CN205496271U

CN205496271U - Antiskid roll

Info

Publication number: CN205496271U
Application number: CN201520839794.0U
Authority: CN
Inventors: 张友银; 余铁; 郑云; 何登贵; 杨安林; 罗击; 张中平
Original assignee: Pangang Group Panzhihua Steel and Vanadium Co Ltd
Current assignee: Pangang Group Panzhihua Steel and Vanadium Co Ltd
Priority date: 2015-10-27
Filing date: 2015-10-27
Publication date: 2016-08-24
Anticipated expiration: 2025-10-27

Abstract

The utility model discloses an antiskid roll relates to steel rolling equipment field, and it is lower to provide a cost, can avoid the roughing mill to trade rolling problem of skidding of working roll initial stage and the lasting roll of effect. Antiskid roll includes the roll surface, is provided with helical shape antiskid recess on the roll surface, and the tank bottom of anti -skidding recess is the arc. The quantity of antiskid recess recommends be two, two anti -skidding recesses soon to on the contrary. The antiskid recess can improve the coefficient of friction of roll surface, prevents that the slab from skidding, simultaneously anti -skidding recess be the spiral, and the slab slip direction has certain slope relatively, can provide with slab slip opposite direction's power, prevent further that the slab from skidding.

Description

Anti-skidding roll

Technical field

This utility model relates to steel rolling equipment field, particularly relates to a kind of anti-skidding roll.

Background technology

Roll plate roughing mills to be often made up of vertical mill and four roller reversible roughing mills, four roller reversible roughing mills Inside there are two backing rolls and two working rolls, generally there is skidding when rolling between working roll and slab, It is heavier that the performance of some milling trains gentlier has, and changes initial stage skidding at working roll the most prominent, traces it to its cause Analyze, common belief is that newly change jobs roller frictional force not, edger roll do not mates with horizontal roller speed Cause etc. factor.

For solving the difficult problem skidded between rough rolling working roll and slab, many producers are by exploring and exchanging, in work Make roller and change initial stage reduction mill speed, uniformly scald roller and roll surface wearing, build up speed again after roll surface is coarse and roll System, the as-rolled condition ensureing the whole roll change cycle with this, achieve preferable effect, its shortcoming is to change jobs Roller initial stage mill speed is limited, rhythm slow, when there is control deviation, rolls in the whole work roll changing cycle State processed is poor with template, production has some setbacks.

Ye You producer roll change initial stage not reduction of speed, uses laser roughening roll surface and machine on turning texturing roll surface, improves Made-up belt rolling slippage problems, there is limitation in this kind of measure, on turning texturing roller, machine rolls about ten polylith steel, Skidproof effect is deteriorated, and roll surface machining accuracy is turning rank, processing the most coarse machining accuracy of roll surface is the poorest (can Wedge shape roll gap can occur)；Using the roll surface of laser roughening technical finesse, upper machine skidproof effect is ideal, but Professional technique and particular device need to be had to do laser treatment, and processing charges is higher, every each laser capillary of working roll The expense changed is more than 8,000 yuan, and roll surface material be there are certain requirements by laser capillary roll simultaneously, at present, and laser Processing the technology relative maturity of half steel rider, the technology of laser treatment high chrome roller belongs to the exploratory stage and (is easily generated full Roll surface crackle).

Utility model content

The technical problems to be solved in the utility model is: provide a kind of cost relatively low, it is possible to avoid roughing mill to change Working roll initial stage rolling slippage problems and the lasting roll of effect.

The technical scheme is that anti-skidding roll includes roll surface for solving the problems referred to above, roll surface is provided with spiral shell The antiskid groove of rotation shape, the bottom land of antiskid groove is arc.

Further: the quantity of antiskid groove is two, two antiskid grooves is oppositely oriented.

The beneficial effects of the utility model are: (1) improves rolling condition, solve roughing mill and change jobs at the beginning of roller Phase rolling slippage problems；

(2) cost efficiency, spiral antiskid groove turning i.e. can be made into, relative laser texturing roll surface cost Relatively low, and use conventional process equipment can be prepared by.

(3) relative to reducing the turning texturing roll surface that obtains of turning accuracy, roll surface precision is higher and skidproof effect More longlasting.

Accompanying drawing explanation

Fig. 1 is the anti-skidding roll with an antiskid groove；

Fig. 2 is the anti-skidding roll with two antiskid grooves；

Fig. 3 is antiskid groove sectional view；

Figure is labeled as: roll surface 1, antiskid groove 2.

Detailed description of the invention

With detailed description of the invention, this utility model is further illustrated below in conjunction with the accompanying drawings.

Anti-skidding roll includes roll surface 1, and roll surface 1 is provided with spiral antiskid groove 2, antiskid groove 2 Bottom land is arc.

Antiskid groove 2 can improve the coefficient of friction of roll surface 1, prevents slab from skidding；Antiskid groove 2 simultaneously For spiral type, relative slab glide direction has certain inclination, using the teaching of the invention it is possible to provide contrary with slab glide direction Power, prevent slab from skidding further.The bottom land of antiskid groove 2 is arc it can be avoided that stress is concentrated, and carries The life-span of high roll.

The quantity of antiskid groove 2 can be one.The relative slab glide direction of antiskid groove 2 has certain Tilting, be also provided that the power being perpendicular to the slab direction of motion, this power can make slab have the trend of sideslip.But roll Roller uses in pairs, and two roller rotationals are in opposite direction, and what two rolls provided is perpendicular to the slab direction of motion Force direction is contrary, cancels out each other, and slab will not break away the most in theory.But under the conditions of some, two rolls The power being perpendicular to the slab direction of motion provided may vary in size, and slab still has the risk of sideslip, in order to keep away Exempting from this risk, the quantity of antiskid groove 2 is two, two antiskid grooves 2 oppositely oriented.Same roll surface 1 Two antiskid grooves 2 provide and be perpendicular to the slab direction of motion and power in opposite direction, it is to avoid slab breaks away. Meanwhile, antiskid groove 2 increasing number, the coefficient of friction of roll surface 1 and sliding with slab of offer also can be provided Power in opposite direction.Obviously, the quantity of antiskid groove 2 can also be more, the rotation direction of multiple antiskid grooves 2 Can be the most identical, it is also possible to adhere to two rotation directions separately.

The shape of roll surface 1 can be common cylinder；Can also be that dextrorotation curve revolves around roll surface 1 centrage Circle the curved surface of middle part nick formed, and this roll surface 1 can make slab possess the ability of certain automatic centering.

Processing technique of the present utility model is as follows:

(1) preparation of roll surface processing conditions.Possess CNC roll grinder and the processing screw thread of camber grinding The numerically controlled lathe of ability.

(2) grinding roll surface 1, makes roll surface 1 wear into dextrorotation curve roll surface or plain-barreled roll face, the roll surface 1 of nick degree Rounding off everywhere, makes not produce wedge angle between backing roll with roll surface 1 and contacts.Roll surface 1 uses on the machine and directly connects Touch made-up belt face, therefore need to meet rolling accuracy requirement, it may be assumed that require roll surface curve precision, dimensional accuracy, table Surface accuracy is qualified, and carrying out flaw detection ensures roll zero defect, the most specially does coarse frosting treatment；

(3) turning antiskid groove 2 on paired roll surface 1, the gap periods of groove depth and groove according to roll material, Effect of rolling, plate region feature are adjusted, and record relevant parameter.Specifically: roll clamping on lathe, Use dial gauge levelling capturing, adjust working parameter of lathe (record) and disposably add by prescribed direction with circular knife Work shapes, and the depth of cut sets according to the helicla flute depth, and the degree of depth of antiskid groove 2 and interval width need to consider roller Surface hardness, anti-skidding time, using the factor such as unit plate face requirement feature, the initial stage uses, the helicla flute degree of depth and Interval width should be less.

After Roller Machining completes, tracking should be used on the machine, use normal mill speed, confirm that roll surface makes With, skidproof effect, as-rolled condition, board surface quality situation.

Claims

The most anti-skidding roll, including roll surface (1), it is characterised in that: being provided with spiral antiskid groove (2) on roll surface (1), the bottom land of antiskid groove (2) is arc；The quantity of antiskid groove (2) is two, two antiskid grooves (2) oppositely oriented.