CN106401863A - Swash-plate type hydraulic plunger motor or pump immersed in water for use - Google Patents
Swash-plate type hydraulic plunger motor or pump immersed in water for use Download PDFInfo
- Publication number
- CN106401863A CN106401863A CN201610946678.8A CN201610946678A CN106401863A CN 106401863 A CN106401863 A CN 106401863A CN 201610946678 A CN201610946678 A CN 201610946678A CN 106401863 A CN106401863 A CN 106401863A
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- CN
- China
- Prior art keywords
- water
- bearing
- main shaft
- pump
- type hydraulic
- 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
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
- F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
- F03C1/0602—Component parts, details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
-
- 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
- F04D29/041—Axial thrust balancing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Hydraulic Motors (AREA)
Abstract
The invention discloses a swash-plate type hydraulic plunger motor or pump immersed in water for use. The swash-plate type hydraulic plunger motor or pump immersed in water for use comprises a main shaft (1), a rotating sealing component (2), a shell (4), a swash plate (6), a plunger return mechanism (7), a plunger (8), a cylinder body (9), a valve plate (10) and an end cover (12), and is characterized in that the main shaft (1) is supported by at least three bearings coaxially installed: the bearing A (3), the bearing B (5) and the bearing C (11), at least two bearings in the three bearings are centripetal thrust bearings, and installation directions of the two centripetal thrust bearings are opposite. Two of the three bearings are installed near the outward-extended end of the main shaft (1) and arranged between the rotating sealing component (2) and the swash plate (6). In the swash-plate type hydraulic plunger motor or pump immersed in water for use, the main shaft can bear large axial tension and large axial thrust, and be immersed into deep water for use. An impeller can be directly installed on the main shaft so as to simplify structure, and meanwhile, through the bi-directional pressure bearing sealing component, the effect that water and hydraulic oil can be efficiently insulated when the product is used in deep water can be guaranteed.
Description
Technical field
The invention belongs to Hydraulic Field, the inclined disc type hydraulic plunger motor more particularly to a kind of use submerged in water or
Pump is it is adaptable to drive water impeller（As motor）Or driven by water impeller（As pump）Device.
Background technology
Traditional inclined disc type hydraulic plunger motor or pump, its inner body only applies radial force to main shaft, therefore bearing used
Stronger to radial force bearing capacity, but poor to the bearing capacity of axial force, and product axle head does not allow to apply axial force（Including drawing
Power and thrust）Or only allow to apply less axial force.
Traditional hydraulic clino-axial piston motor or pump, it is internally provided with single or multiple radial thrust bearings, this axle
Hold group and can bear axial tension towards the overhanging direction of main shaft, but inside axial thrust can not be born.If in clino-axis type
The axle head of piston motor or pump applies larger pulling force, and the very big axial thrust load that this pulling force is applied to main shaft with plunger is superimposed,
The service life of product will be greatly reduced；If applying thrust in its axle head, this thrust can not be more than plunger to main shaft
Axial thrust load, that is,：When motor or pump pressure are relatively low, larger axial thrust must not be applied in its axle head, otherwise this power is passed through
The center-pole being hinged on main shaft compresses cylinder body and valve plate by force, is easily caused center-pole bulb and cylinder body and flow side surface
Burn.
Conventional inclined disc type or hydraulic clino-axial piston motor or pump, main shaft rotating seal uses one-way bearing pressure
Sealing member, can only bear intrinsic pressure and can not bear external pressure.
Due to previous reasons, when conventional hydraulic piston motor or pump are used for driving water impeller or are driven by water impeller
During device, because impeller draining produces larger axial force, and impeller changing force direction can accordingly change axially rearward, therefore should not be by leaf
Wheel to be mounted directly on motor or the main shaft of pump, and needs to be separately provided impeller axle, the oil-lubricated bearing supporting this axle or water profit
Plain besring, shaft coupling etc..No matter and using oil-lubricated bearing or water lubriucated bearing, its lubricating condition all cannot be with bearing submergence
Hydraulic oil is compared, bearing needs to adopt bigger specification to improve the life-span.This results in apparatus structure complexity, axial dimension
Greatly, manufacture and working service is relatively costly.Additionally, because shaft seal can only one-way bearing pressure, in deep water use when exist
Water pours in down a chimney the risk into hydraulic plunger motor or pump inner chamber.
If application publication number is the patent of CN 105697388 A《Deepwater hydraulic drives water pump》, impeller is arranged on pump shaft
On, pump shaft is supported by water lubriucated bearing, and pump shaft passes through shaft coupling and hydraulic rotating actuator（I.e. hydraulic motor）Output
Axle is connected；Water pump is additionally provided with for water is caused the lubrication system that water lubriucated bearing is lubricated.
Content of the invention
It is an object of the invention to provide a kind of inclined disc type hydraulic plunger motor of use submerged in water or pump, its main shaft
Very big axial tension can be born, also can bear very big axial thrust, for driving water impeller or being driven by water impeller
During dynamic device, its main shaft can be mounted directly water impeller；Its main shaft rotating seal can be with bidirectional bearing, even if submergence
Use in deep water, also can effectively separate water and hydraulic oil.
The purpose of the present invention and solve its technical problem underlying and employ the following technical solutions to realize：One kind is immersed in
Inclined disc type hydraulic plunger motor or pump used in water, including main shaft, rotating seal, housing, swash plate, plunger return mechanism,
Plunger, cylinder body, valve plate and end cap are it is characterised in that described main shaft is at least by three coaxial mounted bearings：Bearing
A, bearing B and bearing C, in three bearings, at least two bearings are radial thrust bearing, and two radial thrust bearings are installed
In opposite direction.
The overhanging end having two bearings to be arranged close to main shaft in described three bearings, and it is in rotating seal and swash plate
Between.
Described rotating seal be both sides all can pressure-bearing sealing member, specifically skeleton-type oil seal or mechanical type oil sealing or
A combination of both.
Axial hole and the radial hole being connected with axial hole are had on described main shaft, and radial hole be arranged on rotating seal and
Between the bearing A of this rotating seal.
Described main shaft adopts the rustless steel of seawater corrosion resistance.
Described housing, end cap adopt rustless steel or the bronze material of seawater corrosion resistance, the streamlined design of profile.
Described oblique disk structure adopts determines angle swash plate or varied angle swash plate.
Described plunger return mechanism adopts ball pivot backhaul dish structure or determines gap return structures.
Patent of the present invention compared with prior art has clear advantage and beneficial effect.From above technical scheme,
Patent of the present invention has advantages below：
1）Very big axial tension can be born on main shaft, also can bear very big axial thrust；Can be immersed in deep water should
With.
2）By setting axial hole and radial hole on main shaft, so that fluid is formed in housing intracavity using centrifugal force and circulate,
Bearing is cooled down and is rinsed, be conducive to improving bearing life；
3）For drive water impeller or driven by water impeller device when, can directly impeller be arranged on main shaft, need not
In addition support shaft, bearing and shaft coupling being set for impeller, thus significantly simplifying apparatus structure, significantly reducing its axial dimension, fall
Low manufacturing cost and working service cost.
4）Also water and hydraulic oil can be effectively separated when the sealing member of bidirectional bearing may insure that product uses in deep water.
Brief description
Fig. 1 is the structural representation of the present invention,
Fig. 2 is another embodiment of the present invention,
In figure labelling：1st, main shaft, 2, rotating seal, 3, bearing A, 4, housing, 5, bearing B, 6, swash plate, 7, plunger backhaul machine
Structure, 8, plunger, 9, cylinder body, 10, valve plate, 11, bearing C, 12, end cap.
H1, axial hole, h2, radial hole.
Specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment, oblique to the use a kind of submerged in water proposing according to patent of the present invention
Disc hydraulic piston motor or pump specific embodiment, feature and its effect, after describing in detail such as.
Referring to Fig. 1-2, a kind of inclined disc type hydraulic plunger motor of use submerged in water or pump, close including main shaft 1, rotation
Sealing 2, housing 4, swash plate 6, plunger return mechanism 7, plunger 8, cylinder body 9, valve plate 10 and end cap 12 it is characterised in that：Described
Main shaft 1 at least by three coaxial mounted bearings：Bearing A3, bearing B5 and bearing C11, at least two in three bearings
Individual bearing is radial thrust bearing, and two radial thrust bearing installation directions are contrary.
The overhanging end having two bearings to be arranged close to main shaft 1 in three described bearings, and it is in rotating seal 2 He
Between swash plate 6；In described three bearings, at least two bearings adopt radial thrust bearing, specifically can adopt taper roll bearing
Or angular contact ball bearing；Preferably, the 3rd bearing outside two radial thrust bearings is using permission main shaft axial float
Bearing：Needle bearing, inner ringless roller bearing or DU bearing, but the bearing of other forms can also be used.
Described rotating seal 2 be both sides all can pressure-bearing sealing member, specifically skeleton-type oil seal or mechanical type oil sealing
Or a combination of both.
The axial hole h1 and radial hole h2 being connected with axial hole h1 is had on described main shaft 1, and radial hole h2 is arranged on rotation
Turn sealing member 2 and between the bearing A3 of this rotating seal.
Described main shaft 1 adopts the rustless steel of seawater corrosion resistance.
Described housing 4, end cap 5 adopt rustless steel or the bronze material of seawater corrosion resistance；Described housing 4, end cap 5 profile are in
Airflow design.
Described swash plate 6 structure adopts determines angle swash plate or varied angle swash plate.
Described plunger return mechanism 7 adopts ball pivot backhaul dish structure or determines gap return structures.
Described plunger 8 is odd number, and using 7 or 9, circumference uniform distribution is arranged on cylinder body plunger in the hole.
The main shaft of the present invention can bear very big axial tension, also can bear very big axial thrust, and can be immersed in depth
Use in water.When product of the present invention be used for driving water impeller or driven by water impeller device when, can directly impeller be pacified
Being contained on main shaft, in addition support shaft, bearing and shaft coupling need not be set for impeller, thus significantly simplifying apparatus structure, significantly subtracting
Its axial dimension little, reduces manufacturing cost and working service cost.Meanwhile, the sealing member of bidirectional bearing may insure product in depth
Also water and hydraulic oil can be effectively separated when using in water.
The above, be only the preferred embodiment of patent of the present invention, not patent of the present invention is made any formal
Restriction, any without departing from art solutions content of the present invention, according to patent of the present invention technical spirit to above example
Any simple modification, equivalent variations and the modification made, all still falls within the range of art solutions of the present invention.
Claims (8)
1. a kind of inclined disc type hydraulic plunger motor of use submerged in water or pump, including main shaft（1）, rotating seal（2）, shell
Body（4）, swash plate（6）, plunger return mechanism（7）, plunger（8）, cylinder body（9）, valve plate（10）And end cap（12）, its feature exists
In：Described main shaft（1）At least by three coaxial mounted bearings：Bearing A（3）, bearing B（5）With bearing C（11）, three
In individual bearing, at least two bearings are radial thrust bearing, and two radial thrust bearing installation directions are contrary.
2. as claimed in claim 1 a kind of inclined disc type hydraulic plunger motor of use submerged in water or pump it is characterised in that：
Two of which bearing in described three bearings is arranged close to main shaft（1）Overhanging end, and be in rotating seal（2）With oblique
Disk（6）Between.
3. as claimed in claim 1 a kind of inclined disc type hydraulic plunger motor of use submerged in water or pump it is characterised in that：
Described rotating seal（2）For both sides all can pressure-bearing sealing member, specifically skeleton-type oil seal or mechanical type oil sealing or both
Combination.
4. as claimed in claim 1 a kind of inclined disc type hydraulic plunger motor of use submerged in water or pump it is characterised in that：
Described main shaft（1）On have axial hole（h1）And with axial hole（h1）The radial hole of connection（h2）, and radial hole（h2）It is arranged on
Rotating seal（2）With the bearing A near this rotating seal（3）Between.
5. as claimed in claim 1 a kind of inclined disc type hydraulic plunger motor of use submerged in water or pump it is characterised in that：
Described main shaft（1）Rustless steel using seawater corrosion resistance.
6. as claimed in claim 1 a kind of inclined disc type hydraulic plunger motor of use submerged in water or pump it is characterised in that：
Described housing（4）, end cap（5）Rustless steel or bronze material using seawater corrosion resistance；Described housing（4）, end cap（5）Profile is in
Airflow design.
7. as claimed in claim 1 a kind of inclined disc type hydraulic plunger motor of use submerged in water or pump it is characterised in that：
Described swash plate（6）Structure adopts determines angle swash plate or varied angle swash plate.
8. as claimed in claim 1 a kind of inclined disc type hydraulic plunger motor of use submerged in water or pump it is characterised in that：
Described plunger return mechanism（7）Using ball pivot backhaul dish structure or determine gap return structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610946678.8A CN106401863B (en) | 2016-10-26 | 2016-10-26 | A kind of inclined disc type hydraulic plunger motor or pump submerged in water used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610946678.8A CN106401863B (en) | 2016-10-26 | 2016-10-26 | A kind of inclined disc type hydraulic plunger motor or pump submerged in water used |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106401863A true CN106401863A (en) | 2017-02-15 |
| CN106401863B CN106401863B (en) | 2019-01-29 |
Family
ID=58013893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610946678.8A Active CN106401863B (en) | 2016-10-26 | 2016-10-26 | A kind of inclined disc type hydraulic plunger motor or pump submerged in water used |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106401863B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2328811Y (en) * | 1997-09-23 | 1999-07-14 | 阎学富 | Electromagnetic control variable axial plunger pump |
| CN1434209A (en) * | 2003-02-21 | 2003-08-06 | 华中科技大学 | Axial plunger type water hydraulic pump |
| CN101598119A (en) * | 2009-06-29 | 2009-12-09 | 启东市东方高压油泵厂 | A kind of coaxial plunger high-pressure oil pump |
| CN104454420A (en) * | 2014-12-11 | 2015-03-25 | 浙江大学 | Inclined-disc-rotating internally-disposed valve flow distribution axial plunger pump |
| CN104500327A (en) * | 2014-11-26 | 2015-04-08 | 宁波中意液压马达有限公司 | Axial plunger motor |
| CN104612956A (en) * | 2014-12-11 | 2015-05-13 | 无锡市华科力士水液压有限公司 | Variable axial plunger type water pump with full-water lubrication |
| CN206221142U (en) * | 2016-10-26 | 2017-06-06 | 九江七所精密机电科技有限公司 | A kind of inclined disc type hydraulic plunger motor or pump for using submerged in water |
-
2016
- 2016-10-26 CN CN201610946678.8A patent/CN106401863B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2328811Y (en) * | 1997-09-23 | 1999-07-14 | 阎学富 | Electromagnetic control variable axial plunger pump |
| CN1434209A (en) * | 2003-02-21 | 2003-08-06 | 华中科技大学 | Axial plunger type water hydraulic pump |
| CN101598119A (en) * | 2009-06-29 | 2009-12-09 | 启东市东方高压油泵厂 | A kind of coaxial plunger high-pressure oil pump |
| CN104500327A (en) * | 2014-11-26 | 2015-04-08 | 宁波中意液压马达有限公司 | Axial plunger motor |
| CN104454420A (en) * | 2014-12-11 | 2015-03-25 | 浙江大学 | Inclined-disc-rotating internally-disposed valve flow distribution axial plunger pump |
| CN104612956A (en) * | 2014-12-11 | 2015-05-13 | 无锡市华科力士水液压有限公司 | Variable axial plunger type water pump with full-water lubrication |
| CN206221142U (en) * | 2016-10-26 | 2017-06-06 | 九江七所精密机电科技有限公司 | A kind of inclined disc type hydraulic plunger motor or pump for using submerged in water |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106401863B (en) | 2019-01-29 |
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