CN110409544A - A kind of excavator Auxiliary Functions Control System and excavator - Google Patents

A kind of excavator Auxiliary Functions Control System and excavator Download PDF

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Publication number
CN110409544A
CN110409544A CN201910579293.6A CN201910579293A CN110409544A CN 110409544 A CN110409544 A CN 110409544A CN 201910579293 A CN201910579293 A CN 201910579293A CN 110409544 A CN110409544 A CN 110409544A
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China
Prior art keywords
auxiliary
excavator
controller
pressure
actuator
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Granted
Application number
CN201910579293.6A
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Chinese (zh)
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CN110409544B (en
Inventor
史剑
孟令旗
沈建辉
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Sany Heavy Machinery Ltd
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Sany Heavy Machinery Ltd
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Priority to CN201910579293.6A priority Critical patent/CN110409544B/en
Publication of CN110409544A publication Critical patent/CN110409544A/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20Drives; Control devices
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20Drives; Control devices
    • E02F9/22Hydraulic or pneumatic drives
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20Drives; Control devices
    • E02F9/22Hydraulic or pneumatic drives
    • E02F9/2221Control of flow rate; Load sensing arrangements
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20Drives; Control devices
    • E02F9/22Hydraulic or pneumatic drives
    • E02F9/2221Control of flow rate; Load sensing arrangements
    • E02F9/2232Control of flow rate; Load sensing arrangements using one or more variable displacement pumps
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20Drives; Control devices
    • E02F9/22Hydraulic or pneumatic drives
    • E02F9/2264Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2267Valves or distributors

Abstract

The present invention provides a kind of excavator Auxiliary Functions Control System and excavator, the excavator Auxiliary Functions Control System includes controller, hydraulic pump, first pressure testing agency, second pressure testing agency, proportion magnetic valve and flow controller.The present invention respectively detects the operating pressure of excavator conventional actuator and auxiliary executing agency by two pressure-detecting devices, controller based on the received pressure come determine and calculate excavator conventional actuator and assist executing agency operator precedence sequence, and pass through the control to both flow controller and hydraulic pump, to match the assignment of traffic between auxiliary executing agency and conventional actuator, it realizes that excavator conventional actuator and auxiliary execute the coordination between structure, achievees the purpose that excavator miscellaneous function works normally;The system that the present invention develops under the premise of not changing existing positive flow system has the advantages that development difficulty is low.The present invention also provides a kind of excavators.

Description

A kind of excavator Auxiliary Functions Control System and excavator
Technical field
The present invention relates to engineering machinery and its control system field more particularly to a kind of excavator Auxiliary Functions Control Systems And the excavator using the control system.
Background technique
At present excavator using more and more extensive, excavator may not only be applied to excavation of earthwork operation, also assistance application In broken, lifting, rammed earth, grab in all kinds of operating conditions such as wood, plant wood.Since excavator miscellaneous function is opened up in ontology hydraulic system The function of expansion, it is often bad with integrated hydraulic system matches, cause user not manipulate normally, influences the normal work of equipment Make.
Especially positive flow system hydraulic crawler excavator is excellent by the throttling of hydraulic system with related elemental motion is excavated First etc. modes realize co-ordination, in positive flow system excavator application miscellaneous function, due to miscellaneous function and excavator liquid The mismatch of pressure system, it is uncoordinated when leading to miscellaneous function and conventional func composite move, influencing excavator miscellaneous function just It is often used.Especially external accessory type is more and more, for example, the hydraulic shear with revolute function, nutation type scraper bowl, rotation grab Bucket etc., these accessories are accessed in existing positive flow system in a manner of embedded, when conventional actuator and auxiliary execute When mechanism will act simultaneously, it just will appear the inappropriate situation of assignment of traffic, cause the appearance of accessory exercise not harmony problem, Great inconvenience is brought to operator.Such as: excavator assembles the hydraulic shear with revolute function, operates excavator swing arm when simultaneously When (large arm) is promoted with hydraulic shear revolute function, since boom arm lift load pressure is far longer than hydraulic shear revolution load pressure, Cause the distribution of positive flow flow system flow uneven, i.e., most of hydraulic oil flows to the small hydraulic shear of load pressure, and hydraulic part is caused to return Rotary speed is too fast, and boom arm lift is very slow, causes composition operation exercise not harmony.In order to solve this problem, occur on the market A kind of solution: making and change to original multi-way valve (flow divider valve) and system, copes with main and auxiliary function with this Problem of disharmony, but such solution increases the complicated property of entire control system, and cost is huge, is not suitable for the overwhelming majority User.
In view of this, it would be highly desirable to which a kind of new technical solution solves above-mentioned technical problem.
Summary of the invention
One of the objects of the present invention is to provide a kind of excavator Auxiliary Functions Control Systems, are not changing original positive stream Under the premise of amount system, realizes conventional actuator and assist the purpose more coordinated of composition operation of executing agency.
The second object of the present invention is to provide a kind of excavator using above-mentioned control system, can ensure that excavator routine The composition operation of executing agency and auxiliary executing agency is more coordinated, and haves no need to change original positive flow system, development difficulty It is low, simple and easy.
To achieve the goals above, the present invention uses following technological means:
A kind of excavator Auxiliary Functions Control System, including it is conventional actuator and auxiliary executing agency, controller, hydraulic Pump, first pressure testing agency, second pressure testing agency, proportion magnetic valve and flow controller, the first pressure testing agency Pressure value with second pressure testing agency for detection conventional actuator respectively and auxiliary executing agency, and respectively will be described Pressure value is sent to the controller, and the controller is according to the pressure value received and according to the process control hydraulic pump of setting Output power;The hydraulic pump connects the conventional actuator, for providing flow to conventional actuator;The auxiliary Executing agency connects the conventional actuator, and for distributing flow from conventional actuator, the flow controller is connected to institute It states between conventional actuator and auxiliary executing agency, flow controller is used for the pressure signal according to the proportion magnetic valve and controls The uninterrupted of flow direction auxiliary executing agency.
As a further improvement, the conventional actuator includes scraper bowl, dipper or swing arm;The auxiliary executing agency Including the hydraulic shear with revolute function, nutation type scraper bowl, quartering hammer or rotation grab bucket.
As a further improvement, the excavator Auxiliary Functions Control System further includes auxiliary operation mechanism, described auxiliary Operating mechanism is helped to connect with controller, the controller after amplifying to the input signal of auxiliary operation mechanism for being sent to The proportion magnetic valve.
As a further improvement, the auxiliary operation mechanism includes operation button or operation handle.
As a further improvement, the controller is the controller that program is controlled based on LMS.
As a further improvement, when the pressure value that the first pressure testing agency detects is detected greater than second pressure When the pressure value that mechanism detects, the controller control hydraulic pump reduces output power.
As a further improvement, the pressure value that the controller is detected according to the first pressure testing agency and the The ratio for the pressure value that two pressure detection mechanisms detect reduces the amount of output power to control hydraulic pump.
As a further improvement, the auxiliary executing agency further includes auxiliary body's spool, and the proportion magnetic valve is used In the openings of sizes of control auxiliary body's spool, the opening of auxiliary body's spool and the pressure signal of proportion magnetic valve are in just To relationship.
As a further improvement, the valve core opening of the flow controller and the valve core opening of the miscellaneous function are in reversed Relationship.
A kind of excavator, including above-mentioned excavator Auxiliary Functions Control System.
Compared with the prior art, the present invention is brought the following benefits:
The present invention is by two pressure-detecting devices respectively to the work of excavator conventional actuator and auxiliary executing agency Detected as pressure, controller based on the received pressure come determine and calculate excavator conventional actuator and auxiliary execution machine The operator precedence sequence of structure, and by the control to both flow controller and hydraulic pump, it is held to match auxiliary executing agency and routine Assignment of traffic between row mechanism realizes that excavator conventional actuator and auxiliary execute the coordination between structure, reaches excavation The purpose that machine miscellaneous function works normally.
In addition, the present invention be developed under the premise of not changing existing positive flow system for ensure conventional actuator and The control system for assisting executing agency's composition operation harmony, has the advantages that development difficulty is low.
Detailed description of the invention
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 shows the control principle drawing of a preferred embodiment of the present invention;
Fig. 2 shows the running parameter change curves of flow controller of the invention;
Fig. 3 shows the control principle drawing of another preferred embodiment of the present invention;
Fig. 4 shows the change curve of pump output flow and pressure ratio in the embodiment of the present invention.
Main element symbol description:
1- hydraulic pump;2- auxiliary operation mechanism;4- proportion magnetic valve;5- flow controller;6- conventional actuator;7- auxiliary is held Row mechanism;8- controller.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more, Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral;It can be mechanical connect It connects, is also possible to be electrically connected;It can be directly connected, can also can be in two elements indirectly connected through an intermediary The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below " One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
Embodiment one
It please referring to Fig.1 to Fig.3, a preferred embodiment of the present invention discloses a kind of excavator Auxiliary Functions Control System, including Conventional actuator 6 and auxiliary executing agency 7, controller 8, hydraulic pump 1, first pressure testing agency, second pressure detection machine Structure, proportion magnetic valve 4 and flow controller 5, the first pressure testing agency and second pressure testing agency are normal for detection respectively It advises executing agency 6 and assists the pressure value of executing agency 7, and the pressure value is sent to the controller 8, the control respectively The output power of process control hydraulic pump 1 of the device 8 processed according to the pressure value received and according to setting;The hydraulic pump 1 connects The conventional actuator 6, for providing flow to conventional actuator 6;The auxiliary executing agency 7 connects the routine and holds Row mechanism 6, for from conventional actuator 6 distribute flow, the flow controller 5 be connected to the conventional actuator 6 with it is auxiliary It helps between executing agency 7, flow controller 5 is used for the pressure signal according to the proportion magnetic valve 4 and controls flow direction auxiliary execution machine The uninterrupted of structure 7.
Specifically in this example, the controller 8 is to control program based on LMS (LINGUISTICS MODELSYSTEM) Controller 8, it is to be understood that the present invention do not limit controller 8 be LMS controller 8, it is other to can be realized above-mentioned control The controller 8 of function.
Specifically in the present embodiment, the auxiliary executing agency 7 further includes auxiliary body's spool, the proportion magnetic valve 4 For controlling the openings of sizes of auxiliary body's spool, the opening of auxiliary body's spool and the pressure signal of proportion magnetic valve 4 In positive relationship.More preferably, the valve core opening of the flow controller 5 and the valve core opening of the miscellaneous function are being in inverse relationship (as shown in Figure 2).
Specifically in the present embodiment, the conventional actuator 6 is swing arm, and the auxiliary executing agency 7 is band revolution function The hydraulic shear of energy, more specifically, the swing arm movement to be executed are lifting movement, what the auxiliary executing agency 7 to be executed Movement is that revolution acts, to complete a composition operation jointly: hydraulic shear being lifted to a certain height, while rotating some angle Degree, to be directed at the article for needing to cut out.In such cases, the first pressure testing agency and second pressure testing agency point Not Jian Ce swing arm and hydraulic shear operating pressure, and the working pressure that will test respectively feeds back to controller 8;Executing agency Operating pressure is related with the quality of itself, load and action, and in general, the operating pressure of conventional actuator 6 is wanted Greater than the operating pressure of auxiliary executing agency 7.In positive flow system, hydraulic oil tendency flows to the small execution machine of load pressure Therefore structure is greater than the operating pressure that second pressure testing agency measures in the working pressure that first pressure testing agency measures In the case where value, for example the working pressure of swing arm is 12Mpa, and the working pressure of hydraulic shear revolution is 3Mpa, and hydraulic pump 1 Output hydraulic pressure oil total flow is certain.The hydraulic fluid flow rate allocation proportion for causing hydraulic shear revolute function and swing arm to obtain is uneven, When hydraulic shear, which turns round, starts to work, the hydraulic oil overwhelming majority of hydraulic pump 1 will flow to hydraulic shear, and only small part hydraulic oil Swing arm is flowed to, this has been resulted in that hydraulic shear rotary motive power is abundant, and swing arm is short of power, and bring consequence is: hydraulic shear will Revolution movement is quickly completed, but swing arm delays the position for being lifted to needs, to both cause the uncoordinated of movement.
For this purpose, the present embodiment changes above-mentioned condition by following two approach:
First approach: being adjusted by proportion magnetic valve 4 and flow controller 5, specifically, when hydraulic shear revolution needs work When, controller 8 issues electric signal to the proportion magnetic valve 4, which is changed into pressure signal by the ratio battery valve, To control the folding of auxiliary 7 spool of executing agency, ratio battery valve is forward direction to the folding control of auxiliary 7 spool of executing agency The pressure signal of relationship, i.e. proportion magnetic valve 4 is bigger, and spool opens bigger;Meanwhile proportion magnetic valve 4 is also to throttling Device 5 is controlled: specifically in the present embodiment, proportion magnetic valve 4 is inverse relationship, i.e. proportion magnetic valve to the control of throttle valve 4 pressure signal is bigger, then the valve core opening of flow controller 5 is smaller, thus in the start-up course of hydraulic shear, it is hydraulic with controlling The spool Zhang get Yue for cutting revolute function is opened, the fewer result of the hydraulic oil obtained at slave arm instead.Therefore, in positive flow system Control under, originally by operating pressure be 3Mpa pressure auxiliary executing agency 7, due to flow controller 5 throttle under the action of, finally The flow of acquisition is greatly reduced, and the flow of swing arm acquisition at this time is obviously improved, so that the two assignment of traffic is uniform, compound work Work is coordinated;However, only the step is also unable to reach mesh of the present invention in swing arm operating pressure > hydraulic shear revolution operating pressure , i.e. swing arm and the harmony of hydraulic shear revolution be when cannot still reach optimum state, and it is certain auxiliary to make to need Article 2 approach It helps;
Article 2 approach: when the pressure signal measured is sent to by first pressure testing agency and second pressure testing agency Both after controller 8, preset program will be compared two pressure values in the controller 8, take difference or take Ratio and then control is adjusted to the output flow of hydraulic pump 1.Specifically, controller 8 according to the difference or ratio come Controlling hydraulic pump 1 reduces output output flow, and the amount specifically reduced is changed according to the linearity curve of Fig. 4.For example, former pump Output total flow is 100L/min, and when total output flow of hydraulic pump 1 is reduced to 60L/min, swing arm and hydraulic shear revolution are obtained The flow obtained is synchronous to be reduced;Final effect is that the operating rate of swing arm and hydraulic scissors reduces, so that manipulator is easy behaviour Make.
In the actual operation process, above-mentioned two approach in no particular order, carry out simultaneously.
It should be noted that conventional actuator 6 of the invention is not limited to swing arm, common executing agency such as scraper bowl and bucket Bar, these mechanisms for executing the main actions of excavator can be conventional actuator 6 of the present invention;Of the invention is auxiliary It helps executing agency 7 to be not limited to the hydraulic shear with revolute function of the present embodiment, can also be nutation type scraper bowl, quartering hammer or rotation Turn grab bucket.
Specifically in the present embodiment, the excavator Auxiliary Functions Control System further includes auxiliary operation mechanism 2, described auxiliary Operating mechanism 2 is helped to connect with controller 8, the controller 8 after amplifying to the input signal of auxiliary operation mechanism 2 for sending out Give the proportion magnetic valve 4.More specifically, the auxiliary operation mechanism 2 can be operation button or operation handle.
To sum up, compared with the prior art, the present embodiment is brought the following benefits:
The present invention to excavator conventional actuator 6 and assists executing agency 7 respectively by two pressure-detecting devices Operating pressure is detected, and controller 8 based on the received hold to determine and calculate excavator conventional actuator 6 and auxiliary by pressure The operator precedence sequence of row mechanism 7, and by the control to both flow controller 5 and hydraulic pump 1, to match auxiliary executing agency 7 Assignment of traffic between conventional actuator 6 realizes that excavator conventional actuator 6 and auxiliary execute the association between structure It adjusts, achievees the purpose that excavator miscellaneous function works normally.
Embodiment two
It please refers to Fig.1 to Fig.3, another preferred embodiment of the invention discloses a kind of excavator, including above-mentioned excavator Auxiliary Functions Control System.
The excavator Auxiliary Functions Control System is being used for of developing under the premise of not changing existing positive flow system Ensure conventional actuator 6 and assists the control system of 7 composition operation harmony of executing agency, it is existing its purpose is to solve Conventional actuator 6 and auxiliary executing agency 7 existing assignment of traffic in composition operation are uneven in positive flow system, thus band The problem of carrying out exercise not harmony.
The excavator Auxiliary Functions Control System includes conventional actuator 6 and auxiliary executing agency 7, controller 8, liquid Press pump 1, first pressure testing agency, second pressure testing agency, proportion magnetic valve 4 and flow controller 5, the first pressure detection The pressure value of mechanism and second pressure testing agency for detection conventional actuator 6 respectively and auxiliary executing agency 7, and respectively The pressure value is sent to the controller 8, the controller 8 is according to the pressure value received and according to the program control of setting The output power of hydraulic pump 1 processed;The hydraulic pump 1 connects the conventional actuator 6, for providing to conventional actuator 6 Flow;The auxiliary executing agency 7 connects the conventional actuator 6, for distributing flow, institute from conventional actuator 6 It states flow controller 5 to be connected between the conventional actuator 6 and auxiliary executing agency 7, flow controller 5 is used for according to the ratio electricity The pressure signal of magnet valve 4 and control flow direction auxiliary executing agency 7 uninterrupted.
The preferred embodiment and embodiment one of the present embodiment are consistent, and details are not described herein again.
The working principle of the present embodiment are as follows:
When the working pressure that first pressure testing agency measures is 12Mpa, the work that second pressure testing agency measures Pressure value is 3Mpa.At this point, auxiliary executing agency 7 will be assigned to most flows of pump output, and conventional actuator 6 Lesser flow will be assigned to.The problem that such situation will bring composition operation uncoordinated, therefore, it is necessary in terms of following two To adjust:
The first, it is adjusted by proportion magnetic valve 4 and flow controller 5, specifically, when assisting executing agency 7 to need work, Controller 8 issues electric signal to the proportion magnetic valve 4, which is changed into pressure signal by the ratio battery valve, from And the folding of auxiliary 7 spool of executing agency is controlled, ratio battery valve is positive close to the folding control of auxiliary 7 spool of executing agency System, i.e. the pressure signal of proportion magnetic valve 4 is bigger, and spool opens bigger;Meanwhile proportion magnetic valve 4 also to flow controller 5 into Row control: specifically, proportion magnetic valve 4 is inverse relationship to the control of throttle valve, i.e. the pressure signal of proportion magnetic valve 4 is got over Greatly, then the valve core opening of flow controller 5 is smaller, thus in the start-up course of auxiliary executing agency 7, with auxiliary executing agency 7 Spool Zhang get Yue open, the fewer result of the hydraulic oil obtained from conventional actuator 6 instead.In positive flow system, liquid Pressure oil tendency flows to the small executing agency of load pressure, therefore, under 5 throttling action of flow controller, will obtain 3Mpa pressure originally The auxiliary executing agency 7 of power finally inputs the flow for obtaining less pump;However, the only step is also unable to reach this hair Improving eyesight, because under normal circumstances, the operating pressure of auxiliary executing agency 7 may be consistently less than the pressure of conventional actuator 6, So needing Article 2 approach further to adjust;
Article 2 approach: when the pressure signal measured is sent to by first pressure testing agency and second pressure testing agency Both after controller 8, preset program will be compared two pressure values in the controller 8, take difference or take Ratio and then control is adjusted to the output power of hydraulic pump 1.Specifically, controller 8 according to the difference or ratio come Controlling hydraulic pump 1 reduces output power, and the amount specifically reduced depends on the size of the difference or ratio.For example, by hydraulic pump 1 Output flow be reduced to be equivalent to the total flow (dropping to 60L/min from 100L/min) of 60L/min be provided, it is final synchronous to realize Reduce the purpose being assigned in auxiliary executing agency 7 with the flow of conventional actuator 6;Final effect is to assist execution machine Structure 7 slowly turns round, and conventional actuator 6 also can be moved slowly, and the two movement is able to maintain consistent harmony substantially, so that operation Hand is easy manipulation.
In the actual operation process, above-mentioned two approach in no particular order, carry out simultaneously.
To sum up, compared with the prior art, the present embodiment is brought the following benefits:
The present invention to excavator conventional actuator 6 and assists executing agency 7 respectively by two pressure-detecting devices Operating pressure is detected, and controller 8 based on the received hold to determine and calculate excavator conventional actuator 6 and auxiliary by pressure The operator precedence sequence of row mechanism 7, and by the control to both flow controller 5 and hydraulic pump 1, to match auxiliary executing agency 7 Assignment of traffic between conventional actuator 6 realizes that excavator conventional actuator 6 and auxiliary execute the association between structure It adjusts, achievees the purpose that excavator miscellaneous function works normally.
In addition, the present invention is developed under the premise of not changing existing positive flow system for ensuring conventional actuator 6 With the control system of auxiliary 7 composition operation harmony of executing agency, have the advantages that development difficulty is low.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, modifies, replacement and variant.

Claims (10)

1. a kind of excavator Auxiliary Functions Control System, including conventional actuator and auxiliary executing agency, it is characterised in that: also Including controller, hydraulic pump, first pressure testing agency, second pressure testing agency, proportion magnetic valve and flow controller, described The pressure of one pressure detection mechanism and second pressure testing agency for detection conventional actuator respectively and auxiliary executing agency Value, and the pressure value is sent to the controller respectively, the controller is according to the pressure value received and according to setting Process control hydraulic pump output power;The hydraulic pump connects the conventional actuator, for conventional actuator Flow is provided;The auxiliary executing agency connects the conventional actuator, for distributing flow, institute from conventional actuator It states flow controller to be connected between the conventional actuator and auxiliary executing agency, flow controller is used for according to the proportion magnetic valve Pressure signal and control flow direction auxiliary executing agency uninterrupted.
2. excavator Auxiliary Functions Control System as described in claim 1, it is characterised in that: the conventional actuator includes Scraper bowl, dipper or swing arm;The auxiliary executing agency includes the hydraulic shear with revolute function, nutation type scraper bowl, quartering hammer or rotation Turn grab bucket.
3. excavator Auxiliary Functions Control System as described in claim 1, it is characterised in that: it further include auxiliary operation mechanism, The auxiliary operation mechanism is connect with controller, and the controller is for after amplifying the input signal of auxiliary operation mechanism It is sent to the proportion magnetic valve.
4. excavator Auxiliary Functions Control System as claimed in claim 3, it is characterised in that: the auxiliary operation mechanism includes Operation button or operation handle.
5. excavator Auxiliary Functions Control System as described in claim 1, it is characterised in that: the controller is based on LMS Control the controller of program.
6. excavator Auxiliary Functions Control System as described in claim 1, it is characterised in that: when the first pressure detection machine When the pressure value that structure detects is greater than the pressure value that second pressure testing agency detects, the controller control hydraulic pump is reduced Output power.
7. excavator Auxiliary Functions Control System as claimed in claim 6, it is characterised in that: the controller is according to described The ratio for the pressure value that the pressure value that one pressure detection mechanism detects is detected with second pressure testing agency is hydraulic to control Pump reduces the amount of output power.
8. excavator Auxiliary Functions Control System as described in claim 1, it is characterised in that: the auxiliary executing agency also wraps Auxiliary body's spool is included, the proportion magnetic valve is used to control the openings of sizes of auxiliary body's spool, auxiliary body's spool Opening and proportion magnetic valve pressure signal be in positive relationship.
9. excavator Auxiliary Functions Control System as claimed in claim 8, it is characterised in that: the valve core opening of the flow controller Valve core opening with the miscellaneous function is being in inverse relationship.
10. a kind of excavator, it is characterised in that: controlled including excavator miscellaneous function as described in any one of claim 1 to 9 System.
CN201910579293.6A 2019-06-28 2019-06-28 Excavator auxiliary function control system and excavator Active CN110409544B (en)

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