CN104235327B - A kind of closed porous plug of positive displacement for storage tanks such as gear-box, fuel tanks - Google Patents
A kind of closed porous plug of positive displacement for storage tanks such as gear-box, fuel tanks Download PDFInfo
- Publication number
- CN104235327B CN104235327B CN201310522220.6A CN201310522220A CN104235327B CN 104235327 B CN104235327 B CN 104235327B CN 201310522220 A CN201310522220 A CN 201310522220A CN 104235327 B CN104235327 B CN 104235327B
- Authority
- CN
- China
- Prior art keywords
- cock body
- gear
- box
- piston
- communicating pipe
- 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
- 239000002828 fuel tank Substances 0.000 title claims abstract description 29
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 13
- 210000002445 nipple Anatomy 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 238000002955 isolation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 12
- 239000003921 oil Substances 0.000 description 8
- 239000000428 dust Substances 0.000 description 7
- 230000029058 respiratory gaseous exchange Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/22—Safety features
- B65D90/32—Arrangements for preventing, or minimising the effect of, excessive or insufficient pressure
- B65D90/34—Venting means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The invention discloses a kind of closed porous plugs of the positive displacement for storage tanks such as gear-box, fuel tanks, including cock body, the nipple of cock body lower part, nipple is equipped with into and out of stomata, piston rod and piston are equipped in cock body, lower communicating tube and upper communicating pipe were provided on the side wall of the cock body, the lower communicating tube is connected by suction hole with cock body, the upper communicating pipe is connected by gas vent with cock body, described one end of upper communicating pipe is equipped with opening, and the lower communicating tube is an enclosure space.Can thus accomplish gear-box, the gas in fuel tank storage tank to a certain extent with the isolation of outside air.And the configuration of the present invention is simple, high reliablity is at low cost, non-maintaining.
Description
Technical field
The present invention relates to a kind of gear-box, the component of fuel tank, the ventilative dress on gear-box, fuel tank is precisely applied
It sets.
Background technique
Porous plug is as closed case such as gear-boxes but needs to balance the appurtenances of internal and external pressure difference, has and answers extensively
With.Traditional porous plug is made of the parts such as cock body and the filter screen being arranged on cock body, in use, box house
Gas and ambient atmosphere by directly communication outside the duct of very little on cock body and case, by filter screen in air dust and dirt
Object is filtered.
There are the following problems in practical applications for traditional gas permeable plug:
1) the inside and outside duct by very little of cabinet is in long logical state, be easy to cause the pollution of box house, and for a long time
It uses, dust and dirt are adhered on filter screen, deposited, and the airing function of porous plug will be directly affected when serious.
2) when equipment works or stops working, when air pressure is lower than external pressure in cabinet, rainwater, the tide in gas are sucked
Humid air, dust etc. can enter box house, easily cause the corrosion of gear and bearing and lubricating oil water inlet rotten.
Application No. is 200920255682.5, the applying date is that the patent of invention self-balancing on November 25th, 2009 is two-way ventilative
Plug.When having certain pressure difference inside and outside cabinet, spool selectively slides under the action of pressure difference, and high pressure gas is discharged by channel；
Or ambient atmos enter cabinet by channel.Waterproof and dustproof is realized by valve body and channel.
Above-mentioned technical proposal the problem is that valve body channel space very little, suction is difficult to avoid that in gas exchange process
Enter rainwater, humid air, the dust etc. in gas.The gas of sucking can enter box house, easily cause the rust of gear and bearing
Erosion and lubricating oil water inlet are rotten.
It is closed ventilative that the technical problem to be solved in the present invention is to provide a kind of positive displacements for storage tanks such as gear-box, fuel tanks
Plug, the device thoroughly can effectively avoid rainwater, humid air, dust etc. in sucking gas, and present apparatus structure letter
Single, high reliablity is at low cost, can be non-maintaining in use process.
Summary of the invention
In order to solve the above technical problems, a kind of positive displacement for storage tanks such as gear-box, fuel tanks of the invention is closed ventilative
Plug, including cock body, the nipple of cock body lower part, nipple are equipped with into and out of stomata, and cock body is interior to be equipped with piston rod and work
It filled in, lower communicating tube and upper communicating pipe was provided on the side wall of cock body, lower communicating tube is connected by suction hole with cock body, upper communicating pipe
It is connected by gas vent with cock body, upper communicating pipe one end is equipped with opening, and lower communicating tube is an enclosure space.
Gas vent has 2, and the distance between 2 gas vents are identical as the thickness of piston, and gas vent is set as 2 and is vented
The distance between hole and identical as the thickness of piston, can guarantee the smooth progress of exhaust process.
As the further improvement to the technical program, suction hole has 2, the distance between 2 suction holes and piston
Thickness is identical.During air-breathing, the gas above cock body inner piston entered behind the lower section of piston by 2 suction holes again into
Enter the storage tanks such as gear-box, fuel tank.Being directly sucked in for outside air can effectively be avoided.
As the further improvement to the technical program, the top of upper communicating pipe is connected by gas vent with cock body, upper company
The bottom of siphunculus is equipped with opening, is long and narrow space between the top and bottom.Gas vent is located at the top of communicating pipe, opens
Mouth is in the bottom of upper communicating pipe, and in exhaust with breathing process, outside air can be essentially defined in the space in communicating pipe
It is interior.It is further ensured that and guarantees that the gas exchanges of the storage tanks such as cock body and gear-box, fuel tank do not suck extraneous air, to avoid dust
And the sucking deposition of impurity.
As the further improvement to the technical program, the volume of upper communicating pipe is 3-5 times of lower communicating tube volume.Upper company
The volume of siphunculus is that the several times of lower communicating tube volume can be effective in the gas exchanges of the storage tanks such as cock body and gear-box, fuel tank
The air that ground avoids sucking extraneous deposits to avoid the sucking of dust and impurity.
As the further improvement to the technical program, cock body is equipped with upper cover, upper cover central part have upwardly extend it is convex
Platform, boss connect piston rod, and upper cover passes through O-ring seal and plug airtight connection.Upper cover is provided with boss, it is ensured that piston
The stability of the fixation of bar.It can guarantee the air-tightness of cock body by crossing O-ring seal and cock body airtight connection.
As the further improvement to the technical program, piston outer rim and cock body connecting place are equipped with sliding sleeve.Setting sliding
Set can make piston smaller in the intracorporal movable resistance of plug, more flexible.
As the further improvement to the technical program, piston and centre are equipped with oil sealing, are equipped with hole below oil sealing
Use retaining ring.Oil sealing and hole retaining ring can prevent the oil gas of exhaust process from flowed back into the storage tanks such as gear-box, fuel tank again, prevent oil
The loss of liquid.
As the further improvement to the technical program, the upper surface of piston be equipped with upper spring and lower spring separately below；
Upper spring and lower spring are socketed on the piston rod, the upper cover of cock body position difference corresponding with upper spring and lower spring with bottom
Equipped with upper limit set and lower limit set.It can guarantee piston with lower limit set by setting upper spring and lower spring and upper limit set
The flexibility and reliability of movement, guarantee exhaust are gone on smoothly with breathing process.
The beneficial effect of the technical program is: due to setting by be provided on the side wall of cock body lower communicating tube with it is upper
Communicating pipe, and lower communicating tube is connected by suction hole with cock body, upper communicating pipe is connected by gas vent with cock body, upper communicating pipe one
End is equipped with opening, and lower communicating tube is an enclosure space.For above structure in exhaust, filling in intracorporal gas can be by the sky of cock body
Chamber was discharged by upper communicating pipe again.Gas when air-breathing in upper communicating pipe first flows back to cock body, while filling in intracorporal gas and passing through again
It crosses down interface channel and enters gear-box, fuel tank storage tank.That is, technical solution of the present invention, the gas of gear-box, fuel tank storage tank
Body will not be exchanged directly with ambient atmos；The opening of upper communicating pipe is limited at the position that ambient atmos swap.This
Sample can accomplish gear-box, the gas in fuel tank storage tank to a certain extent with the isolation of outside air.And structure of the invention
Simply, high reliablity, it is at low cost, it is non-maintaining.
Detailed description of the invention:
Fig. 1 is cross-sectional view of the invention.
Description of symbols: 1- air inlet/outlet, 2- nipple, 3- cock body, 4- lower communicating tube, 5- suction hole,
6- upper communicating pipe, 7- gas vent, 8-O type sealing ring, 9- upper limit set, 10- upper cover, 11- piston rod, the upper bullet of 12-
Spring, 13- oil sealing, the hole 14- retaining ring, 15- piston, 16- sliding sleeve, spring under 17-, 18- lower limit set.
Specific embodiment
Connection with figures makees progress detailed description to the present invention below.
Fig. 1 is engaged it is found that a kind of closed porous plug of positive displacement for storage tanks such as gear-box, fuel tanks of the invention, including
Cock body 3, the nipple 2 of 3 lower part of cock body, nipple 2 are equipped with air inlet/outlet 1, are equipped with piston rod 11 and piston in cock body 3
15, lower communicating tube 4 and upper communicating pipe 6 were provided on the side wall of cock body 3, lower communicating tube 4 is connected by suction hole 5 with cock body 3, on
Communicating pipe 6 is connected by gas vent 7 with cock body 3, and upper 6 one end of communicating pipe is equipped with opening, and lower communicating tube 4 is an enclosure space.
Gas vent 7 has 2, and the distance between 2 gas vents are identical as the thickness of piston 15.Suction hole 5 has 2,2 suctions
The distance between stomata 5 is identical as the thickness of piston 15.
The top of upper communicating pipe 6 is connected by gas vent 7 with cock body 3, and the bottom of upper communicating pipe 6 is equipped with opening, the top
It is long and narrow space between portion and bottom.The volume of upper communicating pipe 6 is 3-5 times of 4 volume of lower communicating tube.
Cock body 3 is equipped with upper cover 10, and 10 central part of upper cover has the boss upwardly extended, and boss connects piston rod 11, upper cover
10 pass through O-ring seal 8 and 3 airtight connection of cock body.
15 outer rim of piston and 3 connecting place of cock body are equipped with sliding sleeve 16.Piston 15 and centre
Equipped with oil sealing 13, hole retaining ring 14 is equipped with below oil sealing 13.The upper surface of piston 15 with separately below be equipped with upper bullet
Spring 12 and lower spring 17；Upper spring 12 and lower spring 17 are socketed on piston rod 11, the upper cover 10 and bottom and upper spring of cock body 3
12 and the corresponding position of lower spring 17 be respectively equipped with upper limit set 9 with lower limit set 18.When work, piston 15 can be in cock body
It is moved up and down in 3.
When gear-box, fuel tank storage tank in air pressure be higher than ambient pressure when, piston 15 rises under the action of draught head,
Gas in storage tank is upwardly into cock body 3 by air inlet/outlet 1；Piston 15 continues to rise, and occurs until squeezing upper spring 12
Elastic deformation stops rising when being hindered by upper limit set 9 and remain stationary；Simultaneously because 15 lower edge position of piston is higher than exhaust
The lower gas vent in hole 7, the gas in cock body 3 are discharged after entering upper communicating pipe 6 by the lower gas vent of gas vent 7.Exhaust is completed
Afterwards, piston 15 is moved downward in 12 elastic reaction of upper spring, and piston 15 is finally static in equilbrium position, and exhaust process finishes.
When gear-box, fuel tank storage tank in air pressure be higher than ambient pressure when, piston 15 moves down under the action of draught head, directly
Elastic deformation occurs to crowded dead spring 17, stops moving downward and remaining stationary when being hindered by lower limit set 18；While by
It is lower than the upper suction hole of suction hole 5 in 15 upper marginal position of piston, the gas on 3 internal piston of cock body, 15 top passes through suction hole 5
Upper suction hole enter in lower communicating tube 4, the lower section of the piston 15 in cock body 3 is then entered by the lower suction hole of suction hole 5, then
Air inlet/outlet 1 is passed downwardly through to enter in storage tank.After air-breathing is complete, piston 15 is moved upwards in lower 17 elastic reaction of spring, piston
15 is finally static in equilbrium position.Breathing process finishes.
By exhaust process several times and breathing process, the volume change of the gas in gear-box, fuel tank storage tank of piston 15
Under the action of rest on an optimum balance position, in later work, as long as the dischargeable capacity of porous plug is greater than in storage tank
The volume change of gas, piston 15 move up and down near equilbrium position, receive and be discharged gear-box, the gas in fuel tank storage tank
Body, since lower communicating tube 4 is located at the lower part of cock body 3, and the gas for entering cock body 3 is in lower communicating tube 4, such gear-box,
Boundary's exhaust would not be directed out in fuel tank storage tank again, air-breathing carries out gas exchanges.Accomplish gear-box, the gas in fuel tank storage tank
To a certain extent with the isolation of outside air.The configuration of the present invention is simple, high reliablity is at low cost, non-maintaining.
The above specific embodiment not makes any form of restriction inventive technique scheme, if not departing from the present invention
In technical proposal scope, the equivalent reality that technically part is changed or modified made by technical solution of the present invention disclosure is utilized
It applies, still falls in the scope of protection of the invention.
Claims (7)
1. a kind of closed porous plug of positive displacement for gear-box or fuel tank storage tank, including cock body, the nipple of cock body lower part,
Nipple is equipped with into and out of stomata, and cock body is interior to be equipped with piston rod and piston, it is characterised in that: on the side wall of the cock body
It was provided with lower communicating tube and upper communicating pipe, the lower communicating tube is connected by suction hole with cock body, and the upper communicating pipe is logical
It crosses gas vent to be connected with cock body, the gas vent has 2, and the distance between 2 gas vents are identical as the thickness of piston, described
One end of upper communicating pipe be equipped with opening, the lower communicating tube is an enclosure space, the upper surface of described piston with following point
It She You not upper spring and lower spring.
2. the positive displacement closed porous plug according to claim 1 for gear-box or fuel tank storage tank, it is characterised in that: institute
The suction hole stated has 2, and the distance between the 2 described suction holes are identical as the thickness of piston.
3. the positive displacement according to claim 1 described in -2 any claims for gear-box or fuel tank storage tank is closed ventilative
Plug, it is characterised in that: the top of the upper communicating pipe is connected by gas vent with cock body, and the bottom of the upper communicating pipe is set
There is opening, is long and narrow space between the top and bottom.
4. the positive displacement closed porous plug according to claim 3 for gear-box or fuel tank storage tank, it is characterised in that: institute
The volume for the upper communicating pipe stated is 3-5 times of lower communicating tube volume.
5. the positive displacement closed porous plug according to claim 4 for gear-box or fuel tank storage tank, it is characterised in that: institute
The cock body stated is equipped with upper cover, and the upper cover central part has the boss upwardly extended, and the boss connects piston rod, described
Upper cover pass through O-ring seal and cock body airtight connection.
6. the positive displacement closed porous plug according to claim 5 for gear-box or fuel tank storage tank, it is characterised in that: institute
The piston outer rim and cock body connecting place stated are equipped with sliding sleeve.
7. the positive displacement closed porous plug according to claim 6 for gear-box or fuel tank storage tank, it is characterised in that: institute
The piston stated and centre are equipped with oil sealing, are equipped with hole retaining ring below the oil sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310522220.6A CN104235327B (en) | 2013-10-30 | 2013-10-30 | A kind of closed porous plug of positive displacement for storage tanks such as gear-box, fuel tanks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310522220.6A CN104235327B (en) | 2013-10-30 | 2013-10-30 | A kind of closed porous plug of positive displacement for storage tanks such as gear-box, fuel tanks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104235327A CN104235327A (en) | 2014-12-24 |
| CN104235327B true CN104235327B (en) | 2019-07-26 |
Family
ID=52223985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310522220.6A Expired - Fee Related CN104235327B (en) | 2013-10-30 | 2013-10-30 | A kind of closed porous plug of positive displacement for storage tanks such as gear-box, fuel tanks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104235327B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692320A (en) * | 2020-06-18 | 2020-09-22 | 郭爱贵 | Multifunctional high-speed gear box for turboshaft engine test |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58124806A (en) * | 1982-01-20 | 1983-07-25 | Oil Drive Kogyo Kk | Flow control valve |
| DE4224611A1 (en) * | 1992-07-25 | 1994-01-27 | Westfalia Becorit Ind Tech | Mining machine gearbox housing breather filter - has sintered piston to provide warning of blockage or pending failure |
| CN201593601U (en) * | 2009-11-25 | 2010-09-29 | 赵大庆 | Self-balancing bidirectional vent plug |
| CN201696397U (en) * | 2010-07-08 | 2011-01-05 | 南京讯联液压件有限公司 | Pre-compressed air cleaner |
| CN203548829U (en) * | 2013-10-30 | 2014-04-16 | 莱州市盛乐机械有限公司 | Positive displacement airtight vent plug for storage tanks such as gear box and oil tank |
-
2013
- 2013-10-30 CN CN201310522220.6A patent/CN104235327B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58124806A (en) * | 1982-01-20 | 1983-07-25 | Oil Drive Kogyo Kk | Flow control valve |
| DE4224611A1 (en) * | 1992-07-25 | 1994-01-27 | Westfalia Becorit Ind Tech | Mining machine gearbox housing breather filter - has sintered piston to provide warning of blockage or pending failure |
| CN201593601U (en) * | 2009-11-25 | 2010-09-29 | 赵大庆 | Self-balancing bidirectional vent plug |
| CN201696397U (en) * | 2010-07-08 | 2011-01-05 | 南京讯联液压件有限公司 | Pre-compressed air cleaner |
| CN203548829U (en) * | 2013-10-30 | 2014-04-16 | 莱州市盛乐机械有限公司 | Positive displacement airtight vent plug for storage tanks such as gear box and oil tank |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104235327A (en) | 2014-12-24 |
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Granted publication date: 20190726 |