CN107747331A - Crawler-mounted excavator auto-manual walking hydra-electric system - Google Patents
Crawler-mounted excavator auto-manual walking hydra-electric system Download PDFInfo
- Publication number
- CN107747331A CN107747331A CN201710304163.2A CN201710304163A CN107747331A CN 107747331 A CN107747331 A CN 107747331A CN 201710304163 A CN201710304163 A CN 201710304163A CN 107747331 A CN107747331 A CN 107747331A
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- Prior art keywords
- way
- valve
- magnetic valve
- control
- walked
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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
- E02F9/22—Hydraulic or pneumatic drives
-
- 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
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
-
- 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
- E02F9/2278—Hydraulic circuits
- E02F9/2292—Systems with two or more pumps
Landscapes
- 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 crawler-mounted excavator auto-manual is walked hydra-electric system, and the pressure oil port of 3-position 4-way proportion magnetic valve is connected to two-position four-way solenoid valve, and two-position four-way solenoid valve connects the P mouths of walking pilot valve when being powered, and disconnects oil circuit during power-off；Two output ends of 3-position 4-way proportion magnetic valve connect two two-position three way magnetic valves respectively, and disengaging pressure oil does not connect mutually when two-bit triplet magnetic valve powers off or so, two oil-outs connections during energization；In manual state of a control, electrical system control two-position four-way solenoid valve is powered, two-bit triplet magnetic valve and the power-off of 3-position 4-way proportion magnetic valve；In automatic control state, the power-off of electrical system control two-position four-way solenoid valve, two-bit triplet magnetic valve and 3-position 4-way proportion magnetic valve are powered.Its advantage is to realize to walk with the operable excavator of manual/auto double acting, reduces the labor intensity of people, can also be walked by wireless remote control excavator.
Description
Technical field
The present invention relates to crawler-mounted excavator auto-manual walking hydra-electric system, more particularly to a kind of crawler type is excavated
Machine auto-manual walking hydra-electric system.
Background technology
Hydraulic crawler excavator as the main machine that a kind of fast and efficiently Construction Operating Machinery is in engineering machinery,
It is one of main mechanical in restoration in earth-rock construction engineering, is referred to as " king of engineering machinery " in the industry, it is widely used in work
The industry such as industry and civil buildings, communications and transportation, hydraulic and electric engineering engineering, farmland improvement, mine excavation and modernization military engineering
Mechanized construction in.
Excavator walking at present can only be controlled hydraulic valve to realize that excavator is walked by walking pilot valve, can not realize excavator
Automatic Pilot walking function, driver is easily tired during walking at a distance, and manual operation walking pilot valve easily causes first pilot
Fluctuation, so as to cause excavator walking to be rocked, increase is automatically controlled can to realize the walking for automatically controlling excavator, it is possible to reduce dig
Rocked during pick machine straight line moving before and after excavator caused by manual operation.
The content of the invention
It is an object of the invention to provide one kind by increasing proportional control solenoid valve, change the control of walking guide's hydraulic pressure
Principle realizes Function for Automatic Pilot, realizes that excavator advances, retreats, the Redundant Control of straight line moving function, can be with so as to realize
The manual/auto operable excavator walking of double acting, reduces the labor intensity of people, can also be walked by wireless remote control excavator
Crawler-mounted excavator auto-manual walking hydra-electric system.
The solution of the present invention is such：
A kind of crawler-mounted excavator auto-manual is walked hydra-electric system, is provided with 3-position 4-way proportion magnetic valve, and described three
The pressure oil port of position four-way proportion magnetic valve is connected to two-position four-way solenoid valve, and two-position four-way solenoid valve connects walking when being powered first
The P mouths of pilot valve, oil circuit is disconnected during power-off；Two output ends of the 3-position 4-way proportion magnetic valve connect two two three respectively
Three-way electromagnetic valve, wherein：What the left lateral that two outputs of one two-bit triplet magnetic valve are coupled with walking hydraulic control valve was walked
The XAtr that XAtl, right lateral are walked, two outputs of another two-bit triplet magnetic valve are coupled with the left lateral of walking hydraulic control valve
The XBtr that XBtl, the right lateral walked are walked；Disengaging pressure oil does not connect mutually during two-bit triplet magnetic valve power-off or so, two during energization
Individual oil-out connection；In manual state of a control, electrical system control two-position four-way solenoid valve is powered, two-bit triplet magnetic valve and three
Position four-way proportion magnetic valve power-off；In automatic control state, the power-off of electrical system control two-position four-way solenoid valve, two-bit triplet electricity
Magnet valve and 3-position 4-way proportion magnetic valve are powered.
More specifically technical scheme also includes：The 3-position 4-way proportion magnetic valve connects long-range potentiometer control, passes through
The size of the size control 3-position 4-way proportion magnetic valve opening of control electric current.
Further：The 3-position 4-way proportion magnetic valve connects wireless remote controller, is controlled by wireless remote controller
The size of 3-position 4-way proportion magnetic valve opening.
It is an advantage of the invention that by increasing proportional control solenoid valve, the control principle for changing walking guide's hydraulic pressure is realized certainly
It is dynamic to drive function, realize that excavator advances, retreat, the Redundant Control of straight line moving function, can be with manual/auto double so as to realize
Operable excavator walking is acted on, the labor intensity of people is reduced, can also be walked by wireless remote control excavator.
Brief description of the drawings
Fig. 1 is the hydraulic schematic diagram of the present invention.
Reference is in figure：Left driving speed reducer and motor 1, walking hydraulic control valve 2, right driving speed reducer and motor
3rd, two-position three way magnetic valve 4,3-position 4-way proportion magnetic valve 5, power source 6, hydraulic oil container 7, main pump 8, guide lock valve group 9,
Two-position four-way solenoid valve 10, walking pilot-actuated valve 11.
Embodiment
The present invention is provided with 3-position 4-way proportion magnetic valve 5, and the pressure oil port of the 3-position 4-way proportion magnetic valve 5 is connected to
Two-position four-way solenoid valve 10, two-position four-way solenoid valve 10 connect the P mouths of walking pilot valve 11 when being powered, oil are disconnected during power-off
Road；Two output ends of the 3-position 4-way proportion magnetic valve 5 connect two two-position three way magnetic valves 4 respectively, wherein：One two
The XAtr that XAtl, the right lateral that the left lateral that two outputs of position-3-way solenoid valve 4 are coupled with walking hydraulic control valve 2 is walked are walked, separately
XBtl, the right lateral that the left lateral that two outputs of one two-bit triplet magnetic valve 4 are coupled with walking hydraulic control valve 2 is walked are walked
XBtr；Disengaging pressure oil does not connect mutually when the two-bit triplet magnetic valve 4 powers off or so, two oil-outs connections during energization；
Manual state of a control, electrical system control two-position four-way solenoid valve 10 are powered, two-bit triplet magnetic valve 4 and 3-position 4-way ratio electricity
Magnet valve 5 powers off；In automatic control state, electrical system control two-position four-way solenoid valve 10 powers off, two-bit triplet magnetic valve 4 and three
Position four-way proportion magnetic valve 5 is powered.
3-position 4-way proportion magnetic valve connects long-range potentiometer control, and 3-position 4-way ratio is controlled by the size of control electric current
The size of example magnetic valve opening.
3-position 4-way proportion magnetic valve connection wireless remote controller can also be used, three are controlled by wireless remote controller
The size of four-way proportion magnetic valve opening.
The present invention operation principle be：Two variable pumps distinguish valve fuel feeding of walking to the left and right in main pump 8, pilot control of walking
Valve 11 controls the commutation of the walking valve element of walking hydraulic control valve 2 respectively, and control left lateral is walked to subtract respectively for two walking valve element commutations
The rotating of fast machine and motor 1, right driving speed reducer and motor 3, the turning of excavator forward-reverse and cast are realized, when not
When needing excavator automatically walk, two-position two-way solenoid valve 10, which is in, connects position, 3-position 4-way proportion magnetic valve 5, two-position three way
4 equal no-voltage of magnetic valve is in cut-off position, and the pilot control oil of main pump 8 locks valve group 9 to walking pilot-actuated valve by guide
11, the pilot pressure control excavator walking of walking pilot valves output is left when two-position three way magnetic valve 4 realizes manually operated
Right pilot pressure interlocking, left and right walking is not influenceed by automatically walk, when needing automatic Pilot, disconnects two-position four-way solenoid valve
10, two-position three way magnetic valve 4 is connected, hydraulic pilot oil locks valve group 9 by guide and arrives 3-position 4-way proportion magnetic valve 5, ratio
Magnetic valve is controlled by long-range potentiometer, and the size of electric current determines the size of proportion magnetic valve opening, so as to suppress output pressure
Size, electromagnetic proportional valve output pressure oil by two two-position three way magnetic valves 4 respectively to a left side for two travel control valves
Right advance or left and right retreat, and realize the automatically walk function of excavator, and 3-position 4-way proportion magnetic valve 5 can also be grasped wirelessly
Make, realize the wireless travelling control of excavator.Wherein：The size control of NR1 and the NR2 overflow throttle valve of walking hydraulic control valve 2
The displacement size of two variables of main pump 8 processed；One-way throttle valve in walking pilot-actuated valve 11 is reduced because manual operation is drawn
That plays operation handle rocks the mutation for causing walking pilot valve output pressure；Two-position three way magnetic valve 4 power off when or so disengaging pressure
Power oil does not connect mutually, oil-out connection during energization；
Guide locks valve group 9 and includes guide's lock-up valve, and accumulator, check valve, filter, wherein guide's lock-up valve work as excavator not
When needing walking, guide's hydraulic power source is locked, auto-manual operation does not work.
Claims (3)
- The hydra-electric system 1. a kind of crawler-mounted excavator auto-manual is walked, it is characterised in that：It is provided with 3-position 4-way ratio Magnetic valve（5）, the 3-position 4-way proportion magnetic valve（5）Pressure oil port be connected to two-position four-way solenoid valve（10）, two-position four-way Magnetic valve（10）Walking pilot valve is connected when being powered（11）P mouths, disconnect oil circuit during power-off；The 3-position 4-way ratio electromagnetism Valve（5）Two output ends connect two two-position three way magnetic valves respectively（4）, wherein：One two-bit triplet magnetic valve（4）Two Individual output is coupled with walking hydraulic control valve（2）The XAtr that walks of left lateral XAtl, the right lateral walked, another two-bit triplet electromagnetism Valve（4）Two outputs be coupled with walking hydraulic control valve（2）The XBtr that walks of left lateral XBtl, the right lateral walked；Described two Three-way magnetic valve（4）Disengaging pressure oil does not connect mutually during power-off or so, two oil-outs connections during energization；In control shape manually State, electrical system control two-position four-way solenoid valve（10）It is powered, two-bit triplet magnetic valve（4）With 3-position 4-way proportion magnetic valve （5）Power-off；In automatic control state, electrical system control two-position four-way solenoid valve（10）Power-off, two-bit triplet magnetic valve（4）With 3-position 4-way proportion magnetic valve（5）It is powered.
- The hydra-electric system 2. crawler-mounted excavator auto-manual according to claim 1 is walked, it is characterised in that：It is described 3-position 4-way proportion magnetic valve（5）Long-range potentiometer control is connected, 3-position 4-way ratio electricity is controlled by the size of control electric current Magnet valve（5）The size of opening.
- The hydra-electric system 3. crawler-mounted excavator auto-manual according to claim 1 is walked, it is characterised in that：It is described 3-position 4-way proportion magnetic valve（5）Wireless remote controller is connected, 3-position 4-way proportion magnetic valve is controlled by wireless remote controller （5）The size of opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710304163.2A CN107747331B (en) | 2017-05-03 | 2017-05-03 | Automatic and manual walking hydraulic electric system of crawler excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710304163.2A CN107747331B (en) | 2017-05-03 | 2017-05-03 | Automatic and manual walking hydraulic electric system of crawler excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107747331A true CN107747331A (en) | 2018-03-02 |
| CN107747331B CN107747331B (en) | 2021-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710304163.2A Active CN107747331B (en) | 2017-05-03 | 2017-05-03 | Automatic and manual walking hydraulic electric system of crawler excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107747331B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562445A (en) * | 2018-06-25 | 2018-09-21 | 徐州徐工挖掘机械有限公司 | A kind of hydraulic traveling mechanism testing equipment and test method |
| CN110905033A (en) * | 2019-11-25 | 2020-03-24 | 合肥工业大学 | A dual working mode excavator hydraulic system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201660918U (en) * | 2009-10-09 | 2010-12-01 | 广西玉柴重工有限公司 | Pilot control valve bank of miniature hydraulic excavating machine |
| CN202326539U (en) * | 2011-11-11 | 2012-07-11 | 北京天和众邦勘探技术股份有限公司 | Hydraulic control/electric control dual-control walk switching system for drilling machine |
| CN202418065U (en) * | 2012-01-20 | 2012-09-05 | 中船重工中南装备有限责任公司 | Running control system for rock drilling truck |
| KR20140083118A (en) * | 2012-12-24 | 2014-07-04 | 두산인프라코어 주식회사 | Method for controlling the option actuator in excavator |
| EP2949820A1 (en) * | 2013-01-23 | 2015-12-02 | Volvo Construction Equipment AB | Method for controlling driving speed of construction machinery |
-
2017
- 2017-05-03 CN CN201710304163.2A patent/CN107747331B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201660918U (en) * | 2009-10-09 | 2010-12-01 | 广西玉柴重工有限公司 | Pilot control valve bank of miniature hydraulic excavating machine |
| CN202326539U (en) * | 2011-11-11 | 2012-07-11 | 北京天和众邦勘探技术股份有限公司 | Hydraulic control/electric control dual-control walk switching system for drilling machine |
| CN202418065U (en) * | 2012-01-20 | 2012-09-05 | 中船重工中南装备有限责任公司 | Running control system for rock drilling truck |
| KR20140083118A (en) * | 2012-12-24 | 2014-07-04 | 두산인프라코어 주식회사 | Method for controlling the option actuator in excavator |
| EP2949820A1 (en) * | 2013-01-23 | 2015-12-02 | Volvo Construction Equipment AB | Method for controlling driving speed of construction machinery |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562445A (en) * | 2018-06-25 | 2018-09-21 | 徐州徐工挖掘机械有限公司 | A kind of hydraulic traveling mechanism testing equipment and test method |
| CN110905033A (en) * | 2019-11-25 | 2020-03-24 | 合肥工业大学 | A dual working mode excavator hydraulic system |
| CN110905033B (en) * | 2019-11-25 | 2021-11-23 | 合肥工业大学 | Excavator hydraulic system with double working modes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107747331B (en) | 2021-01-12 |
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