CN103046607A - Engineering machine, rapid oil return control system and rapid oil return control method - Google Patents
Engineering machine, rapid oil return control system and rapid oil return control method Download PDFInfo
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- CN103046607A CN103046607A CN2012105698133A CN201210569813A CN103046607A CN 103046607 A CN103046607 A CN 103046607A CN 2012105698133 A CN2012105698133 A CN 2012105698133A CN 201210569813 A CN201210569813 A CN 201210569813A CN 103046607 A CN103046607 A CN 103046607A
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- oil
- oil return
- valve
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- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses an engineering machine, a rapid oil return control system and a rapid oil return control method. The rapid oil return control system comprises a main valve, an actuating element, a rapid oil return valve, an oil tank and a pump, two working oil ports of the actuating element are connected with two working oil ports of the main valve respectively through a first oil passage and a second oil passage, the main valve is connected with the pump, a fourth oil passage is arranged on the oil tank and the second oil passage, and the rapid oil return valve is arranged on the fourth oil passage. Therefore, part of hydraulic oil of a bucket arm cylinder is led out to the outside of the main valve to return to the oil tank directly, loss due to the face that the hydraulic oil passes the inside of the main valve can be reduced, and further energy consumption is reduced. Besides, the rapid oil return control system is simple in structure and convenient to mount.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of engineering machinery, quick oil return control system and method.
Background technology
In the excavator course of work, its bucket arm cylinder recirculating oil quantity is larger, and hydraulic oil is through main valve internal oil passages fuel tank, and produce power loss when circulating in main valve has increased the heat energy generation of system, and the whole energy consumption of excavator is increased.
As seen, present this circuit not only produces a large amount of heat energy, makes system capacity consumption large, and, because the oil return resistance is large, cause the system pressure loss large.
Summary of the invention
In view of this, the present invention proposes a kind of engineering machinery, quick oil return control system and method, directly is back to fuel tank by bucket arm cylinder part hydraulic oil is drawn the main valve outside, reduces because the loss of hydraulic oil process main valve inside.
For achieving the above object, technical scheme of the present invention is achieved in that
On the one hand, the invention provides a kind of quick oil return control system, described quick oil return control system comprises: main valve, executive component, rapid oil return valve, fuel tank and pump; Two actuator ports of described executive component are connected with two actuator ports of described main valve by the first oil circuit, the second oil circuit respectively, and described main valve is connected with described pump; Be provided with the 4th oil circuit on described fuel tank and described the second oil circuit, be provided with rapid oil return valve on described the 4th oil circuit.
Further, in the said system, described rapid oil return valve is: flow control valve or reversal valve.
Further, in the said system, described executive component is oil cylinder, and described oil cylinder comprises rod chamber and rodless cavity.
Further, in the said system, described rapid oil return valve is pilot operated valve device, and described main valve is pilot operated valve device.
Further, in the said system, the oil-feed of described rod chamber control guide and described main valve and the control guide who is arranged on the rapid oil return valve on described the second oil circuit are connected.
According to a further aspect in the invention, propose a kind of quick method for controlling oil return, the method comprises: between the oil return circuit of fuel tank and oil cylinder, offer quick oil return circuit; On described quick oil return circuit, rapid oil return valve is set, make oil in the described oil cylinder chamber through the main valve on the described oil return circuit and the rapid oil return valve on the described quick oil return circuit, be back to fuel tank.
Further, in the said method, the rod chamber oil-feed control guide who arranges on the described main valve is connected to the control guide of described rapid oil return valve, controls described rapid oil return valve.
According to another aspect of the invention, propose a kind of engineering machinery, described engineering machinery is provided with above-mentioned any quick oil return control system.
Wherein, described engineering machinery is excavator.
With respect to prior art, the present invention has following advantage:
Quick oil return control system of the present invention and method directly are back to fuel tank by bucket arm cylinder part hydraulic oil is drawn the main valve outside, can reduce owing to the loss of hydraulic oil through main valve inside, thereby reduce energy consumption.
And quick oil return control system simple structure of the present invention is convenient to install.
Description of drawings
The accompanying drawing that consists of a part of the present invention is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of the quick oil return control system of the present invention embodiment.
Description of reference numerals
1 main valve
The oil-feed control guide of 11 rod chambers
The oil-feed control guide of 12 rodless cavities
2 oil cylinders
21 dippers
3 rapid oil return valves
4 fuel tanks
L1 the first oil circuit
L2 the second oil circuit
L3 the 3rd oil circuit
L4 the 4th oil circuit
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment among the present invention can make up mutually.
Basic thought of the present invention is: design a kind of quick oil return control system and method, at the outside rapid oil return valve that increases of main valve, bucket arm cylinder part hydraulic oil is drawn the outside directly fuel tank of main valve.
Below in conjunction with accompanying drawing, each preferred embodiment of the present invention is described further:
With reference to Fig. 1, it illustrates the structure of the quick oil return control system embodiment of present embodiment proposition, and described quick oil return control system comprises: main valve 1, executive component, rapid oil return valve 3, fuel tank 4, pump.
Wherein, two actuator ports of described executive component are connected with two actuator ports of described main valve 1 by the first oil circuit L1, the second oil circuit L2 respectively, described main valve 1 is connected with described fuel tank 4 by the 3rd oil circuit L3, the 3rd oil circuit L3 is used for oil return, main valve 1 is revealed oily oil sump tank in the valve when meta.Between described fuel tank 4 and described the second oil circuit L2, the 4th oil circuit L4 is set.Be provided with rapid oil return valve 3 on described the 4th oil circuit L4.
Need to prove that in the present embodiment, described executive component can be oil cylinder 2, such as bucket arm cylinder.
In above-described embodiment, described rapid oil return valve 3 is: flow control valve or reversal valve.
In above-described embodiment, described executive component is oil cylinder 2, and described oil cylinder 2 comprises rod chamber and rodless cavity.
Preferably, in above-described embodiment, described rapid oil return valve 3 is pilot operated valve device, and described main valve 1 is pilot operated valve device.
The oil-feed control guide 11 of described rod chamber is connected in described main valve 1 one ends.Guide 12 is controlled in the oil-feed of described rodless cavity, is connected in the other end of described main valve 1.
In above-described embodiment, the oil-feed of described rod chamber control guide 11 and described main valve 1 and the control guide who is arranged on the rapid oil return valve 3 on described the second oil circuit L2 are connected.At the second oil circuit L2 quick oil return line purpose being set is to improve the discharge rate of dipper 21 and reduce the pressure loss.
Alternatively, between described fuel tank 4 and described the first oil circuit L1, the 4th oil circuit L4 is set; Be provided with rapid oil return valve 3 on described the 4th oil circuit L4.The oil-feed of described rodless cavity control guide 11 and described main valve 1 and the control guide who is arranged on the rapid oil return valve 3 on described the first oil circuit L1 are connected.
Need to prove that in above-described embodiment, described rapid oil return valve 3 can be: in electromagnetic valve, pilot operated valve device, the mechanically controlled valve any.
When described rapid oil return valve 3 was electromagnetic valve, it adopted automatically controlled control mode, comes the size of electromagnetic valve for adjusting opening by size of current.
Therefore, present embodiment directly is back to fuel tank by bucket arm cylinder part hydraulic oil is drawn the main valve outside, can reduce owing to the loss of hydraulic oil through main valve inside, thereby reduce energy consumption.And the quick oil return control system simple structure of present embodiment is convenient to install.
Described above is, quick oil return control system embodiment of the present invention, the below is described further the quick method for controlling oil return that the present invention proposes, and this quick method for controlling oil return comprises:
S101: on the oil return circuit of oil cylinder, offer quick oil return circuit;
S102: on described quick oil return circuit, rapid oil return valve is set, makes oil in the described oil cylinder chamber through the main valve on the described oil return circuit and the rapid oil return valve on the described quick oil return circuit, be back to fuel tank.
Like this, when oil cylinder 2 rod chamber oil-feed, the rodless cavity oil return under this state, is connected to rapid oil return valve 3 control guides with rod chamber oil-feed control guide, makes oil cylinder 2 rodless cavities oil be back to simultaneously fuel tank 4 through main valve 1 and rapid oil return valve 3 two parts.
Need to prove that the described oil cylinder 2 of present embodiment can be bucket arm cylinder.
In above-described embodiment, the rod chamber oil-feed control guide who arranges on the described main valve is connected to the control guide of described rapid oil return valve, controls described rapid oil return valve.
In above-described embodiment, described rapid oil return valve 3 can be: electromagnetic valve or pilot operated valve device or mechanically controlled valve.
Therefore, present embodiment directly is back to fuel tank by bucket arm cylinder part hydraulic oil is drawn the main valve outside, can reduce owing to the loss of hydraulic oil through main valve inside, thereby reduce energy consumption.And the quick oil return control system simple structure of present embodiment is convenient to install.
The embodiment of the invention also provides a kind of engineering machinery, excavator for example, this project machinery is provided with above-mentioned any quick oil return control system, because above-mentioned any quick oil return control system has above-mentioned technique effect, therefore, the engineering machinery that is provided with this quick oil return control system also should possess corresponding technique effect, and its specific implementation process is similar to the above embodiments, does not hereby give unnecessary details.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a quick oil return control system is characterized in that, comprising: main valve (1), executive component, rapid oil return valve (3), fuel tank (4) and pump;
Two actuator ports of described executive component are connected with two actuator ports of described main valve (1) by the first oil circuit (L1), the second oil circuit (L2) respectively, and described main valve (1) is connected with described pump;
Be provided with the 4th oil circuit (L4) on described fuel tank (4) and described the second oil circuit (L2), be provided with rapid oil return valve (3) on described the 4th oil circuit (L4).
2. quick oil return control system according to claim 1 is characterized in that, described rapid oil return valve (3) is: flow control valve or reversal valve.
3. quick oil return control system according to claim 1 and 2 is characterized in that, described executive component is oil cylinder (2), and described oil cylinder (2) comprises rod chamber and rodless cavity.
4. quick oil return control system according to claim 3 is characterized in that, described rapid oil return valve (3) is pilot operated valve device, and described main valve (1) is pilot operated valve device.
5. quick oil return control system according to claim 4 is characterized in that, the oil-feed of described rod chamber control guide (11) and described main valve (1) and the control guide who is arranged on the rapid oil return valve (3) on described the second oil circuit (L2) are connected.
6. a quick method for controlling oil return is characterized in that, comprising:
Between the oil return circuit of fuel tank and oil cylinder, offer quick oil return circuit;
On described quick oil return circuit, rapid oil return valve is set, make oil in the described oil cylinder chamber through the main valve on the described oil return circuit and the rapid oil return valve on the described quick oil return circuit, be back to fuel tank.
7. quick method for controlling oil return according to claim 6 is characterized in that, the rod chamber oil-feed control guide who arranges on the described main valve is connected to the control guide of described rapid oil return valve, controls described rapid oil return valve.
8. an engineering machinery is characterized in that, described engineering machinery is provided with each described quick oil return control system of claim 1 to 5.
9. engineering machinery according to claim 8 is characterized in that, described engineering machinery is excavator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105698133A CN103046607A (en) | 2012-12-25 | 2012-12-25 | Engineering machine, rapid oil return control system and rapid oil return control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105698133A CN103046607A (en) | 2012-12-25 | 2012-12-25 | Engineering machine, rapid oil return control system and rapid oil return control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103046607A true CN103046607A (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012105698133A Pending CN103046607A (en) | 2012-12-25 | 2012-12-25 | Engineering machine, rapid oil return control system and rapid oil return control method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775469A (en) * | 2015-03-10 | 2015-07-15 | 淄博海伦机械制造有限公司 | Multifunctional crushing head |
| CN105178383A (en) * | 2015-10-19 | 2015-12-23 | 太原理工大学 | Motor-driven type independent steering system of loading machine |
| CN108843650A (en) * | 2018-08-26 | 2018-11-20 | 张惠丽 | A kind of hydraulic water vat quick acting mechanism helping just urine receiver automatically |
| CN110359516A (en) * | 2019-07-24 | 2019-10-22 | 青岛雷沃工程机械有限公司 | Descending movable arm of excavator hydraulic control system and excavator |
| CN111550467A (en) * | 2020-05-27 | 2020-08-18 | 上海华兴数字科技有限公司 | Hydraulic control loop and hydraulic control method |
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| JPH09151488A (en) * | 1995-11-22 | 1997-06-10 | Komatsu Ltd | Hydraulic circuit for hydraulic shovel |
| JPH1089317A (en) * | 1996-09-18 | 1998-04-07 | Sumitomo Constr Mach Co Ltd | Boom lowering reproduction circuit of hydraulic excavator |
| CN102383457A (en) * | 2011-08-30 | 2012-03-21 | 陈海波 | System for dynamically allocating saturation flow of hydraulic excavator |
| JP2012057409A (en) * | 2010-09-10 | 2012-03-22 | Hitachi Constr Mach Co Ltd | Work machine |
| CN102979769A (en) * | 2012-12-05 | 2013-03-20 | 中联重科股份有限公司 | Extension and retraction control loop with hydraulic cylinder |
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2012
- 2012-12-25 CN CN2012105698133A patent/CN103046607A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09151488A (en) * | 1995-11-22 | 1997-06-10 | Komatsu Ltd | Hydraulic circuit for hydraulic shovel |
| JPH1089317A (en) * | 1996-09-18 | 1998-04-07 | Sumitomo Constr Mach Co Ltd | Boom lowering reproduction circuit of hydraulic excavator |
| JP2012057409A (en) * | 2010-09-10 | 2012-03-22 | Hitachi Constr Mach Co Ltd | Work machine |
| CN102383457A (en) * | 2011-08-30 | 2012-03-21 | 陈海波 | System for dynamically allocating saturation flow of hydraulic excavator |
| CN102979769A (en) * | 2012-12-05 | 2013-03-20 | 中联重科股份有限公司 | Extension and retraction control loop with hydraulic cylinder |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775469A (en) * | 2015-03-10 | 2015-07-15 | 淄博海伦机械制造有限公司 | Multifunctional crushing head |
| CN105178383A (en) * | 2015-10-19 | 2015-12-23 | 太原理工大学 | Motor-driven type independent steering system of loading machine |
| CN105178383B (en) * | 2015-10-19 | 2017-08-29 | 太原理工大学 | Load electromechanical drive independent steering system |
| CN108843650A (en) * | 2018-08-26 | 2018-11-20 | 张惠丽 | A kind of hydraulic water vat quick acting mechanism helping just urine receiver automatically |
| CN110359516A (en) * | 2019-07-24 | 2019-10-22 | 青岛雷沃工程机械有限公司 | Descending movable arm of excavator hydraulic control system and excavator |
| CN111550467A (en) * | 2020-05-27 | 2020-08-18 | 上海华兴数字科技有限公司 | Hydraulic control loop and hydraulic control method |
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Application publication date: 20130417 |