CN201250847Y - Radial thrust block type bearing - Google Patents
Radial thrust block type bearing Download PDFInfo
- Publication number
- CN201250847Y CN201250847Y CNU2008202000148U CN200820200014U CN201250847Y CN 201250847 Y CN201250847 Y CN 201250847Y CN U2008202000148 U CNU2008202000148 U CN U2008202000148U CN 200820200014 U CN200820200014 U CN 200820200014U CN 201250847 Y CN201250847 Y CN 201250847Y
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- CN
- China
- Prior art keywords
- bearing
- bearing support
- oil
- thrust
- forward thrust
- 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.)
- Expired - Lifetime
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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
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
Abstract
The utility model discloses a radial thrust block type bearing, which relates to the structure form of the pedestal bearing of a shaft-extension tubular type horizontal hydraulic generator. The bearing comprises a bearing block, a bearing body, a positive thrust pad, a reverse thrust pad, a guide bearing pad, a support bolt, a big thrust ring, a small thrust ring, an oil cover and a cooler. The bearing, which can be applied in a shaft-extension tubular type horizontal hydraulic generator set, can bear the positive and the reverse axial thrusts of a hydroturbine as well as radial force, and the radial force includes the weights of a turbine runner and a generator rotor and the magnetic pull of the generator. The design and development of the radial thrust block type bearing are applicable to a low-head, large-flow shaft-extension tubular type hydraulic generator set, the cooling effect is good, and the temperature rise is low; the whole set of shaft-extension tubular type hydraulic generator set has a compact structure and can be conveniently installed and maintained; the generator set occupies little space and requires less investment; and the generator set can output large force and is efficient.
Description
Technical field
The utility model relates to a kind of pedestal bearing, relates in particular to a kind of radial thrust pedestal bearing.
Background technique
At present, the radial thrust pedestal bearing is widely used in Shaft-extension Tubular Type Hydraulic Generator Set, bearing had not only born the positive and negative end thrust but also the bearing radial force of water turbine, radial force comprises the weight of rotary wheel of water turbine, generator amature and the magnetic pull of generator, mechanical loss is big, temperature rise, so bearing lubrication oil supply system employing pressure filling is lubricated or oil ring, food tray and pressure filling are composite lubricated, could satisfy the operating conditions requirement of radial thrust pedestal bearing.The shortcoming of this structure is as follows:
1. Lubricating-oil Station, gravity tank be must increase and oil pipe, power station oil-way system complexity are communicated with.
2. cost height.
Summary of the invention
The purpose of this utility model is the shortcoming that overcomes traditional radial thrust pedestal bearing, and a kind of radial thrust pedestal bearing of new lubricant oil self-loopa is provided.
The technical solution of the utility model is as follows:
A kind of radial thrust pedestal bearing, it comprises bearing support, bearing support, guide bearing block, oily cover, cooler, forward thrust bearing shoe valve, a stud, forward Thrust ring, deboost ring and deboost watt.It is characterized in that described bearing support is positioned at bearing support central authorities, bearing support periphery left end is provided with the logical oil groove of annular, and the middle part of logical oil groove is provided with the radial equipartition oil inlet hole, and the bearing support left side is provided with the axially screw of uniform stud; Described forward thrust bearing shoe valve is positioned at the left side of bearing support, and radially circumference evenly distributes, and leaves the gap between every watt; Described stud correspondence is assemblied in the pillar screw of bearing support, and a stud left end supports thrust bearing shoe valve; Described guide bearing block is positioned at bearing support inside, and the right-hand member end face is a deboost watt; Described forward Thrust ring is positioned at the left end of bearing support, and its cylindrical is provided with bucket shape band oil groove; Described deboost ring is positioned at the right-hand member of bearing support, the axial clearance 0.5～1mm of itself and deboost watt; Described oil cover is positioned at the left end of bearing support, and the oil cover is that two chambeies are formed, and its left chamber surrounds the forward Thrust ring, the lower end is provided with oil inlet pipe, and the upper end is provided with oil outlet, and its right chamber surrounds forward Thrust ring, forward thrust bearing shoe valve, bearing support, top is provided with out oil groove, is provided with oil channel between two chambeies; Described bearing support lower end is provided with cooler, and cooler is cylindrical, and is provided with into water, outlet pipe; Described forward Thrust ring, oily cover, bearing support, bearing support, guide bearing block, cooler and lubricant oil are formed the oil circuit self-circulation system; Described radial thrust pedestal bearing is provided with temperature measuring element, measures lubricant oil, forward thrust bearing shoe valve and guide bearing block temperature respectively.
Described bearing support is that the cylndrical surface cooperates with the fitting surface of bearing support.
Described bearing support is that sphere cooperates with the fitting surface of bearing support.
The material matrix of described guide bearing block and forward thrust bearing shoe valve adopts ZG230-450, and bearing metal adopts ChShSb11-6.
Described cooler is made by Cu-Al fins sheet pipe.
Described forward Thrust ring and deboost ring all adopt the technology of hot jacket to be assemblied in the rotating shaft.
The utility model has following advantage compared with prior art:
1. the radial thrust pedestal bearing of lubricant oil self-loopa, compact structure, oil circuit is simple.
2. good cooling results, bearing temperature rise is low, satisfies the requirement of hydraulic generator machine bearing operating conditions.
3. the hydraulic generator unit need not dispose the outer oil supply system that Lubricating-oil Station, gravity tank promptly are communicated with oil pipe, and cost is low.
4. the radial thrust pedestal bearing is installed, safeguards simple, convenient.
Description of drawings
Fig. 1 is that master of the present utility model looks sectional view;
Fig. 2 is that sectional view is looked on a left side of the present utility model;
Fig. 3 is a forward Thrust ring plan view of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
Among Fig. 1, Fig. 2 and Fig. 3, the utility model is made up of bearing support 1, oil cover 2, forward Thrust ring 3, forward thrust bearing shoe valve 4, a stud 5, bearing support 6, guide bearing block 7, deboost watts 8, deboost ring 9 and cooler 10.Bearing support 1 splendid attire lubricant oil 11, the material that bearing support 1 adopts is HT200,1 fen upper and lower half of bearing support makes, be connected in aggregates with bolt 25 with nut 26, the first half is provided with oil hole 12 and viewing window 13, and before the startup of unit, lubricant oil 11 injects guide bearing block 7 from oil hole 12, avoid guide bearing block 7 and forward thrust bearing shoe valve 4 when starting, dry friction to take place, damage bearing metal; Viewing window 13 adopts the transparent plexiglass plate of thickness 3mm to make, and whether observation oil circulation and oil mass be sufficient when being beneficial to unit operation; Bearing support 1 lower half portion two chambeies cast, and epicoele is deep fat chamber 14, and cavity of resorption is cooling oil pocket 15, are equipped with and are cast with logical hydraulic fluid port 16 between cooler 10, two chambeies, and deep fat flows into 15 coolings of cooling oil pocket from logical hydraulic fluid port 16.Bearing support 6 is positioned at the central interior of bearing support 1, its left end periphery is provided with the logical oil groove 17 of annular, the middle part of logical oil groove 17 is provided with radial equipartition oil inlet hole 18, bearing support 6 left sides are provided with stud 5 screw that axially evenly distribute, the cooperation of bearing support 6 and bearing support 1 can adopt the cylndrical surface to cooperate, and can also adopt sphere to cooperate; Prop up the corresponding screw that stud 5 is positioned at bearing support 6, stud 5 a left ends supporting forward thrust bearing shoe valve 4 by adjusting the axial length of a stud 5, guarantees that the axially loaded of every forward thrust bearing shoe valve 4 is even; Forward thrust bearing shoe valve 4 is positioned at bearing support 6 left sides, and radially circumference evenly distributes, and bears the end thrust from forward Thrust ring 4, leaves the gap between every watt; Guide bearing block 7 is positioned at bearing support 6 inside, it bears the rotor of hydraulic generator unit, the weight and the electromagnetic force of runner, guide bearing block 7 right-hand members are provided with deboost watts 8, when unit operation, deboost watts 8 is 0.5～1mm with the axial distance of deboost ring 9, do not rub, when compressor emergency shutdown, deboost watt 8 end thrusts of bearing of short duration deboost ring 9; Forward Thrust ring 4 is positioned at the left end of bearing support 6, and its cylindrical is provided with the band oil groove 19 of bucket shape, and the rotation of rotor drives 3 rotations of forward Thrust ring, and the band oil groove 19 of bucket shape drives lubricant oil 11 and carries from lower to upper; Oil cover 2 is positioned at the left end of bearing support 6, and two chambeies were formed about it was divided into, and left chamber surrounds forward Thrust ring 3, and the lower end is provided with oil inlet pipe 20, and the upper end is provided with oil outlet 21; The right chamber of oil cover 2 surrounds forward Thrust ring 3, forward thrust bearing shoe valve 4 and bearing support 6, about be provided with oil channel 22 between two chambeies, lubricant oil 11 flows to right chamber from left chamber, top, right chamber is provided with out oil groove 23; Bearing support 1 lower end is provided with cooler 10, and cooler 10 is cylindrical, and is provided with into water, outlet pipe 25; Deboost ring 9 is positioned at the right-hand member of bearing support 6, shuts down bearing axial pushing force at the hydraulic generator unit; Bearing support 1, oil cover 2, forward Thrust ring 3, forward thrust bearing shoe valve 4, bearing support 6, guide bearing block 7, deboost watts 8, deboost ring 9, cooler 10 and lubricant oil 11 are formed the oil circuit self-circulation systems; The radial thrust pedestal bearing is provided with resistance thermometer 24, measures lubricant oil 11, forward thrust bearing shoe valve 4 and guide bearing block temperature 7 respectively.
During the operation of hydraulic generator unit rated speed, forward thrust bearing shoe valve 4 of the present utility model bears the end thrust from Thrust ring 3, forward Thrust ring 3 rotates synchronously with rotor, under the drive of its bucket shape band oil groove 19, lubricant oil 11 enters oil cover 2 from oil inlet pipe 20, be transported to oil cover top, 2 left chamber oil outlet 21 in semi-enclosed space, at centrifugal force, the work of normal force has down, enter oil outlet 21, flow into right chamber by oil channel 22, flow to the logical oil groove 17 of bearing support 6 annulars, oil inlet hole 18 arrives at oil cover 2 right chambeies at last, and be full of right chamber, lubricate forward thrust bearing shoe valve 4, guide bearing block 7 and deboost watts 8.Part lubricant oil 11 lubricated forward thrust bearing shoe valves 4, along with the continuous inflow of lubricant oil 11 and the throwing effect of getting rid of of forward Thrust ring 3 rotations are descended, parts of lubricating oil 11 flows out from the oil outlet 23 that oil covers upper end, 2 right chamber, flow into the deep fat chamber 14 of bearing support 1, logical hydraulic fluid port 16, cooling oil pocket 15, reenter oil inlet pipe 20 after the cooling; Remaining part lubricant oil 11 enters guide bearing block 7, and lubricated guide bearing block 7 flows out from deboost ring 9 then, flows into the deep fat chamber 14 of bearing support 1, logical hydraulic fluid port 16, cooling oil pocket 15, reenters oil inlet pipe 20 after the cooling.Go round and begin again, guarantee that the radial thrust pedestal bearing moves under the temperature that allows.When the hydraulic generator unit was shut down, the active force of hydraulic thrust was opposite, and deboost watt 8 thrusts of bearing deboost ring 9 are less than 10 minutes if having time, and lubricant oil 11 flows into deboosts watts 8 by guide bearing block 7, cooling guide bearing block 7 and deboost watts 8.Because of frictional heating, the temperature of the lubricant oil 11 that flow out lubricated back is higher, and under the cooling of cooling water, heat is taken away by cooling water when flowing through cooler 10, thereby the temperature of lubricant oil 11 is reduced rapidly, guarantees that lubricant oil 11 can satisfy the requirement of unit operation.
Claims (6)
1. radial thrust pedestal bearing, it comprises bearing support, bearing support, guide bearing block, oily cover, cooler, forward thrust bearing shoe valve, a stud, forward Thrust ring, deboost ring and deboost watt; It is characterized in that described bearing support is positioned at bearing support central authorities, bearing support periphery left end is provided with the logical oil groove of annular, and the middle part of logical oil groove is provided with the radial equipartition oil inlet hole, and the bearing support left side is provided with the axially screw of uniform stud; Described forward thrust bearing shoe valve is positioned at the left side of bearing support, and radially circumference evenly distributes, and leaves the gap between every watt; Described stud is positioned in the screw of bearing support, and a stud left end supports thrust bearing shoe valve; Described guide bearing block is positioned at bearing support inside, and the right-hand member end face is a deboost watt; Described forward Thrust ring is positioned at the left end of bearing support, and its cylindrical is provided with bucket shape band oil groove; Described deboost ring is positioned at the right-hand member of bearing support, the axial clearance 0.5～1mm of itself and deboost watt; Described oil cover is positioned at the left end of bearing support, and the oil cover is that two chambeies are formed, and its left chamber surrounds the forward Thrust ring, the lower end is provided with oil inlet pipe, and the upper end is provided with oil outlet, and its right chamber surrounds forward Thrust ring, forward thrust bearing shoe valve, bearing support, top is provided with out oil groove, about be provided with oil channel between two chambeies; Described bearing support lower end is provided with cooler, and cooler is cylindrical, and is provided with into water, outlet pipe; Described forward Thrust ring, oily cover, bearing support, bearing support, guide bearing block, cooler and lubricant oil are formed the oil circuit self-circulation system; Described radial thrust pedestal bearing is provided with temperature measuring element, measures lubricant oil, forward thrust bearing shoe valve and guide bearing block temperature respectively.
2. radial thrust pedestal bearing according to claim 1 is characterized in that the bearing support and the fitting surface of bearing support are that the cylndrical surface cooperates.
3. radial thrust pedestal bearing according to claim 1 is characterized in that the bearing support and the fitting surface of bearing support are that sphere cooperates.
4. radial thrust pedestal bearing according to claim 1 is characterized in that the material matrix of guide bearing block and forward thrust bearing shoe valve adopts ZG230-450, and bearing metal adopts ChShSb11-6.
5. radial thrust pedestal bearing according to claim 1 is characterized in that cooler made by Cu-Al fins sheet pipe.
6. radial thrust pedestal bearing according to claim 1 is characterized in that forward Thrust ring and deboost ring all adopt the technology of hot jacket to be assemblied in the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202000148U CN201250847Y (en) | 2008-09-01 | 2008-09-01 | Radial thrust block type bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202000148U CN201250847Y (en) | 2008-09-01 | 2008-09-01 | Radial thrust block type bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201250847Y true CN201250847Y (en) | 2009-06-03 |
Family
ID=40746520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202000148U Expired - Lifetime CN201250847Y (en) | 2008-09-01 | 2008-09-01 | Radial thrust block type bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201250847Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230441A (en) * | 2011-04-15 | 2011-11-02 | 重庆云河水电股份有限公司 | Runner-plate pump self-lubricating radial thrust bearing |
| CN102410242A (en) * | 2010-09-25 | 2012-04-11 | 太仓顺达磁力泵科技有限公司 | Sliding bearing for magnetic pumps and clearance compensation structure thereof |
| CN103206335A (en) * | 2013-04-07 | 2013-07-17 | 水利部农村电气化研究所 | Horizontal mixed-flow water turbine generator set |
| CN114542593A (en) * | 2021-04-07 | 2022-05-27 | 潮州市汇能电机有限公司 | Combined seat type bearing |
-
2008
- 2008-09-01 CN CNU2008202000148U patent/CN201250847Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410242A (en) * | 2010-09-25 | 2012-04-11 | 太仓顺达磁力泵科技有限公司 | Sliding bearing for magnetic pumps and clearance compensation structure thereof |
| CN102410242B (en) * | 2010-09-25 | 2014-08-20 | 太仓顺达磁力泵科技有限公司 | Sliding bearing for magnetic pumps and clearance compensation structure thereof |
| CN102230441A (en) * | 2011-04-15 | 2011-11-02 | 重庆云河水电股份有限公司 | Runner-plate pump self-lubricating radial thrust bearing |
| CN102230441B (en) * | 2011-04-15 | 2012-10-17 | 重庆云河水电股份有限公司 | Runner-plate pump self-lubricating radial thrust bearing |
| CN103206335A (en) * | 2013-04-07 | 2013-07-17 | 水利部农村电气化研究所 | Horizontal mixed-flow water turbine generator set |
| CN103206335B (en) * | 2013-04-07 | 2015-08-12 | 杭州思绿能源科技有限公司 | A kind of horizontal mixed flow turbine-generator units |
| CN114542593A (en) * | 2021-04-07 | 2022-05-27 | 潮州市汇能电机有限公司 | Combined seat type bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090603 |
|
| CX01 | Expiry of patent term |