CN104675769B - Four-stage speed-regulating hydraulic control circuit of organic fertilizer turning machine - Google Patents
Four-stage speed-regulating hydraulic control circuit of organic fertilizer turning machine Download PDFInfo
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- CN104675769B CN104675769B CN201510107932.0A CN201510107932A CN104675769B CN 104675769 B CN104675769 B CN 104675769B CN 201510107932 A CN201510107932 A CN 201510107932A CN 104675769 B CN104675769 B CN 104675769B
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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
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
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- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention relates to a four-stage speed-regulating hydraulic control circuit of an organic fertilizer turning machine, which belongs to the technical field of agricultural machinery hydraulic control. The circuit comprises a two-position and three-way flow reversing valve, a left hydraulic motor, a right hydraulic motor and a two-position and four-way switching valve, wherein a hydraulic pump is connected to the inlet end of the two-position and three-way flow reversing valve, the left hydraulic motor and the right hydraulic motor are respectively communicated with left and right two-position and four-way reversing valves, and an outlet of the two-position and three-way flow reversing valve enters an oil supply way respectively through a straight oil way and a throttle valve which are connected in parallel; when the two-position and four-way switching valve is in a first position, one branch way of the oil supply way passes through one of the left hydraulic motor and the right hydraulic motor and then returns to an oil pool through the two-position and four-way switching valve, and the other branch way of the oil supply way passes through the other of the left hydraulic motor and the right hydraulic motor and then returns to the oil pool through the corresponding two-position and four-way reversing valve; when the two-position and four-way switching valve is in a second position, the oil supply way passes through one of the left hydraulic motor and the right hydraulic motor and then passes through the two-position and four-way switching valve to return to the oil pool through the other of the left hydraulic motor and the right hydraulic motor through the corresponding two-position and four-way reversing valve. By adopting the four-stage speed-regulating hydraulic control circuit, four kinds of required speed switching control can be intelligently obtained.
Description
Technical field
The present invention relates to a kind of speed-regulating hydraulic control loop, especially a kind of level Four speed governing suitable for fertilizer turner
Hydraulic control circuit, belongs to agricultural machinery technical field of hydraulic.
Background technology
Need to carry out fertile heap during organic fertilizer production it is multiple turn over polishing working, when throwing is turned over, compost is crushed, stir
It is again in heaps after mixing, so as to adjust oxygen content inside fertile heap, temperature and moisture, to reach suitable technological condition for fermentation.According to
Applicant understands, and the fertilizer turner speed of travel is controlled except being carried out using expensive hydraulic variable displacement pump and variable displacement motor
Outside infinitely variable speeds, step speed regulation mainly has two classes：One class is to carry out mechanical speed change by gear using change speed gear box, and its structure is multiple
Miscellaneous, maintenance difficult, operation difficulty are big；Another kind of is to control switching straight-through and choke valve runner in parallel by reversal valve, so as to
The hydraulic control circuit of two kinds of speed switchings is realized by changes in flow rate.
Due to fertilizer, to throw resistance in the density in different fermentations period, viscosity, material stack height and turning over different, in order to preferably
Carry out ferment control, it is desirable to which turner has more speed, such that it is able to the different speeds of travel be adopted in the different fermentations phase
Carry out turning over polishing working.
The content of the invention
The present invention primary and foremost purpose be：By to the existing improvement for having grade hydraulic control circuit, proposing a kind of fertilizer
Turner level Four speed-regulating hydraulic control loop, can individually turn to so as to meet both sides vehicle, control four kinds of speed and preferably enter
Row turns over the demand of polishing working, and the loop should oil circuit be simple, regulate and control convenient.
Applicant recognizes that through carefully analyzing research fertilizer turner not only needs various speeds of travel, Er Qiexu
The manipulation as the center of circle turn-taked, therefore left and right car are realized with single wheel as the center of circle and with left and right wheelses symmetrical centre respectively
Wheel needs individually more to be controlled.
Therefore further aim of the present invention is：Propose a kind of not only achievable with left and right wheelses symmetrical centre as the center of circle
Turn-take, moreover it is possible to the level Four speed-regulating hydraulic control loop that realization is turn-taked with single wheel as the center of circle.
In order to reach above primary and foremost purpose, the level Four speed-regulating hydraulic control loop basic technical scheme of the present invention is：Including
Enter to terminate hydraulic pump（12）Two-position three way flow diverter valve（9）And respectively with left and right two-position four way change valve（3、5）Connection
Left and right hydraulic motor（1、2）, the two-position three way flow diverter valve（9）Outlet straight-through oil circuit respectively in parallel and
Choke valve（8）Into oil feeding line, it is characterised in that：Also contain two-position four-way switching valve（7）, when the two-position four-way switching valve
（7）In first position when, the oil feeding line separates the corresponding two-position four way change valve of a route by left and right hydraulic motor
One of after Jing two-position four-way switching valves（7）Oil sump is returned, and separates another road Jing two-position four-way switching valves（7）Afterwards by corresponding two
Position and four-way reversing valve is by another rear return oil sump of left and right hydraulic motor；When the two-position four-way switching valve（7）In second
When putting, the oil feeding line is passed through after one of left and right hydraulic motor by corresponding two-position four way change valve, the switching of Jing two-position four-ways
Valve（7）, then by corresponding two-position four way change valve by another return oil sump of left and right hydraulic motor.
So, the parallel connection in the outlet of original two-position three way flow diverter valve is led directly to and the basis of two velocity modulation controls is realized in throttling
On, and by two-position four-way switching valve, change its driving oil mass by controlling the series connection and parallel connection of left and right hydraulic motor, so as to
So that very cleverly oil circuit is improved, two grades of each two kinds of speed switching controls are realized, so as to the tetra- kinds of speed of 2x2 needed for obtaining are cut
Change control.
In order to reach further purpose, left and right two-position four way change valve of the present invention（3、5）It is respectively equipped with before
Left and right 3-position 4-way switching valve（4、6）；When 3-position 4-way switching valve is in first position, the oil circuit of both sides leads directly to；When three
When four-way switching valve is in the second position, the oil circuit blocking of both sides；When 3-position 4-way switching valve is in three positions, enter side
Oil communication and go out side oil circuit blocking.
Therefore, it can realize conventional speed governing, course changing control by the first position of 3-position 4-way switching valve；By three
The second position of four-way switching valve, realizes parking control；By the 3rd position of 3-position 4-way switching valve, make corresponding side wheel fixed
Position, realizes the control of turn-taking with the side wheel as the center of circle.
Further, the inlet side of the two-position three way flow diverter valve connects hydraulic pump by two-position three way pressure release reversal valve；When
When the two-position three way pressure release reversal valve is in first position, oil circuit leads directly to, when the two-position three way pressure release reversal valve is in the
During two positions, the pressure release bypass of relief valve in parallel is connected.
Description of the drawings
The present invention is further illustrated below in conjunction with the accompanying drawings.
Hydraulic control circuit schematic diagrams of the Fig. 1 for one embodiment of the invention.
In figure：Left hydraulic motor 1, right hydraulic motor 2, the second from left position and four-way reversing valve 3, left 3-position 4-way switching valve 4, the right side two
Position and four-way reversing valve 5, right 3-position 4-way switching valve 6, two-position four way change valve 7, choke valve 8, two-position three way flow diverter valve 9,
Two-position three way release reversal valve 10, relief valve 11, hydraulic pump 12, fuel tank 13.
Specific embodiment
Embodiment one
The fertilizer turner level Four speed-regulating hydraulic control loop of the present embodiment as shown in figure 1,13 one end of oil sump have into
End connects the two-position three way flow diverter valve 9 of hydraulic pump 12 by two-position three way pressure release reversal valve 10, and the two-position three way pressure release commutates
When valve 10 is in first position, realize that oil circuit leads directly to, when two-position three way pressure release reversal valve 10 is in the second position, connect in parallel
The pressure release bypass of relief valve 11, to realize parking.Actuating station have connect with left and right two-position four way change valve 3,5 respectively a left side,
Right hydraulic motor 1,2.Left and right 3-position 4-way switching valve 4,6 is respectively equipped with before left and right two-position four way change valve 3,5.
The two-position four-way switching valve 7 being arranged in oil circuit has the function of realizing second level speed change, and is arranged on left and right two
Left and right 3-position 4-way switching valve before position and four-way reversing valve 3,54,6 is mainly used in realizing turning with single wheel as the center of circle
Circle control and reliable parking.
Specifically, when two-position four-way switching valve 7 is in first position, oil feeding line separates a route corresponding left three
Position four-way switching valve 4, the second from left position and four-way reversing valve 3, after left hydraulic motor 1, Jing two-position four-ways switching valve 7 returns oil sump,
Another road is separated simultaneously Jing after two-position four-way switching valve 7 by corresponding right 3-position 4-way switching valve 6, right two-position four way change valve 5,
By oil sump being returned after right hydraulic motor 3, realize point oily parallel drive of left and right hydraulic motor 1,2.And work as two-position four-way and cut
Change valve 7 in the second position when, oil feeding line is passed through by corresponding left 3-position 4-way switching valve 4, the second from left position and four-way reversing valve 3
After left hydraulic motor 1, Jing two-position four-ways switching valve 7, then by corresponding right 3-position 4-way switching valve 6, two-position four way change valve 5,
Oil sump is returned by right hydraulic motor 2, the common oily tandem drive of left and right hydraulic motor 1,2 is realized.
During manipulation, switching is led directly to and is throttled in the parallel connection by the outlet of original two-position three way flow diverter valve 9, it is possible to achieve the
Two velocity modulation controls of one-level.On this basis, then by two-position four-way switching valve 7, by the series connection and parallel connection of left and right hydraulic motor
Switching changes driving oil mass, realizes two velocity modulation controls of the second level, as a result, two grades of each two kinds of speed switching controls combine, you can
Obtain the convenient four kinds of speed switching controls of manipulation.
In the process, left and right 3-position 4-way switching valve 4,6 respective three positions can realize the oil circuit of both sides respectively
The oil circuit blocking of straight-through, both sides, and enter the oil communication of side and go out the oil circuit blocking of side, meet respectively speed change, parking and
Control of turn-taking with single wheel as the center of circle.
It is summed up, the fertilizer turner level Four speed-regulating hydraulic control loop of the present embodiment can conveniently realize following
Many major functions：
1）The two-position four way change valve 7 of two-position three way flow diverter valve 9 and the second level by the first order, realizes hydraulic pressure horse
Up to 1,2 four kinds of rotating speed switching controls；
2）The centre position of oil circuit is blocked by two-position three way release reversal valve 10 and left and right 3-position 4-way switching valve 4,6,
Realize reliable and stable parking control；
3）By not switching in the same direction for left and right two-position four way change valve 3,5, realize with left and right wheelses symmetrical centre as the center of circle
Control of turn-taking；
4）By one of left and right 3-position 4-way switching valve 4,6 in first position, it is another be in the 3rd position, realize with
Turn-take control of the single wheel for the center of circle.
Test shows that the present embodiment is economical and practical, and with enough functions, manipulation is convenient, can make miniaturization fertilizer
Turner preferably completes the fermentation operation of fertilizer.
In addition to the implementation, the present invention can also have other embodiment.All employing equivalents or equivalent transformation shape
Into technical scheme, all fall within the protection domain of application claims.
Claims (3)
1. a kind of fertilizer turner level Four speed-regulating hydraulic control loop, including the two-position three way flow for entering termination hydraulic pump (12)
Reversal valve (9) and the left and right hydraulic motor (1,2) for connecting with left and right two-position four way change valve (3,5) respectively, described two
The straight-through oil circuit for exporting respectively in parallel of three-way flowrate reversal valve (9) and choke valve (8) enter oil feeding line, and its feature exists
In：Also contain two-position four-way switching valve (7), when the two-position four-way switching valve (7) is in first position, the oil feeding line
Separate the corresponding two-position four way change valve of a route to return by Jing two-position four-way switching valves (7) after one of left and right hydraulic motor
Oil sump, and separate another road Jing after two-position four-way switching valve (7) by corresponding two-position four way change valve pass through left and right hydraulic motor
In another after return oil sump；When the two-position four-way switching valve (7) is in the second position, the oil feeding line is by phase
After the two-position four way change valve answered is by one of left and right hydraulic motor, Jing two-position four-way switching valves (7), then by corresponding two
Four-way change-over valve is by another return oil sump in left and right hydraulic motor.
2. fertilizer turner level Four speed-regulating hydraulic control loop according to claim 1, it is characterised in that：The left side,
Left and right 3-position 4-way switching valve (4,6) is respectively equipped with before right two-position four way change valve (3,5)；At 3-position 4-way switching valve
When first position, the oil circuit of both sides leads directly to；When 3-position 4-way switching valve is in the second position, the oil circuit blocking of both sides；When
3-position 4-way switching valve be in three positions when, the oil communication for entering side and go out side oil circuit blocking.
3. fertilizer turner level Four speed-regulating hydraulic control loop according to claim 2, it is characterised in that：Described two
The inlet side of three-way flowrate reversal valve connects hydraulic pump by two-position three way pressure release reversal valve；At the two-position three way pressure release reversal valve
When first position, oil circuit leads directly to, and when the two-position three way pressure release reversal valve is in the second position, connects relief valve in parallel
Pressure release is bypassed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510107932.0A CN104675769B (en) | 2015-03-11 | 2015-03-11 | Four-stage speed-regulating hydraulic control circuit of organic fertilizer turning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510107932.0A CN104675769B (en) | 2015-03-11 | 2015-03-11 | Four-stage speed-regulating hydraulic control circuit of organic fertilizer turning machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104675769A CN104675769A (en) | 2015-06-03 |
| CN104675769B true CN104675769B (en) | 2017-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510107932.0A Active CN104675769B (en) | 2015-03-11 | 2015-03-11 | Four-stage speed-regulating hydraulic control circuit of organic fertilizer turning machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114382937B (en) * | 2021-11-29 | 2024-05-28 | 武汉船用机械有限责任公司 | Hydraulic control device of electrohydraulic ball valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002081540A (en) * | 2000-09-08 | 2002-03-22 | Hitachi Constr Mach Co Ltd | Speed control device for wheel type hydraulic traveling vehicle |
| CN201771496U (en) * | 2010-09-03 | 2011-03-23 | 安徽理工大学 | Hydraulic tracting system for shearer driven by load sensitive pump |
| CN203430885U (en) * | 2013-07-22 | 2014-02-12 | 四川泛水基电液机械有限责任公司 | Low-energy-consumption hydraulic open type traveling system |
| CN103849751A (en) * | 2012-11-30 | 2014-06-11 | 无锡市协新气动有限公司 | Crankshaft induction quenching machine tool hydraulic system |
| CN204533006U (en) * | 2015-03-11 | 2015-08-05 | 农业部南京农业机械化研究所 | Fertilizer turner level Four speed-regulating hydraulic control loop |
-
2015
- 2015-03-11 CN CN201510107932.0A patent/CN104675769B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002081540A (en) * | 2000-09-08 | 2002-03-22 | Hitachi Constr Mach Co Ltd | Speed control device for wheel type hydraulic traveling vehicle |
| CN201771496U (en) * | 2010-09-03 | 2011-03-23 | 安徽理工大学 | Hydraulic tracting system for shearer driven by load sensitive pump |
| CN103849751A (en) * | 2012-11-30 | 2014-06-11 | 无锡市协新气动有限公司 | Crankshaft induction quenching machine tool hydraulic system |
| CN203430885U (en) * | 2013-07-22 | 2014-02-12 | 四川泛水基电液机械有限责任公司 | Low-energy-consumption hydraulic open type traveling system |
| CN204533006U (en) * | 2015-03-11 | 2015-08-05 | 农业部南京农业机械化研究所 | Fertilizer turner level Four speed-regulating hydraulic control loop |
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| CN104675769A (en) | 2015-06-03 |
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