CN212645329U

CN212645329U - Novel furnace roller

Info

Publication number: CN212645329U
Application number: CN202021086480.5U
Authority: CN
Inventors: 朱敏; 陈刚; 孔键
Original assignee: Jiangsu Kinuo Fumace Roller Co ltd
Current assignee: Jiangsu Kinuo Fumace Roller Co ltd
Priority date: 2020-06-13
Filing date: 2020-06-13
Publication date: 2021-03-02
Anticipated expiration: 2030-06-13

Abstract

The utility model provides a novel stove roller, includes roller, axle journal, spindle nose, its characterized in that: shaft necks are welded at two ends of the roller, a shaft head A and a shaft head B are welded at the other end of each shaft neck, a plurality of exhaust holes are formed in the conical surface of each shaft neck, and heat shielding devices are welded on the end surfaces of the shaft head A and the shaft head B in the shaft neck holes respectively; the heat shield device is provided with a supporting rod, the supporting rod penetrates through a first heat shield plate and a third heat shield plate to be arranged in an inner end face hole of the spindle nose A or the spindle nose B and welded, and a plurality of second heat shield plates are evenly distributed on the outer ring of the first heat shield plate. The heat shield device of the utility model prevents the heat in the furnace from radiating to the shaft head, and prolongs the service life of the bearing; the shaft neck is provided with a plurality of exhaust holes for exhausting and sucking air when the air in the roller expands with heat and contracts with cold, thereby effectively overcoming the defect of deformation of the roller caused by expansion with heat and contraction with cold, prolonging the service life of the furnace roller, reducing the waste of materials and reducing the maintenance cost and the labor intensity of workers.

Description

Novel furnace roller

Technical Field

The utility model relates to a steel rolling machinery technical field especially relates to a novel furnace roller.

Background

In metallurgical industrial furnace at home and abroad, the income stove of blank and the roll table transport that all adopts of coming out of the stove generally, accomplish the heating of steel billet, then carry the steel billet out of the industrial furnace by the tapping roll table in the stove and roll, at present, the stove roller on the market comprises the roller, the roll neck, the spindle nose, in order to practice thrift the cost, and guarantee the mechanical properties of stove roller, therefore stove roller, the roll neck material has all used high alloy heat-resistant steel, the spindle nose adopts the alloy structure steel, the roll neck welding is on the spindle nose, the welding of roller both ends is on two roll necks, two spindle noses pass the furnace body and pass through bearing and bearing frame support. In actual use, however, the furnace roller is in a high-temperature glowing environment for a long time, the service life of the bearing is short, gas in the roller expands due to heating, thermal stress is generated due to expansion, and cracks are easy to occur in a welding seam for a long time, so that the bearing capacity of the furnace roller is reduced, even the welding seam is broken, the service life of the furnace roller is seriously influenced, material waste is caused, and the maintenance cost and the labor intensity of workers are increased.

Disclosure of Invention

The utility model aims at solving the technical problem and providing a novel furnace roller.

In order to realize the technical purpose, reach foretell technical requirement, the utility model discloses the technical scheme who adopts is:

the utility model provides a novel stove roller, includes roller, axle journal, spindle nose, its characterized in that: shaft necks are welded at two ends of the roller, a shaft head A and a shaft head B are welded at the other end of each shaft neck, a plurality of exhaust holes are formed in the conical surface of each shaft neck, and heat shielding devices are welded on the end surfaces of the shaft head A and the shaft head B in the shaft neck holes respectively; the heat shield device is provided with a supporting rod, the supporting rod penetrates through a first heat shield plate and a third heat shield plate to be arranged in an inner end face hole of the spindle nose A or the spindle nose B and welded, and a plurality of second heat shield plates are evenly distributed on the outer ring of the first heat shield plate.

Preferably: the inner end of the second heat shield plate is connected with the first heat shield plate in a welding mode, the outer ends of a plurality of second heat shield plates in the second heat shield plates are welded with the inner arm of the journal, and the outer ends of a plurality of second heat shield plates in the second heat shield plates are in contact with the journal but are not welded.

Preferably: the support rod is one or a plurality of, and the support rod is connected with the first heat shield plate and the third heat shield plate in a welding mode.

Preferably: the first heat shield plate is provided in a circular shape.

Preferably: the third heat shield plate is provided in a circular shape.

Preferably: the second heat shield plate sets up to the slice, and second heat shield plate is provided with the plane with first heat shield plate welding department, and the department of contacting mutually with axle journal inner arm is provided with the inclined plane of laminating mutually with the axle journal, and the centre is the changeover portion.

Preferably: the roller is of a hollow structure.

The utility model has the advantages that; the heat shield device prevents heat in the furnace from radiating to the shaft head, and the service life of the bearing is prolonged; the shaft neck is provided with a plurality of exhaust holes for exhausting and sucking air when the air in the roller expands with heat and contracts with cold, thereby effectively overcoming the defect of deformation of the roller caused by expansion with heat and contraction with cold, prolonging the service life of the furnace roller, reducing the waste of materials and reducing the maintenance cost and the labor intensity of workers.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the heat shield of FIG. 1;

FIG. 3 is a top view of the heat shield apparatus of FIG. 1;

in the figure: 1. roller, 2 journal, 3 axle head A, 4 axle head B, 5 heat shield device, 51 support bar, 52 first heat shield plate, 53 second heat shield plate, 54 third heat shield plate, 6 exhaust hole.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

With reference to the accompanying drawings: the utility model provides a novel stove roller, includes roller 1, axle journal 2, spindle nose, its characterized in that: two ends of the roller 1 are welded with shaft necks 2, the other ends of the shaft necks 2 are respectively welded with a shaft head A3 and a shaft head B4, the conical surface of each shaft neck 2 is provided with a plurality of exhaust holes 6, and the end surfaces of the shaft head A3 and the shaft head B4 in each hole of each shaft neck 2 are respectively welded with a heat shielding device 5; the heat shield 5 is provided with a support rod 51, the support rod 51 is arranged in an inner end surface hole of the axle head A3 or the axle head B4 through the first heat shield plate 52 and the third heat shield plate 54 and is welded, and a plurality of second heat shield plates 53 are tightly and uniformly distributed on the outer ring of the first heat shield plate 52. The inner ends of the second heat shielding plates 53 are connected with the first heat shielding plates 52 by welding, the outer ends of a plurality of second heat shielding plates 53 in the second heat shielding plates 53 are welded with the inner arm of the journal 2, and the outer ends of a plurality of second heat shielding plates 53 in the second heat shielding plates 53 are in contact with the journal 2 but are not welded. The number of the support rods 51 is one or more, and the connection mode of the support rods 51 with the first heat shield plate 52 and the third heat shield plate 54 is welding. The first heat shield plate 52 is provided in a circular shape. The third heat shield plate 54 is provided in a circular shape. The second heat shield plate 53 is arranged in a sheet shape, the welding position of the second heat shield plate 53 and the first heat shield plate 52 is provided with a plane, the contact position of the second heat shield plate 53 and the inner arm of the journal 2 is provided with an inclined plane jointed with the journal 2, and the middle part is a transition section. The roller 1 is of a hollow structure.

In specific implementation, the shaft head of the furnace roller is arranged outside the furnace, and the heat shield device in the shaft neck prevents the heat in the furnace from radiating to the shaft head, so that the service life of a bearing on the shaft head is prolonged; during the axle journal casting, there are a plurality of exhaust holes at the casting of conical surface main aspects to exhaust heat dissipation after the high-temperature gas thermal energy in the roller has reduced the production of thermal stress, also has the clearance simultaneously between second heat shield 53 outer end and the second heat shield outer end in the heat shield assembly, is used for exhaust heat dissipation to reduce the production of thermal stress, consequently the difficult crackle that appears of welding seam on the stove roller has prolonged the life of stove roller.

The above embodiments of the present invention are only examples for clearly illustrating the present invention, but not for limiting the scope of the present invention, and all equivalent technical solutions also belong to the scope of the present invention, and the scope of the present invention should be defined by the claims.

Claims

1. The utility model provides a novel stove roller, includes roller (1), axle journal (2), spindle nose, its characterized in that: shaft necks (2) are welded at two ends of the roller (1), shaft heads A (3) and shaft heads B (4) are welded at the other ends of the shaft necks (2) respectively, a plurality of exhaust holes (6) are formed in the conical surface of each shaft neck (2), and heat shielding devices (5) are welded on the end surfaces of the shaft heads A (3) and the shaft heads B (4) in the holes of the shaft necks (2) respectively; the heat shield device (5) is provided with a supporting rod (51), the supporting rod (51) penetrates through a first heat shield plate (52) and a third heat shield plate (54) to be arranged in an inner end face hole of the shaft head A (3) or the shaft head B (4) and welded, and a plurality of second heat shield plates (53) are tightly and uniformly distributed on the outer ring of the first heat shield plate (52).

2. The novel furnace roller as claimed in claim 1, wherein: the inner ends of the second heat shielding plates (53) are connected with the first heat shielding plates (52) in a welding mode, the outer ends of a plurality of second heat shielding plates (53) in the second heat shielding plates (53) are welded with the inner arm of the journal (2), and the outer ends of a plurality of second heat shielding plates (53) in the second heat shielding plates (53) are in contact with the journal (2) but are not welded.

3. The novel furnace roller as claimed in claim 1, wherein: the support rod (51) is one or more, and the support rod (51) is connected with the first heat shield plate (52) and the third heat shield plate (54) in a welding mode.

4. The novel furnace roller as claimed in claim 1 or 2, wherein: the first heat shield plate (52) is provided in a circular shape.

5. The novel furnace roller as claimed in claim 1 or 2, wherein: the third heat shield plate (54) is provided in a circular shape.

6. The novel furnace roller as claimed in claim 1 or 2, wherein: second heat shield plate (53) set up to the slice, and second heat shield plate (53) and first heat shield plate (52) welding department are provided with the plane, and the department of contacting mutually with axle journal (2) inner arm is provided with the inclined plane of laminating mutually with axle journal (2), and the centre is the changeover portion.

7. The novel furnace roller as claimed in claim 1, wherein: the roller (1) is of a hollow structure.