CN209539712U - Filter pumping hole valve block device - Google Patents
Filter pumping hole valve block device Download PDFInfo
- Publication number
- CN209539712U CN209539712U CN201920133062.8U CN201920133062U CN209539712U CN 209539712 U CN209539712 U CN 209539712U CN 201920133062 U CN201920133062 U CN 201920133062U CN 209539712 U CN209539712 U CN 209539712U
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- China
- Prior art keywords
- valve block
- pumping hole
- oil
- hole valve
- filter house
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Abstract
The utility model 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 the oil inlet of the utility model, 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, after foot passage is adjusted, working connection is flowed into from check valve oil outlet, or flow back to oil cylinder from oil return opening.After filter house and pumping hole the valve block integrated design of the utility model, setting pipeline is not needed between the two and is connected, circuit design space is saved, has saved cost.
Description
Technical field
The utility model relates to technical field of hydraulic pressure, especially a kind of filtering pumping hole valve block device.
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.
Utility model content
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.
Technical solution used by the utility model 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 in filter core two sides
And internal 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, mistake
Filter portion is fixedly connected with pumping hole valve block, and the oil input channel of pumping hole valve block is communicated with the outer tunnel of filter house, the internal channel of filter house with
The foot passage of pumping hole 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.
The beneficial effects of the utility model are as follows:
The utility model is mainly made of filter house and pumping hole valve block, and filter house and pumping hole valve block connect by the way that pressing plate is fixed
It connects, the oil inlet passage of pumping hole valve block is connected to the outer tunnel of filter house, the internal channel of filter house and the foot passage of pumping hole valve block
It communicates, the foot passage connection oil discharge passage and drainback passage of pumping hole valve block.Hydraulic oil in fuel tank from the utility model into
Hydraulic fluid port flows into the oil inlet passage of pumping hole valve block, then imports the annular outer passageway of filter house, after the filter element filtering of filter house,
Into the internal channel of filter house, the foot passage of pumping hole valve block is then flowed to, in foot passage after excess pressure adjusts, from unidirectional
Valve oil outlet flows into working connection, or flows back to oil cylinder from oil return opening.The filter house and pumping hole valve block of the utility model are integrally designed
Afterwards, setting pipeline is not needed between the two to connect, and is saved circuit design space, has been saved cost.The oil inlet of the utility model
Mouth can be set in side, also can be set in bottom surface, the connection design of oil inlet and oil cylinder is more flexible.
The filter core of the utility model uses cylinder sealing means, and annular groove is arranged in the periphery of filter core lower sleeve,
Flexible seals are set in groove, the required precision of filter core and pumping hole valve block mating surface is reduced, to reduce adding for filter core
Work technology difficulty.
Detailed description of the invention
Fig. 1 is the perspective view of the utility model.
Fig. 2 is the cross-sectional view of the utility model.
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 principles 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
With reference to the accompanying drawing, illustrate specific embodiment of the present utility model.
As shown in Figure 1, the filter house 1 of the utility model is fixedly connected by pressing plate 3 with pumping hole valve block 2.Such as Fig. 2, Fig. 3 institute
Show, the filter house 1 of the utility model is mainly made of shell 4, filter core 5, gland 6 and spring 7, between filter core 5 and shell 4
Annular 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 is logical
It crosses spring 7 and compresses filter core 5 downwards.Gas vent 8 is provided on gland 6, for internal gas to be discharged.Under the shell 4 of filter house 1
End is in external cylindrical surface and is provided with the first sealing ring 9 with stepped hole clearance fit corresponding in pumping hole valve block 2, cooperation；Filter core 5
Bottom is cooperated by the lower sleeve 10 of its periphery is arranged sealing device in the corresponding hole of pumping hole valve block 2 and at cooperation,
The sealing 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；Lower sleeve
10 height is higher than 17 aperture of oil input channel, so when oil liquid enters the outer tunnel 12 of filter core 5 from oil input channel 17, lower sleeve 10
The souring for bearing oil 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 of the utility model and the course of work are as follows:
As shown in Figures 1 to 5,17 one end of oil inlet passage of the pumping hole valve block 2 of the utility model connects oil inlet 14, another
End connection filter house 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, unidirectionally
Valve 25 is connected to working connection by oil outlet 16, 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
The adjustable oil liquid pressure for flowing through pressure valve 22.Survey press fitting is provided in pumping hole valve block 2 and the ipsilateral end face of oil inlet 14
26 and differential pressure transmitter device 21 are set, pressure measuring unit 26 connects with oil input channel 17, to monitor the working condition of system；Differential pressure transmitter device 21
Connect with foot passage 20, 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, after oil liquid overcomes the spring pressure of pressure valve 22,
Fuel tank is flowed back to from oil return opening 15 by back oil road 18.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 the explanation to the utility model, is not the restriction to the utility model, practical new without prejudice to this
In the case where type spirit, the utility model can make any type of modification.
Claims (8)
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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920133062.8U CN209539712U (en) | 2019-01-25 | 2019-01-25 | Filter pumping hole valve block device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920133062.8U CN209539712U (en) | 2019-01-25 | 2019-01-25 | Filter pumping hole valve block device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209539712U true CN209539712U (en) | 2019-10-25 |
Family
ID=68271593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920133062.8U Expired - Fee Related CN209539712U (en) | 2019-01-25 | 2019-01-25 | Filter pumping hole valve block device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209539712U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798282A (en) * | 2019-01-25 | 2019-05-24 | 鼎斯（上海）液压科技有限公司 | Filter pumping hole valve block device and control method |
-
2019
- 2019-01-25 CN CN201920133062.8U patent/CN209539712U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798282A (en) * | 2019-01-25 | 2019-05-24 | 鼎斯（上海）液压科技有限公司 | Filter pumping hole valve block device and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191025 Termination date: 20220125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |