CN101776200B - Variable-pressure overflow valve used for lubricating - Google Patents
Variable-pressure overflow valve used for lubricating Download PDFInfo
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- CN101776200B CN101776200B CN2010101034793A CN201010103479A CN101776200B CN 101776200 B CN101776200 B CN 101776200B CN 2010101034793 A CN2010101034793 A CN 2010101034793A CN 201010103479 A CN201010103479 A CN 201010103479A CN 101776200 B CN101776200 B CN 101776200B
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- Prior art keywords
- overflow
- spool
- valve
- pressure
- valve body
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- 230000001050 lubricating effect Effects 0.000 title claims abstract description 15
- 239000000945 filler Substances 0.000 claims description 20
- 239000002828 fuel tank Substances 0.000 claims description 9
- 239000003921 oil Substances 0.000 description 22
- 239000004519 grease Substances 0.000 description 15
- 238000005461 lubrication Methods 0.000 description 10
- 239000010729 system oil Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The invention discloses a variable-pressure overflow valve used for lubricating, which comprises a valve body (8), a valve spool (3) and a spring (9), wherein the valve spool (3) is arranged in the valve body (8) in a sliding fit manner; one end of the valve body (8) is provided with an oil inlet (1), while the other end is connected with a pressure-regulating plug (10) by threads; one end of the spring (9) is pressed against the pressure-regulating plug (10) tightly, while the other end is pressed against the valve spool (3) tightly; an axial oil hole (2) is arranged in the valve spool (3); the oil inlet (1) can be communicated with an oil tank through the axial oil hole (2) and overflow holes; and the two overflow holes comprise a small overflow hole (6) and a large overflow hole (7) and are axially arranged on the valve body (8) or the valve spool (3). When the oil viscosity increases with the drop in temperature, the resistance generated by the small overflow hole increases to automatically increase the pressure of a lubricating system with the drop in temperature; and the large overflow hole cooperates with the spring force to serve as a maximum pressure-limiting mechanism of the lubricating system.
Description
Technical field
The present invention relates to the auto parts machinery field, specifically is a kind of variable-pressure overflow valve used for lubricating that is used for the lubrication system of automobile.
Background technique
For the wearing and tearing between the moving element that reduces vehicle, keep each inter-agency good operating condition, people must be lubricated to the moving element intermittent oiling in the vehicle, and relief valve is requisite component in the vehicle lubrication system.The lubricated of prior art comprises spool, spring and has the valve body of valve pocket with relief valve, be sliding combined with spool in the valve pocket, one end of valve body is provided with filler opening, the other end is bolted with the pressure regulation screw plug, spool is connected with the pressure regulation screw plug by spring, have one or more overflow holes that are positioned on the same radial section on the spool of relief valve or the valve body, have oilhole in the spool, described filler opening can communicate with fuel tank by this overflow hole and oilhole.But but there is following shortcoming in the lubricated of this structure with relief valve: because this relief valve is the lubrication system that is used for vehicle, what flow in the valve is lubricant grease, grease is when ambient temperature is used higher season, thereby can guarantee the good fluidity of the lower grease of viscosity of grease, hydraulic control valve can proper functioning like this; But when ambient temperature is low, it is big that the viscosity of grease becomes, thereby grease is mobile very poor, guarantee the mobile fine of grease under the low temperature environment, the oil pressure of just necessary raising system, and relief valve can not make oil pressure raise on the existing structure, thereby causes the lubrication system cisco unity malfunction, finally influences the normal lubricated of vehicle friction pair and the phenomenon of accelerated wear test occurs.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of and be applicable to throughout the year, can guarantee the normal lubricated relief valve of using that moves of vehicle lubrication system.
For solving the problems of the technologies described above, variable-pressure overflow valve used for lubricating provided by the invention, comprise valve body, spool and spring, described spool is slidingly fitted in the valve body, described valve body one end is provided with filler opening, the other end is bolted with the pressure regulation screw plug, one end and the pressure regulation screw plug of described spring push against, the other end and spool push against, have axial oilhole in the spool, described filler opening can communicate with fuel tank by axial oilhole and overflow hole, and described overflow hole is two, be respectively overflow aperture and overflow macropore, and axially-aligned is on the valve body or on the spool.
After adopting above structure, the present invention compared with prior art, has following advantage: owing to overflow hole is arranged to the overflow hole of two axially-aligned, this sample lubricated with relief valve when ambient temperature is used higher season, lower and the good fluidity of the viscosity of grease, only the resistance of being set up by single overflow hole and spring can be realized the function of overflow; When ambient temperature was used lower season, the viscosity of grease was higher and mobile poor, just needed to improve oil pressure this moment and overcome grease flow resistance at low temperatures, and relief valve provided by the invention has solved this problem just.When along with the reduction grease viscosity of temperature when increasing, the resistance that first overflow aperture produces also increases thereupon, thereby reached that Yin Wendu descends and the purpose that improves lubrication system pressure automatically, second overflow macropore is and the spring force mating reaction, it is the highest pressure limiting mechanism of lubrication system, like this, the pressure of lubrication system can progressively be raise along with decrease of temperature.
Described overflow hole is positioned on the spool, is sliding combined with valve core housing in the described valve body, is sliding combined with spool in the valve core housing; This relief valve also comprises unloading valve component, and described unloading valve component is slidingly fitted in the valve body, and between filler opening and spool; Spool is with spring seat outward, and an end face and the spring of described spring seat offset, and other end and valve core housing offset.After adopting this structure, make this relief valve be applicable to built-in structure more, promptly relief valve is placed in the valve plate, reduce the outer valve assembly of valve plate.
Described overflow hole is positioned on the valve body, and described spool is provided with the cross-drilled hole that communicates with axial oilhole diametrically, and described cross-drilled hole is provided with groove at spool periphery place.After adopting this structure, make this relief valve be applicable to external more, promptly this relief valve directly is threaded on the valve plate and gets final product, use very convenient.
Description of drawings
Fig. 1 is the lubricated structural representation with relief valve of prior art;
Fig. 2 is the built-in structural representation of variable-pressure overflow valve used for lubricating of the present invention;
Fig. 3 is the structural representation of variable-pressure overflow valve used for lubricating external of the present invention.
Wherein,
Prior art: 1 ', filler opening; 2 ', oilhole; 3 ', spool; 6 ', overflow aperture; 8 ', valve body; 9 ', spring; 10 ', pressure regulation screw plug; 11 ', unloading valve component; 12 ', valve core housing; 13 ', spring seat; 14 ', spill port; 15 ', oil outlet;
The present invention: 1, filler opening; 2, axial oilhole; 3, spool; 4, groove; 5, cross-drilled hole; 6, overflow aperture; 7, overflow macropore; 8, valve body; 9, spring, 10, pressure regulation screw plug; 11, unloading valve component; 12, valve core housing; 13, spring seat; 14, spill port; 15, oil outlet.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is done explanation in further detail.
By the lubricated structural representation with relief valve of prior art shown in Figure 1 as can be known, comprise valve body 8 ' and spool 3 ', described spool 3 ' is slidingly fitted in the valve core housing 12 ', and valve core housing 12 ' is slidingly fitted in the valve body 8 '.Described valve body 8 ' one end is provided with filler opening 1 ', and the other end is bolted with pressure regulation screw plug 10 '.Have axial oilhole 2 ' in the described spool 3 ', an end of spool 3 ' is connected with pressure regulation screw plug 10 ' by spring 9 ', and the oilhole 2 ' of the other end communicates with filler opening 1 ' by unloading valve component 11 '.Be with spring seat 13 ' outside the spool 3 ', an end face and the spring 9 ' of described spring seat 13 ' offset, and other end and valve core housing 12 ' offset.Have overflow aperture 6 ' on the described spool 3 ', filler opening 1 ' communicates with spill port 14 ' by oilhole 2 ' and overflow aperture 6 '.
By the structural representation of variable-pressure overflow valve used for lubricating of the present invention shown in Figure 2 as can be known, it comprises valve body 8, spool 3 and spring 9, and described spool 3 is slidingly fitted in the valve core housing 12, and valve core housing 12 is slidingly fitted in the valve body 8.Described valve body 8 one ends are provided with filler opening 1, and the other end is bolted with pressure regulation screw plug 10.One end of described spring 9 pushes against on pressure regulation screw plug 10, and the other end pushes against on spool 3.This relief valve also comprises unloading valve component 11, and described unloading valve component 11 is slidingly fitted in the valve body 8, and between filler opening 1 and spool 3.Be with spring seat 13 outside the spool 3, an end face and the spring 9 of described spring seat 13 offset, and other end and valve core housing 12 offset.Have axial oilhole 2 in the spool 3, also have two radially overflow holes that communicate with oilhole 2 on the spool 3, be respectively overflow aperture 6 and the overflow macropore 7 arranged along parallel axes.Described filler opening 1 can communicate with fuel tank by overflow hole, axial oilhole 2 and spill port 14.
Adopt the structure of relief valve of this in-flow, when oil pump work, system oil pressure rises, pressure oil enters valve pocket in the valve body from filler opening 1, with the bowl ring jack-up in the unloading valve component, the spring in the compression unloading valve component, at this moment, bowl ring props up spool 3, with 2 sealings of the oilhole in the spool 3.This moment, pressure oil entered oil outlet 15 from the logical oil groove of the guide holder periphery of unloading valve component through the bowl-type lip limit of bowl ring, thereby to system's fuel feeding.When system reached the setting pressure of relief valve, pressure oil promoted valve core housing 12 and moves right pressure spring 9, oilhole 2 in the spool 3 is connected by overflow aperture 6 and oil outlet 15 like this, excess oil flows back to fuel tank just through overflow aperture 6, oilhole 2 from spill port 14 at this moment, and system is keep-uped pressure.When making the viscosity of grease increasing if ambient temperature descends, the flow resistance of grease also increases, the resistance that overflow aperture 6 and spring force produced of flowing through also increases, the pressure of lubrication system also increases, pressure continuation promotion valve core housing 12 until system moves right, open the pressure limiting passage of overflow macropore 7, oilhole 2 in the spool 3 is connected by overflow macropore 7 and oil outlet 15 like this, this moment, excess oil was just through overflow macropore 7, oilhole 2, flow back to fuel tank from spill port 14, thereby make system pressure keep a higher pressure area limit again.
By the structural representation of variable-pressure overflow valve used for lubricating of the present invention shown in Figure 3 as can be known, it comprises valve body 8, spool 3 and spring 9, and described spool 3 is slidingly fitted in the valve core housing 12, and valve core housing 12 is slidingly fitted in the valve body 8.Described valve body 8 one ends are provided with filler opening 1, and the other end is bolted with pressure regulation screw plug 10.One end of described spring 9 pushes against on pressure regulation screw plug 10, and the other end pushes against on spool 3.Have axial oilhole 2 in the spool 3, have two radially overflow holes on the valve body 8, be respectively the overflow aperture 6 and the overflow macropore 7 that are arranged in parallel.Described spool 3 is shaped on the cross-drilled hole 5 that communicates with oilhole 3 diametrically.Described cross-drilled hole 5 is shaped on groove 4 at spool 3 periphery places, and described groove 4 size in the axial direction is greater than the size of space of overflow aperture 6 and overflow macropore 7.Described filler opening 1 can communicate with fuel tank by axial oilhole 2, overflow hole and external return tube.
Adopt the structure of relief valve of this outer-flowing type, when oil pump work, system oil pressure rises, and pressure oil enters valve pocket in the valve body from filler opening 1, when system reaches the setting pressure of relief valve, pressure oil promotes spool 3 and moves right, pressure spring 9, the oilhole 2 in the spool 3 is by overflow aperture 6 oil sump tanks like this, and this moment, excess oil was just through oilhole 2, cross-drilled hole 5, groove 4, flow back to fuel tank from overflow aperture 6, system is keep-uped pressure.When making the viscosity of grease increasing if ambient temperature descends, the flow resistance of grease also increases.The resistance that overflow aperture 6 and spring force produced of flowing through also increases, the pressure of lubrication system also increases, to continue to promote spool 3 until the pressure of system moves right, open the pressure limiting passage of overflow macropore 7, oilhole 2 in the spool 3 is by overflow macropore 7 or simultaneously by overflow aperture 6 and overflow macropore 7 oil sump tanks like this, this moment, excess oil was just through oilhole 2, cross-drilled hole 5, groove 4, from overflow macropore 7 or flow back to fuel tank from overflow aperture 6 and overflow macropore 7 simultaneously, thereby make system keep a higher pressure area limit again.
The present invention is not limited to above-described specific embodiment, and wherein, groove 4 size in the axial direction also can at this moment, not worked with overflow aperture 6 when 7 work of overflow macropore simultaneously greater than the size of space of overflow aperture 6 and overflow macropore 7.These variations all fall within the protection domain of the present invention.
Claims (4)
1. variable-pressure overflow valve used for lubricating, comprise valve body (8), spool (3) and spring (9), described spool (3) is slidingly fitted in the valve body (8), described valve body (8) one ends are provided with filler opening (1), the other end is bolted with pressure regulation screw plug (10), one end of described spring (9) and pressure regulation screw plug (10) push against, the other end and spool (3) push against, has axial oilhole (2) in the spool (3), described filler opening (1) can communicate with fuel tank by axial oilhole (2) and overflow hole, it is characterized in that: described overflow hole is two, is respectively overflow aperture (6) and overflow macropore (7), and axially-aligned is on valve body (8) or on the spool (3).
2. variable-pressure overflow valve used for lubricating according to claim 1, it is characterized in that: described overflow aperture (6) and overflow macropore (7) all are positioned on the spool (3), be sliding combined with valve core housing (12) in the described valve body (8), be sliding combined with spool (3) in the valve core housing (12); This relief valve also comprises unloading valve component (11), and described unloading valve component (11) is slidingly fitted in the valve body (8), and is positioned between filler opening (1) and the spool (3); Spool (3) is outer to be with spring seat (13), and an end face of described spring seat (13) and spring (9) offset, and other end and valve core housing (12) offset.
3. variable-pressure overflow valve used for lubricating according to claim 1 is characterized in that: described overflow aperture (6) and overflow macropore (7) all are positioned on the valve body (8), and described spool (3) is provided with the cross-drilled hole (5) that communicates with axial oilhole (2) diametrically.
4. variable-pressure overflow valve used for lubricating according to claim 3 is characterized in that: described cross-drilled hole (5) is provided with groove (4) at spool (3) periphery place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101034793A CN101776200B (en) | 2010-01-26 | 2010-01-26 | Variable-pressure overflow valve used for lubricating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101034793A CN101776200B (en) | 2010-01-26 | 2010-01-26 | Variable-pressure overflow valve used for lubricating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101776200A CN101776200A (en) | 2010-07-14 |
| CN101776200B true CN101776200B (en) | 2011-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101034793A Active CN101776200B (en) | 2010-01-26 | 2010-01-26 | Variable-pressure overflow valve used for lubricating |
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| Country | Link |
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| CN (1) | CN101776200B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829316B (en) | 2012-09-10 | 2015-09-02 | 郑州奥特科技有限公司 | A kind of liquid dispensing valve |
| CN104675781B (en) * | 2013-11-30 | 2016-08-24 | 中国科学院沈阳自动化研究所 | A kind of compact external control direct-acting overflow valve |
| CN104197179B (en) * | 2014-09-02 | 2017-10-10 | 李祺 | A kind of railway switch multiple spot self-acting lubricator |
| CN109709359A (en) * | 2019-02-25 | 2019-05-03 | 深圳供电局有限公司 | Adapter, the test splice of GIS device and GIS device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4016897A (en) * | 1975-02-10 | 1977-04-12 | Zeo Asioli | Pressure and flow-regulating valve for automatic or semiautomatic-cycle lubricating system |
-
2010
- 2010-01-26 CN CN2010101034793A patent/CN101776200B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4016897A (en) * | 1975-02-10 | 1977-04-12 | Zeo Asioli | Pressure and flow-regulating valve for automatic or semiautomatic-cycle lubricating system |
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| Publication number | Publication date |
|---|---|
| CN101776200A (en) | 2010-07-14 |
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Address after: 315700, No. 309, Penglai Road, Dan Town Industrial Park, Xiangshan County, Zhejiang Patentee after: Three wave group Limited by Share Ltd. Address before: 315700, No. 309, Penglai Road, Dan Town Industrial Park, Xiangshan County, Zhejiang Patentee before: Zhejiang Sanlang Industrial Co.,Ltd. |
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Effective date of registration: 20160203 Address after: 315700 Xiangshan Industrial Demonstration Park, Zhejiang Patentee after: Ningbo Sanlang Global Vehicle Parts Co.,Ltd. Address before: 315700, No. 309, Penglai Road, Dan Town Industrial Park, Xiangshan County, Zhejiang Patentee before: Three wave group Limited by Share Ltd. |
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Effective date of registration: 20170111 Address after: 315700 Penglai Road, Xiangshan Industrial Park, Zhejiang, China, No. 309, No. Patentee after: NINGBO SANLANG LUBRICATION ELE Address before: 315700 Xiangshan Industrial Demonstration Park, Zhejiang Patentee before: Ningbo Sanlang Global Vehicle Parts Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180816 Address after: 315700 Mei reef village, Xiao Tang Township, Xiangshan County, Ningbo, Zhejiang (industrial agglomeration area) Patentee after: ZHEJIANG SANLANG LUBRICATION TECHNOLOGY CO.,LTD. Address before: 315700 No. 309 Penglai Road, Xiangshan Industrial Park, Ningbo, Zhejiang. Patentee before: NINGBO SANLANG LUBRICATION ELE |