CN102350534B - Transition bushing for processing final race of turbine rotor with 130T boring machine - Google Patents
Transition bushing for processing final race of turbine rotor with 130T boring machine Download PDFInfo
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- CN102350534B CN102350534B CN 201110281964 CN201110281964A CN102350534B CN 102350534 B CN102350534 B CN 102350534B CN 201110281964 CN201110281964 CN 201110281964 CN 201110281964 A CN201110281964 A CN 201110281964A CN 102350534 B CN102350534 B CN 102350534B
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- boring machine
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- turbine rotor
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Abstract
The invention discloses a transition bushing for processing a final race of a turbine rotor with a 130T boring machine, relating to a component for processing a race of a turbine rotor with a boring machine. The invention aims to solve the problems of movement and insufficient rigidity of a boring machine spindle caused when the 130T boring machine processes the final race of the turbine rotor. The shape of the transition bushing consists of a round table body and a cylinder; the transition bushing is axially provided with a through center inner hole; round protuberances are arranged around the end surface of the cylinder; a positioning key through groove is processed on the end surface of the round protuberances; four through holes are axially processed on the end surface of the cylinder; the center inner hole of the transition bushing is located on one side of the small-diameter end surface of the round table body and is a conical center inner hole; two 180-degree symmetrical pin holes and two 180-degree symmetrical screw holes are processed on the small-diameter end surface of the round table body; and each pin hole is located between the two 180-degree symmetrical screw holes. Through the invention, the movement of the boring machine spindle can be prevented, and the rigidity of the boring machine spindle is improved. The transition bushing disclosed by the invention is used for processing the final race of the turbine rotor with the 130T boring machine.
Description
Technical field
The present invention relates to the parts that a kind of Boring machine processing turbo rotor groove is used.
Background technology
The ultra supercritical low pressure rotor is at 130T boring machine processing final stage race, finds wheel groove milling cutter damages of often forging a knife in the process, and every milling cutter is only processed 3-4 final stage race and just scrapped, and easily makes the race knife owing to forging a knife, and this is serious quality problems.The final stage race is forward and reverse 128 races, and this milling cutter is the import cutter, and quantity is few, price is high (nearly 30,000 yuan of unit price).As damage too much and will cause larger economic loss, affect simultaneously crudy and the progress of rotor.Analyze the frequent impaired reason of wheel groove milling cutter, following 2 points arranged:
The one, in the process machine tool chief axis vibration larger, main cause is this construction rotor final stage wheel groove width and dark, 130 boring spindle rigidity are not enough in the processing, namely have " high load with small power phenomenon "; The 2nd, cutting force sudden change when the about 0.3mm of machine tool chief axis axial float, this play can make processing rotor final stage race.
Summary of the invention
The present invention is when solving 130T Boring machine processing turbine rotor final stage race, and the problem of machine tool chief axis play and rigidity deficiency provides a kind of 130T Boring machine processing turbine rotor final stage race spacer shell.
The present invention addresses the above problem the technical scheme of taking to be: 130T Boring machine processing turbine rotor final stage race spacer shell of the present invention, the profile of described spacer shell is comprised of Rotary-table and cylinder, described Rotary-table and the coaxial setting of cylinder, and the major diameter end face of this Rotary-table is made one with this cylindrical side end face, described spacer shell is provided with the central inner hole of perforation vertically, the periphery place of described cylindrical opposite side end face is provided with the annular projection, the end of described annular projection is processed with the positioning key groove, described positioning key groove is cylindrically radially offered along described, be processed with vertically four through holes on the described cylindrical end face, minor diameter end face one side that the central inner hole of described spacer shell is positioned at Rotary-table is conical central inner hole, the aperture of described conical central inner hole is reduced to the cylinder direction gradually by Rotary-table, be processed with two 180 symmetrical spiral pin hole and two 180 symmetrical screws of degree of degree on the minor diameter end face of described Rotary-table, and each spiral pin hole is positioned at the centre of the symmetrical screw of described two 180 degree.
The invention has the beneficial effects as follows: use spacer shell of the present invention during 130T Boring machine processing turbine rotor final stage race, can prevent the boring spindle play, improve the rigidity of boring spindle, can satisfy processing request fully, not only efficient is enhanced about more than once, and saves at least 50 ten thousand yuan of cutter expenses.
Description of drawings
Fig. 1 is the front view of spacer shell of the present invention, and Fig. 2 is the A-A face cutaway view of Fig. 1, and Fig. 3 is the right view of Fig. 1, and Fig. 4 is the axonometric drawing of spacer shell of the present invention.
The specific embodiment
The specific embodiment one: in conjunction with Fig. 1-Fig. 4 explanation, the 130T Boring machine processing turbine rotor final stage race spacer shell of present embodiment, the profile of described spacer shell is comprised of Rotary-table 10 and cylinder 11, described Rotary-table 10 and cylinder 11 coaxial settings, and one is made in the major diameter end face of this Rotary-table 10 and a side end face of this cylinder 11, described spacer shell is provided with the central inner hole 12 of perforation vertically, the periphery place of the opposite side end face of described cylinder 11 is provided with annular projection 3 (this annular projection 3 cooperates with the lateral wall location of boring spindle as seam), the end of described annular projection 3 is processed with positioning key groove 2, described positioning key groove 2 is along radially the offering of described cylinder 11 (described positioning key groove 2 cooperates with positioning key on the boring spindle), (four through holes 1 are threaded with corresponding four screws on the boring machine square chest by four bolts to be processed with vertically four through holes 1 on the end face of described cylinder 11, thereby spacer shell of the present invention is fastenedly connected on the boring machine square chest), minor diameter end face one side that the central inner hole 12 of described spacer shell is positioned at Rotary-table 10 is conical central inner hole 6 (conical central inner hole 6 is used for cooperating with the taper shank location of wheel groove milling cutter cover), the aperture of described conical central inner hole 6 is reduced to cylinder 11 directions gradually by Rotary-table 10, be processed with two 180 symmetrical spiral pin hole 4 and two 180 symmetrical screws 5 of degree of degree on the minor diameter end face of described Rotary-table 10, and each spiral pin hole 4 is positioned at the centre of the symmetrical screw 5 of described two 180 degree, and (two corresponding pin-and-holes are located and are fastenedly connected by spiral pin on two spiral pin holes 4 and the wheel groove milling cutter cover ring flange, thereby spacer shell and wheel groove milling cutter cover ring flange are fastened together, two spiral pin holes 4 are overlapped through hole corresponding on the ring flange with wheel groove milling cutter and are connected by screw fastening, so just can the wheel groove milling cutter cover be fastened together with the boring machine square chest by this spacer shell, guarantee the rigidity of processing).
The specific embodiment two: in conjunction with Fig. 2-Fig. 4 explanation, major diameter end face place near Rotary-table 10 on the lateral wall of the described Rotary-table 10 of present embodiment is processed with four breach 7, described four breach 7 and the one by one corresponding setting of four through holes 1 (guaranteeing that four bolts that spacer shell is fixedly connected with the boring machine square chest have headspace).Other is identical with the specific embodiment one.
During processing vapor turbine wheel final stage race, spacer shell of the present invention is sleeved on the main shaft of 130T boring machine, and fix by positioning key, simultaneously spacer shell is fastenedly connected on boring machine square chest and wheel groove milling cutter cover ring flange, during processing vapor turbine wheel final stage race, both can prevent the boring spindle play, improve again the rigidity of boring spindle.
Claims (2)
1. 130T Boring machine processing turbine rotor final stage race spacer shell, it is characterized in that: the profile of described spacer shell is comprised of Rotary-table (10) and cylinder (11), described Rotary-table (10) and the coaxial setting of cylinder (11), and one is made in a side end face of the major diameter end face of this Rotary-table (10) and this cylinder (11), described spacer shell is provided with the central inner hole (12) of perforation vertically, the periphery place of the opposite side end face of described cylinder (11) is provided with annular projection (3), the end of described annular projection (3) is processed with positioning key groove (2), described positioning key groove (2) radially offering along described cylinder (11), be processed with vertically four through holes (1) on the end face of described cylinder (11), minor diameter end face one side that the central inner hole of described spacer shell (12) is positioned at Rotary-table (10) is conical central inner hole (6), the aperture of described conical central inner hole (6) is reduced to cylinder (11) direction gradually by Rotary-table (10), be processed with two 180 symmetrical spiral pin hole (4) and two 180 symmetrical screws (5) of degree of degree on the minor diameter end face of described Rotary-table (10), and each spiral pin hole (4) is positioned at the centre of the symmetrical screw (5) of described two 180 degree.
2. 130T Boring machine processing turbine rotor final stage race spacer shell according to claim 1, it is characterized in that: the major diameter end face place near Rotary-table (10) on the lateral wall of described Rotary-table (10) is processed with four breach (7), described four breach (7) and one by one corresponding setting of four through holes (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110281964 CN102350534B (en) | 2011-09-21 | 2011-09-21 | Transition bushing for processing final race of turbine rotor with 130T boring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110281964 CN102350534B (en) | 2011-09-21 | 2011-09-21 | Transition bushing for processing final race of turbine rotor with 130T boring machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102350534A CN102350534A (en) | 2012-02-15 |
| CN102350534B true CN102350534B (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110281964 Active CN102350534B (en) | 2011-09-21 | 2011-09-21 | Transition bushing for processing final race of turbine rotor with 130T boring machine |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107812961B (en) * | 2017-11-16 | 2019-09-17 | 西安航天发动机厂 | The device of five-axle number control machine tool main shaft increase renewable bushing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0090929A2 (en) * | 1982-03-18 | 1983-10-12 | TBT Tiefbohrtechnik GmbH und Co. KG. | Deep hole drilling tool |
| DE202004001293U1 (en) * | 2004-01-29 | 2004-05-06 | Bta-Tiefbohrsysteme Gmbh | Deep boring system has two diametrically opposite cutting blades on a rotating mounting inside an outer grip sleeve with radial grip bars to secure in the bore |
| CN201198113Y (en) * | 2008-05-13 | 2009-02-25 | 中国第一重型机械集团公司 | Borer honing apparatus |
| CN101602115A (en) * | 2009-01-21 | 2009-12-16 | 无锡帝凡精工机械有限公司 | Sleeve barrel structure of horizontal type numerical control boring-milling machine |
| CN202219345U (en) * | 2011-09-21 | 2012-05-16 | 哈尔滨汽轮机厂有限责任公司 | Transition sleeve used for machining final-stage slots of steam turbine rotor on 130T boring mill |
-
2011
- 2011-09-21 CN CN 201110281964 patent/CN102350534B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0090929A2 (en) * | 1982-03-18 | 1983-10-12 | TBT Tiefbohrtechnik GmbH und Co. KG. | Deep hole drilling tool |
| DE202004001293U1 (en) * | 2004-01-29 | 2004-05-06 | Bta-Tiefbohrsysteme Gmbh | Deep boring system has two diametrically opposite cutting blades on a rotating mounting inside an outer grip sleeve with radial grip bars to secure in the bore |
| CN201198113Y (en) * | 2008-05-13 | 2009-02-25 | 中国第一重型机械集团公司 | Borer honing apparatus |
| CN101602115A (en) * | 2009-01-21 | 2009-12-16 | 无锡帝凡精工机械有限公司 | Sleeve barrel structure of horizontal type numerical control boring-milling machine |
| CN202219345U (en) * | 2011-09-21 | 2012-05-16 | 哈尔滨汽轮机厂有限责任公司 | Transition sleeve used for machining final-stage slots of steam turbine rotor on 130T boring mill |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102350534A (en) | 2012-02-15 |
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