CN115740104A - Steel pipe mouth of pipe roundness correction machine - Google Patents
Steel pipe mouth of pipe roundness correction machine Download PDFInfo
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- CN115740104A CN115740104A CN202211377726.8A CN202211377726A CN115740104A CN 115740104 A CN115740104 A CN 115740104A CN 202211377726 A CN202211377726 A CN 202211377726A CN 115740104 A CN115740104 A CN 115740104A
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- sliding wedge
- block
- steel pipe
- fixing frame
- pipe orifice
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention provides a steel pipe orifice rounding machine relating to the technical field of steel structure processing, which comprises a fixing part, a first fixing frame, a second fixing frame and a guide shaft, wherein the fixing part comprises a first fixing frame, a second fixing frame and a guide shaft; the axial adjusting part comprises a movable plate, an ejector rod and a central shaft; the radial telescopic part comprises a cylindrical sliding wedge sleeve connected with the second fixing frame, and an expansion block, an upper sliding wedge block and a lower sliding wedge block are sequentially arranged on the periphery of the sliding wedge sleeve from outside to inside; the invention utilizes the fixed mount, the ejector rod, the central shaft, the circular flange and the like to drive the lower sliding wedge block to axially move in the dovetail groove on the sliding wedge sleeve, and the upper sliding wedge block drives the height-adjusting gasket and the expansion block to radially move. The expansion block moves to the limit position, namely the standard inner diameter of the steel pipe, and the pipe orifice of the steel pipe is repaired to be circular. In the process of repairing the steel pipe, the outer diameter of the expansion block is always circular, and the circle center of the inner diameter of the steel pipe can be automatically aligned by the circle corrector during repairing, so that the roundness precision of the repaired pipe orifice of the steel pipe is ensured.
Description
Technical Field
The invention relates to the technical field of steel structure processing, in particular to a steel pipe orifice rounding machine.
Background
Seamless steel pipe or straight seam welded steel pipe can often be used in steel structural engineering, and the steel pipe can take place steel pipe both ends mouth of pipe department atress sunken or oval problem in production, transportation, can cause the wrong limit when steel pipe butt joint welding, if the wrong limit volume is too big can the component scrap, the steel pipe butt joint wrong limit still can influence welding quality and component outward appearance. In order to eliminate the butt joint misalignment of the steel pipes, the recess or ellipse of the pipe orifice of the steel pipe needs to be subjected to circle correction and repair, so that the misalignment of the butt joint of the steel pipes is less than 1 mm or even has no misalignment, the circle corrector is required to be capable of automatically correcting the circle center of the inner diameter of the steel pipe, and the requirement on circle correction precision is high. The existing steel pipe roundness correcting machine or roundness correcting machine cannot automatically align the center of the inner diameter circle of the steel pipe, the quality of the inner diameter roundness of the repaired pipe orifice of the steel pipe is poor, and the roundness of the pipe orifice of the thick-wall steel pipe cannot be corrected.
Disclosure of Invention
The invention aims to provide a steel pipe orifice rounding machine to solve the problem that existing rounding equipment is poor in repairing effect.
The invention is realized by the following steps: a steel pipe orifice rounding machine, which comprises,
the fixing part comprises a first fixing frame, a second fixing frame and a guide shaft; the guide shaft is arranged between the first fixing frame and the second fixing frame, and a first through hole is formed in the second fixing frame;
the axial adjusting part comprises a movable plate, an ejector rod and a central shaft; the movable plate is provided with a second through hole for the guide shaft to pass through, the central shaft penetrates through the first through hole, one end of the central shaft is fixedly connected with the movable plate, and the movable plate can slide along the guide shaft and drive the central shaft to move axially; two ends of the ejector rod are respectively connected with the movable plate and the second fixed frame;
the radial telescopic part comprises a cylindrical sliding wedge sleeve connected with the second fixing frame, and an expansion block, an upper sliding wedge block and a lower sliding wedge block are sequentially arranged on the periphery of the sliding wedge sleeve from outside to inside; the expansion block is detachably arranged outside the upper sliding wedge block, the contact surface of the upper sliding wedge block and the lower sliding wedge block is an inclined surface, and the upper sliding wedge block and the lower sliding wedge block can slide relatively; a plurality of dovetail grooves are uniformly distributed on the peripheral surface of the sliding wedge sleeve along the axial direction, the sliding wedge block is connected with the tail end of the central shaft and slides in the dovetail grooves along the axial direction,
preferably, a circular flange is arranged at the tail end of the central shaft, the circular flange is connected with the lower sliding wedge through a bolt, and the circular flange pushes the lower sliding wedge to move axially.
Preferably, a plurality of grooves are formed in the end face, opposite to the side of the sliding wedge sleeve, of the second fixing frame, and one end of the upper sliding wedge block is embedded into the grooves and can move along the grooves in the radial direction.
Preferably, the second fixing frame comprises a fixing plate and a cylindrical connecting sleeve, and the groove is formed in the connecting sleeve.
Preferably, a dovetail edge is arranged at the bottom of the lower sliding wedge block, and the bottom of the lower sliding wedge block is clamped in the dovetail groove; the top of gliding voussoir is provided with the second inclined plane the top of gliding voussoir is provided with the first spacing edge of outside salient.
Preferably, a first inclined surface is arranged at the bottom of the upper sliding wedge block, and the first inclined surface is in surface contact with the second inclined surface.
Preferably, an L-shaped limiting block is further arranged, one side edge of the L-shaped limiting block is connected with the side wall of the upper wedge sliding block, and the other side edge of the L-shaped limiting block is clamped at the first limiting edge of the lower wedge block.
Preferably, a first limiting structure is arranged at the groove, a second limiting edge protruding towards two sides is arranged at the end of the upper sliding wedge block, and the second limiting edge moves radially in a channel formed by the groove and the first limiting structure in an enclosed mode.
Preferably, the first limiting structure is a limiting block, and the limiting block is arranged at two side edges of the groove.
Preferably, a height-adjusting gasket is arranged between the expansion block and the upper sliding wedge block.
By adopting the technical scheme, the fixed frame, the ejector rod, the central shaft, the circular flange and the like are utilized to drive the lower sliding wedge block to axially move in the dovetail groove on the sliding wedge sleeve, the lower sliding wedge block pushes the upper sliding wedge block to radially move, and the upper sliding wedge block drives the height-adjusting gasket and the expansion block to radially move. The inner sunken or elliptical part of the repaired steel pipe orifice can contact the expansion block firstly, the expansion block moves to the limit position, namely the standard inner diameter of the steel pipe, and the steel pipe orifice is repaired to be circular. The height-adjusting gaskets can be combined into the inner diameters of steel pipes with various specifications to adapt to the steel pipes with the same specification and different wall thicknesses or the steel pipes with different specifications and different wall thicknesses. In the process of repairing the steel pipe, the outer diameter of the expansion block is always circular, and the circle center of the inner diameter of the steel pipe can be automatically aligned by the aid of the circle corrector in the repairing process, so that the roundness precision of the repaired pipe opening of the steel pipe is guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic cross-sectional structural view of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is an enlarged view of portion B of FIG. 2;
FIG. 4 is an enlarged view of section C of FIG. 3;
FIG. 5 is a schematic structural view of the slip wedge sleeve of the present invention;
FIG. 6 is a schematic view of the construction of the lower slide of the present invention;
FIG. 7 is a schematic view of the construction of the upper slide wedge of the present invention;
fig. 8 is a schematic structural diagram of the L-shaped stopper of the present invention.
In the figure: 1-a first fixing frame, 2-a guide shaft, 3-a first through hole, 4-a movable plate, 5-a top rod, 6-a central shaft, 7-a second through hole, 8-a first oilless bushing, 9-a transparent cover, 10-a fixed plate, 11-a connecting sleeve, 12-a sliding wedge sleeve, 13-a dovetail groove, 14-a sliding wedge, 15-a groove, 16-an upper sliding wedge, 17-an expansion block, 18-a second oilless bushing, 19-a first inclined plane, 20-a second inclined plane, 21-a limiting block, 22-a second limiting edge, 23-a dovetail edge, 24-a first limiting edge, 25-an L-shaped limiting block, 26-a third through hole, 27-an heightening gasket, 28-an oil cup, 29-a fixed block, 30-an eyelet bolt, 31-a tension spring and 32-a circular flange.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 8, in the conventional steel pipe, after the pipe orifice is deformed, the misalignment occurs during welding, and therefore, it is necessary to perform the round correction and repair on the pipe orifice before butt welding. The invention provides a steel pipe orifice rounding machine which comprises a fixing part, an axial adjusting part and a radial telescopic part.
The fixing part comprises a first fixing frame 1, a second fixing frame and a guide shaft 2, the guide shaft 2 is arranged between the first fixing frame 1 and the second fixing frame, and a first through hole 3 is formed in the second fixing frame. As an embodiment, the first fixing frame 1 is a plate-shaped structure, the second fixing frame is a cylindrical structure with a first through hole 3, and the relative positions of the first fixing frame and the second fixing frame are fixed. Preferably, the first through hole 3 is disposed at the center of the second fixing frame. As an embodiment, the guide shafts 2 are uniformly distributed on the end surface of the first fixing frame 1, and the number of the guide shafts is not less than 2 and the guide shafts are distributed in a centrosymmetric manner. As shown in the drawing, 4 guide shafts 2 are preferably provided, and a first fixing frame 1 and a second fixing frame are connected by a plurality of bolts.
Wherein, the axial adjustment part comprises a movable plate 4, a top rod 5 and a central shaft 6. The movable plate 4 is provided with second through holes 7 through which the guide shafts 2 pass, as shown in the figure, the number of the second through holes 7 is the same as that of the guide shafts 2, in order to make the movable plate 4 slide more smoothly, the inner wall of the second through holes 7 is provided with a first oilless bushing 8, and the end part of the second through holes 7 is provided with a transparent cover 9 to play roles of positioning and dust prevention. The excircle of the first oilless bushing 8 is in interference fit with the inner wall of the second through hole 7 of the movable plate 4, the inner circle is in clearance fit with the outer wall of the guide shaft 2, and the movable plate 4 can reciprocate along the guide shaft 2. The top rod 5 can be a cylinder, a hydraulic cylinder, or other structures with an axial telescopic function, as an embodiment, the top rod 5 used in the figure is a hydraulic cylinder, and two ends of the top rod 5 are connected with the movable plate 4 and the second fixed frame. The number of the carrier rods 5 is at least two. Furthermore, two ends of the ejector rod 5 are respectively connected with the movable plate 4 and the second fixing frame through bolts. The central shaft 6 penetrates through the first through hole 3, and one end of the central shaft is fixedly connected with the movable plate 4, when the ejector rod 5 stretches and retracts to drive the movable plate 4 to move relative to the second fixed frame, the movable plate 4 drives the central shaft 6 to move in the first through hole 3. As an embodiment, in order to facilitate installation and maintenance, the second fixing frame includes a fixing plate 10 and a cylindrical connecting sleeve 11, and the first through hole 3 penetrates through the fixing plate 10 and the connecting sleeve 11. The fixing plate 10 and the connecting sleeve 11 are connected by bolts. A second oilless bushing 18 is installed in the inner bore of the connection sleeve 11.
The radial telescopic part comprises a cylindrical sliding wedge sleeve 12 connected with a connecting sleeve 11, a plurality of dovetail grooves 13 are uniformly distributed on the outer peripheral surface of the sliding wedge sleeve 12 along the axial direction, and a lower sliding wedge block 14 is arranged in each dovetail groove 13 in a sliding manner. One end of the sliding wedge sleeve 12 is connected with the connecting sleeve 11 through a bolt, and the mutual position relation between the sliding wedge sleeve 12 and the connecting sleeve 11 is unchanged. In one embodiment, 8 dovetail grooves 13 are provided in the slide wedge sleeve 12, and the number of the lower slide wedges 14 is the same as the number of the dovetail grooves 13. The bottom of the lower wedge 14 is provided with a dovetail edge 23, and the bottom of the lower wedge 14 is clamped in the dovetail groove 13. The end face of the connecting sleeve 11, which is opposite to the side of the sliding wedge sleeve 12, is provided with a plurality of grooves 15, an upper sliding wedge 16 is embedded in each groove 15, and the upper sliding wedge 16 can move along the grooves 15 in the radial direction. The upper sliding wedge 16, the lower sliding wedge 14 and the sliding wedge sleeve 12 are sequentially arranged from outside to inside around the central shaft, a first inclined surface 19 is arranged on the lower surface of the upper sliding wedge 16, a second inclined surface 20 is arranged on the upper surface of the lower sliding wedge 14, the first inclined surface 19 and the second inclined surface 20 are opposite, and the first inclined surface 19 and the second inclined surface 20 are in surface contact and can slide relatively. A circular flange 32 is detachably provided at the other end of the center shaft 6, and the circular flange 32 is connected to the lower wedge 14 by bolts. During the axial movement of the central shaft 6, the circular flange 32 carries the lower sliding wedge 14 along with the axial movement, and further, the outer upper sliding wedge 16 moves radially inward or outward under the inclined support.
In order to limit the upper sliding wedge 16 to move only along the radial direction of the groove 15 but not move axially, the first limit structure is arranged at the groove, and the position of the end head of the upper sliding wedge 16 in the groove 15 is limited and can only move up and down along the groove 15. As an embodiment, the groove 15 may be processed into a shape with a limiting edge and a convex cross section, and a limiting plate is processed or connected to the end of the upper sliding wedge 16 to make it have a structure that can be clamped in the groove, and when a force is applied, the end of the upper sliding wedge can only move along the radial direction of the groove. As a preferred embodiment, the first limiting structure is a limiting block 21, the limiting blocks 21 are connected with the connecting sleeve 11, the limiting blocks 21 are arranged in pairs, and each pair of limiting blocks 21 are respectively located at two side edges of the groove 15. The end of the upper slide wedge 16 is provided with a second limit edge 22 protruding towards two sides, and the second limit edge 22 slides up and down in a channel formed by the inner wall of the groove and the limit block 21.
In order to ensure that the first inclined surface 19 and the second inclined surface 20 keep a fit state in the use process, the application is provided with a second limiting structure, which comprises a first limiting edge 24 which protrudes outwards and is arranged at the top of the lower wedge block 14, and the lower surface of the first limiting edge 24 is parallel to the second inclined surface 20 of the lower wedge block 14. An L-shaped limiting block 25 is respectively arranged at two sides of the upper wedge sliding block 16, one side edge of the L-shaped limiting block 25 is connected with the side wall of the upper wedge sliding block 16, and the other side edge is clamped at the first limiting edge 24. Further, the L-shaped limiting block 25 is connected to the upper wedge 16 through a bolt, as an embodiment, two threaded holes are respectively formed in two sides of the upper wedge 16, the two threaded holes are arranged in an inclined manner, one side edge of the L-shaped limiting block 25 on each side is connected to the upper wedge 16 through two bolts, the other side edge is clamped at the bottom of the first limiting edge 24, the inclination of the upper surface of the side edge is identical to the inclination of the lower surface of the first limiting edge 24, and the side edge is attached to the lower surface of the first limiting edge 24 and slides relatively. Through the comprehensive action of the groove, the limiting block, the L-shaped limiting block and the like, the inclined planes of the upper sliding wedge block and the lower sliding wedge block are always attached together without separation.
Furthermore, an expansion block 17 is provided on the upper portion of the upper slide wedge 16, and the expansion block 17 is used to directly abut against the pipe wall. A height-adjusting gasket 27 is arranged between the upper sliding wedge 16 and the expansion block 17, the number or thickness of the height-adjusting gaskets 27 is set according to the pipe diameter requirement, and the upper sliding wedge 16, the height-adjusting gaskets 27 and the expansion block 17 are connected through bolts. Therefore, the device can adapt to steel pipes with the same specification and different wall thicknesses or different specifications and different wall thicknesses.
Furthermore, an oil cup 28 is disposed on the upper sliding wedge 16 and opens an oil passage (not shown), so that the lubricating oil can reach the contact inclined surface of the upper sliding wedge and the lower sliding wedge 14 of the upper sliding wedge 16, and a layer of oil film is formed on the inclined surface, thereby preventing the upper sliding wedge 16 from directly contacting the inclined surface of the lower sliding wedge 14 to increase the inclined surface abrasion.
As an embodiment, the central shaft 6 and the movable plate 4 may be integrally formed, or a third through hole 26 coaxially disposed with the first through hole 3 may be disposed on the movable plate 4, and the central shaft 6 is inserted into the third through hole 26 and fixed by a flange, a bolt, or the like.
Furthermore, a reset auxiliary mechanism is also arranged, the reset auxiliary mechanism comprises a fixed block 29 arranged on the upper sliding wedge block 16, swing bolts 30 are respectively arranged on the fixed block 29 and the sliding wedge sleeve 12, a tension spring 31 is arranged between the two swing bolts 30, and the two ends of the tension spring 31 are hooked and hung in end holes of the swing bolts 30. Preferably, the fixing block 29 is disposed on the upper wedges 16 by bolts, and tension springs 31 are disposed on both sides of each upper wedge 16. The lower wedge 14 provides an auxiliary pulling force to allow it to be smoothly restored when it is retracted toward the center.
The working principle of the invention is as follows: the mandril 5 extends to push the movable plate 4, and the movable plate 4 moves along the guide shaft 2 to drive the central shaft 6. The central shaft 6 drives a flange and the like to push all the lower sliding wedges 14 to move and jack up the upper sliding wedges 16. The upper sliding wedge 16 drives the height-adjusting gasket 27 and the expansion block 17 on the upper part to move outwards along the radial direction, and when the expansion block 17 contacts the inner wall of the opening of the steel pipe, the repairing work is started. When the flange at the rear part contacts the sliding wedge sleeve 12, the expansion block 17 can reach the maximum radial stroke, when the expansion block 17 moves to the maximum radial stroke, the outer diameter of the expansion block 17 is the same as the inner diameter of the steel pipe, the circle center is automatically aligned by the circle straightener, and the sunken or elliptical part of the pipe orifice of the steel pipe is repaired to the standard inner diameter value. When the ram 5 is retracted, the remaining components move in opposite directions and the expanding blocks 17 are reset radially inward.
The invention utilizes the fixed mount, the ejector rod, the central shaft, the circular flange and the like to drive the lower sliding wedge block to axially move in the dovetail groove on the sliding wedge sleeve, the lower sliding wedge block pushes the upper sliding wedge block to radially move, and the upper sliding wedge block drives the height-adjusting gasket and the expansion block to radially move. The inner sunken or elliptical part of the repaired steel pipe orifice can contact the expansion block firstly, the expansion block moves to the limit position, namely the standard inner diameter of the steel pipe, and the steel pipe orifice is repaired to be circular. The height-adjusting gaskets can be combined into the inner diameters of steel pipes with various specifications to adapt to the steel pipes with the same specification and different wall thicknesses or the steel pipes with different specifications and different wall thicknesses. In the process of repairing the steel pipe, the outer diameter of the expansion block is always circular, and the circle center of the inner diameter of the steel pipe can be automatically aligned by the circle corrector during repairing, so that the roundness precision of the repaired pipe orifice of the steel pipe is ensured.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A steel pipe orifice rounding machine is characterized by comprising,
the fixing part comprises a first fixing frame, a second fixing frame and a guide shaft; the guide shaft is arranged between the first fixing frame and the second fixing frame, and the second fixing frame is provided with a first through hole;
the axial adjusting part comprises a movable plate, an ejector rod and a central shaft; the movable plate is provided with a second through hole for the guide shaft to pass through, the central shaft penetrates through the first through hole, one end of the central shaft is fixedly connected with the movable plate, and the movable plate can slide along the guide shaft and drive the central shaft to move axially; two ends of the ejector rod are respectively connected with the movable plate and the second fixed frame;
the radial telescopic part comprises a cylindrical sliding wedge sleeve connected with the second fixing frame, and an expansion block, an upper sliding wedge block and a lower sliding wedge block are sequentially arranged on the periphery of the sliding wedge sleeve from outside to inside; the expansion block is detachably arranged outside the upper sliding wedge block, the contact surface of the upper sliding wedge block and the lower sliding wedge block is an inclined surface, and the upper sliding wedge block and the lower sliding wedge block can slide relatively; the peripheral surface of the sliding wedge sleeve is uniformly provided with a plurality of dovetail grooves along the axial direction, and the sliding wedge block is connected with the tail end of the central shaft and slides in the dovetail grooves axially.
2. The steel pipe orifice rounding machine according to claim 1, wherein a circular flange is provided at an end of the center shaft, the circular flange is connected to the lower sliding wedge by a bolt, and the circular flange pushes the lower sliding wedge to move axially.
3. The steel pipe orifice rounding machine according to claim 1, wherein a plurality of grooves are provided on an end surface of the second fixing frame on a side facing the slide wedge sleeve, and one end of the upper slide wedge is embedded in the grooves and can move in a radial direction along the grooves.
4. The pipe orifice rounding machine according to claim 3, wherein the second fixing frame comprises a fixing plate and a cylindrical connecting sleeve, and the groove is formed in the connecting sleeve.
5. The steel pipe orifice rounding machine according to claim 1, wherein a dovetail edge is arranged at the bottom of the lower sliding wedge block, and the bottom of the lower sliding wedge block is clamped in the dovetail groove; the top of gliding voussoir is provided with the second inclined plane the top of gliding voussoir is provided with the first spacing edge of outside salient.
6. The steel pipe orifice rounding machine of claim 5, wherein a first inclined surface is provided at a bottom of the upper sliding wedge, and the first inclined surface is in contact with the second inclined surface.
7. The steel pipe orifice rounding machine according to claim 5, further comprising an L-shaped limiting block, wherein one side of the L-shaped limiting block is connected with the side wall of the upper sliding wedge block, and the other side of the L-shaped limiting block is clamped at the first limiting edge of the lower sliding wedge block.
8. A steel pipe orifice rounding machine according to claim 3, wherein a first stopper structure is provided at the groove, and a second stopper edge protruding to both sides is provided at the end of the upper slide wedge, and the second stopper edge radially moves in a passage surrounded by the groove and the first stopper structure.
9. The steel pipe orifice rounding machine according to claim 8, wherein the first limiting structure is a limiting block, and the limiting block is arranged at two side edges of the groove.
10. The steel pipe orifice rounding machine of claim 1, wherein a height-adjusting shim is arranged between the expansion block and the upper sliding wedge block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211377726.8A CN115740104A (en) | 2022-11-04 | 2022-11-04 | Steel pipe mouth of pipe roundness correction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211377726.8A CN115740104A (en) | 2022-11-04 | 2022-11-04 | Steel pipe mouth of pipe roundness correction machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115740104A true CN115740104A (en) | 2023-03-07 |
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ID=85356385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211377726.8A Pending CN115740104A (en) | 2022-11-04 | 2022-11-04 | Steel pipe mouth of pipe roundness correction machine |
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| Country | Link |
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| CN (1) | CN115740104A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116428882A (en) * | 2023-06-01 | 2023-07-14 | 江苏华洋新思路能源装备股份有限公司 | Furnace inner cover surface cleaning device with rounding function |
-
2022
- 2022-11-04 CN CN202211377726.8A patent/CN115740104A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116428882A (en) * | 2023-06-01 | 2023-07-14 | 江苏华洋新思路能源装备股份有限公司 | Furnace inner cover surface cleaning device with rounding function |
| CN116428882B (en) * | 2023-06-01 | 2023-09-22 | 江苏华洋新思路能源装备股份有限公司 | Furnace inner cover surface cleaning device with rounding function |
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