JP2010241557A - Roller conveyor device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roller conveyor device adopting a magnetic power transmission means, lowering wear, dust, contact noise and the like, facilitating assembling and maintenance, and preventing breakage and wear of a surface. <P>SOLUTION: In the roller conveyor device 100 in which a plurality of conveying shafts 110 are rotatably arranged in parallel and a drive shaft 120 is arranged orthogonal to respective conveying shafts 110 through magnetic power transmission means 130, the conveying shaft 110 is constructed of an intermediate conveying shaft supporting conveying rollers 112 and a drive end conveying shaft supported by a drive end bearing so as to be divided and joined with each other by a drive end joint. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a plurality of transport rollers constituting a transport surface of a transported object, a plurality of transport shafts arranged in parallel so as to be rotatably attached to the plurality of transport rollers, and a direction orthogonal to the plurality of transport shafts A drive shaft that drives the transport shaft, a power shaft that transmits rotation from the drive means to the drive shaft, a magnetic rotator provided on the drive shaft, and a magnetic rotator provided on each transport shaft, The present invention relates to a roller conveyor device having magnetic power transmission means for transmitting power in opposition to each other.

  Conventionally, in order to transport electronic component boards, liquid crystal panels, precision parts, etc. that are required to be handled in a clean environment in a roller conveyor device, wear, dust generation, contact noise, etc. are used as power transmission means between each axis. One having a magnetic power transmission means that can be reduced is known.

  In a known roller conveyor device, for example, as shown in FIG. 17, a plurality of conveyance shafts 510 are rotatably arranged in parallel, and a plurality of conveyance rollers (not shown) constituting a conveyance surface are respectively provided on the conveyance shafts 510. It is equipped and it is comprised so that it may rotate integrally and may convey a conveyed product.

A drive shaft 520 is provided in a direction orthogonal to the side of the transport shaft 510, and the drive shaft 520 drives the transport shaft 510 via the magnetic power transmission means 530.
The magnetic power transmission means 530 magnetically drives the driving magnetic rotator 521 provided on the drive shaft 520 and the driven magnetic rotator 511 provided on the transport shaft 510 in a non-contact manner through a space. Is configured to communicate.

  The driven magnetic rotator 511 side of the transport shaft 510 is rotatably supported by the driving end bearing 540 and has a position defined, and the driven magnetic rotator 511 in the magnetic power transmission means 530 and the driving shaft 511 are driven. A non-contact space with the magnetic rotating body 521 is secured (for example, see Patent Document 1).

JP 2002-329761 A (5th and 6th pages, FIG. 6)

  However, the known roller conveyor device 500 is provided with a driven magnetic rotating body 511 directly on the side end of the transport shaft 510, and transport during assembly and maintenance of the transport shaft 510 and the transport rollers attached to the transport shaft 510. When the shaft 510 is detached and attached, it is necessary to handle the driven magnetic rotator 511 integrally, so that the weight is heavy and the operation is not easy.

  Further, the attractive force between the magnetic poles of the driven magnetic rotator 511 and the driving magnetic rotator 521 is large, and if the magnetic poles are attracted to each other, the work becomes more difficult, and the driven magnetic rotator 511 and the driving magnetic rotator There is a problem that the rotating body 521 or the conveying shaft 510 and the driving side end bearing 540 come into contact with each other, and the magnetic pole or the bearing may be damaged, the magnet surface may be peeled off, rusted, or the magnet may be broken due to a collision. there were.

  The present invention solves the problems of the prior art as described above. That is, the object of the present invention is to reduce the wear, dust generation, contact noise, etc. by adopting magnetic power transmission means, and to assemble. Another object is to provide a roller conveyor device that facilitates maintenance and prevents damage and surface wear.

  The invention according to claim 1 includes a plurality of transport rollers that constitute a transport surface of a transported object, a plurality of transport shafts that are rotatably mounted in parallel with the plurality of transport rollers, and the plurality of transport rollers. Magnetic power transmission in which power is transmitted by a drive shaft provided in a direction orthogonal to the shaft to drive the conveyance shaft, a magnetic rotator provided on the drive shaft, and a magnetic rotator provided on each conveyance shaft facing each other. Means for transporting the intermediate roller, and the intermediate shaft for supporting the carrier roller and the drive-side end-portion shaft supported by the drive-side end bearing on the magnetic rotating body side. The shaft and the driving side end conveying shaft are configured to be split-coupled by the driving side end joint, thereby solving the above-described problem.

  According to the second aspect of the present invention, in addition to the configuration of the roller conveyor device according to the first aspect, the driving side end conveying shaft has a step portion that abuts the driving side end bearing in the axial direction. And the said subject is further solved by being comprised so that the axial direction force added to the said magnetic rotating body side may contact | abut to the said drive side edge part bearing, and may be received.

  In the invention according to claim 3, in addition to the configuration of the roller conveyor device according to claim 1 or 2, the driving side end conveying shaft is formed integrally with the driving side end joint. Therefore, the above-described problem is further solved.

  In the invention according to claim 4, in addition to the configuration of the roller conveyor device according to any one of claims 1 to 3, the driving side end conveyance shaft is formed of a nonmagnetic material. Therefore, the above-described problem is further solved.

  According to the fifth aspect of the present invention, in addition to the configuration of the roller conveyor device according to any one of the first to fourth aspects, the conveying shaft is opposite at the end opposite to the magnetic rotating body. The object further includes the opposite end conveyance shaft supported by the end bearing, and the intermediate conveyance shaft and the opposite end conveyance shaft are configured to be divided and coupled by the opposite end joint. To do.

  In addition to the configuration of the roller conveyor device according to claim 5, the invention according to claim 6 is characterized in that the opposite end conveyance shaft is formed integrally with the opposite end joint. Is a further solution.

  The roller conveyor device of the present invention includes a plurality of transport rollers constituting a transport surface of a transported object, a plurality of transport shafts arranged in parallel so as to be pivotally attached to the plurality of transport rollers, and the plurality of transport shafts A magnetic power transmission means for driving the conveying shaft provided in a direction orthogonal to the magnetic shaft, a magnetic rotating body provided on the driving shaft, and a magnetic rotating body provided on each conveying shaft facing each other to transmit power In addition to reducing wear, dust generation, contact noise, and the like, the following special effects can be achieved.

  In other words, the roller conveyor device according to the first aspect of the present invention has an intermediate transport shaft whose transport shaft supports the transport roller and a drive-side end transport shaft supported by the drive-side end bearing on the magnetic rotating body side. The intermediate conveying shaft and the driving side end conveying shaft can be divided and combined by the driving side end joint so that the driving side end conveying shaft is driven during assembly and maintenance of the conveying shaft and the conveying roller. Since only the intermediate conveying shaft can be attached and detached while being supported by the side end bearing, the weight is reduced and the operation is facilitated, and the driving side end conveying shaft supported by the driving side end bearing and There is no need to move the magnetic rotating body provided on the drive-side end conveying shaft, the magnetic poles and bearings are damaged by contact, the magnet surface is peeled off, rusted, or the magnet is cracked by collision. Can prevent Kill.

  In addition to the effect of the roller conveyor device according to the first aspect, the roller conveyor device according to the second aspect has a step portion in which the driving side end conveying shaft abuts the driving side end bearing in the axial direction. The axial force applied to the magnetic rotating body side is configured to abut on the driving side end bearing so as to receive the attractive force from the magnetic power transmission means on the driving side end conveying shaft and the driving side end. Since it is possible to eliminate the influence on the intermediate transport shaft and the driving side end joint by receiving with the partial bearings, it becomes easier to attach and detach the intermediate transport shaft during assembly and maintenance.

  In addition to the effect of the roller conveyor device according to the first or second aspect, the roller-side conveyor shaft of the invention according to the third aspect is formed integrally with the driving-side end joint. This simplifies the structure and facilitates assembly and maintenance.

  In addition to the effect of the roller conveyor device according to any one of claims 1 to 3, the driving-side end conveyance shaft is formed of a non-magnetic material. As a result, the influence of the attractive force received from the magnetic power transmission means can be further reduced, so that the attachment and detachment operations of the intermediate conveyance shaft during assembly and maintenance are further facilitated.

  In addition to the effect of the roller conveyor device according to any one of claims 1 to 4, the roller conveyor device of the invention according to claim 5 is opposite at the end opposite to the magnetic rotating body. It further has an opposite end conveyance shaft supported by the end bearing, and the intermediate conveyance shaft and the opposite end conveyance shaft are configured to be split-coupled by an opposite end joint, thereby assembling the conveyance shaft and the conveyance roller. During maintenance, only the intermediate conveyance shaft can be attached and detached while the opposite end conveyance shaft is supported by the opposite end bearing, which further reduces the weight and facilitates the operation.

  In addition to the effect of the roller conveyor device according to any one of claims 1 to 5, the opposite end conveyance shaft is formed integrally with the opposite end joint. This simplifies the structure and facilitates assembly and maintenance.

The perspective view of the roller conveyor apparatus which is one Example of this invention. The disassembled perspective view of the edge part of the conveyance axis | shaft of FIG. The perspective view at the time of the division | segmentation of the intermediate conveyance axis | shaft of FIG. 1, and a drive side edge part conveyance axis | shaft. The perspective view at the time of the coupling | bonding of the intermediate conveyance axis | shaft of FIG. 1, and a drive side edge part conveyance axis | shaft. The side view of FIG. Sectional drawing of FIG. The perspective view at the time of the division | segmentation of the conveyance part opposite to the intermediate conveyance axis | shaft of FIG. The perspective view at the time of the coupling | bonding of the intermediate conveyance axis | shaft of FIG. The side view of FIG. Sectional drawing of FIG. The disassembled perspective view of the edge part of the conveyance shaft of the other Example of FIG. The disassembled perspective view of the edge part of the conveyance shaft of the further another Example of FIG. The perspective view at the time of the coupling | bonding of FIG. Sectional drawing of FIG. Explanatory drawing of the magnetic pole arrangement | positioning of one Example of the magnetic type power transmission means of this invention. Explanatory drawing of the magnetic pole arrangement | positioning of the other Example of the magnetic type power transmission means of this invention. The perspective view of the edge part of the conveyance axis | shaft of the conventional roller conveyor apparatus.

  The roller conveyor device of the present invention includes a plurality of transport rollers constituting a transport surface of a transported object, a plurality of transport shafts arranged in parallel so as to be pivotally attached to the plurality of transport rollers, and the plurality of transport shafts A magnetic power transmission means for driving the conveying shaft provided in a direction orthogonal to the magnetic shaft, a magnetic rotating body provided on the driving shaft, and a magnetic rotating body provided on each conveying shaft facing each other to transmit power A conveyor shaft having an intermediate conveyance shaft that supports the conveyance roller and a driving-side end conveyance shaft that is supported by a drive-side end bearing on the magnetic rotating body side, and driving the intermediate conveyance shaft The side end transport shaft is configured to be split-coupled by the drive side end joint, reducing wear, dust generation, contact noise, etc., facilitating assembly and maintenance, and damaging the magnetic poles and bearings. The plating is peeled off and rusted or As long as it prevents the magnet is cracked, the specific embodiments thereof are may any be any one.

  In other words, the magnetic power transmission means used in the present invention may have any specific form as long as power transmission is performed between the orthogonal drive shaft and the transport shaft, and each of the drive side and the driven side is provided. The magnetic rotating body may have any shape of a disk, a cone, or a cylinder, and the arrangement of the magnetic poles of the magnetic rotating body may be any arrangement as long as it can effectively transmit the driving force.

  In particular, if a magnetic cylinder having magnetic poles alternately arranged on the cylindrical surface and a magnetic disk having magnetic poles alternately arranged on the disk surface are opposed to each other, it is possible to achieve a small and efficient power transmission. However, if the magnetic poles are arranged in a radial curve from the inner periphery toward the outer periphery, the torque fluctuation is small and noise and vibration are reduced, which is more preferable.

  The transport roller used in the present invention only needs to rotate integrally with the transport shaft, and may have any shape depending on the characteristics of the transported object. For example, it may be one cylindrical shape with respect to one transport shaft, or may be a cylindrical shape or a disk shape divided into a plurality of parts.

  In addition, as a specific material of the transport roller used in the present invention, any material may be used according to the characteristics of the transported object, and only the outer peripheral surface in contact with the transported object may be a material suitable for transport.

Below, the roller conveyor apparatus which is one Example of this invention is demonstrated based on drawing.
As shown in FIG. 1, a roller conveyor apparatus 100 according to an embodiment of the present invention has a plurality of transport shafts 110 arranged in parallel so as to be rotatable, and one end of each transport shaft 110 has a driven magnet. A rotating body 111 is provided.
Each of the transport shafts 110 is provided with a plurality of disc-shaped transport rollers 112 that constitute a transport surface so as to be rotatable integrally with the transport shaft 110.

On one end side of the plurality of transport shafts 110, a drive shaft 120 that is rotated by a drive device (not shown) orthogonal to the transport shaft 110 is provided. A plurality of driving magnetic rotators 121 for transmitting driving force are provided.
The driven magnetic rotator 111 and the driving magnetic rotator 121 constitute a magnetic power transmission means 130 and transmit a driving force to each conveyance shaft 110.

The driving magnetic rotator 121 is composed of a magnetic cylinder in which magnetic poles are alternately arranged on the cylindrical surface, and the driven magnetic rotator 111 is composed of a magnetic disk in which magnetic poles are alternately arranged on the disk surface.
Rotational transmission from a drive device (not shown) to the drive shaft 120 can further transmit power with less vibration and torque fluctuation through a magnetic coupling, magnetic power transmission means, and the like.

  As shown in FIGS. 2 to 6, the conveyance shaft 110 is rotatable to an intermediate conveyance shaft 113 that supports the conveyance roller 112 at the driving side end and a driving side end bearing 140 provided on the driving side end frame 150. The driving side end conveyance shaft 114 is supported by the driving side end joint shaft 160, and can be divided and coupled by the driving side end joint 160.

  The driving-side end conveying shaft 114 has a driven magnetic rotator 111 fixed to the end thereof, is rotatable on a driving-side end bearing 140 provided on the driving-side end frame 150, and a contact portion 115. Is in contact with the driving-side end bearing 140 and receives the force that the driven magnetic rotator 111 is attracted to the driving magnetic rotator 121, so that the driven magnetic rotator 111 and the driving magnetic rotator 121 Configured to maintain spacing.

Further, the driving side end conveyance shaft 114 reduces the influence of the magnetic force of the magnetic power transmission means 130 including the driven magnetic rotator 111 and the driving magnetic rotator 121 on the intermediate conveyance shaft 113 side. It is made of a nonmagnetic material.
The intermediate conveyance shaft 113 is formed in a hollow shape for axially attaching the conveyance roller 112 and reducing the weight.

  The drive side end joint 160 that couples the intermediate transport shaft 113 and the drive side end transport shaft 114 is a semi-cylindrical joint body 161 and two semi-cylindrical shapes that are half the length of the joint body 161 in the axial direction. The presser members 162 and 163 are firmly connected by tightening the fastening screw 164 with the joint main body 161 and the two presser members 162 and 163 sandwiching the intermediate transport shaft 113 and the drive side end transport shaft 114. The

With the above configuration, as shown in FIG. 3, only the driving side end conveyance shaft 114 is handled during assembly to constitute the magnetic power transmission means 130, and then the intermediate conveyance shaft 113 is assembled to the driving side end joint 160. Therefore, it is not necessary to handle the entire conveying shaft 110 with respect to the strong magnetic force of the magnetic power transmission means 130, and the operation becomes extremely easy.
Further, even during maintenance such as replacement of the transport roller 112, only the intermediate transport shaft 113 is removed from the drive side end joint 160 without disassembling the drive side end transport shaft 114 constituting the magnetic power transmission means 130. Work is extremely easy.

  Further, as shown in FIGS. 7 to 10, the conveying shaft 110 is an opposite end bearing provided on an end frame 180 opposite to the intermediate conveying shaft 113 that supports the conveying roller 112 at the end opposite to the driving side. It is divided | segmented into the opposite end part conveyance shaft 116 rotatably supported by 190, and it is comprised by the opposite end joint 170 so that division | segmentation coupling | bonding is possible.

  The opposite end joint 170 that couples the intermediate transport shaft 113 and the opposite end transport shaft 116 is a semi-cylindrical joint main body 171 and the axial direction of the joint main body 171 in the same manner as the drive side end joint 160 described above. It consists of two semi-cylindrical pressing members 172 and 173 having a half length, and a fastening screw 174 sandwiching the intermediate conveying shaft 113 and the opposite end conveying shaft 116 between the joint body 171 and the two pressing members 172 and 173. By tightening, it is firmly connected.

With the above configuration, as shown in FIG. 7, only the opposite end conveyance shaft 116 can be handled and assembled to the opposite end bearing 190 at the time of assembly, and then the intermediate conveyance shaft 113 can be assembled to the opposite end joint 170. The intermediate transport shaft 113 only needs to be coupled to the drive side end joint 160 and the opposite end joint 170 at both ends, and the operation becomes easier.
Further, even during maintenance such as replacement of the transport roller 112, only the intermediate transport shaft 113 can be removed from the drive side end joint 160 and the opposite end joint 170 without disassembling the opposite end transport shaft 116. In addition, the work becomes easier.

  Further, as shown in FIG. 11, the driving-side end conveyance shaft 214 and the driving-side end joint 260 may be integrated into a simple structure, and the opposite-end conveyance shaft and the opposite-end coupling may be combined. Similarly, it may be integrated.

Further, as shown in FIGS. 12 to 14, the drive side end joint 360 is composed of one cylindrical joint body 361 having a screw hole 363, and is intermediate between the drive side end transport shaft 314 having the step 315. The transport shaft 313 may be tightened from the periphery with a screw or the like, and the opposite end transport shaft and the opposite end joint may have the same structure.
Moreover, it is not limited to the said Example, The joint of what kind of structure may be sufficient.

  In the magnetic power transmission means 130 of the above embodiment, for example, as shown in FIGS. 15 and 16, the driving magnetic rotator 121 has a cylindrical shape, and the driven magnetic rotator 111 has a disk shape. Thus, the rotational axes of the driving magnetic rotator 121 and the driven magnetic rotator 111 are orthogonal to each other on the same plane.

  The opposing surfaces of the driving magnetic rotator 121 and the driven magnetic rotator 111 are arranged so that the magnetic poles are alternately switched by rotation, and the driving magnetic rotator 121 and the driven magnetic rotator 111 are opposed to each other. Rotation is transmitted by the attraction between the magnetic poles to be repelled and the repulsion between the adjacent magnetic poles facing each other. In the embodiment shown in FIG. 16, the number of magnetic poles arranged alternately is eight, but an appropriate number can be set according to the required torque and the quietness of rotation.

  In the example shown in FIG. 15, the magnetic poles of the driven magnetic rotator 111 are arranged in a radial curve from the inner periphery to the outer periphery, and the magnetic poles of the driving magnetic rotator 121 are inclined so as to face each other. Since the boundary line of the magnetic poles that are located at opposite positions during rotation continuously moves, the position where the attractive force and the repulsive force are generated is the axial direction of the cylinder of the driving magnetic rotating body 121, and the driven magnetic rotating body 111. The disc changes smoothly in the circumferential direction of the disc and can rotate with little rotational vibration and torque fluctuation.

  In the structure shown in FIG. 16, the magnetic poles of the driven magnetic rotator 111 are arranged in a fan shape, and the magnetic poles of the driving magnetic rotator 121 are arranged in a straight line so as to face the magnetic rotor, so that the structure becomes simple. Since the driving magnetic rotator 121 has a cylindrical shape and the driven magnetic rotator 111 has a disk shape, the peripheral speed of the magnetic pole is constant in the driving magnetic rotator 121, whereas the driven magnetic rotator 121 is Since the body 111 differs between the inner periphery and the outer periphery, even if it is a fan-like or linear arrangement, it slips and absorbs rotational vibrations and torque fluctuations and can rotate smoothly.

As shown in FIG. 15 and FIG. 16, the magnetic power transmission means is provided on the driving side and the magnetic cylinder alternately arranged with the magnetic poles on the cylindrical surface, and provided on the driven side alternately with the magnetic poles on the disk surface. By arranging the magnetic cylinder and the rotation axis of the magnetic cylinder so as to be orthogonal to each other on the same plane, the conveyance axis and the drive axis are orthogonal, and the magnetic cylinder is the magnetic disk of the magnetic disk. Since it does not protrude greatly from the space on the front surface, the entire magnetic power transmission device can be made compact, and power transmission with high efficiency and less vibration and torque fluctuation can be achieved, and the entire roller conveyor device can be made smaller.
Further, the magnetic power transmission means may have other shapes.

DESCRIPTION OF SYMBOLS 100, 500 ... Roller conveyor apparatus 110, 210, 510 ... Conveyance axis | shaft 111, 511 ... Driven magnetic rotating body 112, 212 ... Conveyance roller 113, 213, 313 ... Intermediate conveyance axis | shaft 114, 214, 314... Driving side end conveying shaft 115 315... Stepped portion 116 .. opposite end conveying shaft 120, 520... Driving shaft 121, 521. 530 Magnetic power transmission means 140, 540 Drive end bearing 150 Drive end frame 160, 260, 360 Drive end joint 161, 261, 361 Joint body 162, 262 ... Presser member 163 ... Presser member
363 ... Screw hole 170 ... Opposite end joint 171 ... Joint main body 172 ... Presser member 173 ... Presser member 180 ... Opposite end frame 190 ... Opposite end bearing

Claims (6)

A plurality of conveyance rollers constituting a conveyance surface of a conveyance object, a plurality of conveyance shafts that are rotatably arranged around the plurality of conveyance rollers, and a conveyance that is provided in a direction orthogonal to the plurality of conveyance axes In a roller conveyor apparatus having a drive shaft for driving a shaft, and a magnetic power transmission means for transmitting power by facing a magnetic rotating body provided on the driving shaft and a magnetic rotating body provided on each conveying shaft,
The transport shaft has an intermediate transport shaft that supports a transport roller and a drive side end transport shaft supported by a drive side end bearing on the magnetic rotating body side,
A roller conveyor device characterized in that the intermediate conveying shaft and the driving side end conveying shaft are configured to be split-coupled by a driving side end joint.   The drive-side end conveying shaft has a step portion that abuts the drive-side end bearing in the axial direction so that an axial force applied to the magnetic rotating body side abuts on the drive-side end bearing. The roller conveyor device according to claim 1, wherein the roller conveyor device is configured.   The roller conveyor device according to claim 1, wherein the driving side end conveyance shaft is formed integrally with the driving side end joint.   The roller conveyor apparatus according to any one of claims 1 to 3, wherein the driving-side end conveyance shaft is formed of a nonmagnetic material. The transport shaft further includes an opposite end transport shaft supported by an opposite end bearing at an end opposite to the magnetic rotating body;
The roller conveyor device according to any one of claims 1 to 4, wherein the intermediate conveyance shaft and the end conveyance shaft opposite to each other are configured so as to be divided and coupled by an opposite end joint.   The roller conveyor device according to claim 5, wherein the opposite end portion conveying shaft is formed integrally with the opposite end joint.

Images