CN204898045U

CN204898045U - Combination sinking roller

Info

Publication number: CN204898045U
Application number: CN201520485259.XU
Authority: CN
Inventors: 孙京钢; 陈佃双; 曾强国
Original assignee: YANTAI DEVELOPMENT ZONE BLUE WHALES METAL Co Ltd
Current assignee: YANTAI DEVELOPMENT ZONE BLUE WHALES METAL Co Ltd
Priority date: 2015-07-07
Filing date: 2015-07-07
Publication date: 2015-12-23
Anticipated expiration: 2025-07-07

Abstract

The utility model relates to a combination sinking roller for the galvanizing line, the support ring install in the roller core both ends, the pottery body of roll is the hollow cylinder nestification and is in the roller core outside is supported by the support ring, a serial communication port, pottery body of roll both ends respectively are equipped with an annular cutting plane, relative its the central axis of annular cutting plane is 30-70, at least one side of support ring is equipped with annular cutting plane equally, and this annular cutting plane is laminated with the annular cutting facial features of the ceramic body of roll. The utility model provides a sinking roller support ring is 30-70 contained angle with ceramic working face for rigidity contact, the center pin of contact surface and roller core, when taking place the thermal energy, takes place along the inclined plane to slide, can not take place the variation of stresses, and its working face is complete ceramic material, and hardness is high, thickness is big, has good wearability and corrosion resistance.

Description

A kind of combination sinking roller

Technical field

The utility model relates to a kind of sinking roller, particularly relates to a kind of steel-ceramic combination sinking roller.

Background technology

At present, known zinc-plated sinking roller is the roller adopting 316L stainless steel to make, and owing to suffering the corrosion of zinc liquid, sinking roller runs 6-8 days, and just need to be serviced, each maintenance cost is higher.Surface spraying ceramic coating is mostly adopted to protect to this.But because sprayed coating is thinner, void content is high, easily come off, cannot fundamentally change roll surface performance.

Chinese utility model patent CN203174186U discloses a kind of anticorrosive, high abrasion sinking roller, comprise columniform roll body and be connected to the roll shaft at roll body two ends, roll body comprises the radial alloy sheath, sintering metal cover, the sealing of hole oxidant layer that distribute successively from inside to outside.Although can improve in solidity to corrosion, fail to solve because the different STRESS VARIATION problem caused of the thermal expansivity of material.

Chinese invention patent CN103350877A discloses a kind of steel and ceramic combination roller, by steel liner, flexible materials packing layer, pottery working face three part composition, flexible packing material between steel liner and ceramic working face plays both connections and makes up the two breathing amount change that temperature variation causes, and makes steel liner and ceramic working face keep being connected and not because of the ceramic working face of temperature variation spalling.Although solve part breathing problem, when the temperature difference becomes large, breathing quantitative change greatly still can spalling.And because interlayer flexibly connects, tolerance range during operation can not be guaranteed.

Utility model content

The utility model, for the deficiency in existing sinking roller use procedure, provides a kind of combination sinking roller.

The technical scheme that the utility model solves the problems of the technologies described above is as follows:

A kind of combination sinking roller, comprise roller core, support ring, the ceramic body of roll, described support ring is installed on described roller core two ends, the described ceramic body of roll is that hollow cylindrical to be nested in outside described roller core and to be supported by support ring, it is characterized in that, described ceramic body of roll two ends are respectively provided with an annular cut surface, and described annular cut surface relatively its central axis tilts 30 ~ 70 °, the at least side of described support ring is provided with annular cut surface equally, and the annular cut surface of this annular cut surface and the ceramic body of roll fits.

The beneficial effects of the utility model are:

1) support ring and ceramic working face are rigid contact, the central shaft of contact surface and roller core is the angle of 30 ° ~ 70 °, when there is thermal expansion, slide along inclined-plane, STRESS VARIATION can not be there is, no matter be thus at high temperature or under normal temperature, ceramic working face and support ring are all rigid contact.

2) its working face of sinking roller that the utility model provides is full ceramic material, and hardness is high, thickness is large, has good wear resistance and solidity to corrosion.

On the basis of technique scheme, the utility model can also do following improvement.

Further, described roller core and support ring are made up of high temperature steel.

The beneficial effect of above-mentioned further technical scheme is adopted to be that the thermotolerance of combination roller is better, and pottery causes the problem of spalling with STRESS VARIATION when better can solve thermal expansion that coordinates of high temperature steel.

Further, described support ring surface spraying has ceramic coating.

The beneficial effect of above-mentioned further technical scheme is adopted to be further improve the erosion resistance of sinking roller.

Further, the described ceramic body of roll is by MgO, Al ₂o ₃, ZrO ₂, SiO ₂, BN, B ₄c, SiC, Si ₃n ₄, silicate, one or more materials boratory make.

Accompanying drawing explanation

Fig. 1 is each integral part structural representation of the utility model sinking roller;

Fig. 2 is the utility model sinking roller structural representation;

In Fig. 1 and Fig. 2,1, roller core; 2, support ring; 3, the ceramic body of roll; 4, annular cut surface; 5, annular cut surface

Embodiment

Be described principle of the present utility model and feature below in conjunction with example, example, only for explaining the utility model, is not intended to limit scope of the present utility model.

Embodiment 1:

As shown in Figure 1, a kind of combination sinking roller, comprise roller core 1, support ring 2, the ceramic body of roll 3, support ring 2 is installed on roller core two ends, and the ceramic body of roll 3 is in hollow cylinder, and being nested in outside described roller core 1 and being supported by support ring 2, the ceramic body of roll is by Si ₃n ₄make, thickness is 80mm, roller core 1 and support ring 2 are made by 316L stainless steel, the pottery body of roll 3 two ends are respectively provided with an annular cut surface 4, annular cut surface 4 its central axis relative is 30 °, the side of support ring is provided with annular cut surface 5 equally, this annular cut surface 5 suits mutually with the annular cut surface 4 of the ceramic body of roll, the contact surface of the two is rigid contact, and the central shaft of the relative roller core 1 of contact surface is 30 °, roller core 1 external diameter car has screw thread, support ring 2 center car has internal thread, support ring 2 and roller core 1 are connected by corresponding screw thread and are supported between roller core and the ceramic body of roll 3.

Embodiment 2:

As shown in Figure 1, a kind of combination sinking roller, comprise roller core 1, support ring 2, the ceramic body of roll 3, support ring 2 is installed on roller core two ends by buckle, and the ceramic body of roll 3 is in hollow cylinder, and being nested in outside described roller core 1 and being supported by support ring 2, ceramic working face is by Al ₂o ₃make, pottery work face thickness is 5mm, roller core 1 and support ring 2 are made by 316L stainless steel, the pottery body of roll 3 two ends are respectively provided with an annular cut surface 4, annular cut surface 4 its central axis relative is 30 °, the side of support ring is provided with annular cut surface 5 equally, this annular cut surface 5 suits mutually with the annular cut surface 4 of the ceramic body of roll, the contact surface of the two is rigid contact, and the central shaft of the relative roller core 1 of contact surface is 50 °, support ring 2 is rigid contact with the contact surface of ceramic working face 3, and the central shaft of the relative roller core 1 of contact surface is 50 °.

Embodiment 3:

As shown in Figure 1, a kind of combination sinking roller, comprise roller core 1, support ring 2, the pottery body of roll 3, support ring 2 is welded in roller core 1 two ends, the pottery body of roll 3 is in hollow cylinder, to be nested in outside described roller core 1 and to be supported by support ring 2, the pottery body of roll 3 is made up of SiC, the pottery body of roll 3 thickness is 40mm, roller core 1 and support ring 2 are made by 316L stainless steel, the pottery body of roll 3 two ends are respectively provided with an annular cut surface 4, annular cut surface 4 its central axis relative is 30 °, the side of support ring is provided with annular cut surface 5 equally, this annular cut surface 5 suits mutually with the annular cut surface 4 of the ceramic body of roll, the contact surface of the two is rigid contact, and the central shaft of the relative roller core 1 of contact surface is 70 °, support ring 2 is rigid contact with the contact surface of ceramic working face 3, and the central shaft of the relative roller core 1 of contact surface is 70 °.

The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims

1. a combination sinking roller, comprise roller core (1), support ring (2), the pottery body of roll (3), described support ring (2) is installed on described roller core (1) two ends, the described ceramic body of roll (3) is nested in described roller core (1) outside and is supported by support ring (2) in hollow cylindrical, it is characterized in that, the described ceramic body of roll (3) two ends are respectively provided with an annular cut surface (4), described annular cut surface (4) relatively its central axis is tilted 30 ~ 70 °, the at least side of described support ring (2) is provided with annular cut surface (5) equally, this annular cut surface (5) fits with the annular cut surface (4) of the ceramic body of roll.

2. one combination sinking roller according to claim 1, it is characterized in that, described roller core (1) and support ring (2) are made up of high temperature steel.

3. one combination sinking roller according to claim 1 and 2, it is characterized in that, described support ring (2) surface spraying has ceramic coating.

4. one combination sinking roller according to claim 1 and 2, it is characterized in that, the thickness of described ceramic working face (3) is 5-80mm.