JPH0572825U - Screw drive - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To make the slat conveyor drive compact. [Constitution] The conveyor chain 2 is attached to the outer surface of the hollow cylinder 11.
In a device for driving a slat conveyor or a chain conveyor by a screw drum 10 having screw fins 12 that engage with the driven member 7 of FIG. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a screw driving device used for driving a slat conveyor or a chain conveyor.

[0002]

[Prior Art]

 The slat conveyor is assembled so that each slat can fall at a predetermined position in a direction orthogonal to the traveling direction, and it is used for sorting and transporting luggage at airport passenger terminals and small luggage delivery centers. ing. The caterpillar system is usually used to drive this slat conveyor, but in order to prevent noise from being generated in the drive section, recently, as disclosed in Japanese Utility Model Application Laid-Open No. 50-128882, the conveyor chain is used. A device that drives a conveyor by rotating a screw drum with a screw fin that engages with an engagement roll that is a driven member is adopted.

As shown in FIG. 3, the drive device disclosed in the above-mentioned Japanese Utility Model Publication is composed of a screw drum 20, a motor 23 with a speed reducer, and a coupling 24. The screw drum 20 is a base member. It is supported by shaft support members 28 and 29 on 30. Further, the screw drum 20 is provided with a screw fin 22 on the outer surface of a hollow cylinder 21, which engages with the engaging roll 7 which is a driven member of the conveyor chain, as described above. The conveyor chain 2 traveling in the conveyor frame 1 has the above-mentioned engaging rolls 7 at the joints of the respective links, and the traveling wheels 3 are attached to the frame 1 on both sides of the center of the link. It is in contact with the provided guide rail 5. The slats 4 are attached to the upper portions of the brackets 6 provided on the respective links so that the front and rear slats 4 partially overlap each other. When the screw drum is rotated by the drive of the motor 23, the screw fins 22 simultaneously propel several engagement rolls 7 in the drive unit to move the series of slats attached to the conveyor chain 2 in one direction. Drive to. In the screw drum 20 in FIG. 3, the drum rotation shaft 25 and the motor 23 with a reduction gear are directly connected to each other via the coupling 24, but the screw drum 20 and the motor 23 are connected to each other. It is also known that the installation position on the plane is deviated, and a transmission member (not shown) is wound around a drum rotation shaft and a motor shaft for driving.

[0004]

[Problems to be solved by the device]

 In the conventional drive device, since the three elements of the drive part including the motor and the speed reduction mechanism, the transmission part, and the screw drum are assembled, the entire device becomes large and the installation position may be limited. .. In addition, even when assembling, it is necessary to center each of the above-mentioned parts, which complicates the work and increases the assembly cost. An object of the present invention is to provide a compact drive device that is not restricted by the installation position and the like.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is a drive device for a slat conveyor or a chain conveyor, in which a motor and a reduction mechanism are built in a cylinder with a screw fin. That is, in a device for driving a slat conveyor or a chain conveyor by a screw drum having screw fins that engage with a driven member of a conveyor chain on the outer surface of a hollow cylinder, a motor and a speed reduction mechanism are provided in the screw drum. It is characterized by having integrated. The motor and reduction mechanism are mounted on a fixed shaft inserted inside the hollow cylinder.

[0006]

[Action]

 The screw drum is rotated by the drive of the motor built into the screw drum via the reduction mechanism. The action of the screw fins caused by the rotation of the screw drum propels the engaging rolls in the drive section all at once, causing the slats to run in one direction.

[0007]

【Example】

 Next, the present invention will be described in detail with reference to the drawings. FIG. 1 is a partially cutaway front view of a screw driving device of the present invention, and FIG. 2 is a partially enlarged view of a screw drum. The drive device of the present invention comprises a screw drum 10 having screw fins 12 on the outer surface of a hollow cylinder 11, a motor 13, a brake 14 and a speed reduction mechanism 15 built in the screw drum 10. The screw fins 12 are formed at the same pitch as the engagement rolls 7 which are the driven members of the conveyor chain 2, and engage with a plurality of (three in FIG. 1) engagement rolls 7 at the same time in the drive unit. To do.

A conveyor chain 2, which is a main component of the conveyor, is provided on a guide rail 5 arranged in a conveyor frame 1. Engagement rolls 7 are provided at the joints of each link of the conveyor chain 2, and traveling wheels 3 are attached to both sides of the center of the link. Further, the slats 4 adjacent to the upper portion of the bracket 6 of each link are attached so as to partially overlap each other. Further, as shown in an enlarged manner in FIG. 2, the output pinion 16 of the speed reduction mechanism 15 meshes with an internal gear 17 fixed to the end plate 18 of the hollow cylinder 11. In addition, 8a and 8b are fixed shafts provided inside the hollow cylinder 11, and 9a and 9b are bearing members.

In the above device, when the motor 13 supported by the fixed shaft 8a is rotated, the end supported by the other fixed shaft 8b via the reduction gear mechanism 15, the pinion 16 and the internal gear 17. The plate 18 and the hollow cylinder 11 are rotated. The rotation of the screw fins 12 causes the engagement rolls 7 in the drive unit to be propelled all at once, so that the slats 4 travel in one direction. When stopping traveling or changing the speed, the brake 14 incorporated in the screw drum 10 is operated.

[0010]

[Effect of the device]

 As described above, according to the present invention, the motor and the speed reducing mechanism are integrated in the screw drum to form a drive device for the slat conveyor or the chain conveyor, which contributes to the compact structure and the reduction of the components. As a result, it is possible to provide a drive device with less restrictions on the installation position and reduce the assembly cost.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of a screw driving device according to the present invention.

FIG. 2 is an enlarged side view of a main part of FIG.

FIG. 3 is a side view of a conventional screw drive device.

[Explanation of symbols]

 1 Frame 2 Conveyor Chain 3 Running Wheel 4 Slat 5 Guide Rail 6 Bracket 7 Engaging Roll 10 Screw Drum 11 Hollow Cylinder 12 Screw Fin 13 Motor 14 Brake 15 Reduction Mechanism 18 End Plate

Claims (1)

[Scope of utility model registration request] 1. A device for driving a slat conveyor or a chain conveyor by a screw drum having screw fins engaging with a driven member of a link chain on an outer surface of a hollow cylinder, wherein a motor and a reduction mechanism are provided in the screw drum. A screw drive device characterized by being integrated inside.