CN203560406U - Ventilating device for transmission - Google Patents
Ventilating device for transmission Download PDFInfo
- Publication number
- CN203560406U CN203560406U CN201320475767.0U CN201320475767U CN203560406U CN 203560406 U CN203560406 U CN 203560406U CN 201320475767 U CN201320475767 U CN 201320475767U CN 203560406 U CN203560406 U CN 203560406U
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- CN
- China
- Prior art keywords
- ventilating
- control shaft
- oil baffle
- shaft housing
- hole
- 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 - Fee Related
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Abstract
The utility model relates to a ventilating device for a transmission. The ventilating device comprises a control shaft housing, a ventilating rubber plug and an oil baffle plate. The ventilating rubber plug is connected with the control shaft housing via a mounting hole. The ventilating rubber plug is distributed with a cooling backflow channel, an inner ventilating hole and an outer ventilating hole. The inner ventilating hole and the outer ventilating hole are distributed at 180 degrees in a staggered mode. A dustproof cover is arranged at outside the inner ventilating hole and the outer ventilating hole. The oil baffle plate is disposed below the ventilating rubber plug and is fixedly arranged on a mounting surface of the oil baffle plate in the control shaft housing. An air vent is arranged between the oil baffle plate and the control shaft housing. The ventilating device for the transmission has following beneficial effects: the ventilating device is simple in structure, reasonable in design, easy in machining and production, low in cost, convenient in installation and disassembly, high in machining and assembly efficiency, convenient in maintenance, good in ventilating effect and high in reliability; and an oil leakage problem caused by excessive pressure at an oil seal part of the transmission is effectively avoided.
Description
Technical field
The utility model relates to a kind of automobile mechanism, is specifically related to a kind of transmission breather.
Background technique
At present, the automobile of being furnished with manual transmission has good power character, Economy and acceleration.Speed changer often can rise to 100 ℃ in the middle oil temperature that runs up, even higher, causes speed changer inner chamber gas expansion and lubricating oil atomization, and pressure in its inner chamber confined space is risen sharply.At this moment reasonably air-breather, to guaranteeing that speed changer is in normal working, particularly guarantees that its input, output shaft oil sealing place's sealing and lubricity have extremely important effect.For the work that guarantees that speed changer can be accurate, safe and reliable under any operating mode, speed changer all needs to be designed with air-breather, air-breather design needs to focus on rational structure and rational mounting point, on market, often have because the design of speed changer ventilating mechanism is improper, cause vent place to have oil vacuole to emerge, cause oil leakage, pollute the fault of speed changer outward appearance.
Summary of the invention
The purpose of this utility model is to overcome the deficiency existing in above-mentioned technology, provides a kind of simple in structure, reasonable in design, the transmission breather that in the time of can effectively preventing vent valve pressure release, oil gas leaks.。
In order to achieve the above object, the technical solution adopted in the utility model is: comprise Control Shaft housing, ventilation plug, oil baffle, described ventilation plug is connected with Control Shaft housing by mounting hole, ventilation plug is distributed with cooling for reflux passage, interior vent, outer vent, described interior vent and 180 ° of distributions of outer vent dislocation, interior vent and outer vent outside are provided with dust-proof cover, described oil baffle is positioned at the below of ventilation plug, oil baffle is fixedly mounted on Control Shaft enclosure interior oil baffle attachment face, between oil baffle and Control Shaft housing, be provided with vent.
The utility model has the advantages that:
1, simple in structure, reasonable in design, easily manufacturing, cost is low;
2, easy installation and removal, processing and assembling efficiency is high, and easy to maintenance;
3, can effectively prevent that speed changer oil sealing place is because of overpressure Leakage, ventilatory effect is good, and reliability is high.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model ventilation plug structural representation;
Fig. 3 is that the utility model ventilation plug is along A-A face sectional view.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
From Fig. 1-Fig. 3, the utility model comprises Control Shaft housing 1, ventilation plug 2, oil baffle 4, described ventilation plug 2 is connected with Control Shaft housing 1 by mounting hole 3, ventilation plug 2 is distributed with cooling for reflux passage 5, interior vent 6, outer vent 8, 180 ° of distributions of described interior vent 6 and outer vent 8 dislocation, interior vent 6 is provided with dust-proof cover 7 with outer vent 8 outsides, described oil baffle 4 is positioned at the below of ventilation plug 2, oil baffle 4 is fixedly mounted on the inner oil baffle attachment face of Control Shaft housing 1, between oil baffle 4 and Control Shaft housing, be provided with vent 9.
Described cooling for reflux passage 5 is hollow cylinder, is positioned at the center of ventilation plug 2.
When the utility model is worked at speed changer, variator cavities internal gear runs up, and drives lubricating oil splash in chamber, causes speed changer inner chamber gas expansion and lubricating oil atomization simultaneously.At these ventilating mechanism oil baffle 4 places, most of lubricant oil is blocked by oil baffle 4, cannot directly be splashed to ventilation plug 2 on, this process effectively complete intracavity liquid lubricant oil interception.Control Shaft housing 1 and ventilation plug 2 and oil baffle 4 composition control axle venting cavities.The gas and the lubricant mist that in chamber, expand enter in Control Shaft housing venting cavity along the vent 9 designing between oil baffle 4 and Control Shaft housing 1 inwall, until arrive the ventilation plug 2 on oil baffle 4 tops.In the cooling for reflux passage 5 of ventilation plug 2, most of lubricant mist condenses into liquid backflow to variator cavities through supercooling; Finally arriving at the interior ventilating hole 6 of ventilation plug 2 is expanding gas, and when speed changer inside reaches certain pressure, interior ventilating hole 6 opens, and breather is started working.Expanding gas enters interior ventilating hole 6, along ventilation plug dust-proof cover 7 and cooling for reflux passage 5 outer walls, form passage, the outer ventilating hole 8 of arrival and 180 ° of layouts of interior ventilating hole 6 dislocation, in final variator cavities, expanding gas is got rid of speed changer smoothly, makes speed changer inner chamber air pressure and extraneous balance.Be arranged on the ventilation plug dust-proof cover 7 of ventilation on plug 2 simultaneously and can effectively prevent that the impurity such as the extraneous dust of speed changer from entering in ventilation plug 2, can effectively avoid because the impurity such as dust stop up ventilation plug 2 risk that plug 2 lost efficacy that makes to ventilate.
Claims (2)
1. a transmission breather, comprise Control Shaft housing (1), ventilation plug (2), oil baffle (4), it is characterized in that: described ventilation plug (2) is connected with Control Shaft housing (1) by mounting hole (3), ventilation plug (2) is distributed with cooling for reflux passage (5), interior vent (6), outer vent (8), described interior vent (6) and outer vent (8) dislocation 180.Distribute, interior vent (6) is provided with dust-proof cover (7) with outer vent (8) outside, described oil baffle (4) is positioned at the below of ventilation plug (2), oil baffle (4) is fixedly mounted on the inner oil baffle attachment face of Control Shaft housing (1), is provided with vent (9) between oil baffle (4) and Control Shaft housing.
2. transmission breather according to claim 1, is characterized in that: described cooling for reflux passage (5) is hollow cylinder, is positioned at the center of ventilation plug (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320475767.0U CN203560406U (en) | 2013-07-31 | 2013-07-31 | Ventilating device for transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320475767.0U CN203560406U (en) | 2013-07-31 | 2013-07-31 | Ventilating device for transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203560406U true CN203560406U (en) | 2014-04-23 |
Family
ID=50510127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320475767.0U Expired - Fee Related CN203560406U (en) | 2013-07-31 | 2013-07-31 | Ventilating device for transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203560406U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715774A (en) * | 2016-03-31 | 2016-06-29 | 本钢板材股份有限公司 | Ventilation structure of speed reducer |
-
2013
- 2013-07-31 CN CN201320475767.0U patent/CN203560406U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715774A (en) * | 2016-03-31 | 2016-06-29 | 本钢板材股份有限公司 | Ventilation structure of speed reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20190731 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |