CN102966637A - Intermittent hydraulic system - Google Patents
Intermittent hydraulic system Download PDFInfo
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- CN102966637A CN102966637A CN2012104643326A CN201210464332A CN102966637A CN 102966637 A CN102966637 A CN 102966637A CN 2012104643326 A CN2012104643326 A CN 2012104643326A CN 201210464332 A CN201210464332 A CN 201210464332A CN 102966637 A CN102966637 A CN 102966637A
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- storage tank
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- oil storage
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Abstract
The invention relates to an intermittent hydraulic system. The intermittent hydraulic system mainly consists of an oil storage tank and some hydraulic elements, wherein the upper part of the oil storage tank is filled with inert gas, air or nitrogen, and the lower part of the oil storage tank is provided with hydraulic oil. According to the intermittent hydraulic system, a power source is supplied to a hydraulic actuator in intermittent operation by using the expansion characteristics of the gas; and oil is supplied to the oil storage tank by using a low-power oil pump, and the low-power oil pump can also intermittently work, so that the energy consumption is little, and the efficiency is high.
Description
Technical field
The present invention relates to Hydraulic Field, especially the intermittent type hydraulic system.
Background technique
At present, hydraulic transmission generally has been applied to every field, hydraulicdriven system and device is referred to as hydraulic system, the fundamental circuit of hydraulic system as shown in Figure 1, be made of oil pump 7, stable-pressure device 4, hydralic pressure gauge 2, control valve 10, pipeline 11 and executive component 12 etc., common hydraulic system is that the working pressure in the system is made as constant voltage, by the control to flow and the flow direction, make hydraulic actuator realize various motions and action, and then reach the purpose of mechanical work; The sharpest edges of hydraulic system be exactly have good can be handling, utilize this characteristic to realize that control is particularly convenient automatically; But the weakness of hydraulic system is exactly that efficient is lower, and main cause is, in order to provide and keep the constant pressure of whole hydraulic system, and oil pump 7 essential continuously operations, for the mechanism of high-power oil pump or intermittent duty, the drawback of fallback is more outstanding.
Also have the hydraulic pressure miscellaneous function in some machineries or the lathe: such as brake, commutation, orientation, location, clamping, tool changing and gearshift etc., belong to the long formula interstitial fluid pressing system of having a rest, the efficiency of these hydraulic systems has not just more been known where to begin.
Summary of the invention
In order to solve hydraulic system, the particularly inefficiency problem of the long formula intermittent hydraulic system of having a rest, the invention provides a kind of intermittent type hydraulic system, this system mainly is made of oil storage tank and some hydraulic element, oil storage tank top is filled with inert gas, air or nitrogen, the oil storage tank bottom is hydraulic oil, utilize the expansion characteristics of gas, for the intermittently used hydraulic actuator provides power source; Utilize the small-power oil pump to be the oil storage tank fuel feeding, the small-power oil pump also can discontinuous operation, and therefore, power consumption is few, and efficient is high.
The technological scheme that the present invention takes is: form the intermittent type hydraulic system by oil storage tank, pressure gauge, pressure relay, relief valve, oil sump, filter, oil pump, one-way valve, selector valve, oil pipe, executive component, each element is connected by oil pipe, or is integrated and connected by connecting plate; When operation of oil pump, the hydraulic oil of oil sump enters oil storage tank by filter, oil pump and one-way valve, until the pressure of pressure oil is when reaching setup pressure value, and the pressure relay action, and control oil pump quits work; The working pressure oil of executive component is provided by oil storage tank in principle, when the selector valve action, spool moves to left, when executive component and system consist of path, the pressure oil of oil storage tank passes through one-way valve, selector valve enters the left chamber of executive component, the low pressure oil in the right chamber of executive component is got back to oil sump by selector valve, when the selector valve action, spool moves to right, when executive component and system consist of path, the pressure oil of oil storage tank passes through one-way valve, selector valve enters the right chamber of executive component, the low pressure oil in the left chamber of executive component is got back to oil sump by selector valve, like this, executive component has just been finished a work cycle.
The invention has the beneficial effects as follows, utilize the expansion characteristics of gas, provide power source for the intermittently used hydraulic actuator in short-term; Utilize the small-power oil pump to be the oil storage tank fuel feeding, the small-power oil pump also can discontinuous operation, and therefore, power consumption is few, and efficient is high.
Description of drawings
Fig. 1 is hydraulic system fundamental circuit schematic representation.
Fig. 2 is that the intermittent type hydraulic system consists of schematic representation.
Fig. 3 is another view of Fig. 2.
Fig. 4 is the oil storage tank structural representation.
Fig. 5 is the local enlarged diagram of Fig. 4.
Fig. 6 is another view of Fig. 5.
Among the figure: 1. oil storage tank, 2. pressure gauge, 3. pressure relay, 4. relief valve, 5. oil sump, 6. filter, 7. oil pump, 8. one-way valve, 9. one-way valve, 10. selector valve, 11. oil pipes, 12. executive components, 14. is cursory, 16. valve bodies, 17. spools.
Embodiment
Shown in Fig. 2,3,4,5 and 6, this intermittent type hydraulic system is a kind of Hydraulic Power Transmission System that power source is provided for the intermittently used executive component, be characterized in being consisted of by oil storage tank 1, pressure gauge 2, pressure relay 3, relief valve 4, oil sump 5, filter 6, oil pump 7, one-way valve 8, one-way valve 9, selector valve 10, oil pipe 11 and executive component 12, each element is connected by oil pipe 11 by diagram position order, or is integrated and connected by connecting plate by diagram position order; When oil pump 7 work, the hydraulic oil of oil sump 5 enters oil storage tank 1 by filter 6, oil pump 7 and one-way valve 8, until the pressure of pressure oil is when reaching setup pressure value, and pressure relay 3 actions, and control oil pump 7 quits work; The working pressure oil of executive component 12 is provided by oil storage tank 1 in principle, when selector valve 10 actions, spool moves to left, when executive component 12 consists of path with system, the pressure oil of oil storage tank 1 is by one-way valve 9, selector valve 10 enters the left chamber of executive component 12, the low pressure oil in executive component 12 right chambeies is got back to oil sump 5 by selector valve 10, when selector valve 10 actions, spool moves to right, when executive component 12 consists of path with system, the pressure oil of oil storage tank 1 is by one-way valve 9, selector valve 10 enters the right chamber of executive component 12, the low pressure oil in executive component 12 left chambeies is got back to oil sump 5 by selector valve 10, like this, executive component 12 has just been finished a work cycle.
Shown in Fig. 4,5 and 6, oil storage tank 1 is the primary component of intermittent type hydraulic system, the top that is characterized in oil storage tank 1 is filled with inert gas, air or nitrogen, the bottom of oil storage tank 1 is hydraulic oil, oil storage tank 1 be provided with bottom a cursory control formula one-way valve, hydraulic oil is connected with hydraulic system by cursory control formula one-way valve.
As illustrated in Figures 5 and 6, cursory control formula one-way valve is the device of restriction oil storage tank 1 interior minimum oil level, be characterized in being consisted of by valve body 16, spool 17 and cursory 14, the height of tank level is maintaining cursory 14 rising or decline, the knee-action of spool 17 is being controlled again in cursory 14 rising or decline, when liquid level drops to desired location, spool 17 just drops to the limit inferior position, at this moment, cursory control formula one-way valve is in closed condition, hydraulic oil in the oil storage tank 1 can not be outflowed, thereby guaranteed minimum oil level.
As illustrated in Figures 5 and 6, cursory 14 of cursory control formula one-way valve is threaded with spool 17 usefulness, and cursory 14 can regulate with the relative position of spool 17, determined cursory 14 with the relative position of spool 17, just determined the minimum oil level in the oil storage tank 1.
Claims (5)
1. the intermittent type hydraulic system is a kind of Hydraulic Power Transmission System that power source is provided for the intermittently used executive component, it is characterized in that oil storage tank (1), pressure gauge (2), pressure relay (3), relief valve (4), oil sump (5), filter (6), oil pump (7), one-way valve (8), one-way valve (9), selector valve (10) and each element of executive component (12) are connected by oil pipe (11) by diagram position order, or be integrated and connected by connecting plate by diagram position order; When oil pump (7) is worked, the hydraulic oil of oil sump (5) enters oil storage tank (1) by filter (6), oil pump (7) and one-way valve (8), until the pressure of pressure oil is when reaching setting value, pressure relay (3) action, and control oil pump 7 quits work; The working pressure oil of executive component (12) is provided by oil storage tank (1) in principle, when selector valve (10) action, spool moves to left, when executive component (12) consists of path with system, the pressure oil of oil storage tank (1) is by one-way valve (9), selector valve (10) enters the left chamber of executive component (12), the low pressure oil in the right chamber of executive component (12) is got back to oil sump (5) by selector valve (10), when selector valve (10) action, spool moves to right, when executive component (12) consists of path with system, the pressure oil of oil storage tank (1) is by one-way valve (9), selector valve (10) enters the right chamber of executive component (12), the low pressure oil in the left chamber of executive component (12) is got back to oil sump (5) by selector valve (10), like this, executive component (12) has been finished a work cycle.
2. root a tree name intermittent type hydraulic system claimed in claim 1, oil storage tank (1) is the primary component of this system, the top that it is characterized in that oil storage tank (1) is filled with inert gas, air or nitrogen, the bottom of oil storage tank (1) is hydraulic oil, oil storage tank (1) be provided with bottom a cursory control formula one-way valve, hydraulic oil is connected with hydraulic system by cursory control formula one-way valve.
3. root a tree name claim 1,2 described intermittent type hydraulic systems, cursory control formula one-way valve is the device of minimum oil level in the restriction oil storage tank (1), it is characterized in that by valve body (16), spool (17) and cursory (14) consist of, the height of tank level is maintaining cursory (14) rising or decline, the knee-action of spool (17) is being controlled again in the rising of cursory (14) or decline, when liquid level drops to desired location, spool (17) just drops to the limit inferior position, at this moment, cursory control formula one-way valve is in closed condition, hydraulic oil in the oil storage tank (1) can not be outflowed, thereby guaranteed minimum oil level.
4. root a tree name claim 1,2,3 described intermittent type hydraulic systems, cursory (14) that it is characterized in that cursory control formula one-way valve and spool (17) are with being threaded, cursory (14) can be regulated with the relative position of spool (17), determine the relative position of cursory (14) and spool (17), just determined the minimum oil level in the oil storage tank (1).
5. root a tree name claim 1,2,3,4 described intermittent type hydraulic systems is characterized in that executive component (12) is oil cylinder or oil hydraulic motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104643326A CN102966637A (en) | 2012-11-19 | 2012-11-19 | Intermittent hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104643326A CN102966637A (en) | 2012-11-19 | 2012-11-19 | Intermittent hydraulic system |
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| CN102966637A true CN102966637A (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012104643326A Pending CN102966637A (en) | 2012-11-19 | 2012-11-19 | Intermittent hydraulic system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104785843A (en) * | 2015-05-05 | 2015-07-22 | 江西洪都航空工业集团有限责任公司 | Individual hydraulic station capable of controlling gear shift system of milling machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101074685A (en) * | 2007-07-11 | 2007-11-21 | 杭州和利时自动化有限公司 | Self-capacitance electrohydraulic executor |
| CN201314307Y (en) * | 2008-12-23 | 2009-09-23 | 南京埃尔法电液技术有限公司 | Frame-machine hydraulic-system |
| CN201507505U (en) * | 2009-09-23 | 2010-06-16 | 山东广富集团有限公司 | Hydraulic station electromotor intermittent starting booster unit |
| CN101749291A (en) * | 2008-12-11 | 2010-06-23 | 郑文瑞 | Pail floating type power accumulator |
| WO2010133826A1 (en) * | 2009-05-18 | 2010-11-25 | Fawcett Christie Hydraulics Limited | Bladder type accumulator |
| CN102235563A (en) * | 2010-03-26 | 2011-11-09 | 奥拉尔(瑞士)股份公司 | Pressure equalising device for systems through which fluid flows |
| CN102562460A (en) * | 2011-12-29 | 2012-07-11 | 燕山大学 | Undamped hydraulic yaw system based on pressure detection and control method of undamped hydraulic yaw system |
-
2012
- 2012-11-19 CN CN2012104643326A patent/CN102966637A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101074685A (en) * | 2007-07-11 | 2007-11-21 | 杭州和利时自动化有限公司 | Self-capacitance electrohydraulic executor |
| CN101749291A (en) * | 2008-12-11 | 2010-06-23 | 郑文瑞 | Pail floating type power accumulator |
| CN201314307Y (en) * | 2008-12-23 | 2009-09-23 | 南京埃尔法电液技术有限公司 | Frame-machine hydraulic-system |
| WO2010133826A1 (en) * | 2009-05-18 | 2010-11-25 | Fawcett Christie Hydraulics Limited | Bladder type accumulator |
| CN201507505U (en) * | 2009-09-23 | 2010-06-16 | 山东广富集团有限公司 | Hydraulic station electromotor intermittent starting booster unit |
| CN102235563A (en) * | 2010-03-26 | 2011-11-09 | 奥拉尔(瑞士)股份公司 | Pressure equalising device for systems through which fluid flows |
| CN102562460A (en) * | 2011-12-29 | 2012-07-11 | 燕山大学 | Undamped hydraulic yaw system based on pressure detection and control method of undamped hydraulic yaw system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104785843A (en) * | 2015-05-05 | 2015-07-22 | 江西洪都航空工业集团有限责任公司 | Individual hydraulic station capable of controlling gear shift system of milling machine |
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Application publication date: 20130313 |