CN205578224U - Track traffic oil -free air compressor's pneumatic valve noise restraint system - Google Patents
Track traffic oil -free air compressor's pneumatic valve noise restraint system Download PDFInfo
- Publication number
- CN205578224U CN205578224U CN201620288185.5U CN201620288185U CN205578224U CN 205578224 U CN205578224 U CN 205578224U CN 201620288185 U CN201620288185 U CN 201620288185U CN 205578224 U CN205578224 U CN 205578224U
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- air
- cylinder head
- cylinder
- discharge chamber
- air inlet
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Abstract
The utility model provides a track traffic oil -free air compressor's pneumatic valve noise restraint system, including air cleaner and cylinder head, crankcase and air inlet pipeline, the air inlet of crankcase and air cleaner's gas vent intercommunication, the gas vent of crankcase passes through air inlet pipeline and cylinder head intercommunication, the cylinder head includes cylinder air inlet, cylinder gas vent, breathe in chamber and exhaust chamber, the cylinder air inlet and the chamber intercommunication of breathing in, and cylinder gas vent and exhaust chamber intercommunication, breathe in chamber and exhaust chamber are the setting at the annular internal cavity of the inside of cylinder head, and the chamber of breathing in sets up between the the central axis of the inner ring side in exhaust chamber and cylinder head. The utility model discloses a crankcase regard as inlet channel's a buffer tank to creative design, can carry out the labyrinth through the side noise of breathing in to the pneumatic valve and absorb many times and weaken the breathe in noise of air current before the entering cylinder that admit air. In addition, the unique design of cylinder head can prevent the excessive of the noise of breathing in to reduce the high frequency frequency spectrum.
Description
Technical field
This utility model relates to the air valve noise suppression system of a kind of oilless air compressor, the air valve noise suppression system of a kind of track traffic oilless air compressor.
Background technology
Oilless air compressor serves a vital effect in track traffic, it typically is rail traffic vehicles and provides pneumatic system, is operated the brake of rail vehicle by pneumatic system.The oilless air compressor used in track traffic is all Piston Air Compressor, current Piston Air Compressor generally also exists the problem that air valve noise is big and radio-frequency component is many, the environment of surrounding is created certain impact, the suction of air-flow and discharge when causing the major influence factors of these problems or air compressor machine operating, the suction of air-flow and the parts involved by discharging have air filter and the cylinder head being arranged in cylinder block being connected with air filter.But, equipment noise aspect is required the highest by field of track traffic, especially the strictest to the noise requirements of the air compressor machine being arranged in the subway light rail or high ferro motor-car of passenger transport, conventional civilian piston type oilless air compressor cannot meet the rail traffic vehicles requirement for noise.Noise reduction process for oilless air compressor is all installation deafener on cylinder at present, still can not reach the requirement of rail traffic vehicles.
Utility model content
The purpose of this utility model is just to provide the air valve noise suppression system of a kind of track traffic oilless air compressor, to solve to meet the rail traffic vehicles requirement to noise owing to noise is big present in existing track traffic oilless air compressor.
This utility model is achieved in that
A kind of air valve noise suppression system of track traffic oilless air compressor, including air filter, cylinder head, for accommodating crankcase and the air inlet pipeline of bent axle, and configure by following location relation: described crankcase connects with described cylinder head and described air filter simultaneously, the air inlet of described crankcase connects with the air vent of described air filter, and the air vent of described crankcase is connected with described cylinder head by described air inlet pipeline；Described cylinder head includes cylinder air inlet, cylinder exhaust port, suction muffler and discharge chamber, described cylinder air inlet connects with described suction muffler, described cylinder exhaust port connects with described discharge chamber, described suction muffler and described discharge chamber are the annular cavity of axis centered by the central axis of described cylinder head of the inside being arranged on described cylinder head, and described discharge chamber is surrounded on outside described suction muffler.
The end face of described discharge chamber is 15 ° of inclinations, and the top of the internal ring side of described discharge chamber is higher than the top of its outer shroud side.
It is coated with suction to make an uproar coating in the outer shroud side of end face, the end face of described discharge chamber and the described discharge chamber of described suction muffler.
This utility model includes air filter, cylinder head, crankcase and air inlet pipeline, air filter connects with crankcase, inlet air flow first buffers after air filter filters in crankcase, cylinder is entered by cylinder head again by air inlet pipeline, replace the flow process directly being entered cylinder after traditional air inlet flows through air filter by cylinder head, with inlet air flow through air filter, the region that crankcase and air inlet pipeline are formed is the air intake duct of oilless air compressor, also it is the overflow channel of suction noise simultaneously, in crankcase, the noise to inlet air flow carries out multiple impacts absorption, air valve suction side noise is carried out labyrinth type repeatedly absorb, air suction and noise is made to be greatly attenuated before entering cylinder.In cylinder head, suction muffler is arranged between internal ring side and the central axis of cylinder head of discharge chamber, it is possible to stop air suction and noise excessive.Make an uproar coating additionally, be coated with suction in the outer shroud side of the end face of suction muffler, the end face of discharge chamber and described discharge chamber, it is possible to by reducing the noise propagating overall reduction oilless air compressor of high frequency noise.
This utility model by creative design using crankcase as a surge tank of inlet channel, the noise of charge air flow, the air suction and noise that charge air flow can be weakened before entering cylinder by air valve suction side noise is carried out labyrinth type repeatedly absorb again can either be reduced by the pulsation phenomenon of smooth charge air flow.Additionally, the unique design of cylinder head can stop the excessive of air suction and noise, and reduce high frequency spectrum, hence it is evident that reduce the noise of human body.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of cylinder head of the present utility model.
In figure: 1, air filter；2, cylinder head；2-1, cylinder air inlet；2-2, cylinder exhaust port；2-3, suction muffler；2-4, discharge chamber；3, crankcase；4, air inlet pipeline；5, coating of making an uproar is inhaled.
Detailed description of the invention
As depicted in figs. 1 and 2, a kind of air valve noise suppression system of track traffic oilless air compressor, including air filter 1, cylinder head 2, for accommodating crankcase 3 and the air inlet pipeline 4 of bent axle, in the present embodiment, air filter 1 is shell-and-plate air filter, including housing and the filter element being arranged on enclosure interior, the filtering surface of filter element is parallel with the plane of the respective side of crankcase.Crankcase 3 connects with cylinder head 2 and air filter 1 simultaneously, and the air inlet of crankcase 3 connects with the air vent of air filter 1, and the air vent of crankcase 3 is connected with cylinder head 2 by air inlet pipeline 4.Cylinder head 2 includes cylinder air inlet 2-1, cylinder exhaust port 2-2, suction muffler 2-3 and discharge chamber 2-4, cylinder air inlet 2-1 connects with suction muffler 2-3, cylinder exhaust port 2-2 connects with discharge chamber 2-4, suction muffler 2-3 and discharge chamber 2-4 is the annular cavity of axis centered by the central axis of cylinder head 2 of the inside being arranged on cylinder head 2, and suction muffler 2-3 is arranged between the internal ring side of discharge chamber 2-4 and the central axis of cylinder head 2.In the present embodiment, suction muffler 2-3 and discharge chamber 2-4 is separated by tubular dividing plate, suction muffler 2-3 is arranged on the inner side of tubular dividing plate, discharge chamber 2-4 is arranged on the outside of tubular dividing plate, the central axis of tubular dividing plate and the central axes of cylinder head 2, the bottom of tubular dividing plate is concordant with the bottom of cylinder head 2.The central axis of ring cylinder air inlet 2-1 and the centerline axis parallel of cylinder exhaust port 2-2 are arranged, and the central axis of the central axis of cylinder air inlet 2-1 and cylinder exhaust port 2-2 all with the central axis upright of cylinder head 2, the central axis of cylinder air inlet 2-1 is slightly above the central axis of cylinder exhaust port 2-2.The radial width of the suction muffler 2-3 radial width less than discharge chamber 2-4.Hole, location it is provided with at the central axis of cylinder head 2.
The end face of discharge chamber 2-4 is 15 ° of inclinations, and the top of the internal ring side of discharge chamber 2-4 is that outer low and inner high 15 ° tilt higher than the top of its outer shroud side, the i.e. end face of discharge chamber 2-4.Discharge chamber uses this non-linear variable section structure, it is possible to eliminate the sympathetic response enhancing that characteristic frequency causes.It is coated with suction to make an uproar coating 5 in the outer shroud side of end face, the end face of discharge chamber 2-4 and the discharge chamber 2-4 of suction muffler 2-3.In the present embodiment, the end face of the close cylinder air inlet 2-1 of the discharge chamber 2-4 bottom less than cylinder air inlet 2-1, the end face of the close cylinder air inlet 2-1 of discharge chamber 2-4 is arranged in parallel to the plane of cylinder head 2 end face.Suction coating 5 of making an uproar selects thermoplastic coatings, it is possible to reduce the propagation of high frequency noise.
As depicted in figs. 1 and 2, the method for employing this utility model suppression air valve noise is:
(1) air inlet of crankcase 3 is connected with the air vent of air filter 1, arranging air inlet pipeline 4 makes the air vent of crankcase 3 connect with the cylinder air inlet mouth 2-1 arranged in cylinder head 2, thus makes the gas from air filter 1 enter cylinder head 2 through row crankcase 3；
(2) in cylinder head 2, setting is shaped as the suction muffler 2-3 and discharge chamber 2-4 of annular cavity, and make discharge chamber 2-4 be surrounded on outside suction muffler 2-3, it is coated with suction in the outer shroud side of end face, the end face of discharge chamber 2-4 and the discharge chamber 2-4 of suction muffler 2-3 and makes an uproar coating 5；Making cylinder air inlet 2-1 connect with suction muffler 2-3, cylinder exhaust port 2-2 connects with discharge chamber 2-4, thus make air-flow through cylinder air inlet 2-1, suction muffler 2-3, discharge chamber 2-4, then through cylinder exhaust port 2-2 discharge；Wherein, the end face of discharge chamber 2-4 is 15 ° of inclinations, and diminishes along airflow direction discharge chamber area of section.
This utility model uses above method, makes air-flow airflow direction circulation as shown in Fig. 1, Fig. 2, can effectively reduce unofficial biography noise, thus fully meets in track traffic the demand to noise control.
Claims (3)
1. the air valve noise suppression system of a track traffic oilless air compressor, it is characterized in that, including air filter, cylinder head, for accommodating crankcase and the air inlet pipeline of bent axle, and configure by following location relation: described crankcase connects with described cylinder head and described air filter simultaneously, the air inlet of described crankcase connects with the air vent of described air filter, and the air vent of described crankcase is connected with described cylinder head by described air inlet pipeline；Described cylinder head includes cylinder air inlet, cylinder exhaust port, suction muffler and discharge chamber, described cylinder air inlet connects with described suction muffler, described cylinder exhaust port connects with described discharge chamber, described suction muffler and described discharge chamber are the annular cavity of axis centered by the central axis of described cylinder head of the inside being arranged on described cylinder head, and described discharge chamber is surrounded on outside described suction muffler.
The air valve noise suppression system of track traffic oilless air compressor the most according to claim 1, it is characterised in that the end face of described discharge chamber is 15 ° of inclinations, the top of the internal ring side of described discharge chamber is higher than the top of its outer shroud side.
The air valve noise suppression system of track traffic oilless air compressor the most according to claim 1, it is characterised in that be coated with suction in the outer shroud side of end face, the end face of described discharge chamber and the described discharge chamber of described suction muffler and make an uproar coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620288185.5U CN205578224U (en) | 2016-04-08 | 2016-04-08 | Track traffic oil -free air compressor's pneumatic valve noise restraint system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620288185.5U CN205578224U (en) | 2016-04-08 | 2016-04-08 | Track traffic oil -free air compressor's pneumatic valve noise restraint system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205578224U true CN205578224U (en) | 2016-09-14 |
Family
ID=56865369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620288185.5U Withdrawn - After Issue CN205578224U (en) | 2016-04-08 | 2016-04-08 | Track traffic oil -free air compressor's pneumatic valve noise restraint system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205578224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736318A (en) * | 2016-04-08 | 2016-07-06 | 石家庄嘉祥精密机械有限公司 | Air valve noise suppression system and method for rail transit oilless air compressor |
-
2016
- 2016-04-08 CN CN201620288185.5U patent/CN205578224U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736318A (en) * | 2016-04-08 | 2016-07-06 | 石家庄嘉祥精密机械有限公司 | Air valve noise suppression system and method for rail transit oilless air compressor |
| CN105736318B (en) * | 2016-04-08 | 2018-04-17 | 石家庄嘉祥精密机械有限公司 | The air valve noise suppression system and suppressing method of track traffic oilless air compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160914 Effective date of abandoning: 20180417 |
|
| AV01 | Patent right actively abandoned |