CN204807273U - Can prevent undulant throttle current stabilizer of air current - Google Patents
Can prevent undulant throttle current stabilizer of air current Download PDFInfo
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- CN204807273U CN204807273U CN201520495454.0U CN201520495454U CN204807273U CN 204807273 U CN204807273 U CN 204807273U CN 201520495454 U CN201520495454 U CN 201520495454U CN 204807273 U CN204807273 U CN 204807273U
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Abstract
The application discloses can prevent undulant throttle current stabilizer of air current contracts stifledly including connecting the body and two throttles, and the center that connects the body is provided with a axial through's cavity, and two throttles contract the stifled packing of interference respectively at the both ends of cavity, and every throttle contracts stifled center and all is provided with an axial shrinkage cavity and a toper chamber, and two toper chambeies set up in opposite directions. The contained angle that is between the toper generating line in every toper chamber and the chamber wall is 135. The diameter of section of cavity is 6mm, and the length of cavity is 30mm. The diameter that every throttle contracts stifled well axial shrinkage cavity is 1mm, and the length of every axial shrinkage cavity is 5mm. After adopting above -mentioned structure, utilize the stationary flow cavity that connects internal portion and form, carry out the buffer memory to the air current, reduce the fluctuation of air current, play the effect of throttle stationary flow, avoid the shake of manometer pointer to overcome the piston type air compressor when the steep rise of pump wind stage atmospheric pressure, the shortcoming of the manometer pointer shake that the air current fluctuation leads to.
Description
Technical field
The application relates to a kind of rail vehicle air damping servicing unit, particularly a kind of throttling constant-current stabilizer that can prevent airflow fluctuation.
Background technology
At present, the piston type air compressor adopting huge discharge on subway, air compressor machine is comparatively large at the stage airflow fluctuation of pump wind, and pressure increase stage air-flow extremely unstable, the shake of build-up of pressure list index, affects the reading of pressure more.Be typically provided with a throttle orifice to reduce gas flow, avoid tensimeter to shake, in fact, so only play the effect slightly slowing down pressure surge, but do not eliminate pressure surge completely.
Utility model content
The technical matters that the application will solve is for above-mentioned the deficiencies in the prior art, and a kind of throttling constant-current stabilizer that can prevent airflow fluctuation is provided, this can prevent the throttling constant-current stabilizer of airflow fluctuation from utilizing the current stabilization chamber of fittings body inside formation, buffer memory is carried out to air-flow, reduce the fluctuation of air-flow, play the effect of throttling current stabilization, avoid gauge hand to shake, thus overcome piston type air compressor when the pump wind stage, air pressure sharply rose, the shortcoming of the gauge hand shake that airflow fluctuation causes.
For solving the problems of the technologies described above, the technical scheme that the application adopts is:
A kind of throttling constant-current stabilizer that can prevent airflow fluctuation, comprise fittings body and two throttlings contracting is stifled, the center of described fittings body is provided with the through chamber of an axis, two stifled two ends being filled in described chamber respectively of throttling contracting, the center that each throttling contracting is blocked up is provided with an axial shrinkage cavity and a conical cavity, described conical cavity and axial shrinkage cavity are coaxially arranged, and mutually through; Conical cavity during two throttling contractings are stifled is arranged in opposite directions, and the center of chamber is all pointed in the tapered opening of each conical cavity.
The angle between the taper bus of the stifled middle conical cavity of each described throttling contracting and the chamber wall of described chamber being is 135 °.
Described chamber is cylindrical, and the diameter of section of chamber is 6mm, and the length of chamber is 30mm.
During each described throttling contracting is stifled, the diameter of axial shrinkage cavity is 1mm, and the length of each axial shrinkage cavity is 5mm.
Two described throttling contractings are stifled is all interference fit with described chamber.
Two described throttling contractings are stifled is respectively that first throttles contracting is stifled and the second throttling contracting is stifled, and wherein, first throttle contracting is stifled is interference fit with described chamber, and the second throttling contracting is stifled is integrated setting with described chamber.
After the application adopts said structure, there is following beneficial effect:
1. the chamber in above-mentioned fittings body, and the axial shrinkage cavity that two throttling contractings are stifled, form a current stabilization chamber, and air-flow is after this current stabilization chamber, and elimination fluctuated, being reflected on tensimeter is exactly that pointer process of rising or falling is very steady.
2. the design of above-mentioned conical cavity, can pass in and out chamber to air-flow and cushion.
3. the current stabilization chamber formed in above-mentioned fittings body, does not need die sinking monoblock cast to be formed, but adopts fittings body and throttling shrinkage cavity to coordinate formation.If this current stabilization chamber is cast in die sinking, then need special forging type, also want new mold, increase processing cost and cycle; The mode that the application adopts fittings body and throttling shrinkage cavity to cooperatively interact, has very large dirigibility, and the diameter of chamber and the diameter of axial shrinkage cavity all according to actual conditions flexible processing, can greatly reduce the cost of die sinking.
4. the current stabilization chamber formed in above-mentioned fittings body, as filled one " reservoir " in fittings body inside, air-flow has flowed into from the one end of " reservoir ", and the other end flows out, and substantially can be eliminated the fluctuation of air-flow, air current flow gentle transition by such transition; While playing throttling action, also there is certain buffering to air-flow.
In sum, throttling constant-current stabilizer ingenious conception, the structure of the application are simple, and flexible and convenient to use, the application can be widely used on all metro projects.Meanwhile, there being the industrial pressurized air field gas circuit compared with air flow fluctuation being provided with high-precision detection device (as tensimeter, pressure switch etc.), also can also can being used widely, there is good practical application meaning.
Accompanying drawing explanation
Fig. 1 shows a kind of structural representation that can prevent the throttling constant-current stabilizer of airflow fluctuation of the application;
Fig. 2 shows air current flow schematic diagram when a kind of throttling constant-current stabilizer that can prevent airflow fluctuation of the application uses.
Wherein have: 1. fittings body; 2. chamber; 3. first throttle contracting is stifled; 4. the second throttling contracting is stifled; 5. axial shrinkage cavity; 6. conical cavity; 7. taper bus; 8. chamber wall.
Embodiment
Below in conjunction with accompanying drawing and concrete better embodiment, the application is described in further detail.
As shown in Figure 1, a kind of throttling constant-current stabilizer that can prevent airflow fluctuation, comprises fittings body 1 and two throttling contractings are stifled.
The center of above-mentioned fittings body 1 is provided with the through chamber 2 of an axis.Chamber 2 is preferably the cylindrical of slender type, and the diameter of section of chamber 2 is preferably 6mm, and the length of chamber 2 is preferably 30mm.Like this, chamber 2 will form the main part of " reservoir ".
Two throttling contractings are stifled, are respectively first throttle contracting stifled 3 and the second throttling contracting stifled 4.
Two throttling contractings are blocked up and are had the preferred mounting means of the following two kinds:
1. the two ends that equal interference-fit type is filled in above-mentioned chamber 2 are blocked up in two kinds of throttling contractings, and also namely stifled 3 interference of first throttle contracting are filled in the left end of chamber 2, and the right-hand member that 4 interference are filled in chamber 2 is blocked up in the second throttling contracting.
Above-mentioned this mode, is particularly suitable for the transformation that the piston type air compressor of throttling current stabilization is not considered on Primordial Qi road, only need at the two ends of former fittings body 1 middle chamber 2, and each increase by above-mentioned throttling contracting is stifled.
2. the left end interference fit of first throttle contracting stifled 3 and chamber 2, the second throttling contracting stifled 4 is integrated setting with chamber 2, and also namely the second throttling contracting stifled 4 is cast with the die sinking of fittings body 1 one and formed, specifically as shown in Figure 1.
Above-mentioned this fittings body 1 and the stifled mode matched of throttling contracting, die sinking monoblock cast is not needed to be formed, do not need special forging type, do not need new mold, thus there is very large dirigibility, the diameter of chamber 2 and the diameter of axial shrinkage cavity 5, all according to actual conditions flexible processing, can greatly reduce the cost of die sinking.
The center that each throttling contracting is blocked up is provided with an axial shrinkage cavity 5 and a conical cavity 6, and conical cavity 6 and axial shrinkage cavity 5 are coaxially arranged, and mutually through; Conical cavity 6 during two throttling contractings are stifled is arranged in opposite directions, and the center of chamber is all pointed in the tapered opening of each conical cavity.Also namely the center of the tapered opening sensing chamber 2 of conical cavity 6 in 3 is blocked up in first throttle contracting, and in the second throttling contracting stifled 4, the center of chamber 2 is also pointed in the tapered opening of conical cavity 6.
Further, each above-mentioned throttling contracting is blocked up the angle between the taper bus 7 of middle conical cavity 6 and the chamber wall 8 of chamber 2 being and is all preferably 135 °.Such transition can eliminate the fluctuation of air-flow substantially, air current flow gentle transition; While playing throttling action, also there is certain buffering to air-flow.
Further, during each above-mentioned throttling contracting is stifled, the diameter of axial shrinkage cavity 5 is all preferably 1mm, and the length of each axial shrinkage cavity 5 is all preferably 5mm.
Chamber 2 in above-mentioned fittings body 1, and the axial shrinkage cavity 5 that two throttling contractings are stifled, form a current stabilization chamber, as shown in Figure 2, the direction of arrow in Fig. 2, be the flow direction of air-flow through current stabilization chamber, air-flow is after current stabilization chamber, elimination fluctuated, being reflected on tensimeter is exactly that pointer process of rising or falling is very steady.
More than describe the preferred implementation of the application in detail; but the application is not limited to the detail in above-mentioned embodiment, within the scope of the technical conceive of the application; can carry out multiple equivalents to the technical scheme of the application, these equivalents all belong to the protection domain of the application.
Claims (6)
1. one kind can prevent the throttling constant-current stabilizer of airflow fluctuation, it is characterized in that: comprise fittings body and two throttlings contracting is stifled, the center of described fittings body is provided with the through chamber of an axis, two stifled two ends being filled in described chamber respectively of throttling contracting, the center that each throttling contracting is blocked up is provided with an axial shrinkage cavity and a conical cavity, described conical cavity and axial shrinkage cavity are coaxially arranged, and mutually through; Conical cavity during two throttling contractings are stifled is arranged in opposite directions, and the center of chamber is all pointed in the tapered opening of each conical cavity.
2. the throttling constant-current stabilizer that can prevent airflow fluctuation according to claim 1, is characterized in that: the angle between the taper bus of the stifled middle conical cavity of each described throttling contracting and the chamber wall of described chamber being is 135 °.
3. the throttling constant-current stabilizer that can prevent airflow fluctuation according to claim 2, it is characterized in that: described chamber is cylindrical, the diameter of section of chamber is 6mm, the length of chamber is 30mm.
4. the throttling constant-current stabilizer that can prevent airflow fluctuation according to claim 3, is characterized in that: during each described throttling contracting is stifled, the diameter of axial shrinkage cavity is 1mm, and the length of each axial shrinkage cavity is 5mm.
5. the throttling constant-current stabilizer that can prevent airflow fluctuation according to claim 1, is characterized in that: two described throttling contractings are stifled is all interference fit with described chamber.
6. the throttling constant-current stabilizer that can prevent airflow fluctuation according to claim 1, it is characterized in that: two stifled first throttles that are respectively of described throttling contracting contract stifled stifled with the second throttling contracting, wherein, first throttle contracting is stifled is interference fit with described chamber, and the second throttling contracting is stifled is integrated setting with described chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520495454.0U CN204807273U (en) | 2015-07-10 | 2015-07-10 | Can prevent undulant throttle current stabilizer of air current |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520495454.0U CN204807273U (en) | 2015-07-10 | 2015-07-10 | Can prevent undulant throttle current stabilizer of air current |
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| CN204807273U true CN204807273U (en) | 2015-11-25 |
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| CN201520495454.0U Active CN204807273U (en) | 2015-07-10 | 2015-07-10 | Can prevent undulant throttle current stabilizer of air current |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043655A (en) * | 2015-07-10 | 2015-11-11 | 南车南京浦镇车辆有限公司 | Throttling and flow stabilizing device capable of preventing airflow fluctuation |
| CN112233405A (en) * | 2020-10-20 | 2021-01-15 | 河北匠心智联软件技术有限公司 | Internet of things acquisition module with ammeter |
-
2015
- 2015-07-10 CN CN201520495454.0U patent/CN204807273U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043655A (en) * | 2015-07-10 | 2015-11-11 | 南车南京浦镇车辆有限公司 | Throttling and flow stabilizing device capable of preventing airflow fluctuation |
| WO2017008695A1 (en) * | 2015-07-10 | 2017-01-19 | 中车南京浦镇车辆有限公司 | Flow regulation and stabilization device preventing air flow instability |
| CN112233405A (en) * | 2020-10-20 | 2021-01-15 | 河北匠心智联软件技术有限公司 | Internet of things acquisition module with ammeter |
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| C14 | Grant of patent or utility model | ||
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Address after: 210031 Nanjing province high tech Development Zone, Taishan Park North Pearl Road, No. 68 Patentee after: CRRC NANJING PUZHEN CO., LTD. Address before: 210031 Nanjing province high tech Industrial Development Zone, Taishan Park, North Pearl Road, No. 68 Patentee before: CSR NANJING PUZHEN Vehicles Co., Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20190402 Address after: No. 69 Mengxi Road, Wuhu Economic and Technological Development Zone, Wuhu City, Anhui Province, 241000 Patentee after: Zhongche town Bombardier Transportation Systems Co. Ltd. Address before: 210031 No. 68 Puzhu North Road, Taishan Park, Nanjing High-tech Development Zone, Jiangsu Province Patentee before: CRRC NANJING PUZHEN CO., LTD. |
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| TR01 | Transfer of patent right |