CN202137198U - Device for connecting middle roller with bearing in shuttled manner for rolling mill - Google Patents
Device for connecting middle roller with bearing in shuttled manner for rolling mill Download PDFInfo
- Publication number
- CN202137198U CN202137198U CN 201120213846 CN201120213846U CN202137198U CN 202137198 U CN202137198 U CN 202137198U CN 201120213846 CN201120213846 CN 201120213846 CN 201120213846 U CN201120213846 U CN 201120213846U CN 202137198 U CN202137198 U CN 202137198U
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- China
- Prior art keywords
- bearing
- external thread
- outer ring
- interior axle
- calender rolls
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Mounting Of Bearings Or Others (AREA)
Abstract
The utility model relates to a device for connecting a middle roller with a bearing in shuttled manner for a rolling mill, which comprises a central spindle and a bearing unit, and is characterized in that: the central spindle consists of an inner shaft (1) and an external thread bushing (2), wherein a step shaft part (11) is arranged on one side of the inner shaft (1); the other side of the inner shaft (1) is a threaded shaft part (12); a connecting bearing outer ring is sleeved on the inner shaft (1); a shuttling mechanism pull hook (4) is fixed to one end of the connecting bearing outer ring (3); the bearing unit is sleeved on the inner shaft (1) and in the connecting bearing outer ring (3); the external thread bushing (2) is connected to the threaded shaft part (12) of the inner shaft by screw threads; two ends of the bearing unit are respectively located by the step shaft part (11) and the external thread bushing (2); and the other side of the external thread bushing (2) is connected with the middle roller (6) by a cover tile (5). The device cancels a fastening structure of a fastening nut, thereby completely eliminating the safety risk of generation of a fire caused by friction and high temperature due to possible loosening of the fastening nut in the connecting bearing device according to the original design, simultaneously effectively reducing the installation and examination difficulty of the bearing, and reducing the workload.
Description
Technical field
The utility model relates to a kind of intermediate calender rolls play connection bearing device that is used for milling train.
Background technology
First intermediate calender rolls of Sendzimir 20 roller corrosion resistant plate milling trains is designed to carry out in the axial float mode to improve product quality, and play pushes away, draws realization by the transmission side hydraulic cylinder.The bearing arrangement that connects intermediate calender rolls (rotation) and hydraulic cylinder drag hook (moving axially); As shown in Figure 2; Mainly comprise two radial bearings 1 ', two thrust bearings 2 ', spring 3 ' and annexes on the mandrel 4 ' in the middle of being set in; Spring 3 ' is positioned between two thrust bearings 2 ', and two radial bearings 1 ' then lay respectively at the outside of two thrust bearings 2 ', and an end of middle mandrel 4 ' links to each other with intermediate calender rolls 10 ' through cover tile 7 '; The other end of middle mandrel 4 ' links to each other with bearing group; This frame mode has determined the end of middle mandrel 4 ' must use locking nut 5 ' to compress and radial bearing 1 ', thrust bearing 2 ', spring 3 ' etc. are assembled together, and the periphery of each bearing is provided with connection bearing outer ring 8 ', and an end of connection bearing outer ring 8 ' is fixed with play mechanism drag hook 6 ' and right side end cap 9 ' respectively.The effect of locking nut 5 ' is most important in this structure, because the gap of thrust bearing 2 ' needs, this locking nut 5 ' can not be tightened fully simultaneously and can not make it in use loosening again.
The play that can destroy between the thrust bearing 2 ' after locking nut 5 ' becomes flexible makes it unusual play; Loosening when serious locking nut 5 ' can come off and dry friction take place and cause the 8 ' rotation of connection bearing outer ring with right side end cap 8 ', and then cause play mechanism drag hook 6 ' overheated and light ROLLING OIL and cause the milling train fire with the friction of connection bearing end cap.So, in this device locking nut 5 ' be designed to the potential safety hazard point, in the running of certain company's several years, locking nut 5 ' loosening scaling loss bearing once repeatedly took place and caused the milling train fire.Because nut 5 ' is hidden in bearing group inside, can't carry out routine examination in addition, the loosening of nut can not in time come to light.In order to ensure security of operation, must often carry out strip inspection, workload is very big.So from design, the existing intermediate calender rolls play connection bearing device that is used for milling train exists significant deficiency and potential safety hazard.
Solve the loosening problem of locking nut 5 '; Will make screw thread pair moment enough big, and have only the diameter of thread of increasing or strengthen two kinds of selections of screw thread pair coefficient of friction, but these two kinds of factors all be limited by steric requirements or actual process; Operating mode can only be limitedly improved, still permanent effect can not be reached.
Summary of the invention
The utility model technical problem to be solved is that a kind of intermediate calender rolls play connection bearing device that is used for milling train that need not locking nut is provided to above-mentioned prior art present situation; This device has thoroughly been eliminated the inner clamp nut of former design connection bearing device possibly become flexible and then cause friction high temperature security risk on fire; Effectively reduce bearing simultaneously and install, check work difficulty, reduced live load.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of intermediate calender rolls play connection bearing device that is used for milling train; Comprise mandrel and bearing group; It is characterized in that: said mandrel is made up of interior axle and external thread sleeve, and a side of interior axle has the step axial region, and the opposite side of interior axle is a screw spindle part; Be arranged with the connection bearing outer ring on the axle in said; One end of connection bearing outer ring is fixed with play mechanism drag hook, and said bearing group is set in interior and goes up and be positioned at the connection bearing outer ring, and said external thread sleeve is threaded on the screw spindle part of interior axle; The two ends of said bearing group position through step axial region and external thread sleeve respectively, and the opposite side of external thread sleeve then links to each other with intermediate calender rolls through cover tile.
One end of above-mentioned intermediate calender rolls is fixed with connecting bolt, and this connecting bolt is threaded with said interior shaft end after passing cover tile and external thread sleeve successively.Axle and intermediate calender rolls in the connection that like this can be more firm get loose between axle and the intermediate calender rolls in effectively preventing, and make intermediate calender rolls can better bear the play pulling force.
Above-mentioned bearing group comprises two radial bearings, two thrust bearings and several spring; Each radial bearing and thrust bearing all are set in interior and go up and be positioned at the connection bearing outer ring; Wherein, Said several spring is between two thrust bearings, and said two radial bearings then lay respectively at the outside of two thrust bearings.It is the bearing group structure that existing 12 roller corrosion resistant plate milling trains are adopted, and this structure can be made appropriate change as required certainly.
Compared with prior art; The advantage of the utility model is: this connection bearing device is designed to mandrel to be made up of interior axle and external thread sleeve two parts; One side of interior axle has the step axial region; The two ends of bearing group position through step axial region and external thread sleeve respectively; That is to say this device cancellation locking nut fastening structure, and other part of device keeps identical with original equipment and associated components do not changed to guarantee intrinsic function of use fully, so this device has thoroughly been eliminated the inner clamp nut of former design connection bearing device and possibly become flexible and then cause the high temperature security risk on fire that rubs; Effectively reduce bearing simultaneously and install, check work difficulty, reduced live load.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the existing structural representation that is used for the intermediate calender rolls play connection bearing device of milling train.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, be a preferred embodiment of the utility model.
A kind of intermediate calender rolls play connection bearing device that is used for milling train comprises mandrel and bearing group, and bearing group comprises two radial bearings 8, two thrust bearings 9 and several springs 10; Mandrel is made up of with external thread sleeve 2 interior axle 1, and a side of interior axle 1 has step axial region 11, and the opposite side of interior axle 1 is a screw spindle part 12; Be arranged with connection bearing outer ring 3 on the interior axle 1; One end of connection bearing outer ring 3 is fixed with play mechanism drag hook 4, and each radial bearing 8 all is set on the interior axle 1 with thrust bearing 9 and is positioned at connection bearing outer ring 3, wherein; Several springs 10 between two thrust bearings 9,8 outsides that lay respectively at two thrust bearings 9 of two radial bearings.
On the screw spindle part 12 of axle, the two ends of whole bearing group positioned through step axial region 11 and external thread sleeve 2 respectively in external thread sleeve 2 was threaded in, and the opposite side of external thread sleeve 2 is processed with flanged end and links to each other with intermediate calender rolls 6 through cover tile 5.One end of intermediate calender rolls 6 is fixed with connecting bolt 7, adjust the pretightning force of bearing and spring 10 after, this connecting bolt 7 passes cover tile 5 and external thread sleeve 2 backs successively and is connected with interior 1 end thread.
This device cancellation locking nut fastening structure; And other part of device keeps identical with original equipment and associated components is not changed to guarantee intrinsic function of use fully; Therefore this device has thoroughly been eliminated the inner clamp nut of former design connection bearing device and possibly become flexible and then cause friction high temperature security risk on fire; Effectively reduce bearing simultaneously and install, check work difficulty, reduced live load.
Each screw thread pair non-loosening of back on probation and inordinate wear phenomenon, the comprehensive assessment scheme is feasible, has gone up at the said firm 2,5～7CR (4 Sendzimir 20 roller corrosion resistant plate hoop mills) and has launched in batches to use, and has replaced intrinsic connection bearing device fully.Result of use has proved that the connection bearing device after improving is very good, reaches to eliminate fire risk, reduce the intended purposes of load and greatly reduced labour intensity that the workman carries out strip inspection, cover tile consumption is also reduced significantly and reduced production cost.
Claims (3)
1. intermediate calender rolls play connection bearing device that is used for milling train; Comprise mandrel and bearing group; It is characterized in that: said mandrel is made up of interior axle (1) and external thread sleeve (2), and a side of interior axle (1) has step axial region (11), and the opposite side of interior axle (1) is screw spindle part (12); Be arranged with connection bearing outer ring (3) on the axle (1) in said; One end of connection bearing outer ring (3) is fixed with play mechanism drag hook (4), and said bearing group is set on the interior axle (1) and is positioned at connection bearing outer ring (3), and said external thread sleeve (2) is threaded on the screw spindle part (12) of interior axle; The two ends of said bearing group position through step axial region (11) and external thread sleeve (2) respectively, and the opposite side of external thread sleeve (2) then links to each other with intermediate calender rolls (6) through cover tile (5).
2. the intermediate calender rolls play connection bearing device that is used for milling train according to claim 1; It is characterized in that: an end of said intermediate calender rolls (6) is fixed with connecting bolt (7), and this connecting bolt (7) passes cover tile (5) successively and is connected with said interior axle (a 1) end thread with external thread sleeve (2) back.
3. the intermediate calender rolls play connection bearing device that is used for milling train according to claim 1 and 2; It is characterized in that: said bearing group comprises two radial bearings (8), two thrust bearings (9) and several spring (10); Each radial bearing (8) and thrust bearing (9) all are set on the interior axle (1) and are positioned at connection bearing outer ring (3); Wherein, said several springs (10) are positioned between two thrust bearings (9), and said two radial bearings (8) then lay respectively at the outside of two thrust bearings (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120213846 CN202137198U (en) | 2011-06-23 | 2011-06-23 | Device for connecting middle roller with bearing in shuttled manner for rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120213846 CN202137198U (en) | 2011-06-23 | 2011-06-23 | Device for connecting middle roller with bearing in shuttled manner for rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202137198U true CN202137198U (en) | 2012-02-08 |
Family
ID=45548277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120213846 Expired - Fee Related CN202137198U (en) | 2011-06-23 | 2011-06-23 | Device for connecting middle roller with bearing in shuttled manner for rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202137198U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962380A (en) * | 2013-01-24 | 2014-08-06 | 宝山钢铁股份有限公司 | Lubrication device for push-pull intermediate roll bearing |
-
2011
- 2011-06-23 CN CN 201120213846 patent/CN202137198U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962380A (en) * | 2013-01-24 | 2014-08-06 | 宝山钢铁股份有限公司 | Lubrication device for push-pull intermediate roll bearing |
| CN103962380B (en) * | 2013-01-24 | 2016-08-03 | 宝山钢铁股份有限公司 | An a kind of plug-type intermediate roll bearing lubricating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20190623 |