CN113757262B - Rigid supporting structure of thrust pad - Google Patents
Rigid supporting structure of thrust pad Download PDFInfo
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- CN113757262B CN113757262B CN202111000993.9A CN202111000993A CN113757262B CN 113757262 B CN113757262 B CN 113757262B CN 202111000993 A CN202111000993 A CN 202111000993A CN 113757262 B CN113757262 B CN 113757262B
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- supporting
- groove
- inner sleeve
- spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/02—Rigid support of bearing units; Housings, e.g. caps, covers in the case of sliding-contact bearings
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention discloses a rigid supporting structure of a thrust pad, which comprises a supporting base (1), wherein a group of uniformly distributed supporting components (2) are arranged above the supporting base (1), a supporting pad (3) is arranged above the supporting components (2), and the thrust pad is positioned above the supporting pad (3); the supporting assembly (2) comprises a bottom spring module (4) fixed on the supporting base (1), an upper supporting adjusting module (5) is arranged above the bottom spring module (4), a clamping block (6) is arranged at the upper end of the upper supporting adjusting module (5), and a clamping groove (7) matched with the clamping block (6) is arranged at the bottom of the supporting tile (3). The invention has the characteristic of effectively ensuring the uniform stress of the tile surface.
Description
Technical Field
The invention relates to a thrust pad for a thrust bearing of a hydropower station, in particular to a rigid support structure of the thrust pad.
Background
The hydropower station is called a pumped storage type hydropower station, which utilizes the electric power in the power grid during the load valley, pumps water from a lower reservoir to an upper reservoir for energy storage, and discharges water to return to the lower reservoir for power generation when the power grid is loaded at the peak. The pumped storage power station has several characteristics in that the pumped storage power station is a power plant and a user, and the valley filling function of the pumped storage power station is not possessed by any other type of power plant; it is quick in starting, flexible and reliable in operation, and besides the peak regulation and valley filling, it is also suitable for bearing the tasks of frequency modulation, phase regulation and accident standby, etc.. At present, the pumped storage power stations established in China play an important role in respective power grids, so that the total fuel of the power grids is saved, the cost of the power grids is reduced, and the reliability of the power grids is improved. The function of the pumped-storage power station in the system is described in terms of the operation of several power stations. Compared with other conventional hydropower stations, the pumped storage power station and the conventional hydropower station have completely different structures of the hydraulic turbine units. The derivation bearing is a combined bearing integrating a thrust bearing and a lower guide bearing, is widely applied to equipment such as a water pump, a steam turbine, a water turbine, a generator and the like, and mainly has the main functions of balancing the axial thrust of a shaft or a rotor and adjusting the clearance between the shafts, so that the axial clearance between the dynamic and static parts is ensured to be within a reasonable range. The thrust bearing mainly bears the weight of the rotating part of the whole unit, and the lower guide bearing bears radial electromagnetic unbalanced force and mechanical unbalanced force. The thrust bearing comprises a thrust bush and a support thereof, an oil guide plate, a stress adjusting bolt, a lower guide bush and a support thereof, a bearing oil circulation pipeline and an oil cooler thereof and the like. The existing thrust shoe generally adopts a rigid support structure, the thrust shoe is placed on a rigid support screw, and a screw head is a spherical surface, so that the thrust shoe can deflect freely. The rigid support is a point support, generally the geometric center of the thrust pad. For a long-term running water pumping energy storage unit, the power generation direction and the water pumping direction are opposite, the working condition is complex compared with that of a conventional hydropower station, and long-term forward and reverse rotation running may cause abrasion, so that the tile surface is unevenly stressed, and therefore the tile surface needs to be regularly replaced, the replacement operation is troublesome, the normal running of the unit is influenced, and the replacement cost is increased. Therefore, the prior art has the problem that the tile surface is easy to be stressed unevenly after being used for a long time.
Disclosure of Invention
The invention aims to provide a rigid support structure for a thrust pad. The invention has the characteristic of effectively ensuring the uniform stress of the tile surface.
The technical scheme of the invention is as follows: a thrust pad rigid support structure comprises a support base, wherein a group of uniformly distributed support assemblies are arranged above the support base, support pads are arranged above the support assemblies, and thrust pads are positioned above the support pads; the supporting assembly comprises a bottom spring module fixed on the supporting base, an upper supporting adjusting module is arranged above the bottom spring module, a clamping block is arranged at the upper end of the upper supporting adjusting module, and a clamping groove matched with the clamping block is formed in the bottom of the supporting tile.
In the rigid supporting structure for the thrust bearing shoes, the supporting base is provided with an installation groove with a T-shaped section, and the installation groove is provided with a bolt installation hole.
In the rigid support structure for the thrust bearing, the bottom spring module comprises a mounting and fixing bottom plate matched with the mounting groove, an outer sleeve is arranged above the mounting and fixing bottom plate, an inner sleeve is arranged in the outer sleeve, and an adjusting spring is arranged between the inner sleeve and the outer sleeve; a group of uniformly distributed strip-shaped insertion grooves are formed in the upper part of the inner wall surface of the outer sleeve, a rotating groove is formed in one side of the bottom of each strip-shaped insertion groove, and a vertical adjusting groove is formed below each rotating groove; and a sliding block matched with the strip-shaped insertion groove and the vertical adjusting groove is arranged on the outer wall surface of the inner sleeve.
In the rigid support structure for the thrust pad, the upper support adjusting module comprises an upper movable support rod and a lower movable support rod which are arranged above the top wall of the inner sleeve, the upper end of the upper movable support rod and the lower movable support rod are provided with conical parts, the bottom of the upper movable support rod and the lower movable support rod is provided with a support frame which is arranged below the top wall of the inner sleeve, two ends of the support frame are provided with guide rods, the bottom of each guide rod is provided with a baffle disc, and an inner spring which is sleeved on each guide rod is arranged between each baffle disc and the support frame; an external spring sleeved on the upper and lower movable supporting rods is arranged between the conical piece and the top wall of the inner sleeve.
In the rigid support structure for the thrust pad, the fixture block has a tooth-shaped structure.
Compared with the prior art, the invention consists of a supporting base, a supporting component and a bearing shoe, wherein the supporting component consists of a bottom spring module, an upper supporting and adjusting module and a clamping block, and point supporting is changed into surface supporting, so that the stress area can be increased, and the stress of the thrust shoe is uniform; simultaneously, through mutually supporting between bottom spring module and the upper portion support adjusting module to can guarantee that the distance between support tile and the thrust tile keeps invariable, and then can effectively prevent the emergence of the inhomogeneous phenomenon of thrust tile atress because of wearing and tearing appear, further improve the atress homogeneity of thrust tile. By adopting the structure of the invention, the service life of the thrust pad can be effectively prolonged, the long-time normal operation of the unit can be ensured, the thrust pad does not need to be replaced, and the maintenance cost can be reduced. In addition, the structure of the invention can effectively solve the problem of unbalanced stress caused by the inconsistency of the water pumping direction and the power generation direction. In conclusion, the invention has the characteristic of effectively ensuring the uniform stress of the tile surface.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
figure 3 is a cross-sectional view of the outer sleeve.
The labels in the figures are: 1-supporting base, 2-supporting component, 3-supporting tile, 4-bottom spring module, 5-upper supporting adjusting module, 6-clamping block, 7-clamping groove, 101-installing groove, 401-installing fixed bottom plate, 402-outer sleeve, 403-inner sleeve, 404-adjusting spring, 405-strip-shaped inserting groove, 406-rotating groove, 407-vertical adjusting groove, 408-sliding block, 501-up and down movable supporting rod, 502-conical piece, 503-supporting frame, 504-guiding rod, 505-stopping disc, 506-inner spring and 507-outer spring.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
Examples are given. A thrust tile rigid supporting structure is shown in figures 1 to 3 and comprises a supporting base 1, a group of uniformly distributed supporting assemblies 2 are arranged above the supporting base 1, supporting tiles 3 are arranged above the supporting assemblies 2, and thrust tiles are located above the supporting tiles 3; the supporting component 2 comprises a bottom spring module 4 fixed on the supporting base 1, an upper supporting adjusting module 5 is arranged above the bottom spring module 4, a clamping block 6 is arranged at the upper end of the upper supporting adjusting module 5, and a clamping groove 7 matched with the clamping block 6 is arranged at the bottom of the supporting tile 3.
The supporting base 1 is provided with a mounting groove 101 with a T-shaped section, and the mounting groove 101 is provided with a bolt mounting hole.
The bottom spring module 4 comprises a mounting and fixing bottom plate 401 matched with the mounting groove 101, an outer sleeve 402 is arranged above the mounting and fixing bottom plate 401, an inner sleeve 403 is arranged in the outer sleeve 402, and an adjusting spring 404 is arranged between the inner sleeve 403 and the outer sleeve 402; a group of uniformly distributed strip-shaped insertion grooves 405 are formed in the upper portion of the inner wall surface of the outer sleeve 402, a rotating groove 406 is formed in one side of the bottom of each strip-shaped insertion groove 405, and a vertical adjusting groove 407 is formed below each rotating groove 406; the outer wall of the inner sleeve 403 is provided with a slide block 408 which is matched with the strip-shaped insertion groove 405 and the vertical adjusting groove 407.
The upper support adjusting module 5 comprises an upper movable support rod 501 and a lower movable support rod 501 which are arranged above the top wall of the inner sleeve 403, the upper end of the upper movable support rod 501 is provided with a conical piece 502, the bottom of the upper movable support rod 501 is provided with a support frame 503 which is positioned below the top wall of the inner sleeve 403, two ends of the support frame 503 are provided with guide rods 504, the bottom of each guide rod 504 is provided with a baffle disc 505, and an inner spring 506 which is sleeved on each guide rod 504 is arranged between each baffle disc 505 and each support frame 503; an external spring 507 sleeved on the upper and lower movable support rods 501 is arranged between the conical member 502 and the top wall of the inner sleeve 403.
The fixture block 6 is in a tooth-shaped structure.
An annular limiting groove is further formed in the inner bottom surface of the outer sleeve, and the adjusting spring is placed in the annular limiting groove.
The roof of inner skleeve is equipped with the perforating hole.
And the clamping block is provided with a bolt hole.
Installation process of bottom spring module: firstly, fixing the mounting and fixing bottom plate with the outer sleeve, and then placing the adjusting spring into the annular limiting groove; then, mounting the upper support adjusting module on the inner sleeve, and inserting the inner sleeve into the outer sleeve to obtain a support assembly; then, a plurality of supporting components are uniformly distributed and fixed on the supporting base by using bolts, and finally, the clamping blocks are fixed with the clamping grooves at the bottom of the supporting tile by using the bolts.
The insertion process of the inner sleeve is as follows: the slider cooperatees with the bar insertion groove earlier, and the slider removes to the bottom along the bar insertion groove, then rotates the slider to the rotation groove region, and the inner skleeve receives gravity extrusion back in the later stage, can slide along vertical adjustment tank, and the bottom surface of inner skleeve can contact with adjusting spring, and after taking place wearing and tearing, adjusting spring will exert oneself in the support tile, guarantees that distance keeps invariable between support tile and the thrust tile.
The supporting frame is provided with a guide hole matched with the guide rod.
The mounting process of the upper support adjusting module: fixing a guide rod on the lower surface of the top wall of the inner sleeve, installing a support frame on the guide rod, sleeving an inner spring, and fixing a baffle disc at the bottom end of the guide rod to complete installation of a lower structure; then the external spring is placed above the top wall of the inner sleeve, the bottom of the up-and-down movable supporting rod is inserted into the through hole and contacts with the supporting frame to complete the sleeving of the external spring,
the support frame is provided with a threaded hole, and the bottom end of the upper and lower movable support rods is provided with a threaded structure matched with the support frame.
The upper end of the upper and lower movable supporting rods is also provided with a threaded column, and the bottom surface of the clamping block is provided with an internal threaded column structure.
Claims (3)
1. A thrust pad rigid support structure characterized in that: the device comprises a supporting base (1), wherein a group of uniformly distributed supporting components (2) are arranged above the supporting base (1), supporting shoes (3) are arranged above the supporting components (2), and thrust shoes are positioned above the supporting shoes (3); the supporting assembly (2) comprises a bottom spring module (4) fixed on the supporting base (1), an upper supporting and adjusting module (5) is arranged above the bottom spring module (4), a clamping block (6) is arranged at the upper end of the upper supporting and adjusting module (5), and a clamping groove (7) matched with the clamping block (6) is arranged at the bottom of the supporting tile (3);
the supporting base (1) is provided with an installation groove (101) with a T-shaped section, and the installation groove (101) is provided with a bolt installation hole;
the bottom spring module (4) comprises a mounting and fixing bottom plate (401) matched with the mounting groove (101), an outer sleeve (402) is arranged above the mounting and fixing bottom plate (401), an inner sleeve (403) is arranged in the outer sleeve (402), and an adjusting spring (404) is arranged between the inner sleeve (403) and the outer sleeve (402); a group of uniformly distributed strip-shaped insertion grooves (405) are formed in the upper portion of the inner wall surface of the outer sleeve (402), a rotating groove (406) is formed in one side of the bottom of each strip-shaped insertion groove (405), and a vertical adjusting groove (407) is formed below each rotating groove (406); and the outer wall surface of the inner sleeve (403) is provided with a sliding block (408) matched with the strip-shaped insertion groove (405) and the vertical adjusting groove (407).
2. The thrust pad rigid support structure of claim 1, wherein: the upper support adjusting module (5) comprises an upper movable support rod and a lower movable support rod (501) which are arranged above the top wall of the inner sleeve (403), the upper end of the upper movable support rod and the lower movable support rod (501) is provided with a conical piece (502), the bottom of the upper movable support rod and the lower movable support rod (501) is provided with a support frame (503) which is positioned below the top wall of the inner sleeve (403), two ends of the support frame (503) are provided with guide rods (504), the bottom of each guide rod (504) is provided with a baffle disc (505), and an inner spring (506) which is sleeved on each guide rod (504) is arranged between each baffle disc (505) and each support frame (503); an external spring (507) sleeved on the upper and lower movable supporting rods (501) is arranged between the conical piece (502) and the top wall of the inner sleeve (403).
3. The thrust pad rigid support structure of claim 1, wherein: the fixture block (6) is of a tooth-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111000993.9A CN113757262B (en) | 2021-08-30 | 2021-08-30 | Rigid supporting structure of thrust pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111000993.9A CN113757262B (en) | 2021-08-30 | 2021-08-30 | Rigid supporting structure of thrust pad |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113757262A CN113757262A (en) | 2021-12-07 |
| CN113757262B true CN113757262B (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111000993.9A Active CN113757262B (en) | 2021-08-30 | 2021-08-30 | Rigid supporting structure of thrust pad |
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| Country | Link |
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| CN (1) | CN113757262B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69303085T3 (en) * | 1992-03-19 | 2003-06-12 | Hitachi Ltd | Water engine |
| CN201474835U (en) * | 2009-06-23 | 2010-05-19 | 郭新建 | Supporting structure of thrust bearing |
| CN208073667U (en) * | 2018-01-31 | 2018-11-09 | 湖南云箭集团有限公司 | A kind of hydraulic generator thrust bearing and its bearing support structure |
| CN208089453U (en) * | 2018-04-11 | 2018-11-13 | 哈尔滨电机厂有限责任公司 | The resilient support with tray suitable for hydrogenerator |
| CN108915955B (en) * | 2018-06-04 | 2020-02-28 | 太原重型机械集团工程技术研发有限公司 | Elastic supporting device of wind turbine generator |
| CN110173388A (en) * | 2019-05-24 | 2019-08-27 | 广西桂冠电力股份有限公司 | Guide Bearing for Vertical Hydrogenerator Sets watt seat supports device |
| CN211648354U (en) * | 2019-12-31 | 2020-10-09 | 陶国 | Novel thrust tile tray |
| CN213684372U (en) * | 2020-12-02 | 2021-07-13 | 哈尔滨电机厂有限责任公司 | Thrust bearing supporting structure of vertical hydraulic generator |
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2021
- 2021-08-30 CN CN202111000993.9A patent/CN113757262B/en active Active
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| CN113757262A (en) | 2021-12-07 |
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