JP2514644Y2 - Loading crane - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crane for loading and unloading a large number of aligned drums or paper rolls of a paper mill.

[0002]

2. Description of the Related Art Conventionally, the method of transferring drums in a chemical factory or the like is by means of a crane or a forklift truck. The crane lifts and carries a load by the three-dimensional movement of the carrier such as vertical movement and forward / backward / leftward / rightward movement. On the other hand, in a forklift truck, a mast is erected in front of a traveling vehicle body, and a fork for carrying a load on the mast is provided so as to be able to move up and down.

[0003]

In the handling of drum cans by the crane, a large number of drums can be loaded at one time, but a large number of standing drums cannot be loaded as they are. On the other hand, a forklift truck can load standing drums as it is, but cannot load many drums at once.

An object of the present invention is to provide a cargo handling crane which solves the above problems and can directly handle a large number of standing drums or paper rolls of a paper mill.

[0005]

The present invention provides a crane main body which travels on a pair of left and right rails, a gripping frame suspended from the crane main body via a lifting drive device, and a gripping frame provided on the gripping frame. A number of grip sections formed by partition plates capable of accommodating a load-bearing object, corrugated portions formed at lower edges of side walls of the grip sections and projecting downward at four corners of the grip sections, and the grip sections And a gripping body that is provided on each of the gripping members and that faces the side surface of the load-bearing object and that can move forward and backward in the gripping section.

[0006]

With the above-described structure, the grip frame is lowered through the elevating and lowering drive device so that a large number of standing drums or the like can be loaded.
The accessory is stored in the gripping section, the gripper is moved inward, and the load is applied.
To grip the character object. Then, the crane frame is raised and the crane main body is moved through the elevating and lowering drive device, the crane frame is lowered again, and the clamp body is moved outward to release the load-bearing object .

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, a bridge-shaped crane main body 2 traveling on a pair of left and right traveling rails 1 installed on the floor of a factory or the like has a frame-shaped frame 4 provided on top of legs 3. The legs 3 are provided with wheels 6 driven by a traveling motor 5. A frame-shaped gripping frame body 8 is suspended from the frame 4 via a lifting drive device 7 so as to be lifted and lowered. A lifting motor 9 is mounted on one leg 3 of the lifting drive device 7, a chain 13 is suspended from a sprocket 10 of the lifting motor 9 and a sprocket 12 of a lifting shaft 11, and the lifting shaft 9 is further lifted. A part of the lifting chain 14 is engaged with each of the three sprockets 14A mounted on the 11, and the tips of the lifting chains 14 are attached to the grip frame 8 via the guide sprockets 14B axially mounted on the frame 4. While connected, the other end of the lifting / lowering chain 14 is connected to the balance 15. Further, the grip frame 8 is provided with partition plates 16 arranged in a grid pattern, and grip sections 18 capable of accommodating a drum can 17 as a load-bearing material in an upright state are formed in a horizontal row. Has been done. Further, the lower edge of the side wall 19 of the grip section 18 is formed with a corrugated portion 20 projecting downward at four corners of the grip section 18.

As shown in FIGS. 3 to 6, the grip section
A gripping body 21 is provided at two opposite corners of 18. This gripping body 21 is attached to a side surface 17 of the drum 17 via an advancing / retreating drive device 22.
It is provided so as to be capable of advancing and retracting inside and outside of the side wall 19 so as to face A, and when the grip body 21 moves forward,
The two sides of the side surface 17A can be gripped. Further detailed description of the grip body 21, a guide rail 23 is obliquely provided on the side wall 19, a slider 24 is slidably fitted on the guide rail 23, and a friction coefficient such as rubber is attached to the slider 24. The grip 25 made of a large material is attached. The grip 25 faces the side surface 17A of the drum 17 and
It is installed almost vertically. Reference numeral 24A is a spring having one end connected to the slider 24 and the other end connected to the lower portion of the side wall 19 for urging the slider 24 downward. Further, the advancing / retreating drive device 22 is provided with an advancing / retreating drive motor 26 provided at the center of the upper part of the grip frame body 8. The advancing / retreating drive motor 26 is provided with a sprocket 26A of the advancing / retreating drive motor 26 and bearings 27 on both sides for advancing / retreating. A chain 29 is suspended between sprockets (not shown) on the shaft 28, and a chain for advancing / retreating is attached to a sprocket 30 fixed to the shaft 28 for advancing / retreating.
31 is connected, and the other end of the advancing / retreating chain 31 is connected to the slider 24. Therefore, by rotating the forward / backward drive motor 26 in one direction, the forward / backward chain 31 is wound around the sprocket 30 and the slider 24 is moved.
While moving up against the spring 24A, the forward / backward drive motor 26 is rotated in the opposite direction, whereby the forward / backward drive chain 31 is extended from the sprocket 30 and the slider 24
Is lowered by being biased by the spring 24A. In addition, reference numeral 32 in FIG. 2 denotes an elevating guide rail provided on the leg portion 3 so that the roller 33 axially attached to the grip frame body 8 can roll.

Next, the operation of the above configuration will be described. The gripping frame body 8 is moved by the traveling motor 5 onto the drum cans 17 arranged in an upright state on the floor. Next, when the lifting motor 9 is operated and the lifting chain 14 is drawn out, the grip frame body 8 descends and the drum can 17 is accommodated in the grip section 18. At this time, the slider 24 is positioned above the guide rail 23 together with the grip 25, and the length between the facing grips 25 is larger than the diameter of the drum can 17. Even if the gripping section 18 is not directly above the drum can 17 and is slightly deviated, the corrugated portion 20 guides the drum can 17 and the gripping section 18 is guided.
A drum can 17 is accommodated in 18. Next, the forward / backward drive motor
When the chain 26 for advancing and retreating is extended by operating 26, the slider 24 moves together with the grip 25 and the spring 24A as shown in FIG.
The gripping portion 25 contacts the side surface 17A of the drum can 17 while being moved downward while being biased by. When the lifting chain 14 is returned by raising the gripping frame 8 by reversing the lifting motor 9 again, the grip portion 25 is pressed against the peripheral surface of the drum can 17 by the weight of the drum can 17, and the drum can 17 is gripped. And rises together with the grip frame body 8. In this way, the traveling motor 5 is operated while the drum can 17 is gripped, and the crane main body 2 is moved to a predetermined position. Then, the raising / lowering motor 9 is operated again, and the raising / lowering chain 14 is extended to lower the gripping frame 8 to set the drum can 17. Increasing the advance and retreat for the chain 31 is operated forward and backward driving motor 26 after the grip portion 25 as shown in FIG. 6 is a drum 17
The drum can 17 is moved to the outside of the side surface 17A, the gripped state of the drum can 17 is released, and the drum can 17 can be moved to a desired position.

As described above, in the above embodiment, the grip frame body 8 is hung from the crane main body 2 traveling on the pair of left and right rails 1 via the elevating and lowering drive device 7, and the section provided in the grip frame body 8 is suspended. The plate 16 forms a number of gripping compartments 18 capable of accommodating the drum cans 17, and the gripping compartments 18 are provided on the side of the drum cans 17.
By providing the gripping bodies 21 facing the surface 17A so as to be able to advance and retreat inward and outward of the gripping section 18, a large number of drums 17 are moved down the gripping frame body 8 and accommodated in the gripping section 18. Further, by gripping the drum can 17 with the grip body 21, a large number of drum cans 17 can be transferred at one time.

Further, since the corrugated portions 20 projecting downward at the four corners of the grip section 18 are formed on the lower edge of the side wall of the grip section 18, even if the grip section 18 is slightly deviated from the drum can 17. When the grip frame body 8 is processed, the drum can 17 is guided by the corrugated portion 20 and is reliably accommodated in the grip section 18.

The present invention is not limited to the following embodiment. For example, the crane main body may be an overhead crane instead of the bridge type, and the advancing / retreating drive device for advancing / retreating the gripping body uses a hydraulic cylinder or the like. It may be modified in various ways. Further, in the embodiment, the case of the drum can is shown, but it may be a paper roll of a paper mill or the like, and the gripping sections are provided in one horizontal row, but two or more rows may be provided.

[0013]

EFFECTS OF THE INVENTION The present invention is formed by a crane main body traveling on a pair of right and left rails, a grip frame suspended from the crane main body via a lifting drive device, and a partition plate provided on the grip frame. And a plurality of gripping sections capable of accommodating the loaded article, corrugated portions formed on the lower edge of the side wall of the gripped section and projecting downward at the four corners of the gripped section, and the loaded article provided in each of the gripping sections out direction is obtained by including a retractably provided a gripper, erected a number of drums or paper mill are easily handling the object handling of such paper roll side and opposite to the gripping section of can do.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a front view showing an embodiment of the present invention.

FIG. 3 is a plan sectional view of an essential part showing an embodiment of the present invention.

FIG. 4 is a vertical cross-sectional view of an essential part showing an embodiment of the present invention.

FIG. 5 is an explanatory view of a gripping state showing an embodiment of the present invention.

FIG. 6 is an explanatory view of a grip release state showing an embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 rail 2 crane main body 7 lifting drive device 8 gripping frame body 16 partition plate 17 drum can (loaded material) 17A side surface 18 gripping section 19 side wall 20 corrugated portion 21 gripping body

Claims (1)

(57) [Scope of utility model registration request] 1. A crane main body traveling on a pair of right and left rails, a gripping frame suspended from the crane main body via an elevating drive device, and a load-bearing member formed by a partition plate provided on the gripping frame . numerous and gripping compartment capable of accommodating a waveform section for projecting downward in the four corners of the formed gripping sections in the side wall lower edge of the gripping sections, each provided prior to the gripping zone
A cargo handling crane, comprising: a gripping body that is provided so as to face the side surface of the load-bearing object and to move back and forth in and out of the gripping section.