CN104060643A - Hydraulic energy storage and conservation device of excavating machine - Google Patents
Hydraulic energy storage and conservation device of excavating machine Download PDFInfo
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- CN104060643A CN104060643A CN201410091514.2A CN201410091514A CN104060643A CN 104060643 A CN104060643 A CN 104060643A CN 201410091514 A CN201410091514 A CN 201410091514A CN 104060643 A CN104060643 A CN 104060643A
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Abstract
Aiming at disadvantages of the prior art, a hydraulic energy storage and conservation device of an excavating machine stores and conserves energy utilizing oil pressure, air pressure and the elastic transmission principle. Spare hydraulic oil (hydraulic system pressure is larger than air cylinder gas pressure) can be automatically transported into an energy storage oil cylinder (1) to drive an oil cylinder piston (3), link an air cylinder (4), and compress air cylinder gas, when an excavating machine is in a certain state, for instance: immobility, slow excavation, monotonous movement or instant pauses; but a motor is working under high power; exported hydraulic oil cannot or cannot entirely be transported into a hydraulic cylinder. When the hydraulic system pressure reduces and more pressure is needed (hydraulic system pressure is smaller than air cylinder gas pressure), the air cylinder piston links the oil cylinder piston, and the hydraulic pressure oil is pushed out and transported into a working system, so that the hydraulic pressure oil is supplemented.
Description
Technical field
The invention belongs to field of mechanical technique, specifically relate to excavator hydraulic accumulation energy energy saver.
Background technology
Hydraulic crawler excavator is mainly made up of parts such as motor, hydraulic system, equipment, running gear and electrical controls.Hydraulic system is made up of hydraulic pump, control valve, hydraulic cylinder, hydraulic motor, pipeline, fuel tank etc.Equipment is the device that directly completes mining task.Excavator has the hydraulic cylinder of swing arm, dipper, three parts of scraper bowl, and these are all by reversal valve control fuel feeding.Hydraulic oil is out assigned to above each executive component through reversal valve from hydraulic pump, the device action that pushes the work forward, thus complete various operations.Working connection is established overflow valve, and pressure exceedes limit value overflow valve will be opened, and hydraulic oil is directly got back to fuel tank.
Generally in the time that digging machine is started working, its motor must reach enough power outputs, normally carrying out of guarantee excavator action, but in the time that excavator moves in certain state, as: dig motionless, excavate slowly, move single or moment and pause, its motor is in high-power state, at this moment the hydraulic oil of output can not or can not all enter hydraulic cylinder, at this moment unnecessary hydraulic oil will pass through overflow valve hydraulic return fuel tank, thereby has caused the waste of the energy.
The present invention is exactly the deficiency for above background technology, utilize oil, atmospheric pressure and elastic transmission principle, in the time that excavator moves in certain state, as: dig motionless, excavate slowly, move single or moment while pausing, and do not enter the hydraulic oil of hydraulic cylinder, when by working connection, enter energy storage oil cylinder, promote energy storage oil cylinder piston, promote cylinder piston compression cylinder gas or spring simultaneously.In the time that hydraulic system pressure is greater than cylinder or spring pressure, hydraulic oil just enters energy storage oil cylinder by working connection, promotes piston, and oil cylinder piston promotes cylinder piston compression cylinder gas or spring energy-storage; In the time that hydraulic system pressure is less than cylinder pressure, cylinder pressure or spring promote piston automatically, and interlock oil cylinder piston, makes hydraulic oil enter hydraulic system, carry out supplementing of energy, so repeatedly, thereby reach the effect of energy-storage economical.Adopt the present invention can make excavator capable of saving fuel oil 20～40%.
Summary of the invention
The present invention is exactly the deficiency for above background technology, utilize oil, atmospheric pressure and elastic transmission principle, by excavator action when certain state, as: dig motionless, excavate slowly, move single or moment while pausing, for the hydraulic oil that does not enter hydraulic cylinder, enter energy storage oil cylinder by working connection, promote oil cylinder piston, promote cylinder piston compression cylinder gas or spring simultaneously.In the time that hydraulic system pressure is greater than cylinder or spring pressure, hydraulic oil just enters oil cylinder automatically by working connection, and oil cylinder piston promotes cylinder piston compression cylinder gas or spring energy-storage; In the time that hydraulic system pressure is less than cylinder or spring pressure, cylinder or spring pressure promote piston automatically, and interlock oil cylinder piston, makes hydraulic oil enter hydraulic system, carry out supplementing of energy, so repeatedly, thereby reach the effect of energy-storage economical.
For achieving the above object, the technical solution used in the present invention is:
1, an excavator hydraulic accumulation energy energy saver, comprising: energy storage oil cylinder (1), cylinder (2), oil cylinder piston (3), cylinder piston (4), piston rod (5), gasholder (6), tonifying Qi bottle (7), Pnenmatic automatic switch (8) composition.
2, a kind of excavator hydraulic accumulation energy energy saver, also can replace cylinder energy storage with high pressure multilayer spring, comprise: energy storage oil cylinder (1), spring housing (2), oil cylinder piston (3), spring solid pressure part (4), piston rod (5), multilayer spring (6), etc. composition.
3, an excavator hydraulic accumulation energy energy saver, oil cylinder and cylinder described in its feature, its length, for equating, utilizes piston rod to connect oil cylinder piston and cylinder piston, and utilizes oil, atmospheric pressure to promote piston to move back and forth;
4, an excavator hydraulic accumulation energy energy saver, the ratio of described oil, cylinder piston area, calculates gained according to pressure formula (pressure=pressure ÷ area), and its pressure producing equates.
5, an excavator hydraulic accumulation energy energy saver, described gasholder is to store the gas with certain pressure intensity;
6, an excavator hydraulic accumulation energy energy saver, described Pnenmatic automatic switch, is mainly the pressure of setting gasholder, in the time that gasholder does not reach setting pressure, its tonifying Qi bottle is supplemented gas automatically, to keep enough pressure.
7, an excavator hydraulic accumulation energy energy saver, described high pressure spring, can be single or multiple lift according to suppressing strength, is mainly used in the Pneumatic pressure power that replaces cylinder to produce, bomb spring arrangement can use, also can be used alone in conjunction with cylinder.
Brief description of the drawings
Fig. 1 is air pressure energy storage schematic diagram, promote cylinder piston by oil cylinder piston, Compressed Gas and energy storage, this device comprises energy storage oil cylinder (1), cylinder (2), oil cylinder piston (3), cylinder piston (4), piston rod (5), gasholder (6), tonifying Qi bottle (7), Pnenmatic automatic switch (8) composition.
Fig. 2 is spring-compressed energy storage schematic diagram, promote and Compress Spring and energy storage by oil cylinder piston, this device comprises energy storage oil cylinder (1), spring housing (2), oil cylinder piston (3), spring solid pressure part (4), piston rod (5), spring (6) composition.
Fig. 3 be air pressure, spring in conjunction with energy storage schematic diagram, promote simultaneously Compress Spring and the energy storage of cylinder piston Compressed Gas by oil cylinder piston.This device comprises oil cylinder (1), cylinder (2), oil cylinder piston (3), cylinder piston (4), piston rod (5), spring (6) composition.
Detailed description of the invention
When operating pressure reaches 343kg/cm
2time, energy storage oil cylinder oil storage maximum, when operating pressure equals 340kg/cm
2time, energy storage oil cylinder oil storage minimum.
Excavator, for realizing secondary set pressure, is all established overflow valve at the branch road of working connection and each oil cylinder, and pressure exceedes limit value will be opened, the direct oil sump tank of fluid.So system pressure remains within the specific limits.Because energy storage cylinder block is different with cylinder bore, its pressure is also different, therefore taking pressure as unit, further set forth its operating principle (pressure=pressure/lifting surface area P=F/S).
As: opening the required pressure of overflow valve is 343kg/cm
2(operating pressure is 343kg/cm to the maximum
2), and this energy storage oil cylinder is 343kg/cm to the maximum because of the pressure that cylinder produces
2, minimum is 340kg/cm
2(operating pressure scope is 340kg/cm
2～343kg/cm
2), the hydraulic oil pressure producing when hydraulic pump exceedes 340kg/cm
2time, hydraulic accumulation energy oil cylinder is started working (oil storage), and in the time that energy storage is maximum, its maximum pressure is 343kg/cm
2time, wherein when operating pressure equals 340kg/cm
2time, engine output is maximum, when operating pressure reaches 343kg/cm
2time, engine output is minimum, throttle regulates automatically.
Below in conjunction with accompanying drawing, the invention will be further described
As shown in Fig. 1 air pressure energy storage schematic diagram, this device comprises energy storage oil cylinder (1), cylinder (2), oil cylinder piston (3), cylinder piston (4), piston rod (5), gasholder (6), tonifying Qi bottle (7), Pnenmatic automatic switch (8) composition.
This device is achieved in the following ways.
First gasholder (6) inflated and reached enough pressure, connect again tonifying Qi bottle (7) (while preventing that gasholder air pressure from reducing, can pass through Pnenmatic automatic switch (8) and supplement air pressure), in the time that excavator moves in certain state, as: dig motionless, excavate slowly, move single or moment and pause, but motor is still in high-power state, at this moment the hydraulic oil of output can not or can not all enter hydraulic cylinder, at this moment unnecessary hydraulic oil (hydraulic system pressure > cylinder gas pressure) will automatically enter energy storage oil cylinder (1) and promote oil cylinder piston (3) linkage air cylinder piston (4) compression cylinder gas, in the time that hydraulic system pressure reduces to need pressure (hydraulic system pressure < cylinder gas pressure), cylinder piston interlock oil cylinder piston, hydraulic oil release is entered to work system, thereby supplement hydraulic pressure oil mass.
As shown in Fig. 2 spring-compressed energy storage schematic diagram, this device comprises energy storage oil cylinder (1), spring housing (2), oil cylinder piston (3), spring solid pressure part (4), piston rod (5), spring (6) composition.
This device is achieved in the following ways.
In the time that excavator moves in certain state, as: dig motionless, excavate slowly, move single or moment and pause, but motor is still in high-power state, at this moment the hydraulic oil of output can not or can not all enter hydraulic cylinder, at this moment unnecessary hydraulic oil (hydraulic system pressure > cylinder gas pressure) will enter energy storage oil cylinder (1) automatically, promote oil cylinder piston (3), by piston rod (5), Compress Spring (6), in the time that hydraulic system pressure reduces to need pressure (hydraulic system pressure < spring pressure), compressed spring promotes oil cylinder piston, hydraulic oil is released and entered work system, thereby supplement hydraulic pressure oil mass.
If Fig. 3 air pressure, spring are in conjunction with as shown in energy storage schematic diagram, this device comprises oil cylinder (1), cylinder (2), oil cylinder piston (3), cylinder piston (4), piston rod (5), spring (6) composition.
This device is achieved in the following ways.
In the time that excavator moves in certain state, as: dig motionless, excavate slowly, move single or or moment pause, but motor is in high-power state, at this moment the hydraulic oil of output can not or can not all enter hydraulic cylinder, at this moment unnecessary hydraulic oil (hydraulic system pressure > cylinder gas, spring pressure) will automatically enter energy storage oil cylinder (1), promote oil cylinder piston (3), linkage air cylinder piston (4) compression cylinder gas, spring, (hydraulic system pressure < cylinder gas in the time that hydraulic system pressure reduces to need pressure, spring pressure), cylinder piston interlock oil cylinder piston, hydraulic oil is released and entered work system, thereby supplement hydraulic pressure oil mass.
Claims (7)
1. an excavator hydraulic accumulation energy energy saver, comprises oil cylinder (1), cylinder (2), oil cylinder piston (3), cylinder piston (4), piston rod (5), gasholder (6), tonifying Qi bottle (7), air pressure balance automatic switch (8), composition.
2. an excavator hydraulic accumulation energy energy saver, also can replace cylinder with high pressure spring, comprise oil cylinder (1), spring housing (2), oil cylinder piston (3), spring solid pressure part (4), piston rod (5), multilayer spring (6) composition.
3. according to claim 1, a kind of excavator hydraulic accumulation energy energy saver, oil cylinder and cylinder described in its feature, its length, for equating, utilizes piston rod to connect oil cylinder piston and cylinder piston, and utilizes oil, atmospheric pressure to promote piston to move back and forth.
4. according to claim 1, a kind of excavator hydraulic accumulation energy energy saver, the ratio of described oil, cylinder block diameter area and oil, cylinder piston diameter area, calculates gained according to pressure formula (pressure=pressure ÷ area), and its pressure producing equates.
5. according to claim 1, a kind of excavator hydraulic accumulation energy energy saver, Compressed Gas and the supplementary Compressed Gas of tonifying Qi bottle that described gasholder produces for storage cylinder.
6. according to claim 1, a kind of excavator hydraulic accumulation energy energy saver, described air pressure balance automatic switch, is mainly the pressure of setting gasholder, in the time that gasholder does not reach setting pressure, its tonifying Qi bottle is supplemented gas automatically, to keep enough pressure.
7. according to claim 2, a kind of excavator hydraulic accumulation energy energy saver, described high pressure spring, can be single or multiple lift according to suppressing strength, be mainly used in the Pneumatic pressure power that replaces cylinder to produce, bomb spring arrangement can use, also can be used alone in conjunction with cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410091514.2A CN104060643A (en) | 2014-03-06 | 2014-03-06 | Hydraulic energy storage and conservation device of excavating machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410091514.2A CN104060643A (en) | 2014-03-06 | 2014-03-06 | Hydraulic energy storage and conservation device of excavating machine |
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| Publication Number | Publication Date |
|---|---|
| CN104060643A true CN104060643A (en) | 2014-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410091514.2A Pending CN104060643A (en) | 2014-03-06 | 2014-03-06 | Hydraulic energy storage and conservation device of excavating machine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106120915A (en) * | 2016-08-24 | 2016-11-16 | 崔建波 | Excavator |
| CN106286430A (en) * | 2016-10-17 | 2017-01-04 | 山河智能装备股份有限公司 | A kind of piston accumulator |
| CN108222114A (en) * | 2018-03-12 | 2018-06-29 | 徐州徐工挖掘机械有限公司 | A kind of hybrid excavator energy accumulating device |
| CN110630582A (en) * | 2019-09-10 | 2019-12-31 | 长沙理工大学 | Cylinder energy storage type hydraulic cylinder |
| CN113996413A (en) * | 2020-07-28 | 2022-02-01 | 阮正富 | Bearing driving device and method |
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| CN1326050A (en) * | 2000-05-31 | 2001-12-12 | 刘海生 | Linear reciprocating compressor |
| US20060144768A1 (en) * | 2004-12-30 | 2006-07-06 | Harris James J | Filtrate immersed activation assembly for disk filters |
| CN202577437U (en) * | 2012-04-19 | 2012-12-05 | 华南理工大学 | Rotary energy-saving system of hydraulic excavator |
| CN203462514U (en) * | 2013-09-13 | 2014-03-05 | 泉州市洛江区交通汽车修配厂 | Novel power-assisted system for excavator or loader |
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2014
- 2014-03-06 CN CN201410091514.2A patent/CN104060643A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326050A (en) * | 2000-05-31 | 2001-12-12 | 刘海生 | Linear reciprocating compressor |
| US20060144768A1 (en) * | 2004-12-30 | 2006-07-06 | Harris James J | Filtrate immersed activation assembly for disk filters |
| CN202577437U (en) * | 2012-04-19 | 2012-12-05 | 华南理工大学 | Rotary energy-saving system of hydraulic excavator |
| CN203462514U (en) * | 2013-09-13 | 2014-03-05 | 泉州市洛江区交通汽车修配厂 | Novel power-assisted system for excavator or loader |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106120915A (en) * | 2016-08-24 | 2016-11-16 | 崔建波 | Excavator |
| CN106286430A (en) * | 2016-10-17 | 2017-01-04 | 山河智能装备股份有限公司 | A kind of piston accumulator |
| CN108222114A (en) * | 2018-03-12 | 2018-06-29 | 徐州徐工挖掘机械有限公司 | A kind of hybrid excavator energy accumulating device |
| CN110630582A (en) * | 2019-09-10 | 2019-12-31 | 长沙理工大学 | Cylinder energy storage type hydraulic cylinder |
| CN113996413A (en) * | 2020-07-28 | 2022-02-01 | 阮正富 | Bearing driving device and method |
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Application publication date: 20140924 |