JPH0287904A - Carrying facility utilizing linear motor - Google Patents

Abstract

PURPOSE:To simplify the construction of carrying facility by providing thrust in the advancing direction and lateral position regulating force simultaneously only through a pair of right and left primary coils thereby eliminating a guide rail and the like for regulating the lateral position. CONSTITUTION:A pair of right and left primary coils C are arranged to apply thrust obliquely to the advancing direction of a moving body A. When the coils C are driven to produce thrust of same magnitude in the advancing direction of the moving body A, they apply thrusts having same direction as the advancing direction of the moving body A and thrusts having reverse direction in the lateral direction onto a pair of secondary conductors D arranged at the moving body side. By such arrangement, the moving body A advances along the longitudinal direction of a carrying path with the position thereof being restricted to the intermediate section of the primary coils C where the thrusts are balanced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a transportation facility using a linear motor in which a primary coil is provided on the ground side and a secondary conductor is provided on the moving body side.

[Conventional technology]

In the above-mentioned type of conveyance equipment using the IJ near motor, it is necessary to regulate the position of the moving body in the width direction with respect to the moving route so that the moving body does not deviate from the set moving route.

Therefore, in the past, for example, a guide rail or the like was attached to the ground side along the moving route of the movable body, and the movable body was moved along the guide rail in its longitudinal direction.

[Problem to be solved by the invention]

In the conventional configuration, it is necessary to install a guide rail on the ground side.
Because of this, there was a disadvantage that the equipment configuration was complicated and expensive.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to allow a moving object to move along a set route without providing a means for regulating the movement route of the moving object such as a guide rail. The goal is to make it possible.

[Means to solve the problem]

The conveyance equipment using the IJ near motor according to the present invention has a primary coil provided on the ground side and a secondary conductor provided on the moving body side, and its characteristic configuration is as follows.

That is, the primary coil has a relationship between the secondary conductor and the secondary conductor.
While simultaneously applying thrusts in the same direction in the moving direction of the moving body, and simultaneously applying thrusts in opposite directions in the width direction of the moving body, and the thrusts in the opposite directions are in the left and right directions. In order to act as a restoring force against displacement, a pair of left and right sides are provided at intervals in the width direction of the movable body.

[For production]

Applying thrusts in opposite directions in the width direction of the moving body to the secondary conductor on the moving body side, such that the thrust forces in the opposite directions act as a restoring force against deviation in the left and right direction, and Since it applies thrust in the same direction as the moving direction,
The movable body moves along between the left and right pair of primary coils, with its position in the width direction being restricted to a location where thrust forces in opposite directions are balanced.

〔Effect of the invention〕

Therefore, with just a pair of left and right primary coils, it is possible to simultaneously apply a propulsive force in the direction of movement and a force to restrict the position in the width direction, so that the moving object does not deviate from the set movement path, unlike conventional methods. There is no need to provide a guide rail or the like to regulate the position in the width direction.

As a result, it has become possible to simplify the equipment configuration.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in Figure 1, bottle feeding equipment using linear motors is
A moving body (A) for conveying articles is reciprocated along a linear conveyance path from one end side to the other end to convey various articles.

As shown in FIGS. 1 and 2, the mobile body (A) is
A pair of free-swivel left and right running wheels (1) on each of the front and rear of the vehicle body.
It is constructed as a so-called pallet-shaped cart equipped with.

Then, the movable body (A) is attached to the lower side of the movable body (A).
) A pair of left and right secondary conductors (D) having substantially the same length as the length of the secondary conductors (D) are provided so as to be spaced apart from each other in the width direction of the vehicle body.

On the ground side, there is a pair of left and right primary coils (C).
The left and right pair of secondary conductors (D) are spaced apart in the width direction of the movable body (A) so as to simultaneously apply a thrust from an oblique direction with respect to the traveling direction of the movable body (A). They are attached so that they are spaced apart and are arranged in a substantially V-shape when viewed from above.

To explain, the pair of left and right primary coils (C) are:
Since it is arranged so as to apply a thrust from an oblique direction with respect to the moving direction of the moving body (A), the same thrust is generated in the same direction with respect to the moving direction of the moving body (A). When driven, a pair of left and right secondary conductors (D) on the moving body side
While simultaneously applying thrust in the same direction as the moving direction of the moving body (A>) to each of the moving bodies (A>),
In the width direction of A), thrust forces in opposite directions are simultaneously applied.

As a result, the movable body (A) is moved by the thrust force in the opposite direction in the width direction of the movable body (A), and the pair of left and right primary coils (C
) between the pair of left and right primary coils (C) along the longitudinal direction of the conveyance path, while being positioned at a point midway between the pair of left and right primary coils (C) where the thrust generated in the width direction is balanced. The process will proceed accordingly.

However, the movable body (A) is connected to the pair of left and right primary coils (
In order to be able to provide thrust even if the primary coils (C) are deviated left and right from the center of the left and right primary coils (C),
In this case, the movable body (A) is connected to the pair of left and right primary coils ((
In the proper state where the ends are located at the center between the left and right secondary conductors ([]
) so that it protrudes outside.

In order to generate a restoring force against deviation from the proper state in the left and right direction, the movable body (A)
Even in the state where the pair of left and right secondary conductors (D) are located in the proper state, the inner end portions in the width direction of the pair of left and right secondary conductors (D) are positioned further inward than the inner end portions of the primary coil (C). It is placed in

In addition, in order to be able to continuously apply thrust to the moving body (8), the primary coil (C)
A plurality of sets are attached, with left and right pairs being positioned at intervals along the longitudinal direction of the conveyance path of the movable body (A).

At one end of the conveyance path, the pair of left and right primary coils (C) applies a position regulating force from both left and right sides of the movable body (A) toward the center in the width direction, and
On the other hand, at the other end of the conveyance path, the left and right pair of primary coils (C) are arranged so as to apply a thrust for accelerating start toward the other end of the moving body (A). The V-shaped arrangement in plan view is configured so as to apply a position regulating force toward the center in the width direction, and also to apply a thrust for deceleration and stopping in the direction opposite to the moving direction of the moving body (A). , so as to be symmetrical on the left and right sides from approximately the center of the conveyance path.

By the way, the secondary conductor (D) may be formed into a single sheet of secondary conductor (D) without being divided into left and right parts. however,
In order to ensure that the thrust generated by the pair of left and right primary coils (C) is applied simultaneously to the left and right sides, the width thereof is adjusted to the interval in the width direction of the pair of left and right primary coils (C).

[Another example]

In the above embodiment, the thrust force for regulating the position in the width direction by the primary coil (C) is applied to the moving body (A) from both left and right sides toward the center in the width direction. For example, as shown in FIG. 3, it may be reversed so that it goes from the center in the width direction to the outside.

Further, in the above embodiment, even if the position of the moving body (A) in the width direction deviates from the proper position to the left or right, the secondary conductor (
D) The movable body (A) positions the left and right pair of primary coils (C) at the center between the left and right pair of primary coils (C) in order to be able to apply thrust to the vehicle. In the proper state, the end portions are arranged so as to protrude outside the pair of left and right secondary conductors (D) on the movable body side. As shown in the figure, the primary coil (C
) may not protrude outside the width of the secondary conductor (D).

However, in order to generate a restoring force against displacement in the width direction, when the position of the moving body (A) in the width direction is in the appropriate state, the primary coil (C
) is arranged so as to protrude inside the secondary conductor (D).

In addition, in the above embodiment, the moving body (8) is moved by the running wheels (1), but the specific configuration of the moving body (A) can be changed in various ways, such as being configured as a floating type. can.

Further, the present invention can also be applied to the case where the moving path of the moving body (A) is gently curved.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

The drawings show an embodiment of the conveyance equipment using a linear motor according to the present invention, and FIG. 1 is a schematic plan view showing the positional relationship between the primary coil and the secondary conductor, FIG. 2 is a front view of the same, and FIG. 3 is a separate diagram. FIG. 4 is a schematic plan view showing the positional relationship between the primary coil and the secondary conductor in the embodiment, and FIG. 4 is a front view thereof. (A)...Moving body, (C)...Primary coil, (D)...Secondary conductor.

Claims (1)

[Claims] A conveyance facility using a linear motor in which a primary coil (C) is provided on the ground side and a secondary conductor (D) is provided on the moving body (A) side, the primary coil (C) is connected to the While simultaneously applying a thrust in the same direction to the secondary conductor (D) in the traveling direction of the moving body (A), thrusts in mutually opposite directions in the width direction of the moving body (A). The movable body (
A) Conveyance equipment using linear motors, in which a pair of left and right motors are provided spaced apart in the width direction.