CN205423356U - Pressurization formula hydraulic tank respirator - Google Patents
Pressurization formula hydraulic tank respirator Download PDFInfo
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- CN205423356U CN205423356U CN201620147895.6U CN201620147895U CN205423356U CN 205423356 U CN205423356 U CN 205423356U CN 201620147895 U CN201620147895 U CN 201620147895U CN 205423356 U CN205423356 U CN 205423356U
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- valve body
- valve
- spool
- valve seat
- oil tank
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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model relates to a pressurization formula hydraulic tank respirator belongs to the oil tank breather field, including installing the valve body on the oil tank, the outside threaded connection in valve body upper end has a disk seat, and the disk seat is equipped with the filter core with valve body outside cover, is equipped with retaining ring, spring holder I in the valve body inner chamber, pressure regulating spring, valve barrel and case admit air. Spring holder I in the valve body is fixed in valve body ladder inner chamber by the retaining ring, and tight valve barrel is tightly pushed up in spring holder I, upper end in the pressure regulating spring lower extreme that admits air top, and the case is arranged in valve body upper portion ladder hole, is equipped with exhaust pressure regulating spring on the disk seat inner chamber between bottom and the case top. The utility model discloses when the oil tank internal pressure was higher than the setting value, the sealing conical face between case and the valve barrel was opened to the voltol oil gas cap, got into the case top through the aperture in the case, gaseously discharge through aperture around the disk seat and filter core, and fluid can be along valve body, case inner wall, flowed back to the oil tank through the inside aperture of case, and it is outside to guarantee that fluid can not flow the oil tank.
Description
Technical field
The utility model belongs to oil tank breather field, is specifically related to a kind of pressurized hydraulic oil tank breather.
Background technology
Respirator typically it is fitted with at engineering truck hydraulic oil container, to ensure fuel tank internal and external air currents, and avoid hydraulic systems and components work or bigger normal pressure or negative pressure will not be produced in fuel tank during hydraulic oil container inner fluid temperature change, while ensureing that oil hydraulic oil container inner air and outer air is unimpeded, hydraulic oil in hydraulic oil container to be prevented is sprayed onto outside, and utilizes filter to stop the pollutant entrance fuel tank internals such as the dust outside hydraulic oil container.
Respirator generally can be divided into two kinds, a kind of is non-pressurised common respirator, fuel tank external and internal pressure is identical, such as practical novel C N202732514U, this technical scheme solves fluid leakage problems mainly by annular gear oil cap, simple in construction, with low cost, but owing to respirator inner air and outer air pressure is identical, so technical scheme cannot use on pressurized hydraulic fuel tank；Another kind is the respirator of adding pressure type, or it is prepressing type respirator, allow tank pressure higher than external air pressure, such as practical novel C N202012514U, provide a kind of band exhaust pre-compressed air cleaner, air bleeding valve is installed rubber cushion, air inlet or exhaust check valve is done by spring compression rubber cushion, mist of oil and oil droplet and air filtration can be reclaimed, shortcoming is, easily produce aging due to rubber cushion, hardening, the Problem of Failure such as deformation, thus lose normal air circulation effect, compressible deformation characteristics additionally, due to rubber product itself, air inlet or pressure at expulsion spring can be made to set inaccurate, so that fuel tank air inlet or pressure at expulsion set inaccurate.
Utility model content
The purpose of this utility model is to provide a kind of pressurized hydraulic oil tank breather, utilize spring regulating oil tank inside and outside differential pressure, both can ensure that hydraulic oil container inner air and outer air normally circulated, can also be effectively ensured in the hydraulic oil flow oil return box of hydraulic oil container ejection, prevent hydraulic oil to be sprayed onto the pollutants such as hydraulic oil container outside and external dust and enter fuel tank.
The utility model pressurized hydraulic oil tank breather, including the valve body being arranged on fuel tank, valve body upper end external screw-thread connects valve seat, valve seat and valve body outer sheath are equipped with filter core, being respectively equipped with O one and O two with valve seat, filter core lower surface with valve body inside filter core, filter core periphery is provided with net metal support and is fixed；The shell body mated with filter core and valve seat is fixed on valve seat by jump ring, is provided with back-up ring, spring base I, air inlet pressure spring, valve pocket and spool in body cavity；Spring base I in valve body is fixed in valve body step inner cavity by back-up ring, air inlet pressure spring lower end holds out against and holds out against valve pocket in spring base I, upper end, valve pocket upper end endoporus is combined closely with spool lower end male cone (strobilus masculinus), spool is positioned in the ladder endoporus of valve body top, exhaust pressure spring it is provided with between valve base cavity upper bottom portion and spool top, spool has endoporus a, endoporus a and connects the body cavity at valve pocket top.
It is provided with O three between described spool and valve pocket periphery and body cavity, thus eliminates the gap between spool and the periphery of valve pocket and valve body inner bore.
Described spool is positioned in the ladder endoporus of valve body top, and valve body shoulder hole top diameter of bore is big, and aperture, bottom is little, and spool can rise position-limiting action, and exhaust pressure spring is pressed on spool on valve body.
It is provided with between described exhaust pressure spring and valve base cavity upper bottom portion and holds out against spring base, described valve seat threaded upper ends connects regulation bolt, regulation bolt is screwed into downwards and spring base II can be promoted to move down, setting height(from bottom) with regulation exhaust pressure spring, it is provided with locking nut on regulation bolt, it is provided with seal washer between locking nut and valve seat, prevents oil gas from leaking.
Described valve seat periphery is provided with through hole b, circulates for fuel tank inner air and outer air.
The utility model compared with prior art, has the advantages that
(1), the utility model is pressurized hydraulic oil tank breather, when tank pressure is higher than setting value, high-pressure oil gas backs down the sealing cone between spool and valve pocket, spool top is entered by the aperture in spool, gas is discharged by the aperture around valve seat and filter core, and fluid can flow back to fuel tank along valve body, spool inwall through valve core inside aperture, it is ensured that fluid will not flow to outside fuel tank.
(2), when tank pressure is less than setting value or generation negative pressure, extraneous air is through filter element filtering, by spool medial small hole, backs down valve pocket, enters fuel tank, it is ensured that tank internal pressure meets requirement.
(3), the utility model air inlet, exhaust all by the sealing cone of spool and valve pocket composition, the spool at conical surface two ends, valve pocket all have spring top clamping, simple in construction, reliability height.
(4), the utility model top be provided with regulation bolt, exhaust pressure spring setting height(from bottom) can be adjusted, thus regulate pressure at expulsion setting value, fuel tank internal different pressures can be met and set demand.
(5), the utility model China and foreign countries housing be installed together with valve seat by jump ring, pull down jump ring, i.e. can unload shell body and filter core, it is simple to the inspection of filter core or replacing.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation；
In figure: 1, regulation bolt, 2, locking nut, 3, valve seat, 4, jump ring, 5, shell body, 6, filter core, 7, spool, 8, valve body, 9, valve pocket, 10, air inlet pressure spring, 11, spring base I, 12, seal washer, 13, spring base II, 14, exhaust pressure spring, 15, O one, 16, O two, 17, O three, 18, back-up ring, 19, endoporus a, 20, through hole b.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is further described.
Pressurized hydraulic oil tank breather as shown in Figure 1, including the valve body 8 being arranged on fuel tank, valve body 8 upper end external screw-thread connects valve seat 3, valve seat 3 and valve body 8 outer sheath are equipped with filter core 6, being respectively equipped with O 1 and O 2 16 with valve seat 3, filter core 6 lower surface with valve body 8 inside filter core 6, filter core 6 periphery is provided with net metal support and is fixed；The shell body 5 mated with filter core 6 and valve seat 3 is fixed on valve seat 3 by jump ring 4, is provided with back-up ring 18, spring base I 11, air inlet pressure spring 10, valve pocket 9 and spool 7 in valve body 8 inner chamber；Spring base I 11 in valve body 8 is fixed in valve body 8 step inner cavity by back-up ring 18, air inlet pressure spring 10 lower end holds out against and holds out against valve pocket 9 in spring base I 11, upper end, valve pocket 9 upper end endoporus is combined closely with spool 7 lower end male cone (strobilus masculinus), spool 7 is positioned in the ladder endoporus of valve body 8 top, exhaust pressure spring 14 it is provided with between valve seat 3 inner chamber upper bottom portion and spool 7 top, spool 7 has endoporus a19, endoporus a19 and connects valve body 8 inner chamber at valve pocket 9 top.
It is provided with O 3 17 between spool 7 and valve pocket 9 periphery and valve body 8 inner chamber, thus eliminates the gap between spool 7 and the periphery of valve pocket 9 and valve body 8 endoporus.
Spool 7 is positioned in the ladder endoporus of valve body 8 top, and valve body 8 shoulder hole top diameter of bore is big, bottom diameter of bore is little, and spool 7 can rise position-limiting action, and exhaust 14 spools 7 of pressure spring are pressed on valve body 8.
It is provided with spring base II 13 between exhaust pressure spring 14 and valve seat 3 inner chamber upper bottom portion, valve seat 3 threaded upper ends connects regulation bolt 1, regulation bolt 1 is screwed into downwards and spring base II 13 can be promoted to move down, setting height(from bottom) with regulation exhaust pressure spring 14, it is provided with locking nut 2 on regulation bolt 1, it is provided with seal washer 12 between locking nut 2 and valve seat 3, prevents oil gas from leaking.
Valve seat 3 periphery is provided with through hole b20, circulates for fuel tank inner air and outer air.
The utility model pressurized hydraulic oil tank breather, when tank pressure is higher than setting value, in fuel tank, gas push spool 7 moves up；Owing to valve body 8 inner chamber is at valve pocket 9 upper end limited location, now the conical surface seal between spool 7 and valve pocket 9 lost efficacy, in fuel tank, gas is discharged by the taper hole in the middle of valve pocket 9, and the endoporus a19 in spool 7 enters the space between spool 7 and valve seat 3, and fluid is along valve seat 3 and spool 7 inwall, return to fuel tank through endoporus a19 and valve pocket 9 endoporus；And gas passes through through hole b20 and the filter core 6 of valve seat 3 side, through shell body 5 lower end, outlet is discharged.
When fuel tank internal gas pressure is less than setting value or generation negative pressure, fuel tank extraneous air is through shell body 5 lower port, endoporus a19 in the middle of filtration core 6, the through hole b20 of valve seat 3 side, spool 7 enters valve body 8 inner chamber, valve pocket 9 is promoted to move down, now spool 7 lost efficacy with valve pocket 9 conical surface seal, and extraneous air enters in fuel tank.
In sum, the utility model is when tank pressure is higher than setting value, high-pressure oil gas backs down the sealing cone between spool and valve pocket, spool top is entered by the aperture in spool, gas is discharged by the aperture around valve seat and filter core, and fluid can flow back to fuel tank along valve body, spool inwall through valve core inside aperture, it is ensured that fluid will not flow to outside fuel tank；The spool at conical surface two ends, valve pocket all have spring top clamping, simple in construction, and reliability is high.And exhaust pressure spring setting height(from bottom) can be adjusted, thus regulate pressure at expulsion setting value, fuel tank internal different pressures can be met and set demand.Shell body is installed together with valve seat by jump ring, pulls down jump ring, i.e. can unload shell body and filter core, it is simple to the inspection of filter core or replacing.
Claims (5)
1. a pressurized hydraulic oil tank breather, including the valve body (8) being arranged on fuel tank, valve body (8) upper end external screw-thread connects valve seat (3), valve seat (3) and valve body (8) outer sheath are equipped with filter core (6), filter core (6) inner side is respectively equipped with O one (15) and O two (16) with valve seat (3), filter core (6) lower surface with valve body (8), and filter core (6) periphery is provided with net metal support and is fixed；nullThe shell body (5) mated with filter core (6) and valve seat (3) is fixed on valve seat (3) by jump ring (4)，It is characterized in that valve body (8) inner chamber is provided with back-up ring (18)、Spring base I (11)、Air inlet pressure spring (10)、Valve pocket (9) and spool (7)，Spring base I (11) in valve body (8) is fixed in valve body (8) step inner cavity by back-up ring (18)，Air inlet pressure spring (10) lower end holds out against at spring base I (11)、Upper end holds out against valve pocket (9)，Valve pocket (9) upper end endoporus is combined closely with spool (7) lower end male cone (strobilus masculinus)，Spool (7) is positioned in the ladder endoporus of valve body (8) top，Exhaust pressure spring (14) it is provided with between valve seat (3) inner chamber upper bottom portion and spool (7) top，Spool (7) has endoporus a (19)，Valve body (8) inner chamber at endoporus a (19) connection valve pocket (9) top.
Pressurized hydraulic oil tank breather the most according to claim 1, it is characterised in that be provided with O three (17) between described spool (7) and valve pocket (9) periphery and valve body (8) inner chamber.
Pressurized hydraulic oil tank breather the most according to claim 1 and 2, it is characterized in that described spool (7) is positioned in the ladder endoporus of valve body (8) top, valve body (8) shoulder hole top diameter of bore is big, bottom diameter of bore is little.
Pressurized hydraulic oil tank breather the most according to claim 1, it is characterized in that being provided with spring base II (13) between described exhaust pressure spring (14) and valve seat (3) inner chamber upper bottom portion, described valve seat (3) threaded upper ends connects regulation bolt (1), it is provided with locking nut (2) in regulation bolt (1), between locking nut (2) and valve seat (3), is provided with seal washer (12).
5. according to the pressurized hydraulic oil tank breather described in claim 1 or 4, it is characterised in that described valve seat (3) periphery is provided with through hole b (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620147895.6U CN205423356U (en) | 2016-02-27 | 2016-02-27 | Pressurization formula hydraulic tank respirator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620147895.6U CN205423356U (en) | 2016-02-27 | 2016-02-27 | Pressurization formula hydraulic tank respirator |
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| CN205423356U true CN205423356U (en) | 2016-08-03 |
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| CN201620147895.6U Active CN205423356U (en) | 2016-02-27 | 2016-02-27 | Pressurization formula hydraulic tank respirator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106268517A (en) * | 2016-08-12 | 2017-01-04 | 胡海潮 | The pressure regulation reactor prepared for Entecavir |
| CN106763948A (en) * | 2017-02-20 | 2017-05-31 | 广西玉柴机器股份有限公司 | Respirator oil return valve |
| CN106763001A (en) * | 2016-12-27 | 2017-05-31 | 重庆缀盟科技有限公司 | A kind of combination valve for precommpression respirator |
| CN106763000A (en) * | 2016-12-27 | 2017-05-31 | 重庆优萃科技有限公司 | Breather for hydraulic oil tank pre-compression type centrifugal separating device |
| CN106837942A (en) * | 2016-12-27 | 2017-06-13 | 重庆优萃科技有限公司 | Breather for hydraulic oil tank centrifugal separating device |
| CN109083873A (en) * | 2018-09-25 | 2018-12-25 | 吉林大学 | A kind of type of respiration Oil-gas Separation hydraulic oil container and constant pressure control method |
-
2016
- 2016-02-27 CN CN201620147895.6U patent/CN205423356U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106268517A (en) * | 2016-08-12 | 2017-01-04 | 胡海潮 | The pressure regulation reactor prepared for Entecavir |
| CN106763001A (en) * | 2016-12-27 | 2017-05-31 | 重庆缀盟科技有限公司 | A kind of combination valve for precommpression respirator |
| CN106763000A (en) * | 2016-12-27 | 2017-05-31 | 重庆优萃科技有限公司 | Breather for hydraulic oil tank pre-compression type centrifugal separating device |
| CN106837942A (en) * | 2016-12-27 | 2017-06-13 | 重庆优萃科技有限公司 | Breather for hydraulic oil tank centrifugal separating device |
| CN106763000B (en) * | 2016-12-27 | 2018-08-28 | 徐州鑫贝克电力设备有限公司 | Breather for hydraulic oil tank pre-compression type centrifugal separating device |
| CN106763948A (en) * | 2017-02-20 | 2017-05-31 | 广西玉柴机器股份有限公司 | Respirator oil return valve |
| CN106763948B (en) * | 2017-02-20 | 2023-06-16 | 广西玉柴机器股份有限公司 | Respirator oil return valve |
| CN109083873A (en) * | 2018-09-25 | 2018-12-25 | 吉林大学 | A kind of type of respiration Oil-gas Separation hydraulic oil container and constant pressure control method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |