CN114017310A - Water pump oil circulation structure - Google Patents
Water pump oil circulation structure Download PDFInfo
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- CN114017310A CN114017310A CN202111058706.XA CN202111058706A CN114017310A CN 114017310 A CN114017310 A CN 114017310A CN 202111058706 A CN202111058706 A CN 202111058706A CN 114017310 A CN114017310 A CN 114017310A
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- oil
- pump shaft
- groove
- cavity
- shell
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/18—Lubricating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/08—Cooling; Heating; Preventing freezing
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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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of water pumps, and discloses a water pump oil circulation structure which comprises a shell, a pump shaft and a bearing seat, wherein the pump shaft is arranged on the shell; a cavity is arranged in the shell, and an oil return cavity, an axial bearing, an oil delivery cavity, a thrust bearing and an oil inlet cavity which are communicated with each other are sequentially arranged in the cavity from top to bottom; the pump shaft penetrates through the shell and extends in the vertical direction; the bearing seat comprises a fixing part and an outer ring wall which are connected, the fixing part is positioned above the outer ring wall, the fixing part is fixed with the pump shaft, the outer ring wall is sleeved outside the pump shaft, a yielding space is reserved between the outer ring wall and the pump shaft, the yielding space is communicated with the oil inlet cavity, the shell is sleeved outside the bearing seat, the bearing seat is connected with the inner side surface of the shell through an axial bearing and a thrust bearing, an oil rotating hole is formed in the outer ring wall and is respectively communicated with the yielding space and the oil return cavity, and one side, close to the pump shaft, of the oil rotating hole deviates towards the rotation direction of the pump shaft.
Description
Technical Field
The invention relates to the technical field of water pumps, in particular to a water pump oil circulation structure.
Background
At present, in water pump bearing application technique, generally there is the oil pocket to be used for saving lubricating oil in the pump case, lubricating oil except can lubricate the bearing in the pump case, can also play the effect of heat conduction, outside the heat derivation pump case that produces the pump shaft of water pump and bearing, however in the current water pump, the ubiquitous lubricating oil circulation flows slowly, and the bearing lubrication effect is poor, and the poor problem of heat conduction leads to the bearing operating temperature in the water pump to be high, and the easy vibration of operation, the big fragile of noise.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the lubricating oil in the water pump flows slowly in a circulating way and is not lubricated in place.
In order to solve the technical problem, the invention provides a water pump oil circulation structure, which comprises a shell, a pump shaft and a bearing seat, wherein the pump shaft is arranged on the shell; a cavity is arranged in the shell, and an oil return cavity, an axial bearing, an oil delivery cavity, a thrust bearing and an oil inlet cavity which are communicated with each other are sequentially arranged in the cavity from top to bottom; the pump shaft penetrates through the shell and extends in the vertical direction; the bearing seat comprises a fixing part and an outer ring wall which are connected, the fixing part is located above the outer ring wall, the fixing part is fixed with the pump shaft, the outer ring wall is sleeved outside the pump shaft, a yielding space is reserved between the outer ring wall and the pump shaft, the yielding space is communicated with the oil inlet cavity, the shell is sleeved outside the bearing seat, the bearing seat is connected with the inner side surface of the shell through an axial bearing and a thrust bearing, an oil rotating hole is formed in the outer ring wall, the oil rotating hole is respectively communicated with the yielding space and the oil return cavity, and one side, close to the pump shaft, of the oil rotating hole deviates towards the rotating direction of the pump shaft.
Further, be equipped with the heat dissipation chamber in the casing, the heat dissipation chamber is located the one side of pump shaft is kept away from to the cavity, the heat dissipation chamber with the cavity is linked together, the intracavity that dispels the heat is equipped with cooling coil.
Furthermore, an oil blocking sleeve is arranged between the shell and the pump shaft, the shell is mounted on the oil blocking sleeve, the oil blocking sleeve extends into the yielding space, the oil blocking sleeve is sleeved outside the pump shaft, the pump shaft can rotate relative to the oil blocking sleeve, a yielding gap is reserved between the top end of the oil blocking sleeve and the outer ring wall, an annular oil throwing groove is arranged between the oil blocking sleeve and the outer ring wall, and the oil throwing groove is located between the oil rotating hole and the yielding gap.
Furthermore, a first groove is concavely formed in the inner side surface of the outer ring wall in the direction back to the pump shaft, a second groove is concavely formed in the first groove in the direction back to the pump shaft, and the oil rotating hole is communicated with the second groove.
Furthermore, the top surface of the first groove is upwards concavely provided with an annular oil blocking groove, and the inner surface of the oil blocking groove is an arc surface.
Furthermore, the outer side surface of the oil blocking sleeve is concavely provided with an annular oil receiving groove towards the direction of the pump shaft, and the oil receiving groove is positioned in the oil throwing groove.
Furthermore, an avoiding gap is reserved between the shell and the fixing part, an annular third groove is concavely arranged on the outer side surface of the fixing part in the direction towards the pump shaft, and the third groove is located between the avoiding gap and the oil return cavity.
Furthermore, the top surface of the third groove is upwards concavely provided with an annular oil-proof groove, and the inner surface of the oil-proof groove is an arc surface.
Furthermore, an included angle between the extending direction of the oil rotating hole and the axial direction of the pump shaft is 20-50 degrees.
Furthermore, an included angle between the extending direction of the oil rotating hole and the radial direction of the pump shaft is 15-90 degrees.
Compared with the prior art, the water pump oil circulation structure provided by the embodiment of the invention has the beneficial effects that: the oil return cavity, the axial bearing, the oil feeding cavity, the thrust bearing, the oil inlet cavity, the abdicating space and the oil rotating hole are arranged into a circulation loop, so that lubricating oil can uninterruptedly flow through the axial bearing and the thrust bearing when the pump shaft rotates, the lubricating effect on the axial bearing and the thrust bearing is kept, and the heat of the axial bearing and the thrust bearing can be continuously taken away by the lubricating oil, so that the heat of the axial bearing and the thrust bearing is dissipated.
Drawings
FIG. 1 is a schematic structural diagram of one embodiment of the present invention;
FIG. 2 is a combination view of a bearing housing and an oil dam sleeve;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a schematic view of the bearing seat;
FIG. 5 is a schematic structural view of an oil resistant sleeve;
FIG. 6 is an enlarged view of a portion of FIG. 1;
fig. 7 is a top view of the bearing seat.
In the figure, 1, pump shaft; 2. a bearing seat; 21. an outer annular wall; 211. an oil rotating hole; 212. a first groove; 213. a second groove; 214. an oil resistance groove; 22. a fixed part; 221. a third groove; 222. an oil-proof groove; 223. recessing; 3. a housing; 31. a cavity; 311. an oil return cavity; 312. an axial bearing; 313. an oil feeding cavity; 314. a thrust bearing; 315. an oil inlet cavity; 32. a bearing housing; 321. heat dissipation ribs; 33. a bearing bracket; 34. a bearing cap; 35. a heat dissipation cavity; 4. an oil blocking sleeve; 41. an oil receiving groove; 42. a abdication gap; 5. avoiding the gap; 6. a space of abdicating; 7. an oil throwing groove; 8. and cooling the coil.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", etc., used herein to indicate the orientation or positional relationship, are based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1, a water pump oil circulation structure according to a preferred embodiment of the present invention includes a pump shaft 1, a bearing block 2, and a housing 3, wherein the bearing block 2 is located in the housing 3, the pump shaft 1 penetrates through the housing 3, the pump shaft 1 extends in a vertical direction, the pump shaft 1 can rotate with respect to the housing 3, the bearing block 2 rotates with the rotation of the pump shaft 1, and lubricating oil in the housing 3 circulates with the rotation of the pump shaft 1 and the bearing block 2.
As shown in fig. 1, fig. 3 and fig. 7, a cavity 31 is provided in the housing 3, the cavity 31 is filled with a lubricating oil, the cavity 31 is sequentially provided with an oil return cavity 311, an axial bearing 312, an oil supply cavity 313, a thrust bearing 314 and an oil supply cavity 315 from top to bottom, and the lubricating oil can flow sequentially along the oil return cavity 311, the axial bearing 312, the oil supply cavity 313, the thrust bearing 314 and the oil supply cavity 315. The bearing seat 2 comprises a fixing part 22 and an outer ring wall 21 which are connected, the fixing part 22 is positioned above the outer ring wall 21, and the fixing part 22 and the outer ring wall 21 are integrally formed. The fixing portion 22 is annular and is sleeved outside the pump shaft 1, the fixing portion 22 is fixed with the pump shaft 1 through a flat key, and the fixing portion 22 is completely attached to the pump shaft 1 and cannot pass through lubricating oil. The outer ring wall 21 is sleeved outside the pump shaft 1, an abdicating space 6 is reserved between the outer ring wall 21 and the pump shaft 1, the abdicating space 6 is annular, the abdicating space 6 is communicated with the oil inlet cavity 315, the shell 3 is sleeved outside the bearing seat 2, the inner side surfaces of the bearing seat 2 and the shell 3 are connected through an axial bearing 312 and a thrust bearing 314, the outer ring wall 21 is provided with a rotary oil hole 211, and the rotary oil hole 211 is respectively communicated with the abdicating space 6 and the oil return cavity 311. The extending direction of the oil rotation hole 211 is inclined with respect to the radial direction of the pump shaft 1, wherein one side of the oil rotation hole 211 adjacent to the pump shaft 1 is offset toward the rotation direction of the pump shaft 1.
As shown in fig. 1-7, the working process of the present invention is: when the pump shaft 1 rotates, the bearing seat 2 rotates along with the rotation of the pump shaft, the lubricating oil in the abdicating space 6 is thrown away in a direction away from the pump shaft 1 under the driving of the bearing seat 2, because one side of the oil rotation hole 211 close to the pump shaft 1 deflects towards the rotation direction of the pump shaft 1, the lubricating oil entering the oil rotation hole 211 accelerates along the oil rotation hole 211 under the pushing of the inner surface of the oil rotation hole 211 and enters the oil return cavity 311, because the lubricating oil continuously flows from the abdicating space 6 to the oil return cavity 311, the lubricating oil in the oil return cavity 311 is pushed to the axial bearing 312, so as to lubricate the axial bearing 312, the lubricating oil flows to the oil supply cavity 313 through the slit on the axial bearing 312, the lubricating oil in the oil supply cavity 313 flows to the thrust bearing 314, and the lubricating oil passes through the thrust bearing 314 and then enters the oil supply cavity 315, the oil inlet chamber 315 reenters the abdicating space 6, so that the circulation flow of the lubricating oil is formed.
In summary, the embodiment of the present invention provides a water pump oil circulation structure, which sets the oil return cavity 311, the axial bearing 312, the oil supply cavity 313, the thrust bearing 314, the oil inlet cavity 315, the abdicating space 6 and the oil rotation hole 211 as a circulation loop, so that when the pump shaft 1 rotates, the lubricating oil can continuously flow through the axial bearing 312 and the thrust bearing 314, and maintain the lubricating effect on the axial bearing 312 and the thrust bearing 314, and the lubricating oil can continuously take away the heat of the axial bearing 312 and the thrust bearing 314, thereby dissipating the heat of the axial bearing 312 and the thrust bearing 314, furthermore, because one side of the oil rotation hole 211 close to the pump shaft 1 deviates towards the rotation direction of the pump shaft 1, after the lubricating oil enters the oil rotation hole 211, the inner surface of the oil rotation hole 211 pushes the lubricating oil, the lubricating oil accelerates to flow to the oil supply cavity 313 under the effect of inertia, so that the lubricating oil accelerates to circulate, the lubricating effect of the axial bearing 312 and the thrust bearing 314 is improved, and the heat radiation effect of the axial bearing 312 and the thrust bearing 314 is also improved.
As shown in fig. 1 to 3, the housing 3 includes a bearing housing 32, a bearing bracket 33, and a bearing cover 34, the bearing bracket 33 is fixed above the bearing housing 32, and the bearing cover 34 is mounted above the bearing bracket 33. A heat dissipation cavity 35 is arranged in the housing 3, and the heat sink is surrounded by the bearing box 32 and the bearing frame 33. The heat dissipation cavity 35 is located one side that pump shaft 1 was kept away from to cavity 31, heat dissipation cavity 35 with it is linked together to send oil pocket 313, be equipped with cooling coil 8 in the heat dissipation cavity 35, be equipped with inlet and liquid outlet on the casing 3, cooling coil 8 respectively with inlet and liquid outlet intercommunication, the coolant liquid is equipped with in the cooling coil 8, the inlet with the liquid outlet can external liquid cooler, utilizes external liquid cooler to remove the heat of coolant liquid. The lubricating oil in the oil feeding cavity 313 partially flows to the thrust bearing 314 and partially flows to the heat dissipation cavity 35, and the cooling coil 8 takes away the heat of the lubricating oil in the heat dissipation cavity 35. The lateral surface of bearing box 32 is equipped with a plurality of heat dissipation muscle 321, heat dissipation muscle 321 winds bearing box 32 interval distribution just encloses into the round, heat dissipation muscle 321 is used for deriving the heat in heat dissipation chamber 35, heat dissipation muscle 321 winds bearing box 32 encloses into the round and is convenient for dispel the heat to whole bearing box 32.
As shown in fig. 1 to 3, an oil blocking sleeve 4 is disposed between the casing 3 and the pump shaft 1, the casing 3 is mounted on the oil blocking sleeve 4, the oil blocking sleeve 4 extends into the yielding space 6, the oil blocking sleeve 4 is sleeved outside the pump shaft 1, wherein the oil blocking sleeve 4 is not in contact with the bearing seat 2, a passage through which lubricating oil can pass is left between the oil blocking sleeve 4 and the bottom end of the bearing seat 2, the oil blocking sleeve 4 is sleeved outside the pump shaft 1, the pump shaft 1 can rotate relative to the oil blocking sleeve 4, a yielding gap 42 is left between the top end of the oil blocking sleeve 4 and the outer annular wall 21, and the yielding gap 42 is used for separating the oil blocking sleeve 4 from the outer annular wall 21. The offset gap 42 can prevent the outer annular wall 21 from rubbing against the oil blocking sleeve 4 when the outer annular wall 21 rotates along with the pump shaft 1. An annular oil slinger 7 is arranged between the oil blocking sleeve 4 and the outer annular wall 21, the oil slinger 7 is located between the oil rotating hole 211 and the abdicating gap 42, and the oil slinger 7 can be used for buffering lubricating oil flowing to the abdicating gap 42. When the pump shaft 1 rotates, under the driving of the pump shaft 1 and the bearing seat 2, lubricating oil near the pump shaft 1 flows upwards along a channel between the oil blocking sleeve 4 and the bottom end of the bearing seat 2, part of the lubricating oil is left in the oil throwing groove 7, and part of the lubricating oil flows along the oil rotating hole 211, and due to the fact that the abdicating gap 42 needs to be left between the top end of the oil blocking sleeve 4 and the outer annular wall 21, the oil throwing groove 7 is arranged between the abdicating gap 42 and the oil conveying through hole, the lubricating oil which flows to the abdicating gap 42 is gathered by the oil throwing groove 7, so that the lubricating oil is buffered, the lubricating oil is prevented from directly flowing into the abdicating gap 42, and leakage of the lubricating oil is reduced.
As shown in fig. 1 to 4, a first groove 212 is concavely formed on an inner surface of the outer ring wall 21 in a direction away from the pump shaft 1, a second groove 213 is concavely formed in the first groove 212 in a direction away from the pump shaft 1, the first groove 212 and the second groove 213 are formed in a stepped shape, and the oil rotation hole 211 communicates with the second groove 213. When the pump shaft 1 rotates, the lubricant oil located below the abdicating gap 42 is thrown away from the pump shaft 1 due to the centrifugal action, and falls into the first groove 212, and because the second groove 213 and the first groove 212 are stepped, the lubricant oil slides to the second groove 213 along the first groove 212 under the centrifugal action, and flows out of the first groove 212 through the lubricant oil rotating hole 211, and when the lubricant oil is stored, the lubricant oil can be guided to flow to the lubricant oil rotating hole 211. The top surface of the first groove 212 is recessed upwards to form an annular oil blocking groove 214, and the inner surface of the oil blocking groove 214 is an arc surface. Lubricating oil can flow upwards after entering a channel between the bearing seat 2 and the oil blocking sleeve 4, when the lubricating oil flows to the abdicating gap 42, part of the lubricating oil can be supported in the oil blocking groove 214, and then under the action of centrifugation, the lubricating oil flows along the arc-shaped inner surface of the oil blocking groove 214, sequentially flows through the first groove 212 and the second groove 213, and then flows out from the oil rotating hole 211. Since the bearing seat 2 rotates with the pump shaft 1, the inner surface of the arc-shaped oil blocking groove 214 can prevent oil from being thrown by the bearing seat 2 to the oil blocking sleeve 4. The oil blocking groove 214 can prevent the lubricating oil from flowing into the abdicating gap 42 and guide the lubricating oil at the top of the abdicating space 6 to flow away from the oil swirling hole 211.
As shown in fig. 2 to 5, an annular oil receiving groove 41 is concavely formed on the outer side surface of the oil blocking sleeve 4 in the direction of the pump shaft 1, and the oil receiving groove 41 is located in the oil slinger 7. The oil receiving groove 41 is recessed toward the pump shaft 1, so that the space in the oil slinger 7 is increased, and the oil slinger 7 can contain more lubricating oil. The inner surface of the oil receiving groove 41 is an arc surface, and lubricating oil can conveniently flow away along the oil receiving groove 41 through the inner surface of the arc oil receiving groove 41. The top surface of the oil receiving groove 41 is higher than the top surface of the oil blocking groove 214, because the bearing seat 2 rotates along with the pump shaft 1 when rotating, the oil blocking sleeve 4 is relatively static, and if lubricating oil falling into the oil blocking groove 214 is thrown away by the pump shaft 1, the lubricating oil can be directly received by the oil receiving groove 41 and cannot enter the yielding gap 42. Hinder oil groove 214 with connect the shortest interval A between the oil groove 41 to be 1 ~ 2mm, this distance can not only guarantee to connect oil groove 41 to have sufficient length to accept the lubricating oil of throwing away, can also guarantee not to lead to connecing oil groove 41 to hold too much lubricating oil owing to connect the oil groove 41 top surface too high, avoid connecing the lubricating oil accumulation in the oil groove 41 too much and crowd in the clearance of stepping down 42.
As shown in fig. 1 to 5, the bearing seat 2 penetrates the housing 3, and an escape gap 5 is left between the housing 3 and the fixing portion 22, and the escape gap 5 is used for separating the bearing cover 34 and the bearing seat 2. The clearance 5 can prevent the bearing cap 34 from rubbing against the fixed portion 22 when the fixed portion 22 rotates with the pump shaft 1. An annular third groove 221 is concavely arranged on the outer side surface of the fixing portion 22 in the direction towards the pump shaft 1, the third groove 221 is located between the avoiding gap 5 and the oil return cavity 311, the third groove 221 is located on the fixing portion 22, and lubricating oil flowing to the avoiding gap 5 can be contained in the third groove 221, so that the lubricating oil is prevented from leaking out of the avoiding gap 5. The top surface of the third groove 221 is recessed upward to form an annular oil-proof groove 222, the inner surface of the oil-proof groove 222 is a curved surface that is recessed upward, and the oil-proof groove 222 can receive the lubricating oil flowing to the avoiding gap 5 and can guide the lubricating oil to flow to the housing 3 along the inner surface of the curved oil-proof groove 222. An annular recess 223 is concavely formed at a position, opposite to the pump shaft 1, of the top end of the housing 3, which corresponds to the oil-proof groove 222, so that one surface, facing the pump shaft 1, of the top end of the bearing cover 34 is stepped, and lubricating oil thrown out from the oil-proof groove 222 can flow back to the oil return cavity 311 along the top end of the stepped housing 3 after falling on the top end of the housing 3.
As shown in fig. 2-6, the shortest distance B between the oil-proof groove 222 and the bearing cap 34 is 1-2 mm, and a certain distance between the oil-proof groove 222 and the bearing cap 34 enables the oil-proof groove 222 and the bearing cap 34 to generate a peak-shifting effect, so that the lubricating oil in the oil-proof groove 222 is more easily thrown into the recess 223 and does not directly enter the clearance 5, and the shortest distance between the oil-proof groove 222 and the bearing cap 34 is controlled to be 1-2 mm, so that the lubricating oil thrown into the recess 223 can be prevented from flowing into the clearance 5 due to the long-distance obstruction of the top end of the bearing seat 2.
As shown in fig. 2 to 7, an included angle C between the extending direction of the oil rotation hole 211 and the axial direction of the pump shaft 1 is 20 to 50 degrees, in this angle range, the lubricating oil flows up along the oil rotation hole 211 more easily, and the lubricating oil is smoother in the process of entering the oil rotation hole 211 from the abdicating space 6, so that the lubricating oil does not impact the outer annular wall 21 due to too large or too small angle. An included angle D between the extending direction of the oil rotating hole 211 and the radial direction of the pump shaft 1 is 15-90 degrees, preferably, the included angle D between the extending direction of the oil rotating hole 211 and the radial direction of the pump shaft 1 is 15 degrees, at this angle, the oil rotating hole 211 more easily throws the lubricating oil into the oil return cavity 311, and the lubricating oil in the oil rotating hole 211 can reach an optimal speed. If the volume of the outer annular wall 21 is too small, the included angle D between the extending direction of the oil rotation hole 211 and the radial direction of the pump shaft 1 can be designed to be 90 degrees, so that the space occupied by the oil rotation hole 211 on the outer annular wall 21 is reduced, and the structural strength of the outer annular wall 21 is ensured.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A water pump oil circulation structure, comprising:
the oil-feeding device comprises a shell, wherein a cavity is formed in the shell, and an oil return cavity, an axial bearing, an oil feeding cavity, a thrust bearing and an oil inlet cavity which are communicated with each other are sequentially arranged in the cavity from top to bottom;
a pump shaft extending through the housing, the pump shaft extending in a vertical direction; and
the bearing seat comprises a fixing part and an outer ring wall which are connected, the fixing part is located above the outer ring wall, the fixing part is fixed with the pump shaft, the outer ring wall is sleeved outside the pump shaft, a yielding space is reserved between the outer ring wall and the pump shaft, the yielding space is communicated with the oil inlet cavity, the shell is sleeved outside the bearing seat, the bearing seat is connected with the inner side surface of the shell through an axial bearing and a thrust bearing, an oil rotating hole is formed in the outer ring wall, the oil rotating hole is respectively communicated with the yielding space and the oil return cavity, and one side, close to the pump shaft, of the oil rotating hole deviates towards the rotating direction of the pump shaft.
2. The water pump oil circulation structure according to claim 1, wherein: the pump shaft is characterized in that a heat dissipation cavity is arranged in the shell, the heat dissipation cavity is located on one side, away from the pump shaft, of the cavity, the heat dissipation cavity is communicated with the cavity, and a cooling coil is arranged in the heat dissipation cavity.
3. The water pump oil circulation structure according to claim 1, wherein: the pump is characterized in that an oil blocking sleeve is arranged between the shell and the pump shaft, the shell is installed on the oil blocking sleeve, the oil blocking sleeve extends into the yielding space, the oil blocking sleeve is sleeved outside the pump shaft, the pump shaft can rotate relative to the oil blocking sleeve, a yielding gap is reserved between the top end of the oil blocking sleeve and the outer ring wall, an annular oil throwing groove is arranged between the oil blocking sleeve and the outer ring wall, and the oil throwing groove is located between the oil rotating hole and the yielding gap.
4. The water pump oil circulation structure according to claim 3, wherein: the inner side surface of the outer ring wall is concavely provided with a first groove in the direction back to the pump shaft, a second groove is concavely arranged in the first groove in the direction back to the pump shaft, and the oil rotating hole is communicated with the second groove.
5. The water pump oil circulation structure according to claim 4, wherein: the top surface of the first groove is upwards concavely provided with an annular oil resistance groove, and the inner surface of the oil resistance groove is an arc surface.
6. The water pump oil circulation structure according to claim 5, wherein: the outer side surface of the oil blocking sleeve is concavely provided with an annular oil receiving groove towards the direction of the pump shaft, and the oil receiving groove is positioned in the oil throwing groove.
7. The water pump oil circulation structure according to claim 1, wherein: an avoiding gap is reserved between the shell and the fixing part, an annular third groove is concavely arranged on the outer side surface of the fixing part in the direction towards the pump shaft, and the third groove is located between the avoiding gap and the oil return cavity.
8. The water pump oil circulation structure according to claim 7, wherein: the top surface of the third groove is upwards concavely provided with an annular oil-proof groove, and the inner surface of the oil-proof groove is an arc surface.
9. The water pump oil circulation structure according to claim 1, wherein: and an included angle between the extending direction of the oil rotating hole and the axial direction of the pump shaft is 20-50 degrees.
10. The water pump oil circulation structure according to claim 1, wherein: and an included angle between the extending direction of the oil rotating hole and the radial direction of the pump shaft is 15-90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111058706.XA CN114017310B (en) | 2021-09-09 | 2021-09-09 | Oil circulation structure of water pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111058706.XA CN114017310B (en) | 2021-09-09 | 2021-09-09 | Oil circulation structure of water pump |
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| CN114017310A true CN114017310A (en) | 2022-02-08 |
| CN114017310B CN114017310B (en) | 2023-06-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114905327A (en) * | 2022-05-27 | 2022-08-16 | 珠海格力电器股份有限公司 | Electric spindle structure and processing equipment |
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| CN202789661U (en) * | 2012-09-11 | 2013-03-13 | 武汉特种工业泵厂有限公司 | Bearing component for axial flow pump |
| CN104033423A (en) * | 2013-03-04 | 2014-09-10 | 上海凯泉泵业（集团）有限公司 | Simple method for reducing temperature of bearing block and air-cooled bearing structure |
| CN108240350A (en) * | 2017-12-28 | 2018-07-03 | 西安航天泵业有限公司 | A kind of vertical pump parts of bearings and MODEL VERTICAL MULTISTAGE PUMP |
| CN208221168U (en) * | 2018-05-21 | 2018-12-11 | 湖南凯利特泵业有限公司 | A kind of vertical pump thrust bearing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114905327A (en) * | 2022-05-27 | 2022-08-16 | 珠海格力电器股份有限公司 | Electric spindle structure and processing equipment |
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