CN110469563A - Hydraulic compensating device and hydraulic system under a kind of Combined water - Google Patents
Hydraulic compensating device and hydraulic system under a kind of Combined water Download PDFInfo
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- CN110469563A CN110469563A CN201910871236.5A CN201910871236A CN110469563A CN 110469563 A CN110469563 A CN 110469563A CN 201910871236 A CN201910871236 A CN 201910871236A CN 110469563 A CN110469563 A CN 110469563A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 239000003921 oil Substances 0.000 claims abstract description 79
- 239000010729 system oil Substances 0.000 claims abstract description 29
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 24
- 239000013589 supplement Substances 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 11
- 241000237983 Trochidae Species 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 4
- 239000003643 water by type Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 14
- 230000004044 response Effects 0.000 abstract description 3
- 230000006978 adaptation Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 208000032750 Device leakage Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/006—Compensation or avoidance of ambient pressure variation
Abstract
The invention discloses hydraulic compensating devices under a kind of Combined water, including passive type compensation device and active compensation device, it further include pressure vessel, active compensation device is placed in pressure vessel, passive type compensation device is set to outside pressure vessel, the output end of active compensation device, the output end of passive type compensation device is connected with the oil return line of hydraulic system, hydraulic oil is respectively arranged with inside pressure vessel and the oil pocket of passive type compensation device, passive type compensation device is equipped with the first pressure sensor for perceiving extraneous lateral pressure, for perceiving the second pressure sensor of hydraulic system oil return lateral pressure, and first pressure sensor is connected with active compensation device with second pressure sensor, when the pressure of extraneous side and hydraulic system oil return side is not equal, active compensation device carries out pressure compensation and oil mass supplement.The present invention combines the advantages of active and passive formula compensation device, can not only carry out big flow adjusting, but can quick response pressure compensation, it is relatively reliable.
Description
Technical field
The present invention relates to compensation hydraulic technical fields, specifically, being related to hydraulic compensating device under a kind of Combined water.This
Outside, a kind of hydraulic system including said combination formula underwater hydraulic compensation device is especially further related to.
Background technique
Hydraulic system will receive the influence of hydraulic pressure or mud pressure under water or under slurry environment, such as with water level
Rise or fall, when load of the hydraulic actuator of hydraulic system, is continually changing, in order to maintain pressure output constant, needs
Pressure compensation effect is carried out to HYDRAULIC CONTROL SYSTEM branch.
Current hydraulic pressure compensation technique mainly includes two kinds of forms, respectively passive type compensation device and active benefit
Repay device.Wherein, passive type compensation device mainly utilizes elastic element sensing external environment pressure, and by ambient pressure environment
It is transferred to inside hydraulic system, is adapted hydraulic system oil return lateral pressure and ambient pressure environment, to guarantee Hydraulic Elements
Normal work.Active compensation device then utilizes sensor sensing ambient pressure environment, actively changes system by proportioning valve etc.
System return pressure is adapted hydraulic system oil return lateral pressure and ambient pressure environment, to guarantee the normal work of Hydraulic Elements
Make.
Passive type compensation device can directly incude ambient pressure, can carry out quick compensation system pressure, but due to passive type
Compensation device finite volume, is not suitable for the hydraulic system of big flow variation, and is difficult to compensate for the oil liquid leakage of system；It is active
Compensation device is suitable for the hydraulic system of big flow variation, the oil liquid leakage of energy Active Compensation system, but active compensation device
There are water or mud to enter inside hydraulic motor in if, it will cause motor damage, hydraulic system, which is run quickly, bursts.In addition, in hydraulic motor
Portion's hydraulic oil radiating condition is very poor, and outside can not carry out heat exchange, influences motor life.
In conclusion how to provide a kind of dress for being able to solve the problems of hydraulic compensating device in the prior art
It sets, is a problem to be solved by those skilled in the art.
Summary of the invention
In view of this, being combined active the object of the present invention is to provide hydraulic compensating device under a kind of Combined water
The advantages of compensation device and passive type compensation device, can not only carry out big flow adjusting, but can quick response carry out pressure compensation, solution
It has determined problems of the prior art, it is relatively reliable.
It is a further object of the present invention to provide a kind of hydraulic system including said combination formula underwater hydraulic compensation device,
Pressure compensation effect is more preferable.
To achieve the goals above, the invention provides the following technical scheme:
Hydraulic compensating device under a kind of Combined water, including passive type compensation device and active compensation device, passive type
Compensation device is equipped with the opening for sensing external environment pressure, further includes pressure vessel, active compensation device is placed in pressure resistance
In container, the passive type compensation device is set to outside the pressure vessel, and output end, the passive type of active compensation device are mended
The output end for repaying device is connected with the oil return line of hydraulic system, fills inside pressure vessel and the oil pocket of passive type compensation device
There is hydraulic oil, passive type compensation device is equipped with for perceiving the first pressure sensor of extraneous lateral pressure, hydraulic for perceiving
The second pressure sensor of system oil return lateral pressure, and first pressure sensor and second pressure sensor with active compensation
Device is connected, when the pressure of extraneous side and hydraulic system oil return side does not wait, active compensation device progress pressure compensation and oil
Amount supplement.
Preferably, active compensation device includes for receiving the first pressure sensor, second pressure sensor letter
Number and can actively control system that hydraulic motor and proportional pressure control valve are controlled to adjust, be used to adjust pressure and oil mass mended
Proportional pressure control valve, the hydraulic motor repaid all are connected to the control system, for provided for hydraulic motor the motor of power support with
Hydraulic motor is connected.
Preferably, oil liquid falls when being provided between proportional pressure control valve and hydraulic motor for preventing hydraulic motor out of service
The check valve of stream.
Preferably, passive type compensation device includes shell, elastic element in the housing is arranged and is arranged in elastic member
The outer rim of diaphragm on part, diaphragm is connect with the shell of passive type compensation device, and shell is divided into the oil pocket for being used for oil storage
With the external cavity for elastic element to be arranged.
Preferably, a top shell is provided on elastic element, top shell has the pushing part for contacting and pushing diaphragm, pushes away
The inner wall of dynamic portion and passive type compensation device has gap.
Preferably, hydraulic oil is filled inside pressure vessel and the oil pocket of passive type compensation device.
Preferably, the position that first pressure sensor is set in passive type compensation device, is in communication with the outside, second pressure
Sensor is set on the oil pocket position of passive type compensation device.
Preferably, the components of passive type compensation device are waterproof case.
A kind of hydraulic system, including hydraulic compensating device, the hydraulic compensating device are combination described in any of the above embodiments
Formula underwater hydraulic compensation device.
Hydraulic compensating device under a kind of Combined water provided by the invention, including passive type compensation device and active compensation
Device, passive type compensation device are equipped with the opening for sensing external environment pressure, further include pressure vessel, active compensation dress
It is placed in pressure vessel, passive type compensation device is set to outside pressure vessel, output end, the passive type of active compensation device
The output end of compensation device is connected with the oil return line of hydraulic system, inside the oil pocket of pressure vessel and passive type compensation device
Equipped with hydraulic oil, passive type compensation device is equipped with for perceiving the first pressure sensor of extraneous lateral pressure, for perceiving liquid
Press the second pressure sensor of system oil return lateral pressure, and first pressure sensor and second pressure sensor with active benefit
Device is repaid to be connected, when the pressure of extraneous side and hydraulic system oil return side is not equal, active compensation device carry out pressure compensation and
Oil mass supplement.
In hydraulic compensating device under using a kind of Combined water provided by the present invention, hydraulic system dredge oil amount compared with
In the case where small, the main leakage compensation that hydraulic system is carried out by passive type compensation device, and it has been responsible for the most of the time
Pressure compensation work, makes the pressure of system oil return side and external environment balance each other adaptation.
And in the biggish situation of the dredge oil amount of hydraulic system, hydraulic system is mainly carried out by active compensation device
Leakage compensation.Active compensation device is placed in pressure vessel, has carried out second protection, can avoid active compensation device because
It intakes and causes to damage, and hydraulic oil is housed inside pressure vessel, hydraulic oil environmental benefits are dissipated in active compensation device
Heat improves the service life of active compensation device.
Two pressure sensors of active compensation device be respectively arranged at the extraneous side of passive type compensation device with it is hydraulic
System oil return side, when sensor, which perceives extraneous lateral pressure and hydraulic system pressure, not to be waited, active compensation device can be actively
Pressure and oil mass compensation are carried out, the pressure of system oil return side and external environment is finally made to balance each other adaptation.
In conclusion under a kind of Combined water provided by the invention hydraulic compensating device combine active compensation device and
The advantages of passive type compensation device, can solve the disadvantage that passive type compensation device can not carry out big flow adjusting, and it is fast to remain it
The advantages of speed response carries out pressure compensation.Meanwhile the pressure vessel of passive type compensation device and active compensation device can design
Must be relatively small, cost of manufacture can be reduced and save space, making for active compensation device also can be improved in the use of pressure vessel
Use the service life.And when hydraulic system leakage amount is larger, active compensation device will do it Active Compensation pressure and supplement oil mass.Cause
This, hydraulic compensating device can solve problems of the prior art under Combined water provided by the invention, and relatively reliable.
Moreover, the pressure compensation effect of the hydraulic system including said combination formula underwater hydraulic compensation device also can be more preferable.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structural representation of hydraulic compensating device specific embodiment one under a kind of Combined water provided by the present invention
Figure.
Wherein, 1 it is pressure vessel, 2 be proportional pressure control valve, 3 be check valve, 4 be hydraulic motor, 5 be motor, 6 is passive
Formula compensation device, 7 be second pressure sensor, 8 be first pressure sensor.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Core of the invention is to provide hydraulic compensating device under a kind of Combined water, and pressure compensation is relatively reliable.This hair
Bright another core is to provide a kind of hydraulic system including said combination formula underwater hydraulic compensation device, pressure compensation effect
More preferably.
Referring to FIG. 1, Fig. 1 is hydraulic compensating device specific embodiment one under a kind of Combined water provided by the present invention
Structural schematic diagram.
Hydraulic compensating device under a kind of Combined water provided by the invention, including passive type compensation device 6 and active benefit
Device is repaid, it further includes pressure vessel 1, active benefit that passive type compensation device 6, which is equipped with the opening for sensing external environment pressure,
It repays device to be placed in pressure vessel 1, passive type compensation device 6 is set to outside pressure vessel 1, the output of active compensation device
It holds, the output end of passive type compensation device 6 is connected with the oil return line of hydraulic system, pressure vessel 1 and passive type compensation device 6
Oil pocket inside be respectively arranged with hydraulic oil, passive type compensation device 6 is equipped with the first pressure for perceiving extraneous lateral pressure and senses
Device 8, the second pressure sensor 7 for perceiving hydraulic system oil return lateral pressure, and first pressure sensor 8 and second pressure pass
Sensor 7 is connected with active compensation device, when the pressure of extraneous side and hydraulic system oil return side does not wait, active compensation dress
It sets and carries out pressure compensation and oil mass supplement.
It should be noted that passive type compensation device 6 is equipped with the opening for sensing external environment pressure, the aperture position
Setting can be selected according to the actual situation, but opening needs the oil pocket position below positioned at passive type compensation device 6, because
Hydraulic oil is housed for oil pocket inside, it is identical as hydraulic system oil return lateral pressure.Wherein, it should be added that, this place
Stating external environment is underwater or slurry environment.
In addition, it is necessary to further illustrate, active compensation device is placed in pressure vessel 1, fills inside pressure vessel 1
There is hydraulic oil, is in order to carry out second protection to active compensation device by using pressure vessel 1, to avoid active benefit
Repaying device leads to damage parts because of water inlet, and hydraulic oil is housed inside pressure vessel 1, and the hydraulic oil environmental benefits are in active
The service life of active compensation device finally can be improved in the heat dissipation of compensation device.
In addition, the output end of the output end of active compensation device, passive type compensation device 6 with the oil return of hydraulic system
The advantages of road is connected, and is to combine active compensation device and passive type compensation device 6, keep hydraulic system larger in dredge oil amount
Or pressure compensation and oil mass supplement can be carried out in lesser situation.
Specifically, it in the lesser situation of the dredge oil amount of hydraulic system, is mainly carried out by passive type compensation device 6 hydraulic
The leakage compensation of system, and it has been responsible for the pressure compensation work of most of the time, make the pressure of system oil return side and external environment
Balance each other adaptation；And in the biggish situation of the dredge oil amount of hydraulic system, hydraulic pressure system is mainly carried out by active compensation device
The leakage compensation of system.
It should be added that the output end of active compensation device described herein, passive type compensation device 6 is defeated
Outlet is connected with the oil return line of hydraulic system, refers to one kind as a result, rather than means；Namely no matter which kind of particular technique hand used
Section, the output end of active compensation device, the output end of passive type compensation device 6 are connected with the oil return line of hydraulic system.
It should be further noted that passive type compensation device 6 is equipped with the first pressure for perceiving extraneous lateral pressure
Sensor 8, the second pressure sensor 7 for perceiving hydraulic system oil return lateral pressure, and first pressure sensor 8 and the second pressure
Force snesor 7 is connected with active compensation device, when the pressure of extraneous side and hydraulic system oil return side is not equal, active benefit
It repays device and carries out pressure compensation and oil mass supplement.This is because active compensation device mainly passes through pressure sensor senses pressure
After power variation, the pressure compensation and oil mass supplement of active are carried out.It is logical when the pressure of extraneous side and hydraulic system oil return side does not wait
Often referring to the case where ambient pressure is greater than oil return lateral pressure, active compensation device carries out pressure compensation and oil mass supplement, when
So can also have the case where ambient pressure is less than oil return lateral pressure, carry out pressure compensation that active compensation device can also adapt to and
Oil mass supplement.
And under a kind of Combined water provided by the present invention in hydraulic compensating device active compensation device pressure sensing
Device be arranged in passive type compensation device 6, be in order to make up passive type compensation device 6 be not suitable for big flow variation and be difficult to mend
The problems such as repaying the oil liquid leakage of hydraulic system, so active compensation device can substitute passively when big flow oil liquid leakage occurs
Formula compensation device 6 actively carries out the leakage compensation of hydraulic system, and pressure charge compensation work, makes system oil return side and the external world
The pressure of environment balances each other adaptation,
It should be added that first pressure sensor 8 described herein and second pressure sensor 7 with it is active
Compensation device is connected, and refers to one kind as a result, rather than means；Namely which kind of particular technique means no matter is used, first pressure sensing
Device 8 is connected with active compensation device with second pressure sensor 7.In addition, first pressure sensor 8 and second pressure sense
The setting of 7 specific location of device can be selected in the case where meeting perception corresponding pressure further according to actual conditions.
Under one of the first above-mentioned specific embodiment Combined water on the basis of hydraulic compensating device, specifically
Ground, active compensation device include control system, proportional pressure control valve 2, hydraulic motor 4 and motor 5.
Wherein, control system is used to receive the pressure sensor signal and can be actively to hydraulic motor 4 and proportional overflow
Valve 2 is controlled to adjust, and proportional pressure control valve 2, hydraulic motor 4 are used to adjust pressure and oil mass compensates, and proportional pressure control valve 2,
Hydraulic motor 4 is all connected to the control system, and motor 5 is used to provide power support for hydraulic motor 4, meanwhile, motor 5 with it is hydraulic
Motor 4 is connected.
It should be noted that in the biggish situation of dredge oil amount of hydraulic system, mainly by active compensation device into
The leakage compensation of row hydraulic system.Active compensation device is placed in pressure vessel 1, has been carried out second protection, has mainly been
It avoids 4 inner inlet of hydraulic motor motor is caused to damage, and fills hydraulic oil inside pressure vessel 1, hydraulic oil environment has
Conducive to the heat dissipation of hydraulic motor 4, motor life is improved.
Two pressure sensors of active compensation device be respectively arranged at the extraneous side of passive type compensation device 6 with it is hydraulic
System oil return side, when sensor, which perceives extraneous lateral pressure and hydraulic system pressure, not to be waited, control system can adjust ratio and overflow
It flows valve 2 and hydraulic motor 4 carries out pressure and oil mass compensates.
It specifically, is when running well, if system pressure declines suddenly, to control under certain preset pressure when hydraulic system
System will start hydraulic motor 4 and actively carry out pressure compensation and oil mass supplement, and motor 5 then can provide power branch for hydraulic motor 4
It holds, when pressure compensation is more than or is still below original preset pressure value, control system can be carried out by adjusting proportional pressure control valve 2 again
The accurate adjusting of pressure, until reaching original preset pressure value.Finally make the pressure of system oil return side and external environment
Power balances each other adaptation.
Under one of above-mentioned second of specific embodiment Combined water on the basis of hydraulic compensating device, specifically
Ground, be provided between proportional pressure control valve 2 and hydraulic motor 4 oil liquid when for preventing hydraulic motor 4 out of service flow backwards it is unidirectional
Valve 3.
It should be noted that hydraulic motor 4 can stop working after completion pressure quickly compensates and oil mass is quickly supplemented, and
The accurate adjusting of proportional pressure control valve 2 meeting further progress pressure and oil mass.So hydraulic motor 4 can be considered intermittent operation, when
It is easy that oil liquid refluence occurs because of pressure difference when hydraulic motor 4 is out of service, at this time between proportional pressure control valve 2 and hydraulic motor 4
It is provided with check valve 3, the oil liquid that can avoid occurring when hydraulic motor 4 is out of service flows backwards phenomenon, to protect hydraulic motor 4 just
Often operation is not damaged.
Under one of the first above-mentioned specific embodiment Combined water on the basis of hydraulic compensating device, specifically
Ground, passive type compensation device 6 include shell, the diaphragm that elastic element in the housing is arranged and is arranged on elastic element,
The outer rim of diaphragm is connect with the shell of passive type compensation device 6, and shell is divided into and is used for the oil pocket of oil storage and is used to be arranged
The external cavity of elastic element.
It should be noted that in the lesser situation of dredge oil amount of hydraulic system, mainly by passive type compensation device 6 into
The leakage compensation of row hydraulic system.Specifically, passive type compensation device 6 include shell, setting elastic element in the housing with
And the diaphragm on elastic element is set, the outer rim of diaphragm is connect with the shell of passive type compensation device 6, and shell is divided into
External cavity for the oil pocket of oil storage and for elastic element to be arranged.Therefore, liquid is full of inside the oil pocket of passive type compensation device 6
Pressure oil, external cavity can be full of water or mud.
6 cavity bottom of passive type compensation device is equipped with the opening for sensing external environment pressure, and only the opening can
Water inlet or mud, diaphragm top is hydraulic oil, and by the pressure of hydraulic system oil return side, and diaphragm lower part is water or mud, by
To the pressure of external environment, when the pressure of system oil return side and external environment is not equal, diaphragm can drive because of force unbalance
Elastic element moves up and down, namely by the deformation of elastic element can quick compensation system pressure, and be responsible for major part
The pressure compensation of time works, and the pressure of system oil return side and external environment is made to balance each other adaptation.
Under one of above-mentioned 4th kind of specific embodiment Combined water on the basis of hydraulic compensating device, specifically
Ground, a top shell is provided on elastic element, and top shell has the pushing part for contacting and pushing diaphragm, pushing part and passive type
The inner wall of compensation device 6 has gap.
It should be noted that being provided with a top shell on elastic element, top shell has for contacting and pushing pushing away for diaphragm
The inner wall of dynamic portion, pushing part and passive type compensation device 6 has gap.Top shell is the contact in order to increase elastic element with diaphragm
Area, so being pressed when diaphragm perceives extraneous side and oil return lateral pressure and do not wait conducive to diaphragm fast speed belt dynamic elasticity element
Force compensating.
The pushing part that top shell is surrounded is mainly used for the variation of sensing external environment pressure, specifically, works as external environment
When pressure becomes larger, pushing part can upward diaphragm, cause the hydraulic oil of passive type compensation device 6 partially to be squeezed out, oil pocket is empty
Between become smaller, and elastic element uphill process can stretch generation elastic deformation, then be applied to one downward elastic force of diaphragm, make
Diaphragm is moved down with elastic element, so that the water of pushing part or mud be made partially to be squeezed out.Meanwhile passive type compensation device 6
Oil pocket space can become larger and cover hydraulic oil again so that the pressure of oil return side and extraneous side reaches balance again, reality
The purpose of existing pressure compensation and oil mass supplement.
Under one of the first above-mentioned specific embodiment Combined water on the basis of hydraulic compensating device, specifically
Hydraulic oil is filled inside the oil pocket of ground, pressure vessel 1 and passive type compensation device 6.
It should be noted that it is certain in order to make to maintain inside pressure vessel 1 for filling hydraulic oil inside pressure vessel 1
Under pressure, and hydraulic oil is housed inside pressure vessel 1, the hydraulic oil environmental benefits are in the heat dissipation of active compensation device, most
The service life of active compensation device can be improved eventually.And filled inside the oil pocket of passive type compensation device 6 hydraulic oil be in order to
Make to maintain under a certain pressure inside oil pocket, and perceive hydraulic system oil return lateral pressure, thus when oil return side and extraneous lateral pressure
Whens not equal, passive type compensation device 6 quickly can carry out pressure compensation to hydraulic system and oil mass is supplemented.
Under one of the first above-mentioned specific embodiment Combined water on the basis of hydraulic compensating device, specifically
Ground, the position that first pressure sensor 8 is set in passive type compensation device 6, is in communication with the outside, second pressure sensor 7 are set
It is placed on the oil pocket position of passive type compensation device 6.
It should be noted that first pressure sensor 8 is mainly used for perceiving extraneous lateral pressure, and second pressure sensor 7
It is mainly used for perceiving hydraulic system oil return lateral pressure.Wherein, the pressure for the position that passive type compensation device 6 is in communication with the outside and outer
Boundary's lateral pressure is identical, and pressure is identical as hydraulic system oil return lateral pressure at the oil pocket of passive type compensation device 6, therefore, by first
The position that pressure sensor 8 is set in passive type compensation device 6, is in communication with the outside, second pressure sensor 7 are set to passively
On the oil pocket position of formula compensation device 6.
Under one of the first above-mentioned specific embodiment Combined water on the basis of hydraulic compensating device, specifically
Ground, the components of passive type compensation device 6 are waterproof case.
It should be noted that passive type compensation device 6 is equipped with the opening for sensing external environment pressure, and institute of the present invention
Hydraulic compensating device needs are placed on underwater or slurry environment under a kind of Combined water provided, therefore water flow or mud can lead to
It crosses and is entered in passive type compensation device 6 for the opening of sensing external environment pressure, in order to protect passive type compensation device 6 not
It gets rusty or is damaged because being soaked in water, therefore.The components of passive type compensation device 6 need to be made becomes waterproof case, from
And improve the service life of passive type compensation device 6.
It include that any of the above-described is implemented the present invention also provides one kind in addition to hydraulic compensating device under a kind of above-mentioned Combined water
The hydraulic system of hydraulic compensating device under Combined water disclosed in example, the structure of other each sections of the hydraulic system please refer to existing
There is technology, repeats no more herein.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.All realities provided by the present invention
Any combination mode of example is applied in the protection scope of the invention, this will not be repeated here.
Hydraulic compensating device under a kind of Combined water provided by the present invention is described in detail above.It answers herein
With a specific example illustrates the principle and implementation of the invention, the explanation of above example is only intended to help to manage
Solve method and its core concept of the invention.It should be pointed out that for those skilled in the art, not departing from
, can be with several improvements and modifications are made to the present invention under the premise of the principle of the invention, these improvement and modification also fall into this hair
In bright scope of protection of the claims.
Claims (9)
1. hydraulic compensating device under a kind of Combined water, including passive type compensation device (6) and active compensation device, the quilt
Dynamic formula compensation device (6) is equipped with the opening for sensing external environment pressure, which is characterized in that further includes pressure vessel (1), institute
It states active compensation device to be placed in the pressure vessel (1), the passive type compensation device (6) is set to the pressure vessel
(1) outside, the output end of the active compensation device, the passive type compensation device (6) output end with hydraulic system
Oil return line is connected, and is respectively arranged with hydraulic oil inside the oil pocket of the pressure vessel (1) and the passive type compensation device (6), described
Passive type compensation device (6) is equipped with for perceiving the first pressure sensor (8) of extraneous lateral pressure, for perceiving hydraulic system
The second pressure sensor (7) of oil return lateral pressure, and the first pressure sensor (8) and the second pressure sensor (7)
It is connected with the active compensation device, it is described when the pressure of the extraneous side and hydraulic system oil return side does not wait
Active compensation device carries out pressure compensation and oil mass supplement.
2. hydraulic compensating device under Combined water according to claim 1, which is characterized in that the active compensation device
Including for receive the first pressure sensor (8), second pressure sensor (7) signal and can active to hydraulic motor (4)
The control system controlled to adjust with proportional pressure control valve (2) is used to adjust the proportional overflow of pressure and oil mass compensation
Valve (2), the hydraulic motor (4) are connected with the control system respectively, for providing power branch for the hydraulic motor (4)
The motor (5) held is connected with the hydraulic motor (4).
3. hydraulic compensating device under Combined water according to claim 2, which is characterized in that the proportional pressure control valve (2)
The check valve that oil liquid is flow backwards when for preventing the hydraulic motor (4) out of service is provided between the hydraulic motor (4)
(3)。
4. hydraulic compensating device under Combined water according to claim 1, which is characterized in that the passive type compensation device
It (6) include shell, elastic element disposed in the housing and the diaphragm being arranged on the elastic element, the diaphragm
Outer rim connect with the shell of the passive type compensation device (6), and the shell is divided into and is used for described in oil storage
Oil pocket and external cavity for elastic element to be arranged.
5. hydraulic compensating device under Combined water according to claim 4, which is characterized in that be arranged on the elastic element
There is a top shell, the top shell has the pushing part for contacting and pushing the diaphragm, the pushing part and the passive type
The inner wall of compensation device (6) has gap.
6. hydraulic compensating device under Combined water according to claim 1, which is characterized in that the pressure vessel (1) with
Hydraulic oil is filled inside the oil pocket of the passive type compensation device (6).
7. hydraulic compensating device under Combined water according to any one of claims 1 to 6, which is characterized in that described first
The position that pressure sensor (8) is set on the passive type compensation device (6), is in communication with the outside, the second pressure sensing
Device (7) is set on the oil pocket position of the passive type compensation device (6).
8. hydraulic compensating device under Combined water according to any one of claims 1 to 6, which is characterized in that described passive
The components of formula compensation device (6) are waterproof case.
9. a kind of hydraulic system, including hydraulic compensating device, which is characterized in that the hydraulic compensating device is claim 1 to 8
Hydraulic compensating device under described in any item Combined waters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910871236.5A CN110469563A (en) | 2019-09-16 | 2019-09-16 | Hydraulic compensating device and hydraulic system under a kind of Combined water |
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| CN201910871236.5A CN110469563A (en) | 2019-09-16 | 2019-09-16 | Hydraulic compensating device and hydraulic system under a kind of Combined water |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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