CN206144874U - Two constant delivery pumps intelligence confluence system - Google Patents
Two constant delivery pumps intelligence confluence system Download PDFInfo
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- CN206144874U CN206144874U CN201621151432.3U CN201621151432U CN206144874U CN 206144874 U CN206144874 U CN 206144874U CN 201621151432 U CN201621151432 U CN 201621151432U CN 206144874 U CN206144874 U CN 206144874U
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Abstract
The utility model discloses a two constant delivery pumps intelligence confluence system, including hydraulic tank, main pump, flow change -over valve, flow confluence valve and auxiliary pump, the oil inlet of main pump and auxiliary pump links to each other with hydraulic tank, the oil -out of main pump links to each other with the oil inlet P2 of flow change -over valve, the oil -out of auxiliary pump links to each other with the oil inlet P1 of flow change -over valve, the export O2 of flow change -over valve and the export O1 of flow confluence valve link to each other, the control mouth a2 of flow change -over valve links to each other with the control mouth a1 of flow confluence valve, the control mouth b2 of flow change -over valve links to each other with the control mouth b1 of flow confluence valve, the hydraulic fluid port T1 of flow confluence valve links to each other with hydraulic tank. The utility model discloses increase an auxiliary pump, according to system's main pump variation in discharge, automatically regulated collaborates the flow of system to guarantee that system flow is basicly stable, guarantee that hydraulic system's performance is not influenced. For increase constant delivery pump discharge capacity, when the main pump was enough to satisfy system flow, the auxiliary pump is the low pressure off -load completely, practiced thrift the energy.
Description
Technical field
This utility model is related to a kind of with regard to hydraulic system with constant displacement pump, specifically a kind of pair dosing pump intelligence converging system.
Background technology
At present, hydraulic system power source part adopts internal combustion engine, if using dosing pump as dynamical element, flow system flow
To change rotation speed change with internal combustion engine, this performance to hydraulic system has tremendous influence, especially in internal-combustion engine rotational speed
When relatively low, hydraulic system efficiency declines obvious.If increasing quantitative pumpage, to ensure during the internal combustion engine slow-speed of revolution, flow system flow
Abundance, but during the high rotating speed of internal combustion engine, dosing pump will provide the flow of great quantities of spare, or throttling or overflow, will all cause energy
Waste.
The content of the invention
For the problem that above-mentioned prior art is present, this utility model provides a kind of pair of dosing pump intelligence converging system, root
According to system main pump changes in flow rate, interflow is automatically adjusted to the flow of system, it is ensured that flow system flow is basicly stable, it is ensured that hydraulic system
Performance it is unaffected.
To achieve these goals, the technical solution adopted in the utility model is：A kind of pair of dosing pump intelligence converging system,
Including hydraulic oil container, main pump, flow conversion valve, flow converging valve and donkey pump；The oil-in and hydraulic oil of main pump and donkey pump
Case is connected, and the oil-out of main pump is connected with the oil inlet P 2 of flow conversion valve, the oil-out of donkey pump and entering for flow conversion valve
Hydraulic fluid port P1 be connected, the outlet O2 of flow conversion valve is connected with the outlet O1 of flow converging valve, control mouth a2 of flow conversion valve and
Control mouth a1 of flow converging valve is connected, and control mouth b2 of flow conversion valve is connected with control mouth b1 of flow converging valve, flow
The hydraulic fluid port T1 of converging valve is connected with hydraulic oil container.
This utility model is further, and the oil-in of the main pump and donkey pump is connected again after being connected with hydraulic oil container.
This utility model is further, and the main pump and donkey pump are connected by filter element with hydraulic oil container.
This utility model is further, and the flow conversion valve is integrated into a valve with flow converging valve.
This utility model increases a donkey pump, according to system main pump changes in flow rate, automatically adjusts interflow to the stream of system
Amount, so as to ensure that flow system flow is basicly stable, it is ensured that the performance of hydraulic system is unaffected.Relative to the quantitative pumpage of increase,
When main pump is sufficient for flow system flow, donkey pump can Low-pressure load discharge completely, save energy.
Description of the drawings
Fig. 1 is fundamental diagram of the present utility model；
In figure：1st, hydraulic oil container, 2, main pump, 3, flow conversion valve, 4, flow converging valve, 5, donkey pump.
Specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in figure 1, the double dosing pump intelligence converging systems of this utility model, including the conversion of hydraulic oil container 1, main pump 2, flow
Valve 3, flow converging valve 4 and donkey pump 5；The oil-in of the main pump 2 and donkey pump 5 is connected with hydraulic oil container 1, and main pump 2 goes out
Hydraulic fluid port is connected with the oil inlet P 2 of flow conversion valve 3；The phase of oil inlet P 1 of the oil-out of the donkey pump 5 and flow conversion valve 3
Even；The outlet O2 of the flow conversion valve 3 is connected with the outlet O1 of flow converging valve 4, control mouth a2 and the stream of flow conversion valve 3
Control mouth a1 of amount converging valve 4 is connected, and control mouth b2 of flow conversion valve 3 is connected with control mouth b1 of flow converging valve 4；It is described
The hydraulic fluid port T1 of flow converging valve 4 is connected with hydraulic oil container 1.The flow of main pump 2 is by flow conversion valve 3, different traffic transformations
For different pressure, flow converging valve 4 is delivered to by control mouth, controls flow converging valve interflow to the flow of system.
On the basis of said structure, the oil-in of main pump 2 and donkey pump 5 can be connected respectively with hydraulic oil container 1, it is also possible to
Two pump oil-ins are connected again after being connected with hydraulic oil container 1.Main pump 2, donkey pump 5 can be joined directly together with hydraulic oil container 1, it is also possible to
Be connected with hydraulic oil container 1 by filter element, to filter hydraulic oil in impurity.Flow conversion valve 3 and flow converging valve 4 can be two
Individual valve, or a valve.
Utility model works process is as follows：When system is not actuated, flow conversion valve 3 is flowed through without flow, flow turns
Change control mouth a2 of valve 3 identical with b2 pressure, flow converging valve 4 when control mouth a1 is identical with b1 pressure, the main valve of flow converging valve 4
Core works in the presence of back-moving spring in left position, and whole flows of donkey pump 5 can be by flow converging valve 4 and main pump 2
Interflow.
In system start-up, the flow of main pump 2 flows through flow conversion valve 3, control mouth a2 of flow conversion valve 3 and b2 pressure point
Supplementary biography is delivered to control mouth a1 and b1 of flow converging valve 4, and the main valve plug of flow converging valve 4 is in back-moving spring, control mouth a1 and b1
A certain position is under Stress control, the partial discharge of donkey pump 5 can be by flow converging valve 4 and the 2-in-1 stream of main pump.Work as main pump
When 2 flow increases, the control mouth b2 pressure of flow conversion valve 3 becomes big with a2 pressure difference values, is delivered to the control mouth of flow converging valve 4
B1 and a1 pressure difference values become big so that the main valve plug of flow converging valve 4 is moved to right, the less flow of donkey pump 5 and the 2-in-1 stream of main pump, protect
Hold flow system flow basicly stable.When the flow of main pump 2 arrives a certain value greatly, whole flow Low-pressure load discharges of donkey pump 5.Work as main pump
When 2 flow reduces, the control mouth b2 pressure of flow conversion valve 3 diminishes with a2 pressure difference values, is delivered to the control mouth of flow converging valve 4
B1 and a1 pressure difference values diminish so that the main valve plug of flow converging valve 4 is moved to left, the more flows of donkey pump 5 and the 2-in-1 stream of main pump, protect
Hold flow system flow basicly stable.
Certainly, above-described embodiment is only preferred version of the present utility model, is specifically not limited thereto, and on this basis may be used
Make according to actual needs with targetedly adjusting, so as to obtain different embodiments.Due to mode in the cards compared with
It is many, just no longer illustrate one by one here.
Claims (4)
1. a kind of pair of dosing pump intelligence converging system, it is characterised in that including hydraulic oil container（1）, main pump（2）, flow conversion valve
（3）, flow converging valve（4）And donkey pump（5）；The main pump（2）And donkey pump（5）Oil-in and hydraulic oil container（1）It is connected,
Main pump（2）Oil-out and flow conversion valve（3）Oil inlet P 2 be connected；The donkey pump（5）Oil-out and flow change
Valve（3）Oil inlet P 1 be connected；The flow conversion valve（3）Outlet O2 and flow converging valve（4）Outlet O1 be connected, flow
Switching valve（3）Control mouth a2 and flow converging valve（4）Control mouth a1 be connected, flow conversion valve（3）Control mouth b2 with stream
Amount converging valve（4）Control mouth b1 be connected；The flow converging valve（4）Hydraulic fluid port T1 and hydraulic oil container（1）It is connected.
2. a kind of pair of dosing pump according to claim 1 intelligence converging system, it is characterised in that the main pump（2）With it is auxiliary
Help pump（5）Oil-in be connected after again with hydraulic oil container（1）It is connected.
3. a kind of pair of dosing pump according to claim 1 intelligence converging system, it is characterised in that the main pump（2）With it is auxiliary
Help pump（5）By filter element and hydraulic oil container（1）It is connected.
4. a kind of pair of dosing pump according to claim 1 intelligence converging system, it is characterised in that the flow conversion valve
（3）With flow converging valve（4）It is integrated into a valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621151432.3U CN206144874U (en) | 2016-10-31 | 2016-10-31 | Two constant delivery pumps intelligence confluence system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621151432.3U CN206144874U (en) | 2016-10-31 | 2016-10-31 | Two constant delivery pumps intelligence confluence system |
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| Publication Number | Publication Date |
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| CN206144874U true CN206144874U (en) | 2017-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621151432.3U Active CN206144874U (en) | 2016-10-31 | 2016-10-31 | Two constant delivery pumps intelligence confluence system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799221A (en) * | 2018-07-04 | 2018-11-13 | 武汉商学院 | Hydraulic injection molding machine dynamical system |
| CN110953197A (en) * | 2019-12-23 | 2020-04-03 | 中联重科股份有限公司 | Power control hydraulic system and crane |
| CN113153865A (en) * | 2021-03-04 | 2021-07-23 | 宁波保税区海天智胜金属成型设备有限公司 | Hydraulic system oil circuit cooling structure |
-
2016
- 2016-10-31 CN CN201621151432.3U patent/CN206144874U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799221A (en) * | 2018-07-04 | 2018-11-13 | 武汉商学院 | Hydraulic injection molding machine dynamical system |
| CN110953197A (en) * | 2019-12-23 | 2020-04-03 | 中联重科股份有限公司 | Power control hydraulic system and crane |
| CN110953197B (en) * | 2019-12-23 | 2021-03-19 | 中联重科股份有限公司 | Power control hydraulic system and crane |
| CN113153865A (en) * | 2021-03-04 | 2021-07-23 | 宁波保税区海天智胜金属成型设备有限公司 | Hydraulic system oil circuit cooling structure |
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