JPS5842779B2 - Rotating tundish loading device in continuous casting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotating tundish loading device for continuous casting equipment.

As shown in the conceptual diagram of FIG. 1, the conventionally known swiveling type tundish loading device has a swiveling track 2 laid around the outer circumference of a center post 1, and a swiveling trolley 4 is rotatably supported on this rail through wheels 3. At the same time, a support arm 4 whose upper end is rotatably supported on the inner circumferential surface of a support guide formed at the upper end of the center post 1 via a roller 5 and which extends in the lateral direction of the rotating carriage 4
The structure is such that a tundish 6 is loaded on a.

According to the tanditshu loading device configured in this way,
Due to the load of the kundish 5 and the weight of the support arm 4, an overturning moment about the wheels 3 acts on the rotating carriage 4, and a large bending moment acts on the center post supporting the upper end thereof.

To avoid this, conventional measures have been taken to increase the cross-sectional area of the center post and increase its tread, but this not only requires a vast installation area, but also requires the construction of the floor beams on which it is installed. must be made sturdy, which is extremely disadvantageous both economically and in terms of space.

This invention was proposed in order to address the above-mentioned conventional problems, and its purpose is to reduce the bending moment acting on the center post as much as possible, as well as to increase the space around the equipment, and to reduce the bending moment acting on the center post. The aim is to improve the operability of the

Next, an explanation will be given with reference to the embodiment shown in FIGS. 2 and 3. 1 is a center post, 7 is a trunnion ring rotatably fitted to the upper end of the center post via a bush 8, and 9 is an ear of the trunnion ring. A four-end movably fitted to the shaft 7' via a bush 10.

Reference numeral 11 denotes a tanditshu loading truck, which is formed into a T-shape in side view, and its legs are rotatably supported via wheels 3 on a turning track 2 laid around the outer circumference of the center post 1.

Further, the upper end of the loading cart 11 is formed into a fork shape to serve as a tundish support arm, on which the tundish 6 is loaded and the bush 12 fitted to the base end.
The connecting shaft 13 is inserted through the fork end 9 and connected to the fork end 9.

Note that 14 is a wheel drive device, 15 is an emergency pot, and 16 is an emergency pot.

Since the present invention is configured as described above, the tundish loading truck 11 is subjected to an overturning moment with the swing rail 2 as a fulcrum due to the weight of the tundish support arm portion of the loading truck and the load of the tundish 6, but the force is the connecting shaft 13 and the fork end 9. The moment is transmitted to the center post 1 via the trunnion ring 7 and is released by the bushing 8 supporting the trunnion ring 7 in the ear axis direction.

Therefore, a load acts on the center post 1 only in its axial direction.

Furthermore, the moment applied in the direction perpendicular to the ear shaft axis direction caused by thermal strain deformation of the tanditsh loading truck 11 and unevenness of the turning track 2 is not transmitted to the center post 1 due to slippage between the connecting shaft 13 and the bushing 9.

Furthermore, the centrifugal force due to the rotation of the tanditshu loading platform 11 can be almost ignored because the rotation speed is extremely low.

Therefore, according to the present invention, the force acting on the center post 1 is
The force is almost only in the axial direction, and when determining the cross-sectional area of the center post, there is no need to consider bending force as in the past, and the cross-sectional area can be reduced, reducing the cost itself and the center post. It is possible to reduce equipment costs, etc. by simplifying the floor beam assembly that fixes the floor.

In addition, the reduction in the cross-sectional area of the center post allows for extra space on the operating floor, which is extremely effective in terms of safety, and allows for the installation of emergency pots 16, etc. in case of molten steel overflow, if necessary. There are some advantages.

[Brief explanation of drawings]

FIG. 1 is a conceptual diagram of a conventional tundish loading device, and FIGS. 2 and 3 show the device according to the present invention, with FIG. 2 being a side view and FIG. 3 being a plan view. 1...Center post, 2...Tandish, 7...Trunion ring, 7'...
... Ear shaft, 8, 10°12 ... Bush, 9.
...Fork end, 11 ... Tanditshu loading truck, 13 ... Connection shaft.

Claims (1)

[Claims] 1. A fork end is supported on the ear shaft of the trunnion ring fitted to the upper end of the center post, and the fork end and the tandish support arm formed at the upper end of the tandish loading truck are connected by a connecting shaft, and the ear shaft axis is 1. A rotating tundish loading device for continuous casting equipment, characterized in that the force acting on the direction and the axis perpendicular to the axis is absorbed by shaft sliding parts provided on each axis.