CN201330683Y - Load-sensing variable dual pump for furnace-dismantling machine - Google Patents
Load-sensing variable dual pump for furnace-dismantling machine Download PDFInfo
- Publication number
- CN201330683Y CN201330683Y CNU2008202322372U CN200820232237U CN201330683Y CN 201330683 Y CN201330683 Y CN 201330683Y CN U2008202322372 U CNU2008202322372 U CN U2008202322372U CN 200820232237 U CN200820232237 U CN 200820232237U CN 201330683 Y CN201330683 Y CN 201330683Y
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- load
- oil
- transducing
- pump
- dual pump
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Abstract
The utility model relates to a load-sensing variable dual pump for a furnace-dismantling machine, which is characterized in that the load-sensing variable dual pump comprises two plunger pumps with the same displacement, a reduction gear and a total power adjustor; wherein, the two pumps are mounted in a shell, and utilize a drive shaft for transmission; the load-sensing variable dual pump is connected with a prime mover, namely a diesel engine, through a flange; the rotation speed of the load-sensing variable dual pump is synchronized with the rotation speed of the output shaft of the engine; the oil-sucking inlets of the oil pumps are connected with an oil outlet of an oil tank; the two oil outlets of the oil pumps are respectively connected with the oil inlets of two multi-channel conversion valves; and a power loop is formed in a hydraulic system. The utility model has the advantages of high pressure, small volume, light weight, long service life, easy maintenance and the like. The utility model meets the requirements of at least the following complex working conditions: the large furnace-dismantling machine has many hydraulic actuators, the control pressure is variable, and the oil consumptions of hydraulic motors and hydraulic cylinders are different. The utility model not only can meet the requirements of various complex working conditions but also can prevent the overload of the engine or electromotors and save energy.
Description
Technical field
The utility model belongs to metallurgical and mining equipment, particularly a kind of load-transducing variable double pump that is used on the disassembling furnace machine.
Background technique
Disassembling furnace machine is the large-scale engineering machinery of fully hydraulic driven, the crawler travel that this is mechanical, and car body revolution, big arm rotation are fluid motor-driven, and the lifting of big arm, swing flexible and hydraulic hammer are all Driven by Hydraulic Cylinder.The pressure of required hydraulic system and flow are moved in each position, and each is different, and traditional disassembling furnace machine adopts metering pump and variable displacement pump as the hydraulic system power source, and general metering pump and variable displacement pump are difficult to satisfy the requirement of the operating mode of changeable complexity.
Summary of the invention
The utility model has overcome the defective of above-mentioned existence, and purpose is to provide a kind of load-transducing variable double pump as the hydraulic system power source for the large-scale engineering machinery disassembling furnace machine.
The utility model is used for the load-transducing variable double pump content Description on the disassembling furnace machine:
The utility model is used for the load-transducing variable double pump on the disassembling furnace machine, be by two plunger pumps that discharge capacity is identical, reduction gear and total output regulator are formed, it is characterized in that: two identical plunger pumps of discharge capacity of load-transducing variable double pump are contained in the housing, by a live axle transmission, the swash plate pivot angle of the total output regulator load-transducing variable double pump that two of sequential changes connect together with the change of outer load and corresponding discharge capacity, the pivot angle of swash plate is 7 °～25 °.
Load-transducing variable double pump connects dish by one and is connected with motor, its rotating speed and engine output shaft synchronization, the oil pump inlet port is connected with the fuel tank oil outlet, and two oil outlets of oil pump are connected with the filler opening of two multiple directional control valves respectively, form power loop in hydraulic system.
The utility model is used for the load-transducing variable double pump on the disassembling furnace machine, has the pressure height, and volume is little, in light weight, long service life is easy to advantages such as maintenance.It is many to have satisfied large-scale engineering machinery disassembling furnace machine hydraulic actuator, and pilot pressure is changeable, and oil hydraulic motor, oil hydraulic cylinder are with the oil mass requirement of complex working condition such as have nothing in common with each other.And because no matter how outer load changes, pump power output is invariable.Guaranteed that prime mover is that diesel engine or motor can overload operations, and energy-conservation.Not only satisfy the requirement of the operating mode of changeable complexity, but also played motor or motor overload and the energy-conservation effect of preventing.
Description of drawings
Fig. 1 is the load-transducing variable double pump hydraulic scheme that is used on the disassembling furnace machine
Fig. 2 is the output power curve figure of pump
Among the figure: the 1st, load-transducing variable double pump, the 2nd connects dish, the 3rd, and motor, the 4th, swash plate 5 are oil pump oil outlets, the 6th, the filler opening of multiple directional control valve, the 7th, total output regulator, the 8th, oil pump inlet port, the 9th, fuel tank oil outlet, the 10th, fuel tank.
Embodiment
The utility model is used for load-transducing variable double pump on the disassembling furnace machine and is achieved in that below in conjunction with accompanying drawing and specifies.See Fig. 1, the load-transducing variable double pump 1 that the utility model is used on the disassembling furnace machine is inclined plunger variable double pump, be made up of two identical plunger pump, reduction gear and total output regulators of discharge capacity, two pumps are contained in the housing, by a live axle transmission.Total output regulator 7 is pressure guide control gear, and the pivot angle of swash plate 4 is 7 °～25 °, swash plate 4 pivot angles of the total output regulator 7 load-transducing variable double pump 1 that two of sequential changes connect together with the change of outer load and corresponding discharge capacity.The pivot angle of swash plate 4 changes between 7 °～25 °.When outer load increased, system pressure also increased.At this moment the swash plate pivot angle diminishes, and flow also reduces.Thereby make the power of pump output in certain rotating speed, keep constant, that is: N=PQ/600 η
In the formula: N-power (kw)
P-pressure (kgf/cm
2)
Q-discharge capacity (L/min)
η-efficient.
Load-transducing variable double pump 1 connects dish 2 by one and is connected its rotating speed and motor 3 output shaft synchronization with motor 3.Oil pump inlet port 8 is connected with fuel tank oil outlet 9.Two oil outlets 5 of oil pump are connected with the filler opening 6 of two multiple directional control valves respectively.In hydraulic system, form power loop, supply with multiple directional control valve hydraulic oil.Each oil outlet of this pump can sense the oil pressure variation of load to system on the total output regulator of pump itself in the time of the multiple directional control valve fuel feeding, and then change pump stroking mechanism, the pivot angle that is swash plate is changed to the Qmin direction by Qmax, be that load increases, system oil pressure increases, the output flow of pump reduces, and keeps the output power of pump constant, and promptly diesel engine can overload operation.
See Fig. 2, the output power curve of pump is a hyperbola, and hydraulic system pressure rising POF reduces, otherwise hydraulic system pressure reduces, and POF increases, and power invariability is constant.Load-transducing variable double pump has the pressure height, and volume is little, in light weight, long service life is easy to advantages such as maintenance.It is many to have satisfied large-scale engineering machinery disassembling furnace machine hydraulic actuator, and pilot pressure is changeable, and oil hydraulic motor, oil hydraulic cylinder are with the oil mass requirement of complex working condition such as have nothing in common with each other.And because no matter how outer load changes, pump power output is invariable.Guaranteed that prime mover is that diesel engine or motor can overload operations, and energy-conservation.
Claims (2)
1, a kind of load-transducing variable double pump that is used on the disassembling furnace machine, be by two plunger pumps that discharge capacity is identical, reduction gear and total output regulator are formed, it is characterized in that: two identical plunger pumps of discharge capacity of load-transducing variable double pump (1) are contained in the housing, by a live axle transmission, swash plate (4) pivot angle of total output regulator (7) the load-transducing variable double pump (1) that two of sequential changes connect together with the change of outer load, the pivot angle of swash plate (4) is 7 °～25 °.
2, the load-transducing variable double pump that is used on the disassembling furnace machine according to claim 1, it is characterized in that: load-transducing variable double pump (1) connects dish (2) by one and is connected with motor (3), its rotating speed and motor (3) output shaft synchronization, oil pump inlet port (8) is connected with fuel tank oil outlet (9), two oil outlets (5) of oil pump are connected with the filler opening (6) of two multiple directional control valves respectively, form power loop in hydraulic system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202322372U CN201330683Y (en) | 2008-12-29 | 2008-12-29 | Load-sensing variable dual pump for furnace-dismantling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202322372U CN201330683Y (en) | 2008-12-29 | 2008-12-29 | Load-sensing variable dual pump for furnace-dismantling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201330683Y true CN201330683Y (en) | 2009-10-21 |
Family
ID=41224061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202322372U Expired - Lifetime CN201330683Y (en) | 2008-12-29 | 2008-12-29 | Load-sensing variable dual pump for furnace-dismantling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201330683Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094858A (en) * | 2011-01-18 | 2011-06-15 | 上海三一科技有限公司 | Variable dual-pump hydraulic system capable of providing various flow rate working conditions |
| CN102834616A (en) * | 2010-03-26 | 2012-12-19 | 普拉德研究及开发股份有限公司 | System, apparatus, and method for rapid pump displacement configuration |
-
2008
- 2008-12-29 CN CNU2008202322372U patent/CN201330683Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102834616A (en) * | 2010-03-26 | 2012-12-19 | 普拉德研究及开发股份有限公司 | System, apparatus, and method for rapid pump displacement configuration |
| CN102834616B (en) * | 2010-03-26 | 2016-01-06 | 普拉德研究及开发股份有限公司 | For system, equipment and method that rapid pump discharge capacity configures |
| CN102094858A (en) * | 2011-01-18 | 2011-06-15 | 上海三一科技有限公司 | Variable dual-pump hydraulic system capable of providing various flow rate working conditions |
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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: LIAONING HEAVYLONG CO.,LTD Free format text: FORMER OWNER: XU HUICHEN Effective date: 20100427 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 114039 LIAONING HAILONG HYDRAULIC MECHANICAL AND ELECTRICAL EQUIPMENT CO.,LTD., NO.49, LINGSHAN ROAD, LISHAN DISTRICT, AN'SHAN CITY, LIAONING TO: 114039 NO.150, TIETA ROAD, LISHAN DISTRICT, ANSHAN CITY, LIAONING PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100427 Address after: 114039 Anshan province Liaoning City mountain Tower Road No. 150 Patentee after: Liaoning Heavylong Heavy Industry Co., Ltd. Address before: 114039 Lingshan road Anshan city Liaoning province Lishan District No. 49 Liaoning Hailong hydraulic Electromechanical Equipment Co. Ltd Patentee before: Xu Huichen |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091021 |