CN206065029U - For the support roller of multi-roll mill - Google Patents

Abstract

This utility model provides the support roller for multi-roll mill, including mandrel, back lining bearing and saddle, the surface of the mandrel opens up keyway, the keyway is arranged along the length direction of the mandrel, back lining bearing and saddle are nested with the mandrel exterior compartment of terrain, and the two ends of mandrel are saddle, the saddle is scheduled on the keyway by keying, and back lining bearing is fixed on mandrel exterior.In this utility model, keyway is opened up on mandrel, the unified benchmark that keyway is manufactured as whole Element Designs makes the unifying datum of all parts, each part can be coupled together by key, improve the overall precision of support roller.It is by being nested with back lining bearing and saddle formation support roller in mandrel exterior, easy to assembly；The quantity of back lining bearing and saddle can be increased and decreased according to the demand of rolling, it is to avoid impression occurs in steel band.

Description

For the support roller of multi-roll mill

Technical field

This utility model is related to steel rolling field, more particularly to a kind of support roller for multi-roll mill.

Background technology

Support roller is multi-roll mill vitals.For mill, which has the support roller of different functions, including having The support roller of the function of pressure and the adjustment of convexity radial roller shape；Support roller with the upper roll neck compensation function of pressure；With side pressure roller The support roller of footpath compensation function.All by a mandrel, some back lining bearings, some saddle components are assembled every support roller. But, the manufacturing technology of these three parts differs greatly.At present in process, in order to cost-effective, these three parts are Manufactured in different suppliers respectively.When support roller breaks down in the operation of rolling or finds defect, it is impossible to judgement be by Cause in which kind of part, cause the phenomenon for occurring respectively manufacturing that inter-plant is shift onto each other.It can be seen that, in existing Support roller assembly due to Lack unified benchmark, cause between different parts that matching degree is low, overall precision is low.

Utility model content

To solve above-mentioned the problems of the prior art, the support roller for multi-roll mill is provided in this utility model, in core Keyway is opened up on axle, the unified benchmark that keyway is manufactured as whole Element Designs, it is to avoid reduce propping up as benchmark is inconsistent The overall precision of support roller.

In order to achieve the above object, this utility model provides following technical scheme：

For the support roller of multi-roll mill, including mandrel, back lining bearing and saddle, the surface of the mandrel opens up keyway, The keyway is arranged along the length direction of the mandrel, is nested with back lining bearing and saddle in the mandrel exterior compartment of terrain, and The two ends of mandrel are saddle, and the saddle is scheduled on the keyway by keying, and back lining bearing is fixed on mandrel exterior. Keyway is opened up on mandrel, the unified benchmark that keyway is manufactured as whole Element Designs makes all of part can be transferred through keying It is scheduled on keyway, it is to avoid reduce the overall precision of support roller as benchmark is inconsistent.Backing is nested with by the outside in mandrel Bearing and saddle form support roller, easy to assembly；The quantity of back lining bearing and saddle can be increased and decreased according to the demand of rolling, Steel band is avoided impression occur.

In a preferred embodiment, the saddle is fixed on standard needle roller inside saddle by rivet.Use Existing standard needle roller, reduces the cost of processing, and ensures end-play in scope of design.Needle roller is fixed on using rivet Inside saddle, the existing connected mode by screw is changed, it is ensured that the axial float of saddle is in scope of design.

In a preferred embodiment, the centre of the mandrel opens up air inlet.

In a preferred embodiment, the external stability saddle ring of the saddle.

The beneficial effects of the utility model are：

Keyway is opened up on mandrel, the unified benchmark that keyway is manufactured as whole Element Designs makes the base of all parts It is accurate unified, each part can be coupled together by key, improve the overall precision of support roller.By being nested with the back of the body in mandrel exterior Lining bearing and saddle form support roller, easy to assembly；The quantity of back lining bearing and saddle can be increased according to the demand of rolling Subtract, it is to avoid impression occurs in steel band.

Description of the drawings

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are only It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise for not paying creative work Under, can be with according to these other accompanying drawings of accompanying drawings acquisition.

Fig. 1 is the structural representation of mandrel；

Fig. 2 is the sectional view of mandrel；

Fig. 3 is the sectional view of saddle；

Fig. 4 is a kind of installation diagram of embodiment.

Specific embodiment

Below in conjunction with accompanying drawing of the present utility model, the technical solution of the utility model is clearly and completely described, Obviously, described embodiment is only a part of embodiment of this utility model, rather than the embodiment of whole.Based on this practicality Embodiment in new, the every other reality obtained under the premise of creative work is not made by those of ordinary skill in the art Example is applied, the scope of this utility model protection is belonged to.

The support roller for multi-roll mill that this utility model is provided, including mandrel 1, back lining bearing 2 and saddle 3.In core The centre of axle 1 opens up air inlet 10.Such as Fig. 1-2, the surface of mandrel 1 opens up keyway 11.The length direction of keyway 11 and mandrel 1 Length direction is parallel.Such as Fig. 4, mandrel 1 space outside be nested with back lining bearing 2 and saddle 3.Due to the two of back lining bearing 2 End needs to be fixed on mandrel 1 by saddle 3, therefore, saddle 3 is at the two ends of mandrel 1.Saddle 3 is scheduled on key by keying On groove 11.Back lining bearing 2 between saddle 3 is fixed on the outside of mandrel 1 by two saddles 3.The size of keyway 11 Can be designed according to the use needs of multi-roll mill.

For the convenience of processing, such as Fig. 3, saddle 3 are fixed on standard needle roller 33 inside saddle 1 by rivet 32.Use Existing standard needle roller, reduces the cost of processing, and ensures end-play in scope of design.Meanwhile, using rivet by needle roller It is fixed on inside saddle 3, it is ensured that the axial float of saddle 3 is in scope of design.In the external stability saddle ring 31 of saddle 3, lead to Cross saddle ring 31 to be fixed in frame.

Due to bearing mnanufacture factory possess manufacture high accuracy parts ability, this utility model in manufacturing process, by core Axle, back lining bearing, saddle member are all arranged in the processing of bearing mnanufacture factory.After this utility model is completed, can be in groups The two sides of reconditioning saddle ring 31, can effectively improve the glacing flatness of backing roll two sides.Simultaneously when being installed first, Can check by 31 two sides of saddle ring whether each locating surface in frame plum blossom hole is qualified, it is ensured that final assembly precision. For the support roller used in narrow-band rolling mill, the back lining bearing for needing to take quantity not wait for using is suitable for, it is to avoid in rolling Occurs impression during strip.

The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit to In this, any those familiar with the art can readily occur in change in the technical scope that this utility model is disclosed Or replace, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with the power The protection domain that profit is required is defined.

Claims (4)

1. the support roller of multi-roll mill, including mandrel, multiple back lining bearings and multiple saddles are used for, it is characterised in that：The core The surface of axle opens up keyway, and the keyway is arranged along the length direction of the mandrel, is nested with the mandrel exterior compartment of terrain Back lining bearing and saddle, and the two ends of mandrel are saddle, the saddle is scheduled on the keyway, back lining bearing by keying It is fixed on mandrel exterior.

2. the support roller for multi-roll mill according to claim 1, it is characterised in that：The saddle will be marked by rivet Quasi- needle roller is fixed on inside saddle.

3. the support roller for multi-roll mill according to claim 1 and 2, it is characterised in that：Open the centre of the mandrel If air inlet.

4. the support roller for multi-roll mill according to claim 1 and 2, it is characterised in that：The outside of the saddle is solid Determine saddle ring.