CN103673809A - Detector for wheel grooves of power turbine rotors of gas turbines - Google Patents
Detector for wheel grooves of power turbine rotors of gas turbines Download PDFInfo
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- CN103673809A CN103673809A CN201310594096.4A CN201310594096A CN103673809A CN 103673809 A CN103673809 A CN 103673809A CN 201310594096 A CN201310594096 A CN 201310594096A CN 103673809 A CN103673809 A CN 103673809A
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Abstract
The invention relates to a detector for wheel grooves of power turbine rotors of gas turbines. The detector for the wheel grooves of the power turbine rotors of the gas turbines comprises a base, a detector support, a calibration gauge block and a dial gauge. The detector for the wheel grooves of the power turbine rotors of the gas turbines is manufactured by the aid of a reference plane of the base according to a principle that a perpendicular bisector of a connecting line of two points on a circle passes the circle center. The detector for the wheel grooves of the power turbine rotors of the gas turbines has the advantages that problems that the measurement accuracy is low, the detection data repeatability is poor, the requirement on detection repetition rates cannot be met and machining process data need to be corrected in the existing detection technology for wheel grooves of power turbine rotors of gas turbines can be solved, and the detector is used for detecting the wheel grooves of the power turbine rotors of the gas turbines.
Description
Technical field
The present invention relates to Gas Turbine Power turbine rotor race detector
Background technology
Gas Turbine Power turbine rotor race is the important structure of power turbine blades installation location, and precision and the position degree of race processing have a significant impact whole impeller intensity; Gas turbine blades has adopted vertical tree-like blade root slot, the design theory of vertical tree-like blade root slot is the intensity of wishing blade root drawing, curved, squeeze, cut the strong conditions such as four stress meet.Do not cause like this blade root excessive at a certain stress, and other stress still have in the situation of abundant surplus and destroy.Test shows that tolerance is very large on the vertical load distribution of tree-like blade root slot structure and the impact of stress distribution.
The present situation that actual production detects, due to increasing of volume production wheel disc series products, expense that three-coordinate instrument detects is high is subject to the restriction of production cycle many, is that first and special circumstances product just carry out three-dimensional detection substantially.In real work, large portion's time is detected by technological requirement application digital display calliper.In actual testing process, find that digital display calliper detects data fluctuations large, accuracy of measurement is low, detect Data duplication poor, substantially without repeating, cause data validity to decline, same race, same people are same detects data 0～0.18 fluctuation with digital display calliper, exceeded technical requirement Tolerance of Degree of position more than 0.08, cannot be as the foundation of machine tool program offset data; Make the wheel disc groove processing operation of applying for checking and examination in the technical descriptioon stage, cannot reach requirement and the process data correction that detects repetition rate always.
Summary of the invention
The present invention seeks to as solving the detection technique accuracy of measurement of existing Gas Turbine Power turbine rotor race low, detect Data duplication poor, cannot reach and detect the requirement of repetition rate and the problem of process data correction, propose a kind of combustion aircraft turbine engine power turbine race detector.
The present invention solves the problems of the technologies described above the technical scheme of taking to be:
A kind of Gas Turbine Power turbine rotor race detector of the present invention comprises pedestal, detector support, dial gauge and calibration gauge block;
Detector support support body comprises upper plate, the first riser, the second riser, the first riser is at right angles connected with upper plate one end end face, the second riser is connected with upper plate other end lower surface, two risers in upper plate the same side and two risers be arranged in parallel;
Detector support right-hand member cantilever place is vertically provided with one and adjusts screw, adjusting screw is vertically mounted in adjustment screw, adjust screw and adjust detector support vertical direction height by rotation, detector mid-stent is vertically provided with one and supports screw, supporting screw can lock to be vertically mounted on by set nut and support in screw after adjusting to arbitrary height, set nut is positioned at upper plate top and contacts with upper plate, supporting screw forms supplemental support point in measuring process for detection of instrument, supporting screw positioning height is the difference in height of parts measurement reference field and supporting screw plane used, the first riser lower end level is provided with a dial gauge installation screw, the first riser lower surface is vertically provided with a locking screw holes, locking screw holes is communicated with dial gauge installation screw, lock-screw is vertically mounted in locking screw holes, dial gauge is arranged in dial gauge installation screw by lock-screw locking level, dial gauge measuring junction points to part to be measured,
Pedestal one-piece construction is bad arc-shaped, there is respectively a pin-and-hole at bad arc symmetrical two ends along its thickness direction, register pin of two pin-and-hole difference at right angle settings, symcenter place at pedestal is provided with a T-slot along its thickness direction, described T-slot is connected with the second riser, there is a T-slot locking screw holes arranging perpendicular to T-slot the side of T-slot, and T-slot locking screw holes is communicated with T-slot, and lock-screw is arranged on and on T-slot locking screw holes, is used for fixing the second riser;
The small end end face of calibration gauge block is that a large end end face of plane is a cambered surface, the cross section of calibration gauge block is a symmetrical polygon, the one end in the cross section of calibration gauge block is a camber line, on camber line arbitrarily the perpendicular bisector of symmetrical 2 lines all perpendicular to the plane of small end end face, the width of calibration gauge block is consistent with two register pin line direction width, a block is equipped with respectively for clamping two register pins in the both sides, large end end of calibration gauge block, two blocks are fixed on calibration gauge block both sides by two socket head cap screws respectively, it is the calibration plane for calibration process alignment supporting screw height that calibration gauge block small end has a bathtub construction, in the middle of calibration gauge block, there is a circular trough, below second riser of circular trough after installation, in calibration process, form the activity space of being convenient to the second riser.
The invention has the beneficial effects as follows: Gas Turbine Power turbine rotor race detector calculates demonstration through a large amount of usage datas that detect, measuring instrument is calibrated rear accuracy of detection and the circle machining precision error accumulation of wheel disc auxiliary base and is less than 0.035mm, to product race radial position degree, actual machining tolerance 0.10mm meets technical requirement position of related features, machine tool feed precision is at 0.05mm, and the on-the-spot accuracy of detection of using of turbine rotor race detector reaches the precision that 0.01mm has reached technological requirement digital display calliper; Detection efficiency is high, detects 76 wheel disc race times to be less than 20 minutes, and the repeatability that detects data is greater than 80%, and measurement data fluctuation is not more than 0.03mm within controlled range; Because dial gauge is not subject to the impact of extraneous moment, during measurement, measuring instrument, only to prolong auxiliary base circle running fix benchmark consistent, and dial gauge measuring point is consistent with race rotation center all the time, makes to detect data true and reliable.
Accompanying drawing explanation
Fig. 1 is detector measuring state front view;
Fig. 2 is the vertical view that detector is equipped with calibration gauge block;
In Fig. 1 and Fig. 2,1 is pedestal, the 2nd, and detector support, the 3rd, supporting screw, the 4th, adjust screw, 5 is 2 register pins, 6 is 2 lock-screws, the 7th, calibration pedestal, the 8th, set nut, the 9th, dial gauge, 10 is second risers, and 11 is 2 pin-and-holes, and 12 is 2 blocks, 2-1 is upper plate, and 2-2 is the first riser, and 3-1 is dial gauge installation screw, 3-2 is locking screw holes, and 3-3 supports screw, and 3-4 adjusts screw;
Fig. 3 is detector supporting structure schematic diagram, and wherein Fig. 3 a is detector support front view; Fig. 3 b is detector support left view; Fig. 3 c is detector support vertical view; Wherein 3-1 is dial gauge installation screw, and 3-2 is locking screw holes, and 3-3 supports screw, and 3-4 adjusts screw;
Fig. 4 is base construction schematic diagram, and wherein Fig. 4 a is pedestal front view; Fig. 4 b is pedestal right view; Fig. 4 c is pedestal vertical view; Wherein 4-1 is T-slot locking screw holes, and 4-2 is T-slot, the 11st, and pin-and-hole;
Fig. 5 is calibrator quantity block structure schematic diagram, and wherein Fig. 5 a is calibration gauge block front view; Fig. 5 b is calibration gauge block right view; Wherein 12 is 2 blocks, and 13 is 4 socket head cap screws;
Fig. 6 is supporting screw front view;
Fig. 7 adjusts screw front view;
Fig. 8 is lock-screw front view;
Fig. 9 is locking nut structure figure, and wherein Fig. 9 a is set nut front view; Fig. 9 b is set nut vertical view;
Figure 10 is register pin front view;
Embodiment
Embodiment one: as shown in Fig. 1～10, a kind of Gas Turbine Power turbine rotor race detector described in present embodiment comprises pedestal 1, detector support 2, dial gauge 9 and calibration gauge block 7;
Detector support 2 support bodys comprise upper plate 2-1, the first riser 2-2, the second riser 10, the first riser 2-1 are at right angles connected with upper plate 2-1 one end end face, the second riser 10 is connected with upper plate 2-1 other end lower surface, two risers in upper plate 2-1 the same side and two risers be arranged in parallel;
Detector support 2 right-hand member cantilever places are vertically provided with one and adjust screw 3-4, adjusting screw 4 is vertically mounted in adjustment screw 3-4, adjust screw 4 and adjust detector support 2 vertical direction height by rotation, detector support 2 middle parts are vertically provided with one and support screw 3-3, supporting screw 3 can be vertically mounted on and be supported in screw 3-3 by set nut 8 lockings after adjusting to arbitrary height, set nut 8 is positioned at upper plate 2-1 top and contacts with upper plate 2-1, supporting screw 3 forms supplemental support point in measuring process for detection of instrument, supporting screw 3 positioning heights are differences in height of parts measurement reference field and supporting screw 3 planes used, the first riser 2-2 lower end level is provided with a dial gauge installation screw 3-1, the first riser 2-2 lower surface is vertically provided with a locking screw holes 3-2, locking screw holes 3-2 is communicated with dial gauge installation screw 3-1, lock-screw 6 is vertically mounted in locking screw holes 3-2, dial gauge 9 is arranged in dial gauge installation screw 3-1 by lock-screw 6 locking levels, dial gauge 9 measuring junctions point to part to be measured,
The small end end face of calibration gauge block 7 is that a large end end face of plane is a cambered surface, the cross section of calibration gauge block 7 is symmetrical polygons, the one end in the cross section of calibration gauge block 7 is a camber line, on camber line arbitrarily the perpendicular bisector of symmetrical 2 lines all perpendicular to the plane of small end end face, the width of calibration gauge block 7 is consistent with two register pins, 5 line direction width, a block 12 is equipped with respectively for clamping two register pins 5 in the both sides, large end end of calibration gauge block 7, two blocks 12 are fixed on calibration gauge block 7 both sides by two socket head cap screws 13 respectively, it is the calibration plane for calibration process alignment supporting screw 3 height that calibration gauge block 7 small ends have a bathtub construction, in the middle of calibration gauge block 7, there is a circular trough, below second riser 10 of circular trough after installation, in calibration process, form the activity space of being convenient to the second riser 10.
Embodiment two: present embodiment is different from embodiment one: pedestal 1 and detector support 2 are to be made by 2Cr13 material; Other step and parameter are identical with embodiment one.
Embodiment three: present embodiment is different from embodiment one or two: calibration gauge block 7 is to be made by Cr2 material; Other step and parameter are identical with embodiment one or two.
Embodiment four: present embodiment is different from one of embodiment one to three: the end face of the screw terminal of supporting screw 3 has one deck bit copper alloy-layer; Other step and parameter are identical with one of embodiment one to three.
Embodiment five: present embodiment is different from one of embodiment one to four: the nail width surface of two lock-screws 6 is printed on annular knurl; Other step and parameter are identical with one of embodiment one to four.
Claims (5)
1. a Gas Turbine Power turbine rotor race detector, is characterized in that: it comprises pedestal (1), detector support (2), dial gauge (9) and calibration gauge block (7);
Detector support (2) support body comprises upper plate (2-1), the first riser (2-2), the second riser (10), the first riser (2-1) is at right angles connected with upper plate (2-1) one end end face, the second riser (10) is connected with upper plate (2-1) other end lower surface, two risers in upper plate (2-1) the same side and two risers be arranged in parallel;
Detector support (2) right-hand member cantilever place is vertically provided with one and adjusts screw (3-4), adjusting screw (4) is vertically mounted in adjustment screw (3-4), adjust screw (4) and adjust segmental support (2) vertical direction height by rotation, detector support (2) middle part is vertically provided with one and supports screw (3-3), supporting screw (3) can be vertically mounted on and be supported in screw (3-3) by set nut (8) locking after adjusting to arbitrary height, set nut (8) is positioned at upper plate (2-1) top and contacts with upper plate (2-1), supporting screw (3) forms supplemental support point in measuring process for detection of instrument, supporting screw (3) positioning height is the difference in height of parts measurement reference field and supporting screw (3) plane used, the first riser (2-2) lower end level is provided with a dial gauge installation screw (3-1), the first riser (2-2) lower surface is vertically provided with a locking screw holes (3-2), locking screw holes (3-2) is communicated with dial gauge installation screw (3-1), lock-screw (6) is vertically mounted in locking screw holes (3-2), dial gauge (9) is arranged in dial gauge installation screw (3-1) by lock-screw (6) locking level, dial gauge (9) measuring junction points to part to be measured,
Pedestal (1) one-piece construction is bad arc-shaped, there is respectively a pin-and-hole (11) at bad arc symmetrical two ends along its thickness direction, two pin-and-holes (11) are a register pin of at right angle setting (5) respectively, symcenter place at pedestal (1) is provided with a T-slot (4-2) along its thickness direction, described T-slot (4-2) is connected with the second riser (10), there is a T-slot locking screw holes (4-1) arranging perpendicular to T-slot (4-2) side of T-slot (4-2), T-slot locking screw holes (4-1) is communicated with T-slot (4-2), lock-screw (6) is arranged on and on T-slot locking screw holes (4-1), is used for fixing the second riser (10),
The small end end face of calibration gauge block (7) is that a large end end face of plane is a cambered surface, the cross section of calibration gauge block (7) is a symmetrical polygon, the one end in the cross section of calibration gauge block (7) is a camber line, on camber line arbitrarily the perpendicular bisector of symmetrical 2 lines all perpendicular to the plane of small end end face, the width of calibration gauge block (7) is consistent with two register pins (5) line direction width, a block (12) is equipped with respectively for clamping two register pins (5) in the both sides, large end end of calibration gauge block (7), two blocks (12) are fixed on calibration gauge block (7) both sides by two socket head cap screws (13) respectively, it is the calibration plane for calibration process alignment supporting screw (3) height that calibration gauge block (7) small end has a bathtub construction, in the middle of calibration gauge block (7), there is a circular trough, second riser (10) below of circular trough after installation, in calibration process, form the activity space of being convenient to the second riser (10).
2. a kind of Gas Turbine Power turbine rotor race detector according to claim 1, is characterized in that: pedestal (1) and detector support (2) are to be made by 2Cr13 material.
3. a kind of Gas Turbine Power turbine rotor race detector according to claim 1, is characterized in that: calibration gauge block (7) is to be made by Cr2 material.
4. a kind of Gas Turbine Power turbine rotor race detector according to claim 1, is characterized in that: the end face of the screw terminal of supporting screw (3) has one deck bit copper alloy-layer.
5. a kind of Gas Turbine Power turbine rotor race detector according to claim 1, is characterized in that: the nail width surface of two lock-screws (6) is printed on annular knurl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310594096.4A CN103673809B (en) | 2013-11-21 | 2013-11-21 | A kind of Gas Turbine Power turbine rotor race detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310594096.4A CN103673809B (en) | 2013-11-21 | 2013-11-21 | A kind of Gas Turbine Power turbine rotor race detector |
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| Publication Number | Publication Date |
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| CN103673809A true CN103673809A (en) | 2014-03-26 |
| CN103673809B CN103673809B (en) | 2016-04-13 |
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| CN201310594096.4A Active CN103673809B (en) | 2013-11-21 | 2013-11-21 | A kind of Gas Turbine Power turbine rotor race detector |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4539755A (en) * | 1984-06-06 | 1985-09-10 | Weimer Daniel V | Turbine compressor clearance indicator device and method of using same |
| US6148532A (en) * | 1998-10-30 | 2000-11-21 | General Electric Company | Flatness gage |
| CN201273802Y (en) * | 2008-09-26 | 2009-07-15 | 上海联合滚动轴承有限公司 | Roller conveyer position measurement apparatus for large pivoting support bearing |
| CN102980464A (en) * | 2012-11-18 | 2013-03-20 | 无锡麦铁精密机械制造有限公司 | Turbine shell location degree detection tool |
| CN203615853U (en) * | 2013-11-21 | 2014-05-28 | 哈尔滨汽轮机厂有限责任公司 | Gas turbine power turbine rotor wheel groove detector |
-
2013
- 2013-11-21 CN CN201310594096.4A patent/CN103673809B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4539755A (en) * | 1984-06-06 | 1985-09-10 | Weimer Daniel V | Turbine compressor clearance indicator device and method of using same |
| US6148532A (en) * | 1998-10-30 | 2000-11-21 | General Electric Company | Flatness gage |
| CN201273802Y (en) * | 2008-09-26 | 2009-07-15 | 上海联合滚动轴承有限公司 | Roller conveyer position measurement apparatus for large pivoting support bearing |
| CN102980464A (en) * | 2012-11-18 | 2013-03-20 | 无锡麦铁精密机械制造有限公司 | Turbine shell location degree detection tool |
| CN203615853U (en) * | 2013-11-21 | 2014-05-28 | 哈尔滨汽轮机厂有限责任公司 | Gas turbine power turbine rotor wheel groove detector |
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| CN103673809B (en) | 2016-04-13 |
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Effective date of registration: 20221220 Address after: 150000 building 3, high tech production base, Nangang District, Harbin City, Heilongjiang Province Patentee after: HARBIN TURBINE Co.,Ltd. Patentee after: HADIAN POWER EQUIPMENT NATIONAL ENGINEERING RESEARCH CENTER CO.,LTD. Address before: 150046 No. three power road 345, Xiangfang District, Heilongjiang, Harbin Patentee before: HARBIN TURBINE Co.,Ltd. |