Marine diesel engine oil pan

Abstract

The utility model discloses an oil pan of a marine diesel engine, which belongs to the technical field of diesel engines and comprises an oil pool, an oil pressing pump and an oil suction pump. Two axial supporting plates and a middle transverse supporting plate are arranged in the oil pool, open holes are formed in the axial supporting plates, the middle transverse supporting plate is arranged between the two axial supporting plates, an upper baffle and a lower baffle which are arranged in a staggered mode are fixed to the middle transverse supporting plate and the axial supporting plates, the upper baffle is located above an oil suction opening of the oil suction pipe, and the lower baffle is located above an oil suction opening of the oil suction pipe. The lower baffle is located below the oil pressing pump and the oil suction pump, and the oil suction pipe is located between the upper baffle and the lower baffle. The structure of a ship engine room is not changed, the structure of the oil pan is simplified, the manufacturing cost of parts is reduced, the requirement for engine oil consumption required by long-time sailing of a ship is met, the problems that power loss of a diesel engine is increased and engine oil deteriorates due to violent fluctuation of the engine oil are solved, and the structural strength and the structural stability are good.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the diesel engine technical field, concretely relates to a marine diesel engine oil sump. BACKGROUND

[0002] The oil sump is installed at the bottom of the engine and is an important component of the engine, mainly used for storing oil, collecting oil that splashes and drips after lubrication, preventing oxidation of the oil, preventing foreign matter or impurities from entering the engine, and so on.

[0003] To meet the oil consumption requirements of long-time navigation of the ship, the oil sump needs to have a large enough volume. When the ship is sailing at sea, it may be subjected to wave impact and produce large-angle tilting and swinging that changes alternately. The oil in the oil sump fluctuates violently, causing the motion parts of the diesel engine, such as the crankshaft balance block, piston, connecting rod, etc., to be immersed in the oil for a short time and stir the oil, resulting in increased power loss of the diesel engine, deterioration of the oil, and other problems. In order to solve the above problems, the existing technology usually requires the ship to change the structure of the engine room to increase the space of the engine room, so as to adapt to the installation space of a larger oil sump. However, this operation is very complex and is difficult to implement due to environmental constraints. In addition, a complex oil blocking and defoaming structure needs to be provided inside the oil sump, which can to some extent alleviate the problems of increased power loss and oil deterioration caused by long-time navigation of the ship and tilting and swinging of the ship.

[0004] How to simplify the structure of the oil sump, reduce the manufacturing cost of the parts and components, meet the oil consumption requirements of long-time navigation of the ship, and reduce the power loss and oil deterioration of the diesel engine caused by violent fluctuation of the oil without changing the structure of the engine room of the ship is a technical problem that cannot be overcome by the existing technology.

[0005] In addition, when a high-power marine diesel engine is installed in the engine room of the ship, the oil sump may occasionally directly support the weight of the diesel engine due to the limitation of the internal space of the engine room. Therefore, the oil sump is required to have good structural strength and stability.

[0006] The existing high-power marine diesel engine is usually designed as a cast iron or cast aluminum part, which is difficult to achieve elegance and lightness in terms of weight and volume. In addition, due to the limitation of the installation space of the engine room of the ship, the existing cast iron and cast aluminum oil sump cannot accommodate enough oil in the limited installation space, which cannot meet the requirements of long-time continuous navigation of the ship. In addition, the stamping oil sump made of thin steel plate is prone to deformation and has insufficient overall load-bearing capacity, which cannot support the weight of the diesel engine. SUMMARY

[0007] The utility model discloses a marine diesel engine oil sump, under the premise of not changing marine engine room structure, both simplify oil sump structure, reduce the cost of parts manufacturing, satisfy the oil consumption requirement required by marine long time navigation, reduce the power loss increase of diesel engine and oil metamorphic problem caused by oil violent fluctuation, and the structural strength and structural stability are good.

[0008] To achieve the above object, the utility model adopts the technical scheme of:

[0009] A marine diesel engine oil sump, including the oil gauge guide pipe mounting seat of upper end face installation, the oil pool of bottom installation of oil drain plug, and the oil pump and oil suction pump of installation in the oil pool one side through the oil connection pipe connection, the oil inlet of oil pump is connected with the oil suction pipe in the inside of oil pool, the inside of oil pool is provided with two axial support plates and intermediate transverse support plate of vertical and horizontal arrangement, the axial support plate parallel arrangement and the surface is provided with the hole, and the intermediate transverse support plate is arranged between two axial support plates, and the intermediate transverse support plate and axial support plate are fixed with the upper baffle and lower baffle of surface opening hole distribution and being arranged, the upper baffle and lower baffle staggered arrangement along the length direction of axial support plate, and the upper baffle is located above the oil suction pipe oil suction, and the lower baffle is located below the oil pump and oil suction pump, and the oil suction pipe is located between the upper baffle and lower baffle, the upper baffle includes upper baffle bottom plate and the upper baffle support of being located on upper baffle bottom plate and being connected with the main bearing cover assembly on the crankcase.

[0010] The utility model discloses the further improvement in the technical scheme is: the oil pool is surrounded by oil pool front end baffle, oil pool apron and oil pool rear end baffle.

[0011] The utility model discloses the further improvement in the technical scheme is: the axial support plate outside still is provided with two side transverse support plates extending to the oil pool width direction.

[0012] The utility model discloses the further improvement in the technical scheme is: the oil pool top one side is installed with two machine oil liquid level sensor, and the upper liquid level sensor and lower liquid level sensor of machine oil liquid level sensor are installed respectively on the upper liquid level sensor support and lower liquid level sensor support below lower baffle.

[0013] The utility model discloses the further improvement in the technical scheme is: the oil drain plug is located on the oil pool rear end baffle, and is provided with two.

[0014] The utility model discloses the further improvement in the technical scheme is: the axial support plate is connected through the oil sump flange between the crankcase.

[0015] The utility model discloses the further improvement in the technical scheme is: the upper baffle support is connected through bolt with main bearing cover assembly.

[0016] The further improvement in the utility model technical scheme lies in that the oil connecting pipe comprises an oil pipe I and a connecting pipe flange connected with the oil pump and the oil suction pump at two ends of the oil pipe I.

[0017] The further improvement in the utility model technical scheme lies in that the oil suction pipe comprises an oil pipe II connected with an oil inlet of the oil suction pump through an oil suction pipe flange, another end of the oil pipe II is provided with a filter cover, and the oil pipe II is further provided with an oil suction pipe support II and an oil suction pipe support I respectively fixed with the upper baffle and the crankcase main bearing cover.

[0018] The further improvement in the utility model technical scheme lies in that the material of the oil pool is aluminum alloy.

[0019] Thanks to the above technical scheme, the utility model has the following technical progress:

[0020] The oil pool is internally provided with two axial supporting plates and an intermediate transverse supporting plate which are crisscrossed, the intermediate transverse supporting plate is parallelly arranged between the two axial supporting plates, the overall structure is simple and high in strength and not easy to deform; in addition, the axial supporting plate and the intermediate transverse supporting plate further have the functions of stabilizing the oil level, eliminating the oil level shaking caused by the ship driving and eliminating the oil level fluctuation foam.

[0021] The upper baffle and the lower baffle are fixed on the intermediate transverse supporting plate and the axial supporting plate and are distributed in an upper and lower mode and are provided with holes on surfaces, the upper baffle and the lower baffle are crisscrossed along the length direction of the axial supporting plate, the upper baffle is located above the oil suction inlet of the oil suction pipe, and the lower baffle is located below the oil pump and the oil suction pump; when the ship is inclined forward, the lower baffle can block and delay the oil collection to the flywheel end of the engine due to the dense holes on the surface of the lower baffle, the solid part of the lower baffle can avoid the problems of the oil seal leakage of the flywheel end or the oil flooding of the cylinder caused by the sudden collection of the oil to the flywheel end; when the ship is inclined backward, the upper baffle can delay the oil collection to the free end of the engine due to the dense holes on the surface of the upper baffle, the solid part of the upper baffle can avoid the problems of the oil seal leakage of the free end or the oil flooding of the cylinder caused by the sudden collection of the oil to the free end.

[0022] The oil pool is surrounded by the oil pool front end baffle, the oil pool coaming and the oil pool rear end baffle, the shapes of the oil pool front end baffle and the oil pool rear end baffle are adapted to the shape of the engine room, the space inside the engine room is maximally utilized, the volume of the oil sump is increased, and the endurance time of the ship is improved.

[0023] The axial supporting plate is further provided with two side transverse supporting plates extending to the width direction of the oil pool, the overall structural strength of the oil sump is further increased, and the two side transverse supporting plates further have the functions of stabilizing the oil level, eliminating the oil level shaking caused by the ship driving and eliminating the oil level fluctuation foam.

[0024] This utility model has two oil level sensors installed on one side of the top of the oil pan. The upper and lower oil level sensors are respectively mounted on the upper and lower oil level sensor brackets below the lower baffle, indicating the highest and lowest oil level heights. During diesel engine operation, the oil level changes can be monitored in real time. When the oil level is at the lowest level, an alarm message is issued to prevent insufficient oil in the oil pan from causing engine cylinder burnout. When the oil level is filled to the highest level, the user is prompted to stop adding oil to prevent oil overflow.

[0025] The bottom of the rear end baffle of this utility model is equipped with two oil drain plugs, which speeds up the oil draining process.

[0026] The axial support plate of this invention is connected to the crankcase via an oil pan flange, which makes the invention more securely suspended on the crankcase.

[0027] One end of the oil pipe II of this utility model is connected to the oil inlet of the oil pump through the oil suction pipe flange, and the other end is equipped with a filter cover to filter impurity particles in the oil and improve the purity of the oil.

[0028] The oil tank of this utility model is made of aluminum alloy, which is lighter, easier to install, and has high structural strength. Attached Figure Description

[0029] Figure 1 , Figure 2 This is a schematic diagram of the appearance and structure of this utility model;

[0030] Figure 3 , Figure 4 This is a schematic diagram of the internal structure of the concealed oil tank of this utility model;

[0031] Figure 5 Is Figure 4 A schematic diagram of the internal structure of the concealed axial support plate, transverse support plate, and oil pan flange;

[0032] Figure 6 Is Figure 5 A schematic diagram of the internal structure of the hidden upper baffle;

[0033] Figure 7 This is a schematic diagram showing the oil level inside the oil pan when the engine is tilted forward at 30 degrees.

[0034] Figure 8 This is a schematic diagram showing the oil level inside the oil pan when the engine is tilted back 15 degrees.

[0035] Figure 9 This is a schematic diagram showing the oil level inside the oil pan when the engine is tilted 45 degrees to the left.

[0036] Figure 10 Fig. 7 is a schematic diagram of the oil level inside the oil pan when the engine is tilted 45 degrees to the right;

[0037] 1-1, front end baffle of oil pool; 1-2, oil pool baffle; 1-3, oil gauge guide pipe mounting seat; 1-4, oil level sensor; 1-5, oil drain plug; 1-6, rear end baffle of oil pool; 1-7, lower baffle; 1-8, axial support plate; 1-9, intermediate transverse support plate; 1-10, oil pan flange; 1-11, upper baffle; 1-11-1, upper baffle support; 1-11-2, upper baffle bottom plate; 1-12, two side transverse support plates; 1-13, upper oil level sensor support; 1-14, lower oil level sensor support; 2, oil pressure pump; 3, oil suction pump; 4, main bearing cover assembly; 5, oil connecting pipe; 5-1, oil pipe I; 5-2, connecting pipe flange; 6, oil suction pipe; 6-1, oil suction pipe flange; 6-2, oil suction pipe support I; 6-3, oil suction pipe support II; 6-4, filter cover; 6-5, oil pipe II. DETAILED DESCRIPTION

[0038] The utility model will be further explained in detail in connection with the embodiments as follows:

[0039] The utility model provides a marine diesel engine oil sump, including the oil gauge guide pipe mounting seat 1-3 installed with upper end surface, the oil pool 1 of the oil drain plug 1-5 is installed with bottom, and the oil pump 2 and the oil suction pump 3 are connected through the oil connecting pipe 5 in one side of oil pool 1, the oil inlet of oil pump 2 is connected with the oil suction pipe 6 in the inside of oil pool 1, the inside of oil pool 1 is provided with two axial support plates 1-8 and intermediate transverse support plate 1-9 arranged longitudinally and transversely, the axial support plate 1-8 is arranged in parallel and is provided with opening on the surface, and the intermediate transverse support plate 1-9 is arranged in parallel between the two axial support plates 1-8, and the overall structure is simple, high in strength and not easy to deform, in addition, the axial support plate 1-8 and intermediate transverse support plate 1-9 also have the effect of stabilizing the engine oil level, eliminating the engine oil level shaking caused by the ship driving and eliminating the engine oil level fluctuation foam, the upper baffle 1-11 and lower baffle 1-7 are fixed on the intermediate transverse support plate 1-9 and axial support plate 1-8 and are distributed up and down and are provided with holes on the surface, the upper baffle 1-11 and lower baffle 1-7 are staggered along the length direction of axial support plate 1-8, the upper baffle 1-11 is located above the oil suction port of oil suction pipe 6, the lower baffle 1-7 is located below oil pump 2 and oil suction pump 3, and the oil suction pipe 6 is located between the upper and lower baffles, the upper baffle 1-11 includes upper baffle bottom plate 1-11-1 and upper baffle support 1-11-2 connected with main bearing cap assembly 4 on the crankcase on the upper baffle bottom plate 1-11-1, when the ship inclines forward, the lower baffle 1-7 can block and delay the engine oil collection to the engine flywheel end due to the dense holes on the surface of the lower baffle 1-7, which can cause the flywheel end oil seal leakage or engine oil flooding, when the ship inclines backward, the upper baffle 1-11 can delay the engine oil collection to the engine free end due to the dense holes on the surface of the upper baffle 1-11, which can avoid the sudden collection of engine oil to the free end, causing the free end oil seal leakage or engine oil flooding.

[0040] In an embodiment of the utility model, the oil pool 1 is surrounded by the oil pool front end baffle 1-1, the oil pool coaming 1-2 and the oil pool rear end baffle 1-6, the shape of the oil pool front end baffle 1-1 and the oil pool rear end baffle 1-6 is adapted to the shape of the engine room, the space inside the cabin is used to the maximum extent, the volume of the oil sump is increased, and the endurance time of the ship is improved.

[0041] In an embodiment of the utility model, the outer side of the axial support plate 1-8 is further provided with two side transverse support plates 1-12 extending to the width direction of the oil pool 1, which further enhances the structural strength of the overall oil sump, and the two side transverse support plates 1-12 also have the effect of stabilizing the engine oil level, eliminating the engine oil level shaking caused by the ship driving and eliminating the engine oil level fluctuation foam.

[0042] In an embodiment of the utility model, two oil level sensors 1-4 are installed on one side of the top of oil pool 1, upper liquid level sensor 1-13 and lower liquid level sensor 1-14 of oil level sensor 1-4 are installed on upper liquid level sensor support 1-13 and lower liquid level sensor support 1-14 below lower baffle 1-7 respectively, indicate the highest and lowest oil level height respectively, can monitor the change of oil level in real time during the operation of diesel engine, send alarm information when the oil is at the lowest level, prevent the lack of oil in oil pan from causing engine cylinder to burn, prompt the user to stop adding oil when the oil is added to the highest level, prevent the overflow of oil.

[0043] In an embodiment of the utility model, two oil drain plugs 1-5 are arranged at the bottom of rear end baffle 1-6 of oil pool, which accelerates the speed of oil draining.

[0044] In an embodiment of the utility model, axial support plate 1-8 is connected with crankcase through oil pan flange 1-10, so that the utility model is hung on the crankcase more firmly.

[0045] In an embodiment of the utility model, one end of oil pipe II 6-5 is connected with the oil inlet of oil suction pump 3 through oil suction pipe flange 6-1, and the other end is provided with filter cover 6-4 for filtering impurity particles in oil, which improves the purity of oil.

[0046] In an embodiment of the utility model, the material of oil pool 1 is aluminum alloy, which is more portable, easy to install and has large structural strength.

[0047] Working principle: the utility model discloses oil pool 1 inside is provided with two axial support plate 1-8 and middle transverse support plate 1-9 of interlaced, middle transverse support plate 1-9 parallel setting between two axial support plate 1-8, and the overall structural strength is high, and it is difficult to deform, in addition, axial support plate 1-8 and middle transverse support plate 1-9 still have the action of stabilizing engine oil level, eliminating the engine oil level shaking caused by the ship driving, eliminating engine oil level fluctuation foam, middle transverse support plate 1-9 and axial support plate 1-8 are fixed with the upper baffle 1-11 and lower baffle 1-7 of the upper and lower distribution and the surface is provided with hole, the upper baffle 1-11 and lower baffle 1-7 are staggered along the length direction of axial support plate 1-8, and the upper baffle 1-11 is located above the oil suction pipe 6 suction port, and the lower baffle 1-7 is located below the oil pump 2 and oil suction pump 3, when the ship is inclined, the lower baffle 1-7 due to the surface is provided with the dense hole, and the solid part of lower baffle 1-7 can block and delay the engine oil collection to the engine flywheel end, avoid the sudden collection of engine oil to the flywheel end, cause flywheel end oil seal leakage or engine oil drowns jar etc. problem, when the ship is inclined, the upper baffle 1-11 due to the surface is provided with the dense hole, and the solid part of upper baffle 1-11 can delay the engine oil collection to the engine free end, avoid the sudden collection of engine oil to the free end, cause free end oil seal leakage or engine oil drowns jar etc. problem.

[0048] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed here, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A marine diesel engine oil sump comprising an oil sump (1) having an oil level gauge conduit mounting seat (1-3) mounted on the upper end surface and a drain plug (1-5) mounted on the bottom, and a pressure oil pump (2) and a suction oil pump (3) connected through an oil connecting pipe (5) mounted on one side of the oil sump (1), the oil inlet of the pressure oil pump (2) being connected with a suction oil pipe (6) located inside the oil sump (1); characterized in that: The oil pool (1) is internally provided with two axially arranged axial support plates (1-8) and an intermediate transverse support plate (1-9), the axial support plates (1-8) are arranged in parallel and have openings on the surfaces, the intermediate transverse support plate (1-9) is arranged between the two axial support plates (1-8), the intermediate transverse support plate (1-9) and the axial support plates (1-8) are fixed with upper baffles (1-11) and lower baffles (1-7) which are arranged in an upper and lower distribution and have holes on the surfaces, the upper baffles (1-11) and the lower baffles (1-7) are arranged in a staggered manner along the length direction of the axial support plates (1-8), the upper baffles (1-11) are located above the oil suction pipe (6) oil suction port, the lower baffles (1-7) are located below the oil pump (2) and the oil suction pump (3), and the oil suction pipe (6) is located between the upper and lower baffles, the upper baffles (1-11) comprise an upper baffle bottom plate (1-11-2) and an upper baffle support (1-11-1) which is connected with the main bearing cover assembly (4) on the crankcase and is located on the upper baffle bottom plate (1-11-2).

2. A marine diesel engine oil sump as claimed in claim 1, characterised in that: The oil pool (1) is surrounded by an oil pool front end baffle (1-1), an oil pool fence (1-2) and an oil pool rear end baffle (1-6).

3. A marine diesel engine oil sump as set forth in claim 1 wherein: The outer side of the axial support plate (1-8) is further provided with two side transverse support plates (1-12) which extend in the width direction of the oil pool (1).

4. A marine diesel engine oil sump as set forth in claim 1 wherein: Two oil level sensors (1-4) are mounted on one side of the top of the oil pool (1), the upper liquid level sensor and the lower liquid level sensor of the oil level sensor (1-4) are respectively mounted on the upper liquid level sensor support (1-13) and the lower liquid level sensor support (1-14) below the lower baffle (1-7).

5. A marine diesel engine oil sump as set forth in claim 2 wherein: The oil drain plug (1-5) is located on the oil pool rear end baffle (1-6) and is provided with two.

6. A marine diesel engine oil sump as set forth in claim 1 wherein: The axial support plate (1-8) is connected with the oil pan flange (1-10) between the crankcase.

7. A marine diesel engine oil sump as set forth in claim 1 wherein: The upper baffle support (1-11-1) is connected with the main bearing cover assembly (4) through bolts.

8. A marine diesel engine oil sump as set forth in claim 1 wherein: The oil connecting pipe (5) comprises an oil pipe I (5-1) and a connecting pipe flange (5-2) which is connected with the oil pump (2) and the oil suction pump (3) at both ends of the oil pipe I (5-1).

9. A marine diesel engine oil sump as set forth in claim 1 wherein: The oil suction pipe (6) comprises an oil pipe II (6-5) which is connected with the oil inlet of the oil suction pump (3) through an oil suction pipe flange (6-1), the other end of the oil pipe II (6-5) is provided with a filter cover (6-4), and the oil pipe II (6-5) is further provided with an oil suction pipe support II (6-3) and an oil suction pipe support I (6-2) which are respectively fixed with the upper baffle (1-11) and the crankcase main bearing cover (4).

10. A marine diesel engine oil sump as set forth in claim 1 wherein: The material of the oil pool (1) is aluminum alloy.

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