CN105042177A - Gas injection valve with buffer mechanism - Google Patents
Gas injection valve with buffer mechanism Download PDFInfo
- Publication number
- CN105042177A CN105042177A CN201510595853.9A CN201510595853A CN105042177A CN 105042177 A CN105042177 A CN 105042177A CN 201510595853 A CN201510595853 A CN 201510595853A CN 105042177 A CN105042177 A CN 105042177A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve block
- damping mechanism
- spool
- gas spray
- 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.)
- Granted
Links
- 239000000872 buffer Substances 0.000 title claims abstract description 33
- 230000007246 mechanism Effects 0.000 title claims abstract description 24
- 238000002347 injection Methods 0.000 title abstract description 8
- 239000007924 injection Substances 0.000 title abstract description 8
- 238000013016 damping Methods 0.000 claims abstract description 39
- 239000007921 spray Substances 0.000 claims description 25
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 9
- 230000004044 response Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 239000006173 Good's buffer Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000012556 adjustment buffer Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013017 mechanical damping Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
Abstract
The invention, which belongs to the technical field of the gas injection valve, especially relates to a gas injection valve with a buffer mechanism. A buffer mechanism is arranged at the front side of a valve body and contains a housing, a front end cover, and a rear end cover; and the housing, the front end cover, and the rear end cover are fixed at the front side of the valve body by fasteners. A through hole is formed in the rear end cover; and a head of a valve rod part passes through the through hole and extends into the housing. A buffer block is arranged inside the housing; and a buffer spring is clamped and compressed between the buffer block and the front end cover. When the gas injection valve is closed, the buffer effect is good; and when the valve is opened, no damping occurs and the response speed is fast.
Description
Technical field
The invention belongs to gas spray valve technical field, particularly relate to a kind of gas spray valve with damping mechanism.
Background technique
Adopt the high speed electromagnetic gas spray valve of Electromagnetic Drive can adapt to less traffic requirement and lower gas pressure condition, Chinese invention patent CN104197027A integrated type double valve gas spray valve and assembly method thereof, disclose the gas spray valve that the applicant proposes, the requirement of large discharge high-speed response can be met, but the valve block of valve and valve seat direct collision, the life-span of valve is affected.
Chinese utility model patent CN204358131U discloses a kind of gas spray valve with damping mechanism that the applicant proposes, the later stage that this injection valve valve block is closed, the annular boss of valve rod is inserted in the dashpot of valve stem casing tube end, by the aeroseal compression in dashpot, pressurized air in dashpot can clash into valve block the effect that valve body plays buffering, but due to the compressibility of gas, the cushioning effect of this injection valve is weak, when this external spool is opened, there is damping function in the gas buffer chamber closed to spool, affects the speed of response of this injection valve.
Summary of the invention
In view of the above defect in prior art, technical problem to be solved by this invention is to provide a kind of gas spray valve with damping mechanism, good buffer effect when this gas spray valve is closed, undamped, fast response time during unlatching.
For solving the problems of the technologies described above, technological scheme of the present invention is:
With a gas spray valve for damping mechanism, comprising: valve body, described valve body is provided with suction port and air outlet, is provided with valve block seat and valve core housing in described valve body, is provided with gas-entered passageway between described suction port and described valve block seat; Spool, described spool comprises valve stem that order arranges, valve block portion and spool afterbody, described valve block portion and described valve block seat suitable, described valve stem is slidably mounted in the mounting hole of described valve core housing; Return spring, described return spring clamps between the head and an end face of described valve body of described valve stem; Moving armature and electromagnetic coil, described moving armature is fixedly installed in described spool afterbody, and described electromagnetic coil is installed on the rearward end of described valve body; Damping mechanism, described damping mechanism comprises a housing, a front cover and a rear end cover, described housing, described front cover and described rear end cover are fixed on the front portion of described valve body by fastening piece, described rear end cover is provided with a through hole, when described spool is closed, the head of described valve stem to stretch in described housing through described through hole and fits with buffer stopper, and described buffer stopper is movably set in described housing; Damping spring, described damping spring clamps between described buffer stopper and described front cover.
Improve as one, described buffer stopper is provided with a counterbore, and described damping spring part is arranged in described counterbore.
Improve as one, the circumferential surface of described valve stem is provided with the breach or groove that extend vertically, forms channel of chip removal between the inner peripheral surface of the breach of described valve stem or groove and described valve core housing mounting hole.
Improve as one, described breach or groove have two or more, accordingly, form two or more channel of chip removal between the inner peripheral surface of the breach of described valve stem or groove and described valve core housing mounting hole.
Improve as one, described valve stem comprises the enlarged diameter section being positioned at two ends and the reduced diameter section being positioned at centre, and described breach or groove are arranged on described enlarged diameter section.
Improve as one, described breach is formed with the circumferential surface of valve stem described in a flush cut.
Improve as one, described valve block portion comprises the front valve block and rear valve block that coaxially arrange with described valve stem, is provided with connecting rod between described front valve block and described rear valve block, and described air outlet is between described front valve block and described rear valve block.
Improve as one, described valve block seat and described valve body are set to one.
After adopting technique scheme, beneficial effect of the present invention is:
Because the present invention is provided with mechanical damping mechanism, in the closing process of spool, under the effect of return spring, spool moves to closing direction at a high speed, when valve block is close to valve block seat, the head of valve stem first knocks buffer stopper, kinergety major part is transferred in buffer stopper and damping spring, then spool is slowly taken a seat, alleviate the gouging abrasion of valve block and valve block seat when spool is closed, after valve land, buffer stopper is under the effect of damping spring, be returned to original position, and fit with the head of valve stem, undamped effect when spool is opened again, response is fast.
Because described buffer stopper is provided with a counterbore, described damping spring part is arranged in described counterbore, can limit the relative position of damping spring between front cover and buffer stopper, avoid spring offset.
Circumferential surface due to described valve stem is provided with the breach or groove that extend vertically, channel of chip removal is formed between the inner peripheral surface of the breach of described valve stem or groove and described valve core housing mounting hole, the tiny chip slippage that the relative movement of spool and valve core housing produces between rubbing surface is after channel of chip removal, can discharge with the relative movement of spool and valve core housing or be blown out by charge air flow, under dry conditions, avoid causing the wearing and tearing between spool and valve core housing or clamping stagnation.
Because described valve stem comprises the enlarged diameter section being positioned at two ends and the reduced diameter section being positioned at centre, described breach or groove are arranged on described enlarged diameter section, can reduce the friction area between valve stem and valve core housing.
Because described valve block portion adopts double valve sheet structure, the eject request of large discharge gas can be met.
Accompanying drawing explanation
Fig. 1 is the longitudinal construction sectional view of gas spray valve first embodiment of the present invention;
Fig. 2 is the structural representation of spool in Fig. 1;
Fig. 3 is the structural representation that the valve stem of spool in Fig. 1 coordinates with valve core housing;
Fig. 4 is the structural representation that the valve stem of spool in gas spray valve second embodiment of the present invention coordinates with valve core housing;
In figure, 1-valve body, 13-suction port, 14-air outlet, 15-valve block seat, 21-valve stem, 211-valve rod head, valve block before 22-, valve block after 23-, 24-connecting rod, 25a-breach, 25b-groove, 26-spool afterbody, 3-valve core housing, 4-moving armature, 5-electromagnetic coil, 6-front cover, 7-buffer stopper, 8-damping spring, 9-rear end cover, 10-return spring, 18-housing.
Embodiment
Clearly understand to make object of the present invention, technological scheme and advantage, below in conjunction with Figure of description and embodiment, the present invention is further elaborated, is to be understood that, specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
First embodiment
Composition graphs 1 and Fig. 2 jointly shown in, a kind of gas spray valve with damping mechanism, the body of valve body 1 is provided with suction port 13 and air outlet 14, valve block seat 15 and valve core housing 3 is provided with in valve body 1, valve block seat 15 is installed on valve body 1, or valve block seat 15 and valve body 1 are set to one (when split manufactures, valve block seat 15 can adopt more wear-resisting material to make), are provided with gas-entered passageway between suction port 13 and valve block seat 15.Be provided with slidably spool in the mounting hole of valve core housing 3, spool comprises valve stem 21 that order arranges, valve block portion and spool afterbody 26, valve block portion and valve block seat 15 suitable.For convenience of explanation, the position at valve stem 21 place is defined as " front to ", and the position at spool afterbody 26 place is defined as " rear to ".
Valve block portion comprises and coaxially with valve stem 21 arranges front valve block 22 and rear valve block 23 two valve blocks, connecting rod 24 is provided with between front valve block 22 and rear valve block 23, air outlet 14 is between front valve block 22 and rear valve block 23, front valve block 22 and rear valve block 23 be a corresponding gas-entered passageway respectively, can meet large discharge gas eject request.Certainly, if do not consider the requirement of flow, also single valve chip architecture can be adopted.
Be clamped with return spring 10 between the head of valve stem and an end face of valve body 1, spool afterbody 26 is installed with moving armature 4, and the rearward end of valve body 1 is provided with electromagnetic coil 5.
An emphasis of the present invention is provided with damping mechanism, this damping mechanism comprises a housing 18, front cover 6 and a rear end cover 9, housing 18, front cover 6 and rear end cover 9 are fixed on the front portion of valve body 1 by fastening piece (not shown), rear end cover 9 is provided with a through hole, the head of valve stem 21 stretches in housing 18 through through hole, be provided with buffer stopper 7 in housing 18, between buffer stopper 7 and front cover 6, be clamped with damping spring 8.Buffer stopper 7 is provided with a counterbore, and damping spring 8 part is arranged in counterbore, can limit the relative position of damping spring 8 between front cover 6 and buffer stopper 7, avoids damping spring 8 to be shifted.
For gas spray valve, the relative movement of spool and valve core housing 3 is in unlubricated dry condition, the easy to wear and clamping stagnation of the surface of contact of spool and valve core housing 3.As Fig. 2 and Fig. 3 jointly shown in, the circumferential surface of valve stem 21 is provided with the breach 25a extended vertically, channel of chip removal is formed between the breach 25a of valve stem 21 and the inner peripheral surface of valve core housing 3 mounting hole, the tiny chip slippage produced between rubbing surface is after channel of chip removal, can discharge with the relative movement of spool and valve core housing 3 or be blown out by charge air flow, avoid causing the wearing and tearing between spool and valve core housing 3 or clamping stagnation, improve reliability and the working life of valve.
Breach 25a is formed with the circumferential surface of a flush cut valve stem 21, and the structure of this kind of spool is simple, and debris removal is effective.Breach 25a is provided with two or more, accordingly, two or more channel of chip removal is formed between the breach 25a of valve stem 21 and the inner peripheral surface of valve core housing 3 mounting hole, chip tiny between spool and valve core housing 3 is discharged by two or more channel of chip removal, improves chip removal efficiency.Valve stem 21 comprises the enlarged diameter section being positioned at two ends and the reduced diameter section being positioned at centre, and breach 25a is arranged on enlarged diameter section, can reduce the friction area between valve stem 21 and valve core housing 3.
The working principle of above-mentioned gas injection valve is:
Electromagnetic coil 5 is energized, and attract moving armature 4 to be with movable valve plug to move, valve block leaves valve block seat, and gas arrives air outlet 14 from suction port 13.
Electromagnetic coil 5 power-off, under the effect of return spring 10, spool is at a high speed to closing direction motion, and when valve block is close to valve block seat, valve rod head 211 first knocks buffer stopper 7, and kinergety is passed to buffer stopper, and then spool is slowly taken a seat.Buffer stopper 7 and damping spring 8 bear most of motion energy of spool jointly, and move, and buffer stopper 7 moves after suitable distance, pile up with front cover 6, motion stops, and buffer stopper 7, under damping spring 8 acts on, is got back to initial position and fits with valve rod head 211.
By changing thickness or the increase and decrease adjustment pad of rear end cover 9, the collision moment of regulating valve club head 211 and buffer stopper, namely when spool and buffer stopper 7 butt, the distance of valve block and valve block seat, thus adjustment buffer distance.
Due to the wearing and tearing of valve block, the move distance of spool can change gradually, the emitted dose of gas spray valve also changes immediately, in order to the stability of guaranteed flow, in air outlet 14, place arranges measuring hole, and valid circulation area when its circulation area is less than spool standard-sized sheet between valve block and valve block seat, makes the restriction of the flow of gas spray valve main metered hole circulation area, maintenance is stablized constant, and the flow conformity between each gas spray valve is guaranteed.
Second embodiment
As shown in Figure 4, its structure is substantially identical with the first embodiment, and its difference is, the circumferential surface of valve stem 21 is provided with the groove 25b that extends vertically in order to replace breach 25a, and its effect is substantially identical.
Above embodiment is preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention every, and any amendment done, equivalent replacement, improvement etc., all should be included in protection scope of the present invention.
Claims (8)
1. the gas spray valve with damping mechanism, comprising:
Valve body, described valve body is provided with suction port and air outlet, is provided with valve block seat and valve core housing in described valve body, is provided with gas-entered passageway between described suction port and described valve block seat;
Spool, described spool comprises valve stem that order arranges, valve block portion and spool afterbody, described valve block portion and described valve block seat suitable, described valve stem is slidably mounted in the mounting hole of described valve core housing;
Return spring, described return spring clamps between the head and an end face of described valve body of described valve stem;
Moving armature and electromagnetic coil, described moving armature is fixedly installed in described spool afterbody, and described electromagnetic coil is installed on the rearward end of described valve body;
Damping mechanism; It is characterized in that, described damping mechanism comprises,
Housing, a front cover and a rear end cover, described housing, described front cover and described rear end cover are fixed on the front portion of described valve body by fastening piece, described rear end cover is provided with a through hole, when described spool is closed, the head of described valve stem to stretch in described housing through described through hole and fits with buffer stopper, and described buffer stopper is movably set in described housing;
Damping spring, described damping spring clamps between described buffer stopper and described front cover.
2. the gas spray valve of band damping mechanism as claimed in claim 1, it is characterized in that, described buffer stopper is provided with a counterbore, and described damping spring part is arranged in described counterbore.
3. the gas spray valve of band damping mechanism as claimed in claim 1 or 2, it is characterized in that, the circumferential surface of described valve stem is provided with the breach or groove that extend vertically, forms channel of chip removal between the inner peripheral surface of the breach of described valve stem or groove and described valve core housing mounting hole.
4. the gas spray valve of band damping mechanism as claimed in claim 3, it is characterized in that, described breach or groove have two or more, accordingly, form two or more channel of chip removal between the inner peripheral surface of the breach of described valve stem or groove and described valve core housing mounting hole.
5. the gas spray valve of band damping mechanism as claimed in claim 4, it is characterized in that, described breach is formed with the circumferential surface of valve stem described in a flush cut.
6. the gas spray valve of band damping mechanism as claimed in claim 5, is characterized in that, described valve stem comprises the enlarged diameter section being positioned at two ends and the reduced diameter section being positioned at centre, and described breach or groove are arranged on described enlarged diameter section.
7. the gas spray valve of band damping mechanism as claimed in claim 6, it is characterized in that, described valve block portion comprises the front valve block and rear valve block that coaxially arrange with described valve stem, be provided with connecting rod between described front valve block and described rear valve block, described air outlet is between described front valve block and described rear valve block.
8. the gas spray valve of band damping mechanism as claimed in claim 1, it is characterized in that, described valve block seat and described valve body are set to one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510595853.9A CN105042177B (en) | 2015-09-17 | 2015-09-17 | Gas spray valve with buffer gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510595853.9A CN105042177B (en) | 2015-09-17 | 2015-09-17 | Gas spray valve with buffer gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105042177A true CN105042177A (en) | 2015-11-11 |
| CN105042177B CN105042177B (en) | 2016-06-08 |
Family
ID=54448977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510595853.9A Active CN105042177B (en) | 2015-09-17 | 2015-09-17 | Gas spray valve with buffer gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105042177B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972230A (en) * | 2016-07-01 | 2016-09-28 | 潍坊力创电子科技有限公司 | Electromagnetism-driven gas injection valve provided with buffer mechanism |
| CN111379877A (en) * | 2018-12-28 | 2020-07-07 | Smc株式会社 | Low noise door valve |
| CN115507295A (en) * | 2022-11-01 | 2022-12-23 | 安徽钟南人防工程防护设备有限公司 | Emergency oxygen supply device capable of automatically filling medicament |
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|---|---|---|---|---|
| JP2000240843A (en) * | 1999-02-24 | 2000-09-08 | Kubota Corp | Mechanical link type dual high-temperature butterfly valve |
| WO2009024250A1 (en) * | 2007-08-17 | 2009-02-26 | Ritag Ritterhuder Armaturen Gmbh & Co. Armaturenwerk Kg | Device for locking the through flow of fluid media in pipelines, tubes, or the like, particularly a check valve |
| CN201265694Y (en) * | 2008-09-11 | 2009-07-01 | 江苏星A包装机械集团有限公司 | Pneumatic liquid feeding valve |
| CN101929571A (en) * | 2009-06-21 | 2010-12-29 | 陆平 | Slow closure back pressure valve |
| CN102128301A (en) * | 2010-12-09 | 2011-07-20 | 潍坊威度电子科技有限公司 | Executive device of electronic control valve |
| CN103256393A (en) * | 2013-04-28 | 2013-08-21 | 潍坊威度电子科技有限公司 | Pressure-balanced type gas jet digital valve |
| CN104482231A (en) * | 2014-12-28 | 2015-04-01 | 潍坊力创电子科技有限公司 | Gas injection valve with buffer mechanism |
| CN204942748U (en) * | 2015-09-17 | 2016-01-06 | 潍坊力创电子科技有限公司 | With the gas spray valve of damping mechanism |
-
2015
- 2015-09-17 CN CN201510595853.9A patent/CN105042177B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000240843A (en) * | 1999-02-24 | 2000-09-08 | Kubota Corp | Mechanical link type dual high-temperature butterfly valve |
| WO2009024250A1 (en) * | 2007-08-17 | 2009-02-26 | Ritag Ritterhuder Armaturen Gmbh & Co. Armaturenwerk Kg | Device for locking the through flow of fluid media in pipelines, tubes, or the like, particularly a check valve |
| CN201265694Y (en) * | 2008-09-11 | 2009-07-01 | 江苏星A包装机械集团有限公司 | Pneumatic liquid feeding valve |
| CN101929571A (en) * | 2009-06-21 | 2010-12-29 | 陆平 | Slow closure back pressure valve |
| CN102128301A (en) * | 2010-12-09 | 2011-07-20 | 潍坊威度电子科技有限公司 | Executive device of electronic control valve |
| CN103256393A (en) * | 2013-04-28 | 2013-08-21 | 潍坊威度电子科技有限公司 | Pressure-balanced type gas jet digital valve |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972230A (en) * | 2016-07-01 | 2016-09-28 | 潍坊力创电子科技有限公司 | Electromagnetism-driven gas injection valve provided with buffer mechanism |
| CN105972230B (en) * | 2016-07-01 | 2018-02-23 | 潍坊力创电子科技有限公司 | The gas spray valve with buffer gear of electromagnetic drive |
| CN111379877A (en) * | 2018-12-28 | 2020-07-07 | Smc株式会社 | Low noise door valve |
| CN111379877B (en) * | 2018-12-28 | 2024-02-27 | Smc株式会社 | Low noise gate valve |
| CN115507295A (en) * | 2022-11-01 | 2022-12-23 | 安徽钟南人防工程防护设备有限公司 | Emergency oxygen supply device capable of automatically filling medicament |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105042177B (en) | 2016-06-08 |
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| CB03 | Change of inventor or designer information |
Inventor after: Wang Xiuqiang Inventor after: Wang Lifeng Inventor after: Wu Beibei Inventor after: Mou Dawei Inventor before: Wang Xiuqiang Inventor before: Wang Lifeng |
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