CN105422529B - A kind of hydraulic system for being provided with closed type hydraulic oil tank and open hydraulic fuel tank - Google Patents
A kind of hydraulic system for being provided with closed type hydraulic oil tank and open hydraulic fuel tank Download PDFInfo
- Publication number
- CN105422529B CN105422529B CN201510984884.3A CN201510984884A CN105422529B CN 105422529 B CN105422529 B CN 105422529B CN 201510984884 A CN201510984884 A CN 201510984884A CN 105422529 B CN105422529 B CN 105422529B
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- hydraulic
- difference
- volume
- fuel tank
- motor
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- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- 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
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
The present invention discloses a kind of hydraulic system for being provided with closed type hydraulic oil tank and open hydraulic fuel tank.The system includes the isometric(al) difference hydraulic pressure main system being made up of the master winch hydraulic motor of no difference in volume characteristic in the course of the work, secondary elevator hydraulic motor, rotary fluid motor, left hydraulic motor travel motor, right hydraulic motor travel motor hydraulic actuator, and the difference in volume hydraulic booster system by having the hydraulic jack hydraulic actuator of difference in volume characteristic to be formed in the course of the work, it is characterised in that：The isometric(al) difference hydraulic pressure main system is connected by connecting line with closed type hydraulic oil tank respectively into and out of oily interface, and the difference in volume hydraulic booster system is connected by connecting line with open hydraulic fuel tank respectively into and out of oily interface.The present invention is used in combination by isometric(al) difference hydraulic pressure main system and difference in volume hydraulic booster system, while not only lifting host hydraulic system reliability, and reduces complete machine maintenance, use cost.
Description
Technical field
Hydraulic track crane and hydraulic track dynamic compaction machinery are provided with enclosed liquid the present invention relates to a kind of
Press oil the hydraulic system of case and open hydraulic fuel tank.
Background technology
In the hydraulic track crane and hydraulic track dynamic compaction machinery of prior art, the He of isometric(al) difference hydraulic pressure main system 3
Difference in volume hydraulic booster system 2 shares open hydraulic fuel tank 1 conventional as shown in Figure 1；In difference in volume hydraulic booster system 2,
Because the rod chamber and rodless cavity of hydraulic jack 4 have difference in areas, when hydraulic jack does stretching motion, into hydraulic jack 4
The hydraulic oil volume of the hydraulic oil volume ratio rod chamber discharge of rodless cavity is more so that stored liquid in open hydraulic fuel tank 1
Press oil volume reduction, pasta declines（Low pasta D can be produced）, with the decline of pasta, the inside pasta of open hydraulic fuel tank 1 with
On gas storage space increase, the extraneous gas of open hydraulic fuel tank 1 under atmospheric pressure, by fixation be communicated in open hydraulic
Air cleaner 1-1 on fuel tank 1 enters the inside of open hydraulic fuel tank 1；When hydraulic jack 4 does retraction movement, into liquid
The hydraulic oil volume of the rod chamber of compressing cylinder 4 is less than the hydraulic oil volume of rodless cavity discharge so that the oil storage in open hydraulic fuel tank 1
Amount increase, pasta rise（High pasta G can be produced）, gas storage space more than the inside pasta of open hydraulic fuel tank 1 reduces, unnecessary
Gas open hydraulic fuel tank 1 is discharged by air cleaner 1-1 and enters air；Just because of difference in volume hydraulic booster system
Hydraulic jack 4 in 2 has the characteristic of this difference in volume at work so that ambient outside air constantly passes through air cleaner
1-1 disengaging open hydraulics fuel tank 1, wherein during the air inlet into open hydraulic fuel tank 1, although air cleaner 1-1 has
There are certain air filtering capabilities, but still can not avoid bringing the harmful substances such as the dust particle in air into open hydraulic fuel tank
Inside 1 and it is dissolved into hydraulic oil, hydraulic oil is gradually contaminated, so as to induces hydraulic system fault, influence the normal of main frame
Work uses, and by taking the main frame with oil mass 370kg as an example, thoroughly changes hydraulic oil every time, 7000 yuan or so of expense need to occur.
The content of the invention
The purpose of the present invention is exactly to provide a kind of fluid pressure type that is applied to for above-mentioned weak point of the prior art and carry out
The hydraulic system for being provided with closed type hydraulic oil tank and open hydraulic fuel tank with crane and hydraulic track dynamic compaction machinery.Pass through this
The application of invention, can be big using oil mass, use isometric(al) difference hydraulic pressure main system that closed type hydraulic oil tank is oil sources to reach
Reduce until preventing exchanging for hydraulic oil container internal gas and ambient outside air, so as to prevent the dust in environmental gas to have
Evil material enters hydraulic oil container, plays stable hydraulic luboil cleanness quality, extension main system hydraulic oil and hydraulic component and uses
The purpose in life-span；Simultaneously using hydraulic oil of the relatively small conventional open hydraulic fuel tank of volume as difference in volume hydraulic booster system
Source, not only meet the technology that during work of difference in volume executive component hydraulic oil container can be caused to need intake and exhaust to exchange with ambient atmosphere
Property requirements, even if while accessory system hydraulic oil be contaminated in use for some time and when need to change oil, corresponding generation
Maintenance cost it is also relatively fewer, still by taking existing main frame of the technology with oil mass 370kg noted earlier as an example, after the technology of the present invention
The regular maintenance amount of changing oil be about 110kg, corresponding 2080 yuan of expense；Therefore the application of the present invention, can not only lift main system
Reliability, fault rate is reduced, while the use and maintenance cost of complete machine can also be substantially reduced, had and be worth and pass through compared with high-tech application
Ji benefit.
The purpose of the present invention can be realized by following technique measures：
The be provided with closed type hydraulic oil tank and the hydraulic system of open hydraulic fuel tank of the present invention is included by the course of the work
There is no the master winch hydraulic motor of difference in volume characteristic, secondary elevator hydraulic motor, rotary fluid motor, left hydraulic motor travel motor, the right side
The isometric(al) difference hydraulic pressure main system that hydraulic motor travel motor hydraulic actuator is formed, and by having volume in the course of the work
The difference in volume hydraulic booster system that the hydraulic jack hydraulic actuator of poor characteristic is formed；The isometric(al) difference hydraulic pressure main system
Be connected respectively by connecting line with closed type hydraulic oil tank into and out of oily interface, the entering of the difference in volume hydraulic booster system,
Oil out port is connected by connecting line with open hydraulic fuel tank respectively.
Pre-compressed air cleaner is provided with heretofore described closed type hydraulic oil tank, is only risen in main frame normal work
Safeguard protection acts on, and the inside of closed type hydraulic oil tank is not produced gas exchanges with ambient atmosphere, extraneous big so as to avoid
Pollution of the dust pollution thing to closed type hydraulic oil tank internal hydraulic pressure oil in gas.
Air cleaner is provided with heretofore described open hydraulic fuel tank, plays fuel tank internal gas storage space and fuel tank
The effect of outside atmosphere space connection, gas storage space inside needs hydraulic oil containers during meeting the work of difference in volume hydraulic booster system
The technical characteristic demand of gas exchanges is carried out with ambient atmosphere.
The operation principle of the present invention is as follows：
In isometric(al) difference hydraulic pressure main system, because hydraulic motor does not have the characteristic of difference in volume, in the course of the work not
The height of the pasta in closed type hydraulic oil tank can be caused to change, therefore in theory need not be with the external world inside closed type hydraulic oil tank
Air produces gas exchanges, and the fixed pre-compressed air cleaner connected now only plays safeguard protection work on closed type hydraulic oil tank
With will not be entered under main frame normal operating service condition inside closed type hydraulic oil tank by pre-compressed air cleaner and ambient atmosphere
Row gas exchanges, the hydraulic oil for the isometric(al) difference hydraulic pressure main system for alloing to be carried inside closed type hydraulic oil tank are protected for a long time
Cleaning is held, can not only ensure the safe and reliable operation of hydraulic system, while decreases maintenance and changes oil the frequency, reduces use
Maintenance cost；In difference in volume hydraulic booster system, because hydraulic jack has the characteristic of difference in volume, it can lead in the course of the work
Cause the hydraulic oil pasta in fuel tank that height occurs to change, therefore using the relatively small open hydraulic fuel tank of volume as difference in volume
The hydraulic oil source of hydraulic booster system, hydraulic oil container can be caused to enter with ambient atmosphere when so not only meeting hydraulic jack work
The technical characteristic demand of row gas exchanges, even if while difference in volume hydraulic booster system hydraulic oil in use for some time by
Pollute and need to change oil, corresponding caused maintenance cost is also relatively fewer, so as to play the mesh for reducing main frame working service cost
's.
Beneficial effects of the present invention are as follows：
The present invention is used as hydraulic oil source by isometric(al) difference hydraulic pressure main system using the larger closed type hydraulic oil tank of volume, holds
Product moment hydraulic booster system uses split application measure of the relatively small open hydraulic fuel tank of volume as hydraulic oil source, rationally
Do not carry out the characteristic of gas exchanges with ambient atmosphere without difference in volume and sealed reservoir using hydraulic motor, maintain and use oil mass
Requirement of more hydraulic pressure main systems to cleanliness of hydraulic oil；There is the hydraulic booster system of difference in volume characteristic for hydraulic jack class
Using the open hydraulic fuel tank of small volume as oil sources, when both having met hydraulic jack work hydraulic oil container can be caused big with the external world
Gas carry out gas exchanges technical characteristic demand, even if while difference in volume hydraulic booster system hydraulic oil using a period of time
It is contaminated and need to changes oil afterwards, corresponding caused maintenance cost is also relatively fewer, and main frame working service cost is reduced so as to play
Purpose；Therefore the present invention application, can while host hydraulic system reliability lift, reduce complete machine maintenance, using into
This.
Brief description of the drawings
Fig. 1 each hydraulic system and use configuration schematic diagram of the hydraulic oil container in main frame in the prior art.
Each hydraulic system and use configuration schematic diagram of the hydraulic oil container in main frame in Fig. 2 present invention.
Serial number in figure：1 open hydraulic fuel tank, 1-1 air cleaners, 2 difference in volume hydraulic booster systems, 3 isometric(al)s are poor
Hydraulic pressure main system, 3-1 master winch hydraulic motors, 3-2 pair elevator hydraulic motors, 3-3 rotary fluid motors, 3-4 left lateral walk hydraulic pressure
Motor, the right hydraulic motor travel motors of 3-5,4 hydraulic jacks, 5 closed type hydraulic oil tanks, 5-1 pre-compressed air cleaners, V1, rodless cavity
Volume, V2, rod chamber volume, V1max, rodless cavity maximum volume, V2max, rod chamber maximum volume, B, fixed high pasta, G, height
Pasta, D, low pasta.
Embodiment
The present invention is below with reference to embodiment（Accompanying drawing）It is further described：
As shown in Fig. 2 the hydraulic system for being provided with closed type hydraulic oil tank and open hydraulic fuel tank of the present invention include by
There is no the master winch hydraulic motor 3-1, secondary elevator hydraulic motor 3-2, rotary fluid motor 3- of difference in volume characteristic in the course of work
3rd, the isometric(al) difference hydraulic pressure main system 3 that left hydraulic motor travel motor 3-4, right hydraulic motor travel motor 3-5 hydraulic actuators are formed,
And the difference in volume hydraulic pressure by having the hydraulic actuator of hydraulic jack 4 of difference in volume characteristic to be formed in the course of the work aids in
System 2；The isometric(al) difference hydraulic pressure main system 3 is connected by connecting line with closed type hydraulic oil tank 5 respectively into and out of oily interface
Logical, the difference in volume hydraulic booster system 2 is connected by connecting line with open hydraulic fuel tank 1 respectively into and out of oily interface.
Pre-compressed air cleaner 5-1 is provided with heretofore described closed type hydraulic oil tank 5, in main frame normal work
Only play safeguard protection, and the inside of closed type hydraulic oil tank 5 is not produced gas exchanges with ambient atmosphere, it is outer so as to avoid
Pollution of the dust pollution thing to the internal hydraulic pressure of closed type hydraulic oil tank 5 oil in boundary's air.
Be provided with air cleaner 1-1 on heretofore described open hydraulic fuel tank 1, play fuel tank internal gas storage space with
The effect of fuel tank outside atmosphere space connection, stored up inside needs hydraulic oil containers during meeting that difference in volume hydraulic booster system 2 works
Headroom carries out the technical characteristic demand of gas exchanges with ambient atmosphere.
More specifically：In isometric(al) difference hydraulic pressure main system 3, become because each motor does not produce volume in the course of the work
Change, therefore with the 3 matching used internal hydraulic pressure pasta of closed type hydraulic oil tank 5 of isometric(al) difference hydraulic pressure main system in isometric(al) difference hydraulic pressure
Height will not be produced in the course of work of main system 3 to change（It is surely high pasta B）, the fixed connection on closed type hydraulic oil tank 5
Pre-compressed air cleaner 5-1 now only plays safeguard protection and the inside of closed type hydraulic oil tank 5 is not produced with ambient atmosphere
Raw gas exchanges, so as to avoid pollution of the dust pollution thing to the internal hydraulic pressure of closed type hydraulic oil tank 5 oil in ambient atmosphere, protecting
The more pollution degree of hydraulic oil of isometric(al) difference hydraulic pressure main system 3 of card oil mass meets main hydraulic system requirement, avoided frequently
Change oil while cause damage, reduce the main system failure brought due to hydraulic oil pollution and corresponding maintenance cost, improve
Whole aircraft reliability；In difference in volume hydraulic booster system 2, due to there is difference in volume characteristic for representative with hydraulic jack 4
Hydraulic actuator can produce volume change in the course of the work, thus with difference in volume hydraulic booster system 2 is matching used opens
The internal hydraulic pressure pasta of formula hydraulic oil container 1 can produce height in the course of work of difference in volume hydraulic booster system 2 to be changed（It can produce
High pasta G and low pasta D）, therefore supporting fixation has connected air cleaner 1-1 on open hydraulic fuel tank 1, works as hydraulic jack
4 when doing stretching motion, and the pasta in open hydraulic fuel tank 1 declines（Low pasta D can be produced）, atmosphere passes through air
Cleaner 1-1 enters in open hydraulic fuel tank 1；Conversely, when hydraulic jack 4 does retraction movement, the oil in open hydraulic fuel tank 1
Face rises（High pasta G can be produced）, fuel tank internal excessive gas is discharged in air by air cleaner 1-1, therefore, opened
Formula hydraulic oil container 1 supports the use with difference in volume hydraulic booster system 2, that is, can cause liquid when meeting difference in volume hydraulic work system
Press oil case need with ambient atmosphere carry out gas exchanges technical characteristic demand, even if while difference in volume hydraulic booster system liquid
Force feed is contaminated and need to changed oil in use for some time（The oil only changed in open hydraulic fuel tank 1, in closed type hydraulic oil tank 5
Oil is not required to change）, corresponding caused maintenance cost is also relatively fewer, so as to play the mesh for reducing main frame working service cost
's；Therefore the present invention application, can play lifting host hydraulic system reliability while, reduce complete machine safeguard, using into
This purpose.
Claims (1)
1. a kind of hydraulic system for being provided with closed type hydraulic oil tank and open hydraulic fuel tank, it is included by master winch hydraulic motor
（3-1）, secondary elevator hydraulic motor（3-2）, rotary fluid motor（3-3）, left hydraulic motor travel motor（3-4）, right lateral walk hydraulic pressure horse
Reach（3-5）Composition without difference in volume hydraulic pressure main system（3）；And by having the hydraulic jack of difference in volume characteristic in the course of the work
（4）The difference in volume hydraulic booster system of composition（2）；It is characterized in that：The no difference in volume hydraulic pressure main system（3）Into and out of oil
Interface passes through connecting line and closed type hydraulic oil tank respectively（5）It is connected, the difference in volume hydraulic booster system（2）Into and out of
Oily interface passes through connecting line and open hydraulic fuel tank respectively（1）It is connected；The closed type hydraulic oil tank（5）On be provided with precompressed
Formula air cleaner（5-1）；The open hydraulic fuel tank（1）On be provided with air cleaner（1-1）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510984884.3A CN105422529B (en) | 2015-12-25 | 2015-12-25 | A kind of hydraulic system for being provided with closed type hydraulic oil tank and open hydraulic fuel tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510984884.3A CN105422529B (en) | 2015-12-25 | 2015-12-25 | A kind of hydraulic system for being provided with closed type hydraulic oil tank and open hydraulic fuel tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105422529A CN105422529A (en) | 2016-03-23 |
| CN105422529B true CN105422529B (en) | 2018-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510984884.3A Active CN105422529B (en) | 2015-12-25 | 2015-12-25 | A kind of hydraulic system for being provided with closed type hydraulic oil tank and open hydraulic fuel tank |
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| Country | Link |
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| CN (1) | CN105422529B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202073872U (en) * | 2011-04-12 | 2011-12-14 | 新乡平原航空技术工程有限公司 | Driving experiment device of hydraulic motor for airplane generator |
| CN202185344U (en) * | 2011-03-03 | 2012-04-11 | 安徽惊天液压智控股份有限公司 | Hydraulic drive system of fixed crusher |
| CN203194163U (en) * | 2013-04-28 | 2013-09-18 | 河北中农博远农业装备有限公司 | Machine-body hydraulic driving system of combine harvester |
| CN103471829A (en) * | 2013-09-05 | 2013-12-25 | 南京工业大学 | Multi-way valve test bed of hydraulic excavator |
| CN205243990U (en) * | 2015-12-25 | 2016-05-18 | 郑州宇通重工有限公司 | Be provided with closed hydraulic tank and open hydraulic tank's hydraulic system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000345511A (en) * | 1999-06-03 | 2000-12-12 | Meiwa Seisakusho:Kk | Hydraulic oil tank for hand-guide type vibration roller |
-
2015
- 2015-12-25 CN CN201510984884.3A patent/CN105422529B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202185344U (en) * | 2011-03-03 | 2012-04-11 | 安徽惊天液压智控股份有限公司 | Hydraulic drive system of fixed crusher |
| CN202073872U (en) * | 2011-04-12 | 2011-12-14 | 新乡平原航空技术工程有限公司 | Driving experiment device of hydraulic motor for airplane generator |
| CN203194163U (en) * | 2013-04-28 | 2013-09-18 | 河北中农博远农业装备有限公司 | Machine-body hydraulic driving system of combine harvester |
| CN103471829A (en) * | 2013-09-05 | 2013-12-25 | 南京工业大学 | Multi-way valve test bed of hydraulic excavator |
| CN205243990U (en) * | 2015-12-25 | 2016-05-18 | 郑州宇通重工有限公司 | Be provided with closed hydraulic tank and open hydraulic tank's hydraulic system |
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| Publication number | Publication date |
|---|---|
| CN105422529A (en) | 2016-03-23 |
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