CN203292181U

CN203292181U - Steel rolling roller

Info

Publication number: CN203292181U
Application number: CN2013202527212U
Authority: CN
Inventors: 徐永震
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-05-11
Filing date: 2013-05-11
Publication date: 2013-11-20
Anticipated expiration: 2023-05-11

Abstract

The utility model discloses a steel rolling roller, which comprises a roller shaft, a pressurization nut, a bearing, a pressurization gasket, a roller sleeve, a pressure bolt hole and a pressure bolt. The roller shaft is in the form of a conical shaft and is divided into two parts, namely an upper part and a lower part. The upper end of the upper part of the roller shaft is provided with zigzag threads. The lower end of the lower part of the roller shaft is provided with a shaft shoulder. The inner surface of the roller sleeve is in the form of a conical surface. The upper end surface of the roller sleeve is in the form of an annular inclined surface, and the lower end surface of the roller sleeve is in the form of a plane. The upper end surface of the pressurization gasket is in the form of a plane, and the lower end surface of the pressurization gasket is in the form of an annular inclined surface. Zigzag threads on the pressurization nut are threadedly matched with zigzag threads on the thin end of the roller shaft. The bearing is of an up-and-down split type structure and is arranged between the pressurization gasket and the pressurization nut. According to the technical scheme of the utility model, by means of the steel rolling roller, the steel rolling strength, the steel rolling rigidity, the anti-stripping property and the wear resistance are greatly improved. Meanwhile, the production and application cost of the roller is reduced. Therefore, the application of existing rollers is more economical.

Description

A kind of steel rolling roll

Technical field

The utility model belongs to rolling mill equipment, relates to a kind of steel rolling roll, belongs to the roll technology field in the rolling mill technology.

Background technology

In rolling mill equipment, roll very easily damages, and is main expendable part.Domestic and international existing roll, adopt whole cast steel roll and grain roll mostly at present.Grain roll is compared with cast steel roll, and its wearability is better, but intensity is poor, easily roll breakage.In order to improve roller surface hardness, applied in recent years the centrifugal casting technique of roll, the roll surface of centrifugal casting roll and roll centre adopt respectively the metal casting of heterogeneity, in the hope of the unification of roller surface hardness and roll barrel intensity.Because the manufacturing cost of this roll is high, the disposable reasons such as significant wastage that cause material of scrapping of old roller, the application of centrifugal roller is extremely restricted.Subsequently, composite (back-up) roll has appearred, assembly roller is to a certain degree solving the problems such as waste of material, and assembly roller adopts the antifriction alloy roller shell, roll campaign has improved a lot, but the connecting mode of its roll shaft and roller shell adopts key connecting or welding manner more, in actual production, collapses cover, rolls the accidents such as key and frequently occur.

For the problem that occurs in the assembly roller practical application, on February 19th, 1997, the disclosed a kind of high-energy assembly roller of China Patent No. CN1142993A, overcome current assembly roller the deficiencies in the prior art, well solved in the assembly roller use procedure and collapsed cover, the problem of peeling off.It is mainly to have introduced a kind of to be the effective working position input of benchmark breaker roll energy according to pressure rolling power in manufacturing and assembling process, to make it improve to greatest extent the high-energy roll of intensity, rigidity, anti-strip and wearability.But through factual survey, this high-energy roll rarely has application aborning, because there is following shortcoming in it: the assembly manipulation process of the roller shell of this high-energy assembly roller and roll shaft is complicated; The unloading difficulty of roller shell is large; Assembling and unloading all will rely on the special hydraulic test of product design for this reason, because the hydraulic test of the whole series makes production cost significantly raise; In this high-energy assembly roller course of work, because of Long-term Vibration, roller shell deformation (energy) while reducing, must be unloaded roll to ressemble, and wastes time and energy; Easily cause the scratch of roll shaft outer surface and roll sleeve inner surface during the roll sleeve unloading, greatly shortened the service life of roll shaft.

The utility model provides a kind of steel rolling roll, in the intensity that has improved to greatest extent roll, rigidity, anti-strip and wearability, well solved the problem that exists in above-mentioned patent, strengthened practicality, economy, the reliability of this assembly roller, be applied to actual production for assembly roller and have important impetus.

Summary of the invention

The utility model, for the deficiencies in the prior art, provides a kind of steel rolling roll.

A kind of steel rolling roll, be comprised of roll roll shaft, pressurizing nut, bearing, pressure gasket, roll sleeve, pressure bolt hole, pressure bolt.

Described roll roll shaft is diminished shaft, the roll roll shaft is divided into up and down two parts, upper end in the first half of roll roll shaft is processed with saw-tooth thread, in the lower end of the latter half of roll roll shaft, is processed with a shaft shoulder, and the surrounding of the shaft shoulder is evenly distributed with four pressure bolts hole.

The inner surface of described roll sleeve is taper surface, and the upper surface of roll sleeve is annular slope, and lower surface is plane, roll sleeve with the engage sleeves of less interference on the roll roll shaft.

The upper surface of described pressure gasket is plane, and lower surface is annular slope, and pressure gasket is arranged on the roll roll shaft, and is that annular slope contacts between the upper surface of the lower surface of pressure gasket and roll sleeve.

The inboard of described pressurizing nut is processed with saw-tooth thread, and pressurizing nut is arranged on the roll roll shaft, and the saw-tooth thread of the saw-tooth thread on pressurizing nut and roll roll shaft taper end is that screw thread is joined, and the surrounding of pressurizing nut is evenly distributed with four pressure bolts hole.

Described pressure bolt one has eight, be arranged on respectively in four pressure bolts hole on pressurizing nut and the shaft shoulder of roll roll shaft on four pressure bolts hole in.

Described bearing is up and down opposite opened structure, and bearing is arranged on the roll roll shaft and between pressure gasket and pressurizing nut.

The beneficial effects of the utility model: a kind of steel rolling roll that the utility model proposes, greatly improved intensity, rigidity, anti-strip and the wearability of roll, reduced roll produce and application in cost, make the application of existing roll have more economy.

Description of drawings

Fig. 1 is a kind of structure chart of steel rolling roll.

1, roll roll shaft 2, pressurizing nut 3, bearing 4, pressure gasket 5, roll sleeve 6, the shaft shoulder 7, pressure bolt hole 8, pressure bolt.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing

As shown in Figure 1, a kind of steel rolling roll, comprise roll roll shaft 1, pressurizing nut 2, up and down split box 3, pressure gasket 4, roll sleeve 5, the shaft shoulder 6, pressure bolt hole 7, pressure bolt 8.

As shown in Figure 1, roll roll shaft 1 is diminished shaft, and roll roll shaft 1 is divided into up and down two parts, in the upper end of the first half of roll roll shaft 1, is processed with saw-tooth thread, lower end in the latter half of roll roll shaft 1 is processed with a shaft shoulder 6, and the surrounding of the shaft shoulder 6 is evenly distributed with four pressure bolts hole 7.

As shown in Figure 1, the inner surface of roll sleeve 5 is taper surfaces, and the upper surface of roll sleeve 5 is annular slopes, and lower surface is plane, roll sleeve 5 with the engage sleeves of less interference on roll roll shaft 1.

The upper surface of pressure gasket 4 is planes as shown in Figure 1, and lower surface is annular slope, and pressure gasket 4 is arranged on the roll roll shaft, and is that annular slope contacts between the upper surface of the lower surface of pressure gasket 4 and roll sleeve 5.

The inboard of pressurizing nut 2 is processed with saw-tooth thread as shown in Figure 1, pressurizing nut 2 is arranged on roll roller bearing 1, the saw-tooth thread of the saw-tooth thread on pressurizing nut 2 and roll roll shaft 1 the first half is threaded engagement, and the surrounding of pressurizing nut 2 is evenly distributed with four pressure bolts hole 7.

Pressure bolt 8 one has eight as shown in Figure 1, be arranged on respectively in four pressure bolts hole 7 on pressurizing nut 2 and the shaft shoulder 6 of roll roll shaft on six pressure bolts hole 7 in.

Bearing 3 is up and down opposite opened structures as shown in Figure 1, and bearing 3 is arranged on the roll roll shaft and between pressure gasket 4 and pressurizing nut 2.

Claims

1. steel rolling roll, it is characterized in that: by the roll roll shaft, pressurizing nut, bearing, pressure gasket, roll sleeve, the pressure bolt hole, the pressure bolt forms, described roll roll shaft is diminished shaft, the roll roll shaft is divided into up and down two parts, upper end in the first half of roll roll shaft is processed with saw-tooth thread, lower end in the latter half of roll roll shaft is processed with a shaft shoulder, the surrounding of the shaft shoulder is evenly distributed with four pressure bolts hole, the inner surface of described roll sleeve is taper surface, the upper surface of roll sleeve is annular slope, lower surface is plane, the upper surface of described pressure gasket is plane, lower surface is annular slope, pressure gasket is arranged on the roll roll shaft, that annular slope contacts between the lower surface of pressure gasket and the upper surface of roll sleeve, the inboard of described pressurizing nut is processed with saw-tooth thread, pressurizing nut is arranged on the roll roll shaft, the saw-tooth thread of the saw-tooth thread on pressurizing nut and roll roll shaft taper end is that screw thread is joined, the surrounding of pressurizing nut is evenly distributed with four pressure bolts hole.