CN211978760U - Power station steam turbine T type blade root ultrasonic phased array detects scanning device - Google Patents
Power station steam turbine T type blade root ultrasonic phased array detects scanning device Download PDFInfo
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- CN211978760U CN211978760U CN201921723951.6U CN201921723951U CN211978760U CN 211978760 U CN211978760 U CN 211978760U CN 201921723951 U CN201921723951 U CN 201921723951U CN 211978760 U CN211978760 U CN 211978760U
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Abstract
The utility model discloses a power station steam turbine T type blade root supersound phased array detects scanning device, which comprises a rotor, the circumference fixed surface of rotor is connected with the flabellum, the surface of axis of rotation rotates through the bearing and is connected with the supporting disk, be close to the inside on its right side on the supporting disk and seted up the cavity, and the inside of cavity is equipped with moving mechanism, the fixed frame of moving mechanism's top fixedly connected with, the inside of fixed frame is equipped with swing mechanism, swing mechanism's top fixedly connected with supersound phased array probe, the right side fixedly connected with encoder of fixed frame inner wall, and the encoder is connected with supersound phased array probe electricity. The utility model discloses an above-mentioned isotructure's cooperation, it is lower to have solved current ultrasonic testing efficiency, and is difficult to carry out ultrasonic testing to the flabellum thoroughly comprehensively, and is difficult for carrying out ultrasonic testing to the flabellum with different angles, leads to the not accurate problem of testing result inadequately.
Description
Technical Field
The utility model relates to a turbine blade ultrasonic testing technical field specifically is a power station steam turbine T type blade root supersound phased array detects scanning device.
Background
The steam turbine is a main component of a conventional island of a nuclear power station, a component with the highest operation requirement and the largest workload in the steam turbine is a steam turbine rotor, seven stages of blades are arranged on the rotor, the number of the blades is thousands, each blade rotates at a high speed in an extremely severe environment, and the root of each blade bears various stresses of tens of tons, so that cracks at the root of each blade are easily generated in the operation process, the integrity of the structure of each steam turbine blade is a key factor related to whether the steam turbine can safely and stably operate, the space structure is limited by a detection space and the structure of each blade is complex, and the conventional nondestructive detection method used in the service process at present is a manual ultrasonic and penetration detection method. Because the existing ultrasonic detection efficiency is low, the ultrasonic detection is difficult to be carried out on the fan blades comprehensively and thoroughly, and the ultrasonic detection is difficult to be carried out on the fan blades at different angles, the detection result is not accurate enough, and therefore improvement is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a power station steam turbine T type blade root supersound phased array detects sweeps and looks into device possesses supersound phased array probe and can carry out the horizontal hunting, has enlarged the detection range to the flabellum, and supersound phased array probe can carry out ultrasonic testing to the flabellum with the angle of difference simultaneously in the wobbling for to the more comprehensive thorough advantage of detection of flabellum, the problem of proposing in the background art has been solved.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a power station steam turbine T type blade root supersound phased array detects scanning device, includes the rotor, the circumference fixed surface of rotor is connected with the flabellum, and the lower fixed surface of rotor is connected with the axis of rotation, the surface of axis of rotation is rotated through the bearing and is connected with the supporting disk, be close to the inside on its right side on the supporting disk and seted up the cavity, and the inside of cavity is equipped with moving mechanism, the fixed frame of top fixedly connected with of moving mechanism, the inside of fixed frame is equipped with swing mechanism, swing mechanism's top fixedly connected with supersound phased array probe, the right side fixedly connected with encoder of fixed frame inner wall, and the encoder is connected with supersound phased.
Preferably, the moving mechanism comprises a first driving machine, the first driving machine is fixedly mounted on the right side of the supporting plate through a supporting frame, a screw rod is rotatably connected to the left and right sides of the inner wall of the cavity through a bearing, one end of the screw rod, close to the first driving machine, is fixedly connected with the output end of the first driving machine, a moving block is in threaded connection with the surface of the screw rod, a through groove for the moving block to move is formed in the upper surface of the supporting plate, and the top end of the moving block is fixedly connected with the bottom end of.
Preferably, swing mechanism includes the carousel, the rear side fixed mounting who is close to its top inner wall on the fixed frame has driving machine two, the output of driving machine two and the inner wall fixed connection of carousel, the front side that is close to the edge on the carousel articulates there is the connecting rod, the rear side that is close to its bottom inner wall on the fixed frame is connected with the crank through the bearing rotation, the bottom and the articulate top of connecting rod, the marginal fixedly connected with pendulum rod that is close to its top on the crank, the top of pendulum rod and the bottom fixed connection of supersound phased array probe.
Preferably, the top of the fixed frame is provided with a moving groove for the swing rod to swing left and right.
Preferably, the turntable and the crank are located on the same vertical center line.
Compared with the prior art, the beneficial effects of the utility model are that: through the second driving machine, the carousel, the connecting rod, the cooperation of crank and pendulum rod, make the supersound phased array probe can carry out the horizontal hunting, thereby enlarged the detection range to the flabellum, supersound phased array probe can carry out the supersound to the flabellum with the angle of difference in the wobbling simultaneously and detect, make the detection to the flabellum more comprehensive thoroughly, and through the first driving machine, the screw rod, the cooperation of movable block, make fixed frame remove about can going on, the detection range of supersound phased array probe to the flabellum has further been improved, the accuracy of testing result has been improved.
Drawings
FIG. 1 is a front sectional view of the structure of the present invention;
FIG. 2 is an enlarged sectional view of the fixing frame of the present invention;
fig. 3 is a side sectional view of the driving machine of the present invention.
In the figure: 1-rotor, 2-fan blade, 3-supporting disk, 4-moving mechanism, 5-fixing frame, 6-swinging mechanism, 7-ultrasonic phased array probe, 8-encoder, 9-driving machine I, 10-screw, 11-moving block, 12-rotating disk, 13-driving machine II, 14-connecting rod, 15-crank, 16-oscillating bar and 17-moving groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a power station steam turbine T type blade root supersound phased array detects scanning device, includes rotor 1, and the circumference fixed surface of rotor 1 is connected with flabellum 2, and the lower fixed surface of rotor 1 is connected with the axis of rotation, and the surface of axis of rotation is rotated through the bearing and is connected with supporting disk 3, is close to the inside on its right side on supporting disk 3 and has offered the cavity, and the inside of cavity is equipped with moving mechanism 4.
Specifically, moving mechanism 4 includes driving machine 9, driving machine 9 passes through support frame fixed mounting on the right side of supporting disk 3, and all be connected with screw rod 10 through the bearing rotation about the cavity inner wall, the one end that is close to driving machine 9 of screw rod 10 and the output fixed connection of driving machine 9, the surperficial threaded connection of screw rod 10 has movable block 11, and the logical groove that supplies movable block 11 to remove is seted up to the upper surface of supporting disk 3, the top of movable block 11 and the bottom fixed connection of fixed frame 5, driving machine 9 drives screw rod 10 and rotates, because screw rod 10 and movable block 11 threaded connection, and the rotation to movable block 11 has carried out the restriction through leading to the groove, make movable block 11 can drive fixed frame 5 and remove about, the detection range of ultrasonic phased array probe 7 to flabellum 2 has further been improved, the accuracy of testing result.
The top of the moving mechanism 4 is fixedly connected with a fixed frame 5, and a swing mechanism 6 is arranged inside the fixed frame 5.
Specifically, the swing mechanism 6 includes a rotary table 12, a second driving machine 13 is fixedly mounted on the rear side of the fixed frame 5 close to the inner wall of the top of the fixed frame, the output end of the second driving machine 13 is fixedly connected with the inner wall of the rotary table 12, a connecting rod 14 is hinged on the front side of the rotary table 12 close to the edge, a crank 15 is rotatably connected on the rear side of the fixed frame 5 close to the inner wall of the bottom of the fixed frame through a bearing, the bottom end of the connecting rod 14 is hinged with the top end of the crank 15, a swing rod 16 is fixedly connected on the edge of the crank 15 close to the top end of the crank, the top end of the swing rod 16 is fixedly connected with the bottom end of the ultrasonic phased array probe 7, the second driving machine 13 drives the rotary table 12 to rotate, the rotary table 12 rotates for one circle under the action of the connecting rod 14, so that the crank 15 swings left and right once, the swing rod 16 and the ultrasonic phased array, the detection of the fan blades 2 is more comprehensive and thorough.
Further, the top of the fixed frame 5 is provided with a moving groove 17 for the swing rod 16 to swing left and right, the moving groove 17 enables the swing rod 16 to swing left and right, and the movement track of the swing rod 16 is limited, so that the swing rod 16 can swing left and right more stably and smoothly.
Further, the rotary disc 12 and the crank 15 are located on the same vertical center line, so that the swing range of the swing rod 16 is wider.
The top end of the swing mechanism 6 is fixedly connected with an ultrasonic phased array probe 7, the ultrasonic phased array probe 7 transmits ultrasonic waves to the surface of the fan blade 2, if the surface of the fan blade 2 has no cracks or fractures, the ultrasonic waves penetrate through the surface of the fan blade 2, and the surface of the fan blade 2 has no echo; when crack or fracture appear on the surface of flabellum 2, the surface echo of flabellum 2 is stronger, therefore, can judge whether crack or fracture appear in flabellum 2 through the echo image of flabellum 2 on the ultrasonic phased array detector, the right side fixedly connected with encoder 8 of fixed frame 5 inner wall, and encoder 8 is connected with ultrasonic phased array probe 7 electricity, ultrasonic phased array probe 7 feeds back the signal that detects to encoder 8, encoder 8 is through on the display in the code processing back signal transmission control room, the operating personnel of being convenient for watch.
The working principle is as follows: when the power station steam turbine T-shaped blade root ultrasonic phased array detection scanning device is used and needs to perform ultrasonic detection on a fan blade 2, a first driving machine 9 and a second driving machine 13 are started, the second driving machine 13 drives a rotary table 12 to rotate, the rotary table 12 rotates for a circle under the action of a connecting rod 14, so that a crank 15 swings left and right once, a swing rod 16 and an ultrasonic phased array probe 7 are driven to swing left and right, the detection range of the fan blade 2 is expanded, the ultrasonic phased array probe 7 feeds detected signals back to an encoder 8, the encoder 8 transmits the signals to a display in a control room after encoding processing, operators can conveniently watch the signals, meanwhile, the ultrasonic phased array probe 7 can perform ultrasonic detection on the fan blade 2 at different angles while swinging, and the detection on the fan blade 2 is more comprehensive and thorough; the first driving machine 9 drives the screw rod 10 to rotate, and the screw rod 10 is in threaded connection with the moving block 11, and the rotation of the moving block 11 is limited through the through groove, so that the moving block 11 can drive the fixing frame 5 to move left and right, the detection range of the ultrasonic phased array probe 7 on the fan blades 2 is further improved, and the accuracy of a detection result is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a power station steam turbine T type blade root ultrasonic phased array detects scanning device, includes rotor (1), the circumference fixed surface of rotor (1) is connected with flabellum (2), and the lower fixed surface of rotor (1) is connected with axis of rotation, its characterized in that: the surface of axis of rotation rotates through the bearing and is connected with supporting disk (3), the cavity has been seted up to the inside that is close to its right side on supporting disk (3), and the inside of cavity is equipped with moving mechanism (4), the fixed frame (5) of top fixedly connected with of moving mechanism (4), the inside of fixed frame (5) is equipped with swing mechanism (6), the top fixedly connected with supersound phased array probe (7) of swing mechanism (6), the right side fixedly connected with encoder (8) of fixed frame (5) inner wall, and encoder (8) are connected with supersound phased array probe (7) electricity.
2. The power station steam turbine T-blade root ultrasonic phased array detection scanning device of claim 1, characterized in that: moving mechanism (4) are including driving machine (9), driving machine (9) are through support frame fixed mounting on the right side of supporting disk (3), and all rotate through the bearing about the cavity inner wall and be connected with screw rod (10), the one end that is close to driving machine (9) of screw rod (10) and the output fixed connection of driving machine (9), the surperficial threaded connection of screw rod (10) has movable block (11), and the upper surface of supporting disk (3) sets up the logical groove that supplies movable block (11) to remove, the top of movable block (11) and the bottom fixed connection of fixed frame (5).
3. The power station steam turbine T-blade root ultrasonic phased array detection scanning device of claim 1, characterized in that: swing mechanism (6) are including carousel (12), the rear side fixed mounting who is close to its top inner wall on fixed frame (5) has driving machine two (13), the output of driving machine two (13) and the inner wall fixed connection of carousel (12), the front side that is close to the edge on carousel (12) articulates there is connecting rod (14), the rear side that is close to its bottom inner wall on fixed frame (5) is connected with crank (15) through bearing rotation, the bottom of connecting rod (14) is articulated with the top of crank (15), the edge fixedly connected with pendulum rod (16) that is close to its top on crank (15), the top of pendulum rod (16) and the bottom fixed connection of ultrasonic phased array probe (7).
4. The power station steam turbine T-blade root ultrasonic phased array detection scanning device of claim 3, characterized in that: the top of the fixed frame (5) is provided with a movable groove (17) for the swing rod (16) to swing left and right.
5. The power station steam turbine T-blade root ultrasonic phased array detection scanning device of claim 3, characterized in that: the rotary disc (12) and the crank (15) are positioned on the same vertical central line.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921723951.6U CN211978760U (en) | 2019-10-15 | 2019-10-15 | Power station steam turbine T type blade root ultrasonic phased array detects scanning device |
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| CN201921723951.6U CN211978760U (en) | 2019-10-15 | 2019-10-15 | Power station steam turbine T type blade root ultrasonic phased array detects scanning device |
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| CN211978760U true CN211978760U (en) | 2020-11-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113219059A (en) * | 2021-05-18 | 2021-08-06 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Power station steam turbine thick-wall partition plate phased array detection process method |
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2019
- 2019-10-15 CN CN201921723951.6U patent/CN211978760U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113219059A (en) * | 2021-05-18 | 2021-08-06 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Power station steam turbine thick-wall partition plate phased array detection process method |
| CN113219059B (en) * | 2021-05-18 | 2023-04-07 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Power station steam turbine thick-wall partition plate phased array detection process method |
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