JPH0222635Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a tunnel kiln cart structure that can efficiently load bare bricks.

[Prior art]

Conventionally, when firing refractory bricks in a tunnel kiln, the raw bricks are loaded on a trolley and fired.
The loading capacity per unit is naturally limited by the structure of the tunnel kiln. In other words, the firing unit of fired bricks is mainly influenced by (a) the structure of the tunnel kiln, (b) the firing temperature, and (c) the amount charged in the bogie.

Regarding the loading amount of carts, conventionally, as shown in FIG. 1, carts 1 are arranged in series in a tunnel kiln 2, and bricks 3 are loaded on the upper surface of the carts 1.
However, on the end of the truck 1, no bricks 3 are loaded, and there are gaps 4 at considerable intervals.

[Purpose of invention]

The present invention was devised focusing on the above points, and its purpose is to significantly improve the firing unit consumption by using the void 4 as a brick placement surface of the cart. Our objective is to provide a trolley structure for tunnel kilns.

[Structure of the idea]

The present invention is a tunnel kiln truck whose upper surface is a brick placement surface, and in which dowels are provided on both side walls at both ends of the truck in the running direction, and the dowels are connected to a fitting portion protruding from the side wall and a flange at the tip thereof. a sliding guide portion formed in a shape, and a recess that is fitted from above in the dowel between adjacent carts, and is restrained between the sliding guide portion and the side wall of the cart. It is characterized by a plate-thick connecting fitting that is removably attached.

With this configuration, two adjacent carts are connected by a connecting fitting, so the brick placement surfaces at the ends of the two carts can be used as a series of placement surfaces. In addition, since the connecting fitting is restrained between the flange-shaped sliding guide provided at the tip of the dowel and the side wall of the truck, the following truck can follow the rolling or yawing of the preceding truck. This makes it possible to absorb mutual oscillation of discontinuous brick placement surfaces. Therefore, even if bricks are placed on the boundary between the carts, they can be transported in a stable posture.

〔Example〕

Hereinafter, a detailed explanation will be given with reference to the embodiments shown in FIGS. 2 to 5.

In FIG. 2, reference numeral 11 is a truck that runs inside the tunnel kiln, and has wheels 13 that run on rails 12 at the bottom. Reference numeral 14 denotes connecting dowels protruding from the skirt iron plate 11a at the adjacent end of the truck 11, and each dowel 14 has a fitting portion 15 and a fitting portion 15, as shown in FIGS. 3 and 4. The sliding guide portion 16 has a larger area. Reference numeral 17 denotes a connecting fitting, and as shown in FIG. 5, the connecting fitting 17 has a rectangular plate shape and has a pair of fitting recesses 18 at its lower end. By engaging the recess 18 with the fitting part 15, adjacent ends of the cart 11 can be connected to each other, and a brick placement surface 19 is provided on the upper surface of the connected end of the cart 11. It is formed.

Next, talking about the firing operation using the carts 11 having the above configuration, the carts 11 are arranged in series, and the connecting fittings 17 are fitted into the connecting dowels 14 by falling into them, so that the carts 11 are reliably connected to each other. . Thereafter, the base bricks 20 are placed on the upper surface of the truck 11, not only on the central portion but also on the upper surface of the connecting ends, and then brought into a tunnel kiln and fired.

[Effect of idea]

As described above, in this invention, the top surface of the connecting part of the trolley can also be effectively used as a brick placement surface, so the number of bricks placed per firing operation can be increased, and the firing unit can be significantly improved. In addition, since the connecting fittings are restrained by the side walls of the cart, discontinuities in the brick placement surface can be suppressed due to shaking or twisting between the preceding and following carts, and the bricks can be transported in a stable manner. Furthermore, it can be attached to and detached from the dowel on the side wall of the trolley, so
After the firing operation, the connecting fittings can be removed from a distance using a rod-shaped jig or the like without having to approach the trolley, which also improves the safety of the operation.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing the coupling structure of the bogies in a conventional tunnel kiln, Fig. 2 is an explanatory diagram of the coupling structure of the bogies according to the present invention, Fig. 3 is an enlarged front view of the coupling dowel, and Fig. 4 is an explanatory diagram showing the coupling structure of the bogies in a conventional tunnel kiln. FIG. 3 is a view taken along the arrow line, and FIG. 5 is a perspective view of the connecting fitting. In the figure, 1: bogie, 2: tunnel kiln, 3: brick, 4: gap, 11: bogie, 12: rail, 1
3: Wheel, 14: Connection dowel, 15: Fitting part, 1
6: Sliding guide part, 17: Connecting metal fittings, 18: Recess,
19: Brick placement surface, 20: Brick.

Claims (1)

[Scope of utility model registration request] A cart for a tunnel kiln whose upper surface is a brick mounting surface, wherein dowels are provided on both side walls at both ends in the running direction of the cart, and the dowels are formed in the shape of a flange at a fitting portion protruding from the side wall and at its tip. and a sliding guide part, forming a recess that fits into the dowel between adjacent carts from above at the same time, and connecting the plate thickness to be restrained between the sliding guide part and the side wall of the cart. A tunnel kiln cart structure characterized by removably attached metal fittings.