CN216895418U - Oil mist preventing device for externally-cooled bearing oil basin cover for hydropower station - Google Patents

Abstract

The utility model relates to the field of bearing sealing, in particular to an oil mist prevention device for an externally-cooled bearing oil basin cover for a hydropower station, which comprises a rotating shaft, a bearing, a base, an oil return assembly and a protection assembly, wherein the base is horizontally arranged, the rotating shaft is horizontally arranged above the base, the bearing is sleeved on the rotating shaft, the protection assembly is sleeved on the bearing, the inner side wall of the protection assembly is fixedly connected with the outer side wall of the bearing, one part of the oil return assembly is sleeved on the protection assembly, the other part of the oil return assembly is arranged beside the base, and the oil return assembly is fixedly connected with the base. The utility model has the advantages that: can be detached for cleaning, can achieve the long-term effective ideal sealing effect, reduces the environmental pollution, and ensures the high-efficiency and safe operation of equipment.

Description

Oil mist preventing device for externally-cooled bearing oil basin cover for hydropower station

Technical Field

The utility model relates to the technical field of bearing sealing, in particular to an oil mist prevention device for an external cooling bearing oil basin cover for a hydropower station.

Background

The overflow of the oil mist of the thrust bearing, the upper guide bearing and the lower guide bearing of the hydraulic generator can cause the pollution of equipment such as a magnetic pole of a rotor of the generator, a stator bar and the like. After the oil mist is combined with dust, the oil mist is adsorbed on an insulating layer for a long time, the heat dissipation effect of a generator set is influenced, the insulation of a generator coil bar and the like is corroded, the insulation performance of the generator coil bar is reduced, the aging is accelerated, the service life of the generator set is shortened, the short circuit or breakdown of the generator coil is easily caused, and the safe operation of the whole generator set is threatened.

The bearing oil mist problem not only pollutes the ecological environment, but also increases the operation cost, and simultaneously increases the daily workload of field personnel and reduces the reliability of the unit.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides an oil mist preventing device for an external cold bearing oil basin cover for a hydropower station.

The purpose of the utility model is realized by the following technical scheme: the utility model provides an outer cold bearing oil pan lid oil mist prevention device for power station, includes pivot, bearing, base, oil return subassembly and protection subassembly, the base level sets up, the pivot level sets up the top at the base, the bearing housing is established in the pivot, the protection subassembly cover is established on the bearing, and the inside wall of protection subassembly and the lateral wall fixed connection of bearing, a part cover of oil return subassembly is established on the protection subassembly, and another part of oil return subassembly sets up the side at the base, and oil return subassembly and base fixed connection.

Preferably, the protection subassembly includes two protection wheels, two the protection wheel is all established on the bearing, and two protection wheel symmetry settings, two the lateral wall of protection wheel is laminated mutually, and the inside wall of every protection wheel all with the lateral wall fixed connection of bearing, every all set up the oil-out that a plurality of along protection wheel circumference equiangle set up on the lateral wall of protection wheel, and every oil-out all is linked together with the bearing.

Preferably, every all be equipped with the radiating piece on the lateral wall of protection wheel, and radiating piece and a protection wheel are linked together, every the radiating piece all includes rotating ring, radiator blade and solid fixed ring, the rotating ring cover is established in the pivot, and the rotating ring is located the side of bearing, gu fixed ring cover establishes on the rotating ring, and solid fixed ring and rotating ring fixed connection, be equipped with the space between the lateral wall of rotating ring and solid fixed ring's the inside wall, radiator blade is equipped with a plurality ofly, and a plurality of radiator blade all along the equal angle setting of rotating ring circumference in the space, and the both ends of every fin respectively with rotating ring and solid fixed ring fixed connection.

Preferably, the oil return subassembly includes oil return ring, stationary blade, communicating pipe and oil-well pump, oil return ring cover is established on two protection wheels, and the lateral wall that returns oil ring and the top fixed connection of base, the stationary blade is equipped with two, and two stationary blades set up respectively in the both sides that return oil ring, and every stationary blade all with base fixed connection, the vertical setting of communicating pipe is at the side that returns oil ring, and the bottom of communicating pipe runs through the base and is linked together with the hypomere of returning oil ring, and the top of communicating pipe runs through back oil ring and extends to in the oil return ring, the oil-well pump sets up the side at the base, and the output of oil-well pump is linked together with the middle section of communicating pipe.

Preferably, the inner side wall of the oil return ring is provided with a plurality of drainage grooves.

Preferably, the two fixing pieces are fixedly connected with the oil return ring through bolts.

The utility model has the following advantages:

when the pivot drives the bearing and rotates, partial fluid is thrown away when the bearing rotates, fluid is thrown away to the protection wheel in, the protection wheel rotates along with the bearing, throw away fluid to the oil return intra-annular through the oil-out, and the protection wheel can drive solid fixed ring and rotating ring rotation at pivoted in-process, thereby make radiator fin rotate, dispel the heat in the protection wheel, avoid fluid because of high temperature atomizing, the intra-annular fluid of oil return can flow to the bottom of oil return ring through the drainage tank, the oil-well pump function, the fluid that will return oil ring bottom is through communicating pipe injection to the oil return intra-annular, make fluid can get into in the bearing through the protection wheel, can dismantle the clearance, and can reach long-term effectual ideal sealed effect, reduce environmental pollution, guarantee that equipment is high-efficient, the safe operation.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic structural view of a rotating shaft and a bearing according to the present invention;

FIG. 3 is a schematic structural view of an oil return assembly according to the present invention;

fig. 4 is a schematic structural diagram of a protection component according to the present invention.

In the figure: 1-rotating shaft, 2-bearing, 3-base, 4-oil return component, 41-oil return ring, 42-fixing piece, 43-communicating pipe, 44-oil pump, 5-protection component, 51-protection wheel, 52-heat sink, 521-rotating ring, 522-heat sink blade and 523-fixing ring.

Detailed Description

The utility model will be further described with reference to the accompanying drawings, but the scope of the utility model is not limited to the following.

As shown in fig. 1 to 4, an oil mist preventing device for an externally-cooled bearing oil basin cover for a hydropower station comprises a rotating shaft 1, a bearing 2, a base 3, an oil return component 4 and a protection component 5, wherein the base 3 is horizontally arranged, the rotating shaft 1 is horizontally arranged above the base 3, the rotating shaft 1 is sleeved with the bearing 2, the protection component 5 is sleeved on the bearing 2, the inner side wall of the protection component 5 is fixedly connected with the outer side wall of the bearing 2, a part of the oil return component 4 is sleeved on the protection component 5, the other part of the oil return component 4 is arranged at the side of the base 3, and the oil return component 4 is fixedly connected with the base 3.

Specifically, protection subassembly 5 includes two protection wheels 51, two protection wheel 51 all overlaps and establishes on bearing 2, and two protection wheel 51 symmetries set up, two protection wheel 51's lateral wall is laminated mutually, and every protection wheel 51's inside wall all with bearing 2's lateral wall fixed connection, every all set up the oil-out that a plurality of along protection wheel 51 circumference equiangular setting on protection wheel 51's the lateral wall, and every oil-out all is linked together with bearing 2, when pivot 1 drives bearing 2 and rotates, partial fluid is thrown away when bearing 2 rotates, and fluid is thrown away to protection wheel 51 in, protection wheel 51 rotates along with bearing 2, throws away fluid to time return oil ring 41 in through the oil-out.

Specifically, each of the protection wheels 51 is provided with a heat dissipation member 52 on a side wall thereof, the heat dissipation member 52 is communicated with one of the protection wheels 51, each of the heat dissipation members 52 includes a rotating ring 521, a plurality of heat dissipation blades 522 and a fixing ring 523, the rotating ring 521 is sleeved on the rotating shaft 1, the rotating ring 521 is located beside the bearing 2, the fixing ring 523 is sleeved on the rotating ring 521, the fixing ring 523 is fixedly connected with the rotating ring 521, a gap is provided between an outer side wall of the rotating ring 521 and an inner side wall of the fixing ring 523, the plurality of heat dissipation blades 522 are provided, the plurality of heat dissipation blades 522 are all arranged in the gap at equal angles along the circumferential direction of the rotating ring 521, two ends of each heat dissipation blade are respectively and fixedly connected with the rotating ring 521 and the fixing ring 523, the protection wheels 51 drive the fixing ring 523 and the rotating ring 521 to rotate in the rotating process, so that the heat dissipation blades 522 rotate to dissipate heat in the protection wheels 51, avoid the oil to atomize because of high temperature.

Specifically, the oil return assembly 4 includes an oil return ring 41, two fixing plates 42, a communication pipe 43 and an oil pump 44, the oil return ring 41 is sleeved on two protection wheels 51, the outer side wall of the oil return ring 41 is fixedly connected with the top of the base 3, the two fixing plates 42 are respectively disposed on two sides of the oil return ring 41, each fixing plate 42 is fixedly connected with the base 3, the communication pipe 43 is vertically disposed beside the oil return ring 41, the bottom end of the communication pipe 43 penetrates through the base 3 and is communicated with the lower section of the oil return ring 41, the top end of the communication pipe 43 penetrates through the oil return ring 41 and extends into the oil return ring 41, the oil pump 44 is disposed beside the base 3, the output end of the oil pump 44 is communicated with the middle section of the communication pipe 43, oil in the oil return ring 41 flows to the bottom of the oil return ring 41 through a drainage groove, the oil pump 44 operates to inject the oil at the bottom of the oil return ring 41 into the oil return ring 41 through the communication pipe 43, oil can enter the bearing 2 through the protection wheel 51.

Specifically, the inner side wall of the oil return ring 41 is provided with a plurality of drainage grooves, so that oil sputtering is avoided.

Specifically, two stationary blades 42 all pass through bolt and oil return ring 41 fixed connection, can be to the inside clearance of oil return ring 41, increase life.

The working process of the utility model is as follows: when the pivot 1 drives the bearing 2 and rotates, partial oil is thrown away when the bearing 2 rotates, oil is thrown away to the protection wheel 51, the protection wheel 51 rotates along with the bearing 2, throw away oil to the time of returning to oil ring 41 through the oil-out, and the protection wheel 51 can drive solid fixed ring 523 and rotating ring 521 to rotate at the pivoted in-process, thereby make radiator fin 522 rotate, dispel the heat in the protection wheel 51, avoid oil because of high temperature atomizing, oil in the time of returning to oil ring 41 can flow to the bottom of returning to oil ring 41 through the drainage groove, oil-well pump 44 functions, the oil that will return the oil ring 41 bottom is injected into to returning to oil ring 41 through communicating pipe 43, make oil can get into in the bearing 2 through the protection wheel 51.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a power station is with outer cold bearing oil basin lid oil mist proof device which characterized in that: including pivot (1), bearing (2), base (3), oil return subassembly (4) and protection subassembly (5), base (3) level sets up, pivot (1) level sets up the top in base (3), bearing (2) cover is established in pivot (1), protection subassembly (5) cover is established on bearing (2), and the lateral wall fixed connection of the inside wall of protection subassembly (5) and bearing (2), the partly cover of oil return subassembly (4) is established on protection subassembly (5), and another part of oil return subassembly (4) sets up the side in base (3), and oil return subassembly (4) and base (3) fixed connection.

2. The external cold bearing oil pan cover oil mist prevention device for the hydropower station as claimed in claim 1, wherein: protection subassembly (5) include two protection wheels (51), two protection wheel (51) is all established on bearing (2), and two protection wheel (51) symmetry settings, two the lateral wall of protection wheel (51) is laminated mutually, and the inside wall of every protection wheel (51) all with the lateral wall fixed connection of bearing (2), every the oil-out that the angle set up such as protection wheel (51) circumference is all seted up a plurality of on the lateral wall of protection wheel (51), and every oil-out all is linked together with bearing (2).

3. The external cold bearing oil pan cover oil mist prevention device for the hydropower station according to claim 2, wherein: each side wall of each protection wheel (51) is provided with a heat dissipation piece (52), the heat dissipation pieces (52) are communicated with one protection wheel (51), each heat dissipation piece (52) comprises a rotating ring (521), heat dissipation blades (522) and a fixing ring (523), the rotating ring (521) is sleeved on the rotating shaft (1), the rotating ring (521) is positioned at the side of the bearing (2), the fixed ring (523) is sleeved on the rotating ring (521), the fixed ring (523) is fixedly connected with the rotating ring (521), a gap is arranged between the outer side wall of the rotating ring (521) and the inner side wall of the fixed ring (523), a plurality of radiating blades (522) are arranged, the plurality of radiating blades (522) are all arranged in the gap at equal angles along the circumferential direction of the rotating ring (521), and two ends of each radiating fin are respectively and fixedly connected with the rotating ring (521) and the fixing ring (523).

4. The external cold bearing oil pan cover oil mist prevention device for the hydropower station according to claim 3, wherein: the oil return assembly (4) comprises an oil return ring (41), a fixing plate (42), a communicating pipe (43) and an oil well pump (44), the oil return ring (41) is sleeved on the two protection wheels (51), the outer side wall of the oil return ring (41) is fixedly connected with the top of the base (3), two fixing pieces (42) are arranged, the two fixing pieces (42) are respectively arranged at two sides of the oil return ring (41), each fixing piece (42) is fixedly connected with the base (3), the communicating pipe (43) is vertically arranged at the side of the oil return ring (41), the bottom end of the communicating pipe (43) penetrates through the base (3) and is communicated with the lower section of the oil return ring (41), the top end of the communicating pipe (43) penetrates through the oil return ring (41) and extends into the oil return ring (41), the oil well pump (44) is arranged beside the base (3), and the output end of the oil well pump (44) is communicated with the middle section of the communicating pipe (43).

5. The external cold bearing oil pan cover oil mist prevention device for the hydropower station according to claim 4, wherein: and a plurality of drainage grooves are formed in the inner side wall of the oil return ring (41).

6. The external cold bearing oil pan cover oil mist prevention device for the hydropower station according to claim 4, wherein: the two fixing pieces (42) are fixedly connected with the oil return ring (41) through bolts.

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