CN208918969U - A kind of differential filter control system - Google Patents
A kind of differential filter control system Download PDFInfo
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- CN208918969U CN208918969U CN201821601866.8U CN201821601866U CN208918969U CN 208918969 U CN208918969 U CN 208918969U CN 201821601866 U CN201821601866 U CN 201821601866U CN 208918969 U CN208918969 U CN 208918969U
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- pressure transmitter
- filter
- temperature sensor
- microcontroller
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Abstract
The utility model provides a kind of differential filter control system, comprising: microcontroller, first pressure transmitter, second pressure transmitter, temperature sensor, hydraulic filter and engine；Engine is connect with the hydraulic pump in hydraulic system locating for hydraulic filter；Hydraulic filter oil inlet is equipped with first pressure transmitter, and hydraulic filter oil outlet is equipped with second pressure transmitter and temperature sensor；First pressure transmitter, second pressure transmitter, temperature sensor and engine are connect with microcontroller respectively.In the utility model, microcontroller detects the pressure difference of hydraulic filter oil inlet and oil outlet by pressure transmitter, the revolving speed of the temperature information control engine of the hydraulic filter inner fluid of combination temperature sensor detection, guarantee that filter operates normally, it avoids filtered oil liquid from entering the Hydraulic Elements such as control valve and oil cylinder from bypass, causes hydraulic system fault.
Description
Technical field
The utility model relates to hydraulic system field more particularly to a kind of differential filter control systems.
Background technique
Major Systems of the hydraulic system as control action executing agency in engineering machinery, the requirement to oil cleanliness are got over
Come higher, it is therefore desirable to system filtering is carried out using high quality filter, it is clean to protect oil liquid.It at present would generally in hydraulic system
Difference alarming functional filters with pressure are equipped with, when system pressure difference reaches setting value, filter warning note carries out filter element replacing, but
It is current filtration system is only to play the role of warning note.If system pressure difference alarm carries out filter element replacing not in time,
Filter core clogging can be increasingly severe after a certain period of time, continues to use and will appear by-passing valve opening, at this time filtered oil liquid
It will bypass into the Hydraulic Elements such as control valve and oil cylinder, filtration system failure, it is easy to there is the system failure, once occur clear
Cleanliness failure can not be retrieved.
In addition, the case where there are also one kind is likely to occur oil liquid bypass filtration inefficiencies not can avoid yet, that is, when machine exists
When temperature lower region works, oil liquid temperature is relatively low when machine just starts to start, and oil viscosity is larger at this time, flows through system mistake
Larger pressure difference is generated when filtering filter core, causes oil liquid to bypass from by-passing valve, since cleanliness issues cause the system failure.
Therefore at present apparently, both the above phenomenon will lead to oil liquid bypass problem, and not can avoid, existing defects how
Avoiding neglecting due to artificial origin cold start under replacement filter core not in time and cold environmental conditions leads to filtered oil
Liquid bypass problem is urgently to be resolved at present.
Summary of the invention
In order to overcome the deficiencies in the prior art described above, the utility model provides a kind of differential filter control system, comprising:
Microcontroller, first pressure transmitter, second pressure transmitter, temperature sensor, hydraulic filter and engine；
Engine is connect with the hydraulic pump in hydraulic system locating for hydraulic filter, and hydraulic filter oil inlet is equipped with the
One pressure transmitter, hydraulic filter oil outlet are equipped with second pressure transmitter and temperature sensor；
First pressure transmitter, second pressure transmitter, temperature sensor and engine are connect with microcontroller respectively.
Preferably, hydraulic filter oil inlet is equipped with the first fixed hole, and first pressure transmitter is fixed logical by first
Hole is fixed on hydraulic transducer, and first pressure transmitter end of probe is set in hydraulic filter through the first fixed hole
Portion.
Preferably, hydraulic filter oil outlet is equipped with the second fixed hole and third fixed hole, second pressure transmitter
It is fixed on hydraulic transducer by the second fixed hole, second pressure transmitter end of probe is set to through the second fixed hole
Inside hydraulic filter；Temperature sensor is fixed on hydraulic transducer by third fixed hole, temperature sensor end of probe
It is fixed on hydrostatic sensor through third fixed hole.
Preferably, first pressure transmitter and the first fixed hole junction, second pressure transmitter and second are fixed logical
Hole junction, temperature sensor and third fixed hole junction are equipped with sealing ring.
Preferably, the utility model further include: touch screen and buzzer siren；
Touch screen and buzzer siren are connect with micro-controller communications respectively.
Preferably, the utility model further include: gsm module and mobile terminal；
Microcontroller is connect by gsm module with communication of mobile terminal.
Preferably, microcontroller uses AT89C52 type microcontroller.
As can be seen from the above technical solutions, the utility model has the advantage that
In the utility model, microcontroller detects the pressure of hydraulic filter oil inlet and oil outlet by pressure transmitter
Difference, the revolving speed of the temperature information control engine of the inner fluid of the hydraulic filter of combination temperature sensor detection, guarantees filtering
Device operates normally, and filtered oil liquid is avoided to enter the Hydraulic Elements such as control valve and oil cylinder from bypass, causes hydraulic system event
Barrier；
Oil inlet is directly provided with first pressure transmitter on hydraulic filter, and oil outlet is directly provided with second pressure transmitter
And temperature sensor, testing result are more acurrate.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model, attached drawing needed in description will be made below
Simply introduce, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention, for this field
For those of ordinary skill, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is utility model diagram.
Wherein, 1, hydraulic filter, 2, first pressure transmitter, 3, second pressure transmitter, 4, temperature sensor,
5, microcontroller, 6, engine, 7, touch screen, 8, gsm module, 9, mobile terminal.
Specific embodiment
It, below will be with tool to enable the goal of the invention, feature, advantage of the utility model more obvious and understandable
The examples and drawings of body are clearly and completely described the technical solution of the utility model protection, it is clear that retouched below
The embodiment stated is only the utility model a part of the embodiment, and not all embodiment.Based on the embodiment in this patent,
All other embodiment obtained by those of ordinary skill in the art without making creative efforts belongs to this specially
The range of benefit protection.
Embodiment one:
The present embodiment provides a kind of differential filter control systems, comprising: microcontroller 5, first pressure transmitter 2, second
Pressure transmitter 3, temperature sensor 4, hydraulic filter 1 and engine 6；Microcontroller 5 uses AT89C52 type microcontroller.
Engine is connect with the hydraulic pump in hydraulic system locating for hydraulic filter (1), and motivation 6 drives hydraulic pump work
Make, hydraulic system realizes oil circulation under hydraulic pumping action, hydraulic filter 1 is provided in hydraulic system；Hydraulic filter 1
Oil inlet is equipped with the first fixed hole, and first pressure transmitter 2 is fixed on hydraulic transducer by the first fixed hole, and first
2 end of probe of pressure transmitter is set to inside hydraulic filter 1 through the first fixed hole.1 oil outlet of hydraulic filter is equipped with
Second fixed hole and third fixed hole, second pressure transmitter 3 are fixed on hydraulic transducer by the second fixed hole,
3 end of probe of second pressure transmitter is set to inside hydraulic filter 1 through the second fixed hole；Temperature sensor 4 passes through the
Three fixed holes are fixed on hydraulic transducer, and 4 end of probe of temperature sensor is fixed on hydraulic sensing through third fixed hole
On device.First pressure transmitter 2 and the first fixed hole junction, second pressure transmitter 3 and the second fixed hole junction,
Temperature sensor 4 and third fixed hole junction are equipped with sealing ring.Pressure transmitter is directly arranged on hydraulic filter,
So that testing result is more accurate.
First pressure transmitter 2, second pressure transmitter 3, temperature sensor 4 and engine 6 connect with microcontroller 5 respectively
It connects.
Embodiment two:
The present embodiment is roughly the same with embodiment one, the difference is that: the present embodiment further include: touch screen 7 and bee
Ring alarm；Touch screen 7 and buzzer siren are communicated to connect with microcontroller 5 respectively.Touch screen 7 is for oil in display filter
The temperature information and filter inlet outlet pressure differential situation of liquid, it may also be used for receive setting, the pressure difference alarm threshold value of temperature threshold
Setting and engine speed corresponding control instruction.
Embodiment three: the present embodiment is roughly the same with embodiment two, the difference is that: the present embodiment further include: GSM
Module 8 and mobile terminal 9；Microcontroller 5 is communicated to connect by gsm module 8 and mobile terminal 9.Mobile terminal in the present embodiment
For the mobile phone of testing staff, microcontroller 5 passes through gsm module for the relevant temperature information of hydraulic filter 1.Differential pressure information, hair
Motivation rotary speed information, warning message are timely feedbacked to the mobile phone of testing staff, and testing staff can be handled in time accordingly according to information
The case where, avoid the generation of serious conditions.
The concrete scheme of the utility model is using hydraulic filter pressure difference alarm signal and temperature signal as control
Signal controls engine speed by microcontroller, and realizing reduces engine speed after filter differential pressure alarm, until not reporting
Until police, in this way it is prevented that the oil liquid bypass filtered when filter core blocking or cold oil start flow to hydraulic valve and oil
The Hydraulic Elements of cylinder, minimum speed limit can be idling.
When working under normal temperature conditions, filter differential pressure alarm condition, approximately as: new filter core begins to use rank
Section, at this time regardless of engine filter under what revolving speed not will call the police, full complete machine can work normally in the range of speeds.When
After a period of use, since the pollutant that filter core intercepts leads to part filter net jam, filter in the case of large throttle is appeared in
Pressure difference alarm, this alarm show to have arrived the normal filter element replacing time, it is proposed that replacement, if related personnel, which does not take, more renews filter core
Measure, to prevent filter from, since the excessive by-passing valve of pressure difference is opened, can control by the alarm signal under the conditions of large throttle
Engine speed reduces engine speed, until filter is not alarmed；Reduction of speed is worked by vehicle after control.Work as filter
After continuing to use one section, oil in engine door and large throttle are all alarmed, if it is so whole still to take no action to replacement filter core
Throttle is continued to reduce by vehicle, is controlled in the range of speeds that do not alarm, and guarantees that hydraulic system works under conditions of not bypassing, directly
It is idling mode to revolving speed, engine can not work under idling mode, remind operator that must carry out filter element replacing.But
It is in vehicle operational process, microcontroller is timely feedbacked relevant information to the mobile phone of related personnel, relevant people by gsm module
Member's replacement in time, to guarantee the normal operation of hydraulic system.
When working under cryogenic, pressure difference alarm condition approximately as: it is lower just to have started vehicle vehicle oil temperature, may go out
Existing small throttle is alarmed to large throttle, and alarm at this time, which is that oil temperature is too low, to be caused, and is worked again after need to carrying out hot vehicle, this stage can lead to
Microcontroller is crossed to control engine speed, it is covert to force driver Re Che by speed control under idle condition, it reduces
By-passing valve unlatching causes system clean degree failure.When hot vehicle after a certain period of time, oil temperature can increase, alarm revolving speed also can be therewith
Variation, microcontroller control engine carry out the operation of corresponding revolving speed.It is transported under microcontroller control hydraulic filter normal condition
Row, prevents filtered oil liquid and enters Hydraulic Elements to cause failure, and this control method is while preventing by-passing valve and opening
Also improve the service life of filter core.
Microcontrollers monitor filter differential pressure alarm signal monitors engine speed simultaneously after vehicle starting, if at this time
Filter alarm free so vehicle can work normally under full speed conditions, if filter has alarm that will execute engine at this time
Reduction of speed control, it is minimum to be limited in idling until alarm until revolving speed limitation is reduced to.Controller in entire control process
Monitor engines in real time revolving speed and filter differential pressure alarm condition are alarmed with pressure difference and are changed, and maximum speed control also gradually becomes
Change.
The utility model may be implemented in a disguised form to force user Re Che under cold oil condition or plugged filter critical condition,
Guarantee that vehicle does not work under the conditions of dirty oil bypass, reduces hydraulic system since oil cleanliness causes failure, mention simultaneously
The service life of high filter core.
The specification and claims of the utility model and term " first ", " second ", " third " in above-mentioned attached drawing
(if present)s such as " the 4 " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It answers
The data that the understanding uses in this way are interchangeable under appropriate circumstances, so that the embodiments of the present invention described herein can
Implemented with the sequence other than those of illustrating or describing herein.In addition, term " includes " and " having " and they
Any deformation, it is intended that cover and non-exclusive include.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (7)
1. a kind of differential filter control system characterized by comprising microcontroller (5), first pressure transmitter (2), second
Pressure transmitter (3), temperature sensor (4), hydraulic filter (1) and engine (6)；
Hydraulic filter (1) is equipped in engine (6)；Hydraulic filter (1) oil inlet is equipped with first pressure transmitter (2), liquid
Filter (1) oil outlet is pressed through equipped with second pressure transmitter (3) and temperature sensor (4)；
First pressure transmitter (2), second pressure transmitter (3), temperature sensor (4) and engine (6) respectively with microcontroller
Device (5) connection.
2. differential filter control system according to claim 1, which is characterized in that
Hydraulic filter (1) oil inlet is equipped with the first fixed hole, and first pressure transmitter (2) is fixed by the first fixed hole
In on hydraulic transducer, first pressure transmitter (2) end of probe is set in hydraulic filter (1) through the first fixed hole
Portion.
3. differential filter control system according to claim 1, which is characterized in that
Hydraulic filter (1) oil outlet is equipped with the second fixed hole and third fixed hole, and second pressure transmitter (3) passes through the
Two fixed holes are fixed on hydraulic transducer, and second pressure transmitter (3) end of probe is set to liquid through the second fixed hole
It is internal to press through filter (1)；Temperature sensor (4) is fixed on hydraulic transducer by third fixed hole, temperature sensor (4)
End of probe is fixed on hydrostatic sensor through third fixed hole.
4. differential filter control system according to claim 2 or 3, which is characterized in that
First pressure transmitter (2) is connect with the first fixed hole junction, second pressure transmitter (3) with the second fixed hole
Place, temperature sensor (4) and third fixed hole junction are equipped with sealing ring.
5. differential filter control system according to claim 1, which is characterized in that
Further include: touch screen (7) and buzzer siren；
Touch screen (7) and buzzer siren are communicated to connect with microcontroller (5) respectively.
6. differential filter control system according to claim 1, which is characterized in that
Further include: gsm module (8) and mobile terminal (9)；
Microcontroller (5) is communicated to connect by gsm module (8) and mobile terminal (9).
7. differential filter control system described according to claim 1 or 5 or 6, which is characterized in that microcontroller (5) uses
AT89C52 type microcontroller (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821601866.8U CN208918969U (en) | 2018-09-29 | 2018-09-29 | A kind of differential filter control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821601866.8U CN208918969U (en) | 2018-09-29 | 2018-09-29 | A kind of differential filter control system |
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| Publication Number | Publication Date |
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| CN208918969U true CN208918969U (en) | 2019-05-31 |
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ID=66707852
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821601866.8U Active CN208918969U (en) | 2018-09-29 | 2018-09-29 | A kind of differential filter control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112729785A (en) * | 2020-12-16 | 2021-04-30 | 潍柴动力股份有限公司 | Filter element fault detection method, device, equipment, medium and product |
-
2018
- 2018-09-29 CN CN201821601866.8U patent/CN208918969U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112729785A (en) * | 2020-12-16 | 2021-04-30 | 潍柴动力股份有限公司 | Filter element fault detection method, device, equipment, medium and product |
| CN112729785B (en) * | 2020-12-16 | 2022-07-19 | 潍柴动力股份有限公司 | Filter element fault detection method, device, equipment, medium and product |
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