CN201339053Y - Furnace roller - Google Patents

Abstract

The utility model discloses a novel furnace roller which is composed of a roller body, shaft necks and roller shafts. The novel furnace roller is characterized in that the shaft necks are welded at the two ends of the roller body, the roller shafts are respectively sheathed on the shaft necks at the two ends, and air holes are respectively arranged on the shaft necks. As the three-segment type processing is adopted, the difficulty in casting and gold processing is lowered, and the process redundancy of blanks is reduced, thereby decreasing the production cost and shortening the production period; meanwhile, the internal cleaning of the furnace roller is convenient, impurities such as burrs, sands and the like do not exist at the inner part of the furnace roller for sure, and the air holes cannot be blocked in the using process of the furnace roller; moreover, heat preservation and insulation materials can be added to internal cavities of the roller body and the shaft necks, so as to lower the air temperature in the internal cavities. The furnace roller is widely applied on various steel furnaces for conveying steel billets.

Description

A kind of furnace rolls

Technical field:

The utility model relates to the roller-way that transports steel billet in a kind of heater for rolling steel in the equipment, particularly process furnace.

Background technology:

At present, in the walking beam furnace at home and abroad, going into stove and coming out of the stove of blank generally all adopts roller-way to take on steel, steel billet is sent in the stove by the dress steel rider road in the stove, by walking beam steel billet is delivered to from the loading end stepping in the stove of discharge end on the tapping roller-way, finish the heat-processed of steel billet simultaneously, then it is sent process furnace and be rolled by tapping roller-way in the stove.Furnace rolls in the market is made up of the body of roll and roll shaft, described roll shaft is installed in the two ends of the body of roll, adopt the furnace rolls of this structure to have following shortcoming: 1. because the size of roller-way is long, bring many difficult problems for the casting body of roll,, must when casting, increase the metalworking surplus of the body of roll for right alignment and the body surface quality that guarantees the two ends roll shaft, cause blank material to increase so on the one hand, and increase metal cutting processing, and the production cycle increases, and manufacturing cost improves; Temperature is higher in use owing to the body of roll on the other hand, causes the interior gas of the body of roll to expand rapidly, makes the body of roll distortion occur, must on the body of roll, have breather hole for this reason, the body of roll inside of this structure can't be cleaned out, and causes stopping up breather hole easily, has influenced the work-ing life of furnace rolls.2. because the longer dimension of the body of roll must adopt large-scale processing units to satisfy the demand of producing.

The utility model content:

The purpose of this utility model is to provide a kind of furnace rolls of novel texture, and the body of roll adopts sectional type to weld, and has reduced the difficulty of casting and metalworking.

The utility model is achieved in that a kind of furnace rolls, form by the body of roll, axle journal and roll shaft, it is characterized in that: described body of roll two ends are welded with described axle journal, respectively are set with roll shaft on the axle journal at described two ends, and a breather hole is respectively arranged on described axle journal.

The utility model compared with prior art has following advantage:

1. owing to adopt syllogic to process, reduce the difficulty of casting and metalworking, reduced the process redundancy of blank simultaneously, so just reduced production cost of products and process-cycle.

2. owing to adopt syllogic to process, so just make things convenient for the cleaning of its inside, guarantee that inside does not have impurity such as burr and folder sand, can not stop up gas-permeable channels in the product use.

3. adopt syllogic to process, can the gas temperature in its internal cavities be descended, reduce the influence of gas expansion the body of roll and axle journal at the body of roll and the inner heat preserving and insulating material that adds of axle journal.

4. when metalworking, need not to adopt large-scale processing units, further reduce production cost of products.

Description of drawings:

Fig. 1 is the structural representation of a kind of furnace rolls described in the utility model

1. roll shaft 2. axle journals 3. breather holes 4. bodies of roll

Embodiment:

As can be seen from Figure 1 a kind of furnace rolls, form by the body of roll 4, axle journal 2 and roll shaft 1, it is characterized in that: the described body of roll 4 two ends are welded with described axle journal 2, respectively are set with roll shaft 1 on the axle journal 2 at described two ends, and a breather hole 3 is respectively arranged on described axle journal 2.

The described body of roll 4 and axle journal 2 carry out metalworking earlier, weld then, have so just reduced the casting and the difficulty of processing of the body of roll 4 and roll neck 2, have reduced production cost of products.

Can add heat preserving and insulating material at the internal cavities of the body of roll 4 and axle journal 2 simultaneously, the gas temperature in its internal cavities is descended.

Claims (1)

1. furnace rolls, form by the body of roll (4), axle journal (2) and roll shaft (1), it is characterized in that: the described body of roll (4) two ends are welded with described axle journal (2), respectively are set with roll shaft (1) on the axle journal (2) at described two ends, and a breather hole (3) is respectively arranged on described axle journal (2).

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