CN1847670A - Energy-saving control loop of hydraulic system - Google Patents
Energy-saving control loop of hydraulic system Download PDFInfo
- Publication number
- CN1847670A CN1847670A CN 200510065394 CN200510065394A CN1847670A CN 1847670 A CN1847670 A CN 1847670A CN 200510065394 CN200510065394 CN 200510065394 CN 200510065394 A CN200510065394 A CN 200510065394A CN 1847670 A CN1847670 A CN 1847670A
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- oil
- hydraulic
- hydraulic pump
- engine
- block assembly
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Abstract
The present invention relates to water cooled engine driving hydraulic pump directly and aims at lowering power consumption. The control loop consists of over ten parts, including return oil filter, engine, hydraulic pump, hand cock, etc. as well as pipeline. During idle running of the engine, the valve block assembly feeds the hydraulic oil from the hydraulic pump back to the oil tank through the heat sink and the return oil filter, producing little energy loss. When the equipment is run, the hand cock is first opened, and the pressure the return oil filter produces is utilizes to drive the valve block assembly to commutate, so that pressurized oil from the hydraulic pump fills the whole high pressure pipeline for the equipment to run normally. After the temperature of the hydraulic oil and the engine cooling fluid is raised to certain value, the temperature controlled valve is opened automatically, the ventilating channel to the engine tank and the heat sink is opened and the fan is rotated, so as to cool the hydraulic oil and the engine cooling fluid.
Description
Technical field
The present invention relates to the engineering machinery hydraulic loop,, realize energy-saving and cost-reducing to greatest extent according to the implement working condition requirement.Because selector valve, thermostat valve, valve block assembly and the connecting pipeline thereof of special setting are contained in this loop, even oil hydraulic pump and motor are connected as a single entity, the zero load that still can realize motor starts and running (load of non-construction state is minimum, can reach the degree of ignoring).
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.No matter be to contain hydraulic pressure open circuit, closed circuit, or the modernized machinery of quantitative system, variable system is seen everywhere.
The structure that above-described oil hydraulic circuit mostly adopts oil hydraulic pump and motor directly to link to each other, as long as the energy consumption of engine running oil hydraulic pump just can't be avoided whether (no matter machinery operation), especially the most outstanding with the quantitative hydraulic pump system, motor is all the time with maximum pump discharge and the running of system specialization maximum pressure, hydraulic oil directly enters fuel tank after the security of system valve is opened, and causes great energy waste.
Summary of the invention
The purpose of this invention is to provide a kind of easy to connect, reliable in action, the machinery that guarantees the configuration oil hydraulic pump is between the non-operational period behind the engine start, especially quantitative hydraulic pump system, energy waste problem be greatly improved energy-saving control loop of hydraulic system.
The object of the present invention is achieved like this: this oil hydraulic circuit mainly is made up of component such as oil return oil purifier, motor, oil hydraulic pump, valve block assembly, manual stopcock, relief valve, hydraulic pressure working connection, radiator, thermostat valve, fuel tank and pipeline fittingses.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; The valve block assembly, manually stopcock, with oily oil purifier, vent window, thermostat valve two, oil return oil purifier form different control loops (the hydraulic oil oil return oil purifier of common mechanical equipment again, in the process of filtering hydraulic oil, can produce the pressure of 5-10bar, be commonly called as back pressure, as long as engine running, this pressure exists all the time).
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 according to the needs of bulk separately, also be installed on the same pedestal, vent window and engine cooling water tank fuse; 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 engine coolant export pipeline; 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.
Advantage of the present invention is in water cooling motor and the direct-connected structure of oil hydraulic pump, particularly uses the hydraulic system of quantitative hydraulic pump, can realize the purpose of energy saving to greatest extent, reduces the heat radiation of motor at severe cold area.Because this oil hydraulic circuit is simple in structure, quantitative hydraulic pump with low cost, easy to maintenance, machinery cost of production cost of use also greatly reduces.
Be described further below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is one embodiment of the present of invention schematic diagrams.
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 (9) are installed in the fuel tank (10), thermostat valve two (11) are connected engine coolant 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. energy-saving control loop of hydraulic system, this loop are mainly by oil return oil purifier, motor, oil hydraulic pump, oil cylinder valve block assembly, manually component such as stopcock, relief valve, hydraulic pressure working connection, radiator, thermostat valve, fuel tank are formed.It is characterized in that the rotation of motor in the thermostat valve control radiator and the unlatching of radiator vent window, thermostat valve two is controlled opening of engine water tank vent windows.
2. energy-saving control loop of hydraulic system according to claim 1 is characterized in that by manual stopcock control valve block assembly, realizes the switching of machinery hydraulic system high-pressure oil passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510065394 CN1847670A (en) | 2005-04-04 | 2005-04-04 | Energy-saving control loop of hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510065394 CN1847670A (en) | 2005-04-04 | 2005-04-04 | Energy-saving control loop of hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1847670A true CN1847670A (en) | 2006-10-18 |
Family
ID=37077357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510065394 Pending CN1847670A (en) | 2005-04-04 | 2005-04-04 | Energy-saving control loop of hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1847670A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104040189A (en) * | 2012-01-11 | 2014-09-10 | 伊顿公司 | Method of controlling fluid pressure-actuated switching component and control system for same |
-
2005
- 2005-04-04 CN CN 200510065394 patent/CN1847670A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104040189A (en) * | 2012-01-11 | 2014-09-10 | 伊顿公司 | Method of controlling fluid pressure-actuated switching component and control system for same |
| US9284865B2 (en) | 2012-01-11 | 2016-03-15 | Eaton Corporation | Method of controlling fluid pressure-actuated switching component and control system for same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |