JPS623382Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a replacement cart used to quickly replace a stopper that prevents slag from flowing out of a molten metal spout in a converter or the like.

In order to attach a stopper, which is conventionally used as a slag cutting device for converters, etc., to a stopper support arm that is configured to move freely inside and outside the converter, a crane or the like for suspending the stopper must be installed within the radius of rotation of the stopper support arm. The installation is carried out using this crane. However, transporting the stopper from its storage location to the converter, suspending it from a crane, and attaching it to the stopper support arm takes too much effort, and the weight of the stopper is large when suspending it from the transport vehicle to the crane. Another problem is that it requires a lot of effort. Furthermore, nowadays, the condition of stoppers after use is often inspected to research the material, and rather than removing used stoppers from the arm and leaving them there, they are temporarily placed in a designated controlled area for inspection. There is also a tendency to store
There is a need for a device that allows a stopper to be easily attached to, removed from, and transported from a stopper support arm.

This idea was devised with the above points in mind.
Its purpose is to transport stoppers and store used stoppers, and to allow the transported stoppers to be easily attached to the stopper support arm, which is arranged inside and outside the converter and forms part of the slag cutting device. The purpose of the present invention is to provide a stopper exchange trolley configured as follows.

The present invention provides a stopper exchange trolley, characterized in that a stopper suspension crane having a swingable crane arm is erected on the trolley, and at least one stopper storage cylindrical body is provided on the trolley. This is related.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a detailed explanation will be given based on an embodiment shown in the accompanying drawings. FIGS. 1 to 3 show a stopper exchange cart according to the present invention. A required number of freely rotating wheels 2 are attached to the bottom side of the trolley 1, and the trolley 1 has a handle 3 erected on one side.
It can be moved freely by pushing it with your hand. Reference numeral 4 denotes a stopper suspension crane that is similarly set up on the trolley 1, and the crane has a support 5a of a required length fixed at its base end to the side where the handle 3 of the trolley 1 is attached, and swings to the upper side of the support 5a. It consists of a crane arm 5b made of shaped steel that can be freely attached, and a manual winch 7 that is attached so that it can run along the arm via rollers 6. Reference numeral 8 denotes stopper storage cylinders (hereinafter referred to as "storage cylinders") that are installed upright on the trolley 1, and in this embodiment, two of them are arranged side by side.
The cylindrical body is formed to be divisible into halves, and the half wall 8a can be opened and closed via a hinge 9, so that the inside of the storage cylinder 8 can be opened. Also, 10 is pin 11
This is a locking part that connects the two halves together. At the lower part of the inside of the storage cylinder 8, there is a hydraulic cylinder 13 equipped with a pressure receiving body 12 at its telescopic end, which supports and places the tip of the stopper S.
is arranged on the trolley 1 with an attachment part, and this hydraulic cylinder 13 constitutes a hydraulic circuit equipped with a hose and various hydraulic valves, etc., and is connected to a hydraulic pump 14 installed on the side where the handle 3 of the trolley 1 is attached. It is connected.
Reference numeral 15 denotes a foot pedal for operating the hydraulic pump 14. When the pedal is depressed, the cylinder rod 13a of the hydraulic cylinder 13 is extended or retracted by the hydraulic circuit, and the pressure receiving body 12 can freely move inside the housing cylinder 8. Can go up and down. Reference numeral 16 denotes a fall prevention distraction body with a jack 17 attached to its tip that can be raised and lowered by a handle. Sometimes it is arranged along the side wall of the trolley 1 as shown by the dashed line in FIG. If the bottom surface is in contact with the floor surface, the base supporting the trolley 1 will become larger, so the crane 4
The crane arm 5b will not fall over even if the crane arm 5b performs turning work.

To replace a stopper using the above stopper replacement cart, first bring the cart 1 to the stopper storage position, and store a new stopper to be attached to the stopper support arm of the slag cutting device in either one of the storage cylinders 8. do. This accommodation work is carried out by rotating the arm 5b of the crane 4 and using the main drive winch 7.
This is done by suspending and rotating the stopper and bringing it into the storage cylinder 8. To describe this more specifically, first of all, there is a fourth section on the top of the stopper S.
As shown in the figure, a pin insertion hole H is provided through the pin insertion hole H in the diametrical direction, and by passing the required pin P through this insertion hole H and hanging it on the hook F of the winch 7 via the wire rope W, the stopper S can be suspended. I do. In this embodiment, the half wall 8a of the storage cylinder 8 can be opened and closed, so if the stopper S is inserted from the open part of the half wall 8a, the stopper S will be slightly above the top surface of the cart 1. It is only necessary to lift it until it is in position, and there is an advantage that the amount of hoisting by the winch 7 is small and the storage work can be easily performed. Next, half wall 8
If a is closed and the locking part 10 is connected with the pin 11, the stopper S is supported at the lower end by the pressure receiving body 12 and is stably accommodated in the housing cylinder 8 without being tilted by the cylinder wall. be able to.

In the above state, the cart 1 is brought into the vicinity of the converter and within the stopper support arm rotation area of the slag cutting device, and the used stopper is placed in one of the storage cylinders 8.
The used stopper was recovered by operating the stopper support arm position of the slag cutting device so that it was directly above the trolley 1, and by moving the trolley 1 appropriately, the half body wall 8a of the used stopper was opened in the same manner as described above. When the stopper is housed from the side and the connection between the stopper and the stopper support arm of the slag cutting device is released, the stopper is housed in the housing cylinder 8. Another new stoppa S
To attach the stopper to the arm, place the stopper mounting part of the arm almost directly above the storage cylinder 8 that houses the stopper S, and then step on the pedal 15 and raise the stopper S sequentially by operating the hydraulic cylinder 13. Then, when the upper end of the stopper S reaches the attachment part of the arm, the arm and the stopper S may be connected by a necessary means.

As mentioned above, the used stoppers are stored in the cart 1 that has been replaced, and when dumping them to a desired location, the winch 7 is used to rotate the suspension arm 5b. This completes a series of stopper replacement operations.

In addition, although two storage cylinders 8 were provided in this embodiment,
If the used stopper is to be dropped directly from the arm of the slag cutting device, one may be provided to store a new stopper. Moreover, if two or more stoppers are provided and only one storage cylinder is emptied and all new stoppers are stored in the other cylinders, it is possible to save labor by eliminating the need to move the cart between the converter and the stopper storage position. In addition, if the storage cylinder 8 is installed so as to lie on the trolley 1 as shown in FIG. 5, and the upper half is configured to be openable and closable, the stopper S can be slid and stored from the pallet storing the stopper, and the stopper S can be stored. It can also be easily removed from the cylinder. Further, this horizontal storage cylinder may be provided with a cylinder or the like so that when a new stopper is attached to the slug cutter, it will be in a vertical position with respect to the truck as in this embodiment.

Further, the horizontally placed storage cylinder is rotatably supported on the cart by a trunnion shaft, etc., and raised by a winch 7, and a locking device is provided to securely hold the cylinder when the cylinder is raised. Good too.

As described above, according to the present invention, the stopper can be easily replaced.

[Brief explanation of the drawing]

Fig. 1 is a front view of the stopper exchange cart according to the present invention, Fig. 2 is a side view of the same, Fig. 3 is a plan view of the same, and Fig. 4 is a front view of the stopper exchange cart according to the present invention.
The figure is a front view showing a method of suspending the stopper on a hook, and FIG. 5 is a perspective view when the storage cylinder is placed horizontally on a cart. 1... Trolley, 4... Stoppa suspension support crane,
5b... Crane arm, 8... Stopper storage cylinder.

Claims (1)

[Scope of utility model registration request] A stopper exchange trolley, characterized in that a stopper suspension crane having a swingable crane arm is erected on the trolley, and at least one stopper storage cylinder is further provided on the trolley.