CN102410286B - Cooling system, hydraulic transmission system comprising same and vehicle - Google Patents
Cooling system, hydraulic transmission system comprising same and vehicle Download PDFInfo
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- CN102410286B CN102410286B CN201110350147.XA CN201110350147A CN102410286B CN 102410286 B CN102410286 B CN 102410286B CN 201110350147 A CN201110350147 A CN 201110350147A CN 102410286 B CN102410286 B CN 102410286B
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Abstract
The invention provides a cooling system, a hydraulic transmission system comprising same and a vehicle. The cooling system is used for cooling the hydraulic fluid of the hydraulic transmission system and comprises a hydraulic fluid flow-in pipeline, a cooling device and a hydraulic fluid flow-out pipeline, wherein the hydraulic fluid flow-in pipeline is connected between the hydraulic transmission system and the cooling device; the hydraulic fluid flows in the cooling device from the hydraulic transmission system through the hydraulic fluid flow-in pipeline; the hydraulic fluid flow-out pipeline is connected between the cooling device and the hydraulic transmission system; the hydraulic fluid flows back to the hydraulic transmission system from the cooling device through the hydraulic fluid flow-out pipeline; and the cooling system also comprises at least one energy storage device which is connected to the hydraulic fluid flow-in pipeline.
Description
Technical field
The present invention relates to hydraulic equipment technical field, relate in particular to the pulsation of high-pressure oil passage absorption system, relax hydraulic circuit design and the improvement fields such as hydraulic shock.
Background technique
Hydraulic Power Transmission System, also can be referred to as hydraulic system, is the system that a kind of variation of the volume that utilizes the hydraulic fluid (or hydraulic fluid) in sealed volume carrys out transferring power (energy).Hydraulic Power Transmission System generally can comprise following components: energy part, and for mechanical energy being converted to the pressure energy of hydraulic fluid, for example, various types of oil hydraulic pumps etc.; Do-part, for the pressure energy of hydraulic fluid being converted to the mechanical energy that drives workpiece motion, for example, oil hydraulic cylinder, oil hydraulic motor etc.; Regulating and controlling part, for controlling and the pressure of the hydraulic fluid of regulator solution pressing system, flow, the flow direction etc., to meet the requirement of the required power of workpiece (moment), speed (rotating speed) and motion cycle, for example, various pressure valve, Flow valve, selector valve etc.Except above-mentioned part, Hydraulic Power Transmission System can also comprise slave part, for example, hydraulic fluid storage tank (fuel tank), hydraulic fluid transport tube (oil pipe), hydraulic fluid filter (oil purifier), accumulator, pressure gauge, heater and/or radiator etc., to guarantee the reliability and stability of Hydraulic Power Transmission System work.
The hydraulic fluid (or hydraulic fluid) that Hydraulic Power Transmission System adopts is generally mineral oil, and therefore hydraulic fluid is also referred to as hydraulic oil.Because rising temperature can make the cohesive force of liquid reduce, so the viscosity of liquid is very sensitive for temperature, for example, in the time that temperature raises slightly, fluid viscosity may significantly decline.The viscosity with temperature of every kind of liquid and viscosity-temperature difference of changing.Generally, for Hydraulic Power Transmission System, require the viscosity with temperature of the hydraulic oil using in Hydraulic Power Transmission System to change the smaller the betterly, that is, require hydraulic oil to there is good glue-temperature characteristics.
Carry out transformation of energy in Hydraulic Power Transmission System time, for example, in the time that mechanical energy converts the pressure energy of hydraulic oil to, or in the time that the pressure energy of hydraulic oil converts the mechanical energy that drives workpiece motion to, the energy of a part can be converted to heat energy.Such heat energy causes the temperature of hydraulic oil to raise, and causes the viscosity-modifying of hydraulic oil.Therefore, can radiator be set in Hydraulic Power Transmission System, to reduce the temperature of hydraulic oil by making hydraulic oil flow through radiator.
But in the time that Hydraulic Power Transmission System is worked, flowing to the pressure of hydraulic oil of radiator and flow can be under the control of regulating and controlling part and constantly change.So continuous variation of the pressure of hydraulic oil and flow has caused impact to radiator, thereby may seriously affect the working life of radiator.
Summary of the invention
Embodiment's object is to overcome above and other shortcoming in the prior art.For this reason, embodiment provides a kind of radiation system, and described radiation system can be the hydraulic fluid heat radiation of Hydraulic Power Transmission System.
According to one exemplary embodiment of the present invention, a kind of radiation system can comprise that hydraulic fluid flows into pipeline, sink and hydraulic fluid flow out pipeline, described hydraulic fluid flows into pipeline and is connected between described Hydraulic Power Transmission System and described sink, hydraulic fluid flows into pipeline from described Hydraulic Power Transmission System by described hydraulic fluid and flow to described sink, described hydraulic fluid flows out pipeline and is connected between described sink and described Hydraulic Power Transmission System, hydraulic fluid is flowed and is got back to described Hydraulic Power Transmission System by described hydraulic fluid outflow pipeline from described sink, wherein, described radiation system also comprises at least one accumulator, described at least one accumulator is connected to described hydraulic fluid and flows into pipeline.
Described at least one accumulator can be bladder accumulator.
Described at least one accumulator can be the multiple accumulators that are connected in parallel with each other.
Described radiation system can also comprise vent relief valve, described vent relief valve can and described sink be connected in parallel that described hydraulic fluid flows into pipeline and described hydraulic fluid flows out between pipeline.
Described sink can comprise heat dissipation pipeline, and the hydraulic fluid flowing into described sink from described hydraulic fluid inflow pipeline can flow through described heat dissipation pipeline, to dispel the heat.
The total working volume V of described at least one accumulator
0can meet formula below:
Wherein, P
2flow into the highest pressure of the hydraulic fluid pipeline for flow into described hydraulic fluid from described Hydraulic Power Transmission System, P
0for the inflation pressure of described at least one accumulator, m is the gross mass that flow into the hydraulic fluid described hydraulic fluid inflow pipeline from described Hydraulic Power Transmission System, and v is that hydraulic fluid flows into the flow velocity in pipeline at described hydraulic fluid.
According to one exemplary embodiment of the present invention, a kind of Hydraulic Power Transmission System can comprise radiation system as above.
According to one exemplary embodiment of the present invention, a kind of vehicle can comprise Hydraulic Power Transmission System as above.
Described vehicle can be scraper, and described Hydraulic Power Transmission System can provide power for the scraper operation of described scraper.
Described radiation system can also comprise connector element, and described at least one accumulator can be installed in by described connector element the inner side place of the off hind wheel steel cage of described scraper.
According to exemplary embodiment of the present invention; because comprised accumulator at radiation system; so can greatly reduce the pressure of hydraulic fluid and the fluctuation of flow by sink, sink is played a very good protection, extend the working life of sink.
Accompanying drawing explanation
By the detailed description below in conjunction with accompanying drawing, can more clearly understand of the present invention above with other aspect, feature and other advantages, in the accompanying drawings:
Fig. 1 is the diagram schematically showing according to the radiation system of exemplary embodiment of the present invention;
Fig. 2 is the plan view illustrating according to the accumulator in the radiation system of exemplary embodiment of the present invention.
Embodiment
Hereinafter, describe with reference to the accompanying drawings exemplary embodiment of the present invention in detail.But exemplary embodiment of the present invention can be implemented in many different forms, and should not be limited to the example of setting forth here.On the contrary, providing these examples to make the disclosure will be thoroughly also complete, and scope of the present invention is conveyed to those skilled in the art fully.For the sake of clarity, size and the relative size in layer and region have been exaggerated in the accompanying drawings.In the accompanying drawings, identical label represents identical element all the time.
Fig. 1 is the diagram schematically showing according to the radiation system 1 of exemplary embodiment of the present invention.As shown in fig. 1, can comprise that according to the radiation system 1 of exemplary embodiment of the present invention hydraulic fluid flows into pipeline 2, sink 3 and hydraulic fluid and flows out pipeline 4.
Hydraulic fluid flows into pipeline 2 and for example can be connected to, between outside (, Hydraulic Power Transmission System, not shown) and sink 3.As shown in fig. 1, hydraulic fluid can flow into pipeline 2 from outside (, Hydraulic Power Transmission System) by hydraulic fluid along the direction of arrow and flow in sink 3.According to current exemplary embodiment, hydraulic fluid can be mineral oil.But exemplary embodiment of the present invention is not limited to this, according to other exemplary embodiment, radiation system can be the various hydraulic fluid heat radiations that use in Hydraulic Power Transmission System.
Hydraulic fluid flows out pipeline 4 and for example can be connected to, between sink 3 and outside (, Hydraulic Power Transmission System, not shown).As shown in fig. 1, the hydraulic fluid that has carried out heat radiation in sink 3 can flow out pipeline 4 by hydraulic fluid along the direction of arrow from sink 3 and flow to outside, for example, flows and gets back in Hydraulic Power Transmission System.
For hydraulic fluid is more effectively dispelled the heat, can adopt the various means such as diameter, the area that increases radiating fin, the power that improves fan that increase the length of heat dissipation pipeline, reduce heat dissipation pipeline.For example, sink 3 can comprise the heat dissipation pipeline that diameter is very little, for example, and capillary heat dissipation pipeline.For example, the minimum place of the diameter of capillary heat dissipation pipeline can be about 5mm.
The Hydraulic Power Transmission System with said structure can be applied in various vehicles, thinks that its various operations provide power.In one exemplary embodiment, described vehicle can be for example scraper, can provide power for the scraper operation of scraper according to the Hydraulic Power Transmission System of exemplary embodiment of the present invention.For example, described scraper can be TORO 1400E type electric LHD.
Middle deep place at the large-scale ground such as such as Yuxi Dahongshan iron ore, underground mines adopts sublevel caving method without sill pillar, has therefore adopted TORO 1400E type electric LHD.On the one hand, due to down-hole road out-of-flatness, the reason such as bend is many, ore packing density is large, strengthened the load of scraper.On the other hand, TORO 1400E electric LHD has adopted programmable logic controller (PLC) (PLC) in cable rolling system, PLC can be according to the actual quantity of cable in cable drum and take-up, cable laying, accelerate, the different operating modes such as braking, carry out the linearity control of take-up and cable laying, to avoid the tension force too drastic variation with the variation of the folding and unfolding length of cable on cable, , guarantee cable rolling as far as possible, the required tension force of cable laying pressure and cable quite (under normal circumstances, cable rolling pressure, cable laying pressure is not constant, PLC can guarantee cable rolling pressure according to the difference of operating mode, the required tension force of cable laying pressure and cable is suitable, in order to avoid cable rolling pressure, cable laying pressure excessive and damage cable, cable rolling pressure too small and cause cable not in time regain, rolled by vehicle etc.) and reduce hydraulic fluid flowed fluctuation amplitude (under normal circumstances, cable rolling pressure, the variation of cable laying pressure can cause the variation of the flow of the radiation system of flowing through, because for example TORO 1400E type electric LHD has adopted variable displacement pump to provide power for cable rolling system, so flow can change along with the variation of feedback pressure).But, along with the variation of cable tension force, in the Hydraulic Power Transmission System of TORO 1400E type electric LHD, in the heat dissipation pipeline of sink, flow and also can correspondingly change with pressure and the flow of the hydraulic fluid that dispels the heat.The pressure of hydraulic fluid and flowed fluctuation, also acute variation correspondingly of the impact of the heat dissipation pipeline to sink, thereby seriously affected working life of heat dissipation pipeline and whole sink.What in other words, the radiation system of the Hydraulic Power Transmission System to TORO 1400E type electric LHD produced major effect is cable rolling system.
The source of damage of the radiation system of the Hydraulic Power Transmission System of TORO 1400E type electric LHD is mainly: (be for example included in heat dissipation pipeline in sink, capillary heat dissipation pipeline) aging rear intensity decline, do not resist the hydraulic shock that the hydraulic fluid of heat dissipation pipeline produces of flowing through of TORO 1400E type electric LHD when work, such hydraulic shock can produce instantaneous high pressure, thereby may damage capillary heat dissipation pipeline.Cause the reason that heat dissipation pipeline is aging to mainly contain following binomial:
(1) hydraulic fluid physical property worsens
Hydraulic fluid can decompose gradually at a certain temperature, go bad, because the rotten rear character of hydraulic fluid is unstable, may with the material generation chemical reaction of heat dissipation pipeline, in addition the material generation chemical reaction that the long-term acidity being full of in down-hole and organic gas also can heat dissipation pipelines, therefore causes heat dissipation pipeline aging;
(2) heat dissipation pipeline material corrosion, dissolving
Hydraulic fluid is continuous-flow in heat dissipation pipeline, exist the factor such as the temperature difference, impurity simultaneously, make the material of heat dissipation pipeline occur to dissolve and corrosion, therefore flow resistance increases, and make the thermal conduction characteristic of heat dissipation pipeline deteriorated, and after the material of heat dissipation pipeline is corroded, can cause the intensity of heat dissipation pipeline to decline, even may cause the corrosion failure of heat dissipation pipeline, therefore cause heat dissipation pipeline aging.
For above-mentioned reasons, limited by operating conditions in well, heat dissipation pipeline aging inevitable.
Therefore; for extending the life-span of radiation system; the impact failure of protecting the hydraulic fluid that aging heat dissipation pipeline do not flowed therein, can also comprise accumulator 5 according to the radiation system 1 of exemplary embodiment of the present invention, the instantaneous pressure when effectively reducing hydraulic fluid by radiation system 1.
As shown in fig. 1, can comprise an accumulator 5 according to the radiation system 1 of exemplary embodiment of the present invention.But exemplary embodiment of the present invention is not limited to this.According to other exemplary embodiment, radiation system 1 can comprise multiple accumulators 5, and multiple accumulators 5 can be connected in parallel to each other, and so that the swept volume of expectation to be provided, this will be explained in more detail hereinafter.
Accumulator 5 can be the device for storing and discharge the pressure energy of hydraulic fluid.Specifically, in the time that the executive component of Hydraulic Power Transmission System needs rapid movement, can side by side supply with hydraulic fluid to oil hydraulic cylinder by accumulator and oil hydraulic pump.Longer when the time of the executive component stop motion of Hydraulic Power Transmission System, and while needing pressurize, for reducing energy consumption, making oil hydraulic pump off-load, the hydraulic fluid that can utilize accumulator to store compensates the leakage loss of hydraulic fluid, maintains system pressure.In addition, accumulator can also, as emergent hydraulic fluid source, maintain system pressure within a period of time, avoid power supply to interrupt suddenly or when oil hydraulic pump breaks down oil sources interrupt and the accident that causes.When oil hydraulic pump starting or stop, hydrovalve is cut out suddenly or when commutation, oil hydraulic cylinder starting or braking, in Hydraulic Power Transmission System, can produce hydraulic shock, can relax hydraulic shock, absorption system pulsation by accumulator is set.
Therefore, according to exemplary embodiment of the present invention, accumulator 5 can be connected to hydraulic fluid and flow into pipeline 2, the instantaneous peak value pressure of the hydraulic fluid producing while absorbing scraper high load running to flow at hydraulic fluid before sink 3, thereby to sink 3 (for example relax hydraulic fluid, capillary heat dissipation pipeline in sink) impact, therefore working life of heat radiation device 3 significantly.
According to exemplary embodiment of the present invention, one or more accumulators 5 can be bladder accumulator.But exemplary embodiment is not limited to this.According to other exemplary embodiment, accumulator 5 can be also the accumulator of the other types such as air bottle type accumulator, piston accumulator.
In addition, as shown in fig. 1, can also comprise vent relief valve 6 according to the radiation system 1 of current exemplary embodiment.Vent relief valve 6 can and sink 3 be connected in parallel hydraulic fluid and flow into pipeline 2 and hydraulic fluid and flow out between pipeline 4.Vent relief valve 6 can be opened in the time that system pressure is more than or equal to the set pressure of vent relief valve 6, so that system pressure no longer increases, system is played to overload protective function.
Although can prevent that the pressure of hydraulic fluid from increasing excessively by vent relief valve 6, but because the very slow reaction velocity of vent relief valve 6, so in the time that moment in Hydraulic Power Transmission System produces high pressure, vent relief valve 6 may not can be opened in time, may cause like this hydraulic fluid that pressure is very high to flow in sink 3, thus the element that causes being included in such as the aging heat dissipation pipeline etc. in sink 3 be subject to high pressure hydraulic fluid impact and damage.
But, according to current exemplary embodiment, accumulator 5 is connected to hydraulic fluid and flows into pipeline 2.Therefore, accumulator 5 can be before vent relief valve 6 be opened the instantaneous high pressure of absorption liquid hydraulic fluid, relax the impact of the element of hydraulic fluid to such as the capillary heat dissipation pipeline etc. in sink 3, therefore working life of heat radiation device 3 significantly.
In Fig. 1, only show vent relief valve 6 and sink 3 and be connected in parallel the example between hydraulic fluid inflow pipeline 2 and hydraulic fluid outflow pipeline 4.But exemplary embodiment is not limited to this.According to other exemplary embodiment, vent relief valve 6 can and sink 3 and accumulator 5 be connected in parallel that hydraulic fluid flows into pipeline 2 and hydraulic fluid flows out between pipeline 4, vent relief valve 6 and hydraulic fluid flow into the upstream of the position that position that pipeline 2 is connected can be connected at accumulator 5 and hydraulic fluid inflow pipeline 2.
The method of the swept volume of determining accumulator will be described in detail below.
According to exemplary embodiment of the present invention, the swept volume V of accumulator
0can meet formula below:
In superincumbent formula, P
2flow into the highest pressure (unit is Pa) of the hydraulic fluid pipeline for flow into hydraulic fluid from Hydraulic Power Transmission System.The in the situation that of TORO 1400E type electric LHD, in the process of scraper mechanical shovel ore deposit, motor power (output) reaches maximum value when reversible bucket, and flowing to hydraulic fluid, to flow into the pressure values of the hydraulic fluid in pipeline also the highest, in experiment, utilizes pressure gauge to record P
2for about 55bar, that is, approximately 5500000Pa.
P
0for the inflation pressure (unit is Pa) of accumulator.Conventionally flow into about 90% inflation of the operating pressure of pipeline by the hydraulic fluid that accumulator is installed.Because in the time that the pressure of hydraulic fluid inflow pipeline exceedes about 7bar, the vent relief valve of radiation system is opened, therefore the operating pressure of hydraulic fluid conduit is about 7bar, that is, and approximately 700000Pa.
M is the gross mass (unit is kg) that flow into the hydraulic fluid hydraulic fluid inflow pipeline from Hydraulic Power Transmission System.The in the situation that of TORO 1400E type electric LHD, the hydraulic fluid source of its Hydraulic Power Transmission System is provided by the quantitative hydraulic pump of an about 79L/min, and therefore the peak rate of flow of this Hydraulic Power Transmission System is about 79L/min.Density as the mineral oil of hydraulic fluid can approximate 0.7kg/L, a scraper scraper bowl used time of upset reaches about 1.8s, therefore flow into hydraulic fluid from this Hydraulic Power Transmission System and flows into hydraulic fluid quality m=(79/60) × 1.8 × 0.7=1.66 (kg) pipeline.
V is that hydraulic fluid flows into the flow velocity (unit is m/s) in pipeline at hydraulic fluid.The in the situation that of TORO1400E type electric LHD, under nominal situation, flow velocity is that about 79L/min calculates as 10.7m/s according to peak rate of flow,, hydraulic fluid density is about 0.7kg/L, hydraulic fluid flows into pipeline diameter and gets about 12.5mm, can calculate oil pipe sectional area, the time is about 1.8s, and therefore under nominal situation, the flow velocity of liquid is v=1.66/ (0.7 × 0.0122 × 1.8)=10.7 (m/s).According to Bernoulli's equation, square being inversely proportional to pipeline pressure value of the flow velocity of hydraulic fluid, therefore calculates to obtain hydraulic fluid v=3.8m/s while flowing in pipeline pressure maximum value, that is, and and P
0=7bar, P
2=55bar, under nominal situation, the flow velocity of liquid is v=10.7m/s when (being 7bar), can calculate and be P to the maximum when pressure
0v=3.8m/s when=55bar.
Therefore,, the in the situation that of TORO 1400E type electric LHD, the minimum swept volume that can calculate accumulator according to formula is above about 1.2L.
According to above result of calculation, the in the situation that of TORO 1400E type electric LHD, can select swept volume to be more than or equal to the accumulator of about 1.2L.But exemplary embodiment of the present invention is not limited to this, as mentioned above, can comprise multiple accumulators 4 according to the sink 1 of other exemplary embodiment.For example, in the example of the TORO 1400E type electric LHD of describing in detail in the above, the accumulator of two being connected in parallel that swept volume can be respectively to about 0.75L is connected to hydraulic fluid and flows into pipeline 2, in this example, the nominal operation pressure of described two accumulators can be all for example about 65bar.Under these circumstances, flow into the connecting pipeline of pipeline 2 can to select caliber d be the rubber high-voltage tube that about 12.5mm, length L are about 1000mm for described two accumulator apparatus being connected to hydraulic fluid.
Fig. 2 is the plan view illustrating according to two accumulators that are connected in parallel in the radiation system of exemplary embodiment of the present invention.
As shown in Figure 2, two accumulators 11 can be connected and be fixed to accumulator ABAP Adapter 13 with 12.Be connected to accumulator ABAP Adapter 13 by connecting pipeline 14, so that two accumulators 11 and 12 are connected in parallel, and two accumulators 11 and 12 that are connected in parallel be connected to hydraulic fluid inflow pipeline 2 (not shown).
Because swept volume is bigger than normal and limited the scope of its application compared with large accumulator volume, so according to exemplary embodiment of the present invention, selected less two accumulators 11 and 12 of swept volume that are connected in parallel.But exemplary embodiment of the present invention is not limited to this, in other embodiment, can selects to have the single accumulator of suitable swept volume, or there are multiple accumulators of suitable total working volume.In addition, compared with being connected in series mode, the two or more accumulators that are connected in parallel are more conducive to impact-absorbing in the time absorbing low frequency impact, and filter effect is better.
In addition, can also comprise connector element (not shown) according to the radiation system of exemplary embodiment of the present invention.For example, connector element can be arranged on accumulator ABAP Adapter 13 with connect by relative surface, the surface of connecting pipeline 14.In the example of the TORO 1400E type electric LHD of describing in detail in the above, accumulator can be installed in by connector element the inner side place of the off hind wheel steel cage of scraper, therefore accumulator can be installed easily and flexibly and not affect the normal work of miscellaneous part.
According to exemplary embodiment of the present invention, by accumulator is installed in radiation system, the fluctuation of pressure in the heat dissipation pipeline of sink is approximately 0bar～25bar.Therefore, significantly reduced the destruction of system hydraulic shock to heat dissipation pipeline, effectively extended sink working life, saved cost.
The working life of radiator, service condition contrast was as shown in the table before and after installing heat radiator protection device additional.
As mentioned above, according to exemplary embodiment of the present invention, utilize the absorption system that accumulator has to pulse, relax the action principle of hydraulic shock, the for example hydraulic oil cooling device of TORO 1400E type scraper is reequiped, its objective is in order for example to solve TORO 1400E type scraper hydraulic oil cooling device when the underground work and damage problem frequently.
According to exemplary embodiment of the present invention; utilize accumulator to there is the action principle of absorption system pulsation, mitigation hydraulic shock; on oil circuit before hydraulic oil passes through sink, an accumulator in parallel is as protective gear; the instantaneous peak value pressure that during with the high load running of absorption scraper, hydraulic circuit produces; relax the impact of the capillary pipeline of hydraulic oil to sink, therefore working life of heat radiation device significantly.
According to exemplary embodiment of the present invention; because comprised accumulator at radiation system; so can greatly reduce the pressure of hydraulic fluid and the fluctuation of flow by sink, sink is played a very good protection, extend the working life of sink.
Although illustrated and described the example of exemplary embodiment of the present invention, but what those skilled in the art should understand that is, exemplary embodiment of the present invention is not limited to this, in the case of not departing from the spirit and scope of the present invention that limit as claim, can carry out various modifications to these exemplary embodiments.
Claims (8)
1. a radiation system, is characterized in that, the hydraulic fluid heat radiation that described radiation system is Hydraulic Power Transmission System, and described radiation system comprises that hydraulic fluid flows into pipeline, sink and hydraulic fluid and flows out pipeline,
Described hydraulic fluid flows into pipeline and is connected between described Hydraulic Power Transmission System and described sink, and hydraulic fluid flows into pipeline from described Hydraulic Power Transmission System by described hydraulic fluid and flow to described sink,
Described hydraulic fluid flows out pipeline and is connected between described sink and described Hydraulic Power Transmission System, and hydraulic fluid is flowed and got back to described Hydraulic Power Transmission System by described hydraulic fluid outflow pipeline from described sink,
Wherein, described radiation system also comprises at least one accumulator, and described at least one accumulator is connected to described hydraulic fluid and flows into pipeline,
Described at least one accumulator is bladder accumulator,
The total working volume V of described at least one accumulator
0meet formula below:
Wherein, P
2flow into the highest pressure of the hydraulic fluid pipeline for flow into described hydraulic fluid from described Hydraulic Power Transmission System, P
0for the inflation pressure of described at least one accumulator, m is the gross mass that flow into the hydraulic fluid described hydraulic fluid inflow pipeline from described Hydraulic Power Transmission System, and v is that hydraulic fluid flows into the flow velocity in pipeline at described hydraulic fluid.
2. radiation system as claimed in claim 1, is characterized in that, described at least one accumulator is the multiple accumulators that are connected in parallel with each other.
3. radiation system as claimed in claim 1, is characterized in that, described radiation system also comprises vent relief valve, and described vent relief valve and described sink are connected in parallel described hydraulic fluid and flow between pipeline and described hydraulic fluid outflow pipeline.
4. radiation system as claimed in claim 1, is characterized in that, described sink comprises heat dissipation pipeline, and the hydraulic fluid flowing into described sink from described hydraulic fluid inflow pipeline flows through described heat dissipation pipeline, to dispel the heat.
5. a Hydraulic Power Transmission System, is characterized in that, described Hydraulic Power Transmission System comprises the radiation system as described in any one claim in claim 1-4.
6. a vehicle, is characterized in that, described vehicle comprises Hydraulic Power Transmission System as claimed in claim 5.
7. vehicle as claimed in claim 6, is characterized in that, described vehicle is scraper, and the scraper operation that described Hydraulic Power Transmission System is described scraper provides power.
8. vehicle as claimed in claim 7, is characterized in that, described radiation system also comprises connector element, and described at least one accumulator is installed in the inner side place of the off hind wheel steel cage of described scraper by described connector element.
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| CN201110350147.XA CN102410286B (en) | 2011-11-08 | 2011-11-08 | Cooling system, hydraulic transmission system comprising same and vehicle |
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| CN201110350147.XA CN102410286B (en) | 2011-11-08 | 2011-11-08 | Cooling system, hydraulic transmission system comprising same and vehicle |
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| CN102410286B true CN102410286B (en) | 2014-05-21 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4348863A (en) * | 1978-10-31 | 1982-09-14 | Taylor Heyward T | Regenerative energy transfer system |
| CN1243079A (en) * | 1998-07-26 | 2000-02-02 | 欧阳抗美 | Hydraulic power supply of electronic automatic controller of automobile mechanical gear shifting box |
| CN1250508A (en) * | 1997-03-20 | 2000-04-12 | 弗鲁泰克流体技术仪器有限公司 | Fluid cooling device |
| CN201190297Y (en) * | 2008-04-30 | 2009-02-04 | 常林股份有限公司 | Cooling device for scraper machine |
| CN102102687A (en) * | 2009-12-18 | 2011-06-22 | 上海凯迪克航空工程技术有限公司 | Hydraulic pressure source device |
-
2011
- 2011-11-08 CN CN201110350147.XA patent/CN102410286B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4348863A (en) * | 1978-10-31 | 1982-09-14 | Taylor Heyward T | Regenerative energy transfer system |
| CN1250508A (en) * | 1997-03-20 | 2000-04-12 | 弗鲁泰克流体技术仪器有限公司 | Fluid cooling device |
| CN1243079A (en) * | 1998-07-26 | 2000-02-02 | 欧阳抗美 | Hydraulic power supply of electronic automatic controller of automobile mechanical gear shifting box |
| CN201190297Y (en) * | 2008-04-30 | 2009-02-04 | 常林股份有限公司 | Cooling device for scraper machine |
| CN102102687A (en) * | 2009-12-18 | 2011-06-22 | 上海凯迪克航空工程技术有限公司 | Hydraulic pressure source device |
Non-Patent Citations (2)
| Title |
|---|
| 全液压推土机液压***散热方案;熊逸群等;《工程机械》;20060710(第7期);第46－48页 * |
| 熊逸群等.全液压推土机液压***散热方案.《工程机械》.2006,(第7期), |
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