CN203791858U - Device for automatically detecting weld joint of low-pressure welding rotor of steam turbine for nuclear power station - Google Patents
Device for automatically detecting weld joint of low-pressure welding rotor of steam turbine for nuclear power station Download PDFInfo
- Publication number
- CN203791858U CN203791858U CN201320888920.2U CN201320888920U CN203791858U CN 203791858 U CN203791858 U CN 203791858U CN 201320888920 U CN201320888920 U CN 201320888920U CN 203791858 U CN203791858 U CN 203791858U
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- assembly
- guide
- circumferential
- steam turbine
- pressure welding
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- 238000003466 welding Methods 0.000 title claims abstract description 26
- 239000000523 sample Substances 0.000 claims abstract description 31
- 238000001514 detection method Methods 0.000 claims description 24
- 239000000758 substrate Substances 0.000 claims description 13
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000009659 non-destructive testing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model relates to a device for automatically detecting a weld joint of a low-pressure welding rotor of a steam turbine for a nuclear power station. The device comprises a guide rail assembly, a circumferential motion assembly, an axial drive assembly, a probe assembly and a circumferential drive assembly. The guide rail assembly is of a circular ring guide rail structure, and the direction of an opening of a guide rail groove is the same as the direction of the axis of the circular ring rail structure. The circumferential motion assembly is embedded into the guide rail assembly and slides along the circular ring guide rail structure. The circumferential drive assembly is matched with the circumferential motion assembly and drives the circumferential motion assembly to slide in the circumferential direction. The axial drive assembly is connected with the circumferential motion assembly and comprises a sliding part which slides in the direction of the axis of the circular ring guide rail structure, and the probe assembly is fixed to the sliding part. The device is quick and convenient to install, the coaxiality of the device and the low-pressure welding rotor of the steam turbine can be quickly determined, and the device can be quickly installed and positioned.
Description
Technical field
The present invention relates to the weld joint automatized technical field of nondestructive testing of steam turbine for nuclear power station low-pressure welding rotor, be specifically related to a kind of steam turbine for nuclear power station low-pressure welding rotor weld seam automatic detection device.
Background technology
Steam turbine for nuclear power station low-pressure welding rotor, severe because of operating mode, stressing conditions is complicated, is the operation that guarantees that it is safe and reliable, need implement Non-Destructive Testing to its weld seam, guarantees that weld seam can not lose efficacy at nuclear power station run duration.
Steam turbine for nuclear power station low-pressure welding rotor welding line structure as shown in Figure 1.From left to right be distributed with in the axial direction 9 annular butt welds, welding seam No is from left to right followed successively by A, B, and C, D, E, F, G, H, J, weld seam position external diameter is 1580-1584mm, and every weld seam crotch axial dimension of opening of living in differs, and spacing is 255-720mm.
At present, the not mentioned device of implementing automatic inspection for steam turbine for nuclear power station low-pressure welding rotor weld seam in prior art.
Summary of the invention
The technical problem that will solve of the present invention be to provide a kind of can for before steam turbine for nuclear power station low-pressure welding rotor weld seam labour, in-service Non-Destructive Testing and a kind of automatic detection device of developing.
In order to solve the problems of the technologies described above, technical scheme of the present invention is that a kind of steam turbine for nuclear power station low-pressure welding rotor weld seam automatic detection device, comprises guide assembly, circumferential movement assembly, axial driven unit, probe assembly, circumferential driven unit;
Described guide assembly is round ring guide structure, and described guide-track groove opening direction is consistent with described round circular orbit structure axis direction;
Described circumferential movement assembly is embedded in described guide assembly and along described round ring guide structure and slides; Described circumferential driven unit and described circumferential movement component matching, drive described circumferential movement assembly along circumferentially sliding; Described axial driven unit is connected with described circumferential movement assembly, and described axial driven unit comprises that described probe assembly is fixed on described slide unit along the slide unit of described round ring guide structure axis direction slip.
Described guide assembly comprises active grab assembly, semi-circular guide rail; Described semi-circular guide rail is semicircular track structure, and its guide-track groove profile is " H " shape, and described guide-track groove opening direction is consistent with described semicircular track structure axis direction;
Described active grab assembly comprises tension hook, hook; The circumferential one end of described semi-circular guide rail lateral surface is fixed with tension hook, and circumferentially other end lateral surface is fixed with hook;
Dock each other at 2 circumferential two ends of semi-circular guide rail, and be connected by tension hook, the hook of grip module, forms round ring guide structure.
Described circumferential movement assembly comprises circumferential movement substrate, several roll wheel assemblies, L shaped connecting plate;
Described roll wheel assembly comprises wheel shaft, is sleeved on the roller that the profile on described wheel shaft is dumbbell shaped; Described roller is embedded in the rail groove of described guide assembly, and with " H " shape profile sliding-contact of described rail groove; Circumferential movement substrate is semi-circular structure, and several roll wheel assemblies are arranged on circumferential movement substrate one side surface by the wheel shaft on it;
Described axial driven unit is arranged on circumferential movement substrate by a L shaped connecting plate.
Described guide assembly also comprises half-ring gear; Described half-ring gear is connected on the end face of described semi-circular guide rail near the described guide-track groove open side of its inner circle wall.
Described circumferential driven unit comprises circumferential drive motors, circumferential driven wheel; Described circumferential driven wheel is installed on the motor shaft of circumferential drive motors, by motor shaft, is driven; The annular gear ring engagement that circumferentially driven wheel and described 2 half-ring gears form realizes circumferential movement.
Described axial driven unit comprises axial drive motors, line slideway, leading screw, slide block, feed screw nut;
The power transmission shaft of described axial drive motors drives leading screw rotation, and slide block is embedded on described line slideway and along line slideway and slides; Feed screw nut is enclosed within on described leading screw; Described slide block is connected with the feed screw nut on leading screw.
Described probe assembly comprises detection probe, probe clamper; Described detection probe is clamped by probe clamper, and probe clamper is fixed on described slide block.
Also comprise positioning component, described positioning component comprises some vacuum cup assemblies of the guide-track groove open side offside that is all arranged at guide assembly, some axial location push rods, also comprise several radial alignment bars, described radial alignment bar points to the center of circle by guide assembly cylindrical and is interspersed on guide assembly; Empty Suction cup assembly is fixed on guide assembly; Axial location push rod is fixed on guide assembly.
Beneficial effect of the present invention:
(1) device has very compact structure in the axial direction, weld seam is of living in when opening crotch axial spacing and being less than 255mm, still guarantees the axial scanning stroke >110mm of probe;
(2) guide rail of device adopts two semi-circular guide rails with half-ring gear that link together, and uses active grab assembly guide assembly can be enclosed within on steam turbine low-pressure welded disc turbine rotor fast, convenience quick for installation;
(3) use dismountable radial alignment bar; Can determine by the quick of the relative steam turbine low-pressure welded disc turbine rotor of implement device axiality;
(4) use vacuum cup assembly fitted shaft to positioning mandril, device to be adsorbed on to the sidewall that is fixed on steam turbine low-pressure welded disc turbine rotor welded seam area, Fast Installation location that can implement device.
Accompanying drawing explanation
Fig. 1 is steam turbine for nuclear power station low-pressure welding rotor weld seam schematic diagram;
Fig. 2 is a kind of steam turbine for nuclear power station low-pressure welding of the present invention rotor weld seam automatic detection device front view;
Fig. 3 is a kind of steam turbine for nuclear power station low-pressure welding of the present invention rotor weld seam automatic detection device cutaway view;
Fig. 4 is a kind of steam turbine for nuclear power station low-pressure welding of the present invention rotor weld seam automatic detection device work schematic diagram.
In figure: 1 guide assembly, 101-semi-circular guide rail, 102-half-ring gear, 2-circumferential movement assembly, 201-circumferential movement substrate, 202-roll wheel assembly, 203-L shape connecting plate, the axial driven unit of 3-, 301-line slideway, 302-slide block, 4-probe assembly, 401-detection probe, 402-probe clamper, 5-positioning component, 501-vacuum cup assembly, 502-axial location push rod, 503-radial alignment bar, the circumferential drive motors of 601-, the circumferential driven wheel of 602-, 7-steam turbine low-pressure welded disc turbine rotor.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is described further.
A kind of steam turbine for nuclear power station low-pressure welding of the present invention rotor weld seam automatic detection device, comprises guide assembly 1, circumferential movement assembly 2, axial driven unit 3, probe assembly 4, positioning component 5, circumferential driven unit 6;
Guide assembly 1 comprises active grab assembly, semi-circular guide rail 101, half-ring gear 102;
Described semi-circular guide rail 101 is semicircular track structure, and its guide-track groove profile is " H " shape, and described guide-track groove opening direction is consistent with described semicircular track structure axis direction; Described half-ring gear 102 is connected on the end face of described semi-circular guide rail 101 near the described guide-track groove open side of its inner circle wall;
Described active grab assembly comprises tension hook, hook; Described semi-circular guide rail 101 circumferential one end lateral surfaces are fixed with tension hook, and circumferentially other end lateral surface is fixed with hook;
Dock each other at 2 circumferential two ends of semi-circular guide rail 101, and be connected by tension hook, the hook of grip module, forms the circumferential guide rail structure of annular;
Circumferential movement assembly 2 comprises circumferential movement substrate 201, several roll wheel assemblies 202;
Described roll wheel assembly 202 comprises wheel shaft, is set with the roller that the profile in described rotating shaft is dumbbell shaped; Described roller is embedded in the rail groove of described guide assembly 1, and with the sliding-contact of described rail groove profile; Circumferential movement substrate 201 is semi-circular structure, and several roll wheel assemblies 202 are arranged on circumferential movement substrate one side surface by the wheel shaft on it;
Axially driven unit 3 comprises axial drive motors, line slideway 301, leading screw, slide block 302, feed screw nut;
The power transmission shaft of described axial drive motors 302 drives leading screw 303 rotations, and slide block 304 is embedded on described line slideway 301 and along line slideway and slides; Feed screw nut 305 is enclosed within on described leading screw 303;
Described slide block 304 is connected with the feed screw nut 305 on leading screw 303;
Axially driven unit 3 is arranged on circumferential movement substrate 201 with screw by a L shaped connecting plate 203
Probe assembly 4 comprises detection probe 401, probe clamper 402;
Described detection probe 401 is clamped by probe clamper 402, and probe clamper 402 is fixed on described slide block 304;
Described positioning component 5 comprises some vacuum cup assemblies 501 of the guide-track groove open side offside that is all arranged at guide assembly 1, some axial location push rods 502, also comprise several radial alignment bars 503, described radial alignment bar 503 points to the center of circle by guide assembly 1 cylindrical and is interspersed on guide assembly 1, and can dismantle at any time; Empty Suction cup assembly 501 is fixed on guide assembly 1; Axial location push rod 502 is fixed on guide assembly 1;
Vacuum cup assembly 501 and the vacuum generator being connected with vacuum cup assembly 501 and compressed air gas circuit, radial alignment bar 503 is coaxial with steam turbine low-pressure welded disc turbine rotor for guarantee two semi-circular guide rails 101 with half-ring gear 102 that are connected together when equipment is installed; Vacuum cup assembly 501 is absorbed and fixed at the sidewall of steam turbine low-pressure welded disc turbine rotor welded seam area for what two were linked together with the semi-circular guide rail 101 of half-ring gear 102; Axial location push rod 502 is for limiting the absorption stroke of vacuum cup assembly 501, the axial location of determining device.
Circumferentially driven unit comprises circumferential drive motors 601, circumferential driven wheel 602; Described circumferential driven wheel 602 is installed on the motor shaft of circumferential drive motors 601, by motor shaft, is driven;
Circumferentially driven wheel 602 is realized circumferential movement with the annular gear ring engagement that described 2 half-ring gears 102 form.
As shown in Figure 4, specific operation process:
First by one, circumferential movement assembly 2 is installed, circumferential driven unit 6, axial driven unit 3, L shaped connecting plate, detection probe 401 and probe clamper 402, radial alignment bar 503, vacuum cup assembly 501, a semi-circular guide rail 101 with half-ring gear 102 of axial location push rod 502 straddles on the outer surface of steam turbine low-pressure welded disc turbine rotor 7 welded seam areas, another one is provided with radial alignment bar 503, vacuum cup assembly 501, a semi-circular guide rail 101 with half-ring gear 102 of axial location push rod 502 strides across from steam turbine low-pressure welded disc turbine rotor bottom, by active grab assembly 103, be joined together to form a complete ring-shaped guide rail with straddling at the semi-circular guide rail 101 on the outer surface top of steam turbine low-pressure welded disc turbine rotor 7 welded seam areas, tighten radial alignment bar 503, make device coaxial with steam turbine low-pressure welded disc turbine rotor 7, connect control cables, signals collecting cable and compressed air gas circuit,
Device is provided with to a thruster of vacuum cup assembly 501 to sidewall the compression of steam turbine low-pressure welded disc turbine rotor 7, open compressed air gas circuit, start vacuum system, make device under the effect of vacuum cup, be absorbed and fixed on the sidewall of steam turbine low-pressure welded disc turbine rotor 7, remove radial alignment bar 503, startup system comes into effect automatic inspection.
Claims (8)
1. a steam turbine for nuclear power station low-pressure welding rotor weld seam automatic detection device, is characterized in that: comprise guide assembly (1), circumferential movement assembly (2), axial driven unit (3), probe assembly (4), circumferential driven unit;
Described guide assembly (1) is round ring guide structure, and described guide-track groove opening direction is consistent with described round circular orbit structure axis direction;
Described circumferential movement assembly (2) is embedded in described guide assembly (1) and along described round ring guide structure and slides; Described circumferential driven unit (6) mates with described circumferential movement assembly (2), drives described circumferential movement assembly (2) along circumferentially sliding; Described axial driven unit (3) is connected with described circumferential movement assembly (2), and described axial driven unit (3) comprises the slide unit sliding along described round ring guide structure axis direction, and described probe assembly (4) is fixed on described slide unit.
2. according to steam turbine for nuclear power station low-pressure welding rotor weld seam automatic detection device claimed in claim 1, it is characterized in that: described guide assembly (1) comprises active grab assembly, semi-circular guide rail (101);
Described semi-circular guide rail (101) is semicircular track structure, and its guide-track groove profile is " H " shape, and described guide-track groove opening direction is consistent with described semicircular track structure axis direction;
Described active grab assembly comprises tension hook, hook; Described semi-circular guide rail (101) circumferentially one end lateral surface is fixed with tension hook, and circumferentially other end lateral surface is fixed with hook;
2 semi-circular guide rails (101) circumferentially dock at two ends each other, and are connected by tension hook, the hook of grip module, form round ring guide structure.
3. according to steam turbine for nuclear power station low-pressure welding rotor weld seam automatic detection device claimed in claim 2, it is characterized in that: described circumferential movement assembly (2) comprises circumferential movement substrate (201), several roll wheel assemblies (202), L shaped connecting plate (203);
Described roll wheel assembly (202) comprises wheel shaft, is sleeved on the roller that the profile on described wheel shaft is dumbbell shaped; Described roller is embedded in the rail groove of described guide assembly (1), and with " H " shape profile sliding-contact of described rail groove; Circumferential movement substrate (201) is semi-circular structure, and several roll wheel assemblies (202) are arranged on circumferential movement substrate one side surface by the wheel shaft on it;
Described axial driven unit (3) is arranged on circumferential movement substrate (201) by a L shaped connecting plate (203).
4. according to steam turbine for nuclear power station low-pressure welding rotor weld seam automatic detection device claimed in claim 2, it is characterized in that: described guide assembly (1) also comprises half-ring gear (102); Described half-ring gear (102) is connected on the end face of described semi-circular guide rail (101) near the described guide-track groove open side of its inner circle wall.
5. according to steam turbine for nuclear power station low-pressure welding rotor weld seam automatic detection device claimed in claim 4, it is characterized in that: described circumferential driven unit comprises circumferential drive motors (601), circumferential driven wheel (602); Described circumferential driven wheel (602) is installed on the motor shaft of circumferential drive motors (601), by motor shaft, is driven; Circumferentially driven wheel (602) is realized circumferential movement with the annular gear ring engagement that described 2 half-ring gears (102) form.
6. according to steam turbine for nuclear power station low-pressure welding rotor weld seam automatic detection device claimed in claim 3, it is characterized in that: described axial driven unit (3) comprises axial drive motors, line slideway (301), leading screw, slide block (302), feed screw nut;
The power transmission shaft of described axial drive motors drives leading screw rotation, and slide block (302) is embedded in described line slideway (301) above and slides along line slideway; Feed screw nut is enclosed within on described leading screw; Described slide block (302) is connected with the feed screw nut on leading screw.
7. according to steam turbine for nuclear power station low-pressure welding rotor weld seam automatic detection device claimed in claim 6, it is characterized in that: described probe assembly (4) comprises detection probe (401), probe clamper (402);
Described detection probe (401) is by probe clamper (402) clamping, and probe clamper (402) is fixed on described slide block (302).
8. according to steam turbine for nuclear power station low-pressure welding rotor weld seam automatic detection device claimed in claim 1, it is characterized in that: also comprise positioning component (5), described positioning component (5) comprises some vacuum cup assemblies (501), some axial location push rods (502) of the guide-track groove open side offside that is all arranged at guide assembly (1), also comprise several radial alignment bars (503), described radial alignment bar (503) points to the center of circle by guide assembly (1) cylindrical and is interspersed on guide assembly (1); Empty Suction cup assembly (501) is fixed on guide assembly (1); Axial location push rod (502) is fixed on guide assembly (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320888920.2U CN203791858U (en) | 2013-12-30 | 2013-12-30 | Device for automatically detecting weld joint of low-pressure welding rotor of steam turbine for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320888920.2U CN203791858U (en) | 2013-12-30 | 2013-12-30 | Device for automatically detecting weld joint of low-pressure welding rotor of steam turbine for nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203791858U true CN203791858U (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320888920.2U Expired - Lifetime CN203791858U (en) | 2013-12-30 | 2013-12-30 | Device for automatically detecting weld joint of low-pressure welding rotor of steam turbine for nuclear power station |
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| Country | Link |
|---|---|
| CN (1) | CN203791858U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741839A (en) * | 2013-12-30 | 2015-07-01 | 中核武汉核电运行技术股份有限公司 | Device for automatically detecting weld joint of low-pressure welding rotor of steam turbine for nuclear power station |
| CN110925574A (en) * | 2019-12-12 | 2020-03-27 | 诸暨都高风能科技有限公司 | Nondestructive testing device for wind turbine blade |
-
2013
- 2013-12-30 CN CN201320888920.2U patent/CN203791858U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741839A (en) * | 2013-12-30 | 2015-07-01 | 中核武汉核电运行技术股份有限公司 | Device for automatically detecting weld joint of low-pressure welding rotor of steam turbine for nuclear power station |
| CN110925574A (en) * | 2019-12-12 | 2020-03-27 | 诸暨都高风能科技有限公司 | Nondestructive testing device for wind turbine blade |
| CN110925574B (en) * | 2019-12-12 | 2020-09-01 | 国家电投集团江西水电检修安装工程有限公司 | Nondestructive testing device for wind turbine blade |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |
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| CX01 | Expiry of patent term |