JPH02162152A - Conveying device - Google Patents

Abstract

PURPOSE:To facilitate the switching of the running direction and the adjustment of speed by providing a wheel capable of variably setting the steering angle on a movable body, rotating the movable body in a tube with the rotary thrust by a linear motor and the steering angle of the wheel, and changing the steering angle of the wheel. CONSTITUTION:The outer wall 5 of a capsule 1 constitutes the secondary conductor of a linear motor 6, and the primary winding 7 of the linear motor 6 applying the thrust in the periphery tangent direction of a tube 4, i.e., rotary thrust, to the secondary conductor is wound on the outer periphery of the tube 4. Rotary shafts 12a and 13a of two crown gears 12 and 13 are connected via a steering handle 19, and the steering handle 19 is swayed to rotate the crown gears 12 and 13, thus the steering angle of a wheel 18 is changed. The running speed of the capsule 1 is increased as the steering angle of the wheel 18 is increased, the running speed is decreased as the steering angle is decreased, thus the switching of the running direction of the capsule 1 and the adjustment of the running speed can be performed while the magnitude and direction of the rotary thrust of the linear motor 6 are kept constant.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a conveying device in which a movable body capable of accommodating objects to be conveyed travels within a tube.

(Prior art) As a conventional example of this type of conveying device, for example,
As disclosed in Japanese Patent No. 10493, there is generally known a configuration in which an iJ moving object within a tube is pumped by fluid pressure, air pressure, or the like.

(Problem to be Solved by the Invention) However, in the configuration described above in which the movable body is pumped by fluid pressure or air pressure, a relatively large thrust must be generated in the same direction as the moving direction, and the movable body When switching the running direction, the direction of the fluid flow must be changed, and the running speed must also be controlled by adjusting the fluid pressure, making the running a++ control difficult.

(Object of the Invention) This invention was made to solve the above problems, and it is possible to easily adjust the traveling speed and change the traveling direction of the movable body traveling inside the tube, and it is relatively It is an object of the present invention to provide a transport device that can move a movable body with a small thrust.

(Means for Solving the Problems) The present invention is a conveyance device in which a movable body capable of accommodating objects to be conveyed travels within a tube, and the movable body has a steering angle that is in contact with the inner wall surface of the tube. At least a part of the exterior of the movable body is made of a secondary conductor of a linear motor, and a thrust force is applied to the outer periphery of the tube in the tangential direction of the circumference of the tube against the secondary conductor. A primary winding of a linear motor is provided, and the movable body is rotated within the tube and moved forward, backward, and stopped by the thrust of the linear motor and the steering angle set on the wheels.

(Operation) In this invention, when the direction (steering angle) of the wheels of the movable body is set perpendicular to the axis of the tube, the movable body remains at the same position within the tube while rotating under the thrust of the near motor. On the other hand, when the wheels change direction, they travel within the tube at a direction and speed that correspond to the steering angle.

(Embodiment) FIG. 1 is a sectional view showing the general structure of a conveying device which is an embodiment of the present invention. In the figure, a capsule 1 is a movable body having a storage space 3 for an object 2 to be transported, and has a sealed structure having a generally cylindrical shape. The tube 4 is a member that serves as a rail for the capsule 1 to run inside thereof, and has a cylindrical shape.

The outer wall 5 of the capsule 1 constitutes a secondary conductor of a linear motor 6, and a linear motor is provided on the outer peripheral surface of the tube 4 to provide a thrust in the tangential direction of the circumference of the tube 4, that is, a rotational thrust to the secondary conductor. Six primary windings 7 are provided. This one wraparound F++7 is arranged at regular intervals over the entire length of the tube 4.

In the capsule 1, crown gears 12.13 are installed in the front and rear spaces 10°11, which are separated from the central storage space 3 by a partition wall 8.9, and have their rotating shafts 12a, 1, respectively.
3a are aligned with the axis of the capsule 1, and each rotating shaft 12a, 13a is rotatably supported by bearings 14, 15 provided at the center of the partition walls 8, 9.

Each of the crown gears 12.13 is arranged at equal intervals (1
Three pinions 16 arranged radially at 20° intervals are meshed with each other, and the rotation shafts 16a of these pinions 16 penetrate the outer wall 5 of the capsule 1 and are exposed to the outside of the capsule 1. The tip of each rotating shaft 16a has an outline shape A-
A wheel boss 17 in the shape of a wheel is fixed, and this wheel boss 1
A wheel 18 is rotatably pivotally connected to 7.

FIG. 2 is a perspective view showing the configuration of one crown gear 12, the pinion 16 and wheels 18 that mesh with it, and the configuration of the other crown gear 13, the pinion 16 and wheels 18 that mesh with it. It's the same. The outer periphery of the wheel 18 is made of a member such as rubber that comes into elastic contact with the inner wall surface of the tube 4.

The rotating shafts 12a of the two crown gears 12 and 13 mentioned above
, 13a are connected via a generally mouth-shaped steering handle 19 as shown in FIG. Move crown gear A7
By rotating 12.13, the steering angle of the wheel 18 is changed.

A part of the outer wall 5 of the capsule 1 is made up of a lid 5a that opens and closes the opening of the accommodation space 3, and the lid 5a has a slit that allows the legs 19a of the steering handle 19 to project outside the capsule 1. 20 is formed. The slit 20 is formed in the circumferential direction of the capsule 1, as shown in a perspective view of the external appearance of the power prell 1 in FIG. 3, thereby allowing the steering handle 19 to swing.

A portion of the outer peripheral surface of the capsule 1 along the slit 20 is provided with "forward" and "stop" markings corresponding to each swing position of the steering handle 19.

Each operating state of "reverse" is displayed. In addition, wheel 1
The steering angles of No. 8 are all set to change uniformly in response to the rotation of the crown gears 12, 13.

Figure 4 (a), (b), Figure 5 (a), (b) tl
Figures 4(a) and 6(b) are explanatory diagrams showing the operation of the capsule 1 in the stopped state, forward state, and backward state, respectively, in the above-mentioned conveyance device, of which FIG. 4(a),
Figures 5(a) and 6(a) show plan views;
Figures (b), 5(b) and 6(b) show the front of the capsule 1 (Figure 4(a), 5(a) and 6(a)).
Fig. 3 shows a front view seen from the top side).

Next, the operation of the above-mentioned conveyance device will be explained with reference to FIGS. 4 to 6.

In this embodiment, the primary winding 7 of the linear motor 6 is
4 (a) with respect to the outer wall 5 of the capsule 1, which is a secondary conductor.
), (b) are set to apply a clockwise rotational thrust as shown by arrow A, one of the steering handles swings corresponding to "stop" as shown by the solid line in Figure 3. When set in position, each wheel 18 is connected to the tube 4
It is oriented perpendicularly to the center of the axis as shown in FIGS. 4(a) and 4(b). Therefore, although the capsule 1 rotates within the tube 4, it does not move forward or backward, but remains at the same position.

On the other hand, when the steering handle 19 is set at the swing position corresponding to "forward" as shown by the imaginary line in FIG.
rotates counterclockwise than in the previous case, and the pinion 16 rotates clockwise accordingly, so each wheel 18 rotates as shown in FIG.
), the steering angle is shown in (b). Therefore, the capsule 1 is given a clockwise rotational thrust by the linear motor 6.
moves forward within the tube 4 by making a turning motion corresponding to a right-handed screw movement, as shown by arrow B in FIGS. 5(a) and 5(b).

Conversely, when the steering wheel 19 is set at the rocking position corresponding to "reverse" shown in FIG. As the pinion 16 rotates counterclockwise, each wheel 18 has the steering angle shown in FIGS. 6(a) and 6(b). Therefore, the capsule 1, which is given a clockwise rotational thrust by the linear motor 6, is shown in FIG. 6(a).
As shown by arrow C in (b), it performs a turning motion corresponding to the movement of a left-handed screw and retreats inside the tube 4. That is,
In the above traveling operation, the steering angle of the wheels 18 plays a role equivalent to the pitch of the threads of the screw, and the larger the steering angle (the greater the swinging of the steering handle 19), the faster the capsule 1 travels. Therefore, the smaller the steering angle, the slower the traveling speed of the capsule 1 becomes. Therefore, the running direction of the capsule 1 can be switched and the running speed can be adjusted until the magnitude and direction of the rotational thrust of the linear motor 6 are kept constant. Therefore, it is very easy to control the traveling speed and direction.

Further, since the capsule 1 moves in a spiral manner, the thrust of the linear motor 6 is not required to be very large.

Furthermore, since the transportation 18 is not directly driven, the wheels 1
No driving force is applied to the wheels 8 and therefore wear of the wheels 18;
As a result, less dust is generated and clean transportation can be achieved.

In the above embodiment, the steering angle of the wheels 18 is variably set by swinging the steering handle 19 provided on the capsule 1. From the outside of the capsule 1, "Advance J," mAJ.

Commands such as "stop" may be given, and the rotation of the crown gears 12 and 13 may be controlled within the capsule 1 in response to these commands.

(Effects of the Invention) As described above, according to the conveying device of the present invention, wheels whose rudder angles can be variably set are provided on the movable VJ body, and the movable body is moved inside the tube by the rotational thrust of the linear motor and the rudder angle of the wheels. Since the vehicle is configured to perform turning operations, it is possible to easily change the running direction and adjust the running speed by simply changing the steering angle of the wheels, and the thrust of the linear motor is not required to be very large. effective.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing the general structure of a conveying device which is an embodiment of the present invention, Fig. 2 is a perspective view showing the structure of its crown gear, pinion, and wheels, and Fig. 3 shows the external appearance of its capsule. The perspective view, FIG. 4, FIG. 5, and FIG. 6 are explanatory diagrams showing the operations of the conveyance device in the "stop", "curve forward 1", and "backward 1" states, respectively. 1... Capsule , 3...Accommodation space, 4...
・Tube, 5... Secondary body, 6... Linear motor, 7... Primary conductor, 13.14... Crown gear, 16... Binion, 18... Wheel, 19...
・・Steering handle

Claims (1)

[Claims] (1) In a conveyance device in which a movable body capable of accommodating objects to be conveyed travels within a tube, the movable body is provided with wheels that are in contact with the inner wall surface of the tube and whose steering angle can be switched and set; , at least a part of the exterior of the movable body is constituted by a secondary conductor of a linear motor, and on the outer periphery of the pipe there is a primary winding of a linear motor that applies a thrust to the secondary conductor in the tangential direction of the circumference of the tube. 1. A conveyance device characterized in that a line is provided, and a movable body is rotated within a tube and moved forward, backward, and stopped by the thrust of a linear motor and the steering angle set on the wheels.