Marine complex environment resistant special precise roller chain for ships and warships

Abstract

The invention relates to the technical field of chains, in particular to a marine complex environment resistant special precise roller chain for ships, which comprises a chain main body and an accessory for protection, the chain main body is formed by connecting a plurality of rows of single chains through long pin shafts, and the accessory comprises protective rings which are arranged on two sides of the chain main body and matched with the transmission shape of the chain. The protective ring is fixed through the top plate and the bottom plate; the roller chain further comprises a dynamic lubricating structure, the dynamic lubricating structure is integrated on the top plate and comprises an oil feeding box capable of releasing lubricating oil in a self-adaptive mode through gravity and an oil brush making contact with the chain body during oil feeding, and the surface of the chain is evenly coated with the lubricating oil through the oil brush. The lubricating oil recycling structure is arranged on the bottom plate and comprises a concentration groove for inclined flow guide, a recycling seat for gas pressurization and a guide pipe assembly capable of switching the flow direction, and the cam mechanism is synchronously driven through transmission of the chain main body; and the purpose of long-acting lubrication of multiple rows of chains in a marine environment is conveniently achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of chains, and particularly to a special precision roller chain for ships resistant to complex marine environments. Background Art

[0002] As a core component for power transmission, roller chains are widely used in ship propulsion systems, offshore platform lifting equipment, and shipboard mechanical devices.

[0003] However, traditional ship chains have long faced corrosion failure problems in complex marine environments. High salt fog, high humidity, and microbial attachment in the marine environment cause the corrosion rate of the chains to increase by 5 - 8 times compared to land environments. Relying solely on zinc or nickel plating protective layers is difficult to protect the chains from corrosion, seriously affecting the fatigue life. Therefore, at present, lubrication maintenance is mostly carried out to ensure the smooth transmission and corrosion resistance of the chains.

[0004] Nowadays, ship roller chains usually adopt multi - row chains. Due to the adjacent link plate spacing of only 2 - 3 mm, the retention rate of traditional lubricating greases under seawater scouring is less than 40%. The effective lubrication period of the transmission chains for deep - sea operations will be sharply reduced from the designed requirement of 200 hours to 70 hours. And manual lubrication requires the removal of the protective cover, which takes a long time for single - time maintenance, and the utilization rate of the lubricating oil is low, easily causing waste. Summary of the Invention

[0005] The purpose of the present invention is to provide a special precision roller chain for ships resistant to complex marine environments, which can conveniently achieve the purpose of long - term lubrication of multi - row chains in marine environments, so as to solve the problems raised in the above - mentioned background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A special precision roller chain for ships resistant to complex marine environments, including a chain body and protective accessories. The chain body is composed of multiple rows of single chains connected by long pins, and the accessories include protective rings arranged on both sides of the chain body and matching the shape of the chain transmission, and the protective rings are fixed by a top plate and a bottom plate; the roller chain further includes: A dynamic lubrication structure, which is integrated into the top plate and includes an oil supply box that adaptively releases lubricating oil by gravity, and an oil brush that contacts the chain body when supplying oil, and the lubricating oil is evenly coated on the chain surface through the oil brush; A lubricating oil recovery structure, which is arranged on the bottom plate and includes a centralized trough for inclined diversion, a recovery seat pressurized by gas, and a conduit assembly with a switchable flow direction. The cam mechanism is synchronously driven by the transmission of the chain body to pressurize the recovery seat, and the residual lubricating oil is recycled back to the oil supply box; Through the synergistic effect of the chain body, the protective structure, the dynamic lubrication structure, and the lubricating oil recovery structure, long - term lubrication and anti - corrosion in marine environments are achieved.

[0007] Preferably, in the dynamic lubrication structure, the oil supply box controls the release of lubricating oil through the balance between its partition plate and the balance spring; When the partition plate moves downward, it triggers the oil brush to contact the surface of the chain, and the lubricating oil uniformly penetrates into the gaps between the chain links as the main body of the chain rotates.

[0008] Preferably, in the lubricating oil recovery structure, the recovery seat increases the internal pressure through the linkage between its spring piston and the cam, and drives the recovered lubricating oil to flow back to the oil supply box in a directional manner through the return pipe; And the conduit assembly switches the recovery and return paths through the double-headed plug.

[0009] Preferably, an oil inlet is provided on the oil supply box, and a fixed plug is vertically installed in the oil supply box; The partition plate is movably installed in the oil supply box. The partition plate divides the oil supply box into upper and lower parts. A through hole is provided in the middle of the partition plate. The elastic force of the balance spring enables the partition plate to be in the upper half of the oil supply box, so that the through hole of the partition plate is closed by the fixed plug.

[0010] Preferably, the oil brush is fixedly installed at the bottom of the partition plate and is arranged close to the through hole.

[0011] Preferably, the centralized groove is provided below the top plate, and the bottom surface of the centralized groove is inclined. A recovery pipe is installed at the bottom of the centralized groove, and the recovery pipe is connected to the recovery seat on the bottom plate.

[0012] Preferably, a return pipe is fixedly connected to the recovery seat, and the return pipe is connected to the oil supply box. By applying pressure, the lubricating oil in the recovery seat can be recovered into the oil supply box, and a filtering component is provided in the recovery seat.

[0013] Preferably, the recovery seat is a circular seat, on which a straight groove is provided. A one-way air inlet is provided on the side surface of the straight groove, and a one-way valve is provided at the connection between the straight groove and the recovery seat.

[0014] Preferably, an opening is provided at the end surface of the straight groove, and a spring piston is installed in the opening. A pressure receiving plate is fixedly connected to the spring piston.

[0015] Preferably, the conduit assembly is an L-shaped conduit connected between the recovery pipe and the return pipe, and a double-headed plug is movably installed in the conduit. The double-headed plug can move in the conduit to close one of the recovery pipe or the return pipe through the double-headed plug; The double-headed plug is connected to the lifting plate, and the lifting plate is connected to the control seat. The control seat drives the lifting plate to move.

[0016] Preferably, a driving structure is provided on the bottom plate for the spring piston. The driving structure includes a guiding seat installed on the bottom plate, and a limiting groove is provided on the guiding seat. A sliding seat is slidably installed in the limiting groove, and a return spring is connected to the sliding seat. A rotating shaft is rotatably installed in the sliding seat. A sprocket is provided in the middle of the rotating shaft, and a cam is provided at the end of the rotating shaft. The sprocket can be engaged with the main body of the chain.

[0017] Preferably, a suspension plate is fixedly connected to the sliding seat, and a pulling rope is connected to the suspension plate. The other end of the pulling rope is connected to the lifting plate. The direction of the pulling rope is adjusted by a steering guide. The sliding seat can be driven to move by the lifting plate. The cam is located on the side of the pressure receiving plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Through the adaptive oil supply mechanism and oil brush coating design of the dynamic lubrication structure, it ensures the uniform lubrication of the multi-row chain gap, significantly extends the effective lubrication period, and reduces the loss of lubricating grease caused by seawater scouring. At the same time, through the lubricating oil recovery mechanism combined with pneumatic drive and path switching control, it realizes the directional recovery and reuse of residual lubricating oil, reduces the manual oil replenishment frequency and resource waste.

[0019] 2. By the non-contact protective ring, top plate and bottom plate to block the direct erosion of seawater and salt spray, the corrosion rate of the chain is delayed; and on it, the kinetic energy of the chain's own transmission is used to drive the cam mechanism to realize the automatic operation of lubricating oil recovery and pressurization, without external energy input, reducing the system complexity; 3. The synergistic effect of the protective structure and lubrication system of the present invention enables the chain to maintain stable transmission under the instantaneous impact load of the ship, reducing abnormal wear caused by uneven lubrication or corrosion; the inclined diversion design of the centralized groove and the detachable filter component facilitate impurity cleaning and system maintenance, improving the long-term use reliability, and the closed-loop lubricating oil circulation system reduces the leakage risk and avoids direct discharge of lubricating oil to pollute the marine environment. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the protective ring structure of the main body of the chain of the present invention.

[0022] Figure 3 It is a schematic diagram of the main body structure of the chain of the present invention.

[0023] Figure 4 It is a schematic diagram of the accessory structure of the present invention.

[0024] Figure 5 It is a schematic diagram of the lubricating oil passage structure of the present invention.

[0025] Figure 6It is a schematic diagram of the oil supply box structure of the present invention.

[0026] Figure 7 This is the first schematic diagram of the recovery seat structure of the present invention.

[0027] Figure 8 This is a second schematic diagram of the recovery seat structure of the present invention.

[0028] Figure 9 Schematic diagram of the driving structure of the present invention.

[0029] Figure 10 Schematic diagram of the cam structure of the present invention.

[0030] In the figure: 1. Chain body; 2. Protective ring; 3. Top plate; 4. Bottom plate; 5. Oil box; 6. Oil inlet; 7. Fixed plug; 8. Partition; 9. Balance spring; 10. Oil brush; 11. Central groove; 12. Recovery pipe; 13. Recovery seat; 14. Return pipe; 15. One-way air inlet; 16. Opening; 17. Spring piston; 18. Pressure plate; 19. Conduit; 20. Double-headed plug; 21. Lifting plate; 22. Control seat; 23. Guide seat; 24. Sliding seat; 25. Reset spring; 26. Rotating shaft; 27. Sprocket; 28. Cam; 29. Hanging plate; 30. Pull rope; 31. Steering guide. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment. It should be noted that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] See also Figures 1 to 10 The present invention provides a technical solution: a special precision roller chain for ships resistant to complex marine environments, the chain comprising a chain body 1 and accessories, and the chain body 1 is a multi-row chain, which is combined and connected with a single-row chain through a long pin shaft and can carry a larger load.

[0033] like Figures 1 - 3As shown in the figure, the accessory includes a protective ring 2, which is arranged on both sides of the chain body 1, and the shape of the protective ring 2 is correspondingly set according to the shape of the chain body 1 in the transmission state. The inside of the protective ring 2 does not contact the chain body 1 and will not affect the transmission effect of the chain. The top of the protective ring 2 is provided with a top plate 3, and the bottom is provided with a bottom plate 4. The two side protective rings 2 are fixedly connected through the top plate 3 and the bottom plate 4, and the whole accessory can be fixed in the equipment through the top plate 3 and the bottom plate 4.

[0034] As Figure 4 , Figure 5 shown in the figure, a dynamic lubrication structure is provided on the top plate 3, including an oil supply box 5 fixedly installed on the top plate 3. An oil inlet 6 is provided on the oil supply box 5. The oil inlet 6 can be connected to a lubricating oil storage tank, or lubricating oil can be manually added into the oil supply box 5 through the oil inlet 6. A fixed plug 7 is vertically installed in the oil supply box 5, and a partition 8 is movably installed in the oil supply box 5. The partition 8 divides the oil supply box 5 into upper and lower parts, and a through hole is provided in the middle of the partition 8. A balance spring 9 is fixedly connected to the partition 8. The elastic force of the balance spring 9 acts on the partition 8, enabling the partition 8 to be in the upper half of the oil supply box 5. At this time, the through hole of the partition 8 is blocked by the fixed plug 7. After the lubricating oil is added to the oil supply box 5, the gravity of the lubricating oil can cause the partition 8 to move downward against the elastic force of the balance spring 9. The contact surface between the fixed plug 7 and the through hole of the partition 8 adopts a conical plugging structure. When the gravity of the lubricating oil causes the partition 8 to move downward, there is a gap between the fixed plug 7 and the through hole, and the lubricating oil can slowly seep out, automatically performing slow feeding of the lubricating oil to maintain the chain body 1.

[0035] As Figure 6 shown in the figure, further, an oil brush 10 is fixedly installed at the bottom of the partition 8. The oil brush 10 is arranged close to the through hole, and the lubricating oil can flow along the oil brush 10. The downward movement of the partition 8 enables the oil brush 10 to contact the chain body 1. The oil brush 10 is made of a capillary adsorption material, such as nylon-copper wire composite bristles. The handle of the oil brush 10 is arranged around the through hole, with a cavity provided therein, which is also communicated with the through hole and the bristles, and can guide the lubricating oil to ensure that the seeping lubricating oil is preferentially adsorbed by the oil brush 10. When the chain moves, the oil brush 10 contacts and rubs against the surface of the chain, and through capillary action and mechanical friction, the lubricating oil is evenly dispersed to the entire bristles and coated on the chain.

[0036] As Figure 7 , Figure 8As shown in the figure, in order to improve the utilization rate of lubricating oil, the present invention is provided with a recycling structure for lubricating oil on the bottom plate 4. First, a centralized groove 11 is provided at the bottom of the top plate 3. The bottom surface of the centralized groove 11 is inclined. After the lubricating oil coated by the oil brush 10 is lubricated, the residual amount can enter the centralized groove 11 and be concentrated along the inclined bottom surface. A recovery pipe 12 is installed at the bottom of the centralized groove 11, and the recovery pipe 12 is connected to the recovery seat 13 on the bottom plate 4. The residual lubricating oil can enter the recovery seat 13 from the recovery pipe 12. A return pipe 14 is fixedly connected to the recovery seat 13, and the return pipe 14 is connected to the oil supply box 5. By applying pressure, the lubricating oil in the recovery seat 13 can be recovered into the oil supply box 5 for reuse. And a filtering component is provided in the recovery seat 13, which can filter out impurities in the lubricating oil.

[0037] As Figure 8 shown in the figure, the present invention improves the recovery of lubricating oil by increasing the air pressure in the recovery seat 13. The recovery seat 13 is an overall circular seat. A straight groove is provided on one side of it. A one-way air inlet 15 is provided on the side surface of the straight groove. A one-way valve is provided at the connection between the straight groove and the recovery seat 13 to prevent lubricating oil from flowing into the straight groove. An opening 16 is provided at the end surface of the straight groove, and a spring piston 17 is installed in the opening 16. A pressure receiving plate 18 is fixedly connected to the spring piston 17. When the pressure receiving plate 18 is reciprocally pushed, through the setting of two one-way structures, external gas can be first extracted into the straight groove through the negative pressure generated by the spring piston 17, and then the gas is pushed into the recovery seat 13, continuously increasing the pressure in the recovery seat 13, so that the lubricating oil therein enters the oil supply box 5 to complete the recovery.

[0038] As Figure 8 、 Figure 9 shown in the figure, in order to avoid the situation that when the pressure in the recovery seat 13 increases, the lubricating oil enters the recovery pipe 12 instead of the return pipe 14, an L-shaped conduit 19 is connected between the recovery pipe 12 and the return pipe 14. A double-headed plug 20 is movably installed in the conduit 19. The double-headed plug 20 can move in the conduit 19, and it can only close one of the recovery pipe 12 or the return pipe 14 at the same time. The double-headed plug 20 is connected to a movable lifting plate 21, and the lifting plate 21 is connected to a control seat 22. When the lifting plate 21 drives the double-headed plug 20 close to the return pipe 14, the recovery pipe 12 is opened and the return pipe 14 is closed. At this time, the lubricating oil is fed from the oil supply box 5. When the lifting plate 21 drives the double-headed plug 20 away from the return pipe 14, the recovery pipe 12 is closed and the return pipe 14 is opened. The lubricating oil can complete the lifting and recovery work from the return pipe 14 and re-enter the oil supply box 5 for feeding. At this time, the lubricating oil has been consumed. After re-dripping, the remaining part can be temporarily stored in the centralized groove 11 and the recovery pipe 12, and can be cleaned by disassembling the centralized groove 11 and the recovery pipe 12.

[0039] AsFigure 9 As shown, the control base 22 can adopt an electric control push rod to drive the lifting plate 21 to move for controlling the double-headed plug 20. The control base 22 can also adopt a manually adjusted pin structure, which can fix the lifting plate 21 at two corresponding positions, corresponding to the two open states of the double-headed plug 20.

[0040] As Figure 10 shown, a driving structure is provided on the bottom plate 4 for the spring piston 17 to apply intermittent reciprocating pressure to the pressure receiving plate 18. This driving structure is carried out by means of the rotation of the chain itself. The driving structure includes a guide seat 23 installed on the bottom plate 4. A limiting groove is provided on the guide seat 23. A sliding seat 24 is slidably installed in the limiting groove, and a return spring 25 is connected to the sliding seat 24. The elastic force of the return spring 25 makes the sliding seat 24 located at the top of the limiting groove. A rotating shaft 26 is rotatably installed in the sliding seat 24. A sprocket 27 is provided in the middle of the rotating shaft 26, and a cam 28 is provided at the end of the rotating shaft 26. A hanging plate 29 is also fixedly connected to the sliding seat 24. A pulling rope 30 is connected to the hanging plate 29, and the other end of the pulling rope 30 is connected to the lifting plate 21. The pulling rope 30 can adjust the direction through a turning guide 31. When the lifting plate 21 rises and drives the double-headed plug 20 to move to open the return pipe 14 to the recovery state, the pulling force generated by the pulling rope 30 on the lifting plate 21 acts on the hanging plate 29, which can drive the sliding seat 24 to move downward. The sprocket 27 on the rotating shaft 26 enters the chain body 1. When the chain body 1 rotates, it drives the sprocket 27 and the rotating shaft 26 to rotate, and then makes the cam 28 rotate. At this time, the cam 28 moves downward to the side of the pressure receiving plate 18. When the cam 28 rotates, it can drive the spring piston 17 reciprocally to increase the pressure of the recovery seat 13, so that the lubricating oil enters the oil supply box 5 from the return pipe 14.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special precision roller chain for ships resistant to complex marine environments, comprising a chain body and protective accessories, characterized in that: The chain body is composed of multiple rows of single chains connected by long pin shafts, and the accessory includes protective rings arranged on both sides of the chain body and matching the shape of the chain transmission, and the protective rings are fixed by a top plate and a bottom plate; the roller chain further includes: A dynamic lubrication structure, which is integrated on the top plate and includes an oil supply box that adaptively releases lubricating oil by gravity, and an oil brush that contacts the chain body during oil supply. The lubricating oil is evenly coated on the chain surface through the oil brush; A lubricating oil recovery structure, which is arranged on the bottom plate and includes a centralized trough for inclined diversion, a recovery seat with gas pressurization, and a conduit assembly with a switchable flow direction. The cam mechanism is synchronously driven by the transmission of the chain body to pressurize the recovery seat and recycle the residual lubricating oil back to the oil supply box; Through the synergistic effect of the chain body, the protective structure, the dynamic lubrication structure, and the lubricating oil recovery structure, long-term lubrication and anti-corrosion in the marine environment are achieved.

2. The special precision roller chain for ships resistant to complex marine environments according to claim 1, wherein: In the dynamic lubrication structure, the oil supply box controls the release of lubricating oil through the balance of its partition plate and the balance spring; And when the partition plate moves downward, it triggers the oil brush to contact the chain surface, and the lubricating oil uniformly penetrates into the chain link gaps as the chain body rotates.

3. The special precision roller chain for ships resistant to complex marine environments according to claim 1, characterized in that: In the lubricating oil recovery structure, the recovery seat is internally pressurized through the linkage of its spring piston and the cam, and drives the recovered lubricating oil to flow back to the oil supply box through the return pipe in a directed manner; And the conduit assembly switches the recovery and return paths through a double-headed plug.

4. The special precision roller chain for ships resistant to complex marine environments according to claim 2, wherein: An oil inlet is provided on the oil supply box, and a fixed plug is vertically installed in the oil supply box; The partition plate is movably installed in the oil supply box. The partition plate divides the oil supply box into upper and lower parts, and a through hole is provided in the middle of the partition plate. The elastic force of the balance spring enables the partition plate to be in the upper half of the oil supply box, so that the through hole of the partition plate is closed by the fixed plug.

5. The special precision roller chain for ships resistant to complex marine environments according to claim 4, characterized in that: The oil brush is fixedly installed at the bottom of the partition plate and is arranged close to the through hole.

6. The special precision roller chain for ships resistant to complex marine environments according to claim 3, characterized in that: The centralized trough is arranged below the top plate, and the bottom surface of the centralized trough is inclined. A recovery pipe is installed at the bottom of the centralized trough, and the recovery pipe is connected to the recovery seat on the bottom plate.

7. The special precision roller chain for ships resistant to complex marine environments according to claim 6, characterized in that: A return pipe is fixedly connected to the recovery seat, and the return pipe is connected to the oil supply box. By applying pressure, the lubricating oil in the recovery seat can be recovered into the oil supply box, and a filtering component is arranged in the recovery seat.

8. The special precision roller chain for ships resistant to complex marine environments according to claim 7, characterized in that: The recovery seat is a circular seat, and a straight groove is provided on it. A one-way air inlet is provided on the side of the straight groove, and a one-way valve is provided at the connection between the straight groove and the recovery seat.

9. The special precision roller chain for ships resistant to complex marine environments according to claim 8, characterized in that: An opening is provided at the end face of the straight groove, and a spring piston is installed in the opening. A pressure receiving plate is fixedly connected to the spring piston.

10. The special precision roller chain for ships resistant to complex marine environments according to claim 9, characterized in that: The conduit assembly is an L-shaped conduit connected between the recovery pipe and the return pipe, and a double-headed plug is movably installed in the conduit. The double-headed plug can move in the conduit to close one of the recovery pipe or the return pipe through the double-headed plug; The double-headed plug is connected to a lifting plate, and the lifting plate is connected to a control seat. The control seat drives the lifting plate to move.

11. The special precision roller chain for ships resistant to complex marine environments according to claim 10, characterized in that: A driving structure is provided on the bottom plate for the spring piston. The driving structure includes a guiding seat mounted on the bottom plate, and a limiting groove is provided on the guiding seat. A sliding seat is slidably mounted in the limiting groove, and a return spring is connected to the sliding seat. A rotating shaft is rotatably mounted in the sliding seat. A sprocket is provided in the middle of the rotating shaft, and a cam is provided at the end of the rotating shaft. The sprocket can be engaged with the main body of the chain.

12. The special precision roller chain for ships resistant to complex marine environments according to claim 11, characterized in that: A suspension plate is fixedly connected to the sliding seat, and a pulling rope is connected to the suspension plate. The other end of the pulling rope is connected to the lifting plate. The direction of the pulling rope is adjusted by a steering guide. The sliding seat can be driven to move by the lifting plate. The cam is located on the side of the pressure receiving plate.

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