CN111946418B - External safe intelligent lubricating system and method for diesel engine with long-term stagnation and intermittent use - Google Patents
External safe intelligent lubricating system and method for diesel engine with long-term stagnation and intermittent use Download PDFInfo
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- CN111946418B CN111946418B CN202010743497.1A CN202010743497A CN111946418B CN 111946418 B CN111946418 B CN 111946418B CN 202010743497 A CN202010743497 A CN 202010743497A CN 111946418 B CN111946418 B CN 111946418B
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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
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
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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
- F01M1/00—Pressure lubrication
- F01M1/16—Controlling lubricant pressure or quantity
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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
- F01M1/00—Pressure lubrication
- F01M1/18—Indicating or safety devices
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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
- F01M1/00—Pressure lubrication
- F01M1/18—Indicating or safety devices
- F01M1/20—Indicating or safety devices concerning lubricant pressure
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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
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
- F01M2001/0207—Pressure lubrication using lubricating pumps characterised by the type of pump
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention belongs to the technical field of an explosion-proof diesel engine lubricating system; the invention provides an external safe intelligent lubricating system and a method for a long-term stop intermittent use diesel engine, wherein the control end of a reversing valve is connected with an engine oil pressure gauge, an engine oil filter core, a turbocharger and a main oil duct of an original lubricating system of the diesel engine, the reversing valve is connected with an air source, the air source is also connected with a diesel engine starting device, the lubricating system is connected with the lubricating system of the original machine and used for monitoring the lubricating condition in an intermittent diesel engine body used for long-term stop, and the lubricating system is started immediately when the engine oil pressure of the diesel engine is abnormal, so that the lubrication of all parts in the diesel engine is protected, and the faults are avoided.
Description
Technical Field
The invention relates to the technology of an explosion-proof diesel engine lubricating system, in particular to an external safe intelligent lubricating system and method for a diesel engine which is used intermittently and is stagnant for a long time.
Background
The working condition of the heavy explosion-proof vehicle in a moving and face-reversing project under a coal mine is severe, the parking time of a warehouse is very long, and when the vehicle is restarted, all friction parts in the diesel engine are in a dry friction state, and the heavy explosion-proof vehicle is generally used for 2-3 times a year and about 1 month every time; the rest time is about 9-10 months and the storehouse is in a stop state. The original oil films of all friction parts in the diesel engine are already invalid; the engine oil filter core is externally arranged at the position of the whole vehicle, which is convenient to replace, the engine oil filter core is connected with the diesel engine through a long rubber tube, and the length of the rubber tube is about 2.5-3 m. When a diesel engine parked for a long time is restarted, the oil pump of the diesel engine needs to rotate for 3-4 seconds to convey the engine oil to the crankshaft and the cam of the diesel engine, and during the period, all friction parts of the diesel engine are in a dry friction state, the large and small bearing bushes can be scratched, and the faults of the crankshaft, the shaft and the bearing bushes can be caused in severe cases. When the diesel engine is stopped, the turbocharger turbine still runs at a high speed for a period of time due to inertia, the turbine needs oil lubrication during the period of time, but the oil pump of the diesel engine stops working and cannot provide lubricating oil, so that the turbine part of the turbocharger is in failure.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an external safe and intelligent lubricating system and method for a diesel engine with long-term stagnation and intermittent use.
In order to achieve the purpose, the invention provides the following technical scheme:
an external safe intelligent lubricating system for a diesel engine with long-term stagnation and intermittent use comprises an original diesel engine lubricating system for normal lubrication in the running process after a vehicle is started, wherein the original diesel engine lubricating system comprises an oil pump, an oil filter core, a turbocharger, a main oil duct and an oil pressure gauge, and also comprises an external safe intelligent lubricating system which is used for pre-lubricating and delaying the lubrication of each friction part in the diesel engine and is arranged outside the diesel engine, the external safe intelligent lubricating system comprises a pneumatic oil pump, a reversing valve, an air source and a diesel engine starting device, the pneumatic oil pump and the oil pump are arranged in parallel, the control end of the reversing valve for controlling the pneumatic oil pump is connected with the oil pressure gauge, the oil filter core, the turbocharger and the main oil duct of the original diesel engine lubricating system, the reversing valve is connected with the air source, and the air source is also connected with the diesel engine starting device, the diesel engine starting device controls the oil pump.
Furthermore, the external safe intelligent lubricating system also comprises a first electromagnetic valve, a second electromagnetic valve, a one-way valve and a switch valve, wherein the outlet end of the pneumatic motor oil pump is connected with the one-way valve and then connected with the engine oil pump in parallel, the outlet end of the reversing valve is connected with the control end of the pneumatic motor oil pump, the inlet end of the reversing valve is connected with the outlet end of the second electromagnetic valve, the inlet end of the second electromagnetic valve is connected with the outlet end of the switch valve, the outlet end of the switch valve is also simultaneously connected with a diesel engine starting device, and the inlet end of the switch valve is connected with an air source.
Further, the pneumatic motor oil pump is connected in parallel with a first overflow valve.
A long-term stagnation intermittent use diesel engine external safe intelligent lubrication method, use diesel engine external safe intelligent lubrication system to finish on the basis of long-term stagnation intermittent use, when the long-term stagnation diesel engine restarts, open the on-off valve, first solenoid valve and second solenoid valve are energized at the same time, the gas in the air supply enters first solenoid valve and second solenoid valve separately through the pipeline in the process of diesel engine self-checking, the gas through the second solenoid valve backs up the switching-over valve, the pneumatic engine oil pump begins to work, the engine oil is drawn from the oil pan and enters the main oil gallery of the diesel engine through the check valve and the engine oil filter core of the original engine lubrication system machine of the diesel engine to provide the pre-lubrication for the crankshaft, cam lubrication and turbocharger of the diesel engine, the switching-over valve switches over, the pneumatic engine oil pump stops working; meanwhile, the other path of gas passes through a switch valve and a first electromagnetic valve to start a diesel engine starting device, the diesel engine starts to run, an oil pump of the diesel engine runs normally, engine oil is extracted from an oil pan and flows to an engine oil filter core to provide lubricating engine oil for a main oil gallery of the diesel engine to lubricate a crankshaft, a cam and a turbocharger of the diesel engine; when the engine oil pressure is suddenly reduced, the reversing valve is switched at any time, and the pneumatic engine oil pump is started to provide lubricating engine oil for the diesel engine; when the diesel engine stops working, the oil pump stops running, the oil pressure is reduced, the reversing valve switches the gas path, the pneumatic motor oil pump is started to provide delay lubrication for the turbocharger, and the delay time is set by the control circuit of the second electromagnetic valve.
In conclusion, the invention has the following beneficial effects:
the invention is mainly used for heavy explosion-proof vehicles with moving and inverted surfaces, long-period stagnation and intermittent use of the external safe intelligent lubricating system device of the diesel engine to provide pre-lubricating engine oil for the interior of the diesel engine in advance, and the occurrence of the fault of the bearing holding of the crankshaft is prevented. When the diesel engine is stopped and the turbocharger turbine runs at high speed by inertia, the invention provides delayed engine oil lubrication for the turbine and prevents the turbocharger from wearing and breaking down. When the diesel engine normally works after being started, the lubricating device can be used for monitoring the lubricating condition in the diesel engine body which is used intermittently and stagnated for a long period, and once the abnormal oil pressure of the diesel engine is found, the external safe intelligent lubricating system device is immediately started to protect the lubrication of all parts in the diesel engine and avoid faults.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is a flow chart of the present invention.
In the figure: the method comprises the following steps of 1-gas source, 2-switch valve, 3-first electromagnetic valve, 4-second electromagnetic valve, 5-diesel engine starting device, 6-reversing valve, 7-first overflow valve, 8-pneumatic engine oil pump, 9-one-way valve, 10-oil bottom shell, 11-second overflow valve, 12-diesel engine body engine oil pump, 13-engine oil filter core, 14-turbocharger, 15-main oil gallery and 16-engine oil pressure gauge.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 1, the invention discloses a safe and intelligent lubricating system of a diesel engine with long-term stagnation and intermittent use, which comprises an original diesel engine lubricating system for normal lubrication in the running process after a vehicle is started, and also comprises an external safe and intelligent lubricating system which is used for pre-lubricating and delaying the lubrication of each friction part in the diesel engine and is arranged outside the diesel engine, wherein the external safe and intelligent lubricating system comprises a pneumatic engine oil pump 8, a reversing valve 6, an air source 1 and a diesel engine starting device 5, the pneumatic engine oil pump 8 is connected with an oil pump 12 in parallel, the pneumatic engine oil pump 8 is connected with a first overflow valve 7 in parallel, the control end of the reversing valve 6 for controlling the pneumatic engine oil pump 8 is connected with an engine oil pressure gauge 16, an engine oil filter element 13, a turbocharger 14 and a main oil duct 15 of the original diesel engine lubricating system, the reversing valve 6 is connected with the air source 1, and the air source is also connected with the diesel engine starting device 5, the diesel engine starting device controls the oil pump 12; the overflow valve can be a common overflow valve sold on the market, when the pressure of the pneumatic oil pump 8 reaches a limit value, the pressure is relieved through the first overflow valve 7, the pressure limit value is set to be 0.2MPa under the general condition, and the pressure relief valve can be adjusted according to the actual requirement in the actual use process.
The invention also discloses a long-term stagnation intermittent use diesel engine external safe intelligent lubrication method, based on the long-term stagnation intermittent use diesel engine external safe intelligent lubrication system, the long-term stagnation diesel engine, when restarting, opening the switch valve 2, meanwhile, the first electromagnetic valve 3 and the second electromagnetic valve 4 are powered, the gas in the gas source 1 in the diesel engine self-checking process respectively enters the first electromagnetic valve 3 and the second electromagnetic valve 4 through the pipeline, the reversing valve 6 is opened by the gas of the second electromagnetic valve 4, the pneumatic oil pump 8 starts working, the engine oil is pumped from the oil sump 10, passes through the check valve 9 and the engine oil filter element 13 of the original diesel engine lubrication system machine, enters the main oil duct 15 of the diesel engine to provide pre-lubrication for the crankshaft, the cam lubrication and the turbocharger 14 of the diesel engine, when the engine oil pressure gauge 16 reaches the lubrication pressure of the diesel engine, the reversing valve 6 is switched, the pneumatic oil pump 8 stops working, so that the fault of the diesel engine caused by dry friction due to the damage of a lubricating oil film can be prevented; meanwhile, the other path of gas passes through the switch valve 2 and the first electromagnetic valve 3 to start the diesel engine starting device 5, the diesel engine starts to run, the oil pump 12 of the diesel engine runs normally, the engine oil is extracted from the oil pan 10 and flows to the engine oil filter element 13 to provide lubricating oil for the diesel engine main oil duct 15 to lubricate a crankshaft and a cam of the diesel engine and lubricate the turbocharger 14.
During the normal working period of the diesel engine, the lubricating state of the diesel engine is monitored through the reversing valve 6, when the engine oil pressure is suddenly reduced, the reversing valve 6 is switched at any time, the pneumatic engine oil pump 8 is started to provide lubricating engine oil for the diesel engine, and the purpose of monitoring and protecting the diesel engine can be achieved by utilizing the reversing valve 6; when the diesel engine stops working, the oil pump 12 stops working, the oil pressure is reduced, the reversing valve 6 switches the air passage, the pneumatic oil pump 8 is opened to provide delay lubrication for the turbocharger 14, and the delay time is set by the control circuit of the second electromagnetic valve 4, so that the phenomenon that the turbocharger 14 has faults due to high-speed running of the diesel engine oil pump 12 after the diesel engine stops working is prevented, the service life of the diesel engine is prolonged, and the working efficiency is improved.
The diesel engine starting system comprises a diesel engine starting device 5, the diesel engine starting device 5 is communicated with a switch valve 2 through a first electromagnetic valve 3, all parts in the diesel engine starting system are connected through air pipes, the air pipes are fast-inserting air pipes, and the air pipes with proper specifications can be selected according to actual requirements.
The lubricating system of the original machine of the diesel engine is connected with the lubricating system of the original machine at 3 positions, namely the joint of the reversing valve 6 and the main oil duct 15, the joint of the outlet of the one-way valve 9 and the engine oil filter element 13 and the joint of the pneumatic engine oil pump 8 and the oil pan 10, and the lubricating system of the original machine of the diesel engine keeps the original connecting mode. In fig. 1, a second overflow valve 11, an oil pump 12, an oil filter 13, a turbocharger 14, a main oil gallery 15, an oil pressure gauge 16 and an oil pan 10 in a dashed frame jointly form a lubricating system of an original diesel engine.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (3)
1. An external safe intelligent lubricating system for a long-term stagnation intermittent use diesel engine, which comprises an original diesel engine lubricating system for normal lubrication in the process of running after a vehicle is started, wherein the original diesel engine lubricating system comprises an oil pump (12), an oil filter core (13), a turbocharger (14), a main oil duct (15) and an oil pressure gauge (16), and is characterized in that the original diesel engine lubricating system also comprises an external safe intelligent lubricating system which is used for pre-lubricating and delaying the lubrication of all friction parts in the diesel engine and is arranged outside the diesel engine, the external safe intelligent lubricating system comprises a pneumatic oil pump (8), a reversing valve (6), an air source (1) and a diesel engine starting device (5), the pneumatic oil pump (8) and the oil pump (12) are arranged in parallel, the control end of a reversing valve (6) for controlling the pneumatic oil pump (8) is connected with an oil pressure gauge (16), an oil filter core (13), a turbocharger (14) and a main oil duct (15) of an original lubricating system of the diesel engine, the reversing valve (6) is connected with an air source (1), the air source is also connected with a diesel engine starting device (5), and the diesel engine starting device controls the oil pump (12);
the external safe intelligent lubricating system further comprises a first electromagnetic valve (3), a second electromagnetic valve (4), a one-way valve (9) and a switch valve (2), the outlet end of the pneumatic oil pump (8) is connected with the one-way valve (9) and then connected with an oil pump (12) in parallel, an oil filter core (13) is connected, the control end of the pneumatic oil pump (8) is connected with the outlet end of a reversing valve (6), the inlet end of the reversing valve (6) is connected with the outlet end of the second electromagnetic valve (4), the inlet end of the second electromagnetic valve (4) is connected with the outlet end of the switch valve (2), the outlet end of the switch valve (2) is also connected with a diesel engine starting device (5), and the inlet end of the switch valve (2) is connected with an air source (1).
2. The external safe and intelligent lubricating system for the long-term stagnation intermittent diesel engine according to claim 1, characterized in that the pneumatic oil pump (8) is connected with a first overflow valve (7) in parallel.
3. The external safe and intelligent lubricating method for the diesel engine with long-term stagnation and intermittent use is completed by using the external safe and intelligent lubricating system for the diesel engine with long-term stagnation and intermittent use according to claim 1, and is characterized in that: a. when the diesel engine with long-period stagnation is restarted, the switch valve (2) is opened, meanwhile, the first electromagnetic valve (3) and the second electromagnetic valve (4) are powered on, gas in a gas source (1) in the self-checking process of the diesel engine respectively enters the first electromagnetic valve (3) and the second electromagnetic valve (4) through pipelines, the reversing valve (6) is opened by gas of the second electromagnetic valve (4), the pneumatic oil pump (8) starts to work, engine oil is pumped from the oil pan (10) and enters the main oil duct (15) of the diesel engine through the check valve (9) and the engine oil filter element (13) of the original engine lubricating system machine of the diesel engine to provide pre-lubrication for a crankshaft, a cam lubrication and a turbocharger (14) of the diesel engine, when an engine oil pressure gauge (16) reaches the lubricating pressure of the diesel engine, the reversing valve (6) is switched, and the pneumatic oil pump (8) stops working;
meanwhile, the other path of gas passes through the switch valve (2) and the first electromagnetic valve (3) to start the diesel engine starting device (5), the diesel engine starts to run, an oil pump (12) of the diesel engine runs normally, oil is extracted from an oil pan (10) and flows to an oil filter element (13) to provide lubricating oil for a main oil gallery (15) of the diesel engine to lubricate a crankshaft and a cam of the diesel engine and a turbocharger (14),
b. when the engine oil pressure is suddenly reduced, the reversing valve (6) is switched at any time, and the pneumatic engine oil pump (8) is started to provide lubricating engine oil for the diesel engine;
c. when the diesel engine stops working, the oil pump (12) stops running, the oil pressure is reduced, the reversing valve (6) switches the air passage, the pneumatic oil pump (8) is opened to provide time-delay lubrication for the turbocharger (14), and the time delay is set by the control circuit of the second electromagnetic valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010743497.1A CN111946418B (en) | 2020-07-29 | 2020-07-29 | External safe intelligent lubricating system and method for diesel engine with long-term stagnation and intermittent use |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010743497.1A CN111946418B (en) | 2020-07-29 | 2020-07-29 | External safe intelligent lubricating system and method for diesel engine with long-term stagnation and intermittent use |
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| Publication Number | Publication Date |
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| CN111946418A CN111946418A (en) | 2020-11-17 |
| CN111946418B true CN111946418B (en) | 2021-11-12 |
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| CN202010743497.1A Active CN111946418B (en) | 2020-07-29 | 2020-07-29 | External safe intelligent lubricating system and method for diesel engine with long-term stagnation and intermittent use |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201843658U (en) * | 2010-10-02 | 2011-05-25 | 刁久新 | Pre-lubricating device for engine |
| DE102013202456A1 (en) * | 2013-02-14 | 2014-08-14 | Mtu Friedrichshafen Gmbh | Internal combustion engine arrangement and method for supplying an internal combustion engine with lubricant |
| JP2017096221A (en) * | 2015-11-27 | 2017-06-01 | マツダ株式会社 | Lubrication device for engine |
| CN206246173U (en) * | 2016-11-04 | 2017-06-13 | 刘峰 | A kind of diesel engine of vehicle lubricating system |
| CN107387197A (en) * | 2016-05-16 | 2017-11-24 | 宝沃汽车（中国）有限公司 | A kind of engine lubrication system, engine and vehicle |
| CN109057908A (en) * | 2018-08-16 | 2018-12-21 | 潍柴动力股份有限公司 | A kind of lubricating system and lubricating method |
| CN110195644A (en) * | 2019-06-13 | 2019-09-03 | 盐城工业职业技术学院 | A kind of turbocharger of motor and its system with Intelligent lubricating device |
-
2020
- 2020-07-29 CN CN202010743497.1A patent/CN111946418B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201843658U (en) * | 2010-10-02 | 2011-05-25 | 刁久新 | Pre-lubricating device for engine |
| DE102013202456A1 (en) * | 2013-02-14 | 2014-08-14 | Mtu Friedrichshafen Gmbh | Internal combustion engine arrangement and method for supplying an internal combustion engine with lubricant |
| JP2017096221A (en) * | 2015-11-27 | 2017-06-01 | マツダ株式会社 | Lubrication device for engine |
| CN107387197A (en) * | 2016-05-16 | 2017-11-24 | 宝沃汽车（中国）有限公司 | A kind of engine lubrication system, engine and vehicle |
| CN206246173U (en) * | 2016-11-04 | 2017-06-13 | 刘峰 | A kind of diesel engine of vehicle lubricating system |
| CN109057908A (en) * | 2018-08-16 | 2018-12-21 | 潍柴动力股份有限公司 | A kind of lubricating system and lubricating method |
| CN110195644A (en) * | 2019-06-13 | 2019-09-03 | 盐城工业职业技术学院 | A kind of turbocharger of motor and its system with Intelligent lubricating device |
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| CN111946418A (en) | 2020-11-17 |
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