CN102536932A - Compression garbage truck and hydraulic system thereof - Google Patents
Compression garbage truck and hydraulic system thereof Download PDFInfo
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- CN102536932A CN102536932A CN201210007153XA CN201210007153A CN102536932A CN 102536932 A CN102536932 A CN 102536932A CN 201210007153X A CN201210007153X A CN 201210007153XA CN 201210007153 A CN201210007153 A CN 201210007153A CN 102536932 A CN102536932 A CN 102536932A
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- 230000006835 compression Effects 0.000 title claims abstract description 13
- 238000007906 compression Methods 0.000 title claims abstract description 13
- 239000003921 oil Substances 0.000 claims abstract description 212
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 27
- 230000017105 transposition Effects 0.000 claims abstract description 10
- 230000003028 elevating effect Effects 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 8
- 230000007306 turnover Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000014509 gene expression Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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Abstract
The invention provides a hydraulic system which comprises a double-oil-connection pump, a main oil duct, a first valve-connection group, a second valve-connection group, a first oil cylinder system and a second oil cylinder system. The hydraulic system further comprises a control unit and an oil return unit, the first valve unit, the control unit, the oil return unit and the second valve unit are sequentially connected through a main oil duct, the control unit comprises a multi-directional transposition valve, the oil return unit is communicated with an oil return port of the main oil duct, and the oil return unit comprises an internal oil duct; the hydraulic system comprises a confluence state and a linkage state, when in the confluence state, hydraulic oil of a first oil pump sequentially passes through a first valve group and an oil passage of a control joint and a multi-directional transposition valve of the control joint to enter an internal oil passage of an oil return joint and converge with hydraulic oil of a second oil pump at a second valve group to realize confluence, when in the linkage state, the multi-directional transposition valve of the control joint is in a middle position, and the first valve group and the second valve group independently complete operation. The invention also provides a compression garbage truck adopting the hydraulic system.
Description
Technical field
The present invention relates to the hydraulic system field, particularly a kind of hydraulic system of compression garbage truck.
Background technique
Existing hydraulic system generally adopts multiple directional control valve to control; In order to cut down the consumption of energy and to improve operating efficiency; Present hydraulic system adopts double-united oil pump as power source more, in operation process, to the control of two oil pump flow; Like operating modes such as interlock (working during the double pump independent same), interflow, existing technology has following two kinds of modes.
First kind of mode sees also Fig. 1, and one group of multiple directional control valve is only controlled a pressure oil-source, if want two pressure oil-source interflow just necessary with two groups of multiple directional control valves.This mode adopts first group of valve 1 and second group of valve 2 to control the hydraulic oil by oil inlet P 1, P2 entering system respectively; Through exterior line A two groups of multiple directional control valves are connected; Adopt the interflow preferential, first group of valve 1 of this method and second group of valve 2 can not be worked simultaneously, because the oil return of first group of valve 1 must be through the oil circuit of second group of valve 2; And it is bigger to take up room, and pipeline connects comparatively numerous and diverse.
The second way sees also Fig. 2, and two groups of multiple directional control valves are merged into one group, adopts the interflow to join 3 also with an one-way valve 4 control interflow directions.This mode joins 3 with two groups of valve integrators through the interflow, increases by an one-way valve 4 in the interflow couplet 3, controls oily flow path direction, and the hydraulic oil that is got into system by oil inlet P 1 is through interflow couplet 3 and the hydraulic oil interflow that is got into system by oil inlet P 2.The same interflow of adopting is preferential, though two groups of valves can be worked simultaneously, the interflow flow is uncontrollable, as under the interlock operating mode, as long as wherein one group of valve quits work, gets into the interflow operating mode at once, causes flowed fluctuation, influences the smooth running of motion.
Fig. 3 is the duplex pump hydraulic system principle figure that rear-loading compression type garbage truck adopts the second way, label 5 expression shoveling oil cylinders among the figure, and 6 expression skateboard tanks, 7 expression scraper plate oil cylinders, 8 expression elevating rams, a barrel oil cylinder is turned in 9 expressions.This hydraulic system will satisfy following working condition requirement: one: the hydraulic oil that is got into system by oil inlet P 1, P2 can interflow work.Two: the hydraulic oil that gets into system by oil inlet P 1, the P2 i.e. interlock of working simultaneously respectively again.Though this kind mode can satisfy above-mentioned two working condition requirements; But have a significant disadvantages, the hydraulic oil that gets into system by oil inlet P 1 exactly is through the selector valve that is communicated with elevating ram 8 and cross the interflow with the meta that turns over the selector valve that barrel oil cylinder 9 is communicated with through oil duct d and join 10 and collaborate with the hydraulic oil completion that is got into systems by oil inlet P 2 through oil duct c, satisfies the compression operation operating mode that skateboard tank 6 and scraper plate oil cylinder 7 move in order; But this system is under the interlock operating mode as turn over 9 actions of barrel oil cylinder during intermittence; Just become the interflow operating mode, when causing the flow of compression during operation timesharing with, flowed fluctuation property is bigger; The compressing mechanism movement velocity is sometimes fast and sometimes slow, moves not steady.
Summary of the invention
The present invention provides a kind of hydraulic system, can satisfy the interflow of double-united oil pump and the working condition requirement of interlock, the operation stability of flow, and the assurance mechanism motion is steady, and has simplified the connection of pipeline, has reduced the pressure loss.
For reaching above-mentioned advantage; The present invention provides a kind of hydraulic system; Comprise double-united oil pump, total oil duct, the first valve group, the second valve group, first cylinder system, reach second cylinder system, this double-united oil pump comprises first oil pump and second oil pump, and this total oil duct comprises first filler opening, second filler opening, reaches return opening; This first valve group and this second valve group are connected with this first cylinder system and this second cylinder system respectively; The hydraulic oil of this first oil pump is supplied with this first valve group via first filler opening of this total oil duct, and the hydraulic oil of this second oil pump is supplied with this second valve group via second filler opening of this total oil duct, and this hydraulic system comprises that further control joins and oil return joins; This first valve group, this control join, this oil return joins and this second valve group connects through this total oil duct successively; This control joins and comprises multidirectional transposition valve, and this oil return joins and is communicated with the return opening of this total oil duct, and this oil return joins and comprises inner oil duct; This hydraulic system comprises interflow and interlock two states; When collaborating state; The oil duct junction of the multidirectional transposition valve that the hydraulic oil of this first oil pump joins through this first valve group and this control successively and joined by this control gets into inside oil duct that this oil return joins and converges realization with the hydraulic oil of this second oil pump in this second valve group and collaborate; When linkage status, this multidirectional transposition valve that this control joins is in meta, and this first valve group and this second valve group independently fulfil assignment separately.
In one embodiment of this invention, this first valve group comprises that at least one joins valve, and this first cylinder system comprises at least one oil cylinder.
In one embodiment of this invention; This first valve group comprises first valve, second valve, reaches the 3rd valve; This first, second, and the 3rd valve comprise a multiple directional control valve and an one-way valve separately, this first cylinder system comprise respectively with this first, second, and first oil cylinder, second oil cylinder that are connected of the 3rd valve, reach the 3rd oil cylinder.
In one embodiment of this invention; This first oil cylinder, second oil cylinder, and the 3rd oil cylinder be respectively shoveling oil cylinder, skateboard tank, and scraper plate oil cylinder; This shoveling oil cylinder forms the shoveling loop through this total oil duct and this first valve; This skateboard tank forms the slide plate loop through this total oil duct and this second valve, and this scraper plate oil cylinder forms the scraper plate loop through this total oil duct and the 3rd valve.
In one embodiment of this invention, this second valve group comprises that at least one joins valve, and this second cylinder system comprises at least one oil cylinder.
In one embodiment of this invention; This second valve group comprises quadruple valve and 5-linked valve; The 4th and this 5-linked valve comprise a multiple directional control valve and an one-way valve separately, this second cylinder system comprises the 4th oil cylinder and the 5th oil cylinder that is connected with this quadruple valve and 5-linked valve respectively.
In one embodiment of this invention; The 4th oil cylinder and the 5th oil cylinder are respectively elevating ram and turn over a barrel oil cylinder; This elevating ram forms the lifting loop through this total oil duct and this quadruple valve, and this turns over barrel oil cylinder and turns over a barrel loop through this total oil duct and the formation of this 5-linked valve.
In one embodiment of this invention, this first valve group and this second valve group respectively comprise a relief valve.
For reaching above-mentioned advantage, the present invention provides a kind of compression garbage truck, and this compression garbage truck is provided with above-mentioned hydraulic system.
The present invention compared with prior art joins valve with two groups and is combined into one; Control couplet through the centre is connected with special oil return couplet, through the control that control is joined, satisfies the interflow of double-united oil pump and the working condition requirement of interlock well; The operation stability of flow, the assurance mechanism motion is steadily; Oil duct through in the oil return couplet is concentrated oil return, has simplified the connection of pipeline, has reduced the pressure loss, and is easy for installation, and beautiful shape is concentrated.
For let above and other objects of the present invention, feature and advantage can be more obviously understandable, hereinafter is special lifts preferred embodiment, and cooperates appended graphicly, elaborates as follows.
Description of drawings
Fig. 1 is a kind of schematic diagram of existing hydraulic system.
Fig. 2 is the schematic diagram of another kind of existing hydraulic system.
Fig. 3 is the schematic diagram that existing rear-loading compression type garbage truck adopts the hydraulic system among Fig. 2.
Fig. 4 is the schematic diagram of the hydraulic system of the compression garbage truck in the embodiment of the invention.
Embodiment
Fig. 4 is the principle schematic of the hydraulic system of the compression garbage truck in the embodiment of the invention.Please with reference to Fig. 4, in present embodiment, hydraulic system comprises main valve 20, double-united oil pump 30, fuel tank 40, first cylinder system 50, second cylinder system 52, and total oil duct 60.Double-united oil pump 30 comprises first oil pump 32 and second oil pump 34.Fuel tank 40 is connected with double-united oil pump 30, and double-united oil pump 30 is connected with main valve 20.Total oil duct 60 comprises first oil inlet P 1, second oil inlet P 2, first oil return inlet T 1, and second oil return inlet T 2; In present embodiment; Hydraulic oil in total oil duct 60 is through 1 oil return of first oil return inlet T; Certainly, also can select through 2 oil returns of second oil return inlet T according to the needs of actual conditions, the present invention is not as limit.The oil inlet end of total oil duct 60 is provided with oil suction filter 62, and the oil revolving end of total oil duct 60 is provided with return filter 64.
In present embodiment, the first valve group 22 comprises first valve 220, second valve 222, the 3rd valve 224, and first relief valve 226.226 pairs first valve groups 22 of first relief valve play level pressure overflow effect and safety protection effect.First valve 220 comprises that the first multiple directional control valve V1 and first one-way valve, 221, the second valves 222 comprise that the second multiple directional control valve V2 and second one-way valve, 223, the three valves 224 comprise the 3rd multiple directional control valve V3 and the 3rd one-way valve 225.
In present embodiment, the second valve group 24 comprises quadruple valve 240,5-linked valve 242, reaches second relief valve 244.Quadruple valve 240 comprises that the 4th multiple directional control valve V4 and the 4th one-way valve 241, the 5-linked valves 242 comprise the 5th multiple directional control valve V5 and the 5th one-way valve 243.244 pairs second valve groups 24 of second relief valve play level pressure overflow effect and safety protection effect.
In present embodiment, first cylinder system 50 comprises that shoveling oil cylinder 500, skateboard tank 502, scraper plate oil cylinder 504, the second cylinder systems 52 comprise elevating ram 506 and turn over barrel oil cylinder 508.Shoveling oil cylinder 500 forms the shoveling loop through the total oil duct 60 and first valve 220.Skateboard tank 502 forms the slide plate loop through the total oil duct 60 and second valve 222.Scraper plate oil cylinder 504 forms the scraper plate loop through total oil duct 60 and the 3rd valve 224.Elevating ram 506 forms the lifting loop through total oil duct 60 and quadruple valve 240.Turn over barrel oil cylinder 508 and turn over a barrel loop through total oil duct 60 and 242 formation of 5-linked valve.
In present embodiment, this first valve group 22 comprises three couplet valves, and this first cylinder system 50 comprises three oil cylinders.In other embodiments, this first valve group 22 can comprise that at least one joins valve, and this first cylinder system 50 can comprise that at least one joins at least one oil cylinder that valve is connected with this.
In present embodiment, this second valve group 24 comprises two couplet valves, and this second cylinder system 52 comprises two oil cylinders.In other embodiments, this second valve group 24 can comprise that at least one joins valve, and this second cylinder system 52 can comprise that at least one joins at least one oil cylinder that valve is connected with this.
In present embodiment, control joins 26 and comprises the 6th multiple directional control valve V6 and the 6th one-way valve 260.Oil return joins 28 and comprises inner oil duct 280.Control join 26 be that the inside oil duct 280 of upper oil duct junction A through oil return couplet 28 of the 6th multiple directional control valve V6 is communicated with the oil duct of the second valve group 24.In addition, the return opening of total oil duct 60 also is arranged on oil return and joins 28, that is to say that the first valve group 22 and the second valve group 24 all concentrate oil return through the oil duct that oil return joins in 28, has simplified the connection of pipeline, has reduced the pressure loss.
When compressing vehicle is in holding state; The hydraulic oil that first oil pump 32 comes out also joins 26 oil duct entering oil return couplet 28 via first oil inlet P 1 of total oil duct 60 through the first valve group 22 and control; The hydraulic oil that second oil pump 34 comes out gets into oil return via second oil inlet P 2 of total oil duct 60 and the oil duct through the second valve group 24 and joins hydraulic oil that 28, the first oil pumps 32 and second oil pump 34 come out and join 28 in oil return and converge and be communicated with first oil return inlet T 1.When needs collaborate operation; As when compressing operation; The hydraulic oil that first oil pump 32 comes out joins 28 inside oil duct 280 through the oil duct a of the first valve group 22 and through the upper oil duct junction A entering oil return of controlling couplet 26; The hydraulic oil that comes out with second oil pump 34 converges at the oil duct b of the second valve group 24, realizes the interflow of hydraulic oil.When needs link; The 6th multidirectional transposition valve V6 of control couplet 26 is in meta; Hydraulic oil in the first valve group 22 and the second valve group 24 is in disconnected state, and the first valve group 22 and the second valve group 24 can independently fulfil assignment separately and be independent of each other.
The present invention compared with prior art joins valve with two groups and is combined into one; Control couplet 26 through the centre is connected with special oil return couplet 28, through control is joined 26 control, satisfies the interflow of double-united oil pump 30 and the working condition requirement of interlock well; The operation stability of flow, the assurance mechanism motion is steadily; Oil duct through oil return joins in 28 is concentrated oil return, has simplified the connection of pipeline, has reduced the pressure loss, and is easy for installation, and beautiful shape is concentrated.
The above only is embodiments of the invention, is not the present invention is done any pro forma restriction; Though the present invention discloses as above with embodiment; Yet be not in order to limiting the present invention, anyly be familiar with the professional and technical personnel, in not breaking away from technological scheme scope of the present invention; When the technology contents of above-mentioned announcement capable of using is made a little change or is modified to the equivalent embodiment of equivalent variations; In every case be not break away from technological scheme content of the present invention, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of technological scheme of the present invention according to technical spirit of the present invention.
Claims (9)
1. hydraulic system; Comprise double-united oil pump, total oil duct, the first valve group, the second valve group, first cylinder system, reach second cylinder system; This double-united oil pump comprises first oil pump and second oil pump; This total oil duct comprises first filler opening, second filler opening, reaches return opening, and this first valve group and this second valve group are connected with this first cylinder system and this second cylinder system respectively, and the hydraulic oil of this first oil pump is supplied with this first valve group via first filler opening of this total oil duct; The hydraulic oil of this second oil pump is supplied with this second valve group via second filler opening of this total oil duct; It is characterized in that: this hydraulic system comprises that further control joins and oil return joins, and this first valve group, this control join, this oil return joins and this second valve group connects through this total oil duct successively, and this control joins and comprises multidirectional transposition valve; This oil return joins and is communicated with the return opening of this total oil duct, and this oil return joins and comprises inner oil duct; This hydraulic system comprises interflow and interlock two states; When collaborating state; The oil duct junction of the multidirectional transposition valve that the hydraulic oil of this first oil pump joins through this first valve group and this control successively and joined by this control gets into inside oil duct that this oil return joins and converges realization with the hydraulic oil of this second oil pump in this second valve group and collaborate; When linkage status, this multidirectional transposition valve that this control joins is in meta, and this first valve group and this second valve group independently fulfil assignment separately.
2. hydraulic system as claimed in claim 1 is characterized in that: this first valve group comprises that at least one joins valve, and this first cylinder system comprises at least one oil cylinder.
3. hydraulic system as claimed in claim 2; It is characterized in that: this first valve group comprises first valve, second valve, reaches the 3rd valve; This first, second, and the 3rd valve comprise a multiple directional control valve and an one-way valve separately, this first cylinder system comprise respectively with this first, second, and first oil cylinder, second oil cylinder that are connected of the 3rd valve, reach the 3rd oil cylinder.
4. hydraulic system as claimed in claim 3; It is characterized in that: this first oil cylinder, second oil cylinder, and the 3rd oil cylinder be respectively shoveling oil cylinder, skateboard tank, and scraper plate oil cylinder; This shoveling oil cylinder forms the shoveling loop through this total oil duct and this first valve; This skateboard tank forms the slide plate loop through this total oil duct and this second valve, and this scraper plate oil cylinder forms the scraper plate loop through this total oil duct and the 3rd valve.
5. hydraulic system as claimed in claim 1 is characterized in that: this second valve group comprises that at least one joins valve, and this second cylinder system comprises at least one oil cylinder.
6. hydraulic system as claimed in claim 5; It is characterized in that: this second valve group comprises quadruple valve and 5-linked valve; The 4th and this 5-linked valve comprise a multiple directional control valve and an one-way valve separately, this second cylinder system comprises the 4th oil cylinder and the 5th oil cylinder that is connected with this quadruple valve and 5-linked valve respectively.
7. hydraulic system as claimed in claim 6; It is characterized in that: the 4th oil cylinder and the 5th oil cylinder are respectively elevating ram and turn over a barrel oil cylinder; This elevating ram forms the lifting loop through this total oil duct and this quadruple valve, and this turns over barrel oil cylinder and turns over a barrel loop through this total oil duct and the formation of this 5-linked valve.
8. hydraulic system as claimed in claim 1 is characterized in that: this first valve group and this second valve group respectively comprise a relief valve.
9. a compression garbage truck is characterized in that: comprise any described hydraulic system of claim 1 to 8.
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| CN201210007153XA CN102536932A (en) | 2012-01-11 | 2012-01-11 | Compression garbage truck and hydraulic system thereof |
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| CN201210007153XA CN102536932A (en) | 2012-01-11 | 2012-01-11 | Compression garbage truck and hydraulic system thereof |
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Cited By (20)
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| CN102852911A (en) * | 2012-10-11 | 2013-01-02 | 四川省四通车辆制造有限公司 | Self-adaptive hydraulic system |
| CN103470556A (en) * | 2013-08-30 | 2013-12-25 | 湖南三一路面机械有限公司 | Multi-way valve converging hydraulic system and land leveler |
| CN103644175A (en) * | 2013-12-08 | 2014-03-19 | 中国科学院合肥物质科学研究院 | Hydraulic drive system of component transferring trolley of nuclear fusion device |
| CN103964109A (en) * | 2014-05-07 | 2014-08-06 | 海沃机械(扬州)有限公司 | Control system and method for compression equipment in rubbish transfer station |
| CN104454699A (en) * | 2013-09-22 | 2015-03-25 | 江苏卡威专用汽车制造有限公司 | Integrated hydraulic system and butt-joint type garbage truck with same |
| CN105179341A (en) * | 2015-10-22 | 2015-12-23 | 北汽福田汽车股份有限公司 | Waste transfer truck hydraulic system and waste transfer truck |
| CN106499688A (en) * | 2016-12-20 | 2017-03-15 | 湖南鸿辉科技有限公司 | A kind of garbage-compressing control integral multitandem valve and control method |
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| CN106678130A (en) * | 2017-02-16 | 2017-05-17 | 数源科技股份有限公司 | Closed type variable rotating speed pump controlled hydraulic system of installing equipment of pure electric compression type garbage truck |
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| CN108138804A (en) * | 2015-10-16 | 2018-06-08 | Ｋｙｂ株式会社 | Fluid presses control loop and fluid pressure control device |
| CN108533544A (en) * | 2017-02-16 | 2018-09-14 | 数源科技股份有限公司 | A kind of energy-saving upper dress system of pure electric vehicle compression type garbage truck |
| CN109441897A (en) * | 2018-11-02 | 2019-03-08 | 上海强田液压股份有限公司 | A kind of dedicated multi-way valve of rear-loading compression type garbage truck |
| CN109538555A (en) * | 2018-12-04 | 2019-03-29 | 扬州盛达特种车有限公司 | A kind of energy-saving hydraulic system of garbage compression vehicle |
| CN110182497A (en) * | 2019-02-01 | 2019-08-30 | 长沙湘一机械有限公司 | Full-load sensitive control scraper type garbage compressor control method and circuit |
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Cited By (27)
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| CN102852911A (en) * | 2012-10-11 | 2013-01-02 | 四川省四通车辆制造有限公司 | Self-adaptive hydraulic system |
| CN102852911B (en) * | 2012-10-11 | 2015-11-18 | 深圳东风汽车有限公司 | Self-adaptive hydraulic system |
| CN103470556A (en) * | 2013-08-30 | 2013-12-25 | 湖南三一路面机械有限公司 | Multi-way valve converging hydraulic system and land leveler |
| CN103470556B (en) * | 2013-08-30 | 2016-07-27 | 湖南三一路面机械有限公司 | A kind of banked direction control valves combining hydraulic system and land leveller |
| CN104454699A (en) * | 2013-09-22 | 2015-03-25 | 江苏卡威专用汽车制造有限公司 | Integrated hydraulic system and butt-joint type garbage truck with same |
| CN103644175B (en) * | 2013-12-08 | 2016-07-06 | 中国科学院合肥物质科学研究院 | A kind of fluid power system of nuclear fusion device component transports car |
| CN103644175A (en) * | 2013-12-08 | 2014-03-19 | 中国科学院合肥物质科学研究院 | Hydraulic drive system of component transferring trolley of nuclear fusion device |
| CN103964109A (en) * | 2014-05-07 | 2014-08-06 | 海沃机械(扬州)有限公司 | Control system and method for compression equipment in rubbish transfer station |
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