CN203785596U - Tool for adjusting axial clearance of guide vane - Google Patents
Tool for adjusting axial clearance of guide vane Download PDFInfo
- Publication number
- CN203785596U CN203785596U CN201320621024.XU CN201320621024U CN203785596U CN 203785596 U CN203785596 U CN 203785596U CN 201320621024 U CN201320621024 U CN 201320621024U CN 203785596 U CN203785596 U CN 203785596U
- Authority
- CN
- China
- Prior art keywords
- guide vane
- stator
- adjusting
- bolt
- instrument
- 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.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 230000000630 rising effect Effects 0.000 claims abstract description 4
- 230000007423 decrease Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 16
- 238000009434 installation Methods 0.000 abstract description 14
- 238000004904 shortening Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Hydraulic Turbines (AREA)
Abstract
The utility model relates to a tool for adjusting the axial clearance of a guide vane and an adjusting method. The specific technical scheme of the utility model is that the tool comprises an adjusting plate which is a steel plate, wherein the center of the steel plate is provided with an adjusting hole, and two sides of the steel plate are respectively provided with two fixing threaded holes; an adjusting bolt, wherein the size of the thread of the adjusting bolt is corresponding to a threaded hole of a guide vane shaft, and the adjusting bolt is used for achieving the rising or descending of the guide vane; a fixing bolt, wherein the size of the thread of the fixing bolt is corresponding to a threaded hole of a guide vane lever, and the fixing bolt is used for fixing the adjusting plate; a depth micrometer which is used for measuring the distance from the adjusting plate to an end face of the guide vane shaft; and a feeler gauge which is used for measuring the clearance sizes from the guide vane to a top cover and a bottom ring. The tool provided by the utility model carries out installation and adjustment through the exposed adjusting plate and the adjusting bolt, and is simple and reliable in structure. After one-time adjustment and recording of the axial clearance of the guide vane, a guide vane end cover is directly installed, thereby shortening the installation period of a power station, improving the installation efficiency, and reducing the cost of installation.
Description
Technical field
The utility model relates to a kind of guide vanes of water turbine end play and adjusts instrument and method of adjustment.
Background technology
The stator end play adjustment more important operation that to be the hydraulic turbine install in building site, power station, the control of stator end play is rotated flexibly stator, and to make stator hydraulic turbine water leakage minimum when complete shut-down be vital.
Traditional stator installation method is:
1, installing the parts such as stator, base ring, top cover, guide vane lever is installed on guide vane teunnion, the distance L of plane on preliminary surveying stator upper surface and guide vane lever, design gaps δ top with distance L-use stator and top cover, the thickness t that obtains pad is (t=L-δ top), by regulating pad on thickness t pad, cover stator end cap, directly tighten the anti-heavy bolt of stator end cap; Said process needs many people to coordinate to remeasure the end play of stator and top cover, base ring; If end play is not right, again pull down stator end cap, repeat said process, repeatedly install and remove stator end cap, increase and decrease regulates spacer thickness, until qualified to stator end play.
This process need to repeat 3～5 times conventionally, and the stator end play adjustment of a hydraulic turbine is installed, and by 24 stators of a machine, needs altogether to repeat 70～120 times, and it is very inconvenient that install in building site, wastes time and energy.
2, base ring and top cover are arranged on the seat ring installed surface of machined mistake not, and the head room of its elevation, water distributor is to reach by being added in interplanar ring washer on base ring and foundation ring, top cover and seat ring.After installing the parts such as stator, base ring, top cover, guide vane lever and stator end cap are installed on stator, the tearable pad that between stator end cap and guide vane teunnion end face, filling is bonded by multilayer aluminum alloy sheet, can be according to the size of stator upper end and stator end cover clearance, suitably tear unnecessary layer pad off, directly tighten again anti-heavy bolt, stator is suspended on connecting lever.
This process also needs the end play of many people conjunction measuring stator and top cover, base ring, if end play is not right, again pulls down stator end cap, repeats said process, until qualified to stator end play.Common single stator regulates this process also to need repetition 3～5 times, and 24 stator meters of a machine, need repeat nearly more than 100 times altogether, and building site peace wastes time and energy.
< < power station mechanical & electrical technology > > the 02nd phase in 2004, author Xu great Qiao, the method that has disclosed the adjustment of a kind of stator end clearance in > > is adjusted in < < Three Gorges Left Bank Hydropower Station VGS unit stator end clearance:
1. the measurement of stator end face total backlash:
Stator end clearance adopts clearance gauge and dial gauge to measure, and with clearance gauge, is as the criterion, and in conjunction with dial gauge monitoring, first at bottom bracket axle and stator bottom, two dial gauges is installed respectively; Then with specific purpose tool, promote stator to top.With clearance gauge, measure bottom gap, record dial gauge reading simultaneously, then dial gauge makes zero, and transfers stator to base ring, until bottom gap is zero; Finally record dial gauge reading.
2. the distribution of stator end face underclearance:
According to actual end face total backlash, according to distribution principle, draw bottom gap theoretical value.
3. adjust the measurement of pad:
After end clearance is assigned, adopt lead extrusion method to measure the thickness of adjusting pad.Adjusting pad design thickness is that H=12mm, adjustment pad arrival actual (real) thickness are H=15mm, leave 3mm process redundancy, because stator end face total backlash is less than 2mm, cannot be directly with adjusting pad prepackage, therefore should first process the prepackage pad at thickness H0=10mm, the galvanized wire that coordinates Φ 4mm, measures the actual (real) thickness of adjusting pad.First with outside micrometer symmetrical measurement, pre-install 3 thickness of pad and record measuring position, covering stator end cap.
There is following shortcoming in the method: 1) adjust pad arrival actual (real) thickness and leave process redundancy, most of power station is located in outlying remote mountain area, there is no machining factory, without working ability, and on-the-spot processing difficulties; 2) in measurement, use galvanized wire, leaded article are harmful to health, when discarded, pollute the environment.
At present also without the instrument that is specifically designed to its stator end play adjustment.It is very inconvenient that install in classic method building site, wastes time and energy, and installation period is long, and installation cost is high.
Summary of the invention
The utility model, for above-mentioned the deficiencies in the prior art, provides a kind of stator end play of convenient practicality to adjust instrument.
Concrete technical scheme of the present utility model is:
Stator end play is adjusted an instrument, it is characterized in that this kit contains
One adjustable plate: center has the steel plate that two fixing threaded holes are respectively opened in adjustment hole, both sides;
One adjusting bolt: the bolt that thread size is corresponding with screw on guide vane teunnion, for realizing stator in axial rising or decline;
Set bolt: the bolt that thread size is corresponding with screw on guide vane lever, for secured adjusted plate;
Micrometric depth gauge: for measuring secured adjusted plate to the instrument of guide vane teunnion face size;
Clearance gauge: for measuring the instrument of the gap size of stator and top cover, base ring.
In guide vane lever end, itself have screw, two fixing threaded holes are respectively opened in adjustable plate both sides, and bolt is after closing, and adjustable plate can well coordinate closely with guide vane lever end, facilitates Measurement accuracy stator end play.
The method that application rights requires 1 stator end play adjustment instrument to carry out the adjustment of stator end play, is characterized in that being comprised of following steps:
1. at stator and guide vane lever end position place, load onto adjustable plate and set bolt, and the set bolt that screws up with a wrench;
In guide vane lever end, itself there is screw, for measuring stator axial clearance regulation plate fixed position, need only expose guide vane key.
2. at adjustable plate centre adjustment hole, pack adjusting bolt into, and screw in the screw of stator axle head, with spanner, turn clockwise or counterclockwise adjusting bolt for adjusting stator elevation position, with clearance gauge, measure the gap size of stator and top cover face, stator and base ring face, make the end play of stator upper and lower end face meet design preset requirement value;
3. with micrometric depth gauge, measure guide vane teunnion end face and adjustable plate bottom surface distance and note down, packing guide vane key simultaneously into;
4. pull down adjustment instrument, the product that is encased inside same thickness by measurement size is adjusted pad;
5. changing cover plate of guide blade into is contained in stator and guide vane lever end position and fixes;
6. again with clearance gauge, measure the gap size of stator and top cover, base ring, judge whether to meet preset requirement value.
Described adjustable plate is not for to cover in the pattern of entrance bucket shaft head completely, and do not cover guide vane key.
Stator end play adjustment instrument relies on the adjustable plate and the adjusting bolt that expose that adjustment work is installed, simple and reliable for structure, once adjusts and records after stator end play, stator end cap is directly installed, the installation period in power station is shortened, improved installation effectiveness, reduce installation cost.
Accompanying drawing explanation
Fig. 1 is that the utility model is adjusted instrument and guide vane structure schematic diagram.
Fig. 2 is that the utility model is adjusted instrument and stator plan structure schematic diagram.
Fig. 3 is the utility model micrometric depth gauge schematic diagram.
Fig. 4 is the utility model clearance gauge schematic diagram.
Wherein: 1, adjustable plate; 2, adjusting bolt; 3, set bolt; 4, micrometric depth gauge; 5, clearance gauge; 6, micrometric depth gauge measuring and adjusting plate is to the measuring position of guide vane teunnion end face; 7, guide vane key; 8, guide vane lever; 9, stator, 10, the gap of stator and top cover; 11, the gap of stator and base ring.
Embodiment
As Figure 1-Figure 4, the parts of clearance between guide vanes adjustment instrument mainly consist of adjustable plate 1, adjusting bolt 2, set bolt 3, micrometric depth gauge 4, clearance gauge 5, spanner.
This clearance between guide vanes is adjusted the more important operation that tool applications is installed in building site, power station in the hydraulic turbine--during the adjustment of stator end play, uses, the control of stator end play is rotated flexibly stator, and to make stator water leakage minimum when complete shut-down be most important.
The instrument that uses this stator end play to adjust, adjustable plate 1 two ends pack two set bolts 3 into, the bolt that set bolt 3 thread sizes are consistent with screw on guide vane lever 8, by set bolt 3, adjustable plate 1 and guide vane lever 8 is fixing closing, adjustable plate 1 central authorities have 1 adjustment hole, pack adjusting bolt 2 into.Adjusting bolt 2 packs into from adjustable plate 1 central openings, is screwed in the screw of stator axle head, with spanner clockwise or rotate counterclockwise adjusting bolt, realizes stator in axial rising or decline.
With clearance gauge 5, measure the gap size of stators 9 and top cover, base ring,, when the gap 11 of gap 10, stator and the base ring of stator and top cover meets layout design value (default design load), use micrometric depth gauge 4 measuring and adjusting plates 1 to arrive guide vane teunnion face size record.By this measurement size, take the adjusting pad of same thickness size, liner, on guide vane teunnion end face, covers guide vane teunnion end cap tight, remeasures the gap of gap, stator and the base ring of stator and top cover, meets layout design value.
Adopt clearance between guide vanes to adjust the more important operation that tool applications is installed in building site, power station in the hydraulic turbine--during the adjustment of stator end play, use, conventionally only need can adjust for 1 time, the stator end play adjustment of a hydraulic turbine is installed, by 24 stators of a machine, only need to repeat 24 times, building site is installed very convenient, time saving and energy saving, both save installation period, guaranteed installation quality, and can reduce installation cost again.
Adjustable plate in this clearance between guide vanes adjustment instrument is designed to not cover in completely the pattern of entrance bucket shaft head, and do not cover guide vane key, the convenient pit gauge measuring and adjusting plate of using of this structure is to guide vane teunnion face size, by its change in size, determine fast whether guide vane teunnion end clearance reaches designing requirement, the situation of the guide vane key of macroscopic examination simultaneously.
Due to clearance between guide vanes, to adjust instrument easy to use and convenient when the adjustment of stator end play, can guarantee the installation quality of this operation of the hydraulic turbine, improves the reliability of hydraulic turbine complete machine.
Claims (3)
1. stator end play is adjusted an instrument, it is characterized in that this kit contains
One adjustable plate: center has the steel plate that two fixing threaded holes are respectively opened in adjustment hole, both sides;
One adjusting bolt: the bolt that thread size is corresponding with screw on guide vane teunnion, for realizing stator in axial rising or decline;
Set bolt: the bolt that thread size is corresponding with screw on guide vane lever, for secured adjusted plate;
Micrometric depth gauge: for measuring secured adjusted plate to the instrument of guide vane teunnion face size;
Clearance gauge: for measuring the instrument of the gap size of stator and top cover, base ring.
2. stator end play according to claim 1 is adjusted instrument, it is characterized in that described adjustable plate size does not cover in entrance bucket shaft head completely, and exposes guide vane key.
3. stator end play according to claim 1 is adjusted instrument, it is characterized in that described instrument also comprises spanner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320621024.XU CN203785596U (en) | 2013-10-09 | 2013-10-09 | Tool for adjusting axial clearance of guide vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320621024.XU CN203785596U (en) | 2013-10-09 | 2013-10-09 | Tool for adjusting axial clearance of guide vane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203785596U true CN203785596U (en) | 2014-08-20 |
Family
ID=51321774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320621024.XU Expired - Lifetime CN203785596U (en) | 2013-10-09 | 2013-10-09 | Tool for adjusting axial clearance of guide vane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203785596U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547227A (en) * | 2016-01-28 | 2016-05-04 | 国家电网公司 | Method and device for measurement of gap between full-circle guide blade thrusting pressure plate and guide blade wall |
| CN106194287A (en) * | 2016-08-26 | 2016-12-07 | 哈尔滨汽轮机厂有限责任公司 | A kind of guiding mechanism of Blast Furnace Gas Turbine first-level guide blade |
| CN107575332A (en) * | 2017-09-30 | 2018-01-12 | 国家电网公司 | A kind of guide vanes of water turbine end clearance adjusting apparatus and method of adjustment |
-
2013
- 2013-10-09 CN CN201320621024.XU patent/CN203785596U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547227A (en) * | 2016-01-28 | 2016-05-04 | 国家电网公司 | Method and device for measurement of gap between full-circle guide blade thrusting pressure plate and guide blade wall |
| CN106194287A (en) * | 2016-08-26 | 2016-12-07 | 哈尔滨汽轮机厂有限责任公司 | A kind of guiding mechanism of Blast Furnace Gas Turbine first-level guide blade |
| CN107575332A (en) * | 2017-09-30 | 2018-01-12 | 国家电网公司 | A kind of guide vanes of water turbine end clearance adjusting apparatus and method of adjustment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203785596U (en) | Tool for adjusting axial clearance of guide vane | |
| CN209214524U (en) | A kind of spindle of hydroelectric generator set sealing wearing plate, facing plate measurement dedicated unit | |
| CN101343879B (en) | Secondary grouting construction method of machine setting | |
| CN104191264B (en) | A kind of processing Gas Turbine Power turbine guide vane sheet reference plane clamping and positioning device | |
| CN109405714A (en) | Reactor coolant pump thrust disc measurement of fit clearance device | |
| CN203245603U (en) | Lifting machine tool | |
| CN210321690U (en) | Blade root arc measuring device for turbine engineering | |
| CN202427729U (en) | Screwdown inspection and detection device for hydraulic rolling mill | |
| CN204438968U (en) | Engine piston protrudes cylinder face appliance special for detecting | |
| CN107953067B (en) | A method of for improving the precision of equipment installation for needing brush gasket | |
| CN209085506U (en) | Reactor coolant pump thrust disc measurement of fit clearance device | |
| CN201488688U (en) | Underwater clearance measuring feeler gauge | |
| CN201889487U (en) | Turbine casing drilling jig for turbocharger | |
| CN201757687U (en) | Clamping contact type steel rail wheel weight sensor | |
| CN203672305U (en) | Device for measuring coaxiality between large-length-to-diameter-ratio bore and small-area conical surface | |
| CN203282868U (en) | Horizontalness adjusting mechanism for crossbeam | |
| CN208346789U (en) | Concrete pressure cell Embedded installation device | |
| CN207364154U (en) | A kind of off-course brake friction disc wear indicator | |
| CN207964166U (en) | Gasket type static balance of rotary wheel tool | |
| CN202280023U (en) | Pier body formwork faulting regulator | |
| CN201444034U (en) | Tool for measuring unevenness of steel plate | |
| CN203249618U (en) | Electro-optical distance measurement sensor device | |
| CN202403869U (en) | Standard transducer replacing device for build-up force standard machine | |
| CN201993110U (en) | Movable base for instrument of reactor steel lining of nuclear power station | |
| CN205171542U (en) | Adjustable type rag bolt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140820 |