CN104948739A - Oil-leakage-prevention oil-mist-prevention structure for integral pushing and guiding bearing - Google Patents
Oil-leakage-prevention oil-mist-prevention structure for integral pushing and guiding bearing Download PDFInfo
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- CN104948739A CN104948739A CN201510338120.7A CN201510338120A CN104948739A CN 104948739 A CN104948739 A CN 104948739A CN 201510338120 A CN201510338120 A CN 201510338120A CN 104948739 A CN104948739 A CN 104948739A
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- oil
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- thrust collar
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Classifications
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention relates to an oil-leakage-prevention oil-mist-prevention structure for an integral pushing and guiding bearing. The structure comprises an upper guide seal part, an oil block cylinder, a lower seal part, an inside and outside pressure communication part, an oil stabilizing face part and an oil climbing prevention device. A two-layer seal air cavity is arranged on the outer side of a sliding rotor, two oil-climbing-prevention grooves are formed in the inner side of a thrust collar, an annular sealing plate is additionally arranged at the bottom of an upper rack so as to increase windage, and three oil block rings are arranged on the upper portion of the oil block cylinder. A channel, with a high seal grade, connected with air pressure of the outside is designed so that the situation that inner side steam turbine oil is sucked out and enters the bottom of the bearing when internal pressure of a bearing chamber is too low can be prevented. Two layers of oil stabilizing plates are further arranged to well prevent the oil surface lifting phenomenon caused when the thrust collar and a lens plate rotate. The oil-leakage-prevention oil-mist-prevention structure for the integral pushing and guiding bearing of a large-thrust vertical asynchronous motor, in particular to a third-generation nuclear power seawater circulating water pump motor thrust system, and can be widely used in the nuclear power, petrochemical and seawater desalting industries.
Description
Technical field
The present invention relates to a kind of one bearing oil-leakage-prevention oil mist prevention structure of deriving.
Background technique
Large pump vertical machine is compression axial height, often need to adopt one bearing of deriving, thrust collar when High Rotation Speed outside pasta can become inclined-plane, pasta is caused to rise, the high speed turbine machine oil getting rid of oilhole extrusion on the downside of thrust collar will splash mist of oil, inside thrust collar, oil blocking barrel to swash out in inside bearing in the situation of its bias when highly not enough, in order to solve the leakage of oil that derivation shaft bearing surface is faced and the problem playing mist of oil, needs to design corresponding structure to overcome the above problems.What one of in the past deriving bearing control mist of oil often adopted is single layer sealing structure, and thrust collar is not got rid of greasy dirt and the isolation of common greasy dirt that oilhole evokes, thrust collar inside circumference direction does not prevent the groove of climbing oil simultaneously, causes sealing effect to decline.
Summary of the invention
The object of this invention is to provide a kind of one bearing oil-leakage-prevention oil mist prevention structure of deriving,
Technological scheme of the present invention is: lead hermetic unit, oil blocking barrel and lower seal part from above, inner and outer air pressure connected part, steady pasta part, anti-creep oil part form, the outer oil catch (5) of contact top guide bearing is arranged on the upper mounting plate (24) of upper leading axle bearing (10), outer oil catch (5) inner circle of contact top guide bearing and thrust collar (4) cylindrical are slidably matched, contact top guide bearing inner grease retainer (6) is arranged on the middle platform (25) of upper leading axle bearing (10), contact top guide bearing inner grease retainer (6) inner circle and thrust collar (4) cylindrical are slidably matched, thrust collar (4) and axle (9) through interference mode hot jacket together with, oil blocking barrel (1) is welded on upper spider (14), three flinger ring plates (3) are equidistantly put and are welded on oil blocking barrel (1), two pieces seals half ring flat-plate (2) and puts together on upper spider (14), seal half ring flat-plate (2) and axle (19) Spielpassung, thrust collar (4) bottom radial direction has multiplely gets rid of oilhole (13), thrust collar (4) top radial direction has multiple vent (11), thrust collar (4) inner side has two oil resistance grooves (12) successively at the below circumferencial direction of vent (11), thrust collar (4) inner side is provided with right angle transition pillow block (16), right angle transition pillow block (16) in the horizontal direction and between flinger ring plate (3) with gap, right angle transition pillow block (16) between vertical direction and flinger ring plate (3) with gap, right angle transition pillow block (16) in the horizontal direction and between oil blocking barrel (1) with gap, right angle transition pillow block (16) between vertical direction and oil blocking barrel (1) with gap, upper leading axle bearing (10) circumference has 8 intercommunicating pores (20), upper leading axle bearing (10) radial direction has 4 air chamber attachment holes (15), upper leading axle bearing (10) is upper installs two pieces vent filter (9), oil cooler (17) puts together on upper spider (14), upper steady oil ring plate (7) is arranged on oil cooler (17) top, in steady oil ring plate (8) put together on upper spider (14) middle part, bearing chamber steam turbine oil (18) by upper steady oil ring plate (7) and in steady oil ring plate (8) be divided into two parts, the outer oil catch (5) of contact top guide bearing is completed by sealing gasket (22) and Stamping Steel Ribbon (21) and seals with the connection of upper leading axle bearing (10), contact top guide bearing inner grease retainer (6) is completed by sealing gasket (22) and Stamping Steel Ribbon (21) and seals with the connection of upper leading axle bearing (10), upper leading axle bearing (10) completes to be connected with upper spider (14) by double-sealing (23) and seals.
One of deriving bearing oil-leakage-prevention oil mist prevention structure is mainly divided into leads hermetic unit, oil blocking barrel and lower seal part, inner and outer air pressure connected part, steady pasta part, anti-creep oil part, amounts to five funtion parts.On lead hermetic unit be responsible for suppress steam turbine oil splash or mist of oil; Oil blocking barrel and lower seal part are responsible for stoping steam turbine oil to climb out of inside thrust collar; The air pressure that inner and outer air pressure connected part is responsible in bearing chamber communicates with outside barometric pressure; Steady pasta part is responsible for stabilizing rotary component and is caused the pasta gradient, steady to ensure the pasta of bearing chamber; Anti-creep oil part is responsible for stoping steam turbine oil to climb out of inside thrust collar further.
On lead hermetic unit mainly the negative steam turbine oil that suppresses splash or mist of oil.Thrust collar (4) is when bearing chamber steam turbine oil (18) high speed rotates, the getting rid of oilhole (13) steam turbine oil sent at a high speed will be formed spilled oil of thrust collar (4) downside, being touched property of steam turbine oil top guide bearing inner grease retainer (6) splash blocks.Because thrust collar (4) rotates in bearing chamber steam turbine oil (18) high speed, a small amount of mist of oil can be generated for a long time in bearing chamber, mist of oil enters in the outer space between oil catch (5) and contact top guide bearing inner grease retainer (6) of contact top guide bearing, within mist of oil is blocked in the outer oil catch (5) of contact top guide bearing further through air chamber attachment hole (15).
Oil blocking barrel and lower seal part are responsible for stoping steam turbine oil to climb out of from thrust collar (4) inner side.When axle (19) is eccentric a little relatively for oil blocking barrel (1), steam turbine oil can be made at narrow space to form the oil film swashed.By setting gradually three roads flinger ring plate (3) on the top of oil blocking barrel (1), steam turbine oil is stoped to swash and splash, all have 4 small sircle holes of circumference uniform distribution simultaneously at every part flinger ring plate (3) circumferencial direction, the steam turbine oil swashed is refluxed.Flinger ring plate (3) keeps less gap with thrust collar (4) right angle, bottom transition pillow block (16) level and vertical direction.In upper spider (14) bottom, the two pieces of closing is sealed half ring flat-plate (2), by controlling the comparatively small―gap suture of itself and axle (9), add from oil blocking barrel (1) inner to windage in stator cavity, inhibit the negative pressure because existing in stator cavity and then the steam turbine oil resorption that causes to go out the high point of oil blocking barrel (1).
The air pressure that inner and outer air pressure connected part is responsible in bearing chamber communicates with outside barometric pressure.Have 8 vents (11) in the top radial direction of thrust collar (4), ensure that the air pressure of thrust collar (4) inner and outer is equal; Upper leading axle bearing (10) radial direction has 4 air chamber attachment holes (15), ensure that thrust collar (4) external atmospheric pressure is equal with upper leading axle bearing (10) air pressure inside; Upper leading axle bearing (10) is upper installs two pieces vent filter (9), ensure that upper leading axle bearing (10) air pressure inside phase is equal with upper leading axle bearing (10) external pressure; And then ensure that the air pressure of thrust collar (4) inner side is equal with upper leading axle bearing (10) external pressure all the time, inhibit steam turbine pasta to climb.
Steady pasta part is responsible for stabilizing rotary component and is caused the pasta gradient, steady to ensure the pasta of bearing chamber.Install steady oil ring plate (7) at oil cooler (17) top, upper steady oil ring plate (7) is slightly lower than steam turbine pasta, can suppress preferably to result in pasta because thrust collar (4) rotates.Steady oil ring plate (8) in installing in the middle of oil cooler (17), bearing chamber steam turbine oil (18) can be made to be divided into two parts to prevent short circuit between cold and hot oil, also can pass through layering steam turbine oil, reduce the inclination lifting of overall steam turbine pasta.
Anti-creep oil part is responsible for stoping steam turbine oil to climb out of inside thrust collar further.The oil resistance groove (12) of twice circle is provided with successively at the middle part of thrust collar (4) inner side, the spacing of two oil resistance grooves (12) is 30-50mm, the dark 6.5mm of oil resistance groove (12) wide 25mm, and be provided with rounded corner at oil resistance groove (12), to prevent thrust collar (4), stress is too concentrated herein.The monolateral gap of flinger ring plate (3) cylindrical of thrust collar (4) inner circle and oil blocking barrel (1) is 5mm, most last layer flinger ring plate (3) level of right angle transition pillow block (16) and the oil blocking barrel (1) of thrust collar (4) inner side and the gap of vertical direction are 10mm, and the test structure of right angle transition pillow block (16) can suppress steam turbine oil to form oil film through thrust collar (4) inner side to continue to swash better.
Derivation one bearing oil-leakage-prevention oil mist prevention structure provided by the invention, can ensure to derive one bearing under high rotating speed, high thrust operating mode, solve the problem of steam turbine oil leakage of oil and steam turbine mist of oil preferably.By arranging twice contact seal on bearing top, form mist of oil in the spilled oil effectively taken up by revolving part and bearing chamber to isolate, when guaranteeing that bearing internal external portion air pressure is equal, controlling mist of oil problem to greatest extent, improving the running environment of one bearing of deriving.
Oil-leakage-prevention oil mist prevention structure of the present invention, mainly takes 5 aspect measures.Twice contact seal is set at upper hermetic unit of leading, forms mist of oil in the spilled oil effectively taken up by revolving part and bearing chamber and isolate; In oil blocking barrel arranged outside three road, flinger ring plate can organize steam turbine oil to swash outside oil blocking barrel, divides be provided with two pieces and seal half ring flat-plate and add windage to out frame cavity inside oil blocking barrel in sealing portion; Inner and outer air pressure connected part by ensureing that the air pressure in bearing chamber communicates with the barometric pressure of outside, and then inhibits and climbs because air pressure not etc. not result in pasta; Steady pasta part is provided with twice annular oil-stabilizing plate, ensures that the pasta of bearing chamber is steady; Anti-creep oil part, by arranging right angle transition pillow block and oil resistance groove inside thrust collar, completes there is the path clustering of climbing oil.The research and development of one of deriving bearing oil-leakage-prevention oil mist prevention structure, for three generations's nuclear power station seawater Circulating water pump electric machine push system lays the foundation.
Invention thus proposes corresponding Novel structure, be applied as example, motor speed 164r/min, thrust 280T with three generations's nuclear power station circulation-water pump electric machine thrust bearing, can clockwise and anticlockwise, containing the push system of high pressure oil jack-up.
Swash with the bearing chamber steam turbine oil solving one bearing of deriving in the past, the excessive problem of mist of oil, thrust collar upper outside have employed two-layer ring packing oil catch, thrust collar upper side vents is between first layer sealed oil catch and second layer sealed oil catch, namely avoid and to get rid of oilhole outside thrust collar and send the spilled oil that oil at a high speed causes, also establish the path that inside thrust collar, barometric pressure outer with bearing communicates, respectively in centre in bearing chamber, top is provided with twice oil-stabilizing plate, and bottom upper spider, be provided with the semiorbicular insulated enclosure plate of two pieces, add the windage towards motor stator cavity, suppress steam turbine oil inside thrust collar to climb out of because of negative pressure and enter stator cavity pollution staor winding.
Accompanying drawing explanation
Fig. 1 derivation one of the present invention bearing oil-leakage-prevention oil mist prevention structural drawing
Fig. 2 is I zoomed-in view of Fig. 1
Fig. 3 is II zoomed-in view of Fig. 1
Concrete implementing measure
Fig. 1 is the derivation one bearing oil-leakage-prevention oil mist prevention structure being applicable to the vertical asynchronous motor of high thrust, hermetic unit, oil blocking barrel and lower seal part, inner and outer air pressure connected part, steady pasta part, anti-creep oil part is led from above, amount to five parts to form, wherein first three part belongs to the leakage of oil and mist of oil problem that control bearing external interface, and rear two-part are leakage of oil and the mist of oil problem of major control Bearing inner.Steam turbine oil in bearing chamber is that self-loopa uses, and is the main source of bearing leakage of oil and mist of oil.This derivation one bearing oil-leakage-prevention oil mist prevention structure is applied in large-scale vertical asynchronous motor, and motor model is YLKS7700-36, rated power 7700kW, voltage rating 10kV, rated speed 164r/min, thrust 280 tons, rated frequency 50Hz.
As shown in Figure 1, a kind of one bearing oil-leakage-prevention oil mist prevention structure of deriving, leads hermetic unit, oil blocking barrel and lower seal part, inner and outer air pressure connected part, steady pasta part, anti-creep oil part forms from above, oil blocking barrel 1 is arranged on the middle seam of upper spider 14 and completes fixing and sealing by interior outside fillet (weld), two pieces seals half ring flat-plate 2 and is fixed on bottom upper spider 14, guarantee that sealing half ring flat-plate 2 and axle 19 keep the gap of 3-5mm simultaneously, in the outer upper of oil blocking barrel 1, three flinger ring plates are installed successively, the spacing of two pieces of adjacent oil baffles 3 is 100mm, thrust collar 4 and axle complete be connected by having lacked interference, have two oil resistance grooves 12 successively to suppress to climb oil in the middle and upper part, inner side of thrust collar 4, have multiple vent 11 the top radial circumference of thrust collar 4 is uniform, to make inside thrust collar 4 and outside oil blocking barrel 1 between enclosed space, first sealing is formed within avoiding contact guide bearing inner grease retainer 6, directly outer with contact top guide bearing between oil catch 5 and contact top guide bearing inner grease retainer 6 second seal and be communicated with, indirectly ensure that and well to communicate with ambient atmosphere, right angle transition pillow block 16 is provided with in the inside upper part of thrust collar 4, right angle transition pillow block 16 suppresses mist of oil with gap in the horizontal direction and between flinger ring plate 3, right angle transition pillow block 16 suppresses to climb oil with gap between vertical direction and flinger ring plate 3, right angle transition pillow block 16 suppresses mist of oil with gap in the horizontal direction and between oil blocking barrel 1, right angle transition pillow block 16 suppresses to climb oil with small―gap suture at vertical direction and oil blocking barrel 1, multiplely oilhole 13 is got rid of uniform the having of the bottom radial circumference of thrust collar 4, the outer oil catch 5 of contact top guide bearing is arranged on the upper mounting plate 24 of upper leading axle bearing 10, in contact top guide bearing, oil 6 is arranged on platform 25 in bearing support 10, control top, the top pasta that upper steady oil ring plate 7 is fixed on oil cooler 17 is stablized, in steady oil ring plate 8 be arranged on oil cooler inner side in the middle of control middle part pasta and stablize, isolate cold and hot oil circuit simultaneously, vent filter 9 puts together in upper leading axle bearing 10, in upper leading axle bearing 10, circumference has 4 air chamber attachment holes 15, oil cooler 17 puts together on upper spider 14, it is inner that bearing chamber steam turbine oil 18 is filled in upper spider 14, oil cooler 17 is flooded completely, upper leading axle bearing 10 circumferencial direction has intercommunicating pore 20.
As shown in Figure 2, the groove of sealing is had on upper spider 14 top, in sealed groove, place a circle Stamping Steel Ribbon 21, on Stamping Steel Ribbon 21, place one deck Gask-O-Seal 22, and then mist of oil cannot be overflowed surface of contact between upper spider 14 and upper leading axle bearing 10.
As shown in Figure 3, the groove of two seals is had in upper leading axle bearing 10, dual-seal bar 23 is placed in the groove of these two sealings, namely the sealing between upper leading axle bearing 10 and the outer oil catch 5 of contact top guide bearing is guaranteed, in turn ensure that the sealing between upper leading axle bearing 10 and contact top guide bearing inner grease retainer 6, by the setting of this two seals circle, ensure that mist of oil cannot overflow from the surface of contact upper leading axle bearing 10 and top guide bearing between oil catch 5, top guide bearing inner grease retainer 6.
Claims (3)
1. one of deriving a bearing oil-leakage-prevention oil mist prevention structure, is characterized in that: lead hermetic unit, oil blocking barrel and lower seal part from above, inner and outer air pressure connected part, steady pasta part, anti-creep oil part form, the outer oil catch (5) of contact top guide bearing is arranged on the upper mounting plate (24) of upper leading axle bearing (10), outer oil catch (5) inner circle of contact top guide bearing and thrust collar (4) cylindrical are slidably matched, contact top guide bearing inner grease retainer (6) is arranged on the middle platform (25) of upper leading axle bearing (10), contact top guide bearing inner grease retainer (6) inner circle and thrust collar (4) cylindrical are slidably matched, thrust collar (4) and axle (9) through interference mode hot jacket together with, oil blocking barrel (1) is welded on upper spider (14), three flinger ring plates (3) are equidistantly put and are welded on oil blocking barrel (1), two pieces seals half ring flat-plate (2) and puts together on upper spider (14), seal half ring flat-plate (2) and axle (19) Spielpassung, thrust collar (4) bottom radial direction has multiplely gets rid of oilhole (13), thrust collar (4) top radial direction has multiple vent (11), thrust collar (4) inner side has two oil resistance grooves (12) successively at the below circumferencial direction of vent (11), thrust collar (4) inner side is provided with right angle transition pillow block (16), right angle transition pillow block (16) in the horizontal direction and between flinger ring plate (3) with gap, right angle transition pillow block (16) between vertical direction and flinger ring plate (3) with gap, right angle transition pillow block (16) in the horizontal direction and between oil blocking barrel (1) with gap, right angle transition pillow block (16) between vertical direction and oil blocking barrel (1) with gap, upper leading axle bearing (10) circumference has 8 intercommunicating pores (20), upper leading axle bearing (10) radial direction has 4 air chamber attachment holes (15), upper leading axle bearing (10) is upper installs two pieces vent filter (9), oil cooler (17) puts together on upper spider (14), upper steady oil ring plate (7) is arranged on oil cooler (17) top, in steady oil ring plate (8) put together on upper spider (14) middle part, bearing chamber steam turbine oil (18) by upper steady oil ring plate (7) and in steady oil ring plate (8) be divided into two parts, the outer oil catch (5) of contact top guide bearing is completed by sealing gasket (22) and Stamping Steel Ribbon (21) and seals with the connection of upper leading axle bearing (10), contact top guide bearing inner grease retainer (6) is completed by sealing gasket (22) and Stamping Steel Ribbon (21) and seals with the connection of upper leading axle bearing (10), upper leading axle bearing (10) completes to be connected with upper spider (14) by double-sealing (23) and seals.
2. one derivation one bearing oil-leakage-prevention oil mist prevention structure according to claim 1, it is characterized in that: the upper part of one of deriving bearing adopts double sealing structure, contact top guide bearing is outer forms cavity between oil catch (5) and contact top guide bearing inner grease retainer (6), this cavity is by vent (11), air chamber attachment hole (15), vent filter (9) communicates with ambient atmosphere, contact top guide bearing inner grease retainer (6) and thrust collar (4) cylindrical contact seal, may deposit within the mist of oil splash is locked in contact guide bearing inner grease retainer (6) and form first sealing, the outer oil catch (5) of contact top guide bearing seals with thrust collar (4) cylindrical contact, second sealing is formed within the mist of oil entered by air chamber attachment hole (15) being locked in the outer oil catch (5) of contact top guide bearing.
3. one derivation one bearing oil-leakage-prevention oil mist prevention structure according to claim 1 and 2, is characterized in that: the vent (11) of thrust collar (4) top radial direction is positioned at contact top guide bearing outward between oil catch (5) and contact top guide bearing inner grease retainer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510338120.7A CN104948739A (en) | 2015-06-18 | 2015-06-18 | Oil-leakage-prevention oil-mist-prevention structure for integral pushing and guiding bearing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510338120.7A CN104948739A (en) | 2015-06-18 | 2015-06-18 | Oil-leakage-prevention oil-mist-prevention structure for integral pushing and guiding bearing |
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| CN104948739A true CN104948739A (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510338120.7A Pending CN104948739A (en) | 2015-06-18 | 2015-06-18 | Oil-leakage-prevention oil-mist-prevention structure for integral pushing and guiding bearing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425010A (en) * | 2019-07-19 | 2019-11-08 | 杭州中能汽轮动力有限公司 | Vertical cantilever formula steam turbine |
| CN112682327A (en) * | 2020-12-24 | 2021-04-20 | 中广核核电运营有限公司 | Main pump overhauling method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1096084A (en) * | 1993-05-31 | 1994-12-07 | 隆昌祝 | Thrust-bearing |
| CN2926565Y (en) * | 2006-06-09 | 2007-07-25 | 张庆贺 | Push bearing oil-tank collector of hydraulic-turbine generator |
| CN201535219U (en) * | 2009-10-10 | 2010-07-28 | 湖南汉龙水电设备有限公司 | Improved device of oil baffle plate of upper frame of vertical machine set |
| CN104009578A (en) * | 2014-05-13 | 2014-08-27 | 哈尔滨电气动力装备有限公司 | High-thrust pushing-guiding integrated bearing structure of vertical type asynchronous motor |
| CN204784709U (en) * | 2015-06-18 | 2015-11-18 | 哈尔滨电气动力装备有限公司 | Oily grease proofing fog structure of integrative bearing leak protection of deriving |
-
2015
- 2015-06-18 CN CN201510338120.7A patent/CN104948739A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1096084A (en) * | 1993-05-31 | 1994-12-07 | 隆昌祝 | Thrust-bearing |
| CN2926565Y (en) * | 2006-06-09 | 2007-07-25 | 张庆贺 | Push bearing oil-tank collector of hydraulic-turbine generator |
| CN201535219U (en) * | 2009-10-10 | 2010-07-28 | 湖南汉龙水电设备有限公司 | Improved device of oil baffle plate of upper frame of vertical machine set |
| CN104009578A (en) * | 2014-05-13 | 2014-08-27 | 哈尔滨电气动力装备有限公司 | High-thrust pushing-guiding integrated bearing structure of vertical type asynchronous motor |
| CN204784709U (en) * | 2015-06-18 | 2015-11-18 | 哈尔滨电气动力装备有限公司 | Oily grease proofing fog structure of integrative bearing leak protection of deriving |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425010A (en) * | 2019-07-19 | 2019-11-08 | 杭州中能汽轮动力有限公司 | Vertical cantilever formula steam turbine |
| CN112682327A (en) * | 2020-12-24 | 2021-04-20 | 中广核核电运营有限公司 | Main pump overhauling method |
| CN112682327B (en) * | 2020-12-24 | 2022-05-24 | 中广核核电运营有限公司 | Main pump overhauling method |
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Application publication date: 20150930 |
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