CN202493857U - Steam turbine set foundation bolt base cambered surface secondary adjusting device - Google Patents
Steam turbine set foundation bolt base cambered surface secondary adjusting device Download PDFInfo
- Publication number
- CN202493857U CN202493857U CN2012201039787U CN201220103978U CN202493857U CN 202493857 U CN202493857 U CN 202493857U CN 2012201039787 U CN2012201039787 U CN 2012201039787U CN 201220103978 U CN201220103978 U CN 201220103978U CN 202493857 U CN202493857 U CN 202493857U
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- China
- Prior art keywords
- steam turbine
- foundation bolt
- cambered surface
- stone bolt
- turbine set
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- Expired - Fee Related
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Abstract
The utility model discloses a steam turbine set foundation bolt base cambered surface secondary adjusting device. The steam turbine set foundation bolt base cambered surface secondary adjusting device comprises a foundation bolt, and a lower end of the foundation bolt is fixed in a foundation of a steam turbine. A foundation bolt seat sleeved in the foundation bolt is arranged on the foundation of the steam turbine and a supporting nut is sleeved on an upper portion of the foundation bolt seat. The upper end of the supporting nut is assembled with a supporting ring through mutually matched concentric cambered surface structure, a top end face of the supporting ring contacts with a lower surface of a rack bottom plate, the rack bottom plate is sleeved on the foundation bolt through a bearing sleeve, and an upper portion of the rack bottom plate is provided with a clamp device. The steam turbine set foundation bolt base cambered surface secondary adjusting device is fast in installation and adjustment, simple in structure and strong in generality. In addition, the foundation bolt adopted the steam turbine set foundation bolt base cambered surface secondary adjusting device is higher in adjusting accuracy, shorter in installation and adjustment time, lower in installation cost and better in operation and use stability.
Description
Technical field
The utility model relates to a kind of steam turbine set stone bolt base cambered surface secondary regulating device, is specially adapted to the rapid adjustment and the location of large scale multi-cylinder steam turbine set stone bolt.
Background technique
Steam turbine is in installation at present, and stone bolt is being born the function that guarantees unit level and location, and it is the benchmark of stator horizontal adjustemt, and the quality of its construction quality will directly influence the operation of unit.In the Turbo-generator Set installment work, conventional steam turbine stone bolt adjustment mode generally adopts parallels regulating device (as shown in Figure 3).What framework soleplate supported the great majority employing is that direct parallels 11 supports; After parallels grouting; Can only use the gap and the absolute altitude of pad adjustment steam turbine set framework soleplate, adjusting process is complicated, and the adjustment precision is unstable; The assembling adjustment in place of the absolute altitude of the equipment of giving, levelness, equipment brings inconvenience, influences unit operation steady in a long-term.This construction process is comparatively loaded down with trivial details, and the construction period is long, needs repeatedly spot repair to grind, and cost is high.The levelness at basic chipping place is not easy to guarantee in scope of design in the work progress, cause steam turbine location back parallels adjustment, to repair the amount of grinding excessive.
The model utility content
The purpose of the utility model is for overcoming the deficiency of above-mentioned existing technology; A kind of steam turbine set stone bolt base cambered surface secondary regulating device is provided; Fast, high, simple in structure, the highly versatile of adjustment precision of this device installation adjustment adopts the stone bolt adjustment precision of this device higher, and installation and adjustment time are shorter; Installation cost is low, and the operation stability in use is better.
For realizing above-mentioned purpose, the utility model adopts following technical proposals:
A kind of steam turbine set stone bolt base cambered surface secondary regulating device; Comprise that the lower end is fixed in the stone bolt in the steam turbine basis; Be located the stone bolt seat that is enclosed within on the stone bolt on the steam turbine basis; Assemble through outside thread and holding nut on stone bolt seat top, holding nut upper end and the concentric globoidal structure assembling of support ring through cooperatively interacting, and the support ring top end contacts with the framework soleplate lower surface; Framework soleplate is enclosed within on the stone bolt through bearing sleeve, and framework soleplate top is provided with securing means.
The upper-end surface of said holding nut is recessed arc shape.
The concentric arc shape that with the recessed arc shape of said holding nut match of the lower end surface of said support ring for protruding downwards.
Between said support ring and the holding nut assembling cambered surface eccentricity value Δ e is arranged; Δ e=(0.8～0.95) t; T is the adjusting play value; The accurate adjustment amount Δ of absolute altitude secondary l is the trace adjustment in the scope of (0～0.3) t, because the ratio of absolute altitude secondary accurate adjustment amount Δ l and concentric arcs radius surface has guaranteed support ring top end maintenance level in the adjustment process in 0.001～0.003 scope.
Said securing means comprises nut and packing washer, and said packing washer is pressed on the bearing sleeve upper-end surface, and nut is arranged on the packing washer.
The stone bolt seat of the utility model is seated on the steam turbine basis, and stone bolt seat top has outside thread and holding nut assembles through screw-thread fit, utilizes instrument adjustment holding nut to reach the absolute altitude of adjusting frame on a large scale and the purpose of level; The concentric globoidal structure that holding nut and support ring utilization cooperatively interact assembles, and cooperates the eccentricity value of cambered surface through adjusting both, reaches the absolute altitude and the level of frame are carried out the accurately purpose of adjustment of micro-secondary.Through adjusting play value t; Make concentric cambered surface produce the eccentricity value of Δ e=(0.8～0.95) t; The accurate adjustment amount Δ of absolute altitude secondary l can carry out the trace adjustment in the scope of (0～0.3) t; Because the ratio of absolute altitude secondary accurate adjustment amount Δ l and concentric arcs radius surface has guaranteed support ring top end maintenance level in the adjustment process in 0.001～0.003 scope, the absolute altitude of framework soleplate is accurately adjusted among a small circle; The top end of support ring cooperates with the frame base plane, through stone bolt and inner each regulating mechanism frame and platen handle is fastened.
The beneficial effect of the utility model is that the utility model is used for the location and the rapid adjustment of Large Steam Turbine Sets stone bolt.Because holding nut is concentric cambered surface assembly structure with support ring; Make that adjustment amount is little in the installation process of stone bolt, the adjustment time is short, and the level of frame and centering adjustment can be accomplished fast; And stability is high; It is little to produce the thermal expansion effects when receiving the unit start and stop, practices thrift the unit assembled in situ time in a large number, reduces frame level and absolute altitude adjustment workload.
With respect to traditional steam turbine stone bolt parallels regulating device that is applied to, adopt the stone bolt adjustment precision of this device higher, install and the adjustment time shorter, installation cost is low, the operation stability in use is better.
Description of drawings
Fig. 1 is the utility model steam turbine set stone bolt base cambered surface secondary regulating device structural representation;
Fig. 2 is the utility model steam turbine set stone bolt base cambered surface secondary adjustment amount schematic representation;
Fig. 3 is foot bolt parallels regulating device schematic representation routinely;
Wherein 1, the steam turbine basis, 2, stone bolt, 3, holding nut, 4, framework soleplate, 5, nut, 6, packing washer, 7, bearing sleeve, 8, support ring, 9, the stone bolt seat, 10, cambered surface with one heart, 11, parallels.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Like Fig. 1, shown in Figure 2; Stone bolt seat 9 is seated on the steam turbine basis 1; Matching with holding nut 3 through outside thread in stone bolt seat 9 tops, utilizes instrument adjustment holding nut 3 tentatively to adjust the level and the absolute altitude of framework soleplate 4 on a large scale, and holding nut 3 is installed through concentric cambered surface 10 respective outer side edges with support ring 8; Through the eccentricity value Δ e of adjustment support ring 8, reach the absolute altitude and the level of frame are carried out the accurately purpose of adjustment of micro-secondary with holding nut 3 assembling cambered surfaces.Through adjusting play value t; Make concentric cambered surface produce the eccentricity value of Δ e=(0.8～0.95) t; The accurate adjustment amount Δ of absolute altitude secondary l can carry out the trace adjustment in the scope of (0～0.3) t; Because the ratio of absolute altitude secondary accurate adjustment amount Δ l and concentric arcs radius surface has guaranteed support ring top end maintenance level in the adjustment process in 0.001～0.003 scope, the absolute altitude of framework soleplate is accurately adjusted among a small circle.The support ring top end contacts with framework soleplate 4 lower surfaces, through packing washer 6, nut 5 and stone bolt 2 steam turbine basis 1 and frame handle is fastened.Because the position of stone bolt and erection sequence are different; The lower surface of the stone bolt packing washer of installing at last 6 then contacts with the upper-end surface of bearing sleeve 7; And the lower surface of packing washer 6 and framework soleplate 4 upper surfaces have a determining deviation, in order to avoid produced the location.
Though the above-mentioned accompanying drawing that combines is described the embodiment of the utility model; But be not restriction to the utility model protection domain; One of ordinary skill in the art should be understood that; On the utility model technological scheme basis, those skilled in the art need not pay various modifications that creative work can make or distortion still in the protection domain of the utility model.
Claims (4)
1. steam turbine set stone bolt base cambered surface secondary regulating device; Comprise that the lower end is fixed in the stone bolt in the steam turbine basis; It is characterized in that be located the stone bolt seat that is enclosed within on the stone bolt on the steam turbine basis, assemble through outside thread and holding nut on stone bolt seat top; Holding nut upper end and the concentric globoidal structure assembling of support ring through cooperatively interacting; The support ring top end contacts with the framework soleplate lower surface, and framework soleplate is enclosed within on the stone bolt through bearing sleeve, and framework soleplate top is provided with securing means.
2. steam turbine set stone bolt base cambered surface secondary regulating device as claimed in claim 1 is characterized in that the upper-end surface of said holding nut is recessed arc shape.
3. steam turbine set stone bolt base cambered surface secondary regulating device as claimed in claim 2 is characterized in that, the concentric arc shape that with the recessed arc shape of said holding nut match of the lower end surface of said support ring for protruding downwards.
4. steam turbine set stone bolt base cambered surface secondary regulating device as claimed in claim 1 is characterized in that said securing means comprises nut and packing washer, and said packing washer is pressed on the bearing sleeve upper-end surface, and nut is arranged on the packing washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201039787U CN202493857U (en) | 2012-03-19 | 2012-03-19 | Steam turbine set foundation bolt base cambered surface secondary adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201039787U CN202493857U (en) | 2012-03-19 | 2012-03-19 | Steam turbine set foundation bolt base cambered surface secondary adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202493857U true CN202493857U (en) | 2012-10-17 |
Family
ID=47000086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201039787U Expired - Fee Related CN202493857U (en) | 2012-03-19 | 2012-03-19 | Steam turbine set foundation bolt base cambered surface secondary adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202493857U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606852A (en) * | 2012-03-19 | 2012-07-25 | 山东齐鲁电机制造有限公司 | Base arc face secondary adjusting device for foundation bolt of turboset |
| CN104696673A (en) * | 2015-02-12 | 2015-06-10 | 潘鹏程 | Movable machine tool sizing block |
| CN113007500A (en) * | 2021-02-10 | 2021-06-22 | 中国商用飞机有限责任公司 | Foot margin fixing device |
-
2012
- 2012-03-19 CN CN2012201039787U patent/CN202493857U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606852A (en) * | 2012-03-19 | 2012-07-25 | 山东齐鲁电机制造有限公司 | Base arc face secondary adjusting device for foundation bolt of turboset |
| CN104696673A (en) * | 2015-02-12 | 2015-06-10 | 潘鹏程 | Movable machine tool sizing block |
| CN104696673B (en) * | 2015-02-12 | 2019-06-21 | 昆山市苞蕾众创投资管理有限公司 | Removable iron gasket for machine tool |
| CN113007500A (en) * | 2021-02-10 | 2021-06-22 | 中国商用飞机有限责任公司 | Foot margin fixing device |
| CN113007500B (en) * | 2021-02-10 | 2022-04-05 | 中国商用飞机有限责任公司 | Foot margin fixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20210319 |