CN205270379U

CN205270379U - Rolling mill and connection structure of roll and roll axle thereof

Info

Publication number: CN205270379U
Application number: CN201521064459.4U
Authority: CN
Inventors: 唐辉
Original assignee: Chongqing Maituo Technology Co Ltd
Current assignee: Anhui Sinosteel Nuotai Engineering Technology Co., Ltd
Priority date: 2015-12-17
Filing date: 2015-12-17
Publication date: 2016-06-01
Anticipated expiration: 2025-12-17

Abstract

The utility model relates to a rolling mill and connection structure of roll and roll axle thereof. Wherein, the connection structure of the roll of rolling mill and roll axle is including the roll axle with rise by the stressed joint through the taper sleeve and be in the epaxial roll of roll, this connection structure still includes: the setting is in the outer end of roll, and with the tight piece of first clamp that the taper sleeve transmission is connected, the tight piece of first clamp is in through threaded connection the roll epaxial lock nut compress tightly on the outer terminal surface of roll. The embodiment of the utility model provides a connection structure of well disclosed roll and roll axle provides the moment of torsion transfer mode of a complex, has changed the mode of only transmitting the moment of torsion at present through single taper sleeve, and this kind of mode can more effectual transmission moment of torsion, makes simultaneously at transmission phase during with the moment of torsion, and the tensioning force between taper sleeve and the roll can suitably reduce to reduce the roll by a wide margin and ruptured probability appears, effectively avoid the breaker roll to cause destruction.

Description

A kind of attachment structure of milling train and roll and roll mandrel

Technical field

This utility model relates to technical field of metallurgical manufacturing, particularly to the attachment structure of a kind of milling train and roll and roll mandrel.

Background technology

Needing to use milling train in System on Rolling Steel, in milling train, roll is for contacting with steel, and roll sheath is located on roll mandrel, and its rotary power is also transmitted by roll mandrel.

The particularity of roll working environment and job specification determines cannot process the torque transfer arrangement such as any spline in its inner ring, because being very easy to after machined the structures such as keyway in inner ring cause breaking of roll, this will result directly in scrapping of roll.

In order to be transferred on roll by the power on roll shaft, roll is connected on roll shaft by tapered sleeve tensioner by method exactly comparatively conventional at present, is transmitted the moment of torsion of needs by the frictional force between expansion sleeve and roll. Due to only with this single moment of torsion transfer mode, it is thus desirable to ensure there is sufficiently large frictional force between the two to transmit the moment of torsion of needs, avoid both to skid, but the generation of frictional force needs sufficiently large expanding force, and roll will substantially rise in its temperature after long rolling operation, this causes that its intensity is deteriorated, and huge expanding force is very easy to make roll produce to break, and causes scrapping of roll.

Therefore, how can provide a kind of more efficiently moment of torsion transfer mode, be that current those skilled in the art need badly and solve the technical problem that to avoid roll is damaged.

Utility model content

One of the purpose of this utility model is to provide the attachment structure of a kind of roll and roll mandrel, in order to disclose a kind of more efficiently moment of torsion transfer mode, thus avoiding roll is damaged.

Another object of the present utility model also resides in a kind of milling train with above-mentioned attachment structure of offer.

For reaching above-mentioned purpose, the attachment structure of roll and the roll mandrel of the milling train that this utility model provides, it is connected to the roll on described roll mandrel including roll mandrel with by tapered sleeve tensioner, this attachment structure also includes:

It is arranged on the outer end of described roll, and the first clamp clip being in transmission connection with described tapered sleeve, the locking nut that described first clamp clip is threadedly attached on described roll mandrel is pressed on the outer face of described roll.

Preferably, also include the inner being arranged on described roll, and the second clamp clip being in transmission connection with described roll mandrel, described first clamp clip one side and the laminating of the convex shoulder on described roll mandrel, another side is pressed on the inner face of described roll by described locking nut.

Preferably, described tapered sleeve and described first clamp clip are that key is in transmission connection.

Preferably, described tapered sleeve and described roll mandrel are that key is in transmission connection.

Preferably, described roll mandrel and described second clamp clip are that key is in transmission connection.

Milling train disclosed in the utility model, including roll mandrel and the roll being arranged on described roll mandrel, and the attachment structure that the attachment structure of described roll and roll mandrel is roll disclosed in above-mentioned any one and roll mandrel.

As can be seen from the above technical solutions, in roll disclosed in this utility model and the attachment structure of roll mandrel, between roll with roll mandrel except adopting tapered sleeve tensioner to be connected, also being provided with the first clamp clip in the outer end of roll, the first clamp clip and the tapered sleeve nut that is in transmission connection and is locked is pressed on the outer face of roll.

Understandable, first the moment of roll mandrel will be transferred on tapered sleeve, and then the moment on tapered sleeve is transferred on roll at least through two approach simultaneously, and a paths is the frictional force transmission moment of torsion between tapered sleeve outer surface and roll inner headed face; Another paths is that tapered sleeve delivers torque to the first clamp clip, and the first clamp clip delivers torque to roll by the frictional force of himself outer face with roll.

As can be seen here, roll disclosed in this utility model embodiment and the attachment structure of roll mandrel provide the moment of torsion transfer mode of a kind of compound, change the mode only being transmitted moment of torsion at present by single tapered sleeve, this kind of mode can more efficiently transmission moment of torsion, make when transmitting same torque simultaneously, expanding force between tapered sleeve and roll can suitably reduce, thus probability that breaking occur in roll is greatly reduced, is prevented effectively from and roll is damaged.

Accompanying drawing explanation

Fig. 1 is the generalized section of roll disclosed in this utility model embodiment and roll mandrel attachment structure;

Fig. 2 is the close-up schematic view of A in Fig. 1;

Fig. 3 is the exploded perspective view of roll mandrel disclosed in this utility model embodiment and tapered sleeve.

Wherein,

1 is roll mandrel, and 2 is roll, and 3 is tapered sleeve, and 4 is the first clamp clip, and 5 is locking nut, and 6 is the second clamp clip, and 11 is spline, and 31 is spline.

Detailed description of the invention

One of core of the present utility model is to provide the roll of a kind of milling train and the attachment structure of roll mandrel, in order to disclose a kind of more efficiently moment of torsion transfer mode, thus avoiding roll is damaged.

Another core of the present utility model is to provide a kind of milling train with above-mentioned attachment structure.

In order to make those skilled in the art be more fully understood that this utility model scheme, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

Refer to the generalized section that Fig. 1 and Fig. 2, Fig. 1 are roll disclosed in this utility model embodiment and roll mandrel attachment structure, Fig. 2 is the close-up schematic view of A in Fig. 1.

In the roll of milling train disclosed in this utility model and the attachment structure of roll mandrel, including roll mandrel 1 and the roll 2 that is connected to by tapered sleeve 3 tensioner on roll mandrel 1, and this attachment structure also includes the first clamp clip 4, refer to Fig. 1, first clamp clip 4 is arranged on the outer end of roll 2, and being in transmission connection with tapered sleeve 3, the locking nut 5 that the first clamp clip 4 is threadedly attached on roll mandrel 1 is pressed on the outer face of roll mandrel 1.

Need to illustrate, owing to roll mandrel 1 is to stretch out in roller case, therefore after roll 2 is arranged on roll mandrel 1, being inner near one end of roller case panel, the one end away from roller case panel is outer end, as shown in fig. 1, in Fig. 1, the left end of roll 2 is outer face, and right-hand member is inner face.

By so that embodiment can be seen that, in roll disclosed in this utility model embodiment and the attachment structure of roll mandrel, between roll 2 with roll mandrel 1 except adopting tapered sleeve 3 tensioner to be connected, also be provided with the first clamp clip 4 in the outer end of roll 2, the first clamp clip 4 and tapered sleeve 3 nut 5 that is in transmission connection and is locked is pressed on the outer face of roll 2.

Skilled artisans appreciate that, first the moment of roll mandrel 1 will be transferred on tapered sleeve 3, then the moment on tapered sleeve 3 is transferred on roll 2 at least through two approach simultaneously, and a paths is the frictional force transmission moment of torsion between tapered sleeve 3 outer surface and roll 2 inner headed face; Another paths is that tapered sleeve 3 delivers torque to the first clamp clip 4, and the first clamp clip 4 delivers torque to roll 2 by the frictional force of himself outer face with roll 2.

As can be seen here, roll 2 disclosed in above-described embodiment and the attachment structure of roll mandrel 1 provide the moment of torsion transfer mode of a kind of compound, change the mode only being transmitted moment of torsion at present by single tapered sleeve 3, this kind of mode can more efficiently transmission moment of torsion, make when transmitting same torque simultaneously, expanding force between tapered sleeve 3 and roll 2 can suitably reduce, thus probability that breaking occur in roll 2 is greatly reduced, is prevented effectively from and roll 2 is damaged.

For further prioritization scheme, the present embodiment has made further improvement on the basis of above-described embodiment, also include the second clamp clip 6 being arranged on roll 2 the inner in the present embodiment, second clamp clip 6 is in transmission connection with roll mandrel 1, and the one side of the second clamp clip 6 offsets with the convex shoulder on roll mandrel 1, the another side nut 5 that is locked is pressed on the inner face of roll 2.

Please also refer to Fig. 1 and Fig. 2, we can find out the set-up mode of the second clamp clip 6 clearly in fig. 2, owing to needing to carry out movable sealing between roll mandrel 1 and roller tank shell, therefore on the convex shoulder of roll mandrel 1, it is provided with the sealing member with labyrinth seal, second clamp clip 6 is connected on the convex shoulder of roll mandrel 1 by this sealing member indirectly, and the power that the outermost locking nut 5 of roll mandrel 1 applies makes the second clamp clip 6 be pressed on the inner face of roll 2.

This just further increases the pipeline of roll mandrel moment, in the process carrying out moment of torsion transmission, moment on a part of roll mandrel 1 can also be passed through the second clamp clip 6 and be transferred on the inner face of roll 2, thus when transmitting identical moment, expanding force between tapered sleeve 3 and roll 2 can reduce further, thus reduce further the probability that roll 2 breaks.

It is more highly preferred to, it is also possible on the first clamp clip 4 and the second clamp clip 6, be arranged to strengthen the coating of frictional force, or the friction material owing to strengthening frictional force is set.

In order to avoid the loss of moment, being in transmission connection for key, be more highly preferred between tapered sleeve 3 and the first clamp clip 4 in this utility model embodiment, the first clamp clip 4 is set on tapered sleeve 3, and adopts spline to be connected with tapered sleeve 3.

As shown in Figure 3, it is also adopted by key between tapered sleeve 3 with roll mandrel 1 to be connected, it is preferably spline to connect, concrete, roll mandrel 1 is provided with spline 11, being provided with in the inner ring of tapered sleeve 3 and the spline 31 of spline 11 adaptation, this will be prevented effectively between roll mandrel 1 and tapered sleeve 3 and rotate against, thus avoiding loss occur in moment of torsion transmittance process.

With reference to scheme disclosed in above-described embodiment, between the first clamp clip 4 and roll mandrel 1 it is also preferred that employing key be in transmission connection.

Also disclosing a kind of milling train in this utility model, this milling train includes roll mandrel 1 and the roll 2 being arranged on roll mandrel 1 and the attachment structure that the attachment structure of roll 2 and roll mandrel 1 is roll disclosed in above-mentioned any one embodiment and roll mandrel.

Owing to have employed the attachment structure of roll disclosed in above-described embodiment and roll mandrel, thus this milling train has the corresponding technological merit of above-mentioned attachment structure concurrently, in present specification, this is no longer repeated.

Above the attachment structure of milling train provided by the utility model and roll and roll mandrel is described in detail. Principle of the present utility model and embodiment are set forth by specific case used herein, and the explanation of above example is only intended to help to understand method of the present utility model and core concept thereof. Should be understood that; for those skilled in the art; under the premise without departing from this utility model principle, it is also possible to this utility model carries out some improvement and modification, these improve and modification also falls in this utility model scope of the claims.

Claims

1. an attachment structure for the roll of milling train and roll mandrel, including roll mandrel (1) and the roll (2) that is connected to by tapered sleeve (3) tensioner on described roll mandrel (1), it is characterised in that also include:

It is arranged on the outer end of described roll (2), and the first clamp clip (4) being in transmission connection with described tapered sleeve (3), the locking nut (5) that described first clamp clip (4) is threadedly attached on described roll mandrel (1) is pressed on the outer face of described roll (2).

2. the attachment structure of roll according to claim 1 and roll mandrel, it is characterized in that, also include the inner being arranged on described roll (2), and the second clamp clip (6) being in transmission connection with described roll mandrel (1), described second clamp clip (6) one side offsets with the convex shoulder on described roll mandrel (1), and another side is pressed on the inner face of described roll (2) by described locking nut (5).

3. the attachment structure of roll according to claim 1 and roll mandrel, it is characterised in that described tapered sleeve (3) and described first clamp clip (4) are in transmission connection for key.

4. the attachment structure of roll according to claim 3 and roll mandrel, it is characterised in that described tapered sleeve (3) and described roll mandrel (1) are in transmission connection for key.

5. the attachment structure of roll according to claim 2 and roll mandrel, it is characterised in that described roll mandrel (1) and described second clamp clip (6) are in transmission connection for key.

6. a milling train, including roll mandrel (1) and the roll (2) that is arranged on described roll mandrel (1), it is characterized in that, the attachment structure of described roll (2) and roll mandrel (1) is the attachment structure of the roll as described in claim 1-5 any one and roll mandrel.