CN105220730B - A kind of excavator hydraulic energy recycle device - Google Patents
A kind of excavator hydraulic energy recycle device Download PDFInfo
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- CN105220730B CN105220730B CN201510618981.0A CN201510618981A CN105220730B CN 105220730 B CN105220730 B CN 105220730B CN 201510618981 A CN201510618981 A CN 201510618981A CN 105220730 B CN105220730 B CN 105220730B
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Abstract
The invention discloses a kind of excavator hydraulic energy recycle device, the oil inlet 8 of first choice valve is connected by fluid pressure line with the A mouths and excavator banked direction control valves of rotary motor, and the oil inlet 9 of first choice valve is connected by fluid pressure line with the B mouths and excavator banked direction control valves of rotary motor；The oil-out 12 of first choice valve is connected with the oil inlet 14 of first pressure control valve by fluid pressure line, and the oil-out 13 of first choice valve is connected with the oil inlet 15 of second pressure control valve by fluid pressure line；The oil-out 16 of second pressure control valve is connected with the oil inlet 17 of energy storage device by fluid pressure line, and the oil-out 18 of energy storage device is connected with the oil inlet 19 of the second selector valve by fluid pressure line；The oil-out 22 of second selector valve is connected with the oil inlet 8 of first choice valve by fluid pressure line, and the oil-out 23 of the second selector valve is connected with the oil inlet 9 of first choice valve by fluid pressure line.Transmission link can be reduced, energy utilization efficiency is improved, fuel consumption is reduced.
Description
Technical field
The present invention relates to a kind of energy recycling device, specifically a kind of excavator hydraulic energy recycle device,
Belong to technical field of hydraulic pressure.
Background technology
With developing rapidly for social economy, energy shortage and problem of environmental pollution are on the rise, and each state all will reduction
Energy loss, environmental protection are brought into schedule.Though hydraulic crawler excavator has operating efficiency height, work as a kind of important engineering machinery
Condition adaptability well wait various features, but its oil consumption it is high the problem of under current social background, improved necessity is highlighted all the more.
Technology of Hybrid Electric Vehicle realizes the reduction of energy consumption by way of carrying out recycling to energy, has been successfully applied to
The fields such as automobile are arrived.At present, the application study of Technology of Hybrid Electric Vehicle on board a dredger is one of industrial hot spot, hybrid power skill
Art mainly has oily electricity and two kinds of structure types of fluid, and mainly excavator swing arm potential energy, rotary braking can be reclaimed, pass through electricity
Motivation or hydraulic motor carry out energy recycling, and transmission link is more, less efficient, cost is high.The mixing of the foreign capitals such as little Song brand is dynamic
Power excavator has been introduced to the market, but because additional cost is longer return period, the accreditation of user is not obtained.
The content of the invention
In view of the above-mentioned problems of the prior art, the present invention provides a kind of excavator hydraulic energy recycle device,
Hydraulic crawler excavator rotary braking can be recycled in energy storage device, and the energy stored by retracting device is directly used in revolution
Start.So as to reduce the transmission link that hydraulic crawler excavator rotary braking can be utilized, energy utilization efficiency is improved, reduction fuel oil disappears
Consumption.
To achieve these goals, the technical solution adopted by the present invention is：This kind of excavator hydraulic energy recycles dress
Put, including energy regenerating utilizes control valve group, energy storage device, operation handle and pioneer pump, described energy regenerating utilizes control
Valve group includes first choice valve, the second selector valve, first pressure control valve and second pressure control valve, pioneer pump and operation handle
Connected by fluid pressure line, the control port 24 of operation handle is by controlling pilot control oil of the oil circuit respectively with the second selector valve
Mouth 20 is connected with the pilot control hydraulic fluid port 10 of first choice valve；25 mouthfuls of the control port of operation handle by control oil circuit respectively with
The pilot control hydraulic fluid port 21 of second selector valve is connected with the pilot control hydraulic fluid port 11 of first choice valve；The oil inlet of first choice valve
8 are connected by fluid pressure line with the A mouths and excavator banked direction control valves of rotary motor, and the oil inlet 9 of first choice valve passes through hydraulic tube
Road is connected with the B mouths and excavator banked direction control valves of rotary motor；The oil-out 12 of first choice valve and entering for first pressure control valve
Hydraulic fluid port 14 is connected by fluid pressure line, and the oil-out 13 of first choice valve passes through hydraulic pressure with the oil inlet 15 of second pressure control valve
Pipeline connection；The oil-out 16 of second pressure control valve is connected with the oil inlet 17 of energy storage device by fluid pressure line, energy storage dress
The oil-out 18 put is connected with the oil inlet 19 of the second selector valve by fluid pressure line；The oil-out 22 and first of second selector valve
The oil inlet 8 of selector valve is connected by fluid pressure line, and the oil-out 23 of the second selector valve passes through with the oil inlet 9 of first choice valve
Fluid pressure line is connected.
Further, the setting pressure of described second pressure control valve is higher than the setting pressure of first pressure control valve.
Further, described energy storage device is accumulator.
Further, described energy regenerating is integral type using control valve group.
Compared with prior art, the present invention is using first choice valve, the second selector valve, first pressure control valve and the second pressure
The mode that force control valve is combined, hydraulic crawler excavator rotary braking can be recycled in energy storage device, and retracting device is stored up
The energy deposited directly is used in revolution and started.So as to reduce the transmission link that hydraulic crawler excavator rotary braking can be utilized, improve
Energy utilization efficiency, reduces fuel consumption；Its cost performance is high, and the cost recovery cycle is short.
Brief description of the drawings
Fig. 1 is the hydraulic schematic diagram of the present invention.
In figure：1st, energy regenerating utilizes control valve group, and 2, energy storage device, 3, operation handle, 4, pioneer pump, 5, revolution horse
Reach, 6, excavator banked direction control valves.
Embodiment
The invention will be further described below.
As shown in figure 1, the present invention, which includes energy regenerating, utilizes control valve group 1, energy storage device 2, operation handle 3 and pioneer pump
4, described energy regenerating includes first choice valve, the second selector valve, first pressure control valve and the second pressure using control valve group 1
Force control valve, pioneer pump 4 is connected with operation handle 3 by fluid pressure line, and the control port 24 of operation handle 3 is by controlling oil circuit
Connected respectively with the pilot control hydraulic fluid port 20 of the second selector valve and the pilot control hydraulic fluid port 10 of first choice valve；Operation handle 3
25 mouthfuls of control port is by controlling oil circuit to be controlled respectively with the pilot control hydraulic fluid port 21 of the second selector valve and the guide of first choice valve
Liquefaction mouthful 11 is connected；The oil inlet 8 of first choice valve is connected by the A mouths and excavator banked direction control valves 6 of fluid pressure line and rotary motor 5
Logical, the oil inlet 9 of first choice valve is connected by fluid pressure line with the B mouths and excavator banked direction control valves 6 of rotary motor 5；First choosing
Select the oil-out 12 of valve to connect by fluid pressure line with the oil inlet 14 of first pressure control valve, the oil-out 13 of first choice valve
Connected with the oil inlet 15 of second pressure control valve by fluid pressure line；The oil-out 16 and energy storage device of second pressure control valve
2 oil inlet 17 is connected by fluid pressure line, and the oil inlet 19 of the selector valve of oil-out 18 and second of energy storage device 2 passes through hydraulic pressure
Pipeline connection；The oil-out 22 of second selector valve is connected with the oil inlet 8 of first choice valve by fluid pressure line, the second selector valve
Oil-out 23 connected with the oil inlet 9 of first choice valve by fluid pressure line.
Further, the setting pressure of described second pressure control valve is higher than the setting pressure of first pressure control valve；Adopt
With this structure in use, it can make that excavator rotary braking angle is smaller, performance is more preferable.
Further, described energy storage device 2 is accumulator.
Further, described energy regenerating is integral type using control valve group.
The course of work：Pioneer pump 4 is that operation handle 3 provides pressure oil-source, the control rotary motor 5 of excavator banked direction control valves 6
Rotation, so that control excavator to get on the bus or turn right, when the hydraulic fluid port A of rotary motor 5 enters hydraulic oil, hydraulic fluid port B oil returns, excavator
Get on the bus left-hand rotation, when the hydraulic fluid port B of rotary motor 5 enters hydraulic oil, hydraulic fluid port A oil returns, excavator is got on the bus right-hand rotation, the control of operation handle 3
The control excavator of hydraulic fluid port 24 is got on the bus left-hands rotation, and the control excavator of control port 25 of operation handle 3 is got on the bus right-hand rotation, energy regenerating utilization
Control valve group 1 be used to controlling excavator get on the bus Brake energy recovery and to the energy utilization of energy storage device 2 to drive rotary motor 5
Start；When excavator is without revolution operation, first choice valve makes oil inlet 8,9 be connected with oil-out 13；When the left revolution of excavator
When, the pressure signal of control port 24 of operation handle 3 makes first choice valve work, make the oil inlet 8 of first choice valve with it is fuel-displaced
Mouthfuls 12 connect, the high-voltage oil liquid for making excavator banked direction control valves 6 supply the A mouths of rotary motor 5 flow through first choice valve oil inlet 8,
Oil-out 12 and the oil inlet of first pressure control valve 14, so as to set pressure by first pressure control valve to control to turn round horse
Up to 5 staring torque, meanwhile, the control port 24 of operation handle 3 is connected with the pilot control hydraulic fluid port 20 of the second selector valve makes
Two selector valves work, make the fluid of energy storage device 2 flowed through by oil-out 18 oil inlet 19 of second selector valve, oil-out 22 and
The high pressure hydraulic fluid port A of rotary motor 5, so as to drive rotary motor 5, while reducing multi-channel control valve opening, reduces engine load,
Save excavator；When excavator stops left revolution, excavator banked direction control valves 6 stops to the fuel feeding of rotary motor 5, due to excavator
Upper-part rotation inertia, the low-pressure side hydraulic fluid port B of rotary motor 5 becomes high pressure, and high-pressure side hydraulic fluid port A becomes low pressure, while the control of operation handle 3
24 pressure signals of liquefaction mouthful disappear, and first choice valve, the second selector valve is stopped, flow through rotary motor hydraulic fluid port B height
Force feed liquid flows through the oil inlet 9 of first choice valve, oil-out 13, oil inlet 15, oil-out 16 and the storage of second pressure control valve
The oil inlet 17 of energy device 2, so that excavator upper-part rotation braking energy is stored in energy storage device 2.
When excavator right-hand rotation, the pressure signal of control port 25 of operation handle 3 makes first choice valve work, and makes first
The oil inlet 9 of selector valve is connected with oil-out 12, flows through the high-voltage oil liquid that excavator banked direction control valves 6 supplies the B mouths of rotary motor 5
The oil-out 14 of the oil inlet 9 of first choice valve, oil-out 12 and first pressure control valve, so as to pass through first pressure control valve
Pressure is set to control the staring torque of rotary motor 5, meanwhile, the control of the selector valve of control port 25 and second of operation handle 3
Liquefaction mouthful 21, which is connected, makes the second selector valve work, and the fluid of energy storage device 2 is flowed through entering for the second selector valve by oil-out 18
The high pressure hydraulic fluid port B of hydraulic fluid port 19, oil-out 23 and rotary motor 5, so as to drive rotary motor 5, is opened while reducing multi-way control valve
Degree, reduces engine load, saves excavator；When excavator stops right-hand rotation, excavator banked direction control valves 6 stops to revolution horse
Up to 5 fuel feeding, due to excavator upper-part rotation inertia, the low-pressure side hydraulic fluid port A of rotary motor 5 becomes high pressure, high-pressure side hydraulic fluid port B step-downs
Pressure, while the pressure signal of control port 25 of operation handle 3 disappears, makes first choice valve, the second selector valve be stopped, makes stream
High-voltage oil liquid through rotary motor hydraulic fluid port A flows through the oil inlet 8 of first choice valve, oil-out 13, and second pressure control valve is entered
The oil inlet 17 of hydraulic fluid port 15, oil-out 16 and energy storage device 2, so that excavator upper-part rotation braking energy is stored in into energy storage dress
Put in 2.
Claims (4)
1. a kind of excavator hydraulic energy recycle device, it is characterised in that including energy regenerating using control valve group (1),
Energy storage device (2), operation handle (3) and pioneer pump (4), described energy regenerating include first choice using control valve group (1)
Valve, the second selector valve, first pressure control valve and second pressure control valve, pioneer pump (4) pass through hydraulic tube with operation handle (3)
Road is connected, the control port 24 of operation handle (3) by control oil circuit respectively with the pilot control hydraulic fluid port 20 of the second selector valve and
The pilot control hydraulic fluid port 10 of first choice valve is connected；25 mouthfuls of the control port of operation handle (3) is by controlling oil circuit respectively with
The pilot control hydraulic fluid port 21 of two selector valves is connected with the pilot control hydraulic fluid port 11 of first choice valve；The oil inlet 8 of first choice valve
Connected by fluid pressure line with the A mouths and excavator banked direction control valves (6) of rotary motor (5), the oil inlet 9 of first choice valve passes through liquid
Pressure pipe road is connected with the B mouths and excavator banked direction control valves (6) of rotary motor (5)；The oil-out 12 and first pressure of first choice valve
The oil inlet 14 of control valve is connected by fluid pressure line, the oil-out 13 of first choice valve and the oil inlet of second pressure control valve
15 are connected by fluid pressure line；The oil-out 16 of second pressure control valve passes through hydraulic tube with the oil inlet 17 of energy storage device (2)
Road is connected, and the oil-out 18 of energy storage device (2) is connected with the oil inlet 19 of the second selector valve by fluid pressure line；Second selector valve
Oil-out 22 connected with the oil inlet 8 of first choice valve by fluid pressure line, the oil-out 23 and first of the second selector valve is selected
The oil inlet 9 for selecting valve is connected by fluid pressure line.
2. a kind of excavator hydraulic energy recycle device according to claim 1, it is characterised in that described second
The setting pressure of pressure-control valve is higher than the setting pressure of first pressure control valve.
3. a kind of excavator hydraulic energy recycle device according to claim 1 or 2, it is characterised in that described
Energy storage device (2) is accumulator.
4. a kind of excavator hydraulic energy recycle device according to claim 1 or 2, it is characterised in that described
Energy regenerating is integral type using control valve group (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510618981.0A CN105220730B (en) | 2015-09-24 | 2015-09-24 | A kind of excavator hydraulic energy recycle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510618981.0A CN105220730B (en) | 2015-09-24 | 2015-09-24 | A kind of excavator hydraulic energy recycle device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105220730A CN105220730A (en) | 2016-01-06 |
| CN105220730B true CN105220730B (en) | 2017-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510618981.0A Active CN105220730B (en) | 2015-09-24 | 2015-09-24 | A kind of excavator hydraulic energy recycle device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113152575B (en) * | 2021-05-19 | 2022-11-25 | 徐州徐工挖掘机械有限公司 | Hydraulic bridge circuit based set pilot positive flow control system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101736771A (en) * | 2010-02-05 | 2010-06-16 | 浙江大学 | Rotary decelerating and braking energy recovery system of hydraulic excavator |
| CN102979133A (en) * | 2012-11-26 | 2013-03-20 | 柳州柳工挖掘机有限公司 | Rotary brake energy recycling device of hydraulic excavator |
| CN104265717A (en) * | 2014-09-12 | 2015-01-07 | 柳州柳工挖掘机有限公司 | Hydraulic system for recycling rotary braking energy and device |
| CN205153023U (en) * | 2015-09-24 | 2016-04-13 | 徐州徐工挖掘机械有限公司 | Excavator hydraulic pressure energy recuperation utilizes device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009133442A (en) * | 2007-11-30 | 2009-06-18 | Caterpillar Japan Ltd | Device and method for controlling hydraulic cylinder |
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2015
- 2015-09-24 CN CN201510618981.0A patent/CN105220730B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101736771A (en) * | 2010-02-05 | 2010-06-16 | 浙江大学 | Rotary decelerating and braking energy recovery system of hydraulic excavator |
| CN102979133A (en) * | 2012-11-26 | 2013-03-20 | 柳州柳工挖掘机有限公司 | Rotary brake energy recycling device of hydraulic excavator |
| CN104265717A (en) * | 2014-09-12 | 2015-01-07 | 柳州柳工挖掘机有限公司 | Hydraulic system for recycling rotary braking energy and device |
| CN205153023U (en) * | 2015-09-24 | 2016-04-13 | 徐州徐工挖掘机械有限公司 | Excavator hydraulic pressure energy recuperation utilizes device |
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| CN105220730A (en) | 2016-01-06 |
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