CN107269571A - A kind of bearing in pump case lubricating-oil self-circulating system - Google Patents
A kind of bearing in pump case lubricating-oil self-circulating system Download PDFInfo
- Publication number
- CN107269571A CN107269571A CN201710660688.XA CN201710660688A CN107269571A CN 107269571 A CN107269571 A CN 107269571A CN 201710660688 A CN201710660688 A CN 201710660688A CN 107269571 A CN107269571 A CN 107269571A
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- China
- Prior art keywords
- oil
- bearing
- axle sleeve
- pump shaft
- discharge passage
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/06—Lubrication
- F04D29/061—Lubrication especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention discloses a kind of bearing in pump case lubricating-oil self-circulating system, including bearing housing, bearing is installed in bearing housing, bearing has pump shaft by axle sleeve tight fit connection；The case lid of bearing housing is stretched out in pump shaft upper end, and the bottom of bearing housing is stretched out in lower end；In bearing housing, the cavity between bearing lower surface and bottom forms inside shoe cream room, bottom and is provided with oil discharge passage；Drainback passage is provided with inside top cover；Periphery of the oil inlet of oil discharge passage towards pump shaft；Axle sleeve lower end is extended downward into below the oil inlet of oil discharge passage；The axle sleeve wall of axle sleeve lower end is provided with input oil groove；With the rotation of pump shaft, the input oil groove on axle sleeve can be directed at the oil inlet of oil discharge passage, and the lubricating oil in shoe cream room is got rid of in oil discharge passage；With the rotation of pump shaft, the axle sleeve wall of axle sleeve can close oil inlet, to keep discharge pressure；Oil discharge passage is connected with drainback passage by oil return pipe.The present invention carries out circulation lubrication and heat absorption using lubricating oil to bearing, improves the radiating efficiency of bearing.
Description
Technical field
Can be to lubricating-oil self-circulating system the present invention relates to a kind of bearing in pump case, especially one kind.
Background technology
Bearing housing is a kind of box parts for playing support and lubrication bearing, meanwhile, bear equipment and operationally produce
Axial and radial force.In having the equipment of rotating shaft, axle is usually to be got up rotation by bearings, and bearing is then arranged on bearing
In case, lubricating oil is marked with bearing housing, in the course of the work so that bearing is lubricated.Prior art in, as shown in figure 1,
Shoe cream room in bearing in pump case is to be located at the cavity below bearing, can not have bearing 1b's by being injected in shoe cream room 1c
Lubricating oil is lubricated to bearing 1b.But, because bearing 1b temperature can be raised with pump shaft 1a rotation, bearing 1b is not
Only need lubrication, in addition it is also necessary to cooled cooling.However, can only be absorbed heat in the prior art by upper strata lubricating oil 1d to bearing
Cooling, cooling efficiency is low, and cooling-down effect is not obvious, causes that bearing heating is serious, the lost of life, or even can influence the normal of equipment
Operation.
The content of the invention
For above-mentioned the deficiencies in the prior art, the present invention provides a kind of bearing in pump case lubricating-oil self-circulating system, solves
The low technical problem of prior art middle (center) bearing radiating efficiency, can carry out circulation lubrication and heat absorption to bearing using lubricating oil, carry
The radiating efficiency of high bearing.
In order to solve the above technical problems, technical scheme is as follows：A kind of bearing in pump case lubricating-oil self-circulating system
Bearing is installed in system, including bearing housing, bearing housing, bearing has pump shaft by axle sleeve tight fit connection；Stretch the pump shaft upper end
Go out the case lid of bearing housing, the bottom of bearing housing is stretched out in lower end, pump shaft upper and lower ends by sealing mechanism respectively with top cover, bottom
Sealing；In the bearing housing, the cavity between bearing lower surface and bottom, which is formed, is provided with fuel-displaced lead to inside shoe cream room, the bottom
Road；Drainback passage is provided with inside top cover；The oil-out of the drainback passage is located above bearing, and towards bearing upper surface；Institute
The oil inlet of oil discharge passage on bottom is stated towards the periphery of pump shaft；The axle sleeve lower end extends downward into the oil-feed of oil discharge passage
Below mouthful；The axle sleeve wall of the axle sleeve lower end is provided with input oil groove；With the rotation of pump shaft, the input oil groove on axle sleeve can be aligned
The oil inlet of oil discharge passage, so as to connect shoe cream room and oil discharge passage, and the lubricating oil in shoe cream room is pressed into oil discharge passage；
With the rotation of pump shaft, the axle sleeve wall of axle sleeve can close oil inlet, to keep discharge pressure；The oil-out of oil discharge passage is with returning
The oil inlet of oily passage is connected by oil return pipe.
It is preferred that, the axle sleeve upper end and pump shaft tight fit connection, axle sleeve middle part and lower end coordinate with pump shaft gap；It is described
Pump shaft lower end is sealed by the outer face of tubular oil sump and bottom；The tubular oil sump includes in insertion axle sleeve and is socketed in
Cylinder on pump shaft, cylinder inboard wall face coordinates with pump shaft gap, avoids coordinating with axle sleeve gap outside cylinder；The cylinder lower end is set
There is flange, flange is fixed by screws on the outer face of bottom；The flange is fitted on the outer face of bottom, and by close
Seal is sealed with bottom outer face.
It is preferred that, the oil return pipe upper and lower ends are respectively by the oil inlet of seal nipple and drainback passage and fuel-displaced logical
The oil-out connection in road.
It is preferred that, the quantity of the input oil groove is two；Two input oil grooves are set on the axisymmetrical of pump shaft.
It is preferred that, the input oil groove upper end is located above bottom inner face, and input oil groove lower end is located at the oil-feed of oil discharge passage
Below mouthful.
It is preferred that, the oil discharge passage is arranged on the side of bottom, and oil inlet passage is arranged on top cover and oil discharge passage phase
Same side.
Compared with prior art, the invention has the advantages that：
1st, axle sleeve rotation is driven using pump shaft, input oil groove is set on axle sleeve, lubricating oil enters after input oil groove, with turning for axle sleeve
Dynamic, when input oil groove is directed at the oil inlet of oil discharge passage, the lubricating oil in input oil groove under the influence of centrifugal force, is dumped into fuel-displaced logical
In road；Rotated with the high speed of pump shaft, input oil groove is constantly got rid of into lubricating oil into oil discharge passage, so as in oil discharge passage and return
The liquid continuously flowed is formed in oil pipe, with being on the increase for liquid, the pressure of oil discharge passage and oil return liquid in pipe is continuous
Increase, thus by lubricating oil be pressed into drainback passage in, lubricating oil comes out from the oil-out in drainback passage, under fall on bearing upper end
Face, then pass through from Bearing inner, fallen back to through bearing lower surface in shoe cream room, so that the circulating cooling and profit of complete matched bearings
It is sliding.
2nd, with the rotation of pump shaft, the axle sleeve wall of axle sleeve can close oil inlet, it is to avoid the lubricating oil in oil discharge passage is returned
Flow in shoe cream room, cause the pressure of lubricating oil in oil discharge passage to decline, so as to keep discharge pressure.
3rd, because the lubricating oil in input oil groove comes from shoe cream room lower floor, lower floor's oil temperature is less than upper strata oil temperature, is recycled to bearing
On lubricating oil come from shoe cream room lower floor, the heat absorption efficiency of lubricating oil can be greatly improved, thus improve bearing radiating effect
Rate.
4th, due to the inner ring in bearing as pump shaft rotates, when being lubricated to bearing side, with bearing inner race
Rotation, the lubricating oil of bearing side can be brought to opposite side, so that bearing opposite side is also lubricated and absorbed heat, so,
Just only need to set circulating oil path in the side of bearing housing（Oil discharge passage, oil return pipe and drainback passage）, greatly simplify knot
Structure, reduces cost.
5th, by setting tubular oil sump to being sealed between pump shaft lower end and bottom, in lubricating oil from axle sleeve and bottom
Between gap when penetrating into axle sleeve, cylinder prevents pump shaft from touching lubricating oil, it is to avoid lubricating oil is along pump shaft from pump shaft lower end
Flow out the leakage caused；In addition, the flange on tubular oil sump can avoid lubricating oil from letting out that the outflow of bottom outer face is caused
Dew.
The 6th, two symmetrical input oil grooves are set on axle sleeve, the oil-feed efficiency of oil discharge passage can be increased so that circulating oil path
Lubricating oil can be more quickly filled up, shortens cycle period, so as to improve the radiating efficiency of bearing.
7th, as a result of circulating oil path（Oil discharge passage, oil return pipe and drainback passage）Bearing is lubricated and dropped
Temperature, therefore without will be lubricated and cool in bearing dip lubrication oil, so as to greatly reduce the consumption of lubricating oil.
Brief description of the drawings
Fig. 1 is the structural representation of the case of bearing in pump of the prior art；
Fig. 2 is the structural representation of bearing in pump case lubricating-oil self-circulating system in present embodiment.
Embodiment
The present invention is described in further detail with preferred embodiment below in conjunction with the accompanying drawings.
As shown in Fig. 2 a kind of bearing in pump case lubricating-oil self-circulating system, including bearing housing, axle is installed in bearing housing
2 are held, bearing 2 has pump shaft 1 by the tight fit connection of axle sleeve 6；The top cover 3 of bearing housing, lower end projecting shaft are stretched out in the upper end of pump shaft 1
The bottom 4 of case is held, the upper and lower ends of pump shaft 1 are sealed with top cover 3, bottom 4 respectively by sealing mechanism；In the bearing housing, axle
Hold and be provided with oil discharge passage 41 inside the cavity formation shoe cream room between 2 lower surfaces and bottom 4, the bottom 4；Opened inside top cover 3
There is drainback passage 31；The oil-out of the drainback passage 31 is located at the top of bearing 2, and towards the upper surface of bearing 2；The bottom 4
Periphery of the oil inlet of upper oil discharge passage 41 towards pump shaft 1；The lower end of axle sleeve 6 extends downward into the oil-feed of oil discharge passage 41
Below mouthful；The axle sleeve wall of the lower end of axle sleeve 6 is provided with input oil groove 61；With the rotation of pump shaft 1, the input oil groove 61 on axle sleeve 6
The oil inlet of oil discharge passage 41 can be directed at, so as to connect shoe cream room and oil discharge passage 41, and by the lubrication pressure in shoe cream room
Enter in oil discharge passage 41；With the rotation of pump shaft 1, the axle sleeve wall of axle sleeve 6 can close oil inlet, to keep discharge pressure；Go out
The oil-out of oily passage 41 is connected with the oil inlet of drainback passage 31 by oil return pipe 7.
When pump shaft 1 rotates, with the axle sleeve 6 of the tight fit of pump shaft 1 with rotating together with pump shaft, axle sleeve 6 is rotated on axle sleeve 6
Input oil groove 61 when being directed at the oil inlet of oil discharge passage 41, input oil groove 61 connection shoe cream room and oil discharge passage 41, in oil transportation 61
Lubricating oil under the influence of centrifugal force, is dumped into 41 in oil discharge passage；With pump shaft 1 high speed rotate, input oil groove 61 constantly to
Got rid of in oil discharge passage 41 into lubricating oil, so that the liquid continuously flowed is formed in oil discharge passage 41 and oil return pipe 7, with liquid
Body is on the increase, and the pressure of liquid constantly increases in oil discharge passage 41 and oil return pipe 7, so that lubricating oil is pressed into drainback passage
In 31, lubricating oil comes out from the oil-out in drainback passage 31, under fall on the upper surface of bearing 2, then pass through inside bearing 3, pass through
The lower surface of bearing 3 is fallen back in shoe cream room, so that the circulating cooling and lubrication of complete matched bearings 2.
Pump shaft 1 continues to rotate, and input oil groove 61 is separated with the oil inlet of oil discharge passage 41, so that the axle sleeve wall closing of axle sleeve 6
Oil inlet, it is to avoid the lubricating oil in oil discharge passage 41 is back in shoe cream room, is caused in oil discharge passage 41 under the pressure of lubricating oil
Drop, so as to keep discharge pressure.The circle that the lower end of confession pump shaft 1 set to ensure axle sleeve wall to close on oil inlet, bottom 4 is stretched out
Bore dia is equal to the external diameter of axle sleeve 6.
In this specific real mode, the upper end of axle sleeve 6 and the tight fit connection of pump shaft 1, the middle part of axle sleeve 6 and lower end and pump shaft 1
Gap coordinates；The lower end of pump shaft 1 is sealed by the outer face of tubular oil sump 5 and bottom 4；The tubular oil sump 5 includes
The cylinder in axle sleeve 6 and being socketed on pump shaft 1 is inserted, cylinder inboard wall face coordinates with the gap of pump shaft 1, cylinder body outer wall face and axle sleeve 6
Gap coordinates；The cylinder lower end is provided with flange, and flange is fixed by screws on the outer face of bottom 4；The flange laminating
Sealed on the outer face of bottom 4, and by sealing ring and the outer face of bottom 4, set one to accommodate sealing on the outer face of bottom 4
The annular groove of circle, is pressed on the outer face of bottom 4 so that sealing ring makes up flange and bottom by deformation by screw by flange
Gap between 4 outer faces, so as to reach sealing purpose.
By setting tubular oil sump 5 to being sealed between the lower end of pump shaft 1 and bottom 4, in lubricating oil from axle sleeve 6 and bottom
When gap between lid 4 is penetrated into axle sleeve 6, cylinder prevents pump shaft 1 from touching lubricating oil, it is to avoid lubricating oil is along pump shaft 1 from pump
The leakage that the outflow of the lower end of axle 1 is caused；In addition, the flange on tubular oil sump 5 can avoid lubricating oil from being flowed out from the outer face of bottom 4
The leakage caused.
In this specific real mode, the upper and lower ends of oil return pipe 7 pass through the oil-feed of seal nipple and drainback passage 31 respectively
The oil-out connection of mouth and oil discharge passage 41.In such manner, it is possible to the sealing property of return line be provided, so as to ensure circulating oil path
（Oil discharge passage 41, oil return pipe 7 and drainback passage 31）Discharge pressure.
In this specific real mode, the quantity of the input oil groove 61 is two；Axisymmetrical of two input oil grooves on pump shaft 1
Set.So, two symmetrical input oil grooves 61 are set on axle sleeve 6, the oil-feed efficiency of oil discharge passage can be increased so that recycle oil
Road can more quickly fill up lubricating oil, shorten cycle period, so as to improve the radiating efficiency of bearing.
In this specific real mode, the upper end of input oil groove 61 is located above the inner face of bottom 4, and the lower end of input oil groove 61 is located at
Below the oil inlet of oily passage 41.This way it is ensured that the lubricating oil in shoe cream room can smoothly enter input oil groove 61, simultaneously, it is ensured that
Lubricating oil in input oil groove 61 smoothly can enter in oil discharge passage 41.As for the shape of input oil groove 61, input oil groove 61 can be
Vertical slot or width highly more than width are more than the transverse groove of height.
In this specific real mode, the oil discharge passage 41 is arranged on the side of bottom 4, and oil inlet passage 31 is arranged on top cover 3
The upper and identical side of oil discharge passage 41.Due to the inner ring in bearing 2 as pump shaft 1 rotates, it is lubricated to the side of bearing 2
When, with the rotation of the inner ring of bearing 2, the lubricating oil of the side of bearing 2 can be brought to opposite side, so as to also enter to the opposite side of bearing 2
Go and lubricated and absorb heat, so, just only needed to set circulating oil path in the side of bearing housing（Oil discharge passage 41, oil return pipe 7 and
Drainback passage 31）, greatly simplify structure, reduce cost.
Claims (6)
1. being provided with bearing in a kind of bearing in pump case lubricating-oil self-circulating system, including bearing housing, bearing housing, bearing passes through axle
It is locked and is connected with pump shaft；The case lid of bearing housing is stretched out in the pump shaft upper end, and lower end is stretched out above and below the bottom of bearing housing, pump shaft
Two ends are sealed with top cover, bottom respectively by sealing mechanism；In the bearing housing, the cavity between bearing lower surface and bottom
Form shoe cream room, it is characterised in that：Oil discharge passage is provided with inside the bottom；Drainback passage is provided with inside top cover；The oil return
The oil-out of passage is located above bearing, and towards bearing upper surface；The oil inlet of oil discharge passage is towards pump shaft on the bottom
Periphery；The axle sleeve lower end is extended downward into below the oil inlet of oil discharge passage；Set on the axle sleeve wall of the axle sleeve lower end
There is input oil groove；With the rotation of pump shaft, the input oil groove on axle sleeve can be directed at the oil inlet of oil discharge passage, so as to connect shoe cream room
With oil discharge passage, and the lubricating oil in shoe cream room is got rid of in oil discharge passage；With the rotation of pump shaft, the axle sleeve wall of axle sleeve can
Oil inlet is closed, to keep discharge pressure；The oil-out of oil discharge passage is connected with the oil inlet of drainback passage by oil return pipe.
2. bearing in pump case lubricating-oil self-circulating system according to claim 1, it is characterised in that：The axle sleeve upper end with
In the middle part of pump shaft tight fit connection, axle sleeve and lower end coordinates with pump shaft gap；The pump shaft lower end passes through tubular oil sump and bottom
Outer face sealing；The tubular oil sump includes in insertion axle sleeve and is socketed in the cylinder on pump shaft, cylinder inboard wall face and pump
Shaft clearance coordinates, and cylinder body outer wall face coordinates with axle sleeve gap；The cylinder lower end is provided with flange, and flange is fixed by screws in bottom
On the outer face of lid；The flange is fitted on the outer face of bottom, and is sealed by sealing ring and bottom outer face.
3. bearing in pump case lubricating-oil self-circulating system according to claim 1, it is characterised in that：Above and below the oil return pipe
Two ends are connected by the oil-out of the oil inlet of seal nipple and drainback passage, oil discharge passage respectively.
4. bearing in pump case lubricating-oil self-circulating system according to claim 1, it is characterised in that：The number of the input oil groove
Measure as two；Two input oil grooves are set on the axisymmetrical of pump shaft.
5. bearing in pump case lubricating-oil self-circulating system according to claim 1, it is characterised in that：The input oil groove upper end
Above bottom inner face, input oil groove lower end is located at below the oil inlet of oil discharge passage.
6. bearing in pump case lubricating-oil self-circulating system according to claim 1, it is characterised in that：The oil discharge passage is set
Put in the side of bottom, oil inlet passage is arranged on top cover and oil discharge passage identical side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710660688.XA CN107269571B (en) | 2017-08-04 | 2017-08-04 | Self-circulation system for lubricating oil of bearing box for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710660688.XA CN107269571B (en) | 2017-08-04 | 2017-08-04 | Self-circulation system for lubricating oil of bearing box for pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107269571A true CN107269571A (en) | 2017-10-20 |
| CN107269571B CN107269571B (en) | 2023-04-07 |
Family
ID=60075629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710660688.XA Active CN107269571B (en) | 2017-08-04 | 2017-08-04 | Self-circulation system for lubricating oil of bearing box for pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN107269571B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965566A (en) * | 2017-12-29 | 2018-04-27 | 重庆朗奥机械有限公司 | A kind of automobile rotation axis lubricating arrangement |
| CN108626276A (en) * | 2018-05-15 | 2018-10-09 | 中联重机股份有限公司 | A kind of brake cleaning heat dissipation lubricating system |
| CN109973197A (en) * | 2019-03-27 | 2019-07-05 | 盐城海纳汽车零部件有限公司 | A kind of self cooled cooling water pump for engine |
| CN110439804A (en) * | 2019-06-28 | 2019-11-12 | 武汉船用机械有限责任公司 | Lubricating arrangement for deep-well pump drive shaft |
| CN113154237A (en) * | 2021-04-15 | 2021-07-23 | 中国航发湖南动力机械研究所 | Coaxial contra-rotating helicopter transmission system lubricating structure and helicopter |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965566A (en) * | 2017-12-29 | 2018-04-27 | 重庆朗奥机械有限公司 | A kind of automobile rotation axis lubricating arrangement |
| CN108626276A (en) * | 2018-05-15 | 2018-10-09 | 中联重机股份有限公司 | A kind of brake cleaning heat dissipation lubricating system |
| CN109973197A (en) * | 2019-03-27 | 2019-07-05 | 盐城海纳汽车零部件有限公司 | A kind of self cooled cooling water pump for engine |
| CN109973197B (en) * | 2019-03-27 | 2023-11-28 | 盐城海纳汽车零部件有限公司 | Cooling water pump for self-cooling engine |
| CN110439804A (en) * | 2019-06-28 | 2019-11-12 | 武汉船用机械有限责任公司 | Lubricating arrangement for deep-well pump drive shaft |
| CN113154237A (en) * | 2021-04-15 | 2021-07-23 | 中国航发湖南动力机械研究所 | Coaxial contra-rotating helicopter transmission system lubricating structure and helicopter |
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| Publication number | Publication date |
|---|---|
| CN107269571B (en) | 2023-04-07 |
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