CN104421250A - Automatic variable tracking system of power recovery type hydraulic pump/motor - Google Patents
Automatic variable tracking system of power recovery type hydraulic pump/motor Download PDFInfo
- Publication number
- CN104421250A CN104421250A CN201310394427.XA CN201310394427A CN104421250A CN 104421250 A CN104421250 A CN 104421250A CN 201310394427 A CN201310394427 A CN 201310394427A CN 104421250 A CN104421250 A CN 104421250A
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- China
- Prior art keywords
- motor
- variable
- variable displacement
- pump
- power recovery
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
Abstract
The invention provides an automatic variable tracking system of a power recovery type hydraulic pump/motor. The automatic variable tracking system comprises a computer control system (3), a variable pump (1) and a variable motor (2), wherein the variable pump (1) and the variable motor (2) are connected with the computer control system (3), a first flow sensor (4) is serially connected on an output pipeline of the variable pump (1), a second flow sensor (5) is serially connected into an outflow/inflow pipeline of the variable motor (2), and the first flow sensor (4) and the second flow sensor (5) are connected with the computer control system (3) through a data line. The automatic variable tracking system of the power recovery type hydraulic pump/motor has the advantage that loading failure or air suction of a variable motor can be avoided.
Description
Technical field
The present invention relates to oil hydraulic pump field tests, particularly relate to a kind of Power Recovery formula test-bed for pump device, specifically refer to a kind of Power Recovery formula hydraulic pump/motor variable automated tracking system.
Background technique
Power Recovery formula oil hydraulic pump, motor test rig refer to and to utilize hydraulic oil part driving ratio variable displacement motor in pipeline when test fluid press pump thus the part realizing hydraulic oil utilizes, avoid hydraulic oil all to enter in fuel tank, rate variable motor serves the effect of power-assisted on the other hand, thus decrease the load of mair motor, effectively can reduce energy consumption, be a kind of comparatively energy-conservation test-bed for pump system.
In above-mentioned pilot system, because underproof oil hydraulic pump is the oil hydraulic pump of variable, namely described oil hydraulic pump flow of its hydraulic oil in process of the test is constantly change, therefore also referred to as variable displacement pump, in test process, if the flow of variable displacement pump diminishes and oil hydraulic motor flow is constant time, then there will be in certain limit and cannot load; If when the flow of variable displacement pump is less than the flow of oil hydraulic motor, oil hydraulic motor then there will be emptying phenomenon, at this moment oil hydraulic motor then there will be emptying phenomenon, and then damages power assist element.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of and avoids that variable displacement motor occurs and cannot load or the Power Recovery formula hydraulic pump/motor variable automated tracking system of emptying phenomenon.
Technical solution of the present invention is, following a kind of Power Recovery formula hydraulic pump/motor variable automated tracking system is provided, the variable displacement pump, the variable displacement motor that comprise computer controlled system and be connected with computer controlled system, the outflow conduit of described variable displacement pump is serially connected with flow transducer I, be serially connected with flow transducer II in the outflow conduit of variable displacement motor or flow ipe, described flow transducer I is all connected with computer controlled system by datawire with flow transducer II.
After adopting above scheme, the present invention has been connected in series flow transducer on the pipeline of variable displacement pump and variable displacement motor, when the flow of variable displacement pump changes, the flow transducer I of variable is utilized to detect flow and transfer data to computer controlled system process, output signal the flow of controlled variable motor after computer controlled system process and by flow transducer II, the flow of variable displacement motor monitored, thus make variable displacement pump can increase with variable displacement pump synchronous proportional at the flow variations per hour motor that changes or reduce, and then the percentage of the flow of variable displacement pump and variable displacement motor remains unchanged substantially, thus variable displacement motor can not out cannot be loaded or the generation of emptying phenomenon.
Accompanying drawing explanation
Fig. 1 be Power Recovery formula hydraulic pump/motor variable automated tracking system of the present invention at variable displacement pump as structural representation during tested object.
Fig. 2 be Power Recovery formula hydraulic pump/motor variable automated tracking system of the present invention at variable displacement motor as structural representation during tested object.
Shown in figure:
1, variable displacement pump, 2, variable displacement motor, 3, computer controlled system, 4, flow transducer I, 5, flow transducer II.
Embodiment
For ease of illustrating, below in conjunction with accompanying drawing, invention Power Recovery formula hydraulic pump/motor variable automated tracking system is elaborated:
As shown in Figure 1, when variable displacement pump is as tested object, a kind of Power Recovery formula hydraulic pump/motor variable automated tracking system, the variable displacement pump 1, the variable displacement motor 2 that comprise computer controlled system 3 and be connected with computer controlled system 3, it is characterized in that: the outflow conduit of described variable displacement pump 1 is serially connected with flow transducer I4, be serially connected with flow transducer II5 in the outflow conduit of variable displacement motor 2, described flow transducer I4 is all connected with computer controlled system 3 by datawire with flow transducer II5.
As shown in Figure 2, when variable displacement motor is as tested object, a kind of Power Recovery formula hydraulic pump/motor variable automated tracking system, the variable displacement pump 1, the variable displacement motor 2 that comprise computer controlled system 3 and be connected with computer controlled system 3, it is characterized in that: the outflow conduit of described variable displacement pump 1 is serially connected with flow transducer I4, be serially connected with flow transducer II5 in the flow ipe of variable displacement motor 2, described flow transducer I4 is all connected with computer controlled system 3 by datawire with flow transducer II5.
In the above-described embodiments, preferred forms of the present invention is described, obviously, under inventive concept of the present invention, still can make a lot of change, the flow transducer I4 wherein used and the structural type etc. of flow transducer II5 all can be selected as required.At this, should illustrate, any change made under inventive concept of the present invention all will fall within the scope of protection of the present invention.
Claims (1)
1. a Power Recovery formula hydraulic pump/motor variable automated tracking system, the variable displacement pump (1) comprising computer controlled system (3) and be connected with computer controlled system (3), variable displacement motor (2), it is characterized in that: the outflow conduit of described variable displacement pump (1) is serially connected with flow transducer I (4), flow transducer II (5) is serially connected with in the outflow conduit of variable displacement motor (2) or flow ipe, described flow transducer I (4) is all connected with computer controlled system (3) by datawire with flow transducer II (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310394427.XA CN104421250A (en) | 2013-09-03 | 2013-09-03 | Automatic variable tracking system of power recovery type hydraulic pump/motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310394427.XA CN104421250A (en) | 2013-09-03 | 2013-09-03 | Automatic variable tracking system of power recovery type hydraulic pump/motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104421250A true CN104421250A (en) | 2015-03-18 |
Family
ID=52971119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310394427.XA Pending CN104421250A (en) | 2013-09-03 | 2013-09-03 | Automatic variable tracking system of power recovery type hydraulic pump/motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104421250A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107620701A (en) * | 2017-09-18 | 2018-01-23 | 北京航空航天大学 | The driving of high speed constant pressure variable plunger pump and load change test device based on power back off |
| CN109515178A (en) * | 2018-12-10 | 2019-03-26 | 长沙中联消防机械有限公司 | The hydraulic system and its control method of power takeoff combination Auto-matching power |
-
2013
- 2013-09-03 CN CN201310394427.XA patent/CN104421250A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107620701A (en) * | 2017-09-18 | 2018-01-23 | 北京航空航天大学 | The driving of high speed constant pressure variable plunger pump and load change test device based on power back off |
| CN109515178A (en) * | 2018-12-10 | 2019-03-26 | 长沙中联消防机械有限公司 | The hydraulic system and its control method of power takeoff combination Auto-matching power |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150318 |
|
| WD01 | Invention patent application deemed withdrawn after publication |