CN203140431U - Roller structure of support mandril - Google Patents
Roller structure of support mandril Download PDFInfo
- Publication number
- CN203140431U CN203140431U CN 201320081085 CN201320081085U CN203140431U CN 203140431 U CN203140431 U CN 203140431U CN 201320081085 CN201320081085 CN 201320081085 CN 201320081085 U CN201320081085 U CN 201320081085U CN 203140431 U CN203140431 U CN 203140431U
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- CN
- China
- Prior art keywords
- roller
- main shaft
- way
- supporting seat
- spindle
- Prior art date
- 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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Abstract
The utility model provides a roller structure of a support mandril, and the structure can effectively adjust the axial distance of a spindle, ensures the working precision of a support roller and meanwhile fully lubricates conical bearings, so as to prevent the roller from wearing the mandril. The roller structure of the support mandril comprises the roller, the conical bearings, the spindle and a carriage; the roller is fixedly arranged on the spindle by the conical bearings arranged on both ends; the structure is characterized by consisting of a wrap-around support seat; one end of the carriage is provided with an installation slot; the wrap-around support seat is arranged on the end of the installation slot; the spindle is arranged in an installation hole of the wrap-around support seat; the spindle is provided with two sections of threads; threads I are arranged on the spindle and between the roller and the wrap-around support seat; a thread II is arranged at the tail part of the spindle; and the threads I and the thread II of the spindle are respectively provided with circular nuts I and a circular nut II.
Description
Technical field
The utility model relates to the seamless steel pipe production technical field, relates in particular to pipe mill device technique field, is specially a kind of roller-way structure that supports plug.
Background technology
In seamless steel tube production process, the inner roll of pipe mill cooperates plug that hollow billet is rolled, and in rolling process, plug needs depressing table to support.Its structure of existing depressing table as shown in Figure 1, main shaft 3 is fixed in by conical bearing 2,5 in roller-way 4 two ends, main shaft 3 is plugged in bracing frame 13, main shaft 3 and bracing frame 13 matched in clearance.During rolling, because main shaft and bracing frame matched in clearance, main shaft is stressed rotation when rolling, weares and teares between main shaft and the bracing frame, the end play of conical bearing and main shaft mounted in pairing mode is difficult to adjust and causes axially collecting together of main shaft, influence the operating accuracy of depressing table, simultaneously, conical bearing can't lubricate, stuck easily, cause when plug withdraws from depressing table, produce violent friction between plug and the roller-way, the damage plug.
Summary of the invention
At the problems referred to above, the utility model provides a kind of roller-way structure that supports plug, and it can effectively regulate the axial distance of main shaft, guarantees the operating accuracy of depressing table, and it is lubricated simultaneously conical bearing to be dashed branch, prevents roller-way wearing and tearing plug.
Its technical scheme is such, a kind of roller-way structure that supports plug, it comprises roller-way, conical bearing, main shaft and bracing frame, described roller-way is installed described conical bearing by two ends and is fixed in described main shaft, it is characterized in that: it comprises the formula supporting seat that narrows, support frame as described above one end is provided with mounting groove, the described formula supporting seat that narrows is installed on described mounting groove end, described main shaft is installed in the installing hole of the described formula supporting seat that narrows, described main shaft is provided with two sections screw threads, described main shaft, be provided with screw thread one between the formula supporting seat at described roller-way and described narrowing, described main shaft afterbody is provided with screw thread two, and the screw thread one of described main shaft and screw thread two positions are separately installed with round nut one and round nut two.
It is further characterized in that:
It also comprises end cap one and end cap two, described end cap one is installed on described roller-way outside end face, described end cap two is installed on described roller-way inner side end, at described roller-way and describedly narrow between the formula supporting seat and cover described nut one, be provided with lubricating pipe in the described main shaft;
Described end cap two, the opening medial surface that is run through by described main shaft are provided with seal;
Described main shaft is connected with the described formula supporting seat key that narrows.
After adopting structure of the present utility model, its beneficial effect is: main shaft is provided with two sections screw threads, and round nut one and round nut two be installed, round nut one is between the conical bearing and end cap two of roller-way inner side end, can effectively regulate the assemblage gap after conical bearing and main shaft match, prevent that main shaft from axially collecting together because wearing and tearing produce, round nut two is positioned at the main shaft afterbody, can effectively regulate the position of depressing table on installing rack, by effective adjusting of nut one and two pairs of main shaft locus of nut, guarantee the operating accuracy of depressing table; Main shaft inside is provided with the integral body that forms sealing between lubricating pipe, end cap one, end cap two, seal and the roller-way, prevent the passage of lubricating oil, make conical bearing can access sufficient lubrication, avoid outside cooling water, dust etc. to enter roller-way inside simultaneously, roller-way rotates smooth and easy, reduce the friction between roller-way and the plug, guarantee that plug is intact.
Description of drawings
Fig. 1 is the structural representation of existing depressing table;
Fig. 2 is the utility model structural representation;
Fig. 3 omits the A-A of bracing frame to cross-sectional view for Fig. 2.
The specific embodiment
As shown in Figures 2 and 3, a kind of roller-way 4 structures that support plug, it comprises roller-way 4, conical bearing 2,5, main shaft 3 and bracing frame 13, roller-way 4 is installed conical bearing 2 by two ends, 5 are fixed in main shaft 3, it comprises the formula supporting seat 9 that narrows, bracing frame 13 1 ends are provided with mounting groove 14, the formula that narrows supporting seat 9 is installed on the mounting groove end, main shaft 3 is installed in the installing hole of the formula supporting seat 9 that narrows, main shaft 3 is provided with two sections screw threads, main shaft 3, at roller-way 4 with narrow and be provided with screw thread one between the formula supporting seat 9, main shaft 3 afterbodys are provided with screw thread two, and the screw thread one of main shaft 3 and screw thread two positions are separately installed with round nut 1 and round nut 2 12; It also comprises end cap 1 and end cap 26, and end cap 1 is installed on roller-way 4 outside end faces, and end cap 26 is installed on roller-way 4 inner side ends, at roller-way 4 and narrow between the formula supporting seat 9 and cover nut one, is provided with lubricating pipe 15 in the main shaft 3; End cap 26, the opening medial surface that is run through by main shaft 3 are provided with seal 8; Main shaft 3 is connected with formula supporting seat 9 keys that narrow.
Among Fig. 2,10 is flat key, is used for main shaft 3 and is connected between the formula supporting seat 9 with narrowing, and 11 is pad.
Claims (4)
1. roller-way structure that supports plug, it comprises roller-way, conical bearing, main shaft and bracing frame, described roller-way is installed described conical bearing by two ends and is fixed in described main shaft, it is characterized in that: it comprises the formula supporting seat that narrows, support frame as described above one end is provided with mounting groove, the described formula supporting seat that narrows is installed on described mounting groove end, described main shaft is installed in the installing hole of the described formula supporting seat that narrows, described main shaft is provided with two sections screw threads, described main shaft, be provided with screw thread one between the formula supporting seat at described roller-way and described narrowing, described main shaft afterbody is provided with screw thread two, and the screw thread one of described main shaft and screw thread two positions are separately installed with round nut one and round nut two.
2. a kind of roller-way structure that supports plug according to claim 1, it is characterized in that: it also comprises end cap one and end cap two, described end cap one is installed on described roller-way outside end face, described end cap two is installed on described roller-way inner side end, at described roller-way and describedly narrow between the formula supporting seat and cover described nut one, be provided with lubricating pipe in the described main shaft.
3. a kind of roller-way structure that supports plug according to claim 2, it is characterized in that: described end cap two, the opening medial surface that is run through by described main shaft are provided with seal.
4. a kind of roller-way structure that supports plug according to claim 1, it is characterized in that: described main shaft is connected with the described formula supporting seat key that narrows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320081085 CN203140431U (en) | 2013-02-22 | 2013-02-22 | Roller structure of support mandril |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320081085 CN203140431U (en) | 2013-02-22 | 2013-02-22 | Roller structure of support mandril |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203140431U true CN203140431U (en) | 2013-08-21 |
Family
ID=48967987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320081085 Expired - Fee Related CN203140431U (en) | 2013-02-22 | 2013-02-22 | Roller structure of support mandril |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203140431U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104707874A (en) * | 2015-03-23 | 2015-06-17 | 山东钢铁股份有限公司 | Self-lubricating carrier roller |
| CN108994083A (en) * | 2018-08-07 | 2018-12-14 | 北京京诚之星科技开发有限公司 | One kind embracing the inclined Three-roll plug steadier of roller |
-
2013
- 2013-02-22 CN CN 201320081085 patent/CN203140431U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104707874A (en) * | 2015-03-23 | 2015-06-17 | 山东钢铁股份有限公司 | Self-lubricating carrier roller |
| CN108994083A (en) * | 2018-08-07 | 2018-12-14 | 北京京诚之星科技开发有限公司 | One kind embracing the inclined Three-roll plug steadier of roller |
| CN108994083B (en) * | 2018-08-07 | 2024-03-29 | 北京京诚瑞信长材工程技术有限公司 | Three-roller core holding device with inclined holding roller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20140922 Granted publication date: 20130821 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20150322 Granted publication date: 20130821 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20140222 |
|
| EXPY | Termination of patent right or utility model |