CN203384161U - Tubular wave absorber - Google Patents
Tubular wave absorber Download PDFInfo
- Publication number
- CN203384161U CN203384161U CN201320483608.5U CN201320483608U CN203384161U CN 203384161 U CN203384161 U CN 203384161U CN 201320483608 U CN201320483608 U CN 201320483608U CN 203384161 U CN203384161 U CN 203384161U
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- inner tube
- capsule
- end cap
- wall
- pressing plate
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Abstract
The utility model relates to a tubular wave absorber in a hydraulic system. The tubular wave absorber is formed by connecting a tubular shell, an inner tube, a central inner tube and two end covers, wherein the inner tube, the central inner tube and the two end covers are concentrically arranged from outside to inside in sequence, the inner tube is sleeved with a cylindrical capsule with certain thickness and elasticity, the central inner tube is an oil cavity and is filled with hydraulic oil, an air cavity is formed between the outer wall of the capsule and the inner well of the shell body and is filled with nitrogen with certain pressure, and an inflation valve is arranged on the lateral surface of the air cavity. The two ends of the capsule are connected with flange-type gaskets, folded edges of the gaskets are embedded in sealing grooves between the two end covers of the shell body and a pressing plate, and the end covers tightly press the pressing plate for sealing. The two ends of the central inner tube are communicated with a hydraulic oil pipeline, the wall of the central inner tube and the wall of the inner tube are respectively provided with a plurality of damping holes to enable the hydraulic oil to penetrate though the wall of the inner tube to make contact with the capsule. The tubular wave absorber has the advantages that when small fluctuation occurs in the hydraulic system, due to the fact that the cylindrical capsule has certain thickness and elasticity, the changes of inner pressure can be absorbed and compensated, and therefore certain effects of stabilizing pressure of the system and absorbing pulsation are achieved.
Description
Technical field
The utility model relates to the stable-pressure device of hydraulic system, specifically refers to a kind ofly can eliminate hydraulic machinery vibration wave in the course of the work, the tubular type wave breaker that protective system is stable.
Background technique
Hydraulic machinery is when work, and the factors such as pulsation due to mechanical vibration, hydraulic system itself, can produce the unstable of hydraulic system pressure.The hydraulic machinery of accumulator is equipped with, the fluctuation that hydraulic system pressure is produced, the pressure surge of the action energy absorption system by the capsule in accumulator or piston.But the minor fluctuations to hydraulic pipe line and system generation, still can make some precise hydraulic systems work.So in the precise hydraulic system, one of serial connection can be eliminated the device of hydraulic line pressure fluctuation, realizes really precise hydraulic Machine Design personnel's innovation dream and Gospel.
Summary of the invention
The purpose of this utility model is: give especially precise hydraulic machinery of hydraulic machinery, in hydraulic system, a device of eliminating small Pulse wave by damping of configuration, guarantee the safe operation of precise hydraulic machinery.
The technological scheme of the utility model technical solution problem is: a kind of tubular type wave breaker, by tubular shell and the inner tube, center inner tube and the two end cap that arrange with one heart successively from outside to inside, connected and composed, described inner tube outside cover has one to have certain thickness and flexible cylindric capsule, described center inner tube is oil pocket, inside be full of the hydraulic oil with certain pressure, between described capsule outer walls and inner walls, be air cavity, described housing side is provided with gas charging valve, is filled with the nitrogen of certain pressure to air cavity.
Described capsule two ends are connected with the flange-type pad, and the flange of described flange-type pad is embedded in the two end cap and the seal groove between pressing plate of housing, presses pressing plate by end cap and is sealed.
Inner tube two ends, described center are connected with hydraulic circuit, are provided with some damping holes on the inner tubal wall of center, and hydraulic oil is connected with the inner tube oil pocket.
Also be provided with some damping holes on described inner tubal wall, the hydraulic oil in the inner tube oil pocket is contacted with inside capsule wall through inner tubal wall.
Described housing two ends are equipped with end cap, and the end cap inboard is provided with the pressing plate with seal groove, between described end cap and housing, are provided with the I seal ring, between pressing plate and end cap, are provided with the II seal ring.
Benefit of the present invention is: while producing fluctuation or pulsation in hydraulic system, the damping and the drum type capsule that due to center inner tube and inner tube, form have certain thickness and elasticity, corresponding change also can occur in the wall thickness of capsule, so the variation of energy Absorbing Fluctuation and compensation internal pressure, thereby there is certain effect to stablizing precise hydraulic system pressure and Absorbing Fluctuation.
The accompanying drawing explanation
Fig. 1 is the utility model structure (analysing and observe) schematic diagram;
Fig. 2 is the cylindric capsule of the utility model and flange-type pad schematic diagram;
Fig. 3 is the enlarged diagram of A section in Fig. 2;
Each title and numbering in figure: 1-end cap, 2-I seal ring, 3-II seal ring, 4-housing, 5-center inner tube, 6-inner tube, 7-gas charging valve, 8-capsule, 9-pressing plate, 10-flange-type pad.
Embodiment
As shown in Figure 1 to Figure 3, the utility model tubular type wave breaker, connected and composed by tubular shell 4 and the inner tube 6 arranged with one heart successively from outside to inside, center inner tube 5 and two end cap 1.At inner tube 6 outside covers, there is one to there is certain thickness and flexible cylindric capsule 8.Center inner tube 5 is oil pocket, inside is full of the hydraulic oil with certain pressure.Between capsule 8 outer walls and housing 4 inwalls, be air cavity, housing 4 sides are provided with gas charging valve 7, before work, can inwardly fill with nitrogen, make in air cavity to keep certain working pressure.Capsule 8 two ends are connected with flange-type pad 10, and the flange of flange-type pad 10 is embedded in the two end cap 1 and the seal groove between pressing plate 9 of housing 4.Inner tube 5 two ends in center are connected with hydraulic circuit, on center inner tube 5 walls, are provided with some damping holes, and hydraulic oil is connected with inner tube 6 oil pockets.Also be provided with some damping holes on inner tube 6 walls, the hydraulic oil in oil pocket is contacted with capsule 8 through inner tube 6 walls.Housing 4 two ends are equipped with end cap 1, and end cap 1 inboard is provided with the pressing plate 9 with seal groove.Be provided with I seal ring 2 between end cap 1 and housing 4, between pressing plate 9 and end cap 1, be provided with II seal ring 3.
Below function of the present utility model and operation principles are described in detail again: inner tube 5 two ends, hydraulic pipe line Zhong，Jiang center that tubulose wave breaker serial or parallel connection accessed to hydraulic system are communicated with hydraulic pipe line.By gas charging valve 7 in advance to the air cavity inflated with nitrogen.When the primer fluid pressing system carries out work, when hydraulic pressure generation minor fluctuations in some cases, wave force passes to capsule 8 by the damping hole of center inner tube 5 and inner tube 6.Because capsule 8 has elasticity, its wall thickness can change under hydraulic fluid pressure, so can absorb vibration wave or damping pulsation.At this moment hydraulic fluid pressure raises or the power that reduces passes to the gas of capsule 8 outsides, and can eliminate small pressure and change, so can be reduced to minimum level by vibrating or pulsing, the effect of Here it is this wave breaker.
Claims (5)
1. a tubular type wave breaker, by tubular shell (4) and set gradually from outside to inside and with the concentric inner tube (6) of housing (4), center inner tube (5), with two end cap (1), connect and compose, it is characterized in that described inner tube (6) outside cover has one to have certain thickness and flexible cylindric capsule (8), described center inner tube (5) and inner tube (6) are oil pocket, inside be full of the hydraulic oil with certain pressure, between described capsule (8) outer wall and housing (4) inwall, be air cavity, described housing (4) side is provided with to air cavity fills the gas charging valve (7) with nitrogen.
2. tubular type wave breaker according to claim 1, it is characterized in that described capsule (8) two ends are connected with flange-type pad (10), the flange of described flange-type pad (10) is embedded in the two end cap (1) and the seal groove between pressing plate (9) of housing (4), presses pressing plate (9) by end cap (1) and is sealed.
3. tubular type wave breaker according to claim 1, is characterized in that the two ends of described center inner tube (5) are connected with hydraulic circuit, and center inner tube (5) wall is provided with some damping holes, and hydraulic oil is connected with inner tube (6) oil pocket.
4. tubular type wave breaker according to claim 1, is characterized in that also being provided with some damping holes on described inner tube (6) wall, and the hydraulic oil in inner tube (6) oil pocket is contacted with capsule (8) through inner tube (6) wall.
5. tubular type wave breaker according to claim 1, it is characterized in that described housing (4) two ends are equipped with end cap (1), described end cap (1) inboard is provided with the pressing plate (9) with seal groove, be provided with I seal ring (2) between housing (4) and end cap (1), between pressing plate (9) and end cap (1), be provided with II seal ring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320483608.5U CN203384161U (en) | 2013-08-06 | 2013-08-06 | Tubular wave absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320483608.5U CN203384161U (en) | 2013-08-06 | 2013-08-06 | Tubular wave absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203384161U true CN203384161U (en) | 2014-01-08 |
Family
ID=49872658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320483608.5U Expired - Fee Related CN203384161U (en) | 2013-08-06 | 2013-08-06 | Tubular wave absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203384161U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388607A (en) * | 2013-08-06 | 2013-11-13 | 奉化市朝日液压有限公司 | Pipe type wave absorber |
| CN107166824A (en) * | 2017-05-19 | 2017-09-15 | 珠海凌达压缩机有限公司 | Knockout and have its compressor |
| CN114458855A (en) * | 2022-02-08 | 2022-05-10 | 燕山大学 | Fluid pulsation attenuator based on mass-spring system and vibration absorption method thereof |
-
2013
- 2013-08-06 CN CN201320483608.5U patent/CN203384161U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388607A (en) * | 2013-08-06 | 2013-11-13 | 奉化市朝日液压有限公司 | Pipe type wave absorber |
| CN107166824A (en) * | 2017-05-19 | 2017-09-15 | 珠海凌达压缩机有限公司 | Knockout and have its compressor |
| CN114458855A (en) * | 2022-02-08 | 2022-05-10 | 燕山大学 | Fluid pulsation attenuator based on mass-spring system and vibration absorption method thereof |
| CN114458855B (en) * | 2022-02-08 | 2022-10-14 | 燕山大学 | Fluid pulsation attenuator based on mass-spring system and vibration absorption method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: ZTE East Xikou town Fenghua District Zhejiang city of Ningbo province No. 6 315000 Patentee after: NINGBO ASAHI HYDRAULIC Co.,Ltd. Address before: 315502 Zhejiang province Fenghua Xikou Town Industrial Zone Zongyan Road No. 2 Fenghua aolaier Hydraulic Co. Ltd. Patentee before: FENGHUA CHAORI HYDRAULIC Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20210806 |