CN201582381U - Air-permeable plug - Google Patents
Air-permeable plug Download PDFInfo
- Publication number
- CN201582381U CN201582381U CN2010201146830U CN201020114683U CN201582381U CN 201582381 U CN201582381 U CN 201582381U CN 2010201146830 U CN2010201146830 U CN 2010201146830U CN 201020114683 U CN201020114683 U CN 201020114683U CN 201582381 U CN201582381 U CN 201582381U
- Authority
- CN
- China
- Prior art keywords
- air
- permeable
- permeability cell
- cap
- plug
- 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
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)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model relates to an air-permeable plug on an engineering machinery gearbox, which consists of an air-permeable cap, a clapboard, an air-permeable pipe and a box body. The air-permeable plug is characterized in that the air-permeable cap is connected with the air-permeable pipe by a thread; the circumference of the air-permeable pipe, close to the air-permeable cap, is uniformly provided with four small holes; the lower side of the air-permeable cap covers the four small holes of the air-permeable pipe; certain clearance is remained on the circumference; two identical clapboards are staggered as a labyrinth type and are welded at the other side of the air-permeable pipe; simultaneously, the external circumference at the side of the air-permeable pipe is fine machined and is connected with the air-permeable plug installation hole on the box body in an interference fit way, thus forming a labyrinth-type normally-open air-permeable plug. By adopting the structure, the air-permeable plug is simple to manufacture, is convenient for assembly, is air-permeable thoroughly, prevents dusts and has good oil-leakage resistance effect.
Description
Technical field
The utility model relates to a kind of porous plug that is applied on the construction machinery gear box.
Background technique
At present, porous plug mainly acts on the gas that produces in the gearbox operation process is in time discharged.Porous plug generally is divided into two kinds, a kind of is structure open in usual, a kind of unidirectional ventilation device for the band spring, promptly when the gearbox air pressure inside reached certain value, air pressure inside was backed down the interior spring of porous plug and outwards exhaust, and exterior object can not enter gearbox inside, but this structure is the time marquis of exhaust, directly join together by gas circuit inside and outside the gearbox, the inner fluid of gearbox is easy to scurry out outward along gas circuit, causes the outside seepage of fluid.
Summary of the invention
The purpose of this utility model provide a kind of make simple, easy to assembly, ventilative thoroughly, dust protection, the effective porous plug of seepage-proof oil.
The purpose of this utility model is achieved in that by ventilative cap, permeability cell, dividing plate, casing to be formed, ventilative cap is connected with permeability cell by screw thread, permeability cell is near even four apertures that distribute of ventilative cap side circumference, ventilative cap downside covers four apertures of permeability cell, and leaves out certain interval at circumference; Two identical dividing plates misplace into maze type and are welded on the permeability cell opposite side, carry out fine finishing on this side cylindrical of permeability cell simultaneously, are connected with interference fit with porous plug mounting hole on the casing.Form a kind of maze type porous plug open in usual, because the utility model adopts said structure, makes simple, easy to assembly, ventilative thorough, dust protection, seepage-proof oil is effective.
Description of drawings
Fig. 1 is a structural drawing of the present utility model.
1 ventilative cap, 2 dividing plates, 3 permeability cells, 4 casings among Fig. 1.
Embodiment
Embodiment: be made up of ventilative cap 1, dividing plate 2, permeability cell 3, permeability cell 3 one side circumference are four apertures of distribution evenly, two dividing plates 2 of opposite side dislocation welding, and the assembly after permeability cell 3 and dividing plate 2 welding becomes a kind of maze type structure.Ventilative cap 1 is connected with permeability cell 3 sides with holes by screw thread, ventilative simultaneously cap 1 downside covers four apertures on the permeability cell 3, and leave certain interval at the excircle of four apertures, ventilative like this cap 1 covers permeability cell 3, dust can't enter in the porous plug, dust protection is effective, and general structure adopts simple welding and machining just can realize, makes simple.
Gearbox is at duration of work not, and casing 4 internal gas directly and exterior form a ventilating structure open in usual, and are ventilative thorough; Gearbox is in operation process, because stirring of gearbox gear closed, casing 4 inner generations are higher than outside air pressure, gas in the casing 4 is under the inside and outside differential pressure effect, at first up by the maze type structure, then outward, outwards drain by the gap between ventilative cap 1 and the permeability cell 3 again by four apertures on the permeability cell 3; The maze type structure that fluid in the casing 4 can't be welded to form by permeability cell 3 and dividing plate 2 under action of gravity, and be stopped in the casing 4, seepage-proof oil is effective.Permeability cell 3 and casing 4 are connected with interference fit by fine finishing, and be easy to assembly.
Claims (1)
1. porous plug, form by ventilative cap, dividing plate, permeability cell, casing, it is characterized in that: ventilative cap is connected with permeability cell by screw thread, permeability cell is near even four apertures that distribute of ventilative cap side circumference, ventilative cap downside covers four apertures of permeability cell, and leaves out certain interval at circumference, and two identical dividing plates misplace into maze type and are welded on the permeability cell opposite side, carry out fine finishing on this side cylindrical of permeability cell simultaneously, be connected with interference fit with porous plug mounting hole on the casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201146830U CN201582381U (en) | 2010-01-26 | 2010-01-26 | Air-permeable plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201146830U CN201582381U (en) | 2010-01-26 | 2010-01-26 | Air-permeable plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201582381U true CN201582381U (en) | 2010-09-15 |
Family
ID=42724380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201146830U Expired - Fee Related CN201582381U (en) | 2010-01-26 | 2010-01-26 | Air-permeable plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201582381U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152713A (en) * | 2011-03-14 | 2011-08-17 | 广东富华重工制造有限公司 | Air plug structure of drive axle |
| CN102705835A (en) * | 2012-06-01 | 2012-10-03 | 无锡华光锅炉股份有限公司 | Large-caliber slag discharge pipe for circulating fluidized bed garbage boiler |
| CN103979074A (en) * | 2014-05-14 | 2014-08-13 | 沪东中华造船(集团)有限公司 | Water stop device of pipeline of ship |
-
2010
- 2010-01-26 CN CN2010201146830U patent/CN201582381U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152713A (en) * | 2011-03-14 | 2011-08-17 | 广东富华重工制造有限公司 | Air plug structure of drive axle |
| CN102705835A (en) * | 2012-06-01 | 2012-10-03 | 无锡华光锅炉股份有限公司 | Large-caliber slag discharge pipe for circulating fluidized bed garbage boiler |
| CN102705835B (en) * | 2012-06-01 | 2015-04-01 | 无锡华光锅炉股份有限公司 | Large-caliber slag discharge pipe for circulating fluidized bed garbage boiler |
| CN103979074A (en) * | 2014-05-14 | 2014-08-13 | 沪东中华造船(集团)有限公司 | Water stop device of pipeline of ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XUZHOU XUGONG TRANSMISSION TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: TECHNOLOGY BRANCH OF XCMG ENGINEERING MACHINERY CO., LTD. Effective date: 20150104 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150104 Address after: 221004 No. 8, blue mountain road, Xuzhou economic and Technological Development Zone, Jiangsu, China Patentee after: Xuzhou Xu work transmission Science and Technology Ltd. Address before: 221004 No. 8, Mount Blue Road, Xuzhou Economic Development Zone, Jiangsu, China Patentee before: Technology Branch of XCMG Engineering Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20170126 |