JP2006213462A - Driving type carrying chain - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a driving type carrying chain capable of being miniaturized and simplified, being used for both of a linear motor and a sprocket, and attaining miniaturization of the whole of a carrying device and space saving. <P>SOLUTION: Back iron to be a part of a secondary side movable element of a linear motor mechanism arranged on the carrying chain side is constituted integrally with a guide plate 140 of a guide unit to be a chain component. A reaction plate 160 constituting the remaining part of the secondary side movable element is fixed to a vertical outside surface of the guide plate 140. This driving type carrying chain is used for both of driving of the linear motor and driving of the sprocket. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a drive-type transfer chain used for an article transfer device, and more particularly to a hybrid drive-type transfer chain used for both linear motor drive and sprocket drive.

In recent years, linear motor-driven transport chains have been developed for use in article transport devices. For example, for use in a tenter that holds both side edges of a sheet-like substrate and continuously moves at a predetermined speed. There is a linear motor-driven transport chain composed of a tenter chain in which the movable parts of the linear motor are continuously attached at appropriate intervals (see, for example, Patent Document 1).
JP-A-6-57618 (first page, FIGS. 1-2)

  However, the conventional linear motor-driven transport chain is attached with the linear motor mover added to the chain body, which complicates the chain structure and cannot be used for both sprocket driving. Also, there is a problem that a transport apparatus incorporating a simple chain structure is increased in size as it becomes complicated, and an extra installation space is required.

  Accordingly, an object of the present invention is to solve the conventional problems, and it is possible to reduce the size and simplification of the transport chain, and to use both the linear motor and the sprocket. It is to provide a driven transport chain that can also achieve space.

  For this purpose, the drive-type transport chain according to the first aspect of the present invention has a secondary-side mover of the linear motor mechanism disposed on the transport chain side, and a part of the secondary-side mover as a chain component. It is an integrated one.

  The drive-type transport chain according to the second aspect of the present invention is configured as a hybrid drive-type transport chain used for both linear motor drive and sprocket drive in addition to the structure of the first aspect.

  Here, the drive-type transport chain of the present invention includes a basic structure configured of a travel guide body that travels on a chain circuit track of a transport line and a link body that connects the travel guide bodies to each other in the chain longitudinal direction. It can be incorporated into slat conveyors, scraper conveyors, bucket conveyors, pusher dog conveyors, and the like.

  A part of the secondary side mover is integrated as a back iron with either the travel guide body or the link body which is a chain component, and the remaining part of the secondary side mover is a travel guide body. Alternatively, it is provided by being fixed to at least a part of the link body.

Further, as the material for the secondary side mover in the present invention, a single conductor such as aluminum or copper, which is a nonmagnetic conductor, or a composite conductor combining such a single conductor and a ferromagnetic material such as iron is used. If this occurs, a linear motor mechanism called a “linear induction motor (LIM)” that induces eddy currents in the traveling magnetic field generated in the primary stator and generates thrust, and is magnetized when placed in a magnetic field. When a salient pole iron core such as iron is used as the magnetic body, “Linear reluctance motor (LRM)” that generates thrust on the secondary side by the attractive force of the traveling magnetic field generated on the primary side stator In addition, when a permanent magnet or a permanent magnet is used in combination with a ferromagnetic material such as iron, attraction generated between the primary side stator and the secondary field magnetic pole is used. Power By the repulsive force, is synchronized with the moving speed of the traveling magnetic field to move the secondary side, the linear motor mechanism referred to as "linear synchronous motor (LSM)".
In addition, when the secondary mover side of the linear motor mechanism referred to as the linear induction motor (LIM) or the linear synchronous motor (LSM) as described above is composed of a composite conductor, a magnetic path is formed in the ferromagnetic material. Therefore, a larger thrust can be obtained than when the secondary mover side is constituted by a single conductor.

  On the other hand, the primary side stator to be opposed to the secondary side mover of the linear motor mechanism in the present invention may be any one as long as it induces a thrust on the secondary side mover side by the moving magnetic field generated thereby. For example, a motor coil in which a coil (phase winding) is wound around a laminated silicon steel plate, or a coreless type motor coil in which a coil (phase winding) is molded with a nonmagnetic member is adopted. In particular, in the case of a coreless type motor coil, it may be arranged on both sides of the secondary side mover so that a magnetic path is formed between the coils.

  The drive-type transport chain of the present invention has a linear motor mechanism secondary side mover disposed on the transport chain side, and a part of the secondary side mover is integrated with a chain component to drive a linear motor and a sprocket. Compared to the case where the secondary side mover is added to the conventional chain component, the conveyance chain can be reduced in size and simplified. In particular, it is possible to realize a hybrid drive that uses both a linear motor and a sprocket, and it is also possible to achieve downsizing and space saving of the entire transport device.

  Hereinafter, based on FIG. 1 thru | or FIG. 3, the drive-type conveyance chain 100 which is 1st Example of this invention is demonstrated. FIG. 1 is a cross-sectional view of a slat conveyor incorporating a driving conveyance chain 100 according to the first embodiment, and FIG. 2 is a perspective view showing the driving conveyance chain 100 according to the first embodiment. 3 is a side view of the drive-type conveyance chain 100 shown in FIG.

First, the drive-type transport chain 100 of the present embodiment is incorporated in the lower part of the slat conveyor as shown in FIG. 1 so that it can run on the chain orbit of the transport line, as shown in FIG. A pair of link units 120 having a pair of link plates 120 press-fitted into both ends of the two bushings 110, and a pair of press-fitted into both ends of the two connecting pins 130 loosely fitted in the bushings 110 of the adjacent link units. A large number of guide units having guide plates 140 are alternately connected to bendable. Further, although not shown, the bushes 110 are fitted with rollers 150 that run by rolling on running rails provided along a conveying line. Has been. These structural members are basically the same as those of existing roller chains.
The pair of guide plates 140 and 140 arranged to face each other along the transport line are integrally formed with an attachment portion 141 that is formed by bending the vertical portions outwardly from each other, and the transported object W is attached to the attachment portion 141. A slat S for mounting is attached.

The drive-type conveyance chain 100 of the present embodiment is configured such that the secondary side movable element of the linear motor mechanism is arranged on the conveyance chain side, and a part of the secondary side movable element is configured by a guide unit that is a chain component. It has the most features.
That is, the reaction plate 160 constituting the secondary side mover of the linear motor mechanism is fixed to the vertical outer surfaces of the pair of guide plates 140 and 140 constituting both outer sides of the guide unit. Is arranged opposite to the primary side stator PS with a slight gap.

  The primary side stator PS of the linear motor is installed so as to sandwich the conveyance chain 100, and includes a comb-shaped iron core PS1 and a winding PS2 made of electromagnetic steel plates. Has been beaten by. This winding PS2 constitutes several coils (phase windings) that are spatially displaced at a certain pole interval, and a traveling magnetic field that moves with time is generated by passing an alternating current through each coil. It is like that.

On the other hand, the reaction plate 160 which is a part of the secondary side mover is made of a single conductor such as aluminum or copper which is a non-magnetic conductor, and when a traveling magnetic field is generated in the primary side stator PS described above, the reaction plate 160 An eddy current is induced on the surface of 160, and a linear motor mechanism called a “linear induction motor (LIM)” is formed on the reaction plate 160, which generates a thrust according to the Fleming law.
Since the guide plate 140 of the guide unit is formed of a ferromagnetic material from a steel plate and is a back iron that promotes the thrust of linear drive, the guide plate 140 of the guide unit and the reaction plate 160 are combined. A secondary side movable element made of a conductor is formed, and a large magnetic path is formed in the guide plate 140 of the guide unit made of a ferromagnetic material so that a large thrust can be obtained.

  Therefore, since the drive-type transport chain 100 of the present embodiment obtained in this way is driven in a distributed manner by the thrust generated in each reaction plate 160, the chain tension is reduced, and it is used for transporting long distances and heavy objects. Even if it is used, the chain life can be extended sufficiently, and when the chain tension is reduced, the plate thickness of the link plate 120 and the guide plate 140 is reduced. Since the back iron as a part is composed of the guide plate 140 of the guide unit that is a chain component, it is possible to achieve a reduction in size and simplification of the transport chain, and to apply control of the traveling speed to the primary side stator. The conveyance speed can be controlled smoothly because the current frequency is controlled.

  Moreover, in the drive-type transport chain 100 of this embodiment, the reaction plate 160 that constitutes the secondary side mover of the linear motor mechanism is fixed to the vertical outer surface of the guide plates 140 and 140 that constitute the guide unit. When a normal sprocket is installed instead of the primary stator PS on the linear motor mechanism placed on the transfer line, it can be driven by the sprocket, realizing a hybrid drive that uses both the linear motor and the sprocket. The effect is enormous, for example, it can function as a so-called hybrid drive type transport chain.

  In the drive-type transport chain 100 of this embodiment, the reaction plate 160 that is a part of the secondary side mover of the linear motor is fixed to the vertical side surfaces of the pair of guide plates 140, but this is necessary. Depending on the thrust or the like, the reaction plate 160 may be provided only on one side surface of the guide plate 140, or the reaction plate 160 may be provided by alternately distributing to the left and right side surfaces of the guide plate 140.

  Next, based on FIG. 4 thru | or FIG. 6, the drive-type conveyance chain 200 which is 2nd Example of this invention is demonstrated. FIG. 4 is a slat conveyor incorporating a drive-type transport chain 200 according to the second embodiment, in which (a) is a sectional view of the slat conveyor, and (b) is a- 5 is a side view taken along line a, FIG. 5 is a side view of the drive-type conveyance chain shown in FIG. 4, and FIG. 6 is a cross-sectional view taken along line 6-6 in FIG.

  The drive-type transport chain 200 according to the second embodiment of the present invention is a guide plate of the reaction plate 260 constituting the secondary side mover of the linear motor mechanism as compared with the drive-type transport chain 100 according to the first embodiment described above. Since only the attachment form to 240 is different and the basic chain structure is the same, the other configurations are understood by replacing the 100th generation code in the first embodiment with the 200th generation.

In view of this, the drive-type transport chain 200 of the present embodiment is configured such that the secondary side mover of the linear motor mechanism is disposed on the transport chain side, and a part of the secondary side mover is configured by a guide unit that is a chain component. It is the most characteristic.
That is, an attachment portion 241 is formed by extending the vertical portions of the pair of guide plates 240 and 240 constituting both outer sides of the guide unit outwardly, and a conveyed product is formed on the outer peripheral surface of the attachment portion 241. A slat S for mounting W is attached, and a reaction plate 260 that constitutes a secondary side mover of the linear motor mechanism is fixed to the inner peripheral back surface thereof, so that the primary side stator PS of the linear motor mechanism is slightly different from the primary side stator PS. They are placed opposite each other with a large gap.
The guide plates 240 and 24 themselves become back irons that promote the thrust of the linear drive, and the equipment configuration can be further downsized.

  In addition, the primary side stator PS is installed so as to sandwich the transport chain 200 as in the first embodiment, and is composed of a comb-shaped iron core PS1 made of an electromagnetic steel plate and a winding PS2, and a slot portion of the iron core PS1. The winding PS2 is wound several times. This winding PS2 constitutes several coils (phase windings) that are spatially displaced at a certain pole interval, and a traveling magnetic field that moves with time is generated by passing an alternating current through each coil. It is like that.

On the other hand, the reaction plate 260 which is a part of the secondary side mover is made of a single conductor such as aluminum or copper which is a non-magnetic conductor, and when a traveling magnetic field is generated in the primary side stator PS described above, the reaction plate 260 An eddy current is induced on the surface of 260, and a linear motor mechanism called a “linear induction motor (LIM)” is formed on the reaction plate 260 in which a thrust based on the Fleming law is generated.
Since the guide plate 240 of the guide unit is formed of a ferromagnetic material from a steel plate and is a back iron that promotes the thrust of linear drive, the guide plate 240 of the guide unit and the reaction plate 260 are combined. A secondary side movable element made of a conductor is formed, and a large magnetic path is formed in the guide plate 240 of the guide unit made of a ferromagnetic material so that a large thrust can be obtained.

  Therefore, the drive-type transport chain 200 of this embodiment can sufficiently extend the chain life even when used for transporting long distances and heavy objects, and can achieve downsizing and simplification of the transport chain. In addition, when a normal sprocket is arranged instead of the primary stator PS arranged on the conveyance line, a so-called hybrid drive type that realizes hybrid drive using both the linear motor and the sprocket. The effect is enormous, such as being able to function as a transport chain.

  The attachment portions 241 of the guide plates 240 and 240 in the second embodiment described above are provided so as to extend to the outer peripheral side of the guide plate 240, but the drive-type transport chain 300 of the third embodiment shown in FIG. As described above, the attachment portion 341 may be provided so as to extend toward the inner peripheral side with respect to the guide plate 340. Further, although not shown, the attachment portion 341 may be provided only on one of the pair of guide plates 340 and 340. .

  Next, based on FIG.8 and FIG.9, the drive-type conveyance chain 400 which is 4th Example of this invention is demonstrated. FIG. 8 is a side view of a drive-type transport chain 400 according to the fourth embodiment of the present invention, and FIG. 9 is a cross-sectional view taken along line 9-9 of FIG.

  The drive-type transport chain 400 according to the fourth embodiment of the present invention is different from the drive-type transport chain 100 according to the first embodiment described above in that the reaction plate 460 and the guide plate that constitute the secondary side mover of the linear motor mechanism. Since only the attachment form is different from that of 440 and the basic chain structure is the same, the other configurations will be understood by replacing the reference numerals of the 100th generation in the first embodiment with the 400th generation.

In view of this, the drive-type transport chain 400 of the present embodiment has an attachment portion 441 provided by extending the height of the guide plate 440 to the outer peripheral side of the link plate 420, and the reaction plate 460 is fixed to the attachment portion 441. Is the most characteristic.
The reaction plate 460, which is a part of the secondary side mover, is composed of a single conductor such as aluminum or copper, which is a nonmagnetic conductor, and proceeds to the primary side stator PS similar to the first embodiment described above. When a magnetic field is generated, an eddy current is induced on the surface of the reaction plate 460, and a linear motor mechanism called “linear induction motor (LIM)” is generated in the reaction plate 460, which generates a thrust according to the Fleming law.

Therefore, in the drive-type transport chain 400 according to the present embodiment, the height of the guide plate 440 serving as a back iron for promoting the linear drive thrust is extended to the outer peripheral side with respect to the link plate 420 to enlarge the attachment portion 441. Thus, a large reaction plate 460 can be installed regardless of the dimensions of the transport chain, so that the thrust of the transport chain can be increased, and the reaction plate 460 is provided on both sides by providing the attachment portion 441 vertically. Since it can be installed, a much larger thrust can be obtained.
In addition, although the drive-type conveyance chain 400 which is a present Example has provided the attachment part 441 in both of a pair of guide plates 440, you may provide only in one and the reaction plate 460 is only in one side of the attachment part 441. It is also possible to provide it.

  Therefore, the drive-type transport chain 400 of this embodiment can sufficiently extend the chain life even when used for transporting long distances and heavy objects, and can achieve downsizing and simplification of the transport chain. In addition, when a normal sprocket is arranged instead of the primary stator PS arranged on the conveyance line, a so-called hybrid drive type that realizes a hybrid drive using both the linear motor and the sprocket. The effect is enormous, such as being able to function as a transport chain.

  Next, based on FIG.10 and FIG.11, the drive-type conveyance chain 500 which is 5th Example of this invention is demonstrated. FIG. 10 is a side view of a drive-type transport chain 500 that is the fifth embodiment of the present invention, and FIG. 11 is a cross-sectional view taken along line 11-11 of FIG.

  The drive-type transport chain 500 according to the fifth embodiment of the present invention is different from the drive-type transport chain 100 according to the first embodiment described above in that the reaction plate 560 and the guide plate that constitute the secondary side mover of the linear motor mechanism. Since only the mounting form is different from that of 540 and the basic chain structure is the same, the other configurations will be understood by replacing the reference numerals of the 100th generation in the first embodiment with the 500th generation.

In view of this, the drive-type transport chain 500 of this embodiment has two attachment portions 541 that face each other by extending in the vertical direction with respect to one guide plate 540 by forming the guide plate 540 in a U-shaped cross section. The most characteristic feature is that the reaction plate 560 is fixed to the opposing surfaces of these attachment portions 541.
The reaction plate 560 is made of a single conductor such as aluminum or copper, which is a nonmagnetic conductor. When a traveling magnetic field is generated in the primary stator PS similar to the first embodiment, the reaction plate 560 is formed on the surface of the reaction plate 560. An eddy current is induced to form a linear motor mechanism called a “linear induction motor (LIM)” in which a reaction plate 560 generates a thrust according to the Fleming law.
In addition, although the drive-type conveyance chain 500 which is a present Example has provided the attachment part 541 in both of a pair of guide plates 540, you may provide only in one and the reaction plate 560 is provided only in the one side of the attachment part 541. It is also possible to provide it.

Therefore, the drive-type transport chain 500 according to the present embodiment is provided with two attachment portions 541 that extend in the vertical direction of one guide plate 540 and face each other, thereby providing one primary stator PS. The traveling magnetic field that is generated acts on the two reaction plates 560, and the two reaction plates 560 constitute a magnetic circuit by a guide plate having a U-shaped cross section, so that the leakage magnetic field can be reduced. The thrust of the transport chain can be increased.
In addition, the drive-type transport chain 500 of this embodiment can sufficiently extend the chain life even when used for transporting heavy objects over long distances, and can achieve downsizing and simplification of the transport chain. In addition, when a normal sprocket is arranged instead of the primary stator PS arranged on the conveyance line, a so-called hybrid drive type that realizes a hybrid drive using both the linear motor and the sprocket. The effect is enormous, such as being able to function as a transport chain.

  In the first to fifth embodiments as described above, a part of the secondary side mover of the linear motor mechanism used as the chain drive source is composed of a single conductor such as aluminum or copper which is a nonmagnetic conductor. The reaction plate 160, 260, 360, 460, 560 is used to generate a traveling magnetic field in the primary side stator PS, thereby inducing an eddy current on the surface of the reaction plate and generating a thrust. (LIM) ”is configured, but other embodiments may be used.

  For example, when a salient pole iron core such as iron is used as the magnetic body that is magnetized when placed in a magnetic field instead of the reaction plates 160, 260, 360, 460, 560 as the secondary side mover, It is possible to configure a linear motor mechanism called “linear reluctance motor (LRM)” that generates thrust on the secondary side by the attractive force of the traveling magnetic field generated in the side stator.

  Similarly, instead of the reaction plates 160, 260, 360, 460, and 560, the secondary side mover is a permanent magnet, and the interaction between the primary side stator and the secondary field magnetic pole causes the traveling magnetic field to change. It is also possible to achieve a constant speed conveyance by configuring a linear motor mechanism called “linear synchronous motor (LSM)” that moves the secondary side in synchronization with the moving speed.

  Further, in the first example to the fifth example described above, the embodiment incorporated in the slat conveyor is shown. However, other scraper conveyors, bucket conveyors, pusher dog conveyors, etc. may be incorporated. Can do.

1 is a cross-sectional view of a slat conveyor incorporating a drive-type transport chain 100 according to a first embodiment of the present invention. The top view of the drive-type conveyance chain shown in FIG. The side view of the drive-type conveyance chain shown in FIG. FIG. 2 is a slat conveyor incorporating a drive-type transport chain 100 according to a second embodiment of the present invention, in which (a) is a sectional view of the slat conveyor, and (b) is a cross-sectional view taken along line aa of (a). The side view in a line. The side view of the drive-type conveyance chain shown in FIG. Sectional drawing in the 6-6 line of FIG. Sectional drawing of the drive-type conveyance chain 300 which is 3rd Example of this invention. The side view of the drive-type conveyance chain 400 which is 4th Example of this invention. Sectional drawing in the 9-9 line | wire of FIG. The side view of the drive-type conveyance chain 500 which is 5th Example of this invention. Sectional drawing in the 11-11 line | wire of FIG.

Explanation of symbols

100, 200, 300, 400, 500 ... Drive-type conveying chain 110, 210, 310, 410, 510 ... Bush 120, 220, 320, 420, 520 ... Link plate 130, 230, 330, 430 , 530 ... Connecting pins 140, 240, 340, 440, 540 ... Guide plates 141, 241, 341, 441, 541 ... Attachment parts 150, 250, 350, 450, 550 ... Roller 160, 260, 360, 460, 560 ... Reaction plate PS ... Primary stator W ... Conveyed object S ... Slat

Claims (2)

  A drive-type conveyance chain, wherein a secondary side mover of a linear motor mechanism is disposed on the conveyance chain side, and a part of the secondary side mover is integrated with a chain component.   A drive-type conveyance chain, wherein the drive-type conveyance chain according to claim 1 is used for both linear motor drive and sprocket drive.

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