CN102182725A - Large step variable control multi-link energy-saving hydraulic pump station - Google Patents
Large step variable control multi-link energy-saving hydraulic pump station Download PDFInfo
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- CN102182725A CN102182725A CN2011101018884A CN201110101888A CN102182725A CN 102182725 A CN102182725 A CN 102182725A CN 2011101018884 A CN2011101018884 A CN 2011101018884A CN 201110101888 A CN201110101888 A CN 201110101888A CN 102182725 A CN102182725 A CN 102182725A
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Abstract
The invention discloses a large step variable control multi-link energy-saving hydraulic pump station which comprises an oil tank, a high-pressure oil pump assembly and at least one group medium-pressure oil pump assembly, wherein the high-pressure oil pump assembly is connected with the oil tank; the output oil channel of the high-pressure oil pump assembly and the output oil channel of the medium-pressure oil pump assembly are connected with a converging control assembly which is provided with a general output oil channel; each medium-pressure oil pump assembly is provided with an independent control switch; and the output oil channel of each medium-pressure oil pump assembly is provided with an independent pressure-regulating assembly. According to the invention, a multi-link pump mode of the high-pressure pump and at least one group of medium-pressure pump is adopted, not only can the requirement of high flow rate be satisfied, but also the requirement on different levels of pressure of an inner chamber metal extrusion molding machine can be satisfied, the response is rapid, the noise is less, and the cost is lower; and further the independent pressure-regulating assembly is configured in each medium-pressure oil pump assembly, and more rich pressure regulating choices are provided by the inner chamber metal extrusion molding machine.
Description
Technical field
The present invention relates to a kind of hydraulic power unit, be specifically related to a kind of large-scale multi-joint energy-conserving hydraulic pumping plant of grade Variable Control that has.
Background technique
In inner chamber metal machine for extrusion molding, because actuator's quantity is more, it needs hydraulic power unit that different pressure and bigger flow are provided, and operating mode is comparatively complicated.And existing Large-scale Hydraulic Pumping Station adopts independent variable displacement pump to meet design requirement, and it has the high characteristics of efficient, but there are shortcomings such as cost height, the pivot angle reaction is slow, noise is big in the variable displacement pump of big flow.Yet, existing Large-scale Hydraulic Pumping Station also has independent metering pump, though the corresponding variable pump of metering pump cost is lower, working service is simple, and has an advantage that voltage regulation performance is good, dynamic response is fast, but exist pressure to adjust the little shortcoming in space, can not adapt to the working condition requirement of inner chamber metal machine for extrusion molding complexity well.As can be known, above-mentioned two types hydraulic power unit all can not satisfy the job requirement of inner chamber metal machine for extrusion molding.
Summary of the invention
The objective of the invention is at the problems referred to above deficiency, provide a kind of realize big flow, adjustable in pressure and energy-conserving and environment-protective the multi-joint energy-conserving hydraulic pumping plant of grade Variable Control arranged.
To achieve these goals, the present invention is by the following technical solutions:
Large-scale have a multi-joint energy-conserving hydraulic pumping plant of grade Variable Control, has fuel tank, it comprises oil-pressing pump assembly in the high pressure oil pump assembly that is connected with fuel tank and at least one group, the output circuit of described high pressure oil pump assembly and in the output circuit of oil-pressing pump assembly be connected with the interflow control unit that is provided with total output circuit; And described in each the oil-pressing pump assembly be provided with independent control switch.
Regulate for the pressure that horn of plenty more is provided and to select, above-mentioned in each the output circuit of oil-pressing pump assembly be provided with independent pressure regulation assembly.
As preferably, the present invention includes oil-pressing pump assembly in two groups.
As further preferred, the present invention includes oil-pressing pump assembly in three groups.
Maintenance for convenience, above-mentioned in each the oil-pressing pump assembly on the input oil circuit that is connected with fuel tank, be provided with the self sealing oil purifier, this self sealing oil purifier is used for cutting off when maintenance imports oil circuit.
The present invention adopts the multiplex pump mode of a high-pressure service pump and at least one group of medium pressure pump, and it can satisfy the requirement of big flow, can satisfy the requirement of inner chamber metal machine for extrusion molding different brackets pressure again, and its response is fast, and noise is less, and cost is lower.The present invention is oil-pressing pump arrangement of components independence pressure regulation assembly in each further, selects for inner chamber metal machine for extrusion molding provides the more pressure adjusting of horn of plenty.
Description of drawings
Fig. 1 is the large-scale multi-joint energy-conserving hydraulic pumping plant of grade Variable Control structural representation that has of the present invention.
Below come the present invention is further described by the drawings and specific embodiments:
Embodiment
As shown in Figure 1, of the present invention large-scalely have the multi-joint energy-conserving hydraulic pumping plant of grade Variable Control to be applied to inner chamber metal machine for extrusion molding, for inner chamber metal machine for extrusion molding provides big flow adjustable pressure hydraulic oil, for each actuator provides hydraulic power.
Be specially, of the present invention large-scalely have the multi-joint energy-conserving hydraulic pumping plant of grade Variable Control to comprise oil-pressing pump assembly 4 in frame 1, fuel tank 2, the high pressure oil pump assembly 3 that is connected with fuel tank 2 and at least one group, as preferably, the present invention includes oil-pressing pump assembly 4 in two groups, and, the present invention includes oil-pressing pump assembly 4 in three groups as best preferred version.Further concrete, described high pressure oil pump assembly 3 and middle oil-pressing pump assembly 4 are installed on the mountion plate of frame 1 side by side, and described fuel tank 2 is installed in middle oil-pressing pump assembly 4 tops by the supporting component of frame 1.Described high pressure pump assembly 3 and medium pressure pump assembly 4 are and are the metering pump assembly.The output circuit of the output circuit of described high pressure oil pump assembly 3 and middle oil-pressing pump assembly 4 is connected with the interflow control unit 5 that is provided with total output circuit; And described in each oil-pressing pump assembly 4 be provided with independent control switch, control the Kai Heguan of oil-pressing pump assembly 4 in each by independent control switch, and cooperate with high pressure oil pump assembly 3 interflow by interflow control unit 5, realize multi-jointly having grade Variable Control flow to export.By independent control switch, middle oil-pressing pump assembly 4 quantity that can select needs to start according to actual conditions are in order to avoid cause excess supply, energy-conserving and environment-protective.
Maintenance for convenience, above-mentioned in each oil-pressing pump assembly 4 with input oil circuit that fuel tank 2 is connected on be provided with self sealing oil purifier 6, this self sealing oil purifier 6 is used for cutting off when maintenance imports oil circuit.
Regulate for the pressure that horn of plenty more is provided and to select, above-mentioned in each the output circuit of oil-pressing pump assembly 4 be provided with independent pressure regulation assembly, can control the pressure oil output of oil-pressing pump assembly 4 in each according to needs of production.The present invention uses by the multi-joint variable combination of independent pressure regulation assembly and independent control switch and interflow control unit 5, provides flexible and changeable pressure to regulate and selects, and has satisfied inner chamber metal machine for extrusion molding working condition requirement complicated and changeable well.
The present invention adopts technique scheme to have the following advantages:
1) scientific structure design of the present invention is reasonable, and is independent mutually controlled between the oil-pressing pump assembly in each, and is provided with independent control switch and independent pressure regulation assembly separately, and flow output and pressure output are flexible and changeable, can regulate output flow and pressure according to actual needs.
2) be convenient to the dismounting maintenance.Because the present invention is provided with the self sealing oil purifier at middle oil-pressing pump assembly on the input oil circuit that is connected with fuel tank, this self sealing oil purifier is used for cutting off the input oil circuit when maintenance, makes things convenient for shutdown maintenance.
3) each oil pump assembly output circuit is by control unit interflow, interflow, and the pressure oil output flow is big, adjustable in pressure.It can satisfy the requirement of big flow, can satisfy the requirement of inner chamber metal machine for extrusion molding different brackets pressure again, and its response is fast, and noise is less, and cost is lower.
Claims (5)
1. large-scale have a multi-joint energy-conserving hydraulic pumping plant of grade Variable Control, has fuel tank, it is characterized in that: comprise oil-pressing pump assembly in the high pressure oil pump assembly that is connected with fuel tank and at least one group, the output circuit of described high pressure oil pump assembly and in the output circuit of oil-pressing pump assembly be connected with the interflow control unit that is provided with total output circuit; And described in each the oil-pressing pump assembly be provided with independent control switch.
2. according to claim 1 have a multi-joint energy-conserving hydraulic pumping plant of grade Variable Control, it is characterized in that: described in each the output circuit of oil-pressing pump assembly be provided with independent pressure regulation assembly.
3. according to claim 1 and 2 have a multi-joint energy-conserving hydraulic pumping plant of grade Variable Control, it is characterized in that: comprise oil-pressing pump assembly in two groups.
4. according to claim 1 and 2 have a multi-joint energy-conserving hydraulic pumping plant of grade Variable Control, it is characterized in that: comprise oil-pressing pump assembly in three groups.
5. according to claim 1 have a multi-joint energy-conserving hydraulic pumping plant of grade Variable Control, it is characterized in that: described in each the oil-pressing pump assembly on the input oil circuit that is connected with fuel tank, be provided with the self sealing oil purifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101018884A CN102182725A (en) | 2011-04-22 | 2011-04-22 | Large step variable control multi-link energy-saving hydraulic pump station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101018884A CN102182725A (en) | 2011-04-22 | 2011-04-22 | Large step variable control multi-link energy-saving hydraulic pump station |
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| Publication Number | Publication Date |
|---|---|
| CN102182725A true CN102182725A (en) | 2011-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101018884A Pending CN102182725A (en) | 2011-04-22 | 2011-04-22 | Large step variable control multi-link energy-saving hydraulic pump station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103157686A (en) * | 2011-12-15 | 2013-06-19 | 广东科达机电股份有限公司 | Large hydraulic pump station with step-less adjustable pressure and flow |
| CN103586364A (en) * | 2012-08-16 | 2014-02-19 | 广东科达机电股份有限公司 | Novel hydraulic device |
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| US20050217260A1 (en) * | 2004-03-23 | 2005-10-06 | Desjardins Yvon C | Electro-hydraulic fan drive cooling and steering system for vehicle |
| CN101177930A (en) * | 2007-05-28 | 2008-05-14 | 中交第二公路工程局有限公司 | High-low pump combination hydraulic system |
| KR20090089786A (en) * | 2006-12-21 | 2009-08-24 | 히다찌 겐끼 가부시키가이샤 | Steering system for working vehicle |
| CN201471698U (en) * | 2009-07-30 | 2010-05-19 | 桂林星辰科技有限公司 | Energy saving servo hydraulic control system of injection machine |
| CN201747555U (en) * | 2010-05-18 | 2011-02-16 | 广东科达机电股份有限公司 | Double-pump type pumping plant |
| CN202031922U (en) * | 2011-04-22 | 2011-11-09 | 广东科达机电股份有限公司 | Large-sized step variable control multi-connection energy-saving hydraulic pump station |
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2011
- 2011-04-22 CN CN2011101018884A patent/CN102182725A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050217260A1 (en) * | 2004-03-23 | 2005-10-06 | Desjardins Yvon C | Electro-hydraulic fan drive cooling and steering system for vehicle |
| KR20090089786A (en) * | 2006-12-21 | 2009-08-24 | 히다찌 겐끼 가부시키가이샤 | Steering system for working vehicle |
| CN101177930A (en) * | 2007-05-28 | 2008-05-14 | 中交第二公路工程局有限公司 | High-low pump combination hydraulic system |
| CN201471698U (en) * | 2009-07-30 | 2010-05-19 | 桂林星辰科技有限公司 | Energy saving servo hydraulic control system of injection machine |
| CN201747555U (en) * | 2010-05-18 | 2011-02-16 | 广东科达机电股份有限公司 | Double-pump type pumping plant |
| CN202031922U (en) * | 2011-04-22 | 2011-11-09 | 广东科达机电股份有限公司 | Large-sized step variable control multi-connection energy-saving hydraulic pump station |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103157686A (en) * | 2011-12-15 | 2013-06-19 | 广东科达机电股份有限公司 | Large hydraulic pump station with step-less adjustable pressure and flow |
| CN103586364A (en) * | 2012-08-16 | 2014-02-19 | 广东科达机电股份有限公司 | Novel hydraulic device |
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Application publication date: 20110914 |