is provided in a transportation vehicle 12 longitudinally and transversely. The magnet 33 moves the transportation vehicle 12 longitudinally and transversely with stators 8, 25 on a running track. A bar 27 having a moving vehicle 26 for rotating the wheel 15 having the horizontal guide roller 36 and a toggle lever 28 are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container transport system provided with rails on a running track, a linear motor, and rotatable wheels. The present invention can be applied to any place where a container equipped with a carrier guided by rails and driven by a linear motor is moved completely automatically. The present invention is suitable for vertical and horizontal transport on a given level ground, is environmentally friendly, does not require special maintenance, and requires a container to be moved quickly in vertical and horizontal directions. For example, it is suitable for transportation at a sorting work place of a port unloading facility, while it is suitable for transportation between a ship and a road vehicle or a rail vehicle, or transportation between these vehicles between similar vehicles.

[0002]

2. Description of the Related Art Devices for transporting containers on level ground are known. For example, German Patent Publication No. 4407999
The publication describes a traveling device for arbitrarily turning without using a switch. The traveling device is suitable for use in a parking building and, by means of a linear drive technology, can carry pallets loaded with cargo in various directions, vertically or horizontally, on a guiding profile. The disadvantage of this traveling device is that it requires a very large amount of energy to rotate the rotatable carrying rollers arranged at the corners of the pallet, so that these carrying rollers are very difficult to transport in containers. Not suitable for heavy loads. In addition, a wide running track is required to change the direction of the carrying roller in the reverse direction during running.

Further, German Patent Publication No. 1950387
In the device proposed in Japanese Patent Publication No. 8-208, for turning without the need for a switch, a rotatable carrier roller surrounded by a single guide element comprises a pallet for transporting containers. Are located in This device is also a device in which a pallet is driven by a linear motor by a rotating roller at all four corners to move the pallet, and the above-mentioned drawback has not been solved.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to reduce a heavy load on a narrow running track, reduce energy consumption and reduce the number of parts, and use a linear motor to traverse a vertical direction without hindrance. The object is to improve the transport system for containers so that they can travel in any direction.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention comprises a system of a running track having rails arranged at right angles to the lateral direction and parallel to each other and forming an intersection, wherein the rails are provided. A transport vehicle having wheels that are arranged only outside the intersection, that are rotatable around a rotating pin and that have horizontal guide rollers is provided, and the distance between the wheels matches the distance between the rails. That the wheels with are rotatable within the intersection, the magnets are provided on the transport vehicle in the vertical and horizontal directions, the magnets move the transport vehicle in the vertical and horizontal directions by the stator of the running track, horizontal And a toggle lever provided with a movable wheel for rotating a wheel provided with a guide roller.

The dependent claims describe advantageous embodiments of the invention. The solution according to the invention is a container transport system having a running track, a linear motor and rotatable wheels, wherein the running tracks are arranged so as to be parallel and intersecting with each other to form an intersection, with the intersection outside the intersection. It is proposed that the guide rail is arranged at the center of the running track.

The running track can be implemented as rails for guiding a container carrier with a running surface for the center running wheel, respectively. It is advantageous to place small running wheels between the larger running wheels. In this case, 3
All the running wheels can rotate independently of one another on one axis. On the other hand, the traveling wheels may be formed as double disc wheels and roll on the traveling surface.

The rotatable running rollers are surrounded by horizontal guide rollers, the spacing of the running rollers being equal to the spacing of the running tracks, the running rollers being rotatable at intersections by the surrounding guide rollers.
The horizontal guide roller abuts the guide rail when traveling on a straight path, so that only the central part of the travel roller contacts the guide rail, so that the free running of the side parts of the travel roller is ensured.

[0009] In the vertical and horizontal directions of the carrier, stators are arranged on the sides of the running track. The stator interacts with magnets that are arranged longitudinally and laterally of the vehicle to provide for advancing the vehicle longitudinally and laterally. Further, a stator acting on a rotating slider provided on the carrier is arranged parallel to the traveling track. By adjusting the position of the rotary slider in the transport vehicle via the bar and the rotary rod, the running rollers are each rotated by 90 ° at the intersection, and thus the direction of the transport vehicle can be changed.

In order for the transport system according to the invention to function reliably, it is sufficient to arrange guide rollers around three pairs of running rollers. When a vehicle driven by a linear motor reaches an intersection, a sensor provided to detect the entire predetermined range indicates this, and the vehicle is driven vertically and horizontally at the intersection by a stator operating with a small current. Will be retained. In this case, the stator operates the rotary slider. The bars, which come out of the pivot slider and have pivot rods, respectively operate two double disc wheel pairs via one pivot slider, the double disc wheel pairs rotating at the intersection. The transport vehicle is held at the intersection by the stator until the running roller rotates 90 °. Thereafter, the carrier is moved by the stator in a direction transverse to the longitudinal direction of the carrier to be separated from the intersection.

To ensure that the transport vehicle stops in the container transport system, all of the double disk wheels are rotated by 45 ° at the intersection to prevent the transport vehicle from running accidentally.

It is advantageous to provide a plurality of sensors for controlling the transport vehicle. For the container transport system according to the invention to function satisfactorily, no matter where the transport vehicle is, at least one sensor must be located between the guide rails below the transport vehicle. . By guiding the running wheels using the bar, all four running wheel pairs provided on the carrier can be rotated simultaneously and evenly, and there is no need to rerun the wheels. Further, the container transport system according to the present invention allows a container loaded with a very heavy load to travel on a narrow traveling track.

[0013] It is advantageous to implement the carrier as a double pallet and to provide a shock absorber, for example a spring, rubber, impact damper, or other elastic device on the carrier. Such a resilient device prevents the container from dropping abruptly when the container is unloaded by a crane, deforming the transport vehicle, and making the operation of the linear motor system unstable.

[0014] It is further advantageous that the running track is implemented in a unit system so that it can be supplemented and extended.

[0015]

Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 shows a cross section of the running rail structure, which has a previously prepared flat surface 1. Surface 1 is made of concrete, bitumen, or gravel. Steel sleepers 2 on face 1
The rail holding member 3 is laid in accordance with the load at intervals of and the fixing means 4 fixes the rail holding member 3. The rail 5 is inserted into the rail holding member 3 and held by the elastic element 6 and the screw 7. The linear motor stators 8 and 25 have the same configuration (using the rail holding member 3, the elastic element 6, and the screw 7) and are fixed to the steel sleeper 2. With such a configuration, the stators 8 and 25 can be moved steplessly in the longitudinal direction according to their magnetic relationship.

A dish-shaped member 11 is placed on the steel sleeper 2 in the intersection area 9 of the running track 10 and is fixed by screws 7. A rail end member 34 is provided on the dish-shaped member 11 in order to allow the rail 5 to travel to the dish-shaped member 11 without causing an impact.

A transport vehicle 12 for transporting the container 30 is mounted on the rail 5. The transport vehicle 12 has a deformable upper body 13 and a plurality of buffer elements 32 for magnets 33.
The vehicle body lower part 14 is provided with rotatable wheels 15. The wheels 15 are formed as double disk wheels 16, 17, which have a running surface 18 for the rail 5 and a running surface 19 for the dish-shaped part 11. On the other hand, the running surface 20 of the disk wheel 17 is provided only on the dish-shaped member 11. Rotatable wheels 15
The side guide of the wheel casing 21 and the rotating pin 22
Are supported by the crossbar 23. The crossbar 23 is frictionally connected to the lower part 14 of the vehicle body.

The movement of the rotatable wheel 15 is based on the U-shaped member 2.
The moving vehicle 2 moved by the stator 25 in 4
6 and further in the wheel casing 21 via a bar 27 and a toggle joint 28. Container width 29
By supporting the rotatable wheel 15 within the range of
The container 30 can be transferred using a commercially available spreader beam type container vehicle, for example, a straddle carrier 31.

FIG. 6 shows a modified embodiment, in which the wheels 15 run on the running track 10 and are guided on the rails 5 via horizontal guide rollers 36 at the center of the rails 5. The transport of the container 30 is performed as follows using the apparatus according to the present invention. First, the container 30 is placed on the upper part 13 of the vehicle 12 using a container bridge (not shown). The impact at the time of mounting is buffered by the plurality of buffer elements 32. When the stator 8 is energized, the carrier 1
2 runs. After the transport vehicle 12 reaches the plate-shaped forming member 11 and is braked, when the stator 25 is energized, the moving vehicle 26 is operated, and all the wheels 15 rotate through the bar. When the stator 8 for lateral traveling is energized, traveling is further performed. An end buffer 35 is formed to keep the running distance strict.

As shown in FIG. 7 to FIG.
The direction of the transport vehicle 12 is changed by the permanent magnet 33 and the movable vehicle 26 arranged in the longitudinal direction and the lateral direction of the transport vehicle 12. FIG. 7 shows a container transport system according to the invention with an intersection 9. In this case, only the second running track has rails 5. Since this rail 5 is only outside the intersection 9, it does not hinder the rotation of the wheels 15. A moving vehicle 26 for rotating the wheels 15 into the intersection 9
Is used. The moving vehicle 26 transmits the movement to the wheels 15 via the bar 27. The moving vehicle 26 is operated along the running track 10 via the stator 25 located between the running tracks 10. A guide element 37 is arranged at the intersection 9, and the guide element 37 guides a horizontal guide roller 36 during rotation.

When approaching the first intersection 9, the transport vehicle 12
Some of the stators 25 are energized along the traveling trajectory 10 for transporting. In order to detect the transport vehicle 12,
Sensors (Hall sensors) are provided for the longitudinal traveling and the lateral traveling, respectively. The sensors are arranged such that one sensor is always below the transport vehicle 12. With these sensors arranged so as to detect the entire predetermined range (flaechendeckend), the desired running of the transport vehicle 12 can be realized because the stator 25 is always turned on and off at the required time. When reaching the intersection 9, the corresponding stator 25 is further energized. The transport vehicle 12 stops at the intersection 9 so that all four wheels 15 can be rotated. The rotation of the wheels 15 is performed using a moving vehicle 26 via a bar 27. Vertical stator 25
In addition, the stator 25 in the horizontal direction is energized (FIG. 1).
0). The stator 25 operates the moving vehicle 26 and thus rotates the wheels 15 at the intersection 9. Stator 25
Fixes the carrier 12 in this position to rotate the wheels 15. Wheel 1 to control parking at intersection 9
Advantageously, 5 is at a 45 ° position.

FIG. 8 shows that all stators 25 must be energized for movement as shown in FIG. After rotating the wheel pair 15 by 90 °, FIG.
The position of the wheel pair 15 shown in FIG. The energized stator 25 is shown in FIG.
Shown in Thereafter, the transport vehicle 12 can travel on the traveling track 10 in a direction transverse to the longitudinal direction. For this reason, the stator 25 provided laterally with respect to the transport vehicle 12
(Not shown).

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a traveling rail structure and a transport vehicle.

FIG. 2 is a partial cross-sectional side view of a rail structure shown together with wheels of a transport vehicle.

FIG. 3 is an isometric view of the lower part of the vehicle body, together with the rotation device, the crosspiece, and the wheel casing.

FIG. 4 is an isometric view of a carrier having an upper body portion and a lower body portion.

FIG. 5 is a plan view of a partial area of a traveling section including a vertical rail and a horizontal rail, a steel sleeper, a dish-shaped rotating member, and a cushioning element, and a transfer point including a carrier and a straddle carrier. .

FIG. 6 is a view showing two pairs of rotatable wheels provided with a pair of wheel guide rollers on a running track provided with guide rails.

FIG. 7 is a view showing a transport vehicle in a crossing area when wheels start to rotate.

FIG. 8 is a view showing a state in which a stator is energized in the carrier of FIG. 7;

FIG. 9 is a diagram in an intersection area of a transport vehicle in which a traveling wheel is rotated at an intersection.

FIG. 10 is a view showing a state in which a stator is energized in the carrier shown in FIG. 9;

[Explanation of symbols]

5 rails 8, 25 stator
9 intersection 10 running track 12 carrier
13 Upper body 14 Lower body 15 Wheels 16, 17 Double disc wheel 18,
19, 20 Running surface 22 Rotating pin 26 Moving vehicle
27 bar 28 toggle lever 32 cushioning element
33 permanent magnet 36 guide roller

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Walter Hefvel, Germany 97222 Rimper Weidleinsweg 9 (72) Inventor Edgar Hood, Germany 97225 Zellingen Rotterstrasse 7 (72) Inventor Otto Weiss Germany Day 97241 Upper Priichfeld Rinkstrasse 7

Claims (7)

[Claims] 1. A rail on a running track, a linear motor,
A container transport system comprising rotatable wheels, comprising: a track (1) having rails (5) arranged at right angles to the lateral direction and parallel to each other, forming an intersection (9);
0), wherein the rails (5) are arranged only outside the intersection (9), wheels (36) rotatable around the rotating pin (22) and provided with horizontal guide rollers (36). (15)
2), the distance between the wheels (15) corresponds to the distance between the rails (5), and the wheels (15) with the guide rollers (36) are rotatable within the intersection (9); A magnet (33) is provided on the transport vehicle (12) in the vertical and horizontal directions, and the magnet (33) moves the transport vehicle (12) in the vertical and horizontal directions by the stators (8, 25) of the traveling track (10). A bar (27) having a moving wheel (26) for rotating a wheel (15) having a horizontal guide roller (36) and a toggle lever (28) are provided; A container transport system. 2. The wheel (15) of the carrier (12) is formed as a double disc wheel (16, 17), and the running surface (18) of the double disc wheel (16, 17) runs on the rail (5). 2. Roller, characterized in that the other running surfaces (19, 20) roll on an intersection (9).
The container transport system according to 1. 3. A moving vehicle (26) parallel to the running track (10).
Container transport system according to claim 1 or 2, characterized in that a stator (25) is arranged for the container. 4. A horizontal guide roller (36) guided by a dish-shaped member (11) comprises three wheels (15, 16, 1).
4. Container transport system according to claim 1, wherein the container transport system is arranged only around (7). 5. The method according to claim 1, wherein each of the two double disc wheels (16, 17) is operated via one mobile wheel (26). Container transport system. 6. A plurality of sensors for controlling the stator (25) are provided between the traveling trajectory (10) so as to detect an entire predetermined range, and one of these sensors is always a sensor. The container transport system according to any one of claims 1 to 5, wherein the container transport system is arranged so as to be below (12). 7. A vehicle (12) comprising: an upper body (13);
7. The container transport system according to claim 1, further comprising a body lower part (14) provided with a buffer element (32). 8.