JPH0632425U - Drive conveyor system for automated guided vehicles - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a drive conveyor device capable of keeping the transfer speed of a drive conveyor device provided on an automatic guided vehicle constant under any circumstances. [Structure] The drive conveyor devices 2 and 3 provided on the unmanned transport vehicle 1 in a front-rear distribution are composed of a plurality of drive rollers 4 each having a drive source therein, and the drive rollers 4 are provided.
Are connected by the winding transmission means 6 and the front and rear drive conveyor devices 2, 3 are connected by the idle shaft 7, so that the rotation speeds of the drive rollers 4 can be synchronized. It is possible to prevent the movement of the load W from becoming unstable during transportation from 3 to the station or the like.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a drive conveyor device provided on an automated guided vehicle, and more particularly, to a drive conveyor device that can maintain a constant conveyor speed.

[0002]

[Prior art]

 Conventionally, as shown in FIG. 6, an automated guided vehicle 20 is provided with drive conveyor devices 21 and 22 which are divided into front and rear parts on the upper surface of a vehicle body. As shown in FIG. 7, the drive conveyor devices 21 and 22 are provided with an electric motor 14 and a speed reducer 15 therein, and are provided with a plurality of drive rollers 4 that can drive the rotating shaft 13 to rotate. . In addition, by fixing both shafts of the rotating shaft 13 of the drive roller 4 to the frame of the unmanned transporting trolley 20 in the unmanned transporting trolley 20, the roller body 4A can be rotated, and the load W placed on the upper surface thereof can be rotated. Can be fed to or from the station 23.

[0003]

[Problems to be solved by the device]

 However, the conventional configuration has the following problems. That is, since the drive source is provided for each drive roller 4, the rotation speed of each drive roller 4 is not strictly constant, and as a result, the load is being conveyed from the drive conveyor devices 21, 22 to the station 23. The movement of W may become unstable.

In addition, there is a problem that the transport speed decreases when the load is partially applied to the plurality of drive rollers 4 due to the shape of the bottom surface of the load W and the like. In particular, just before the transfer of the load W to the station 23 is completed, the load acts only on the drive rollers 4 at the outermost ends of the front and rear drive conveyor devices 21 and 22, and the transport force is extremely low. However, in the worst case, there is a problem that transfer is impossible.

The present invention has been devised in view of the above situation, and an object thereof is to provide a drive conveyor capable of keeping the transfer speed of a drive conveyor device installed on an automatic guided vehicle constant under any circumstances. To provide a device.

[0006]

[Means for Solving the Problems]

 The present invention relates to a drive conveyor device provided on an unmanned transporting vehicle in a front-back distribution manner, wherein the drive conveyor device comprises a plurality of drive rollers each having a drive source therein, and the drive rollers are wound around each other. This is based on a structure in which the front and rear drive conveyor devices are connected by a transmission means and idle shafts.

[0007]

【Example】

 An embodiment of the present invention will be described below in detail with reference to the drawings. 1 and 2, the automated guided vehicle 1 includes steering and driving wheels 12 and fixed wheels 11, which can be driven by a well-known automatic steering control. Devices 2, 3 are provided.

The drive conveyor devices 2 and 3 are configured by arranging a plurality of drive rollers 4 side by side. The drive roller 4 has the same configuration as the conventional one, but as illustrated in FIGS. 3 and 5. The timing pulley 5 is fixed to one side of the roller body 4A of the drive roller 4. The timing pulley 5 can rotate together with the roller body 4A and is rotatably attached to the rotating shaft 13. Therefore, when the rotary shaft 13 is fixed and the electric motor 14 is rotationally driven, both the timing pulley 5 and the roller body 4A can rotate as a unit.

As shown in FIG. 3, each of the plurality of drive rollers 4 is wound around a timing belt 6 as a winding transmission means in the present example via the timing pulley 5 and an idle pulley 10 described later. It is configured to be connectable. Although not shown, the drive roller 4 in the middle portion has a small winding angle of the timing belt 6. Therefore, a tension pulley or the like is arranged in the middle to increase the winding angle. You can also do it.

As shown in FIG. 4, the left and right idle pulleys 10 are respectively connected to the idle shaft 7, and are provided in the middle of the idle shaft 7 at a substantially central portion of the automated guided vehicle 1. A bearing 16 is mounted so that it can be fixed to the raised portion 8. Therefore, the drive conveyor devices 2 and 3 that are distributed before and after can be rotationally driven in synchronization with each other, and the drive rollers 4 of each drive conveyor device 2 and 3 can be synchronized by the timing belt 6. Will be done.

Although described in detail above, the present invention is not limited to the above embodiment, and for example, a chain, a V-belt or the like can be used as a winding transmission means, and the idle shaft can be used at the other end side. Of course, it may be configured so as to be provided also.

[0012]

[Effect of device]

 The present invention configured as described above has the following operational effects. That is, since the drive rollers 4 are connected to each other by the timing belts 6, the rotation speeds can be synchronized, which makes the movement of the load W unstable during the transportation from the drive conveyor devices 21 and 22 to the station 23. Can be prevented.

Further, due to the shape of the bottom surface of the load W and the like, even if the load is partially applied among the plurality of drive rollers 4, the transport speed of only the drive roller 4 is reduced. It is possible to eliminate the problem, and particularly, the load W can be stably transferred even before the transfer is completed on the station 23, and a suitable unmanned carrier can be provided.

[Brief description of drawings]

FIG. 1 is a plan view of an automatic guided vehicle adopting the present invention.

FIG. 2 is a side view of an automatic guided vehicle adopting the present invention.

FIG. 3 is a plan view for explaining a wrapped state of a timing belt.

FIG. 4 is a perspective view for explaining an idle pulley and an idle shaft.

FIG. 5 is a side view for explaining a drive roller and a timing pulley.

FIG. 6 is a plan view of a conventional automated guided vehicle.

FIG. 7 is a perspective view of a conventional drive roller.

[Explanation of symbols]

 1 Unmanned Transport Vehicle 2 Drive Conveyor Device 3 Drive Conveyor Device 4A Roller Body 4 Drive Roller 5 Timing Pulley 6 Timing Belt 7 Idle Shaft 8 Ridge 9 Support 10 idle Pulley 13 Rotating Shaft 14 Electric Motor 15 Reducer 16 Bearing

Claims (1)

[Scope of utility model registration request] 1. A drive conveyor device provided on an unmanned transport vehicle in a front-back distribution manner, wherein the drive conveyor device comprises a plurality of drive rollers each having a drive source therein, and each drive roller is wound. A drive conveyor device for an automatic guided vehicle, which is connected by a hanging transmission means, and front and rear drive conveyor devices are connected by an idle shaft.