CN2673880Y - High frequency quench equipment for last-stage vane anti-water erosion - Google Patents
High frequency quench equipment for last-stage vane anti-water erosion Download PDFInfo
- Publication number
- CN2673880Y CN2673880Y CNU2003201044362U CN200320104436U CN2673880Y CN 2673880 Y CN2673880 Y CN 2673880Y CN U2003201044362 U CNU2003201044362 U CN U2003201044362U CN 200320104436 U CN200320104436 U CN 200320104436U CN 2673880 Y CN2673880 Y CN 2673880Y
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- CN
- China
- Prior art keywords
- vane
- water erosion
- blade
- chucking
- type piece
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- Expired - Lifetime
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The utility model provides a high frequency quench equipment for last-stage vane anti-water erosion which is especially suitable to be used in high-frequency quenching of vane stipe and vane anti-water erosion. A chucking mechanism is connected by a pin with a rotating mechanism, a weight dropper mechanism and a thimble which is matched with the chucking mechanism. A chucking adopts a U-shaped block and an eccentric press plate mechanism; the rotating mechanism adopts a bearing rotating structure. The U-shaped block and the bearing rotating structure adopts a separable structure which is connected up by pins, and the weight dropper mechanism is welded on a guide ring of a bearing seat of the separable structure. A weight dropper is connected with the U-shaped block and a vane by steel wires through a directive wheel on a directive frame. The chucking is tightly connected with a quench machine tool by pressing bars and stud nuts through the bottom board of the shaft-connected bearing seat. The high frequency quench equipment for last-stage vane anti-water erosion has the effect of that the high frequency quench equipment for last-stage vane anti-water erosion can ensure the vane be chucked stably, conveniently and be detached easily. At the same time, the rotating mechanism on the chucking can rotate simultaneously when the vane is rising, in order to keep the distance between the intake side of the vane and an inductor in line and ensure the heating temperature of the vane uniform.
Description
Technical field
The utility model relates to the anti-water erosion technical field of last stage vane of steam turbine, and the anti-water erosion high-frequency quenching frock of low-pressure last stage blade of steam turbine is particularly suitable for the multifork root blade specifically.
Background technology
The large-size steam turbine low-pressure last stage blade is at high speed rotating, and high humidity Low Temperature Steam environment is work down, handles so blade inlet edge need be prevented water erosion, and one of anti-water erosion scheme is a high-frequency quenching.In anti-water erosion quenching technology scheme, because blade is three-dimensional space distortion moulding, during the high-frequency quenching leading edge, inductor block is fixed, and blade must guarantee that blade inlet edge and inductor block distance remains unchanged when heating continuously.So just must the design specialized frock.According to the knowledge of the applicant, the frock of this quenching does not in the past all have the report of this respect at home and abroad.
The utility model content
The purpose of this utility model is to attempt to fill up the blank of the anti-water erosion high-frequency quenching frock of last stage vane of steam turbine, guarantees the homogeneity of blade Heating temperature with this.
Technical solution of the present utility model is: be divided into four parts, pin is connected with rotating mechanism and weight mechanism, reaches thimble with matching on the immediate shipment mechanism for card, also comprises the calculating of rotation center in addition.Jig adopts U type piece to add the eccentric wheel press plate mechanism, rotating mechanism adopts the bearing rotational structure, the separable structure that U type piece is connected with bearing rotational structure employing pin, be welded with weight mechanism on the guide ring on the bearing support of this mechanism, weight is linked to each other with U type piece, blade with steel wire by the guide deflection sheave on the guide frame, the base plate of the bearing support that connects by axle is fastenedly connected jig and quenching machine with press strip and bolt and nut.
Described U type piece adds the eccentric wheel press plate mechanism and is provided with and is used for blade and supports localized pressing plate, back up pad and steady brace.
The width of described U type piece is greater than the forked type width of blade.
Described rotating mechanism is a roller bearing structure.
The described blade that is used for is arranged in the inductor block at the localized thimble of uphill process, and cooperates with weight mechanism.
The beneficial effects of the utility model are: can guarantee blade be installed stable, convenient, be easy to the dismounting, rotating mechanism on the jig can make blade again in uphill process simultaneously, rotation simultaneously guarantees that blade inlet edge and inductor block distance is consistent, thereby has guaranteed the homogeneity of blade Heating temperature.
Description of drawings
Fig. 1 is the utility model jig overall construction drawing.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the mechanism's front view that is installed.
Fig. 4 is by postrotational each the section type line chart of rotation center.
Fig. 5 is a weight mechanism enlarged view among Fig. 1.
Fig. 6 is the left view of Fig. 5.
Fig. 7 is a weight mechanism enlarged view among Fig. 2.
Fig. 8 is ejector pin mechanism synoptic diagram (belonging to another equipment).
Code name implication among the figure:
1-U type piece; The 2-handle; The 3-pin; The 4-eccentric wheel; The 5-pressing plate; The 6-back up pad; The 7-steady brace; The 8-bolt; The 9-counterbalance weight; The 10-bearing support; The 11-roller bearing; The 12-axle; The 13-base plate; The 14-press strip; The 15-bolt and nut; The 16-guide ring; The 17-guide frame; 18-weight mechanism; The 19-blade; 20,25-straight pin; The 21-wireline; The 22-inductor block; The 23-thimble; The 24-weight; The 26-guide deflection sheave; 27-forked type frame.
Embodiment
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 5, Fig. 6, Fig. 7: the utility model is divided into four parts, is connected with rotating mechanism and weight mechanism, and thimble 23 with matching on the immediate shipment mechanism for card, also comprises the calculating of rotation center in addition.Jig adopts U type piece 1 to add eccentric wheel 4 pressing plates 5 mechanisms, rotating mechanism adopts the bearing rotational structure, U type piece 1 and bearing rotational structure adopt the high structure of dividing that pin is connected, be welded with weight 24 mechanisms on the guide ring 16 on the bearing support 10 of this mechanism, by the 18 usefulness wireline 21 of the weight mechanism on the guide frame 17 weight 24 that the guide deflection sheave on the forked type frame 27 26 hangs is linked to each other with U type piece 1, blade 19, the base plate 13 usefulness press strips 14 and the bolt and nut 15 of the bearing support 10 by axle 12 connections are fastenedly connected jig and quenching machine.U type piece adds the eccentric wheel press plate mechanism and is provided with and is used for blade and supports localized pressing plate 5, back up pad 6 and steady brace 7.The press plate mechanism and the U type piece 1 that will have handle 2 pins 3 eccentric wheels 4 with bolt 8 are fixing.The width of U type piece 1 is a bit larger tham the forked type width of blade, 19 liang of shoulders of blade be placed on U type piece 1 above, steady brace 7 is used for the location of blade 19, blade 19 back of the body sagittal planes contact with steady brace 7, utilize eccentric wheel 4 and pressing plate 5 that blade 19 is fixed then.The position of steady brace 7 combines according to the rotation center and the turning axle 12 of the blade 19 that is calculated, and determines the position of steady brace 7, and there is off-centre in the back because blade 19 is installed, so come balance with counterbalance weight 9.Rotating mechanism is roller bearing 11 structures.Weight 24 provides power for blade 19 rotations.Because turbine blade divides forward and reverse, and forward and reverse molded lines and Y coordinate mutual mapping, so jig is designed to U type piece and the bearing rotational structure is separated, utilize same jig to be applied in the forward and reverse induction Hardening of Rotor Blade like this by adjusting rotation center.
With reference to Fig. 4: make blade 19 rising edge rotation in limit in uphill process, and remain consistent distance at blade 19 leading edge quenching positions, must at first determine the rotation center of blade, and the blade of blade changes in three-dimensional space, the rotation center that none is determined.But can adopt following method to obtain rotation center: to get some cross sections molded lines from the position that blade need quench, with need the quench coordinate at position of these cross section leading edges is benchmark, obtain a rotation center coordinate, each cross section leading edge back of the body arc of blade quenching zone can be rotated by this rotation center, utilize this rotation center, in computer, each cross section molded lines is rotated to an angle, make leading edge back of the body arc overlapping, then rotation center is checked, revised.As the width that quenches reaches 25.1mm, and leading edge back of the body arc lap clearance is in the effect of 0.7-1.8mm.
With reference to Fig. 7: be used for blade 19 and arrange that at the localized thimble 23 of uphill process (using stent support) (this inductor block belongs to another specific equipment: the inductor block of high-frequency induction generator), and cooperate with weight mechanism 18 in inductor block 22.
During quenching, the last stage blade of multifork root is installed on the jig, blade root two shoulders are for supporting, utilize eccentric wheel and briquetting stator blades, add a weight in the jig lower end, blade is rotated in uphill process, near inductor block, add simultaneously the location thimble, blade is positioned in the inductor block, make blade inlet edge quenching position remain at same position, so just can reach the purpose of blade from imitative type, it is consistent simultaneously inductor block and spacing of fins to be remained, and guarantees the homogeneity of blade quenching temperature.
Claims (5)
1. a last stage blade is prevented water erosion high-frequency quenching frock, it is characterized in that: pin is connected with rotating mechanism and weight mechanism in the mechanism that is installed, and thimble with matching, jig adopts U type piece to add the eccentric wheel press plate mechanism, rotating mechanism adopts the bearing rotational structure, the separable structure that U type piece is connected with bearing rotational structure employing pin, be welded with weight mechanism on the guide ring on the bearing support of this mechanism, by the guide deflection sheave on the guide frame with steel wire with weight and U type piece, blade links to each other, and the base plate of the bearing support that connects by axle is fastenedly connected jig and quenching machine with press strip and bolt and nut.
2. last stage blade according to claim 1 is prevented water erosion high-frequency quenching frock, it is characterized in that: U type piece adds the eccentric wheel press plate mechanism and is provided with and is used for blade and supports localized pressing plate, back up pad and steady brace.
3. last stage blade according to claim 1 is prevented water erosion high-frequency quenching frock, and it is characterized in that: the width of U type piece is greater than the forked type width of blade.
4. last stage blade according to claim 1 is prevented water erosion high-frequency quenching frock, and it is characterized in that: rotating mechanism is a roller bearing structure.
5. last stage blade according to claim 1 is prevented water erosion high-frequency quenching frock, it is characterized in that: be used for blade and be arranged in the inductor block at the localized thimble of uphill process, and cooperate with weight mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201044362U CN2673880Y (en) | 2003-12-16 | 2003-12-16 | High frequency quench equipment for last-stage vane anti-water erosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201044362U CN2673880Y (en) | 2003-12-16 | 2003-12-16 | High frequency quench equipment for last-stage vane anti-water erosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2673880Y true CN2673880Y (en) | 2005-01-26 |
Family
ID=34474233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2003201044362U Expired - Lifetime CN2673880Y (en) | 2003-12-16 | 2003-12-16 | High frequency quench equipment for last-stage vane anti-water erosion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2673880Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101649382B (en) * | 2009-07-09 | 2012-12-26 | 无锡动力工程股份有限公司 | Local centering and rotating device of cone socket |
-
2003
- 2003-12-16 CN CNU2003201044362U patent/CN2673880Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101649382B (en) * | 2009-07-09 | 2012-12-26 | 无锡动力工程股份有限公司 | Local centering and rotating device of cone socket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: DONGFANG ELECTRIC GROUP DONGFANG STEAM TURBINE CO. Free format text: FORMER NAME OR ADDRESS: DONGFAN STEAM TURBINE FACTORY |
|
| CP03 | Change of name, title or address |
Address after: 618201 Deyang City, Sichuan Province town of Hanwang Patentee after: Dongfang Turbine Co., Ltd., Dongfang Electric Group Address before: 618201 Deyang City, Sichuan Province town of Hanwang Patentee before: Dongfang Steam Turbine Plant |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131216 Granted publication date: 20050126 |