CN102364834A - Device and method for assembling tensioning wedge block and disc spring on end part of generator stator - Google Patents
Device and method for assembling tensioning wedge block and disc spring on end part of generator stator Download PDFInfo
- Publication number
- CN102364834A CN102364834A CN2011103373804A CN201110337380A CN102364834A CN 102364834 A CN102364834 A CN 102364834A CN 2011103373804 A CN2011103373804 A CN 2011103373804A CN 201110337380 A CN201110337380 A CN 201110337380A CN 102364834 A CN102364834 A CN 102364834A
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- nut
- saucer washer
- generator stator
- hollow hydraulic
- hydraulic jack
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- Manufacture Of Motors, Generators (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention provides a device and a method for assembling a tensioning wedge block and a disc spring on the end part of a generator stator. The device for assembling the tensioning wedge block and the disc spring on the end part of the generator stator is characterized by comprising a hollow hydraulic oil cylinder, wherein the hollow hydraulic oil cylinder is fixedly connected with a keep plate; a stud is arranged in the hollow hydraulic oil cylinder; and one end of the stud is connected with a first nut, and the other end of the stud is provided with a movable plate and a second nut. By the device and the method, the keep plate is directly connected to the hydraulic oil cylinder by threads and tightly attached to the end face of the disc spring; the movable plate is attached to the end face of the tensioning wedge block; and the hollow hydraulic oil cylinder and the movable plate are assembled into a whole by utilizing the stud; and the disc spring is deformed by an opposite force generated when a piston rod in the hydraulic oil cylinder is extended out in pressurization.
Description
Technical field
The present invention relates to the assembling device and the method for a kind of generator stator end tension voussoir and saucer washer; Relate in particular to the assembly technology and the relevant tool of saucer washer deformation quantity control on the adjustable retaining ring tension of a kind of stator end voussoir insulation blanket stud; Be applicable to 600MW grade water-hydrogen generator, belong to the water-hydrogen generator technical field.
Background technology
600MW grade water hydrogen hydrogen turbine generator stator end radially is fixed in the insulation large conic ring by the end coil that inside and outside adjustable retaining ring, radial support ring etc. will stretch out iron core notch, becomes a firm integral body; Each adjustable retaining ring is formed full circle by 4 ring sections; Rely on bandage to be fixed on the insulation large conic ring; And realize radially fixing by tension voussoir stretching bandage; Saucer washer on the tension voussoir insulation blanket stud because deformation gives the tension voussoir certain pretightning force, makes unit end stator coil when operation receive certain radial compaction power all the time after assembling.
Traditional assembly technology is always to dry by the fire the back at stator to be wrenched the saucer washer nut outside with adjustable wrench, knocks the tension voussoir while being wrenched with adz-eye hammer, progressively stretching bandage and make saucer washer produce certain deformation; Its shortcoming is:
1. adz-eye hammer knocks the tension voussoir entirely with operator's experience, in case the excessive bandage that will cause ruptures, repairs difficulty.
2. insulation blanket stud bears twisting resistance when being wrenched nut, exerts oneself excessively to be prone to cause screw rod to twist off, and too small then saucer washer deformation quantity is not enough.
3. assembling back saucer washer deformation quantity is not enough, can't reach designing requirement.
4. the assembling of tension voussoir and saucer washer all is manual operations, the operation dispersiveness that tool is certain.
Summary of the invention
The assembling device and the method that the purpose of this invention is to provide a kind of simple, easy-operating generator stator end tension voussoir and saucer washer.
In order to achieve the above object; The invention provides the assembling device of a kind of generator stator end tension voussoir and saucer washer, it is characterized in that, comprise the hollow hydraulic jack; The hollow hydraulic jack is fixedly connected pressure strip; Be provided with studs in the hollow hydraulic jack, an end of studs connects first nut, and the other end is provided with the portable plate and second nut.
The present invention also provides the assembly method of a kind of generator stator end tension voussoir and saucer washer, it is characterized in that, adopts the assembling device of above-mentioned generator stator end tension voussoir and saucer washer, and concrete steps are:
The first step, pressure strip is placed saucer washer one side, against saucer washer but do not run into the insulation nut, with portable plate against tension voussoir side, with first nut and second nut screwing clamping;
Second step: utilize the hollow hydraulic jack that pressure strip is pressurizeed; Make saucer washer produce deformation, hand-tight make-up insulation nut treats that pressure reaches 1500～2500psi; The nut that will insulate is tightened with adjustable wrench conveniently; Unclamp the hollow hydraulic jack, pull down pressure strip and portable plate, the head end of insulation blanket stud is fastened tied up rope.
The present invention relies on screw thread to be directly connected on the hydraulic jack pressure strip, and is close to the saucer washer end face; Portable plate utilizes studs that hollow hydraulic jack and portable plate are assembled into one near tension voussoir end face, and the opposite force that produces when stretching out through the back hydraulic jack inner piston rod that pressurizes makes saucer washer produce deformation.
Compared with prior art, advantage of the present invention is:
1. the clamping force between tension voussoir and bandage is monitored data-measuring by hydralic pressure gauge; No longer rely on operator's experience, operation is dispersed little.
2. saucer washer relies on the axial compressive force generation deformation that oil cylinder produces, and does not receive torsion on the insulation blanket stud, and screw rod is easy fracture not.
3. the saucer washer deformation quantity is big, meets design requirement, and improves the quality of products.
Description of drawings
Fig. 1 is the assembling sketch map of 600MW grade water-hydrogen generator stator end tension voussoir and saucer washer; Among the figure, 8 is adjustable retaining ring, and 9 is bandage, and 10 are the tension voussoir, and 11 is insulation blanket stud, and 12 is saucer washer, and 13 are the insulation nut, and 14 for tying up rope, and 15 is upper coil, and 16 is inner coil, and 17 is conical ring;
Fig. 2 is the assembling device structural representation of generator stator end tension voussoir and saucer washer; Among the figure, 1 is pressure strip, and 2 is first nut, and 3 is the frock packing ring, and 4 is the hollow hydraulic jack, and 5 is studs, and 6 is portable plate, and 7 is second nut.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Embodiment
As shown in Figure 2; Assembling device structural representation for 600MW grade water-hydrogen generator stator end tension voussoir and saucer washer; The assembling device of described generator stator end tension voussoir and saucer washer comprises hollow hydraulic jack 4, and hollow hydraulic jack 4 is fixedly connected pressure strip 1, is provided with studs 5 in the hollow hydraulic jack 4; One end of studs 5 is provided with first nut 2 and frock packing ring 3, and the other end is provided with the portable plate 6 and second nut 7.
As shown in Figure 1, be the assembling sketch map of generator stator end tension voussoir and saucer washer, during assembling, adopt the above-mentioned generator stator end tension voussoir and the assembling device of saucer washer, concrete steps are:
(1) pressure strip 1 is screwed on the hollow hydraulic jack 4; Studs 5 is penetrated in the hollow hydraulic jack 4 and stretches out pressure strip 1; Be positioned at cover upper mobile board 6 on the studs 5 of oil cylinder opposite side, studs two ends dress frock packing ring 3, first nut 2 and second nut 7; Oil pipe snap joint is received on the hydraulic jack;
(2) pressure strip 1 is installed to saucer washer 12 1 sides, lean on firm saucer washer 12 but do not run into insulation nut 13; Portable plate 6 leans on foot tension voussoir 10 sides; Pressure strip 1, hollow hydraulic jack 4 and portable plate 6 are rectangular basically, and first nut 2 and second nut 7 at studs 5 two ends are tightened;
(3) progressively pressurization, hand-tight make-up insulation nut 13 after saucer washer 12 produces deformation, behind final pressure 2000psi, insulation nut 13 usefulness adjustable wrench are tightened conveniently.
(4) unclamp hollow hydraulic jack 4, pull down pressure strip 1 and portable plate 6, fasten at the head end of insulation blanket stud 11 and tie up rope 14.
Claims (2)
1. the assembling device of generator stator end tension voussoir and saucer washer; It is characterized in that; Comprise hollow hydraulic jack (4), hollow hydraulic jack (4) is fixedly connected pressure strip (1), is provided with studs (5) in the hollow hydraulic jack (4); One end of studs (5) connects first nut (2), and the other end is provided with portable plate (6) and second nut (7).
2. the assembly method of generator stator end tension voussoir and saucer washer is characterized in that, adopts the described generator stator end of claim 1 to strain the assembling device of voussoir and saucer washer, and concrete steps are:
The first step, pressure strip (1) is placed saucer washer (8) one sides, against saucer washer (8) but do not run into insulation nut (13), portable plate (6) against tension voussoir (10) side, is tightened first nut (2) and second nut (7);
Second step: utilize hollow hydraulic jack (4) that pressure strip (1) is pressurizeed; Make saucer washer (8) produce deformation, hand-tight make-up insulation nut (13) treats that pressure reaches 1500～2500psi; The nut (13) that will insulate is tightened with adjustable wrench conveniently; Unclamp hollow hydraulic jack (4), pull down pressure strip (1) and portable plate (6), the head end of insulation blanket stud (11) is fastened tied up rope (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110337380 CN102364834B (en) | 2011-10-31 | 2011-10-31 | Device and method for assembling tensioning wedge block and disc spring on end part of generator stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110337380 CN102364834B (en) | 2011-10-31 | 2011-10-31 | Device and method for assembling tensioning wedge block and disc spring on end part of generator stator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102364834A true CN102364834A (en) | 2012-02-29 |
| CN102364834B CN102364834B (en) | 2013-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110337380 Active CN102364834B (en) | 2011-10-31 | 2011-10-31 | Device and method for assembling tensioning wedge block and disc spring on end part of generator stator |
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| CN (1) | CN102364834B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056591A (en) * | 2013-01-09 | 2013-04-24 | 房县启扬工贸有限责任公司 | Pipe joint gasket assembling method |
| CN103557780A (en) * | 2013-10-29 | 2014-02-05 | 上海电气电站设备有限公司 | Motor parallel connection ring lead fixing tightness detection method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4106189A (en) * | 1977-02-28 | 1978-08-15 | Peters Robert W | Stator coil press |
| CN201298786Y (en) * | 2008-10-31 | 2009-08-26 | 昆明电机厂有限公司 | Universal pressure device |
| CN201332339Y (en) * | 2008-12-30 | 2009-10-21 | 天津电装电机有限公司 | Spring shaping machine |
-
2011
- 2011-10-31 CN CN 201110337380 patent/CN102364834B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4106189A (en) * | 1977-02-28 | 1978-08-15 | Peters Robert W | Stator coil press |
| CN201298786Y (en) * | 2008-10-31 | 2009-08-26 | 昆明电机厂有限公司 | Universal pressure device |
| CN201332339Y (en) * | 2008-12-30 | 2009-10-21 | 天津电装电机有限公司 | Spring shaping machine |
Non-Patent Citations (1)
| Title |
|---|
| 汪永东: "洪江贯流水轮发电机定子铁心制造工艺研究", 《上海大中型电机》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056591A (en) * | 2013-01-09 | 2013-04-24 | 房县启扬工贸有限责任公司 | Pipe joint gasket assembling method |
| CN103557780A (en) * | 2013-10-29 | 2014-02-05 | 上海电气电站设备有限公司 | Motor parallel connection ring lead fixing tightness detection method |
| CN103557780B (en) * | 2013-10-29 | 2016-08-17 | 上海电气电站设备有限公司 | A kind of fixing tightness detection method of motor parallel ring lead-in wire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102364834B (en) | 2013-09-25 |
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