CN203061555U - Pipe pusher group - Google Patents
Pipe pusher group Download PDFInfo
- Publication number
- CN203061555U CN203061555U CN 201320069319 CN201320069319U CN203061555U CN 203061555 U CN203061555 U CN 203061555U CN 201320069319 CN201320069319 CN 201320069319 CN 201320069319 U CN201320069319 U CN 201320069319U CN 203061555 U CN203061555 U CN 203061555U
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- push
- roller die
- adjustable roller
- assembling
- hydraulic cylinder
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Abstract
The utility model relates to a pipe pusher group, belongs to the technical field of machinery, and particularly relates to a pipe pusher. The pipe pusher group is characterized in that a plurality of racks of adjustable roller dies on the outlet are equipped with a hydraulic automatic screwdown device; and the size of a groove can be automatically adjusted on line. Compared with the prior art, the pipe pusher group has the advantages that the sizes of the grooves of the adjustable roller dies can be automatically adjusted on line; the outer diameter and the wall thickness of the produced hollow pipe are changed; and not only the productive flexibility is improved, but also the adjustment can be fed back on line according to the size error of the outlet hollow pipe to improve the size precision of the outer diameter and the wall thickness of the hollow pipe.
Description
Technical field
The utility model relates to field of mechanical technique, particularly a kind of push pipe unit.
Background technology
In the various hot rolled seamless steel tube manufacturing technique methods, pipe pushing technology is a kind of important method wherein, its main processes is, use heating furnace that solid pipe is heated to about 1250 ° of C, by Mannesmann piercing mill pipe is worn into hollow pipe again, in hollow pipe, insert plug then, use Pipe End Throat Machine the hollow pipe head to be pressed on " step " of plug head, pushing tow tooth bar promotion plug and hollow pipe by gear drive passes through a series of roller die then, each roller die inside has been formed the pass of a circle by three passive rolls, by the extruding of roll to the outer surface of hollow pipe, the hollow pipe inner surface is crushed on the plug, tightly fits, and the outer surface of hollow pipe is because the extruding of roll, external diameter is reduced, and wall thickness is thinned.Hollow pipe and the plug finished after make on the top fit together, and are transported to the mandrel bar loosening mill place by roller-way, by mandrel bar loosening mill hollow pipe and plug are rolled, and make between hollow pipe and plug and form the gap, with taking off excellent machine plug are extracted out then.Just can produce the hollow pipe of certain external diameter and wall thickness by above a series of processes.
Push-bench is exactly the employed equipment of pipe pushing technology, by top bed, roller die, compositions such as pushing tow rackwork.The top bed is used for laying roller die, and the clamp that is had draw-in groove by both sides is formed.The effect of roller die is to constitute pass and bear the push pipe roll-force in push pipe, the general three-roller type structure that adopts, formed the pass of a sub-circular by three passive rolls, roller die is divided into fixedly two kinds of roller dies and adjustable roller die, fixedly roller die is mainly by cast steel die holder, roll, roll shaft, bearing, bearing block is formed.Adjustable roller die is Duoed the guiding mechanism of a cover wedge shape than fixing roller die, can adjust the nominal size of pass in small range manually, to change external diameter and the wall thickness of the hollow pipe after the system of top.The effect of pushing tow tooth bar be promote to have worn in advance the hollow pipe of plug with certain speed by a series of roller dies, finish top process processed.
Present existing push-bench, the pass of roller die all are to configure in advance, and external diameter and the wall thickness of the hollow pipe of production are all fixed, and can not on-line automaticly adjust.
The utility model content
The purpose of this utility model just provides a kind of push pipe unit, and its an outlet number adjustable roller die has been equipped with the automatic screwdown gear of hydraulic pressure, and the pass size dimension can on-line automaticly be adjusted.
The purpose of this utility model is to realize by such technical scheme, it includes push-bench, top bed and the fixedly roller die that is installed on the bed of top, described unit also includes the adjustable roller die assembling of handling again for the hollow pipe after fixing roller die is handled and plug, the assembling of adjustable roller die is positioned at fixedly after the roller die, adjustable roller die assembling includes big base, three balance hydraulic cylinders, three hydraulic cylinder for reduction system, a little frame and three adjustable roller bearing block assemblings, three balance hydraulic cylinders are installed on the big base, each hydraulic cylinder for reduction system is installed on the balance hydraulic cylinder of a correspondence, three adjustable roller bearing block assemblings are installed on the little frame, little frame is arranged on the big base, and each adjustable roller bearing block assembling is installed in the clutch end of a hydraulic cylinder for reduction system.
Further, little frame is provided with the machine outside track, and big base is provided with the machine inner orbit, and the machine outside track matches with the machine inner orbit, and little frame is installed on the big base.
Further, described push-bench includes the push-bench fuselage, is arranged on the pushing tow tooth bar of body bottom surface, the gear that is meshed with the pushing tow tooth bar and be arranged on the track that body bottom surface is used for sliding machine body, and the push-bench end face is provided with the push rod for the pushing tow plug.
Owing to adopted technique scheme, the utlity model has following advantage:
The pass size of the adjustable roller die of the utility model can on-line automaticly be adjusted, change external diameter and the wall thickness of the hollow pipe of producing, the production flexibility strengthens, and can adjust according to the scale error online feedback of outlet hollow pipe, improves the external diameter of hollow pipe and the dimensional accuracy of wall thickness.
Other advantages of the present utility model, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on being apparent to those skilled in the art to investigating hereinafter, perhaps can from practice of the present utility model, obtain instruction.Target of the present utility model and other advantages can realize and obtain by following specification and claims.
Description of drawings
Description of drawings of the present utility model is as follows.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the fixing structural representation of roller die;
Fig. 3 is adjustable roller die assembled construction schematic diagram;
Fig. 4 is adjustable roller die assembly and disassembly view;
Fig. 5 is first kind of structural representation of adjustable roller bearing block assembling;
Fig. 6 is second kind of structural representation of adjustable roller bearing block assembling.
Among the figure: 1. gear; 2. pushing tow tooth bar; 3. track; 4. push rod; 5. plug; 6. hollow pipe; 7. push up bed; 8. fixing roller die; 9. adjustable roller die assembling; 10. base; 11. stationary roll bearing block assembling; 12. big base; 13. hydraulic cylinder for reduction system; 14. adjustable roller bearing block assembling; 15. little frame; 16. machine inner orbit; 17. machine outside track; 18. balance hydraulic cylinder; 19. roll shaft; 20. thrust bearing device; 21. roll; 22. bearing; 23. intermediate sleeve; 24. primary nut; 25. big nut; 26. adapter sleeve; 27. locating ring platform I; 28. locating ring platform II.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
A kind of push pipe unit, include push-bench, top bed 7 and the fixedly roller die 8 that is installed on the top bed 7, described unit also includes adjustable roller die 9 assemblings of handling again for the hollow pipe 6 after fixing roller die 8 is handled and plug 5, adjustable roller die assembling 9 is positioned at fixedly after the roller die 8, adjustable roller die assembling 9 includes big base 12, three balance hydraulic cylinders 18, three hydraulic cylinder for reduction system 13, a little frame 15 and three adjustable roller bearing block assemblings 14, three balance hydraulic cylinders 18 are installed on the big base 12, each hydraulic cylinder for reduction system 13 is installed on the balance hydraulic cylinder 18 of a correspondence, three adjustable roller bearing block assemblings 14 are installed on the little frame 15, little frame 15 is arranged on the big base 12, and each adjustable roller bearing block assembling 14 is installed in the clutch end of a hydraulic cylinder for reduction system 13.
During work, the hollow pipe 6 that penetrates plug 5 enters fixedly roller die 8 under the promotion of push-bench, enters adjustable roller die assembling 9 again.Adjustable roller die assembling 9 is by adjusting three hydraulic cylinder for reduction system 13, can change the position of adjustable roller bearing block assembling 14, thereby the pass size of roller die assembling 9 that online adjustment is adjustable, the pass of different sizes can be produced the hollow pipe 6 of different wall and size, strengthens production flexibility and the accuracy of hollow pipe 6.Wherein hydraulic cylinder for reduction system 13 and balance hydraulic cylinder 18 are installed on the big base 12, adjustable roller bearing block assembling 14 is installed in the little frame 15, the cylinder head of hydraulic cylinder for reduction system 13 and adjustable roller bearing block assembling 14 is in the same place by plane contact, the cylinder head of balance hydraulic cylinder 18 is held the groove in the adjustable roller bearing block assembling 14, the bottom surface of adjustable roller bearing block assembling 14 and the cylinder head of hydraulic cylinder for reduction system 13 are fitted fully, and adjustable roller bearing block assembling 14 can realize depressing and lifting under the drive of hydraulic cylinder for reduction system 13.
Described push-bench includes the push-bench fuselage, is arranged on the pushing tow tooth bar 2 of body bottom surface, the gear 1 that is meshed with pushing tow tooth bar 2 and be arranged on the track 3 that body bottom surface is used for sliding machine body, and the push-bench end face is provided with the push rod 4 for pushing tow plug 5.Gear 1 by pushing tow tooth bar 2 drive the push-bench fuselages in orbit before and after motion repeatedly, push rod 4 heads into plug 5 and hollow pipe 6 under the drive of push-bench fuselage fixedly that roller die 8 and adjustable roller die assemble in 9 successively.
Fixedly roller die 8 can include base 10 and three stationary roll bearing blocks assemblings 11 that are installed on the base 10, stationary roll bearing block assembling 11 includes roll shaft 19, be arranged on the thrust bearing device 20 of roll shaft 19 ends, be installed in roll 21 on the roll shaft 19, be installed in bearing 22 and intermediate sleeve 23 on the roll shaft 19, and intermediate sleeve 23 is installed between roll shaft 19 and the bearing 22.
During work, the roll 21 in three stationary roll bearing blocks assembling 11 surrounds a perforation, and plug 5 and hollow pipe 6 are finished roller die work by perforation; In the time of needs dismountings roll 21, at first stationary roll bearing block assembling 11 is taken out from base 10, after removing thrust bearing device 10, big nut 25 and primary nut 24 successively, with intermediate sleeve 23 and bearing 22 overall pulling down from the roll shaft 19, just can change roll 21 again.Need not do any operation to bearing 22, bearing 22 avoids the dismounting damage, can effectively protect bearing 22, guarantees its precision, and simultaneously, the utility model can also reduce to change the workload of roll 21.
Fixedly roller die 8 can also include base 10 and three stationary roll bearing blocks assemblings 11 that are installed on the base 10, stationary roll bearing block assembling 11 includes roll shaft 19, be arranged on the thrust bearing device 20 of roll shaft 19 ends, be installed in the roll 21 on the roll shaft 19, be installed in bearing 22 and adapter sleeve 26 on the roll shaft 19, on roll shaft 19, be with locating ring platform I 27 and locating ring platform II 28 respectively, roll shaft 19 between locating ring platform I 27 and locating ring platform II 28 is equipped with spline pair, adapter sleeve 26 is installed on the roll shaft 19 by spline pair, and the outer wall of adapter sleeve 26 and roll 21 inwalls adopt the cylindrical interference tight fit.In roll 21 inwalls and 19 structures that adapter sleeve 26 is set of roll shaft, the inwall of adapter sleeve 26 and 19 employing locating rings of roll shaft platform location, adopt spline pair to transmit moment of torsion, adopt the cylindrical interference tight fit between the inwall of the outer wall of adapter sleeve 26 and roll 21, in the time of each dismounting roll 21, only old roll 21 and adapter sleeve 26 assembly parts integral body need be taken off from roll shaft, load onto new roll 21 and adapter sleeve 26 assembly parts then, because roll shaft 21 and 26 tight fits that do not have the big magnitude of interference of adapter sleeve, dismounting and assembling roll 21 are just speed and convenience.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of the technical program, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (3)
1. push pipe unit, include push-bench, top bed and the fixedly roller die that is installed on the bed of top, it is characterized in that: described unit also includes the adjustable roller die assembling of handling again for the hollow pipe after fixing roller die is handled and plug, the assembling of adjustable roller die is positioned at fixedly after the roller die, adjustable roller die assembling includes big base, three balance hydraulic cylinders, three hydraulic cylinder for reduction system, a little frame and three adjustable roller bearing block assemblings, three balance hydraulic cylinders are installed on the big base, each hydraulic cylinder for reduction system is installed on the balance hydraulic cylinder of a correspondence, three adjustable roller bearing block assemblings are installed on the little frame, little frame is arranged on the big base, and each adjustable roller bearing block assembling is installed in the clutch end of a hydraulic cylinder for reduction system.
2. a kind of push pipe unit as claimed in claim 1, it is characterized in that: little frame is provided with the machine outside track, and big base is provided with the machine inner orbit, and the machine outside track matches with the machine inner orbit, and little frame is installed on the big base.
3. a kind of push pipe unit as claimed in claim 1, it is characterized in that: described push-bench includes the push-bench fuselage, is arranged on the pushing tow tooth bar of body bottom surface, the gear that is meshed with the pushing tow tooth bar and be arranged on the track that body bottom surface is used for sliding machine body, and the push-bench end face is provided with the push rod for the pushing tow plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320069319 CN203061555U (en) | 2013-02-06 | 2013-02-06 | Pipe pusher group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320069319 CN203061555U (en) | 2013-02-06 | 2013-02-06 | Pipe pusher group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203061555U true CN203061555U (en) | 2013-07-17 |
Family
ID=48760381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320069319 Expired - Fee Related CN203061555U (en) | 2013-02-06 | 2013-02-06 | Pipe pusher group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203061555U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071680A (en) * | 2013-02-06 | 2013-05-01 | 中冶赛迪工程技术股份有限公司 | Pipe jacking machine unit |
| CN106238497A (en) * | 2015-06-09 | 2016-12-21 | Sms集团股份有限公司 | Manufacture the method for metal tube, seamless pipe apparatus operation method, push-bench, seamless pipe equipment |
| CN116890033A (en) * | 2023-09-11 | 2023-10-17 | 江苏常宝钢管股份有限公司 | Preparation method of pipe |
-
2013
- 2013-02-06 CN CN 201320069319 patent/CN203061555U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071680A (en) * | 2013-02-06 | 2013-05-01 | 中冶赛迪工程技术股份有限公司 | Pipe jacking machine unit |
| CN106238497A (en) * | 2015-06-09 | 2016-12-21 | Sms集团股份有限公司 | Manufacture the method for metal tube, seamless pipe apparatus operation method, push-bench, seamless pipe equipment |
| CN116890033A (en) * | 2023-09-11 | 2023-10-17 | 江苏常宝钢管股份有限公司 | Preparation method of pipe |
| CN116890033B (en) * | 2023-09-11 | 2023-12-19 | 江苏常宝钢管股份有限公司 | Preparation method of pipe |
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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 |
Granted publication date: 20130717 Termination date: 20160206 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |