CN101733429A - Process for concentrically drilling and reaming top cover of axial-flow water turbine and guide vane bearing hole of runner chamber - Google Patents
Process for concentrically drilling and reaming top cover of axial-flow water turbine and guide vane bearing hole of runner chamber Download PDFInfo
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- CN101733429A CN101733429A CN200910186654A CN200910186654A CN101733429A CN 101733429 A CN101733429 A CN 101733429A CN 200910186654 A CN200910186654 A CN 200910186654A CN 200910186654 A CN200910186654 A CN 200910186654A CN 101733429 A CN101733429 A CN 101733429A
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- top cover
- guide vane
- runner envelope
- stator axis
- runner chamber
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Abstract
The invention relates to a process for concentrically drilling and reaming a top cover of an axial-flow water turbine and a guide vane bearing hole of a runner chamber. The process comprises the following steps: firstly, processing a positioning pin having the same geometric size as a guide vane bearing; on a vertical machining center and on the top cover and the runner chamber respectively, processing two guide vane bearing holes which are symmetrical to a central axis of the top cover or a central axis of the runner chamber respectively; placing the runner chamber on a radial drill worktable, placing the top cover on the runner chamber after aligning with a plane, aligning the runner chamber with the guide vane bearing holes on the two sides of the top cover and inserting the positioning pin for positioning after aligning with the plane; and on the radial drill worktable, compressing the positioned top cover and the positioned runner chamber, drilling and reaming the guide vane bearing holes, which share the same central line, of the top cover and the runner chamber on the same station at the same time and sequentially processing all guide vane bearing holes. Compared with the traditional mold positioning and processing method, the process does not need to manufacture the positioning mold, reduces the production procedures, shortens the production period, improves the processing quality and lowers the manufacturing cost and labor intensity.
Description
Technical field
The present invention relates to a kind of processing technology of axis hole, particularly a kind of axial-flow water-turbine top cover and concentric technology that drills and reams of runner envelope stator axis hole of on radial drill, carrying out.
Background technology
The axial flow hydraulic turbine guide vane teunnion is installed in the concentric stator axis hole of kaplan turbine runner chamber and top cover, and the stator axis hole that lays respectively at total same center line on runner envelope and the top cover should have the requirement of concentricity; Because the stroke of vertical machining centre is not enough, can't process stator axis holes all on top cover, the runner envelope respectively.Before this, have to earlier the runner envelope 1 shown in the accompanying drawing 2 be put the radial drill workbench, the centering plane refills positioning clamping fixture 5; After the adjustment circumferential clearance evenly compresses, top cover 2 is installed on the positioning clamping fixture 5, concentric bore and fraising after the adjustment circumferential clearance evenly compresses, are carried out to the stator axis hole 4 that has same center line in the centering plane.This processing method, manufacturing cost is big, and the production cycle is long, and labor strength is big, and quality is unreliable.
Summary of the invention
The purpose of this invention is to provide a kind of on radial drill, to axial-flow water-turbine top cover and the concentric technology that drills and reams of runner envelope stator axis hole, carry out concentric bore and fraising applicable to the stator axis hole of axial-flow water-turbine top cover and runner envelope or top cover and base ring, Francis turbine protecgulum and bonnet; Diameter of part is not more than 1500mm, and guide vane teunnion pore size distribution circular diameter is not more than 750mm.
For solving the problems of the technologies described above, technical scheme of the present invention is: the concentric technology that drills and reams of a kind of axial-flow water-turbine top cover and runner envelope stator axis hole comprises:
[1] according to the designing requirement of guide vane teunnion, processes the alignment pin identical with the guide vane teunnion physical dimension;
[2] on the vertical machining centre respectively on described top cover and runner envelope, according to the designing requirement of stator axis hole, process two stator axis holes that are symmetrical in top cover central axis or runner envelope central axis; Be positioned at the total same center line of stator axis hole of top cover and runner envelope one side, and with the alignment pin interference fits; Be positioned at the total same center line of stator axis hole of top cover and runner envelope opposite side, and with the alignment pin interference fits;
[3] runner envelope is put on the radial drill workbench, centering is put into top cover on the runner envelope behind the plane, and with the stator axis hole contraposition of top cover and runner envelope both sides, plugs alignment pin behind the centering plane respectively, finishes the location;
[4] on the radial drill workbench, compress the top cover and the runner envelope of having located; According to designing requirement, on same station, disposable boring and the fraising of finishing the total same center line stator axis hole of top cover and runner envelope;
[5] process whole stator axis holes successively according to step [4].
The invention has the beneficial effects as follows: compare with mold positioning and processing method before this, need not to make positioning clamping fixture, can reduce production process, shorten the production cycle, improve crudy, reduce manufacturing cost and labour intensity.
Description of drawings
Fig. 1 adopts alignment pin to locate the schematic diagram in the guide vane teunnion hole that drills and reams.
Fig. 2 adopts mold to locate the schematic diagram in the guide vane teunnion hole that drills and reams at present.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
Embodiment is as shown in Figure 1: the concentric technology that drills and reams of a kind of axial-flow water-turbine top cover and runner envelope stator axis hole, and step is as follows:
[1] according to the designing requirement of guide vane teunnion, processes the alignment pin 3 identical with the guide vane teunnion physical dimension;
[2] on the vertical machining centre respectively on described top cover 2 and runner envelope 1, according to the designing requirement of stator axis hole 4, process two stator axis holes 4 that are symmetrical in top cover central axis or runner envelope central axis; Be positioned at the total same center lines of stator axis hole 4 of top cover 2 and runner envelope 1 one sides, and with alignment pin 3 interference fits; Be positioned at the total same center lines of stator axis hole 4 of top cover 2 and runner envelope 1 opposite side, and with alignment pin 3 interference fits;
[3] runner envelope 1 is put on the radial drill workbench, behind the centering plane top cover 2 is put on the runner envelope 1, and, plug alignment pin 3 behind the centering plane respectively, finish the location stator axis hole 4 contrapositions of top cover 2 and runner envelope 1 both sides;
[4] on the radial drill workbench, compress the runner envelope 1 and the top cover 2 of having located; According to designing requirement, on same station, disposable boring and the fraising of finishing the total same center line stator axis hole 4 of top cover 2 and runner envelope 1;
[5] process whole stator axis holes 4 successively according to step [4].
Claims (1)
1. the concentric technology that drills and reams of an axial-flow water-turbine top cover and runner envelope stator axis hole is included on top cover (2) and the runner envelope (1), the stator axis hole (4) of the total same center line of processing, and step is as follows:
[1] according to the designing requirement of guide vane teunnion, processes the alignment pin (3) identical with the guide vane teunnion physical dimension;
[2] on the vertical machining centre respectively on described top cover (2) and runner envelope (1), according to the designing requirement of stator axis hole (4), process two stator axis holes (4) that are symmetrical in top cover central axis or runner envelope central axis; Be positioned at the total same center line of stator axis hole (4) of top cover (2) and runner envelope (1) one side, and with alignment pin (3) interference fits; Be positioned at the total same center line of stator axis hole (4) of top cover (2) and runner envelope (1) opposite side, and with alignment pin (3) interference fits;
[3] runner envelope (1) is put on the radial drill workbench, behind the centering plane top cover (2) is put on the runner envelope (1), and, plug alignment pin (3) behind the centering plane respectively, finish the location stator axis hole (4) contraposition of top cover (2) and runner envelope (1) both sides;
[4] on the radial drill workbench, compress the top cover (2) and the runner envelope (1) of having located; According to designing requirement, on same station, disposable boring and the fraising of finishing the total same center line stator axis hole (4) of top cover (2) and runner envelope (1);
[5] process whole stator axis holes (4) successively according to step [4].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101866547A CN101733429B (en) | 2009-12-09 | 2009-12-09 | Process for concentrically drilling and reaming top cover of axial-flow water turbine and guide vane bearing hole of runner chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101866547A CN101733429B (en) | 2009-12-09 | 2009-12-09 | Process for concentrically drilling and reaming top cover of axial-flow water turbine and guide vane bearing hole of runner chamber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101733429A true CN101733429A (en) | 2010-06-16 |
| CN101733429B CN101733429B (en) | 2011-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101866547A Expired - Fee Related CN101733429B (en) | 2009-12-09 | 2009-12-09 | Process for concentrically drilling and reaming top cover of axial-flow water turbine and guide vane bearing hole of runner chamber |
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| CN (1) | CN101733429B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102500787A (en) * | 2011-12-20 | 2012-06-20 | 中国飞机强度研究所 | Machining method of symmetrical multi-hole working piece |
| CN102554302A (en) * | 2010-10-07 | 2012-07-11 | 通用电气公司 | Method and apparatus for machining a shroud block |
| CN103658720A (en) * | 2012-09-24 | 2014-03-26 | 南车青岛四方机车车辆股份有限公司 | Machining method for air spring air inlet base connecting hole |
| CN103737050A (en) * | 2013-12-20 | 2014-04-23 | 柳州正菱集团有限公司 | Process for drilling middle hole in bearing support of automobile intermediate shaft |
| CN112108667A (en) * | 2020-09-21 | 2020-12-22 | 湖北三江航天红阳机电有限公司 | Spherical combined part butt-joint inclined hole machining method and clamping and positioning tool |
-
2009
- 2009-12-09 CN CN2009101866547A patent/CN101733429B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554302A (en) * | 2010-10-07 | 2012-07-11 | 通用电气公司 | Method and apparatus for machining a shroud block |
| CN102554302B (en) * | 2010-10-07 | 2015-11-25 | 通用电气公司 | For the method and apparatus of machining shroud block |
| CN102500787A (en) * | 2011-12-20 | 2012-06-20 | 中国飞机强度研究所 | Machining method of symmetrical multi-hole working piece |
| CN102500787B (en) * | 2011-12-20 | 2013-07-10 | 中国飞机强度研究所 | Machining method of symmetrical multi-hole working piece |
| CN103658720A (en) * | 2012-09-24 | 2014-03-26 | 南车青岛四方机车车辆股份有限公司 | Machining method for air spring air inlet base connecting hole |
| CN103658720B (en) * | 2012-09-24 | 2015-09-02 | 南车青岛四方机车车辆股份有限公司 | Air spring air inlet seat connecting hole processing method |
| CN103737050A (en) * | 2013-12-20 | 2014-04-23 | 柳州正菱集团有限公司 | Process for drilling middle hole in bearing support of automobile intermediate shaft |
| CN112108667A (en) * | 2020-09-21 | 2020-12-22 | 湖北三江航天红阳机电有限公司 | Spherical combined part butt-joint inclined hole machining method and clamping and positioning tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101733429B (en) | 2011-07-27 |
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| SE01 | Entry into force of request for substantive examination | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 Termination date: 20131209 |