CN101545502A - Compression garbage truck hydraulic system - Google Patents
Compression garbage truck hydraulic system Download PDFInfo
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- CN101545502A CN101545502A CN200810020078A CN200810020078A CN101545502A CN 101545502 A CN101545502 A CN 101545502A CN 200810020078 A CN200810020078 A CN 200810020078A CN 200810020078 A CN200810020078 A CN 200810020078A CN 101545502 A CN101545502 A CN 101545502A
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Abstract
The invention relates to a compression garbage truck hydraulic system, and belongs to the technical field of compression garbage truck transmission systems. The system comprises a multichannel conversion valve consisting of five groups of three-position six-way valves, an oil pump, an oil tank and an oil cylinder system mainly comprising a tipper oil cylinder, a filler lifting oil cylinder, an upper scraping plate oil cylinder, a lower scraping plate oil cylinder and a discharge plate oil cylinder, wherein a first oil inlet and a first oil outlet in respective mesoposition of the multichannel conversion valve are conducted, normally open, and are mutually connected in series on a main oil pipe; a second oil inlet, a third oil inlet, a second oil outlet and a third oil outlet in respective mesoposition are communicated with each oil cylinder respectively through oil pipes to form a dumping oil supply loop, a lifting oil supply loop, an upper scraping oil supply loop, a lower scraping oil supply loop and a discharge oil supply loop; one end of the main oil pipe is communicated with an outlet of the oil pump, while the other end is communicated with the oil tank; and a through oil pipe is arranged between the upper scraping oil supply loop and the discharge oil supply loop and provided with an unloading valve. The system can produce compression garbage with uniform compression ratio and prolong the service life.
Description
Technical field
The present invention relates to a kind of hydraulic system of special car, especially a kind of hydraulic system of compression garbage truck belongs to compression garbage truck transmission system technical field.
Background technique
Existing compression garbage truck to the mode that the rubbish of scraping in the compartment compresses generally is, with trash folder at upper scraping plate and after discharging between the plate, by upper scraping plate further motion and the relative static compression that realizes rubbish of discharging plate in the compartment, discharge plate by manual control behind the compression certain hour and retreat, in the compartment, to fill up the rubbish of compression gradually.The motion of upper scraping plate and discharge plate all realizes by Hydraulic Power Transmission System.
Therefore the motion of the discharge plate of above-mentioned existing compression garbage truck causes the waste density inequality after upper scraping plate and the compression of discharge plate at every turn owing to be manual control, is unfavorable for the accumulating and the reprocessing of rubbish in the car load railway carriage or compartment; And the compression of unified compressibility easily do not bring the control upper scraping plate and discharges the stability of the hydraulic work system of plate motion, and it influences hydraulic system working life for a long time.
Summary of the invention
The technical problem to be solved in the present invention is: propose a kind of compression garbage truck hydraulic system, this hydraulic system can and be discharged at upper scraping plate and be formed definite value pressure between the plate, thereby produces the compressed garbage of unified compressibility, and improves self working life.
In order to solve the problems of the technologies described above, technological scheme of the present invention is, a kind of compression garbage truck hydraulic system, comprise cylinder system, multiple directional control valve, oil pump and fuel tank, described cylinder system mainly contains tilting device oil cylinder, crammer hoist cylinder, upper scraping plate oil cylinder, lower scraping plate oil cylinder and discharges the leaf fat cylinder, and improvements are: described multiple directional control valve is made up of five groups of three six-way valves; Described five groups of three six-way valves first filler opening of meta and first oil outlet conducting are separately often opened and are one another in series in main oil pipe, its separately second filler opening, the 3rd filler opening and second oil outlet, the 3rd oil outlet of meta be communicated with by oil pipe with described each oil cylinder respectively and form respectively topple over oil supply loop, lifting oil supply loop, on scrape oil supply loop, scrape oil supply loop and discharge oil supply loop down; One end of described main oil pipe is communicated with the outlet of oil pump, and the other end is communicated with fuel tank; Scrape oil supply loop on described and discharge the straight-through oil pipe that is provided with between the oil supply loop two circuit communication, on the described straight-through oil pipe unloading valve is housed.
In the use, the upper scraping plate that drives on it when the upper scraping plate cylinder action begins to scrape rubbish fashionable in the compartment, discharge leaf fat cylinder is failure to actuate and is made the discharge plate on it be in a transfixion position earlier, rubbish is compressed between discharge plate and upper scraping plate, unloading valve on this moment straight-through oil pipe cuts out, on scrape oil supply loop and discharge between the oil supply loop and disconnect.Along with upper scraping plate and discharge between the plate distance and constantly dwindle, the suffered resistance of upper scraping plate is increasing, and this resistance that constantly increases causes down to be scraped the oil supply loop internal pressure and increase.When oil pressure is increased to certain value, open forcing the unloading valve of straight-through oil pipe, on scrape oil supply loop and discharge the oil supply loop conducting, on a part of pressure of scraping in the oil supply loop will pass to the discharge oil supply loop, cause and discharge the rising of oil supply loop pressure, in the compartment, move thereby promotion discharge plate leaves former position of rest; Upper scraping plate falls after rise and continues to scrape into rubbish and compressed garbage next time then.Work so repeatedly.
Compare existing compression garbage truck hydraulic system, the off-load power that compression garbage truck hydraulic system of the present invention can be set unloading valve is certain value, can make upper scraping plate and discharge the relative movement distance that keeps certain value between the plate, also just guarantee rubbish compressibility basically identical each time; Make simultaneously to scrape oil supply loop and discharge oil supply loop to be in the pressure stable fluctuation status all the time, be beneficial to the operating life of whole hydraulic system.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is the structure principle chart of compression garbage truck hydraulic system in the embodiment of the invention one.
Structure principle chart when Fig. 2 is a kind of user mode of Fig. 1.
Embodiment
Embodiment one
The present embodiment compression garbage truck hydraulic system comprises cylinder system, multiple directional control valve, oil pump 1 and fuel tank 2 as shown in Figure 1.Cylinder system mainly contains tilting device oil cylinder 3, crammer hoist cylinder 4, upper scraping plate oil cylinder 5, lower scraping plate oil cylinder 6 and discharges leaf fat cylinder 7.Multiple directional control valve is made up of five groups of three six three-way electromagnetic valves, is respectively the one or three six three-way electromagnetic valve SOL1, the two or three six three-way electromagnetic valve SOL2, the three or three six three-way electromagnetic valve SOL3, the four or three six three-way electromagnetic valve SOL4 and the five or three six three-way electromagnetic valve SOL5.Five groups three six three-way electromagnetic valve SOL1, SOL2, SOL3, SOL4 and SOL5 separately meta the first filler opening C1, C2, C3, C4, C5 and the first oil outlet D1, D2, D3, D4, D5 each other conducting often open, the first filler opening C1, C2, C3, C4, C5 and the first oil outlet D1, D2, D3, D4, D5 are series at respectively on the main oil pipe 8.Second oil inlet P 1, the 3rd filler opening O1 and the second oil outlet A1, the 3rd oil outlet B1 of the one or three six three-way electromagnetic valve SOL1 meta are communicated with by oil pipe and form with tilting device oil cylinder 3 respectively and topple over oil supply loop; Second oil inlet P 2, the 3rd filler opening O2 and the second oil outlet A2, the 3rd oil outlet B2 of the two or three six three-way electromagnetic valve SOL2 meta is communicated with by oil pipe with crammer hoist cylinder 4 respectively and forms the lifting oil supply loop; Second oil inlet P 3, the 3rd filler opening O3 and the second oil outlet A3, the 3rd oil outlet B3 of the three or three six three-way electromagnetic valve SOL3 meta are communicated with by oil pipe and form with upper scraping plate oil cylinder 5 respectively and scrape oil supply loop; Second oil inlet P 4, the 3rd filler opening O4 and the second oil outlet A4, the 3rd oil outlet B4 of the four or three six three-way electromagnetic valve SOL4 meta be communicated with by oil pipe with lower scraping plate oil cylinder 6 respectively and form under scrape oil supply loop; Second oil inlet P 5, the 3rd filler opening O5 and the second oil outlet A5, the 3rd oil outlet B5 of the five or three six three-way electromagnetic valve SOL5 meta respectively with discharge leaf fat cylinder 7 and be communicated with by oil pipe and form the discharge oil supply loop.On scrape oil supply loop and discharge the straight-through oil pipe 9 that is provided with between the oil supply loop two circuit communication, on straight-through oil pipe 9, unloading valve 10 is housed.
Last scraping pressure switch PS is housed on the oil supply loop.Be parallel with total spill pipe 11 on the main oil pipe 8, total spill pipe 11 is provided with main relief valve R1.Be respectively equipped with the first relief valve PR1 and the second relief valve PR2 toppling over to be respectively equipped with on first spill pipe 12 and second spill pipe, 13, the first spill pipes 12 and second spill pipe 13 between oil supply loop and the total spill pipe 11.Under scrape and be provided with the 3rd spill pipe 14, the three spill pipes 14 between oil supply loop and the total spill pipe 11 and be provided with the 3rd relief valve PR3.Between straight-through oil pipe 9 and main oil pipe 8, be provided with the 4th spill pipe 15, the four spill pipes 15 and be provided with the 4th relief valve PR6.Under scrape oil supply loop and on scrape and also be provided with the 5th spill pipe 16, the five spill pipes 16 between the oil supply loop and be provided with the 5th relief valve PR4 and bi-bit bi-pass solenoid directional control valve SOL6.Be provided with adjustable restrictive valve on the oil supply loop, may command tilting device movement velocity toppling over.
The present embodiment compression garbage truck hydraulic system comprises automatic locking oil cylinder 18; Second oil inlet P 2, the 3rd filler opening O2 and the second oil outlet A2, the 3rd oil outlet B2 of three six three-way electromagnetic valve SOL2 metas is communicated with by oil pipe with automatic locking oil cylinder 18 respectively and forms the automatic locking oil supply loop, and automatic locking oil supply loop and lifting oil supply loop are connected in parallel to each other.
When the compression garbage truck hydraulic system of present embodiment is worked, show as Fig. 2, when driving upper scraping plate, 5 actions of upper scraping plate oil cylinder begin in the compartment, to scrape rubbish fashionable, discharge the leaf fat cylinder 7 motionless discharge plates that make and be in a transfixion position earlier, rubbish is compressed between discharge plate and upper scraping plate, unloading valve 10 on this moment straight-through oil pipe 9 cuts out, on scrape oil supply loop and discharge between the oil supply loop and disconnect.Along with upper scraping plate and discharge between the plate distance and constantly dwindle, the suffered resistance of upper scraping plate is increasing, and this resistance that constantly increases causes to be scraped the oil supply loop internal pressure and increase.When oil pressure is increased to certain value, open forcing the unloading valve 10 of straight-through oil pipe 9, on scrape oil supply loop and discharge the oil supply loop conducting, on a part of pressure of scraping in the oil supply loop will pass to the discharge oil supply loop, cause and discharge the rising of oil supply loop pressure, in the compartment, move thereby promotion discharge plate leaves former position of rest; Upper scraping plate falls after rise and continues to scrape into rubbish and compressed garbage next time then.Work so repeatedly.
In addition to the implementation, the present invention can also have other mode of executions.Such as, 1) three six three-way electromagnetic valve SOL1, SOL2, SOL3, SOL4 and SOL5 also can substitute with manually operated valve or hydraulic operated valve; 2) automatic locking oil cylinder 18 and automatic locking oil supply loop can save; Or the like.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (6)
1. compression garbage truck hydraulic system, comprise cylinder system, multiple directional control valve, oil pump and fuel tank, described cylinder system mainly contains tilting device oil cylinder, crammer hoist cylinder, upper scraping plate oil cylinder, lower scraping plate oil cylinder and discharges the leaf fat cylinder, and it is characterized in that: described multiple directional control valve is made up of five groups of three six-way valves; Described five groups of three six-way valves first filler opening of meta and first oil outlet conducting are separately often opened and are one another in series in main oil pipe, its separately second filler opening, the 3rd filler opening and second oil outlet, the 3rd oil outlet of meta be communicated with by oil pipe with described each oil cylinder respectively and form respectively topple over oil supply loop, lifting oil supply loop, on scrape oil supply loop, scrape oil supply loop and discharge oil supply loop down; One end of described main oil pipe is communicated with the outlet of oil pump, and the other end is communicated with fuel tank; Scrape oil supply loop on described and discharge the straight-through oil pipe that is provided with between the oil supply loop two circuit communication, on the described straight-through oil pipe unloading valve is housed.
2. according to the described compression garbage truck hydraulic system of claim 1, it is characterized in that: described five groups of three six-way valves are respectively the one or three six three-way electromagnetic valve, the two or three six three-way electromagnetic valves, the three or three six three-way electromagnetic valves, the four or three six three-way electromagnetic valves and the five or three six three-way electromagnetic valve.
3. according to the described compression garbage truck hydraulic system of claim 2, it is characterized in that: also comprise the automatic locking oil cylinder, second filler opening of described the two or three six three-way electromagnetic valve meta, the 3rd filler opening and second oil outlet, the 3rd oil outlet are communicated with by oil pipe with the automatic locking oil cylinder respectively and form the automatic locking oil supply loop.
4. according to the described compression garbage truck hydraulic system of claim 3, it is characterized in that: described toppling over oil supply loop and always being respectively equipped with first spill pipe and second spill pipe between the spill pipe, be respectively equipped with first relief valve and second relief valve on described first spill pipe and second spill pipe; Scrape under described between oil supply loop and the total spill pipe and be provided with the 3rd spill pipe, described the 3rd spill pipe is provided with the 3rd relief valve; Be provided with the 4th spill pipe between described straight-through oil pipe and the main oil pipe, described the 4th spill pipe is provided with the 4th relief valve; Scrape under described oil supply loop and on scrape and also be provided with the 5th spill pipe between the oil supply loop, described the 5th spill pipe is provided with the 5th relief valve and bi-bit bi-pass solenoid directional control valve.
5. according to the described compression garbage truck hydraulic system of claim 4, it is characterized in that: scrape on described pressure switch is housed on the oil supply loop, describedly topple over oil supply loop and be provided with adjustable restrictive valve.
6. arbitrary described compression garbage truck hydraulic system that is used for claim 1-5, it is characterized in that: be parallel with total spill pipe on the described main oil pipe, described total spill pipe is provided with main relief valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810020078A CN101545502A (en) | 2008-03-28 | 2008-03-28 | Compression garbage truck hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810020078A CN101545502A (en) | 2008-03-28 | 2008-03-28 | Compression garbage truck hydraulic system |
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| CN101545502A true CN101545502A (en) | 2009-09-30 |
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| CN200810020078A Pending CN101545502A (en) | 2008-03-28 | 2008-03-28 | Compression garbage truck hydraulic system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152934A (en) * | 2011-02-25 | 2011-08-17 | 俞成良 | Hydraulic system of garbage truck |
| 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 |
| 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 |
| CN109139589A (en) * | 2018-09-22 | 2019-01-04 | 江苏悦达专用车有限公司 | A kind of fast kinetic control system of segmentation point |
| CN110259770A (en) * | 2019-06-03 | 2019-09-20 | 长沙中联重科环境产业有限公司 | Compression type garbage truck pressure fills out system and noise control method |
| CN113027849A (en) * | 2021-01-27 | 2021-06-25 | 长沙中联重科环境产业有限公司 | Discharging hydraulic system of compression type garbage truck, control method of discharging hydraulic system and compression type garbage truck |
-
2008
- 2008-03-28 CN CN200810020078A patent/CN101545502A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152934A (en) * | 2011-02-25 | 2011-08-17 | 俞成良 | Hydraulic system of garbage truck |
| 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 |
| 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 |
| CN109139589A (en) * | 2018-09-22 | 2019-01-04 | 江苏悦达专用车有限公司 | A kind of fast kinetic control system of segmentation point |
| CN109139589B (en) * | 2018-09-22 | 2020-08-04 | 江苏悦达专用车有限公司 | Sectional speed-division motion control system |
| CN110259770A (en) * | 2019-06-03 | 2019-09-20 | 长沙中联重科环境产业有限公司 | Compression type garbage truck pressure fills out system and noise control method |
| CN113027849A (en) * | 2021-01-27 | 2021-06-25 | 长沙中联重科环境产业有限公司 | Discharging hydraulic system of compression type garbage truck, control method of discharging hydraulic system and compression type garbage truck |
| CN113027849B (en) * | 2021-01-27 | 2023-10-03 | 长沙中联重科环境产业有限公司 | Compression type garbage truck discharging hydraulic system, control method thereof and compression type garbage truck |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20090930 |