JPH01282067A - Conveyor system using trolley car - Google Patents

Abstract

PURPOSE:To aim at the compactification of a trolley as a whole by supporting both main and sub driving wheels pivotally on a conveying trolley car, while driving a main driving wheel with a main motor via a speed reducer small in reduction gear ratio and a sub driving wheel with a sub-motor via a speed reducer large in reduction gear ratio, respectively. CONSTITUTION:In a conveying trolley 1 hung down from a guide rail 2 consisting of both lower and upper rail parts 2A, 2B via first and second trolleys 3, 4, each of main and sub driving wheels 5, 6 rolling on top of the lower rail part 2A is installed in these trolleys 3, 4. The main driving wheel 5 is driven by a main motor 13 via a speed reducer 11 small in reduction gear ratio and also small in rotational resistance from the wheel 5, while the sub driving wheel 6 is driven by a sub motor 16 via a speed reducer 14 large in reduction gear ratio and a clutch 15. At the time of travel at a horizontal route part, the main motor alone is driven for travel at high speed, and at the time of travel at an up-grade part or the like, the sub motor 16 is driven, making it travel at low speed.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a transport device using an electric train, which is equipped with a traveling drive wheel driven by a rotary motor.

(Prior Art) A conventional conveyance device using a train of this type is provided with simply one traveling drive wheel and one rotary motor that drives the wheel via a reduction gear. Therefore, if there is an upward slope in the travel path, a reduction gear that can switch the reduction ratio is used to reduce the rotational speed of the drive wheel in the upward slope to increase the torque or to increase the rotation speed. A method has been adopted in which a high-horsepower rotary motor that can obtain the necessary torque even when the torque is reduced is used, and the rotational speed of the rotary motor is reduced in the ascending slope section to decelerate the speed.

(Problem to be Solved by the Invention) However, as mentioned above, the reducer with a switchable reduction ratio and the rotary motor with high horsepower are both larger than the reducer with a fixed reduction ratio and the rotary motor with small horsepower. becomes. However, for example, in the case of a transport device using a suspended mole rail type electric train, a rotary motor with a reduction gear is arranged on the side of one guide rail to drive a traveling drive wheel that fits into the guide rail. Therefore, as the reducer and rotary motor become larger as mentioned above, not only will the entire train and the guide rail have to be made larger, but in some cases, it may be necessary to make the entire train and the guide rail larger to avoid interference between the guide rail and the rotary motor, etc. This has the disadvantage that even the radius of curvature of the guide rail at the horizontal curve path section must be increased, making it impossible to construct the entire equipment compactly.

(Means for Solving the Problems) In order to solve the conventional problems as described above, the present invention has the following features:
A main drive wheel and a sub-drive wheel are pivotally supported for running on a transport train movably supported along a fixed running route, and a main drive wheel that drives the main drive wheel via a reducer with a small reduction ratio. The present invention proposes a transport device using an electric train, which is provided with a rotary motor and a sub-rotary motor that drives the sub-drive wheel via a reduction gear with a large reduction ratio and a clutch.

(Example) An example of the present invention will be described below based on the attached illustrative drawings.

In Figs. 1 to 3, 1 is a transport train, and a first trolley 3 is mounted on a guide rail 2 constituting a fixed running route.
and is movably suspended via the nitrol 4. The guide rail 2 has a lower rail portion 2A and an upper rail portion 2B connected and integrated by a side wall portion 2C on one side. The first trolley 3 and the second trolley 4 include a main drive wheel 5 and a sub drive wheel 6 that roll on the upper surface of the lower rail section 2A of the guide rail 2, and a rising section 2a of the lower rail section 2A. Steering guide rollers 7.8 sandwiching the falling portion 2b of the upper rail portion 2B from both left and right sides before and after the main and sub drive wheels 5 and 6; A pair of front and rear backup rollers 9, 10 that abut against the rail portion 2B are each pivotally supported. Reducer 1 with low rotational resistance from
A main rotary motor 13 equipped with an electromagnetic brake 12 is attached to drive the main drive wheel 5 via the main drive wheel 1, and the nitrol 4 has a large reduction ratio of, for example, 1/40, such as a worm reducer. A sub rotary motor 16 is attached to drive the sub drive wheel 6 via a reduction gear 14 and an electromagnetic clutch 15.

Each rotary motor 13.16 has a drive wheel 5,6
The rotary shaft is connected to the rear side of the reducer 11.14 arranged on the side of the 11. 17A and 17B are attached. Reference numeral 18 denotes a power supply rail unit attached to the inside of the side wall portion 2C of the guide rail 2, and the power supply rail unit 18 is connected to each of the current collector units 17A, 1.
7B makes sliding contact. Therefore, the current collector unit) +7A, 17
Power is supplied from B to the main rotary motor +3.16, electromagnetic brake 12, electromagnetic clutch 15, etc. via a controller (not shown) when necessary. In addition, control signals are exchanged with the main controller on the ground side.
The power supply rail unit, ) 18 and the current collection unit 17
A, 17B.

Each of the trolleys 3.4 is rotatably connected to the train body 21 around a vertical support shaft +9.20 located directly below the wheels 5.6.

In the transport device configured as described above, when the transport train 1 is run on a horizontal path, only the main rotary motor 13 is energized and operated, and its rotation is transferred to the reducer 1 with a small reduction ratio.
By transmitting the signal to the main drive wheel 5 via the main drive wheel 5, the conveyance train 1 can be caused to travel at high speed along the guide rail 2 due to the high speed rotation of the main drive wheel 5. At this time, by turning off the electromagnetic clutch 15 between the auxiliary drive wheel 6 and the reducer 14 with a large reduction ratio,
The rotational resistance of the sub-drive wheel 6 is reduced to reduce the load on the main rotary motor 13. Further, as shown in FIG. 4, when the transport train 1 travels upward on the ascending slope section 22, the sub-rotary motor 16 is energized instead of the main rotary motor 13, and the electromagnetic clutch 15 is activated.
is turned on and the rotation of the auxiliary rotary motor 16 is transmitted to the auxiliary drive wheel 6 via the reducer 14 with a large reduction ratio and the electromagnetic clutch 15, thereby causing the auxiliary drive wheel 6 to rotate at a low speed with large torque. With this, the transport train 1 can be reliably moved upward at low speed with a large thrust.

Incidentally, no matter which motor is used to run the transport train 1, when stopping the transport train 1, power must be cut off to the motor 13 or 16 that is in operation and the electromagnetic brake 12 must be turned on. Good. Further, when the transport train 1 is traveling at low speed by driving the sub-drive wheel 6 with the sub-rotary motor 16, the main drive wheel 5 that rotates is rotated.
Since the speed reducer 11 and the main rotary motor 13 that are interlocked with the main drive wheel 5 act as a rotational load on the main drive wheel 5, in order to further reduce this rotational load, the main drive wheel 5 and the speed reduction motor m1
1 or between the reducer 11 and the main rotary motor 13.

Furthermore, when the transport train 1 is driven to travel by the main rotary motor 13 or the auxiliary rotary motor 16, it is also possible to change the rotational speed of these motors 13, 16 by, for example, inverter control, if necessary. Also, auxiliary rotation motor 1
When the transport train 1 is driven to travel in step 6, it is not limited to traveling on the upward slope section 22. For example, when the transport train 1 is run at low speed on a horizontal curve route, the sub-rotary motor 16 can be used to drive the transport train 1 .

(Operations and Effects of the Invention) As described above, according to the conveyance device of the present invention, when the conveyance train is run on a horizontal path where large thrust is not required, the main drive wheels are driven through a reducer with a small reduction ratio. By driving the main rotary motor, the transport train can run at high speed. When the transport train is running on an ascending slope where a large thrust is required, a reducer with a large reduction ratio is used for the auxiliary drive wheels. By driving the auxiliary rotary motor through the auxiliary rotary motor, the transport train can be driven upwardly at low speed with a large thrust.

In this way, although it can run at high speed on the horizontal path section and switch to low speed travel with large thrust on the upward slope section, it has a small structure with two types of driving drive wheels, main and sub, and a constant reduction ratio. It uses two reducers and two small rotary motors with relatively low horsepower, and can be configured by dispersing them in appropriate locations. The entire transportation train can be constructed relatively compactly compared to a construction using a rotary motor.

In particular, in the case of a suspended mole rail type transport train in which a speed reducer and rotary motor must be placed on the side of one guide rail, as in the embodiment, it naturally has a pair of front and rear trolleys, so each trolley drive wheel for running,
Reducers and rotary motors can be distributed,
Therefore, in order to avoid the rotary motor etc. from walking on the guide rail, there is no need to increase the radius of curvature of the guide rail at the horizontal curve route, or to increase the distance between the front and rear wheels. The entire train can be constructed compactly within the space provided.

In addition, by distributing the current collecting units to the front and rear trolleys as in the example, the configuration of the front and rear trolleys becomes approximately equal, eliminating wasted space and making the whole structure very well-balanced and compact. I can do it.

[Brief explanation of the drawing]

Fig. 1 is a side view, Fig. 2 is a longitudinal front view, Fig. 3 is a schematic plan view showing the arrangement of main parts, and Fig. 4 is a side view showing the running state of the transport train on an upward slope section. . 1... Transport train, 2... Guide rail, 3...
First trolley, 4...Nitrolley 15...Main drive wheel, 6...Subdrive wheel, 7.8...Steering guide roller, 9.10...Backup roller, 11... ...Reducer with a small reduction ratio, 12...Electromagnetic brake, 13...Main rotary motor, 14...Reducer with a large reduction ratio, 15...Electromagnetic clutch, 16...
- Sub-rotary motor, 17A, 17B... Current collection unit, 18... Power supply rail unit 7), 19.20... Vertical support shaft for attaching trolley frame, 21... Train body.

Claims (1)

[Claims] A main drive wheel and a sub drive wheel are pivotally supported for running on a transport train movably supported along a fixed running route, and the main drive wheel is driven via a reducer with a small reduction ratio. A transport device using a train, comprising a rotary motor and a sub-rotary motor that drives the sub-drive wheel via a reducer with a large reduction ratio and a clutch.