JPS604119B2 - Casting pot crane - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a crane for tilting a casting pot while suspending it.

To move the cast pot 3 with this kind of crane, the mirror pot 3 is lifted up with the cast pot hook 2, and then the auxiliary hook 5 is attached to the hanger 4 at the lower part of the coin pot.

In this way, the auxiliary hook 5 can be wound up. However, when attaching the auxiliary hook 5, the coin pot 3 generally has a large diameter at the top and a small diameter at the bottom, and the mirror steel hook 2 and the auxiliary hook 5
If the distance is fixed, the upper part of the money pot will get in the way and the auxiliary hook 5 will not be able to be attached.

Therefore, in order to easily attach the auxiliary hook 5, a rail 9 is installed on the subordinate trolley 1, and the wheels 8 are placed on the rail 9.
A sheave trolley 7 is disposed through the head sheave 6, and the head sheave 6 is supported by the sheave trolley 7. Then, the support 10 fixed on the trolley 1 and the sheave trolley 7 are connected by a traction device 11. Thus, by driving the traction device 11, the sheave trolley 7 travels on the rail 9 and the auxiliary hook 5 also moves, so that the auxiliary hook can be guided to the hook 4 at the lower part of the money pan without interfering with the upper part of the mirror pan. However, various devices are installed in the trolley 1 within a limited space, and arranging the above-mentioned devices is subject to size constraints, and the mechanism is complicated, leading to larger cranes and higher costs. be.

Furthermore, since the hooks of the auxiliary hooks are also used for other cargo handling, many structures are capable of freely swivelling, and skill is required to attach the freely movable auxiliary hooks 5 to the hangers 4.

In order to make it easier to attach the hook, there is a structure in which the hook is oriented in one direction, but this generally has the disadvantage of being complicated and prone to failure.
The present invention provides a device that has a simple and inexpensive structure, allows an auxiliary hook to be easily attached to the saddle at the bottom of the coin pot, and can also be used for general cargo handling, in place of the complicated, expensive, and rust-prone pot crane that has these drawbacks. The object of the present invention is to provide a key pot crane having the following features.

The present invention focuses on the fact that when the head sheave on which the rope 23 that suspends and supports the auxiliary hook is swung at a certain period, the auxiliary hook oscillates due to the pendulum action, and this oscillation is used to hang the lower part of the mirror pan. In order to guide the auxiliary hook to the tool, in the embodiment of the present invention, the hook of the auxiliary hook utilizes the difference in the center of gravity caused by its shape, and by tilting the copper with respect to the vertical plane in advance, it is always oriented in one direction. It is characterized by the following points.

An embodiment of the present invention will be described based on FIGS. 2, 3, and 4.

As shown in Figure 2, the head sheave 6 is attached to the pin 13 on the trolley 1.
The coin pan is attached to the coin pan via the Thief Hanger 12 so as to be swingable in three directions.

A hydraulic cylinder 14 is telescopically connected to the thief hanger 12 and the trolley. As shown in FIG.
a, and a bearing 21 is attached to this trunnion 16.
A structure is provided in which the brocade 15 is fixed with a nut 20 and the fishing rod 15 can be freely swiveled. A sheave 18 is rotatably fixed to the upper part of the side plate 17 by a shaft 19, and a fixing piece 22 fixed to the side plate 17 is applied to the trunnion 16 so as to make the trunnion 16 oblique to the vertical axis. The operation of this embodiment is as follows.

When the auxiliary hook 5 reaches near the upper end of the rust pot, the hydraulic cylinder 14 is expanded and contracted at a constant cycle, and the thief hanger 12 is also swung around the pin 13. This allows Thief Hanger 1
The head sheave 6 fixed to the head sheave 2 also swings. When the head sheave 6 swings, the auxiliary hook 5 swings in an attempt to maintain the center of gravity position. In this way, the rocking of the auxiliary hook 5 is controlled by the mirror pan 3.
When it becomes possible to pass through the upper part of the register, lower the auxiliary hook to the position where it is easiest to hang onto the register 4. On the other hand, since the hook 15 of the auxiliary hook 5 is attached with the trunnion 16 tilted in advance with respect to the vertical axis by a fixed piece fixed to the side plate 17, the shape of the hook 15 tries to maintain the position of the center of gravity of the hook 15 itself, and the hook is always attached. 15 can face the three directions of the mirror pan.

In this way, the auxiliary hook 5 can be easily attached to the hanger 4 by expanding and contracting the hydraulic cylinder 14 with the pot 15 facing the hanger 4 and winding it up while giving the auxiliary hook an appropriate swing.
There is no need for installation workers. Because of the fixing piece 22 fixed to the side plate 17, the copper 15 is tilted in advance with respect to the vertical axis.However, in normal cargo handling, the sheave 18 is rotatably fixed to the shaft 19, so it is difficult to Since the hook 5 swings and displaces in an attempt to maintain the center of gravity position, there is no problem of strain on the auxiliary hook 5. In addition, in order to stop the swinging of the auxiliary hook 5, it is sufficient to swing the head sheep 6 in the opposite direction to the swinging direction, and it is expected to be effective as a steady rest for a suspended load even in general cargo handling. be. As described above, according to the present invention, the auxiliary hook can be attached to the key pot without requiring a large space required for moving the sheave trolley on the trolley. This has the effect of providing a coin pot crane that can also be used.

[Brief explanation of drawings]

Figure 1 is an elevation view of the trolley part of a conventional rice pot crane, Figure 2
The figure is an elevation view of the trolley part of a mirror steel crane according to an embodiment of the present invention, Figure 3 is an enlarged elevation view of the auxiliary hook in Figure 2, and Figure 4 is a right side view of the hook part in Figure 3. It is. 1... Trolley, 2... Money pot hook, 3... Money pot, 4... Hanging tool, 5... Auxiliary hook, 6
...Head sheave, 7...Sheave trolley, 8...Wheel, 9...Rail, 10...Support, 1 1...Traction device, 12... Seebhanga,
13...pin, 14...hydraulic shilling, 15...brocade, 1
6...Trunion, 17...Side plate, 18...
...Sheave, 19...Shaft, 20...Nut,
21...Bearing, 22...Fixing piece. Oh figure 2 figure soup 3 figure age 4 figure

Claims (1)

[Claims] 1. In a crane that hooks up a casting pot with a casting pot hook suspended from a trolley and hooks the lower part of the casting pot with an auxiliary hook suspended from the trolley, a sheave hanger is connected to the trolley so as to be swingable in the direction of the casting pot. a head sheave is attached to the swinging portion of the sheave hanger, a rope is provided to be stretched between the head sheave and the auxiliary hook, a swing drive device is connected between the sheave hanger and the trolley, and the The auxiliary hook includes a sheave around which a rope is wound, a side plate supported by the sheave, a trunnion attached to the side plate, a hook attached to the trunnion horizontally rotatably, and fixed to the side plate. and a fixed piece applied to the trunnion so that the hook is in an inclined position toward the casting pot.