CN202349303U - One-way exhaust valve for air compressor - Google Patents
One-way exhaust valve for air compressor Download PDFInfo
- Publication number
- CN202349303U CN202349303U CN2011204972803U CN201120497280U CN202349303U CN 202349303 U CN202349303 U CN 202349303U CN 2011204972803 U CN2011204972803 U CN 2011204972803U CN 201120497280 U CN201120497280 U CN 201120497280U CN 202349303 U CN202349303 U CN 202349303U
- Authority
- CN
- China
- Prior art keywords
- valve
- spring
- air compressor
- valve body
- spool
- 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
Links
Images
Landscapes
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model discloses a one-way exhaust valve for an air compressor, which is suitable for the air compressor with a rotating speed which is more than 1000 r/min. The one-way exhaust valve for the air compressor comprises a valve body, a valve base, a sealing ring, a valve core and a spring, wherein an air inlet and an air outlet are arranged on the valve body; one end of the valve base is fixedly connected in the valve body through threads; the valve core is movably mounted in a cavity of the valve base; the left end of the spring is fixedly arranged in a groove hole of the valve core, and the right end of the spring is fixedly arranged in a groove hole of the valve base; the sealing ring is arranged on an adhering face between the valve body and the valve base; the wire diameter size of the spring is 1.8 mm, the pitch diameter size of the spring is 22 mm, the number of active turns of the spring is 6.5 turns, and the rigidity coefficient of the spring is 1.536 N/mm; and the mass of the valve core is 0.071 kg. With the adoption of the technical schemes of the utility model, the reciprocated oscillation amplitude of the valve core in the one-way valve due to airflow disturbance can be effectively prevented from being overlarge, so as to avoid a resonance area. Therefore, the valve core is prevented from abnormal phenomena of curling, cracking, breaking and the like; and the operation quality of the air compressor can be ensured.
Description
(1) technical field:
The utility model relates to outlet valve, and especially relating to a kind of is the one-way exhaust valve that uses on the 1000r/min air compressor at engine speed.
(2) background technique:
One-way valve be a kind of on air compressor widely used stand-alone assembly; Its working principle receives very little spring elastic force just for the spool original state; Make that valve port contacts on spool front end and the valve body, to guarantee that gas is not back in the air compressor air pipe in the gas holder.After air compressor starts, the inflation of just in gas holder, progressively boosting, so gas force is pushed initial spring force and frictional force open, valve port is progressively opened, to adapt to the pressure surge of piston type air compressor.After the shutdown, air pipe is all done emptying and is handled, and pressure descends rapidly, and has the gas of pressure also to be delivered in the spring-loaded chamber according to Pascal's law in the gas holder.The spool front-end face is closed valve port rapidly together with spring force by a bigger difference force, accomplishes the sealing of certain pressure gas in the gas holder.Because one-way valve generally all has specialized factory directly to supply; And the one-way valve of a certain model all has an engine speed that matches; Newly-designed air compressor often adopts the raising rotating speed to accomplish when improving efficiency; So in use, abnormalities such as spool is curl, fracture, breakage might occur, have a strong impact on the ride quality of air compressor.
(3), summary of the invention:
The purpose of the utility model is to provide a kind of one-way exhaust valve of air compressor; This one-way exhaust valve is fixedly mounted on the suction port end that engine speed is a gas holder on the 1000r/min air compressor; It can effectively avoid the one-way exhaust valve inner spool excessive because of the amplitude that flow perturbation vibrates back and forth; Avoid spool early damage to occur, guaranteed the ride quality of air compressor.
For achieving the above object; The one-way exhaust valve of a kind of air compressor of the utility model; Comprise valve body, valve seat, seal ring, spool, spring, valve body is provided with suction port and air outlet, is provided with the admission line and the exhaust duct that are connected with suction port and air outlet in the valve body; It is characterized in that: an end of valve seat is fixedly connected in the valve body through screw thread, and spool is movably arranged in the valve seat cavity and with the inwall of valve seat and closely contacts; The left end of said spring fixedly is located in the slotted eye of spool, and right-hand member is fixed in the slotted eye of valve seat, and the faying surface between valve body and valve seat is provided with seal ring.
The silk footpath size 1.8mm of said spring, middle footpath size 22mm, number of active coils 6.5 circles, stiffness coefficient 1.536N/mm, spool quality 0.071kg.
In technique scheme; Because an end of valve seat is fixedly connected in the valve body through screw thread; Spool is movably arranged in the valve seat cavity; The left end of spring fixedly is located in the slotted eye of spool; Right-hand member is fixed in the slotted eye of valve seat, and the faying surface between valve body and valve seat is provided with seal ring, the silk footpath size 1.8mm of spring; Middle footpath size 22mm; Number of active coils 6.5 circles, stiffness coefficient 1.536N/mm, spool quality 0.071kg; To rotating speed is the 1000r/min air compressor; First three rank of air-flow excitation frequency are 17HZ, 33HZ, 50HZ, and its interval of resonance is 13.6HZ-20.4HZ, 26.4HZ-39.6HZ; 40HZ-60HZ; According to air-flow excitation frequency in the exhaust duct be:
the one-way valve internal structure natural frequency that can be considered the single-degree-of-freedom undamped-free vibration be: the stiffness coefficient of
spring is to calculate according to formula
, adopts the technological scheme of the utility model, and the natural frequency of the inner single-degree-of-freedom undamped-free vibration of its one-way valve is 23HZ; So just avoid one, the second order interval of resonance; Can effectively avoid the one-way valve inner spool excessive, thereby avoid abnormalities such as the spool appearance is curl, fracture, breakage, guarantee the ride quality of air compressor because of the amplitude that flow perturbation vibrates back and forth.
(4), description of drawings:
Fig. 1 is the structural representation of the one-way exhaust valve of a kind of air compressor of the utility model.
(5), embodiment:
Below in conjunction with accompanying drawing the one-way exhaust valve of a kind of air compressor of the utility model is done further explain.
Visible by Fig. 1; The one-way exhaust valve of a kind of air compressor of present embodiment comprises valve body 1, valve seat 2, seal ring 3, spool 4, spring 5, and valve body 1 is provided with suction port 6 and air outlet 7; Be provided with the admission line and the exhaust duct that are connected with suction port and air outlet in the valve body; One end of valve seat 2 is fixedly connected in the valve body 1 through screw thread, and spool 4 is movably arranged in valve seat 2 cavitys and with the inwall of valve seat 2 and closely contacts, and the left end of spring 5 fixedly is located in the slotted eye of spool 4; Right-hand member is fixed in the slotted eye of valve seat 2, and the faying surface between valve body 1 and valve seat 2 is provided with seal ring 3.According to air-flow excitation frequency in the exhaust duct be:
(n is a compressor rotary speed, and m is the simple harmonic quantity order, and i changes a job to make suction and discharge number of times in the process), the natural frequency that the one-way valve internal structure can be considered the single-degree-of-freedom undamped-free vibration is:
(k is the stiffness coefficient of spring, and m is the quality of spool) generally all requires f on the engineering
o＜0.8f
cOr f
o＞1.2f
c, to avoid forming resonance.In the present embodiment, the silk footpath size 1.8mm of spring, middle footpath size 22mm; Number of active coils 6.5 circles, stiffness coefficient 1.536N/mm, spool quality 0.071kg; Calculate according to
; The natural frequency that the one-way valve internal structure can be considered the single-degree-of-freedom undamped-free vibration is 23HZ, and is the 1000r/min air compressor to rotating speed, and first three rank of air-flow excitation frequency are 17HZ, 33HZ, 50HZ; Its interval of resonance is 13.6HZ-20.4HZ; 26.4HZ-39.6HZ 40HZ-60HZ is that 23HZ is outside the 13.6HZ-20.4HZ at interval of resonance because the one-way valve internal structure can be considered the natural frequency of single-degree-of-freedom undamped-free vibration; So just avoid one, the second order interval of resonance; Also avoided the one-way valve inner spool excessive effectively, thereby avoided abnormalities such as the spool appearance is curl, fracture, breakage, guaranteed the ride quality of air compressor because of the amplitude that flow perturbation vibrates back and forth.
In the present embodiment, one-way exhaust valve all is contained in the suction port end of gas holder, and the front end of spool 4 is generally all made bag fluorine glue and handled, so that bear the pressurized gas of higher temperature.The groundwork principle is: spool 4 original states receive the first elastic force of a very little spring 5, make that the valve ear contacts on spool 4 front ends and the valve body 1, to guarantee that gas is not back in the air compressor air pipe in the gas holder.After air compressor starts, the inflation of just in gas holder, progressively boosting, so gas force is pushed initial spring force and frictional force open, valve port is progressively opened, to adapt to the pressure surge of piston type air compressor.After the shutdown, air pipe is all done emptying and is handled, and pressure descends rapidly, and has the gas of pressure also to be delivered in the spring-loaded chamber according to Pascal's law in the gas holder.Spool 4 front-end faces are closed valve port rapidly together with spring force by a bigger difference force, accomplish the sealing of certain pressure gas in the gas holder.
Claims (2)
1. the one-way exhaust valve of an air compressor; Comprise valve body, valve seat, seal ring, spool, spring; Valve body is provided with suction port and air outlet, is provided with the admission line and the exhaust duct that are connected with suction port and air outlet in the valve body, it is characterized in that: an end of valve seat is fixedly connected in the valve body through screw thread; Spool is movably arranged in the valve seat cavity and with the inwall of valve seat and closely contacts; The left end of said spring fixedly is located in the slotted eye of spool, and right-hand member is fixed in the slotted eye of valve seat, and the faying surface between valve body and valve seat is provided with seal ring.
2. the one-way exhaust valve of a kind of air compressor according to claim 1 is characterized in that: the silk footpath size 1.8mm of said spring, middle footpath size 22mm, number of active coils 6.5 circles, stiffness coefficient 1.536N/mm, spool quality 0.071kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204972803U CN202349303U (en) | 2011-12-02 | 2011-12-02 | One-way exhaust valve for air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204972803U CN202349303U (en) | 2011-12-02 | 2011-12-02 | One-way exhaust valve for air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202349303U true CN202349303U (en) | 2012-07-25 |
Family
ID=46538310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204972803U Expired - Fee Related CN202349303U (en) | 2011-12-02 | 2011-12-02 | One-way exhaust valve for air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202349303U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105727405A (en) * | 2016-01-30 | 2016-07-06 | 成都康拓兴业科技有限责任公司 | Airborne molecular sieve oxygen system |
-
2011
- 2011-12-02 CN CN2011204972803U patent/CN202349303U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105727405A (en) * | 2016-01-30 | 2016-07-06 | 成都康拓兴业科技有限责任公司 | Airborne molecular sieve oxygen system |
| CN105727405B (en) * | 2016-01-30 | 2018-10-23 | 成都康拓兴业科技有限责任公司 | airborne molecular sieve oxygen system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208564918U (en) | A kind of surge tank and compresser cylinder air inlet system and exhaust system | |
| CN103452853A (en) | Oil injection device of scroll air compressor | |
| CN202349303U (en) | One-way exhaust valve for air compressor | |
| CN201246247Y (en) | Air filter of automobile engine | |
| CN206669836U (en) | Smoke exhaust ventilator with automatic cover-turning removable panel | |
| CN209483961U (en) | A kind of gas-cooker pressure stabilizing valve arrangement | |
| CN207598502U (en) | A kind of Spiralism type gas compression assembly | |
| CN202252753U (en) | Gear type engine oil pump | |
| CN203879745U (en) | Structure for decreasing oil-carrying amount of totally-closed rotor compressor | |
| CN207161178U (en) | Disk-type silencer | |
| CN205111593U (en) | Grinder with dust collector | |
| CN204851651U (en) | Horizontal compressor and flange assembly admits air thereof | |
| CN205685706U (en) | Vacuum extractor for vacuum setting machine | |
| CN204877837U (en) | Improvement type air compressor | |
| CN207315655U (en) | A kind of three rotary vane type compressor of three chamber | |
| CN206274739U (en) | Blast compensation device and the blower fan with blast compensation device | |
| CN205605518U (en) | Gas circuit structure of piston rod of cylinder action is rejected in control | |
| CN104088737A (en) | Automobile and engine gas inlet system thereof | |
| CN106091330B (en) | A kind of air-conditioner host equipment of vibration and noise reducing | |
| CN204827857U (en) | Refrigerator muffler | |
| CN105600608B (en) | Automatic winding head-producing device of full-automatic false twisting texturing machine | |
| CN203463292U (en) | Oil injection device for horizontal vortex type air compressor | |
| CN203835583U (en) | Double air intake duct of down-the-hole drill | |
| CN203362517U (en) | Double-cavity air compressor | |
| CN204140410U (en) | A kind of slide valve pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20171202 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |