CN102840311A - Ventilation plug used for transmission - Google Patents
Ventilation plug used for transmission Download PDFInfo
- Publication number
- CN102840311A CN102840311A CN2012103044958A CN201210304495A CN102840311A CN 102840311 A CN102840311 A CN 102840311A CN 2012103044958 A CN2012103044958 A CN 2012103044958A CN 201210304495 A CN201210304495 A CN 201210304495A CN 102840311 A CN102840311 A CN 102840311A
- Authority
- CN
- China
- Prior art keywords
- ventilation plug
- cock body
- breather plug
- oil
- ventilation cock
- 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
- 238000009423 ventilation Methods 0.000 title claims abstract description 42
- 230000005540 biological transmission Effects 0.000 title abstract description 5
- 239000004519 grease Substances 0.000 claims description 26
- 239000003921 oil Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 7
- 239000012530 fluid Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 239000003595 mist Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010721 machine oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
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- General Details Of Gearings (AREA)
Abstract
Provided is a ventilation plug used for a transmission. The ventilation plug used for the transmission is mainly composed of a ventilation plug body, a ventilation plug cap, an oil-baffling sheet pillar, oil-baffling sheets, a baffle plate and an internal baffling ring, wherein at least two groups of oil-baffling sheets which are arranged in alternate mode and semicircular are installed inside the ventilation plug body and directly inserted into the oil-baffling sheet pillar inside the ventilation plug body. The baffle plate with small holes is arranged on the lower portion of the ventilation plug body, and the outer side of the baffle plate is fixed on the ventilation plug body through the internal baffling ring. The ventilation plug cap of a spline shape is arranged on the upper portion of the ventilation plug body and fixed through a punched rivet after passing through a ring groove arranged on a side wall of the ventilation plug body. The ventilation plug used for the transmission has the advantages of being simple in structure, simple and convenient to machine and assemble and the like.
Description
Technical field
What the present invention relates to is that a kind of speed changer is used breather plug, belongs to a kind of accessory technology of speed changer.
Background technique
Engineering machinery speed changer, automotive transmission and marine gearbox etc.; The gear-box inner fluid has difference variation during its work; Moving elements such as gear in the gear-box can cause the change of its internal air volume when turning round, air pressure that it is inner and temperature difference occurs with external atmospheric pressure and atmospheric temperature, promptly so-called air pumping effect; Air pumping effect is wanted consumed energy; In order to reduce this part energy consumption, need the communication apparatus of design a kind of gear-box inside and its exterior, the most frequently used is exactly breather plug.Ventilation is plugged with two effects: the firstth, and the air in the gear-box is communicated with ambient atmosphere, and pressure and the atmosphere kept in the gear box keep balance; The secondth, the dust in the ambient atmosphere, foul particle or moisture are blocked, make it in few entering gear-box as far as possible, the oily minimally in its inner mist of oil is discharged outside the gear-box, reduce the machine oil loss and prevent atmosphere pollution.The cleaning that keeps the casing inner fluid, the working life of prolongation gearbox.
Existing breather plug standard has: QC/T410-1999, QC/T412-1999 are mainly automobile drive axle, speed changer is used breather plug, all adopts tapered thread made in Great Britain with the body attachment portion.Actual proof when the standard breather plug uses on the engineering machinery speed changer especially, when mist of oil is discharged in body through breather plug, has fluid unavoidably and spills from breather plug with gas, thereby pollute.Therefore, for the leakage of oil that prevents breather plug appearance when ventilating, the phenomenon of spattering oil, what on the engineering machinery ransaxle, generally adopt at present is the long sebific duct of tapped hole connection that breaks from the ransaxle housing; Sebific duct finally is fixed on the vehicle frame, like this when gas is discharged from sebific duct, though fluid also can be along with gas is taken out of; But because the length of sebific duct is longer; Fluid can be deposited on when being discharged from the sebific duct inwall gradually, in the inlet body that slowly refluxes at last, though such setting can effectively prevent leakage of oil and spatter oily phenomenon; But sebific duct contacts perishable damage with machine oil for a long time, causes using with maintenance cost all very high.
Summary of the invention
The objective of the invention is to overcome the deficiency that existing technology exists; And provide that a kind of structure is simple relatively, manufacturing and breather plug easy for installation; It can play the effect of ventilation well; Can prevent simultaneously the leakage of lubricant oil in the gearbox again preferably, stop the external contamination thing to get in the gearbox.
The objective of the invention is to accomplish through following technological scheme; It mainly is made up of with back-up ring ventilation cock body, breather plug block, grease baffle post, grease baffle, baffle plate and hole; At least be provided with grease baffle two groups of interlaced arrangement, semicircular in shape in the described ventilation cock body, said grease baffle directly is inserted on the grease baffle post in the ventilation cock body.
Narrow meshed baffle plate is adopted in described ventilation cock body bottom, and its outside is fixed on the said ventilation cock body with back-up ring with the hole.
Dispose the breather plug block of employing spline profile above the described ventilation cock body, and pass through to decide towards rivet clasp through the ring recess that the breather plug body sidewall is provided with.
Aspect the seepage of the present invention's lubricant oil in preventing gearbox, because staggered installation of the semicircle grease baffle of the inner employing of breather plug multi-disc played good barrier effect to the lubricant oil from casing toward external leakage.The vent that stamping forming spline shape breather plug block is many with the quantity that the breather plug assembling forms, opening is little and be directed downwards is to preventing that the external contamination thing from stopping up breather plug and playing good barrier effect.It has simple in structure, processes and assemble characteristics such as simple and convenient.
Description of drawings
Fig. 1 is a sectional structure schematic representation of the present invention.
Fig. 2 is the structural representation of looking up of the present invention.
Embodiment
To combine below accompanying drawing to the present invention make detailed introduction: Fig. 1, shown in 2; The present invention mainly is made up of with back-up ring 6 ventilation cock body 1, breather plug block 2, grease baffle post 3, grease baffle 4, baffle plate 5 and hole; At least be provided with grease baffle 4 two groups of interlaced arrangement, semicircular in shape in the described ventilation cock body 1, said grease baffle 4 directly is inserted on the grease baffle post 3 in the ventilation cock body 1.
Narrow meshed baffle plate 5 is adopted in described ventilation cock body 1 bottom, and its outside is fixed on the said ventilation cock body 1 with back-up ring 6 with the hole.
Described ventilation cock body 1 top disposes the breather plug of employing spline profile and blocks a shot 2, and the ring recess that is provided with through ventilation cock body 1 sidewall passes through to decide towards rivet clasp.
Baffle plate 5 and hole are installed with back-up ring 6 during assembling earlier, grease baffle 4 assembles by the mode of Fig. 4 with grease baffle post 3 then, and the quantity of different gearbox grease baffles can be according to gearbox Throughput and the adjustment of seepage oil situation.The grease baffle breach is interspersed during assembling.Assembling back integral body is put into ventilation cock body 1.On ventilation cock body 1, cover breather plug block 2 then, evenly fix in the groove position of breather plug 1 at last, i.e. Fig. 1 sequence number 7 places towards 2 of rivetings.
The fluid that this breather plug is preferably selected when installing to splash away from gearbox or isolate with oil baffle is placed sealing gasket at threaded joints during installation, tightens through the flat filament 8 that mills out on the ventilation cock body, prevents that breather plug is loosening.
The working principle of this breather plug is: the fuel-air mixture body stops that through the first layer of baffle plate 5 back arrives breather plug inside in the gearbox; After the multiple maze-type structure that grease baffle 4 is formed stops; Most of oil is by grease baffle 4 and the absorption of breather plug 1 inwall in the mixed gas; Gas flows out from spline female cap cap 2 indentation, there through the breach that ventilation cock body 1 top mills out then.And by the lubricant oil of grease baffle 4 and breather plug 1 inwall absorption, be back in the gearbox casing automatically again after being accumulated to a certain degree.
The present invention adopts maze-type structure in described ventilation cock body, be arranged to the semicircle grease baffle of rare two groups of interlaced arrangement in the ventilation cock body, and the mist of oil in the gearbox, gas are played multiple stopping; Grease baffle directly inserts the grease baffle post, and its installation has characteristics simply and easily.
The present invention adopts narrow meshed baffle plate in said ventilation cock body bottom, and mist of oil is played preliminary barrier effect; The sealing gasket sealing is adopted in the threaded connection place of breather plug in addition.
Breather plug block of the present invention adopts the spline profile, and it can well be ventilated, and can prevent that outside dirt from getting into or stopping up breather plug passage, beautiful shape simultaneously again.
Claims (3)
1. a speed changer is used breather plug; It mainly is made up of with back-up ring 6 ventilation cock body 1, breather plug block 2, grease baffle post 3, grease baffle 4, baffle plate 5 and hole; It is characterized in that being provided with at least in the described ventilation cock body (1) grease baffle two groups of interlaced arrangement, semicircular in shape (4), said grease baffle (4) directly is inserted on the grease baffle post (3) in the ventilation cock body (1).
2. speed changer according to claim 1 is used breather plug, it is characterized in that described ventilation cock body (1) bottom adopts narrow meshed baffle plate (5), and its outside is fixed on the said ventilation cock body (1) with back-up ring (6) with the hole.
3. speed changer according to claim 1 and 2 is used breather plug, it is characterized in that described ventilation cock body (1) top disposes the breather plug block (2) that adopts the spline profile, and the ring recess that is provided with through ventilation cock body (1) sidewall is through fixed towards rivet clasp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103044958A CN102840311A (en) | 2012-08-24 | 2012-08-24 | Ventilation plug used for transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103044958A CN102840311A (en) | 2012-08-24 | 2012-08-24 | Ventilation plug used for transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102840311A true CN102840311A (en) | 2012-12-26 |
Family
ID=47367947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103044958A Pending CN102840311A (en) | 2012-08-24 | 2012-08-24 | Ventilation plug used for transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102840311A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633065A (en) * | 2014-12-26 | 2015-05-20 | 南车戚墅堰机车车辆工艺研究所有限公司 | Breather for gear box and using method of breather for gear box |
| CN113883315A (en) * | 2021-08-31 | 2022-01-04 | 东风汽车集团股份有限公司 | Air pipe valve body |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10220564A (en) * | 1997-02-07 | 1998-08-21 | Kubota Corp | Blazer structure for working vehicle |
| CN202118216U (en) * | 2011-06-07 | 2012-01-18 | 南京创力传动机械有限公司 | Ventilation cap of high speed gear case |
| CN202251861U (en) * | 2011-09-13 | 2012-05-30 | 南车青岛四方机车车辆股份有限公司 | Breather of transmission case of coupler of diesel motor car |
| CN202366594U (en) * | 2011-10-21 | 2012-08-08 | 靖江威尔通信技术有限公司 | Inserted labyrinth ventilation cap |
| CN202833986U (en) * | 2012-08-24 | 2013-03-27 | 杭州前进齿轮箱集团股份有限公司 | Breather plug for speed changer |
-
2012
- 2012-08-24 CN CN2012103044958A patent/CN102840311A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10220564A (en) * | 1997-02-07 | 1998-08-21 | Kubota Corp | Blazer structure for working vehicle |
| CN202118216U (en) * | 2011-06-07 | 2012-01-18 | 南京创力传动机械有限公司 | Ventilation cap of high speed gear case |
| CN202251861U (en) * | 2011-09-13 | 2012-05-30 | 南车青岛四方机车车辆股份有限公司 | Breather of transmission case of coupler of diesel motor car |
| CN202366594U (en) * | 2011-10-21 | 2012-08-08 | 靖江威尔通信技术有限公司 | Inserted labyrinth ventilation cap |
| CN202833986U (en) * | 2012-08-24 | 2013-03-27 | 杭州前进齿轮箱集团股份有限公司 | Breather plug for speed changer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633065A (en) * | 2014-12-26 | 2015-05-20 | 南车戚墅堰机车车辆工艺研究所有限公司 | Breather for gear box and using method of breather for gear box |
| CN113883315A (en) * | 2021-08-31 | 2022-01-04 | 东风汽车集团股份有限公司 | Air pipe valve body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121226 |