CN108817419A - A kind of rotor of large turbo-type generator sleeping carriage lathe elastic shaft driving process - Google Patents
A kind of rotor of large turbo-type generator sleeping carriage lathe elastic shaft driving process Download PDFInfo
- Publication number
- CN108817419A CN108817419A CN201810781048.9A CN201810781048A CN108817419A CN 108817419 A CN108817419 A CN 108817419A CN 201810781048 A CN201810781048 A CN 201810781048A CN 108817419 A CN108817419 A CN 108817419A
- Authority
- CN
- China
- Prior art keywords
- rotor
- elastic shaft
- type generator
- sleeping carriage
- large turbo
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B5/08—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning axles, bars, rods, tubes, rolls, i.e. shaft-turning lathes, roll lathes; Centreless turning
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Manufacture Of Motors, Generators (AREA)
- Turning (AREA)
Abstract
The present invention discloses a kind of rotor of large turbo-type generator sleeping carriage lathe elastic shaft driving process, by being connected between rotor of large turbo-type generator and sleeping carriage lathe chuck with elastic shaft, the torque that processing needs can be transmitted, what the straight line that the chuck and two centre frames for overcoming sleeping carriage lathe determine generated crosses positioning phenomenon, and solves the problems, such as rotor of large turbo-type generator axial float when processing.
Description
Technical field：
The present invention relates to a kind of rotor of large turbo-type generator sleeping carriage lathe elastic shaft driving techniques.
Background technique：
Rotor of large turbo-type generator (1) is a kind of elongated flex rotor, outer circle and the processing of each end face be
Sleeping carriage lathe (5) is completed.When sleeping carriage lathe (5) processes rotor of large turbo-type generator (1), supported using two centre frames (6),
The mode of sleeping carriage lathe (5) chuck (7) clamping one end driving is processed.The principle of straight line, chuck (7) clamping are determined by two o'clock
Positioning phenomenon cannot be generated with two centre frames (6), and process rotor of large turbo-type generator (1) skill so that with sleeping carriage lathe (5)
The process of the raising of art, sleeping carriage lathe (5) driving is being constantly updated, and has parallel folder (3) driving, universal joint (4) to drive in the past
It is dynamic.
As shown in Fig. 2, being sleeping carriage lathe (5) chuck when parallel folder (3) the driving driving of previous sleeping carriage lathe (5) processing
(7) clamping jaw (8) stirs two projection arm transmitting torque of parallel folder (3), and chuck (7) and rotor of large turbo-type generator (1) are simultaneously
It is not connected to, therefore the straight line that will not be determined with two centre frames (6) generated positioning, but due to axial float, processing
When need using top (9) and jacking block (10).
It is that chuck (7) center and big is eliminated using the movable joint structure of universal joint (4) as shown in figure 3, universal joint (4) drives
The deviation at type rotor of steam turbo generator (1) center can transmit torque without generating positioning phenomenon in this way, but Vehicle Processing
When also have a small amount of axial floats, needed thus in sleeping carriage lathe (5) tail end using top (9).
Some numerical control sleeping carriage lathe (5) functions are more advanced at present, and tail end top (9) is in the case where stress is greater than 30 tons
Could normal use, otherwise can automatic locking sleeping carriage lathe (5), two centre frames (6) support large turbo-type generators are turned
This requirement is all not achieved in the Vehicle Processing technique of sub (1), top (9) stress substantially, therefore needs to develop a kind of without using top
(9) driving process when sleeping carriage lathe (5) is processed.
Summary of the invention：
The object of the present invention is to provide a kind of rotor of large turbo-type generator (1) sleeping carriage lathe (5) elastic shaft (2) drivings
Technique.Technical solution is：
1), rotor of large turbo-type generator (1) is supported, chuck in sleeping carriage machine tooling using two centre frames (6)
(7) by elastic shaft (2) driving rotation, Vehicle Processing process is completed；
2), elastic shaft (2) is 42CrMo or other forged steel materials, one end and rotor of large turbo-type generator (1) end
It is assembled and is fixed with bolt after looking for one heart, the concentricity after guaranteeing assembly is less than 0.03mm；
3), elastic shaft (2) other end and sleeping carriage lathe (5) chuck (7) are fixed by clamping jaw (8), after guarantee clamping with one heart
Degree is less than 0.03mm；
4) torque drive, is transmitted by elastic shaft (2) when Vehicle Processing, while large-scale using the elasticity elimination of elastic shaft (2)
Chuck (7) is crossed with two centre frames (6) during rotor of steam turbo generator (1) Vehicle Processing positions caused machining accuracy aspect
Influence.
The following are the explanations to technique of the invention：
Rotor of large turbo-type generator (1) in the fabrication process, other than hand assembled action, has significant portion of
Vehicle Processing action, the outer circle of each shaft part of Vehicle Processing and end face, and to guarantee that each shaft part axle center is consistent, end face squareness
Well；
It when sleeping carriage lathe (5) is processed, is supported using two centre frames (6), can guarantee that large-scale steamer is sent out well in this way
Rotor (1) weight is fallen on centre frame (6), while rotor of large turbo-type generator (1) Support Position is to be computed intensity
And consider selection convenient for mounting and clamping, so Support Position is not generally in end；
Two centre frames (6) of sleeping carriage lathe (5) support rotor of large turbo-type generator (1), and chuck (7) passes through clamping jaw
(8) it connect realization driving rotation with elastic shaft (2), while avoiding positioning phenomenon using the elasticity of elastic shaft (2)；
Due to the connection type of elastic shaft (2) and sleeping carriage lathe (5) be it is fixed, when Vehicle Processing, does not have axial float, tail
End is not needed using top (9).
Technical effect of the invention：
1) present invention has been successfully applied to certain rotor of large turbo-type generator (1) on 20 meters of sleeping carriage lathes (5) of numerical control
Vehicle Processing；
2) elastic shaft (2) and rotor of large turbo-type generator (1) and sleeping carriage lathe (5) are connected and fixed and facilitate stabilization；
It 3), will not be because of chuck when elastic shaft (2) driving makes sleeping carriage lathe (5) to process rotor of large turbo-type generator (1)
(7) application external force influences the entire shafting rectilinear system that two centre frames (6) determine, to will not influence to add because crossing positioning phenomenon
The bounce precision in working hour；
4) the fixed connection clamping of elastic shaft (2) and sleeping carriage lathe (5) makes to process large turbo-type generator (1) end face
When there is no axial float, top (9) can not used；
5) rotor of large turbo-type generator (1) various aspects precision of Vehicle Processing is outstanding.
Detailed description of the invention：
Fig. 1 rotor of large turbo-type generator drives schematic diagram with parallel folder
The parallel clamping structure schematic diagram of Fig. 2
Fig. 3 rotor of large turbo-type generator universal joint drive schematic diagram
Fig. 4 rotor of large turbo-type generator drives schematic diagram with elastic shaft
Fig. 5 elastic shaft structural schematic diagram
In attached drawing：
1, rotor of large turbo-type generator
2, elastic shaft
3, parallel folder
4, universal joint
5, sleeping carriage lathe
6, centre frame
7, chuck
8, clamping jaw
9, top
10, jacking block
Specific embodiment：
Rotor of large turbo-type generator sleeping carriage lathe elastic shaft driving technique.Its processing step is as follows：
1), for rotor of large turbo-type generator 1 in manufactory in production process, very big action is Vehicle Processing, by
In its structure be elongated flexible and requirement on machining accuracy is high, when sleeping carriage lathe 5 is processed, is supported using two centre frames 6, chuck
7, by the driving rotation of elastic shaft 2, complete Vehicle Processing process；
2), the material of elastic shaft 2 is the high-strength alloys forged steel such as 42CrMo, and this kind of Material Strength and toughness are all relatively good,
The structure of elastic shaft 2 is designed to both ends flange form elongated shaft, make its using when have preferable elasticity；
3), elastic shaft 2 is in 1 Vehicle Processing of rotor of large turbo-type generator in use, end flange bolt and large-scale steamer
Generator amature 1 is connected and fixed, while to guarantee the concentricity after 2 flange of elastic shaft and the assembly of rotor of large turbo-type generator 1
Less than 0.03mm；
4), 2 other end of elastic shaft and 5 chuck 7 of sleeping carriage lathe are fixed by clamping jaw 8, while to guarantee concentricity after clamping
Less than 0.03mm；
5), when 1 Vehicle Processing of rotor of large turbo-type generator, sleeping carriage lathe 5 is by the driving transmitting torque of elastic shaft 2, simultaneously
Influence caused by positioning is crossed using what chuck 7 during the elasticity elimination Vehicle Processing of elastic shaft 2 and two centre frames 6 generated；
6), elastic shaft 2 in use, since it is fixed clamping with sleeping carriage lathe 5, therefore will not generate axial alter
It is dynamic, top 9 and jacking block 10 can not used.
Specific process step：
It is illustrated by taking certain rotor of large turbo-type generator as an example below：
As shown in Figure 1, Figure 2, Fig. 3, rotor of large turbo-type generator 1 is when sleeping carriage lathe 5 is processed, using two centre frame 6
Support, by two o'clock decision straight line principle, 5 chuck 7 of sleeping carriage lathe cannot apply again external force formed with two centre frames it is fixed
Position phenomenon；
Such as Fig. 1, elastic shaft 2 drives the application on sleeping carriage lathe 5, so that when 1 Vehicle Processing of rotor of large turbo-type generator,
Chuck 7 is seted to generate positioning phenomenon from the straight line determined with two centre frames 6 using the elasticity of elastic shaft 2；
Such as Fig. 5, the flange at the structure both ends of elastic shaft 2 is suitable for being connected and fixed and pressing from both sides with rotor of large turbo-type generator 1
7 clamping of disk is fixed, the forged steel material such as intermediate elongated axle construction and 42CrMo, makes to need which create driving elastic and strong
Degree；
Such as Fig. 1, elastic shaft 2 is driven, and is avoided Fig. 2, Fig. 3, parallel 3 driving of folder shown in Fig. 4 and universal joint 4 and is driven institute
What is be not avoided that has the problem of axial float, it is not necessary to use top 9 and jacking block 10, can directly process large turbo-type generator
Each end face of rotor；
Such as Fig. 1, due to that can not use top 9, top 9 stress for overcoming 20 meters of sleeping carriage lathes 5 of numerical control is not achieved 30
The limitation of ton, the problem of avoiding axial float.
Claims (1)
1. a kind of rotor of large turbo-type generator sleeping carriage lathe elastic shaft drives process, it is characterized in that：Include the following steps：
1) rotor of large turbo-type generator (1) is supported in sleeping carriage machine tooling using two centre frames (6), and chuck (7) passes through
Elastic shaft (2) driving rotation, completes Vehicle Processing process；
2) elastic shaft (2) is 42CrMo or other forged steel materials, and one end is looked for concentric with rotor of large turbo-type generator (1) end
It is assembled and is fixed with bolt afterwards, the concentricity after guaranteeing assembly is less than 0.03mm；
3) elastic shaft (2) other end and sleeping carriage lathe (5) chuck (7) are fixed by clamping jaw (8), and concentricity is less than after guaranteeing clamping
0.03mm；
4) torque drive is transmitted by elastic shaft (2) when Vehicle Processing, while eliminates large-scale steamer using the elasticity of elastic shaft (2) and sends out
Chuck (7) crosses the influence in terms of positioning caused machining accuracy with two centre frames (6) during rotor (1) Vehicle Processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810781048.9A CN108817419A (en) | 2018-07-17 | 2018-07-17 | A kind of rotor of large turbo-type generator sleeping carriage lathe elastic shaft driving process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810781048.9A CN108817419A (en) | 2018-07-17 | 2018-07-17 | A kind of rotor of large turbo-type generator sleeping carriage lathe elastic shaft driving process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108817419A true CN108817419A (en) | 2018-11-16 |
Family
ID=64140687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810781048.9A Pending CN108817419A (en) | 2018-07-17 | 2018-07-17 | A kind of rotor of large turbo-type generator sleeping carriage lathe elastic shaft driving process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108817419A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114082994A (en) * | 2021-11-23 | 2022-02-25 | 上海电气电站设备有限公司 | 660 MW-grade steam turbine generator water-cooling rotor turning method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2302074Y (en) * | 1997-03-18 | 1998-12-30 | 宣红庆 | Soft jaw dismountable chuck with three holdfast |
| US20020067097A1 (en) * | 2000-12-06 | 2002-06-06 | Keiji Inoue | Dynamo-electric machine having commutator and manufacturing method thereof |
| CN201590727U (en) * | 2009-12-18 | 2010-09-22 | 上海重型机器厂有限公司 | Machining equipment for low-pressure rotor of nuclear turbo generator |
| CN102097897A (en) * | 2009-12-15 | 2011-06-15 | 上海重型机器厂有限公司 | Mechanical manufacturing method for rotor shaft of heavy nuclear power generator |
| CN201889464U (en) * | 2010-11-23 | 2011-07-06 | 广西玉柴机器股份有限公司 | Boring bar device |
-
2018
- 2018-07-17 CN CN201810781048.9A patent/CN108817419A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2302074Y (en) * | 1997-03-18 | 1998-12-30 | 宣红庆 | Soft jaw dismountable chuck with three holdfast |
| US20020067097A1 (en) * | 2000-12-06 | 2002-06-06 | Keiji Inoue | Dynamo-electric machine having commutator and manufacturing method thereof |
| CN102097897A (en) * | 2009-12-15 | 2011-06-15 | 上海重型机器厂有限公司 | Mechanical manufacturing method for rotor shaft of heavy nuclear power generator |
| CN201590727U (en) * | 2009-12-18 | 2010-09-22 | 上海重型机器厂有限公司 | Machining equipment for low-pressure rotor of nuclear turbo generator |
| CN201889464U (en) * | 2010-11-23 | 2011-07-06 | 广西玉柴机器股份有限公司 | Boring bar device |
Non-Patent Citations (3)
| Title |
|---|
| 康娜莉亚•弗里彻 等: "《塑料装备与加工技术》", 31 December 2014, 湖南科学技术出版社 * |
| 蒋玉萍 等: "双水内冷发电机超高速转轴加工工艺", 《金属加工（冷加工）》 * |
| 马有昂 等: "《数控车工技能实训（中级）》", 30 June 2015, 中国科学技术大学 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114082994A (en) * | 2021-11-23 | 2022-02-25 | 上海电气电站设备有限公司 | 660 MW-grade steam turbine generator water-cooling rotor turning method |
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Application publication date: 20181116 |