CN108458092A - Gearbox vent plug - Google Patents
Gearbox vent plug Download PDFInfo
- Publication number
- CN108458092A CN108458092A CN201810297957.5A CN201810297957A CN108458092A CN 108458092 A CN108458092 A CN 108458092A CN 201810297957 A CN201810297957 A CN 201810297957A CN 108458092 A CN108458092 A CN 108458092A
- Authority
- CN
- China
- Prior art keywords
- bowl body
- vent plug
- body structure
- dust cover
- gearbox
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/027—Gearboxes; Mounting gearing therein characterised by means for venting gearboxes, e.g. air breathers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a kind of gearbox vent plugs, including cock body of ventilating, venting cavity is equipped in the breather plug body, the top of the ventilation cock body is additionally provided with radial through-hole, the ventilation cock body lower end is equipped with helicitic texture, and position limiting structure, bowl body structure and dust cover are also equipped with successively upwards from helicitic texture；The dust cover and the bowl body structure are circumferentially fitted close with the ventilation cock body, and the dust cover and the bowl body structure are oppositely arranged, and the top of the bowl body structure and the inner wall of the dust cover abut against, and the top of the bowl body structure is equipped with relief hole.The present invention can effectively prevent gear box oil to overflow, and can multiple installing and dismounting, service life is longer.
Description
Technical field
The present invention relates to a kind of breather plug, especially a kind of gearbox vent plug.
Background technology
Gearbox vent plug is connect as a kind of ventilation device with gearbox top venthole, and function is mainly connected to
Gearbox inside cavity and air, when gearbox gears axis high speed rotation, gear box oil shakes and temperature increases and generates height
Pressure oil gas or oil vacuole, gearbox inner and outer air pressure is different at this time, and pressure superatmospheric in gearbox, breather plug is unidirectionally opened, released
Part oil gas is put, gearbox internal and external pressure balance is kept.
In the prior art, the monolithic construction breather plug of rubber material is used mostly, and one end of breather plug is inserted directly into change
In the venthole of fast case top, venting cavity is penetrated through with gearbox cavity, and venting cavity upper end side opens up bleeder port, gearbox heat engine
When the open-top bleeder port of high-pressure oil gas, air pressure is passed through air by bleeder port, completes pressure leak process.But due to existing breather plug
For rubber material, failure easy to aging is used for a long time；And be one-time formed monolithic construction, being dismounted for multiple times is fragile, uses
Service life is shorter, and maintenance cost is higher；Furthermore oil pressure is often accompanied by gear box oil during releasing in gearbox, for a long time using making
It is overflowed at gear box oil, customer complains.
Invention content
The object of the present invention is to provide a kind of gearbox vent plugs, and to solve deficiency in the prior art, it can be effective
Prevent gear box oil from overflowing, and can multiple installing and dismounting, service life is longer.
To achieve the above object, the present invention provides the following technical solutions：
A kind of gearbox vent plug, including ventilation cock body, the breather plug body is interior to be equipped with venting cavity, the ventilation cock body
Top is additionally provided with radial through-hole, and the ventilation cock body lower end is equipped with helicitic texture, and limit is also equipped with successively upwards from helicitic texture
Bit architecture, bowl body structure and dust cover；
The dust cover and the bowl body structure are circumferentially fitted close with the ventilation cock body, and the dust cover and institute
It states bowl body structure to be oppositely arranged, the top of the bowl body structure and the inner wall of the dust cover abut against, the bowl body structure
Top is equipped with relief hole.
Gearbox vent plug above-mentioned, it is preferable that the upper end of the ventilation cock body is equipped with hexagon head structure.
Gearbox vent plug above-mentioned, it is preferable that the bottom of the hexagon head structure is fixed at the top of the dust cover.
Gearbox vent plug above-mentioned, it is preferable that the relief hole includes multiple, and circumferentially equal along the bowl body structure
Cloth.
Gearbox vent plug above-mentioned, it is preferable that the relief hole is set to the edge of the bowl body structure.
Gearbox vent plug above-mentioned, it is preferable that the inside bottom surface of the bowl body structure from center to edge gradually downward
It tilts.
Gearbox vent plug above-mentioned, it is preferable that the bottom surface lowest point of the bowl body structure is equipped with oil leak hole.
Gearbox vent plug above-mentioned, it is preferable that the position limiting structure is cyclic structure, and fixation is set in the breather plug
On body.
Gearbox vent plug above-mentioned, it is preferable that the ventilation cock body, the dust cover and the bowl body structure and described
Position limiting structure is stainless steel.
When the gearbox vent plug works, high-pressure oil gas enters the venting cavity of breather plug with gear box oil from venthole,
Entering bowl body structure by through-hole, gear box oil is deposited on the bottom of bowl of bowl body structure at this time, and oil gas enters air by relief hole,
Pressure leak process is completed, part oil gas is discharged, keeps gearbox internal and external pressure balance；The present invention uses split structure, convenient for tearing open
It unloads and installs, its service life can be extended；And the lower end for cock body of ventilating is equipped with helicitic texture, can be thread directly into gearbox ventilation
Hole realizes the detachability of the breather plug, can repeatedly disassemble, and reuses；Also by be arranged bowl body structure, come collect with
The gear box oil that high-pressure oil gas overflows together, when the amount of gear box oil reach a certain height, oil gas directly flows after through-hole
It returns in gearbox.
Description of the drawings
Fig. 1 is the main structure diagram of gearbox vent plug provided by the invention；
Fig. 2 is the schematic cross-sectional view of gearbox vent plug provided by the invention；
Fig. 3 is the explosive view of gearbox vent plug provided by the invention.
Reference sign：
1- ventilation cock bodys, 11- venting cavities, 12- through-holes, 13- hexagon head structures, 2- dust covers, 3- bowl body structures, 31- are let out
Press hole, 4- position limiting structures.
Specific implementation mode
The embodiments described below with reference to the accompanying drawings are exemplary, is only used for explaining the present invention, and cannot be construed to
Limitation of the present invention.
The embodiment of the present invention：As shown in Figs. 1-3, a kind of gearbox vent plug, including ventilation cock body 1, the breather plug
Venting cavity 11 is equipped in body 1, the top of the ventilation cock body 1 is additionally provided with radial through-hole 12, and 1 lower end of ventilation cock body is equipped with
Helicitic texture also includes position limiting structure 4, bowl body structure 3 and dust cover 2 successively upwards from the helicitic texture.The dust cover 2
It is circumferentially fitted close with the ventilation cock body 1 with the bowl body structure 3, and the dust cover 2 and the bowl body structure 3 are opposite
Setting, the top of the bowl body structure 3 and the inner wall of the dust cover 2 abut against, and the top of the bowl body structure 3 is equipped with pressure release
Hole 31.
When the gearbox vent plug works, high-pressure oil gas enters the venting cavity of breather plug with gear box oil from venthole
11, enter bowl body structure 3 by through-hole 12, gear box oil is deposited on the bottom of bowl of bowl body structure 3 at this time, and oil gas passes through relief hole 31
Into air, pressure leak process is completed, discharges part oil gas, keeps gearbox internal and external pressure balance.Speed change provided in this embodiment
Case breather plug, it is easy for removal and installation using split structure, its service life can be extended；And the lower end for cock body 1 of ventilating is set
There is helicitic texture, gearbox stomata can be thread directly into, realize the detachability of the breather plug, can repeatedly disassemble, repeats
It uses；Also collect the gear box oil overflowed with high-pressure oil gas by the way that bowl body structure 3 is arranged, when the amount of gear box oil reaches
When certain altitude, oil gas directly flows back in gearbox after through-hole 12.
Wherein, as shown in Fig. 2, in order to make the preferably cooperation and support of dust cover 2 and bowl body structure 3, can make described
There is certain radian, such bowl body structure 3 are just supported on outward in the cambered surface at 2 top of dust cover at the edge of bowl body structure 3,
Structure is more stable.
It is preferably carried out in mode in one kind, the upper end of the ventilation cock body 1 is equipped with hexagon head structure 13, that is, is designed to often
Bolt header structure, can be easy to disassemble.
Further, as shown in Fig. 2, the top of the dust cover 2 is fixed on the bottom of the hexagon head structure 13.Hexagonal
The top of dust cover 2, is fixed on the bottom of hexagon head structure 13, hexagonal by the main body of 13 radially protruding of header structure ventilation cock body 1
The bottom of header structure 13 can be fixed and support to dust cover 2, its structure is made more to stablize.
In a kind of specifically embodiment, as shown in figure 3, the relief hole 31 includes multiple, can be 3,4,5
It is a, 6 etc., and circumferential uniformly distributed along the bowl body structure 3, setting is multiple, is convenient for the pressure release of high-pressure oil gas, circumferentially uniform cloth
It sets, is conducive to the pressure balance of the interior and entire gearbox vent plug of ventilation cock body 1.In the present embodiment, preferably six.
More specifically, the relief hole 31 is set to the edge of the bowl body structure 3.Since the air pressure above often is small,
So gas can be excluded from above, so relief hole 31 to be set to the edge of bowl body structure 3, it is more advantageous to the discharge of gas.
In another specifically embodiment, the inside bottom surface of the bowl body structure 3 from center to edge gradually downward
It tilts, then gear box oil can be convenient for the storage and discharge of gear box oil in lower, i.e. the bottom margin aggregation of bowl body structure 3.
Specifically, can oil leak hole be set in the bottom surface lowest point of the bowl body structure 3, extra gear box oil can be from
Oil leak hole is discharged.Further, which is equipped with oil cap, prevents gear box oil from flowing directly out, and fluid is caused to leak.
In addition, the position limiting structure 4 is cyclic structure, fixation is set on the ventilation cock body 1, specifically can be with screw thread
Diameter at structure is less than the main diameter of ventilation cock body 1, then the two junction has a step, can tie cricoid limit
Structure 4 is fixed at the step, can be limited to the installation site for cock body 1 of ventilating.
It is preferably carried out in mode in another kind, the ventilation cock body 1, the dust cover 2 and the bowl body structure 3 and institute
It is stainless steel to state position limiting structure 4, and using stainless steel, the processing of technics comparing maturation is more convenient, and can solve
Rubber material problem easy to aging, cock body 1, dust cover 2 and the bowl body structure 3 of ventilating certainly and position limiting structure 4 can also be other
Metal material, such as aluminium, copper, zinc, aluminium alloy or hard non-metallic material, such as nylon, carbon fiber.
The structure, feature and effect of the present invention, the above institute are described in detail based on the embodiments shown in the drawings
Only presently preferred embodiments of the present invention is stated, but the present invention is not to limit practical range, every structure according to the present invention shown in drawing
Change made by thinking, or is revised as the equivalent embodiment of equivalent variations, when not going beyond the spirit of the description and the drawings,
It should all be within the scope of the present invention.
Claims (9)
1. a kind of gearbox vent plug, including ventilation cock body (1), the ventilation cock body (1) is interior to be equipped with venting cavity (11), feature
It is：The top of the ventilation cock body (1) is additionally provided with radial through-hole (12), and ventilation cock body (1) lower end is equipped with screw thread knot
Structure is also equipped with position limiting structure (4), bowl body structure (3) and dust cover (2) successively upwards from the helicitic texture；
The dust cover (2) and the bowl body structure (3) are circumferentially fitted close with the ventilation cock body (1), and described dust-proof
Cover (2) and the bowl body structure (3) are oppositely arranged, and the top of the bowl body structure (3) and the inner wall of the dust cover (2) offset
It connects, the top of the bowl body structure (3) is equipped with relief hole (31).
2. gearbox vent plug according to claim 1, it is characterised in that：The upper end of the ventilation cock body (1) is equipped with six
Angle head structure (13).
3. gearbox vent plug according to claim 2, it is characterised in that：It is fixed on institute at the top of the dust cover (2)
State the bottom of hexagon head structure (13).
4. gearbox vent plug according to claim 1, it is characterised in that：The relief hole (31) includes multiple, and edge
The bowl body structure (3) is circumferentially uniformly distributed.
5. gearbox vent plug according to claim 4, it is characterised in that：The relief hole (31) is set to the bowl body knot
The edge of structure (3).
6. gearbox vent plug according to claim 1, it is characterised in that：The inside bottom surface of the bowl body structure (3) from
Center tilts gradually downward to edge.
7. gearbox vent plug according to claim 6, it is characterised in that：The bottom surface lowest point of the bowl body structure (3)
Equipped with oil leak hole.
8. gearbox vent plug according to claim 1, it is characterised in that：The position limiting structure (4) is cyclic structure, Gu
Surely it is set on the ventilation cock body (1).
9. gearbox vent plug according to claim 1, it is characterised in that：The ventilation cock body (1), the dust cover
(2) and the bowl body structure (3) and the position limiting structure (4) are stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810297957.5A CN108458092A (en) | 2018-03-30 | 2018-03-30 | Gearbox vent plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810297957.5A CN108458092A (en) | 2018-03-30 | 2018-03-30 | Gearbox vent plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108458092A true CN108458092A (en) | 2018-08-28 |
Family
ID=63235047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810297957.5A Pending CN108458092A (en) | 2018-03-30 | 2018-03-30 | Gearbox vent plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108458092A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719602A (en) * | 2021-07-13 | 2021-11-30 | 东风汽车集团股份有限公司 | Gearbox air breather and gearbox |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202100684U (en) * | 2011-05-31 | 2012-01-04 | 长城汽车股份有限公司 | Breather plug for automobile gear box |
| CN202597658U (en) * | 2012-04-28 | 2012-12-12 | 陕西法士特齿轮有限责任公司 | Waterproof automobile gearbox ventilation plug |
| CN104864076A (en) * | 2015-05-22 | 2015-08-26 | 陕西法士特齿轮有限责任公司 | Ventilation plug |
-
2018
- 2018-03-30 CN CN201810297957.5A patent/CN108458092A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202100684U (en) * | 2011-05-31 | 2012-01-04 | 长城汽车股份有限公司 | Breather plug for automobile gear box |
| CN202597658U (en) * | 2012-04-28 | 2012-12-12 | 陕西法士特齿轮有限责任公司 | Waterproof automobile gearbox ventilation plug |
| CN104864076A (en) * | 2015-05-22 | 2015-08-26 | 陕西法士特齿轮有限责任公司 | Ventilation plug |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719602A (en) * | 2021-07-13 | 2021-11-30 | 东风汽车集团股份有限公司 | Gearbox air breather and gearbox |
| CN113719602B (en) * | 2021-07-13 | 2024-01-16 | 东风汽车集团股份有限公司 | Gearbox ventilation device and gearbox |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180828 |