CN202100559U - Potential energy recovering hydraulic system - Google Patents
Potential energy recovering hydraulic system Download PDFInfo
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- CN202100559U CN202100559U CN 201120163560 CN201120163560U CN202100559U CN 202100559 U CN202100559 U CN 202100559U CN 201120163560 CN201120163560 CN 201120163560 CN 201120163560 U CN201120163560 U CN 201120163560U CN 202100559 U CN202100559 U CN 202100559U
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Abstract
The utility model discloses a potential energy recovering hydraulic system, which comprises an energy converter, a pressure energy maintaining valve, a controllable changeover valve, a controllable energy storage system, a pressurizing system, an oil storage machine, a movable arm and corresponding connection. Through the using of the system, not only can a potential energy controllably descending the movable arm be converted into a hydraulic energy to store into an energy storage piece, but also the stored hydraulic energy can be used for pressurizing to do work for load; therefore, heat of the hydraulic system is reduced, an input power of a prime motor is reduced, and a purpose of saving energy is achieved.
Description
Technical field
The utility model relates to a kind of hydraulic system that can control the flow of fluid of enegrgy converter, relates in particular to from enegrgy converter recovered energy and utilizes the energy that reclaims that the device of one determined power is provided for operation subsequently.
Background technique
The normal employing of engineering machinery and agricultural equipment is converted into mechanical motion with hydraulic fluid flow and operates various mechanical parts.For example, excavator is a kind of engineering machinery commonly used, and excavator boom often utilizes hydraulic jack to realize its up-down.Hydraulic jack comprises a cylinder that has piston; This piston marks off two chambers in cylinder; The bar that links to each other with piston is connected on the cantilever, and oil cylinder links to each other with the main body of excavator, through the rising and the reduction of bar outwards being stretched from oil cylinder and bar withdrawal in the oil cylinder being realized cantilever.
During excavator operation; The for example constant adjustment in position of equipments such as cantilever, dipper, scraper bowl and corresponding oil cylinder; Particularly cantilever often is in from a certain low level and rises to an a certain high position, drop to the to-and-fro motion process of a certain low level from an a certain high position again among because quality such as cantilever and effect dipper, scraper bowl above that are bigger; From the Conversion of energy principle; Cantilever can only reduce under the effect of gravity, and if the resistance of decline is not provided, in the decline process, is prone to weightlessness.In order to prevent its weightlessness, solution in the past is to keep hydraulic jack and have certain back pressure when swing arm is descending; The flow of for this reason being everlasting reflux line is provided with throttling arrangement; Hydraulic oil flows back to fuel tank after through throttling arrangement, and the potential energy of cantilever changes into heat energy like this, has been slatterned in vain; Harm for the temperature that prevents hydraulic oil raises significantly system is brought also need be provided with sink.Therefore, need find a kind of otherwise effective technique to come in hydraulic system, to realize the recovery and reuse of energy.
The model utility content
The technical problem that the utility model will solve provides a kind of device of hydraulic system energy recovery, and energy saving reduces the temperature rise of hydraulic system hydraulic oil.
In order to address the above problem; The basic technical scheme that the utility model adopts is: the hydraulic system that is used to reclaim potential energy; Comprise enegrgy converter, pressure energy maintaining valve, controlled switching valve, controlled energy-storage system, booster system, accumulator, said enegrgy converter is separated into two Room by piston with rod, is connected through first oil duct between a Room and the controlled switching valve; First oil duct is provided with the pressure energy maintaining valve, is connected through second oil duct between another chamber and the controlled switching valve; Said controlled energy-storage system comprise be controlled by signal three release energy threshold and accumulation of energy part, be connected through the 3rd oil duct between controlled energy-storage system and the controlled switching valve; Said booster system comprises pump and is located at the one-way valve of its inlet port, and the pump oil input channel is connected with accumulator through the 4th oil duct and one-way valve, is connected with energy-storage system through the 5th oil duct with the 4th oil duct between the one-way valve at pump; SC sigmal control one end of said controlled switching valve and the SC sigmal control end of pressure energy maintaining valve are controlled by same signal one, and another SC sigmal control end of controlled switching valve is controlled by signal two, and said signal one can not be simultaneously effectively with said signal three.
Preferably, described signal one, signal two, signal three are hydraulic pressure signal and/or electrical signal.
The beneficial effect that the utility model brings: the utility model is applicable to the recycling of excavator class movable arm potential energy; Enegrgy converter charges into the accumulation of energy part to the potential energy of swing arm through controlled switching valve when swing arm descends; When excavator when removing the power consumption operation that swing arm descends through booster system the fluid that the stores acting of boosting, reduce prime mover input power, generate heat thereby realize reducing hydraulic system; Energy saving reduces prime mover discharge amount.Have simple in structurely, control is convenient, reliable performance, and the high characteristics of cost performance.
Description of drawings
Fig. 1 is the structural representation of the hydraulic system of embodiment's 1 potential energy recovery.
Embodiment
Below will combine accompanying drawing 1 and specific embodiment that the utility model is explained further details:
With the excavator is example, and referring to Fig. 1, excavator boom 12 is by its motion of flexible promotion of the piston with rod 01C of enegrgy converter 01.The system that reclaims hydraulic pressure potential energy comprises enegrgy converter 01, pressure energy maintaining valve 04, controlled switching valve 05, controlled energy-storage system 07, booster system 09, accumulator 11; Said enegrgy converter 01 is separated into 01A, 01B two Room by piston with rod 01C; Be connected through oil duct 02 between 01A chamber and the controlled switching valve 05; Oil duct 02 is provided with pressure energy maintaining valve 04, is connected through oil duct 03 between 01B chamber and the controlled switching valve 05; Said controlled energy-storage system 07 comprise be controlled by signal Signal3 release energy threshold 07A and accumulation of energy part 07B, be connected through controlled switching valve 05 oil duct 05E between controlled energy-storage system 07 and the controlled switching valve 05; Said booster system 09 comprises pump 09A and is located at the one-way valve 09B of its inlet port, and pump 09A oil input channel is connected with accumulator 11 through oil duct 10 and one-way valve 09B, is connected with energy-storage system 07 through oil duct 08 with oil duct 10 between the one-way valve 09B at pump 09A; The Pa2 end of said controlled switching valve 05 is controlled by same signal Signal1 with the Pi1 end of pressure energy maintaining valve 04, and the other end of controlled switching valve 05 is controlled by signal Signal2, and said signal Signal1 and said signal Signal3 can not be simultaneously effectively.Signal Signal1, Signal2, Signal3 can be hydraulic pressure signal and/or electrical signal.
Booster system 09: oil pump 09A adopts the hydraulic gear pump with motor function.When oil duct 08 no pressure oil fed inlet port, oil pump 09A worked by the mode of pump; When oil duct 08 has pressure to feed inlet port, if this pressure greater than outlet pressure, oil pump 09A works by the motor mode, if this pressure less than outlet pressure, oil pump 09A works by the mode of pump; When externally doing work in system, as long as oil duct 08 has pressure oil to feed oil pump 09A inlet port, this pressure oil must reduce the output power of prime mover, thereby reaches purpose of energy saving but in any case.The effect of one-way valve 09B has 2 points: 1) gear pump do pump with and the no pressure oil of oil duct 08 can pass through one-way valve 09B from accumulator 11 oil suctions when feeding the pump inlet port; 2) pressure oil that discharges from controlled energy-storage system 07 can prevent when acting on oil pump 09A inlet port through oil duct 08 that pressure oil from flowing into fuel tank, thereby promotes oil pump 09A acting.
Controlled energy-storage system 07: accumulation of energy part 07B stores the fluid from controlled switching valve 05 control through oil duct 05E; The initial pressure that charges into accumulation of energy part 07B is confirmed that by accumulation of energy part parameter the switching-over of energy threshold 07A is released in signal Signal3 control, when consuming energy operation; Signal3 is effective; Release energy threshold 07A switching-over and connect accumulation of energy part 07B, help acting, reduce the input of prime mover energy thereby introduce booster system 09 to the pressure oil in the accumulation of energy part to the oil duct 08 between the oil pump 09A.When Signal3 was invalid, swing arm can carry out step-down operation.
Controlled switching valve 05: controlled switching valve 05 is controlled by signal Signal1, Signal2 respectively.When signal Signal1 is effective, position, controlled switching valve 05 a switching-over left side, pressure energy maintaining valve 04 is opened; At this moment oil duct 05B is cut off; Oil duct 05C is turned down by corresponding, and oil duct 05D and oil duct 02 connection, oil duct 05E and oil duct 03 are connected, and the degree that their are connected is controlled by the size of signal Signal1; Switching along with these oil ducts; The pressure oil that comes from oil duct 05D passes through the 01B chamber that controlled switching valve valve joins 05A, oil duct 03 entering enegrgy converter 01, and the 01A chamber pressure oil of enegrgy converter 01 charges into controlled energy-storage system 07 through oil duct 02, pressure energy maintaining valve 04, controlled switching valve valve couplet 05A, oil duct 05E, in the operating process; The 01B chamber of enegrgy converter 01 constantly increases; The 01A chamber of enegrgy converter 01 constantly reduces, and swing arm 12 also drops to low level from a high position, and converting potential energy to pressure through enegrgy converter 01 can store by back feeding accumulation of energy part 07B; When signal Signal2 is effective, the right position of controlled switching valve 05 switching-over, at this moment oil duct 05B is cut off; Oil duct 05C constantly turns down to breaking off fully, and oil duct 05D and oil duct 02 are connected, and oil duct 05F and oil duct 03 are connected; The degree that they are connected is controlled by the size of signal Signal2 equally, and along with the switching of these oil ducts, the pressure oil that comes from oil duct 05D passes through the 01A chamber that controlled switching valve valve joins 05A, pressure energy maintaining valve 04, oil duct 02 entering enegrgy converter 01; And the 01B chamber fluid of enegrgy converter 01 feeds total oil return T1 through oil duct 03, controlled switching valve valve couplet 05A, oil duct 05F, in this process, constantly charges into the 01A chamber of enegrgy converter 01 from the next pressure oil of oil duct 05D; 01A chamber volume increases, and simultaneously, the 01B chamber fluid of enegrgy converter 01 is constantly discharged; 01B chamber volume dwindles; Through this volume-variation, the rod member 01C of enegrgy converter 01 constantly stretches out, and makes swing arm 12 be raised to a high position from low level.
Pressure energy maintaining valve 04, being used for all invalid at signal Signal1, Signal2 is the 01A chamber pressure oil leakage that controlled switching valve valve prevents enegrgy converter 01 when joining 05A at meta, keeps the invariant position of swing arm 12.
In order to let swing arm 12 smooth decreasings, controllability is strong, and must there be certain back pressure the 01A chamber of enegrgy converter 01, and the size of back pressure confirmed by the initial parameters of controlled energy-storage system 07 accumulation of energy part 07B, to this, at signal Signal1, Signal3 can not be simultaneously effectively.
The above is merely the preferred embodiment of the utility model, and limits the utility model never in any form, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (2)
1. the hydraulic system that reclaims of a potential energy; It is characterized in that: comprise enegrgy converter (01), pressure energy maintaining valve (04), controlled switching valve (05), controlled energy-storage system (07), booster system (09), accumulator (11); Said enegrgy converter (01) is separated into two Room (01A, 01B) by piston with rod (01C); Be connected through oil duct (02) between one Room (01A) and the controlled switching valve (05); Oil duct (02) is provided with pressure energy maintaining valve (04), is connected through oil duct (03) between another chamber (01B) and the controlled switching valve (05); Said controlled energy-storage system (07) comprise be controlled by signal three (Signal3) control release energy threshold (07A) and accumulation of energy part (07B), be connected through oil duct (05E) between controlled energy-storage system (07) and the controlled switching valve (05); Said booster system (09) comprises pump (09A) and is located at the one-way valve (09B) of its inlet port; Pump (09A) is connected with accumulator (11) through oil duct (10) and one-way valve (09B), is connected with energy-storage system (07) through oil duct (08) with oil duct (10) between the one-way valve (09B) at pump (09A); One end (Pa2) of said controlled switching valve (05) is controlled by same signal one (Signal1) with an end (Pi1) of pressure energy maintaining valve (04); The other end of controlled switching valve (05) is controlled by signal two (Signal2), and said signal one (Signal1) can not be simultaneously effectively with said signal three (Signal3).
2. the hydraulic system that potential energy according to claim 1 reclaims, it is characterized in that: described signal one (Signal1), signal two (Signal2), signal three (Signal3) are hydraulic pressure signal and/or electrical signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120163560 CN202100559U (en) | 2011-05-21 | 2011-05-21 | Potential energy recovering hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120163560 CN202100559U (en) | 2011-05-21 | 2011-05-21 | Potential energy recovering hydraulic system |
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| Publication Number | Publication Date |
|---|---|
| CN202100559U true CN202100559U (en) | 2012-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120163560 Expired - Fee Related CN202100559U (en) | 2011-05-21 | 2011-05-21 | Potential energy recovering hydraulic system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296663A (en) * | 2011-05-21 | 2011-12-28 | 山河智能装备股份有限公司 | Hydraulic system for recovering potential energy |
| CN102889273A (en) * | 2012-10-18 | 2013-01-23 | 浙江大学 | Electro-hydraulic system for recycling and releasing potential energy of engineering machinery |
| CN104100608A (en) * | 2013-04-08 | 2014-10-15 | 宝钢工业炉工程技术有限公司 | Standby device used for potential energy recovery system failure and application method of standby device |
| CN105179343A (en) * | 2015-10-27 | 2015-12-23 | 中国矿业大学 | Multi-cylinder synchronous energy-saving efficient hydraulic lifting system and method |
-
2011
- 2011-05-21 CN CN 201120163560 patent/CN202100559U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296663A (en) * | 2011-05-21 | 2011-12-28 | 山河智能装备股份有限公司 | Hydraulic system for recovering potential energy |
| CN102889273A (en) * | 2012-10-18 | 2013-01-23 | 浙江大学 | Electro-hydraulic system for recycling and releasing potential energy of engineering machinery |
| CN102889273B (en) * | 2012-10-18 | 2015-07-22 | 浙江大学 | Electro-hydraulic system for recycling and releasing potential energy of engineering machinery |
| CN104100608A (en) * | 2013-04-08 | 2014-10-15 | 宝钢工业炉工程技术有限公司 | Standby device used for potential energy recovery system failure and application method of standby device |
| CN104100608B (en) * | 2013-04-08 | 2016-06-01 | 宝钢工业炉工程技术有限公司 | For stand-by plant during potential energy recovery system fault and using method thereof |
| CN105179343A (en) * | 2015-10-27 | 2015-12-23 | 中国矿业大学 | Multi-cylinder synchronous energy-saving efficient hydraulic lifting system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20160521 |
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| CF01 | Termination of patent right due to non-payment of annual fee |