CN108662018A - A kind of water lubrication dislocation thrust bearing - Google Patents
A kind of water lubrication dislocation thrust bearing Download PDFInfo
- Publication number
- CN108662018A CN108662018A CN201810688548.8A CN201810688548A CN108662018A CN 108662018 A CN108662018 A CN 108662018A CN 201810688548 A CN201810688548 A CN 201810688548A CN 108662018 A CN108662018 A CN 108662018A
- Authority
- CN
- China
- Prior art keywords
- rotor
- thrust bearing
- water
- disk
- mother
- 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.)
- Withdrawn
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 238000005461 lubrication Methods 0.000 title claims abstract description 28
- 230000001050 lubricating effect Effects 0.000 claims abstract description 41
- 230000003068 static effect Effects 0.000 claims abstract description 41
- 238000007906 compression Methods 0.000 claims abstract description 12
- 230000006835 compression Effects 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 9
- 229920006351 engineering plastic Polymers 0.000 abstract description 5
- 239000007769 metal material Substances 0.000 abstract description 2
- 210000004907 gland Anatomy 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000010723 turbine oil Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
- F16C17/08—Sliding-contact bearings for exclusively rotary movement for axial load only for supporting the end face of a shaft or other member, e.g. footstep bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0629—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion
- F16C32/064—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion the liquid being supplied under pressure
- F16C32/0644—Details of devices to control the supply of liquids to the bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0629—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion
- F16C32/064—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion the liquid being supplied under pressure
- F16C32/0651—Details of the bearing area per se
- F16C32/0655—Details of the bearing area per se of supply openings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
Abstract
The invention discloses a kind of water lubrication dislocation thrust bearings, are made of along rotor axial location dislocation arrangement male rotor water lubricating thrust bearing and mother rotor water lubricating thrust bearing.Water lubricating thrust bearing is made of dynamicthrust disk and static thrust disk, and the material of one of disk is metal material, and the material of another disk is engineering plastics.The compression process of water lubrication helical-lobe compressor is close to isotherm compression, to keep its single machine pressure at expulsion higher (gauge pressure 1.5MPa), ensure the durability of water lubricating thrust bearing simultaneously, the present invention arranges male rotor water lubricating thrust bearing and mother rotor water lubricating thrust bearing along rotor axial location dislocation, aforementioned structure can greatly increase the loaded area of engineering plastics thrust disc, to significantly improve the service life of water lubricating thrust bearing.The present invention can significantly improve the service life of water lubrication helical-lobe compressor thrust bearing, while improve the pressure at expulsion of water lubrication helical-lobe compressor.
Description
Technical field
The present invention relates to Compressor Technology field, more particularly to a kind of water lubrication dislocation thrust bearing.
Background technology
Currently, the single-stage pressure at expulsion of the water-lubricated compressor on domestic and international market is all relatively low, main difficulty among these
Point is to require the self-lubricating property of material for sliding bearing and wear-resisting property will be very high under conditions of water makees lubricant, because of water
Viscosity it is very low with respect to the viscosity of mineral oil, i.e., at 40 DEG C, the absolute viscosity of water is about the 1/82 of turbine oil.So water exists
Water between the sliding bearing loading end of rotation is Newtonian fluid, i.e. its viscosity meets newtonian viscous calculation formula：τ=η du/
dy.Due to the viscosity very little η of water, the size finite value of the velocity gradient du/dy of water film surface, therefore, sliding bearing loading end
Between moisture film suffered by Friction Shearing Stress τ very littles, moisture film is difficult to be formed.Because of the bearing capacity of lubricating liquid film in sliding bearing
It is directly proportional to its viscosity, and square be inversely proportional with thickness of liquid film, therefore, if other conditions are the same, to obtain phase
Deng bearing capacity, then the thickness of moisture film is only the 1/8 of oil film thickness.Along with plain bearing bush and axle journal process it is coarse
It influences, it is easy to bearing shell and axle journal mixed film friction during the work time occur.Based on previous reasons, water lubrication thrust axis in the market
It holds and is made of the disk that a material is metal material and the disk that a material is engineering plastics.Wherein.Wherein, material is engineering plastic
The disk of material, material itself have certain self lubricity.Currently, the compression process of water-lubricated compressor is close to isotherm compression,
Its single-stage pressure at expulsion is no more than gauge pressure 1.3MPa, so, the suitable low speed of existing water lubriucated bearing passs the water lubrication of pressure at expulsion
Compressor uses.
In conclusion the self-lubricating property and wearability of engineering plastics are at restriction water-lubricated compressor in water lubriucated bearing
The restraining factors developed to high speed and high pressure at expulsion direction.
Invention content
The technical problem to be solved by the present invention is to provide the rotating speed that can improve water lubrication helical-lobe compressor and pressures at expulsion
A kind of water lubrication dislocation thrust bearing.
The technical solution adopted by the present invention to solve the technical problems is：A kind of water lubrication dislocation thrust bearing, including pressure
Contracting machine ontology is provided with intermeshing male rotor and mother rotor in the compressor body, further includes being mounted on male rotor one
The male rotor water lubricating thrust bearing of side and mother rotor water lubricating thrust bearing mounted on mother rotor side, the male rotor water
Lubricating thrust bearing include be mounted on casing on male rotor static thrust disk and the male rotor dynamicthrust disk in male rotor,
The mother rotor water lubricating thrust bearing includes the mother rotor static thrust disk being mounted on casing and the mother on mother rotor
Rotor dynamicthrust disk, the male rotor water lubricating thrust bearing and mother rotor water lubricating thrust bearing are along male rotor and mother rotor
Axial position dislocation arrangement.
It is further：The mother rotor water lubricating thrust bearing is located at close to the position of compressor body compression chamber.
It is further：The male rotor water lubricating thrust bearing is located remotely from the position of compressor body compression chamber, institute
State outside or inside that male rotor water lubricating thrust bearing is located at mother rotor water lubricating thrust bearing.
It is further：Mother rotor dynamicthrust disk and the maximum outside diameter of mother rotor static thrust disk subtract less than compressor centre-to-centre spacing
Go the minimum outer diameter of male rotor dynamicthrust disk and male rotor static thrust disk junction.
It is further：The male rotor water lubricating thrust bearing and mother rotor water lubricating thrust bearing are along rotor axial position
It sets dislocation and is arranged in compressor body low-pressure side.
It is further：The male rotor water lubricating thrust bearing and mother rotor water lubricating thrust bearing are along rotor axial position
It sets dislocation and is arranged in compressor body high-pressure side.
The beneficial effects of the invention are as follows：Compared with prior art, a kind of water lubrication dislocation thrust bearing of the present invention,
Utilize existing water lubricating bearing material, the carrying for the male rotor water lubricating thrust bearing that has been multiplied by cleverly structure design
The loaded area of area and mother rotor water lubricating thrust bearing, while the linear velocity of water lubricating thrust bearing outer rim is improved with more
Add and is easy to be formed complete Water film lubricating.Water lubrication dislocation thrust bearing of the present invention can improve turning for water lubrication helical-lobe compressor
Speed and pressure at expulsion, and the service life of screw rod mechanism greatly improved, equipment investment cost is reduced, there is market very much
Value.
Description of the drawings
Fig. 1 is compressor low-pressure side design dislocation Designing Thrust Bearing structure chart using the present invention；
Fig. 2 is that compressor low-pressure side design dislocation thrust bearing host using the present invention stretches out axis side view；
Fig. 3 is compressor low-pressure side design dislocation thrust bearing host thrust bearing water supply side view using the present invention；
Fig. 4 is design dislocation Designing Thrust Bearing structure chart in compressor high-pressure side using the present invention；
In figure label for：1-male rotor thrust bearing feed pipe；2-male rotor thrust disc glands；3-screws；4-is public
Rotor static thrust disk；5-male rotor dynamicthrust disks；6-male rotor dynamicthrust disk lock screws；7-mother rotor thrust disc glands；
8-male rotor low-pressure side bearing holder (housing, cover)s；9-casings；10-male rotors；11-exhaust bearing blocks；12-male rotor high pressure side bearings
Set；13-male rotor high pressure side bearings；14-locking axle sleeves；15-end caps；16-axle envelopes；17-glands；18-screws；19—
End cap lock-screw 20-mother rotor high pressure side bearing；21-mother rotor high-pressure side bearing holder (housing, cover)s；22-mother rotor axle envelopes；23-machines
Shell lock-screw；24-mother rotors；25-mother rotor bearing holder (housing, cover)s；26-mother rotor dynamicthrust disks；27-mother rotor static thrust disks；
28-mother rotor static thrust disk lock screws；29-mother rotor dynamicthrust disk lock screws；30-mother rotor thrust bearings supply water
Pipe, 31-male rotor dynamicthrust disk stainless steel brackets；32-mother rotor static thrust disk stainless steel brackets.
Specific implementation mode
The present invention is further described with reference to the accompanying drawings and detailed description.
As shown in Figure 1 to Figure 2 for be it is using the present invention compressor low-pressure side design dislocation Designing Thrust Bearing structure
Figure, belongs to the first embodiment of the present invention, as shown, the compressor body includes male rotor thrust bearing feed pipe 1, public affairs
Rotor propulsion disc gland 2, screw 3, male rotor static thrust disk 4, male rotor dynamicthrust disk 5, male rotor dynamicthrust disk lock screw
6, mother rotor thrust disc gland 7, male rotor low-pressure side bearing holder (housing, cover) 8, casing 9, male rotor 10, exhaust bearing block 11, male rotor are high
Press side axle bearing sleeve 12, male rotor high pressure side bearing 13, locking axle sleeve 14, end cap 15, axle envelope 16, gland 17, screw 18, end cap lock
Tight screw 19, mother rotor high pressure side bearing 20, mother rotor high-pressure side bearing holder (housing, cover) 21, mother rotor axle envelope 22, casing lock-screw 23,
Mother rotor 24, mother rotor bearing holder (housing, cover) 25, mother rotor dynamicthrust disk 26, mother rotor static thrust disk 27, the locking of mother rotor static thrust disk
Screw 28, mother rotor dynamicthrust disk lock screw 29 and mother rotor thrust bearing feed pipe 30,4 He of male rotor static thrust disk
Male rotor dynamicthrust disk 5 is mounted on male rotor one end, and the mother rotor static thrust disk 27 and mother rotor dynamicthrust disk 26 are mounted on
24 one end of mother rotor, rotor dynamicthrust disk 26 are located at mother rotor static thrust disk 27 close to the position of compression chamber；Meanwhile it is described
Male rotor static thrust disk 4 is located remotely from the position of compression chamber with male rotor dynamicthrust disk 5, and at the same time positioned at of the present invention
The outside of mother rotor dynamicthrust disk 26 and mother rotor static thrust disk 27 so that aforementioned this male rotor static thrust disk 4 and male rotor
Dynamicthrust disk 5 and mother rotor dynamicthrust disk 26 and the position of mother rotor static thrust disk 27 are rendered as mistake just along rotor axial position
Position state due in helical-lobe compressor male rotor axial gas forces be much larger than mother rotor axial gas forces characteristic, bear
The thrust bearing loading end of male rotor axial gas forces should be greater than bearing the thrust bearing loading end of mother rotor axial gas forces, base
It is designed in dislocation above-mentioned so that the loaded area of male rotor static thrust disk 4 and male rotor dynamicthrust disk 5 can be according to compressor
Pressure at expulsion height, which facilitates, adjusts its designed size, and outer diameter size is unrestricted.Aforementioned mother rotor dynamicthrust disk 26 with
The maximum outside diameter of mother rotor static thrust disk 27 subtracts male rotor dynamicthrust disk 5 and male rotor static thrust disk less than compressor centre-to-centre spacing
The minimum outer diameter of 4 junctions, male rotor static thrust disk 4 withstand the axial gas forces of male rotor 10, mother rotor static thrust Pan27Ding
The firmly axial gas forces of mother rotor 24, this compressor have been multiplied male rotor water lubrication thrust axis by cleverly structure design
The loaded area of the loaded area and mother rotor water lubricating thrust bearing held, while improving the line of water lubricating thrust bearing outer rim
Speed improves the rotating speed and pressure at expulsion of water lubrication helical-lobe compressor to be more prone to be formed complete Water film lubricating,
And the service life that screw rod mechanism greatly improved, reduces equipment investment cost.
As shown in Fig. 4 using the present invention to design dislocation Designing Thrust Bearing structure chart in compressor high-pressure side, belong to
In the second embodiment of the present invention, heretofore described male rotor static thrust disk 4 uses screw lock with exhaust bearing block 11.Revolution
Sub- dynamicthrust disk 5 locks male rotor with male rotor dynamicthrust disk stainless steel brackets 31 by male rotor dynamicthrust disk lock screw 6
10 on exhaust end axis.Mother rotor dynamicthrust disk 26 is locked at mother with mother rotor 24 by mother rotor dynamicthrust disk lock screw 29
Rotor 24 is on exhaust end axis.Mother rotor static thrust disk 27 is existed with mother rotor static thrust disk stainless steel brackets 32 by screw lock
It is vented on bearing block 11.Also, male rotor static thrust disk 4 turns with mother rotor dynamicthrust disk 26 with female with male rotor dynamicthrust disk 5
Sub- static thrust disk 27 is axially disposed in compressor high-pressure side；Moreover, male rotor static thrust disk 4 and 5 phase of male rotor dynamicthrust disk
To the position of mother rotor dynamicthrust disk 26 and mother rotor static thrust disk 27, there are two types of design schemes：One is male rotor static thrust disk
4 can design the close compression in opposite mother rotor dynamicthrust disk 26 and mother rotor static thrust disk 27 with male rotor dynamicthrust disk 5
The position of chamber, i.e. mother rotor dynamicthrust disk 26 are with mother rotor static thrust disk 27 along the left side in direction shown in Fig. 4；The second is male rotor
Static thrust disk 4 can be designed with male rotor dynamicthrust disk 5 in opposite mother rotor dynamicthrust disk 26 and mother rotor static thrust disk 27
Position far from compression chamber, i.e. mother rotor dynamicthrust disk 26 are with mother rotor static thrust disk along the right side in direction 27 shown in Fig. 4.Equally
The loaded area of male rotor water lubricating thrust bearing that can be multiplied by way of this dislocation arrangement and mother rotor water moisten
The loaded area of sliding thrust bearing, while it is complete to be more prone to be formed to improve the linear velocity of water lubricating thrust bearing outer rim
Water film lubricating, while the rotating speed and pressure at expulsion of water lubrication helical-lobe compressor are improved, and screw rod mechanism greatly improved
Service life reduces equipment investment cost.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical solution and advantageous effect
It describes in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the present invention
Within the scope of shield.
Claims (6)
- The thrust bearing 1. a kind of water lubrication misplaces, including compressor body are provided in the compressor body intermeshing Male rotor (10) and mother rotor (24) further include the male rotor water lubricating thrust bearing mounted on male rotor (10) side and installation Mother rotor water lubricating thrust bearing in mother rotor (24) side, the male rotor water lubricating thrust bearing include being mounted on casing On male rotor static thrust disk (4) and the male rotor dynamicthrust disk (5) in male rotor, the mother rotor water lubrication thrust Bearing include be mounted on casing on mother rotor static thrust disk (27) and the mother rotor dynamicthrust disk (26) on mother rotor, It is characterized in that：The axis of the male rotor water lubricating thrust bearing and mother rotor water lubricating thrust bearing along male rotor and mother rotor It is arranged to location dislocation.
- The thrust bearing 2. a kind of water lubrication as described in claim 1 misplaces, it is characterised in that：The mother rotor water lubrication thrust Bearing is located at close to the position of compressor body compression chamber.
- The thrust bearing 3. a kind of water lubrication as described in claim 1 misplaces, it is characterised in that：The male rotor water lubrication thrust Bearing is located remotely from the position of compressor body compression chamber, and the male rotor water lubricating thrust bearing, which is located at mother rotor water lubrication, to be pushed away The outside or inside of power bearing.
- The thrust bearing 4. a kind of water lubrication as claimed in claim 1,2 or 3 misplaces, it is characterised in that：Mother rotor dynamicthrust disk (26) male rotor dynamicthrust disk (5) and revolution are subtracted less than compressor centre-to-centre spacing with the maximum outside diameter of mother rotor static thrust disk (27) The minimum outer diameter of sub- static thrust disk (4) junction.
- The thrust bearing 5. a kind of water lubrication as claimed in claim 1,2 or 3 misplaces, it is characterised in that：The male rotor water profit Sliding thrust bearing and mother rotor water lubricating thrust bearing are arranged in compressor body low-pressure side along rotor axial location dislocation.
- The thrust bearing 6. a kind of water lubrication as claimed in claim 1,2 or 3 misplaces, it is characterised in that：The male rotor water profit Sliding thrust bearing and mother rotor water lubricating thrust bearing are arranged in compressor body high-pressure side along rotor axial location dislocation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810688548.8A CN108662018A (en) | 2018-06-28 | 2018-06-28 | A kind of water lubrication dislocation thrust bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810688548.8A CN108662018A (en) | 2018-06-28 | 2018-06-28 | A kind of water lubrication dislocation thrust bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108662018A true CN108662018A (en) | 2018-10-16 |
Family
ID=63773415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810688548.8A Withdrawn CN108662018A (en) | 2018-06-28 | 2018-06-28 | A kind of water lubrication dislocation thrust bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108662018A (en) |
-
2018
- 2018-06-28 CN CN201810688548.8A patent/CN108662018A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181016 |
|
| WW01 | Invention patent application withdrawn after publication |