CN203641461U - Vent cap of speed reducer - Google Patents
Vent cap of speed reducer Download PDFInfo
- Publication number
- CN203641461U CN203641461U CN201320865976.6U CN201320865976U CN203641461U CN 203641461 U CN203641461 U CN 203641461U CN 201320865976 U CN201320865976 U CN 201320865976U CN 203641461 U CN203641461 U CN 203641461U
- Authority
- CN
- China
- Prior art keywords
- vent
- abat
- boss
- speed reducer
- scavenge duct
- 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 - Lifetime
Links
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 24
- 239000000428 dust Substances 0.000 claims abstract description 21
- 230000000694 effects Effects 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract 1
- 238000009423 ventilation Methods 0.000 description 6
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model discloses a vent cap of a speed reducer. The vent cap comprises a vent cap body. A vent hole is formed in the axial direction of the vent cap body. The vent cap is characterized in that a boss is arranged on the upper end face of the vent cap body, an air change hole is formed in the axial direction of the boss and communicated with the vent hole, a dust cap is arranged on the air change hole, and an air change channel is arranged between the dust cap and the boss. The vent cap has the good air change capacity and the good dust prevention effect, and is capable of reducing oil leakage generated at the sealing position of the speed reducer, simple in structure and reasonable in design.
Description
Technical field
The utility model relates to a kind of speed reducer accessory, is specifically related to a kind of speed reducer abat-vent.
Background technique
The abat-vent of speed reducer, is used for ventilating, and is mainly used to balance speed reducer internal pressure and outside atmospheric pressure, reduces to a certain extent leakage of oil.Speed reducer is in the case of the outdoor or continuous operation in summer, and it is very high that temperature can become, and the gas of speed reducer inside can expand certainly, in order not damage the dynamic oil sealing of speed reducer, so speed reducer is ventilative also very important., the abat-vent of general speed reducer can be screwed on pouring orifice, after abat-vent is removed, just can refuel.
The structure of existing abat-vent comprises abat-vent body, abat-vent body is provided with outside thread, abat-vent body axial direction is provided with vent, this vent is blind hole, abat-vent body be provided with in the radial direction air-vent, air-vent and vent conducting, existing abat-vent, only have an air-vent, air-vent aperture is little, ventilation ability, and be arranged in gas cap body in the radial direction, when cool ambient air enters, air-vent is easily stopped up by dust, also can easily cause speed reducer sealing place leakage of oil.
Summary of the invention
The purpose of this utility model is: for the deficiencies in the prior art, the utility model provides a kind of speed reducer abat-vent, has ventilation ability and dust-proof effect all relatively good, also can reduce speed reducer sealing place leakage of oil simultaneously, and simple in structure, reasonable in design.
To achieve these goals, the utility model has adopted following technological scheme:
A kind of speed reducer abat-vent, comprise abat-vent body, described abat-vent body axial direction is provided with vent, it is characterized in that: described abat-vent body upper-end surface is provided with boss, described boss axial direction is provided with air-vent, described air-vent and vent conducting, described air-vent is provided with dust cap, between described dust cap and boss, is provided with scavenge duct.
Adopt after above-mentioned preferred version, air-vent and dust cap the ventilation ability and the dust-proof effect that have improved speed reducer abat-vent be set, arrange so simple in structure, reasonable in design.
As preferably, described scavenge duct comprises radially scavenge duct and axially scavenge duct, described radially scavenge duct and axially scavenge duct conducting.Adopt after above-mentioned preferred version, one side ventilation effect is set so good, simple in structure on the other hand.
As preferably, described boss comprises boss body, the other end of the relative abat-vent body of described boss body one end is provided with the chimb extending along boss body radial outward, the other end of the relative boss body of described chimb one end is provided with annular convex rib, described annular convex rib is provided with groove, forms radially scavenge duct between described groove and dust cap.Adopt after above-mentioned preferred version, arrange so simple in structurely, reasonable in design, simultaneously can make again speed reducer abat-vent ventilation effect good.
As preferably, described chimb is made as polygonal, and the cross section of the inner side of described dust cap is made as circle, between described dust cap inner side and chimb, forms axial scavenge duct.Adopt after above-mentioned preferred version, chimb be made as polygonal can and dust cap between form axial scavenge duct, arrange so simple in structure, save processing scavenge duct operation.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment's decomposition texture schematic diagram;
Fig. 2 is the structural representation of the utility model embodiment's abat-vent body;
Fig. 3 is the utility model embodiment's cross-sectional view.
Embodiment
As shown in 1-3 figure, a kind of speed reducer abat-vent, comprise abat-vent body 1, abat-vent body 1 axial direction is provided with vent 11, abat-vent body 1 upper-end surface is provided with boss 12, and boss 12 axial directions are provided with air-vent 121, air-vent 121 and vent 11 conductings, air-vent 121 is provided with dust cap 2, between dust cap 2 and boss 12, is provided with scavenge duct 3; Scavenge duct 3 comprises radially scavenge duct 31 and axially scavenge duct 32, radially scavenge duct 31 and axial 32 scavenge duct conductings; Boss 12 comprises boss body 122, the other end of boss body 122 relative abat-vent body 1 one end is provided with the chimb 123 extending along boss body 122 radial outward, the other end of chimb 123 relative boss body 122 one end is provided with annular convex rib 1231, annular convex rib 1231 is provided with groove 12311, forms radially scavenge duct 31 between groove 12311 and dust cap 2; Chimb 123 is made as polygonal, and the cross section of the inner side of dust cap 2 is made as circle, forms axial scavenge duct 32 between dust cap 2 inner sides and chimb 123.The utility model optimizing breathing cap body, boss, air-vent and vent coaxially arrange, arrange and be convenient to production and processing like this, the beneficial effects of the utility model be there is ventilation ability and dust-proof effect relatively good, simple in structure, reasonable in design.
Claims (4)
1. a speed reducer abat-vent, comprise abat-vent body, described abat-vent body axial direction is provided with vent, it is characterized in that: described abat-vent body upper-end surface is provided with boss, described boss axial direction is provided with air-vent, described air-vent and vent conducting, described air-vent is provided with dust cap, between described dust cap and boss, is provided with scavenge duct.
2. speed reducer abat-vent according to claim 1, is characterized in that: described scavenge duct comprises radially scavenge duct and axially scavenge duct, described radially scavenge duct and axially scavenge duct conducting.
3. speed reducer abat-vent according to claim 2, it is characterized in that: described boss comprises boss body, the other end of the relative abat-vent body of described boss body one end is provided with the chimb extending along boss body radial outward, the other end of the relative boss body of described chimb one end is provided with annular convex rib, described annular convex rib is provided with groove, forms radially scavenge duct between described groove and dust cap.
4. speed reducer abat-vent according to claim 3, is characterized in that: described chimb is made as polygonal, the cross section of the inner side of described dust cap is made as circle, between described dust cap inner side and chimb, forms axial scavenge duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320865976.6U CN203641461U (en) | 2013-12-25 | 2013-12-25 | Vent cap of speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320865976.6U CN203641461U (en) | 2013-12-25 | 2013-12-25 | Vent cap of speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203641461U true CN203641461U (en) | 2014-06-11 |
Family
ID=50872707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320865976.6U Expired - Lifetime CN203641461U (en) | 2013-12-25 | 2013-12-25 | Vent cap of speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203641461U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673824A (en) * | 2016-04-05 | 2016-06-15 | 中车戚墅堰机车车辆工艺研究所有限公司 | Breather device of light rail gearbox |
| CN110159736A (en) * | 2019-06-18 | 2019-08-23 | 五冶集团上海有限公司 | A kind of speed reducer ventilation cap structure |
-
2013
- 2013-12-25 CN CN201320865976.6U patent/CN203641461U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673824A (en) * | 2016-04-05 | 2016-06-15 | 中车戚墅堰机车车辆工艺研究所有限公司 | Breather device of light rail gearbox |
| CN110159736A (en) * | 2019-06-18 | 2019-08-23 | 五冶集团上海有限公司 | A kind of speed reducer ventilation cap structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |