JPS6210081B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a conveyance device, and particularly to a conveyance device in which a cart is driven by a linear motor.

Conventional technology In conventional linear motor type conveyance equipment, a large number of linear motor coils are installed at required intervals along the rail so that the cart can receive thrust and travel no matter where it is on the rail. There is. Therefore, this method has the drawback that the number of motor coils to be installed is extremely large, which increases equipment costs.

For this purpose, the linear motor coils are arranged at a distance from the rail, and a reaction plate is attached to the bogie. When the bogie is placed oppositely on the linear motor coil, it accelerates and moves to the next linear motor coil by coasting. A method for migrating has also been proposed (for example, Japanese Patent Laid-Open No. 49-21809).

Problems to be Solved by the Invention However, when using this system, there are problems such as the bogie does not necessarily stop on the linear motor coil when thrust is lost due to power outage or other reasons, and restarting is difficult.

In view of this, an object of the present invention is to ensure restarting even if the system is stopped due to the above-mentioned power outage or the like.

Means for Solving the Problems The present invention for achieving the above object will be explained using FIGS. 1 to 3 corresponding to embodiments. The transport device includes a rail 1 and a transport cart 3 that runs on the rail 1. The rail 1 is provided in a loop shape and is raised and lowered at appropriate intervals over its entire length, and a linear motor coil 2 is provided below the rail at the position of each raised and lowered part 1a, and a reaction plate 4 is installed on the underside of the transport vehicle 3. do. The slope of the above-mentioned undulations allows the transport vehicle to move over the top of the undulations by the operation of the linear motor, and when the transport vehicle loses its propulsion force during a power outage, it is able to overcome the running resistance and due to its own weight. The slope is such that it moves to the lower part and stops.

Function When driving the transport vehicle 3, the transport vehicle 3 receives a propulsive force from the reaction plate by energizing the linear motor coil, and this propulsive force allows it to overcome the top of the uphill slope of the rail, and on the downhill slope, it overcomes its own weight and the above. Self-propelled by the inertia of thrust.

When the propulsion force is lost due to a power outage, etc., the transport vehicle moves to a lower undulating area due to its own weight and stops. Therefore, when restarting, the linear motor coil 2 is energized to ensure startup.

Embodiment In the figure, reference numeral 1 denotes a rail disposed along the conveyance line. This rail 1 is provided in an endless or loop shape, and is undulated at appropriate intervals over its entire length, but the undulation is a gentle slope. shall be. Linear motor coils 2 are arranged below the rails at the positions of each undulating low part 1a of the rail 1, and the thrust of the linear motors and the inclination angle of the rails are controlled so that the conveyance cart 3 running on the rails is affected by the running resistance. The angle between the downward slope and the upward slope shall be defined as a slope that allows self-propulsion, and a slope that is sufficient to climb up to the top of the undulating rail using the propulsive force of the linear motor. do not necessarily have to match. In addition, a reaction plate 4 is installed on the lower surface of the carrier 3 that runs on the rails, and when the carrier runs along the rail 1 with wheels 5, a linear motor coil applies a propulsive force to the carrier. Do it like this.

In the apparatus configured as described above, when a conveyed object is placed on the trolley 3 from the supply line A and the linear motor is driven, the trolley is propelled by the reaction plate by the linear motor coil and moves. do. The propulsive force of the linear motor is applied so that the bogie 3 crosses the top of the uphill slope of the rail, and on the downhill slope, the bogie moves by itself due to its own weight and the inertia of the thrust given on the uphill slope. Due to the undulations of the rails, linear motor coils are placed at appropriate intervals to allow the carriage to run smoothly. When it approaches the target delivery line B1, B2, . When the conveyance is completed at this position, the linear motor coil is driven again to transport the cart to the supply line A in the above-described manner.

It should be noted that the loading or unloading of the conveyed object onto or from the carriage may be carried out either by stopping the carriage reliably or by moving the carriage.

According to the present invention, the rails of the conveyance line are continuous at appropriate intervals and have an undulating shape with a slope that allows the trolley to run on its own, and a linear motor coil is installed at the bottom of the rail, so that power outages occur while the trolley is running. Even if the linear motor loses propulsion midway due to this, it will not be unable to restart as it does with horizontal rails, and the bogie will always run to the bottom of the rail and stop, making restarting easy. It has the advantage of requiring fewer linear motors and lower equipment costs.

[Brief explanation of the drawing]

FIG. 1 is a plan view, FIG. 2 is a front view, and FIG. 3 is an enlarged side view. 1...Rail, 2...Linear motor coil, 3
...Transportation truck, 4...Reaction plate, 5
...wheel, A...supply line, B1, B2...
...Export line.

Claims (1)

[Claims] 1. In a linear motor type conveyance means in which a linear motor coil is arranged on the fixed side and a reaction plate is provided on the conveyance vehicle side, the conveyance vehicle traveling rails are undulated at appropriate intervals, and at least one or more A linear motor coil is installed, and the slope of the above-mentioned ups and downs allows the bogie to climb over the top by operating the linear motor, and when the bogie loses propulsion such as during a power outage, it moves to a lower part due to its own weight and stops. A conveying device characterized by having a slope.