MD4168B1 - Device and process profiling helical shafts - Google Patents
Device and process profiling helical shaftsInfo
- Publication number
- MD4168B1 MD4168B1 MDA20100093A MD20100093A MD4168B1 MD 4168 B1 MD4168 B1 MD 4168B1 MD A20100093 A MDA20100093 A MD A20100093A MD 20100093 A MD20100093 A MD 20100093A MD 4168 B1 MD4168 B1 MD 4168B1
- Authority
- MD
- Moldova
- Prior art keywords
- springs
- fixed
- external
- profiling
- workpiece
- Prior art date
Links
Landscapes
- Soil Working Implements (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention relates to mechanical engineering, namely to the profiling of helical surfaces.The device for profiling helical shafts includes a holder (1), on which is fixed a perforated hollow shaft (2), at one end of which, with the possibility of rotation, is placed a slotted disc (3) with a handle (4) to fix the operating position and a fixed retainer (5) with two positions. At the other end of the perforated hollow shaft (2) is rigidly fixed a bearing (6) and another slotted disc (7). Between the slotted disks (3, 7) are staggered internal (8) and external (13) springs, with the possibility of placement between them the workpiece (17) for profiling. The internal springs (8) are fixed to the disks (3, 7) through slots by means of retainer plates (9, 10) with bolts (11) at one end of the shaft (2) and with pins (12) at the opposite end. The external springs (13) are fixed to the disks (3, 7) through slots by means of retainer plates (14, 15) with bolts (16). The external springs (13) are encompassed by wrapping springs (18). Inside the perforated hollow shaft (2) is placed a heating element (19).The process, realized with the help of the said device, consists in the plastic deformation of workpiece (17) by means of a heat-transfer agent capable to communicate the desired temperature to deformation. The workpiece (17), when it is rotated, by means of springs (8, 13, 18), is communicated a pressure force. The number of internal (8) and external (13) springs and their shape is selected depending on the number of inputs and the desired profile. Cooling of the piece is performed in the open air or by means of a cooling agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDA20100093A MD4168C1 (en) | 2010-08-09 | 2010-08-09 | Device and process profiling helical shafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDA20100093A MD4168C1 (en) | 2010-08-09 | 2010-08-09 | Device and process profiling helical shafts |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| MD20100093A2 MD20100093A2 (en) | 2012-02-29 |
| MD4168B1 true MD4168B1 (en) | 2012-05-31 |
| MD4168C1 MD4168C1 (en) | 2012-12-31 |
Family
ID=45815369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MDA20100093A MD4168C1 (en) | 2010-08-09 | 2010-08-09 | Device and process profiling helical shafts |
Country Status (1)
| Country | Link |
|---|---|
| MD (1) | MD4168C1 (en) |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU105793A1 (en) * | 1950-07-07 | 1956-11-30 | Б.Ф. Беляков | Machine for the manufacture of metal seamless hoses with corrugations made along a helix |
| CS231266B1 (en) * | 1981-12-16 | 1984-10-15 | Josef Svercl | Forming claws for making of spiral parts from tubular half-products |
| SU1616743A1 (en) * | 1988-08-01 | 1990-12-30 | Уральский политехнический институт им.С.М.Кирова | Method of producing round tubes |
| SU1703584A1 (en) * | 1989-01-24 | 1992-01-07 | Армавирский государственный педагогический институт | Screw of spiral conveyer and method of its manufacture |
| SU1808437A1 (en) * | 1991-01-14 | 1993-04-15 | Vsesoyuznyj Ni I Kt I Trubnoj | Process of manufacture of welded profile pipes |
| RU2038998C1 (en) * | 1991-02-12 | 1995-07-09 | Дальневосточный научно-исследовательский и проектно-конструкторский институт механизации и электрификации сельского хозяйства | Method of manufacture of screw for screw conveyor |
| BE1007097A5 (en) * | 1992-08-25 | 1995-03-14 | Forges De Courcelles Centre Sa | Method for producing parts no helical. |
| DE4323759A1 (en) * | 1993-07-15 | 1995-01-19 | Artemis Kautschuk Kunststoff | Process for the production of rotors for eccentric screw pumps |
| RU2121405C1 (en) * | 1995-12-20 | 1998-11-10 | Акционерное общество "Лукойл-Башкортостан" | Method for making screw parts and apparatus for performing the same |
| US5771726A (en) * | 1996-08-28 | 1998-06-30 | Kenney Manufacturing Company | Apparatus and method for twisting hollow rods |
| CA2296098C (en) * | 1997-07-18 | 2007-01-30 | Cosma International Inc. | Hydroforming of a tubular blank having an oval cross section and hydroforming apparatus |
| RU2144447C1 (en) * | 1998-03-31 | 2000-01-20 | Орловский государственный технический университет | Apparatus for cutting helical surface with constant depth and variable pitch |
| RU2310537C2 (en) * | 2005-06-30 | 2007-11-20 | Григорий Иванович Николаев | Universal bending apparatus for producing blanks with similar fragments repeated along the whole length of blank |
| GB2463482B (en) * | 2008-09-12 | 2012-05-02 | Tanjung Citech Uk Ltd | A heat exchange unit |
-
2010
- 2010-08-09 MD MDA20100093A patent/MD4168C1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| MD4168C1 (en) | 2012-12-31 |
| MD20100093A2 (en) | 2012-02-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG4A | Patent for invention issued | ||
| KA4A | Patent for invention lapsed due to non-payment of fees (with right of restoration) | ||
| NF4A | Restoration of lapsed patent for invention | ||
| KA4A | Patent for invention lapsed due to non-payment of fees (with right of restoration) | ||
| MM4A | Patent for invention definitely lapsed due to non-payment of fees |