CN102937209A - Transmission structure of satellite valve - Google Patents
Transmission structure of satellite valve Download PDFInfo
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- CN102937209A CN102937209A CN2012104311250A CN201210431125A CN102937209A CN 102937209 A CN102937209 A CN 102937209A CN 2012104311250 A CN2012104311250 A CN 2012104311250A CN 201210431125 A CN201210431125 A CN 201210431125A CN 102937209 A CN102937209 A CN 102937209A
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- valve
- steel ball
- stem mut
- satellite
- drive mechanism
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Abstract
The invention discloses a transmission structure of a satellite valve. The transmission structure comprises a valve rod (1), small steel balls (2), a large steel ball (4), a bonnet (5) and a valve-rod nut (6). A spherical concave hole is arranged on the end face of the valve rod (1), and the large steel ball (4) is arranged in the concave hole; and annular grooves are opened at positions of the inner wall of the valve-rod nut (6) corresponding to the outer wall of valve rod (1) respectively, and the small steel balls (2) are arranged in the annular grooves. According to the transmission structure, the large steel ball is arranged between the end face of the valve rod and the valve-rod nut, so that frictional resistance and abrasion can be reduced when the valve-rod nut pushes the valve rod to move forwards; the small steel balls are arranged in the circumferential annular grooves of the valve rod and the valve-rod nut, so that frictional resistance and abrasion can be reduced when the valve-rod nut draws the valve rod to move backwards; and accordingly, the transmission structure has the advantages of high cleanliness and small frictional resistance.
Description
Technical field
The invention belongs to satellite drive technology field, particularly the satellite valve drive mechanism of a kind of high-cleanness, high, friction resistance.
Background technique
In satellite propulsion system, fifth wheel may cause the faults such as valve seal inefficacy or Satellite Engine operation irregularity, so in the satellite valve, requires drive mechanism should have higher cleanliness.
At present, the drive mechanism in the satellite valve generally is comprised of parts such as valve gap, Stem Mut, valve rods.Have the advantages such as intensity is high, density is little, anti-propellant agent corrosion due to titanium alloy, all requiring the material of housing parts (as valve body, valve gap) in general satellite valve is titanium alloy, but the shortcoming of titanium alloy is to wear no resistance, and surface friction drag is large.Therefore in existing satellite valve, the titanium alloy screw thread in valve gap, repeatedly in transmission process, easily producing wearing and tearing, form fifth wheel, and surface friction drag is large.
The effect of Stem Mut is that the band ovable valve stem moves forwards or backwards.In the satellite valve, because valve rod contacts with propellant agent, require its anti-propellant agent corrosion.Therefore its material selection scope is restricted, and generally can only select 1Cr18Ni9Ti and titanium alloy etc materials, and its hardness is lower, and wear resistance is poor.Therefore, in existing satellite valve drive mechanism, between valve rod and Stem Mut,, there is the shortcoming that produces fifth wheel because of wearing and tearing in directly contact.
The valve drive mechanism of other field, can't meet the requirement of satellite valve to aspects such as material requirements, cleanlinesss at material.Such as, the hand stop valve in aerospace industry standard QJ2262 is applicable to ground installation and the testing installation of astrovehicle, and the 2Cr13 of its valve gap for quenching, can not meet the requirement of satellite valve, if make titanium alloy material into, can produce again not anti abrasive shortcoming.Be sliding friction between its valve rod and Stem Mut, have the shortcoming that produces fifth wheel because of wearing and tearing.
Therefore, for the above shortcoming of satellite valve drive mechanism existence, need the satellite valve drive mechanism of a kind of high-cleanness, high of development, friction resistance.
Summary of the invention
Technology of the present invention is dealt with problems and is: overcome the deficiencies in the prior art, the satellite valve drive mechanism of a kind of high-cleanness, high, friction resistance is provided.
Technical solution of the present invention is: a kind of satellite valve drive mechanism comprises valve rod, little steel ball, large steel ball, valve gap and Stem Mut; Have spherical shrinkage pool in the valve rod end, large steel ball is positioned at shrinkage pool; At the inwall of Stem Mut and the outer wall corresponding position of valve rod, have annular groove, little steel ball is arranged in annular groove; Have a radial direction through hole at the annular groove place of Stem Mut, for the assembling of little steel ball.
In the through hole of described Stem Mut, seal plate is installed, is deviate to prevent little steel ball.
Adopt the Placement of welding between described seal plate and Stem Mut.
Gap between described little steel ball and annular groove is monolateral 0.1mm.
Described valve gap is titanium alloy material, adopts nitriding to process.
Described Stem Mut adopts the 9Cr18 material, carries out Quenching Treatment.
Between described valve gap and Stem Mut, adopt 7804 lubricating grease to be lubricated.
The bottom of described Stem Mut has a hexagonal hole, adopts electric discharge machining.
The present invention compared with prior art beneficial effect is:
(1) valve drive mechanism of the present invention, adopt at valve rod under the condition of the low materials of hardness such as titanium alloy, by large steel ball is installed between valve rod end face and Stem Mut, makes Stem Mut promote when valve rod travels forward to reduce surface friction drag and wearing and tearing; By little steel ball is installed in the circumferential groove in its end portion at valve rod and Stem Mut, can reduce surface friction drag and wearing and tearing while making Stem Mut pull valve rod to move backward, therefore there are the characteristics that cleanliness is high, surface friction drag is little.
(2) valve gap in the present invention adopts titanium alloy material and carries out the nitriding processing, Stem Mut adopts 9Cr18 and carries out Quenching Treatment, the requirement that both to have met satellite valve requirement valve gap material be titanium alloy, overcome again the deficiency that titanium alloy in drive mechanism is not wear-resistant, easily produce fifth wheel.
(3) in the present invention, the screw-thread fit position of valve gap and Stem Mut adopts the method for 7804 lubricating grease, has reduced the surface friction drag between valve gap and Stem Mut.
The accompanying drawing explanation
Fig. 1 is drive mechanism sketch of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 1, satellite valve drive mechanism of the present invention, comprise valve rod 1, little steel ball 2, large steel ball 4, valve gap 5 and Stem Mut 6.Have spherical shrinkage pool in valve rod 1 end, large steel ball 4 is positioned at shrinkage pool; At the inwall of Stem Mut 6 and the outer wall corresponding position of valve rod 1, have annular groove, little steel ball 2 is arranged in annular groove; Gap between in little steel ball 2 and annular groove is monolateral 0.1mm; At Stem Mut, 6 annular groove places have a radial direction through hole, the circumferential assembling for little steel ball 2.
A hexagonal hole is arranged in the bottom of Stem Mut 6, adopt electric discharge machining.Inner hexagon spanner by standard can move forwards or backwards by turn Stem Mut 6, thereby the band ovable valve stem moves forwards or backwards.
The present invention, by large steel ball 4 is installed between the end face at valve rod 1 and Stem Mut 6, makes Stem Mut 4 promote when valve rod 1 travels forward to reduce surface friction drag and wearing and tearing; By little steel ball 2 is installed in the circumferential groove in its end portion at valve rod 1 and Stem Mut 4, while making Stem Mut 6 pull valve rod 1 to move backward, can reduce surface friction drag and wearing and tearing.Therefore can adopt under the condition of the low materials of hardness such as titanium alloy at valve rod 1, have the advantages that cleanliness is high, surface friction drag is little.
The present invention is by the nitriding to valve gap 5, and the material of Stem Mut 6 is selected and process treating, the requirement that both to have met satellite valve requirement valve gap material be titanium alloy, overcome again the deficiency that titanium alloy in drive mechanism is not wear-resistant, easily produce fifth wheel, met the requirement of satellite to the valve transmission.
The unexposed technology of the present invention belongs to general knowledge as well known to those skilled in the art.
Claims (8)
1. a satellite valve drive mechanism, is characterized in that: comprise valve rod (1), little steel ball (2), large steel ball (4), valve gap (5) and Stem Mut (6); Have spherical shrinkage pool in valve rod (1) end, large steel ball (4) is positioned at shrinkage pool; At the inwall of Stem Mut (6) and the outer wall corresponding position of valve rod (1), have annular groove, little steel ball (2) is arranged in annular groove; Have a radial direction through hole at the annular groove place of Stem Mut (6), for the assembling of little steel ball (2).
2. according to a kind of satellite valve drive mechanism of claim 1, it is characterized in that: seal plate (3) is installed in the through hole of described Stem Mut (6), is deviate to prevent little steel ball (2).
3. according to a kind of satellite valve drive mechanism of claim 2, it is characterized in that: the Placement that adopts welding between described seal plate (3) and Stem Mut (6).
4. according to a kind of satellite valve drive mechanism of claim 1, it is characterized in that: the gap between described little steel ball (2) and annular groove is monolateral 0.1mm.
5. according to a kind of satellite valve drive mechanism of claim 1, it is characterized in that: described valve gap (5) is titanium alloy material, adopts nitriding to process.
6. according to a kind of satellite valve drive mechanism of claim 1, it is characterized in that: described Stem Mut (6) adopts the 9Cr18 material, carries out Quenching Treatment.
7. according to a kind of satellite valve drive mechanism of claim 1, it is characterized in that: between described valve gap (5) and Stem Mut (6), adopt 7804 lubricating grease to be lubricated.
8. according to a kind of satellite valve drive mechanism of claim 1, it is characterized in that: the bottom of described Stem Mut (6) has a hexagonal hole, adopts electric discharge machining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104311250A CN102937209A (en) | 2012-10-31 | 2012-10-31 | Transmission structure of satellite valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104311250A CN102937209A (en) | 2012-10-31 | 2012-10-31 | Transmission structure of satellite valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102937209A true CN102937209A (en) | 2013-02-20 |
Family
ID=47696123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104311250A Pending CN102937209A (en) | 2012-10-31 | 2012-10-31 | Transmission structure of satellite valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102937209A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035906A (en) * | 2017-01-17 | 2017-08-11 | 吉林省众鑫汽车装备有限公司 | A kind of automatically cleaning fluid flow directional control valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2136373Y (en) * | 1992-09-16 | 1993-06-16 | 岳泰 | Right-angle multi-way stop valve |
| JP2001317650A (en) * | 2000-05-09 | 2001-11-16 | Hayato Kobayashi | Solenoid valve |
| CN2856623Y (en) * | 2005-12-20 | 2007-01-10 | 承德江钻石油机械有限责任公司 | Parallel slide valve |
| CN201180854Y (en) * | 2007-12-10 | 2009-01-14 | 郑少聪 | Combination structure of multifunctional variable-stroke fast-opening valve stem and ball bearing nut |
| JP2009264523A (en) * | 2008-04-28 | 2009-11-12 | Honda Motor Co Ltd | Valve device |
| CN201462157U (en) * | 2009-07-17 | 2010-05-12 | 浙江欧斯特泵阀有限公司 | Valve rod lifting device for valve |
| CN102141158A (en) * | 2010-01-29 | 2011-08-03 | 江苏信得石油机械有限公司 | Novel flat plate valve with low operation moment |
-
2012
- 2012-10-31 CN CN2012104311250A patent/CN102937209A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2136373Y (en) * | 1992-09-16 | 1993-06-16 | 岳泰 | Right-angle multi-way stop valve |
| JP2001317650A (en) * | 2000-05-09 | 2001-11-16 | Hayato Kobayashi | Solenoid valve |
| CN2856623Y (en) * | 2005-12-20 | 2007-01-10 | 承德江钻石油机械有限责任公司 | Parallel slide valve |
| CN201180854Y (en) * | 2007-12-10 | 2009-01-14 | 郑少聪 | Combination structure of multifunctional variable-stroke fast-opening valve stem and ball bearing nut |
| JP2009264523A (en) * | 2008-04-28 | 2009-11-12 | Honda Motor Co Ltd | Valve device |
| CN201462157U (en) * | 2009-07-17 | 2010-05-12 | 浙江欧斯特泵阀有限公司 | Valve rod lifting device for valve |
| CN102141158A (en) * | 2010-01-29 | 2011-08-03 | 江苏信得石油机械有限公司 | Novel flat plate valve with low operation moment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035906A (en) * | 2017-01-17 | 2017-08-11 | 吉林省众鑫汽车装备有限公司 | A kind of automatically cleaning fluid flow directional control valve |
| CN107035906B (en) * | 2017-01-17 | 2024-01-23 | 科林蓝泰环境科技(长春)有限公司 | Self-cleaning fluid flow direction control valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130220 |