CN203962943U - For the nylon breather plug of speed changer - Google Patents
For the nylon breather plug of speed changer Download PDFInfo
- Publication number
- CN203962943U CN203962943U CN201420370218.1U CN201420370218U CN203962943U CN 203962943 U CN203962943 U CN 203962943U CN 201420370218 U CN201420370218 U CN 201420370218U CN 203962943 U CN203962943 U CN 203962943U
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- CN
- China
- Prior art keywords
- cushion block
- cock body
- breather plug
- gag
- elastic component
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- 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.)
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Abstract
The nylon breather plug for speed changer in a kind of lubricating fitting field, comprise: cock body, cushion block, elastic component and gag, wherein: the inner side of cock body is cavity structure and the through-hole structure being connected, and holds elastic component and cushion block in cavity structure, and the below of cavity structure is provided with some vents; The bottom of elastic component is provided with cushion block, and top contacts with gag, and gag is connected with cock body sealing.The utility model can the airtight body inside and outside air pressure of balance, reduce the lubrication oil consumption of system and prevent that external impurities from entering in casing, meanwhile, simple in structure, quality is light, easy for installation, with low cost and corrosion-resistant.
Description
Technical field
The utility model relates to the design of part in a kind of lubricating fitting field, specifically a kind of nylon breather plug for speed changer.
Background technique
For automobile, the axle housing of various gearboxes, commercial car back axle, other various machineries are sealed the chair mechanisms that contains gear gear motion of closing with speed reducer etc., when moving element running, can produce larger heat, cause the expansion of its enclosure interior air and gear oil, thereby make each closed box inside and extraneous draught head and the temperature difference of producing, can cause like this energy loss.In addition, the air in casing expands with heat and contract with cold, and can cause axle-shaft oil seal, input shaft oil seal, other each junction leakage of oils, makes the excessive wear of speed reducer Sealing.
Breather plug is that a kind of by the inner closed shell device being communicated with outside, its appearance has solved the problems referred to above, and its Main Function is: the firstth, the air in casing is communicated with ambient atmosphere, and play the effect of limit value air pressure inside; The secondth, dust in ambient atmosphere and water are blocked, the 3rd is outside the lubricant oil discharge casing stopping in inner mist of oil, reduces loss of lubrication, prevents atmosphere pollution.So ability ventilative, dustproof, that minimizing lubricant oil oozes out is to evaluate the important indicator of breather plug.
Existing breather plug mainly contains following two kinds: one, full hollow type breather plug, in case, establish vent, and the below of vent arranges oil baffle, to prevent that lubricant oil from discharging by vent; Two, loop-type breather plug, by complicated loop, stops oozing out of fluid and entering of outside foreign material.
Existing ventilation plug structure, can not well stop lubricant oil to discharge casing by vent, and outside foreign material can enter box house with air, and installs oil baffle additional and also can increase cost.In addition, the material of breather plug is all metal, and easily corrosion causes losing efficacy.
Through the retrieval of prior art is found, Chinese patent literature CN201824976, open day 2011.05.11, record a kind of ventilation plug for automobile drive axle, this breather plug comprises cock cap and the cock body with vent, in cock cap, be provided with spring, the inner side of the upper end of spring and cock cap upper end offsets, and the lower end of spring is pressed on a blanking cover pad on the upper-end surface of cock body vent; Cock cap and cock body tighten together by screw-thread fit, are provided with the groove that is communicated with cock cap inside and atmosphere in the threaded walls of cock body and/or cock cap.Because after aging and elastic force declines, only need screw slightly again cock cap, the cracking pressure of breather plug can be returned to original setting value when the spring of cock cap the inside.This technology cock cap is to be threaded with cock body, for the ease of regulating, can not tighten, and is jolted for a long time and vibrates, likely can get loose, and main body is metallic material, may corrosion, and production process complexity, manufacturing mechanism requires high, and single breather plug cost is high.
Model utility content
The utility model is for prior art above shortcomings, a kind of nylon breather plug for speed changer is proposed, can the airtight body inside and outside air pressure of balance, reduce the lubrication oil consumption of system and prevent that external impurities from entering in casing, meanwhile, simple in structure, quality is light, easy for installation, with low cost and corrosion-resistant.
The utility model is achieved through the following technical solutions, the utility model comprises: cock body, cushion block, elastic component and gag, wherein: the inner side of cock body is cavity structure and the through-hole structure being connected, and holds elastic component and cushion block in cavity structure, and the below of cavity structure is provided with some vents.
The bottom of described elastic component is provided with cushion block, and top contacts with gag, and gag is connected with cock body sealing.
Each described vent is evenly arranged in the outside of through-hole structure.
Top and the cushion block of each described vent join, and bottom communicates with external air.
Axially paralleling of the axial and through-hole structure of each described vent.
The outer upper of described cock body is polygonal screwing structure, and bottom is worm structure.
In the utility model, air-fuel mixture gas arrives cushion block by the through-hole structure of cock body in gearbox, and cushion block is normally closed structure, blocks air-fuel mixture gas to ooze out, and the inside that is back to gearbox after gas mixture by inwall is gathered in condensation simultaneously.
Cushion block of the present utility model can cover through-hole structure and each vent of outside simultaneously, and elastic component and gag, to the suitable pressure of cushion block, prevent that inner mist of oil from oozing out, and can external impurities enter gearbox simultaneously.
Brief description of the drawings
Fig. 1 is sectional view of the present utility model;
Fig. 2 is stereogram of the present utility model.
Embodiment
Below embodiment of the present utility model is elaborated; the present embodiment is implemented under taking technical solutions of the utility model as prerequisite; provided detailed mode of execution and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
Embodiment
As depicted in figs. 1 and 2, the present embodiment comprises: cock body 1, cushion block 2, elastic component 3 and gag 4, wherein: the inner side of cock body 1 is cavity structure 5 and the through-hole structure 6 being connected, and holds elastic component 3 and cushion block 2 in cavity structure 5, and the below of cavity structure 5 is provided with some vents 7.
The bottom of described elastic component 3 is provided with cushion block 2, and top contacts with gag 4, and gag 4 is connected with cock body 1 sealing, and the present embodiment adopts ultrasonic welding.
Each described vent 7 is evenly arranged in the outside of through-hole structure 6.
Top and the cushion block 2 of each described vent 7 join, and bottom communicates with external air, and vent 7 directions are downward, and opening is little, can stop that the foreign material such as extraneous rainwater dirt enter.
Axially paralleling of the axial and through-hole structure 6 of each described vent 7.
The outer upper of described cock body 1 is polygonal screwing structure, and bottom is worm structure; The screwing structure of the present embodiment is hexagonal structure, and worm structure adopts sealing gasket sealing while connection.
In the present embodiment, the spring that elastic component 3 is adjusted according to the Throughput of different gearboxes and leakage of oil for elastic force.Cushion block 2 is rubber material, and cock body 1 and gag 4 are made for nylon material, oil resistant and corrosion-resistant.
When installation, select the fluid that splashes away from gearbox or with oil baffle isolation, to prevent that a large amount of fluid from directly spilling.
Claims (5)
1. the nylon breather plug for speed changer, it is characterized in that, comprising: cock body, cushion block, elastic component and gag, wherein: the inner side of cock body is cavity structure and the through-hole structure being connected, in cavity structure, hold elastic component and cushion block, the below of cavity structure is provided with some vents;
The bottom of described elastic component is provided with cushion block, and top contacts with gag, and gag is connected with cock body sealing.
2. nylon breather plug according to claim 1, is characterized in that, each described vent is evenly arranged in the outside of through-hole structure.
3. nylon breather plug according to claim 1 and 2, is characterized in that, top and the cushion block of each described vent join, and bottom communicates with external air.
4. nylon breather plug according to claim 3, is characterized in that, each described vent axially and axially the paralleling of through-hole structure.
5. nylon breather plug according to claim 4, is characterized in that, the outer upper of described cock body is polygonal screwing structure, and bottom is worm structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420370218.1U CN203962943U (en) | 2014-07-04 | 2014-07-04 | For the nylon breather plug of speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420370218.1U CN203962943U (en) | 2014-07-04 | 2014-07-04 | For the nylon breather plug of speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203962943U true CN203962943U (en) | 2014-11-26 |
Family
ID=51923527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420370218.1U Active CN203962943U (en) | 2014-07-04 | 2014-07-04 | For the nylon breather plug of speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203962943U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508575A (en) * | 2016-01-04 | 2016-04-20 | 沃德传动（天津）股份有限公司 | Vent cap and speed reducer |
| CN107000196A (en) * | 2014-11-21 | 2017-08-01 | 喜利得股份公司 | Handheld tool driver locking device and hand held power machine |
-
2014
- 2014-07-04 CN CN201420370218.1U patent/CN203962943U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107000196A (en) * | 2014-11-21 | 2017-08-01 | 喜利得股份公司 | Handheld tool driver locking device and hand held power machine |
| US10562171B2 (en) | 2014-11-21 | 2020-02-18 | Hilti Aktiengesellschaft | Hand-held power tool transmission closure and hand-held power tool |
| CN105508575A (en) * | 2016-01-04 | 2016-04-20 | 沃德传动（天津）股份有限公司 | Vent cap and speed reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |