CN109707677A - Hydraulic oil container - Google Patents
Hydraulic oil container Download PDFInfo
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- CN109707677A CN109707677A CN201910167843.3A CN201910167843A CN109707677A CN 109707677 A CN109707677 A CN 109707677A CN 201910167843 A CN201910167843 A CN 201910167843A CN 109707677 A CN109707677 A CN 109707677A
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- oil
- filter core
- back chamber
- oil return
- hydraulic
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Abstract
The present invention relates to hydraulic oil containers, and hydraulic oil is always mixed with a large amount of bubbles when to solve the problems, such as hydraulic oil container oil return；A kind of hydraulic oil container is provided, including cabinet, oil suction filter core, oil return filter core, oil sucting cavity and oil back chamber are separated into cabinet, oil return filter core is mounted on oil back chamber, and oil suction filter core is mounted on oil sucting cavity, the oil return opening being connected to oil back chamber is provided on cabinet, the oil outlet of oil return filter core is connected to oil sucting cavity, inlet port connection on the oil outlet and cabinet of oil suction filter core, mounting bracket is equipped in oil back chamber, multiple ultrasonic transducers are equipped in mounting bracket.When hydraulic system works, the work of ultrasonic transducer energization high-frequency vibration motivates the vibration of entire oil back chamber inner fluid, accelerates the precipitation for being dissolved in gas in oil liquid, and accelerate blending in oil liquid bubble parameters, floating process.
Description
Technical field
The present invention relates to a kind of hydraulic oil container, more specifically to using hydraulic oil container in a kind of engineering machinery.
Background technique
Hydraulic technique has many advantages, such as high-efficient, flexible arrangement, is widely used in engineering machinery, is the pass of engineering machinery
One of key technology decides the performance of engineering machinery.With the progress of modern science and technology, hydraulic technique towards it is small in size, at
The directions such as this low, the service life is long, high degree of automation, high reliability, high-precision are developed, and a kind of inevitable trend is had become.
Hydraulic system generally comprises pump, control valve, executive component and hydraulic oil container.Hydraulic oil is by pump by from hydraulic oil container
It is sucked out, then by control valve, reaches the function action that executive component realizes machine, finally flow back to hydraulic oil container.Due to hydraulic pressure system
The variation of pressure, flow velocity occurs for circulation loop of uniting each local moment, causes hydraulic system due to being mixed into a large amount of bubbles, especially
Oil return has a large amount of visible bubble in bubble, and the rapid disperse of bubble is in entire hydraulic oil container.The bubble being relatively large in diameter can rapidly on
It floats and escapes liquid level；And the lesser bubble of most diameter has not enough time to evolution of floating, and is inhaled into pump with flowing oil
It is interior, reenter entire hydraulic system.This frequently shakes, for the engineering machinery of high-frequency vibration complete machine, is particularly acute.
For system work quality and economy, the bubble in oil liquid is very huge to the harm of entire hydraulic system
Big: 1, system work is bad, and oil liquid is mixed with bubble, and the compression ratio of oil liquid increases, cause to automatically control error become larger or failure,
Equipment intermittent movement.2, oil temperature increases, and due to the oil liquid pressure height constantly circulation of hydraulic system, bubble is by compression temperature
It steeply rises, on the other hand, the thermal conductivity for being mixed with the oil liquid of a large amount of bubbles substantially reduces, and seriously affects cooling effect.Oil temperature liter
High bring adverse effect: aging, the increasing that the greasy property of the oxidation deterioration, oil liquid that accelerate oil liquid reduces, accelerates sealing element
The generation of cavitation erosion.3, inefficiency is also easy to produce vibration and noise.
Current conventional reply means: bubble, such as horizontal cross-section are removed using fuel tank indispensable in hydraulic system
Product be greater than the depth of oil liquid, arrange one or more partition extend residence time of the oil liquid in fuel tank, oil inlet and outlet away from
From as far as possible to be arranged to remoter and fuel tank volume big etc. as far as possible.But bubble removal effect is still very poor.
It is exactly the method leaned on the buoyancy of bubble itself and voluntarily dissolve in atmosphere floating to pasta using fuel tank natural removal method.Gas
The diameter of bubble is generally 0.25~0.5mm, if the oil liquid of bubble interface does not move upwards, to lean on itself floating completely
Power overcomes the frictional resistance of oil liquid and moves upwards.According to Stokes rule it is found that the ascent rate of bubble and bubble it is big
Small and oil viscosity is related, that is to say, that ascent rate is directly proportional to Air Bubble Size, is inversely proportional with oil viscosity.As diameter is
The bubble of 0.3mm per minute floating 30mm in the oil liquid that viscosity is 100 × 10-6m2/s.It is micro- due to the stirring action of pump
Bubble after refinement becomes emulsification liquid bubble through valve port high speed ejection again and leans on even if being detained for quite a long time in fuel tank
It is also extremely difficult for voluntarily floating upper.It can be seen that only making a return journey bubble removing by fuel tank, effect is mutually on duty.
Fuel tank natural removal method requires hydraulic device structure to increase.For fuel tank in addition to oil storage, refrigerating function, volume is big
A basic reason just allow for the removal of bubble, the volume of China's fuel tank is generally 3~5 times of pump discharge, U.S.'s row
Industry provides that the volume of fuel tank cannot be less than 3 times of pump discharge.Due to using large volume fuel tank, often become device overall structure
Greatly, and it is uneconomical.And for the excavator of the king of referred to as engineering machinery, the flow ratio of hydraulic oil container and pump also only has 0.55
Left and right, generally can not be properly arrived at the effect of defoaming.
Summary of the invention
The technical problem to be solved by the present invention is to the problems lower for existing hydraulic oil container defoaming effectiveness, and provide one kind
The good hydraulic oil container of defoaming effect.
The present invention is to realize that the technical solution of its purpose is such that provide a kind of hydraulic oil container, including cabinet, oil suction filter
Core, oil return filter core, it is characterised in that oil sucting cavity and oil back chamber are separated into the cabinet, the oil return filter core is mounted on oil return
Chamber, the oil suction filter core are mounted on oil sucting cavity, and the oil return opening being connected to oil back chamber, the oil return filter core are provided on the cabinet
Oil outlet be connected to the oil sucting cavity, inlet port on the oil outlet and cabinet of oil suction filter core connection, in oil back chamber
Mounting bracket is installed, multiple ultrasonic transducers are installed in the mounting bracket.
Further, in above-mentioned hydraulic oil container, the mounting bracket is in caged, and the oil return filter core is located at caged bracket
It is interior.
Further, in above-mentioned hydraulic oil container, the ultrasonic transducer is in upper and lower wall on cage-like bracket
Shape arrangement, every layer of ultrasonic transducer are axially uniformly distributed around the oil return filter core.
Further, in above-mentioned hydraulic oil container, the oil back chamber only passes through the oil outlet of the oil return filter core and the suction
Oil pocket connection, the oil sucting cavity and the oil back chamber respirator that at least one is communicated with the atmosphere in respective top layout respectively.
Further, in above-mentioned hydraulic oil container, the respirator pressure setting at the top of the oil back chamber is more described than being located at
The pressure set points of respirator at the top of oil sucting cavity are big.
Further, in above-mentioned hydraulic oil container, the installation site of the oil return direction of the oil return opening and the oil return filter core
Spatially mutually stagger.
Further, in above-mentioned hydraulic oil container, oil return impact gear is provided between the oil return opening and the oil return filter core
Plate.
Compared with prior art, the present invention in the present invention, when hydraulic system works, oil liquid passes through the oil return of oil return flange
Mouth flows back to oil back chamber, usually has a large amount of visible bubble in bubble, and for the rapid disperse of bubble in entire oil back chamber, ultrasonic transducer is logical
Electric high-frequency vibration work, motivates the vibration of entire oil back chamber inner fluid, accelerates the precipitation for being dissolved in gas in oil liquid, and accelerate
Blend in oil liquid bubble parameters, floating process.Being eliminated the oil liquid of most bubbles, to pass through oil return filter core again further
By filtering bubble, oil sucting cavity is finally entered, is pumped by oil suction filter core into the next working cycles of entrance.Oil sucting cavity and oil return
Chamber keeps tank pressure balance by respective respirator.
Detailed description of the invention
Fig. 1 is hydraulic oil container cross-sectional view one of the present invention.
Fig. 2 is hydraulic oil container cross-sectional view two of the present invention.
Fig. 3 is the partial view in Fig. 2 at A.
Fig. 4 is the structural schematic diagram of mounting bracket.
Fig. 5 is the partial schematic diagram that B goes out in Fig. 4.
Parts title and serial number in figure:
Cabinet 100, oil sucting cavity 110, oil sucting cavity gland 1101, oil sucting cavity respirator 1102, mandril 1103, oil suction filter core
1104, oil sucting cavity liquid level face 1105, oil back chamber 120, oil back chamber gland 1201, oil return respirator 1202, spring bearer plate 1203, return
Oily filter core 1204, oil return flange 1205, oil return opening 1206, oil return filter core holddown spring 1207, holddown spring 1208, mounting bracket
1209, spring fastening 12091, column 12092, coaming plate 12093, limiting plate 12094, ultrasonic transducer 1210, oil back chamber
Liquid level face 1211, oil back chamber bottom plate 1212, outlet oilhole 1213, positioning step 1, positioning step 2 1215.
Specific embodiment
Illustrate specific embodiment with reference to the accompanying drawing.
As shown in Figure 1 to Figure 3, the hydraulic oil container in the present embodiment includes cabinet 10, and partition is provided in cabinet, by case
Intracoelomic cavity is separated into two cavitys, is oil sucting cavity 110 and oil back chamber 120 respectively.Oil suction filter core is provided in oil sucting cavity 110
1104, oil suction filter core 1104 is fixedly mounted on the bottom plate of cabinet 100 by mandril 1103.It is installed at the top of oil sucting cavity 110
There is oil sucting cavity gland 1101, oil sucting cavity respirator 1102 is installed on oil sucting cavity gland 1101.
Oil return filter core 1204 is installed in oil back chamber, the outlet oilhole 1213 of oil return filter core 1204 is located at oil back chamber bottom plate
On 1212.Positioning step 1 is provided on oil back chamber bottom plate 1212, positioning step 1 extend into oil return filter core
In the inner hole of 1204 lower ends, radial positioning is carried out to oil return filter core 1204.The top of oil return filter core 1204 passes through spring bearer plate
1203 and oil return filter core holddown spring 1207 be fixed, so that installation be fixed to oil return filter core 1204.
Mounting bracket 1209 is also equipped in oil back chamber, mounting bracket 1209 is in vertically-mounted caged, oil return filter core
1204 are located in mounting bracket 1209.As shown in figure 4, mounting bracket 1209 includes the limit of the spring fastening 12091 at top, bottom
Position pedestal 12094 and three coaming plates 12093 between spring fastening 12091 and limiting plate 12094, three coaming plates are in
Upper and lower arranged for interval, coaming plate is annular in shape, and limiting plate 12094, spring fastening 12091 and three coaming plates pass through four columns
12092 are fixedly connected and form caged.
Positioning step 2 1215 is provided on oil back chamber bottom plate 1212, positioning step 2 1215 is extend under mounting bracket
In 12094 inner hole of limiting plate at end, radial positioning, the spring fastening of 1209 upper end of mounting bracket are carried out to mounting bracket 1209
12091 carry out axially position by holddown spring 1208 and spring bearer plate 1203, to mounting bracket, to play to mounting bracket
The effect of fixed installation.
As shown in Fig. 4 Fig. 5, it is fitted with four ultrasonic transducers 1210 on every layer of coaming plate 12093, is enclosed positioned at same
Four ultrasonic transducers 1210 on plate are circumferentially uniformly distributed, and the ultrasonic transducer 1210 on three coaming plates constitutes three layers
Ultrasonic transducer.
As shown in Fig. 1 Fig. 2, the side of oil back chamber 120 is provided with oil return flange 1205, oil return opening 1206 is located at oil return method
On orchid 1205, oil return direction and the oil return filter core 1204 of oil return opening 1206 are spatially mutually staggered, namely are entered from oil return opening
Hydraulic oil to oil back chamber will not be directly impinging on oil return filter core.
Oil back chamber gland 1201 is installed at the top of oil back chamber, oil return respirator is installed on oil back chamber gland 1201
1202.As shown in Fig. 2, the setting pressure ratio of the oil return respirator at the top of oil back chamber is located at the oil suction respirator at the top of oil sucting cavity
Pressure set points are big.When hydraulic system works, oil liquid flows back to oil back chamber by the oil return opening of oil return flange, usually with a large amount of
Visible bubble in bubble, for the rapid disperse of bubble in entire oil back chamber, the work of ultrasonic transducer energization high-frequency vibration motivates entire oil return
The vibration of intracavitary oil liquid accelerates to be dissolved in the precipitation of gas in oil liquid, and accelerate blending in oil liquid bubble parameters, float
Process.The oil liquid for being eliminated most bubbles passes through oil return filter core further by filtering bubble again, finally enters oil sucting cavity, leads to
Oil suction filter core is crossed to be pumped into the next working cycles of entrance.Oil sucting cavity and oil back chamber pass through respective respirator holding fuel tank internal pressure
Dynamic balance, in use, oil back chamber liquid level face 1211 in oil back chamber is hydraulic to be higher than oil sucting cavity liquid level face to hydraulic oil container
1105。
Claims (7)
1. a kind of hydraulic oil container, including cabinet, oil suction filter core, oil return filter core, it is characterised in that be separated into oil suction in the cabinet
Chamber and oil back chamber, the oil return filter core are mounted on oil back chamber, and the oil suction filter core is mounted on oil sucting cavity, is provided on the cabinet
The oil outlet of the oil return opening being connected to oil back chamber, the oil return filter core is connected to the oil sucting cavity, the oil suction filter core it is fuel-displaced
Mouth is connect with the inlet port on cabinet, and mounting bracket is equipped in oil back chamber, multiple ultrasounds are equipped in the mounting bracket
Wave transducer.
2. hydraulic oil container according to claim 1, it is characterised in that the mounting bracket is in caged, oil return filter core position
In in caged bracket.
3. hydraulic oil container according to claim 2, it is characterised in that the ultrasonic transducer is on cage-like bracket
It arranges in upper and lower wall shape, every layer of ultrasonic transducer is axially uniformly distributed around the oil return filter core.
4. hydraulic oil container according to any one of claims 1 to 3, it is characterised in that the oil back chamber only passes through the oil return
The oil outlet of filter core is connected to the oil sucting cavity, the oil sucting cavity and oil back chamber respectively respective top layout at least one with it is big
The respirator of gas connection.
5. hydraulic oil container according to claim 4, it is characterised in that the respirator pressure at the top of the oil back chamber is set
The fixed pressure set points than being located at the respirator at the top of the oil sucting cavity are big.
6. hydraulic oil container according to claim 1, it is characterised in that the oil return direction of the oil return opening and the oil return are filtered
The installation site of core spatially mutually staggers.
7. hydraulic oil container according to claim 1, it is characterised in that be arranged between the oil return opening and the oil return filter core
There is oil return impact baffle plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910167843.3A CN109707677B (en) | 2019-03-06 | 2019-03-06 | Hydraulic oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910167843.3A CN109707677B (en) | 2019-03-06 | 2019-03-06 | Hydraulic oil tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109707677A true CN109707677A (en) | 2019-05-03 |
| CN109707677B CN109707677B (en) | 2021-04-02 |
Family
ID=66266387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910167843.3A Active CN109707677B (en) | 2019-03-06 | 2019-03-06 | Hydraulic oil tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109707677B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550940A (en) * | 2021-07-22 | 2021-10-26 | 江苏耀坤液压股份有限公司 | Hydraulic oil tank capable of defoaming rapidly in use |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865187A (en) * | 2010-05-18 | 2010-10-20 | 浙江大学 | Ultrasonic on-line air removing device for hydraulic system |
| CN103967851A (en) * | 2014-05-20 | 2014-08-06 | 苏州新协力特种工业模板有限公司 | Hydraulic oil tank for hydraulic system |
| CN205744641U (en) * | 2016-07-14 | 2016-11-30 | 雷沃重工股份有限公司 | A kind of hydraulic oil container |
| CN107263545A (en) * | 2017-08-07 | 2017-10-20 | 姜德晶 | A kind of engineering mechanical arm |
-
2019
- 2019-03-06 CN CN201910167843.3A patent/CN109707677B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865187A (en) * | 2010-05-18 | 2010-10-20 | 浙江大学 | Ultrasonic on-line air removing device for hydraulic system |
| CN103967851A (en) * | 2014-05-20 | 2014-08-06 | 苏州新协力特种工业模板有限公司 | Hydraulic oil tank for hydraulic system |
| CN205744641U (en) * | 2016-07-14 | 2016-11-30 | 雷沃重工股份有限公司 | A kind of hydraulic oil container |
| CN107263545A (en) * | 2017-08-07 | 2017-10-20 | 姜德晶 | A kind of engineering mechanical arm |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550940A (en) * | 2021-07-22 | 2021-10-26 | 江苏耀坤液压股份有限公司 | Hydraulic oil tank capable of defoaming rapidly in use |
| CN113550940B (en) * | 2021-07-22 | 2023-09-15 | 江苏耀坤液压股份有限公司 | Hydraulic oil tank capable of rapidly defoaming in use |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109707677B (en) | 2021-04-02 |
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