JPH0986633A - Beam of walking beam type carrier - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To reduce the initial cost in constructing a walking beam type conveying device, and to reduce the heat loss of the conveyed material due to the heat conduction of the walking beam to improve the heating efficiency. SOLUTION: Receiving portions 24 of a material 16 to be conveyed are provided on the upper surface of a movable beam 14 at a predetermined pitch along the longitudinal direction. The receiving portion 24 includes the first block 18 that directly supports the lower surface of the transported material 16, and the first block 1 in the longitudinal direction.
8 and a pair of tall second blocks 22 arranged so as to form a predetermined space 20. Here, the second block 22 is narrower than the first block 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beam of a walking beam type conveying device, and more particularly to a beam having a receiving portion for a conveyed material.

[0002]

2. Description of the Related Art When heating a cast slab, a steel slab, etc., a walking beam type conveying device is provided in a heating furnace, and the material to be heated is sequentially transferred from the furnace inlet to the furnace outlet by the walking beam type conveying device. It is carried out such that it is heated while being transported. For example, when rolling a continuously cast slab, prior to this, the slab is placed in a heating furnace and heated while being conveyed by a walking beam type conveying device.

Here, the walking beam type conveying device is composed of a combination of a fixed beam and a movable beam, and a material to be heated (material to be conveyed) placed on the fixed beam is lifted by raising and moving the movable beam. While moving forward, the material to be conveyed is placed on the fixed beam by the descending motion of the movable beam again, and then the movable beam descending below the fixed beam returns to the initial position again. As a result, the material to be conveyed is
Forwards intermittently by pitch.

In the conventional walking beam type transfer device, continuous rails 100 having a uniform width in the front and rear (longitudinal direction) are provided on the upper surfaces of the fixed beam and the movable beam as shown in FIG. This rail 100
In addition, arcuate recesses (when the material 104 to be conveyed has a circular cross section) 102 are formed at a predetermined pitch in the front-rear direction, and the material to be transported 104 is received in the recesses 102.

[0005]

However, in the conventional walking beam type transfer device, the rail 10 is used.
There is a problem in that the material cost required for 0 and the processing cost for forming the concave portion 102 are high, and the material to be conveyed (material to be heated)
There is a problem that heat loss is large due to heat conduction from the rail 100 that is in direct contact with the rail 104, resulting in poor thermal efficiency.

[0006]

The invention of the present application has been made to solve such a problem. Thus, the invention of the present application is a beam of a walking beam type transporting device, wherein receiving portions of the transported material are provided on the upper surface thereof at a predetermined pitch along the longitudinal direction, and these receiving portions are provided on the transported material of the transported material. A first block supporting the lower surface, and a first block that is separated from the first block and is arranged in front of and behind the first block in a state of forming a predetermined space between the first block and the first block. And a pair of second blocks forming a storage space under the transported material together with the first block having a high height (claim 1).

According to another invention of the present application, in claim 1, the material to be conveyed has a circular cross section or a hexagonal or more polygonal shape, and is partially downward on the upper surface of the first block. It is characterized in that a recess is formed (claim 2).

Still another invention of the present application is that in claim 1 or 2, the width of the second block in the direction perpendicular to the longitudinal direction is narrower than the width of the first block. (Claim 3).

[0009]

As described above, according to the invention of claim 1, the first block for directly supporting the lower surface of the material to be conveyed with the receiving portion on the upper surface of the beam, and the front and rear portions of the first block and the back of the first block. It is composed of a pair of high second blocks, a plurality of these are provided at a predetermined pitch in the front-rear direction, and in the present invention,
The material to be conveyed can be favorably received while being prevented from rolling in the concave portion formed by the first block and the second block.

Thus, in the present invention, since the predetermined space is formed between the first block and the second block, the material cost can be reduced only by the space portion, and the space portion can be reduced. In the above, since the heat loss of the material to be conveyed due to heat conduction is small, the heating efficiency is also improved.

Further, in the present invention, since the contact area of the receiving portion with respect to the material to be conveyed is small, the amount of processing is small even when forming the concave portion having a shape corresponding to the shape of the material to be conveyed. The cost will also be low.

In some cases, it is possible to omit the processing for forming the recess. In the present invention, since the first block and the second block form the concave portion for preventing the transported material from rolling, the concave portion is not intentionally formed in the receiving portion, and this can be omitted. Of.

Further, when the receiving portion is constructed according to the present invention,
The size of the concave portion can be given a margin with respect to the thickness of the material to be conveyed, and since there is a step between the first block and the second block forming the concave portion, the material to be conveyed may be slightly different. Even if the bend occurs, the conveyed material can be firmly held in the concave portion, and therefore the pitch deviation of the conveyed material can be prevented.

According to the second aspect of the present invention, the first block for directly supporting the lower surface of the material to be transported is provided with a downward recessed portion partially on the upper surface thereof. According to the present invention, the transported material can be transported more stably. You can receive materials.

According to the third aspect of the invention, the width of the pair of second blocks arranged before and after the first block is narrower than the width of the first block. These second blocks do not directly support the lower surface of the material to be conveyed, but form a recess together with the first block to prevent rolling,
Therefore, it is not necessary to make the width wide like the first block, and by making the second block narrow,
The material cost required for the receiving portion can be reduced.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings. In FIG. 2, reference numeral 10 denotes a walking beam type transfer device equipped in a heating furnace, and a pair of fixed beams 12 and a movable beam 12 are provided at positions on both sides of a material to be heated (material to be transferred) 16 to be transferred. A beam 14 is provided. In this example, the material 16 to be conveyed is a cast piece having a circular cross section (diameter: 350 mmφ).

On the upper surfaces of the fixed beam 12 and the movable beam 14, there are provided a first block 18 that directly supports the lower surface of the material 16 to be transported, and a pair of second blocks 22 in front of and behind it (in the longitudinal direction). The receiving portion 24 for the material 16 to be conveyed is configured by these. Thus, the fixed beam 12 and the movable beam 14 are provided with a large number of such receiving portions 24 at a predetermined pitch in the front-rear direction.

In the receiving portion 24, the pair of second blocks 22 are narrower than the first block 18. Also, as shown in FIG. 1, the second block 22
Is said to be taller than the first block 18,
The first block 18 and the second block 22 form a recess 26 that accommodates the lower portion of the transported material 16. Further, in this example, as shown in FIG. 1, on the upper surface of the first block 18, an arc-shaped concave portion 28 having a curvature corresponding to the outer peripheral surface shape of the transported material 16 is formed.

This walking beam type transfer device 10
Is the upward movement, forward movement, and downward movement of the movable beam 14,
By the backward movement, the conveyed material 16 on the fixed beam 12 is advanced by one pitch, and by repeating the circulation movement, the conveyed material 16 is advanced by one pitch.
A cooling water passage is formed inside the fixed beam 12 and the movable beam 14.

As described above, in this example, the first block 18 that directly supports the lower surface of the material 16 to be conveyed on the upper surfaces of the fixed beam 12 and the movable beam 14, and the front and rear of the first block 18 are taller than the first block 18. A pair of second blocks 22 are provided and the receiving portion 24 is configured by these, and the receiving portion 2
4, the conveyed material 16 can be favorably received while being prevented from rolling.

Further, in this example, since the predetermined space 20 is formed between the first block 18 and the second block 22, the material cost can be reduced only by the space portion, and the space portion can be reduced. In the above, since the heat loss of the material 16 to be conveyed due to heat conduction is small, the heating efficiency is also improved.

Further, in the present example, the material 1 to be conveyed of the receiving portion 24
Since the contact area with respect to 6 is small, the processing amount in the receiving portion 24 can be small, and the processing cost is low.

Further, in this example, there is a step between the first block 18 and the second block 22 in the receiving portion 24,
Further, since the shape of the concave portion 26 does not exactly correspond to the cross-sectional shape of the material 16 to be conveyed, the material 16 to be conveyed can be firmly held in the receiving portion 24 even if the material 16 to be conveyed is slightly bent. Therefore, it is possible to favorably prevent the pitch deviation of the transported material 16 due to the detachment of the transported material 16 from the receiving portion 24.

Since the width of the second block 22 is narrow, the material cost required for the receiving portion 24 can be reduced.

Although the embodiment of the present invention has been described in detail above, this is merely an example. For example, as shown in FIG. 3 (A), the upper surface of the first block 30 may be a flat surface like the upper surface of the second block 22, which also prevents the material 16 to be rolled from rolling. The receiving portion 24 can receive it satisfactorily.

Further, as shown in FIG. 3B, the first block 32 is divided into two divided bodies 32A to form the space 20 therebetween, or the divided bodies 32A are formed.
It is also possible to form arcuate curved surfaces on the inner surfaces of the two.

In addition, according to the present invention, it may be applied only to a movable beam in a walking beam type conveying device, or when conveying a hexagonal or more polygonal conveyed material. The present invention can be configured in a form in which various changes are made without departing from the spirit of the present invention.

[Brief description of drawings]

FIG. 1 is an enlarged view of a main part of a walking beam type transfer device according to an embodiment of the present invention.

FIG. 2 is a diagram showing a planar configuration of the walking beam type transport device and a configuration of a main part thereof.

FIG. 3 is an enlarged view of a main part of another embodiment of the present invention.

FIG. 4 is an enlarged view of a main part of a conventional walking beam type transportation device.

[Explanation of symbols]

 10 Walking Beam Type Transfer Device 12 Fixed Beam 14 Movable Beam 16 Material to be Transferred 18, 30, 32 First Block 20 Space 22 Second Block 24 Receiving Part 26 Recessed Part 28 Recessed Part

Claims (3)

[Claims] 1. A beam of a walking beam type conveying device, wherein receiving portions of a conveyed material are provided on an upper surface thereof at a predetermined pitch along a longitudinal direction, and these receiving portions support a lower surface of the conveyed material. And a first block that is separated from the first block, and is arranged in a state of forming a predetermined space between the first block and the first block, and is taller than the first block. A beam of a walking beam type transporting device, characterized in that it is configured to include a pair of second blocks that form an accommodation space under the transported material together with the first block. 2. The material according to claim 1, wherein the material to be conveyed has a circular cross section or a hexagonal or more polygonal shape, and a downward concave portion is partially formed on the upper surface of the first block. The beam of the walking beam type carrier, which is characterized in that 3. The walking beam type transport according to claim 1, wherein a width of the second block in a direction perpendicular to the longitudinal direction is narrower than a width of the first block. Beam of equipment.