CN201809801U - Control integration module of excavator hydraulic pilot oil source - Google Patents
Control integration module of excavator hydraulic pilot oil source Download PDFInfo
- Publication number
- CN201809801U CN201809801U CN2010205121457U CN201020512145U CN201809801U CN 201809801 U CN201809801 U CN 201809801U CN 2010205121457 U CN2010205121457 U CN 2010205121457U CN 201020512145 U CN201020512145 U CN 201020512145U CN 201809801 U CN201809801 U CN 201809801U
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- Prior art keywords
- valve
- control valve
- valves
- logic
- oil
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- Expired - Fee Related
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- 230000010354 integration Effects 0.000 title claims abstract description 12
- 239000012530 fluid Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 abstract 7
- 239000003921 oil Substances 0.000 description 23
- 230000000694 effects Effects 0.000 description 5
- 230000009977 dual effect Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses a control integration module of an excavator hydraulic pilot oil source, mainly comprising a plug-in mounting logic valve, check valves, a liquid control valve, a reducing valve and solenoid valves, wherein the upper end of the liquid control valve is provided with three check valves, two check valves are arranged at the upper side, and one check valve is arranged at the lower side; the left side of the liquid control valve is successively provided with the reducing valve and two solenoid valves, and the right side of the liquid control valve is provided with the logic valve; the two solenoid valves are connected with the reducing valve in parallel; the three check valves are jointed and connected to the liquid control valve; the liquid control valve, the reducing valve and the solenoid valves are joined; and the logic valve and the liquid control valve are jointed and then connected with the solenoid valve at the right side. In the utility model, the requirement of the excavator on the pilot oil source control system is satisfied, and one pilot servo pump is omitted so as to lower cost. The control integration module has the characteristics of compact appearance and double safe locking functions, can lock the hydraulic control valve blocks and the mechanical control valve blocks of a main multitandem valve and an assistant multitandem valve, thus the mechanical safe locking device needed by the mechanical control valve blocks is omitted.
Description
Technical field
The utility model belongs to the excavator field, relates to a kind of hydraulic control system of excavator, relates in particular to a kind of excavator hydraulic pilot Oil-source control integration module.
Background technology
At present, in China excavator field, the guide of hydraulic crawler excavator controls oil supply system and generally adopts two kinds of schemes: a kind of is by independent low pressure pioneer pump fuel feeding, control the fuel feeding of servo handle, running motor gear, servo pedal respectively through a plurality of electromagnetic valves, large excavator generally adopts this kind scheme; Another kind is directly to introduce hydraulic oil from main working barrel, controls through the guide after the reducing valve decompression of oil supply system inside again by a plurality of electromagnetic valves, controls the fuel feeding of servo handle, running motor gear etc. respectively, and mini-excavator generally adopts this kind scheme.More than safety locking electromagnetic valve in two kinds of schemes all can only the hydraulic control valve block of banked direction control valves be worked, and mini-excavator is for cost consideration, banked direction control valves is not hydraulic control entirely, walking valve block and miscellaneous function valve block adopt the control of mechanical linkage pedal usually, its machine security locking apparatus structure complexity, reliability is not high.Control oil supply system if can develop a kind of novel can lock the simultaneously main banked direction control valves and the hydraulic control valve block of auxiliary banked direction control valves and the guide of mechanically controlled valve sheet, will simplify the main valve of mini-excavator and the operating mechanism of auxiliary banked direction control valves greatly.Adopt the cartridge valve structure, the modular Integrated design makes valve block structure compactness, profile small and exquisite.Therefore, a kind of can to adapt to the hydraulic pilot Oil-source control integration module that mini-excavator uses necessary in development.
The utility model content
The purpose of this utility model is to provide the excavator hydraulic pilot Oil-source control integration module that a kind of compact conformation, cost are lower, have dual safety locking function.
The technical solution of the utility model is: excavator hydraulic pilot Oil-source control integration module mainly comprises plug-in logic valve, one way valve, pilot operated valve device, reducing valve, electromagnetic valve; Be provided with three one way valves in the upper end of pilot operated valve device, two on top, and one in bottom; Set gradually reducing valve and two electromagnetic valves in the left side of pilot operated valve device, logic valve is set on the right side of pilot operated valve device.Two electromagnetic valves are connected with reducing valve side by side, and reducing valve and logic valve and following one way valve converge and lead to hydraulic fluid port P3, and two one way valves of top lead to hydraulic fluid port P1, P2 respectively; Three one way valves converge and are attempted by on the pilot operated valve device, and pilot operated valve device and reducing valve, electromagnetic valve converge and lead to oil return inlet T; Logic valve converges with pilot operated valve device and is connected with the right side electromagnetic valve and leads to hydraulic fluid port A2, and logic valve leads to hydraulic fluid port P4, and the left side electromagnetic valve leads to hydraulic fluid port A1; Pressure tap M1, M2, M3, M4 lead to hydraulic fluid port P1, P2, P3 and reducing valve respectively.
The utility model adopts the good effect that produces after the technique scheme to be: satisfy hydraulic crawler excavator the guide is controlled the demand of oil supply system, save guide's servopump, reduce cost.The external form compactness has dual safety locking function, and the hydraulic control valve block and the mechanically controlled valve sheet of lockable master banked direction control valves and auxiliary banked direction control valves are save the needed machine security locking of mechanically controlled valve sheet device.
Description of drawings
Fig. 1 is the hydraulic schematic diagram of the utility model excavator hydraulic pilot Oil-source control integration module.
Fig. 2 is the outline drawing of the utility model excavator hydraulic pilot Oil-source control integration module.
The specific embodiment
As Fig. 1～shown in Figure 2, excavator hydraulic pilot Oil-source control integration module mainly comprises plug-in logic valve (1), one way valve (2), pilot operated valve device (3), reducing valve (4), electromagnetic valve (5).Be provided with three one way valves (2) in the upper end of pilot operated valve device (3), two on top, and one in bottom; Set gradually reducing valve (4) and two electromagnetic valves (5) in the left side of pilot operated valve device (3), logic valve (1) is set on the right side of pilot operated valve device (3).The oil-in of two electromagnetic valves (5) is connected with the pressure-reduction outlet of reducing valve (4) side by side, the oil-in of the one way valve (2) of reducing valve (4) and logic valve (1) and bottom crosses and leads to hydraulic fluid port P3, and the oil-in of two one way valves (2) of top leads to hydraulic fluid port P1, P2 respectively; The oil-out of three one way valves (2) merges together the oil-in that is attempted by pilot operated valve device (3), and the drain tap of the oil-out of pilot operated valve device (3) and the drain tap on right side thereof and reducing valve (4), the oil return opening of electromagnetic valve (5) merge together and lead to oil return inlet T; Logic valve (1) and pilot operated valve device (3) left side oil circuit merges together and is connected with the oil-out of right side electromagnetic valve (5) and leads to hydraulic fluid port A2, and the oil-out of logic valve (1) leads to hydraulic fluid port P4, and the oil-out of left side electromagnetic valve (5) leads to hydraulic fluid port A1; Pressure tap M1, M2, M3, M4 lead to the pressure-reduction outlet of hydraulic fluid port P1, P2, P3 and reducing valve (4) respectively.
P1, P2 mouth connect two oil-ins of main banked direction control valves respectively, lead to pilot operated valve device (3) through one way valve (2); The oil that comes of P3 mouth leads to auxiliary banked direction control valves through logic valve (1), one way valve (2) and reducing valve (4) and through the P4 mouth; Lead to electromagnetic valve (5) through post-decompression low pressure oil, the electromagnetic valve in left side (5) is responsible for the walking speed change, is used for controlling the high, low speed switching of crawler travel motor; The electromagnetic valve on right side (5) plays the safety locking effect, and the spool left side of pilot operated valve device (3) and logic valve (1) is guided low pressure oil into through guide's oil sources piece internal oil passages in the supply in the servo handle low pressure oil of control guide source simultaneously.The effect of three one way valves (2) is that the oil circuit of P1, P2 and P3 is interfered with each other, and the effect of the one way valve (2) of below and logic valve (1) simultaneously is to make this oil circuit exist suitable back pressure to guarantee the operate as normal of reducing valve (4).
Utilize the depressurization of reducing valve (4), draw the low pressure oil sources from main oil pump and use, thereby saved guide's servo oil pump for guide's servo-drive system; The one way valve (2) of logic valve (1) and below is even make this oil circuit still exist suitable back pressure to guarantee the operate as normal of reducing valve (4) when the banked direction control valves meta; Pilot operated valve device (3) plays dual safety locking effect, if right side electromagnetic valve (5) no power, the in-line of then main banked direction control valves and auxiliary banked direction control valves communicates with fuel tank through one way valve (2), pilot operated valve device (3), oil return inlet T, the hydraulic control valve block of main banked direction control valves is not because the servo handle of guide has oil sources and attonity, and the valve block of the machinery control of main simultaneously banked direction control valves and auxiliary banked direction control valves is attonity also.After adopting the utility model, can reduce integral vehicle cost, reduce pipeline and connect, simplify installation and maintenance, reduce leakage point, performance is better than traditional hydraulic pilot oil supply system.
Claims (1)
1. an excavator hydraulic pilot Oil-source control integration module mainly comprises: plug-in logic valve (1), one way valve (2), pilot operated valve device (3), reducing valve (4), electromagnetic valve (5); It is characterized in that: be provided with three one way valves (2) in the upper end of pilot operated valve device (3), two on top, and one in bottom; Set gradually reducing valve (4) and two electromagnetic valves (5) in the left side of pilot operated valve device (3), logic valve (1) is set on the right side of pilot operated valve device (3); Two electromagnetic valves (5) are connected with reducing valve (4) side by side, and reducing valve (4) and logic valve (1) and following one way valve (2) converge and lead to hydraulic fluid port P3, and two one way valves (2) of top lead to hydraulic fluid port P1, P2 respectively; Three one way valves (2) converge and are attempted by on the pilot operated valve device (3), and pilot operated valve device (3) and reducing valve (4), electromagnetic valve (5) converge and lead to oil return inlet T; Logic valve (1) converges with pilot operated valve device (3) and is connected with right side electromagnetic valve (5) and leads to hydraulic fluid port A2, and logic valve (1) leads to hydraulic fluid port P4, and left side electromagnetic valve (5) leads to hydraulic fluid port A1; Pressure tap M1, M2, M3, M4 lead to hydraulic fluid port P1, P2, P3 and reducing valve (4) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205121457U CN201809801U (en) | 2010-09-01 | 2010-09-01 | Control integration module of excavator hydraulic pilot oil source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205121457U CN201809801U (en) | 2010-09-01 | 2010-09-01 | Control integration module of excavator hydraulic pilot oil source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201809801U true CN201809801U (en) | 2011-04-27 |
Family
ID=43892742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205121457U Expired - Fee Related CN201809801U (en) | 2010-09-01 | 2010-09-01 | Control integration module of excavator hydraulic pilot oil source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201809801U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733445A (en) * | 2012-07-12 | 2012-10-17 | 徐州徐工挖掘机械有限公司 | Pilot oil source valve group for small-size hydraulic excavator |
| CN102758808A (en) * | 2012-07-26 | 2012-10-31 | 徐州徐工挖掘机械有限公司 | Pilot oil source control block of front high-pressure filter |
| CN102996554A (en) * | 2012-11-27 | 2013-03-27 | 龙工（上海）桥箱有限公司 | Pilot oil source valve for excavator |
| CN104196809A (en) * | 2014-08-19 | 2014-12-10 | 合肥长源液压股份有限公司 | Pile-up valve for recovering and reusing energy of excavator |
| CN105605011A (en) * | 2015-12-28 | 2016-05-25 | 徐州徐工挖掘机械有限公司 | Small hydraulic excavator pilot oil source valve group |
| CN110747936A (en) * | 2019-10-28 | 2020-02-04 | 上海三一重机股份有限公司 | Electromagnetic valve bank, use method thereof and engineering machinery |
| CN111691492A (en) * | 2020-06-30 | 2020-09-22 | 徐州徐工挖掘机械有限公司 | Hydraulic system of excavator and excavator |
-
2010
- 2010-09-01 CN CN2010205121457U patent/CN201809801U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733445A (en) * | 2012-07-12 | 2012-10-17 | 徐州徐工挖掘机械有限公司 | Pilot oil source valve group for small-size hydraulic excavator |
| CN102733445B (en) * | 2012-07-12 | 2014-12-03 | 徐州徐工挖掘机械有限公司 | Pilot oil source valve group for small-size hydraulic excavator |
| CN102758808A (en) * | 2012-07-26 | 2012-10-31 | 徐州徐工挖掘机械有限公司 | Pilot oil source control block of front high-pressure filter |
| CN102758808B (en) * | 2012-07-26 | 2015-03-11 | 徐州徐工挖掘机械有限公司 | Pilot oil source control block of front high-pressure filter |
| CN102996554A (en) * | 2012-11-27 | 2013-03-27 | 龙工（上海）桥箱有限公司 | Pilot oil source valve for excavator |
| CN104196809A (en) * | 2014-08-19 | 2014-12-10 | 合肥长源液压股份有限公司 | Pile-up valve for recovering and reusing energy of excavator |
| CN105605011A (en) * | 2015-12-28 | 2016-05-25 | 徐州徐工挖掘机械有限公司 | Small hydraulic excavator pilot oil source valve group |
| CN110747936A (en) * | 2019-10-28 | 2020-02-04 | 上海三一重机股份有限公司 | Electromagnetic valve bank, use method thereof and engineering machinery |
| CN111691492A (en) * | 2020-06-30 | 2020-09-22 | 徐州徐工挖掘机械有限公司 | Hydraulic system of excavator and excavator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FIRST TRACTOR CO., LTD. Free format text: FORMER OWNER: CHINA YITUO GROUP CO., LTD. Effective date: 20130725 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 471039 LUOYANG, HENAN PROVINCE TO: 471004 LUOYANG, HENAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130725 Address after: 471004 Jianshe Road, Jianxi, Henan, No. 154, Patentee after: First Tractor Co., Ltd. Address before: 471039 No. 39, Xiyuan Road, Jianxi District, Henan, Luoyang Patentee before: China Yituo Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20180901 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |