CN109695490B - Device for monitoring engine oil level and automatically supplementing oil - Google Patents
Device for monitoring engine oil level and automatically supplementing oil Download PDFInfo
- Publication number
- CN109695490B CN109695490B CN201910146750.2A CN201910146750A CN109695490B CN 109695490 B CN109695490 B CN 109695490B CN 201910146750 A CN201910146750 A CN 201910146750A CN 109695490 B CN109695490 B CN 109695490B
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- oil
- engine
- detection head
- liquid level
- controller
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- 239000003921 oil Substances 0.000 title claims abstract description 197
- 239000010705 motor oil Substances 0.000 title claims abstract description 49
- 230000001502 supplementing effect Effects 0.000 title claims abstract description 31
- 238000012544 monitoring process Methods 0.000 title claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 55
- 239000007788 liquid Substances 0.000 claims abstract description 45
- 238000005070 sampling Methods 0.000 claims abstract description 24
- 238000002474 experimental method Methods 0.000 abstract description 3
- 239000013589 supplement Substances 0.000 abstract description 3
- 230000000007 visual effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/10—Indicating devices; Other safety devices
- F01M11/12—Indicating devices; Other safety devices concerning lubricant level
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/0004—Oilsumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/04—Filling or draining lubricant of or from machines or engines
- F01M11/0458—Lubricant filling and draining
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/04—Filling or draining lubricant of or from machines or engines
- F01M11/0458—Lubricant filling and draining
- F01M2011/0466—Filling or draining during running
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a device for monitoring the liquid level of engine oil and automatically supplementing the oil, which comprises an engine and an oil pan, wherein one side of the engine is provided with an oil storage tank, the oil storage tank is connected to the oil pan through a supplementing oil pipe, an oil drain pipe at the bottom of the oil pan is provided with a three-way joint, the three-way joint is respectively connected with a sampling oil pipe and a communicating oil tank through an oil pipe, the upper part of the communicating oil tank is communicated with the upper part of the oil pan through a pipeline, an upper liquid level detection head and a lower liquid level detection head are arranged in the communicating oil tank, the sampling oil pipe is provided with a sampling electromagnetic valve, the supplementing oil pipe is provided with an oil supplementing electromagnetic valve, and the device for monitoring the engine oil and automatically supplementing the oil also comprises a controller and two control switches electrically connected with the controller. The invention can automatically sample from the experimental diesel engine and automatically supplement oil, ensures the experiment of the engine running without stopping, and has the advantages of low labor intensity, high labor efficiency and truly reflecting the engine oil state when the engine runs.
Description
Technical Field
The invention relates to a device for monitoring the liquid level of engine oil and automatically supplementing the oil.
Background
In the conventional endurance test process, the oil level position of the oil pan is required to be monitored manually and dynamically, oil is manually added and sampled, and when the oil level is near a lower dividing line, oil is timely supplied to an engine to be supplied to an upper dividing line, and the means is that an oil level is observed to be near the position of the upper dividing line by pulling an oil level gauge. The oil barrels were weighed for poor quality before and after the fill volume was recorded. At present, the method does not sample once and stops once every observation, the oil level is observed by manually pulling the oil level gauge, time is wasted, the risk that the oil level is lower than a lower dividing line and the oil level is insufficient, lubrication is poor and even a cylinder is pulled and a tile is pulled is avoided, and the oil is artificially added to cause large crankcase oil mist, large breather air outlet oil content, high engine oil consumption and the like to cause fault misjudgment. Meanwhile, the engine oil is monitored every day, and an engine oil sample is required to be manually taken, so that the workload of operators is greatly increased, the labor intensity is high, and the labor efficiency is low.
Disclosure of Invention
The invention aims to solve the technical problem of providing a device for monitoring the engine oil level and automatically supplementing oil, which can automatically sample from an experimental diesel engine and automatically supplement oil, and ensure the experiment of the engine without stopping the engine, thereby improving the labor efficiency.
In order to solve the technical problems, the invention provides a device for monitoring the oil level of engine oil and automatically supplementing the oil, which comprises an engine and an oil pan connected to the engine, and is structurally characterized in that: the device for monitoring engine oil and automatically supplementing oil comprises an engine oil pan, an engine oil storage tank, an oil storage tank, a sampling electromagnetic valve, a controller, two control switches, an upper liquid level detection head and a lower liquid level detection head, wherein the liquid level of the oil storage tank is higher than that of the oil pan, the oil storage tank is connected to the oil pan through a supplementing oil pipe, a three-way joint is arranged on an oil drain pipe at the bottom of the oil pan, two oil outlet joints of the three-way joint are respectively connected with the sampling oil pipe and a communicating oil tank through oil pipes, the upper part of the communicating oil tank is communicated with the upper part of the oil pan through a pipeline so that the communicating oil tank and the oil pan form a communicating vessel, the communicating oil tank is internally provided with the upper liquid level detection head and the lower liquid level detection head which are respectively aligned with an upper scale mark and a lower scale mark on the oil pan, the sampling electromagnetic valve is arranged on the sampling oil pipe, the supplementing oil solenoid valve is arranged on the supplementing oil pipe, the device for monitoring engine oil and the engine oil automatically supplementing oil also comprises the controller and two control switches electrically connected with the controller.
The upper alarm detection head and the lower alarm detection head which are arranged at the height position higher than the upper liquid level detection head and lower alarm detection head which are arranged at the height position lower than the lower liquid level detection head are also arranged in the communicated oil tank, the upper alarm detection head and the lower alarm detection head are electrically connected with a controller, and an excessive alarm is arranged in the controller.
The lower part of the inner cavity of the oil storage tank is connected with an oil level sensor which is electrically connected with a controller, and an oil level alarm which is arranged corresponding to the oil level sensor is arranged in the controller.
The oil storage tank is provided with a liquid level meter.
And a vent pipe is arranged at the top of the oil storage tank.
And a timer for controlling the on and off of the sampling electromagnetic valve at fixed time is arranged in the controller.
After adopting the structure, the invention has the following advantages that 1) the engine oil meets the design and use requirements: when engine oil is in a lower dividing line, the engine oil is timely supplemented through control feedback, so that the engine is promoted to be in a good cooling and lubricating environment, and a series of problems caused by oil shortage are reduced; when engine oil is in an upper line position, the line of oil is automatically stopped through control feedback, and in the operation process, the secondary oil supplementing can be performed after the primary complete oil supplementing can be ensured, so that the oil is prevented from being replaced too frequently, and the working condition of the engine oil can not be truly reflected. 2) The oil filling amount is accurate, and the oil change period is convenient to calculate: the engine oil is constantly filled each time, the element content and related parameters of the engine oil are detected more accurately, and the service life of the engine oil is estimated conveniently; 3) Realizing automation to replace manual work, reducing error judgment of faults: the oil sampling device can avoid the faults of large crankcase oil mist, large breather air outlet oil content, high engine oil consumption and the like caused by excessive engine oil filling, and can realize timing and quantitative sampling through a time timer and a control valve, so that manual operation is reduced, and the oil extraction amount can be constant every time.
In conclusion, the invention can automatically sample from the experimental diesel engine and automatically supplement oil, ensures the experiment of the engine in non-stop operation, and has the advantages of low labor intensity, high labor efficiency and truly reflecting the engine oil state when the engine is operated.
Drawings
The following detailed description of specific embodiments of the invention refers to the accompanying drawings, which illustrate in further detail:
FIG. 1 is a schematic view of the structure of a preferred embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of the controller controlling various components of the embodiment of FIG. 1;
fig. 3 is a schematic circuit diagram of the controller in the embodiment of fig. 1 when performing an action.
Detailed Description
Referring to fig. 1, the present invention provides an embodiment of a device for monitoring the oil level of an engine and automatically replenishing oil, which comprises an engine and an oil pan 2 connected to the engine, wherein the specific structure of the engine is not shown in the figure, but the structure of the oil pan 2 is mainly shown, one side of the engine is provided with an oil storage tank 10 with the liquid level higher than the liquid level in the oil pan, the whole height of the oil storage tank 10 is higher than the oil pan, the oil storage tank 10 is connected to the oil pan 2 through a replenishing oil pipe 19, a tee joint 3 is arranged on an oil drain pipe at the bottom of the oil pan 2, two oil outlet joints of the tee joint 3 are respectively connected with a sampling oil pipe 4 and a communicating oil tank 5 through oil pipes, the upper part of the communicating oil tank 5 is communicated with the upper part of the oil pan through a pipeline to enable the communicating oil tank and the oil pan to form a communicating vessel, the oil level in the communicating oil tank 5 is consistent with the oil level in the oil pan 2 by utilizing the principle of the communicating vessel, an upper liquid level detection head 6 and a lower liquid level detection head 7 which are respectively arranged in high alignment with an upper scale mark and a lower scale mark on the oil pan are arranged in the communicated oil tank 5, when the oil level in the oil pan 2 is positioned between the upper scale mark and the lower scale mark, the oil level in the communicated oil tank 5 is also positioned between the upper liquid level detection head and the lower liquid level detection head, a sampling electromagnetic valve 9 is arranged on the sampling oil pipe 4, when the sampling electromagnetic valve 9 is conducted, the oil in the oil pan can be discharged through the sampling oil pipe 4, and similarly, when the sampling electromagnetic valve is closed, the sampling oil pipe does not discharge the oil any more, an oil supplementing electromagnetic valve 8 is arranged on the oil supplementing pipe 19, when the oil supplementing electromagnetic valve 8 is conducted, the oil in the oil tank 10 naturally flows downwards to the inside the oil pan through the oil supplementing pipe 19 under the action of gravity, so as to play the role of supplementing the oil, when the oil supplementing electromagnetic valve 8 is closed, the make-up oil pipe 19 does not flow out of the engine oil downward any more.
Referring to fig. 1, the device for monitoring engine oil and automatically replenishing oil further comprises a controller 11 and two control switches 18 electrically connected with the controller, the upper liquid level detection head 6 and the lower liquid level detection head 7 are respectively electrically connected with the control switches 18, and the sampling electromagnetic valve 9 and the oil replenishing electromagnetic valve 8 are electrically connected with the controller. An upper alarm detection head 12 with the height position higher than that of the upper liquid level detection head 6 and a lower alarm detection head 13 with the height position lower than that of the lower liquid level detection head 7 are also arranged in the communicated oil tank 5, the upper alarm detection head 12 and the lower alarm detection head 13 are electrically connected with a controller, and an excessive alarm 14 is arranged in the controller. The lower part of the inner cavity of the oil storage tank 10 is connected with an oil level sensor 15 which is electrically connected with a controller, and an oil level alarm 24 which is arranged corresponding to the oil level sensor is arranged in the controller. The excessive alarm and the oil level alarm adopt audible and visual alarms with different forms of structures, and the specific structures of the audible and visual alarms are the prior art and are not described in detail herein.
Referring to fig. 2 and 3, the total control circuit and the total control circuit in the present invention, in which the controller is not shown, one contact of the first relay 21 is connected in series with two control switches, one of which is connected in parallel with the other contact of the first relay 21, the detection switch 20 is connected in series with the second relay 22, the oil level check switch 25 is connected in series with the third relay 23, the oil replenishment solenoid valve 8 is electrically connected with the first relay 21 in the figure, the upper liquid level detection head 6 and the lower liquid level detection head 7 transmit signals to the controller, and the controller controls the two control switches to be in a closed or open state. When the upper liquid level detection head 6 and the lower liquid level detection head 7 cannot detect engine oil at the same time, the absence of engine oil in the oil pan is indicated, the upper liquid level detection head 6 and the lower liquid level detection head 7 transmit signals to the controller, the controller controls the two control switches to be closed, the first relay 21 is electrified to be closed, the oil supplementing electromagnetic valve 8 is electrified to be opened, and engine oil can be supplemented; when the upper liquid level detection head 6 detects engine oil and the lower liquid level detection head 7 does not detect engine oil, the engine oil in the oil pan does not reach the upper scale mark in the oil pan, at the moment, a control switch electrically connected with the lower liquid level detection head 7 is in an open state, and a control switch electrically connected with the upper liquid level detection head is in a closed state, so that the relay is still electrified and closed, the oil supplementing electromagnetic valve 8 is electrified and opened, and engine oil can be supplemented; when the upper liquid level detection head 6 and the lower liquid level detection head 7 detect engine oil at the same time, the engine oil in the oil pan is indicated to meet the requirement, at the moment, the two control switches are disconnected, the first relay 21 is powered off, the oil supplementing electromagnetic valve 8 is powered off, and the engine oil is not supplemented. From the above description, it can be seen that the present invention can ensure that the engine oil in the running engine maintains a proper amount of engine oil in real time. When an abnormal condition occurs, namely the engine oil level in the oil pan exceeds the upper part of the upper alarm detection head 12 or the lower part of the lower alarm detection head 13, the controller receives the signal of the alarm detection head, the detection switch 20 in the controller is closed, the second relay 22 is electrified, and the controller controls the excessive alarm to carry out audible and visual alarm. From the above description, it can be seen that the present invention can monitor the amount of engine oil in the running engine in real time, thereby preventing accidents. When the oil level sensor 15 in the oil storage tank 10 detects that the oil amount is too small, the oil level check switch 25 electrically connected with the oil level sensor 15 is closed, the third relay 23 is closed, the oil level alarm in the controller can give out audible and visual alarm, and the situation that the oil pan cannot be continuously refueled can be prevented.
Referring to fig. 1, the oil storage tank 10 is provided with a liquid level meter 16, and the top of the oil storage tank is provided with a vent pipe 17, so that the oil level in the oil storage tank 10 can be observed manually, and accidents caused by damage of electric components can be prevented. The controller is internally provided with a timer for controlling the on and off of the sampling electromagnetic valve 9 at regular time, the sampling electromagnetic valve 9 can be opened for a period of time at regular time through the timing control of the timer, and engine oil in an online running engine is accurately collected, so that the service condition of the engine oil is accurately monitored, and an accurate basis is provided for the running detection of the engine.
The above-mentioned specific structural forms of the present invention are not limited to the above-mentioned embodiments, and those skilled in the art will recognize that equivalent variations and component substitutions based on the specific structures of the present invention are within the scope of the present invention.
Claims (5)
1. Device for monitoring the oil level of an engine and for automatically replenishing the oil, comprising an engine and an oil pan (2) connected to the engine, characterized in that: an oil storage tank (10) with a liquid level higher than that in the oil pan is arranged on one side of the engine, the oil storage tank (10) is connected to the oil pan (2) through a supplementing oil pipe, a three-way joint (3) is arranged on an oil drain pipe at the bottom of the oil pan (2), two oil outlet joints of the three-way joint are respectively connected with a sampling oil pipe (4) and a communicating oil tank (5) through oil pipes, the upper part of the communicating oil tank (5) is communicated with the upper part of the oil pan through a pipeline so that the communicating oil tank and the oil pan form a communicating vessel, an upper liquid level detection head (6) and a lower liquid level detection head (7) which are respectively arranged in high alignment with an upper scale mark and a lower scale mark on the oil pan are arranged in the communicating oil tank (5), a sampling electromagnetic valve (9) is arranged on the sampling oil pipe (4), an oil supplementing electromagnetic valve (8) is arranged on the supplementing oil pipe, the device for monitoring the oil level of the engine and automatically supplementing oil also comprises a controller (11) and two control switches (18) electrically connected with the controller, and the upper liquid level detection head (6) and the lower liquid level detection head (7) are respectively electrically connected with the control switches (18); an upper alarm detection head (12) with the height position higher than that of the upper liquid level detection head (6) and a lower alarm detection head (13) with the height position lower than that of the lower liquid level detection head (7) are also arranged in the communicated oil tank (5), the upper alarm detection head (12) and the lower alarm detection head (13) are electrically connected with a controller, and an excessive alarm is arranged in the controller; one contact of the first relay (21) is connected with two control switches in series, one control switch is connected with the other contact of the first relay (21) in parallel, the oil supplementing electromagnetic valve (8) is electrically connected with the first relay (21), the upper liquid level detection head (6) and the lower liquid level detection head (7) transmit signals to a controller, and the controller controls the two control switches to be in a closed state or an open state.
2. The apparatus for monitoring engine oil level and automatically replenishing oil of an engine of claim 1, wherein: the lower part of the inner cavity of the oil storage tank (10) is connected with an oil level sensor (15) which is electrically connected with a controller, and the controller is internally provided with an oil level alarm which is correspondingly arranged with the oil level sensor.
3. The apparatus for monitoring engine oil level and automatically replenishing oil according to claim 1 or 2, wherein: the oil storage tank (10) is provided with a liquid level meter (16).
4. The apparatus for monitoring engine oil level and automatically replenishing oil according to claim 1 or 2, wherein: the top of the oil storage tank is provided with a vent pipe (17).
5. The apparatus for monitoring engine oil level and automatically replenishing oil according to claim 1 or 2, wherein: a timer for controlling the on and off of the sampling electromagnetic valve (9) at fixed time is arranged in the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910146750.2A CN109695490B (en) | 2019-02-27 | 2019-02-27 | Device for monitoring engine oil level and automatically supplementing oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910146750.2A CN109695490B (en) | 2019-02-27 | 2019-02-27 | Device for monitoring engine oil level and automatically supplementing oil |
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| Publication Number | Publication Date |
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| CN109695490A CN109695490A (en) | 2019-04-30 |
| CN109695490B true CN109695490B (en) | 2024-03-15 |
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| CN201910146750.2A Active CN109695490B (en) | 2019-02-27 | 2019-02-27 | Device for monitoring engine oil level and automatically supplementing oil |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111042893A (en) * | 2019-12-20 | 2020-04-21 | 中联重科股份有限公司 | Automatic engine oil filling control method and system for engine and engineering machinery |
| CN112796851A (en) * | 2021-01-06 | 2021-05-14 | 三一重机有限公司 | Automatic engine oil replacing system and method |
| CN112761753B (en) * | 2021-01-14 | 2022-04-29 | 东风商用车有限公司 | Engine oil accurate filling mechanism of engine and filling method thereof |
| CN114810278B (en) * | 2022-03-23 | 2023-04-25 | 东风柳州汽车有限公司 | Automatic oil content supplementing method and oiling system for engine |
| CN115248070B (en) * | 2022-09-23 | 2022-12-06 | 北京航空航天大学 | Multi-standard electromagnetic valve oil charge testing method |
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