JP2654854B2 - Suspension lifting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a suspension elevating device for suspending an object-to-be-conveyed hanger or the like by means of a suspending device, and in particular, suspending the hanger on a transporting moving body or the like. The present invention relates to a suspension elevating device suitable for use in a lowered state.

(Prior Art and Problems Thereof) In the case where the transporting moving body travels on an upward / downward inclined path portion, the suspension lifting / lowering device suspended at the lower end of the transporting moving body includes a horizontal support shaft. Must be constructed so as to be able to swing back and forth around and always maintain a vertical posture by gravity.However, the conventional suspension elevating device is integrated with the transporting moving body, or 2
It is a large and heavy device that can be hung by the transporting moving body at a location, and cannot be safely used by being suspended back and forth on the transporting moving body as described above.

(Means for Solving the Problems) In order to solve the conventional problems as described above, the present invention fixes an inner stator of a direct drive motor to a frame and supports the motor horizontally on the frame. Two drive shafts are mounted on the frame in parallel with the motor in a state where the two drive shafts are distributed on both front and rear sides with respect to a position directly below the motor, and the outer rotor of the motor and the two drive shafts are connected to each other. Provision is made for transmission means that are interlocked and connected so as to rotate in opposite directions. At the center position of one drive shaft and at both ends of the other drive shaft, a suspending member hoisting and unwinding rotating body is respectively mounted, and one end of the one drive shaft is provided. Are equipped with an electromagnetic brake and are wound around each of the three rotating bodies, and each of the three rotating bodies, when viewed from the axial direction of the rotating body, hang down from the side opposite to the side adjacent to each other. The present invention proposes a suspension elevating device in which a hanger for supporting an object to be transported is suspended by the suspending tool.

(Embodiment) Hereinafter, an embodiment in which the suspension elevating device according to the present invention is used by being suspended from a transporting moving body will be described with reference to the accompanying illustrative drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a self-propelled moving body for transport, which includes one driving wheel 2, a plurality of vertical shaft rollers 3 for steadying, and a pair of front and rear backup horizontal members. A direct drive motor 6 movably supported by a guide rail 5 via a shaft roller 4 and rotationally drives the drive wheel 2 in any direction, forward and reverse, and slides on a power supply rail 7 laid on the guide rail 5. And a pair of front and rear current collection units 8.

Reference numeral 9 denotes a suspension elevating device according to the present invention, which is the lower end of the machine frame of the transporting moving body 1 located below the guide rail 5.
A pair of left and right brackets 11 attached to 10 are suspended so as to be able to swing back and forth through a pair of concentric left and right horizontal support shafts 12, and a direct drive motor 13 for lifting drive,
Three rotating bodies 15a to 15c, each of which is wound so that three flat belt-shaped hanging members 14a to 14c can be wound up and out, respectively, and the three hanging members 14a to 14c support the object to be transported. Hanger
16 (illustration and description of the detailed structure are omitted).

As shown in FIG. 3 to FIG.
A pair of left and right side plates 17a, 17 supported by the horizontal support shaft 12
b and a connecting member 18 for connecting the side plates 17a and 17b to each other.
Between the side plates 17a, 17b such that the rotation axis 13a is slightly lower than the axis of the horizontal support shaft 12 (oscillation axis of the suspension elevating means 9) 12a and is parallel to the axis 12a. While being arranged, one end of the inner stator 20 is fixed to one side plate 17a of the frame 19. Also, a pair of left and right horizontal spindles 1
2 are fastened to each other by a fastening rod 21 penetrating through the inside stator 20 of the motor 13.

The rotating body 15a to 15c for winding up and feeding out the three hanging tools
Of these, the rotating body 15a is fixed to the center position of the drive shaft 22 supported between the side plates 17a and 17b, and the other two rotating bodies 15a and 15c
Are the side plates 17 of the drive shaft 23 supported between the side plates 17a, 17b.
a, 17b, fixed to both ends protruding from the
The reference numeral 23 is assigned to a position symmetrical with respect to the position immediately below the motor 13. Thus, the winding direction of the flat belt-shaped hanging members 14a to 14c around the rotating bodies 15a to 15c is farther from the position directly below the motor 13 when the rotating bodies are viewed from the axial direction. The winding direction of the rotating body 15a and the winding direction of the rotating bodies 15b and 15c are set to be opposite to each other such that the hanging members 14a to 14c hang down from the outside of the rotating bodies 15a to 15c.

The drive shafts 22, 23 of the respective rotating bodies 15a to 15c and the motor 1
The transmission means 24 for interlocking and linking the spur gears 3 includes a spur gear 26 fixed to the outer rotor 25 of the motor 13 and a wide spur gear 27 fixed to the drive shaft 22 in a state of meshing with the spur gear 26.
And the drive shaft so as to mesh only with the wide spur gear 27.
And a spur gear 28 fixed to the drive shaft 22.
An electromagnetic brake 29 is interposed between the one end of the base plate and the side plate 17b.

In the transfer device provided with the suspension elevating device 9 configured as described above, the direct drive motor 6 of the transfer moving body 1 is provided with the current collecting unit 8 and the transfer moving body 1 from the power supply rail 7. By energizing through the control device and rotating the drive wheel 2 by the motor 6, the vehicle can travel along the guide rail 5, and is supported by the hanger 16 suspended by the suspension elevating device 9. Can be transported.

Since the suspension elevating device 9 can swing back and forth with respect to the transporting moving body 1 about the horizontal support shaft 12, when the transporting moving body 1 travels on the up-and-down inclined path portion. Also, the vertical attitude can be maintained by gravity. When loading / unloading the conveyed object to / from the hanger 16, the electromagnetic brake 29 is switched from the control state to the release state, and at the same time, the direct drive motor 13 is supplied from the power supply rail 7 to the direct drive motor 13 via the power collection unit 8. Energize to drive the outer rotor 25 to rotate forward, transmit the rotation to the spur gears 26 to 28 and the drive shafts 22 and 23 of the transmission means 24, and
The hanger 16 can be lowered to an arbitrary level by rotating the hanger 16c at the same speed in the direction in which the flat belt-shaped hanging members 14a to 14c are fed. Also, the motor
By rotating the outer rotor 25 of the thirteen reversely, each rotating body 15a to 15c,
The hanger 16 can be raised by interlockingly rotating the suspenders 14a to 14c at the same speed in the winding direction.

When the hanger 16 has been raised and lowered, the motor
At the same time, the electromagnetic brake 29 is returned to the braking state and the drive shaft 22 is braked and fixed, whereby all the rotating bodies 15a to 15c can be locked.

(Operation and Effect of the Invention) According to the suspension elevating device of the present invention which can be implemented as described above, the elevation drive motor is located at the apex of the triangle and the lifting device is wound at both lower ends as viewed from the side. A drive shaft for driving the unwinding rotator is disposed, and there are three rotators for hoisting and unwinding the hangers, and the three rotators for winding and unwinding the three hangers are attached to the two drive shafts. In addition to separately mounting it into two parts, the drive shaft to which one rotating body is mounted is equipped with an electromagnetic brake that must be used together by using a direct drive motor as the motor. In a similar manner to the case where the two rotating bodies are attached to the two drive shafts without using both, the weight balance on both the front and rear sides centering on the motor is improved. The center of gravity of the entire device can be located near the axis below the motor.

Therefore, in combination with the use of a direct drive motor that is small, lightweight, and capable of low-speed, high-torque drive as the motor, the entire suspension elevating device can be combined into a substantially triangular compact device as viewed from the side. Not only can it be suspended, but also it can be suspended stably at its apex or near the axis of the motor. It can be used very conveniently as a lifting device.

[Brief description of the drawings]

1 is an overall side view, FIG. 2 is an overall front view showing a guide rail in a longitudinal section, FIG. 3 is a front view of a suspension elevating device with a cover omitted, and FIG. Plan view, fifth
The figure is a front view of the vertical development. DESCRIPTION OF SYMBOLS 1 ... Transfer moving body, 2 ... Driving wheel, 5 ... Guide rail, 9 ... Suspension elevating device, 11 ... A pair of left and right brackets, 12 ... A pair of left and right concentric horizontal support shafts, 13 ... … Direct drive motors, 14a-14c… Flat belt-shaped suspension tools,
15a ~ 15c …… Rotating body for lifting and unwinding the suspension tool, 16 ……
19 ... frame, 20 ... inner stator of direct drive motor, 21 ... fastening rod, 22, 23 ... drive shaft, 24 ... transmission means, 25 ... direct drive motor Outer rotor, 26-28 ... Spur gear, 29 ... Electromagnetic brake.

Claims (1)

(57) [Claims] 1. A state in which an inner stator of a direct drive motor is fixed to a frame, the motor is supported horizontally on the frame, and two drive shafts are distributed to the frame on both front and rear sides with respect to a position directly below the motor. A transmission means is provided for supporting the outer rotor of the motor and the two drive shafts in an interlocking manner such that the two drive shafts rotate in opposite directions, while supporting the motor in parallel with the motor. A rotator for hoisting and unwinding a hanging tool is attached to both ends of the other drive shaft, and an electromagnetic brake is attached to one end of the one drive shaft, and the rotator is wound around each of the three rotators. A suspension elevating device in which a hanger for supporting an object to be transported is suspended by three suspenders hanging down from the side of the rotating body far from the position directly below the motor when viewed from the axial direction.