CN108086393A - A kind of hydraulic crawler excavator vibrating excavation control system based on proportioning valve - Google Patents
A kind of hydraulic crawler excavator vibrating excavation control system based on proportioning valve Download PDFInfo
- Publication number
- CN108086393A CN108086393A CN201611030868.1A CN201611030868A CN108086393A CN 108086393 A CN108086393 A CN 108086393A CN 201611030868 A CN201611030868 A CN 201611030868A CN 108086393 A CN108086393 A CN 108086393A
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- CN
- China
- Prior art keywords
- control system
- proportioning valve
- hydraulic crawler
- crawler excavator
- vibrating
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Operation Control Of Excavators (AREA)
Abstract
A kind of hydraulic crawler excavator vibrating excavation control system based on proportioning valve, it is proposed that a kind of to control proportioning valve to realize the method for vibration excavation, for soil of different nature with microcontroller.Using different vibration amplitude and vibration frequency, to reach reduction excavating resistance, reduce energy expenditure and improve the purpose of operating efficiency.The control system, which has reached, reduces excavating resistance in operation process, lower energy consumption, improve the purpose of work efficiency, this provides a brand-new thinking for the energy saving and high-efficient homework of engineering machinery.
Description
Technical field
The present invention relates to a kind of hydraulic crawler excavator vibrating excavation control system based on proportioning valve, suitable for machinery field.
Background technology
Hydraulic crawler excavator is widely used with it, creates value height in occupation of space of top prominence in engineering machinery, is native stone
The main construction machinery just excavated, in fields hairs such as the energy, traffic, irrigation and water conservancy, city-building and modernization military engineerings
Wave important role.At the same time, excavator operation condition is more severe, and load change is big, and in operation process by
Power situation is sufficiently complex, therefore substantial amounts of excavation power is consumed in mining process, and the utilization ratio of energy is than relatively low.And mesh
As previous the work capacity of excavator is improved by increasing excavation power.As social progress and user are to mechanical equipment height
Energy saving and automation requirement continuous improvement is imitated, a kind of more effective, rational method how is explored, makes excavator in operation
Reach the work capacity of low energy consumption, high efficiency and bigger in journey, and with certain adaptive ability, this is excavated for improving
The comprehensive performance of machine seeks new excavation and novel energy-saving method, and the overall technology level for improving China's excavator suffers from very
Important strategic importance.
The content of the invention
The present invention proposes a kind of hydraulic crawler excavator vibrating excavation control system based on proportioning valve, it is proposed that a kind of with single
Piece machine controls proportioning valve to realize the method for vibration excavation, for soil of different nature.Using different vibration amplitudes and shake
Dynamic frequency to reach reduction excavating resistance, reduces energy expenditure and improves the purpose of operating efficiency.
The technical solution adopted in the present invention is：
The executive component of the control system is the bucket cylinder of hydraulic crawler excavator, is controlled for convenience, by the elder generation of former excavator
It leads pressure-reducing control valve and makes electro-hydraulic proportional valve into, and increase a three position directional valve 2.
The hydraulic cylinder is controlled by main control valve 5, is the multi-way valve of original system.The oil pressure of proportioning valve is supplied by constant displacement pump
It gives, the aperture of proportioning valve is directly proportional to control signal, thus the oil inlet quantity of the aperture of main control valve and oil cylinder is and control signal
Size it is directly proportional.
It is safe and reliable, using dual signal as system controller that the control system, which selects ATMEL89C51 microcontrollers,
Effectively start system.
The entire control system is by sensor, four part group of man-machine interface, singlechip controller and signal generating circuit
Into.Sensor is mainly used to detect the pressure of operating cylinder, so as to judge the cutting resistance of scraper bowl crown and determine that excavator is
It is no that vibrating drag reduction is taken to excavate mode；Transmission equipment of the man-machine interface as signal is completed the storage of Faults by Vibrating and is repaiied
Change, using preservation of data etc.；Signal generating circuit is mainly used to generate required vibration signal；It then completes controller part
The data for uniting all calculate and logical operation, and call corresponding function mould according to operational order and the current operation mode of system
Block is to complete to act accordingly.
Power-down protection apparatus is added using self diagnosis on the control system hardware, program trap, software and hardware are set on software
With reference to the stability and anti-interference of strengthening system.
The beneficial effects of the invention are as follows：The control system, which has reached, reduces excavating resistance in operation process, lower energy consumption, carry
The purpose of high workload efficiency, this provides a brand-new thinking for the energy saving and high-efficient homework of engineering machinery.
Description of the drawings
Fig. 1 is the hydraulic system of the present invention（Part）Schematic diagram.
Fig. 2 is the hardware elementary diagram of the present invention.
Fig. 3 is the working software flow chart of the present invention.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Such as Fig. 1, in general, realizing the method for digger operating device vibration has two classes, first, the knot to equipment
Structure is transformed；First, it is realized by system control.Because excavator structure is relatively ripe, and if by machine
Structure is transformed to generate required vibration, this just needs to change existing operating mechanism and additional vibrator, therefore
The application of this method has larger limitation.
Executive component is the bucket cylinder of hydraulic crawler excavator, is controlled for convenience, by guide's pressure-reducing control of former excavator
Valve processed makes electro-hydraulic proportional valve into, and increases a three position directional valve 2.Hydraulic cylinder is controlled by main control valve 5, is the more of original system
Road valve.The oil pressure of proportioning valve is supplied by constant displacement pump, and the aperture of proportioning valve is directly proportional to control signal, thus the aperture of main control valve
It is directly proportional to the size of control signal with the oil inlet quantity of oil cylinder.It states control system and selects ATMEL89C51 microcontrollers as system
Controller is safe and reliable, using dual signal effectively start system.
Such as Fig. 2, the operation principle of system is exactly the vibration by electro-hydraulic proportional valve to control bucket cylinder to generate required,
, according to the nature and characteristic of excavated soil, the vibration signal for choosing certain frequency and amplitude is added in step signal for we, as
The input signal of electro-hydraulic proportional valve.Change excavation speed, as long as changing the amplitude of step signal.In addition, in order to commutate
Steadily, reduce adverse effect of the vibration to mechanism to the greatest extent, slope can be added to input signal of the sinusoidal signal as proportioning valve.
Such as Fig. 3, entire control system is by sensor, four part of man-machine interface, singlechip controller and signal generating circuit
Composition.Sensor is mainly used to detect the pressure of operating cylinder, so as to judge the cutting resistance of scraper bowl crown and determine excavator
Vibrating drag reduction whether is taken to excavate mode；Transmission equipment of the man-machine interface as signal, complete Faults by Vibrating storage and
It changes, using preservation of data etc.；Signal generating circuit is mainly used to generate required vibration signal；It then completes controller part
All data of system calculate and logical operation, and call corresponding function according to operational order and the current operation mode of system
Module is to complete to act accordingly.Power-down protection apparatus is added using self diagnosis on control system hardware, on software program is set to fall into
Trap, software and hardware combining, the stability and anti-interference of strengthening system.
Such as Fig. 3, because the realization that excavation is vibrated under manual mode operates relevant control switch mainly by operating personnel and has come
Into therefore, working software mainly completes the realization of vibrating drag reduction under automatic mode.The major function of working software is to fulfil assignment
The acquisition of oil cylinder working-pressure data in the process, the then cutting resistance according to suffered by oil cylinder working-pressure calculates scraper bowl this moment, and with
The threshold value of cutting resistance is compared to decide whether to take in the form of vibrating drag reduction.If it is required, then it is inputted according to system
The information such as vibration frequency, the type of amplitude and vibration signal generate corresponding control signal and realize that vibration is excavated.
Claims (5)
1. a kind of hydraulic crawler excavator vibrating excavation control system based on proportioning valve, it is characterized in that：The execution of the control system
Element is the bucket cylinder of hydraulic crawler excavator, controls, guide's pressure-reducing control valve of former excavator is made into electro-hydraulic for convenience
Proportioning valve, and increase a three position directional valve 2.
2. a kind of hydraulic crawler excavator vibrating excavation control system based on proportioning valve according to claim 1, it is characterized in that：
The hydraulic cylinder is controlled by main control valve 5, is the multi-way valve of original system, and the oil pressure of proportioning valve is supplied by constant displacement pump, proportioning valve
Aperture it is directly proportional to control signal, thus the oil inlet quantity of the aperture of main control valve and oil cylinder with the size of control signal into just
Than.
3. a kind of hydraulic crawler excavator vibrating excavation control system based on proportioning valve according to claim 1, it is characterized in that：
It is safe and reliable, using dual signal effectively start as system controller that the control system, which selects ATMEL89C51 microcontrollers,
System.
4. a kind of hydraulic crawler excavator vibrating excavation control system based on proportioning valve according to claim 1, it is characterized in that：
The entire control system is made of sensor, man-machine interface, singlechip controller and four part of signal generating circuit, sensor
It is mainly used to detect the pressure of operating cylinder, so as to judge the cutting resistance of scraper bowl crown and determine whether excavator takes vibration
Drag reduction excavates mode；Transmission equipment of the man-machine interface as signal, complete Faults by Vibrating storage and modification, using data
Preservation etc.；Signal generating circuit is mainly used to generate required vibration signal；Then complete all numbers of system in controller part
According to calculating and logical operation, and according to operational order and the current operation mode of system corresponding function module is called to complete phase
The action answered.
5. a kind of hydraulic crawler excavator vibrating excavation control system based on proportioning valve according to claim 1, it is characterized in that：
Power-down protection apparatus is added using self diagnosis on the control system hardware, program trap, software and hardware combining, enhancing are set on software
The stability and anti-interference of system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611030868.1A CN108086393A (en) | 2016-11-22 | 2016-11-22 | A kind of hydraulic crawler excavator vibrating excavation control system based on proportioning valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611030868.1A CN108086393A (en) | 2016-11-22 | 2016-11-22 | A kind of hydraulic crawler excavator vibrating excavation control system based on proportioning valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108086393A true CN108086393A (en) | 2018-05-29 |
Family
ID=62169691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611030868.1A Pending CN108086393A (en) | 2016-11-22 | 2016-11-22 | A kind of hydraulic crawler excavator vibrating excavation control system based on proportioning valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108086393A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111321769A (en) * | 2018-12-13 | 2020-06-23 | 中国人民解放军63983部队 | Vibration excavation system assisting operation by utilizing resonance principle |
| CN111539088A (en) * | 2019-01-21 | 2020-08-14 | 中国人民解放军63983部队 | Method for determining optimal amplitude control parameter of vibration excavation operation system |
-
2016
- 2016-11-22 CN CN201611030868.1A patent/CN108086393A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111321769A (en) * | 2018-12-13 | 2020-06-23 | 中国人民解放军63983部队 | Vibration excavation system assisting operation by utilizing resonance principle |
| CN111539088A (en) * | 2019-01-21 | 2020-08-14 | 中国人民解放军63983部队 | Method for determining optimal amplitude control parameter of vibration excavation operation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180529 |
|
| WD01 | Invention patent application deemed withdrawn after publication |