CN109798282A - Filter pumping hole valve block device and control method - Google Patents
Filter pumping hole valve block device and control method Download PDFInfo
- Publication number
- CN109798282A CN109798282A CN201910075303.2A CN201910075303A CN109798282A CN 109798282 A CN109798282 A CN 109798282A CN 201910075303 A CN201910075303 A CN 201910075303A CN 109798282 A CN109798282 A CN 109798282A
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- China
- Prior art keywords
- oil
- valve block
- pumping hole
- hole valve
- pressure
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- 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.)
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- 238000005086 pumping Methods 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims description 8
- 238000001914 filtration Methods 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 13
- 230000033228 biological regulation Effects 0.000 claims description 11
- 239000003921 oil Substances 0.000 abstract description 110
- 238000013461 design Methods 0.000 abstract description 8
- 239000010720 hydraulic oil Substances 0.000 abstract description 6
- 239000002828 fuel tank Substances 0.000 abstract description 5
- 210000004907 gland Anatomy 0.000 description 5
- 239000012535 impurity Substances 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003447 ipsilateral effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a kind of filtering pumping hole valve block devices, including filter house and pumping hole valve block, filter house is equipped with outer tunnel and internal channel in filter core two sides, pumping hole valve block is equipped with oil input channel, back oil road, oil road and the foot passage for being connected to back oil road and oil road, filter house is fixedly connected with pumping hole valve block, the oil input channel of pumping hole valve block is communicated with the outer tunnel of filter house, and the internal channel of filter house is communicated with the foot passage of pumping hole valve block.Hydraulic oil in fuel tank flows into the oil inlet passage of pumping hole valve block from oil inlet of the invention, then the annular outer passageway of filter house is imported, after the filter element filtering of filter house, into the internal channel of filter house, then flow to the foot passage of pumping hole valve block, in foot passage after excess pressure adjusts, working connection is flowed into from check valve oil outlet, or flow back to oil cylinder from oil return opening.After filter house of the invention and pumping hole valve block integrated design, setting pipeline is not needed between the two and is connected, circuit design space is saved, has saved cost.
Description
Technical field
The present invention relates to technical field of hydraulic pressure, especially a kind of filtering pumping hole valve block device and control method.
Background technique
In hydraulic system, particulate contamination is often contained in hydraulic oil, impurity will cause Hydraulic Elements relative motion table
Abrasion, slide valve clamping stagnation, the orifice blocking in face, work normally to influence hydraulic system, shorten the service life of hydraulic system.Cause
This needs to install filter, to filter the various impurity being mixed in oil liquid, impurity is avoided to enter Hydraulic Power Transmission System and precision liquid
It presses in element, causes failure and influence the normal work of system.The technical requirements of hydraulic filter are as follows: (1) filter material is answered
With certain mechanical strength, guarantee to be destroyed because of the effect of hydraulic coupling under certain operating pressure；(2) one
Under fixed operating temperature, answers retention property to stablize, there are enough durabilities；(3) there is good anti-corrosion property ability；(4) structure is as far as possible
Simply, compact dimensions；(5) it is convenient for clean and maintenance, is conveniently replaceable filter core；(6) cheap.
The setting position of hydraulic oil filter in systems has a significant impact to the effect of contamination control.In hydraulic system
In, filter, which can according to need, to be mounted in oil suction road, pressure oil circuit or oil return line, also may be mounted at outside main system, group
At individual filtration system.The hydraulic oil filtering process of conventional hydraulic system is general are as follows: the hydraulic oil in fuel tank passes through oil suction
Filter (being not provided with sometimes) enters hydraulic pump and passes through pipe after the oil of hydraulic pump discharge flows into high pressure filter filtering by pipeline
Road flow into pumping hole valve block carry out pressure regulation after, then from pumping hole valve block the oil outlet of check valve imports working connection by pipeline.It is existing
Filter and pumping hole valve block be separate structure design, a pumping hole valve block can connect with several filters, oil pump with filter
It is required to setting pipeline between device, between filter and pumping hole valve block, between pumping hole valve block and working connection to connect, pipeline is more, system
Make complexity, leakage point is more, and needs to occupy biggish space.
Summary of the invention
For the applicant for the design seperated with pumping hole valve block of the filter in above-mentioned existing hydraulic system, connecting line is more,
Leakage point is more, the big disadvantage of occupied space, provides a kind of structurally reasonable filtering pumping hole valve block device, reduces piping connection,
Circuit design space is saved, leakage point, while save the cost are reduced.
The technical solution adopted in the present invention is as follows:
A kind of filtering pumping hole valve block device, including filter house and pumping hole valve block, filter house are equipped with outer tunnel and interior in filter core two sides
Channel, pumping hole valve block are equipped with oil input channel, back oil road, oil road and the foot passage for being connected to back oil road and oil road, filter house
It is fixedly connected with pumping hole valve block, the oil input channel of pumping hole valve block is communicated with the outer tunnel of filter house, the internal channel and pumping hole of filter house
The foot passage of valve block communicates.
As a further improvement of the above technical scheme:
Sealing device is set at the hole cooperation corresponding with pumping hole valve block of the lower sleeve of the filter core of the filter house.
The sealing device is that lower sleeve external cylindrical surface is provided with annular groove, and the second sealing ring is arranged in groove.
The height of lower sleeve is higher than the aperture of the oil input channel of pumping hole valve block.
The interface of the oil input channel can be set in the end face or bottom surface of pumping hole valve block.
It is provided with pressure valve between the back oil road and foot passage, is provided between oil road and foot passage unidirectional
Valve, pressure valve outer end are equipped with pressure regulation guide and solenoid directional control valve.
The pressure valve and check valve combination settings.
The oil input channel is connected with pressure measuring unit, and foot passage is connected with differential pressure transmitter device.
A kind of control method filtering pumping hole valve block device, solenoid directional control valve on-off control pressure valve turn off or on,
Pressure regulation guide adjusts oil liquid pressure；
Solenoid directional control valve power-off makes oil liquid no pressure, and oil liquid flows back to oil cylinder by back oil road；
Solenoid directional control valve is powered, and adjusting pressure regulation guide makes oil liquid boost, and when oil liquid pressure is greater than working connection pressure, check valve is to close
Closed state；Oil liquid pressure is greater than working connection pressure, and oil liquid flows into working connection by oil road.
Beneficial effects of the present invention are as follows:
The present invention is mainly made of filter house and pumping hole valve block, and filter house is fixedly connected with pumping hole valve block by pressing plate, pumping hole valve
The oil inlet passage of block is connected to the outer tunnel of filter house, and the internal channel of filter house is communicated with the foot passage of pumping hole valve block, pumping hole
The foot passage connection oil discharge passage and drainback passage of valve block.Hydraulic oil in fuel tank flows into pumping hole valve from oil inlet of the invention
Then the oil inlet passage of block imports the annular outer passageway of filter house, after the filter element filtering of filter house, into filter house
Channel then flows to the foot passage of pumping hole valve block, in foot passage after excess pressure adjusts, flows into and leads from check valve oil outlet
Oil circuit, or oil cylinder is flowed back to from oil return opening.After filter house of the invention and pumping hole valve block integrated design, do not need to set between the two
Pipeline connection is set, circuit design space is saved, has saved cost.Oil inlet of the invention can be set in side, can also be with
In bottom surface, the connection design of oil inlet and oil cylinder is more flexible for setting.
Filter core of the invention uses cylinder sealing means, and annular groove, groove is arranged in the periphery of filter core lower sleeve
Interior setting flexible seals reduce the required precision of filter core and pumping hole valve block mating surface, to reduce the processing work of filter core
Skill difficulty.
Detailed description of the invention
Fig. 1 is perspective view of the invention.
Fig. 2 is cross-sectional view of the invention.
Fig. 3 is the A-A cross-sectional view of Fig. 2.
Fig. 4 is the B-B cross-sectional view of Fig. 3.
Fig. 5 is the principle of the present invention figure.
In figure: 1, filter house；2, pumping hole valve block；3, pressing plate；4, shell；5, filter core；6, gland；7, spring；8, gas vent；
9, the first sealing ring；10, lower sleeve；11, the second sealing ring；12, outer tunnel；13, internal channel；14, oil inlet；15, oil return
Mouthful；16, oil outlet；17, oil input channel；18, back oil road；19, oil road；20, foot passage；21, differential pressure transmitter device；22, pressure
Valve；23, pressure regulation guide；24, solenoid directional control valve；25, check valve；26, pressure measuring unit；27, bottom oil input channel.
Specific embodiment
Specific embodiments of the present invention will be described below with reference to the accompanying drawings.
As shown in Figure 1, filter house 1 of the invention is fixedly connected by pressing plate 3 with pumping hole valve block 2.As shown in Figure 2 and Figure 3,
Filter house 1 of the invention is mainly made of shell 4, filter core 5, gland 6 and spring 7, between the annular between filter core 5 and shell 4
Gap is outer tunnel 12, and 5 inner hole of filter core is internal channel 13, and 4 upper end of shell is equipped with gland 6 by connection type, and gland 6 passes through spring
7 compress downwards filter core 5.Gas vent 8 is provided on gland 6, for internal gas to be discharged.4 lower end of shell of filter house 1 and pump
Corresponding stepped hole clearance fit in mouth valve block 2, cooperation are in external cylindrical surface and are provided with the first sealing ring 9；5 bottom of filter core is logical
The lower sleeve 10 for crossing its periphery cooperates is arranged sealing device, the sealing in the corresponding hole of pumping hole valve block 2 and at cooperation
Device is that 10 external cylindrical surface of lower sleeve is provided with annular groove, and the second sealing ring 11 is arranged in groove；The height of lower sleeve 10
Degree is higher than 17 aperture of oil input channel, so lower sleeve 10 bears oil when oil liquid enters the outer tunnel 12 of filter core 5 from oil input channel 17
The souring of liquid, avoids oil inlet from directly washing away strainer.
As shown in Figures 2 to 4, it is logical that oil input channel 17, back oil road 18, oil road 19 and bottom are provided in pumping hole valve block 2
Road 20；The oil input channel 17 of pumping hole valve block 2 is communicated with the outer tunnel 12 of filter house 1, the internal channel 13 and pumping hole valve block 2 of filter house 1
Foot passage 20 communicate, foot passage 20 communicates respectively with back oil road 18 and oil road 19.In pumping hole valve block 2 and oil input channel 17
Corresponding endface position is provided with oil inlet 14, and oil inlet 14 can be connect by flange with oil cylinder；Oil inlet 14 can also be with
It is arranged in bottom surface, positioned at the oral area of bottom oil input channel 27.At the end corresponding with back oil road 18 and oil road 19 of pumping hole valve block 2
Face position is respectively arranged with oil return opening 15 and oil outlet 16, and oil return opening 15 can be connect by flange with oil cylinder, and oil outlet 16 is logical
Crossing flange can connect with working connection.Pressure valve 22, oil road 19 and bottom are provided between back oil road 18 and foot passage 20
Check valve 25 is provided between channel 20；Check valve 25 controls oil liquid one-way flow, to prevent oil liquid from flowing back from working connection.
The working principle and working process of the present invention is as follows:
As shown in Figures 1 to 5,17 one end of oil inlet passage of pumping hole valve block 2 of the invention connects oil inlet 14, and the other end connected
Filter portion 1；Filter house 1 is separately connected check valve 25 and pressure valve 22 by the foot passage 20 of pumping hole valve block 2, and check valve 25 passes through
Oil outlet 16 is connected to working connection, and pressure valve 22 is connected to oil cylinder by oil return opening 15.22 outer end of pressure valve is equipped with pressure regulation guide
23 and solenoid directional control valve 24, solenoid directional control valve 24 can control opening or closing for pressure valve 22, pressure regulation guide 23 is adjustable
Flow through the oil liquid pressure of pressure valve 22.Pressure measuring unit 26 and pressure are provided in pumping hole valve block 2 and the ipsilateral end face of oil inlet 14
Poor signalling generator 21, pressure measuring unit 26 connect with oil input channel 17, to monitor the working condition of system；Differential pressure transmitter device 21 and bottom are logical
Road 20 connects, to monitor whether filter core 5 blocks.
In actual work, oil inlet 14 connects oil pump, oil return opening 15 is connected to fuel tank, and oil outlet 16 is connected to working connection
On, differential pressure transmitter device 21 and pressure measuring unit 26 are powered, and the oil liquid of oil cylinder flows into oil input channel 17 from oil inlet 14, through 1 mistake of filter house
After filter, the foot passage 20 of pumping hole valve block 2 is imported:
(1) when 24 no power of solenoid directional control valve, 22 off-load of pressure valve passes through after oil liquid overcomes the spring pressure of pressure valve 22
Back oil road 18 flows back to fuel tank from oil return opening 15.The oil liquid no pressure in system, check valve 25 are in close state at this time.
(2) when solenoid directional control valve 24 is powered, pressure valve 22 is closed, and is adjusted pressure regulation guide 23, is adjusted the oil liquid pressure of system,
After the pressure of oil liquid overcomes the spring pressure of check valve 25, oil liquid flows into working connection from oil outlet 16 by oil road 19.
Above description is explanation of the invention, is not limitation of the invention, without prejudice to spirit of that invention the case where
Under, the present invention can make any type of modification.
Claims (9)
1. a kind of filtering pumping hole valve block device, it is characterised in that: including filter house (1) and pumping hole valve block (2), filter house (1) exists
Filter core (5) two sides are equipped with outer tunnel (12) and internal channel (13), and pumping hole valve block (2) is equipped with oil input channel (17), back oil road (18), goes out
Oil duct (19) and the foot passage (20) for being connected to back oil road (18) and oil road (19), filter house (1) and pumping hole valve block (2)
It is fixedly connected, the oil input channel (17) of pumping hole valve block (2) is communicated with the outer tunnel (12) of filter house (1), the internal channel of filter house (1)
(13) it is communicated with the foot passage (20) of pumping hole valve block (2).
2. filtering pumping hole valve block device described in accordance with the claim 1, it is characterised in that: the filter core (5) of the filter house (1)
Sealing device is set at lower sleeve (10) hole cooperation corresponding with pumping hole valve block (2).
3. filtering pumping hole valve block device according to claim 2, it is characterised in that: the sealing device is lower sleeve
(10) external cylindrical surface is provided with annular groove, and the second sealing ring (11) are arranged in groove.
4. filtering pumping hole valve block device according to claim 2, it is characterised in that: the height of lower sleeve (10) is higher than pump
The aperture of the oil input channel (17) of mouth valve block (2).
5. filtering pumping hole valve block device described in accordance with the claim 1, it is characterised in that: the interface of the oil input channel (17) can be with
It is arranged in the end face or bottom surface of pumping hole valve block (2).
6. filtering pumping hole valve block device described in accordance with the claim 1, it is characterised in that: the back oil road (18) and foot passage
(20) it is provided between pressure valve (22), check valve (25), pressure valve is provided between oil road (19) and foot passage (20)
(22) outer end is equipped with pressure regulation guide (23) and solenoid directional control valve (24).
7. filtering pumping hole valve block device according to claim 6, it is characterised in that: the pressure valve (22) and check valve
(25) combination settings.
8. filtering pumping hole valve block device described in accordance with the claim 1, it is characterised in that: the oil input channel (17) is connected with survey pressure
Device (26), foot passage (20) are connected with differential pressure transmitter device (21).
9. filtering the control method of pumping hole valve block device described in a kind of claim 1, it is characterised in that: solenoid directional control valve (24) is logical
Disconnected control pressure valve (22) turns off or on, and pressure regulation guide (23) adjusts oil liquid pressure；
(1) solenoid directional control valve (24) power-off makes oil liquid no pressure, and oil liquid flows back to oil cylinder by back oil road (18)；
(2) solenoid directional control valve (24) is powered, and adjusting pressure regulation guide (23) makes oil liquid boost, when oil liquid pressure is greater than working connection pressure
Power, check valve (25) are in off state；Oil liquid pressure is greater than working connection pressure, and oil liquid flows into working connection by oil road (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910075303.2A CN109798282A (en) | 2019-01-25 | 2019-01-25 | Filter pumping hole valve block device and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910075303.2A CN109798282A (en) | 2019-01-25 | 2019-01-25 | Filter pumping hole valve block device and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109798282A true CN109798282A (en) | 2019-05-24 |
Family
ID=66558849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910075303.2A Withdrawn CN109798282A (en) | 2019-01-25 | 2019-01-25 | Filter pumping hole valve block device and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109798282A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113713982A (en) * | 2021-05-24 | 2021-11-30 | 无锡一杰工程机械有限公司 | Emulsion preparation sprinkling system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201771734U (en) * | 2010-07-20 | 2011-03-23 | 济南重工股份有限公司 | Hydraulic starting device of oil pump motor |
| CN202056138U (en) * | 2011-04-12 | 2011-11-30 | 新乡平原航空技术工程有限公司 | Plate filter |
| CN202431652U (en) * | 2011-12-21 | 2012-09-12 | 南京讯联液压件有限公司 | Return oil filter with automatic oil-supplementing function |
| CN202851531U (en) * | 2012-10-13 | 2013-04-03 | 黎明液压有限公司 | Double-precision filter |
| CN103075378A (en) * | 2011-10-26 | 2013-05-01 | 北京精密机电控制设备研究所 | Filter bypass overflow valve |
| CN203362709U (en) * | 2013-07-05 | 2013-12-25 | 龙工(福建)液压有限公司 | Hydraulic one-way filter |
| CN204099346U (en) * | 2014-09-25 | 2015-01-14 | 莱芜钢铁集团有限公司 | Multi-bed filter |
| CN209539712U (en) * | 2019-01-25 | 2019-10-25 | 鼎斯（上海）液压科技有限公司 | Filter pumping hole valve block device |
-
2019
- 2019-01-25 CN CN201910075303.2A patent/CN109798282A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201771734U (en) * | 2010-07-20 | 2011-03-23 | 济南重工股份有限公司 | Hydraulic starting device of oil pump motor |
| CN202056138U (en) * | 2011-04-12 | 2011-11-30 | 新乡平原航空技术工程有限公司 | Plate filter |
| CN103075378A (en) * | 2011-10-26 | 2013-05-01 | 北京精密机电控制设备研究所 | Filter bypass overflow valve |
| CN202431652U (en) * | 2011-12-21 | 2012-09-12 | 南京讯联液压件有限公司 | Return oil filter with automatic oil-supplementing function |
| CN202851531U (en) * | 2012-10-13 | 2013-04-03 | 黎明液压有限公司 | Double-precision filter |
| CN203362709U (en) * | 2013-07-05 | 2013-12-25 | 龙工(福建)液压有限公司 | Hydraulic one-way filter |
| CN204099346U (en) * | 2014-09-25 | 2015-01-14 | 莱芜钢铁集团有限公司 | Multi-bed filter |
| CN209539712U (en) * | 2019-01-25 | 2019-10-25 | 鼎斯（上海）液压科技有限公司 | Filter pumping hole valve block device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113713982A (en) * | 2021-05-24 | 2021-11-30 | 无锡一杰工程机械有限公司 | Emulsion preparation sprinkling system |
| CN113713982B (en) * | 2021-05-24 | 2023-11-21 | 无锡一杰工程机械有限公司 | Emulsion preparation sprinkler system |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190524 |
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| WW01 | Invention patent application withdrawn after publication |