CN105155611B - A kind of loading machine paced work hydraulic system Intelligent control system - Google Patents
A kind of loading machine paced work hydraulic system Intelligent control system Download PDFInfo
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- CN105155611B CN105155611B CN201510537628.XA CN201510537628A CN105155611B CN 105155611 B CN105155611 B CN 105155611B CN 201510537628 A CN201510537628 A CN 201510537628A CN 105155611 B CN105155611 B CN 105155611B
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Abstract
The invention discloses a kind of loading machine paced work hydraulic system Intelligent control system, including hydraulic oil container, working barrel, distributing valve, pioneer pump, Intelligent control module, pilot valve, rotary ink tank and boom cylinder；Intelligent control module is mainly made up of the pressure sensor controller of first, second magnetic valve first, second；Intelligent control module provided by the invention integrates an automatically controlled valve group, under without using this module or this functions of modules failure conditions, does not also influence complete machine hydraulic system of working and is operated using traditional manipulation form；When being operated using this module, use this module " key operation " function, it can intelligently realize that equipment scraper bowl receives bucket and " seamless switching " of boom arm lift action, and finally realize the automatic deloading of hydraulic system of working, while loader operation personnel labor intensity is greatly reduced.Reach hydraulic system of working energy-conservation, efficient and increase loading machine integration of operation state tractive force effect.
Description
Technical field
The present invention relates to a kind of loader hydraulic system, specifically a kind of loading machine is intelligently grasped with paced work hydraulic system
Control system.
Background technology
Most of the country loading machine all uses fixed dilivery hydraulic system (paced work hydraulic system and steering hydraulic system at present
System), with regard to hydraulic system itself, in course of normal operation, (the described course of work refers to action and the complete machine of equipment herein
Go to action) in the energy consumption of fixed dilivery hydraulic system and variable delivery hydraulic system will not produce too big difference.Due to machine operator
Member is horizontal uneven, just some unavoidable operating personnel can be allowed in using machine processes complete machine work run when more place
By during the more normal rated load working condition of more consumption about 20% work(when high pressure kicks state, hydraulic system high pressure kicks
Rate.This power consumption is then transferred to gearbox by hydraulic pump, and is finally transmitted to engine, due to being deposited between this power transmission again
In an efficiency, therefore the power consumption of reflection on the engine during hydraulic system high pressure kicks is caused to send out more greatly
Fuel consumption during hydraulic system normal work than that will be higher by 25% or so in hydraulic system high pressure kicks state for motivation, and this is just
Cause the increase of energy consumption.
The content of the invention
In view of the above-mentioned problems of the prior art, the present invention provides a kind of loading machine paced work hydraulic system intelligence
Control system, intelligently switches or the hydraulic system that is stopped acts, and the high pressure kicks of system is avoided, so as to avoid working hydraulic pressure system
There is the situation of high pressure kicks in system, reduces the spill losses of hydraulic system, reduces hydraulic system energy consumption, while combining complete machine
Bigger tractive force is obtained in operation process.
To achieve these goals, a kind of loading machine paced work hydraulic system Intelligent control system of the present invention, including
Hydraulic oil container, working barrel, distributing valve, pioneer pump, Intelligent control module, pilot valve, rotary ink tank and boom cylinder；The work
The oil inlet for making pump is connected with hydraulic oil container, and the oil-out P1 of working barrel is connected with the oil inlet P 2 of distributing valve；The pioneer pump
Oil inlet be connected with hydraulic oil container；
The Intelligent control module is mainly made up of the pressure sensor controller of first, second magnetic valve first, second；Institute
Control port P31, P32 of first, second magnetic valve is stated with the oil-out P3 of pioneer pump to be connected；The control of first, second magnetic valve
Liquefaction mouth Pa1, Pa2 receive bucket action control hydraulic fluid port a1 with the scraper bowl of distributing valve respectively, boom arm lift action control hydraulic fluid port a2 is connected；
Control port Pa1 ', the Pa2 ' of first, second magnetic valve receive bucket action control hydraulic fluid port d1 with the scraper bowl of pilot valve respectively, swing arm carries
Action control hydraulic fluid port d2 is risen to be connected；The first pressure sensor input is connected with rotary ink tank rodless cavity；Second pressure
Force snesor input is connected with boom cylinder rodless cavity；The controller is connected with first, second pressure sensor output end,
Controller output end is connected with electric signal the receiving port R1 and R2 of first, second magnetic valve；R1 and R2 is according to reception electric signal shape
State carries out commutation control to first, second magnetic valve.
Further, the controller is provided with a control button for being used to control Intelligent control module switch.
The present invention carries out " key operation " when loading machine spading acts, using Intelligent control module, realizes quantitative hydraulic
System loading mechanical shovel bucket spading and boom arm lift action intelligence " seamless switching ", and the energy-conservation purpose of automatic deloading is finally reached,
Increase the tractive force under complete machine working condition simultaneously.This module and conventional load machine hydraulic control system are simultaneously deposited, without using this
During module, operation with traditional steerable system carries out operation and is not affected.
The present invention has advantages below compared with prior art：
1) Intelligent control module is used, can be under the premise of control crank of being failure to actuate certainly using its " key operation " function
It is dynamic to complete loading machine spading and boom arm lift operation overall process, only need loader operation personnel to control when needed during this
Complete machine travels and braking.And carried out under " key operation " operating mode in spading and boom arm lift action process, operating personnel
Control can switch to conventional mode of operation at any time or the device action that is stopped.It is simple to operate, and operation can be greatly reduced
Personnel labor intensity, improve complete machine operation comfort.
2) present invention can be completed in loading shovel spading and boom arm lift operation or during (beyond work system
Under the premise of setting overload value), by controller C1 two pressure sensors are transmitted with the analysis of signal, intelligently realizes work system
Off-load, hydraulic system of working is reduced because of the caloric value of high pressure kicks, avoids the high pressure kicks heating power of hydraulic system of working from damaging
Lose, reach the energy-saving effect of hydraulic system of working, protect hydraulic system element and complete machine structure part, and reach increase complete machine
The purpose of tractive force and energy-conservation.
3) in complete machine spading and the boom arm lift course of work, using pressure sensor, monitoring turns Intelligent control module in real time
Struggle against oil cylinder and boom cylinder rodless cavity pressure, and realizes that scraper bowl spading and swing arm carry by integrated controller and automatically controlled valve group
The intelligentized control method of action " seamless switching " is risen, makes complete machine operation more steady, acts more smooth.
4) Intelligent control module uses integration module form, compact-sized, and processing and manufacturing is easy, and function realizes convenient letter
It is single.
5) generalization is strong, it is only necessary to and change pressure sensor and change controller C1 intrinsic parameter setting values, can be with institute
Have and popularization and application are carried out on fixed dilivery hydraulic system loading machine.
Even 6) unfamiliar loader operation new hand, as long as slightly training, using its " key operation " function, together
Sample can reach considerable energy-saving effect.Therefore to loader operation human users skill set requirements decline, realize employment into
This declines to a great extent.
Brief description of the drawings
Fig. 1 is hydraulic principle schematic diagram of the present invention；
Fig. 2 is rotating bucket cylinder control schematic diagram of the present invention；
Fig. 3 is swing arm cylinder control schematic diagram of the present invention；
Fig. 4 is present invention control oil communication view；
In figure：1st, hydraulic oil container, 2, working barrel, 3, distributing valve, 4, pioneer pump, 5, Intelligent control module, 6, pilot valve, 7,
Rotary ink tank, 8, boom cylinder, V1, automatically controlled valve group, V11, the first magnetic valve, V12, second solenoid valve, S1, first pressure sensing
Device, S2, second pressure sensor, C1, controller.
Embodiment
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
As shown in figure 1, a kind of loading machine paced work hydraulic system Intelligent control system of the present invention, including hydraulic oil container
1st, working barrel 2, distributing valve 3, pioneer pump 4, Intelligent control module 5, pilot valve 6, rotary ink tank 7 and boom cylinder 8；The work
The oil inlet for making pump 2 is connected with hydraulic oil container 1, and the oil-out P1 of working barrel 2 is connected with the oil inlet P 2 of distributing valve 3；The elder generation
The oil inlet for leading pump 4 is connected with hydraulic oil container 1；The Intelligent control module 5 is mainly by first, second magnetic valve V11, V12,
First, second pressure sensor S1, S2, controller C1 are formed；Described first, second magnetic valve V11, V12 control port P31,
P32 is connected with the oil-out P3 of pioneer pump 4；First, second magnetic valve V11, V12 control port Pa1, Pa2 respectively with distribution
The scraper bowl of valve 3 receives bucket action control hydraulic fluid port a1, boom arm lift action control hydraulic fluid port a2 is connected；First, second magnetic valve V11, V12
Control port Pa1 ', Pa2 ' bucket action control hydraulic fluid port d1, boom arm lift action control hydraulic fluid port are received with the scraper bowl of pilot valve 6 respectively
D2 is connected；The first pressure sensor S1 inputs are connected with the rodless cavity of rotary ink tank 7；The second pressure sensor S2 is defeated
Enter end with the rodless cavity of boom cylinder 8 to be connected；The controller C1 is connected with first, second pressure sensor S1, S2 output end, control
Device C1 output ends processed are connected with first, second magnetic valve V11, V12 electric signal receiving port R1 and R2；R1 and R2 is electric according to receiving
Signal condition carries out commutation control to first, second magnetic valve V11, V12.The outlet pressure oil P1 of working barrel 2 is entered so as to realize
Enter the intelligent control that working condition switches after the oil inlet P 2 of distributing valve 3.And it is being finally completed scraper bowl spading and boom arm lift action
After carry out automatic deloading, the high pressure kicks heat producing losses of system is reduced to zero, reach the purpose of hydraulic system of working efficient energy-saving.
Controller C1 of the present invention is provided with a control button for being used to control Intelligent control module 5 to switch.In order to realize
" key operation " function.
Function of the present invention is mainly introduced below realizes operation and control thinking.
First, control condition：
" key operation " refers to the working condition that an individually operated control button opens Intelligent control module 5；Without " one
Key operation ", Intelligent control module 5 do not work.
After " key operation " is carried out, if equal no signal output (the i.e. rotating bucket cylinders of first, second pressure sensor S1, S2
It is no more than setup pressure value with swing arm cylinder rodless cavity pressure), then R1 and R2 is in electriferous state, and R1 and R2 powered shape
State is independent mutually, shown in body control condition and route reference picture 2 and Fig. 3.
2nd, control principle and scheme：
When loading machine proceeds by spading action using Intelligent control module 5, " a key is carried out using Intelligent control module 5
Operation ", and keep pilot valve 6 to be in middle position simultaneously：Now rotary ink tank 7 and the rodless cavity of boom cylinder 8 are acted still due to spading
Really carry out, both be low pressure (less than pressure sensor signal output setting value), first, second pressure sensor S1,
The equal no signal outputs of S2；Now the controller C1 in Intelligent control module 5 receives only " key operation " signal and handled,
Automatically controlled valve group V1 signals the receiving port R1 and R2 into Intelligent control module 5 are transmitted signal simultaneously after processing, and automatically controlled valve group V1 connects
Collection of letters R1 and R2 simultaneously it is electric and carry out commutation action (control port P31 is connected with Pa1 in automatically controlled valve group V1 after commutation,
P32 is connected with Pa2).After automatically controlled valve group V1 commutation, the delivery outlet P3 of pioneer pump 4 output pilot controls oil not to P31 and
P32, now oil communication state is controlled to be illustrated in fig. 4 shown below.
In the case where controlling oil communication state shown in Fig. 4, the rotating bucket of distributing valve 3 joins valve element and passed through in the pressure output control of pioneer pump 4
Scraper bowl, which is moved to, after the connection a1 control port effects of the rotating bucket of distributing valve 3 receives bucket operating position；The swing arm of distributing valve 3 joins valve element in pioneer pump 4
Boom arm lift operating position is moved to after the allocated swing arm of the valve 3 connection a2 control port effects of pressure output control.Distributing valve 3 is reviewed,
Make preferential it may be seen that this distributing valve 3 is rotating bucket linkage, therefore now preferentially to carry out scraper bowl spading (receiving bucket) dynamic for loading machine
Make；And though swing arm connection valve element is in boom arm lift position, because no pressure oil inputs, swing arm attonity.Loading mechanical shovel
During pick, first pressure sensor S1 monitors rotating bucket cylinder rodless cavity pressure always, the rotating bucket oil in spading acts implementation process
Cylinder rodless cavity pressure can be gradually risen to first pressure sensor S1 signal output setting values, and now first pressure sensor S1 is defeated
Go out R1 in signal --- controller C1 --- automatically controlled valve group V1 to power off, the first magnetic valve V11 commutates to right working position；Now distribute
The connection a1 control ports of the rotating bucket of valve 3 connect with hydraulic oil container 1, and rotating bucket connection valve element returns middle position, the allocated valve of the pressure oil output of working barrel 2
3 rotating buckets connection valve element middle position flow to swing arm connection valve element boom arm lift position.
By said process, the action of loading shovel spading and " seamless switching " that boom arm lift acts at this moment are realized.This
Shi Jinhang boom arm lifts act, and same second pressure sensor S2 monitors swing arm cylinder rodless cavity pressure, moved in boom arm lift always
Boom cylinder rodless cavity pressure can be gradually risen to second pressure sensor S2 signal output setting values during work is implemented, now
R2 is powered off in second pressure sensor S2 output signals --- controller C1 --- automatically controlled valve group V1, second solenoid valve V12 commutations
To right working position；Now the a2 control ports of the swing arm of distributing valve 3 connection connect with hydraulic oil container 1, and swing arm connection valve element returns middle position, working barrel
The 2 pressure oil outputs the allocated rotating bucket of valve 3 connection valve element middle position and swing arm connection valve element middle position flow back into fuel tank (it is assumed that for first,
The pressure that second pressure sensor S1, S2 are monitored, is to be higher by setting value), the automatic deloading of hydraulic system of working is realized, no
The situation of high pressure kicks occurs, reaches the purpose of fixed dilivery hydraulic system efficient energy-saving.
Note：If any one pressure detected of two pressure sensors is less than setting value, its corresponding equipment moves
Make (scraper bowl spading receives bucket or boom arm lift) and continue " seamless switching " progress, until two pressure sensors reach setting pressure
Value, the rotating bucket connection valve element and swing arm connection valve element of distributing valve 3 are in middle position automatically, whole hydraulic system of working intelligence off-load,
Increase complete machine tractive force while energy-conservation.
Certainly, above-described embodiment is only the preferred scheme of the present invention, is specifically not limited thereto, on this basis can basis
It is actually needed and makes with targetedly adjusting, so as to obtain different embodiments.Because mode in the cards is more, this
In just no longer illustrate one by one.
Claims (2)
1. a kind of loading machine paced work hydraulic system Intelligent control system, including hydraulic oil container（1）, working barrel（2）, distribution
Valve（3）, pioneer pump（4）, pilot valve（6）, rotary ink tank（7）And boom cylinder（8）；The working barrel（2）Oil inlet with
Hydraulic oil container（1）It is connected, working barrel（2）Oil-out（P1）With distributing valve（3）Oil inlet（P2）It is connected；The pioneer pump
（4）Oil inlet and hydraulic oil container（1）It is connected；
Characterized in that, also include Intelligent control module（5）；The Intelligent control module（5）Mainly by first, second magnetic valve
（V11、V12）, first, second pressure sensor（S1、S2）, controller（C1）Composition；
First, second magnetic valve（V11、V12）First, second control port（P31、P32）With pioneer pump（4）It is fuel-displaced
Mouthful（P3）It is connected；First, second magnetic valve（V11、V12）The three, the 4th control ports（Pa1、Pa2）Respectively with distributing valve
（3）Scraper bowl receive bucket action control hydraulic fluid port（a1）, boom arm lift action control hydraulic fluid port（a2）It is connected；First, second magnetic valve
（V11、V12）The five, the 6th control ports（Pa1′、Pa2′）Respectively with pilot valve（6）Scraper bowl receive bucket action control hydraulic fluid port
（d1）, boom arm lift action control hydraulic fluid port（d2）It is connected；The first pressure sensor（S1）Input and rotary ink tank（7）Nothing
Rod cavity is connected；The second pressure sensor（S2）Input and boom cylinder（8）Rodless cavity is connected；The controller（C1）With
First, second pressure sensor（S1、S2）Output end is connected, controller（C1）Output end and first, second magnetic valve（V11、
V12）Electric signal receiving port（R1、R2）It is connected；Electric signal receiving port（R1、R2）According to receive electrical signal status to first, the
Two magnetic valves（V11、V12）Carry out commutation control.
2. loading machine according to claim 1 paced work hydraulic system Intelligent control system, it is characterised in that described
Controller（C1）One is provided with to be used to control Intelligent control module（5）The control button of switch.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510537628.XA CN105155611B (en) | 2015-08-27 | 2015-08-27 | A kind of loading machine paced work hydraulic system Intelligent control system |
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| CN201510537628.XA CN105155611B (en) | 2015-08-27 | 2015-08-27 | A kind of loading machine paced work hydraulic system Intelligent control system |
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| CN105155611A CN105155611A (en) | 2015-12-16 |
| CN105155611B true CN105155611B (en) | 2018-02-02 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805094B (en) * | 2018-08-06 | 2022-03-01 | 柳州柳工挖掘机有限公司 | Hydraulic system of excavator working device and excavation control method |
| CN108999236B (en) * | 2018-08-13 | 2020-01-07 | 广西柳工机械股份有限公司 | Hydraulic system of loader working device |
| CN110857571B (en) * | 2018-08-23 | 2022-03-01 | 柳州柳工挖掘机有限公司 | Hydraulic system of excavator working device and excavation control method |
| CN113266046A (en) * | 2021-05-24 | 2021-08-17 | 江苏徐工工程机械研究院有限公司 | Loader-digger |
| CN113910918B (en) * | 2021-09-28 | 2023-08-15 | 徐工集团工程机械股份有限公司科技分公司 | Multi-station automatic speed regulation control system of electric loader |
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| CN101936018A (en) * | 2010-07-26 | 2011-01-05 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Electro-hydraulic proportion control system of loader |
| CN203500145U (en) * | 2013-10-22 | 2014-03-26 | 徐工集团工程机械股份有限公司科技分公司 | Pressure compensation and automatic unloading hydraulic system of loader fixed displacement pump |
| CN104032791A (en) * | 2014-05-28 | 2014-09-10 | 广西柳工机械股份有限公司 | Quantitative and variable hydraulic system of loading machine |
| CN205276358U (en) * | 2015-08-27 | 2016-06-01 | 徐工集团工程机械股份有限公司科技分公司 | Paced work hydraulic system intelligence control system for loader |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5961579B2 (en) * | 2013-04-01 | 2016-08-02 | 日立建機株式会社 | Excavator |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936018A (en) * | 2010-07-26 | 2011-01-05 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Electro-hydraulic proportion control system of loader |
| CN203500145U (en) * | 2013-10-22 | 2014-03-26 | 徐工集团工程机械股份有限公司科技分公司 | Pressure compensation and automatic unloading hydraulic system of loader fixed displacement pump |
| CN104032791A (en) * | 2014-05-28 | 2014-09-10 | 广西柳工机械股份有限公司 | Quantitative and variable hydraulic system of loading machine |
| CN205276358U (en) * | 2015-08-27 | 2016-06-01 | 徐工集团工程机械股份有限公司科技分公司 | Paced work hydraulic system intelligence control system for loader |
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