CN102767613A - Multifunctional air ventilator - Google Patents
Multifunctional air ventilator Download PDFInfo
- Publication number
- CN102767613A CN102767613A CN2012102485436A CN201210248543A CN102767613A CN 102767613 A CN102767613 A CN 102767613A CN 2012102485436 A CN2012102485436 A CN 2012102485436A CN 201210248543 A CN201210248543 A CN 201210248543A CN 102767613 A CN102767613 A CN 102767613A
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- China
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- cap body
- air breather
- functional air
- steel ball
- diameter
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Abstract
The invention discloses a multifunctional air ventilator, which comprises a cap body, a cap cover, a spring and a steel ball. The lower end of the cap body is in threaded connection with a source nipple of a box body. A ring groove is circumferentially formed on the lateral surface of the upper end of the cap body. A through hole is axially reserved in the cap body. A strip-type groove communicated with the through hole is radially formed on the end face of the upper end of the cap body, and is extended to the lateral surface of the upper end of the cap body. The bottom end of the spring contacts the steel ball, and the top of the spring is pressed against the inner surface of the cap cover buckled with the cap body. The invention has the advantages that the multifunctional air ventilator is attractive in appearance, compact in structure and small in outline dimension and nipple size, and a mounting space for the ventilator is saved; 2, problems about dust and damp prevention during the application of the air ventilator in a special environment are solved; and 3, the pollution of external pollutants to lubricating oil is completely eradicated, so that the replacement cycle of the lubricating oil is prolonged, and the service life of a gearbox is prolonged.
Description
Technical field
The present invention relates to a kind of multi-functional air breather.
Background technique
For solving transfer case at the engineering vehicle particular surroundings (moisture of dust, rainy day ...) and gear-box in special industry (the for example high dust of coal and cement, the high humidity of environmental protection ...) in dustproof, a damp proof and ventilative pressure release difficult problem when using.No matter what generally adopt at present is porous plug and ventilating cover, all can only play ventilative pressure release function, keeps pressure and atmospheric pressure balanced action in the casing; Get in the casing with the gas-permeable channels of moisture but can not solve extraneous small dust, thereby cause the problem that moisture content exceeds standard in the contaminated and lubricant oil of lubricant oil in the casing, make the turbidity test severe exacerbation of lubricant oil through them.Because the lubricant oil in the casing also plays lubricated and cooling action, the contamination factor η of lubricant oil in the Life Calculation of bearing to the casing upper bearing (metal)
cTo bearing life correction factor α
SKFPlay crucial effects, along with lubricant pollution coefficient η
cSuccessively decrease, α is counted in the bearing life correction
SKFSharply descend.In addition, uncleanly lubricant oil also plays negative effect to the fatigue life of gear, the wearing and tearing of oil sealing and the corrosion of inner body, and then has reduced the actual life of gear-box.
Summary of the invention
Existing breather is dustproof in order to overcome, the defective of damp proof insufficiency of function, the present invention relates to provide a kind of multi-functional air breather of taking into account dustproof, damp proof and ventilative pressure release.
Multi-functional air breather of the present invention is characterized in that: comprise cap body, cap, spring, steel ball, the lower end snail of described cap body is connected on the threaded coupling place of casing, and the upper side of described cap body is along annular groove circumferentially is set; Described cap axon is to offering through hole; The end face of the upper end of described cap body is disposed radially the bar-shaped trough that is communicated with described through hole; Described bar-shaped trough extends to the side of the upper end of described cap body; Described spring bottom contact steel ball, the top props up the internal surface that is fastened on the cap on the described cap body.
The diameter of the epimere of described through hole is greater than the diameter of described hypomere.
The diameter of described steel ball is between the diameter of the diameter of described epimere and described hypomere.
The number of described bar-shaped trough is 2, and on the end face of the upper end that is distributed in described cap body of symmetry.
The degree of depth of described bar-shaped trough and the same horizontal plane of the bottom land of described annular groove.
The height of described cap is greater than the bottom land of the described annular groove distance to the end face of the upper end of described cap body.
The side of the upper end of described cap body is provided with short slot.
The number of described short slot is 2, and symmetry be distributed in the side with the upper end of the cap body of bar-shaped trough diverse location.
Seal washer is installed in the surperficial contacting point of described cap body and described casing.
When the transfer case of speed reducer, gear-box work, lubricating oil temperature raises in the casing because the heat of gear, pivot friction generation makes, and causes air expansion in the casing, thereby has increased the pressure in the casing; When the pressure in the casing (road leads to pressure) during greater than the pressure of the gravity of steel ball and spring, steel ball is just lifted automatically and is opened to extraneous exhaust, plays ventilative pressure release effect; Environmental contaminants is taken out of under the hot air thrust that casing is discharged in the process of exhaust pressure relief, thereby guarantees that lubricant oil is not contaminated; When the transfer case of speed reducer, when gear-box quits work, because the reduction of lubricating oil temperature causes air contraction in the casing, thereby makes the pressure recovery normal pressure in the casing; At this moment, steel ball promotes steel ball and reliably compresses the hypomere of through hole under the acting in conjunction of gravity and spring pressure, thereby has closed casing and extraneous passage, guarantees that environmental contaminants can not get in the casing lubricant oil.
Beneficial effect of the present invention: 1, outward appearance is graceful, compact structure, and boundary dimension, interface size are little, have saved the installing space of breather; 2, dustproof, a damp proof difficult problem that the air breather is used have been solved under particular surroundings; 3, cut off the pollution of environmental contaminants to lubricant oil, this had both prolonged the replacement cycle of lubricant oil, had improved the working life of gear-box again.
Description of drawings
Fig. 1 is a structural drawing of the present invention
Fig. 2 is the sectional view of cap body of the present invention
Fig. 3 is the plan view of cap body of the present invention
Embodiment
Further specify the present invention below in conjunction with accompanying drawing
With reference to accompanying drawing:
Multi-functional air breather of the present invention comprises cap body 1, cap 2, spring 3, steel ball 4, and the lower end 11 of described cap body 1 is screwed onto the threaded coupling place of casing 5, and 12 sides, upper end of described cap body 1 are along annular groove 121 circumferentially is set; Described cap body 1 is axially offered through hole 13; The end face of the upper end 12 of described cap body 1 is disposed radially the bar-shaped trough 122 that is communicated with described through hole 13; Described bar-shaped trough 122 extends to the side of the upper end 12 of described cap body 1; Described spring 3 bottoms contact steel ball 4, the top props up the internal surface that is fastened on the cap 2 on the described cap body 1.
The diameter of the epimere 131 of described through hole 13 is greater than the diameter of described hypomere 132.
The diameter of described steel ball 4 is between the diameter of the diameter of described epimere 131 and described hypomere 132.
The number of described bar-shaped trough 122 is 2, and on the end face of the upper end that is distributed in described cap body 1 12 of symmetry.
The same horizontal plane of the bottom land of the degree of depth of described bar-shaped trough 122 and described annular groove 121.
The height of described cap 2 is greater than the bottom land of described annular groove 121 distance to the end face of the upper end 12 of described cap body 1.
The side of the upper end 12 of described cap body 1 is provided with short slot 123.
The number of described short slot 123 is 2, and symmetry be distributed in the side with the upper end 12 of the cap body 1 of bar-shaped trough 122 diverse locations.
Described cap body 1 is installed seal washer 6 with the surperficial contacting point of described casing 5.
When the transfer case of speed reducer, gear-box work, lubricating oil temperature raises in the casing because the heat of gear, pivot friction generation makes, and causes air expansions in the casing 5, thereby has increased the pressure in the casing 5; When the pressure in the casing 5 (road leads to pressure) during greater than the pressure of the gravity of steel ball 4 and spring 3, steel ball 4 is just lifted automatically and is opened to extraneous exhaust, plays ventilative pressure release effect; Environmental contaminants is taken out of under the hot air thrust that casing 5 is discharged in the process of exhaust pressure relief, thereby guarantees that lubricant oil is not contaminated; When the transfer case of speed reducer, when gear-box quits work, because the reduction of lubricating oil temperature causes air contraction in the casing 5, thereby makes the pressure recovery normal pressure in the casing 5; At this moment, steel ball 4 promotes steel ball 4 and reliably compresses the hypomere 132 of through hole 13 under the acting in conjunction of gravity and spring 3 pressure, thereby has closed casing 5 and extraneous passage, guarantees that environmental contaminants can not get in casing 5 lubricant oil.
The described content of this specification embodiment only is enumerating the way of realization of inventive concept; Should not being regarded as of protection scope of the present invention only limits to the concrete form that embodiment states, protection scope of the present invention also reach in those skilled in the art conceive according to the present invention the equivalent technologies means that can expect.
Claims (9)
1. multi-functional air breather, it is characterized in that: comprise cap body, cap, spring, steel ball, the lower end snail of described cap body is connected on the threaded coupling place of casing, and the upper side of described cap body is along annular groove circumferentially is set; Described cap axon is to offering through hole; The end face of the upper end of described cap body is disposed radially the bar-shaped trough that is communicated with described through hole; Described bar-shaped trough extends to the side of the upper end of described cap body; Described spring bottom contact steel ball, the top props up the internal surface that is fastened on the cap on the described cap body.
2. multi-functional air breather as claimed in claim 1 is characterized in that: the diameter of the epimere of described through hole is greater than the diameter of described hypomere.
3. multi-functional air breather as claimed in claim 2 is characterized in that: the diameter of described steel ball is between the diameter of the diameter of described epimere and described hypomere.
4. multi-functional air breather as claimed in claim 1 is characterized in that: the number of described bar-shaped trough is 2, and on the end face of the upper end that is distributed in described cap body of symmetry.
5. multi-functional air breather as claimed in claim 4 is characterized in that: the degree of depth of described bar-shaped trough and the same horizontal plane of the bottom land of described annular groove.
6. multi-functional air breather as claimed in claim 1 is characterized in that: the height of described cap is greater than the bottom land of the described annular groove distance to the end face of the upper end of described cap body.
7. multi-functional air breather as claimed in claim 4 is characterized in that: the side of the upper end of described cap body is provided with short slot.
8. multi-functional air breather as claimed in claim 7 is characterized in that: the number of described short slot is 2, and symmetry be distributed in the side with the upper end of the cap body of bar-shaped trough diverse location.
9. multi-functional air breather as claimed in claim 1 is characterized in that: seal washer is installed in the surperficial contacting point of described cap body and described casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102485436A CN102767613A (en) | 2012-07-18 | 2012-07-18 | Multifunctional air ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102485436A CN102767613A (en) | 2012-07-18 | 2012-07-18 | Multifunctional air ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102767613A true CN102767613A (en) | 2012-11-07 |
Family
ID=47095125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102485436A Pending CN102767613A (en) | 2012-07-18 | 2012-07-18 | Multifunctional air ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102767613A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3517359A1 (en) * | 1984-05-28 | 1985-11-28 | O.M.F.B. S.p.A., Provaglio d'Iseo, Brescia | Safety and drain plug, in particular for the casing of a gear mechanism running in an oil bath |
| CN200978946Y (en) * | 2006-12-07 | 2007-11-21 | 杭州杰牌传动科技有限公司 | Reduction box ventilation device |
| JP2008106792A (en) * | 2006-10-23 | 2008-05-08 | Toyota Motor Corp | Breather plug |
| CN201621251U (en) * | 2009-07-28 | 2010-11-03 | 徐州工程机械科技股份有限公司 | Mini-type self-regulation respirator |
| CN201723689U (en) * | 2009-12-25 | 2011-01-26 | 奇瑞汽车股份有限公司 | Vent plug |
| WO2011058571A1 (en) * | 2009-11-12 | 2011-05-19 | Arun Kumar Sinha | Air breather assembly with single vent and with single / twin ball valves |
| CN202732899U (en) * | 2012-07-18 | 2013-02-13 | 杭州杰牌传动科技有限公司 | Multifunctional air breather |
-
2012
- 2012-07-18 CN CN2012102485436A patent/CN102767613A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3517359A1 (en) * | 1984-05-28 | 1985-11-28 | O.M.F.B. S.p.A., Provaglio d'Iseo, Brescia | Safety and drain plug, in particular for the casing of a gear mechanism running in an oil bath |
| JP2008106792A (en) * | 2006-10-23 | 2008-05-08 | Toyota Motor Corp | Breather plug |
| CN200978946Y (en) * | 2006-12-07 | 2007-11-21 | 杭州杰牌传动科技有限公司 | Reduction box ventilation device |
| CN201621251U (en) * | 2009-07-28 | 2010-11-03 | 徐州工程机械科技股份有限公司 | Mini-type self-regulation respirator |
| WO2011058571A1 (en) * | 2009-11-12 | 2011-05-19 | Arun Kumar Sinha | Air breather assembly with single vent and with single / twin ball valves |
| CN201723689U (en) * | 2009-12-25 | 2011-01-26 | 奇瑞汽车股份有限公司 | Vent plug |
| CN202732899U (en) * | 2012-07-18 | 2013-02-13 | 杭州杰牌传动科技有限公司 | Multifunctional air breather |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121107 |