CN107605840B - Automatically the adjustable overflow reversal valve calibrated - Google Patents
Automatically the adjustable overflow reversal valve calibrated Download PDFInfo
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- CN107605840B CN107605840B CN201711186001.XA CN201711186001A CN107605840B CN 107605840 B CN107605840 B CN 107605840B CN 201711186001 A CN201711186001 A CN 201711186001A CN 107605840 B CN107605840 B CN 107605840B
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- spring
- overflow
- valve body
- adjustable
- adjustable plate
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- 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 14
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 239000010720 hydraulic oil Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
Abstract
The invention discloses the adjustable overflow reversal valves calibrated automatically, including reversing valve body and overflow valve body, overflow valve body includes shell, plug is equipped in runner in shell, spool one end of reversing valve body is provided with the first magnet, electromagnet is provided on reversing valve body, first spring and spring base, there is taper adjustment portion and opening on shell, open side is connected with adjusting set, if being radially provided with dry slide and overflow ducts in adjusting set, adjustable plate is equipped in slideway, it is equipped between adjustable plate and slideway end face by the distracted second spring of several adjustable plates, it adjusts front edge of board and is provided with the inclined-plane coordinated with taper adjustment portion, adjustable plate is provided with limit raised line close to flow passage side, elastic ring is provided on spring base, electric pushrod and oil return interface are provided in adjusting set, electric pushrod is connected with electromagnet.This kind of overflow reversal valve can adjust oil pressure relief, the elastic force of the first spring of adjust automatically in commutation, it is easy to accomplish the automation control of valve.
Description
Technical field
The invention belongs to valve technology field, the adjustable overflow reversal valve specifically calibrated automatically.
Background technology
Reversal valve is the directional control valve for having two or more liquid forms and more than two hydraulic fluid ports.It is to realize hydraulic pressure oil stream
Communication, cut-out 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 oil spilling road of the partial high pressure oil through overflow valve returns
Fuel tank.When oil pressure is in safe range, 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 during long-term use, if the spring force mistake of overflow valve
Small or spring shortens failure, and hydraulic oil can force plug to leave valve bit stream to enter oil spilling road under less than system authorized pressure,
Interior leakage is caused, thrashing is made.Spring must be replaced when repairing, and adjusting screw is then utilized to adjust spring pressure to defined pressure
Power.Overflow reversal valve service life using this kind of structure is short, and it is troublesome in poeration to replace spring.
Existing overflow valve needs to change the oil pressure relief of overflow valve by changing the decrement of compressed spring, 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 there is the hydraulic oil of part to be returned directly to fuel tank from overflow valve so that hydraulic pressure
The energy dissipation of pump.
Invention content
The present invention is in view of the shortcomings of the prior art, provide the adjustable overflow reversal valve calibrated automatically, this kind of overflow reversal valve
It is capable of the oil pressure relief of regulation relief valve, and even if setting pressure is stilled remain in after spring shortens failure, to extend
The service life of overflow reversal valve, and can prevent the hydraulic oil in reversal valve handoff procedure from leaking oil return box from overflow valve,
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：That calibrates automatically is adjustable
Overflow reversal valve, including reversing valve body and overflow valve body, the import of the reversing valve body and the overflow valve body
Inlet communication, the overflow valve body includes shell, is provided with runner in the shell, be equipped in the runner plug and
Spring base, is provided with the first spring between the spring base and the plug, spool one end of the reversing valve body is provided with
Magnet is provided with the electromagnet coordinated with the magnet on the reversing valve body, have on the shell taper adjustment portion with
And the threaded opening of tool, the open side are threaded with adjusting set, if be radially provided in the adjusting set dry slide and
Middle part is equipped with overflow ducts, is equipped with adjustable plate in the slideway, being equipped between the adjustable plate and the slideway end face will be several
The distracted second spring of adjustable plate, the adjusting front edge of board are provided with the inclined-plane coordinated with the taper adjustment portion, every piece
The adjustable plate is provided with several limit raised lines close to the flow passage side, and elastic ring, the adjusting are provided on the spring base
Putting on to be provided with pushes the spring base logical to the electric pushrod for compressing the movement of first spring direction and with the overflow
The oil return interface of road connection, the electromagnet are connected with the electric pushrod, the spring base and the adjacent two limit raised line
The elastic force difference of first spring described in when abutting against be 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 be slided in slideway by adjusting the position of adjusting set, to
The distance that elastic ring stretches into limit raised line is adjusted, to which adjustment spring seat slips over the elastic force needed for limit raised line, until being adjusted to
The elastic force that the spring base slips over the limit raised line is equal to first spring to the upper of the elastic force prescribed limit of the plug
Limit is completed to adjust；When needing commutation, the current direction by controlling electromagnet controls spool movement, and electric pushrod pushes at this time
The direction of spring base towards the first spring of compression is moved, and elastic ring bending slips over limit raised line, and the first spring is compressed, electronic
When pusher retracted, spring base is pushed back by the elastic force of the first spring on one of limit raised line automatically, due to the spring base
The elastic force that the elastic force difference of the first spring is less than first spring to plug described in when being abutted against with the adjacent two limit raised line
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 in prescribed limit.Therefore
It can also make the first spring to the pressure of plug in prescribed limit by compression after the first spring shortens failure, 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, need not tear open
Valve, and it is easily achieved the automation control of valve.
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 advantages that：This kind of overflow reversal valve can be by adjusting
The position of set makes adjustable plate be slided in slideway, to adjust the distance that elastic ring stretches into limit raised line, to adjustment spring
Seat slips over the elastic force needed for 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 commutation, by the electricity for controlling electromagnet
Flow direction control valve core moves, and the direction of electric pushrod push the spring seat towards the first spring of compression is moved at this time, and elastic ring is curved
Limit raised line is crossed in flexural slip, and the first spring is compressed, and when electric pushrod is retracted, spring base is pushed back automatically by the elastic force of the first spring
To one of limit raised line, when being abutted against with the adjacent two limit raised line due to the spring base described in the first spring bullet
Force difference value is less than first spring to the difference of the upper limit and lower limit of the elastic force prescribed limit of plug, therefore, the first bullet at this time
Spring is to the elastic force of plug always in prescribed limit.Therefore the first bullet can also be made by compression after the first spring shortens failure
Spring in prescribed limit, so that the service life of overflow valve is elongated, and easy to control, is changing the pressure of plug every time
To when the first spring of adjust automatically elastic force, valve need not be torn open, and be easily achieved the automation control of valve.
Description of the drawings
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 implementation mode
Present invention is further described in detail with reference to the accompanying drawings and detailed description：Referring to Fig. 1 to Fig. 2, automatically
The adjustable overflow reversal valve of calibration, including reversing valve body 100 and overflow valve body 200, the reversing valve body 100
The inlet communication of import and the overflow valve body 200, the overflow valve body 200 include shell 1, are arranged in the shell 1
There is runner 2, is equipped with plug 3 and spring base 4 in the runner 2, first is provided between the spring base 4 and the plug 3
101 one end of spool of spring 5, the reversing valve body 100 is provided with magnet 102, be provided on the reversing valve body 100 with
The electromagnet 103 that the magnet 102 coordinates has taper adjustment portion 11 and the threaded opening 12 of tool, institute on the shell 1
It states 12 sides of opening and is threaded with adjusting set 6, if being radially provided with dry slide 61 in the adjusting set 6 and middle part is logical equipped with overflow
Road 66, the slideway 61 is interior to be equipped with adjustable plate 62, and being equipped between 61 end face of the adjustable plate 62 and the slideway will be several described
62 distracted second spring 63 of adjustable plate, 62 front end of the adjustable plate are provided with the inclined-plane coordinated with the taper adjustment portion 11
64, every piece of adjustable plate 62 is provided with several limit raised lines 65 close to 2 side of the runner, and bullet is provided on the spring base 4
Property ring 41, be provided in the adjusting set 6 and the spring base 4 pushed electronic to be pushed away to compress that 5 direction of the first spring moves
Bar 7 and the oil return interface 9 being connect with the overflow ducts 66, the electromagnet 103 is connected with the electric pushrod 7, described
It is right to be less than first spring 5 for the elastic force difference of first spring 5 described in when spring base 4 is abutted against with the adjacent two limit raised line 65
The difference of the upper limit and lower limit of the elastic force prescribed limit of the plug 3.This kind of overflow reversal valve can be by adjusting adjusting set
Position makes adjustable plate be slided in slideway, to adjust the distance that elastic ring stretches into limit raised line, to which adjustment spring seat is slided
The elastic force needed for limit raised line is crossed, until being adjusted to the spring base slips over the elastic force of the limit raised line equal to first bullet
Spring is completed to adjust to the upper limit of the elastic force prescribed limit of the plug；When needing commutation, by the electric current side for controlling electromagnet
To control spool movement, the direction movement of the first spring of electric pushrod push the spring seat direction compression, elastic ring bending at this time is slided
Limit raised line is crossed, the first spring is compressed, and when electric pushrod is retracted, spring base is pushed back into it automatically by the elastic force of the first spring
In one limit raised line on, due to the spring base with it is adjacent two it is described limit raised line abut against when described in the first spring elastic force difference
Value is less than first spring to the difference of the upper limit and lower limit of the elastic force prescribed limit of plug, therefore, the first spring pair at this time
The elastic force of plug is always in prescribed limit.Therefore the first spring pair can also be made by compression after the first spring shortens failure
The pressure of plug is in prescribed limit, so that the service life of overflow valve is elongated, and it is easy to control, in each commutation
The elastic force of the first spring of adjust automatically, need not tear valve open, and be easily achieved the automation control of valve.First spring pair
The elastic force prescribed limit of plug refers to：The first spring is to the preset elastic force of plug when normal work.
It is provided with sealing ring 8 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 (2)
1. the adjustable overflow reversal valve calibrated automatically, including reversing valve body（100）And overflow valve body（200）, described
Reversing valve body（100）Import and the overflow valve body（200）Inlet communication, the overflow valve body（200）Including
Shell（1）, the shell（1）Inside it is provided with runner（2）, the runner（2）It is interior to be equipped with plug（3）And spring base（4）, described
Spring base（4）With the plug（3）Between be provided with the first spring（5）, it is characterised in that：The reversing valve body（100）'s
Spool（101）One end is provided with magnet（102）, the reversing valve body（100）On be provided with and the magnet（102）Cooperation
Electromagnet（103）, the shell（1）It is upper that there is taper adjustment portion（11）And the threaded opening of tool（12）, the opening
（12）Side is threaded with adjusting set（6）, the adjusting set（6）If upper radial direction is provided with dry slide（61）And middle part is equipped with overflow
Channel（66）, the slideway（61）It is interior to be equipped with adjustable plate（62）, the adjustable plate（62）With the slideway（61）It is set between end face
Have several adjustable plates（62）Distracted second spring（63）, the adjustable plate（62）Front end is provided with and the taper tune
Section portion（11）The inclined-plane of cooperation（64）, every piece of adjustable plate（62）Close to the runner（2）Side is provided with several limit raised lines
（65）, the spring base（4）On be provided with elastic ring（41）, the adjusting set（6）On be provided with and push the spring base（4）To
Compress first spring（5）The electric pushrod of direction movement（7）And with the overflow ducts（66）The oil return interface of connection
（9）, the electromagnet（103）With the electric pushrod（7）Series connection, the spring base（4）With the adjacent two limit raised line
（65）First spring described in when abutting against（5）Elastic force difference be less than first spring（5）To the plug（3）Elastic force regulation
The upper limit of range and the difference of lower limit.
2. the adjustable overflow reversal valve as described in claim 1 calibrated automatically, it is characterised in that：The opening（12）With institute
State adjusting set（6）Between be provided with sealing ring（8）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711186001.XA CN107605840B (en) | 2017-11-23 | 2017-11-23 | Automatically the adjustable overflow reversal valve calibrated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711186001.XA CN107605840B (en) | 2017-11-23 | 2017-11-23 | Automatically the adjustable overflow reversal valve calibrated |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107605840A CN107605840A (en) | 2018-01-19 |
| CN107605840B true CN107605840B (en) | 2018-09-28 |
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ID=61086367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711186001.XA Active CN107605840B (en) | 2017-11-23 | 2017-11-23 | Automatically the adjustable overflow reversal valve calibrated |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107605840B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112059714B (en) * | 2020-09-15 | 2021-08-27 | 湖南尚亿智能制造有限公司 | Mechanical cutting fluid flow control device for machine tool manufacturing |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU88390A1 (en) * | 1993-08-02 | 1995-03-01 | Hydrolux Sarl | Pilot stage for pressure relief valves |
| CN202746316U (en) * | 2012-09-11 | 2013-02-20 | 淮安市胜杰液压机械有限公司 | Integrated manual overflow reversing valve |
| CN103511678A (en) * | 2013-09-26 | 2014-01-15 | 番禺珠江钢管（珠海）有限公司 | Direct-acting overflow valve and method for establishing and releasing pressure thereof |
| CN205858853U (en) * | 2016-08-08 | 2017-01-04 | 大连兴龙液压有限公司 | A kind of electromagnetic relief valve |
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2017
- 2017-11-23 CN CN201711186001.XA patent/CN107605840B/en active Active
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| Publication number | Publication date |
|---|---|
| CN107605840A (en) | 2018-01-19 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| 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: 20180808 Address after: 312300 Siluo village, Xiaoyue Town, Shangyu District, Shaoxing, Zhejiang Applicant after: SHAOXING SHANGYU HENGFENG MACHINERY 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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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20240227 Address after: 102600, 5th floor, Building B, No. 6 Jinxiu Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee after: BEIJING ARES TECHNOLOGY CO.,LTD. Country or region after: China Address before: 312300 Siluo village, Xiaoyue Town, Shangyu District, Shaoxing, Zhejiang Patentee before: SHAOXING SHANGYU HENGFENG MACHINERY Co.,Ltd. Country or region before: China |
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| TR01 | Transfer of patent right |