CN208939685U - A kind of elastic fixing structure between out frame and iron core - Google Patents
A kind of elastic fixing structure between out frame and iron core Download PDFInfo
- Publication number
- CN208939685U CN208939685U CN201822056644.9U CN201822056644U CN208939685U CN 208939685 U CN208939685 U CN 208939685U CN 201822056644 U CN201822056644 U CN 201822056644U CN 208939685 U CN208939685 U CN 208939685U
- Authority
- CN
- China
- Prior art keywords
- iron core
- out frame
- strut
- positioning bar
- tray
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000005461 lubrication Methods 0.000 claims description 13
- 230000001050 lubricating effect Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 description 6
- 239000000314 lubricant Substances 0.000 description 3
- 241000628997 Flos Species 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses the elastic fixing structures between a kind of out frame and iron core, it is arranged between out frame and iron core, it is the positioning bar of double dovetail types including section, the out frame is equipped with tray, and the dovetail slot with positioning bar cooperation is equipped on tray and iron core；The tray is equipped with sleeve, is equipped with the strut to slide axially in sleeve, and one end of strut is in contact with positioning bar, and the other end of strut passes through sleeve and is connected with adjusting nut, and the part that strut is located within sleeve, which is arranged, to have elastic component.The utility model is being released effectively iron core thermal expansion force, on the basis of preventing iron core, base buckling deformation, also has the characteristics that radial rigidity is higher, component wear amount is small and does not allow to be also easy to produce vibration.In addition, the installation and adjustment of the utility model are quite convenient to.
Description
Technical field
The utility model relates to the connection structures between a kind of out frame of hydrogenerator and iron core, especially a kind of fixed
Elastic fixing structure between handset seat and iron core.
Background technique
For large-sized water turbine generator stator core, at present frequently with traditional double dovetail bar fixed structure,
It is respectively provided with dovetail slot on out frame and iron core, is limited by the positioning bar that section is double dovetail types.This fixed structure energy
It is released effectively iron core thermal expansion force, prevents iron core, base buckling deformation.But this fixed structure make to limit iron core it is tangential from
By spending, radially freely decontrol completely.Since radial rigidity is weaker, at work for pump-storage generator, stator core
Often it vibrates, there are some potential safety problemss.Simultaneously as sliding radially, positioning bar and out frame can generate
Abrasion causes the gap on tangential to increase, further increases the vibration of iron core.Therefore, existing out frame and iron core
Fixed structure has that radial rigidity is lower, component wear amount is big and is easy to produce vibration.
Utility model content
The purpose of the utility model is to provide the elastic fixing structures between a kind of out frame and iron core.This is practical new
Type is being released effectively iron core thermal expansion force, on the basis of preventing iron core, base buckling deformation, also has that radial rigidity is higher, portion
Part abrasion loss is small and does not allow the characteristics of being also easy to produce vibration.
The technical solution of the utility model includes: the elastic fixing structure between a kind of out frame and iron core, is arranged in stator
It is the positioning bar of double dovetail types including section between seat and iron core, the out frame is equipped with tray, on tray and iron core
Equipped with the dovetail slot cooperated with positioning bar；The tray is equipped with sleeve, is equipped with the strut to slide axially, strut in sleeve
One end be in contact with positioning bar, the other end of strut passes through sleeve and is connected with adjusting nut, and strut is located within sleeve
Part, which is arranged, to have elastic component.
In a kind of elastic fixing structure between out frame and iron core above-mentioned, the elastic element is disc spring.
In a kind of elastic fixing structure between out frame and iron core above-mentioned, the strut is away from the end of positioning bar
Prism.
In a kind of elastic fixing structure between out frame and iron core above-mentioned, the end that is contacted on the strut with positioning bar
Face is equipped with deep gouge, and lubrication block is equipped in deep gouge.
In a kind of elastic fixing structure between out frame and iron core above-mentioned, the tray is equipped with lubricating cup, lubricating cup
The sponge being arranged on two parallel edges of dovetail slot is connected with through hose.
In a kind of elastic fixing structure between out frame and iron core above-mentioned, the parallel avris of dovetail slot two of the tray
Wall is equipped with the lubrication groove of thickness direction, and lubrication groove is arranged below sponge.
Compared with prior art, the utility model is on the basis of using double-dove-tail structural limitation iron core tangential freedom degree,
The radial freedom degree that positioning bar is also limited by elastic support structure, is fully supported it, and then reduces the vibration of iron core
It is dynamic, reduce security risk.Moreover, it due to the structure that out frame is multilayer annular lamina, is connect on single axial with positioning bar
The tray of touching is corresponding multiple quantity.The elastic support structure of the utility model realizes elasticity member by strut and adjusting nut
The precommpression of part, on the one hand this structure can produce enough gaps makes positioning bar be put into the dovetail slot on tray, convenient for peace
Dress, on the other hand the elastic support structure on same axis be by adjusting that can make support force relatively uniform, avoid positioning bar by
Power unevenness causes to be bent, and improves service life.
Further, the prism of strut end makes itself and nut relatively rotate, convenient for lockking strut to adjust
Elastic element.
Further, lubrication block can effectively reduce the abrasion of positioning bar and strut, and sponge and lubrication groove then can be reduced support
The abrasion of block dovetail cell wall and positioning bar side wall, to avoid tangential gap increasing, aggravation stator core vibration is asked
Topic.
To sum up, the utility model is being released effectively iron core thermal expansion force, on the basis of preventing iron core, base buckling deformation,
Also have the characteristics that radial rigidity is higher, component wear amount is small and does not allow to be also easy to produce vibration.In addition, the installation of the utility model and
Adjustment is quite convenient to.
Detailed description of the invention
Fig. 1 is the position view of the utility model；
Fig. 2 is the structural schematic diagram of the utility model；
Fig. 3 is schematic cross-section of the tray in the direction A-A.
Appended drawing reference: 10- out frame, 20- iron core, 30- positioning bar, 40- tray, 41- lubricating cup, 42- sponge, 43- profit
Sliding slot, 50- sleeve, 51- strut, 52- adjusting nut, 53- elastic element, 54- prism, 55- lubricate block.
Specific embodiment
Below with reference to embodiment, the utility model is described in further detail, but be not intended as to the utility model limit according to
According to.
Embodiment: the elastic fixing structure between a kind of out frame and iron core is arranged in stator as shown in Figure 1 to Figure 3
It is the positioning bar 30 of double dovetail types including section between seat 10 and iron core 20, the out frame 10 is equipped with tray 40, tray
40 and iron core 20 on be equipped with positioning bar 30 cooperate dovetail slot；The tray 40 is equipped with sleeve 50, sets in sleeve 50
Have the strut 51 to slide axially, one end of strut 51 is in contact with positioning bar 30, the other end of strut 51 pass through sleeve 50 with
Adjusting nut 52 is connected, and the part that strut 51 is located within sleeve 50 is arranged with disc spring.
The strut 51 is prism 54 away from the end of positioning bar 30.
The end face contacted on the strut 51 with positioning bar 30 is equipped with deep gouge, and lubrication block 55 is equipped in deep gouge, lubricates block 55
For solid lubricant, preferably molybdenum disulfide.
The tray 40 is equipped with lubricating cup 41, and lubricating cup 41 is connected with the sea being arranged on two parallel edges of dovetail slot through hose
Silk floss 42.
The two parallel edges side wall of dovetail slot of the tray 40 is equipped with the lubrication groove 43 of thickness direction, and the setting of lubrication groove 43 exists
42 lower section of sponge.
Working principle:
When installation, first passes through prism 54 and vise strut 51, then rotating adjusting nut 52, pre-pressing elastic element 53,
The dovetail slot on tray 40 has enough gaps that positioning bar 30 is enable to slide at this time.Then adjusting nut 52 is unclamped, strut 51 is made
Completely attach to positioning bar 30.When necessary, need to limit the branch of individual resilient support members on same axis by adjusting nut 52
Support force.
Iron core 20 completes the limit on tangential through the dovetail slot on the dovetail slot of itself, positioning bar 30 and tray 40 first,
Then limit radially is realized by tray 40, sleeve 50, disc spring, strut 51 and positioning bar 30.It, can when iron core 20 thermally expands
Radially compressed elastic element 53, elastic element 53 transmits the force to sleeve 50, then passes to out frame 10 by tray 40,
The rigidity for borrowing out frame 10, reduces the vibration of iron core.
Strut 51 reduces the abrasion of itself and positioning bar 30 by lubrication block 55.Lubricating cup 41 on tray 40 is slow by hose
Ground soaks sponge 42 with fluid lubricant, and sponge 42 is in contact with positioning bar 30, and sponge 42 seeps lubricant to lubrication groove 43 simultaneously.
Two parallel side walls of dovetail slot are sufficiently lubricated with positioning bar 30 on tray 40 as a result, and abrasion loss is less, thus tangential gap is expanded
Greatly relatively slowly, the vibration of stator is effectively reduced.
Claims (6)
1. the elastic fixing structure between a kind of out frame and iron core is arranged between out frame (10) and iron core (20),
It is characterized in that: being the positioning bar (30) of double dovetail types including section, the out frame (10) is equipped with tray (40), tray
(40) and on iron core (20) it is equipped with the dovetail slot with positioning bar (30) cooperation；The tray (40) is equipped with sleeve (50),
The strut (51) to slide axially is equipped in sleeve (50), one end of strut (51) is in contact with positioning bar (30), strut (51)
The other end pass through sleeve (50) be connected with adjusting nut (52), the part that strut (51) is located within sleeve (50) is arranged with
Elastic element (53).
2. the elastic fixing structure between a kind of out frame according to claim 1 and iron core, it is characterised in that: described
Elastic element (53) is disc spring.
3. the elastic fixing structure between a kind of out frame according to claim 1 and iron core, it is characterised in that: the support
Bar (51) is prism (54) away from the end of positioning bar (30).
4. the elastic fixing structure between a kind of out frame according to claim 1 and iron core, it is characterised in that: the support
The end face contacted on bar (51) with positioning bar (30) is equipped with deep gouge, is equipped with lubrication block (55) in deep gouge.
5. the elastic fixing structure between a kind of out frame according to claim 1 and iron core, it is characterised in that: described
Tray (40) is equipped with lubricating cup (41), and lubricating cup (41) is connected with the sponge (42) being arranged on two parallel edges of dovetail slot through hose.
6. the elastic fixing structure between a kind of out frame according to claim 5 and iron core, it is characterised in that: the support
The two parallel edges side wall of dovetail slot of block (40) is equipped with the lubrication groove (43) of thickness direction, and lubrication groove (43) is arranged in sponge (42)
Lower section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822056644.9U CN208939685U (en) | 2018-12-07 | 2018-12-07 | A kind of elastic fixing structure between out frame and iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822056644.9U CN208939685U (en) | 2018-12-07 | 2018-12-07 | A kind of elastic fixing structure between out frame and iron core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208939685U true CN208939685U (en) | 2019-06-04 |
Family
ID=66728410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822056644.9U Active CN208939685U (en) | 2018-12-07 | 2018-12-07 | A kind of elastic fixing structure between out frame and iron core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208939685U (en) |
-
2018
- 2018-12-07 CN CN201822056644.9U patent/CN208939685U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |