CN2878762Y - Energy-saving control loop for engineering mechanical hydraulic system - Google Patents
Energy-saving control loop for engineering mechanical hydraulic system Download PDFInfo
- Publication number
- CN2878762Y CN2878762Y CN 200520077485 CN200520077485U CN2878762Y CN 2878762 Y CN2878762 Y CN 2878762Y CN 200520077485 CN200520077485 CN 200520077485 CN 200520077485 U CN200520077485 U CN 200520077485U CN 2878762 Y CN2878762 Y CN 2878762Y
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- CN
- China
- Prior art keywords
- oil
- valve
- pipeline
- hydraulic
- fuel tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an energy-saving control loop of engineering machinery hydraulic system. It is characterized in that the export pipeline of a engine coolant is equipped with a thermostatic valve 2, which is connected between a ventilating window and a loop oil filter through the pipeline, and a valve block component, a manual rotary valve, an oil return filter and the ventilating window form different back pressure control loops; a thermostatic valve 1 is position in the fuel tank and is connected between the valve block component and a radiator with the pipeline. In the loop, only when the working media of the hydraulic system and the engine water temperature exceed the allowable values, the cooling channels are respectively opened, and the greatest degree of energy-saving will be enabled for the equipment.
Description
Technical field
The utility model relates to the engineering machinery hydraulic control system.
Background technique
Because it is little that hydraulic element possess volume, light weight is easy to arrange that pipeline is easy to connect, safeguards characteristic of simple that at present, hydraulic transmission technology is extensively adopted by various machinery.The cooling system of hydraulic oil, engine coolant (water) different control modes is seen everywhere.
Above-described cooling system mostly adopts electronic temperature transmitter control; Also have more original structure, as long as engine running, its cooling system is just started working, and causes " warming-up " (engine warming up) overlong time at cold area, and energy loss just can't be avoided, and causes great energy waste; Electronic temperature transmitter is because of special responsive to rainwater, and the careless slightly cooling mechanism that will cause can't be worked.
Summary of the invention
The purpose of this utility model provides a kind of easy to connect, reliable in action, guarantee the cooling system of hydraulic oil, engine coolant, only surpassing specified value in temperature just starts working, also play the shortening effect of " warming-up " time, the energy-saving control loop of hydraulic system that the energy waste problem is greatly improved at severe cold area.
The purpose of this utility model is achieved in that this oil hydraulic circuit is mainly by oil return oil purifier, motor, oil hydraulic pump, valve block assembly, manually component such as stopcock, relief valve, hydraulic pressure working connection, radiator, fuel tank and pipeline fittings are formed.Hydraulic oil from fuel tank can constitute high-pressure oil passage through oil hydraulic pump, valve block assembly, hydraulic pressure working connection; The hydraulic oil that returns from the hydraulic pressure working connection forms low tension loop through radiator, oil return oil purifier; It is characterized in that being equipped with in the engine coolant export pipeline thermostat valve two, thermostat valve two is connected between vent window and the loop oil purifier by pipeline, forms different back pressure control loops with valve block assembly, manual stopcock, oil return oil purifier, vent window; Thermostat valve one is housed in fuel tank, is connected between valve block assembly and the radiator with pipeline.
During installation, at first oil hydraulic pump, motor are fused and be fixed on the pedestal of machinery, again fuel tank, valve block assembly, radiator, relief valve, also be installed on the same pedestal, vent window is installed in the front end of engine cooling water tank; Second step was installed in oil return oil purifier, thermostat valve in the fuel tank, and guaranteed that thermostat valve is immersed in the hydraulic oil all the time, and manually stopcock is fixed on the operating table of machinery, and thermostat valve two is connected in the export pipeline of engine coolant; The 3rd step, finish the connection of pipeline between fuel tank, oil hydraulic pump, valve block assembly, hydraulic pressure working connection and the outlet of valve block assembly, thermostat valve, the radiator, finish the connection of pipeline between hydraulic pressure working connection, radiator, the oil return oil purifier simultaneously; Connect valve block assembly, the manual pipeline between the pipeline at the pipeline between stopcock, the oil return oil purifier and relief valve two ends and vent window, thermostat valve two, oil return oil purifier at last.
When equipment construction, at first connect manual stopcock, the pressure activated valve block assembly commutation that utilizes oil return oil purifier oil strain resistance to produce at this moment, is full of all high-pressure oil passages from the pressure oil liquid of oil hydraulic pump.When hydraulic oil, when engine coolant temperature is elevated to certain value, the thermostat valve and the thermostat valve two in the engine coolant output pipe that are installed in the fuel tank will be distinguished connection automatically, engine water tank, hydraulic oil radiator ventilation flue are opened, fan rotation in the radiator simultaneously, hydraulic oil and engine coolant obtain cooling respectively, keep the thermal equilibrium of machinery.
The utility model has the advantages that:, broken away from the too defect of " fragile " of electronic component in the control of the water tank and the hydraulic system radiator cooling mechanism of water cooling motor.Because selector valve, thermostat valve, valve block assembly and the connecting pipeline thereof of special setting are contained in this loop, to have only when the hydraulic work system medium, when the engine water temperature surpasses permitted value, its cooling channel is opened respectively, guarantees the machinery proper functioning.Realize that machinery is farthest energy-saving and cost-reducing.
Description of drawings
Be described further below in conjunction with drawings and Examples.
Fig. 1 is embodiment's schematic diagram of the present utility model.
Among the figure: 1, oil return oil purifier, 2, motor, 3, oil hydraulic pump, 4, manually operated valve, 5, the valve block assembly, 6, relief valve, 7, the hydraulic pressure working connection, 8, radiator, 9, thermostat valve one, 10, fuel tank, 11, thermostat valve two, 12, vent window
Embodiment
At first motor (2) oil hydraulic pump (3) is connected as a single entity and is fixed on the pedestal of machinery, manually stopcock (4) is fixed on the operating table of machinery, fuel tank (10), valve block assembly (5), radiator (8), relief valve (6) are also installed on the pedestal of machinery, vent window (12) is installed in the front end of motor (2) cooling water tank, oil return oil purifier (1), thermostat valve one (9) are installed in the fuel tank (10), under the machine normal condition, thermostat valve one (9) should be immersed in the interior oil of fuel tank.Thermostat valve two (11) is connected engine coolant to flow out in the pipeline; Finish the connection of pressure duct between fuel tank (10), oil hydraulic pump (3), valve block assembly (5), hydraulic pressure working connection (7) and valve block assembly (5) oil outlet, thermostat valve (9), the radiator (8); Finish between hydraulic pressure working connection (7), radiator (8), the oil return oil purifier (1) simultaneously and oil return oil purifier (1), thermostat valve two (11), vent window (12) between the connection of pipeline; Connect pipeline and relief valve (6) two ends pipeline between valve block assembly (5), manual stopcock (4), the oil return oil purifier (1) at last.
Claims (2)
1, a kind of construction machinery hydraulic system energy-saving control loop, it comprises oil return oil purifier (1), motor (2), oil hydraulic pump (3), valve block assembly (5), manual stopcock (4), relief valve (6), hydraulic pressure working connection (7), radiator (8), fuel tank (10) and connecting pipeline, from hydraulic oil process oil hydraulic pump (3), valve block assembly (5), the hydraulic pressure working connection formation high-pressure oil passage of fuel tank; The hydraulic oil that returns from the hydraulic pressure working connection forms low tension loop through radiator (8), oil return oil purifier (1); It is characterized in that in the engine coolant export pipeline, being equipped with thermostat valve two (11), thermostat valve two (11) is connected between vent window (12) and the loop oil purifier (1) by pipeline, forms different back pressure control loops with valve block assembly (5), manual stopcock (4), oil return oil purifier (1), vent window (12); Thermostat valve one (9) is housed in fuel tank (10), is connected between valve block assembly (5) and the radiator (8) with pipeline.
2, a kind of construction machinery hydraulic system energy-saving control loop according to claim 1 is characterized in that thermostat valve one (9) is immersed in the oil in the fuel tank (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520077485 CN2878762Y (en) | 2005-11-16 | 2005-11-16 | Energy-saving control loop for engineering mechanical hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520077485 CN2878762Y (en) | 2005-11-16 | 2005-11-16 | Energy-saving control loop for engineering mechanical hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2878762Y true CN2878762Y (en) | 2007-03-14 |
Family
ID=37861177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520077485 Expired - Fee Related CN2878762Y (en) | 2005-11-16 | 2005-11-16 | Energy-saving control loop for engineering mechanical hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2878762Y (en) |
-
2005
- 2005-11-16 CN CN 200520077485 patent/CN2878762Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |