CN107355278B - Non-stop device for inverted throwing type lifeboat diesel engine - Google Patents
Non-stop device for inverted throwing type lifeboat diesel engine Download PDFInfo
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- CN107355278B CN107355278B CN201710421427.2A CN201710421427A CN107355278B CN 107355278 B CN107355278 B CN 107355278B CN 201710421427 A CN201710421427 A CN 201710421427A CN 107355278 B CN107355278 B CN 107355278B
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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
- F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
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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
- F01M1/12—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10
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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
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
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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
- F01M1/12—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10
- F01M2001/123—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10 using two or more 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
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M2011/0095—Supplementary oil tank
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
A non-stop device for the inversion of a diesel engine of a throwing-down lifeboat comprises a lubricating system and a breathing system, wherein the lubricating system comprises an oil pump, a lifeboat body and an internal crank case thereof, an oil pan, a lubricating oil tank and a breathing pipe; the breathing system is a diesel engine respirator, and the diesel engine respirator is a communication device for communicating a diesel engine crankcase with an air inlet pipe; the oil pump is a duplex pump with independent oil inlet and outlet, the upper layer is a lubricating pump, and the lower layer is an oil return pump; an oil inlet of the oil return pump extends to the bottom of the oil pan, and an oil outlet of the oil return pump extends to the lubricating oil tank; an oil inlet of the lubricating pump is connected to a lubricating oil tank, and an oil outlet of the lubricating pump is connected to a main oil duct of the machine body; the lubricating oil tank comprises a tank cover and a tank body; the oil tank cover is provided with a breathing one-way valve and an oil filling port; the breathing pipe is communicated with the breathing one-way valve and the crankcase; the invention separates the collecting function and the storing function of the oil pan of the lifeboat diesel engine, so that the diesel engine can work normally no matter the diesel engine is overturned vertically or transversely.
Description
Technical Field
The invention relates to a lifeboat diesel engine device, in particular to a non-stop device for inverted throwing type lifeboat diesel engines, which realizes that a lifeboat is thrown into water from a throwing and dropping frame of a mother ship without stopping in the working state of the diesel engine and belongs to the technical field of marine diesel engines.
Background
The lifeboat is thrown and released on the mother ship, so that the lifesaving efficiency can be greatly improved. This technique is increasingly valued and used by people. However, the main engine of the lifeboat is an inverted parking diesel engine, namely the diesel engine starts to ignite after the lifeboat enters water and is automatically righted, so that some precious life-saving time can be wasted, and the rapid performance of the throwing-down lifeboat is restricted.
At present, when a lifeboat is overturned and inverted, a non-stop device for diesel engine inversion not only has the problem that the diesel engine can only be overturned around an axis parallel to the axis of a crankshaft, namely the lifeboat can only be transversely overturned, but also has the problem of oil leakage when the diesel engine is overturned and inverted. Although the diesel engine complies with: international maritime organization international convention on life safety for life saving 2009 and international maritime organization maritime safety committee msc.81(70) at resolution, "revised recommendations on life saving equipment testing", an "engine inversion test 6.14.6, wherein the engine is fixed to a frame rotatable about an axis corresponding to the longitudinal axis of the lifeboat, and a tray is provided under the engine to collect the leaked oil for measurement. 6.14.7 the following steps were followed during the test: … … 6.14.7.8 rotating the running engine 180 deg. clockwise, keeping at 180 deg. position for 10s, then rotating 180 deg. clockwise to complete one circle (the integrated test step, one test of diesel engine needs to complete 6 circles clockwise and counterclockwise); 6.14.8 during the test, the engine should not overheat, fail, or leak more than 250ml of oil on any one inversion. However, it cannot meet the use requirements of the lifeboat diesel engine for throwing from the mother boat keel frame into water in a non-stop state and longitudinal overturning caused by the rolling of sea waves in the running process of the lifeboat.
It is well known that a condition for keeping a diesel engine capable of operating for a short time in a turned-over, inverted state is the need to provide good lubrication for the diesel engine. The existing lifeboat diesel engine is an inverted non-stop device, such as the patent number: 200810154941.5, the device is provided with a main respirator arranged on the cylinder head cover and a secondary respirator arranged on the advancing device cover, wherein the main respirator is used for the positive working of the diesel engine, and the secondary respirator is used for the negative working of the diesel engine; in addition, the main structure of the device also comprises a partition plate arranged between the crankcase and the oil pan cavity to seal and separate the crankcase and the oil pan cavity, and a one-way valve is arranged on the partition plate, when the diesel engine is in a positive position or the transverse inclination is less than or equal to 90 degrees, the one-way valve is in a conducting state, and the crankcase is communicated with the oil pan cavity so as to facilitate oil return of the diesel engine; when the diesel engine is transversely inclined by more than 90 degrees, the valve port of the one-way valve is automatically closed, and the crankcase is separated from the oil pan cavity, so that the engine oil in the oil pan cavity is controlled to flow into the crankcase, the oil suction port of the oil pump is always immersed in the engine oil in the oil pan cavity when the diesel engine is turned over and inverted, and the lubrication of the diesel engine is kept.
The throwing-down type lifeboat is fixed on a mother boat throwing-down frame in a mode that a boat bow faces downwards, the longitudinal direction of the lifeboat and the horizontal plane form an oblique angle of 35-45 degrees, a lifeboat diesel engine is fixed at the bottom of a lifeboat cabin in a mode that the end of a gear chamber faces the boat bow, the end of a flywheel faces the boat stern, when the lifeboat is thrown down, the boat bow directly throws water downwards, the diesel engine turns about 90 degrees along with the longitudinal direction, and the gear chamber faces downwards. Therefore, the existing diesel engine of the inverted non-stop lifeboat is arranged in the throwing-down lifeboat, the lifeboat is fixed on the throwing-down frame of the mother ship, the one-way valve on the oil pan partition plate is not stopped, namely the oil pan is communicated with the crankcase of the diesel engine, therefore, part of engine oil in the cavity of the oil pan shell of the diesel engine flows into the crankcase and the gear chamber through the valve port of the one-way valve, the oil level in the cavity of the oil pan shell of the diesel engine is reduced, and the residual engine oil in the cavity of the oil pan shell can not maintain the lubrication of the whole throwing-down. Increase the oil reserve of oil pan die cavity, can lead to the diesel engine oil level to rise under the fixed state, the vice respirator mouth of engine oil submergence diesel engine to make engine oil flow out the machine from vice respirator mouth, cause the extravagant and environmental pollution of engine oil, at present, the diesel engine oil storage volume of not shutting down is about 5 ~ 7 liters in the oil pan to general lifeboat inversion. In addition, when the diesel engine is thrown downwards, the engine oil which flows into the crankcase and the gear chamber cover from the oil sump cavity in the original diesel engine is in a fixed state, and a secondary respirator port of the diesel engine is immersed, so that the leakage of the engine oil of the diesel engine is uncontrollable; therefore, the structure can not meet the use requirement of the throwing-down type inverted non-stop lifeboat diesel engine.
In addition, because diesel engine oil pan exterior space is extremely narrow and small in the lifeboat, the diesel engine changes the machine oil, utilizes the dipstick pipe to take out the machine oil from oil pan shell type intracavity usually, and is not only inefficient, hardly takes out the machine oil in the oil pan die cavity moreover.
To sum up, present formula of jettisoninging lifeboat diesel engine inversion does not stop the device, will realize that the lifeboat is under diesel engine operating condition, does not stop to jettison from the throwing of mother's ship and falls into water, the problem that needs the solution: 1. the diesel engine cannot be longitudinally turned; 2. external engine oil leaks when the diesel engine is turned over; 3. the diesel engine is required to be provided with double respirators, namely the diesel engine is simultaneously provided with a main respirator and an auxiliary respirator.
Disclosure of Invention
The invention aims to overcome the defects that the existing inverted non-stop lifeboat diesel engine can only be transversely turned but not longitudinally turned, and engine oil leakage pollution is generated when the diesel engine is turned; and the diesel engine also needs to be provided with double respirators, namely the diesel engine is simultaneously provided with a main respirator, a secondary respirator and the like.
The invention relates to a throwing type inverted non-stop lifeboat diesel engine device which meets the use requirements of a lifeboat diesel engine on throwing and falling into water from a throwing and falling frame of a mother ship in a non-stop state, longitudinal and transverse overturning caused by the rolling of sea waves of the lifeboat in the running process and an inverted state.
In order to achieve the above purpose, the present invention is realized by the following technical scheme.
A non-stop device for the inverted diesel engine of a throwing-down lifeboat comprises a lubricating system and a breathing system, wherein the lubricating system comprises an oil pump and a machine body, a crankcase is arranged in the machine body, and an oil pan is arranged at the bottom of the machine body; the breathing system is a diesel engine respirator, and the diesel engine respirator is a communication device for communicating a diesel engine crankcase with an air inlet pipe; the method is characterized in that: the lubricating system also comprises a lubricating oil tank and a breathing pipe; the oil pump is a duplex pump with independent oil inlet and outlet, which are stacked up and down, the upper layer is a lubricating pump, and the lower layer is an oil return pump; an oil inlet of the oil return pump is connected to the bottom of the oil pan cavity through a pipeline, and an oil outlet of the oil return pump is connected into the lubricating oil tank through a pipeline; an oil inlet of the lubricating pump is connected into a lubricating oil tank by a pipeline, an oil outlet of the lubricating pump is connected into an inlet of a filter by a pipeline, and an outlet of the filter is communicated with a main oil duct of the machine body; the lubricating oil tank comprises an oil tank cover and an oil tank body; the oil tank cover is provided with a breathing one-way valve and an oil filling port; the inlet of the breathing one-way valve is arranged below the oil tank cover, and the outlet of the breathing one-way valve is arranged above the oil tank cover; one end of the breathing tube is connected with the outlet of the breathing one-way valve, and the other end of the breathing tube is connected into the crankcase of the fuselage; the oil filler is provided with an oil filler cover, and the oil filler cover is provided with an air pressure safety valve; the bottom of the oil tank body is provided with an oil drain valve, and the side surface of the oil tank body is provided with an oil level indicator.
The object of the invention is further achieved by the following technical solutions.
The oil pump is arranged in the oil sump, the upper end of a pump shaft of the oil pump extends out of the pump body and penetrates through a bearing hole on the machine body, and a worm wheel is further arranged at the upper top end of the pump shaft and meshed with a worm arranged on an upper camshaft of the diesel engine; the upper end of the pump body of the oil pump is provided with a flange which is fixed on the machine body.
The lubricating pump and the oil return pump are both rotor pumps.
According to the lubricating pump and the oil return pump, the flow of the lubricating pump is 23-24L/min, and the flow of the oil return pump is 1-1.5L/min larger than that of the lubricating pump.
In the oil return pump, the oil outlet is connected to the inside of the lubricating oil tank through a pipeline, and an oil return valve is arranged on the pipeline of the oil outlet.
In the lubricating pump, the oil inlet is connected into the lubricating oil tank through a pipeline, and an oil inlet valve is arranged on the pipeline of the oil inlet.
The oil level indicator is vertically arranged at the middle upper part of the left side surface of the oil tank body, and two oil level indicating sections are arranged above and below the oil level indicator; the upper end green mark oil level interval is an oil level interval of the right position of the diesel engine; the blue mark oil level section at the lower end is an oil level section of the diesel engine fixed on the throwing and dropping frame.
The worm wheel is 13 teeth, the worm is 13 heads, and the modulus of the end surface is 1.5.
The oil pan is rectangular, the left of the pan bottom is high, the right of the pan bottom is low, and an oil collecting groove is further formed in the bottom of the right end of the oil pan.
The oil return pump is provided with the long-strip funnel-shaped oil suction opening with the filter screen, and is arranged at the right lower side of the oil collecting tank, and the large end of the funnel faces the bottom of the oil collecting tank.
The port of the oil suction port of the lubricating pump is funnel-shaped, the large end of the funnel is provided with the magnetic filter screen and faces downwards all the time, and the small end of the funnel is connected to the inlet oil pipe end of the oil inlet valve on the side face of the lubricating oil tank through the flexible oil pipe.
Above-mentioned lubricating oil tank is equipped with the sealing washer between the fuel tank body and the fuel tank cap.
The lubricating oil tank is arranged beside a gear chamber of the diesel engine, the front surface and the rear surface of the lubricating oil tank are symmetrical to the longitudinal vertical plane of the axis of the crankshaft of the diesel engine, a support is arranged at the bottom of the lubricating oil tank and fixed at the bottom of the lifeboat, the lubricating oil tank is cuboid, the capacity of the lubricating oil tank is 8-9 liters, the oil storage capacity of the lubricating oil tank is 6-7 liters, and the lubricating oil tank is made of stainless steel.
The height of the bracket is not less than 200 mm.
The breathing one-way valve is arranged in the middle of the left side of the oil tank cover.
The shell of the breathing one-way valve is a cylindrical shell with an inner hole and a single-layer step shape, the inner diameter and the outer diameter are small at the top and big at the bottom, the upper part is an outlet of the breathing one-way valve, the lower part is an inlet of the breathing one-way valve, and threads are arranged inside and outside the upper end.
The communication device is a connecting pipe connected between the crankcase and the air inlet pipe, the inner diameter of the connecting pipe is 8-10 mm, and two ends of the connecting pipe are provided with connecting ports which are respectively a crankcase port and an air pipe end port; the crankcase port is funnel-shaped, three vertically staggered semi-closed partition plates are sequentially arranged in the funnel-shaped port along the axial direction, the funnel opening is vertical to the horizontal plane, and the end port of the air inlet pipe is a hinged port.
The invention has the advantages and beneficial effects that:
it is known that to ensure short-term operation of a diesel engine when inverted, it is necessary to ensure lubrication and crankcase gas pressure equalisation. The invention separates the collecting function and the storing function of the oil pan of the lifeboat diesel engine, the oil pan collects the oil, and a lubricating oil tank is separately arranged outside the lifeboat diesel engine to store the oil. When the diesel engine works, the lubricating pump is used for conveying the engine oil in the lubricating oil tank to a main oil duct lubricating machine of the diesel engine through the filter, and meanwhile, the oil returning pump is used for conveying the engine oil which is lubricated and collected in the oil bottom shell to the lubricating oil tank for storage; the engine oil of the diesel engine can be recycled. The used lubricating oil tank is sealed and has sufficient design capacity, and the flexible oil suction port is used, so that the diesel engine can be fully lubricated when being rightly placed, turned over and turned upside down.
The crankcase of the diesel engine is sealed with the outside of the engine body except for the breathing port of the respirator, and the flow of the oil return pump of the invention is slightly larger than that of the lubricating pump, so that no oil is stored in the oil sump when the diesel engine works, therefore, no matter the diesel engine is longitudinally, transversely overturned or inverted, residual engine oil in the engine body can not reach and enter the funnel-shaped damping breathing port of the respirator, and the engine oil is leaked; when the diesel engine is rightly placed, turned over and inverted, the air pressure balance of the crankcase can be met by only using the same respirator, and no oil leaks; the breather sends the oil gas in the crankcase into the air inlet pipe of the diesel engine to apply work to the diesel engine, thereby realizing energy-saving and environment-friendly discharge.
In addition, the lubricating oil tank of the engine oil is fixed outside the body of the diesel engine, so that the heat dissipation environment of the engine oil is improved, an engine oil cooler is omitted, and the oil level is more convenient to observe by arranging a liquid level meter of the lubricating oil tank; the oil drain valve is arranged at the lower part of the lubricating oil tank, and the lubricating oil tank is erected, so that the engine oil of the diesel engine is more convenient to replace; the gas collection space at the upper left part in the lubricating oil tank is communicated with the crankcase through a pipeline, so that when the lifeboat is fixed on a throwing frame or thrown, engine oil in the lubricating oil tank flows into the crankcase through the outlet end of the breathing one-way valve, the air pressure balance of the lubricating oil tank is realized, the oil gas is prevented from leaking, and the oil tank is more environment-friendly to discharge; the safety valve arranged on the oil filling port cover of the lubricating oil tank ensures the safety of the lubricating oil tank.
In addition, the worm arranged on the inner cam shaft of the machine body drives the worm wheel on the pump shaft of the duplex oil pump, so that the power transmission of the oil pump is realized, and the structure is more compact.
Advantages and features of the present invention will be illustrated and explained by the following non-restrictive description of preferred embodiments thereof, given by way of example only with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of a diesel engine and its oil tank connection
FIG. 2 schematic view of the lubrication system of the present invention
FIG. 3 is a longitudinal sectional view of a diesel engine according to the present invention
FIG. 4 is a cross sectional view of a diesel engine according to the present invention
FIG. 5 schematic view of a respirator of the present invention
FIG. 6 is a schematic view of the one-way valve 132 of the respirator of the present invention
In the figure: 101. a body, 102, a main oil gallery, 103, a positioning hole, 104, a camshaft, 104A, a worm, 105, a worm wheel, 106, a bearing, 107, a kidney-shaped flange, 108, a screw, 109, an oil pump housing, 110, a pump shaft, 111, a lubrication pump, 112, a scavenging pump, 114, a scavenging pump oil suction port, 118, an oil pan, 119, an oil distribution block, 122, a scavenging valve, 123, an oil inlet valve, 124, a flexible oil pipe, 125, an oil tank cover, 126, an oil suction port, 127, a lubricating oil tank, 127A, an oil tank body, 128, an oil discharge valve, 129, an oil level indicator, 130, an oil filling port, 131, an air pressure safety valve, 132, a breathing check valve, 1321, a split pin, 1322, a steel ball, 1323, a housing, 1324, a valve, 1325, a step, 1326, an external thread, 1327, an internal thread, 133, a breathing pipe, 134, a filter, 135, an overflow valve,
170. the respirator comprises a respirator 171, an air inlet pipe 172, a combined gasket I, 173, a hinge body I, 174, a hinge screw 175, a connecting pipe 176, a breathing port 178, a hinge body II, 179, a combined gasket II, 180, a cap-shaped nut 181, a connector 183, a funnel-shaped damping cover 184, an upper sealed partition plate I, 185, an advance cover 186, a lower sealed partition plate 186A, an oil return hole 187, an upper sealed partition plate II, 188 and a gear chamber.
Detailed Description
In order to make the object and technical solution of the present invention clearer, the present invention is further explained with reference to the accompanying drawings and examples:
it will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
The terms "left, right, up, down, front and back" used in the present invention mean that when the reader faces the drawings, the left side of the reader is left, the right side of the reader is right, the upper side of the reader is up, the lower side of the reader is down, the surface in the front paper of the reader is front, and the surface facing the reader is back, and not specifically limited to the present invention.
The term "connected" as used herein may mean either a direct connection between the components or an indirect connection between the components via other components.
As shown in fig. 1 and 2, the lubricating oil tank 127 is a rectangular parallelepiped, the lubricating oil tank 127 includes a tank body 127A and a tank cap 125, and a seal ring is further provided between the tank body and the tank cap. The capacity is about 8-9 liters, the oil storage is 6-7 liters, the stainless steel is fixed beside a gear chamber of the diesel engine, the front and back surfaces of a lubricating oil tank 127 are symmetrical to the vertical plane of the axis of the crankshaft of the diesel engine, a support 151 is arranged at the bottom of the lubricating oil tank 127 and fixed at the bottom of the lifeboat, and the height of the support 151 is 200-250 millimeters. The tank cap 125 is provided with a filler opening 130 and a respiratory check valve 132, respectively, the respiratory check valve 132 being disposed at the left middle portion of the tank cap 125. On the left side surface of the tank body 127A, a fuel level indicator 129, an oil return valve 122 and an oil feed valve 123 are mounted upright. An oil drain valve 128 is provided at the bottom of the right side surface of the oil tank body 127A, facilitating the replacement of engine oil. Inside the oil tank 127A, the right end of the oil inlet valve 123 is connected with a flexible oil pipe 124, namely a stainless steel corrugated pipe, the other end of the corrugated pipe is connected with a funnel-shaped oil suction port 126 with a magnetic adsorption function, the oil suction port 126 can be turned over and inverted along with the lubricating oil tank 127 under the action of self gravity, the suction port 126 is always downward, and the suction port 126 is kept at the lower part of the engine oil in the lubricating oil tank 127, so that the oil inlet of the oil suction port 126 of the lubricating pump 111 is ensured when the diesel engine is turned over and inverted, and the lubrication of the diesel engine is met.
The oil filler 130 is provided with an oil filler cover, the oil filler cover is provided with an air pressure safety valve 131, the set pressure value of the air pressure safety valve 131 is 1150-1200 kPa, when the air pressure in the lubricating oil tank 127 reaches the value, the air pressure safety valve 131 automatically opens for air exhaust, and when the pressure value is reduced to 1120-1100 kPa, the air pressure safety valve 131 automatically closes;
the oil level indicator 129 is provided with two oil level indicating sections up and down; the upper end oil level interval is a green mark and is a mark of the engine oil level of the diesel engine when the lifeboat is in the right position; the oil level interval at the lower end is a blue mark and is used for marking the oil level of the diesel engine oil when the lifeboat is fixed on the throwing-down rack. The lower-end oil level section mark is an upper-end oil level section, which is a mapping section inclined upward by 35 ° at the left end of the lubricating oil tank 127.
As shown in fig. 6, the structure of the breathing check valve 132 includes a single-layer step cylindrical housing 1323 with an inner hole and an outer circle, the inner diameter and the outer diameter are both small at the top and large at the bottom, a steel ball 1322 with a diameter smaller than the inner diameter of the cylinder by 2-3 mm is arranged in the lower inner hole of the housing 1323, a circular valve 1324 is arranged at the junction of the upper inner hole and the lower inner hole of the housing 1323 and can be blocked by the steel ball 1322, a hole 1321 penetrating through the cotter pin is radially arranged at the lower end of the housing 1323, the steel ball 1322 is always kept in the lower inner hole of the housing 1323 by the blocking of the cotter pin; the breathing check valve 132 is fixed to the left middle portion of the fuel tank cap 125 by a nut using the external thread 1326 of the upper end of the housing 1323 and the step 1325, the internal thread 1327 is connected to one end of the breathing tube 133, and the other end of the breathing tube 133 is connected to the crankcase. The breathing passage of the lubricating oil tank 127 is: the breathing check valve 132, the breathing tube 133, the oil separation block 119, and a crankcase in the body 101.
The function of the breathing check valve 132 is that when the lubricating oil tank 127 is inverted along with the lifeboat, the steel ball 1322 blocks the air valve 1324 under the action of gravity, the check valve 132 is closed, so that the engine oil in the lubricating oil tank 127 is prevented from flowing into a crankcase in the body 101, and when the lubricating oil tank 127 is rightly arranged, the steel ball 1322 falls back to the lower end of the lower inner hole of the shell 1323.
As shown in fig. 2, 3 and 4, an oil pan 118 is arranged at the lower part of a machine body 101, the bottom of the oil pan 118 is high at the left and low at the right in the axial direction of the diesel engine, an inclination angle α is 2-3 degrees, an oil collecting tank is arranged at the bottom of the right side, an oil pump is arranged at the right side in the oil pan 118, the oil pump is a duplex rotor pump with independent oil inlet and outlet, the oil pump is superposed up and down, the upper layer is a lubricating pump 111, the lower layer is an oil return pump 112, the flow rate of the lubricating pump 111 is 23-24 liters/minute at the rated rotation speed of the diesel engine of 2800 revolutions per minute, and the flow rate of the oil return pump 112 is 1-1.5.
The oil return pump oil suction port 114 is arranged on the right side below an oil collecting groove of the oil pan 118 and is in a long strip shape; the oil outlet line of the scavenge pump 112, the scavenge pump 112 oil outlet end-oil distribution block 119-scavenge valve 122-lube oil tank 127.
Oil inlet route of the lubrication pump 111: an oil suction port 126, a flexible oil pipe 124, an oil inlet valve 123, an oil distribution block 119 and an oil inlet end of the lubricating pump 111. Oil outlet route of the lubrication pump 111: before engine oil enters the engine filter 134, an overflow valve 135 is arranged in the oil dividing block 119 to control the pressure of the engine oil in the main oil duct 102 to be 0.25-0.3 Pa, and overflow oil of the overflow valve 135 flows back to an oil pan 127 of the diesel engine to control the pressure of a lubricating system of the diesel engine;
as shown in fig. 4, the lubricating pump 111 and the oil return pump 112 share a pump shaft 110 and an oil pump housing 109, the pump shaft 110 passes through a positioning hole 103 formed in the machine body 101, is positioned in the bearing 106, and is fixed on the machine body 101 by a screw 108 through a kidney-shaped flange 107 arranged at the upper end of the oil pump housing 109, a worm wheel 105 fixed at the upper end of the pump shaft 110 is meshed with a worm 104A arranged on the cam shaft 104, the worm wheel 105 is 13 teeth, and the worm 104A is 13 heads, i.e. the transmission ratio is 1:1, and the end face module is 1.5, therefore, the oil pump of the invention transmits power through the cam shaft 104, and has a more compact structure.
As shown in FIG. 5, the breather 170 is a device that communicates the gear chamber 188 with the air inlet pipe 171 by using a connecting pipe 175, wherein the inner diameter of the connecting pipe 175 is 8-10 mm. The upper end of the connecting pipe 175 is provided with a hinge body 173, and the hinge body 173 is fixed on the right end surface of the air inlet pipe 171 through a hinge screw 174 and a combined gasket 172. The lower end of the connection tube 175 is provided with a second hinge 178 connected to the joint 181 of the breathing port 176 and fixed to the advancer cover 185.
The breathing port 176 is composed of a joint 181 and a funnel-shaped damping cover 183, wherein the joint 181 is a cylindrical body with a shoulder at one end, the end face of the shoulder is provided with an axial blind hole, the bottom of the blind hole is provided with a radial hole communicated with the blind hole, the funnel-shaped damping cover 183 is arranged at the inner side of the advancer cover 185, three semi-closed clapboards which are staggered up and down are sequentially arranged in the funnel-shaped damping cover 183 from the cover bottom to the cover opening, namely an upper closed partition 184 and a lower closed partition 186, and the lower part of the lower semi-closed partition 186 is provided with an oil return hole 186A, and the lower part of the upper closed partition 187, the outer end face of one end of the joint 181 provided with a convex shoulder is communicated with the bottom of the funnel-shaped damping cover 183, the other end of the joint passes through the central hole of the bowl bottom of the advancer cover 185 from inside to outside, the outer end face of the advance cover 185 is connected with the second hinge body 178 and is fixed on the advance cover 185 through a second combination gasket 179 and a cap nut 180; since the gear chamber 188 in the advancer cover 185 is communicated with the crankcase of the diesel engine, the air pressure balance of the crankcase of the diesel engine is realized by using the breather 170.
In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.
Claims (9)
1. A non-stop device for the inverted diesel engine of a throwing-down lifeboat comprises a lubricating system and a breathing system, wherein the lubricating system comprises an oil pump and a machine body, a crankcase is arranged in the machine body, and an oil pan is arranged at the bottom of the machine body; the breathing system is a diesel engine respirator, and the diesel engine respirator is a communication device for communicating a diesel engine crankcase with an air inlet pipe; the method is characterized in that: the lubricating system also comprises a lubricating oil tank and a breathing pipe; the oil pump is a duplex pump with independent oil inlet and outlet, which are stacked up and down, the upper layer is a lubricating pump, and the lower layer is an oil return pump; the oil return pump and the lubricating pump are both rotor pumps; an oil inlet of the oil return pump is connected to the bottom of the oil pan cavity through a pipeline, and an oil outlet of the oil return pump is connected into the lubricating oil tank through a pipeline; an oil inlet of the lubricating pump is connected to an oil inlet valve through a pipeline to the inside of a lubricating oil tank, an oil outlet of the lubricating pump is connected to an inlet of a filter through a pipeline, and an outlet of the filter is communicated with a main oil duct of the machine body; the lubricating oil tank comprises an oil tank cover and an oil tank body; the oil tank cover is provided with a breathing one-way valve and an oil filling port; the inlet of the breathing one-way valve is arranged below the oil tank cover, and the outlet of the breathing one-way valve is arranged above the oil tank cover; one end of the breathing tube is connected with the outlet of the breathing one-way valve, and the other end of the breathing tube is connected into the crankcase of the fuselage; the oil filler is provided with an oil filler cover with an air pressure safety valve; the bottom of the oil tank body is provided with an oil drain valve, and the side surface of the oil tank body is provided with an oil level indicator;
the port of the oil suction port of the lubricating pump is funnel-shaped, the large end of the funnel is provided with a magnetic filter screen and is always downward, and the small end of the funnel is connected to the inlet oil pipe end of the oil inlet valve on the side surface of the lubricating oil tank by utilizing a flexible oil pipe;
the flow of the lubricating pump and the flow of the oil return pump are 23-24 liters/minute and the flow of the oil return pump is 1-1.5 liters/minute larger than the flow of the lubricating pump under the rated rotating speed of 2800 revolutions/minute of the diesel engine;
the capacity of the lubricating oil tank is 8-9 liters, and the oil storage capacity is 6-7 liters.
2. The non-stop device for the diesel engine inversion of the throwing type lifeboat according to the claim 1, wherein: the oil pump is arranged in the oil sump, the upper end of a pump shaft of the oil pump extends out of the pump body and penetrates through a bearing hole on the machine body, and a worm wheel is further arranged at the upper top end of the pump shaft and meshed with a worm arranged on an upper camshaft of the diesel engine; the upper end of the pump body of the oil pump is provided with a flange which is fixed on the machine body.
3. The non-stop device for the diesel engine inversion of the throwing type lifeboat according to the claim 2, wherein: the worm wheel is 13 teeth, the worm is 13 heads, and the modulus of the end surface is 1.5.
4. The non-stop device for the diesel engine inversion of the throwing type lifeboat according to the claim 1, wherein: the oil pan is a rectangular oil basin, the left of the basin bottom is high, the right of the basin bottom is low, and an oil collecting groove is further formed in the bottom of the right end of the oil basin.
5. The non-stop device for the diesel engine inversion of the throwing type lifeboat according to the claim 1, wherein: the oil return pump is provided with a long-strip funnel-shaped oil suction opening with a filter screen and is arranged at the right lower side of the oil collecting tank, and the large end of the funnel faces the bottom of the oil collecting tank.
6. The non-stop device for the diesel engine inversion of the throwing type lifeboat according to the claim 1, wherein: the lubricating oil tank is arranged beside the gear chamber of the diesel engine, the front surface and the rear surface of the lubricating oil tank are symmetrical about the longitudinal vertical plane of the axis of the crankshaft of the diesel engine, and the bottom of the lubricating oil tank is provided with a support which is fixed at the bottom of the lifeboat, is cuboid and is made of stainless steel.
7. The non-stop device for the diesel engine inversion of the throwing type lifeboat according to the claim 1, wherein: the breathing one-way valve is arranged in the middle of the left side of the oil tank cover.
8. The non-stop device for the diesel engine inversion of the throwing type lifeboat according to the claim 1, wherein: the shell of the breathing one-way valve is a cylindrical shell with an inner hole and a single-layer step shape, the inner diameter and the outer diameter are small at the top and big at the bottom, the upper part is an outlet of the breathing one-way valve, the lower part is an inlet of the breathing one-way valve, and threads are arranged inside and outside the upper end.
9. The non-stop device for the diesel engine inversion of the throwing type lifeboat according to the claim 1, wherein: the communication device is a connecting pipe connected between the crankcase and the air inlet pipe, the inner diameter of the connecting pipe is 8-10 mm, and two ends of the connecting pipe are provided with connecting ports which are respectively a crankcase port and an air pipe end port; the crankcase port is funnel-shaped, three vertically staggered semi-closed partition plates are sequentially arranged in the funnel-shaped port along the axial direction, the funnel opening is vertical to the horizontal plane, and the end port of the air inlet pipe is a hinged port.
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| CN201710421427.2A CN107355278B (en) | 2017-06-07 | 2017-06-07 | Non-stop device for inverted throwing type lifeboat diesel engine |
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| CN107355278B true CN107355278B (en) | 2020-05-29 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110284939B (en) | 2017-06-08 | 2021-03-02 | 江苏科技大学 | Multi-cylinder diesel engine inversion non-stop device for throwing boat |
| CN117072281A (en) * | 2022-03-24 | 2023-11-17 | 镇江四洋柴油机制造有限公司 | Lifeboat diesel engine respirator |
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| GB1065679A (en) * | 1963-12-09 | 1967-04-19 | Simca Automobiles Sa | Improvements in and relating to internal combustion engines |
| CN1820124A (en) * | 2004-06-22 | 2006-08-16 | 丰田自动车株式会社 | Control apparatus for dry sump type internal combustion engine |
| CN104358906A (en) * | 2014-11-18 | 2015-02-18 | 温州仁谦汽车油泵有限公司 | Steel ball type overturn valve |
| CN204663623U (en) * | 2015-05-08 | 2015-09-23 | 江苏大学 | A kind of single-cylinder vertical-type diesel engine diaphragm controls, multistage labyrinth cavate resuscitation apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002256839A (en) * | 2001-02-28 | 2002-09-11 | Sanshin Ind Co Ltd | Dry sump lubricating structure of small craft |
| JP2016023585A (en) * | 2014-07-18 | 2016-02-08 | ヤマハ発動機株式会社 | Engine unit |
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|---|---|---|---|---|
| GB1065679A (en) * | 1963-12-09 | 1967-04-19 | Simca Automobiles Sa | Improvements in and relating to internal combustion engines |
| CN1820124A (en) * | 2004-06-22 | 2006-08-16 | 丰田自动车株式会社 | Control apparatus for dry sump type internal combustion engine |
| CN104358906A (en) * | 2014-11-18 | 2015-02-18 | 温州仁谦汽车油泵有限公司 | Steel ball type overturn valve |
| CN204663623U (en) * | 2015-05-08 | 2015-09-23 | 江苏大学 | A kind of single-cylinder vertical-type diesel engine diaphragm controls, multistage labyrinth cavate resuscitation apparatus |
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Application publication date: 20171117 Assignee: Zhenjiang Siyang Diesel Engine Manufacturing Co.,Ltd. Assignor: JIANGSU University OF SCIENCE AND TECHNOLOGY Contract record no.: X2020320000100 Denomination of invention: An inverted non-stop device for diesel engine of drop type lifeboat Granted publication date: 20200529 License type: Exclusive License Record date: 20201028 |
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Effective date of registration: 20220421 Address after: 212021 No. 69 liumai Road, Zhenjiang high tech Industrial Development Zone, Zhenjiang City, Jiangsu Province Patentee after: Zhenjiang Siyang Diesel Engine Manufacturing Co.,Ltd. Address before: 212003, No. 2, Mengxi Road, Zhenjiang, Jiangsu Patentee before: JIANGSU University OF SCIENCE AND TECHNOLOGY |
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