CN204163917U - A kind of supporting structure of Hydraulic generator pilot bearing frame - Google Patents
A kind of supporting structure of Hydraulic generator pilot bearing frame Download PDFInfo
- Publication number
- CN204163917U CN204163917U CN201420507919.5U CN201420507919U CN204163917U CN 204163917 U CN204163917 U CN 204163917U CN 201420507919 U CN201420507919 U CN 201420507919U CN 204163917 U CN204163917 U CN 204163917U
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- screw rod
- frame
- damper
- pin
- connecting base
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a kind of supporting structure of Hydraulic generator pilot bearing frame, comprise damper and protective gear, described damper is fixed on frame support arm, described protective gear comprises connecting base, screw rod and pin, described connecting base is fixed on basis, described screw rod is fixedly connected with connecting base by pin, and screw rod is between connecting base and damper; When frame is transshipped, damper coordinates with screw rod cuts off pin.The utility model can not only adjust frame support stiffness; accommodate thermal expansion; improve generator combined critical speed, change frame vibration frequency, avoid generator to resonate, reduce vibration amplitude; reduce basic stress; can also when generator set breaks down or frame is transshipped; disconnect frame and the connection on basis, reach the object on protection basis.
Description
Technical field
The utility model belongs to hydraulic turbine generator field, particularly relates to a kind of supporting structure of Hydraulic generator pilot bearing frame.
Background technique
Hydraulic turbine generator is generally supported by guide bearing frame, frame is generally connected with concrete foundation, the support stiffness that frame provides needs to ensure generator combined critical speed, and frame needs to bear magnetic pull, rotatable parts mechanical imbalance power and accommodate thermal expansion, ensures that underlying security is reliable.Support stiffness has material impact to generator combined critical speed, frame vibration frequency and amplitude.At present, high-speed high capacity generator exist due to housing rigidity deficiency occurs that the excessive or housing rigidity of frame vibration amplitude is excessive can not the accommodate thermal expansion problem that makes basic stress excessive.
In order to solve the problems of the technologies described above, in prior art, propose following technology:
China Patent No. " 201010503687.2 " discloses a kind of rack construction, its publication date is on May 9th, 2012, its technological scheme is that described supporting structure is made up of main shaft, guide bearing, frame, stander end jack, one-way damper, frame and out frame are by fixing closing bolt, frame arm end is connected by stander end jack and one-way damper with basis, one-way damper is fixed on base concrete, and guide bearing is arranged in frame, and main shaft is arranged in guide bearing.But this patent in actual applications, because damper stiffness is greater than jack rigidity, be therefore difficult to one-way damper and jack to be adjusted to and carry stressed simultaneously, easily occur jack almost inoperative problem.Further, because damper dynamic rate is large, therefore when generator failure or frame overload, load conducts to basis, easily causes foundation failure, and is very difficult to after foundation failure repair.And, after foundation failure, go back the remote-effects safe operation of unit.
Model utility content
The purpose of this utility model is to overcome the above-mentioned problems in the prior art, provides a kind of supporting structure of Hydraulic generator pilot bearing frame.The utility model can not only adjust frame support stiffness; accommodate thermal expansion; improve generator combined critical speed, change frame vibration frequency, avoid generator to resonate, reduce vibration amplitude; reduce basic stress; can also when generator set breaks down or frame is transshipped; disconnect frame and the connection on basis, reach the object on protection basis.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of supporting structure of Hydraulic generator pilot bearing frame, it is characterized in that: comprise damper and protective gear, described damper is fixed on frame support arm, described protective gear comprises connecting base, screw rod and pin, described connecting base is fixed on basis, described screw rod is fixedly connected with connecting base by pin, and screw rod is between connecting base and damper; When frame is transshipped, damper coordinates with screw rod cuts off pin.
Described protective gear also comprises column cap, and described column cap is fixed on screw rod, and column cap is between damper and screw rod.
Described column cap offers fixed hole, described connecting base offers mounting hole, one end of described screw rod is threaded with the fixed hole of column cap, and the other end is fixed in mounting hole by pin.
Described pin offers two annular grooves, described screw rod is between two annular grooves.
Employing the utility model has the advantage of:
One, in the utility model, damper has the advantages that static stiffness is little and dynamic rate is large, correspondingly, static stiffness little energy accommodate thermal expansion, reduce basic stress, dynamic rate greatly then has good weakening effect to Generator Vibration, and the rigidity of damper is adjustable, frame vibration frequency can be changed, avoid resonating, be conducive to the safety reliability reducing vibration amplitude, improve combined critical speed and raising generator.And protective gear is arranged on the structure between damper and basis; enough support stiffness can either be provided for the normal operation of generator; ensure the combined critical speed of generator; can coordinate with damper when generator set breaks down or frame is transshipped again and directly cut off pin; disconnect frame and basic connection; avoid load to conduct to basis and cause foundation failure, reaching the object on protection basis.Compared with the prior art being representative with China Patent No. " 201010503687.2 ", the utility model not only makes the basic stress of frame when transshipping less, better to the protected effect on basis, also has the advantage that structure is simple and easy for installation.
Two, in the utility model; described protective gear also comprises the column cap be fixed on screw rod, and described column cap is between damper and screw rod, and this structure increases the area of contact of protective gear and damper; make the transmission of overloading load more concentrated, be conducive to improving the speed of cutting off pin.
Three, in the utility model, one end of described screw rod is threaded with the fixed hole of column cap, the other end is fixed in mounting hole by pin, this structure is conducive to the tightness of the Contact regulating column cap and damper, make overloading load can conduct to pin place by screw rod fast and stable, guarantee to cut off pin rapidly.
Four, in the utility model, described pin offers two annular grooves, described screw rod is between two annular grooves, and this structure reduces the difficulty of cutting off screw rod, can prevent from occurring threaded rod shear continuous situation during overloading load.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of protective gear in the utility model;
Being labeled as in figure: 1, frame, 2, damper, 3, basis, 4, protective gear, 5, connecting base, 6, screw rod, 7, column cap, 8, pin, 9, fixed hole, 10, annular groove, 11, mounting hole.
Embodiment
Embodiment 1
A kind of supporting structure of Hydraulic generator pilot bearing frame, comprise damper 2 and protective gear 4, described damper 2 is fixed on frame 1 support arm, described protective gear 4 comprises connecting base 5, screw rod 6 and pin 8, described connecting base 5 is fixed on basis 3, described screw rod 6 is fixedly connected with connecting base 5 by pin 8, and screw rod 6 is between connecting base 5 and damper 2; When generator set breaks down or frame 1 is transshipped, damper 2 coordinates with screw rod 6 cuts off pin 8.
The preferred implementation of the present embodiment is; described protective gear 4 also comprises the column cap 7 be fixed on screw rod 6; described column cap 7 is between damper 2 and screw rod 6; and column cap 7 contacts with damper 2; when generator set breaks down or frame 1 is transshipped, damper 2 to be coordinated with screw rod 6 by column cap 7 cuts off pin 8.Further, described column cap 7 offers fixed hole 9, described connecting base 5 offers mounting hole 11, one end of described screw rod 6 is threaded with the fixed hole 9 of column cap 7, and the other end is fixed in mounting hole 11 by pin 8.
The present embodiment when mounted, first damper 2 is fixed on frame 1 support arm, then by bolt, connecting base 5 is fixed on basis 3, then by pin 8, screw rod 6 is fixed in mounting hole 11, then column cap 7 is fixed on screw rod 6, finally regulates column cap 7 to make itself and damper 2 close contact.
In the present embodiment, described damper 2 is existing product, be silicone fluid in damper 2, silicone fluid has high viscosity, very little compressibility, temperature variation to the feature of its performance without impact, has the advantage that static stiffness is little, dynamic rate is large and dynamic rate is adjustable in use.Good weakening effect is had to Generator Vibration.
In the present embodiment, according to actual needs two or more sets dampers 2 and protective gear 4 can be set between frame 1 support arm and basis 3.
Embodiment 2
The present embodiment and above-described embodiment are substantially identical, and the main distinction is: described pin 8 offers two annular grooves 10, and described screw rod 6 is between two annular grooves 10.When overloading load conducts to pin 8 by screw rod 6, can quick shearing pin 8 by two annular grooves 10, protection basis 3 is not damaged.
Claims (4)
1. the supporting structure of a Hydraulic generator pilot bearing frame, it is characterized in that: comprise damper (2) and protective gear (4), described damper (2) is fixed on frame (1) support arm, described protective gear (4) comprises connecting base (5), screw rod (6) and pin (8), described connecting base (5) is fixed on basis (3), described screw rod (6) is fixedly connected with connecting base (5) by pin (8), and screw rod (6) is positioned between connecting base (5) and damper (2); When frame (1) is transshipped, damper (2) coordinates with screw rod (6) cuts off pin (8).
2. the supporting structure of a kind of Hydraulic generator pilot bearing frame as claimed in claim 1; it is characterized in that: described protective gear (4) also comprises column cap (7); described column cap (7) is fixed on screw rod (6), and column cap (7) is positioned between damper (2) and screw rod (6).
3. the supporting structure of a kind of Hydraulic generator pilot bearing frame as claimed in claim 2, it is characterized in that: described column cap (7) offers fixed hole (9), described connecting base (5) offers mounting hole (11), one end of described screw rod (6) is threaded with the fixed hole (9) of column cap (7), and the other end is fixed in mounting hole (11) by pin (8).
4. the supporting structure of a kind of Hydraulic generator pilot bearing frame as claimed in claim 1 or 2, is characterized in that: described pin (8) offers two annular grooves (10), and described screw rod (6) is positioned between two annular grooves (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420507919.5U CN204163917U (en) | 2014-09-04 | 2014-09-04 | A kind of supporting structure of Hydraulic generator pilot bearing frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420507919.5U CN204163917U (en) | 2014-09-04 | 2014-09-04 | A kind of supporting structure of Hydraulic generator pilot bearing frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204163917U true CN204163917U (en) | 2015-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420507919.5U Active CN204163917U (en) | 2014-09-04 | 2014-09-04 | A kind of supporting structure of Hydraulic generator pilot bearing frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204163917U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740743A (en) * | 2017-11-06 | 2018-02-27 | 浙江富春江水电设备有限公司 | The frame in radial supporting construction and adjusting method of large-scale pumped storage power unit |
| CN113531034A (en) * | 2021-07-14 | 2021-10-22 | 哈尔滨电机厂有限责任公司 | Elastic device for upper frame of generator motor |
| CN113922554A (en) * | 2021-09-08 | 2022-01-11 | 湖南云箭集团有限公司 | Elastic supporting device of vertical hydraulic generator |
-
2014
- 2014-09-04 CN CN201420507919.5U patent/CN204163917U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740743A (en) * | 2017-11-06 | 2018-02-27 | 浙江富春江水电设备有限公司 | The frame in radial supporting construction and adjusting method of large-scale pumped storage power unit |
| CN113531034A (en) * | 2021-07-14 | 2021-10-22 | 哈尔滨电机厂有限责任公司 | Elastic device for upper frame of generator motor |
| CN113531034B (en) * | 2021-07-14 | 2022-08-16 | 哈尔滨电机厂有限责任公司 | Elastic device for upper frame of generator motor |
| CN113922554A (en) * | 2021-09-08 | 2022-01-11 | 湖南云箭集团有限公司 | Elastic supporting device of vertical hydraulic generator |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |