CN103358224A - Grinding machine of thrust bearing runner of hydro-generator - Google Patents
Grinding machine of thrust bearing runner of hydro-generator Download PDFInfo
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- CN103358224A CN103358224A CN2012100920457A CN201210092045A CN103358224A CN 103358224 A CN103358224 A CN 103358224A CN 2012100920457 A CN2012100920457 A CN 2012100920457A CN 201210092045 A CN201210092045 A CN 201210092045A CN 103358224 A CN103358224 A CN 103358224A
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- main shaft
- thrust bearing
- generator
- grinding
- hydro
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Abstract
The invention discloses a grinding machine of the thrust bearing runner of a hydro-generator. Two grinding heads are accommodated inside two stirring boxes respectively and positioned through stop bolts, the two stirring boxes are arranged on a left tumbler arm and a right tumbler arm respectively, the left tumbler arm and the right tumbler arm are mounted on a main shaft, the main shaft and a motor reducer are both mounted on a box body, and the rotation of the grinding heads is driven through the transmission of gears and the main shaft by the motor reducer. The grinding machine of thrust bearing runner of the hydro-generator is simple and compact in structure, easy to transport and mount, capable of reducing the manufacturing costs and applicable to grinding or polishing the runner of the hydro-generator on the maintenance site of a hydropower station and creatively achieves the on-site repair of the thrust bearing runner, so that the repair efficiency is greatly improved, the generator set repair time is largely shortened, and further very considerable economic benefits can be obtained.
Description
Technical field
The present invention relates to a kind of hydraulic generator thrust bearing runner plate grinder.
Background technology
Thrust bearing is the vitals of vertical hydrogenerator, and it bears weight and the axial hydraulic thrust of unit rotating part, and its working condition quality directly affects the reliability of unit operation, also affects the flexibility of unit operation.Runner plate is the attaching parts between thrust bearing rotating part and standing part, and its effect is that the unit axial load is delivered on the thrust bearing shoe valve.Because runner plate rotates with quite high linear velocity on the thrust tiling, if minute surface has scar or roughness to descend, just might occur grinding watt, the phenomenon such as tile kilning, jeopardize the safety and stability of unit, thus with regard to needs regularly to minute surface overhaul, milled processed.Along with many large-scale unit turn(a)rounds close on, the use of runner plate grinder was comparatively frequent, therefore, efficient and the grinding effect of grinder was had higher requirement in recent years.But along with present unit is increasing, the thrust collar diameter reaches more than 5 meters, and weight reaches tons up to a hundred, as seen so large part is transported back producer by the power station and repairs, transportation and repairing efficiency all are larger problems, and its each side expense and loss are all very huge.The actual conditions of processing for present domestic large-sized water turbine generator thrust bearing surfaces of mirror plate finishing are in the urgent need to the hydraulic generator thrust bearing runner collar grinding equipment that a kind ofly can grind in the power station maintenance, the generalization degree is high, Grinding Quality is high, production efficiency is high.
Summary of the invention
The purpose of this invention is to provide a kind ofly can grind in the power station, the generalization degree is high, Grinding Quality is high, compact conformation, hydraulic generator thrust bearing runner collar grinding equipment that production efficiency is high.The objective of the invention is to be achieved through the following technical solutions: a kind of hydraulic generator thrust bearing runner plate grinder, the sub-cloth of Buddhist nun (1) wrapping is on grinding head (2), grinding head (2) is installed on the pressing plate (3), pressing plate (3) is limited to by gear bolt (4) and dials in the box (5), dialling box (5) for two is installed in respectively on left-hand rotation arm (6) and the right-hand rotation arm (8), first key (7) is installed in the keyway of main shaft (12) upper end, left-hand rotation arm (6) and right-hand rotation arm (8) are respectively installed to main shaft (12) two ends, main shaft (12) is installed in the casing (9), the second key (13) is installed in the keyway of main shaft (12) lower end, gear wheel (11) is installed to main shaft (12) lower end, motor reducer (16) is installed on the casing (9), motor reducer (16) output shaft installs and fixes pinion (15) by triple bond (14), pinion (15) and gear wheel (11) engagement, casing (9) is installed on the base (11).
Operation principle of the present invention: motor reducer (16) rotates through triple bond (14) and drives pinion (15) revolution, through pinion (15), gear wheel (11) engaged transmission drives main shaft (12) revolution, main shaft (12) revolution is rotated around axis through first key (7) drive left-hand rotation arm (6) and right-hand rotation arm (8), thereby driving the grinding head (2) that is contained in group box (5) moves in a circle along axis in surfaces of mirror plate, by its Action of Gravity Field on surfaces of mirror plate, and surfaces of mirror plate ground, finish the attrition process to the thrust bearing surfaces of mirror plate.
Technique effect of the present invention is: the present invention adopts the sub-cloth of qualified thrust bearing shoe valve parcel Buddhist nun as grinding head, smear abrasive pastes through the surface, stir grinding head by group box and make it produce fricting movement to the thrust collar surfaces of mirror plate, reach the reparation to the runner plate injured surface, method original creation, simple, practical.The present invention can take full advantage of the limited condition in power station, makes the structure of equipment as far as possible simple compact, is convenient to transportation, installs, and reduces manufacturing cost.The machine running part adopts vertical type speed reducer (change gear), vertical drive shaft, drives grinding head by vertical drive shaft and rotates, and guarantees the stability of axle, be suitable in maintenance building site, power station to hydraulic generator mirror plate grind, polishing.The past power station damage occurs for the thrust collar surfaces of mirror plate in to the Hydropower Unit maintenance, owing to there is not special-purpose equipment, can only transports manufactory back and repair.The invention of this equipment, with creationary realization thrust collar runner plate field repair, remediation efficiency increases substantially, and greatly shortens the unit maintenance duration, and the economic benefit that gains thus is considerable.
Practical application effect of the present invention proves:
1, this equipment grinding result reaches specification requirement fully: the minute surface roughness reaches Ra1.6 μ m, and flatness reaches 0.02mm/m, and the depth of parallelism of upper plane and lower plane reaches 0.06mm/m, and the stable operation of unit is guaranteed.
2, adopt the equipment processing ability of making according to the present invention to be well positioned to meet drawing requirement, reach the assembly precision of former mach quality requirement and assurance thrust bearing.This invention has stood the test of long-term actual production, and is stable, reliable, machining accuracy is high, long service life.
3, successfully solve large-sized water turbine generator thrust bearing runner plate and overhauled the predicament of grinding under the limited condition in building site in the power station, opened up a new way that runner plate grinds.Can remove from this way and transport runner plate back difficulty that producer repairs, repair time and the freight of greatly saving runner plate, it will be very considerable being converted to economic benefit.
4, prove in the building-site practical application: it be one can be at the hydraulic generator thrust bearing runner collar grinding equipment that power station maintenance is ground, the generalization degree is high, Grinding Quality is high, production efficiency is high.Description of drawings
Fig. 1 is hydraulic generator thrust bearing runner plate grinding machine structure diagrammatic cross-sectional view
The specific embodiment
A kind of hydraulic generator thrust bearing runner plate grinder as shown in Figure 1, sub-cloth 1 wrapping of Buddhist nun is on grinding head 2, grinding head 2 is installed on the pressing plate 3, pressing plate 3 is limited to by gear bolt 4 and dials in the box 5, dialling box 5 for two is installed in respectively on left-hand rotation arm 6 and the right-hand rotation arm 8, first key 7 is installed in the main shaft 12 upper end keyways, left-hand rotation arm 6 and right-hand rotation arm 8 are respectively installed to main shaft 12 two ends, main shaft 12 is installed in the casing 9, the second key 13 is installed in the main shaft 12 lower end keyways, gear wheel 11 is installed to main shaft 12 lower ends, motor reducer 16 is installed on the casing 9, motor reducer 16 output shafts install and fix pinion 15 by triple bond 14, pinion 15 and gear wheel 11 engagements, and casing 9 is installed on the base 11.
Fitting key 14, pinion 15 on motor reducer 16 output shafts, pinion 15 and gear wheel 11 engagements, casing 9 is installed on the base 11, and motor reducer 16 rotates through key 14, pinion 15, gear wheel 11, key 13, main shaft 12, left-hand rotation arm 6 and drives grinding heads 2 rotations with right-hand rotation arm 8, group box 5.Grinding technics comprises: (1) places on the platform hydraulic generator thrust bearing runner plate and grinder fixing after the levelling; (2) abrasive pastes are sprinkling upon surfaces of mirror plate uniformly, start grinder make bistrique stable along the runner plate circumferential movement, grind in surfaces of mirror plate and to surfaces of mirror plate by its Action of Gravity Field, make runner plate reach the minute surface requirement; (3) grind, will note cleaning in the polishing process, the dust that must not drop on the runner plate, moisture or contain the liquid of acid, alkali, salt is in order to avoid the damage runner plate.
Claims (1)
1. hydraulic generator thrust bearing runner plate grinder, it is characterized in that: Ni Zibu (1) wraps up on grinding head (2), grinding head (2) is installed on the pressing plate (3), pressing plate (3) is limited to by gear bolt (4) and dials in the box (5), dialling box (5) for two is installed in respectively on left-hand rotation arm (6) and the right-hand rotation arm (8), first key (7) is installed in the keyway of main shaft (12) upper end, left-hand rotation arm (6) and right-hand rotation arm (8) are respectively installed to main shaft (12) two ends, main shaft (12) is installed in the casing (9), the second key (13) is installed in the keyway of main shaft (12) lower end, gear wheel (11) is installed to main shaft (12) lower end, motor reducer (16) is installed on the casing (9), motor reducer (16) output shaft installs and fixes pinion (15) by triple bond (14), pinion (15) and gear wheel (11) engagement, casing (9) is installed on the base (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100920457A CN103358224A (en) | 2012-03-31 | 2012-03-31 | Grinding machine of thrust bearing runner of hydro-generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100920457A CN103358224A (en) | 2012-03-31 | 2012-03-31 | Grinding machine of thrust bearing runner of hydro-generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103358224A true CN103358224A (en) | 2013-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100920457A Pending CN103358224A (en) | 2012-03-31 | 2012-03-31 | Grinding machine of thrust bearing runner of hydro-generator |
Country Status (1)
| Country | Link |
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| CN (1) | CN103358224A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106272032A (en) * | 2016-10-31 | 2017-01-04 | 国网福建省电力有限公司 | Runner plate grinder |
| CN109093498A (en) * | 2018-08-30 | 2018-12-28 | 国家电网公司 | A kind of intelligent full-automatic hydraulic generator thrust bearing runner plate grinder |
| US10292674B2 (en) | 2015-10-15 | 2019-05-21 | Siemens Healthcare Gmbh | Method for computing a CT scanner protocol |
| CN111360639A (en) * | 2020-02-25 | 2020-07-03 | 湖南云箭集团有限公司 | Hydraulic generator thrust tile grinder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2328467Y (en) * | 1998-07-08 | 1999-07-14 | 余环钧 | Circular support valve grinder |
| CN1974130A (en) * | 2006-12-08 | 2007-06-06 | 德阳东瑞电站设备有限公司 | Hydraulic generator mirror plate grinding apparatus and process |
| CN200945576Y (en) * | 2006-09-04 | 2007-09-12 | 耿炳楼 | Diamond compact freely-rotary type grinder |
| CN101053069A (en) * | 2004-11-01 | 2007-10-10 | 株式会社荏原制作所 | Polishing device |
| US20110223836A1 (en) * | 2010-03-12 | 2011-09-15 | Duescher Wayne O | Three-point fixed-spindle floating-platen abrasive system |
| CN201989045U (en) * | 2011-01-13 | 2011-09-28 | 宜昌市亿凌科技开发有限公司 | Runner plate grinding equipment |
-
2012
- 2012-03-31 CN CN2012100920457A patent/CN103358224A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2328467Y (en) * | 1998-07-08 | 1999-07-14 | 余环钧 | Circular support valve grinder |
| CN101053069A (en) * | 2004-11-01 | 2007-10-10 | 株式会社荏原制作所 | Polishing device |
| CN200945576Y (en) * | 2006-09-04 | 2007-09-12 | 耿炳楼 | Diamond compact freely-rotary type grinder |
| CN1974130A (en) * | 2006-12-08 | 2007-06-06 | 德阳东瑞电站设备有限公司 | Hydraulic generator mirror plate grinding apparatus and process |
| US20110223836A1 (en) * | 2010-03-12 | 2011-09-15 | Duescher Wayne O | Three-point fixed-spindle floating-platen abrasive system |
| CN201989045U (en) * | 2011-01-13 | 2011-09-28 | 宜昌市亿凌科技开发有限公司 | Runner plate grinding equipment |
Non-Patent Citations (1)
| Title |
|---|
| 洪国标等: "镜板研磨机的改进与思考", 《水电自动化与大坝监测》, vol. 32, no. 6, 20 December 2008 (2008-12-20), pages 34 - 35 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10292674B2 (en) | 2015-10-15 | 2019-05-21 | Siemens Healthcare Gmbh | Method for computing a CT scanner protocol |
| CN106272032A (en) * | 2016-10-31 | 2017-01-04 | 国网福建省电力有限公司 | Runner plate grinder |
| CN109093498A (en) * | 2018-08-30 | 2018-12-28 | 国家电网公司 | A kind of intelligent full-automatic hydraulic generator thrust bearing runner plate grinder |
| CN109093498B (en) * | 2018-08-30 | 2024-02-06 | 国家电网公司 | Intelligent full-automatic hydraulic generator thrust bearing mirror plate grinding machine |
| CN111360639A (en) * | 2020-02-25 | 2020-07-03 | 湖南云箭集团有限公司 | Hydraulic generator thrust tile grinder |
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Application publication date: 20131023 |