CN108678051A - Excavator boom control system and excavator boom control method - Google Patents
Excavator boom control system and excavator boom control method Download PDFInfo
- Publication number
- CN108678051A CN108678051A CN201810717275.5A CN201810717275A CN108678051A CN 108678051 A CN108678051 A CN 108678051A CN 201810717275 A CN201810717275 A CN 201810717275A CN 108678051 A CN108678051 A CN 108678051A
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- Prior art keywords
- oil
- valve
- arm cylinder
- bucket arm
- connect
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000003921 oil Substances 0.000 claims abstract description 139
- 239000000446 fuel Substances 0.000 claims abstract description 36
- 238000009412 basement excavation Methods 0.000 claims abstract description 16
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 13
- 230000009471 action Effects 0.000 claims description 10
- 239000002828 fuel tank Substances 0.000 claims description 9
- 239000010727 cylinder oil Substances 0.000 abstract 1
- 239000013589 supplement Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
Abstract
Excavator boom control system and excavator boom control method provided by the invention, are related to excavator technical field.The excavator boom control system includes main pump, pioneer pump, reversal valve, guide's hand valve and bucket arm cylinder.Main pump is connect with reversal valve, and reversal valve is connect with bucket arm cylinder.Pioneer pump is connect with guide's hand valve, and guide's hand valve is connect with reversal valve, and control reversal valve is opened, and main pump is through reversal valve to bucket arm cylinder fuel feeding.Pioneer pump is connect with bucket arm cylinder, and the first check valve is equipped in the oil circuit between pioneer pump and bucket arm cylinder, and hydraulic oil is made uniaxially can only to flow into bucket arm cylinder from pioneer pump.The phenomenon that excavator boom control system makes full use of the power surplus of guide's oil circuit to supplement to dipper excavation, not only prevented bucket rod suction, but also dipper excavation speed is improved, further improve the operability and comfort of excavator.
Description
Technical field
The present invention relates to excavator technical fields, in particular to a kind of excavator boom control system and excavator
Dipper control method.
Background technology
The engineering machinery such as excavator are widely used in engineering fields such as building, water conservancies, wherein hydraulic crawler excavator with its from
Body advantage occupies the leading position in excavator.Most common action, performance pair when excavator works when dipper excavation acts
Excavator working efficiency and operability have vital influence.
It is reduced in engine speed, after main pump fuel supply flow rate reduces, since dipper dead weight forces dipper decrease speed to be more than
Big chamber oil inlet quantity also will appear the phenomenon that being emptied, to bucket when big chamber emptying phenomenon or dipper being caused to excavate execution composite move
Rod oil cylinder causes to damage.
Invention content
In view of this, the purpose of the present invention includes providing a kind of excavator boom control system, in pioneer pump and dipper oil
One oil circuit is set between cylinder, and the first check valve is set on the oil circuit, makes full use of the flow more than needed of middle pioneer pump, it is auxiliary
It helps as bucket arm cylinder fuel feeding.I.e. on the basis of main pump is bucket arm cylinder fuel feeding, increases pioneer pump to bucket arm cylinder fuel feeding, avoid
The phenomenon that bucket arm cylinder is emptied improves the excavation speed and operating comfort of dipper.
The purpose of the present invention further includes providing a kind of excavator boom control method, and control reversal valve is opened, and makes the main pump be
Bucket arm cylinder fuel feeding；It controls switching valve to open, makes pioneer pump to bucket arm cylinder fuel feeding, prevent bucket arm cylinder from generating suction for shortage of oil
Empty phenomenon improves the speed and operating comfort of dipper execution action.
The present invention improves its technical problem using technical solution below to realize.
A kind of excavator boom control system provided by the invention, including main pump, pioneer pump, reversal valve, guide's hand valve and
Bucket arm cylinder.
The main pump is connect with the reversal valve, and the reversal valve is connect with the bucket arm cylinder.
The pioneer pump is connect with guide's hand valve, and guide's hand valve is connect with the reversal valve, is changed described in control
It is opened to valve, the main pump is through the reversal valve to the bucket arm cylinder fuel feeding.
The pioneer pump is connect with the bucket arm cylinder, is equipped in the oil circuit between the pioneer pump and the bucket arm cylinder
First check valve makes hydraulic oil uniaxially can only flow into the bucket arm cylinder from the pioneer pump.
Further, further include switching valve, the switching valve is set to the oil between the pioneer pump and the bucket arm cylinder
On the road, the switching valve is connect with guide's hand valve.
Further, the switching valve includes the first oil inlet and the first oil outlet, first oil inlet and the elder generation
Pump connection is led, first oil outlet is connect with first check valve.
Further, the bucket arm cylinder includes the first oil pocket and the second oil pocket, and first oil pocket is rodless cavity, described
Second oil pocket is rod chamber；The pioneer pump is connect through first check valve with first oil pocket.
Further, the reversal valve includes the second oil inlet, the second oil outlet, third oil inlet and third oil outlet,
Second oil inlet is connect with the main pump, and second oil outlet is connect with first oil pocket, the third oil inlet
It is connect with second oil pocket, the third oil outlet is connect with fuel tank.
Further, the second check valve is equipped in the reversal valve, second check valve is set to the third oil inlet
Between second oil outlet, the hydraulic oil entered from the third oil inlet a, part flows back through the third oil outlet
To the fuel tank, another part flow to first oil pocket through second check valve, second oil outlet.
Further, further include pressure-control valve, the pressure-control valve is connect with the pioneer pump, by the pioneer pump
Pressure adjust in preset pressure threshold value.
A kind of excavator boom control method provided by the invention, including：
Reversal valve is opened, makes main pump to bucket arm cylinder fuel feeding, dipper executes excavation action.
Switching valve is opened, makes pioneer pump to the bucket arm cylinder fuel feeding, prevents the bucket arm cylinder for shortage of oil.
Further, further include：The pressure for controlling the pioneer pump, when the pressure of the bucket arm cylinder is less than the guide
The pressure of pump, opens the switching valve, and the pioneer pump is the bucket arm cylinder fuel feeding.
Further, while the reversal valve and the switching valve are opened, the main pump and the pioneer pump are simultaneously to institute
State bucket arm cylinder fuel feeding.
Excavator boom control system and excavator boom control method provided by the invention have the following aspects
Advantageous effect：
An oil circuit is arranged in excavator boom control system provided by the invention between pioneer pump and bucket arm cylinder, and
And the first check valve is set on the oil circuit, the flow more than needed of middle pioneer pump is made full use of, is assisted as bucket arm cylinder fuel feeding.Exist
On the basis of main pump is bucket arm cylinder fuel feeding, the phenomenon that increasing pioneer pump to bucket arm cylinder fuel feeding, bucket arm cylinder is avoided to be emptied, carry
The excavation speed and operating comfort of high dipper.
Excavator boom control method provided by the invention, control reversal valve are opened, and it is bucket arm cylinder fuel feeding to make main pump；Control
Switching valve processed is opened, and is made pioneer pump to bucket arm cylinder fuel feeding, is prevented bucket arm cylinder from generating emptying phenomenon for shortage of oil, improves dipper
The speed and operating comfort of execution action.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the control principle drawing for the excavator boom control system that the specific embodiment of the invention provides；
Fig. 2 is the structural schematic diagram of the switching valve for the excavator boom control system that the specific embodiment of the invention provides；
Fig. 3 is the structural schematic diagram of the reversal valve for the excavator boom control system that the specific embodiment of the invention provides；
Fig. 4 is the company of the pioneer pump and pressure-control valve for the excavator boom control system that the specific embodiment of the invention provides
Connect structural schematic diagram.
Icon：100- excavator boom control systems；110- main pumps；120- reversal valves；The second check valves of 121-；130- is first
Lead pump；131- pressure-control valves；140- guide's hand valve；150- switching valves；The first check valves of 151-；160- bucket arm cylinders；161-
First oil pocket；The second oil pockets of 163-；170- fuel tanks.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without creative efforts belongs to the model that the present invention protects
It encloses.
In the description of the present invention, it is to be understood that, the orientation or positional relationship of the instructions such as term "upper", "lower" is base
In orientation or positional relationship shown in the drawings, or product of the present invention using when the orientation or positional relationship usually put, or
Person is the orientation or positional relationship that those skilled in the art usually understand, is merely for convenience of description of the present invention and simplification of the description,
It does not indicate or imply the indicated equipment or element must have a particular orientation, with specific azimuth configuration and operation, because
This is not considered as limiting the invention.
" first ", " second " etc. of the present invention, is only used to distinguish between description, has no special meaning.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；Can be
It is connected directly, it can also be indirectly connected through an intermediary.It for the ordinary skill in the art, can be with concrete condition
Understand the concrete meaning of above-mentioned term in the present invention.
First embodiment
Fig. 1 is the control principle drawing for the excavator boom control system 100 that the specific embodiment of the invention provides, and please refers to figure
1。
Excavator boom control system 100 provided in this embodiment, including main pump 110, pioneer pump 130, reversal valve 120,
Switching valve 150, guide's hand valve 140, pressure-control valve 131 and bucket arm cylinder 160.
Main pump 110 is connect with reversal valve 120, and reversal valve 120 is connect with bucket arm cylinder 160, and main pump 110 can be through reversal valve
120 provide hydraulic oil to bucket arm cylinder 160, and driving dipper executes excavation action.
Pioneer pump 130 is connect with guide's hand valve 140, and guide's hand valve 140 is connect with reversal valve 120, and control reversal valve 120 is opened
It opens, main pump 110 is through reversal valve 120 to 160 fuel feeding of bucket arm cylinder.
Pioneer pump 130 is connect with bucket arm cylinder 160, and first is equipped in the oil circuit between pioneer pump 130 and bucket arm cylinder 160
Check valve 151 and switching valve 150, the first check valve 151 are set between switching valve 150 and bucket arm cylinder 160, make hydraulic oil can only
Uniaxially bucket arm cylinder 160 is flowed into from pioneer pump 130.
Main pump 110 is connect with pioneer pump 130, optionally, main pump 110 and pioneer pump 130 synchronize walk around it is dynamic.Switching valve 150
On oil circuit between pioneer pump 130 and bucket arm cylinder 160, switching valve 150 is connect with guide's hand valve 140.Switching valve 150 is opened
Qi Hou, pioneer pump 130 can prevent bucket arm cylinder 160 to be emptied through switching valve 150 to 160 repairing of bucket arm cylinder.Specifically, it cuts
The control signal for changing valve 150 is taken from the pilot signal of dipper excavation.
Fig. 2 is the structural representation of the switching valve 150 for the excavator boom control system 100 that the specific embodiment of the invention provides
Figure, please refers to Fig. 2.
Specifically, switching valve 150 includes that the first oil inlet C and the first oil outlet D, the first oil inlet C connects with pioneer pump 130
It connects, the first oil outlet D is connect with the first check valve 151.
Bucket arm cylinder 160 include the first oil pocket 161 and the second oil pocket 163, the first oil pocket 161 be rodless cavity, i.e., big oil pocket,
Second oil pocket 163 is rod chamber, i.e. small oil cavity.Pioneer pump 130 is connect through the first check valve 151 with the first oil pocket 161.
Fig. 3 is the structural representation of the reversal valve 120 for the excavator boom control system 100 that the specific embodiment of the invention provides
Figure, please refers to Fig. 3.
Reversal valve 120 includes the second oil inlet P, the second oil outlet A, third oil inlet B and third oil outlet T, second into
Hydraulic fluid port P is connect with main pump 110, and the second oil outlet A is connect with the first oil pocket 161, and third oil inlet B is connect with the second oil pocket 163,
Third oil outlet T is connect with fuel tank 170.
The second check valve 121 is equipped in reversal valve 120, the second check valve 121 is set to third oil inlet B and the second oil outlet
Between A, the hydraulic oil entered from third oil inlet B a, part is back to fuel tank 170 through third oil outlet T, and another part is through the
Two check valves 121, the second oil outlet A flow to the first oil pocket 161, are 161 repairing of the first oil pocket of bucket arm cylinder 160.
Fig. 4 is that the pioneer pump 130 for the excavator boom control system 100 that the specific embodiment of the invention provides and pressure control
The attachment structure schematic diagram of valve 131, please refers to Fig. 4.
Pressure-control valve 131 is connect with pioneer pump 130, and the pressure of pioneer pump 130 is adjusted in preset pressure threshold value.It can
Selection of land, pressure-control valve 131 control the maximum pressure of pioneer pump 130 in 4.5MPa.In this way, convenient in the first oil pocket 161
When hydraulic pressure shortage of oil, the hydraulic oil in pioneer pump 130 can smoothly enter into the first oil pocket 161, be 161 repairing of the first oil pocket, prevent
Only bucket arm cylinder 160 is emptied.
Second embodiment
A kind of excavator boom control method provided in this embodiment, including：
Reversal valve 120 is opened, makes main pump 110 to 160 fuel feeding of bucket arm cylinder, dipper executes excavation action.
Switching valve 150 is opened, makes pioneer pump 130 to 160 fuel feeding of bucket arm cylinder, prevents bucket arm cylinder 160 for shortage of oil.
Specifically, guide's hand valve 140 is connect with pioneer pump 130, the pilot signal of excavator is received, guide's hand valve 140 divides
It is not connect with switching valve 150, reversal valve 120, switching valve 150 and reversal valve 120 can be controlled simultaneously.It is main when the unlatching of reversal valve 120
Pump 110 161 fuel feeding of the first oil pocket to bucket arm cylinder 160；When switching valve 150 is opened, pioneer pump 130 is to bucket arm cylinder 160
First oil pocket, 161 fuel feeding.In this way, ensureing that 160 fuel feeding of bucket arm cylinder is sufficient, prevent from being emptied, improves excavation speed and operation is comfortable
Property.
Optionally, the pressure of pioneer pump 130 is controlled, for example, by the control of the maximum pressure of pioneer pump 130 in 4.5MPa, when
The pressure of first oil pocket 161 of bucket arm cylinder 160 is less than the pressure of pioneer pump 130, opens switching valve 150, and pioneer pump 130 exports
Hydraulic oil through reversal valve 120, the first check valve 151 be bucket arm cylinder 160 161 fuel feeding of the first oil pocket.
If opening reversal valve 120 and switching valve 150 simultaneously, main pump 110 and pioneer pump 130 are simultaneously to bucket arm cylinder 160
161 fuel feeding of the first oil pocket.
It should be noted that switching valve 150 can be as normally opened state, i.e., after main pump 110 starts, guide's hand valve
140 just control switching valve 150 open, excavator executes in action process, while having two oil circuits to 161 fuel feeding of the first oil pocket,
I.e. one for main pump 110 through reversal valve 120 to 161 fuel feeding of the first oil pocket, another is pioneer pump 130 through switching valve 150, first
Check valve 151 is to 161 fuel feeding of the first oil pocket.Can also be, under normal conditions from main pump 110 through reversal valve 120 to the first oil pocket
161 fuel feeding, excavator execute excavation action, and when the first oil pocket 161 is for shortage of oil, after pressure reduces, switching valve 150 is then turned on,
For 161 fuel feeding of the first oil pocket, excavator boom is prevented to be emptied.
Excavator boom control system 100 provided by the invention, operation principle is as follows：
When the dipper of excavator excavates, guide's hand valve 140 pushes reversal valve 120 open, and main pump 110 is by reversal valve 120 to bucket
161 fuel feeding of the first oil pocket of rod oil cylinder 160 carries out dipper excavation action.A part for second oil pocket 163 of bucket arm cylinder 160
Hydraulic oil passes through reversal valve by the third oil outlet T oil returns (being back to fuel tank 170) of reversal valve 120, another part hydraulic oil
The second check valve 121 in 120 enters the first oil pocket 161 of bucket arm cylinder 160 through the second oil outlet A, is the first oil pocket 161
Repairing, carry out energy regeneration, extenuate the first oil pocket 161 for shortage of oil phenomenon.
Meanwhile guide's hand valve 140 opens switching valve 150, when dipper quickly excavates, the first oil pocket 161 of bucket arm cylinder 160
When appearance is emptied for shortage of oil, 161 pressure of the first oil pocket of bucket arm cylinder 160 is less than the pressure of pioneer pump 130, pioneer pump 130
Repairing is carried out to the first oil pocket 161 of bucket arm cylinder 160 by switching valve 150 and the first check valve 151, prevents bucket arm cylinder
160 161 hypotony of the first oil pocket causes to be emptied break, to improve excavation speed and operating comfort.
In conclusion excavator boom control system 100 provided by the invention and excavator boom control method have with
Under several aspects advantageous effect：
Excavator boom control system 100 and its method provided by the invention, pioneer pump 130 and bucket arm cylinder 160 it
Between an oil circuit is set, and the first check valve 151 is set on the oil circuit, makes full use of the power surplus of guide's oil circuit to bucket
Bar excavation is supplemented, and has not only been prevented the appearance of bucket rod suction, but also improve dipper excavation speed, has further been improved excavator
Operability and comfort.Moreover, being equipped with the second check valve 121 in reversal valve 120, make the second oil pocket 163 of bucket arm cylinder 160
A hydraulic oil part be back to fuel tank 170, another part is again introduced into the of bucket arm cylinder 160 by the second check valve 121
The phenomenon that one oil pocket 161 realizes energy regeneration, dipper oil pocket is prevented to be emptied.The excavator boom control system 100 structure letter
Single, manipulation conveniently, prevents 161 hypotony of the first oil pocket of bucket arm cylinder 160 from causing to be emptied break, is dug to improve
Dig speed and operating comfort.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the present invention can have various changes, combination and variation.All within the spirits and principles of the present invention, made by
Any modification, equivalent substitution, improvement and etc. should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of excavator boom control system, which is characterized in that including main pump (110), pioneer pump (130), reversal valve
(120), guide's hand valve (140) and bucket arm cylinder (160)；
The main pump (110) connect with the reversal valve (120), and the reversal valve (120) connects with the bucket arm cylinder (160)
It connects；
The pioneer pump (130) connect with guide's hand valve (140), guide's hand valve (140) and the reversal valve (120)
Connection controls the reversal valve (120) unlatching, and the main pump (110) is through the reversal valve (120) to the bucket arm cylinder
(160) fuel feeding；
The pioneer pump (130) connect with the bucket arm cylinder (160), the pioneer pump (130) and the bucket arm cylinder (160)
Between oil circuit in be equipped with the first check valve (151), so that hydraulic oil uniaxially can only be flowed into the bucket from the pioneer pump (130)
Rod oil cylinder (160).
2. excavator boom control system according to claim 1, which is characterized in that further include switching valve (150), it is described
Switching valve (150) is set on the oil circuit between the pioneer pump (130) and the bucket arm cylinder (160), the switching valve (150)
It is connect with guide's hand valve (140).
3. excavator boom control system according to claim 2, which is characterized in that the switching valve (150) includes the
One oil inlet and the first oil outlet, first oil inlet are connect with the pioneer pump (130), first oil outlet with it is described
First check valve (151) connects.
4. excavator boom control system according to claim 1, which is characterized in that the bucket arm cylinder (160) includes
First oil pocket (161) and the second oil pocket (163), first oil pocket (161) are rodless cavity, and second oil pocket (163) is to have
Rod cavity；The pioneer pump (130) connect through first check valve (151) with first oil pocket (161).
5. excavator boom control system according to claim 4, which is characterized in that the reversal valve (120) includes the
Two oil inlets, the second oil outlet, third oil inlet and third oil outlet, second oil inlet are connect with the main pump (110),
Second oil outlet is connect with first oil pocket (161), and the third oil inlet is connect with second oil pocket (163),
The third oil outlet is connect with fuel tank (170).
6. excavator boom control system according to claim 5, which is characterized in that be equipped in the reversal valve (120)
Second check valve (121), second check valve (121) are set between the third oil inlet and second oil outlet, from
The hydraulic oil that the third oil inlet enters, a part are back to the fuel tank (170), another part through the third oil outlet
It flow to first oil pocket (161) through second check valve (121), second oil outlet.
7. excavator boom control system according to claim 1, which is characterized in that further include pressure-control valve (131),
The pressure-control valve (131) connect with the pioneer pump (130), by the pressure adjustment of the pioneer pump (130) in default pressure
In force threshold.
8. a kind of excavator boom control method, which is characterized in that including：
Reversal valve (120) is opened, makes main pump (110) to bucket arm cylinder (160) fuel feeding, dipper executes excavation action；
Switching valve (150) is opened, makes pioneer pump (130) to the bucket arm cylinder (160) fuel feeding, prevents the bucket arm cylinder
(160) for shortage of oil.
9. excavator boom control method according to claim 8, which is characterized in that further include：Control the pioneer pump
(130) pressure, when the bucket arm cylinder (160) pressure be less than the pioneer pump (130) pressure, open the switching valve
(150), the pioneer pump (130) is the bucket arm cylinder (160) fuel feeding.
10. excavator boom control method according to claim 8, which is characterized in that while opening the reversal valve
(120) and the switching valve (150), the main pump (110) and the pioneer pump (130) while to the bucket arm cylinder (160)
Fuel feeding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810717275.5A CN108678051A (en) | 2018-06-29 | 2018-06-29 | Excavator boom control system and excavator boom control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810717275.5A CN108678051A (en) | 2018-06-29 | 2018-06-29 | Excavator boom control system and excavator boom control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108678051A true CN108678051A (en) | 2018-10-19 |
Family
ID=63812858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810717275.5A Pending CN108678051A (en) | 2018-06-29 | 2018-06-29 | Excavator boom control system and excavator boom control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108678051A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206431A (en) * | 2013-04-18 | 2013-07-17 | 中联重科股份有限公司渭南分公司 | Closed rotary system and engineering machine comprising same |
| CN103851040A (en) * | 2014-03-14 | 2014-06-11 | 三一重机有限公司 | Energy regeneration system of excavator and excavator |
| CN105951920A (en) * | 2016-06-20 | 2016-09-21 | 浙江大学 | Excavator rotation kinetic energy recycling and oil supplementing device and method |
| CN205742337U (en) * | 2016-01-18 | 2016-11-30 | 山河智能装备股份有限公司 | A kind of hydraulic crawler excavator fluid Regeneration control loop |
| CN206409447U (en) * | 2016-12-19 | 2017-08-15 | 柳州柳工挖掘机有限公司 | Engineering machinery auxiliary equipment turns round hydraulic control system |
| CN107725524A (en) * | 2017-09-28 | 2018-02-23 | 太原科技大学 | A kind of oil cylinder position adjusts hydraulic circuit |
| CN107882100A (en) * | 2017-10-11 | 2018-04-06 | 柳州柳工挖掘机有限公司 | excavator hydraulic control method and control system |
| CN208717982U (en) * | 2018-06-29 | 2019-04-09 | 索特传动设备有限公司 | Excavator boom control system and excavator |
-
2018
- 2018-06-29 CN CN201810717275.5A patent/CN108678051A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206431A (en) * | 2013-04-18 | 2013-07-17 | 中联重科股份有限公司渭南分公司 | Closed rotary system and engineering machine comprising same |
| CN103851040A (en) * | 2014-03-14 | 2014-06-11 | 三一重机有限公司 | Energy regeneration system of excavator and excavator |
| CN205742337U (en) * | 2016-01-18 | 2016-11-30 | 山河智能装备股份有限公司 | A kind of hydraulic crawler excavator fluid Regeneration control loop |
| CN105951920A (en) * | 2016-06-20 | 2016-09-21 | 浙江大学 | Excavator rotation kinetic energy recycling and oil supplementing device and method |
| CN206409447U (en) * | 2016-12-19 | 2017-08-15 | 柳州柳工挖掘机有限公司 | Engineering machinery auxiliary equipment turns round hydraulic control system |
| CN107725524A (en) * | 2017-09-28 | 2018-02-23 | 太原科技大学 | A kind of oil cylinder position adjusts hydraulic circuit |
| CN107882100A (en) * | 2017-10-11 | 2018-04-06 | 柳州柳工挖掘机有限公司 | excavator hydraulic control method and control system |
| CN208717982U (en) * | 2018-06-29 | 2019-04-09 | 索特传动设备有限公司 | Excavator boom control system and excavator |
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Application publication date: 20181019 |