CN112038078B - Three-way drawing device for oil collecting pipe of transformer - Google Patents
Three-way drawing device for oil collecting pipe of transformer Download PDFInfo
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- CN112038078B CN112038078B CN202010905702.XA CN202010905702A CN112038078B CN 112038078 B CN112038078 B CN 112038078B CN 202010905702 A CN202010905702 A CN 202010905702A CN 112038078 B CN112038078 B CN 112038078B
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- cushion block
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
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Abstract
A three-way drawing device for an oil collecting pipe of a transformer belongs to the field of transformer production and comprises a connecting pipe, a base, a drawing die and a pull rod, wherein the drawing die is installed on the base, the pull rod is installed on the drawing die, and the base is arranged inside the connecting pipe. The connecting pipe is provided with a pre-opened opening, and the tee joint is drawn on the opening. The base comprises a semicircular seat and an upper opening, the upper part of the semicircular seat is provided with the upper opening, and the shape of the upper bayonet is matched with the shape of the cushion block of the drawing die. The drawing die comprises a cushion block, a top arc surface, a flaring area, a shaping area, a fillet area and a center hole, wherein the shape of the cushion block is the same as the shape of an inner hole of the connecting pipe, the cushion block is arranged on the upper opening, and the top of the cushion block is respectively provided with the top arc surface, the flaring area, the shaping area and the fillet area from top to bottom. An opening expanding area is arranged below the top arc surface, the reserved opening is gradually expanded by the opening expanding area, and a shaping area is arranged below the opening expanding area. The joint of the shaping area and the cushion block is provided with a round angle area. The pull rod comprises a threaded rod, a handle and a boss, and the threaded rod is installed in the central hole through threads.
Description
Technical Field
The invention belongs to the technical field of transformer production, and particularly relates to a drawing device for a tee joint of an oil collecting pipe of a transformer.
Background
A large amount of workload is applied to the welding of the connecting pipes in the production process of the transformer, the initial connecting pipe welding operation is to directly weld another connecting pipe after a hole is formed in the connecting pipe, and the welding mode has high requirements on welding operators and is difficult to control the welding quality. Therefore, the operation of drawing the tee joint is ideally performed on the opening in a welding mode, the other connecting pipe is directly welded at the top end of the tee joint, obviously, the operation not only reduces the welding difficulty, but also ensures the welding quality more easily. However, the three-way drawing operation is often difficult, a professional tool is needed, and an effective professional tool is not available in the current production field to complete the three-way drawing operation.
Disclosure of Invention
The invention provides a three-way drawing device for a transformer oil collecting pipe, which aims to solve the problems in the background technology.
The technical problem solved by the invention is realized by adopting the following technical scheme:
the utility model provides a transformer oil collection pipe tee bend drawing device, includes that tubulation, base, drawing die and pull rod, drawing die install on the base, and the pull rod is installed on drawing die, and the base is arranged in inside the tubulation. The connecting pipe is provided with a pre-opened opening, and the tee joint is drawn on the opening. The base comprises a semicircular seat and an upper opening, the upper part of the semicircular seat is provided with the upper opening, and the shape of the upper bayonet is matched with the shape of the cushion block of the drawing die.
The drawing die comprises a cushion block, a top arc surface, a flaring area, a shaping area, a round corner area and a central hole, wherein the shape of the cushion block is the same as the shape of an inner hole of a connecting pipe, the cushion block abuts against the inner surface of the connecting pipe in the final stage of the three-way drawing operation, the cushion block is installed on an upper opening, the top of the cushion block is respectively provided with the top arc surface, the flaring area, the shaping area and the round corner area from top to bottom, the shape of the top arc surface is the same as the shape of the inner surface of the connecting pipe, the height of the top arc surface and the height of the cushion block are designed to be mutually coordinated with the base, and when the cushion block is installed on the upper opening, the base and the drawing die can be placed into the connecting pipe together from the end of the connecting pipe. An opening expanding area is arranged below the top cambered surface, the reserved opening is gradually expanded by the opening expanding area, a shaping area is arranged below the opening expanding area, and the shaping area gradually fixes the inside of the tee joint into a straight cylinder shape at the later stage of tee joint drawing operation. The joint of the shaping area and the cushion block is provided with a fillet area, and the fillet area forms a fillet to the bottom of the tee joint at the last stage of drawing the tee joint. The horizontal projection diameter of the top cambered surface is equal to the projection diameter of the opening, and the diameter of the shaping area is equal to the inner diameter of the drawn tee joint. The pull rod comprises a threaded rod, a handle and a boss, and the threaded rod is installed in the central hole through threads.
Furthermore, the semicircular seat is in the shape of two thirds of the inner hole of the connecting pipe.
Furthermore, a pair of guide rods are arranged on the upper opening, the guide rods play a role in guiding the movement of the drawing die, a pair of guide holes are formed in the drawing die, and the guide holes and the guide rods complete the guiding work of the drawing die together.
Furthermore, the center of the drawing die is provided with a through center hole which is a threaded hole and is provided with a pull rod.
Furthermore, the bottom of the threaded rod is provided with a boss which is spherical, and when the pull rod rotates to the bottom of the central hole, the boss props against the upper surface of the base.
Furthermore, the top of the threaded rod is provided with a handle, and the pull rod can be driven to rotate by rotating the handle.
The invention has the beneficial effects that:
the invention is used for the three-way drawing operation of the transformer connecting pipe, the drawing die with unique design can well finish the three-way drawing operation, and one step can be finished.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a partial schematic view of the present invention;
FIG. 3 is an exploded view of the present invention;
FIG. 4 is an exploded view of the present invention;
in the figure: 10. the drawing die comprises a connecting pipe, 11 openings, 20 bases, 21 semicircular seats, 22 upper openings, 23 guide rods, 30 drawing dies, 31 cushion blocks, 32 top arc surfaces, 33 expanding areas, 34 shaping areas, 35 round-angle areas, 36 guide holes, 37 central holes, 40 pull rods, 41 threaded rods, 42 handles and 43 bosses.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Referring to fig. 1-4, the three-way drawing device for the transformer manifold comprises a manifold 10, a base 20, a drawing die 30 and a pull rod 40, wherein the drawing die 30 is installed on the base 20, the pull rod 40 is installed on the drawing die 30, and the base 20 is arranged inside the manifold 10.
The connecting pipe 10 is provided with a pre-opened opening 11, and a tee joint is drawn on the opening 11.
The base 20 comprises a semicircular seat 21, an upper opening 22 and a guide rod 23, the semicircular seat 21 is in the shape of two thirds of the inner hole of the connecting pipe 10, the upper part of the semicircular seat 21 is provided with the upper opening 22, the shape of the upper opening 22 is matched with the shape of a cushion block 31 of the stretching die 30, the upper opening 22 is provided with a pair of guide rods 23, and the guide rods 23 play a role in guiding the movement of the stretching die 30.
The drawing die 30 comprises a cushion block 31, a top arc surface 32, an expanding area 33, a shaping area 34, a fillet area 35, a guide hole 36 and a central hole 37, the shape of the cushion block 31 is the same as that of an inner hole of the connecting pipe 10, the cushion block 31 props against the inner surface of the connecting pipe 10 in the final stage of the three-way drawing operation, the cushion block 31 is installed on an upper opening 22, the top of the cushion block 31 is respectively provided with the top arc surface 32, the expanding area 33, the shaping area 34 and the fillet area 35 from top to bottom, the shape of the top arc surface 32 is the same as that of the inner surface of the connecting pipe 10, the heights of the top arc surface 32 and the cushion block 31 are mutually coordinated with the base 20, and when the cushion block 31 is installed on the upper opening 22, the base 20 and the drawing die 30 can be placed into the connecting pipe 10 from the end of the connecting pipe 10 together. An expanding area 33 is arranged below the top arc surface 32, the reserved opening 11 is gradually expanded by the expanding area 33, a shaping area 34 is arranged below the expanding area 33, and the shaping area 34 gradually fixes the inside of the tee joint into a straight cylinder shape at the later stage of tee joint drawing operation. The joint of the shaping area 34 and the cushion block 31 is provided with a fillet area 35, and the fillet area 35 forms a fillet to the bottom of the tee joint at the last stage of drawing the tee joint. The horizontal projection diameter of the top cambered surface 32 is equal to the projection diameter of the opening 11, and the diameter of the shaping area 34 is equal to the inner diameter of the drawn tee joint. The drawing die 30 is provided with a pair of guide holes 36, and the guide holes 36 and the guide rods 23 together complete the guiding operation of the drawing die 30. The center of the drawing die 30 is provided with a through center hole 37, the center hole 37 is a threaded hole, and a pull rod 40 is installed.
The pull rod 40 comprises a threaded rod 41, a handle 42 and a boss 43, the threaded rod 41 is installed in the central hole 37 through threads, the boss 43 is arranged at the bottom of the threaded rod 41, the boss 43 is spherical, when the pull rod 40 rotates to the bottom of the central hole 37, the boss 43 abuts against the upper surface of the base 20, the handle 42 is arranged at the top of the threaded rod 41, and the pull rod 40 can be driven to rotate by rotating the handle 42. Initially, the pull rod 40 is rotated downward, the pull rod 40 is fitted into the central hole 37, and when the pull rod 40 reaches the bottom of the central hole 37, the pull die 30 is pulled upward by continuing to rotate the pull rod 40, and when the pull die 30 is raised to the uppermost position, the three-way drawing operation is completed.
The working principle of the invention is as follows: firstly, the pull rod 40 is taken down, the drawing die 30 is installed on the base 20, positioning is completed through the guide hole 36 and the guide rod 23, the base 20 and the drawing die 30 are placed into an inner hole of the connecting pipe 10 together, the drawing die 30 and the opening 11 are aligned, the upward pull rod 40 is installed in the central hole 37, the pull rod 40 is rotated until the bottom is the lowest part, the pull rod 40 is continuously rotated until the drawing die 30 reaches the highest part, and then the three-way drawing work is completed. Of course, the top of the tee after drawing needs to be trimmed, and the operation can be more conveniently completed if the connecting pipe 10 is clamped on the bench clamp. Further, if necessary, a proper lubricating oil may be applied to the drawing die 30 to facilitate the completion of the operation and to prevent the opening 11 from being torn.
The above embodiments mainly describe the drawing device for the three-way pipe of the transformer oil collecting pipe of the present invention. While only a limited number of embodiments and features have been described, those skilled in the art will recognize that the invention can be embodied in many other forms without departing from the spirit or scope thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, and various modifications and alternative arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (5)
1. A drawing device for a three-way pipe of a transformer oil collecting pipe comprises a connecting pipe (10), a base (20), a drawing die (30) and a pull rod (40), and is characterized in that the drawing die (30) is installed on the base (20), the pull rod (40) is installed on the drawing die (30), the base (20) is arranged in the connecting pipe (10), an opening (11) which is opened in advance is formed in the connecting pipe (10), the three-way pipe is drawn on the opening (11), the base (20) comprises a semicircular seat (21) and an upper opening (22), the upper portion of the semicircular seat (21) is provided with the upper opening (22), the shape of the upper opening (22) is matched with that of a cushion block (31) of the drawing die (30), the drawing die (30) comprises a cushion block (31), a top arc surface (32), a flaring area (33), a shaping area (34), a fillet area (35) and a central hole (37), and the shape of the cushion block (31) is the same as that of an inner hole of the connecting pipe (10), the cushion block (31) is arranged on the upper opening (22), the top of the cushion block (31) is respectively provided with a top arc surface (32), a flaring region (33), a shaping region (34) and a fillet region (35) from top to bottom, the shape of the top arc surface (32) is the same as the shape of the inner surface of the connecting pipe (10), the heights of the top arc surface (32) and the cushion block (31) are in mutual coordination design with the base (20), the flaring region (33) is arranged below the top arc surface (32), the reserved opening (11) is gradually enlarged by the flaring region (33), the shaping region (34) is arranged below the flaring region (33), the joint of the shaping region (34) and the cushion block (31) is provided with a fillet region (35), the horizontal projection diameter of the top arc surface (32) is equal to the projection diameter of the opening (11), the diameter of the shaping region (34) is equal to the inner diameter of the central hole of the drawn tee, and the center of the drawing die (30) is provided with a penetrating die, the central hole (37) is a threaded hole, the pull rod (40) is installed, the pull rod (40) comprises a threaded rod (41), and the threaded rod (41) is installed in the central hole (37) through threads.
2. The transformer manifold tee pulling apparatus according to claim 1, wherein the semicircular seat (21) is in the shape of two thirds of the inner hole of the manifold (10).
3. The three-way drawing device for the transformer manifold according to claim 1, wherein a pair of guide rods (23) are arranged on the upper opening (22), a pair of guide holes (36) are arranged on the drawing die (30), and the guide holes (36) and the guide rods (23) together complete the guide work of the drawing die (30).
4. The three-way drawing device for the transformer manifold according to claim 1, wherein a boss (43) is arranged at the bottom of the threaded rod (41), and the boss (43) is spherical.
5. The three-way drawing device for the transformer manifold pipe is characterized in that a handle (42) is arranged at the top of the threaded rod (41), and the pull rod (40) can be driven to rotate by rotating the handle (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010905702.XA CN112038078B (en) | 2020-09-01 | 2020-09-01 | Three-way drawing device for oil collecting pipe of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010905702.XA CN112038078B (en) | 2020-09-01 | 2020-09-01 | Three-way drawing device for oil collecting pipe of transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112038078A CN112038078A (en) | 2020-12-04 |
| CN112038078B true CN112038078B (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010905702.XA Active CN112038078B (en) | 2020-09-01 | 2020-09-01 | Three-way drawing device for oil collecting pipe of transformer |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201618779U (en) * | 2010-01-21 | 2010-11-03 | 江阴市南方管件制造有限公司 | Ejecting device for tee branch pipes adopting hydraulic bulging |
| CN201791811U (en) * | 2010-09-17 | 2011-04-13 | 浙江海亮股份有限公司 | Improved structure for stretching device of tee pipe |
| CN204497048U (en) * | 2015-04-20 | 2015-07-22 | 国家电网公司 | Power Plant Main Transformer vacuumizing joint structure |
| CN204954668U (en) * | 2015-06-30 | 2016-01-13 | 广东立丰管道科技有限公司 | Anchor clamps of thin wall stainless steel draw tee bend pipe fitting |
| CN108162370A (en) * | 2017-12-02 | 2018-06-15 | 无锡市美尔特机械科技有限公司 | A kind of saddle stretching-machine |
| CN108421844A (en) * | 2018-05-24 | 2018-08-21 | 浙江高翔工贸有限公司 | A kind of stretching device of copper pipe threeway |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210998484U (en) * | 2019-10-28 | 2020-07-14 | 中船动力有限公司 | Diesel engine hydraulic valve seat drawing tool |
| CN111261394B (en) * | 2020-04-07 | 2021-06-08 | 江西赣电电气有限公司 | Transformer bushing installation device |
-
2020
- 2020-09-01 CN CN202010905702.XA patent/CN112038078B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201618779U (en) * | 2010-01-21 | 2010-11-03 | 江阴市南方管件制造有限公司 | Ejecting device for tee branch pipes adopting hydraulic bulging |
| CN201791811U (en) * | 2010-09-17 | 2011-04-13 | 浙江海亮股份有限公司 | Improved structure for stretching device of tee pipe |
| CN204497048U (en) * | 2015-04-20 | 2015-07-22 | 国家电网公司 | Power Plant Main Transformer vacuumizing joint structure |
| CN204954668U (en) * | 2015-06-30 | 2016-01-13 | 广东立丰管道科技有限公司 | Anchor clamps of thin wall stainless steel draw tee bend pipe fitting |
| CN108162370A (en) * | 2017-12-02 | 2018-06-15 | 无锡市美尔特机械科技有限公司 | A kind of saddle stretching-machine |
| CN108421844A (en) * | 2018-05-24 | 2018-08-21 | 浙江高翔工贸有限公司 | A kind of stretching device of copper pipe threeway |
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| Publication number | Publication date |
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| CN112038078A (en) | 2020-12-04 |
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