CN105545844A - Hydraulic control system of energy-saving bulldozer working device - Google Patents
Hydraulic control system of energy-saving bulldozer working device Download PDFInfo
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- CN105545844A CN105545844A CN201610163510.XA CN201610163510A CN105545844A CN 105545844 A CN105545844 A CN 105545844A CN 201610163510 A CN201610163510 A CN 201610163510A CN 105545844 A CN105545844 A CN 105545844A
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- oil
- hydraulic cylinder
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- energy
- valve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/80—Component parts
- E02F3/84—Drives or control devices therefor, e.g. hydraulic drive systems
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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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Operation Control Of Excavators (AREA)
Abstract
The invention provides a hydraulic control system of an energy-saving bulldozer working device and belongs to the field of machinery. The hydraulic control system comprises an oil tank (12), a filter (10), a hydraulic pump (9), an overflow valve and the like and is characterized in that a first electromagnetic reversing valve (1) controls a two-position two-way valve (8) to store hydraulic energy from a rodless cavity of a scarifier hydraulic cylinder (13) to an energy accumulator (7), and the first electromagnetic reversing valve (1) controls a two-position two-way valve (9) to release energy in the energy accumulator (7) to meet work requirements. When a shovel piece lifting hydraulic cylinder (14) stretches outwards, hydraulic oil drives a power generator (5) to rotate through a turbine (4) to convert energy into electric energy to be stored in a storage battery, so that conversion and utilization of energy are achieved; a third electromagnetic valve (3) controls the stretching and contracting amount of an inclined stay bar hydraulic cylinder (15) to control the included angle between a bulldozing plate and the ground; the scarifier hydraulic cylinder (13), the shovel piece lifting hydraulic cylinder (14) and a shovel angle adjusting hydraulic cylinder (15) work stably in the whole bulldozing work.
Description
Technical field
The present invention relates to hydraulic pressure installation, refer more particularly to for hydraulic system of bulldozer, belong to mechanical field category.
Background technique
Hydraulic system of bulldozer mainly contains carrying vehicle, sprocket transmission device, ridge buster and mouldboard composition.Due to the hardness skewness on ground when soil-shifting work, for ground when preventing dozing is too hard and cause the normal operational difficulties of bulldozer, hydraulic system and transmission device overload is even directly caused to damage, need with ridge buster carry out work of loosening the soil or regulate the angle on mouldboard and ground, always improve operating mode.
Summary of the invention
The object of the present invention is to provide a kind of energy-saving bulldozer working device hydraulic control system, normal dozing can not only be carried out, the various energy recycled in working procedure can also be made full use of, especially the energy in ridge buster oil hydraulic cylinder and shovel piece lifting hydraulic cylinder telescopic process, and keep the stability of hydraulic pressure installation.
For achieving the above object, technological scheme of the present invention is as follows:
A kind of energy-saving bulldozer working device hydraulic control system, comprise: the first solenoid directional control valve (1), second solenoid directional control valve (2), 3rd solenoid directional control valve (3), turbine (4), generator (5), first two position two-way valve (6), accumulator (7), second two position two-way valve (8), oil hydraulic pump (9), filter (10), relief valve (11), fuel tank (12), ridge buster oil hydraulic cylinder (13), perching knife lifting hydraulic cylinder (14), shovel angle regulator solution cylinder pressure (15), first one-way valve (16), second one-way valve (17), relief valve (18).When described ridge buster oil hydraulic cylinder (13) is shunk, namely when loosening device entirety moves downward, hydraulic oil is pumped from fuel tank (12) rod chamber being transported to ridge buster oil hydraulic cylinder (13) by oil hydraulic pump (9), and the hydraulic oil in ridge buster oil hydraulic cylinder (13) rodless cavity is pressed into accumulation of energy in accumulator (7).When described ridge buster oil hydraulic cylinder (13) is overhanging, namely when loosening device entirety moves upward, hydraulic oil is pumped from fuel tank (12) rodless cavity being transported to ridge buster oil hydraulic cylinder (13) by oil hydraulic pump (9), hydraulic oil now in accumulator (7) also flows into the rodless cavity of ridge buster oil hydraulic cylinder (13), fault offset, enters fuel tank by relief valve (18) by hydraulic oil when accumulator (10) overpressure.When described shovel piece lifting hydraulic cylinder (14) is shunk, namely when mouldboard entirety moves downward, hydraulic oil is pumped from fuel tank (12) rodless cavity being sent to shovel piece telescopic hydraulic cylinder (14) by oil hydraulic pump (9), hydraulic oil in shovel piece lifting hydraulic cylinder (14) rod chamber flows through turbine (4) drive electrical generators (5) rotary electrification, thus completes the recovery trans-utilization of energy.Described ridge buster oil hydraulic cylinder (13) and shovel piece lifting hydraulic cylinder (14) stable operation in whole loosen the soil operation and dozing.
Advantage of the present invention:
1, have accumulator (7) and turbine (4) and generator (5) in this hydraulic system, the energy of the hydraulic oil in ridge buster oil hydraulic cylinder (13) and shovel piece lifting hydraulic cylinder (14) telescopic process in rod chamber and rodless cavity can be make use of fully.
2, auxiliary ridge buster oil hydraulic cylinder (13) piston movement of accumulator (7), makes oil hydraulic pump (9) be reduced in whole workload of loosening the soil in operation.
3, turbine (4) reclaims hydraulic oil drive electrical generators (5) generating in shovel piece oil hydraulic cylinder (14) rodless cavity, is stored in by electricity in storage battery and is used for other operation.
4, in a word, the present invention is the energy that a kind of energy-saving bulldozer working device hydraulic control system can make full use of dozing and the loosen the soil rodless cavity frequently in telescopic process of shovel piece lifting hydraulic cylinder (14) and the oil hydraulic cylinder that loosens the soil (13) in operation and the hydraulic oil be forced out in rod chamber have.Thus, this device really achieves energy-conservation effect.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of energy-saving bulldozer working device hydraulic control system device of the present invention.
Embodiment
1, the first solenoid directional control valve; 2, the second solenoid directional control valve; 3, the 3rd solenoid directional control valve; 4, turbine; 5, generator; 6, the first two position two-way valve; 7, accumulator; 8, the second two position two-way valve; 9, oil hydraulic pump; 10, filter; 11, relief valve; 12, fuel tank; 13, ridge buster oil hydraulic cylinder; 14, perching knife lifting hydraulic cylinder; 15, angle regulator solution cylinder pressure is shoveled; 16, the first one-way valve; 17, the second one-way valve; 18, relief valve.
Further illustrate below in conjunction with enforcement accompanying drawing.
As shown in Figure 1, the energy-saving bulldozer working device hydraulic control system of one of the present invention comprises: the first solenoid directional control valve 1, second solenoid directional control valve 2, the 3rd solenoid directional control valve 3, turbine 4, generator 5, first two position two-way valve 6, accumulator 7, second two position two-way valve 8, oil hydraulic pump 9, filter 10, relief valve 11, fuel tank 12, ridge buster oil hydraulic cylinder 13, perching knife lifting hydraulic cylinder 14, shovel angle regulator solution cylinder pressure 15, first one-way valve 16, second one-way valve 17.
The Placement of this enforcement is: fuel tank 12 oil outlet is connected to the oiler of oil hydraulic pump 9 through filter 10, the oil outlet of oil hydraulic pump 9 connects the 1G mouth of the first solenoid valve 1, 1F mouth, the 1A of the first solenoid valve 1, 1C mouth and 1B, 1D mouth is connected respectively to rod chamber and the rodless cavity of ridge buster oil hydraulic cylinder, first solenoid valve 1 left connection 1H mouth is connected to fuel tank, the rodless cavity of ridge buster oil hydraulic cylinder 13 is connected to one-way valve 16, one-way valve 16 is connected to the first two position two-way valve 6, first two position two-way valve 6 is connected to accumulator 7, accumulator 7 is being connected to the second two position two-way valve 8, then one-way valve 17 is being connected to and is finally being connected to the rodless cavity of ridge buster oil hydraulic cylinder 13, accumulator 10 is connected with relief valve 18, relief valve 18 is connected to fuel tank.Fuel tank 12 oil outlet is connected to the oiler of oil hydraulic pump 9 through filter 10, the oil outlet of oil hydraulic pump 9 connects 2I mouth, the 2G mouth of the second solenoid valve 2, the 2C mouth of the second solenoid valve 2,2F mouth be connected to shovel piece hoist cylinder 14 without bar cylinder, what the 2B mouth of the second solenoid valve 2,2E mouth were connected to shovel piece hoist cylinder 14 has bar cylinder, 2H mouth, the 2J mouth of the second solenoid valve 2 are connected to fuel tank, 2A mouth, the 2D mouth of the second solenoid valve 2 are connected to turbine 4, and turbine 4 has bar cylinder what be connected to shovel piece hoist cylinder 14.Fuel tank 12 oil outlet is connected to the oiler of oil hydraulic pump 9 through filter 10, the oil outlet of oil hydraulic pump 9 connects 3G mouth, the 3E mouth of the 3rd solenoid valve 3, the 3B mouth of the 3rd solenoid valve 3,3D mouth are connected to the rod chamber of hound oil hydraulic cylinder 15, the 3A mouth of the 3rd solenoid valve 3,3C mouth are connected to the rodless cavity of hound oil hydraulic cylinder 15, and 3F mouth, the 3G mouth of the 3rd solenoid valve 3 are connected to fuel tank.
When introducing a kind of energy-saving bulldozer working device hydraulic control system work below in conjunction with Fig. 1, the specific works situation of this hydraulic pressure installation:
When ridge buster oil hydraulic cylinder 13 shrinks, oil hydraulic pump 9 rotates hydraulic oil is pumped the oil inlet end arriving oil hydraulic pump 9 through filter 10 from fuel tank 12, hydraulic oil pumps rear arrival first solenoid valve 1 right connection 1F mouth and is connected to the rod chamber of ridge buster oil hydraulic cylinder 13 with 1C mouth, hydraulic oil in the rodless cavity of ridge buster oil hydraulic cylinder 13 is connected on one-way valve 16 and the first two position two-way valve 6, hydraulic oil is completed the storage of energy stored in accumulator 7, if when storage liquid oil pressure is too high, relief valve 18 is opened, hydraulic oil overflow oil sump tank, when ridge buster oil hydraulic cylinder 13 is overhanging, oil hydraulic pump 9 rotates hydraulic oil is pumped the oil inlet end arriving oil hydraulic pump 9 through filter 10 from fuel tank 12, hydraulic oil pumps rear arrival first solenoid valve 1, first solenoid valve 1 left connection 1G mouth and 1B mouth are connected to the rodless cavity of ridge buster oil hydraulic cylinder 13, the second two position two-way valve 8 now controlled by the first solenoid valve 1 is connected, the hydraulic oil be stored in accumulator 7 is connected to the rodless cavity of ridge buster oil hydraulic cylinder 13 successively through the second two position two-way valve 8 and one-way valve 17, 1A mouth is connected to ridge buster oil hydraulic cylinder 13 rod chamber, 1A mouth is connected with 1H mouth, 1H mouth is connected to fuel tank.
When shovel piece lifting hydraulic cylinder 14 is overhanging, oil hydraulic pump 9 rotates hydraulic oil is pumped the oil inlet end arriving oil hydraulic pump 9 through filter 10 from fuel tank 12, hydraulic oil pumps rear arrival second solenoid valve 2, second solenoid valve 2 right connection 2G mouth leads to 2F mouth makes hydraulic oil arrive the rodless cavity of shovel piece hoist cylinder 14, hydraulic oil in shovel piece hoist cylinder 14 rod chamber flows through turbine 4, and drive turbine 4 to rotate, then hydraulic oil flow back into the 2D mouth of the second solenoid valve 2, flow out from 2H mouth, flow into fuel tank; When shovel piece lifting hydraulic cylinder 14 shrinks, oil hydraulic pump 9 rotates hydraulic oil is pumped the oil inlet end arriving oil hydraulic pump 9 through filter 10 from fuel tank 12, hydraulic oil pumps rear arrival second solenoid valve 2, the left connection of second solenoid valve 2 connects 2I mouth, hydraulic oil flows out the rod chamber entering into shovel piece hoist cylinder 14 from 2B mouth, the hydraulic oil of shovel piece hoist cylinder 14 rodless cavity flows to the 2C mouth of the second solenoid valve 2, flows into fuel tank from 2J mouth.
When hound oil hydraulic cylinder 15 shrinks, oil hydraulic pump 9 rotates hydraulic oil is pumped the oil inlet end arriving oil hydraulic pump 9 through filter 10 from fuel tank 12, hydraulic oil pumps rear arrival the 3rd solenoid valve 3, the right connection of 3rd solenoid valve 3 connects 3E mouth, the rod chamber entering hound oil hydraulic cylinder 15 is flowed out from 3D mouth, the hydraulic oil of rodless cavity flows to the 3C mouth of the 3rd solenoid valve 3, finally flows out from 3F mouth and enters into fuel tank; When hound oil hydraulic cylinder 15 is overhanging, oil hydraulic pump 9 rotates hydraulic oil is pumped the oil inlet end arriving oil hydraulic pump 9 through filter 10 from fuel tank 12, hydraulic oil pumps rear arrival the 3rd solenoid valve 3,3rd solenoid valve 3 left side is switched to 3H mouth, the rodless cavity entering into hound oil hydraulic cylinder 15 is flowed out from 3A mouth, the hydraulic oil of rod chamber flows to the 3B mouth of the 3rd solenoid valve 3, flows back to fuel tank from 3G mouth.
Claims (6)
1. an energy-saving bulldozer working device hydraulic control system, comprise: the first solenoid directional control valve (1), second solenoid directional control valve (2), 3rd solenoid directional control valve (3), turbine (4), generator (5), first two position two-way valve (6), accumulator (7), second two position two-way valve (8), oil hydraulic pump (9), filter (10), relief valve (11), fuel tank (12), ridge buster oil hydraulic cylinder (13), perching knife lifting hydraulic cylinder (14), shovel angle regulator solution cylinder pressure (15), first one-way valve (16), second one-way valve (17), relief valve (18), it is characterized in that: when ridge buster oil hydraulic cylinder (13) shrinks, namely when loosening device entirety moves downward, hydraulic oil is pumped from fuel tank (12) rod chamber being transported to ridge buster oil hydraulic cylinder (13) by oil hydraulic pump (9), and the hydraulic oil in ridge buster oil hydraulic cylinder (13) rodless cavity is pressed into accumulation of energy in accumulator (7), when described ridge buster oil hydraulic cylinder (13) is overhanging, namely when loosening device entirety moves upward, hydraulic oil is pumped from fuel tank (12) rodless cavity being transported to ridge buster oil hydraulic cylinder (13) by oil hydraulic pump (9), hydraulic oil now in accumulator (7) also flows into the rodless cavity of ridge buster oil hydraulic cylinder (13), fault offset, enters fuel tank by relief valve (18) by hydraulic oil when accumulator (10) overpressure, when described shovel piece lifting hydraulic cylinder (14) is shunk, namely when mouldboard entirety moves downward, hydraulic oil is pumped from fuel tank (12) rodless cavity being sent to shovel piece telescopic hydraulic cylinder (14) by oil hydraulic pump (9), hydraulic oil in shovel piece lifting hydraulic cylinder (14) rod chamber flows through turbine (4) drive electrical generators (5) rotary electrification, thus completes the recovery trans-utilization of energy, described ridge buster oil hydraulic cylinder (13) and shovel piece lifting hydraulic cylinder (14) stable operation in whole loosen the soil operation and dozing.
2. the energy-saving bulldozer working device hydraulic control system of one according to claim 1, is characterized in that: comprise the first two position two-way valve (8), the second two position two-way valve (6) and accumulator (7) that the first solenoid valve (1) controls, the Collection and utilization of energy that the first one-way valve (16), the second one-way valve (17) have come.
3. the energy-saving bulldozer working device hydraulic control system of the one according to claim 1-2, it is characterized in that: the hydraulic oil when shovel piece lifting hydraulic cylinder (14) drives mouldboard to move downward in rod chamber flows through turbine (4) drive electrical generators (5) rotation and charges a battery, thus achieves the electrical power storage pressure energy of liquid being converted to storage battery.
4. the energy-saving bulldozer working device hydraulic control system of the one according to claim 1-3, is characterized in that: comprise the 3rd solenoid valve (3) hound oil hydraulic cylinder (15) and replace simple hound.
5. the energy-saving bulldozer working device hydraulic control system of the one according to claim 1-4, is characterized in that: two shovel piece lifting hydraulic cylinders (14) are carried out parallel connection make its flexible can realize synchronous.
6. the energy-saving bulldozer working device hydraulic control system of the one according to claim 1-5, it is characterized in that: comprise the second solenoid valve (2), the 3rd solenoid valve (3), shovel piece lifting hydraulic cylinder (14) hound oil hydraulic cylinder composition overall co-ordination in, put in the rod chamber and rodless cavity of shovel piece lifting hydraulic cylinder (14) separately establish spring with avoided arrival limit position time; Again regulate hound oil hydraulic cylinder (15) and produce the unequal power distribution of two in parallel shovel piece lifting hydraulic cylinders (14) series connection cavitys; Right position, the 6th two-position valve (46) is in right position, and the hydraulic oil in the second turning platform oil hydraulic cylinder (44) rod chamber gets back to fuel tank (1) through the second turning platform oil hydraulic cylinder solenoid valve (45) and the 6th two-position valve (46); Can also by ECU(49) identical control effects is applied to first and second dragline structure, realize both interlocks; When this energy conserving system is declined to two swing arm by increase by first accumulator (25), the second accumulator (31) and the first oil hydraulic motor (10), the second oil hydraulic motor (47), hydraulic energy stores thus supplies utilization and other consumers of generation electric energy supply flood control sacker self when swing arm rises and uses.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610163510.XA CN105545844B (en) | 2016-03-19 | 2016-03-19 | A kind of energy-saving bulldozer working device hydraulic control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610163510.XA CN105545844B (en) | 2016-03-19 | 2016-03-19 | A kind of energy-saving bulldozer working device hydraulic control system |
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| CN105545844A true CN105545844A (en) | 2016-05-04 |
| CN105545844B CN105545844B (en) | 2017-11-10 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108321711A (en) * | 2018-03-30 | 2018-07-24 | 徐州徐工随车起重机有限公司 | A kind of aerial lift device with insulated arm automatic charging system |
| CN108575124A (en) * | 2018-07-17 | 2018-09-28 | 潍坊科技学院 | A kind of control device of twin shaft Stratified soil cutting rotary cultivator |
| CN111877453A (en) * | 2020-08-31 | 2020-11-03 | 上海华兴数字科技有限公司 | Excavator power response characteristic improving system |
| CN113232719A (en) * | 2021-06-24 | 2021-08-10 | 上海三一重机股份有限公司 | Steering system and loader |
| RU2758163C1 (en) * | 2021-03-26 | 2021-10-26 | Федеральное государственное бюджетное образовательное учреждение высшего образования «Псковский государственный университет» | Dozer blade control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108321711A (en) * | 2018-03-30 | 2018-07-24 | 徐州徐工随车起重机有限公司 | A kind of aerial lift device with insulated arm automatic charging system |
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| RU2758163C1 (en) * | 2021-03-26 | 2021-10-26 | Федеральное государственное бюджетное образовательное учреждение высшего образования «Псковский государственный университет» | Dozer blade control system |
| CN113232719A (en) * | 2021-06-24 | 2021-08-10 | 上海三一重机股份有限公司 | Steering system and loader |
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