CN214488574U - Portable hydraulic pipe expander - Google Patents
Portable hydraulic pipe expander Download PDFInfo
- Publication number
- CN214488574U CN214488574U CN202120254460.2U CN202120254460U CN214488574U CN 214488574 U CN214488574 U CN 214488574U CN 202120254460 U CN202120254460 U CN 202120254460U CN 214488574 U CN214488574 U CN 214488574U
- Authority
- CN
- China
- Prior art keywords
- die
- cone guide
- oil cylinder
- guide die
- cone
- Prior art date
- 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.)
- Ceased
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910000746 Structural steel Inorganic materials 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
Images
Abstract
The utility model discloses a portable hydraulic pressure electric tube expander, main technical characterized in that: the tube expansion die is a round body formed by the mutual connection of the die sheets, is arranged in the connecting groove of the die sheets through a spring to fix the tube expansion die, and a convex tube expansion part for expanding tubes is arranged between the adjacent connecting grooves; the upper end part of a piston rod of the oil cylinder is provided with threads; the first cone guide die is connected with the end face of a cylinder flange of the oil cylinder through a bolt, the second cone guide die is connected with the thread of a piston rod of the oil cylinder through a threaded hole formed in the center, and the locking nut is arranged on the upper portion of the second cone guide die through the thread connected with the piston rod of the oil cylinder and used for adjusting the limiting distance of the second cone guide die; the tube expanding die is arranged between the first cone guide die and the second cone guide die; the beneficial effects are that: the butt welding of the pipeline is implemented by replacing the mode of beveling and adopting a reducing pipe, and the butt welding device can also be used for correcting the cylindricity of the pipeline and is convenient to carry.
Description
Technical Field
The utility model relates to a pipe expander, especially a portable hydraulic pressure pipe expander.
Background
In the technical field of pipeline processing, butt welding between two pipelines is usually involved, pipelines with the same pipe diameter are welded after being paired through grooves of respective ports, and the grooves of the pipelines need to be machined, so that a procedure is added, and the corresponding cost is increased; when the two pipelines with different pipe diameters are in butt welding, the pipelines are assembled and then welded through the reducer pipe fitting, so that the cost of one reducer pipe fitting is increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses it is not enough in the above-mentioned technical problem to mainly aim at overcoming, provides a portable hydraulic pressure electric tube expander.
In order to overcome the technical problem, the utility model discloses a technical scheme is:
including hydro-cylinder, bolt, first cone direction mould, expand tube mould, spring, second cone direction mould and lock nut, its characterized in that: the tube expansion die is a round body formed by the mutual connection of the die sheets, is arranged in the connecting groove of the die sheets through a spring to fix the tube expansion die, and a convex tube expansion part for expanding tubes is arranged between the adjacent connecting grooves; the upper end part of a piston rod of the oil cylinder is provided with threads; the first cone guide die is connected with the end face of a cylinder flange of the oil cylinder through a bolt, the second cone guide die is connected with the thread of a piston rod of the oil cylinder through a threaded hole formed in the center, and the locking nut is arranged on the upper portion of the second cone guide die through the thread connected with the piston rod of the oil cylinder and used for adjusting the limiting distance of the second cone guide die; the tube expanding die is arranged between the first cone guide die and the second cone guide die; when the piston rod end of the oil cylinder contracts, the second cone guide die presses the tube expansion die downwards, so that the arc-shaped cones symmetrically arranged on the die sheet are respectively matched with the outer conical surfaces of the first cone guide die and the second cone guide die, and the tube expansion part of the die sheet expands outwards.
The utility model has the advantages that: the end part of the pipeline is placed at the pipe expanding part of the die of the pipe expanding die, outward expansion of the end part of the pipeline is achieved, butt welding can be conducted on the expanded pipeline without grooving, the inner diameter of the pipeline can be inserted into the die of the pipe expanding die, the pipeline is concentric with the shaft extending part of the die, the pipeline is located through the side face of the pipe expanding part in the port and the die, correction is achieved through outward expansion of the shaft extending part of the pipeline, and the expanded pipeline is used for butt welding of the pipelines with different pipe diameters.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a front view of a portable hydraulic pipe expander of the present invention;
fig. 2 is a top view of fig. 1.
Fig. 3 is a sectional view taken along line a-a of fig. 1.
Fig. 4 is a front view of the die of the present invention.
Fig. 5 is a top view of fig. 4.
Fig. 6 is a left side view of fig. 4.
Fig. 7 is a schematic diagram of an implementation structure of the portable hydraulic pipe expander.
Detailed Description
As shown in fig. 1-7, the pipe expanding device comprises an oil cylinder 1, a bolt 2, a first cone guide die 3, a pipe expanding die 4, a spring 5, a second cone guide die 6 and a locking nut 7, wherein the pipe expanding die 4 is a round body formed by the mutual connection of die sheets 10, the pipe expanding die 4 is fixed by arranging the spring 5 in a connecting groove 11 of the die sheets 10, and a convex pipe expanding part 12 for expanding pipes is arranged between the adjacent connecting grooves 11; the upper end part of a piston rod of the oil cylinder 1 is provided with a thread 9; the first cone guide die 3 is connected with a cylinder flange end face 8 of the oil cylinder 1 through a bolt 2, the second cone guide die 6 is connected with a thread 9 of a piston rod of the oil cylinder 1 through a threaded hole arranged in the center, and the locking nut 7 is arranged on the upper portion of the second cone guide die 6 through being connected with the thread 9 of the piston rod of the oil cylinder 1 and used for adjusting the limiting distance of the second cone guide die 6; the tube expanding die 4 is arranged between the first cone guide die 3 and the second cone guide die 6; when the piston rod end of the oil cylinder 1 contracts, the second cone guiding mould 6 downwards presses the tube expanding mould 4, so that the arc conical parts 13 symmetrically arranged on the die piece 10 are respectively matched with the outer conical surfaces of the first cone guiding mould 3 and the second cone guiding mould 6, and the tube expanding part 12 of the die piece 10 outwards expands.
Furthermore, the cylinder barrel of the oil cylinder 1 is provided with the hanging lug parts 14, and the hanging lug parts 14 are symmetrically arranged on the cylinder barrel of the oil cylinder 1, so that the field movement is convenient to implement, and the carrying of travel construction is convenient. Meanwhile, the lifting lug part 14 can also be used as a connecting shaft for fixing the oil cylinder, as shown in fig. 7, the oil cylinder 11 is fixedly connected with the lug hole of the connecting seat 16 through the lifting lug part 14, and the lifting lug part 14 can rotate along the lug hole of the connecting seat 16, so that the expansion hole of the pipeline can be conveniently implemented in multiple directions.
Further, the material of the mold piece 10 is high-quality carbon structural steel, and further, the material of the mold piece 10 is 45 # steel in the high-quality carbon structural steel, and high-frequency quenching is adopted to enable the mold piece to be more wear-resistant.
The utility model realizes the pipe expansion by placing the end part of the pipeline at the pipe expansion part 12 of the matrix 10 of the pipe expansion mould 4 to realize the outward expansion of the end part of the pipeline, and further to ensure that the expanded pipeline is butt-jointed and welded; the inner diameter of the pipeline can be inserted into the die piece 10 of the tube expansion die 4, the pipeline is concentric with the shaft extension 15 in the die piece 10, the end port through which the pipeline passes is positioned with the side surface of the tube expansion part 12 in the die piece 10, and the cylindricity of the pipeline is corrected by outward expansion of the shaft extension 15, so that butt welding is facilitated; or the stroke of the second cone guide die 6 is changed by adjusting the locking nut 7 to realize outward expansion of the pipe diameter corresponding to the shaft extension 15, and the expanded pipe is used for butt welding of two pipes with different pipe diameters. When the die 10 is in work, the oil cylinder 1 is connected with one end of a hydraulic valve through a hydraulic pipeline, the other end of the hydraulic valve is connected with a hydraulic power station through the hydraulic pipeline, the piston rod of the oil cylinder 1 is contracted by controlling the hydraulic valve, the second cone guiding die 6 presses the tube expanding die 4 downwards, the arc conical parts 13 symmetrically arranged on the die sheet 10 are respectively matched with the outer conical surfaces of the first cone guiding die 3 and the second cone guiding die 6, and the tube expanding part 12 of the die sheet 10 is expanded outwards.
The piston rod of the oil cylinder 1 is extended by controlling a hydraulic valve, the second cone guide die 6 pushes the tube expansion die 4 upwards, the arc conical parts 13 symmetrically arranged on the die piece 10 are respectively separated from the outer conical surfaces of the first cone guide die 3 and the second cone guide die 6, and meanwhile, the spring 5 tightens the die piece 10 into a round body.
The utility model discloses the applicable well drilling during operation, the hole that rises of probing iron pipe, probing iron pipe butt joint back iron pipe internal diameter size is unchangeable. The welding difficulty is reduced, and the strength of the butt joint pipeline is increased. Also suitable for the butt joint of steel structure engineering iron pipes, and has wide application range.
The present invention is not limited to the precise arrangements described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (4)
1. The utility model provides a portable hydraulic electric tube expander, includes hydro-cylinder (1), bolt (2), first cone direction mould (3), expand tube mould (4), spring (5), second cone direction mould (6) and lock nut (7), its characterized in that: the tube expanding die (4) is a round body formed by the mutual connection of the die sheets (10), a spring (5) is arranged in a connecting groove (11) of the die sheets (10) to fix the tube expanding die (4), and a convex tube expanding part (12) for expanding tubes is arranged between the adjacent connecting grooves (11); the upper end part of a piston rod of the oil cylinder (1) is provided with a thread (9); the first cone guide die (3) is connected with a cylinder flange end face (8) of the oil cylinder (1) through a bolt (2), the second cone guide die (6) is connected with a thread (9) of a piston rod of the oil cylinder (1) through a threaded hole formed in the center of the second cone guide die, and a locking nut (7) is connected with the thread (9) of the piston rod of the oil cylinder (1) and arranged on the upper portion of the second cone guide die (6) and used for adjusting the limiting distance of the second cone guide die (6); the tube expanding die (4) is arranged between the first cone guide die (3) and the second cone guide die (6); when the piston rod end of the oil cylinder (1) is contracted, the second cone guide die (6) presses the tube expansion die (4) downwards, so that the arc-shaped cones (13) symmetrically arranged on the die piece (10) are respectively matched with the outer conical surfaces of the first cone guide die (3) and the second cone guide die (6), and the tube expansion part (12) of the die piece (10) is expanded outwards.
2. A portable hydraulic pipe expander as claimed in claim 1, wherein: the cylinder barrel of the oil cylinder (1) is provided with the lug hanging parts (14), and the lug hanging parts (14) are symmetrically arranged on the cylinder barrel of the oil cylinder (1).
3. A portable hydraulic pipe expander as claimed in claim 1, wherein: the material of the matrix (10) is high-quality carbon structural steel.
4. A portable hydraulic pipe expander according to claim 1 or claim 3, wherein: the material of the matrix (10) is 45-grade steel in high-quality carbon structural steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120254460.2U CN214488574U (en) | 2021-01-29 | 2021-01-29 | Portable hydraulic pipe expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120254460.2U CN214488574U (en) | 2021-01-29 | 2021-01-29 | Portable hydraulic pipe expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214488574U true CN214488574U (en) | 2021-10-26 |
Family
ID=78217569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120254460.2U Ceased CN214488574U (en) | 2021-01-29 | 2021-01-29 | Portable hydraulic pipe expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214488574U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117960943A (en) * | 2024-04-01 | 2024-05-03 | 中国重型机械研究院股份公司 | Central rod piece for ring piece bulging device with prestress and use method |
-
2021
- 2021-01-29 CN CN202120254460.2U patent/CN214488574U/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117960943A (en) * | 2024-04-01 | 2024-05-03 | 中国重型机械研究院股份公司 | Central rod piece for ring piece bulging device with prestress and use method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20240109 Decision number of declaring invalidation: 564252 Granted publication date: 20211026 |