CN203835871U - Buffer tank - Google Patents
Buffer tank Download PDFInfo
- Publication number
- CN203835871U CN203835871U CN201420262732.3U CN201420262732U CN203835871U CN 203835871 U CN203835871 U CN 203835871U CN 201420262732 U CN201420262732 U CN 201420262732U CN 203835871 U CN203835871 U CN 203835871U
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- CN
- China
- Prior art keywords
- hole
- expansion chamber
- orifice plate
- flexible sheet
- knock out
- Prior art date
- 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.)
- Expired - Fee Related
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- Fluid-Damping Devices (AREA)
Abstract
The utility model provides a buffer tank, which comprises a shell, a hole plate, an elastic membrane, wherein an expansion chamber is arranged in the shell, the shell is provided with an oil inlet hole and an oil outlet hole which are communicated with the expansion chamber, the hole plate and the elastic membrane are relatively arranged in the expansion chamber, the hole plate is provided with a through hole which is corresponding to the oil inlet hole, and a gap is arranged between the elastic membrane and the shell. The buffer tank is reliable in structure, and can achieve shock absorption and noise reduction.
Description
Technical field
The utility model relates to a kind of hydraulic pipe line element, is specifically related to a kind of knock out drum.
Background technique
In the hydraulic pipe line of automobile, the oil pump of stepless speed variator inside is connected with motor by coupling, and then provides power for speed changer liquid flows.The oil outlet of speed changer is connected with oil cooler, and oil cooler carries out cool cycles to the liquid of speed changer.Meanwhile, liquid can be passed to vibrating noise in car by media such as connecting pipeline and oil coolers, affects ride comfort, and low-frequency noise is particularly evident when engine speed is low.For reducing transmission oil pump noise, conventionally the connecting pipeline between speed changer and oil cooler is set as to rubber hose, but noise reduction damping effect is very poor at present.Unresolved the problems referred to above, conventionally at pipeline middle part series connection knock out drum, realize damping, existing knock out drum employing setting in expansion chamber has the orifice plate of a plurality of apertures and realizes flow-disturbing, there are the following problems for said structure: orifice plate is generally thinner, the long-term orifice plate that uses is easily torn or is out of shape from the edge in hole, affect normal damping noise reduction, when serious, affect the normal work of expansion chamber.Therefore be badly in need of a kind of reliable in structure, can realize the oil circuit Denoiser of damping noise reduction.
Model utility content
In order to address the above problem, the utility model provides a kind of knock out drum, its reliable in structure, can realize damping noise reduction.
The technological scheme addressing the above problem:
A kind of knock out drum, it comprises housing, orifice plate, flexible sheet, in described housing, it is expansion chamber, described housing has oil inlet hole and the oil outlet being communicated with expansion chamber, described orifice plate and described flexible sheet are oppositely arranged in described expansion chamber, described orifice plate has the opening corresponding with described oil inlet hole, between described flexible sheet and described housing, has gap.
Selectable, described oil outlet and described oil inlet hole are positioned at the same side of described orifice plate.
Selectable, described housing comprises the cylindrical shell of both ends open and the end cap that opening is sealed, described flexible sheet, described orifice plate be separately fixed at two described on end cap.
Selectable, described opening comprises near the first hole of described oil inlet hole, is connected with the first hole and size is less than second hole in the first hole.
Selectable, described expansion chamber is cylindric, and described the second hole and described expansion chamber coaxially arrange, 0.3～0.5 times of the cross-section area that the aperture in described the second hole is described expansion chamber.
Selectable, the thickness of described orifice plate is 3～5mm.
Selectable, comprise the fixed support, the pad that are fixed in described housing, described fixed support has second through hole, described flexible sheet, described pad are positioned at described second through hole, and the two ends of described flexible sheet are fixed with described fixed support, described housing respectively by described pad.
The beneficial effects of the utility model:
Knock out drum is serially connected in transmission oil cooling line, fluid is after knock out drum orifice plate, laminar flow is partly converted into turbulent flow, thereby to a certain degree reduced the vibration of fluid low-pressure, gap between flexible sheet and housing can guarantee that flexible sheet produces the vibration wave of certain frequency and phase place after being subject to fluid vibrational excitation, and the vibration of vibration wave and fluid is to after mixing, and fluid vibrates is decayed, the noise figure being passed in car reduces thus, has realized the reduction of pipeline vibration and noise.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment's knock out drum;
Fig. 2 is the generalized section of the utility model embodiment's knock out drum;
Fig. 3 is the partial enlarged drawing at the A place of Fig. 2.
Description of reference numerals: 1-housing, 11-expansion chamber, 12-oil inlet hole, 13-oil outlet, 14-cylindrical shell, 15-end cap, 2-orifice plate, 21-opening, 211-the first hole, 212-the second hole, 3-flexible sheet, 4-fixed support, 41-second through hole, 5-pad.
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the utility model is described in detail.
As shown in Figure 1, 2, knock out drum comprises housing 1, orifice plate 2, flexible sheet 3, in housing 1, it is expansion chamber 11, housing 1 has oil inlet hole 12 and the oil outlet 13 being communicated with expansion chamber 11, orifice plate 2 is oppositely arranged in expansion chamber 11 with flexible sheet 3, orifice plate 2 has the opening corresponding with oil inlet hole 12 21, between flexible sheet 3 and housing 1, has gap.Knock out drum is serially connected in transmission oil oil cooling pipe road, fluid is after knock out drum orifice plate 2, laminar flow is partly converted into turbulent flow, thereby to a certain degree reduced the vibration of fluid low-pressure, flexible sheet 3 is subject to fluid vibrational excitation to produce the vibration wave of certain frequency and phase place, and vibration wave and fluid vibration are to after mixing, and fluid vibrates is decayed, the noise figure being passed in car reduces thus, has realized the reduction of pipeline vibration and noise.
Oil outlet 13 can be positioned at the arbitrary position on housing 1, and oil outlet 13, oil inlet hole 12 can be positioned at the same side of orifice plate 2 or homonymy not.Preferably, oil outlet 13 and oil inlet hole 12 are positioned at the same side of orifice plate 2.Adopt this structure fluid to act on flexible sheet 3, effectively change the vibration frequency of fluid, there is better damping noise reduction effect.
Housing 1 can be the shapes such as cylindric, spherical, the square bodily form, and preferred, housing 1 comprises the cylindrical shell 14 of both ends open and the end cap 15 that opening is sealed, and flexible sheet 3, orifice plate 2 are separately fixed in two end cap 15.Adopt said structure to there is better assembly process process.
Opening 21 can be consistent hole, aperture, can be also cone shape hole etc.Preferably, opening 21 comprises near the first hole 211 of oil inlet hole 12, is connected with the first hole 211 and size is less than second hole 212 in the first hole 211.The first hole 211 makes the smooth and easy inflow of fluid, is cushioned; The second hole 212, for fluid frequency is changed, changes the fluid frequency that enters expansion chamber 11, then after contacting with shell fragment, fluid frequency generation secondary changes, and final frequency differentiation, has eliminated vibration and noise that frequency resonance brings.
The aperture in the second hole 212 is less than the aperture of expansion chamber 11 could realize the mobile effect of buffering fluid.Preferably, expansion chamber 11 is cylindric, and the second hole 212 coaxially arranges with expansion chamber 11, and the aperture in the second hole 212 is 0.3～0.5 times of cross-section area of expansion chamber 11.
The thickness of orifice plate 2 can arrange as required.Preferably, the thickness of orifice plate 2 is 3～5mm.Adopt the orifice plate 2 of this thickness, can realize fast the differentiation of fluid frequency.
As shown in Figure 3, diaphragm can be fixed by the ring support consistent with flexible sheet 3 profiles, also can realize by snap fit fixing.Preferably, comprise the fixed support 4, the pad 5 that are fixed in housing 1, fixed support 4 has second through hole 41, and flexible sheet 3, pad 5 are positioned at second through hole 41, and the two ends of flexible sheet 3 are fixed with fixed support 4, housing 1 respectively by pad 5.By pad 5, flexible sheet 3 is fixed, fixation, is convenient to dismounting.
Although the utility model is described in conjunction with above embodiment, but the utility model is not limited to above-described embodiment, and be only subject to the restriction of claims, those of ordinary skills can easily modify to it and change, but do not leave essence design of the present utility model and scope.
Claims (7)
1. a knock out drum, it comprise in for the housing of expansion chamber be arranged at the orifice plate in described expansion chamber, described housing has oil inlet hole and the oil outlet being communicated with expansion chamber, it is characterized in that, also comprise flexible sheet, described orifice plate and described flexible sheet are oppositely arranged in described expansion chamber, and described orifice plate has the opening corresponding with described oil inlet hole, between described flexible sheet and described housing, have gap.
2. knock out drum according to claim 1, is characterized in that, described oil outlet and described oil inlet hole are positioned at the same side of described orifice plate.
3. knock out drum according to claim 1, is characterized in that, described housing comprises the cylindrical shell of both ends open and the end cap that opening is sealed, described flexible sheet, described orifice plate be separately fixed at two described on end cap.
4. knock out drum according to claim 1, is characterized in that, described opening comprises near the first hole of described oil inlet hole, is connected with described the first hole and size is less than second hole in the first hole.
5. knock out drum according to claim 4, is characterized in that, described expansion chamber is cylindric, and described the second hole and described expansion chamber coaxially arrange, 0.3～0.5 times of the cross-section area that the aperture in described the second hole is described expansion chamber.
6. knock out drum according to claim 1, is characterized in that, the thickness of described orifice plate is 3～5mm.
7. according to the knock out drum described in any one in claim 1～6, it is characterized in that, comprise the fixed support, the pad that are fixed in described housing, described fixed support has second through hole, described flexible sheet, described pad are positioned at described second through hole, and the two ends of described flexible sheet are fixed with described fixed support, described housing respectively by described pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420262732.3U CN203835871U (en) | 2014-05-21 | 2014-05-21 | Buffer tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420262732.3U CN203835871U (en) | 2014-05-21 | 2014-05-21 | Buffer tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203835871U true CN203835871U (en) | 2014-09-17 |
Family
ID=51513718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420262732.3U Expired - Fee Related CN203835871U (en) | 2014-05-21 | 2014-05-21 | Buffer tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203835871U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782143A (en) * | 2016-03-24 | 2016-07-20 | 中国北方发动机研究所(天津) | Anti-vibration device of rapid hydraulic adjusting system |
| CN107842705A (en) * | 2016-09-20 | 2018-03-27 | 北京汽车动力总成有限公司 | A kind of machine oil pulse buffer and automobile |
| CN110500341A (en) * | 2019-08-30 | 2019-11-26 | 中航力源液压股份有限公司 | A kind of bindiny mechanism of the surge flask applied to aerospace hydraulic pump and installation method |
-
2014
- 2014-05-21 CN CN201420262732.3U patent/CN203835871U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782143A (en) * | 2016-03-24 | 2016-07-20 | 中国北方发动机研究所(天津) | Anti-vibration device of rapid hydraulic adjusting system |
| CN107842705A (en) * | 2016-09-20 | 2018-03-27 | 北京汽车动力总成有限公司 | A kind of machine oil pulse buffer and automobile |
| CN110500341A (en) * | 2019-08-30 | 2019-11-26 | 中航力源液压股份有限公司 | A kind of bindiny mechanism of the surge flask applied to aerospace hydraulic pump and installation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20190521 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |