CN205701868U - A kind of multi-roll mill middle roller spindle - Google Patents

Abstract

This utility model provides a kind of multi-roll mill middle roller spindle, belongs to field of mechanical technique.It solve the problem that existing intermediate calender rolls spindle structure is complicated, be easily damaged.This multi-roll mill middle roller spindle includes protecgulum, bearing box and bonnet, protecgulum and bonnet are fixedly connected with bearing box by bolt, the inner of axle is positioned in bearing box, outer end passes protecgulum and axis tile phase clamping, the end of axle the inner is fixed with two nuts and anti-skidding card, anti-skidding card is between two nuts, there is on the medial wall of bearing holder (housing, cover) annular shoulder block, annular shoulder block be respectively provided on two sides with two bearings, two bearings being positioned at annular shoulder block homonymy are close to close setting, four bearings are all enclosed within axle, two bearings being positioned at outside in four bearings lean with bonnet and protecgulum respectively, two bearings being positioned at inner side in four bearings lean with annular shoulder block respectively.This multi-roll mill middle roller spindle has simple in construction, assembles the easy to maintenance and advantage of failure rate is low.

Description

A kind of multi-roll mill middle roller spindle

Technical field

This utility model belongs to technical field, relates to a kind of multi-roll mill middle roller spindle.

Background technology

Having intermediate calender rolls in multi-roll mill, multi-roll mill operationally, is connected by hydraulic control Connecing intermediate calender rolls and make axial float, existing multi-roll mill middle roller spindle includes bonnet, axle Hold box and protecgulum, protecgulum and bonnet and be connected in the two ends of bearing box, bearing box by bolt In be equipped with axle, the inner end of axle is fixed with a nuts and washers, the outer end of axle Reach protecgulum outer with axis tile phase clamping, be positioned on the axle in bearing box and be cased with bearing successively 61907, axle sleeve, thrust bearing, spring, thrust bearing, axle sleeve and bearing 61907, The intermediate calender rolls spindle of this kind of structure, internal structure is complicated, and spare and accessory parts are more, assembling fittings Required precision is high, and bearing 61907 belongs to microlight-type, and anti-axial force is little, it is easy to broken Broken, easily cause stuck problem, and the thread pitch of end, axle the inner is little, effectively Screw thread is few, fragile, causes intermediate calender rolls uncontrolled, makes the production can not be normal time serious Carry out.

Summary of the invention

The purpose of this utility model is for the above-mentioned problems in the prior art, it is provided that A kind of multi-roll mill middle roller spindle, solves the technical problem that it is how to make intermediate calender rolls connect Axle construction is simple, it is easy to maintenance to assemble and reduces fault rate.

The purpose of this utility model can be realized by following technical proposal: a kind of many rollings Machine intermediate calender rolls spindle, logical including protecgulum, bearing box and bonnet, described protecgulum and bonnet Crossing bolt to be fixedly connected with bearing box, the inner of described axle is positioned in bearing box, and outer end is worn Cross protecgulum and axis tile phase clamping, it is characterised in that the end of described axle the inner is connected Have two nuts and anti-skidding card, described anti-skidding card between two nuts, institute Having annular shoulder block on the medial wall of the bearing holder (housing, cover) stated, the both sides of described annular shoulder block are divided Be not provided with two bearings, be positioned at annular shoulder block homonymy two bearings be close to close arrange, four Individual bearing is all enclosed within axle, four bearings are positioned at outside two bearings respectively with bonnet Lean with protecgulum, four bearings are positioned at inner side two bearings respectively with annular shoulder block Lean.

The internal cavities of this intermediate calender rolls spindle bearing box tightly arranges four bearings, structure Simply, assembling easy to maintenance, the end of axle the inner arranges two nuts, effectively increases The big length of screw thread, pitch overstriking, to 2mm, threaded will not damage, and with two It is locked that the centre of individual nut adds antiskid card sheet, reduces the fault rate of equipment.

In above-mentioned a kind of multi-roll mill middle roller spindle, described bonnet is along bonnet Axially having the through hole run through, described through hole is connected with the internal cavities of bearing box, Described through hole is provided with oil nozzle.

In above-mentioned a kind of multi-roll mill middle roller spindle, four bearings are positioned at outside Two bearings be bearing 6206.The anti-axial force of bearing 6206 is strong.

In above-mentioned a kind of multi-roll mill middle roller spindle, four bearings are positioned at inner side Two bearings be bearing 8206.The anti-axial force of bearing 8206 is strong.

Compared with prior art, the multi-roll mill middle roller spindle that this utility model provides exists Annular shoulder block is set on the medial wall of bearing box, four bearings on the inner set of axle, four Individual bearing is closely pasted by two nuts, anti-skidding card, annular shoulder block, protecgulum and bonnet Close, simple in construction, assemble easy to maintenance, and four anti-axial forces of bearing are strong, not rapid wear Bad, reduce the fault rate of equipment.

Accompanying drawing explanation

Fig. 1 is the overall structure sectional view of this multi-roll mill middle roller spindle.

In figure, 1, protecgulum；2, bearing box；3, bonnet；4, bolt；5, axis tile； 6, nut；7, anti-skidding card；8, annular shoulder block；9, bearing；10, through hole；11、 Oil nozzle.

Detailed description of the invention

The following is specific embodiment of the utility model and combine accompanying drawing, to this utility model Technical scheme be further described, but this utility model is not limited to these embodiments.

As it is shown in figure 1, this multi-roll mill middle roller spindle include protecgulum 1, bearing 9 box 2 and after Lid 3, protecgulum 1 and bonnet 3 are fixedly connected with bearing 9 box 2 by bolt 4, and the inner of axle is positioned at axle Holding in 9 boxes 2, outer end passes protecgulum 1 and axis tile 5 phase clamping, and the end of axle the inner is fixed with Two nuts 6 and anti-skidding card 7, anti-skidding card 7 is between two nuts 6.

Having annular shoulder block 8 on the medial wall of bearing 9 set, the both sides of annular shoulder block 8 set respectively Have two bearings 9, be positioned at annular shoulder block 8 homonymy two bearings 9 be close to close arrange, four Bearing 9 is all enclosed within axle, four bearings 9 are positioned at outside two bearings 9 respectively with bonnet 3 Lean with protecgulum 1, in the present embodiment, four bearings 9 are positioned at two bearings 9 in outside For bearing 96206, four bearings 9 are positioned at two bearings 9 of inner side respectively with annular shoulder block 8 Leaning, in the present embodiment, two bearings 9 being positioned at inner side in four bearings 9 are bearing 98206。

Bonnet 3 axially has, along bonnet 3, a through hole 10 run through, through hole 10 and bearing 9 box 2 Internal cavities be connected, be provided with oil nozzle 11 at through hole 10.

Specific embodiment described herein is only for example to this utility model spirit Explanation.This utility model person of ordinary skill in the field can be to described concrete Embodiment is made various amendment or supplements or use similar mode to substitute, but not Spirit of the present utility model can be deviateed or surmount model defined in appended claims Enclose.

Although the most more employ protecgulum 1, bearing 9 box 2, bonnet 3, bolt 4, Axis tile 5, nut 6, anti-skidding card 7, annular shoulder block 8, bearing 9, through hole 10, oil Mouth 11 term such as grade, but it is not precluded from using the probability of other term.Use these terms It is only used to describe and explain essence of the present utility model more easily；They are explained The restriction becoming any one additional is all contrary with this utility model spirit.

Claims (4)

1. null1. a multi-roll mill middle roller spindle，Including protecgulum (1)、Bearing box (2) and bonnet (3)，Described protecgulum (1) and bonnet (3) are fixedly connected with bearing box (2) by bolt (4)，The inner of described axle is positioned in bearing box (2)，Outer end passes protecgulum (1) and axis tile (5) phase clamping，It is characterized in that，The end of described axle the inner is fixed with two nuts (6) and anti-skidding card (7)，Described anti-skidding card (7) is positioned between two nuts (6)，On the medial wall that described bearing (9) overlaps, there is annular shoulder block (8)，Described annular shoulder block (8) be respectively provided on two sides with two bearings (9)，Two bearings (9) being positioned at annular shoulder block (8) homonymy are close to close setting，Four bearings (9) are all enclosed within axle，Two bearings (9) being positioned at outside in four bearings (9) lean with bonnet (3) and protecgulum (1) respectively，Two bearings (9) being positioned at inner side in four bearings (9) lean with annular shoulder block (8) respectively.
2. A kind of multi-roll mill middle roller spindle the most according to claim 1, it is characterized in that, described bonnet (3) axially has, along bonnet (3), the through hole (10) run through, described through hole (10) is connected with the internal cavities of bearing (9) box (2), and described through hole (10) place is provided with oil nozzle (11).
3. A kind of multi-roll mill middle roller spindle the most according to claim 1 and 2, it is characterised in that two bearings (9) being positioned at outside in four bearings (9) are bearing 6206.
4. A kind of multi-roll mill middle roller spindle the most according to claim 1 and 2, it is characterised in that two bearings (9) being positioned at inner side in four bearings (9) are bearing 8206.