CN203214470U - Hydraulic manifold lifting control valve bank for hopper of heavy truck - Google Patents
Hydraulic manifold lifting control valve bank for hopper of heavy truck Download PDFInfo
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- CN203214470U CN203214470U CN 201320231004 CN201320231004U CN203214470U CN 203214470 U CN203214470 U CN 203214470U CN 201320231004 CN201320231004 CN 201320231004 CN 201320231004 U CN201320231004 U CN 201320231004U CN 203214470 U CN203214470 U CN 203214470U
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Abstract
The utility model relates to a hydraulic manifold lifting control valve bank. The surface of a hydraulic manifold block is provided with a control oil port Z, a pressure oil port P, a feed oil port LS, a return oil opening Y, a return oil opening T, an oil outlet port L, an oil outlet port R, a first two-position three-way proportioning reducing valve, a second two-position three-way proportioning reducing valve, a first two-position two-way hydraulic control valve, a second two-position two-way hydraulic control valve, a third two-position two-way hydraulic control valve, a fourth two-position two-way hydraulic control valve, a two-position three-way hydraulic control valve, a first shuttle valve and a second shuttle valve, wherein the first, second, third and fourth two-position two-way hydraulic control valves form a three-position four-way O-shaped electro-hydraulic control reversing control unit. According to the control valve bank disclosed by the utility model, an electro-hydraulic proportional control technology and a load sensitive control technology are adopted, accordingly a control loop is simplified, the quantity of hydraulic valves in a system is reduced, meanwhile the change of a load is tracked by the output pressure of a hydraulic pump in time, and effects of saving elements and energy sources are realized.
Description
Technical field
The utility model belongs to hydraulic control technology, particularly relates to the integrated hoist control valve group of a kind of heavy loading vehicle wagon box hydraulic pressure.
Background technique
The wagon box of heavy loading vehicle has two multi-stage telescopic oil hydraulic cylinder and control system thereof of finishing the lifting function of symmetry, has identical movement velocity in order to make the different piston of hydraulic cylinder works areas at different levels, and the structure of its control system is complicated.Usually adopt common selector valve and throttle valve for the control of the speed of multi-stage telescopic oil hydraulic cylinder, more with its supporting hydraulic control component, to be connected oil circuit long and the loop is complicated, and exist the lifting movement velocity to be subjected to the defective of load effect.
Summary of the invention
The purpose of this utility model is in order to solve the above-mentioned technical problem that heavy loading vehicle wagon box hydraulic control lifting system exists, and the integrated hoist control valve group of heavy loading vehicle wagon box hydraulic pressure that a kind of control system is comparatively simple, the lifting movement velocity is not subjected to load effect is provided.
The utility model is taked following technological scheme for achieving the above object: the integrated hoist control valve group of this hydraulic pressure comprises identical two multi-stage telescopic oil hydraulic cylinders, hydraulic manifold block and cartridge valve, feature is, described hydraulic manifold block surface is provided with control port Z, pressure hydraulic fluid port P, feedback hydraulic fluid port LS, return opening Y, oil return inlet T, oil outlet L, oil outlet R, and described cartridge valve is the 1st, the 2nd two-position three way proportional pressure-reducing valve; 1st, the 2nd, the 3rd, the 4th two-position two-way hydraulic control valve; Two-position three way hydraulic control valve and the 1st, the 2nd shuttle valve; Wherein the 1st to the 4th two-position two-way hydraulic control valve constitutes 3-position 4-way O type electricity liquid controlled reversing control unit; Be provided with connecting pipeline between the hydraulic fluid port of described oil outlet R and two multi-stage telescopic oil hydraulic cylinder rodless cavities, be provided with connecting pipeline between the hydraulic fluid port of oil outlet L and two multi-stage telescopic oil hydraulic cylinder rod chambers, feedback hydraulic fluid port LS is communicated with the control mouth of oil hydraulic pump, and return opening Y and oil return inlet T are communicated with fuel tank; Hydraulic manifold block inside is provided with following oil circuit: control port Z and the 1st, the 2nd two-position three way proportional pressure-reducing valve filler opening be communicated with oil circuit; The oil circuit that is communicated with of pressure hydraulic fluid port P and the 1st, the 2nd two-position two-way hydraulic control valve filler opening; The 2nd shuttle valve two filler openings respectively with the oil circuit that is communicated with of oil outlet L and oil outlet R; The oil circuit that is communicated with of the 2nd shuttle valve oil outlet and two-position three way hydraulic control valve filler opening; The oil circuit that is communicated with of feedback hydraulic fluid port LS and two-position three way hydraulic control valve oil outlet; The oil circuit that is communicated with of the oil outlet of the 1st two-position three way proportional pressure-reducing valve and the 2nd two-position two-way hydraulic control valve, the 3rd two-position two-way hydraulic control valve hydraulic control mouth; The oil circuit that is communicated with of the 2nd two-position three way proportional pressure-reducing valve oil outlet and the 1st two-position two-way hydraulic control valve, the 2nd two-position two-way hydraulic control valve hydraulic control mouth; The 1st shuttle valve two filler openings respectively with the oil circuit that is communicated with of the 1st, the 2nd two-position three way proportional pressure-reducing valve oil outlet; The oil circuit that is communicated with of the 1st shuttle valve oil outlet and the control port of two-position three way hydraulic control valve.
The beneficial effects of the utility model and advantage are: (1) adopts integrated plug-in type mode of structure, has reduced the quantity of forming system valve, has simplified hydraulic control circuit, has reduced hydraulic control system occupation space and weight significantly.(2) adopt the load-sensitive control technique, pressure feedback point is set namely feeds back hydraulic fluid port LS, make the delivery pressure of oil hydraulic pump, the variation that flow adapts to load, improve the efficient of system, not only reach purpose of energy saving, also avoided the lifting movement velocity to be subjected to the defective of load effect.The utlity model has outstanding advantage rational in infrastructure, that control mode is advanced.
Description of drawings
Accompanying drawing 2 is that Figure 1A is to view.
Accompanying drawing 3 is that Figure 1B is to view.
Mark among the figure: 1 the 1st two-position three way proportional pressure-reducing valve, 2 the 2nd two-position three way proportional pressure-reducing valves, 3 the 1st two-position two-way hydraulic control valves, 4 the 2nd two-position two-way hydraulic control valves, 5 the 3rd two-position two-way hydraulic control valves, 6 the 4th two-position two-way hydraulic control valves, 7 two-position three way hydraulic control valve, 8 the 1st shuttle valves, 9 the 2nd shuttle valves, 10 hydraulic manifold blocks.
Embodiment
Further specify the utility model below in conjunction with embodiment and accompanying drawing thereof.
Embodiment as shown in Figure 1, 2, 3, hydraulic manifold block 10 surfaces of the integrated hoist control valve group of this hydraulic pressure are provided with control port Z, pressure hydraulic fluid port P, feedback hydraulic fluid port LS, return opening Y, oil return inlet T, oil outlet L, oil outlet R, wherein pressure hydraulic fluid port P and oil return inlet T are arranged on the back apparent surface with respect to Fig. 1 hydraulic manifold block, and return opening Y is arranged on the left apparent surface with respect to Fig. 1 hydraulic manifold block.
In the above-mentioned hydraulic fluid port, be provided with connecting pipeline between the hydraulic fluid port of oil outlet R and two multi-stage telescopic oil hydraulic cylinder G1, G2 rodless cavity, be provided with connecting pipeline between the hydraulic fluid port of oil outlet L and two multi-stage telescopic oil hydraulic cylinder G1, G2 rod chamber, feedback hydraulic fluid port LS is communicated with the control mouth of oil hydraulic pump, and return opening Y and oil return inlet T are communicated with fuel tank.
The surface of above-mentioned hydraulic manifold block 10 is provided with following cartridge valve: the 1st two-position three way proportional pressure-reducing valve 1, the 2nd two-position three way proportional pressure-reducing valve 2, the 1st two-position two-way hydraulic control valve 3, the 2nd two-position two-way hydraulic control valve 4, the 3rd two-position two-way hydraulic control valve 5, the 4th two-position two-way hydraulic control valve 6, two-position three way hydraulic control valve 7 and the 1st shuttle valve 8, the 2nd shuttle valve 9.
Shown in Fig. 1,2,3,4, the 1st two-position two-way hydraulic control valve 3(CT3 among the embodiment), the 4th two-position two-way hydraulic control valve 6(CT6 the 3rd two-position two-way hydraulic control valve 5(CT5 the 2nd two-position two-way hydraulic control valve 4(CT4))) constitute 3-position 4-way O type electricity liquid controlled reversing control unit.Shown in Fig. 1,2,3,4, hydraulic manifold block 10 inside are provided with following oil circuit: control port Z and the 1st two-position three way proportional pressure-reducing valve 1(CT1), the 2nd two-position three way proportional pressure-reducing valve 2(CT2) filler opening be communicated with oil circuit; Pressure hydraulic fluid port P and the 1st two-position two-way hydraulic control valve 3(CT3), the 2nd two-position two-way hydraulic control valve 4(CT4) filler opening be communicated with oil circuit; The 2nd shuttle valve 9(CT9) two filler openings respectively with the oil circuit that is communicated with of oil outlet L and oil outlet R; The 2nd shuttle valve oil outlet and two-position three way hydraulic control valve 7(CT7) filler opening be communicated with oil circuit; Feedback hydraulic fluid port LS and two-position three way hydraulic control valve 7(CT7) oil outlet be communicated with oil circuit; The 1st two-position three way proportional pressure-reducing valve 1(CT1) oil outlet and the 2nd two-position two-way hydraulic control valve 4(CT4), the 3rd two-position two-way hydraulic control valve 5(CT5) the hydraulic control mouth be communicated with oil circuit; The 2nd two-position three way proportional pressure-reducing valve 2(CT2) oil outlet and the 1st two-position two-way hydraulic control valve 3(CT3), the 4th two-position two-way hydraulic control valve 6(CT6) the hydraulic control mouth be communicated with oil circuit; The 1st shuttle valve 8(CT8) two filler openings respectively with the 1st two-position three way proportional pressure-reducing valve 1(CT1), the 2nd two-position three way proportional pressure-reducing valve 2(CT2) oil outlet be communicated with oil circuit; The 1st shuttle valve 8(CT8) oil outlet and two-position three way hydraulic control valve 7(CT7) control port be communicated with oil circuit.
Sketch the working principle of the integrated hoist control valve group of this hydraulic pressure below in conjunction with Fig. 4: the 1st two-position three way proportional pressure-reducing valve (CT1), the 2nd two-position three way proportional pressure-reducing valve (CT2) are in diagram when not charged upper, the control fluid of control port Z is blocked, it is upper that the 1st two-position two-way hydraulic control valve (CT3), the 2nd two-position two-way hydraulic control valve (CT4), the 3rd two-position two-way hydraulic control valve (CT5), the 4th two-position two-way hydraulic control valve (CT6) are in diagram, the filler opening of each valve and oil outlet disconnect, and two multi-stage telescopic oil hydraulic cylinder G1, G2 are failure to actuate.
At this moment, the control oil pocket of the 1st two-position two-way hydraulic control valve (CT3), the 2nd two-position two-way hydraulic control valve (CT4), the 3rd two-position two-way hydraulic control valve (CT5), the 4th each valve of two-position two-way hydraulic control valve (CT6) has guaranteed resetting of above each two-position two-way hydraulic control valve by the 1st two-position three way proportional pressure-reducing valve (CT1), the 2nd two-position three way proportional pressure-reducing valve (CT2) and return opening Y draining.
When the 1st two-position three way proportional pressure-reducing valve (CT1) charged, the 2nd two-position three way proportional pressure-reducing valve (CT2) is not charged, the 1st two-position three way proportional pressure-reducing valve 1(CT1) be in the diagram the next, it is upper that the 2nd two-position three way proportional pressure-reducing valve (CT2) is in diagram, the control fluid of control port this moment Z is applied to the 2nd two-position two-way hydraulic control valve (CT4) through the 1st two-position three way proportional pressure-reducing valve (CT1), the control end of the 3rd two-position two-way hydraulic control valve (CT5), make two valves illustrate the next access, then the pressure oil of pressure hydraulic fluid port P is connected with oil outlet R through the 2nd two-position two-way hydraulic control valve (CT4), pressure oil enters two multi-stage telescopic oil hydraulic cylinder G1, the rodless cavity of G2, rod chamber fluid is through oil outlet L simultaneously, the 3rd two-position two-way hydraulic control valve (CT5) and oil return inlet T oil return realizes the lifting action.Because the control of the pressure of the 1st two-position three way proportional pressure-reducing valve (CT1) is along with the input electrical signal size variation, therefore the pressure of control fluid that is applied to the control end of aforementioned each two-position two-way hydraulic control valve also changes thereupon, the aperture that makes valve is that flow is controlled, and then the lifting speed of two multi-stage telescopic oil hydraulic cylinder G1, G2 is carried out long-range adjusting control.Simultaneously, it is upper that two-position three way hydraulic control valve (CT7) is in diagram, oil outlet R communicates with feedback hydraulic fluid port LS by two-position three way hydraulic control valve (CT7), the induced pressure of oil outlet R feeds back to feedback hydraulic fluid port LS, and then feeding back to the control mouth of oil hydraulic pump, delivery pressure, flow and the load of control oil hydraulic pump adapt, and have improved the efficient of oil hydraulic pump, also have energy-conservation effect, the more important thing is to have overcome the defective that the lifting movement velocity is subjected to load effect.
In like manner, when the 2nd two-position three way proportional pressure-reducing valve (CT2) is with, the 1st two-position three way proportional pressure-reducing valve (CT1) is not charged, then the pressure oil of pressure hydraulic fluid port P and oil outlet L connect, pressure oil enters the rod chamber of two multi-stage telescopic oil hydraulic cylinder G1, G2, the fluid of rodless cavity is finished its decline homing action through the oil return inlet T oil return.
Claims (1)
1. the integrated hoist control valve group of heavy loading vehicle wagon box hydraulic pressure, comprise identical two multi-stage telescopic oil hydraulic cylinders, hydraulic manifold block and cartridge valve, it is characterized in that: described hydraulic manifold block surface is provided with control port Z, pressure hydraulic fluid port P, feedback hydraulic fluid port LS, return opening Y, oil return inlet T, oil outlet L, oil outlet R, and described cartridge valve is the 1st, the 2nd two-position three way proportional pressure-reducing valve; 1st, the 2nd, the 3rd, the 4th two-position two-way hydraulic control valve; Two-position three way hydraulic control valve and the 1st, the 2nd shuttle valve; Wherein the 1st to the 4th two-position two-way hydraulic control valve constitutes 3-position 4-way O type electricity liquid controlled reversing control unit; Be provided with connecting pipeline between the hydraulic fluid port of described oil outlet R and two multi-stage telescopic oil hydraulic cylinder rodless cavities, be provided with connecting pipeline between the hydraulic fluid port of oil outlet L and two multi-stage telescopic oil hydraulic cylinder rod chambers, feedback hydraulic fluid port LS is communicated with the control mouth of oil hydraulic pump, and return opening Y and oil return inlet T are communicated with fuel tank; Hydraulic manifold block inside is provided with following oil circuit: control port Z and the 1st, the 2nd two-position three way proportional pressure-reducing valve filler opening be communicated with oil circuit; The oil circuit that is communicated with of pressure hydraulic fluid port P and the 1st, the 2nd two-position two-way hydraulic control valve filler opening; The 2nd shuttle valve two filler openings respectively with the oil circuit that is communicated with of oil outlet L and oil outlet R; The oil circuit that is communicated with of the 2nd shuttle valve oil outlet and two-position three way hydraulic control valve filler opening; The oil circuit that is communicated with of feedback hydraulic fluid port LS and two-position three way hydraulic control valve oil outlet; The oil circuit that is communicated with of the oil outlet of the 1st two-position three way proportional pressure-reducing valve and the 2nd two-position two-way hydraulic control valve, the 3rd two-position two-way hydraulic control valve hydraulic control mouth; The oil circuit that is communicated with of the 2nd two-position three way proportional pressure-reducing valve oil outlet and the 1st two-position two-way hydraulic control valve, the 4th two-position two-way hydraulic control valve hydraulic control mouth; The 1st shuttle valve two filler openings respectively with the oil circuit that is communicated with of the 1st, the 2nd two-position three way proportional pressure-reducing valve oil outlet; The oil circuit that is communicated with of the 1st shuttle valve oil outlet and the control port of two-position three way hydraulic control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320231004 CN203214470U (en) | 2013-05-02 | 2013-05-02 | Hydraulic manifold lifting control valve bank for hopper of heavy truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320231004 CN203214470U (en) | 2013-05-02 | 2013-05-02 | Hydraulic manifold lifting control valve bank for hopper of heavy truck |
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| CN203214470U true CN203214470U (en) | 2013-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320231004 Expired - Fee Related CN203214470U (en) | 2013-05-02 | 2013-05-02 | Hydraulic manifold lifting control valve bank for hopper of heavy truck |
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| CN (1) | CN203214470U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196800A (en) * | 2014-09-04 | 2014-12-10 | 燕山大学 | Combination valve with load sensitive function and capable of controlling inlet and outlet oil ways independently |
| CN105332965A (en) * | 2015-11-26 | 2016-02-17 | 张家港力勤机械有限公司 | Control valve block in hydraulic oil way driving mixing head of foaming machine |
| GB2592220A (en) * | 2020-02-19 | 2021-08-25 | Metrol Springs Ltd | Linear actuator assembly control unit |
-
2013
- 2013-05-02 CN CN 201320231004 patent/CN203214470U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196800A (en) * | 2014-09-04 | 2014-12-10 | 燕山大学 | Combination valve with load sensitive function and capable of controlling inlet and outlet oil ways independently |
| CN104196800B (en) * | 2014-09-04 | 2016-03-02 | 燕山大学 | The combination brake switch and proporting that a kind of import and export oil circuit with load-sensitive function independently controls |
| CN105332965A (en) * | 2015-11-26 | 2016-02-17 | 张家港力勤机械有限公司 | Control valve block in hydraulic oil way driving mixing head of foaming machine |
| CN105332965B (en) * | 2015-11-26 | 2017-05-17 | 张家港力勤机械有限公司 | Control valve block in hydraulic oil way driving mixing head of foaming machine |
| GB2592220A (en) * | 2020-02-19 | 2021-08-25 | Metrol Springs Ltd | Linear actuator assembly control unit |
| GB2592220B (en) * | 2020-02-19 | 2023-02-22 | Metrol Springs Ltd | Linear actuator assembly control unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Hydraulic manifold lifting control valve bank for hopper of heavy truck Effective date of registration: 20160125 Granted publication date: 20130925 Pledgee: Beijing technology intellectual property financing Company limited by guarantee Pledgor: Beijing EHE Electromechanical Device Co., Ltd. Registration number: 2016990000072 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20170427 Granted publication date: 20130925 Pledgee: Beijing technology intellectual property financing Company limited by guarantee Pledgor: Beijing EHE Electromechanical Device Co., Ltd. Registration number: 2016990000072 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Hydraulic manifold lifting control valve bank for hopper of heavy truck Effective date of registration: 20191216 Granted publication date: 20130925 Pledgee: Beijing ustron Tongsheng financing Company limited by guarantee Pledgor: Beijing EHE Electromechanical Device Co., Ltd. Registration number: Y2019990000723 |
|
| 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: 20130925 Termination date: 20210502 |