Detachable cabin penetrating piece of lubricating oil circulation cabin

Abstract

The invention discloses a detachable cabin penetrating piece for a lubricating oil circulation cabin, and relates to the technical field of ships, the detachable cabin penetrating piece comprises a ship deck and a dynamic adjusting assembly, and the dynamic adjusting assembly is arranged at the side end of the ship deck. The main body structure of an original lubricating oil pump body is reserved, the telescopic joint is additionally arranged at the suction port end of the lubricating oil pump body, the telescopic joint can achieve linkage lifting along with fluctuation of the liquid level of lubricating oil in a lubricating oil cabin, the long end of the V-shaped pin pulls a bottom flange of the telescopic joint through a crank in the process, the telescopic stroke of the telescopic joint can be accurately controlled through axial limiting, and the service life of the telescopic joint is prolonged. The short end of the V-shaped pin abuts against the contact when reaching the tail end of the stroke, and the contact type travel switch triggers the alarm lamp to give an alarm through the control unit after the contact is triggered, so that the alarm is triggered when the telescopic joint reaches the maximum adjustment stroke and still does not meet the immersion requirement, and dual protection of mechanical adjustment and electronic monitoring is achieved. The operation reliability of the marine main engine lubricating oil pump can be remarkably improved, and the applicability is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of ships, in particular to a detachable penetration component for a lubricating oil circulation tank. Background Art

[0002] In the case of a low-speed ship engine with a shaft generator, the conventional ship design is to arrange the shaft generator (shaft generator) at the free end (front end) of the main engine, and the main engine lubricating oil pump is conventionally arranged in the lubricating oil circulation tank and the tail of the main engine. This arrangement itself is not a problem, but if the customer prefers to use a shaft-mounted shaft generator, this arrangement will have corresponding disadvantages. Since the shaft-mounted shaft generator is very large and must be placed on the intermediate shaft at the rear end (flywheel end) of the main engine, the shaft generator will occupy the originally narrow space at the rear end of the main engine, resulting in insufficient space for the main engine lubricating oil pump. In this case, if we do not seek innovation and change, we will not be able to meet customer needs.

[0003] Based on this situation, we changed the conventional layout plan and placed the main engine lubricating oil pump in the main engine lubricating oil circulation compartment and the front end of the main engine. This not only allows the limited space at the rear end of the main engine to be reserved for the shaft-mounted shaft engine, but also realizes the layout of the main engine lubricating oil pump, a necessary equipment, while also meeting the customer's preference for the shaft-mounted shaft engine.

[0004] However, if the main engine lubricating oil pump is simply arranged at the front end of the main engine without considering the floating state of the ship and the operation of the main engine and pump under extreme working conditions, other problems and risks will also arise. As we all know, ships are generally in a flat floating or stern trim state when sailing or floating. If the lubricating oil pump is arranged at the bow of the lubricating oil circulation tank and is accompanied by harsh working conditions, the lubricating oil pump may be obstructed from pumping or the suction port of the circulation pump may be exposed above the liquid surface, resulting in a serious situation of suction. Summary of the Invention

[0005] The object of the present invention is to provide a detachable penetration member for a lubricating oil circulation tank to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a detachable penetrating component for a lubricating oil circulation tank, comprising a ship deck and a dynamic adjustment component, wherein the side end of the ship deck is provided with a dynamic adjustment component, and the dynamic adjustment component comprises a connecting frame bolted to the bottom of the side end of the ship deck, a warning light is bolted to the top end of the connecting frame, and a contact-type travel switch is fixedly installed on the side end of the connecting frame, and a contact is connected to the free end of the contact travel switch, a V-shaped pin is rotatably installed on the side end of the connecting frame, and the short end flange of the V-shaped pin abuts against the contact, and the long end flange of the V-shaped pin is rotatably connected to a crank, the crank is connected to an expansion joint at one end away from the V-shaped pin, and the middle part of the expansion joint is composed of a bellows that can be expanded and contracted along the axial direction, and the side end of the bottom flange of the expansion joint is fixed with an ear shaft rotatably connected to the V-shaped pin.

[0007] Furthermore, the long end of the V-shaped pin pulls the bottom flange of the telescopic joint through the crank, and the short end of the V-shaped pin abuts against the contact when reaching the end of the stroke, and the contact travel switch triggers the alarm light through the control unit after the contact is triggered.

[0008] Furthermore, a redundant filter assembly is connected to the bottom of the telescopic joint, and the redundant filter assembly includes an outer sieve cylinder connected to the bottom of the telescopic joint. The top of the outer sieve cylinder is fixedly connected to a threaded interface, and the threaded interface is threadedly fastened to the threaded port at the bottom end of the telescopic joint.

[0009] Furthermore, the redundant filter assembly also includes an inner sieve cylinder embedded in the outer sieve cylinder, an oil absorption filter is provided in the structural gap between the inner sieve cylinder and the outer sieve cylinder, and the oil absorption filter is a composite filter material composed of stainless steel metal mesh and glass fiber.

[0010] Furthermore, the redundant filter assembly also includes a bracket fixedly connected to the inner wall of the bottom end of the inner sieve cylinder, a spring is mounted inside the recess of the bracket, and the end of the spring facing away from the bracket is elastically connected to the valve core, and the sealing surface of the valve core is abutted against the conical opening at the bottom of the inner sieve cylinder.

[0011] Furthermore, the redundant filter assembly also includes a trigger rod fixedly connected to the bottom end of the valve core, the trigger rod protrudes from the bottom end plane of the outer sieve cylinder, and after the trigger rod touches the bottom, it squeezes the valve core to open the bottom cone of the inner sieve cylinder.

[0012] Furthermore, a fixing seat is supported at the middle end of the ship deck, and a pump motor is fixed with bolts on the top end of the fixing seat, and a coupling is fixedly connected to the rotating end of the pump motor.

[0013] Furthermore, a lubricating oil pump body is installed at the middle end of the ship deck, and the side end of the lubricating oil pump body is connected to an outlet elbow, and the end of the outlet elbow is fixed to the lubricating oil supply pipe with bolts.

[0014] Furthermore, a discharge tank is provided on one side of the bottom of the ship deck, and a lubricating oil tank is provided on the other side of the bottom of the ship deck, and the bow position of the lubricating oil tank close to the lubricating oil pump body is 200MM deeper than the tail position.

[0015] Furthermore, a main engine is installed on one end of the ship deck near the stern, and an intermediate shaft is fixedly connected to the rotating end of the main engine. The middle part of the intermediate shaft is rotationally matched with the support bearing, and the tail part of the intermediate shaft is transmission-connected to the propeller shaft. A shaft-belt generator is installed on the intermediate shaft between the main engine and the support bearing, and the shaft-belt generator uses the intermediate shaft as a rotor to cooperate with the outer coil to generate electricity.

[0016] The present invention provides a detachable oil circulation tank penetration component, which has the following beneficial effects:

[0017] 1. This application retains the main structure of the original lubricating oil pump body, and by adding a telescopic joint at the suction end of the lubricating oil pump body, the telescopic joint can be linked to rise and fall with the fluctuation of the lubricating oil level in the lubricating oil tank. During this process, the long end of the V-shaped pin pulls the bottom flange of the telescopic joint through the crank, and the telescopic stroke of the telescopic joint can be accurately controlled by the axial limit. When the short end of the V-shaped pin reaches the end of the stroke, it abuts against the contact. After the contact is triggered, the contact travel switch triggers the alarm light through the control unit to alarm, so that when the telescopic joint reaches the maximum adjustment stroke and still does not meet the immersion requirement, the alarm is triggered, realizing the dual protection of mechanical adjustment and electronic monitoring, which can significantly improve the operating reliability of the marine main engine lubricating oil pump.

[0018] 2. The present application has a trigger rod extending from the bottom of the outer sieve drum, so that after the trigger rod touches the bottom, it squeezes the valve core to open the bottom cone of the inner sieve drum, thereby redirecting the lubricating oil originally sucked in from the side to be sucked in from the bottom. Even when the lubricating oil reaches the bottom or the ship's shaking state exceeds the maximum allowed by the regulations, it can still ensure a short-term supply of lubricating oil. Through the redundant structural design, the problem of preventing the lubricating oil pump body from having suction obstructions in extreme cases is further considered, thereby improving the applicability of the marine main engine lubricating oil pump.

[0019] 3. This application not only meets the customer's demand for arranging a shaft-mounted shaft-belt generator at the rear end of the main engine, but also takes into account the rational use of the engine room space. It also considers designing the bottom of the lubricating oil tank to be tilted toward the bow. According to the length and capacity of the lubricating oil tank, we designed a height difference of about 200 mm, that is, the lubricating oil tank at the bow is about 200 mm deeper than the stern. In this way, even if the ship is tilted or in a state of shaking within the maximum specification, it can ensure that the liquid level at the suction port of the lubricating oil pump body is always above the minimum required liquid level. Through such design and layout, many of the above problems are perfectly solved, and the layout and function are rationalized. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1This is a schematic diagram of the innovative structural arrangement of the present invention;

[0021] Figure 2 This is a schematic structural diagram of the lubricating oil pump of the present invention;

[0022] Figure 3 This is a schematic diagram of the overall structure of the dynamic adjustment component of the present invention;

[0023] Figure 4 This is a partial structural diagram of the dynamic adjustment component of the present invention;

[0024] Figure 5 This is a schematic diagram of the split structure of the redundant filter assembly of the present invention;

[0025] Figure 6 This is a schematic diagram of a half-section structure of a redundant filter assembly of the present invention;

[0026] Figure 7 This is a schematic diagram of the full cross-section structure of the redundant filter assembly of the present invention.

[0027] In the figure: 1. Ship deck; 2. Dynamic adjustment component; 201. Connecting frame; 202. Warning light; 203. Contact travel switch; 204. Contact; 205. V-shaped pin; 206. Crank; 207. Telescopic joint; 208. Ear shaft; 3. Redundant filter component; 301. Outer screen; 302. Threaded interface; 303. Inner screen; 304. Suction filter; 305. Bracket; 306. Spring; 307. Valve core; 308. Trigger rod; 4. Fixed seat; 5. Pump motor; 6. Coupling; 7. Lubricating oil pump body; 8. Outlet elbow; 9. Lubricating oil supply pipe; 10. Discharge compartment; 11. Lubricating oil tank; 12. Main engine; 13. Intermediate shaft; 14. Support bearing; 15. Propeller shaft; 16. Shaft generator. DETAILED DESCRIPTION

[0028] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] See also Figures 2 to 4The present invention provides a technical solution: a detachable penetrating component of a lubricating oil circulation tank, comprising a ship deck 1 and a dynamic adjustment component 2, wherein the dynamic adjustment component 2 is provided at the side end of the ship deck 1, and the dynamic adjustment component 2 comprises a connecting frame 201 fixed by bolts to the bottom of the side end of the ship deck 1, a warning light 202 is fixed by bolts on the top of the connecting frame 201, and a contact limit switch 203 is fixedly installed at the side end of the connecting frame 201, and a contact 204 is connected to the free end of the contact limit switch 203, a V-shaped pin 205 is rotatably installed at the side end of the connecting frame 201, and the short end flange of the V-shaped pin 205 abuts against the contact 204, and The flange at the long end of the V-shaped pin 205 is rotatably connected to a crank 206, and the end of the crank 206 facing away from the V-shaped pin 205 is connected to an expansion joint 207, and the middle part of the expansion joint 207 is composed of a bellows that can be expanded and contracted in the axial direction, and the side end of the bottom flange of the expansion joint 207 is fixed with an ear shaft 208 rotatably connected to the V-shaped pin 205. The long end of the V-shaped pin 205 pulls the bottom flange of the expansion joint 207 through the crank 206, and the short end of the V-shaped pin 205 abuts against the contact 204 when reaching the end of the stroke, and the contact travel switch 203 triggers the alarm light 202 to alarm through the control unit after the contact 204 is triggered;

[0030] The specific operation is as follows: the present application retains the main structure of the original lubricating oil pump body 7, and by adding a telescopic joint 207 to the suction end of the lubricating oil pump body 7, the telescopic joint 207 can be linked to rise and fall with the fluctuation of the lubricating oil level in the lubricating oil tank 11, so that the suction end of the lubricating oil pump body 7 is always immersed below the lubricating oil level, fundamentally avoiding cavitation. During this process, the long end of the V-shaped pin 205 pulls the bottom flange of the telescopic joint 207 through the crank 206, and the telescopic stroke of the telescopic joint 207 can be accurately controlled by the axial limit. Furthermore, by limiting unnecessary displacement, the buckling deformation of the expansion joint 207 is prevented, thereby improving stability. Moreover, when the short end of the V-shaped pin 205 reaches the end of its stroke, it abuts against the contact 204. After the contact 204 is triggered, the contact travel switch 203 triggers the alarm light 202 through the control unit to sound an alarm. When the expansion joint 207 reaches the maximum adjustment stroke but still does not meet the immersion requirement, an alarm is triggered. This achieves dual protection of mechanical adjustment and electronic monitoring, which can significantly improve the operational reliability of the lubricating oil pump of the marine main engine 12.

[0031] See also Figures 5 to 7, a redundant filter assembly 3 is connected to the bottom of the telescopic joint 207, and the redundant filter assembly 3 includes an outer sieve cylinder 301 connected to the bottom of the telescopic joint 207, and the top of the outer sieve cylinder 301 is fixedly connected to a threaded interface 302, and the threaded interface 302 is threadedly fastened to the threaded port at the bottom end of the telescopic joint 207, and the redundant filter assembly 3 also includes an inner sieve cylinder 303 embedded in the outer sieve cylinder 301, and an oil suction filter 304 is provided in the structural gap between the inner sieve cylinder 303 and the outer sieve cylinder 301, and the oil suction filter 304 is a composite filter material composed of stainless steel metal mesh and glass fiber, and the redundant filter assembly 3 also includes a bracket 305 fixedly connected to the inner wall of the bottom end of the inner sieve cylinder 303, and a spring 306 is arranged inside the recess of the bracket 305, and the spring 306 is back One end of the bracket 305 is elastically connected to the valve core 307, and the sealing surface of the valve core 307 abuts and cooperates with the tapered opening at the bottom of the inner sieve cylinder 303. The redundant filter assembly 3 also includes a trigger rod 308 fixedly connected to the bottom end of the valve core 307. The trigger rod 308 protrudes from the bottom end plane of the outer sieve cylinder 301, and the trigger rod 308 opens the tapered opening at the bottom end of the inner sieve cylinder 303 by squeezing the valve core 307 after touching the bottom. The middle end of the ship deck 1 supports a fixing seat 4, and the top end of the fixing seat 4 is bolted to a pump motor 5, and the rotating end of the pump motor 5 is fixedly connected to a coupling 6. The middle end of the ship deck 1 is installed with a lubricating oil pump body 7, and the side end of the lubricating oil pump body 7 is connected to an outlet elbow 8, and the end of the outlet elbow 8 is bolted to the lubricating oil supply pipe 9.

[0032] The specific operation is as follows: first, when the lubricating oil level in the lubricating oil tank 11 is above the warning line, the lubricating oil in the lubricating oil tank 11 passes through the sieve holes on the outer screen 301, and after the impurities are filtered out by the oil suction filter 304, it enters the suction port end of the lubricating oil pump body 7 extended by the telescopic joint 207 through the sieve holes on the inner screen 303; secondly, when the lubricating oil level in the lubricating oil tank 11 is lower than the warning line, the telescopic joint 207 is axially extended until the contact limit switch 203 is triggered, thereby triggering an alarm, reminding the abnormal situation in the lubricating oil tank 11; finally, when the lubricating oil level in the lubricating oil tank 11 does not meet the side suction When the outer sieve drum 301 is about to touch the bottom, the present application extends a trigger rod 308 from the bottom of the outer sieve drum 301, so that after touching the bottom, the trigger rod 308 squeezes the valve core 307 to open the bottom cone of the inner sieve drum 303, thereby redirecting the lubricating oil originally sucked in from the side to be sucked in from the bottom. Even when the lubricating oil reaches the bottom or the ship's shaking state exceeds the maximum allowed by the regulations, the short-term supply of lubricating oil can still be guaranteed. The redundant structural design further considers the problem of preventing the lubricating oil pump body 7 from having suction obstructions in extreme cases, thereby improving the applicability of the lubricating oil pump 12 of the marine main engine;

[0033] See also Figures 1 to 2A discharge compartment 10 is provided on one side of the bottom of the ship deck 1, and a lubricating oil tank 11 is provided on the other side of the bottom of the ship deck 1, and the bow position of the lubricating oil tank 11 near the lubricating oil pump body 7 is 200MM deeper than the tail position. A main engine 12 is installed on the end of the ship deck 1 near the stern, and the rotating end of the main engine 12 is fixedly connected to an intermediate shaft 13, the middle part of the intermediate shaft 13 is rotatably matched with a support bearing 14, and the tail of the intermediate shaft 13 is transmission-connected to a propeller shaft 15. A shaft-belt generator 16 is installed on the intermediate shaft 13 between the main engine 12 and the support bearing 14, and the shaft-belt generator 16 uses the intermediate shaft 13 as a rotor to cooperate with the outer coil to generate electricity;

[0034] The specific operation is as follows. The present application changes the conventional layout scheme and arranges the lubricating oil pump body 7 at the front end of the lubricating oil tank 11 and the main engine 12. In this way, the limited space at the rear end of the main engine 12 can be left for the shaft-mounted shaft-belt generator 16, and the customer's demand for arranging the shaft-mounted shaft-belt generator 16 at the rear end of the main engine 12 is met, while taking into account the rational use of the cabin space. In addition, it is also considered to design the bottom of the lubricating oil tank 11 to be tilted toward the bow. According to the length and capacity of the lubricating oil tank 11, we designed a height difference of about 200mm, that is, the lubricating oil tank 11 at the bow is about 200mm deeper than the stern. In this way, even if the ship is tilted or in a shaking state allowed by the maximum specification, it can ensure that the liquid level at the suction port of the lubricating oil pump body 7 is always above the minimum required liquid level. Through such design and layout, many of the above problems are perfectly solved, and the rationalization of layout and function is achieved.

[0035] In summary, when using the detachable penetration part of the oil circulation tank:

[0036] First, the present application changes the conventional layout scheme and arranges the lubricating oil pump body 7 at the front end of the lubricating oil tank 11 and the main engine 12. This not only allows the limited space at the rear end of the main engine 12 to be reserved for the shaft-mounted shaft-belt generator 16, but also meets the customer's demand for arranging the shaft-mounted shaft-belt generator 16 at the rear end of the main engine 12, while taking into account the rational use of the engine room space. In addition, the bottom of the lubricating oil tank 11 is designed to be tilted toward the bow. According to the length and capacity of the lubricating oil tank 11, a height difference of about 200 mm is designed, that is, the lubricating oil tank 11 is about 200 mm deeper at the bow than at the stern. In this way, even if the ship is tilted or in a state of maximum rocking allowed by the regulations, it can ensure that the liquid level at the suction port of the lubricating oil pump body 7 is always above the minimum required liquid level. With this design and layout, many of the above problems are perfectly solved, and the layout and function are rationalized.

[0037] Secondly, the present application retains the main structure of the original lubricating oil pump body 7, and by adding a telescopic joint 207 to the suction end of the lubricating oil pump body 7, the telescopic joint 207 can be linked to rise and fall with the fluctuation of the lubricating oil level in the lubricating oil tank 11, so that the suction end of the lubricating oil pump body 7 is always immersed below the lubricating oil level, thereby fundamentally avoiding cavitation. During this process, the long end of the V-shaped pin 205 pulls the bottom flange of the telescopic joint 207 through the crank 206, and the telescopic stroke of the telescopic joint 207 can be accurately controlled by the axial limit, thereby preventing the buckling deformation of the telescopic joint 207 by limiting unnecessary displacement, thereby improving stability. When the short end of the V-shaped pin 205 reaches the end of the stroke, it abuts against the contact 204. After the contact 204 is triggered, the contact travel switch 203 triggers the alarm light 202 through the control unit to alarm, so that when the telescopic joint 207 reaches the maximum adjustment stroke and still does not meet the immersion requirement, the alarm is triggered, realizing dual protection of mechanical adjustment and electronic monitoring, which can significantly improve the operating reliability of the lubricating oil pump of the marine main engine 12;

[0038] Finally, when the oil level in the oil tank 11 is above the warning line, the oil in the oil tank 11 passes through the sieve holes on the outer screen 301 and, after being filtered out of impurities by the oil suction filter 304, enters the suction port end of the oil pump body 7 extended by the telescopic joint 207 through the sieve holes on the inner screen 303. Secondly, when the oil level in the oil tank 11 is lower than the warning line, the telescopic joint 207 extends axially until the contact limit switch 203 is triggered, thereby triggering an alarm to remind the abnormal situation in the oil tank 11. Finally, when the oil level in the oil tank 11 does not meet the requirements of side suction, the oil tank 11 is automatically turned off. When the outer sieve drum 301 is about to touch the bottom, the present application has a trigger rod 308 extending from the bottom of the outer sieve drum 301, so that the trigger rod 308 opens the bottom cone of the inner sieve drum 303 by squeezing the valve core 307 after touching the bottom, thereby making the lubricating oil originally sucked in from the side be redirected to be sucked in from the bottom, even when the lubricating oil reaches the bottom or the ship exceeds the maximum shaking state allowed by the specification, it can still ensure the short-term supply of lubricating oil. Through the redundant structural design, the problem of preventing the lubricating oil pump body 7 from having suction obstacles in extreme cases is further considered, thereby improving the applicability of the lubricating oil pump of the marine main engine 12.

[0039] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0040] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method of the present invention and its core ideas. The above are only preferred implementation methods of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of the present invention.

Claims

1. A detachable penetration member for a lubricating oil circulation tank, characterized in that: The invention comprises a ship deck (1) and a dynamic adjustment component (2), wherein the side end of the ship deck (1) is provided with the dynamic adjustment component (2), the dynamic adjustment component (2) comprises a connecting frame (201) fixed by bolts to the bottom of the side end of the ship deck (1), a warning light (202) is fixed by bolts on the top end of the connecting frame (201), and a contact travel switch (203) is fixedly installed on the side end of the connecting frame (201), and the free end of the contact travel switch (203) is connected to a contact (204), and the connecting frame (2 01) A V-shaped pin (205) is rotatably mounted on the side end, and the short end flange of the V-shaped pin (205) abuts against the contact (204), and the long end flange of the V-shaped pin (205) is rotatably connected to a crank (206), and the end of the crank (206) facing away from the V-shaped pin (205) is connected to a telescopic joint (207), and the middle part of the telescopic joint (207) is composed of a bellows that can be extended and retracted in the axial direction, and an ear shaft (208) rotatably connected to the V-shaped pin (205) is fixed to the side end of the bottom flange of the telescopic joint (207).

2. The detachable oil circulation tank penetration member according to claim 1, characterized in that: The long end of the V-shaped pin (205) pulls the bottom flange of the telescopic joint (207) through the crank (206), and the short end of the V-shaped pin (205) abuts against the contact (204) when reaching the end of the stroke, and the contact travel switch (203) triggers the alarm light (202) to sound an alarm through the control unit after the contact (204) is triggered.

3. The detachable oil circulation tank penetration member according to claim 2, characterized in that: The bottom of the telescopic joint (207) is connected to a redundant filter assembly (3), and the redundant filter assembly (3) includes an outer sieve cylinder (301) connected to the bottom of the telescopic joint (207). The top of the outer sieve cylinder (301) is fixedly connected to a threaded interface (302), and the threaded interface (302) is threadedly fastened to the threaded port at the bottom end of the telescopic joint (207).

4. The detachable oil circulation tank penetration member according to claim 3, characterized in that: The redundant filter assembly (3) further comprises an inner sieve cylinder (303) embedded in the outer sieve cylinder (301), an oil suction filter (304) being provided in a structural gap between the inner sieve cylinder (303) and the outer sieve cylinder (301), and the oil suction filter (304) being a composite filter material composed of a stainless steel metal mesh and glass fiber.

5. The detachable penetrating member of the lubricating oil circulation tank according to claim 4, characterized in that: The redundant filter assembly (3) further comprises a bracket (305) fixedly connected to the inner wall of the bottom end of the inner sieve cylinder (303), a spring (306) being mounted inside the recess of the bracket (305), and an end of the spring (306) facing away from the bracket (305) being elastically connected to the valve core (307), and a sealing surface of the valve core (307) is in abutment with the conical opening at the bottom of the inner sieve cylinder (303).

6. The detachable penetrating member of the lubricating oil circulation tank according to claim 5, characterized in that: The redundant filter assembly (3) further comprises a trigger rod (308) fixedly connected to the bottom end of the valve core (307), wherein the trigger rod (308) protrudes from the bottom end plane of the outer sieve cylinder (301), and the trigger rod (308) opens the bottom end cone of the inner sieve cylinder (303) by squeezing the valve core (307) after touching the bottom.

7. The detachable oil circulation tank penetration member according to claim 6, characterized in that: The middle end of the ship deck (1) supports a fixing seat (4), the top end of the fixing seat (4) is bolted with a pump motor (5), and the rotating end of the pump motor (5) is fixedly connected with a coupling (6).

8. The detachable penetration member of the lubricating oil circulation tank according to claim 7, characterized in that: A lubricating oil pump body (7) is installed at the middle end of the ship deck (1), and the side end of the lubricating oil pump body (7) is connected to an outlet elbow (8), and the end of the outlet elbow (8) is fixed to the lubricating oil supply pipe (9) by bolts.

9. The detachable oil circulation tank penetration member according to claim 8, characterized in that: A discharge compartment (10) is provided on one side of the bottom of the ship deck (1), and a lubricating oil tank (11) is provided on the other side of the bottom of the ship deck (1), and the lubricating oil tank (11) is 200 mm deeper at the bow position near the lubricating oil pump body (7) than at the stern position.

10. The detachable penetration member of the lubricating oil circulation tank according to claim 9, characterized in that: A main engine (12) is installed at one end of the ship deck (1) near the stern, and an intermediate shaft (13) is fixedly connected to the rotating end of the main engine (12). The middle part of the intermediate shaft (13) is rotationally matched with a support bearing (14), and the tail part of the intermediate shaft (13) is transmission-connected to a propeller shaft (15). A shaft-belt generator (16) is installed on the intermediate shaft (13) between the main engine (12) and the support bearing (14), and the shaft-belt generator (16) uses the intermediate shaft (13) as a rotor to cooperate with an outer coil to generate electricity.

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