CN201107142Y - Turbine blade electronic force moment scale - Google Patents
Turbine blade electronic force moment scale Download PDFInfo
- Publication number
- CN201107142Y CN201107142Y CNU2007201167197U CN200720116719U CN201107142Y CN 201107142 Y CN201107142 Y CN 201107142Y CN U2007201167197 U CNU2007201167197 U CN U2007201167197U CN 200720116719 U CN200720116719 U CN 200720116719U CN 201107142 Y CN201107142 Y CN 201107142Y
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Abstract
The utility model discloses a turbine blade electronic force moment balance, which relates to a device used for exactly measuring the absolute moment under the operation state of each moving blade and aims to solve the problem of big error of the dynamic balance of a turbine rotor. A left-hand end electronic balance is fixedly arranged at the upper left end of a balance body; the upper side of the balance body is provided with a slide block; a brace is arranged on the slide block; a locating plate is fixed at the lower side of the brace; the locating plate is arranged in a groove at the upper side of the balance body; the upper side of the brace is provided with a right- hand end electronic balance; the upper side of the left-hand end electronic balance is provided with a left encloser; the upper side of the right-hand end electronic balance is provided with a right encloser; the upper side of the left encloser is provided with a base and a root locating plate; a plurality of bolts are arranged on the base; the upper side of the right encloser is provided with a leaf crown location plate. The turbine blade electronic force moment balance is adopted for measuring the absolute moment of each moving blade, the technical requirement of the error of the dynamic balance of the turbine rotor can be achieved. The turbine blade electronic force moment balance is of wide measurement range, high accuracy and simple operation.
Description
Technical field
The utility model relates to the instrument of absolute moment under every moving vane duty of a kind of accurate measurement.
Background technology
Steam turbine is High Temperature High Pressure high-revolving " three a height " genset, and this wherein, and the transient equilibrium of rotor plays crucial effects to the overall performance of steam turbine unit.For many years, this is not ideal enough always for the transient equilibrium of steam turbine unit, has not only influenced the generating efficiency of unit, and has accelerated the wearing and tearing of rotor journal and bearing greatly, has shortened serviceable life.Tracing it to its cause, mainly is that original moment scale structural principle supports for the single armed list, and the blade moment of surveying is relative moment, is not the absolute moment under the actual working state; Its clamping position is a suspension type, locate accurate inadequately, the error of surveying bigger, it is uneven to cause moving vane moment in assembling process to be distributed, and rotor is produced when running up scratch change, and then make bearing produce diameter run-out, wearing and tearing aggravate, and have influenced serviceable life.
The utility model content
The purpose of this utility model is in order to overcome the bigger problem of turbine rotor transient equilibrium error, a kind of turbine blade electronic moment scale to be provided.The utility model comprises scale body 1, left side case 2, right case 14, left end electronic scales 3, right-hand member electronic scales 7, screw 4, bearing 5, slide block 8, blade root location-plate 6, integral shroud location-plate 10, location-plate 13 and supporting plate 16, left end electronic scales 3 is fixedly mounted on the top left end of scale body 1, be provided with slide block 8 above the scale body 1, supporting plate 16 is housed on the slide block 8, location-plate 13 is fixed on the below of supporting plate 16, location-plate 13 is loaded in the groove of scale body 1 top, right-hand member is equipped with right-hand member electronic scales 7 above the supporting plate 16, left end electronic scales 3 tops are provided with left case 2, right-hand member electronic scales 7 tops are provided with right case 14, be provided with bearing 5 and blade root location-plate 6 above the case 2 of a left side, bearing 5 is provided with screw 4, is provided with integral shroud location-plate 10 above the right case 14.The utlity model has following beneficial effect: one, the utility model adopts the structure of two point double base, can measure the absolute moment values of every moving vane, and can reach the technical requirement (30～50 gram centimeter) of turbine rotor transient equilibrium error.Two, measurement range is wide, the precision height; Simple to operate, the efficient height, labour intensity is little; Cost is low, is fit to promote.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present utility model, and Fig. 2 is a vertical view of the present utility model, and Fig. 3 is the A-A cut-open view of Fig. 1.Reference numeral 19 is a turbine blade among the figure.
Embodiment
Embodiment one: referring to Fig. 1, Fig. 2 and Fig. 3, present embodiment is by scale body 1, left side case 2, right case 14, left end electronic scales 3, right-hand member electronic scales 7, screw 4, bearing 5, slide block 8, blade root location-plate 6, integral shroud location-plate 10, location-plate 13 and supporting plate 16 are formed, left end electronic scales 3 is fixedly mounted on the top left end of scale body 1, be provided with slide block 8 above the scale body 1, supporting plate 16 is housed on the slide block 8, location-plate 13 is fixed on the below of supporting plate 16, location-plate 13 is loaded in the groove of scale body 1 top, location-plate 13 can be with the supporting plate longitudinal sliding motion in groove, right-hand member is equipped with right-hand member electronic scales 7 above the supporting plate 16, left end electronic scales 3 tops are provided with left case 2, left side case 2 is fixed on the scale body 1 by packing ring 11 and bolt 12, right-hand member electronic scales 7 tops are provided with right case 14, right case 14 is fixed on the supporting plate 16 by packing ring 11 and bolt 12, be provided with bearing 5 and blade root location-plate 6 above the case 2 of a left side, bearing 5 is provided with screw 4, be provided with integral shroud location-plate 10 above the right case 14, the top of left side case 2 and right case 14 is respectively equipped with two row's chutes 9, to adapt to the moment of measuring linear leaf.
Embodiment two: see Fig. 3, scale body 1 top one side also is provided with Steel Ruler 17, is fixed on the scale body 1 with bolt 18.
Above-mentioned turbine blade electronic moment scale, its principle of work is: see Fig. 1 and Fig. 2, fixed left end electronic scales 3 is the blade root measured place; Can be the integral shroud measured place along with the right-hand member electronic scales 7 that supporting plate 16 horizontally slips on slide block 8.Wherein blade root location-plate 6 and integral shroud location-plate 10 can be inserted in respectively according to the size of blade in the chute of left case 2 and right case 14, but easy on and off slides; And in order to adapt to the moment of measuring linear leaf, each case is provided with two row's chutes 9, and can measure length is the blade moment of 230～1400mm; The measuring accuracy of left end electronic scales 3 and right-hand member electronic scales 7 is 1g, the check weighing scope is 0～50Kg, and is provided with zero key, has reduced the influence of external environment condition, like this, the utility model electronic moment scale just can be measured the moment that all existing steam turbines need be measured the moving vane of moment.Press rotor drawing and moving vane drawing, import the distance of blade root to rotor center at the unit price display screen of left side blade root place left end electronic scales 3, unit is a millimeter; Import the distance of integral shroud to rotor center at the electronic scales unit price display screen of integral shroud measured place, right side right-hand member electronic scales 7, unit is a millimeter.Adjust the position of integral shroud location-plate 10, blade is placed on blade root location-plate 6 and the integral shroud location-plate 10, lean against on the integral shroud location-plate 10, numerical value addition shown in the two electronic scales price screen is the absolute moment values of this blade, can determine the position of every blade then by the differential technique ordering.
Claims (2)
1, a kind of turbine blade electronic moment scale, it comprises scale body (1), left side case (2), right case (14), left end electronic scales (3), right-hand member electronic scales (7), screw (4), bearing (5), slide block (8), blade root location-plate (6), integral shroud location-plate (10), location-plate (13) and supporting plate (16), it is characterized in that left end electronic scales (3) is fixedly mounted on the top left end of scale body (1), be provided with slide block (8) above the scale body (1), supporting plate (16) is housed on the slide block (8), location-plate (13) is fixed on the below of supporting plate (16), location-plate (13) is loaded in the groove of scale body (1) top, right-hand member is equipped with right-hand member electronic scales (7) above the supporting plate (16), left end electronic scales (3) top is provided with left case (2), left side case (2) is fixed on the scale body (1) by packing ring (11) and bolt (12), right-hand member electronic scales (7) top is provided with right case (14), be provided with bearing (5) and blade root location-plate (6) above the left side case (2), bearing (5) is provided with screw (4), be provided with integral shroud location-plate (10) above the right case (14), the top of left case (2) and right case (14) is respectively equipped with two row's chutes (9).
2, according to the described turbine blade electronic moment of claim 1 scale, it is characterized in that it also comprises Steel Ruler (17) and bolt (18), by bolt (18) Steel Ruler (17) is fixed on upside on the scale body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201167197U CN201107142Y (en) | 2007-08-06 | 2007-08-06 | Turbine blade electronic force moment scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201167197U CN201107142Y (en) | 2007-08-06 | 2007-08-06 | Turbine blade electronic force moment scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201107142Y true CN201107142Y (en) | 2008-08-27 |
Family
ID=39958949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201167197U Expired - Lifetime CN201107142Y (en) | 2007-08-06 | 2007-08-06 | Turbine blade electronic force moment scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201107142Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393239A (en) * | 2011-08-25 | 2012-03-28 | 李丹丹 | Turbine blade weighing device and turbine blade sequencing method based on ant colony algorithm |
| CN110160691A (en) * | 2019-07-01 | 2019-08-23 | 哈尔滨工业大学 | Rotary axis system remnants unbalanced moments measuring device and method |
| CN110836748A (en) * | 2019-11-27 | 2020-02-25 | 中国航发沈阳黎明航空发动机有限责任公司 | Engine blade static torque meter calibration system and calibration method |
| CN112097974A (en) * | 2020-09-18 | 2020-12-18 | 魏丽蓉 | Moment testing method and device for turbine moving blade |
-
2007
- 2007-08-06 CN CNU2007201167197U patent/CN201107142Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393239A (en) * | 2011-08-25 | 2012-03-28 | 李丹丹 | Turbine blade weighing device and turbine blade sequencing method based on ant colony algorithm |
| CN110160691A (en) * | 2019-07-01 | 2019-08-23 | 哈尔滨工业大学 | Rotary axis system remnants unbalanced moments measuring device and method |
| CN110160691B (en) * | 2019-07-01 | 2021-04-06 | 哈尔滨工业大学 | Device and method for measuring residual unbalance torque of rotary shaft system |
| CN110836748A (en) * | 2019-11-27 | 2020-02-25 | 中国航发沈阳黎明航空发动机有限责任公司 | Engine blade static torque meter calibration system and calibration method |
| CN112097974A (en) * | 2020-09-18 | 2020-12-18 | 魏丽蓉 | Moment testing method and device for turbine moving blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080827 |
|
| CX01 | Expiry of patent term |