CN204462084U - A kind of welded disc turbine rotor phased-array ultrasonic Non-Destructive Testing fixture - Google Patents

A kind of welded disc turbine rotor phased-array ultrasonic Non-Destructive Testing fixture Download PDF

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Publication number
CN204462084U
CN204462084U CN201520011090.4U CN201520011090U CN204462084U CN 204462084 U CN204462084 U CN 204462084U CN 201520011090 U CN201520011090 U CN 201520011090U CN 204462084 U CN204462084 U CN 204462084U
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China
Prior art keywords
turbine rotor
welded disc
disc turbine
voussoir
travelling carriage
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CN201520011090.4U
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Chinese (zh)
Inventor
栗园园
李永龙
肖唐杰
吴建东
莫堃
董娜
张帆
王重山
王仕洋
黄巍
王佰昱
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Dongfang Electric Co., Ltd.
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Dongfang Electric Corp
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Abstract

The utility model belongs to measuring robots field, particularly one and is applicable to steam turbine welded disc turbine rotor phased-array ultrasonic Non-Destructive Testing fixture.The utility model overcomes in existing scheme not to be had to locate, the defect of drive unit and utilize vision and thickness measuring method to detect the technical matters of the deficiency of welded disc turbine rotor weld seam.Described system primary attachment formula mobile platform, positioning system and fixture can be driven to form.The utility model has the advantage of and rely on the rotary freedom of clamp end and spring force to make voussoir automatically adapt to welded disc turbine rotor surface angle, and fit tightly with it; Realize the transverse shifting of voussoir by drive motor and gear train, make voussoir butt welding switch through sub-surface diverse location and detect; Under positioning system effect, realize the axial location between welded disc turbine rotor, thus make voussoir can aim at weld seam exactly.

Description

A kind of welded disc turbine rotor phased-array ultrasonic Non-Destructive Testing fixture
Technical field
The utility model belongs to measuring robots field, particularly a kind of welded disc turbine rotor phased-array ultrasonic Non-Destructive Testing fixture.
Background technology
Rotor is the core component of steam turbine, and its version is a lot, as integral rotor, rotor bushing, welded disc turbine rotor and combined rotor etc.Compared with conventional fired power generating unit turbine rotor, steam turbine for nuclear power station rotor volume and weight are all large, and requirement on machining accuracy is high, generally all adopts welded disc turbine rotor.
For ensureing the quality of welded disc turbine rotor, in process processed, prepare after, the phased-array ultrasonic that all needs to carry out weld seam in in-service process detects, phased array probe and voussoir are comparatively large, and needs are at weld seam diverse location, adopt different voussoirs to detect.Particularly after preparation completes and in in-service process, because rotor is equipped with blade, working space becomes extremely narrow and small.
At present, for phased array ultrasonic detection, there is ripe fixture and detection system, but due to the special circumstances of welded disc turbine rotor application scenario, existing scheme all cannot in enterprising the enforcements use of welded disc turbine rotor.
If number of patent application is 201010248503.2, the date of application is on August 14th, 2010, the utility model patent of " ultrasonic inspecting and scanning device of welding line " by name; And application number is 201310685223.1, date of application is on Dec 13rd, 2013, " thick-walled takeover welding line ultrasonic pick-up unit " by name, these two schemes all can clamp ultrasonic probe and detect, but two schemes all do not have Design Orientation device, in the detection of welded disc turbine rotor, the position of scanning can not be fixed, make whole scanning data unreliable; Secondly two sets of plan is all without driving mechanism, can not carry out self-verifying on workpiece.Based on above 2 points, two schemes can not be applied to welded disc turbine rotor occasion.
And for example number of patent application is 201210192602.2, date of application is on June 12nd, 2012, the utility model patent of " weld seam intelligent-tracking Ultrasonic Detection robot and software analysis system thereof " by name, this utility model describes a kind of Ultrasonic Detection robot positioned according to vision sensor and thickness measuring ultrasonic probe, due to welded disc turbine rotor weld seam processed after, cannot be identified by vision sensor, and welded disc turbine rotor thickness immobilizes, so the method for vision and thickness measuring cannot use in the detection of welded disc turbine rotor, be not suitable for the use of welded disc turbine rotor occasion.
Utility model content
Do not have to locate to overcome in background technology, the defect of drive unit and utilize vision and thickness measuring method to detect the deficiency of welded disc turbine rotor weld seam, the utility model spy proposes a kind of novel welded disc turbine rotor phased-array ultrasonic Non-Destructive Testing fixture.
A kind of welded disc turbine rotor phased-array ultrasonic Non-Destructive Testing fixture described in the utility model, described fixture comprises absorption type mobile platform (1), positioning system (2) and can drive fixture (3); Described absorption type mobile platform 1 is adsorbed on welded disc turbine rotor 4 surface, and can be free to slide along welded disc turbine rotor 4 circumferencial direction; Described positioning system (2) is fixed on absorption type mobile platform (1), and contacts with welded disc turbine rotor (4) both sides side wall surface, realizes axial location; Described driven fixture (3) is fixed on absorption type mobile platform (1), and clamps phased array detection voussoir (5), and itself and welded disc turbine rotor (4) surface contact are detected.
Further, described absorption type mobile platform (1) comprises bracing frame (6), scroll wheel (7), slide block (8), magnet (9) and rotary encoder (10); Scroll wheel (7) and slide block (8) are separately fixed at bracing frame (6) bottom, during work and welded disc turbine rotor (4) surface contact, absorption type mobile platform (1) can be moved along welded disc turbine rotor (4) circumferencial direction; Magnet (9) is fixed on bracing frame (6) bottom and maintains a certain distance with welded disc turbine rotor (4), and make absorption type mobile platform (1) be adsorbed on welded disc turbine rotor (4) surface, described distance is 1 ~ 5mm; Rotary encoder (10) is connected with scroll wheel (7), detects the rotating cycle of scroll wheel (7), calculates and draw the relative position of absorption type mobile platform (1) and welded disc turbine rotor (4) according to rotating cycle.
Further, described positioning system (2) comprises fixed support bar (11), elastic supporting bar (12), axle sleeve (13), linear bearing (14), set collar (15), ball (16), Compress Spring (17) and handle (18); Axle sleeve (13), set collar (15) and linear bearing (14) are fixed on the bracing frame (6) of absorption type mobile platform (1), and axle sleeve (13) and set collar (15) are coaxially installed, linear bearing (14) and axle sleeve (13) parallel installation; Fixed support bar (11) is arranged in axle sleeve (13) and set collar (15), and fixed support bar (11) can slide axially along axle sleeve (13), to regulate orientation distance; Set collar (15) support bar (11) that can be locked at an arbitrary position slides to stop it, locking mode comprise hold tightly, screw holds out against; Ball (16) is arranged on the end of fixed support bar (11) and elastic supporting bar (12), in work with the both sides sidewall contact of welded disc turbine rotor (4) and relative its roll; Compress Spring (17) is arranged between linear bearing (14) and elastic supporting bar (12), to make the ball (16) of elastic supporting bar (12) end hold out against both sides sidewall, thus realizes axial location.
Further, the described fixture (3) that drives comprises firm banking (19), horizontal travelling carriage (20), vertically travelling carriage (21), voussoir holding frame (22), drive motor (23), slide mechanism (24), gear train (25), guiding mechanism (26) and Compress Spring (27); Firm banking (19) is arranged on the bracing frame (6) of absorption type mobile platform (1); Slide mechanism (24) is arranged between horizontal travelling carriage (20) and firm banking (19), make horizontal travelling carriage (20) can with firm banking (19) relative sliding; Drive motor (23) is arranged on horizontal travelling carriage (20), gear train (25) connects drive motor (23) output shaft and firm banking (19), realizes horizontal travelling carriage (20) laterally slide with the relative of firm banking (19) by drive motor (23) and the effect of gear train (25); Guiding mechanism (26) connects horizontal travelling carriage (20) and vertical travelling carriage (21), makes both relatively slide up and down; Voussoir retainer (22) is connected with vertical travelling carriage (21) by articulated structure, and can rotate corresponding thereto; Compress Spring (27) is arranged between horizontal travelling carriage (20) and vertical travelling carriage (21); Voussoir holding frame (22) clamping voussoir, make phased array detect voussoir (5) by the effect of Compress Spring (27) and compress welded disc turbine rotor (4) surface, by the rotational freedom between vertical travelling carriage (21) and voussoir holding frame (22) make voussoir and welded disc turbine rotor surface bonded to each other, make voussoir realize the detection of horizontal diverse location by the driving of drive motor.
Further, described slide mechanism (24) is sliding-rail sliding or guide pillar guide pin bushing.
Welded disc turbine rotor phased-array ultrasonic Non-Destructive Testing fixture described in the utility model, its feature is:
Described welded disc turbine rotor phased-array ultrasonic Non-Destructive Testing fixture, it act as clamping phased-array ultrasonic Non-Destructive Testing voussoir and probe, and rely on the rotary freedom of clamp end and spring force to make voussoir automatically adapt to welded disc turbine rotor surface angle, and fit tightly with it;
Described welded disc turbine rotor phased-array ultrasonic Non-Destructive Testing fixture, realizes the transverse shifting of voussoir by drive motor and gear train, make voussoir butt welding switch through sub-surface diverse location and detect.
Described welded disc turbine rotor phased-array ultrasonic Non-Destructive Testing fixture, can realize the axial location between welded disc turbine rotor, thus make voussoir can aim at weld seam exactly under positioning system effect.
Accompanying drawing explanation
The welded disc turbine rotor phased-array ultrasonic Non-Destructive Testing fixture front elevation of Fig. 1 the utility model design.
Wherein, 1 is absorption type mobile platform, and 2 is positioning systems, and 3 is to drive fixture, and 4 is welded disc turbine rotors, and 5 is that phased array detects voussoir
The welded disc turbine rotor phased-array ultrasonic Non-Destructive Testing fixture vertical view of Fig. 2 the utility model design.
Wherein, 1 is absorption type mobile platform, and 2 is positioning systems, and 3 is to drive fixture, and 4 is welded disc turbine rotors
The absorption type mobile platform of Fig. 3 the utility model design.
Wherein, 6 is bracing frames, and 7 is scroll wheels, and 8 is slide blocks, and 9 is magnet, and 10 is rotary encoders
The positioning system of Fig. 4 the utility model design.
Wherein, 11 is fixed support bars, and 12 is elastic supporting bars, and 13 is axle sleeves, and 14 is linear bearings, and 15 is set collars, and 16 is balls, and 17 is Compress Springs, and 18 is handles
The driven fixture front elevation of Fig. 5 the utility model design.
Wherein, 19 is firm bankings, and 20 is horizontal travelling carriages, and 21 is vertical travelling carriages, and 22 is voussoir holding frames, and 23 is drive motor, and 24 is slide mechanisms, and 25 is gear trains, and 26 is guiding mechanisms, and 27 is Compress Springs
The driven chuck side view of Fig. 6 the utility model design.
Wherein, 19 is firm bankings, and 20 is horizontal travelling carriages, and 21 is vertical travelling carriages, and 22 is voussoir holding frames, and 23 is drive motor, and 24 is slide mechanisms, and 25 is gear trains, and 26 is guiding mechanisms, and 27 is Compress Springs.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, welded disc turbine rotor phased-array ultrasonic Non-Destructive Testing fixture is by absorption type mobile platform 1, positioning system 2 with fixture 3 can be driven to form.Described absorption type mobile platform 1 is adsorbed on welded disc turbine rotor 4 surface, and can be free to slide along welded disc turbine rotor 4 circumferencial direction; Described positioning system 2 is fixed on absorption type mobile platform 1, and contacts with welded disc turbine rotor 4 two side walls, realizes axial location; Described driven fixture 3 is fixed on absorption type mobile platform 1, and clamps phased array detection voussoir 5, and itself and welded disc turbine rotor 4 surface contact are detected.
As shown in Figure 3, absorption type mobile platform 1 is made up of bracing frame 6, scroll wheel 7, slide block 8, magnet 9 and rotary encoder 10.Scroll wheel 7 and slide block 8 are separately fixed at bottom bracing frame 6, during work and welded disc turbine rotor 4 surface contact, thus absorption type mobile platform 1 can be moved along welded disc turbine rotor 4 circumferencial direction; Magnet 9 to be fixed on bottom bracing frame 6 and to maintain a certain distance with welded disc turbine rotor 4, thus makes absorption type mobile platform 1 be adsorbed on welded disc turbine rotor 4 surface; Rotary encoder 10 is connected with scroll wheel 7, detects the rotating cycle of scroll wheel 7, thus draws the relative motion of absorption type mobile platform 1 and welded disc turbine rotor 4.
As shown in Figure 4, described positioning system 2 is made up of fixed support bar 11, elastic supporting bar 12, axle sleeve 13, linear bearing 14, set collar 15, ball 16, Compress Spring 17 and handle 18.Two axle sleeves, 13, two set collars 15 and two linear bearings 14 are separately fixed on the bracing frame 6 of absorption type mobile platform 1, each axle sleeve 13 and each set collar 15 groups to and be coaxially arranged on the two ends of bracing frame 6, two linear bearings 14 are parallel with two axle sleeves 13 respectively and be arranged on the two ends of bracing frame 6; Fixed support bar 11 is arranged on axle sleeve 13 and set collar 15, and fixed support bar 11 can slide axially along axle sleeve 13, to regulate orientation distance; Set collar 15 support bar 11 that can be locked at an arbitrary position slides to stop it, locking mode comprise hold tightly, screw holds out against; Ball 16 is arranged on fixed support bar 11 and the end of elastic supporting bar 12, contacts also relative its roll in work with the wall of welded disc turbine rotor 4; Compress Spring 17 is arranged between linear bearing 14 and elastic supporting bar 12, to make the ball 16 of elastic supporting bar 12 end hold out against wall, thus realizes axial location.
As shown in Figure 5,6, fixture 3 can be driven by firm banking 19, horizontal travelling carriage 20, vertically travelling carriage 21, voussoir holding frame 22, drive motor 23, slide mechanism 24, gear train 25, guiding mechanism 26 and Compress Spring 27 form.Firm banking 19 is arranged on the bracing frame 6 of absorption type mobile platform 1, and connected mode is that bolt connects; Horizontal travelling carriage 20 is connected with firm banking 19 by slide mechanism 24, thus can relatively it laterally slide, wherein the slide rail of slide mechanism 24 and firm banking 19 fixing, slide block and horizontal travelling carriage 24 fixing; Drive motor 23 is arranged on horizontal travelling carriage 20, gear train 25 is pinion and rack, its middle gear is arranged on the output shaft of drive motor 23, tooth bar is arranged on firm banking 19, realizes horizontal travelling carriage 20 laterally slide with the relative of firm banking 19 by drive motor 23 and the effect of gear train 25; Guiding mechanism 26 is guide pillar guide sleeve mechanism, and wherein guide pin bushing and horizontal travelling carriage 20 are fixed, and guide pillar and vertical travelling carriage 21 are fixed, and horizontal travelling carriage 20 can be slided up and down relatively with vertical travelling carriage 21; Voussoir retainer 22 is connected with vertical travelling carriage 21 by articulated structure, and can rotate corresponding thereto, and articulated structure is specially cylindrical pin structure; Compress Spring 27 is arranged between horizontal travelling carriage 20 and vertical travelling carriage 21; Voussoir holding frame 22 clamps phased array voussoir 5, phased array voussoir 5 is made to compress welded disc turbine rotor 4 surface by the effect of Compress Spring 27, make phased array voussoir 5 bonded to each other with welded disc turbine rotor 4 surface by the rotational freedom between vertical travelling carriage 21 and voussoir holding frame 20, make phased array voussoir 5 realize the detection of horizontal diverse location by the driving of drive motor 23.
Description for the understanding of embodiment be only for help understand the utility model, instead of be used for restriction of the present utility model.Those skilled in the art all can utilize thought of the present utility model to carry out some and change and change, as long as its technological means does not depart from thought of the present utility model and main points, still within protection domain of the present utility model.

Claims (5)

1. a welded disc turbine rotor phased-array ultrasonic Non-Destructive Testing fixture, is characterized in that: described fixture comprises absorption type mobile platform (1), positioning system (2) and can drive fixture (3); Described absorption type mobile platform (1) is adsorbed on welded disc turbine rotor (4) surface, and can be free to slide along welded disc turbine rotor (4) circumferencial direction; Described positioning system (2) is fixed on absorption type mobile platform (1), and contacts with welded disc turbine rotor (4) both sides side wall surface, realizes axial location; Described driven fixture (3) is fixed on absorption type mobile platform (1), and clamps phased array detection voussoir (5), and itself and welded disc turbine rotor (4) surface contact are detected.
2. a kind of welded disc turbine rotor phased-array ultrasonic Non-Destructive Testing fixture according to claim 1, is characterized in that: described absorption type mobile platform (1) comprises bracing frame (6), scroll wheel (7), slide block (8), magnet (9) and rotary encoder (10); Scroll wheel (7) and slide block (8) are separately fixed at bracing frame (6) bottom, during work and welded disc turbine rotor (4) surface contact, absorption type mobile platform (1) can be moved along welded disc turbine rotor (4) circumferencial direction; Magnet (9) is fixed on bracing frame (6) bottom and maintains a certain distance with welded disc turbine rotor (4), makes absorption type mobile platform (1) be adsorbed on welded disc turbine rotor (4) surface; Rotary encoder (10) is connected with scroll wheel (7), detects the rotating cycle of scroll wheel (7).
3. a kind of welded disc turbine rotor phased-array ultrasonic Non-Destructive Testing fixture according to claim 1, is characterized in that: described positioning system (2) comprises fixed support bar (11), elastic supporting bar (12), axle sleeve (13), linear bearing (14), set collar (15), ball (16), Compress Spring (17) and handle (18); Axle sleeve (13), set collar (15) and linear bearing (14) are fixed on the bracing frame (6) of absorption type mobile platform (1), and axle sleeve (13) and set collar (15) are coaxially installed, linear bearing (14) and axle sleeve (13) parallel installation; Fixed support bar (11) is arranged in axle sleeve (13) and set collar (15), and fixed support bar (11) can slide axially along axle sleeve (13), to regulate orientation distance; Set collar (15) support bar (11) that can be locked at an arbitrary position slides to stop it, locking mode comprise hold tightly, screw holds out against; Ball (16) is arranged on the end of fixed support bar (11) and elastic supporting bar (12), in work with the both sides sidewall contact of welded disc turbine rotor (4) and relative its roll; Compress Spring (17) is arranged between linear bearing (14) and elastic supporting bar (12), to make the ball (16) of elastic supporting bar (12) end hold out against both sides sidewall, thus realizes axial location.
4. a kind of welded disc turbine rotor phased-array ultrasonic Non-Destructive Testing fixture according to claim 1, is characterized in that: the described fixture (3) that drives comprises firm banking (19), horizontal travelling carriage (20), vertically travelling carriage (21), voussoir holding frame (22), drive motor (23), slide mechanism (24), gear train (25), guiding mechanism (26) and Compress Spring (27); Firm banking (19) is arranged on the bracing frame (6) of absorption type mobile platform (1); Slide mechanism (24) is arranged between horizontal travelling carriage (20) and firm banking (19), make horizontal travelling carriage (20) can with firm banking (19) relative sliding; Drive motor (23) is arranged on horizontal travelling carriage (20), gear train (25) connects drive motor (23) output shaft and firm banking (19), realizes horizontal travelling carriage (20) laterally slide with the relative of firm banking (19) by drive motor (23) and the effect of gear train (25); Guiding mechanism (26) connects horizontal travelling carriage (20) and vertical travelling carriage (21), makes both relatively slide up and down; Voussoir retainer (22) is connected with vertical travelling carriage (21) by articulated structure, and can rotate corresponding thereto; Compress Spring (27) is arranged between horizontal travelling carriage (20) and vertical travelling carriage (21); Voussoir holding frame (22) clamping voussoir, make phased array detect voussoir (5) by the effect of Compress Spring (27) and compress welded disc turbine rotor (4) surface, make phased array detect voussoir (5) by the rotational freedom between vertical travelling carriage (21) and voussoir holding frame (22) bonded to each other with welded disc turbine rotor (4) surface, make phased array detection voussoir (5) realize the detection of horizontal diverse location by the driving of drive motor (23).
5. a kind of welded disc turbine rotor phased-array ultrasonic Non-Destructive Testing fixture according to claim 4, is characterized in that: described slide mechanism (24) is sliding-rail sliding or guide pillar guide pin bushing.
CN201520011090.4U 2015-01-08 2015-01-08 A kind of welded disc turbine rotor phased-array ultrasonic Non-Destructive Testing fixture Active CN204462084U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104597134A (en) * 2015-01-08 2015-05-06 中国东方电气集团有限公司 Phased-array ultrasonic nondestructive detection fixture of welding rotor
CN106501467A (en) * 2016-12-29 2017-03-15 核动力运行研究所 A kind of probe scanning instrument suitable for different structure welding inspection
WO2017177408A1 (en) * 2016-04-14 2017-10-19 Abb Technology Ltd Gripping head, gripping system and method thereof
CN105891335B (en) * 2015-10-09 2018-08-28 中国石油天然气第一建设有限公司 A kind of adjustable phased array pipeline girth weld detection device
CN110031550A (en) * 2019-05-17 2019-07-19 中国石油天然气第一建设有限公司 A kind of type hand inclined pipe fillet weld phased array scanning equipment
CN110031549A (en) * 2019-05-17 2019-07-19 中国石油天然气第一建设有限公司 It is a kind of can two-way scanning type hand inclined pipe fillet weld phased array scanning equipment

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104597134A (en) * 2015-01-08 2015-05-06 中国东方电气集团有限公司 Phased-array ultrasonic nondestructive detection fixture of welding rotor
CN104597134B (en) * 2015-01-08 2017-05-31 中国东方电气集团有限公司 A kind of welded disc turbine rotor phased-array ultrasonic Non-Destructive Testing fixture
CN105891335B (en) * 2015-10-09 2018-08-28 中国石油天然气第一建设有限公司 A kind of adjustable phased array pipeline girth weld detection device
CN105891334B (en) * 2015-10-09 2018-08-28 中国石油天然气第一建设有限公司 The ultrasonic phase array pipeline girth weld testing agency that can steadily move
WO2017177408A1 (en) * 2016-04-14 2017-10-19 Abb Technology Ltd Gripping head, gripping system and method thereof
CN109070483A (en) * 2016-04-14 2018-12-21 Abb瑞士股份有限公司 Clamping head, grasping system and its method
CN109070483B (en) * 2016-04-14 2021-04-20 Abb瑞士股份有限公司 Clamping head, clamping system and method thereof
CN106501467A (en) * 2016-12-29 2017-03-15 核动力运行研究所 A kind of probe scanning instrument suitable for different structure welding inspection
CN106501467B (en) * 2016-12-29 2019-02-26 核动力运行研究所 A kind of probe scanning tool suitable for different structure welding inspection
CN110031550A (en) * 2019-05-17 2019-07-19 中国石油天然气第一建设有限公司 A kind of type hand inclined pipe fillet weld phased array scanning equipment
CN110031549A (en) * 2019-05-17 2019-07-19 中国石油天然气第一建设有限公司 It is a kind of can two-way scanning type hand inclined pipe fillet weld phased array scanning equipment

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Effective date of registration: 20180502

Address after: 610000 18 West core road, hi-tech West District, Chengdu, Sichuan

Patentee after: Dongfang Electric Co., Ltd.

Address before: 610036 Shu Han Road, Jinniu District, Chengdu, Sichuan Province, No. 333

Patentee before: Dongfang Electric Corporation

TR01 Transfer of patent right