CN210172247U - Rolling device of welded pipe unit - Google Patents
Rolling device of welded pipe unit Download PDFInfo
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- CN210172247U CN210172247U CN201920969424.7U CN201920969424U CN210172247U CN 210172247 U CN210172247 U CN 210172247U CN 201920969424 U CN201920969424 U CN 201920969424U CN 210172247 U CN210172247 U CN 210172247U
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- upper roller
- roll
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- welded pipe
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Abstract
The utility model relates to a roll-in device of a welded pipe unit, a left roll and a right roll are fixed at the upper ends of a left roll shaft and a right roll shaft, the lower ends of the left roll shaft and the right roll shaft are supported in a left roll seat and a right roll seat through bearings, an upper roll is pressed at the top of a welded pipe, and the upper roll, the left roll and the right roll together form a roll-in channel; the upper roller is supported in the middle of an upper roller shaft through a bearing, the axis of the upper roller shaft is horizontal and vertical to the axes of the left and right roller shafts and the welded pipe, and the left end and the right end of the upper roller shaft are respectively fixed on an upper roller bracket; the rear sides of the two upper roller supports are respectively supported on the Z-direction guide rail, the tops of the two upper roller supports are mutually connected through an upper roller horizontal connecting plate, the middle part of the upper roller horizontal connecting plate is screwed with an upper roller adjusting screw rod extending upwards, the upper part of the upper roller adjusting screw rod is screwed in an upper roller adjusting nut, and the upper roller adjusting nut is supported on a rack top plate through a bearing. The device can improve the roundness of straight seam steel pipe splicing seam department, improves welding quality.
Description
Technical Field
The utility model relates to a welded tube unit, in particular to welded tube unit's roll-in device belongs to welded tube and makes auxiliary assembly technical field.
Background
The straight seam high-frequency welded steel pipe is formed by welding steel strips in a curling mode, the width of each steel strip is equal to the circumference of the steel pipe, the steel strips are placed on an uncoiler to be uncoiled and uncoiled, then the steel strips are coiled into a circular shape in a cold rolling mode, the pipe seams are welded through high-frequency induction heating to obtain welded steel pipes, the welded steel pipes are shaped and sized through sizing rollers and then rolled into circular pipes of various specifications, and the welded steel pipes can be cut into required lengths according to requirements.
In the process of cold rolling and coiling the steel strip into a circular shape, the steel strip needs to be rolled by a plurality of flat roll devices and vertical roll devices alternately. The flat roll device comprises an upper roll and a lower roll which are respectively driven by a transmission shaft, the axes of the upper roll and the lower roll are horizontal and parallel to each other, the middle parts of the upper roll and the lower roll are provided with an upper die and a lower die which are matched with each other, the left end and the right end of the upper roll and the lower roll are respectively supported in an upper roll bearing seat and a lower roll bearing seat, the lower roll bearing seats at the two ends of the lower roll are respectively and fixedly arranged at the bottom of the roll portal frame, the upper roll bearing seats at the two ends of the upper roll are respectively positioned at the upper part of the roll portal frame, and when a steel pipe passes through a.
In the same way, the vertical roll device comprises a front roll and a rear roll, wherein a front die and a rear die which are matched with each other are arranged in the middle of the front roll and the rear roll, and a steel pipe is shaped in the other direction when passing through a rolling round hole formed by surrounding the front die and the rear die. In the advancing process, the steel pipe is alternately shaped by rolling of the upper die, the lower die and the front die and the rear die, and the roundness is higher and higher.
After the steel pipe is cold rolled and shaped, the steel pipe needs to be kept in a round state by a rolling device, and high-frequency welding is carried out under the condition that two sides of a welding line are kept flat and aligned. Traditional roll-in device comprises two rolls about by, and two rolls surround out circular passageway and supply the steel pipe to pass through about, because there is the gap in the amalgamation department of controlling the roll, and the gap is located upper and lower position, and the welding seam of steel pipe also is located the top, and the welding seam just in time is located unlimited roll gap department promptly, and the perk that makes progress easily in the welding seam both sides for the roundness of welding seam department receives the influence during the welding.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the problem that exists among the prior art, provide a welded tube unit's roll-in device, can improve the roundness of straight seam steel pipe concatenation seam department, improve welding quality.
In order to solve the technical problem, the rolling device of the welded pipe unit comprises a left roller and a right roller which are clamped at the left side and the right side of a welded pipe, wherein the left roller is fixed at the upper end of a left roller shaft, the right roller is fixed at the upper end of a right roller shaft, the axes of the left roller shaft and the right roller shaft are vertical and parallel to each other, and the lower end of the left roller shaft is supported in a left roller seat through a bearing; the lower end of the right roll shaft is supported in the right roll seat through a bearing, an upper roll is pressed on the top of the welded pipe, and the upper roll, the left roll and the right roll jointly enclose a circular channel for the advancing of the welded pipe; the upper roller is supported in the middle of an upper roller shaft through a bearing, the axis of the upper roller shaft is horizontal and vertical to the axes of the left and right roller shafts and the welded pipe, and the left end and the right end of the upper roller shaft are respectively fixed on the upper roller bracket; the rear sides of the two upper roller supports are respectively supported on Z-direction guide rails, the Z-direction guide rails are respectively fixed on a vertical plate of the rack, the tops of the two upper roller supports are mutually connected through an upper roller horizontal connecting plate, the middle part of the upper roller horizontal connecting plate is screwed with an upper roller adjusting screw rod extending upwards, the upper part of the upper roller adjusting screw rod is screwed in an upper roller adjusting nut, and the upper roller adjusting nut is supported on a top plate of the rack through a bearing.
Compared with the prior art, the utility model discloses following beneficial effect has been obtained: the left and right rollers are spliced to form a large half circumference of a rolling round hole, and a small section of arc reserved at the top is completely spliced by the arc of the upper roller; because the welding seam of the welded pipe is positioned at the top, namely the arc of the upper roller is pressed on the welding seam of the welded pipe, the roundness of the welding seam can be improved, and the forming precision and the welding quality of the welded pipe are improved. The welded pipe advances along the rolling round hole and finishes welding at the same time, the upper roller rotates around the upper roller shaft, the left roller rotates around the left roller shaft, the right roller rotates around the right roller shaft, and the welded pipe is subjected to full-circle rolling shaping. The upper roll adjusting screw rod rotates in the upper roll adjusting nut, the lower end head of the upper roll adjusting screw rod can pull the upper roll horizontal connecting plate to lift, the upper roll horizontal connecting plate drives the upper roll support to lift along the Z-direction guide rail, and therefore the height of the upper roll shaft is adjusted, the rolling position of the upper roll is more accurate, and the forming precision of a welded pipe is improved.
As an improvement of the present invention, the front and rear sides of the left and right roller seats are respectively supported on an X-direction guide rail fixed on the frame, the front sides of the left and right roller seats are respectively provided with a roller seat through hole extending along the X direction, an X-direction adjusting screw is arranged in the roller seat through hole, the X-direction adjusting screw is provided with a left-handed thread section and a right-handed thread section, the left-handed thread section is screwed with a left-handed nut, and the left-handed nut is fixed on the left roller seat; a right-handed nut is screwed on the right-handed thread section and is fixed on the right roller seat; one end of the X-direction adjusting screw rod is rotatably supported in the X-direction adjusting sleeve, the outer end of the X-direction adjusting screw rod extends out of the X-direction adjusting sleeve, a square tenon is arranged at the outer end of the X-direction adjusting screw rod, threads are arranged on the periphery of the X-direction adjusting sleeve, a locking nut is screwed on the X-direction adjusting sleeve, and the locking nut is tightly pressed on the rack. When the X-direction adjusting screw rod is rotated through the square tenon, the X-direction adjusting screw rod rotates in the X-direction adjusting sleeve, but the axial position is kept unchanged, so that the left-handed nut and the right-handed nut which are matched with the X-direction adjusting screw rod are driven by the positive and negative threads on the X-direction adjusting screw rod to mutually approach and separate, the left-handed nut and the right-handed nut respectively drive the left roller seat and the right roller seat to translate along the X-direction guide rail, mutual approaching or mutual separating is realized, the left roller seat is followed by the left roller shaft, the right roller seat is also mutually approached or mutually separated in the X-direction along with the right roller seat, and therefore, the change of the center distance between the left roller and the right roller is realized, and the rolling channel is.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description, which are provided for reference and illustration purposes only and are not intended to limit the invention.
Fig. 1 is a front view of the rolling device of the welded pipe unit of the present invention.
Fig. 2 is a left side view of fig. 1.
In the figure: 1. a frame; 1a, a vertical plate of a machine frame; 1b, a rack top plate; 2. a left roller; 2a, a left roll shaft; 2b, a left roller seat; 3. a right roller; 3a, a right roll shaft; 3b, a right roller seat; an X-direction guide rail; adjusting a screw rod in the X direction; 5a, square tenon; 5b, right-handed nuts; 6, adjusting sleeve in X direction; 6a, locking a nut; 7. an upper roller; 7a, an upper roll shaft; 7b, an upper roller bracket; 7b1, horizontally connecting a roller; a Z-direction guide rail; 9. adjusting a screw rod by an upper roller; and 9a, adjusting nuts of the upper roller.
Detailed Description
As shown in fig. 1 and 2, the rolling device of the welded pipe unit of the present invention includes a left roller 2 and a right roller 3 clamped at the left and right sides of the welded pipe, the left roller 2 is fixed at the upper end of a left roller shaft 2a, the right roller 3 is fixed at the upper end of a right roller shaft 3a, the axes of the left roller shaft 2a and the right roller shaft 3a are vertical and parallel to each other, and the lower end of the left roller shaft 2a is supported in a left roller seat 2b through a bearing; the lower end of the right roll shaft 3a is supported in a right roll seat 3b through a bearing, an upper roll 7 is pressed on the top of the welded pipe, and the upper roll 7, the left roll 2 and the right roll 3 jointly enclose a circular channel for advancing the welded pipe; the upper roll 7 is supported in the middle of an upper roll shaft 7a through a bearing, the axis of the upper roll shaft 7a is horizontal and vertical to the axes of the left and right roll shafts 3a and the welded pipe, and the left and right ends of the upper roll shaft 7a are respectively fixed on an upper roll bracket 7b.
The left roller 2 and the right roller 3 are spliced to form a large half circumference of a rolling round hole, and a small section of circular arc reserved at the top is completely spliced by the arc of the upper roller 7; because the welding seam of the welded pipe is positioned at the top, namely the circular arc of the upper roller 7 is pressed on the welding seam of the welded pipe, the roundness of the welding seam can be improved, and the quality of the welded pipe is improved. The welded pipe advances along the rolling round hole and finishes welding at the same time, the upper roller 7 rotates around the upper roller shaft 7a, the left roller 2 rotates around the left roller shaft 2a, the right roller 3 rotates around the right roller shaft 3a, and the welded pipe is subjected to full-circle rolling shaping.
The rear sides of the two upper roller supports 7b are respectively supported on a Z-direction guide rail 8, the Z-direction guide rails 8 are respectively fixed on a vertical plate 1a of the frame, the tops of the two upper roller supports 7b are mutually connected through an upper roller horizontal connecting plate 7b1, the middle part of the upper roller horizontal connecting plate 7b1 is screwed with an upper roller adjusting screw rod 9 extending upwards, the upper part of the upper roller adjusting screw rod 9 is screwed in an upper roller adjusting nut 9a, and the upper roller adjusting nut 9a is supported on a top plate 1b of the frame through a bearing.
The upper roller adjusting screw 9 rotates in the upper roller adjusting nut 9a, the lower end head of the upper roller adjusting screw 9 can pull the upper roller horizontal connecting plate 7b1 to lift, and the upper roller horizontal connecting plate 7b1 drives the upper roller support 7b to lift along the Z-direction guide rail 8, so that the height of the upper roller shaft 7a is adjusted, and the rolling position of the upper roller 7 is more accurate.
The front side and the rear side of the left roller seat 2b and the right roller seat 3b are respectively supported on an X-direction guide rail 4, the X-direction guide rail 4 is fixed on the frame 1, the front sides of the left roller seat 2b and the right roller seat 3b are respectively provided with a roller seat through hole extending along the X direction, an X-direction adjusting screw rod 5 is arranged in the roller seat through hole, the X-direction adjusting screw rod 5 is provided with a left-handed thread section and a right-handed thread section, a left-handed nut is screwed on the left-handed thread section, and the left-handed nut is fixed on the left roller seat 2 b; a right-handed nut 5b is screwed on the right-handed thread section, and the right-handed nut 5b is fixed on the right roller seat 3 b; one end of the X-direction adjusting screw rod 5 is rotatably supported in the X-direction adjusting sleeve 6, the outer end of the X-direction adjusting screw rod extends out of the X-direction adjusting sleeve 6, a square tenon 5a is arranged at the outer end of the X-direction adjusting screw rod 5, threads are arranged on the periphery of the X-direction adjusting sleeve 6, a locking nut 6a is screwed on the periphery of the X-direction adjusting sleeve 6, and the locking nut 6a is tightly pressed on the rack 1.
When the X-direction adjusting screw rod 5 is rotated through the square tenon 5a, the X-direction adjusting screw rod 5 rotates in the X-direction adjusting sleeve 6, but the axial position is kept unchanged, so that the left-handed nut and the right-handed nut 5b which are matched with the X-direction adjusting screw rod 5 are driven by the positive and negative threads on the X-direction adjusting screw rod 5 to mutually approach and separate, the left-handed nut and the right-handed nut 5b respectively drive the left roller seat 2b and the right roller seat 3b to translate along the X-direction guide rail 4 to mutually approach or separate, the left roller shaft 2a follows the left roller seat 2b, the right roller shaft 3a follows the right roller seat 3b to mutually approach or separate in the X-direction, and therefore the center distance between the left roller 2 and the right roller 3 is changed, and the rolling channel is more accurate.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention. In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention. The undescribed technical features of the present invention can be realized by or using the prior art, and are not described herein again.
Claims (2)
1. The rolling device of the welded pipe unit comprises a left roller and a right roller which are clamped at the left side and the right side of a welded pipe, wherein the left roller is fixed at the upper end of a left roller shaft; the lower extreme of right roll axle passes through the bearing and supports in right roll seat, its characterized in that: an upper roller is pressed on the top of the welded pipe, and the upper roller, the left roller and the right roller jointly enclose a circular channel for the advancing of the welded pipe; the upper roller is supported in the middle of an upper roller shaft through a bearing, the axis of the upper roller shaft is horizontal and vertical to the axes of the left and right roller shafts and the welded pipe, and the left end and the right end of the upper roller shaft are respectively fixed on the upper roller bracket; the rear sides of the two upper roller supports are respectively supported on Z-direction guide rails, the Z-direction guide rails are respectively fixed on a vertical plate of the rack, the tops of the two upper roller supports are mutually connected through an upper roller horizontal connecting plate, the middle part of the upper roller horizontal connecting plate is screwed with an upper roller adjusting screw rod extending upwards, the upper part of the upper roller adjusting screw rod is screwed in an upper roller adjusting nut, and the upper roller adjusting nut is supported on a top plate of the rack through a bearing.
2. The rolling device of the welded pipe unit according to claim 1, wherein: the front side and the rear side of the left roller seat and the right roller seat are respectively supported on an X-direction guide rail which is fixed on a frame, the front sides of the left roller seat and the right roller seat are respectively provided with a roller seat through hole extending along the X direction, an X-direction adjusting screw rod is arranged in the roller seat through hole, a left-handed thread section and a right-handed thread section are arranged on the X-direction adjusting screw rod, a left-handed nut is screwed on the left-handed thread section, and the left-handed nut is fixed on the left roller seat; a right-handed nut is screwed on the right-handed thread section and is fixed on the right roller seat; one end of the X-direction adjusting screw rod is rotatably supported in the X-direction adjusting sleeve, the outer end of the X-direction adjusting screw rod extends out of the X-direction adjusting sleeve, a square tenon is arranged at the outer end of the X-direction adjusting screw rod, threads are arranged on the periphery of the X-direction adjusting sleeve, a locking nut is screwed on the X-direction adjusting sleeve, and the locking nut is tightly pressed on the rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920969424.7U CN210172247U (en) | 2019-06-26 | 2019-06-26 | Rolling device of welded pipe unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920969424.7U CN210172247U (en) | 2019-06-26 | 2019-06-26 | Rolling device of welded pipe unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210172247U true CN210172247U (en) | 2020-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920969424.7U Active CN210172247U (en) | 2019-06-26 | 2019-06-26 | Rolling device of welded pipe unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210172247U (en) |
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2019
- 2019-06-26 CN CN201920969424.7U patent/CN210172247U/en active Active
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