CN105650063B - Extruder hydraulic system pressure fluctuates reduction method - Google Patents
Extruder hydraulic system pressure fluctuates reduction method Download PDFInfo
- Publication number
- CN105650063B CN105650063B CN201610057901.3A CN201610057901A CN105650063B CN 105650063 B CN105650063 B CN 105650063B CN 201610057901 A CN201610057901 A CN 201610057901A CN 105650063 B CN105650063 B CN 105650063B
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- China
- Prior art keywords
- hydraulic
- pump module
- pulsation damper
- pressure oil
- hydraulic pump
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Classifications
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- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/008—Reduction of noise or vibration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/045—Devices damping pulsations or vibrations in fluids specially adapted to prevent or minimise the effects of water hammer
- F16L55/05—Buffers therefor
Abstract
Extruder hydraulic system pressure of the present invention fluctuates reduction method, the pressure oil of hydraulic system exports, pulsation damper is entered by hydraulic pump module first, the noise that hydraulic pump module passes over is filtered out by pulsation damper, the wave crest and trough of pressure oil output are filtered and are compressed simultaneously, the pressure oil for being allowed to the fluctuation exported by hydraulic pump module is converted to the pressure oil at flat peak, entire body is transported to by pulsation damper again, valve block is controlled by entire body to hydraulic cylinder later, valve block control is controlled by hydraulic cylinder and completes to squeeze relevant action.The present invention in hydraulic system by being added pulsation damper and flexible connection etc., the pressure oil of the fluctuation of hydraulic pump module output is converted to the pressure oil at flat peak, pressure oscillation caused by fundamentally overcoming oil pump to rotate, it ensure that the stationarity of oil sources output, to reduce the impact to Hydraulic Elements, the service life and stability of Hydraulic Elements are improved, the stability and reliability of extruder extruding force and extrusion speed control are improved.
Description
Technical field
The invention belongs to field of metallurgical equipment, in particular to a kind of extruder hydraulic system pressure fluctuates reduction method.
Background technique
In existing aluminium extrusion production process, due to the self-characteristic of oil pump rotation, the hydraulic system of extruder exists
The problem of pressure oscillation, pressure oscillation can not only cause the vibration and resonance of noise and component of machine, but also can be to hydraulic
Valve, filter, the Hydraulic Elements such as sealing ring form lasting impact, service life and sealing life to above-mentioned Hydraulic Elements and
Effect impacts, and in aluminium extruding machine, pressure oscillation also results in the fluctuation and unstable, influence of extruding force and extrusion speed
The influence of the surface quality and lumber recovery of profile, profile extrusion especially more demanding to speed control is more significant, even
Directly reduce the yield rate of product.
The problems such as existing extruding machine hydraulic system is in order to control pressure oscillation and vibration typically uses hydraulic pump
Component is flexible coupling with ground, be specifically exactly hydraulic pump module is fixed using yielding rubber, while with each liquid
It uses and is flexible coupling to reduce vibration and pressure oscillation between pressure pipe, this method has certain effect to mechanical shock is mitigated, still
It cuts little ice to pressure oscillation caused by hydraulic pump itself and vibration.Therefore a kind of new method is needed, oil pump can be reduced and turned
The dynamic influence that hydraulic system pressure is fluctuated.
Summary of the invention
In order to overcome the problems, such as in existing method that extrusion speed controls that unstable, fluctuation is big, the present invention provides a kind of extruding
Machine hydraulic system pressure oscillation reduces method and improves the use of Hydraulic Elements to reduce impact of the hydraulic system to Hydraulic Elements
Service life and stability, while the stability of hydraulic system oil pressure output is promoted, and then improve extruder extruding force and extrusion speed
The stability and reliability of control.
The technical solution adopted by the present invention is that:
Extruder hydraulic system pressure fluctuates reduction method, the pressure oil output of hydraulic system, first by hydraulic pump module
Into pulsation damper, the noise that hydraulic pump module passes over is filtered out by pulsation damper, while to pressure oil output
Wave crest and trough be filtered and compress, the pressure oil for being allowed to the fluctuation exported by hydraulic pump module is converted to the pressure at flat peak
Oil, then entire body is transported to by pulsation damper, valve block is controlled by entire body to hydraulic cylinder later, valve block control is controlled by hydraulic cylinder
It completes to squeeze relevant action.
The hydraulic pump module and pulsation damper are rigidly connected, and pulsation damper is mounted on the outlet of hydraulic pump module
Place, meanwhile, pulsation damper and entire body are flexibly connected, and entire body hydraulic cylinder controls valve block connection.
The hydraulic pump module and pulsation damper are rigidly connected by hydraulic steel pipe.
The model PULSDAEMPFER of the pulsation damper.
The pulsation damper and entire body are flexibly connected by sebific duct.
The hydraulic pump module includes at least oil pump and motor, and motor is connect with oil pump so that hydraulic pump module provides high pressure
Oil sources.
The beneficial effects of the present invention are:
Different from traditional householder method fixed by flexible installing, the present invention is pulsed by being added in hydraulic system
The pressure oil of the fluctuation of hydraulic pump module output is converted to the pressure oil at flat peak by damper and flexible connection, fundamentally gram
Pressure oscillation caused by oil pump rotates is taken, ensure that the stationarity of oil sources output, to reduce the impact to Hydraulic Elements, is improved
The service life and stability of Hydraulic Elements improve the stability and reliability of extruder extruding force and extrusion speed control.
It is further detailed below with reference to attached drawing.
Detailed description of the invention
Fig. 1 is hydraulic principle of embodiment of the present invention schematic diagram.
Fig. 2 be system pressure in 280Bar using the comparative situation figure of the pressure oscillation after the invention patent.
In figure, appended drawing reference: 1. hydraulic cylinders control valve block, 2. entire bodies, 3. sebific ducts, 4. pulsation dampers, 5. hydraulic steel
Pipe, 6. hydraulic pump modules.
Specific embodiment
Embodiment 1:
For low, this hair that overcomes the problems, such as in existing method that extrusion speed controls unstable, Hydraulic Elements service lifes
It is bright that a kind of extruder hydraulic system pressure fluctuation reduction method as shown in Figure 1 is provided, to reduce hydraulic system to Hydraulic Elements
Impact, improve the service life and stability of Hydraulic Elements, at the same promoted hydraulic system oil pressure output stability, Jin Erti
The stability and reliability of high extruder extruding force and extrusion speed control.
Extruder hydraulic system pressure fluctuates reduction method, the pressure oil output of hydraulic system, first by hydraulic pump module 6
Into pulsation damper 4, the noise that hydraulic pump module 6 passes over is filtered out by pulsation damper 4, while to output pressure
The wave crest and trough of oil are filtered and compress, and the pressure oil for being allowed to the fluctuation exported by hydraulic pump module 6 is converted to flat peak
Pressure oil, then entire body 2 is transported to by pulsation damper 4, valve block 1 is controlled by entire body 2 to hydraulic cylinder later, is controlled by hydraulic cylinder
The control of valve block 1 is completed to squeeze relevant action.
Hydraulic pump module 6 provides high pressure oil oil sources, when the output of the pressure oil of hydraulic system, first by hydraulic pump module 6
The noise that hydraulic pump module 6 passes over is filtered out, together by the self-characteristic of pulsation damper 4 into pulsation damper 4
When the wave crest and trough of pressure oil output are filtered and are compressed, be allowed to the pressure oil of the fluctuation exported by hydraulic pump module 6
The pressure oil at flat peak is converted to, then entire body 2 is transported to by pulsation damper 4, valve block 1 is controlled by entire body 2 to hydraulic cylinder later, is led to
The hydraulic cylinder control control of valve block 1 is crossed to complete to squeeze relevant action.
Embodiment 2:
On the basis of embodiment 1, in the present embodiment, the hydraulic pump module 6 is rigidly connected with pulsation damper 4,
Pulsation damper 4 is mounted on the exit of hydraulic pump module 6, meanwhile, pulsation damper 4 and entire body 2 are flexibly connected, entire body 2 with
Hydraulic cylinder controls valve block 1 and connects.
The hydraulic pump module 6 is rigidly connected with pulsation damper 4 by hydraulic steel pipe 5.
The model PULSDAEMPFER of the pulsation damper 4.Using German Rexroth company in the present embodiment
The pulsation damper 4 of offer, hydraulic pump module 6, which exports oil liquid, reduces pressure oscillation by pulsation damper 4.
Pulsation damper 4 is flexibly connected with entire body 2 by sebific duct 3.
The hydraulic pump module 6 includes at least oil pump and motor, and motor is connect with oil pump so that hydraulic pump module 6 provides height
Pressure oil oil sources.
Hydraulic pump module 6 is rigidly connected with pulsation damper 4 by hydraulic steel pipe 5, and the pressure oil of hydraulic system is defeated
When out, high pressure oil oil sources is provided by hydraulic pump module 6 first, hydraulic pump module 6 enters pulsation damper 4 through hydraulic steel pipe 5, leads to
The self-characteristic for crossing pulsation damper 4 filters out hydraulic pump module 6 and passes through the noise that hydraulic steel pipe 5 passes over, while to defeated
The wave crest of pressure oil and trough are filtered and compress out, and the pressure oil for being allowed to the fluctuation exported by hydraulic pump module 6 is converted to
The pressure oil at flat peak, then it is transported to entire body 2 through sebific duct 3 by pulsation damper 4, sebific duct 3 will be between pulsation damper 4 and entire body 2
It is flexibly connected, it is effective to reduce vibration transmitting.
In Fig. 2, a is the pressure oscillation situation of pressure normal oil liquid output in 280 Bar, and b is pressure in 280 Bar
Using the pressure oscillation situation after the invention patent, figure it is seen that effectively can filter and press using after the invention patent
The pressure oscillation of contracting hydraulic system is impacted small to keep the oil supply pressure of hydraulic system steady.
Claims (1)
1. extruder hydraulic system pressure fluctuates reduction method, it is characterised in that: the pressure oil of hydraulic system exports, first by liquid
Press pump component (6) enters pulsation damper (4), is made an uproar by what pulsation damper (4) filtered out that hydraulic pump module (6) passes over
Sound, while the wave crest and trough of pressure oil output are filtered and are compressed, it is allowed to the fluctuation exported by hydraulic pump module (6)
Pressure oil is converted to the pressure oil at flat peak, then is transported to entire body (2) by pulsation damper (4), later by entire body (2) to hydraulic cylinder
It controls valve block (1), completes to squeeze relevant action by hydraulic cylinder control valve block (1) control；The hydraulic pump module (6) and pulsation
Damper (4) rigid connection, pulsation damper (4) are mounted on the exit of hydraulic pump module (6), meanwhile, pulsation damper (4)
It is flexibly connected with entire body (2), entire body (2) is connect with hydraulic cylinder control valve block (1)；The hydraulic pump module (6) and damping of pulsation
Device (4) is rigidly connected by hydraulic steel pipe (5)；The model PULSDAEMPFER of the pulsation damper (4)；The pulsation resistance
Buddhist nun's device (4) and entire body (2) are flexibly connected by sebific duct (3)；The hydraulic pump module (6) includes at least oil pump and motor, motor
It is connect with oil pump so that hydraulic pump module (6) provides high pressure oil oil sources.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610057901.3A CN105650063B (en) | 2016-01-28 | 2016-01-28 | Extruder hydraulic system pressure fluctuates reduction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610057901.3A CN105650063B (en) | 2016-01-28 | 2016-01-28 | Extruder hydraulic system pressure fluctuates reduction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105650063A CN105650063A (en) | 2016-06-08 |
| CN105650063B true CN105650063B (en) | 2019-01-18 |
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ID=56488114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610057901.3A Active CN105650063B (en) | 2016-01-28 | 2016-01-28 | Extruder hydraulic system pressure fluctuates reduction method |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591666B (en) * | 2018-05-07 | 2019-07-02 | 吉林大学 | Divide chamber regulator control system built in a kind of movable tube |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2062658U (en) * | 1989-07-28 | 1990-09-26 | 黄益生 | Extruder for forming steps on outer surface of metal pipe |
| CN1399711A (en) * | 1999-09-06 | 2003-02-26 | 多布森工业公司 | Device for reducing pressure pulsations in hydraulic manifolds |
| CN103382866A (en) * | 2013-08-12 | 2013-11-06 | 安徽华菱汽车有限公司 | Novel-structure fuel pump lubricating oil pipe |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58142001A (en) * | 1982-02-12 | 1983-08-23 | Giichi Yamatani | High pressure fluid generating device |
| CZ15U1 (en) * | 1992-01-09 | 1993-02-17 | Hydrosystem Olomouc, Spol. S R.O. | Circuit arrangement of plunger pump |
| DE102006057991A1 (en) * | 2006-12-08 | 2008-06-12 | Polysius Ag | Mill with pressure system |
| CN201757076U (en) * | 2010-06-03 | 2011-03-09 | 云南大红山管道有限公司 | Underflow pump with flexible connecting device |
| CN203155468U (en) * | 2013-04-10 | 2013-08-28 | 宁德新能源科技有限公司 | Extrusion coating device |
| CN203532353U (en) * | 2013-09-04 | 2014-04-09 | 广东思豪液压机械有限公司 | Energy-saving hydraulic device of extruding machine |
-
2016
- 2016-01-28 CN CN201610057901.3A patent/CN105650063B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2062658U (en) * | 1989-07-28 | 1990-09-26 | 黄益生 | Extruder for forming steps on outer surface of metal pipe |
| CN1399711A (en) * | 1999-09-06 | 2003-02-26 | 多布森工业公司 | Device for reducing pressure pulsations in hydraulic manifolds |
| CN103382866A (en) * | 2013-08-12 | 2013-11-06 | 安徽华菱汽车有限公司 | Novel-structure fuel pump lubricating oil pipe |
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| Publication number | Publication date |
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| CN105650063A (en) | 2016-06-08 |
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