CN205478675U - Hydraulic system dynamic pressure balances pressure compensation device under water - Google Patents
Hydraulic system dynamic pressure balances pressure compensation device under water Download PDFInfo
- Publication number
- CN205478675U CN205478675U CN201620156925.XU CN201620156925U CN205478675U CN 205478675 U CN205478675 U CN 205478675U CN 201620156925 U CN201620156925 U CN 201620156925U CN 205478675 U CN205478675 U CN 205478675U
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- piston
- hydraulic system
- chamber enclosure
- pressure
- constant force
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Abstract
The utility model discloses a hydraulic system dynamic pressure balances pressure compensation device under water, including epicoele shell and the cavity of resorption shell that is connected, the water entry has been seted up at epicoele shell top, be provided with constant force spring in the cavity of resorption shell, be provided with the piston with the contact of epicoele shell inner wall in the epicoele shell, the piston is connected with constant force spring, the piston can be in the epicoele shell up -and -down motion, the fluid entry has been seted up to cavity of resorption shell lower part, and place in the oil tank, the oil tank is connected with the constant delivery pump, the constant delivery pump passes through controlling element control, through piston response seawater pressure and with pressure transmission to hydraulic system, pressor effect in advance through constant force spring, make the system pressure a little more than seawater pressure, when outside marine environment pressure changes, the piston removes along the axis, give the system with pressure transmission, because the permanent tensile characteristic of constant force spring, system internal -external differential pressure remains the invariant throughout, prevent extra large water invading hydraulic system.
Description
[technical field]
This utility model belongs to fluid pressure actuator field, is specifically related to a kind of underwater hydraulic system kinetic pressure balancing pressure compensation dress
Put.
[background technology]
China has been enter into the period of exploitation marine resources extensive, multi-faceted, and the development of deep water equipment is to realize seafari
The only way which must be passed of exploitation.For the hydraulic control system of these underwater installations, change greatly at seawater pressure, deep-etching and temperature change
Changing in big this environment, the performance of hydraulic system can be affected, and therefore solves to become the pressure compensation problem of hydraulic system under the depth of water and becomes
For one of key issue that underwater hydraulic system need to solve.
In early days, hydraulic test is generally placed in airtight pressure vessel, resists deep sea pressure by the characteristic of rigid container itself,
But this method not only increases volume of a container, the comparison also making container become is heavy, and the I&M of element is the most extremely difficult.
Existing frequently-used pressure compensator is mainly made up of several parts such as shell, thin film, counterbalance springs, by the deformation of thin film sea water
Pressure transmission is in hydraulic system.But these traditional pressure compensators still suffer from many defects:
1) if the executor of system is asymmetric executor, then owing to the volume in executor two chamber is different, carrying out pressure compensation
Time, the spring deflection that can cause compensator is different so that compensates pressure inconsequent, affects greatly the precision of system.
The i.e. compensation pressure of system is non-constant with the pressure reduction of seawater pressure, and compensation precision is the highest.
2) there is Leakage in traditional pressure compensator.If equipment is short-term job under water, can be to compensation before lower water
Device carries out repairing.If equipment need to carry out long-term work under water, then cannot carry out repairing when equipment works.Therefore compensator
Sealing problem is most important.
[utility model content]
The purpose of this utility model is to overcome above-mentioned deficiency, it is provided that a kind of underwater hydraulic system kinetic pressure balancing pressure compensator, energy
Enough solve that the pressure reduction of current system balance pressure and seawater pressure is non-constant and compensator Leakage.
In order to achieve the above object, this utility model includes the upper chamber enclosure that is connected and lower chamber enclosure, and epicoele cover top portion offers
Water inlet, is provided with constant force spring in lower chamber enclosure, be provided with the piston contacted with epicoele outer casing inner wall in upper chamber enclosure, piston with
Constant force spring connects, and piston can move up and down in upper chamber enclosure, and cavity of resorption outer casing underpart offers fluid entrance, is placed in fuel tank
In, fuel tank connects dosing pump, and dosing pump controls by controlling element.
Described constant force spring is two scroll springs, and the head end of two scroll springs is all connected with piston.
It is coated with filter screen on described water inlet.
Described filter screen is fixed on epicoele shell upper by the second screw.
Described piston be provided centrally with a shrinkage pool, the side of piston offers groove, groove is evenly distributed with eight with recessed
The through hole that hole is connected.
It is provided with sealing ring on the groove of described piston side.
Described sealing ring material uses fluorubber.
Described piston base is provided with T-shaped contiguous block, and T-shaped contiguous block is connected with constant force spring.
Described T-shaped contiguous block is connected with constant force spring by the second bolt.
Described upper chamber enclosure and lower chamber enclosure are connected by the first bolt, and arrange pad on upper chamber enclosure and lower chamber enclosure contact surface.
Compared with prior art, this utility model is applied to hydraulic system and is entirely located in the hydraulic system pressure compensation at deep-sea, releases
The seawater pressure impact on hydraulic system, senses seawater pressure by piston and transfers the pressure to hydraulic system, by constant force bullet
The precharge effect of spring so that system pressure is slightly above seawater pressure, when outside ocean ambient pressure changes, piston is along axle
Line moves, and by pressure transmission to system, due to the characteristic of constant force spring perseverance pulling force, system inside and outside differential pressure remains constant, prevents
Sea water immerses hydraulic system, and system balance precision is high.
Further, constant force spring of the present utility model is two scroll springs, and when sheet metal extends (torsion), internal stress is supported
Anti-loading power, this is just the same with common extension spring, but coefficient is close to constant (zero), and i.e. constant force spring is certain
In working range, spring tension does not changes with the change of deflection of spring, and its output remains constant force output.
Further, this utility model is provided with sealing ring, makes system pressure act on sealing ring by through hole, makes sealing ring jail
Jail is adjacent to outer casing inner wall, keeps the highest tightness, and after long-time use, sealing ring outer ring has trace to wear and tear, but system pressure
Acting on sealing ring inner ring, give its radial expansion force, sealing ring expands outwardly, and remains to be adjacent to outer casing inner wall and keeps well sealing,
Thus improve stability and the life-span of system.
Further, sealing ring material of the present utility model uses fluorubber, and fluorubber, compared with the rubber that other are traditional, has more
Wide working range, excellent oil resistant, chemical-resistant stability, high intensity and the permanent life-span.
[accompanying drawing explanation]
Fig. 1 is the structure chart of this utility model original state；
Fig. 2 is the structure chart of this utility model maximal work position；
Fig. 3 is the half sectional view of this utility model piston；
Fig. 4 is for application example figure of the present utility model.
[detailed description of the invention]
Below in conjunction with the accompanying drawings this utility model is described further.
Seeing Fig. 1, Fig. 2, Fig. 3 and Fig. 4, this utility model includes the upper chamber enclosure 1 that is connected and lower chamber enclosure 6, outside epicoele
Shell 1 and lower chamber enclosure 6 are connected by the first bolt 4, and arrange pad 5 on upper chamber enclosure 1 and lower chamber enclosure 6 contact surface, on
Chamber enclosure 1 top offers water inlet, and water inlet is coated with filter screen 12, and filter screen 12 is fixed on epicoele by the second screw 11
Shell 1 top, is provided with constant force spring 7 in lower chamber enclosure 6, be provided with and upper chamber enclosure 1 contact internal walls in upper chamber enclosure 1
Piston 2, piston 2 is connected with constant force spring 7, and piston 2 can move up and down in upper chamber enclosure 1, and lower chamber enclosure 6 bottom is opened
Being provided with fluid entrance, be placed in fuel tank 13, fuel tank connects dosing pump 14, and dosing pump 14 controls by controlling element, permanent
Power spring 7 is two scroll springs, and the head end of two scroll springs is all connected with piston 2.
Piston 2 be provided centrally with a shrinkage pool, the side of piston 2 offers groove, groove is evenly distributed with eight with recessed
The through hole that hole is connected, the groove of piston 2 side is provided with sealing ring 3, and sealing ring material uses fluorubber, bottom piston 2
Being provided with T-shaped contiguous block 9, T-shaped contiguous block 9 is connected with constant force spring, and T-shaped contiguous block 9 is by the second bolt 8 and constant force
Spring is connected.
Constant force spring is a kind of special extension spring, and they are made up of spiral sheet metal, the interior lateral bend of sheet metal, so
Often circle sheet metal is wound on the circle sheet metal inside it the most tightly
This utility model uses nickel alloy, and it has higher stability and life-span.
When reality is applied, sea water, after filter screen 12 filters, is entered inside compensator by the axially extending bore of upper chamber enclosure 1, will pressure
Power is delivered on piston 2, and piston 2 fluctuates along with the change of seawater pressure, pressure passes to lower chamber enclosure 6 indirectly internal,
Compensator interior media through hole on T-shaped contiguous block 9 enters internal piston through hole and is applied on sealing ring 3, lower chamber enclosure 6
Interior pressure has radial expansion force to sealing ring 3, and time in the pressure transmission of lower chamber enclosure 6 to fuel tank 13, fuel tank 11 returns with hydraulic pressure
The pressure on road can rise or fall therewith, controls element control dosing pump 14 afterwards and makes its oil-out pressure corresponding to circuit pressure
Rise or fall.
Claims (10)
1. underwater hydraulic system kinetic pressure balancing pressure compensator, it is characterized in that: include upper chamber enclosure (1) and the lower chamber enclosure (6) being connected, upper chamber enclosure (1) top offers water inlet, it is provided with constant force spring (7) in lower chamber enclosure (6), the piston (2) with upper chamber enclosure (1) contact internal walls it is provided with in upper chamber enclosure (1), piston (2) is connected with constant force spring (7), piston (2) can move up and down in upper chamber enclosure (1), lower chamber enclosure (6) bottom offers fluid entrance, it is placed in fuel tank (13), fuel tank connects dosing pump (14), dosing pump (14) controls by controlling element.
Underwater hydraulic system kinetic pressure balancing pressure compensator the most according to claim 1, it is characterised in that: described constant force spring (7) is two scroll springs, and the head end of two scroll springs is all connected with piston (2).
Underwater hydraulic system kinetic pressure balancing pressure compensator the most according to claim 1, it is characterised in that: it is coated with filter screen (12) on described water inlet.
Underwater hydraulic system kinetic pressure balancing pressure compensator the most according to claim 3, it is characterised in that: described filter screen (12) is fixed on chamber enclosure (1) top by the second screw (11).
Underwater hydraulic system kinetic pressure balancing pressure compensator the most according to claim 1, it is characterized in that: described piston (2) be provided centrally with a shrinkage pool, offering groove on the side of piston (2), groove is evenly distributed with eight through holes being connected with shrinkage pool.
Underwater hydraulic system kinetic pressure balancing pressure compensator the most according to claim 5, it is characterised in that: it is provided with sealing ring (3) on the groove of described piston (2) side.
Underwater hydraulic system kinetic pressure balancing pressure compensator the most according to claim 6, it is characterised in that: described sealing ring (3) material uses fluorubber.
Underwater hydraulic system kinetic pressure balancing pressure compensator the most according to claim 1, it is characterised in that: described piston (2) bottom is provided with T-shaped contiguous block (9), and T-shaped contiguous block (9) is connected with constant force spring.
Underwater hydraulic system kinetic pressure balancing pressure compensator the most according to claim 8, it is characterised in that: described T-shaped contiguous block (9) is connected with constant force spring by the second bolt (8).
Underwater hydraulic system kinetic pressure balancing pressure compensator the most according to claim 1, it is characterized in that: described upper chamber enclosure (1) and lower chamber enclosure (6) are connected by the first bolt (4), and on upper chamber enclosure (1) and lower chamber enclosure (6) contact surface, pad (5) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620156925.XU CN205478675U (en) | 2016-03-01 | 2016-03-01 | Hydraulic system dynamic pressure balances pressure compensation device under water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620156925.XU CN205478675U (en) | 2016-03-01 | 2016-03-01 | Hydraulic system dynamic pressure balances pressure compensation device under water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205478675U true CN205478675U (en) | 2016-08-17 |
Family
ID=56658809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620156925.XU Expired - Fee Related CN205478675U (en) | 2016-03-01 | 2016-03-01 | Hydraulic system dynamic pressure balances pressure compensation device under water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205478675U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457292A (en) * | 2018-05-25 | 2018-08-28 | 新河县双兴桩工机械有限公司 | A kind of oil pressure balance device for diving apparatus |
-
2016
- 2016-03-01 CN CN201620156925.XU patent/CN205478675U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457292A (en) * | 2018-05-25 | 2018-08-28 | 新河县双兴桩工机械有限公司 | A kind of oil pressure balance device for diving apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20170301 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |