JPH01266057A - Monorail traveling device - Google Patents

Abstract

PURPOSE:To ensure sufficient driving torque in the captioned device which travels on a monorail to convey parts, etc., by providing a driving wheel on the output shaft of a driving motor and directly driving the driving wheel. CONSTITUTION:In the captioned device in which a monorail traveling device A travels by itself on a monorail 21 which is suspended from the ceiling of an engine assembly line via supporting arms 22, a traveling device body 26 is formed by providing a driving motor 34 on the upper portion while providing a lifting up/down mechanism 35 on the lower portion thereof respectively. The output shaft 36 of the driving motor 34 is placed in a direction perpendicularly intersecting to the monorail 21 and a pulley 37, a traveling clutch 38, a driving wheel 39, and a traveling brake 40 are provided on this output shaft 36. A direct drive motor which can obtain a high torque at a low speed rotation is used for the driving motor 34, to directly rotate the driving wheel 39 while driving the lifting up/down mechanism 35 via a belt 41 by the power thereof.

Description

[Detailed description of the invention] [Industrial use! I? ] The present invention relates to a monorail traveling device, and more particularly, to a monorail traveling device that is lightweight and provides sufficient driving torque.

[Background Art] For example, an assembly line for vehicle engines and the like is provided with transport equipment that automatically transports engine parts to predetermined positions. This transportation equipment is equipped with a climbing section and a descending section on the monorail because it is easy to secure the installation space and has good workability. The monorail traveling device is designed to automatically travel and transport parts to predetermined locations.

[Problems to be Solved by the Invention] By the way, the monorail traveling device is designed to run by driving the drive wheels with a drive motor, but in the transportation equipment that effectively utilizes three-dimensional space in this way, the monorail Since there is a climbing section and a descending section, the mechanism that drives the drive wheels must rotate at a low speed and provide high torque.

For this reason, the power from the drive motor is transmitted to the drive wheels using a power transmission mechanism, a deceleration mechanism, etc., but friction and backlash occur in the power transmission mechanism and deceleration mechanism, and the device is complicated accordingly. Therefore, it is heavy.

Furthermore, in addition to the travel motor that drives the drive wheels to travel, the monorail travel device is equipped with a lift motor that raises and lowers the parts to be transported at a predetermined position, which increases the number of drive sources. The separating device is large and heavy, and the support structure of the monorail that transports the parts needs to be strengthened, which is undesirable.

The present invention has been made in view of the above circumstances, and the object of the first invention is to provide a monorail traveling device that can obtain high torque at low speed rotation with a simple mechanism, and the object of the second invention is is a drive motor that drives the drive wheels and
It is an object of the present invention to provide a monorail traveling device that can also be used to drive an elevating mechanism.

[Means for Solving the Problems] In order to solve the above problems, the monorail traveling device of the first invention drives the drive wheels with a drive motor and transports parts by traveling over 1,000 rules. In the monorail traveling device, the drive wheel is arranged on the output shaft of the drive element,
A feature of the vehicle is that the drive motor directly drives the drive wheels.

Further, the monorail traveling device of the second invention includes a drive wheel and a traveling clutch arranged on the output shaft of the drive motor, and a lifting mechanism having a lifting clutch connected to the output shaft via a power transmission means, It is characterized in that the travel clutch and the lifting clutch are switched and operated by a control means.

[Operation] In the monorail traveling device of the first invention, a drive wheel is arranged on the output shaft of a drive motor, and the drive motor directly drives the drive wheel to travel on the monorail.

In addition, in the monorail traveling device of the second invention, the traveling clutch is actuated to drive the drive wheels by the drive motor, and the elevating clutch is actuated to drive the elevating mechanism with the output of the drive motor via the power transmission means. do.

[Embodiment] Next, an embodiment of the present invention will be described in detail based on the accompanying drawings.

FIG. 1 is a schematic perspective view showing an engine assembly line.

In this figure, reference numeral 1 denotes a monorail, which is suspended from a ceiling (not shown) of an engine assembly line. The engine assembly line has a first floor section 2 and a mezzanine floor section 3. The first floor section 2 has a line side parts supply port 4, and the mezzanine floor section 3 has an empty packet return lane 5. and a parts supply lane 6. The monorail 1 is arranged between the first floor section 2 and the mezzanine floor section 3, so that parts and the like can be transported by effectively utilizing the three-dimensional space.

Since the monorail 1 is arranged on the ceiling of the first floor part 2 and the mezzanine part 3, there is an ascending part 1a and a descending part 1b between them.
and is provided. A monorail traveling device A runs on this monorail 1 using its own blade.

This monorail traveling device A is located at the position of the line side parts supply port 4 on the first floor portion 2 or in the middle 2W! It stops at the vacant packet return lane 5 and parts supply lane 6 of section 3, and moves up and down to lift and lower parts.

The monorail traveling device A is shown in FIGS. 2 to 4, where FIG. 2 is a front view of the monorail traveling device A, FIG. 3 is a side view of the monorail traveling device A, and FIG. 4 is a plan view of the handling mechanism. It is a diagram.

In FIG. 2, reference numeral 21 denotes a monorail made of H-shaped steel, which is suspended from a ceiling 23 via a support arm 22, and a monorail traveling device A runs on this monorail 21. This monorail 21 is provided with a fi2 display 24 via a stay 25.
A position detection sensor 27 is provided in the device main body 26 of the monorail traveling device A, and these sensors can obtain a signal for stopping at a predetermined position.

Further, a detection sensor 28 for detecting obstacles is provided on the front side of the device main body 26.

A sliding electronic 29 is provided in the device main body 26 of the monorail traveling device A via a support 30, and power is supplied from the sliding electronic 31 provided in the monorail 1 to a power supply unit 32, and this monorail traveling device A has a control unit 33. controlled by

A drive motor 34 is provided at the top of the device main body 26, and a lifting mechanism 35 is provided at the bottom.

An output shaft 36 of the drive motor 34 is arranged in a direction perpendicular to the monorail 1, and a pulley 37 is disposed on the axis of the output shaft 36.
, a traveling clutch 38, a driving wheel 39, and a traveling brake 40.
is located. Power is transmitted to this pulley 37 via the timing belt 41 to the pulley 37 of the lifting mechanism 35, and at this time it is driven with low torque. Note that instead of the timing belt 41, power may be transmitted by a chain or a shaft.

A direct drive (DD) motor is used as the drive motor 34, and this DD motor is a motor that can obtain high torque at low speed rotation, an electromagnetic clutch is used as the travel clutch 38, and a TF1 magnetic bush brake is used as the travel brake 40. and are operated by control signals from the control unit 33, respectively.

An auxiliary wheel 42 is provided on the device main body 26, and this auxiliary wheel 4
2 comes into contact with the lower surface of the monorail 21 at a position symmetrical to the drive wheel 39. Support wheels 43 are provided on both sides of the auxiliary wheels 42, and the auxiliary wheels 42 and the support wheels 43 help the vehicle travel, but due to the frictional force with the drive wheels 39 described above, the monorail 21's pitched portions and It is now possible to travel with its own blade between the dismounting section and the dismounting section.

Further, the device main body 26 is provided with a pair of upper auxiliary wheels 44 and a pair of lower auxiliary wheels 45.
4 and lower auxiliary wheels 45 are arranged to sandwich the upper and lower sides of the monorail 21, and guide the monorail traveling equipment cover A so that it does not come off from side to side when traveling.

A drive shaft 46 of the lifting mechanism 35 is rotatably supported by a bracket 47, and a pulley 37 is attached to the drive shaft 46.
is provided. This drive shaft 46 has a lifting clutch 4.
81 and a lifting brake 49 are provided, and the lifting clutch 4
8 uses an electromagnetic clutch, and the lifting brake 49 uses an electromagnetic brake. Gears 50 are provided at both ends of the drive shaft 46, and the gears 50 drive a pair of drive gears 51 disposed on both sides of the drive shaft 46.
The drum 52 is arranged coaxially with the drum 52 and is rotated. A wire 53 is wound around each drum 52, and a handling mechanism 54 is moved up and down by this wire S3.

In the handling mechanism 54, a drive shaft 56 is rotatably provided on a frame 55, and a drive gear 57 provided on the drive shaft 56 meshes with a drive gear 59 of a drive motor 58, so that the handling mechanism 54 is rotated by the drive motor 58. It has become.

The drive shaft 56 is formed with a right-hand thread and a left-hand thread, and as the drive shaft 56 rotates, the hand members 61 supported by the guide shaft 60 move toward each other to grip the component. They are designed to release their grip on the parts by moving in the direction of touching each other.

Next, the operation of this embodiment will be explained.

When power is input, when the power is input manually to drive the drive motor 34, the travel brake 40 is actuated for braking, while the travel clutch 3
8 is released so that power is not transmitted to the drive wheels 39.

Also, at this time, the lifting brake 49 of the lifting mechanism 35 is operated and braked, and the lifting clutch 48 is in the released state, and the pulley 37 is rotated by the timing belt 41 due to the rotation of the output shaft 36 of the drive motor 34. However, rotation of the drive shaft 46 is restricted.

When traveling, the operation of the traveling brake 40 is released,
Connect the travel clutch 38. At this time, the lifting mechanism 35
The vertical brake 49 is operated and braked, the vertical clutch 48 is released, and even if the pulley 37 is rotated by the timing belt 41 due to the rotation of the output shaft 36 of the drive motor 34, the drive shaft 46 will not rotate. It is regulated.

The output of this drive motor 34 is directly transmitted to the drive wheels 39 via a traveling clutch 38 in a direct drive system.
It is designed to provide high torque at low speed rotation. Therefore, it is possible to run the monorail 21 smoothly with a small device, climb up the ascending part of the monorail 21 with its own blade, and brake the descending part of the monorail 21 with its own blade to descend.

When the stopped monorail traveling device A reaches a predetermined position, the control unit 33 controls the drive motor 34 based on the detection signal obtained by the operation of the position detection sensor 27 to reduce the rotation speed and stop it at the predetermined position. . At this stop position, the travel brake 40 is activated to perform braking, and the travel clutch 38 is deactivated to cut off power transmission to the drive wheels 39.

When lifting or lowering parts at this stop position, in the stopped state, the travel brake 40 is activated and brakes are applied, and the travel clutch 38 is released to cut off the transmission of power to the drive shaft 39. ing.

In this state, the lift brake 49 is released, the lift clutch 48 is activated, and the drive shaft 46 is driven by the power of the drive motor 34.
is rotated, and at this time it is driven with low torque.

As the drive shaft 46 rotates, the wire 53 is wound or unwound, and the handling mechanism 54
moves up and down to move it to a predetermined position.

In this manner, when the handling mechanism 54 reaches a predetermined position, the drive motor 58 is rotated to rotate the drive shaft 56. As a result, the hand members 61 supported by the guide shaft 60 move toward each other to grip the component, and move away from each other to release the grip on the component.

Although the above embodiment describes the case where the monorail is placed on the ceiling, it can also be applied to one placed on the floor.
Furthermore, the drive motor is not limited to a DD motor.

[Effects of the Invention] As described above, in the monorail traveling device of the present invention, the drive wheels are arranged on the output shaft of the drive motor, and the drive wheels are directly driven by the drive motor, so that the drive wheels are The direct drive system allows for low-speed rotation and high torque, and since it does not use a power transmission mechanism or deceleration mechanism, there is no friction or backlash, and the equipment is simpler. It becomes smaller and lighter.

Further, the monorail traveling device of the present invention includes a drive wheel and a traveling clutch arranged on the output shaft of the drive motor, and
This output shaft is connected to an elevating mechanism having an elevating clutch via a power transmission means, and the traveling clutch and the elevating clutch are switched and operated by the control means, so that the drive wheels can be rotated at a low rotational speed. The lifting mechanism, which is driven with high torque and lifts and lowers the parts to be transported at a predetermined position, can be driven with low torque, making it easy to secure the installation space for the entire device, and making the device smaller and lighter. I can do it.

[Brief explanation of the drawing]

Figure 1 shows how to assemble the engine! 2 is a front view of the monorail traveling device, FIG. 3 is a side view of the monorail traveling device, and FIG. 4 is a plan view of the handling mechanism. In the figure, 1.21 is the monorail, 26 is the device body, 34
is a drive motor, 35 is a lifting mechanism, 36 is an output shaft, 38 is a running clutch, 39 is a drive wheel, 40 is a running brake, 4
1 is a timing belt, 48 is a lifting clutch, and 49 is a lifting brake. bl Figure 2 Figure 3

Claims (1)

[Claims] 1. A monorail traveling device that drives a drive wheel with a drive motor, travels on a monorail, and conveys parts, etc.
A monorail traveling device characterized in that the drive wheel is arranged on the output shaft of the drive motor, and the drive wheel is directly driven by the drive motor. 2. A driving wheel and a traveling clutch are disposed on the output shaft of the drive motor, and the output shaft is connected to a lifting mechanism having a lifting clutch via a power transmission means, and the driving clutch and the lifting clutch are controlled by a control means. A monorail traveling device characterized in that it is controlled by.