JP3307796B2 - Transfer equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a vehicle having a substantially cylindrical guide rail for guiding a moving vehicle on a ground side, wherein a guide surface for guiding the moving vehicle by contacting a wheel of the moving vehicle is provided. The present invention relates to a transport facility provided on the inner side of the cylindrical guide rail.

[0002]

2. Description of the Related Art In such a transport facility, a moving vehicle is guided by a guide rail and moves to transport a load. When the mobile vehicle moves, the wheel body of the mobile vehicle comes into contact with and is guided by the guide surface provided on the inner side of the guide rail, so that dust is generated by this contact. Therefore, when the transport equipment is installed in a place where dust is disliked, such as a clean room, it is necessary to prevent the dust from leaking out of the guide rail. For this reason, conventionally, the guide rail is formed in a substantially cylindrical shape to prevent dust from being scattered, and a fan for dust collection and a filter for preventing the passage of dust are provided on the peripheral wall of the guide rail, Over the entire length of the guide rail, intermittently arranged at a series or at appropriate intervals,
The dust in the guide rail is collected by the fan and the filter, and the dust in the guide rail is prevented from leaking outside.

[0003]

Therefore, in the above-mentioned conventional configuration, it is necessary to arrange equipment for preventing dust from leaking from the guide rails over the entire length of the guide rails. It has become complicated, and improvements have been desired. The present invention has been made in view of the above circumstances, and a first object of the present invention is to prevent dust in a guide rail from leaking to the outside while simplifying the configuration of transport equipment. is there. A second object is to achieve the first object while effectively preventing dust in the guide rail from leaking to the outside. A third object is to achieve the first or second object while rationally configuring a mobile vehicle and a guide rail. A fourth object is to achieve the first, second, or third object while minimizing the generation of dust in the guide rail.

[0004]

The transfer equipment of the present invention is provided with a substantially cylindrical guide rail for guiding a moving vehicle on the ground side, and guides the moving vehicle by contacting the wheel of the moving vehicle. The guide surface to be provided is provided on the inner side of the cylindrical guide rail, and the first characteristic configuration is that an exhaust opening is formed in a peripheral wall portion of the guide rail in a longitudinal direction of the guide rail. And run along the guide rails.
That the the moving vehicle side, provided with air purifying means, the air
Purifying means, said ventilating air to the outside in the guide rail through the exhaust opening, and is the air which is the air in that is configured to clean. A second characteristic configuration is that, in the first characteristic configuration, the exhaust opening is formed downward at a lower portion of the guide rail.

A third characteristic configuration is that, in the second characteristic configuration, an intake opening is formed upward at an upper portion of the guide rail. A fourth characteristic configuration is the vehicle according to the first, second, or third characteristic configuration, wherein the moving vehicle includes the traveling body portion that includes the wheel body and is located inside the guide rail, And a connecting portion connecting the traveling bogie portion and the loading portion, wherein the exhaust opening extends along a moving direction of the moving vehicle. It is formed in the shape of a groove, and is characterized in that the connecting portion is arranged so as to pass through the exhaust opening of the guide rail.

According to a fifth characteristic configuration, in the above-mentioned fourth characteristic configuration, the loading section is connected in a suspended state by the connecting section extending downward from the traveling bogie section, and the air purifying means is connected to the loading section. It is in the point provided in the part.
The sixth characteristic configuration is the first, second, third, fourth or fifth embodiment.
In the characteristic configuration, a power supply line is provided along the guide rail to generate a magnetic field when an alternating current is supplied, and the moving vehicle has a power receiving coil that generates power by a magnetic field formed by the power supply line. It is in the prepared point. A seventh feature configuration is the first, second, third, fourth, fifth, or sixth feature configuration described above, wherein a primary coil, which constitutes a linear motor, and a thrust that generates thrust in cooperation with the primary coil. The generation member is disposed in a distributed manner on the guide rail and the moving vehicle.

[0007]

According to the first characteristic configuration of the present invention, the air purifying means provided on the moving vehicle side converts the air in the guide rail formed into a substantially cylindrical shape into the exhaust wall formed on the peripheral wall of the guide rail. Since the air is ventilated to the outside through the opening and the ventilated air is cleaned, dust in the guide rail does not leak out of the guide rail. Moreover, since the air purifying means is provided on the moving vehicle side, it is not necessary or necessary to provide a means on the guide rail side for preventing dust in the guide rail from leaking outside. Nevertheless, the scale can be reduced. According to the second characteristic configuration of the present invention, since the exhaust opening for ventilating the air in the guide rail to the outside is formed downward at a lower portion of the guide rail, it is possible to prevent dust from stagnating. The air to be ventilated can efficiently contain the dust in the guide rail.

According to the third feature of the present invention, since the intake opening is formed upward at the upper part of the guide rail, the air sucked from this intake opening flows through the guide rail. It flows out from the exhaust opening formed downward at the lower part of the guide rail. Accordingly, for example, in a clean room, a downflow airflow is often formed, and thus the air in the guide rails is smoothly ventilated to the outside through the exhaust opening. According to the fourth characteristic configuration of the present invention, the traveling vehicle includes a traveling bogie section located inside the guide rail, a loading section located outside the guide rail, a traveling bogie section and the loading section. And a connecting portion for connecting the two, and the loading portion is located on the outer side of the guide rail, which is convenient for transferring the load. In addition, with such a configuration of the moving vehicle, it is necessary to form a groove-shaped opening in the guide rail along the moving direction of the moving vehicle to allow passage of the connecting portion of the moving vehicle. The groove for permitting the passage of the connecting portion also serves as an exhaust opening for ventilating the air in the guide rail to the outside.

According to the fifth characteristic configuration of the present invention, the loading section is suspended and connected by the connecting section extending downward from the traveling bogie section located on the inner side of the guide rail. The air in the guide rail is efficiently ventilated in a dusty state through an exhaust opening located at a lower portion of the guide rail so that the extending connection portion is inserted. In addition, since the air purifying means is provided not in the traveling bogie but in the loading section, the traveling rail is provided with air purifying means, so that the guide rail is larger than in the case where the traveling bogie is enlarged. Can be prevented. According to the sixth characteristic configuration of the present invention, the mobile vehicle is supplied with electric power via the power supply line provided along the guide rail. Therefore, even if the air purifying means operated by electric power is provided on the moving vehicle side, it is not always necessary to provide a power supply for the air purifying means on the moving vehicle side. According to the seventh aspect of the present invention, since the moving vehicle is moved by the propulsive force generated by the linear motor, the guide between the wheel and the guide rails is compared with the structure in which the wheel of the moving vehicle is rotationally driven by the motor or the like. The frictional force between the ring and the guide surface is reduced, and dust generation between the ring body and the guide surface can be suppressed.

[0010]

According to the first characteristic configuration, as described above, it is not necessary or necessary to provide a means on the guide rail side for preventing dust in the guide rail from leaking to the outside. However, the scale can be reduced, and the dust in the guide rails can be prevented from leaking outside while simplifying the configuration of the transport equipment.
According to the second characteristic configuration, the air to be ventilated efficiently contains the dust in the guide rail, so that the dust in the guide rail can be effectively taken in by the air purifying means, and the dust in the guide rail can be effectively taken in. Since the dust can be prevented from leaking from the exhaust opening or the like at a location away from the moving vehicle, the dust in the guide rail can be more effectively prevented from leaking to the outside, and the effect of the first characteristic configuration can be reduced. Can play. According to the third characteristic configuration, the air in the guide rail passes through the exhaust opening to the outside smoothly, so that the dust in the guide rail can be effectively taken in by the air purifying means. It is possible to prevent the dust in the guide rail from leaking out of the exhaust opening or the like at a location distant from the vehicle, so that the dust in the guide rail can be more effectively prevented from leaking to the outside. The effect of the first characteristic configuration can be obtained.

[0011] According to the fourth characteristic configuration, the moving vehicle is configured to be convenient for transferring a load, and the groove for permitting the passage of the connecting portion allows the air in the guide rail to ventilate to the outside. , And the effects of the first, second or third characteristic configuration can be achieved while rationally configuring the moving vehicle and the guide rail. The fifth
According to the characteristic configuration, in addition to the effect of the fourth characteristic configuration, the air in the guide rail is efficiently ventilated with dust, and the guide rail can be prevented from being enlarged, so that the transport equipment can be further improved. While simplifying the configuration of
It is possible to prevent dust in the guide rail from leaking to the outside. According to the sixth feature configuration, in addition to the effects of the first, second, third, fourth, or fifth feature configuration, it is not always necessary to provide a power supply for the air purification means on the moving vehicle side. Further, the configuration of the transport equipment can be simplified. According to the seventh characteristic configuration, as described above, the generation of dust between the wheel body and the guide surface can be suppressed. Therefore, the generation of dust in the guide rail is suppressed as much as possible, and The effects of the third, fourth, fifth or sixth characteristic configuration can be obtained.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a transfer equipment to which the present invention is applied. As shown in FIG. 1, a moving vehicle A driven by a linear motor LM and a substantially cylindrical guide rail B for guiding the moving vehicle A are provided, and the primary coil 1 of the linear motor LM is A magnet 2 is mounted on the guide rail B and is a thrust generating member for generating thrust in cooperation with the primary coil 1. In this embodiment, a linear DC motor is used as the linear motor LM. A feed line 3 for generating a magnetic field when an alternating current is supplied is arranged along the guide rail B at a lower portion inside the guide rail B, and a power is supplied to the moving vehicle A by the magnetic field formed by the feed line 3. Is provided, and the electric power generated from the power receiving coil 4 drives the moving vehicle A for traveling and article transport as described later.

The respective parts will be described below. Moving car A
Are located on the inner side of the guide rail B and are supported on the guide rail B in a mounted state, and are located in a protruding state below the guide rail B, and are mainly related to holding of articles. It comprises a loading section A2 and a connecting section A3 composed of a connecting member 5 for connecting the traveling carriage section A1 and the loading section A2. The traveling bogie section A1 is, as shown in FIGS.
It is composed of two bogies 30 of a front bogie 30a and a rear bogie 30b, and the connecting portion A3 is attached to each of the front bogie 30a and the rear bogie 30b so as to extend downward at the center of the moving vehicle in the lateral width direction. Front connecting member 5a
And two connecting members 5 of a rear connecting member 5b. Further, the two trucks 30 of the traveling bogie section A1 are connected by a connecting arm 32 for fixedly connecting the front connecting member 5a and the rear connecting member 5b of the connecting portion A3.

Each of the front bogie 30a and the rear bogie 30b has a pair of left and right running wheels 6 rotatable around an axis along the lateral width of the moving vehicle, and a steady rest rotatable around an axis along the vertical direction. And four linear wheels LM are provided at positions above the mounting portions of the traveling wheels 6 and the rotary wheels 7.
Primary coil 1 is fixedly mounted. Therefore, the primary coil 1 includes the front bogie 30a and the rear bogie 30.
b The posture changes in conjunction with each posture.

The rear connecting member 5b is, as shown in FIG.
The rear bogie 30b is rotatable around the longitudinal axis by the bearing 33.
The lower end of the rear connection member 5b is fixed to the loading portion A2, and the front connection member 5a is also supported by the same support configuration as the rear connection member 5b. Further, the rear connecting member 5b power receiving coil 4 is mounted rotatably. The power receiving coil 4 is, as shown in FIG.
A magnetic material 4a having an E-shaped longitudinal section and a primary coil 4b wound around a central projection of the magnetic material 4a are provided at a position where the magnetic material 4a covers the power supply line 3 It is attached to the posture along. Since the upper end portion of the power receiving coil 4 is connected to the rear bogie 30b by the connection arm 34, when passing through the curved portion of the guide rail B, the traveling wheel 6 and the rolling wheel 7 move in the horizontal direction of the guide rail B. As the rear bogie 30b is guided and changes posture by contact with the moving vehicle guide surface HG and the vertical moving vehicle guide surface VG, the power receiving coil 4 also changes posture, and the power receiving coil 4 Maintain the posture of almost.

As shown in FIG. 6, the loading section A2 is equipped with a lifting table 8 which is supported in a suspended state so as to be able to move up and down, a controller E which manages driving of the primary coil 1 and the like. In the center of the upper portion of the loading section A2, a hood 40 spreading hem toward the opening 15 of the guide rail B is provided.
2, fan chambers 41 are attached to the lower side of the hood 40 at the front and rear ends in the moving direction of the moving vehicle A, and the filter chambers 4 are provided at respective sides of the fan chambers 41.
2 are installed. Fan 41 in fan room 41
a, and a motor 41b for rotating and driving the fan 41a is mounted below the fan chamber 41. An opening 40a communicating with the fan chamber 41 is formed on the bottom surface of the hood 40, and a filter 42a that blocks the passage of dust is provided in the filter chamber 42 that communicates with the fan chamber 41.

The elevator 8 is moved up and down by a tow rope 8a driven and wound up by a motor 8d (not shown in FIG. 1), and the load C is placed on the elevator in a suspended state. The hook 8b is swingably driven by a motor 8c. The electric power generated in the power receiving coil 4 by the supply from the power supply line 3 is supplied to the power supply circuit 21 as shown in FIG. This power supply circuit 21
Has a rectifier circuit and a voltage stabilization circuit,
The power from the power receiving coil 4 is rectified and adjusted in voltage,
The primary coil drive circuit K1 for driving the primary coil 1, the motor drive circuit K2 for driving the motor 41b for the fan 41a, and the like, and the controller E are supplied.
The controller E is a communication device 23 that communicates by optical communication with a communication device 22 provided in the article transfer station ST.
And a wireless communication device that communicates with the interlock control unit IC described above, a sensor that detects a position with respect to the station ST, a sensor that detects a distance from another preceding vehicle A, and the like, which are not illustrated. It has various sensors.

As shown in FIG. 5, the guide rail B is installed in a suspended state from the ceiling side by a suspension frame 13, and includes a rail member 10 integrally formed of a non-magnetic material such as aluminum. The magnet 2 is disposed on a magnet support 2 a attached to the inner upper surface of the rail member 10. A support frame 12 is attached to the bottom of the guide rail B at intervals in the rail longitudinal direction, and both ends of the support frame 12 are supported by a hanging frame 13 with respect to the ceiling. That is, the guide rail B is suspended from the ceiling and supported, and the entire transport equipment is of a ceiling transport type.

On the inner surface of the guide rail B, as described above, a horizontal moving vehicle guide surface HG and a horizontal moving vehicle guide surface HG, which contact and guide the wheel WE of the moving vehicle A including the running wheels 6 and the rolling wheels 7, respectively. A guide surface GS including a vertical moving vehicle guide surface VG is formed. A pair of left and right slit covers 14 are fixed to the lower portion of the guide rail B by bolts. Between the slit covers 14, a slit-shaped opening 15 through which the connecting member 5 of the moving vehicle A in the vertical position is inserted is formed. The slit-shaped opening 15 is formed in a groove shape along the longitudinal direction of the guide rail B. Immediately above the mounting location of the slit cover 14, the power supply line 3 is provided in a pair on the left and right sides with the slit-shaped opening 15 interposed therebetween while being supported by the support member 3a.

At the upper side of the guide rail B, upward intake openings 11 are formed at regular intervals along the longitudinal direction of the guide rail B.
a rectifying plate 17 for rectifying the airflow flowing from the intake opening 11 is provided on the upper surface of the magnet a.
Is attached. The current plate 17 has an inclined surface 17a symmetrical to the left and right when viewed in the longitudinal direction of the guide rail B, so that the airflow flowing from the intake opening 11 smoothly flows to the left and right sides of the magnet 2 and the magnet support base 2a. In this way, the substantially flat magnet 2 and the magnet support 2a, which cover the intake opening 11, are suppressed from acting as a resistance to the airflow flowing from the intake opening 11.

When the fan 41a of the loading portion A2 of the moving vehicle A is rotated by the drive of the motor 41b, the fan 41a flows into the guide rail B from the intake opening 11 of the guide rail B and passes through the guide rail B. , Through the opening 15, the hood 40 and the fan chamber 41, into the filter chamber 42,
After the dust is removed in 2a, it goes down. Therefore, the hood 40, the fan chamber 41, the fan 41a, the motor 41b, the filter chamber 42, and the filter 42a ventilate the air in the guide rail B to the outside through the opening 15 which also functions as the exhaust opening, and Function as air purifying means AC for purifying the air to be discharged.

The transport equipment having the above-described configuration is provided from a ground-side control device (not shown) to the controller E of the moving vehicle A.
Command information such as information on the destination station ST is transmitted via the communication devices 22 and 23. The controller E repeatedly travels to and stops at the destination station ST based on the command information.

[Other Embodiments] Other embodiments will be listed below. In the above embodiment, the moving vehicle A is configured such that the loading portion A2 is located below the guide rail B and is connected to the traveling bogie portion A1 in a suspended state. An opening 15 through which the connecting portion A3 passes is formed on the upper surface side of the guide rail B, and is located above the guide rail B, and the air purifying means AC provided in the loading portion A2 guides the guide rail B. It is good also as a structure which sucks in the air inside. In the above embodiment, all the air purifying means AC is provided in the loading portion A2.
May be attached to the connecting portion A3 and positioned in the guide rail B. In the above embodiment, the fan 41a
Is disposed on the air flow path upstream side of the filter 42a, but the fan 41a may be disposed on the air flow path downstream side of the filter 42a.

In the above embodiment, the exhaust opening for allowing the air in the guide rail B to vent to the outside is also used as the opening 15 for permitting the moving vehicle A to pass through the connecting portion A3. Alternatively, the exhaust opening may be formed separately from the opening 15 on the peripheral wall of the guide rail B along the longitudinal direction of the guide rail B. In the above embodiment, the linear motor LM for driving the traveling vehicle A is constituted by a linear DC motor, but may be constituted by another type of linear motor LM such as a linear induction motor. Further, a configuration may be employed in which a motor for rotating the running wheel 6 is provided.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the structure shown in the accompanying drawings.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part according to an embodiment to which the present invention is applied.

FIG. 2 is a side view of a main part according to the embodiment of the present invention.

FIG. 3 is a bottom view of a main part according to the embodiment of the present invention.

FIG. 4 is an explanatory diagram of power supply of a mobile vehicle according to the embodiment of the present invention.

FIG. 5 is a sectional view of a guide rail according to the embodiment of the present invention.

FIG. 6 is a schematic configuration diagram according to an embodiment of the present invention.

FIG. 7 is a configuration diagram of a main part according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Primary coil 2 Thrust generating member 3 Power supply line 4 Power receiving coil 15 Exhaust opening A Moving vehicle AC Air purification means A1 Traveling truck part A2 Loading part A3 Connecting part B Guide rail C Load GS Guide surface LM Linear motor WE Ring

────────────────────────────────────────────────── ─── Continued on the front page (51) Int.Cl. ⁷ Identification code FI B61D 27/00 B65G 54/02 B65G 54/02 B60L 13/02 M (56) References JP-A-63-304640 (JP, A JP-A-6-98486 (JP, A) JP-A-5-69945 (JP, A) JP-A-7-132822 (JP, A) JP-A-7-61592 (JP, A) 189403 (JP, A) JP-A-6-40333 (JP, A) JP-A-3-121971 (JP, A) JP-A-3-64164 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B61B 13/06 B61D 27/00

Claims (7)

(57) [Claims] 1. A substantially cylindrical guide rail (B) for guiding a moving vehicle (A) is provided on the ground side, and comes into contact with a wheel (WE) of the moving vehicle (A). A guide surface (GS) for guiding A) is a transport facility provided on the inner side of the cylindrical guide rail (B), and an exhaust opening (15) is formed in a peripheral wall portion of the guide rail (B). )
But are formed along the longitudinal direction of the guide rail (B), the transport vehicle (A) side to travel by being guided by the guide rail (B), an air purification unit (AC) is provided, the air The purifying means (AC) is provided with the exhaust opening (15).
Ventilating the air in the guide rail (B) to the outside through, and, adapted to clean the air which is the air
Transport equipment that is. 2. The transport equipment according to claim 1, wherein the exhaust opening (15) is formed downward at a lower portion of the guide rail (B). 3. The transport equipment according to claim 2, wherein an intake opening (11) is formed upward at an upper portion of the guide rail (B). 4. The mobile vehicle (A) is connected to the wheel (WE).
And a loading section (A2) which is located on the inner side of the guide rail (B) and is located on the outer side of the guide rail (B) and on which the load (C) is mounted. ), And a connecting portion (A3) connecting the traveling bogie portion (A1) and the loading portion (A2), wherein the exhaust opening (15) is in a moving direction of the moving vehicle (A). The transport according to claim 1, 2 or 3, wherein the connecting portion (A3) is arranged in a state of being inserted through the exhaust opening (15) of the guide rail (B). Facility. 5. The loading section (A2) is connected in a suspended state by the connecting section (A3) extending downward from the traveling trolley section (A1), and the air purifying means (AC) is connected to the loading section. The transport equipment according to claim 4, wherein the transport equipment is provided in the placing section (A2). 6. A power supply line (3) is provided along the guide rail (B), to which an alternating current is applied to generate a magnetic field, and the moving vehicle (A) is provided with the power supply line (3). The transport equipment according to claim 1, further comprising a power receiving coil (4) for generating electric power by the formed magnetic field. 7. A linear motor (LM) comprising a primary coil (1) and a thrust generating member (2) for generating a thrust in cooperation with the primary coil (1), the guide rail (B). The transport equipment according to claim 1, 2, 3, 4, 5, or 6, wherein the transport equipment is distributed and arranged on the moving vehicle (A).