JPH10194655A - Suction work device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily carry out a shift, transfer to a conveying vehicle, turning in a fixed position of a workpiece by arranging an electromagnet part in the tip part of a working arm body via a rotation driving part, turning the electromagnet part by means of the rotation driving part, and optionally changing the direction of the workpiece sucked by means of the electromagnet part. SOLUTION: A rotator 41 is connected to the tip part of a working arm body 17 via a universal joint 31, and a magnet 47 is installed in a rotation part 43 of the rotator 41. When the magnet 47 is rotated by means of the rotator 41, the direction of a workpiece sucked by means of a suction face 48 of the magnet 47 is optionally changed. By means of the universal joint 31, a degree of freedom providing an optional angle to the suction face 48 of the magnet 47 can be secured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction working device used at the tip of a working arm of a crane, a construction machine or the like.

[0002]

2. Description of the Related Art As shown in FIG. 3, a conventional suction working apparatus has a disk-shaped electromagnet section 3 attached to a tip end of a working arm 1 such as a hydraulic shovel by a chain 2. By operating the distal end portion of the arm 1, the work of magnetically attracting the magnetically attracted magnetic work to the electromagnet section 3 is transferred to another place (such as a carrier of a transport vehicle).

[0003]

In this conventional suction working apparatus, it is difficult to change the direction of the work once the work is attracted to the electromagnet section 3. For this reason,
For example, in loading work to load a long work on a transport vehicle, it is often impossible to load the work while aligning the work direction as it is, and when loading the work, the work direction is adjusted manually. It is not easy and work efficiency is not good.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a suction operation device capable of arbitrarily changing the direction of a work.

[0005]

According to a first aspect of the present invention, there is provided a suction working device for sucking a work at a tip of a movably provided working arm, the suction being connected to the tip of the working arm. And an electromagnet unit that is rotated by the rotation drive unit and attracts a work.

[0006] Then, the electromagnet section is rotated by the rotation drive section, and the direction of the work sucked by the electromagnet section is arbitrarily changed.

According to a second aspect of the present invention, in the suction working apparatus according to the first aspect, a universal joint is provided between the distal end of the working arm and the electromagnet.

[0008] The universal joint ensures the degree of freedom such that the attracting surface of the electromagnet section has an arbitrary angle.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG.
This will be described with reference to FIG.

FIG. 2 shows a construction machine provided with the suction working device according to the present invention. An upper revolving body 14 is provided on a lower traveling body 12 provided with a crawler belt 11 via a revolving portion 13 so as to be freely rotatable. The upper revolving unit 14 is provided with an engine and a power device 15 such as a hydraulic power source driven by the engine, a cab 16 for an operator to board and perform a driving operation, and a working arm body 17. .

The working arm 17 has a base end of the boom 21 pivotally supported by a pin (not shown) on the upper swing body 14 so as to be vertically movable. A base end of the arm 23 is fixed to a tip end of the boom 21 by a pin 22. The boom 21 is rotatably supported vertically, and the boom 21 is vertically rotated by a boom cylinder 24 provided between the boom cylinder 14 and the upper revolving unit 14, and the arm 23 is provided between the boom 21 and the arm 23. The cylinder 25 is turned around the pin 22 as a fulcrum.

FIG. 1 shows a suction working device provided at the tip of the working arm 17, and an arm forming the working arm 17.
A universal joint (free joint) 31 is provided at the tip of 23.

The universal joint 31 is attached to a boss 32 provided at the end of the arm 23 by a shaft 33 perpendicular to the plane of the drawing.
A pair of bearing plates 35 projecting upward from the joint body 34 are connected rotatably in the front-rear direction as viewed from the operator, and a pair of bearing plates projecting downward from the joint body 34.
A rotator mounting portion 38 is connected to a rotatable left-right direction as viewed from the operator by a shaft 37 extending in the front-rear direction as viewed from the operator. A spacer 39 is provided between the pair of bearing plates 36 projecting downward and the rotator mounting portion 38.
Is provided.

The work arm 17 is connected via the universal joint 31.
A rotation drive unit (hereinafter, referred to as a rotator 41) is connected to the tip of the. The rotator 41 is formed by a rotator main body 42 in which the rotator mounting portion 38 is integrally protruded, and a rotating portion 43 that is rotated with respect to the rotator main body 42.

The rotator 41 includes a type in which the rotary portion 43 is directly rotated like a hydraulic motor or a torque actuator, and a type in which the linear motion of the hydraulic cylinder is converted into rotary motion by a spiral mechanism or a link mechanism. , May be used.

The hydraulic pressure for driving the rotator 41 is supplied from a hydraulic source on the upper swing body 14 through a rotator valve (not shown) controllable in the cab 16 and along the working arm 17 along the rotator main body. It is supplied by a hydraulic line 44 laid up to 42. The hydraulic line 44 is connected to the rotator body 42
A flexible tube 46 such as a hydraulic hose, which can be freely deformed, is used in the vicinity of the connecting portion 45 to the connecting member 45.

The rotating part 43 of the rotator 41 is integrally provided with a disk-shaped electromagnet part (hereinafter, referred to as a magnet 47) for attracting a work. This magnet 47
The lower surface is an adsorption surface 48, and a battery (not shown) wired in the same manner as the hydraulic line 44 from a battery, a generator, or an external power supply mounted on the upper revolving unit 14 through a power control unit in the cab 16 When the power is supplied, the magnetic work is magnetically attracted to the attracting surface 48 by the exciting action when the power is supplied, and the attracting action of the attracting face 48 is released by the demagnetizing action when the power is not supplied.

Next, the operation of this embodiment will be described. For example, when performing a loading operation of loading a magnetic work such as scrap material on a transport vehicle by using the suction operation device, a traveling operation by the lower traveling unit 12, a turning operation by the upper revolving unit 14, an elevating operation by the boom 21, an arm Combined with the front-rear movement by 23, the attracting surface 48 of the magnet 47 is lowered to almost the center of the magnetic work, and the magnetic work is magnetically attracted by energizing the magnet 47, and the work is transported to a truck or other transport vehicle. Transfer.

When the workpiece is transferred in this manner, the operator controls the rotator valve by operating the cab 16 or by operating the remote controller or the like from outside the cab to move the rotator 41 rightward or leftward. When the magnet 47 is rotated by the rotator 41 and the direction of the work attracted by the magnet 47 is changed and adjusted, the work can be loaded on the carrier of the transport vehicle in an orderly manner. That is, the operation of repeating the loading in the same direction, the operation of alternately loading in the orthogonal direction, or the operation of loading the work in the irregular empty space of the transport vehicle can be easily performed by the operation in the cab. .

Further, since the degree of freedom of the magnet 47 is ensured by the universal joint 31, even if the non-sucking surface of the work is inclined, the suction surface 48 of the magnet 47 contacts the non-sucking surface of the work. When they come into contact with each other, they can change their own angles so as to follow the non-sucking surface of the work, and can adhere to each other. Further, when the work lands on a loading platform or the like, the operation can be performed smoothly.

Next, an embodiment included in the present invention but not shown in the drawings will be described.
Between the rotator 41 and the magnet 47, or one may be provided between the tip of the arm 23 and the rotator 41, and the other may be provided between the rotator 41 and the magnet 47. Is also good. In short, it suffices if a universal joint can be formed as a result between the tip of the working arm 17 and the magnet 47.

The rotator 41 of the illustrated embodiment is also used.
Is a hydraulically operated type, but the rotary drive unit of the present invention also includes an electric actuator such as an electric motor.

Furthermore, although the suction working device of the illustrated embodiment is based on a hydraulic shovel type construction machine as a base machine, the present invention is not limited to this. For example, the present invention may be applied to the tip of a working arm of a crane. May be provided.

[0024]

According to the first aspect of the present invention, the electromagnet section is provided at the tip of the working arm via the rotary drive section.
By rotating the electromagnet part by the rotation drive unit, the direction of the work sucked by the electromagnet part can be changed arbitrarily, such as moving the work, transferring to a carrier, changing the direction at a fixed position, etc. Work can be performed easily.

According to the second aspect of the present invention, the universal joint is provided between the tip of the working arm and the electromagnet.
With this universal joint, the degree of freedom that the attracting surface of the electromagnet portion is at an arbitrary angle can be secured, and for example, the adhesion between the electromagnet portion and the work when the work is attracted by the electromagnet portion can be secured.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a suction working device according to the present invention.

FIG. 2 is a front view showing a construction machine provided with the suction work device.

FIG. 3 is a front view showing a construction machine provided with a conventional suction work device.

[Explanation of symbols]

 17 Working arm 31 Universal joint 41 Rotation drive 47 Electromagnet

Claims (2)

[Claims] 1. A suction operation device for adsorbing a work at a tip end of a movably provided work arm, a rotation drive unit connected to a tip end of the work arm, and a rotation drive unit rotating by the rotation drive unit. And an electromagnet section for adsorbing the workpiece. 2. The suction working device according to claim 1, wherein a universal joint is provided between a tip portion of the working arm and the electromagnet portion.