JP2509517B2 - Steel sheet coil stacker crane - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a stacker for steel plate coils .
ー Regarding improvement of cranes .

[0002]

2. Description of the Related Art Conventional stacker for steel sheet coil
As a fork for laterally inserting coil holes used in a crane , as shown in FIG. 5, a horizontal position of the fork in a horizontal position that can be inserted from one lateral direction of the coil holes of the steel plate coil is integrally formed in a vertical position. A structure in which a mast is provided, the wheels provided below the mast are mounted on the horizontal guide rails of the carriage, and horizontal chains attached to the carriage are rotatably attached to both upper and lower sides of the mast, respectively. Has become. (For example, refer to Japanese Patent Laid-Open No. 4-333403) Such a fork has the following problems. That is, the problem (1): when the chain is stretched over time, the upper fastening portion 31 is pulled to the left and the lower fastening portion 32 is pulled to the right due to the amount of the extension, and the tongs are displaced. The fo
While the tip of the rake 33 is inclined downward,
The lower end of the steel plate coil tends to lower. Of such a phenomenon
Due to the occurrence, the height of the hangar is increased by the amount by which the steel plate coil descends.
Must be combined, thus affecting the height of the building.
There is a problem to do. In addition, even if the chain tensioning device 34 removes the slack, the inclination is not corrected. Problem (2): In order to repeat the reciprocating motion of a certain stroke, this chain does not spread all over even if it is lubricated in one place like a chain device that continuously rotates in one direction. No, you need to lubricate several places. Also, 1
When a coil having a temperature of 00 to 150 ° C. (the maximum coil temperature in an ordinary three-dimensional warehouse is about 150 ° C.) is handled, the radiant heat causes the fat to dry quickly, which requires frequent greasing. Furthermore, since it is exposed in the air, dust is likely to adhere to the chain, resulting in accelerated wear of the chain and sprocket and a short mechanical life.

An object of the present invention is to utilize a coil hole of a steel plate coil and fork in a horizontal posture from one lateral direction of the coil hole.
The purpose of the present invention is to provide a tongue capable of accommodating and discharging the steel plate coil by inserting the to support the steel plate coil and supporting and operating the mast having this fork with the screw shaft.

[0004]

Means for Solving the Problems The configuration of the present invention to solve the problems of the prior art, laying between warehouse of steel coil
Two towers parallel to each other on a trolley that runs on its own rail
Set up a pillar and guide the upper part of the tower pillar to the ceiling rail.
In addition, a winch mechanism is used to mount the carriage between the tower columns.
It is installed so that it can be raised and lowered by
The tongs are equipped so that they can turn, and the truck is installed between the three-dimensional warehouses.
Is driven by an external control action, and the steel plate is
A three-dimensional warehouse that received the coil with tongs and was instructed to do this.
Operated and stored in the hangar of the
Discharge the steel plate coil in the storage to the tongs and reach the loading position
Stacker Kre of steel plate coil designed to be paid out for operation
The carriage is pivotally mounted below the carriage.
With the downward U-shape attached, the steel plate coil
Of the horizontal position that can be inserted from one side of the coil hole on the
In a vertical position with the forks integrally formed in the middle, and in front
A mast with an inverted Y-shape is provided and the mast is
One car for each forked arm formed above the strike
The wheels are axially supported oppositely, and this wheel is supported by the center of the horizontal side of the frame.
Mounted and supported on a horizontal guide rail attached in the front-back direction of the section,
Corresponding to the weight of steel coil and tongs,
Between two parallel horizontal guide rails and both verticals that form the frame
Driven in the same direction on the inside of the lower end of the side in the same direction by the driving means.
A screw shaft that is moved and supports only the moment
It is installed parallel to the inner rail, and the screw shaft is mounted on the mast.
The tongue is screwed by screwing the ends and the lower bifurcated mast ends.
It is a composition.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, details of embodiments of the present invention will be described with reference to the drawings. 1 is a front view of a stacker using the tongs of the present invention, FIG. 2 is a partially cutaway front view of a tongue structure portion shown in an embodiment, FIG. 3 is a vertical side view of FIG. 2, and FIG. 4 is an explanatory view of the embodiment. Is.

The details of the embodiment will be described with reference to FIGS. 1, 2, 3 and 4. FIG. 1 shows a stacker A, and the stacker A is constructed as follows. Reference numeral 1 denotes a trolley which is self-propelled on a rail 2 laid between three-dimensional warehouses (not shown) by an external control, and two parallel tower columns 3 are erected on the trolley 1. The upper part of the pillar 3 is the ceiling rail 4
Is being guided by. And tongs B between both tower pillars 3
A carriage 5 in which is swiveled is provided so as to be able to move up and down by a winch mechanism 6 or the like. The stacker A is configured as described above, travels between the three-dimensional warehouses by an external control action, receives the steel plate coil 7 at a predetermined load position, and operates the stacker A to store it in the instructed storage of the three-dimensional warehouse. Alternatively, the operation is such that the designated steel plate coil 7 in the hangar is delivered by the tongs B and the operation delivery is delivered to the loading position.

Next, the structure of the tongue B will be described.
As shown in FIGS. 2 and 3, a frame 5 having a three-dimensional frame structure with a downward U shape attached to the lower part of the carriage 5 so as to be rotatable.
a fork 8 in a horizontal posture that can be inserted from a lateral direction on one side of the coil hole 7a of the steel plate coil 7 is integrally formed in the middle of
In addition, a vertical mast 9 having an inverted Y-shaped front is provided. That is, parallel the two also shaped arm 9a which is formed above the mast 9 is provided respectively one wheel 10 paired countercurrent manner, to attached the wheel 10 to the horizontal side central portion longitudinal direction of the frame 5a Mounted and supported on two horizontal guide rails 11
Configured to accommodate the own weight of il and tongs
It is. On the other hand, at the upper center of the mast 9 and at both ends of the lower bifurcated mast portion, the horizontal guide rails 11 are horizontally bridged between the horizontal guide rails 11 and on the inside of the lower ends of both vertical sides of the frame body 5a, and the length of the horizontal guide rail 11 is increased. lateral bridging Then Tomo along the axial direction
Then, the respective screw shafts 12, 13 corresponding to only the moment acting on the tongue B are screwed so as to be rotatable . That is,
The mast 9 has an upper end suspended by a wheel 10 so as to be smoothly moved back and forth on a horizontal guide rail 11, and can be moved in the front-back direction by three screw shafts 12 and 13. 14 is a drive motor, and the drive force of the drive motor 14 is the chain 15 and the sprocket 16
The driving force transmitted to the screw shaft 12 via the chain shaft 12, the sprocket 18, 1
It is also transmitted to the other screw shafts 13 via 9, 20 and the mast 9
Is moved back and forth. Reference numeral 21 in the figure is a dustproof cover.

[0008] As shown in FIG. 4, when the tongue B shown in the embodiment of this, R: reaction force f ₁ of the wheel 10: horizontal force of the upper screw shaft 12 f _2: the horizontal force of the lower screw shaft 13 Then,

[Equation 1] Further, the resistance F _E for moving the tongue B in the front-rear direction while receiving W is, if the rolling friction coefficient of the wheel 10 is μ ₁ and the resistance of the screw shaft is μ ₂ ,

[Equation 2] Becomes

According to the configuration of the present invention as described above, the following effects can be obtained. (A) On a rail laid between three-dimensional warehouses of steel coil
Two parallel pillars are erected on a self-propelled trolley,
Guide the upper part of the
Carriage can be moved up and down between tower columns by winch mechanism etc.
The tongs can be swung below the carriage.
It is equipped with the trolley between the three-dimensional warehouse by external control action.
The steel plate coil with the tongs B at the specified loading position.
Receive it and drive it to the hangar of the instructed three-dimensional warehouse.
Store or leave the steel carp in the indicated hangar.
To the tongs and deliver to the loading position.
Of course, (b) the conventional technique as a lateral moving device for a mast having a fork.
It does not use a chain and sprocket as in the art, but in a horizontal position , it corresponds only to the moment that acts on the tongs.
By using the screw shaft that, Shin found in chain beauty
Without causing an adverse effect of the prior art due to, Ru can be maintained for a long period of time of the original function. (C) As a lateral moving device for a fork , a chain and a sprocket are not used as in the prior art , and only a moment component is used .
For the use of the screw shaft in the horizontal position to respond and to maintain a constantly good lubrication state by greasing the nut
In addition to the action, it is possible to achieve a long service life. (D) The husband is attached to the bifurcated arm formed above the mast.
By providing each one wheel, steel plate coil and tongs
It can be configured so that it can handle only its own weight
Both moments during acceleration and deceleration due to the movement of the tongs
Even if occurs, the wheel pressure is
Since it does not fluctuate, it has a long life without applying excessive force to the bearing.
You can get a life.

[Brief description of drawings]

FIG. 1 is a front view of a stacker using a tongue of the present invention.

FIG. 2 is a partially cutaway front view of a tongue structure portion.

3 is a vertical side view of FIG.

FIG. 4 is an explanatory diagram of the embodiment.

FIG. 5 is a side view of a main part showing a conventional example.

[Explanation of symbols]

 1 bogie 2 rail 3 tower post 4 ceiling rail 5 carriage 5a frame 6 winch mechanism 7 steel plate coil 7a coil hole 8 fork 9 mast 9a arm 10 wheel 11 horizontal guide rail 12 screw shaft 13 screw shaft 14 drive motor 15 chain 16 sprocket 17 Chain 18 Sprocket 19 Sprocket 20 Sprocket 21 Dust cover

Continuation of the front page (56) References JP-A-4-333403 (JP, A) Seki 48-43387 (JP, U)

Claims (1)

(57) [Claims] 1. A stack of steel plate coils laid between three-dimensional warehouses.
Two parallel towers are erected on a bogie that is self-propelled
The upper part of the tower pillar can be guided by the ceiling rail.
The carriage between the towers by a winch mechanism or the like.
It is installed so that it can be lifted up and down, and a tongue is placed under the carriage.
It is equipped so that it can turn, and the trolley is externally controlled between the three-dimensional warehouses.
The steel plate coil is moved at the specified loading position
The hangar of the three-dimensional warehouse that received the tongs and was instructed to do this.
Drive to and store, or in the designated hangar
Delivery of steel sheet coils to tongs and operation delivery to the loading position
On a stacker crane with a steel plate coil
And a downward facing connector attached to the underside of the carriage so that it can rotate.
Inside the frame of the three-dimensional frame structure in the shape of a letter, of the coil hole of the steel plate coil
Horizontal fork that can be inserted from one side
It is a vertical posture that is integrally formed on the
The mast is placed and the shape is formed above the mast.
Each of the two-armed arms is made up of one wheel that is opposed to the other.
Support this wheel in the front-back direction of the center of the horizontal side of the frame.
It is mounted and supported on the attached horizontal guide rail, and the steel coil and
The parallel weight of the two parallel lines
Inside the lower ends of both vertical sides that form the frame and between the guide rails
Driven by the drive means in the same direction in the forward and reverse directions, and
The screw shaft corresponding to only the moment is parallel to the guide rail.
And the upper and lower parts 2 of the mast are attached to the screw shaft.
The tongue is formed by screwing the ends of the mast.
Steel plate coil stacker crane characterized by.