CN205012397U - Hydraulic shovel swing arm potential energy recovery system - Google Patents
Hydraulic shovel swing arm potential energy recovery system Download PDFInfo
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- CN205012397U CN205012397U CN201520422859.1U CN201520422859U CN205012397U CN 205012397 U CN205012397 U CN 205012397U CN 201520422859 U CN201520422859 U CN 201520422859U CN 205012397 U CN205012397 U CN 205012397U
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- 238000005381 potential energy Methods 0.000 title claims abstract description 22
- 238000011084 recovery Methods 0.000 title claims abstract description 17
- 239000002828 fuel tank Substances 0.000 claims description 20
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- 238000004146 energy storage Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 abstract 4
- 239000003921 oil Substances 0.000 description 40
- 239000010720 hydraulic oil Substances 0.000 description 10
- 230000006872 improvement Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Operation Control Of Excavators (AREA)
Abstract
The utility model provides a hydraulic shovel swing arm potential energy recovery system's technical scheme, this scheme is still including two master control hydro -cylinders and an auxiliary oil cylinder of being used for driving the swing arm motion, auxiliary oil cylinder sets up with two master control hydro -cylinders are parallelly connected respectively, the jar pole of two master control hydro -cylinders and auxiliary oil cylinder's jar pole simultaneous movement, the hydraulic pump has pole chamber, no pole chamber and auxiliary oil cylinder's the pole chamber that has to communicate through second switching -over valve and two master control hydro -cylinders, auxiliary oil cylinder's no pole chamber and energy storage ware intercommunication. Use the utility model discloses can retrieve the potential energy that auxiliary oil cylinder descends in the energy storage ware, the energy storage ware potential energy that release was stored when the swing arm rises, whole hydraulic system compares than prior art, greatly reduced the energy consumption, reduced to generate heat, realized the reuse of energy.
Description
Technical field
The utility model relates to engineering machinery hydraulic transmission field, especially a kind of Hydraulic Excavator's Boom potential energy recovery system.
Background technology
Hydraulic crawler excavator is a kind of widely used engineering machinery, equipment weight accounts for complete machine weight 1/4, and in excavator operation process, each work cycle wants lifting and decline one action device, need a large amount of energy during lifting, potential energy during decline wastes again.In prior art, this is the weak point existing for prior art.
Summary of the invention
Technical problem to be solved in the utility model, be exactly for the deficiency existing for prior art, and a kind of technical scheme of Hydraulic Excavator's Boom potential energy recovery system is provided, use the utility model can be recovered in accumulator by the potential energy that equipment declines, accumulator discharges the potential energy stored when swing arm rises, whole hydraulic system comparatively prior art is compared, and greatly reduces energy consumption, reduce heating, achieve the utilization again of energy.
This programme is achieved by the following technical measures: a kind of Hydraulic Excavator's Boom potential energy recovery system, comprise fuel tank and hydraulic pump, also comprise two master control oil cylinders for driving swing arm to move and an auxiliary cylinder, described auxiliary cylinder is arranged in parallel with two master control oil cylinders respectively, the cylinder bar of described two master control oil cylinders and the cylinder bar of auxiliary cylinder are synchronized with the movement, described hydraulic pump is communicated with through the rod chamber of the rod chamber of the second reversal valve and two master control oil cylinders, rodless cavity and auxiliary cylinder, and the rodless cavity of described auxiliary cylinder is communicated with accumulator.
Further improvement of the utility model also has, and is provided with one way valve between the high-voltage oil cavity of described second reversal valve and low pressure oil pocket.Can be implemented in short time oil return side hydraulic oil by one way valve and return to oil-feed side, such oil-feed effluent amount increases, and speed improves, and achieves flow regeneration function.
Further improvement of the utility model also has, what described second reversal valve adopted is three six-way transfer valves, P mouth, the N mouth of described second reversal valve are all communicated with hydraulic pump, the O mouth of described second reversal valve is communicated with fuel tank, the A mouth of described second reversal valve is communicated with the rodless cavity of two master control oil cylinders, the B mouth of described second reversal valve is communicated with the rod chamber of two master control cylinder rod chambers, auxiliary cylinder, the M mouth of described second reversal valve and the inlet communication of flow control valve, the outlet of described flow control valve is communicated with fuel tank.
Use for the first time in order to avoid accumulator or cause the reduction of energy-storage system pressure because of leakage, further improvement of the utility model also has, the outlet of described hydraulic pump has the first reversal valve having and fill energy and exoergic function, by controlling the valve core movement of the first reversal valve, accumulator being completed and fills energy and exoergic.
Further improvement of the utility model also has, what described first reversal valve adopted is three six-way transfer valves, P mouth, the N mouth of described first reversal valve are all communicated with described hydraulic pump, the O mouth of described first reversal valve is communicated with fuel tank, the M mouth of described first reversal valve is communicated with described flow control valve, and the B mouth of described first reversal valve is communicated with described accumulator through stop valve.
Further improvement of the utility model also has, and the rodless cavity of described auxiliary cylinder is directly communicated with by oil pipe with accumulator, namely on oil pipe, does not arrange any controlling organization, has energy recovery rate high, the feature of action quickness and high efficiency.
Further improvement of the utility model also has, and the exit of described hydraulic pump is communicated with overflow valve, and the outlet of this overflow valve is communicated with fuel tank.
Further improvement of the utility model also has, and what described accumulator adopted is piston accumulator.
Technical characterstic of the present utility model and good effect are:
(1) the utility model comprises fuel tank and hydraulic pump, also comprise two master control oil cylinders for driving swing arm to move and an auxiliary cylinder, described auxiliary cylinder is arranged in parallel with two master control oil cylinders respectively, the cylinder bar of described two master control oil cylinders and the cylinder bar of auxiliary cylinder are synchronized with the movement, Hydraulic Excavator's Boom of the present utility model adopts three cylinder structures to drive, these are compared with an oil cylinder of the prior art or two oil cylinders, the pressure that master control oil cylinder needs comparatively prior art reduces greatly, thus save the energy, shorten the time that boom cylinder promotes, improve the operating efficiency of complete machine,
(2) described hydraulic pump is communicated with through the rod chamber of the rod chamber of the second reversal valve and two master control oil cylinders, rodless cavity and auxiliary cylinder, the rodless cavity of described auxiliary cylinder is communicated with accumulator, by the rodless cavity of described auxiliary cylinder is communicated with accumulator, the potential energy storage that auxiliary cylinder declines is in accumulator, the fault offset stored in accumulator when the cylinder bar of auxiliary cylinder rises rises in order to promote swing arm, energy is utilized again, reaches reduction energy consumption, reduce the object of heating; The rodless cavity of auxiliary cylinder is directly communicated with accumulator, and centre does not arrange any controlling organization, thus has energy regenerating utilization rate high, the feature of action quickness and high efficiency;
(3) be provided with one way valve between the high-voltage oil cavity of described second reversal valve and low pressure oil pocket, the hydraulic oil of hydraulic system mesohigh oil pocket directly enters low pressure oil pocket by one way valve, and the flow of oil-feed side is increased, and improves the speed that swing arm declines.
As can be seen here, the utility model compared with prior art, has substantive distinguishing features and progress, and its beneficial effect implemented also is apparent.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model detailed description of the invention.
In figure, 1 is fuel tank, and 2 is hydraulic pump, and 3 is the second reversal valve, and 4 is overflow valve, and 5 is accumulator, and 6 is flow control valve, and 7 is master control oil cylinder, and 8 is auxiliary cylinder, and 9 is stop valve, and 10 is the first reversal valve, and 11 is one way valve.
Detailed description of the invention
For the technical characterstic of this programme can be clearly demonstrated, below by a detailed description of the invention, and in conjunction with its accompanying drawing, this programme is set forth.
Can be found out by accompanying drawing, a kind of Hydraulic Excavator's Boom potential energy recovery system, comprise fuel tank 1 and hydraulic pump 2, also comprise two the master control oil cylinders 7 for driving swing arm to move and an auxiliary cylinder 8, described auxiliary cylinder 8 is arranged in parallel with two master control oil cylinders 7 respectively, the cylinder bar of described two master control oil cylinders 7 and the cylinder bar of auxiliary cylinder 8 are synchronized with the movement, the rising of co-controlling swing arm or decline, master control oil cylinder 7 is conventional hydraulic jack, auxiliary cylinder 8 has energy recovery function, and auxiliary cylinder 8 is between two master control oil cylinders 7.Described hydraulic pump 2 is communicated with through the rod chamber of the rod chamber of the second reversal valve 3 and two master control oil cylinders 7, rodless cavity and auxiliary cylinder 8, the rodless cavity of described auxiliary cylinder 8 is directly communicated with by an oil pipe with accumulator 5, does not have control member between auxiliary cylinder 8 and accumulator 5.
The loculus fuel feeding simultaneously of cause two master control oil cylinders 7 and an auxiliary cylinder 8, for ensureing swing arm decrease speed, traffic demand in hydraulic system is just larger, the utility model is provided with one way valve 11 between the high-voltage oil cavity and low pressure oil pocket of described second reversal valve 3, can be implemented in short time oil return side hydraulic oil by one way valve 11 and return to oil-feed side, such oil-feed effluent amount increases, and speed improves, and achieves flow regeneration function.
In the utility model, what described second reversal valve 3 adopted is three six-way transfer valves, P mouth, the N mouth of described second reversal valve 3 are all communicated with hydraulic pump 2, the O mouth of described second reversal valve 3 is communicated with fuel tank 1, the A mouth of described second reversal valve 3 is communicated with the rodless cavity of two master control oil cylinders 7, the B mouth of described second reversal valve 3 is communicated with the rod chamber of two master control oil cylinder 7 rod chambers, auxiliary cylinder 8, the M mouth of described second reversal valve 3 is communicated with flow control valve 6, and the outlet of described flow control valve 6 is communicated with fuel tank 1.
The accumulation of energy process that swing arm declines: when handling swing arm pilot handle, the spool that pilot pressure promotes the second reversal valve 3 is moved to the left, now, the hydraulic oil exported by hydraulic pump 2 is through the P mouth of the second reversal valve 3, B mouth enters into the rod chamber of two master control oil cylinders 7 and the rod chamber of auxiliary cylinder 8, swing arm is declined, the hydraulic oil of the rodless cavity of two master control oil cylinders 7 is through the A mouth of the second reversal valve 3, O mouth flows back into fuel tank 1, the rodless cavity of auxiliary cylinder 8 is communicated with accumulator 5 simultaneously, the hydraulic oil of rodless cavity flows into accumulator 5, make the smaller volume of accumulator 5, pressure raises, thus storage of potential energy.
The exergonic process that swing arm rises:
When handling swing arm pilot handle, the spool that pilot pressure promotes the second reversal valve 3 moves right, now, the hydraulic oil of being published books by hydraulic pump 2 is through the second reversal valve 3P mouth, A mouth enters into the rodless cavity of two master control oil cylinders 7, the hydraulic oil of the rod chamber of two master control oil cylinders 7 is through the B mouth of the second reversal valve 3, O mouth flows back into fuel tank 1, simultaneously, the rodless cavity of auxiliary cylinder 8 is communicated with accumulator 5, because of the pressure effect of accumulator 5 inner high voltage gas, the cylinder bar promoting auxiliary cylinder 8 moves upward, auxiliary workmanship, in accumulator 5, gas volume becomes large, pressure reduces, fault offset.
Use for the first time in order to avoid accumulator 5 or affect the effect of accumulator 5 because the reason build-ups of pressure such as leakage decline, the utility model has the first reversal valve 10 at the outlet of described hydraulic pump 2, and described first reversal valve 10 and the second reversal valve 3 are arranged in parallel.What described first reversal valve 10 adopted is three six-way transfer valves, P mouth, the N mouth of described first reversal valve 10 are all communicated with described hydraulic pump 2, the O mouth of described first reversal valve 10 is communicated with fuel tank 1, the M mouth of described first reversal valve 10 is communicated with described flow control valve 6, and the B mouth of described first reversal valve 10 is communicated with accumulator 5 through stop valve 9.Moved by the spool controlling the first reversal valve 10, what achieve accumulator 5 fills energy and exoergic, concrete is: first open stop valve 9, the spool handling the first reversal valve 10 is moved to the left, the hydraulic oil that hydraulic pump 2 exports is input to the hydraulic oil side of accumulator 5 through the P mouth of the first reversal valve 10, B mouth, and after reaching setting pressure, the spool of the first reversal valve 10 gets back to meta, close stop valve 9, fill and can terminate.Exergonic process in contrast, opens reversal valve, and the spool handling the first reversal valve 10 moves right, and the pressure oil in accumulator 5 flows back into fuel tank 1 through the B mouth of the first reversal valve 10, O mouth, and in accumulator 5, pressure reduces, and after exoergic terminates, closes stop valve 9.
The exit of described hydraulic pump 2 is communicated with overflow valve 4, and the outlet of this overflow valve 4 is communicated with fuel tank 1, for the pressure of control system.What described hydraulic pump 2 adopted is variable pump.What described accumulator 5 adopted is piston accumulator.What described first reversal valve 10 and the second reversal valve 3 all adopted is electro-hydraulic reversing valve.
By reference to the accompanying drawings the detailed description of the invention of utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (8)
1. a Hydraulic Excavator's Boom potential energy recovery system, comprise fuel tank and hydraulic pump, it is characterized in that: also comprise two master control oil cylinders for driving swing arm to move and an auxiliary cylinder, described auxiliary cylinder is arranged in parallel with two master control oil cylinders respectively, the cylinder bar of described two master control oil cylinders and the cylinder bar of auxiliary cylinder are synchronized with the movement, described hydraulic pump is communicated with through the rod chamber of the rod chamber of the second reversal valve and two master control oil cylinders, rodless cavity and auxiliary cylinder, and the rodless cavity of described auxiliary cylinder is communicated with accumulator.
2. Hydraulic Excavator's Boom potential energy recovery system according to claim 1, is characterized in that: be provided with one way valve between the high-voltage oil cavity of described second reversal valve and low pressure oil pocket.
3. Hydraulic Excavator's Boom potential energy recovery system according to claim 2, it is characterized in that: what described second reversal valve adopted is three six-way transfer valves, the P mouth of described second reversal valve, N mouth is all communicated with hydraulic pump, the O mouth of described second reversal valve is communicated with fuel tank, the A mouth of described second reversal valve is communicated with the rodless cavity of two master control oil cylinders, the B mouth of described second reversal valve and two master control cylinder rod chambers, the rod chamber of auxiliary cylinder is communicated with, the M mouth of described second reversal valve and the inlet communication of flow control valve, the outlet of described flow control valve is communicated with fuel tank.
4. Hydraulic Excavator's Boom potential energy recovery system according to claim 3, is characterized in that: the outlet of described hydraulic pump has the first reversal valve having and fill energy and exoergic function.
5. Hydraulic Excavator's Boom potential energy recovery system according to claim 4, it is characterized in that: what described first reversal valve adopted is three six-way transfer valves, P mouth, the N mouth of described first reversal valve are all communicated with described hydraulic pump, the O mouth of described first reversal valve is communicated with fuel tank, the M mouth of described first reversal valve is communicated with described flow control valve, and the B mouth of described first reversal valve is communicated with described accumulator through stop valve.
6., according to the arbitrary described Hydraulic Excavator's Boom potential energy recovery system of claim 1-5, it is characterized in that: the rodless cavity of described auxiliary cylinder is directly communicated with by oil pipe with accumulator.
7., according to the arbitrary described Hydraulic Excavator's Boom potential energy recovery system of claim 1-5, it is characterized in that: the exit of described hydraulic pump is communicated with overflow valve, the outlet of this overflow valve is communicated with fuel tank.
8., according to the arbitrary described Hydraulic Excavator's Boom potential energy recovery system of claim 1-5, it is characterized in that: what described accumulator adopted is piston accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520422859.1U CN205012397U (en) | 2015-06-18 | 2015-06-18 | Hydraulic shovel swing arm potential energy recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520422859.1U CN205012397U (en) | 2015-06-18 | 2015-06-18 | Hydraulic shovel swing arm potential energy recovery system |
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| Publication Number | Publication Date |
|---|---|
| CN205012397U true CN205012397U (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520422859.1U Active CN205012397U (en) | 2015-06-18 | 2015-06-18 | Hydraulic shovel swing arm potential energy recovery system |
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| CN (1) | CN205012397U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104988963A (en) * | 2015-06-18 | 2015-10-21 | 力士德工程机械股份有限公司 | Hydraulic excavator movable arm potential energy recovery system |
| CN110512669A (en) * | 2019-07-24 | 2019-11-29 | 徐州工业职业技术学院 | A kind of excavator swing arm potential energy recovery system based on accumulator |
-
2015
- 2015-06-18 CN CN201520422859.1U patent/CN205012397U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104988963A (en) * | 2015-06-18 | 2015-10-21 | 力士德工程机械股份有限公司 | Hydraulic excavator movable arm potential energy recovery system |
| CN110512669A (en) * | 2019-07-24 | 2019-11-29 | 徐州工业职业技术学院 | A kind of excavator swing arm potential energy recovery system based on accumulator |
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Effective date of registration: 20160621 Granted publication date: 20160203 |
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| RINS | Preservation of patent right or utility model and its discharge | ||
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Date of cancellation: 20171221 Granted publication date: 20160203 |
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Date of cancellation: 20240621 Granted publication date: 20160203 |