CN105415103A - Field turning device for exciting sliding ring of steam turbine generator set and field construction method - Google Patents
Field turning device for exciting sliding ring of steam turbine generator set and field construction method Download PDFInfo
- Publication number
- CN105415103A CN105415103A CN201510939988.2A CN201510939988A CN105415103A CN 105415103 A CN105415103 A CN 105415103A CN 201510939988 A CN201510939988 A CN 201510939988A CN 105415103 A CN105415103 A CN 105415103A
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- CN
- China
- Prior art keywords
- slip ring
- turning device
- grinding
- excitation slip
- turbine
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
- B24B47/203—Drives or gearings; Equipment therefor relating to feed movement driven by hand
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention provides a field turning device for an exciting sliding ring of a steam turbine generator set and a field construction method, and aims at solving the problems that the surface of an existing exciting sliding ring of the steam turbine generator set is high in roughness and needed to be turned, and the repair process is complex, costs a lot of time and influences the normal running of the steam turbine generator set, and as a result, the repair cost is increased. The field turning device is characterized in that an adjusting plate is arranged in a mounting groove, wherein the adjusting plate can slide along the length direction of the mounting groove in a reciprocating manner; the upper surface of the adjusting plate is aligned to the upper surface of a base; a feeding and returning tool rack is mounted on the upper surface of the adjusting plate, and the length direction of the feeding and returning tool rack is vertical to the length direction of the adjusting plate; a grinding machine being 300mm in length is mounted at one end of the feeding and returning tool rack; an axis of a grinding sheet on the grinding machine is arranged in parallel to the axis of the exciting sliding ring. The field turning device is applied to the field of steam turbines.
Description
Technical field
The present invention relates to a kind of field turning device and component on site construction method, be specifically related to a kind of turbine LP rotors excitation slip ring field turning device and component on site construction method.
Background technology
In actual production, generating unit excitation slip ring and carbon brush contact site produce strong spark and cause gap bridge busbar blow and be forced to stop.There is serious groove mark in excitation slip ring surface on inspection, the maximum point degree of depth reaches about 1mm, surface roughness Ra less than 12.5, present situation is seriously overproof compared with designing requirement, and surface occurs that serious groove mark causes carbon brush and the loose contact of excitation slip ring to be the main causes producing spark and can not generate electricity.Excitation slip ring surface must process again for this reason, generator amature need be pulled down and be transported to producer and carry out turnery processing by repair method routinely, such repairing approximately needs about one month time that Turbo-generator Set can be made to reach normal operation, maintenance procedures is complicated, maintenance time is long, affects turbine LP rotors and normally runs.
Summary of the invention
The present invention is large for solving existing turbine LP rotors excitation slip ring surface roughness, when needing to carry out turnery processing, maintenance procedures is complicated, maintenance time is long, and affect turbine LP rotors normally to run, thus add the problem of maintenance cost, and then a kind of turbine LP rotors excitation slip ring field turning device and component on site construction method are proposed.
The present invention is the technical scheme taked that solves the problem: turbine LP rotors excitation slip ring field turning device comprises base, adjustment plate, advance and retreat knife rest and abrasive machine, base is disc, base upper surface is radially processed with mounting groove, adjustment plate is arranged in mounting groove, and adjustment plate can slidably reciprocate along the length direction of mounting groove, the upper surface setting concordant with the upper surface of base of adjustment plate, advance and retreat knife rest is arranged on the upper surface of adjustment plate, and the length direction of advance and retreat knife rest vertically to be arranged with the length direction of adjustment plate, abrasive machine is arranged on one end of advance and retreat knife rest, the length of abrasive machine is 300mm, the axle center of the grinding wheel on abrasive machine and the axis parallel of excitation slip ring are arranged.
A component on site construction method for turbine LP rotors excitation slip ring field turning device, specifically comprises following construction procedure,
Lead frame on step one, the base plate of use channel-section steel between steam turbine and generator, adjusts left and right and the front and back depth of cut, is fixed on by base on framework by the field turning device completed;
Step 2, grinding: steam turbine is adjusted to slow speed running, about 100r/min adjusted to by revolution, advance and retreat knife rest is utilized to regulate the amount of feeding of abrasive machine, abrasive machine is made slowly to contact grinding with excitation slip ring, first roughly grind with 60 alundum wheel sheets, grind each point cantact evenly after, use 100 alundum wheel sheets fine grindings instead;
Step 3, grinding and polishing: after grinding, excitation slip ring surface circle jumping degree is 0.06mm, roughness Ra less than 12.5, then grinding and polishing process is carried out, with 200 order sand paper, steam turbine revolution is adjusted to operation, adjustment revolution is roughly ground at 150 ~ 200r/min, when surface roughness Ra reaches below 1.6, adjustment steam turbine revolution reaches 200 ~ 350r/min, carry out fine grinding with 500 order sand paper and oilstone again, the revolution 1000 ~ 1500r/min of adjustment steam turbine uses abrasive pastes polishing again, finally makes the surface roughness of excitation slip ring reach below Ra0.8.
The invention has the beneficial effects as follows: structure of the present invention is simple, traditional excitation slip ring is needed the situation delivering to producer's repairing turning after dismantling, the situation of turning repairing is carried out at the scene of changing into, moving left and right of advance and retreat knife rest can be realized by the adjustment plate that base is arranged, advance and retreat knife rest can move forward and backward, and the total length of abrasive machine is shortened at 300mm, because working space effective between steam turbine and generator is within 400mm × 600mm, so make truning fixture just have the activity space of 100mm at left and right directions, and during turning, steam turbine can operate, keep in repair easy, fast, cost saving, time between overhauls(TBO) is short, maintenance cost is reduced about 99.9%.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention, and Fig. 2 is the structural representation of base, and Fig. 3 is the structural representation of adjustment plate, and Fig. 4 is the structural representation of advance and retreat knife rest.
Detailed description of the invention
Detailed description of the invention one: composition graphs 1, Fig. 2, Fig. 3 and Fig. 4 illustrates present embodiment, described in present embodiment, turbine LP rotors excitation slip ring field turning device comprises base 1, adjustment plate 2, advance and retreat knife rest 3 and abrasive machine 4, base 1 is disc, base 1 upper surface is radially processed with mounting groove 1-1, adjustment plate 2 is arranged in mounting groove 1-1, and adjustment plate 2 can slidably reciprocate along the length direction of mounting groove 1-1, the upper surface setting concordant with the upper surface of base 1 of adjustment plate 2, advance and retreat knife rest 3 is arranged on the upper surface of adjustment plate 2, and the length direction of advance and retreat knife rest 3 vertically to be arranged with the length direction of adjustment plate 2, abrasive machine 4 is arranged on one end of advance and retreat knife rest 3, the length of abrasive machine 4 is 300mm, the axle center of the grinding wheel 4-1 on abrasive machine 4 and the axis parallel of excitation slip ring 6 are arranged.
In the present invention, according to the position of excitation slip ring 6, regulate the position of grinding wheel 4-1 on abrasive machine 4, advance and retreat knife rest 3 can carry out the adjustment of fore-and-aft direction, adjustment plate 2 can drive advance and retreat knife rest 3 to carry out the adjustment of left and right directions, solve the deficiency of carrying out after existing excitation slip ring 6 needs dismounting keeping in repair, save maintenance time and maintenance cost.
Detailed description of the invention two: composition graphs 3 illustrates present embodiment, the upper surface adjusting plate 2 described in present embodiment is provided with multiple elongated hole 2-1, and the length direction of each elongated hole 2-1 is consistent with the length direction of adjustment plate 2 to be arranged.Setting like this, makes adjustment plate 2 can slide along the length direction of elongated hole 2-1, regulates the right position of abrasive machine 4.Other composition and annexation identical with detailed description of the invention one.
Detailed description of the invention three: composition graphs 3 illustrates present embodiment, adjusts plate 2 and is arranged in mounting groove 1-1 by multiple bolt 5, be provided with a bolt 5 in each elongated hole 2-1 described in present embodiment.Setting like this, multiple bolt 5 plays spacing and fixation.Other composition and annexation identical with detailed description of the invention one or two.
Detailed description of the invention four: the component on site construction method of the turbine LP rotors excitation slip ring field turning device described in the arbitrary detailed description of the invention of a kind of detailed description of the invention one to three, specifically comprises following construction procedure,
Lead frame on step one, the base plate of use channel-section steel between steam turbine and generator, adjusts left and right and the front and back depth of cut, is fixed on framework by base 1 by the field turning device completed;
Step 2, grinding: steam turbine is adjusted to slow speed running, about 100r/min adjusted to by revolution, advance and retreat knife rest 3 is utilized to regulate the amount of feeding of abrasive machine, abrasive machine 4 is made slowly to contact grinding with excitation slip ring 6, first roughly grind with 60 alundum wheel sheet 4-1, grind each point cantact evenly after, use 100 alundum wheel sheet 4-1 instead and refine;
Step 3, grinding and polishing: after grinding, excitation slip ring 6 surface circle jumping degree is 0.06mm, roughness Ra less than 12.5, then grinding and polishing process is carried out, with 200 order sand paper, steam turbine revolution is adjusted to operation, adjustment revolution is roughly ground at 150 ~ 200r/min, when surface roughness Ra reaches below 1.6, adjustment steam turbine revolution reaches 200 ~ 350r/min, carry out fine grinding with 500 order sand paper and oilstone again, the revolution 1000 ~ 1500r/min of adjustment steam turbine uses abrasive pastes polishing again, finally makes the surface roughness of excitation slip ring 6 reach below Ra0.8.
Detailed description of the invention five: described in present embodiment, the thickness of step 2 medium plain emery wheel sheet 4-1 is 20mm, the thickness of excitation slip ring 6 is 60mm, and adjustment advance and retreat knife rest 3, until complete for whole for the circumferential side wall of excitation slip ring 6 grinding.Setting like this, avoids, in the process adjusted advance and retreat knife rest 3, causing accidental injury to staff, when adjusting advance and retreat knife rest 3, needs out of service for abrasive machine 4.Other composition and annexation identical with detailed description of the invention four.
Detailed description of the invention six: in step 2 described in present embodiment, when the surface of grinding wheel 4-1 occurs rough and uneven in surface, continues after utilizing diamond pen trimming wheel surface to make wheel face keeping parallelism to carry out grinding to excitation slip ring 6.Setting like this, makes wheel face remain parastate, ensures the uniformity to excitation slip ring 6 grinding.Other composition and annexation identical with detailed description of the invention five.
Operation principle
The present invention operationally, moving left and right of advance and retreat knife rest 3 can be realized by the adjustment plate 2 that base 1 is arranged, advance and retreat knife rest 3 can move forward and backward, and the total length of abrasive machine 4 is shortened at 300mm, because working space effective between steam turbine and generator is within 400mm × 600mm, so make truning fixture just have the activity space of 100mm at left and right directions, and during turning, steam turbine can operate, keep in repair easy, fast, cost saving, time between overhauls(TBO) is short, adopt this component on site construction method, the service work of excitation slip ring 6 is made to shift to an earlier date half wheat harvesting period completion, by generated energy 250,000 Kwh of every day, often degree electricity 0.368 yuan of calculating, add other fees, economize on the use of funds large about more than 140 ten thousand yuan.And the material that the present invention consumes in formulating, implementing, work time cost hundreds of unit altogether, insignificant.
Claims (6)
1. a turbine LP rotors excitation slip ring field turning device, it is characterized in that: turbine LP rotors excitation slip ring field turning device comprises base (1), adjustment plate (2), advance and retreat knife rest (3) and abrasive machine (4), base (1) is disc, base (1) upper surface is radially processed with mounting groove (1-1), adjustment plate (2) is arranged in mounting groove (1-1), and adjustment plate (2) can slidably reciprocate along the length direction of mounting groove (1-1), the upper surface of adjustment plate (2) and the concordant setting of upper surface of base (1), advance and retreat knife rest (3) is arranged on the upper surface of adjustment plate (2), and the length direction of advance and retreat knife rest (3) vertically to be arranged with the length direction of adjustment plate (2), abrasive machine (4) is arranged on one end of advance and retreat knife rest (3), the length of abrasive machine (4) is 300mm, the axle center of the grinding wheel (4-1) on abrasive machine (4) and the axis parallel of excitation slip ring (6) are arranged.
2. turbine LP rotors excitation slip ring field turning device according to claim 1, it is characterized in that: the upper surface of adjustment plate (2) is provided with multiple elongated hole (2-1), the length direction of each elongated hole (2-1) is consistent with the length direction of adjustment plate (2) to be arranged.
3. turbine LP rotors excitation slip ring field turning device according to claim 1 and 2, it is characterized in that: adjustment plate (2) is arranged in mounting groove (1-1) by multiple bolt (5), is provided with a bolt (5) in each elongated hole (2-1).
4. a component on site construction method for the turbine LP rotors excitation slip ring field turning device described in the arbitrary claim of claim 1-3, is characterized in that: specifically comprise following construction procedure,
Lead frame on step one, the base plate of use channel-section steel between steam turbine and generator, adjusts left and right and the front and back depth of cut, is fixed on framework by base (1) by the field turning device completed;
Step 2, grinding: steam turbine is adjusted to slow speed running, about 100r/min adjusted to by revolution, advance and retreat knife rest (3) is utilized to regulate the amount of feeding of abrasive machine (4), abrasive machine (4) is made slowly to contact grinding with excitation slip ring (6), 60 alundum wheel sheets (4-1) are first used to roughly grind, grind each point cantact evenly after, use 100 alundum wheel sheets (4-1) fine grindings instead;
Step 3, grinding and polishing: after grinding, excitation slip ring (6) surface circle jumping degree is 0.06mm, roughness Ra less than 12.5, then grinding and polishing process is carried out, with 200 order sand paper, steam turbine revolution is adjusted to operation, adjustment revolution is roughly ground at 150 ~ 200r/min, when surface roughness Ra reaches below 1.6, adjustment steam turbine revolution reaches 200 ~ 350r/min, fine grinding is carried out again with 500 order sand paper and oilstone, revolution 1000 ~ the 1500r/min of adjustment steam turbine uses abrasive pastes polishing again, the surface roughness of excitation slip ring (6) is finally made to reach below Ra0.8.
5. the component on site construction method of turbine LP rotors excitation slip ring field turning device according to claim 4, it is characterized in that: the thickness of step 2 medium plain emery wheel sheet (4-1) is 20mm, the thickness of excitation slip ring (6) is 60mm, adjustment advance and retreat knife rest (3), until complete for the whole grinding of circumferential side wall of excitation slip ring (6).
6. the component on site construction method of turbine LP rotors excitation slip ring field turning device according to claim 5, it is characterized in that: in step 2, when grinding wheel (4-1) surface occurs rough and uneven in surface, continue after utilizing diamond pen trimming wheel surface to make wheel face keeping parallelism to carry out grinding to excitation slip ring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510939988.2A CN105415103A (en) | 2015-12-11 | 2015-12-11 | Field turning device for exciting sliding ring of steam turbine generator set and field construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510939988.2A CN105415103A (en) | 2015-12-11 | 2015-12-11 | Field turning device for exciting sliding ring of steam turbine generator set and field construction method |
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| Publication Number | Publication Date |
|---|---|
| CN105415103A true CN105415103A (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510939988.2A Pending CN105415103A (en) | 2015-12-11 | 2015-12-11 | Field turning device for exciting sliding ring of steam turbine generator set and field construction method |
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| Country | Link |
|---|---|
| CN (1) | CN105415103A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110576393A (en) * | 2018-07-19 | 2019-12-17 | 蓝思科技（长沙）有限公司 | Integrated processing jig and method thereof |
| CN110935891A (en) * | 2018-09-21 | 2020-03-31 | 中车株洲电力机车研究所有限公司 | Turning device for collector ring of generator on fan |
| CN116034084A (en) * | 2020-11-05 | 2023-04-28 | 科尼全球公司 | Arrangement and method for aligning wheel blocks on an end bracket, in particular a crane end bracket |
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| JPS6339757A (en) * | 1986-07-31 | 1988-02-20 | Mitsubishi Heavy Ind Ltd | Polishing device for rotor bore |
| CN201570952U (en) * | 2009-12-17 | 2010-09-01 | 天津荣程联合钢铁集团有限公司 | Turning device with motor slip ring |
| CN102059626A (en) * | 2010-08-09 | 2011-05-18 | 中信重工机械股份有限公司 | Field processing method for grinding surface of slip ring in feeding slip ring body |
| CN102229085A (en) * | 2011-06-23 | 2011-11-02 | 江门市南洋船舶工程有限公司 | Onsite large-sized flange grinding machine |
| CN202424422U (en) * | 2011-10-19 | 2012-09-05 | 中国神华能源股份有限公司 | Equipment for restoring slip ring of generator on site |
| CN203973335U (en) * | 2014-06-25 | 2014-12-03 | 江苏永钢集团有限公司 | A kind of Generator Slip Ring on-line grinding device |
| CN205166551U (en) * | 2015-12-11 | 2016-04-20 | 中煤能源黑龙江煤化工有限公司 | On --spot turning device of steam turbine power generation unit excitation sliding ring |
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2015
- 2015-12-11 CN CN201510939988.2A patent/CN105415103A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6339757A (en) * | 1986-07-31 | 1988-02-20 | Mitsubishi Heavy Ind Ltd | Polishing device for rotor bore |
| CN201570952U (en) * | 2009-12-17 | 2010-09-01 | 天津荣程联合钢铁集团有限公司 | Turning device with motor slip ring |
| CN102059626A (en) * | 2010-08-09 | 2011-05-18 | 中信重工机械股份有限公司 | Field processing method for grinding surface of slip ring in feeding slip ring body |
| CN102229085A (en) * | 2011-06-23 | 2011-11-02 | 江门市南洋船舶工程有限公司 | Onsite large-sized flange grinding machine |
| CN202424422U (en) * | 2011-10-19 | 2012-09-05 | 中国神华能源股份有限公司 | Equipment for restoring slip ring of generator on site |
| CN203973335U (en) * | 2014-06-25 | 2014-12-03 | 江苏永钢集团有限公司 | A kind of Generator Slip Ring on-line grinding device |
| CN205166551U (en) * | 2015-12-11 | 2016-04-20 | 中煤能源黑龙江煤化工有限公司 | On --spot turning device of steam turbine power generation unit excitation sliding ring |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110576393A (en) * | 2018-07-19 | 2019-12-17 | 蓝思科技（长沙）有限公司 | Integrated processing jig and method thereof |
| CN110935891A (en) * | 2018-09-21 | 2020-03-31 | 中车株洲电力机车研究所有限公司 | Turning device for collector ring of generator on fan |
| CN110935891B (en) * | 2018-09-21 | 2021-04-27 | 中车株洲电力机车研究所有限公司 | Turning device for collector ring of generator on fan |
| CN116034084A (en) * | 2020-11-05 | 2023-04-28 | 科尼全球公司 | Arrangement and method for aligning wheel blocks on an end bracket, in particular a crane end bracket |
| US11891280B2 (en) | 2020-11-05 | 2024-02-06 | Konecranes Global Corporation | Arrangement and method for aligning a wheel block on an end carriage, in particular a crane end carriage |
| CN116034084B (en) * | 2020-11-05 | 2024-03-26 | 科尼全球公司 | Arrangement and method for aligning wheel blocks on an end bracket, in particular a crane end bracket |
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Application publication date: 20160323 |
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