CN103085044A - Hydraulic pressure support device for preventing steam turbine rotor from bending - Google Patents
Hydraulic pressure support device for preventing steam turbine rotor from bending Download PDFInfo
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- CN103085044A CN103085044A CN2012105504994A CN201210550499A CN103085044A CN 103085044 A CN103085044 A CN 103085044A CN 2012105504994 A CN2012105504994 A CN 2012105504994A CN 201210550499 A CN201210550499 A CN 201210550499A CN 103085044 A CN103085044 A CN 103085044A
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Abstract
The invention belongs to the technical field of electrical equipment, and particularly relates to a hydraulic pressure support device for preventing a steam turbine rotor from bending. The hydraulic pressure support device for preventing the steam turbine rotor from bending is characterized by comprising a bottom seat device, a hydraulic lift and a shaft support, wherein the hydraulic lift is placed on the bottom seat device and connected with the shaft support. The bottom seat device is composed of a fixing bottom seat, a sliding groove body, two bearing supports, a movable support, a lead screw and an operation hand wheel, wherein the sliding groove body is placed in the middle of the bottom seat, the two bearing supports are placed on two sides of the sliding groove body, the movable support is connected with the sliding groove body in a sliding mode and connected with the lead screw in a threaded mode, and one end of the lead screw is fixedly connected with the operation hand wheel. According to the hydraulic pressure support device for preventing the steam turbine rotor from bending, the problems of bending and plastic deformation caused when the steam turbine rotor is heavily repaired or the rotor is deposited for a long time are solved. Construction procedures added for preventing the rotor from bending in the heavy repair period are reduced, overhaul period is shortened, and construction quality is guaranteed. The hydraulic pressure support device for preventing the steam turbine rotor from bending has the advantages of being convenient to manufacture and install, good in application effect, easy to operate, small in size, light in weight and the like.
Description
Technical field
The invention belongs to the technical field of steam turbine equipment maintenance, especially relate to the anti-bending hydraulic support device of a kind of turbine rotor.
Background technology
C12-50/5 model steam turbine is middle pressure single cylinder extraction turbine, the machine design speed 3000Y/min, 7.5 tons of rotor gross weights, total length 6000mm.It is flex rotor that turbine rotor has adopted the sleeve structure form, and impeller adopts on the flushing cover assembled shaft of taper cone pulley, to guarantee centering highly and to transmit certain moment of torsion.
Because armature spindle distance, center of gravity are large, aspect anti-bending, specific (special) requirements is arranged, during the turbine rotor low speed rotation, because the deadweight of taper wheel face makes axle be in the downwarp case of bending, but increase when reaching 3000Y/min axle crooked disappearance that be in line with rotating speed.Rotor passes slowly under drive the speed with 5-6Y/min at low speed and rotates all the time when halt turbines, and the flexural deformation of axle is in elastic deformation all the time.When the steam turbine overhaul, after hanging out from body, must put on the dedicated leveling bracing frame rotor, simultaneously bearing portion is done certain protection.This moment, rotor broke away from the moving special environment condition that waits of body slow-speed, how to prevent that the rotor static buckling from being the important process that can not ignore.The anti-bending work of tradition is that the rotor axle head is drawn quartering mark, and the static position of rotating, changing a rotor in artificial every three days on bracing frame its objective is to prevent that the strain that the rotor downwarp produces from developing into the retrospective distortion, reduced the steam turbine running accuracy.But the method is loaded down with trivial details, consumes manpower, and effect is also desirable not to the utmost.
Summary of the invention
The object of the present invention is to provide the anti-bending hydraulic support device of a kind of turbine rotor, during solving the turbine rotor overhaul or the flexural deformation problem deposited of normal phase of rotor, reduce the operational procedure of setting up because rotor is anti-bending during overhaul, shorten maintenance duration, guarantee construction quality.
The objective of the invention is to realize by following technical proposals:
the anti-bending hydraulic support device of turbine rotor of the present invention, it is characterized in that by base device, be located at the hydraulic lift on this base device, therewith the axle that is connected of hydraulic lift support form, described base device is by firm banking, be located at the supermedial chute body of this firm banking, be located at two bearing spiders on this chute body both sides, the mobile support saddle that is slidably connected with described chute body, the leading screw that is threaded of mobile support saddle therewith, the operation handwheel that is fixedly connected with of leading screw one end forms therewith, described leading screw two ends are rotationally connected with described two bearing spiders respectively, described bearing spider all is fixed on described firm banking, described mobile support saddle bottom is provided with the slide rail that is slidably connected with described chute body, the top of described mobile support saddle is provided with the screw that is connected with described threads of lead screw,
Described axle support by the support stand that is connected with described hydraulic lift with support therewith the knife edge type axle holder that stand is fixedly connected with and formed, the holder of described knife edge type axle is the circular arc body with trapezoidal transversal section, the upper surface of this circular arc body is that the narrow recessed surface of circular arc, lower surface is roomy nonreentrant surface, and be abutted against mutually with the steam turbine rotor shaft middle part on described circular arc recessed surface.
Described hydraulic lift is comprised of the folding liftable frame that is located at described mobile support saddle upper surface and the hydraulic jack that is located on this folding liftable frame, described folding liftable frame is by the horizontal underframe that is fixedly connected with described mobile support saddle upper surface, two fork-shearing frames being hinged of the two ends of horizontal underframe therewith respectively, two added compositions of level that fork-shearing frame two ends are hinged therewith respectively, added and the described support stand of described level is fixedly connected with, and described hydraulic jack is provided with hand point pneumatic operating mechanism.
Described chute body is provided with dovetail groove, the swallow-tail form slide rail of the slide rail of described mobile support saddle bottom for being slidably connected with described dovetail groove.
The recessed face width of the circular arc of described circular arc body is 3 ㎜-5 ㎜.
Advantage of the present invention:
1, during the present invention solves the turbine rotor overhaul or the normal phase of rotor deposit and bend and the problem of plastic deformation.Be the anti-bending operational procedure of setting up of rotor during reducing overhaul, shorten maintenance duration and guarantee construction quality;
2, the present invention has the characteristics such as fabrication and installation are convenient, effect is good, easy and simple to handle, volume is little, lightweight.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the left view of Fig. 1 of the present invention.
The specific embodiment
Below in conjunction with description of drawings the specific embodiment of the present invention.
as Fig. 1, shown in 2, the anti-bending hydraulic support device of turbine rotor of the present invention, it is characterized in that by base device, be located at the hydraulic lift on this base device, therewith the axle that is connected of hydraulic lift support form, the upper end that axle supports is connected with the steam turbine rotor shaft contact, and liftable moves under the driving of hydraulic lift, adjust best resting position, so just can reduce steam turbine rotor shaft middle part deflection deformation, described base device is by firm banking 2, be located at the supermedial chute body 1 of this firm banking 2, be located at two bearing spiders 3 of this chute body both sides, the mobile support saddle 5 that is slidably connected with described chute body, the leading screw 4 that is threaded of mobile support saddle 5 therewith, the operation handwheel 10 that is fixedly connected with of leading screw 4 one ends forms therewith, mobile support saddle 5 can be with the moving axis carries left to move right, purpose is to find the optimal site that contacts with steam turbine rotor shaft, described leading screw 4 two ends are rotationally connected with described two bearing spiders 3 respectively, described bearing spider 3 all is fixed on described firm banking 2, described mobile support saddle 5 bottoms are provided with the slide rail that is slidably connected with described chute body, the top of described mobile support saddle 5 is provided with the screw 11 that is threaded with described leading screw 4, mobile support saddle 5 middle parts are provided with through hole or groove, through hole or groove two ends are fixedly connected with screw 11, and through hole or groove inner surface do not contact with the outer round surface of leading screw 4, driving force when reducing operation leading screw 4,
Described axle support by the support stand that is connected with described hydraulic lift with support therewith the knife edge type axle holder 9 that stand 8 is fixedly connected with and formed, described knife edge type axle holder 9 is for having the circular arc body of trapezoidal transversal section, the upper surface of this circular arc body is that the narrow recessed surface of circular arc, lower surface is roomy nonreentrant surface, and be abutted against mutually with steam turbine rotor shaft 14 middle parts on described circular arc recessed surface.Adopting narrow circular arc recessed surface is in order to adapt to the profile construction features on steam turbine rotor shaft 14.
Described hydraulic lift is comprised of the folding liftable frame that is located at described mobile support saddle 5 upper surfaces and the hydraulic jack 13 that is located on this folding liftable frame, described folding liftable frame is by the horizontal underframe 12 that is fixedly connected with described mobile support saddle 5 upper surfaces, two fork-shearing frames 6 being hinged of the two ends of horizontal underframe 12 therewith respectively, two added 7 compositions of level that fork-shearing frame 6 two ends are hinged therewith respectively, described level added 7 is fixedly connected with described support stand 8, and described hydraulic jack 13 is provided with hand point pneumatic operating mechanism 15.Be abutted against mutually with horizontal underframe 12 hydraulic jack 13 bottoms, and be abutted against mutually with level added 7 at hydraulic jack 13 tops, moves on hydraulic jack 13 rising drive levels added 7, and hydraulic jack 13 decline drive levels added 7 move down,
Described chute body 1 is provided with dovetail groove, the swallow-tail form slide rail of the slide rail of described mobile support saddle 5 bottoms for being slidably connected with described dovetail groove.This precision that is slidably connected is high, and is steadily mobile.
The recessed face width of the circular arc of described circular arc body is 3 ㎜-5 ㎜.
Claims (4)
1. anti-bending hydraulic support device of turbine rotor, it is characterized in that by base device, be located at the hydraulic lift on this base device, therewith the axle that is connected of hydraulic lift support form, described base device is by firm banking, be located at the supermedial chute body of this firm banking, be located at two bearing spiders on this chute body both sides, the mobile support saddle that is slidably connected with described chute body, the leading screw that is threaded of mobile support saddle therewith, the operation handwheel that is fixedly connected with of leading screw one end forms therewith, described leading screw two ends are rotationally connected with described two bearing spiders respectively, described bearing spider all is fixed on described firm banking, described mobile support saddle bottom is provided with the slide rail that is slidably connected with described chute body, the top of described mobile support saddle is provided with the screw that is connected with described threads of lead screw,
Described axle support by the support stand that is connected with described hydraulic lift with support therewith the knife edge type axle holder that stand is fixedly connected with and formed, the holder of described knife edge type axle is the circular arc body with trapezoidal transversal section, the upper surface of this circular arc body is that the narrow recessed surface of circular arc, lower surface is roomy nonreentrant surface, and be abutted against mutually with the steam turbine rotor shaft middle part on described circular arc recessed surface.
2. the anti-bending hydraulic support device of turbine rotor according to claim 1, it is characterized in that described hydraulic lift is comprised of the folding liftable frame that is located at described mobile support saddle upper surface and the hydraulic jack that is located on this folding liftable frame, described folding liftable frame is by the horizontal underframe that is fixedly connected with described mobile support saddle upper surface, two fork-shearing frames being hinged of the two ends of horizontal underframe therewith respectively, two added compositions of level that fork-shearing frame two ends are hinged therewith respectively, added and the described support stand of described level is fixedly connected with, described hydraulic jack is provided with hand point pneumatic operating mechanism.
3. the anti-bending hydraulic support device of turbine rotor according to claim 1, is characterized in that described chute body is provided with dovetail groove, the swallow-tail form slide rail of the slide rail of described mobile support saddle bottom for being slidably connected with described dovetail groove.
4. the anti-bending hydraulic support device of turbine rotor according to claim 1, the recessed face width of circular arc that it is characterized in that described circular arc body is 3 ㎜-5 ㎜.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210550499.4A CN103085044B (en) | 2012-12-18 | 2012-12-18 | Hydraulic pressure support device for preventing steam turbine rotor from bending |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210550499.4A CN103085044B (en) | 2012-12-18 | 2012-12-18 | Hydraulic pressure support device for preventing steam turbine rotor from bending |
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| Publication Number | Publication Date |
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| CN103085044A true CN103085044A (en) | 2013-05-08 |
| CN103085044B CN103085044B (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210550499.4A Active CN103085044B (en) | 2012-12-18 | 2012-12-18 | Hydraulic pressure support device for preventing steam turbine rotor from bending |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105712235A (en) * | 2016-04-19 | 2016-06-29 | 杭州恒宏机械有限公司 | Vehicle jacking and horizontal moving device |
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| CN201554832U (en) * | 2010-03-11 | 2010-08-18 | 纽威数控装备（苏州）有限公司 | Bending-proof device for ball screw |
| CN102425440A (en) * | 2011-11-21 | 2012-04-25 | 三一重型综采成套装备有限公司 | Hydraulic support and lifting device thereof |
| CN102441806A (en) * | 2012-01-06 | 2012-05-09 | 昆山海大数控技术有限公司 | Support device of numerically controlled intersection line cutting machine |
| CN202336734U (en) * | 2011-10-21 | 2012-07-18 | 上海莱克气割机有限公司 | Motor-driven bracket of cutting machine |
| CN202510401U (en) * | 2012-03-17 | 2012-10-31 | 鞍钢集团矿业公司 | Hand-cranking braking device for rotating shaft of large-scale induced draft fan |
| CN202964616U (en) * | 2012-12-18 | 2013-06-05 | 鞍钢集团矿业公司 | Anti-bending hydraulic supporting device of steam turbine rotor |
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2012
- 2012-12-18 CN CN201210550499.4A patent/CN103085044B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2183545Y (en) * | 1994-02-01 | 1994-11-23 | 北京有色金属研究总院 | Cantilever atmosphere resistance furnace |
| CN101428384A (en) * | 2008-12-01 | 2009-05-13 | 山西省电力公司电力科学研究院 | Apparatus for repairing generator rotor shaft neck |
| CN201554832U (en) * | 2010-03-11 | 2010-08-18 | 纽威数控装备（苏州）有限公司 | Bending-proof device for ball screw |
| CN202336734U (en) * | 2011-10-21 | 2012-07-18 | 上海莱克气割机有限公司 | Motor-driven bracket of cutting machine |
| CN102425440A (en) * | 2011-11-21 | 2012-04-25 | 三一重型综采成套装备有限公司 | Hydraulic support and lifting device thereof |
| CN102441806A (en) * | 2012-01-06 | 2012-05-09 | 昆山海大数控技术有限公司 | Support device of numerically controlled intersection line cutting machine |
| CN202510401U (en) * | 2012-03-17 | 2012-10-31 | 鞍钢集团矿业公司 | Hand-cranking braking device for rotating shaft of large-scale induced draft fan |
| CN202964616U (en) * | 2012-12-18 | 2013-06-05 | 鞍钢集团矿业公司 | Anti-bending hydraulic supporting device of steam turbine rotor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105712235A (en) * | 2016-04-19 | 2016-06-29 | 杭州恒宏机械有限公司 | Vehicle jacking and horizontal moving device |
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| CN103085044B (en) | 2015-05-13 |
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Address after: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee after: Anshan Iron and Steel Group Mining Co., Ltd. Address before: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee before: Anshan Iron & Steel Group Mining Co., Ltd. |
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