CN203051707U - Ventilating seal structure used for transmission box - Google Patents
Ventilating seal structure used for transmission box Download PDFInfo
- Publication number
- CN203051707U CN203051707U CN 201320024755 CN201320024755U CN203051707U CN 203051707 U CN203051707 U CN 203051707U CN 201320024755 CN201320024755 CN 201320024755 CN 201320024755 U CN201320024755 U CN 201320024755U CN 203051707 U CN203051707 U CN 203051707U
- Authority
- CN
- China
- Prior art keywords
- transmission case
- transmission box
- cavity volume
- containing cavity
- ventilating
- 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
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 61
- 238000007789 sealing Methods 0.000 claims description 17
- 239000012530 fluid Substances 0.000 abstract description 9
- 230000035699 permeability Effects 0.000 abstract description 7
- 230000001050 lubricating effect Effects 0.000 abstract 6
- 239000000314 lubricant Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- General Details Of Gearings (AREA)
Abstract
The utility model discloses a ventilating seal structure used for a transmission box and relates to the seal technical field. The ventilating seal structure used for the transmission box comprises a body. A groove and an external thread are formed in the outer side wall of the body. A seal ring is arranged in the groove. The interior of the body is hollow, and a first containing cavity is formed inside the body. One end, inserting into the transmission box, of the first containing cavity is a port. Ventilating holes are formed in parts, on the outer side of the transmission box, of the body. The ventilating holes are communicated with the outside and the first containing cavity. Oil return holes are formed in one side, extending into the transmission box, of the body. The oil return holes are communicated with the first containing cavity and the interior of the transmission box. When the ventilating seal structure used for the transmission box is used, lubricating fluid enters into the first containing cavity through the port on the bottom of the first containing cavity, the lubricating fluid constantly accumulates in the first containing cavity, but when the lubricating fluid reaches the oil return holes, the lubricating fluid flows back to the transmission box through the first containing cavity, so that the lubricating fluid does not flow out, and thus not only air permeability of the transmission box can be ensured, but also the lubricating fluid can be prevented from leaking.
Description
Technical field
The utility model relates to technical field of sealing technology, relates in particular to a kind of ventilative sealing configuration for transmission case.
Background technique
The ventilative seal arrangement that is used for the high-pressure service pump upper gear box requires to have ventilating performance, and the grease proofing sealability that leaks is arranged again simultaneously.Figure 1 shows that original a kind of ventilative sealing configuration, comprise body 1 and lid 2, this body 1 inner hollow forms first cavity volume 11, and the outer side wall of body 1 is provided with seal ring 3 and outside thread 13.The bottom of first cavity volume 11 is provided with first through hole 12, the open top of first cavity volume 11, opening is provided with a pad 4, pad 4 is provided with second through hole 41, lid 2 links to each other with the top of body 1, and be provided with in the lid 2 on second cavity volume, 21, the second cavity volumes 21 that communicate with second through hole 41 and form the third through-hole 22 that communicates with the external world.
Referring to Fig. 2, during use, body 1 is connected on the transmission case 5 by outside thread 13, the sealing that seal ring 3 is realized between body 1 and the transmission case 5, first through hole, first cavity volume, second through hole and second cavity volume are connected the inner and extraneous passage of transmission case with one of the common composition of third through-hole simultaneously, make transmission case to be in communication with the outside, guarantee the gas permeability of transmission case.But the ventilative sealing configuration of this form, the Lubricants that splashes in the transmission case enters in first cavity volume 11 from first through hole 12, when the Lubricants in first cavity volume 11 runs up to certain degree, will overflow from second through hole owing to the effect of oil pressure, enter in second cavity volume, flow to the external world by third through-hole again, cause leaking of Lubricants, therefore be necessary to change.
Summary of the invention
The utility model provides a kind of ventilative sealing configuration for transmission case at deficiency of the prior art, and Lubricants can not leak.
For solving the problems of the technologies described above, the utility model is solved by following technical proposals: a kind of ventilative sealing configuration for transmission case, comprise body, form groove and outside thread on the outer side wall of described body, be provided with seal ring in the described groove, described body interior hollow, form first cavity volume, the end that described first cavity volume stretches into transmission case is port, the part that is positioned at the described transmission case outside of described body is provided with air hole, described air hole is communicated with extraneous and described first cavity volume, and the side that described body stretches into described transmission case is provided with spill port, and described spill port is communicated with described first cavity volume and described transmission case inside.During assembling, the utility model is connected on the transmission case by outside thread, seal ring is realized the sealing between body and the transmission case, one of the common composition of first cavity volume, port and air hole is connected the inner and extraneous passage of transmission case, make transmission case to be in communication with the outside, guarantee the gas permeability of transmission case.During use, Lubricants enters in first cavity volume from the port of first cavity volume bottom, fluid is constantly accumulation in first cavity volume, but when arriving the spill port place, Lubricants can flow back in the transmission case in first cavity volume, Lubricants can not flow out, and so both can guarantee the gas permeability of transmission case, can guarantee that again Lubricants can not leak.
In the technique scheme, preferred, the part that described body is positioned at the described transmission case outside is a projection, and described air hole is arranged on the described projection.The effect of projection is to make things convenient for the workman that body is screwed to be fixed on the transmission case.
In the technique scheme, preferred, the border of described projection is provided with rib.Rib can be used as the point of application of force of workman when screwing, and further facilitates screwing of body.
In the technique scheme, preferred, described body sidewall is provided with a baffle plate, and described baffle plate contacts with the sidewall of described transmission case.
The beneficial effects of the utility model are: during use, Lubricants enters in first cavity volume from the port of first cavity volume bottom, fluid is constantly accumulation in first cavity volume, but when arriving the spill port place, Lubricants can flow back in the transmission case in first cavity volume, Lubricants can not flow out, and so both can guarantee the gas permeability of transmission case, can guarantee that again Lubricants can not leak.
Description of drawings
Fig. 1 is original ventilative sealing configuration.
Fig. 2 is that original ventilative sealing configuration is installed in the schematic representation on the transmission case.
Fig. 3 is the utility model embodiment's schematic representation.
Fig. 4 is installed in schematic representation on the transmission case for the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail: referring to Fig. 3, a kind of ventilative sealing configuration for transmission case, comprise body 1, form groove 14, outside thread 13 and baffle plate 10 on the outer side wall of body 1, be provided with seal ring 3 in the groove 14, body 1 inner hollow, form first cavity volume 11, the end that first cavity volume 11 stretches into transmission case 5 is port, and the part that body 1 is positioned at transmission case 5 outsides is a projection 15, forms air hole 17 on the projection 15.Air hole 17 is communicated with extraneous and first cavity volume 11, and the side that body 1 stretches into transmission case 5 is provided with spill port 16, and spill port 16 is communicated with first cavity volume 11 and transmission case 5 inside.The border of projection 15 is provided with rib 18.Baffle plate 10 contacts with the sidewall of transmission case 5.
Referring to Fig. 4, during installation, body relies on outside thread to be connected on the sidewall of transmission case.Seal ring is realized the sealing between body and the transmission case, and one of the common composition of first cavity volume, port and air hole is connected the inner and extraneous passage of transmission case, makes transmission case to be in communication with the outside, and guarantees the gas permeability of transmission case.During use, Lubricants enters in first cavity volume from the port of first cavity volume bottom, fluid is constantly accumulation in first cavity volume, but when arriving the spill port place, Lubricants can flow back in the transmission case in first cavity volume, Lubricants can not flow out, and so both can guarantee the gas permeability of transmission case, can guarantee that again Lubricants can not leak.
Claims (4)
1. ventilative sealing configuration that is used for transmission case, comprise body (1), form groove (14) and outside thread (13) on the outer side wall of described body (1), be provided with seal ring (3) in the described groove (14), described body (1) inner hollow, form first cavity volume (11), the end that described first cavity volume (11) stretches into transmission case (5) is port, the part that is positioned at described transmission case (5) outside of described body (1) is provided with air hole (17), described air hole (17) is communicated with extraneous and described first cavity volume (11), it is characterized in that: the side that described body (1) stretches into described transmission case (5) is provided with spill port (16), and described spill port (16) is communicated with described first cavity volume (11) and described transmission case (5) inside.
2. the ventilative sealing configuration for transmission case according to claim 1 is characterized in that: the part that described body (1) is positioned at described transmission case (5) outside is a projection (15), and described air hole (17) is arranged on the described projection (15).
3. the ventilative sealing configuration for transmission case according to claim 2, it is characterized in that: the border of described projection (15) is provided with rib (18).
4. the ventilative sealing configuration for transmission case according to claim 2, it is characterized in that: described body (1) sidewall is provided with a baffle plate (10), and described baffle plate (10) contacts with the sidewall of described transmission case (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320024755 CN203051707U (en) | 2013-01-17 | 2013-01-17 | Ventilating seal structure used for transmission box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320024755 CN203051707U (en) | 2013-01-17 | 2013-01-17 | Ventilating seal structure used for transmission box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203051707U true CN203051707U (en) | 2013-07-10 |
Family
ID=48734662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320024755 Expired - Fee Related CN203051707U (en) | 2013-01-17 | 2013-01-17 | Ventilating seal structure used for transmission box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203051707U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335095A (en) * | 2013-07-15 | 2013-10-02 | 南京金鑫传动设备有限公司 | Reducer |
| WO2017144370A1 (en) | 2016-02-25 | 2017-08-31 | Audi Ag | Pressure compensation device for a housing, in particular of a motor vehicle, and component for a motor vehicle |
-
2013
- 2013-01-17 CN CN 201320024755 patent/CN203051707U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335095A (en) * | 2013-07-15 | 2013-10-02 | 南京金鑫传动设备有限公司 | Reducer |
| CN103335095B (en) * | 2013-07-15 | 2016-02-03 | 南京金鑫传动设备有限公司 | A kind of retarder |
| WO2017144370A1 (en) | 2016-02-25 | 2017-08-31 | Audi Ag | Pressure compensation device for a housing, in particular of a motor vehicle, and component for a motor vehicle |
| DE102016202965B3 (en) * | 2016-02-25 | 2017-08-31 | Audi Ag | Pressure equalization device for a housing, in particular a motor vehicle, and component for a motor vehicle |
| US11174935B2 (en) | 2016-02-25 | 2021-11-16 | Audi Ag | Pressure compensation device for a housing, in particular of a motor vehicle, and component for a motor vehicle |
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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: 20130710 Termination date: 20190117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |