CN101788075A - solenoid valve - Google Patents
solenoid valve Download PDFInfo
- Publication number
- CN101788075A CN101788075A CN 201010136350 CN201010136350A CN101788075A CN 101788075 A CN101788075 A CN 101788075A CN 201010136350 CN201010136350 CN 201010136350 CN 201010136350 A CN201010136350 A CN 201010136350A CN 101788075 A CN101788075 A CN 101788075A
- Authority
- CN
- China
- Prior art keywords
- slide bar
- positioning
- mounting hole
- positioning body
- flange seat
- 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.)
- Pending
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Abstract
The invention relates to a solenoid valve which comprises a shell, a locating part and a locating slot. A coil former and a solenoid coil are arranged in the locating slot; the end part of the shell is provided with a flange base, and the center of the flange base is provided with a mounting hole; a locating cavity is arranged in the locating part, and a slide bar and a slide bushing are arranged in the locating cavity. One end of the slide bar penetrates through the slide bushing into the locating cavity, and the other end of the slide bar extends into the mounting hole of the flange base; the slide bar and the slide bushing can move relative to the locating part and the flange base. The mounting hole is internally provided with a spring corresponding to the other end provided with slide bar, through a spring base, and the spring is provided with a fixedly connected spool corresponding to the end connected with the spring base. The spool can move in the mounting hole, and the side wall of the spool is provided with a connecting hole. The side wall of the flange base, the flange base is provided with a locating hole corresponding to the side wall provided with the connecting hole. The slide bushing and the locating part form clearance fit, and the clearance between the external wall of the slide bushing and the inner wall of the locating part is 0.35-0.45 mm. The invention has simple structure and can reduce the friction force between the slide bushing and the locating part to be smaller.
Description
Technical field
The present invention relates to a kind of solenoid valve, specifically have the solenoid valve in gap between a kind of sliding sleeve of solenoid valve and positioning body.
Background technique
Solenoid valve is widely used in hydraulic pressure, vacuum, combustion gas transmission and the refrigeration system, and important effect is being brought into play in the automatic control that realizes pipeline.
Solenoid valve comprises housing and convexes with the positioning body at housing center; Be provided with positioning chamber in the positioning body.During solenoid valve work, slide bar and spool are positioned at positioning chamber, and can the motion of relative positioning body.The driving magnetic force that driving slide bar and spool move must be greater than the frictional force between slide bar, sliding sleeve and housing.In actual mechanical process, when electromagnetic coil produces driving force, also can produce a side direction active force perpendicular to driving force.Frictional force between described slide bar, sliding sleeve and positioning body equals the side direction active force and multiply by friction factor between sliding sleeve and positioning body.For can the better driving slide bar and the motion of spool, frictional force be the smaller the better; Therefore just accurately control of the gap between slide bar, sliding sleeve and positioning body; During excesssive gap between sliding sleeve and positioning body, electromagnetic coil can significantly descend to the Driving force of sliding sleeve and slide bar; When sliding sleeve and positioning body gap were too small, there was bigger obstacle in the motion that slides in the positioning chamber, can not accurately finish the working procedure of solenoid valve.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of solenoid valve is provided, it is simple in structure, can make the frictional force between sliding sleeve and positioning body less.
According to technological scheme provided by the invention, described solenoid valve comprises housing, described housing center convexes with positioning body, form locating slot between described positioning body outer wall and inner walls, be provided with coil rack in the described locating slot, be wound with electromagnetic coil on the described coil rack around the housing center; The end of described housing is provided with fixedly connected flange seat, and an end of described flange seat is embedded in the housing, and contacts with the end of positioning body; The center of described flange seat is provided with mounting hole; Be provided with positioning chamber in the positioning body, described positioning chamber is connected with mounting hole; Be provided with slide bar and sliding sleeve in the described positioning chamber; One end of described slide bar passes sliding sleeve, stretches in the positioning chamber, and the other end of described slide bar stretches in the mounting hole of flange seat; Slide bar and sliding sleeve can the relative positioning body and flange seat move; Utilize spring seat that spring is installed corresponding to the other end that slide bar is set in the mounting hole, described spring is provided with fixedly connected spool corresponding to the other end that is connected with spring seat; Described spool can move in mounting hole; The sidewall of spool is provided with attachment hole, and flange seat is provided with positioning hole corresponding to the sidewall that attachment hole is set; Described sliding sleeve and positioning body Spielpassung, the gap between sliding sleeve outer wall and positioning body inwall is 0.35～0.45mm.
Be provided with second seal ring between described flange seat and coil rack.Described flange seat corresponding to the contacted end of positioning body be taper.Described slide bar is provided with end cap corresponding to the end with contiguous spool, and described end cap is spherical.The radius of described end cap is 8～11mm.Described slide bar utilizes second Bearing Installation at flange seat corresponding to the end that is positioned at mounting hole.Described slide bar utilizes clutch shaft bearing to be installed in positioning body corresponding to the end that is positioned at positioning chamber.
Advantage of the present invention: Spielpassung between sliding sleeve and positioning body during the electromagnetic coil energising, can drive the motion of sliding sleeve and slide bar relative positioning body, thereby promote the spool pressure spring; Gap between sliding sleeve outer wall and positioning body inwall is 0.35～0.45mm, the electromagnetism Driving force that electromagnetic coil acts between sliding sleeve and slide bar can significantly not descend, and make the frictional force between sliding sleeve and positioning body less, sliding sleeve and slide bar can move in positioning chamber stably.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in Figure 1: the present invention includes housing 1, slide bar 2, coil rack 3, clutch shaft bearing 4, sliding sleeve 5, first seal ring 6, second seal ring 7, flange seat 8, spool 9, mounting hole 10, spring seat 11, spring 12, positioning hole 13, attachment hole 14, end cap 15, second bearing 16, electromagnetic coil 17, positioning chamber 18, locating slot 19 and positioning body 20.
As shown in Figure 1: convex with positioning body 20 in cup shell body 1, form locating slot 19 between the inwall of the outer wall of described positioning body 20 and housing 1, described locating slot 19 is around the center of housing 1 with positioning body 20.Be provided with positioning chamber 18 in the described positioning body 20.Be provided with coil rack 3 in the locating slot 19, be wound with electromagnetic coil 17 on the coil rack 3.Described cup shell body 1 is provided with fixedly connected flange seat 8 corresponding to open end, and an end of described flange seat 8 is embedded in glass shell body 1, and contacts with the end of positioning body 20; Flange seat 8 corresponding to positioning body 20 contacted ends be taper.3 of described flange seat 8 and coil racks are provided with second seal ring 7; Described flange seat 8 is provided with mounting hole 10 along the central position.Flange seat 8 is corresponding to utilizing spring seat 11 that spring 12 is installed in the mounting hole 10 of setting housing 1 the other end end, and described spring 12 is provided with fixedly connected spool 9 corresponding to the other end that is connected with spring seat 11, and described spool 9 can slide in mounting hole 10.The sidewall of described spool 9 is provided with attachment hole 14; Flange seat 8 has positioning hole 13 corresponding to the sidewall that attachment hole 14 is set, and spool 9 can be isolated being communicated with of positioning hole 13 and 10 of mounting holes; Spool 9 is when pressure spring 12 slides in mounting hole 10, and along with the slip of spool 9 in mounting hole 10, attachment hole 14 can overlap with positioning hole 13, makes mounting hole 10 and external communications.
Be provided with sliding sleeve 5 in the positioning chamber 18 of described positioning body 20, sliding sleeve 5 can slide in positioning chamber 18.Also be provided with slide bar 2 in the described positioning body 20; One end of described slide bar 2 passes sliding sleeve 5, stretches in the positioning chamber 18; Described slide bar 2 utilizes clutch shaft bearing 4 to be installed in the positioning chamber 18 corresponding to the end of stretching into positioning chamber 18; The other end of described slide bar 2 stretches in the mounting hole 10 of flange seat 8; Slide bar 2 utilizes second bearing 16 to be installed in the flange seat 8 corresponding to the end of stretching into mounting hole 10; Described slide bar 2 can relative positioning body 20 and flange seat 8 move.Described sliding sleeve 5 and positioning body 20 Spielpassung, sliding sleeve 5 can slide at the positioning chamber 18 of positioning body 20; Gap between described sliding sleeve 5 outer walls and positioning body 20 inwalls is 0.35～0.45mm.Slide bar 2 is provided with end cap 15 corresponding to the end of stretching in the mounting hole 10, and described end cap 15 is spherical, and the radius of end cap 15 is 8～11mm.Described positioning body 20 is corresponding to being provided with first seal ring 6 of fixedlying connected with flange seat 8 contacted ends, and after coil rack 3 softened, first seal ring 6 still can play seal action.
As shown in Figure 1: during work, with electromagnetic coil 17 energisings.After electromagnetic coil 17 energisings, described slide bar 2 moves with sliding sleeve 5 relative positioning bodies 20 and flange seat 8; Described slide bar 2 moving in mounting hole 10 makes slide bar 2 contact with the end of spool 9; Along with being moved further of slide bar 2, slide bar 2 can pressure spring 12 with spool 9.Along with slide bar 2 and spool 9 pressure springs 12 move in mounting hole 10, the attachment hole 14 on the spool 9 can coincide with the positioning hole 13 on the flange seat 8, makes mounting hole 10 and external communications, finishes the circulation of solenoid valve medium.When electromagnetic coil 17 outage, spool 9 returns to original position under the effect of spring 12, has cut off being communicated with of positioning hole 13 and 14 of attachment holes; Also make simultaneously slide bar 2 and sliding sleeve 5 return to original state, thereby finish the periodic duty process one time.When the gap between described sliding sleeve 5 outer walls and positioning body 20 inwalls was 0.35～0.45mm, the Driving force that electromagnetic coil 17 acts on sliding sleeve 5 and slide bar 2 can significantly not descend, and made the frictional force of 20 of sliding sleeve 5 and positioning bodies less; The electromagnetic force that electromagnetic coil 17 and sliding sleeve are 5 can promote sliding sleeve 5 and steadily move in positioning chamber 18 with slide bar 2, finishes do action of electromagnetic coil preferably.Described slide bar 2 is set to sphere corresponding to the end of contact spool 9, and slide bar 2 forms desirable contact condition with contacting of 9 of spools, and the active force that makes slide bar 2 act on spool 9 is positioned at the center of spool 9 all the time.Spool 9 can steadily move under the effect of slide bar 2, has avoided spool 9 to contact in the moving process of pressure spring 12 when undesirable, spool 9 occurs and moves stuck and abnormal wear phenomenon, prolongs the working life of solenoid valve.
Claims (7)
1. solenoid valve, comprise housing (1), described housing (1) center convexes with positioning body (20), form locating slot (19) between described positioning body (20) outer wall and housing (1) inwall around housing (1) center, be provided with coil rack (3) in the described locating slot (19), be wound with electromagnetic coil (17) on the described coil rack (3); The end of described housing (1) is provided with fixedly connected flange seat (8), and an end of described flange seat (8) is embedded in the housing (1), and contacts with the end of positioning body (20); The center of described flange seat (8) is provided with mounting hole (10); Be provided with positioning chamber (18) in the positioning body (20), described positioning chamber (18) is connected with mounting hole (10); Be provided with slide bar (2) and sliding sleeve (5) in the described positioning chamber (18); One end of described slide bar (2) passes sliding sleeve (5), stretches in the positioning chamber (18), and the other end of described slide bar (2) stretches in the mounting hole (10) of flange seat (8); Slide bar (2) can move with flange seat (8) by relative positioning body (20) with sliding sleeve (5); Utilize spring seat (11) that spring (12) is installed corresponding to the other end that slide bar (2) is set in the mounting hole (10), described spring (12) is provided with fixedly connected spool (9) corresponding to the other end that is connected with spring seat (11); Described spool (9) can move in mounting hole (10); The sidewall of spool (9) is provided with attachment hole (14), and flange seat (8) is provided with positioning hole (13) corresponding to the sidewall that attachment hole (14) is set; It is characterized in that: described sliding sleeve (5) and positioning body (20) Spielpassung, the gap between sliding sleeve (5) outer wall and positioning body (20) inwall is 0.35～0.45mm.
2. solenoid valve according to claim 1 is characterized in that: be provided with second seal ring (7) between described flange seat (8) and coil rack (3).
3. solenoid valve according to claim 1 is characterized in that: described flange seat (8) corresponding to the contacted end of positioning body (20) be taper.
4. solenoid valve according to claim 1 is characterized in that: described slide bar (2) is provided with end cap (15) corresponding to the end with contiguous spool (9), and described end cap (15) is spherical.
5. solenoid valve according to claim 4 is characterized in that: the radius of described end cap (15) is 8～11mm.
6. solenoid valve according to claim 1 is characterized in that: described slide bar (2) utilizes second bearing (16) to be installed in flange seat (8) corresponding to the end that is positioned at mounting hole (10).
7. solenoid valve according to claim 1 is characterized in that: described slide bar (2) utilizes clutch shaft bearing (4) to be installed in positioning body (20) corresponding to the end that is positioned at positioning chamber (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010136350 CN101788075A (en) | 2010-03-30 | 2010-03-30 | solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010136350 CN101788075A (en) | 2010-03-30 | 2010-03-30 | solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101788075A true CN101788075A (en) | 2010-07-28 |
Family
ID=42531402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010136350 Pending CN101788075A (en) | 2010-03-30 | 2010-03-30 | solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101788075A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132177A (en) * | 2014-07-23 | 2014-11-05 | 成都气海机电制造有限公司 | Miniature solenoid valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5687698A (en) * | 1996-08-29 | 1997-11-18 | General Motors Corporation | Exhaust gas recirculation valve |
| JP2000266221A (en) * | 1999-03-15 | 2000-09-26 | Kayaba Ind Co Ltd | Electro-magnetic proportional control valve |
| JP2003042328A (en) * | 2001-07-26 | 2003-02-13 | Aisin Seiki Co Ltd | Solenoid valve |
| CN1588585A (en) * | 2004-07-15 | 2005-03-02 | 浙江大学 | Anti high voltage permanent magnet polarized two-way ratio electromagnet |
| JP2007032783A (en) * | 2005-07-29 | 2007-02-08 | Nachi Fujikoshi Corp | Solenoid valve |
| US20090072174A1 (en) * | 2007-09-14 | 2009-03-19 | Denso Corporation | Solenoid valve |
-
2010
- 2010-03-30 CN CN 201010136350 patent/CN101788075A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5687698A (en) * | 1996-08-29 | 1997-11-18 | General Motors Corporation | Exhaust gas recirculation valve |
| JP2000266221A (en) * | 1999-03-15 | 2000-09-26 | Kayaba Ind Co Ltd | Electro-magnetic proportional control valve |
| JP2003042328A (en) * | 2001-07-26 | 2003-02-13 | Aisin Seiki Co Ltd | Solenoid valve |
| CN1588585A (en) * | 2004-07-15 | 2005-03-02 | 浙江大学 | Anti high voltage permanent magnet polarized two-way ratio electromagnet |
| JP2007032783A (en) * | 2005-07-29 | 2007-02-08 | Nachi Fujikoshi Corp | Solenoid valve |
| US20090072174A1 (en) * | 2007-09-14 | 2009-03-19 | Denso Corporation | Solenoid valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132177A (en) * | 2014-07-23 | 2014-11-05 | 成都气海机电制造有限公司 | Miniature solenoid valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20100728 |