CN202833986U - Breather plug for speed changer - Google Patents
Breather plug for speed changer Download PDFInfo
- Publication number
- CN202833986U CN202833986U CN201220423661.1U CN201220423661U CN202833986U CN 202833986 U CN202833986 U CN 202833986U CN 201220423661 U CN201220423661 U CN 201220423661U CN 202833986 U CN202833986 U CN 202833986U
- Authority
- CN
- China
- Prior art keywords
- breather plug
- cock body
- plug body
- speed changer
- 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.)
- Expired - Lifetime
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- General Details Of Gearings (AREA)
Abstract
A breather plug for a speed changer is mainly composed of a breather plug body, a breather plug covering cap, oil baffle plate columns, oil baffle plates, a baffle and a check ring for a hole. At least two groups of the oil baffle plates which are arranged in a staggered mode and are of semicircular shapes are arranged inside the breather plug body. The oil baffle plates are directly inserted into the oil baffle plate columns inside the breather plug body. The baffle with a small hole is adopted on the lower portion of the breather plug body, and the outer side of the breather plug body is fixed on the breather plug body through the check ring for the hole. The breather plug covering cap with spline type appearance is arranged above the breather plug body in a distributing mode, and the breather plug covering cap is fixed through riveting of ring grooves which are arranged on the side wall of the breather plug body. The breather plug for the speed changer has the advantages of being simple in structure, simple and convenient to process and assemble and the like.
Description
Technical field
The utility model relates to a kind of speed changer breather plug, belong to a kind of accessory technology of speed changer.
Background technique
Construction machinery transmission, automotive transmission and marine gearbox etc., the gear-box inner fluid has difference variation during its work, the moving elements such as gear in the gear-box can cause the change of its internal air volume when turning round, the air pressure that it is inner and temperature difference occurs with external atmospheric pressure and atmospheric temperature, it is 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 to enter less in the 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, be mainly automobile drive axle, speed changer breather plug, and all adopt tapered thread made in Great Britain with the body attachment portion.Actual proof, standard breather plug when mist of oil is discharged in the body through breather plug, have unavoidably fluid and spill from breather plug with gas, thereby pollute especially when construction machinery transmission uses.Therefore, for the leakage of oil that prevents that breather plug from occurring when ventilating, spatter the phenomenon of oil, what generally adopt on driving bridge for engineering machinery at present is to connect long sebific duct from the disconnected tapped hole of Driving axle housing, sebific duct finally is fixed on the vehicle frame, like this when gas is discharged from sebific duct, although 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 the rubber tube inner wall when being discharged from gradually, slowly reflux at last in the inlet body, although such setting can effectively prevent leakage of oil and spatter oily phenomenon that 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 purpose of this utility model is to overcome the deficiency that prior art exists, and provide that a kind of structure is relatively simple, manufacturing and breather plug easy for installation, it can play the effect of ventilation well, can prevent preferably again simultaneously the leakage of lubricant oil in the gearbox, stop the external contamination thing to enter in the gearbox.
The purpose of this utility model is finished by following technical solution, it mainly is comprised 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, described grease baffle directly is inserted on the grease baffle post of ventilation in the cock body.
Narrow meshed baffle plate is adopted in described ventilation cock body bottom, and its outside is fixed on the described ventilation cock body with back-up ring with the hole.
Described ventilation cock body top disposes the breather plug block that adopts the spline profile, and rushes rivet clasp calmly by the ring recess of breather plug body sidewall setting.
Aspect the seepage of the utility model lubricant oil in preventing gearbox, because the inner semicircle grease baffle of multi-disc that adopts of breather plug is staggered installation of, the lubricant oil from casing toward external leakage is played good barrier effect.Stamping forming spline shape breather plug block and the vent that quantity is many, opening is little and direction is downward that the breather plug assembling forms play good barrier effect to preventing external contamination thing obstruction breather plug.It has simple in structure, processes and assemble the characteristics such as simple and convenient.
Description of drawings
Fig. 1 is sectional structure schematic representation of the present utility model.
Fig. 2 is the structural representation of looking up of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail: shown in Fig. 1,2, the utility model mainly is comprised 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, described 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 described ventilation cock body 1 with back-up ring 6 with the hole.
Described ventilation cock body 1 top disposes the breather plug block 2 that adopts the spline profile, and rushes rivet clasp calmly by the ring recess of ventilation cock body 1 sidewall setting.
Baffle plate 5 and hole back-up ring 6 is installed first during assembling, and then grease baffle 4 assembles by the mode of Fig. 4 with grease baffle post 3, and the quantity of different gearbox grease baffles can be adjusted according to gearbox Throughput and leakage of oil situation.The grease baffle breach is interspersed during assembling.Integral body is put into ventilation cock body 1 after the assembling.Then cover breather plug block 2 at ventilation cock body 1, evenly rush at last 2 of rivetings in the groove position of breather plug 1 and fix, be i.e. Fig. 1 sequence number 7 places.
Preferably select the fluid that splashes away from gearbox when this breather plug is installed or with the oil baffle isolation, place sealing gasket at threaded joints during installation, tighten by the flat filament 8 that mills out on the ventilation cock body, prevent that breather plug is loosening.
The working principle of this breather plug is: air-fuel mixture gas stops that by the first layer of baffle plate 5 rear arrival breather plug is inner in the gearbox, after the multiple maze-type structure that grease baffle 4 forms stops, most of oil is by grease baffle 4 and the absorption of breather plug 1 inwall in the mixed gas, then the breach that mills out by ventilation cock body 1 top of gas flows out from spline shape 2 indentation, there of blocking a shot.And by the lubricant oil of grease baffle 4 and breather plug 1 inwall absorption, be accumulated to a certain degree after again automatic back flow to gearbox casing.
The utility model mainly is to adopt maze-type structure in described ventilation cock body, in the ventilation cock body the semicircle grease baffle that has two groups of interlaced arrangement at least is set, 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 simply and easily characteristics.
The utility model adopts narrow meshed baffle plate in described 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 described in the utility model adopts the spline profile, and it can well be ventilated, and can prevent that again outside dirt from entering or stopping up breather plug passage, beautiful shape simultaneously.
Claims (3)
1. speed changer breather plug, it mainly is comprised 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), described grease baffle (4) directly is inserted on the interior grease baffle post (3) of ventilation cock body (1).
2. speed changer breather plug according to claim 1 is characterized in that described ventilation cock body (1) bottom adopts narrow meshed baffle plate (5), and its outside is fixed on the described ventilation cock body (1) with back-up ring (6) with the hole.
3. speed changer breather plug according to claim 1 and 2 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 by the sidewall setting of ventilation cock body (1) rushes rivet clasp and decides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220423661.1U CN202833986U (en) | 2012-08-24 | 2012-08-24 | Breather plug for speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220423661.1U CN202833986U (en) | 2012-08-24 | 2012-08-24 | Breather plug for speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833986U true CN202833986U (en) | 2013-03-27 |
Family
ID=47945695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220423661.1U Expired - Lifetime CN202833986U (en) | 2012-08-24 | 2012-08-24 | Breather plug for speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833986U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840311A (en) * | 2012-08-24 | 2012-12-26 | 杭州前进齿轮箱集团股份有限公司 | Ventilation plug used for transmission |
-
2012
- 2012-08-24 CN CN201220423661.1U patent/CN202833986U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840311A (en) * | 2012-08-24 | 2012-12-26 | 杭州前进齿轮箱集团股份有限公司 | Ventilation plug used for transmission |
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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 |
Granted publication date: 20130327 |
|
| CX01 | Expiry of patent term |