JPH032855Y2 - - Google Patents

Description

[Detailed description of the invention] Currently, the mainstream method is to use a sublance to measure and sample molten metal during the refining process of steelmaking. As is well known, in the sub-lance method, a measurement object is attached to the lower end of a long, water-cooled sub-lance body, and the measurement and sample collection are carried out by moving the sub-lance body up and down into the furnace. The sub-lance main body is long and fixed at a single point on the upper part, and because it moves up and down at high speed, the lower part of the tip vibrates. Therefore, it is necessary to guide the lower part of the tip of the sub-lance to prevent vibration. Methods of guiding the tip include the use of counterweights or special drive devices, as is known in the art.

The purpose of the present invention is to provide a small trolley that guides the lower part of the sub-lance body according to the position of the elevating trolley and raises and lowers it without using a counterweight or special drive device to guide the sub-lance body. be.

For a more detailed explanation, the apparatus of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view showing the position of the device when the lifting cart 3 is at the upper limit position.

FIG. 2 is a side view in which the lifting cart 3 has been lowered and the support rod 7 of the device is positioned on the fixed support base 8 of the lifting guide rail 1.

FIG. 3 is a side view showing that the lifting cart 3 has further descended and is in the measurement state above the apparatus.

FIG. 4 is an enlarged front view of the upper part of FIG.

FIG. 5 is a sectional view taken along line A-A in FIG. 4.

FIG. 6 is an explanatory view (partially enlarged view) of a support member for a suspension cable for a small truck.

The present invention is an apparatus in which a sub-lance for measurement and sample collection is installed on an elevating cart movable along a vertical guide rail. One end of the cable that suspends the truck is engaged with a support rod, and the support rod is mounted on the lifting truck or a fixed support provided on the lifting guide rail at any time. The suspension cable of the small truck is formed to be guided by a support member composed of an upper guide tube that is engaged with the upper guide tube, an intermediate guide tube that is fixed to the lifting guide rail, and a lower guide tube that is engaged with the small truck. This is a sublance guide device that is characterized by the following.

In the present invention, as shown in FIGS. 1, 2, and 3, a stopper 2 is installed at the lower end of an elevating guide rail 1, an elevating cart 3 moves along the elevating guide rail 1, and a sublance body 12 is moved up and down. It is fixed to the trolley 3. (13 indicates a cable for raising and lowering the elevating cart 3.) Here, the small guiding cart 4, which is the device of the present invention, guides the lower part of the sub-lance main body 12, and the small guiding cart 4 has a suspension cable. The upper end of the cable 6 is engaged with a support rod 7. The support rod 7 is mounted on the support stand 11 of the lifting cart 3 up to a certain height. That is, the lifting guide rail 1 has
A fixed support base 8 is formed, and the support rod 7 is replaced on this fixed support base 8 when the lifting carriage 3 passes through this fixed support base 8. Next, the suspension cable 6 of the guide trolley 4 is protected by a support member 14 and supported so as not to vibrate. To explain the structure of the support member 14, the upper guide tube 10 is fixed to the support rod 7, the intermediate guide tube 5 is fixed to the elevating guide rail 1, and the lower guide tube 9 is fixed to the small guide trolley 4. The guide tube 10 and the lower guide tube 9 are respectively inserted into the intermediate guide tube 5 and are configured to be expandable and retractable.

In the above configuration, when the sub-lance body is to be lowered for the purpose of in-furnace measurement, the support rod 7 mounted on the lifting cart 3 synchronizes the small guide cart 4 with the lifting cart 3 via the cable 6. and descend.

Next, when descending to the state shown in FIG. 2, the support rod 7 is stopped by the support stand 8 fixed to the elevating guide rail 1. At this time, the small guide trolley 4 is stopped near the position of the lower end stop bar 2 of the elevating guide rail 1.

FIG. 3 shows a state in which the elevating cart 3 is further lowered to measure the inside of the furnace, but the small guide cart 4 remains positioned above the stopper 2 at this time.

Note that the cable 6 is protected by the lower guide tube 9 attached to the small guide truck 4 when the lifting truck 3 is located at the lower part. After the measurement and sample collection are completed, the lifting cart 3 rises and reaches the position of the support stand 8, whereupon the support rod 7 is pulled up by the support stand 11 fixed to the upper surface of the lifting cart 3. At this time, the guide trolley 4 is simultaneously pulled up via the cable 6. During these ascents and descents, as mentioned above, the lower guide tube 5 is fixed to the ascent/descent guide rail 1, so that the cable 6 does not interfere with other devices.

In addition, the cable 6 is also placed above the support base 8.
is protected by an upper guide tube 10. For things other than the cable 6, a chain or the like can be used. The cable means a wire rope, and its charm lies in its elasticity.If the small guide cart 4 is supported by another stopper 2 at the lowest position, the small guide cart 4 is supported by another stopper 2.
It can reduce the impact of hitting. Furthermore, since the wire rope is loosened when the support rod 7 is pulled up, the impact is reduced.

It is clear that the principles described above are applicable irrespective of the specific construction of the sub-lance, lifting carriage and guide rail. As to the construction of this new apparatus, it is not important what type of furnace is required or what type of suction hood is required over it. Furthermore, other than steelmaking furnaces, other types of furnaces that can be equipped with sublance can also be considered.

As described above, by using the device of the present invention, the sublance body can be moved up and down into the steelmaking furnace reliably and smoothly, and excellent effects can be brought about. It also provides a useful device that can achieve significant cost reductions without using any other drive devices.

[Brief explanation of the drawing]

Fig. 1 is a side view of the device of the present invention when the elevating cart is at the upper limit position, and Fig. 2 is a side view of the device of the present invention when the elevating cart is lowered and the support rod of the device of the present invention is positioned on the fixed support base of the elevating guide rail. , FIG. 3 is a side view of the measurement state when the elevating cart is further lowered, FIG. 4 is a partially enlarged front view of FIG. 1, and FIG. FIG. 6 is an explanatory diagram of a support member for a suspension cable for a small truck in the device of the present invention. 1 is an elevating guide rail, 2 is a stopper, 3 is an elevating cart, 4 is a small guide cart, 5 is an intermediate guide tube, 6 is a cable, 7 is a support rod, 8 is a support stand, 9
10 is a lower guide tube, 10 is an upper guide tube, 11 is a support base, 12 is a sub-lance main body, 13 is a cable for lifting and lowering the lifting cart, and 14 is a support member.

Claims (1)

[Scope of Claim for Utility Model Registration] In an apparatus in which a sub-lance for measurement and sample collection is installed on an elevating cart that is movable along a vertical guide rail, a small cart that guides the lower part of the sub-lance body is attached to the guide rail. At the same time, one end of the cable for suspending the small truck is engaged with a support rod, and the support rod is mounted on the lifting truck or a fixed support provided on the lifting guide rail at any time. , further comprising an upper guide tube engaged with the support rod;
A sublance guide, characterized in that the suspension cable of the small truck is guided by a support member constituted by an intermediate guide tube fixed to a lifting guide rail and a lower guide tube engaged with the small truck. Device.