CN203565472U - Mandrel supporting device for rolling pipe fitting - Google Patents
Mandrel supporting device for rolling pipe fitting Download PDFInfo
- Publication number
- CN203565472U CN203565472U CN201320787090.4U CN201320787090U CN203565472U CN 203565472 U CN203565472 U CN 203565472U CN 201320787090 U CN201320787090 U CN 201320787090U CN 203565472 U CN203565472 U CN 203565472U
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- China
- Prior art keywords
- rocking arm
- plug
- hinged
- carrying roller
- connecting rod
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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 - Lifetime
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- 238000005096 rolling process Methods 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000009785 tube rolling Methods 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 8
- 230000006835 compression Effects 0.000 abstract 5
- 238000007906 compression Methods 0.000 abstract 5
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 230000006872 improvement Effects 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The utility model discloses a mandrel supporting device for rolling a pipe fitting. The mandrel supporting device comprises a mandrel supporting frame shell, wherein the bottom end of the mandrel supporting frame shell is provided with a horizontal guiding guide rail which is vertically intersected with the rolling central line; and the mandrel supporting device also comprises a fixed guide rail which is matched with the horizontal guiding guide rail in a sliding manner and a telescopic compression mechanism which is obliquely and fixedly arranged, and the telescopic compression mechanism compresses the top side part of the mandrel supporting frame shell at the stretching state; under the oblique pressure effect of the telescopic compression mechanism, the horizontal guiding guide rail downwards presses against the fixed guide rails and is matched with the fixed guide rails in a slide manner. According to the mandrel supporting device for rolling the pipe fitting, the mandrel supporting frame shell can be fed and discharged from the side part of a rolling machine gateway, so that more convenience for replacing the roll can be realized; meanwhile, the mandrel supporting frame shell is automatically fixed in a compression manner by the telescopic compression mechanism in the rolling machine gateway, so that the automation degree is high.
Description
Technical field
The utility model relates to a kind of metal pipe material rolling equipment, particularly a kind of core rod supporting device.
Background technology
At present, in roll seamless steel tube production line, milling train is the main extensional equipment of seamless steel pipe.In tandem rolling tube machine pass forms, the outer distortion pass that roll is steel pipe, plug forms internal strain instrument (pass) in steel duct, and inside and outside pass forms roll seamless steel tube pass together, thereby can roll out the certain seamless steel pipe of wall thickness dimension.In order to roll out the uniform seamless steel pipe of wall thickness, roll pass center and plug center all require and rolling centerline inregister.Plug bracing frame supports plug for steel pipe rolling process, plug bracing frame is arranged between rolling machine frame, 2 to 3 plug bracing frames of the general layout of conventional tandem rolling tube machine, so that plug center line and rolling centerline overlap, the support accuracy of plug bracing frame and stability, affect the wall thickness accuracy of steel pipe.
Patent CN102327899 has announced a kind of plug bracing frame, utilize 2 hydraulic cylinders and a set of spiral lift to drive a set of concentric support mechanism, its driving mechanism is positioned at plug bracing frame both sides, so described in it, plug bracing frame can only be along the axial roll change of milling train, and range of application is restricted.
Patent CN203140432 has announced a kind of plug bracing frame, relies on two location that positioning step is realized plug bracing frame that are positioned at the left and right sides, and owing to all relying on manual operation, automaticity is not high, changes maintenance inconvenient.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of core rod supporting device for tube rolling, changes convenience and the automaticity of attended operation to improve plug bracing frame.
The utility model, for the core rod supporting device of tube rolling, comprises plug carriage shell, and the bottom of described plug carriage shell arranges and the staggered vertical horizontally-guided guide rail of rolling centerline; Also comprise the fixed guide being slidably matched with horizontally-guided track and the telescopic hold-down mechanism that tilts to be fixedly installed, described telescopic hold-down mechanism is stretching out the tip-end-side that is pressed on plug carriage shell under state; Under the oblique pressure effect of telescopic hold-down mechanism, described horizontally-guided guide rail is pressed against downwards on fixed guide and with fixed guide and is slidably matched.
Further, the tip-end-side of described plug carriage shell is provided with the oblique locking pressure block coordinating with telescopic hold-down mechanism.
Further, on described plug carriage shell sidewall, be provided with sidepiece positioner.
Further, described sidepiece positioner is plane positioning piece.
Further, described telescopic hold-down mechanism is hydraulic cylinder.
Further, on described plug carriage shell, be provided with roll change drag hook.
Further, be provided with the same concentric mechanism of connecting rod in described plug carriage shell, described connecting rod comprises first connecting rod, second connecting rod, the first rocking arm, the second rocking arm, the 3rd rocking arm, the first carrying roller, the second carrying roller, the 3rd carrying roller and holds hydraulic cylinder tightly with concentric mechanism;
Described the first rocking arm, the second rocking arm and the 3rd rocking arm are hinged on plug carriage shell, and three's hinged center is defined as respectively to F, B and C, and F, B and C are uniformly distributed on the same circumference concentric with rolling center;
Described first connecting rod one end is hinged on the first rocking arm, and hinged center is E, and the other end of first connecting rod is hinged on the second rocking arm, and hinged center is A; One end of described second connecting rod is hinged on the first rocking arm, and the other end of second connecting rod is hinged on the 3rd rocking arm, and hinged center is D; Line segment AB, line segment CD are parallel and equal with line segment EF three;
Described the first carrying roller, the second carrying roller and the 3rd carrying roller are separately positioned on the first rocking arm, the second rocking arm and the 3rd rocking arm, and the point that the first carrying roller, the second carrying roller and the 3rd carrying roller contact with plug is evenly distributed on the same circumference concentric with rolling center;
Described cylinder body and the piston of holding hydraulic cylinder tightly is hinged on respectively on plug carriage shell and the first rocking arm.
The beneficial effects of the utility model: the utility model is for the core rod supporting device of tube rolling, be contained on the mill housing with sidepiece roll change import and export, under telescopic hold-down mechanism retracted mode, plug carriage shell can pass in and out by the sidepiece along guide rail from mill housing, and roller replacing operation is convenient; Plug carriage shell is fixed in mill housing by telescopic hold-down mechanism automatic impaction simultaneously, and the installation of plug carriage shell fixedly automaticity is high; And this core rod supporting device is by connecting rod with concentric mechanism automatic impaction stationary core rod, and easy to operate, plug centralized positioning is accurate, high with rolling center concentricity.
Accompanying drawing explanation
Fig. 1 is that the utility model is for the structural representation of the core rod supporting device of tube rolling.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in the figure, the present embodiment, for the core rod supporting device of tube rolling, comprises plug carriage shell 1, and the bottom of described plug carriage shell 1 arranges and the staggered vertical horizontally-guided guide rail 2 of rolling centerline; Also comprise the fixed guide 3 being slidably matched with horizontally-guided track 2 and the telescopic hold-down mechanism 4 that tilts to be fixedly installed, described telescopic hold-down mechanism 4 is stretching out the tip-end-side that is pressed on plug carriage shell 1 under state; Under the oblique pressure effect of telescopic hold-down mechanism 4, described horizontally-guided guide rail 2 is pressed against downwards on fixed guide 3 and with fixed guide 3 and is slidably matched.
In the specific implementation, fixed guide 3 and telescopic hold-down mechanism 4 are fixed on mill housing, described mill housing is to be provided with the mill housing that sidepiece roll change is imported and exported.At telescopic hold-down mechanism, stretch out under state, horizontally-guided guide rail 2 is pressed against on fixed guide 3 under vertical force component effect, while plug carriage shell 1 moves to its side wall and pressure along guide rail and leans against on mill housing under horizontal component effect, thereby realize plug carriage shell 1, is fixed in mill housing; Under telescopic hold-down mechanism retracted mode, by roll change, be contained in and pull plug carriage shell 1 to move along guide rail, can shift out from mill housing sidepiece, easy to operate, automaticity is high.
As the improvement to the present embodiment, the tip-end-side of described plug carriage shell 1 is provided with the oblique locking pressure block 5 coordinating with telescopic hold-down mechanism 4, by oblique locking pressure block 5, can more accurately the oblique pressure of telescopic hold-down mechanism 4 be decomposed with the direction of guide rail parallel with perpendicular to the direction of guide rail.
As the improvement to the present embodiment, on described plug carriage shell 1 sidewall, be provided with sidepiece positioner 6, the positioner of sidepiece described in the present embodiment 6 is plane positioning piece, and certainly in different embodiments, described sidepiece positioner 6 also can be other shape.Cross together more firm being pressed against on mill housing of sidewall that sidepiece positioner 6 can make plug carriage shell 1, installation location is more accurate.
In the present embodiment, described telescopic hold-down mechanism 4 is hydraulic cylinder, and hydraulic cylinder thrust is large, controls simple; Certainly, in different embodiments, described telescopic hold-down mechanism 4 also can be other telescopic hold-down mechanisms such as cylinder or feed screw nut.
As the improvement to the present embodiment, on described plug carriage shell 1, be provided with roll change drag hook 7, by roll change drag hook 7, can shift out more easily plug carriage shell 1.
As the improvement to the present embodiment, in described plug carriage shell 2, be provided with the same concentric mechanism of connecting rod, described connecting rod comprises first connecting rod 8, second connecting rod 9, the first rocking arm 10, the second rocking arm 11, the 3rd rocking arm 12, the first carrying roller 13, the second carrying roller 14, the 3rd carrying roller 15 and holds hydraulic cylinder 16 tightly with concentric mechanism;
Described the first rocking arm 10, the second rocking arm 11 and the 3rd rocking arm 12 are hinged on plug carriage shell 2, and three's hinged center is defined as respectively to F, B and C, and F, B and C are uniformly distributed on the same circumference concentric with rolling center;
Described first connecting rod 8 one end are hinged on the first rocking arm 10, and hinged center is E, and the other end of first connecting rod 8 is hinged on the second rocking arm 11, and hinged center is A; One end of described second connecting rod 9 is hinged on the first rocking arm 10, and the other end of second connecting rod 9 is hinged on the 3rd rocking arm 12, and hinged center is D; Line segment AB, line segment CD are parallel and equal with line segment EF three;
Described the first carrying roller 13, the second carrying roller 14 and the 3rd carrying roller 15 are separately positioned on the first rocking arm 10, the second rocking arm 11 and the 3rd rocking arm 12, and the point that the first carrying roller 13, the second carrying roller 14 contact with plug with the 3rd carrying roller 15 is evenly distributed on the same circumference concentric with rolling center;
Described cylinder body and the piston of holding hydraulic cylinder 16 tightly is hinged on respectively on plug carriage shell 2 and the first rocking arm 10.
In the present embodiment, connecting rod is identical with the synchronous swing of three swing arms and the pendulum angle of concentric mechanism, thereby guaranteed that the carrying roller in three swing arms remains a fixing center (overlapping with rolling centerline) in swinging whole process, guaranteed that plug is supported on rolling centerline accurately.
In the time need to holding the plug of specific standard tightly, hold hydraulic cylinder 16 tightly and reach suitable position, drive three synchronous counter-clockwise swings of swing arm, hold plug tightly; When hollow billet process plug bracing frame, in order to get out of the way hollow billet, hold hydraulic cylinder 16 fast retractiles tightly, drive the synchronous swing clockwise of three swing arms, get out of the way hollow billet space.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (7)
1. for a core rod supporting device for tube rolling, it is characterized in that: comprise plug carriage shell, the bottom of described plug carriage shell arranges and the staggered vertical horizontally-guided guide rail of rolling centerline; Also comprise the fixed guide being slidably matched with horizontally-guided track and the telescopic hold-down mechanism that tilts to be fixedly installed, described telescopic hold-down mechanism is stretching out the tip-end-side that is pressed on plug carriage shell under state; Under the oblique pressure effect of telescopic hold-down mechanism, described horizontally-guided guide rail is pressed against downwards on fixed guide and with fixed guide and is slidably matched.
2. the plug bracing frame for tube rolling according to claim 1, is characterized in that: the tip-end-side of described plug carriage shell is provided with the oblique locking pressure block coordinating with telescopic hold-down mechanism.
3. the plug bracing frame for tube rolling according to claim 1, is characterized in that: on described plug carriage shell sidewall, be provided with sidepiece positioner.
4. the plug bracing frame for tube rolling according to claim 3, is characterized in that: described sidepiece positioner is plane positioning piece.
5. the plug bracing frame for tube rolling according to claim 1, is characterized in that: described telescopic hold-down mechanism is hydraulic cylinder.
6. the plug bracing frame for tube rolling according to claim 1, is characterized in that: on described plug carriage shell, be provided with roll change drag hook.
7. according to arbitrary described plug bracing frame for tube rolling in claim 1-6, it is characterized in that: in described plug carriage shell, be provided with the same concentric mechanism of connecting rod, described connecting rod comprises first connecting rod, second connecting rod, the first rocking arm, the second rocking arm, the 3rd rocking arm, the first carrying roller, the second carrying roller, the 3rd carrying roller and holds hydraulic cylinder tightly with concentric mechanism;
Described the first rocking arm, the second rocking arm and the 3rd rocking arm are hinged on plug carriage shell, and three's hinged center is defined as respectively to F, B and C, and F, B and C are uniformly distributed on the same circumference concentric with rolling center;
Described first connecting rod one end is hinged on the first rocking arm, and hinged center is E, and the other end of first connecting rod is hinged on the second rocking arm, and hinged center is A; One end of described second connecting rod is hinged on the first rocking arm, and the other end of second connecting rod is hinged on the 3rd rocking arm, and hinged center is D; Line segment AB, line segment CD are parallel and equal with line segment EF three;
Described the first carrying roller, the second carrying roller and the 3rd carrying roller are separately positioned on the first rocking arm, the second rocking arm and the 3rd rocking arm, and the point that the first carrying roller, the second carrying roller and the 3rd carrying roller contact with plug is evenly distributed on the same circumference concentric with rolling center;
Described cylinder body and the piston of holding hydraulic cylinder tightly is hinged on respectively on plug carriage shell and the first rocking arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320787090.4U CN203565472U (en) | 2013-12-03 | 2013-12-03 | Mandrel supporting device for rolling pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320787090.4U CN203565472U (en) | 2013-12-03 | 2013-12-03 | Mandrel supporting device for rolling pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203565472U true CN203565472U (en) | 2014-04-30 |
Family
ID=50533231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320787090.4U Expired - Lifetime CN203565472U (en) | 2013-12-03 | 2013-12-03 | Mandrel supporting device for rolling pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203565472U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057359A (en) * | 2015-07-21 | 2015-11-18 | 江苏华菱锡钢特钢有限公司 | Full-hydraulic driving core rod supporting rack |
| CN107159713A (en) * | 2017-05-27 | 2017-09-15 | 成都诚悟钢管技术有限公司 | Hot rolled seamless steel tube skew rolling mill Foreground and Background plug supports rolling mill practice, equipment and technology entirely |
| CN114453425A (en) * | 2021-12-31 | 2022-05-10 | 太原重工股份有限公司 | Double-side roll-changing continuous pipe rolling mill device adopting top positioning |
| CN114589204A (en) * | 2022-02-17 | 2022-06-07 | 中国重型机械研究院股份公司 | Core rod centering device and method of high-speed cold pilger mill |
-
2013
- 2013-12-03 CN CN201320787090.4U patent/CN203565472U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057359A (en) * | 2015-07-21 | 2015-11-18 | 江苏华菱锡钢特钢有限公司 | Full-hydraulic driving core rod supporting rack |
| CN107159713A (en) * | 2017-05-27 | 2017-09-15 | 成都诚悟钢管技术有限公司 | Hot rolled seamless steel tube skew rolling mill Foreground and Background plug supports rolling mill practice, equipment and technology entirely |
| CN114453425A (en) * | 2021-12-31 | 2022-05-10 | 太原重工股份有限公司 | Double-side roll-changing continuous pipe rolling mill device adopting top positioning |
| CN114589204A (en) * | 2022-02-17 | 2022-06-07 | 中国重型机械研究院股份公司 | Core rod centering device and method of high-speed cold pilger mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |