CN107620820B - A kind of adjustable overflow reversal valve calibrated automatically - Google Patents
A kind of adjustable overflow reversal valve calibrated automatically Download PDFInfo
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- CN107620820B CN107620820B CN201711186013.2A CN201711186013A CN107620820B CN 107620820 B CN107620820 B CN 107620820B CN 201711186013 A CN201711186013 A CN 201711186013A CN 107620820 B CN107620820 B CN 107620820B
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- spring
- overflow
- valve body
- shell
- electromagnet
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052742 iron Inorganic materials 0.000 claims abstract description 11
- 238000004891 communication Methods 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 19
- 239000010720 hydraulic oil Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
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- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses the adjustable overflow reversal valves that one kind is calibrated automatically, including reversing valve body and overflow valve body, overflow valve body includes shell, plug is equipped in the runner of shell, first spring and spring base, spool one end of reversing valve body is provided with the first magnet, the first electromagnet is provided on reversing valve body, there is taper adjustment portion and opening on shell, open side is connected with adjusting set, if being arranged radially dry slide and overflow ducts in adjusting set, adjustable plate is equipped in slideway, second spring is equipped between adjustable plate and slideway end face, it adjusts front edge of board and is provided with the inclined-plane cooperated with taper adjustment portion, several limit raised lines are equipped on adjustable plate, elastic ring and iron block are provided on spring base, the second electromagnet is provided on shell, first electromagnet is connected with the second electromagnet.This kind of overflow reversal valve is capable of the oil pressure relief of regulation relief valve, the elastic force of the first spring of adjust automatically when commutating every time, and is easily achieved the automation control of valve.
Description
Technical field
The invention belongs to valve technology field, specifically a kind of adjustable overflow reversal valve calibrated automatically.
Background technique
Reversal valve is the directional control valve with two or more liquid forms and more than two hydraulic fluid ports.It is to realize hydraulic oil stream
Communication, cutting and commutation and discharge degree and sequentially-operating control valve.
Overflow reversal valve is the combination valve that overflow valve is equipped at the oil inlet of reversal valve, and the oil pressure at oil inlet is more than
When specified value, the pressure of high pressure oil overcomes spring force in overflow valve, and partial high pressure oil is returned through the oil spilling road of overflow valve
Fuel tank.When oil pressure in safe range when, plug is pressed on valve position, overflow valve by spring under the action of itself pretightning force
It closes.
The elastic force of spring can be gradually reduced in overflow valve in the long-term use process, if the spring force mistake of overflow valve
Small or spring shortens failure, and hydraulic oil is entering oil spilling road lower than plug being forced to leave valve bit stream under system authorized pressure,
Interior leakage is caused, thrashing is made.Spring must be replaced when repairing, then adjust spring pressure to defined pressure using adjusting screw
Power.Overflow reversal valve service life using this kind of structure is short, and replacement spring is troublesome in poeration.
Existing overflow valve needs the decrement by changing compressed spring to change the oil pressure relief of overflow valve, and uses
This kind of mode adjust after overflow valve spring still can shorten failure after long-term use, at this time again need re-start tune
Section, service life is short, adjusts trouble.
Existing overflow reversal valve is during commutation simultaneously, in reversal valve handoff procedure, due to being used to for hydraulic oil
Property can make the pressure moment of overflow valve increase, to have the hydraulic oil of part to be returned directly to fuel tank from overflow valve, so that hydraulic
The energy dissipation of pump.
Summary of the invention
The present invention in view of the shortcomings of the prior art, providing a kind of adjustable overflow reversal valve calibrated automatically, change by this kind of overflow
It is capable of the oil pressure relief of regulation relief valve to valve, and even if stilling remain in setting pressure after spring shortens failure, thus
Extend the service life of overflow reversal valve, and hydraulic oil can be prevented in reversal valve handoff procedure to leak oil return from overflow valve
Case, and it is easily achieved the automation control of valve.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals: what one kind was calibrated automatically can
Adjust overflow reversal valve, including reversing valve body and overflow valve body, the import of the reversing valve body and the overflow valve
The inlet communication of ontology, the overflow valve body includes shell, and runner is provided in the shell, is equipped with plug in the runner
And spring base, the first spring is provided between the spring base and the plug, spool one end of the reversing valve body is set
It is equipped with the first magnet, the first electromagnet with first magnet cooperation is provided on the reversing valve body, on the shell
With taper adjustment portion and the threaded opening of tool, the open side is threaded with adjusting set, radial direction in the adjusting set
If being provided with dry slide and middle part being equipped with the overflow ducts with oil return orifice, the slideway is interior to be equipped with adjustable plate, the tune
It saves and is equipped between plate and the slideway end face by several distracted second springs of adjustable plate, the adjusting front edge of board is provided with
With the inclined-plane of taper adjustment portion cooperation, every piece of adjustable plate is provided with several limit raised lines, institute close to the flow passage side
It states and is provided with elastic ring on spring base, iron block is provided on the spring base, be provided on the shell and cooperate with the iron block
The second electromagnet, first electromagnet connects with second electromagnet, the spring base and adjacent two limit convex
The elastic force difference of first spring described in when item abuts against is less than first spring to the upper limit of the elastic force prescribed limit of the plug
With the difference of lower limit.This kind of overflow reversal valve can make adjustable plate slide in slideway by adjusting the position of adjusting set, from
And the distance that elastic ring protrudes into limit raised line is adjusted, so that adjustment spring seat slips over elastic force needed for limiting raised line, until adjusting
The elastic force for slipping over the limit raised line to the spring base is equal to first spring to the elastic force prescribed limit of the plug
The upper limit is completed to adjust；Mobile by the current direction control valve core for controlling the first electromagnet when needing to commutate, second is electric at this time
Magnet, which is powered, attracts iron block to make spring base mobile towards the direction of the first spring of compression, and elastic ring bending slips over limit raised line,
First spring is compressed, so that the oil pressure relief of overflow valve increases when commutation, prevents in reversal valve handoff procedure hydraulic oil from overflowing
It flows valve and leaks oil return box, the first electromagnet and the second electromagnet power off after commutation is completed, and spring base is by the first spring
Elastic force is pushed back into automatically on one of limit raised line, when being abutted against as the spring base and the adjacent two limit raised line described in
The elastic force difference of first spring is less than first spring to the upper limit of the elastic force prescribed limit of plug and the difference of lower limit, because
This, at this time the first spring to the elastic force of plug always within the specified scope.Therefore pass through compression after the first spring shortens failure
Also the first spring can be made within the specified scope, so that the service life of overflow valve is elongated, and to control the pressure of plug
System is convenient, and in each commutation, the elastic force of the first spring of adjust automatically, does not need to tear valve open, and be easily achieved the automation control of valve
System.
In above-mentioned technical proposal, it is preferred that the electromagnet includes being wound around the conductive coil of the shell and being located at
The shell between the conductive coil.Make the structure of overflow valve more compact using the structure.
In above-mentioned technical proposal, it is preferred that be provided with sealing ring between the opening and the adjusting set.Using the structure
Increase the leakproofness between opening and the adjusting set, prevents hydraulic fluid leak.
Compared with prior art, the present invention having the following beneficial effects: that this kind of overflow reversal valve can be by adjusting
The position of set slides adjustable plate in slideway, so that the distance that elastic ring protrudes into limit raised line is adjusted, thus adjustment spring
Elastic force needed for seat slips over limit raised line is equal to described the until being adjusted to the spring base and slipping over the elastic force of the limit raised line
One spring is completed to adjust to the upper limit of the elastic force prescribed limit of the plug；When needing to commutate, by controlling the first electromagnet
Current direction control valve core it is mobile, the second electromagnet, which is powered, at this time attracts iron block to make spring base towards the first spring of compression
Direction is mobile, and elastic ring bending slips over limit raised line, and the first spring is compressed, so that the oil pressure relief of overflow valve increases when commutation
Greatly, hydraulic oil is prevented in reversal valve handoff procedure to leak oil return box from overflow valve, the first electromagnet and the after commutation is completed
Two electromagnet power off, and spring base is pushed back on one of limit raised line automatically by the elastic force of the first spring, due to the bullet
The elastic force difference of first spring described in when spring abutment and the adjacent two limit raised line abut against is less than first spring to plug
The upper limit of elastic force prescribed limit and the difference of lower limit, therefore, at this time the first spring to the elastic force of plug always within the specified scope.
Therefore after the first spring shortens failure by compression can also make the first spring to the pressure of plug within the specified scope, thus
So that the service life of overflow valve is elongated, and easy to control, in each commutation, the elastic force of the first spring of adjust automatically, is not required to
It tears valve open, and is easily achieved the automation control of valve.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of the embodiment of the present invention.
Fig. 2 is the structural schematic diagram of adjusting set in the present invention.
Specific embodiment
Present invention is further described in detail with reference to the accompanying drawings and detailed description: a kind of referring to Fig. 1 to Fig. 2
Automatically the adjustable overflow reversal valve calibrated, including reversing valve body 100 and overflow valve body 200, the reversing valve body
The inlet communication of 100 import and the overflow valve body 200, the overflow valve body 200 includes shell 1, in the shell 1
It is provided with runner 2, plug 3 and spring base 4 is equipped in the runner 2, is provided between the spring base 4 and the plug 3
First spring 5,101 one end of spool of the reversing valve body 100 are provided with the first magnet 102, on the reversing valve body 100
It is provided with the first electromagnet 103 with first magnet 102 cooperation, there is taper adjustment portion 11 and tool on the shell 1
Threaded opening 12,12 sides of the opening are threaded with adjusting set 6, if being arranged radially dry slide in the adjusting set 6
61 and middle part be equipped with the overflow ducts 66 that be connected tos with oil return interface 9, equipped with adjustable plate 62, the adjustable plate 62 in the slideway 61
It is equipped between 61 end face of slideway by the distracted second spring 63 of several adjustable plates 62,62 front end of adjustable plate is set
It is equipped with the inclined-plane 64 with the taper adjustment portion 11 cooperation, every piece of adjustable plate 62 is provided with several close to 2 side of runner
Raised line 65 is limited, is provided with elastic ring 41 on the spring base 4, is provided with iron block 42 on the spring base 4, on the shell 1
It is provided with the second electromagnet 7 with the iron block 42 cooperation, first electromagnet 103 is connected with second electromagnet 7, institute
The elastic force difference of first spring 5 described in stating when spring base 4 is abutted against with the adjacent two limit raised line 65 is less than first spring 5
The difference of the upper limit and lower limit to the elastic force prescribed limit of the plug 3.This kind of overflow reversal valve can be by adjusting adjusting set
Position adjustable plate is slided in slideway, thus adjust elastic ring protrude into limit raised line distance, thus adjustment spring seat
Elastic force needed for slipping over limit raised line, until being adjusted to the spring base slips over the elastic force of the limit raised line equal to described first
Spring is completed to adjust to the upper limit of the elastic force prescribed limit of the plug；When needing to commutate, pass through the first electromagnet of control
Current direction control valve core is mobile, and the second electromagnet, which is powered, at this time attracts iron block to make spring base towards the side for compressing the first spring
To movement, elastic ring bending slips over limit raised line, and the first spring is compressed, so that the oil pressure relief of overflow valve increases when commutation,
Hydraulic oil is prevented in reversal valve handoff procedure to leak oil return box from overflow valve, the first electromagnet and the second electricity after commutation is completed
Magnet powers off, and spring base is pushed back on one of limit raised line automatically by the elastic force of the first spring, due to the spring base
The elastic force difference of first spring described in when abutting against with the adjacent two limit raised line is less than first spring to the elastic force of plug
The upper limit of prescribed limit and the difference of lower limit, therefore, at this time the first spring to the elastic force of plug always within the specified scope.Therefore
After the first spring shortens failure by compression can also make the first spring to the pressure of plug within the specified scope so that
The service life of overflow valve is elongated, and easy to control, and in each commutation, the elastic force of the first spring of adjust automatically, does not need to tear open
Valve, and it is easily achieved the automation control of valve.First spring refers to the elastic force prescribed limit of plug: normal work
The first spring is to the preset elastic force of plug when making.
The electromagnet 7 includes being wound around the conductive coil 71 of the shell 1 and between the conductive coil 71
The shell 1.Make the structure of overflow valve more compact using the structure.
Sealing ring 8 is provided between the opening 12 and the adjusting set 6.Opening and the adjusting are increased using the structure
Leakproofness between set, prevents hydraulic fluid leak.
Claims (3)
1. the adjustable overflow reversal valve that one kind is calibrated automatically, including reversing valve body (100) and overflow valve body (200),
The inlet communication of the import of the reversing valve body (100) and the overflow valve body (200), the overflow valve body (200)
It including shell (1), is provided with runner (2) in the shell (1), plug (3) and spring base (4) is equipped in the runner (2),
The first spring (5) are provided between the spring base (4) and the plug (3), it is characterised in that: the reversing valve body
(100) spool (101) one end is provided with the first magnet (102), is provided with and described first on the reversing valve body (100)
The first electromagnet (103) of magnet (102) cooperation has on the shell (1) taper adjustment portion (11) and tool threaded
Be open (12), described opening (12) side is threaded with adjusting set (6), the adjusting set (6) if on be arranged radially dry slide
(61) and middle part is equipped with the overflow ducts (66) being connected to oil return interface (9), is equipped with adjustable plate (62) in the slideway (61), institute
It states and is equipped between adjustable plate (62) and the slideway (61) end face by the distracted second spring of several adjustable plates (62) (63),
Adjustable plate (62) front end is provided with the inclined-plane (64) with the taper adjustment portion (11) cooperation, every piece of adjustable plate (62)
The runner (2) side is provided with several limit raised lines (65), is provided with elastic ring (41) on the spring base (4), it is described
It is provided on spring base (4) iron block (42), the second electromagnet with the iron block (42) cooperation is provided on the shell (1)
(7), first electromagnet (103) is connected with second electromagnet (7), the spring base (4) and adjacent two limit
The elastic force difference of first spring (5) described in when raised line (65) abuts against is less than first spring (5) to the elastic force of the plug (3)
The upper limit of prescribed limit and the difference of lower limit, first spring refer to the elastic force prescribed limit of plug: working normally
When the first spring to the preset elastic force of plug.
2. the adjustable overflow reversal valve that one kind as described in claim 1 is calibrated automatically, it is characterised in that: second electromagnetism
Iron (7) includes the conductive coil (71) for being wound around the shell (1) and the shell between the conductive coil (71)
Body (1).
3. the adjustable overflow reversal valve that one kind as described in claim 1 is calibrated automatically, it is characterised in that: the opening (12)
Sealing ring (8) are provided between the adjusting set (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711186013.2A CN107620820B (en) | 2017-11-23 | 2017-11-23 | A kind of adjustable overflow reversal valve calibrated automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711186013.2A CN107620820B (en) | 2017-11-23 | 2017-11-23 | A kind of adjustable overflow reversal valve calibrated automatically |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107620820A CN107620820A (en) | 2018-01-23 |
| CN107620820B true CN107620820B (en) | 2019-01-08 |
Family
ID=61098735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711186013.2A Expired - Fee Related CN107620820B (en) | 2017-11-23 | 2017-11-23 | A kind of adjustable overflow reversal valve calibrated automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107620820B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404891B (en) * | 2021-06-24 | 2023-07-14 | 嘉兴米克气动设备有限公司 | Solenoid valve convenient to change elastic component |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51121824U (en) * | 1975-03-28 | 1976-10-02 | ||
| CN85109329A (en) * | 1985-12-26 | 1987-08-12 | 庄凤龄 | Pilot operated compound relief valve |
| CN200999897Y (en) * | 2006-12-20 | 2008-01-02 | 上海立新液压有限公司 | Drift diameter over-flow valve |
| CN202834247U (en) * | 2012-09-05 | 2013-03-27 | 北京工业大学 | Pure water hydraulic electromagnetism unloading overflow valve |
| CN204459326U (en) * | 2014-12-30 | 2015-07-08 | 张培胜 | A kind of direct-power safety valve |
| CN105351582A (en) * | 2015-11-19 | 2016-02-24 | 中国海洋大学 | Movable valve seat type spring loaded type relief valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3643311B2 (en) * | 2000-03-03 | 2005-04-27 | 本田技研工業株式会社 | Relief valve structure |
-
2017
- 2017-11-23 CN CN201711186013.2A patent/CN107620820B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51121824U (en) * | 1975-03-28 | 1976-10-02 | ||
| CN85109329A (en) * | 1985-12-26 | 1987-08-12 | 庄凤龄 | Pilot operated compound relief valve |
| CN200999897Y (en) * | 2006-12-20 | 2008-01-02 | 上海立新液压有限公司 | Drift diameter over-flow valve |
| CN202834247U (en) * | 2012-09-05 | 2013-03-27 | 北京工业大学 | Pure water hydraulic electromagnetism unloading overflow valve |
| CN204459326U (en) * | 2014-12-30 | 2015-07-08 | 张培胜 | A kind of direct-power safety valve |
| CN105351582A (en) * | 2015-11-19 | 2016-02-24 | 中国海洋大学 | Movable valve seat type spring loaded type relief valve |
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| Publication number | Publication date |
|---|---|
| CN107620820A (en) | 2018-01-23 |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181120 Address after: 755100 Ningxia Hui Autonomous Region Zhongwei City Zhongning County Zhengdalu Fukang Garden 10 # Commercial and Residential Building 1 Floor 09 Applicant after: Zhongning County Xin Qi hang Agriculture Development Co. Ltd. Address before: 312369 No. 17, Xijiang Road, East Village, Beizhen Town, Shangyu District, Shaoxing, Zhejiang Applicant before: Wang Yalian |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190108 Termination date: 20191123 |
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| CF01 | Termination of patent right due to non-payment of annual fee |