CN202482914U - Hydraulic control excitation equipment for excavator - Google Patents
Hydraulic control excitation equipment for excavator Download PDFInfo
- Publication number
- CN202482914U CN202482914U CN201220119258XU CN201220119258U CN202482914U CN 202482914 U CN202482914 U CN 202482914U CN 201220119258X U CN201220119258X U CN 201220119258XU CN 201220119258 U CN201220119258 U CN 201220119258U CN 202482914 U CN202482914 U CN 202482914U
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- electrically connected
- hydraulic
- signal controller
- excavator
- analog
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Abstract
Hydraulic control excitation equipment for an excavator comprises a control handle. The control handle is electrically connected with an excitation control button, the excitation control button is electrically connected with a signal controller, the signal controller is electrically connected with an electro-hydraulic proportional valve which is electrically connected with a throttle valve, the throttle valve is connected with a hydraulic oil cylinder, the hydraulic oil cylinder is electrically connected with an actuation mechanism, the actuation mechanism is connected with a stress sensor, the stress sensor is electrically connected with an analog to digital conversion analyzer, and the analog to digital conversion analyzer is connected with the signal controller in bidirectional mode. The hydraulic control excitation equipment for the excavator is simple and compact in structure, stable to work, low in energy consumption, long in service life, wide in application scope, free of improving a bucket structure, easy to implement and capable of achieving low cost.
Description
Technical field
The utility model relates to a kind of excavator and uses the hydraulic control excitational equipment.
Background technology
Excavator is cut the earth and is divided into static soil cutting and dynamic soil cutting.Soil cutting is a very complicated process.During static cutting soil, when cutter with after soil contacts, owing to soil has certain intensity, when cutting force did not reach the strength limit of soil, soil produced distortion under the effect of cutting force; Simultaneously along with cutting force raises gradually, reach the strength limit of soil when cutting force after, soil begins to be destroyed, cutting force no longer increases; After whole soil block was destroyed, cutting force descended rapidly.During vibrocutting soil, not quite identical when the variation of cutting force is cut with static state, when dynamically cutting soil, loading velocity is very fast; When cutter with after soil contacts, load rises rapidly, so that soil has little time distortion, has just been destroyed by cutter.Than the static state cutting, it is low that dynamically cutting has power consumption, and mechanical loss is little, the characteristics that are easy to excavate.
In general, realize that the method for digger operating device vibration has two types, a kind of is that the structure of equipment is transformed; Another kind is to control through system to realize.Because excavator structure is relatively ripe, and if through mechanism being transformed to produce required vibration, this just need change and additional vibrator existing operating mechanism, and therefore the application of this method has bigger limitation.At present, controlling what realize that digger operating device vibration adopts mostly through system is the hydraulic exciting system.
The hydraulic exciting system is divided into pump-control-motor excitation system and valve-controlled cylinder excitation system, and the empty motor excitation system of pump is to drive the hydraulic motor rotation by volume adjustable hydraulic pump, fundamentally, still belongs to inertial excitation, and its stability of controlling is not high; The valve-controlled cylinder excitation system is realized exciting through reversal valve control oil cylinder, and it can start under heavy duty, can export multiple waveform, but its flow rate of hydraulic system is big, is not easy to control, and energy consumption is higher.
The utility model content
The technical problem that the utility model will solve is to provide the low excavator of a kind of energy consumption to use the hydraulic control excitational equipment.
The technical scheme that its technical problem that solves the utility model adopts is: excavator is used the hydraulic control excitational equipment, comprises joystick, and joystick is electrically connected with the exciting control button; The exciting control button is electrically connected with signal controller; Signal controller is electrically connected with the electric-hydraulic proportion pilot valve, and the electric-hydraulic proportion pilot valve is electrically connected with choke valve, and choke valve is connected with hydraulic jack; Hydraulic jack is electrically connected with executing agency; Executing agency is connected with strain gauge, and strain gauge is electrically connected with the analog-to-digital conversion analyser, and the analog-to-digital conversion analyser is connected with signal controller is two-way.
Further, said strain gauge is fixed in the executing agency.
Further, said executing agency is a scraper bowl.
Joystick is used to produce the signal of telecommunication; The exciting control button is used for producing the stack sinusoidal signal; Signal controller is used for signal is amplified, thereby and drive the electromagnet control electric-hydraulic proportion pilot valve output control corresponding pressure of corresponding proportion in the electric-hydraulic proportion pilot valve; The electric-hydraulic proportion pilot valve is controlled the spool displacement of choke valve, and the signal of telecommunication is converted into hydraulic pressure signal; Hydraulic jack is that executing agency provides power; Strain gauge is used to detect the stress of executing agency; The analog-to-digital conversion analyser is used for the signal of telecommunication and data signal are changed each other, and sends scraper bowl vibration fill order.
The utility model is simple in structure, compact, working stability, and energy consumption is low, and long service life is applied widely, need not the scraper bowl structure is carried out any improvement, is easy to realize, realizes that cost is low.
Description of drawings
Fig. 1 is the utility model one example structure sketch map.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
With reference to Fig. 1, present embodiment comprises joystick 1, and joystick 1 is electrically connected with exciting control button 2; Exciting control button 2 is electrically connected with signal controller 3; Signal controller 3 is electrically connected with electric-hydraulic proportion pilot valve 4, and electric-hydraulic proportion pilot valve 4 is electrically connected with choke valve 5, and choke valve 5 is connected with hydraulic jack 6; Hydraulic jack 6 is electrically connected with executing agency's (scraper bowl) 7; Executing agency's (scraper bowl) 7 is connected with strain gauge 8, and strain gauge 8 is electrically connected with analog-to-digital conversion analyser 9, analog-to-digital conversion analyser 9 and 3 two-way connections of signal controller.Strain gauge 8 is fixed in executing agency's (scraper bowl) 7.
During work; The joystick 1 of leaving behind, joystick 1 produces the signal of telecommunication, presses exciting control button 2 and produces the stack sinusoidal signals; Signal controller 3 amplifies this signal of telecommunication; The signal of telecommunication after the amplification outputs to the analog-to-digital conversion analyser 9 from signal controller 3, and the electrical signal conversion after analog-to-digital conversion analyser 9 will amplify is digital signal corresponding A, simultaneously; Signal controller 3 drives the electromagnet of corresponding proportion in the electric-hydraulic proportion pilot valve 4, thus control electric-hydraulic proportion pilot valve 4 output control corresponding pressure; Electric-hydraulic proportion pilot valve 4 is controlled the displacement of choke valves 5 spools, and the signal of telecommunication is converted into hydraulic pressure signal; Oil pump capacity through choke valve 5 regulator solution compressing cylinders 6; Hydraulic jack 6 provides power for executing agency's (scraper bowl) 7, makes executing agency's (scraper bowl) 7 produce vibration, and strain gauge 8 records scraper bowl stress according to the size of scraper bowl vibration force; Simultaneously; It is the signal of telecommunication that strain gauge 8 will record the scraper bowl stress transmission, and the signal of telecommunication that is come by the scraper bowl stress transmission outputs to the analog-to-digital conversion analyser 9 from strain gauge 8, and analog-to-digital conversion analyser 9 will be digital signal corresponding B from the electrical signal conversion that strain gauge 8 is sent here; Analog-to-digital conversion analyser 9 is compared data signal A and data signal B; If data signal A and data signal B equate that then analog-to-digital conversion analyser 9 sends scraper bowl vibration instruction, executing agency's (scraper bowl) 7 begins vibration; If data signal A and data signal B are unequal; Then analog-to-digital conversion analyser 9 is sent in the signal controller 3 after this data signal B is converted into the corresponding signal of telecommunication; Signal controller 3 is again according to the signal of telecommunication that is transformed by data signal B; Readjust the multiplication factor N of joystick 1 signal of telecommunication that produces, equate until the data signal A and the data signal B of conversion once more, thereby realize control the scraper bowl vibration.
So, realize to satisfy power match requirement between hydraulic system and the motor, making hydraulic system be in the optimal economic operating mode all the time through above step, to reduce energy loss to the adjustment of scraper bowl vibration force size.
Claims (3)
1. excavator is used the hydraulic control excitational equipment, it is characterized in that, comprises joystick; Joystick is electrically connected with the exciting control button, and the exciting control button is electrically connected with signal controller, and signal controller is electrically connected with the electric-hydraulic proportion pilot valve; The electric-hydraulic proportion pilot valve is electrically connected with choke valve; Choke valve is connected with hydraulic jack, and hydraulic jack is electrically connected with executing agency, and executing agency is connected with strain gauge; Strain gauge is electrically connected with the analog-to-digital conversion analyser, and the analog-to-digital conversion analyser is connected with signal controller is two-way.
2. excavator according to claim 1 is used the hydraulic control excitational equipment, it is characterized in that, said strain gauge is fixed in the executing agency.
3. excavator according to claim 1 and 2 is used the hydraulic control excitational equipment, it is characterized in that, said executing agency is a scraper bowl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220119258XU CN202482914U (en) | 2012-03-27 | 2012-03-27 | Hydraulic control excitation equipment for excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220119258XU CN202482914U (en) | 2012-03-27 | 2012-03-27 | Hydraulic control excitation equipment for excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202482914U true CN202482914U (en) | 2012-10-10 |
Family
ID=46957344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220119258XU Expired - Fee Related CN202482914U (en) | 2012-03-27 | 2012-03-27 | Hydraulic control excitation equipment for excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202482914U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587446A (en) * | 2012-03-27 | 2012-07-18 | 昆山航天智能技术有限公司 | Hydraulic control shock excitation equipment for vibration excavator |
| CN103882902A (en) * | 2014-03-12 | 2014-06-25 | 中国人民解放军63983部队 | Control system of embedded automatic vibration mining device |
-
2012
- 2012-03-27 CN CN201220119258XU patent/CN202482914U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587446A (en) * | 2012-03-27 | 2012-07-18 | 昆山航天智能技术有限公司 | Hydraulic control shock excitation equipment for vibration excavator |
| CN103882902A (en) * | 2014-03-12 | 2014-06-25 | 中国人民解放军63983部队 | Control system of embedded automatic vibration mining device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20160327 |