CN212598088U - Device for improving radian of end part of rolled steel plate - Google Patents
Device for improving radian of end part of rolled steel plate Download PDFInfo
- Publication number
- CN212598088U CN212598088U CN202021360408.7U CN202021360408U CN212598088U CN 212598088 U CN212598088 U CN 212598088U CN 202021360408 U CN202021360408 U CN 202021360408U CN 212598088 U CN212598088 U CN 212598088U
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- lower bearing
- bearing platform
- sliding block
- arc
- upper sliding
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Abstract
The utility model discloses a device for improving the radian of the end part of a rolled steel plate, which comprises an upper beam (1), wherein two ends of the upper beam (1) are respectively provided with a stand column (2) connected with the ground, the bottom of the upper beam (1) is provided with a main oil cylinder (3) outputting downwards, the output end of the main oil cylinder (3) is provided with an upper slide block (4), the bottom surface of the upper slide block (4) is provided with a first cambered surface (5), the lower part of the upper slide block (4) is provided with a lower bearing platform (6) connected with the ground, and the top surface of the lower bearing platform (6) is provided with a second cambered surface (7); one side of the lower bearing platform (6) is provided with a carrier roller platform (8), and the carrier roller platform (8) is provided with a plurality of rotatable carrier rollers (9). The utility model has the advantages of can suppress out great radian at the steel sheet tip, can guarantee penstock quality and reduction in production cost.
Description
Technical Field
The utility model belongs to the production facility of penstock that hydraulic and hydroelectric engineering used especially relates to a device for improving system steel sheet tip radian.
Background
A drainage system and a tail water system of water conservancy and hydropower engineering (particularly pumped storage power station engineering) usually adopt pressure steel pipes, the inner diameter of each pressure steel pipe is 2240 plus 6000mm, the diameters of the pressure steel pipes are various, the pressure steel pipes are usually made by plate coiling and plate coiling of a plate coiling machine, steel plates mainly comprise Q345R, 600 MPa-grade quenched and tempered steel or 800 MPa-grade quenched and tempered steel, the thickness of the steel plates is various, and the steel plates have the characteristics of super thickness, high strength and high bending difficulty. The end radian of the rolled steel plate is small due to the fact that the end of the steel plate is difficult to be effectively rolled by the plate rolling machine, the roundness of the rolled steel plate is poor, the amount of deviation of the butt-joint radial misalignment of the circular seam is large, the pressure steel pipe is difficult to be obtained by circle combination, even if the circle is successfully combined, the obtained pressure steel pipe is poor in roundness, large in deviation of the butt-joint radial misalignment of the circular seam, difficult to meet the requirements of the specification and unqualified. Therefore, the end of the rolled steel plate needs to be cut off, and then rounding is performed, however, the end is cut off to easily cause cutting deviation, so that the two ends of the steel plate are difficult to align, the formed cutting line is difficult to keep straight, the diameter of the pressure steel pipe obtained by rounding is difficult to deviate, the quality of the pressure steel pipe is difficult to ensure, waste materials are generated by cutting, raw materials are wasted, and the production cost is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a device for improving system steel sheet tip radian of book. The utility model has the advantages of can suppress out great radian at the steel sheet tip, can guarantee penstock quality and reduction in production cost.
The steel sheet is earlier with the utility model discloses to tip press forming with veneer reeling machine preparation penstock again, have penstock quality easily guarantee with the lower advantage of manufacturing cost.
The technical scheme of the utility model: the device for improving the radian of the end part of the rolled steel plate comprises an upper beam, wherein two ends of the upper beam are respectively provided with an upright post connected with the ground, the bottom of the upper beam is provided with a main oil cylinder for outputting downwards, the output end of the main oil cylinder is provided with an upper sliding block, the bottom surface of the upper sliding block is provided with a first cambered surface, a lower bearing platform connected with the ground is arranged below the upper sliding block, and the top surface of the lower bearing platform is provided with a second cambered surface; and a carrier roller platform is arranged on one side of the lower bearing platform, and a plurality of rotatable carrier rollers are arranged on the carrier roller platform.
In the device for improving the radian of the end part of the rolled steel plate, the number of the main oil cylinders is two, the section of the upper sliding block is T-shaped, the bottom of the upper sliding block is provided with an arc-shaped pressing bedplate, the first arc surface is arranged on the pressing bedplate, and the two sides of the upper sliding block are provided with first stiffening rib plates.
In the device for improving the radian of the end part of the rolled steel plate, the lower bearing platform is provided with the arc-shaped lower bearing platform plate, the second arc surface is arranged on the lower bearing platform plate, and the bottom of the lower bearing platform plate is provided with the second stiffening rib plate connected with the lower bearing platform.
In the device for improving the radian of the end part of the rolled steel plate, the side wall of the upper sliding block is provided with the pointer, and one side of the pointer is provided with the scale fixed with the stand column.
The device for improving the radian of the end part of the rolled steel plate further comprises a plurality of gaskets.
Compared with the prior art, the utility model discloses a push down platen and the mutual extrusion of lower bolster board, the tip that makes the steel sheet that is difficult to convolute by the plate bending machine curls and forms great radian, it rolls up the board to be rolled up by the plate bending machine again, the steel sheet circularity that obtains is good, the radial misalignment deviation volume of circumferential weld department butt joint is little, the corresponding circularity of the pressure steel pipe that from this group circle obtained is good, the radial misalignment deviation volume of circumferential weld department butt joint is little, accord with the requirement of rule standard, the quality of pressure steel pipe is easily guaranteed, also need not the tip of excision steel sheet, raw and other materials have been saved, and the production cost is reduced. Can make the steel sheet be in through bearing roller platform the utility model discloses an it is comparatively easy to remove, improves suppression efficiency. The size of radian is suppressed to the adjustable steel sheet tip through the gasket, thereby makes the utility model is suitable for a pressure steel pipe's of multiple diameter specification preparation.
Therefore, the utility model has the advantages of can suppress out great radian at the steel sheet tip, can guarantee penstock quality and reduction in production cost.
Drawings
FIG. 1 is a front view of the present invention
Fig. 2 is a left side view of the present invention.
The labels in the figures are: 1-upper beam, 2-upright column, 3-main oil cylinder, 4-upper slide block, 5-first arc surface, 6-lower bearing platform, 7-second arc surface, 8-roller platform, 9-roller, 10-lower press platen, 11-first stiffening rib plate, 12-lower bearing platen, 13-second stiffening rib plate, 14-pointer, 15-scale and 16-gasket.
Detailed Description
The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.
Examples are given. A device for improving end portion radian of rolled steel plates, as shown in fig. 1, comprises an upper beam 1, wherein two ends of the upper beam 1 are respectively provided with a stand column 2 connected with the ground, the bottom of the upper beam 1 is provided with a main oil cylinder 3 outputting downwards, the output end of the main oil cylinder 3 is provided with an upper sliding block 4, the bottom surface of the upper sliding block 4 is provided with a first cambered surface 5, the lower part of the upper sliding block 4 is provided with a lower bearing platform 6 connected with the ground, and the top surface of the lower bearing platform 6 is provided with a second cambered surface 7.
And a carrier roller platform 8 is arranged on one side of the lower bearing platform 6, and a plurality of rotatable carrier rollers 9 are arranged on the carrier roller platform 8. The idler platform 8 is prior art.
The two main oil cylinders 3 are provided, the section of the upper sliding block 4 is T-shaped, the bottom of the upper sliding block 4 is provided with an arc-shaped lower pressing bedplate 10, the first arc surface 5 is arranged on the lower pressing bedplate 10, and first stiffening rib plates 11 are arranged on two sides of the upper sliding block 4.
The lower bearing platform 6 is provided with an arc-shaped lower bearing platform plate 12, the second arc surface 7 is arranged on the lower bearing platform plate 12, and the bottom of the lower bearing platform plate 12 is provided with a second stiffening rib plate 13 connected with the lower bearing platform 6.
And a pointer 14 is arranged on the side wall of the upper sliding block 4, and a scale 15 fixed with the upright post 2 is arranged on one side of the pointer 14.
A number of shims 16 are also included. The thickness specification of gasket 16 has 2mm, 5mm, 10mm, 15mm, 20mm and 25mm, and the width of gasket 16 is 30mm, and length 3000 mm.
The maximum nominal pressure of the main oil cylinder 3 is 4000KN, and the stroke of the idle cylinder is 700 mm; the width of the lower bearing platform plate is 3040mm, and the height from the ground is 600 mm; the radius of the second arc surface 7 is 2900mm, and the arc length is 700 mm; the width of the upper sliding block 4 is 3040 mm; the radius of the first cambered surface 5 is 2900mm, and the arc length is 400 mm.
The working principle is as follows: taking the production of a pressure steel pipe with an inner diameter of 6000mm as an example, the end of a steel plate for producing the pressure steel pipe is press-formed. The steel plate is placed on the carrier roller platform 8 by a gantry crane and moves to the upper part of the lower bearing platform through the carrier roller 9. The pipe diameter of 6000mm needs the pressure head 720mm, and the each end of steel sheet needs the suppression 720mm long, divides 8 sections press forming, press forming length 90mm each time.
During each pressing forming, the main oil cylinder 3 drives the lower pressing platen 10 to move downwards through the upper slide block 4, the steel plate is pressed on the lower bearing platen 12, the steel plate is bent, the ruler on one side is observed, the accuracy of the pressing stroke of the main oil cylinder 3 is ensured, and the main oil cylinder retracts when reaching the required stroke. And (3) forming for three times according to each section of pressing, measuring the forming degree of the steel plate at the arc pressing section by adopting a standard sample plate after pressing, judging that the gap deviation is not more than 2mm, pushing forwards after checking to meet the design requirement, pressing the steel plate at the lower section, and repeating the cycle until all forming in 8 sections of pressing head areas reach the standard. For pressure steel pipes with other pipe diameters, corresponding gaskets are symmetrically placed on the lower bearing plate according to the pipe diameters and the plate thicknesses, the radian of a steel plate in a pressure head area is guaranteed by adjusting the thickness of the gaskets and the placement intervals of the gaskets, and the positions where the gaskets are required to be placed for different pipe diameters are obtained according to tests.
The utility model has the advantages of can suppress out great radian at the steel sheet tip, can guarantee penstock quality and reduction in production cost.
Claims (5)
1. A device for improving roll up system steel sheet tip radian, its characterized in that: the lifting device comprises an upper beam (1), wherein two ends of the upper beam (1) are respectively provided with an upright post (2) connected with the ground, the bottom of the upper beam (1) is provided with a main oil cylinder (3) outputting downwards, the output end of the main oil cylinder (3) is provided with an upper sliding block (4), the bottom surface of the upper sliding block (4) is provided with a first cambered surface (5), a lower bearing platform (6) connected with the ground is arranged below the upper sliding block (4), and the top surface of the lower bearing platform (6) is provided with a second cambered surface (7); one side of the lower bearing platform (6) is provided with a carrier roller platform (8), and the carrier roller platform (8) is provided with a plurality of rotatable carrier rollers (9).
2. The device for increasing the arc of the end of a rolled steel sheet according to claim 1, wherein: the two main oil cylinders (3) are provided, the section of the upper sliding block (4) is T-shaped, the bottom of the upper sliding block (4) is provided with an arc-shaped lower pressing bedplate (10), the first arc surface (5) is arranged on the lower pressing bedplate (10), and first stiffening rib plates (11) are arranged on two sides of the upper sliding block (4).
3. The device for increasing the arc of the end of a rolled steel sheet according to claim 1, wherein: the lower bearing platform (6) is provided with an arc-shaped lower bearing platform plate (12), the second arc surface (7) is arranged on the lower bearing platform plate (12), and the bottom of the lower bearing platform plate (12) is provided with a second stiffening rib plate (13) connected with the lower bearing platform (6).
4. The device for increasing the arc of the end of a rolled steel sheet according to claim 1, wherein: the side wall of the upper sliding block (4) is provided with a pointer (14), and one side of the pointer (14) is provided with a scale (15) fixed with the upright post (2).
5. The device for increasing the arc of the end of a rolled steel sheet according to claim 1, wherein: also includes a plurality of shims (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021360408.7U CN212598088U (en) | 2020-07-13 | 2020-07-13 | Device for improving radian of end part of rolled steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021360408.7U CN212598088U (en) | 2020-07-13 | 2020-07-13 | Device for improving radian of end part of rolled steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212598088U true CN212598088U (en) | 2021-02-26 |
Family
ID=74706851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021360408.7U Expired - Fee Related CN212598088U (en) | 2020-07-13 | 2020-07-13 | Device for improving radian of end part of rolled steel plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212598088U (en) |
-
2020
- 2020-07-13 CN CN202021360408.7U patent/CN212598088U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20210226 Termination date: 20210713 |