CN105156413A - Resonance type hydraulic pulsation attenuating device capable of recycling energy - Google Patents
Resonance type hydraulic pulsation attenuating device capable of recycling energy Download PDFInfo
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- CN105156413A CN105156413A CN201510687590.4A CN201510687590A CN105156413A CN 105156413 A CN105156413 A CN 105156413A CN 201510687590 A CN201510687590 A CN 201510687590A CN 105156413 A CN105156413 A CN 105156413A
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- permanent magnet
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- hydraulic pulsation
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- piston rod
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Abstract
The invention discloses a resonance type hydraulic pulsation attenuating device capable of recycling energy. Hydraulic pulsation energy can be recycled in an electric energy mode, and meanwhile intrinsic frequency can be changed by regulating output currents. The device comprises a shell and an end cover, one end of the shell is fixedly connected with the end cover through a thread, a sealing ring is arranged between the shell and the end cover, and a hydraulic pulsation input opening is formed in the other end of the shell. A piston rod is arranged in the shell, a first permanent magnet is fixedly arranged at one end of the piston rod, the other end of the piston rod is connected with the shell in a sliding mode, and a gap is formed between the sliding connecting parts of the piston rod and the shell. A second permanent magnet and a third permanent magnet are fixedly arranged in the shell and located on the two sides of the first permanent magnet respectively, and the magnetizing direction of the second permanent magnet and the magnetizing direction of the third permanent magnet are opposite to the magnetizing direction of the first permanent magnet. A coil is fixedly arranged on the outer surface of the shell.
Description
Technical field
The present invention relates to hydraulic pulsation decay technique, particularly relate to a kind of resonant hydraulic pulsation attenuating device hydraulic pulsation energy being carried out reclaim with electrical energy form.
Background technique
In hydraulic system, it is not completely uniform that the working principle of oil hydraulic pump determines output flow, but periodically pulsing.After the output flow of pulsation runs into load, system can produce pressure pulsation and propagate along hydraulic pipe line, causes vibration & noise.Along with hydraulic system is to the development in high speed and high pressure and high-power direction, vibration & noise has become one of principal element of influential system performance and used life, even can cause equipment failure and breaking-up time serious.
Installing hydraulic pulsation attenuating device is the effective measures weakening hydraulic pulsation, reduce hydraulic system vibration & noise.According to or without external energy input, hydraulic pulsation attenuating device can be divided into active and passive-type, and wherein passive-type does not need external energy input, have good reliability, etc. the advantage such as low, therefore actual application value is higher.Resonant hydraulic pulsation attenuating device is that a class applies very wide passive-type hydraulic pulsation attenuating device, resonance structure is utilized to absorb hydraulic pressure pulsating energy, special when structural natural frequencies close with hydraulic pulsation frequency or equal time, structure is in resonance state, the hydraulic pulsation energy absorbed is the highest, and attenuating is best.
Conventional resonant hydraulic pulsation attenuating device has the following disadvantages, and one is become heat dissipation to fall the hydraulic pulsation transformation of energy of absorption, not only wastes energy, and system also can be caused to generate heat and service life reduction; Two is very strong to the frequency selectivity of hydraulic pulsation, after apparatus structure parameter is determined, and the hydraulic pulsation of a certain frequency range that can only decay.
Summary of the invention
In order to overcome the resonant hydraulic pulsation attenuating device deficiency in actual applications of the routine related in background technique, the object of the present invention is to provide a kind of resonant hydraulic pulsation attenuating device with energy recovery function, hydraulic pulsation energy can be reclaimed with electrical energy form, change natural frequency by regulation output electric current simultaneously.
In order to achieve the above object, the technical solution used in the present invention is:
The resonant hydraulic pulsation attenuating device of recoverable energy comprises housing and an end cap, and one end of housing is fixedly connected with by screw thread with end cap, between housing and end cap, arrange seal ring, and the other end of housing is hydraulic pulsation inlet opening; Enclosure interior is provided with piston rod, and one end of piston rod is fixedly installed the first permanent magnet, and the other end and the housing of piston rod are slidably connected, and the position that is slidably connected of piston rod and housing is provided with gap; Be fixedly installed the second permanent magnet and the 3rd permanent magnet in enclosure interior, the second permanent magnet and the 3rd permanent magnet lay respectively at the first permanent magnet both sides, and the direction of magnetization of the second permanent magnet, the 3rd permanent magnet is all contrary with the direction of magnetization of the first permanent magnet; Coil is fixedly installed in housing outer surface.
The present invention is compared with background technique, and having useful effect is:
(1) the hydraulic pulsation energy that resonant hydraulic pulsation attenuating device absorbs can reclaim with electrical energy form by the present invention, improves capacity usage ratio and reduces heating value.Other device that the energy reclaimed can be hydraulic system is powered, such as sensor, solenoid valve etc.
(2) output current of resonant hydraulic pulsation attenuating device provided by the invention regulates by the controlled rectification technology of maturation, and change output current be equivalent to change equivalent spring rigidity, also namely the natural frequency of this resonant hydraulic pulsation attenuating device be easy to regulate.
(3) present invention employs permanent magnet to reset, structure is simple, good reliability.
Accompanying drawing explanation
Fig. 1 is the resonant hydraulic pulsation attenuating device schematic diagram of a kind of recoverable energy provided by the invention.
In figure: 1, end cap, 2, housing, 3, coil, the 4, the 3rd permanent magnet, the 5, second permanent magnet, 6, seal ring, the 7, first permanent magnet, 8, piston rod, 9, gap, 10, hydraulic pulsation inlet opening.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, the resonant hydraulic pulsation attenuating device of a kind of recoverable energy of the present invention comprises housing 2 and end cap 1, one end of housing 2 is fixedly connected with by screw thread with end cap 1, arranges seal ring 6 between housing 2 and end cap 1, and the other end of housing 2 is hydraulic pulsation inlet opening 10; Housing 2 inside is provided with piston rod 8, and one end of piston rod 8 is fixedly installed the first permanent magnet 7, and the other end and the housing 2 of piston rod 8 are slidably connected, and the position that is slidably connected of piston rod 8 and housing 2 is provided with gap 9; Be fixedly installed the second permanent magnet 5 and the 3rd permanent magnet 4, second permanent magnet 5 and the 3rd permanent magnet 4 in housing 2 inside and lay respectively at the first permanent magnet 7 both sides, the direction of magnetization of the second permanent magnet 5, the 3rd permanent magnet 4 is all contrary with the direction of magnetization of the first permanent magnet 7; Coil 3 is fixedly installed at the outer surface of housing 2.
Working principle of the present invention is as follows:
(1) when hydraulic pulsation inlet opening 10 not input hydraulic pressure oil or input pressure value uniform hydraulic oil time, under the electromagnetic force of the second permanent magnet 4 and the 3rd permanent magnet 5, piston rod 8 and the first permanent magnet 7 remain on equilibrium position, and namely device does not work.
(2) when the hydraulic oil of hydraulic pulsation inlet opening 10 incoming pressure pulsatile change, because gap 9 is very little, make housing 2 instantaneous pressure that is inner and hydraulic pulsation inlet opening 10 unequal; Piston rod 8 and the first permanent magnet 7 due to by force unbalance, and under the electromagnetic force of the second permanent magnet 4 and the 3rd permanent magnet 5, will do and back and forth shake motion, and cause the magnetic flux through coil 3 to change; According to electromagnetic induction principle, the output terminal of coil 3 will produce induction electromotive force, and by output current after connection electrical load, reclaim with electrical energy form by hydraulic pulsation energy; Meanwhile, the size of output current regulates by the controlled rectification technology of maturation, thus realizes the adjustment to this resonant hydraulic pulsation attenuating device natural frequency.
Finally, it is also to be noted that what enumerate above is only a specific embodiment of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be had.All distortion that those of ordinary skill in the art can directly derive from content disclosed by the invention or associate, all should think protection scope of the present invention.
Claims (1)
1. the resonant hydraulic pulsation attenuating device of a recoverable energy, it is characterized in that: comprise housing (2) and end cap (1), one end of housing (2) is fixedly connected with by screw thread with end cap (1), between housing (2) and end cap (1), arrange seal ring (6), the other end of housing (2) is hydraulic pulsation inlet opening (10); Housing (2) inside is provided with piston rod (8), one end of piston rod (8) is fixedly installed the first permanent magnet (7), the other end and the housing (2) of piston rod (8) are slidably connected, and the position that is slidably connected of piston rod (8) and housing (2) is provided with gap (9); The second permanent magnet (5) and the 3rd permanent magnet (4) is fixedly installed in housing (2) inside, second permanent magnet (5) and the 3rd permanent magnet (4) lay respectively at the first permanent magnet (7) both sides, and the direction of magnetization of the direction of magnetization all with the first permanent magnet (7) of the second permanent magnet (5), the 3rd permanent magnet (4) is contrary; Coil (3) is fixedly installed at the outer surface of housing (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510687590.4A CN105156413A (en) | 2015-10-22 | 2015-10-22 | Resonance type hydraulic pulsation attenuating device capable of recycling energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510687590.4A CN105156413A (en) | 2015-10-22 | 2015-10-22 | Resonance type hydraulic pulsation attenuating device capable of recycling energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105156413A true CN105156413A (en) | 2015-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510687590.4A Pending CN105156413A (en) | 2015-10-22 | 2015-10-22 | Resonance type hydraulic pulsation attenuating device capable of recycling energy |
Country Status (1)
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| CN (1) | CN105156413A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704167A (en) * | 2016-12-19 | 2017-05-24 | 浙江大学 | Pressure pulsation attenuation device integrated in plunger pump and capable of adjusting attenuation frequency |
Citations (7)
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| JPH06101793A (en) * | 1992-09-18 | 1994-04-12 | Daikin Ind Ltd | Active pulsation reducing device |
| CN1257338A (en) * | 1999-04-28 | 2000-06-21 | 释悟莲 | Cylinder generator and electricity driven vehicle transmission device using same |
| CN1971082A (en) * | 2005-11-25 | 2007-05-30 | 比亚迪股份有限公司 | Shock absorber and vehicle suspension system having same |
| CN102425635A (en) * | 2011-10-12 | 2012-04-25 | 黄强 | Shock absorber for generating power with suspension magnet in damping working state |
| CN102664556A (en) * | 2012-06-01 | 2012-09-12 | 浙江师范大学 | Piezoelectric energy harvester for recovering pressure pulsation energy of liquid |
| CN203926233U (en) * | 2014-07-15 | 2014-11-05 | 九江学院 | The resonant hydraulic filter of a kind of electromagnetic type automated variable rigidity |
| CN104218768A (en) * | 2014-08-21 | 2014-12-17 | 南京艾驰电子科技有限公司 | Vibration energy transducer and vibration energy collecting circuit |
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2015
- 2015-10-22 CN CN201510687590.4A patent/CN105156413A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06101793A (en) * | 1992-09-18 | 1994-04-12 | Daikin Ind Ltd | Active pulsation reducing device |
| CN1257338A (en) * | 1999-04-28 | 2000-06-21 | 释悟莲 | Cylinder generator and electricity driven vehicle transmission device using same |
| CN1971082A (en) * | 2005-11-25 | 2007-05-30 | 比亚迪股份有限公司 | Shock absorber and vehicle suspension system having same |
| CN102425635A (en) * | 2011-10-12 | 2012-04-25 | 黄强 | Shock absorber for generating power with suspension magnet in damping working state |
| CN102664556A (en) * | 2012-06-01 | 2012-09-12 | 浙江师范大学 | Piezoelectric energy harvester for recovering pressure pulsation energy of liquid |
| CN203926233U (en) * | 2014-07-15 | 2014-11-05 | 九江学院 | The resonant hydraulic filter of a kind of electromagnetic type automated variable rigidity |
| CN104218768A (en) * | 2014-08-21 | 2014-12-17 | 南京艾驰电子科技有限公司 | Vibration energy transducer and vibration energy collecting circuit |
Non-Patent Citations (1)
| Title |
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| 潘权等: "模态共振液压脉动衰减器仿真与实验研究", 《机械科学与技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704167A (en) * | 2016-12-19 | 2017-05-24 | 浙江大学 | Pressure pulsation attenuation device integrated in plunger pump and capable of adjusting attenuation frequency |
| CN106704167B (en) * | 2016-12-19 | 2018-05-08 | 浙江大学 | A kind of pressure fluctuation attenuating device for the adjustable damping frequency being integrated in plunger pump |
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Application publication date: 20151216 |
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| RJ01 | Rejection of invention patent application after publication |