CN203857046U

CN203857046U - End sealing structure of cold rolling mill roller

Info

Publication number: CN203857046U
Application number: CN201420215613.2U
Authority: CN
Inventors: 彭辉; 徐展; 杨振益; 张青
Original assignee: BAOGANG ROLLER TECHNOLOGY Co Ltd; Baoshan Iron and Steel Co Ltd
Current assignee: BAOGANG ROLLER TECHNOLOGY Co Ltd; Baoshan Iron and Steel Co Ltd
Priority date: 2014-04-29
Filing date: 2014-04-29
Publication date: 2014-10-01
Anticipated expiration: 2024-04-29

Abstract

The utility model discloses an end sealing structure of a cold rolling mill roller. The roller comprises a roller body, a roller neck and a middle transition part located between the roller body and the roller neck, wherein the diameter of the middle transition part is larger than the diameter of the roller neck and smaller than the diameter of the roller body, and a bearing is mounted on the roller neck. The end sealing structure comprises a sealing device arranged on the roller neck and used for sealing the bearing, and further comprises a sealing ring, wherein the sealing ring is arranged on the outer side of the end, close to the roller neck, of the middle transition part in a sleeved mode. By means of the end sealing structure of the cold rolling mill roller, emulsified liquid can be prevented from entering a bearing block, and thus the normal use of the bearing can be ensured.

Description

The end seal structure of cold rolling mill roll

Technical field

The utility model relates to cold-rolling process apparatus field, and specifically, the utility model relates to a kind of end seal structure of cold rolling mill roll.

Background technique

Roll is the instrument for rolled piece being rolled to processing, and it is the center of whole support, and other assemblies of support and mechanism are all for installing, support and adjust roll and guiding rolled piece correctly to pass in and out roll design.

The body of roll is the intermediate portion of roll, directly contacts with rolled piece, completes the rolling work to rolled piece by the rotation of the body of roll.Roll neck is arranged in bearing, bears rolling pressure, and by bearing support and screwdown gear, rolling load is passed to frame.The shape of roll neck has cylindrical and conical two classes, and cylindrical roll neck is generally for rolling bearing, and conical roll neck is for fluid friction bearing and sliding bearing.

Referring to Fig. 1, it shows one end of existing cold rolling mill roll.The roll neck 103 of this cold rolling mill roll 1 is conical roll neck, and filmatic bearing is installed on it.Filmatic bearing mainly comprises bearing support 10, lining 20, tapered sleeve 30 and seal arrangement 40, wherein, tapered sleeve is set in roll neck outside, lining is set in tapered sleeve outside, bearing sleeve is loaded on lining outside, between roll neck 103 and the body of roll 101, is middle transition portion 102, and seal arrangement 40 is arranged between bearing support 10 and this middle transition portion 102, to prevent that rolling mill compound from entering in bearing support from this, destroy bearing internal lubrication.

As shown in Figure 1, seal arrangement 40 is mainly made up of water seal 401, aluminium ring 402, ceramic ring 403, DF sealing 404.In use, the easy stressed generation deformation of roll, water seal 401 produces gap with roll end face, emulsion of rolling mill easily enters from water seal 401, through aluminium ring 402, arrive DF and seal 404 lips and ceramic ring 403 contact positions, afterwards, from entering, then enter bearing support inside from the another one lip of DF sealing 404 between the two.

To sum up, end seal structure of the prior art is only included in the seal arrangement that bearing place arranges, and emulsified liquid still easily enters in bearing support, damages bearing.

Model utility content

For addressing the above problem, the utility model provides a kind of end seal structure of cold rolling mill roll, and it can prevent that emulsified liquid from entering in the bearing support of this roll, ensures the normal use of bearing.

For achieving the above object, the utility model discloses a kind of end seal structure of cold rolling mill roll, described roll comprises the body of roll, roll neck and the middle transition portion between the described body of roll and described roll neck, the diameter of described middle transition portion is greater than the diameter of described roll neck and is less than the diameter of the described body of roll, on described roll neck, bearing is installed, described end seal structure comprises and is arranged at described roll neck, for the seal arrangement that described bearing is sealed, wherein, described end seal structure also comprises seal ring, described seal ring set is located at one end outside of described middle transition portion near described roll neck.

Preferably, described seal ring extends to described seal arrangement top.

Preferably, described seal ring and described middle transition portion are structure as a whole.

Preferably, described seal ring is provided with chamfering near one end of the described body of roll.

Preferably, described chamfering is R20 chamfering.

Preferably, the wall thickness of described seal ring is 10～15mm.

The end seal structure of cold rolling mill roll of the present utility model, the sheathed seal ring in one end in the middle transition portion of roll near roll neck, between sealing ring and body of roll end, form a groove, when use, emulsified liquid from body of roll direction will be discharged from this groove position, thereby avoid being entered in bearing support by seal arrangement, ensure that bearing normally uses.Near body of roll one end, chamfering is set at seal ring, can plays the effect of drainage, be convenient to emulsified liquid and discharge.

Brief description of the drawings

Fig. 1 is the structural representation of the end seal structure of cold rolling mill roll of the prior art;

Fig. 2 is the structural representation of the end seal structure of cold rolling mill roll of the present invention;

Fig. 3 is the partial enlarged drawing of A part in Fig. 2.

Embodiment

Below, by reference to the accompanying drawings, structure of the present utility model and working principle etc. are further described.

Referring to Fig. 2, the utility model discloses a kind of end seal structure of cold rolling mill roll, roll 1 comprises the body of roll 101, roll neck 103 and the middle transition portion 102 between the body of roll 101 and roll neck 103, wherein, the body of roll 101 directly contacts with rolled piece, forms the working portion of this cold rolling mill roll; Roll neck 103 is installed in bearing (not indicating in figure), and this bearing is chosen as filmatic bearing conventionally, forms the supporting part of this cold rolling mill roll.

As shown in Figure 2, the body of roll 101, roll neck 103 and middle transition portion 102 are solid of rotation, and the diameter of middle transition portion 102 is greater than the diameter of roll neck 103 and is less than the diameter of the body of roll 101.End seal structure of the present utility model comprises seal arrangement 40, and sealing device 40 is arranged on roll neck 103, for bearing is sealed.For effectively preventing that emulsified liquid from entering in bearing support, this end seal structure also comprises seal ring 104, and seal ring 104 is sheathed on the outside of middle transition portion 102 near one end of roll neck 103.Like this, form groove (not indicating in figure) between seal ring 104 and the body of roll 101, emulsified liquid is discharged from this, and is difficult for entering into bearing support inside by seal arrangement 40.

Aforesaid seal ring 104 can flush near the end of roll neck 103 with middle transition portion 102, and referring to Fig. 3, as preferably, seal ring 104 extends to outside middle transition portion 102, be positioned at seal arrangement 40 tops.Like this, can improve blocking effect, prevent that emulsified liquid from being entered by seal arrangement 40 upsides.

Aforesaid seal ring 104 can be that multiple usual manner forms with middle transition portion 102, the mode of for example interference fit, and as preferably, in the utility model, seal ring 104 and middle transition portion 102 are structure as a whole, and are directly integrally formed man-hour adding.

Further, for ease of emulsified liquid is derived, prevent that it from entering seal arrangement 40, seal ring 104 is provided with chamfering 105 near one end of the body of roll 101.As preferably, this chamfering 105 is R20 chamfering.

In addition, the thickness of seal ring 104 can be selected according to actual needs, and for easy to process, the wall thickness of seal ring 104 of the present utility model is 10～15mm.

The end seal structure of cold rolling mill roll of the present utility model, the sheathed seal ring 104 in one end in the middle transition portion 102 of roll near roll neck 103, between sealing ring 104 and the body of roll 101 ends, form a groove, when use, emulsified liquid from the body of roll 101 directions will be discharged from this groove position, thereby avoid entering in bearing support, ensure that bearing normally uses.This mode, even if there is micro-emulsified liquid to flow to seal arrangement 40, also can stops by sealed device 40, and can not enter in bearing support.

Above, be only schematic description of the present utility model, it will be recognized by those skilled in the art that and do not departing from the basis of working principle of the present utility model, can make multiple improvement to the utility model, this all belongs to protection domain of the present utility model.

Claims

1. the end seal structure of a cold rolling mill roll, described roll comprises the body of roll, roll neck and the middle transition portion between the described body of roll and described roll neck, the diameter of described middle transition portion is greater than the diameter of described roll neck and is less than the diameter of the described body of roll, on described roll neck, bearing is installed, described end seal structure comprises and is arranged at described roll neck, seal arrangement for described bearing is sealed, it is characterized in that, described end seal structure also comprises seal ring, and described seal ring set is located at one end outside of described middle transition portion near described roll neck.

2. the end seal structure of cold rolling mill roll as claimed in claim 1, is characterized in that, described seal ring extends to described seal arrangement top.

3. the end seal structure of cold rolling mill roll as claimed in claim 1, is characterized in that, described seal ring and described middle transition portion are structure as a whole.

4. the end seal structure of cold rolling mill roll as claimed in claim 1, is characterized in that, described seal ring is provided with chamfering near one end of the described body of roll.

5. the end seal structure of cold rolling mill roll as claimed in claim 4, is characterized in that, described chamfering is R20 chamfering.

6. the end seal structure of cold rolling mill roll as claimed in claim 1, is characterized in that, the wall thickness of described seal ring is 10～15mm.