Special precise marine roller chain for ships

Abstract

The present application relates to the technical field of chain, in particular to a special precise marine chain for ships, which comprises a chain body and accessories for protection, the chain body is connected with multiple rows of single chains through long pin shafts, the accessories include protective rings arranged on both sides of the chain body and matched with the transmission shape of the chain, and the protective rings are fixed through top plates and bottom plates; the chain further comprises a dynamic lubrication structure, the dynamic lubrication structure is integrated in the top plate and includes an oil supply box for self-adaptingly releasing lubricating oil through gravity and an oil brush for contacting the chain body during oil supply, the lubricating oil is uniformly coated on the surface of the chain through the oil brush; and the chain further comprises a lubricating oil recovery structure, the lubricating oil recovery structure is arranged on the bottom plate and includes a concentrated groove for inclined flow guide, a recovery seat for gas pressurization and a pipe assembly for switchable flow direction, and the chain body drives a cam mechanism synchronously; the purpose of long-term lubrication of multiple rows of chains in marine environment is conveniently achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of chain technology, in particular to a special precision roller chain resistant to marine complex environment for ships. BACKGROUND

[0002] As a core component of power transmission, the roller chain is widely used in ship propulsion systems, offshore platform hoisting equipment and shipborne mechanical devices.

[0003] However, the traditional chain for ships is subject to corrosion failure in the marine complex environment. The high salt mist, high humidity and microbial attachment in the marine environment cause the corrosion rate of the chain to increase by 5-8 times compared to the land environment. It is difficult to protect the chain from corrosion by relying on a zinc or nickel plating protective layer, which seriously affects the fatigue life. Therefore, at present, lubrication maintenance is often used to ensure the smooth transmission and corrosion resistance of the chain.

[0004] However, the traditional chain for ships is subject to corrosion failure in the marine complex environment. The high salt mist, high humidity and microbial attachment in the marine environment cause the corrosion rate of the chain to increase by 5-8 times compared to the land environment. It is difficult to protect the chain from corrosion by relying on a zinc or nickel plating protective layer, which seriously affects the fatigue life. Therefore, at present, lubrication maintenance is often used to ensure the smooth transmission and corrosion resistance of the chain. SUMMARY

[0005] The present application relates to the field of chain technology, in particular to a special precision roller chain resistant to marine complex environment for ships.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a special precision roller chain resistant to marine complex environment for ships, comprising a chain body and accessories for protection, the chain body is connected by long pin shaft to form multiple rows of single chains, and the accessories include protective rings arranged on both sides of the chain body and matched with the transmission shape of the chain, and the protective rings are fixed by a top plate and a bottom plate; the roller chain further comprises:

[0007] A dynamic lubrication structure is integrated in the top plate, including an oil supply box for self-adaptive release of lubricating oil by gravity, and an oil brush for contact with the chain body during oil supply, the lubricating oil is uniformly coated on the surface of the chain by the oil brush;

[0008] A lubricating oil recovery structure is arranged on the bottom plate, including a concentrated groove for inclined flow guide, a recovery seat for gas pressurization, and a conduit assembly for switchable flow direction, a cam mechanism is synchronously driven by the transmission of the chain body to pressurize the recovery seat, and the residual lubricating oil is recycled to the oil supply box for recycling;

[0009] Through the synergy of the chain body, the protection structure, the dynamic lubrication structure and the lubricating oil recovery structure, long-term lubrication and corrosion prevention in marine environment are realized.

[0010] Preferably, in the dynamic lubrication structure, the oil supply box controls the release of lubricating oil through the balance of the partition plate and the balance spring therein;

[0011] And when the partition plate moves down, the oil brush contacts the surface of the chain, and the lubricating oil penetrates evenly into the chain gap as the chain body rotates.

[0012] Preferably, in the lubricating oil recovery structure, the recovery seat is internally pressurized through the linkage of the spring piston and the cam therein, and drives the recovered lubricating oil to flow back to the oil supply box through the return pipe;

[0013] And the conduit assembly switches the recovery and return paths through the double-head plug.

[0014] Preferably, the oil supply box is provided with an oil inlet, and a fixed plug is vertically installed in the oil supply box;

[0015] The partition plate is movably installed in the oil supply box, and the partition plate divides the oil supply box into upper and lower parts, and the middle part of the partition plate is provided with a through hole, and the elastic force of the balance spring can make the partition plate in the upper half of the oil supply box, so that the through hole of the partition plate is closed by the fixed plug.

[0016] Preferably, the oil brush is fixedly installed at the bottom of the partition plate, and the oil brush is arranged close to the through hole.

[0017] Preferably, the concentration groove is arranged below the top plate, the bottom surface of the concentration groove is inclined, the bottom of the concentration groove is provided with a recovery pipe, and the recovery pipe is connected to the recovery seat of the bottom plate.

[0018] Preferably, the recovery seat is fixedly connected with a return pipe, the return pipe is connected with the oil supply box, and by applying pressure, the lubricating oil in the recovery seat can be recovered into the oil supply box, and a filter assembly is arranged in the recovery seat.

[0019] Preferably, the recovery seat is a circular seat, a straight groove is arranged on the recovery seat, a one-way air inlet is arranged on the side surface of the straight groove, and a one-way valve is arranged at the connection between the straight groove and the recovery seat.

[0020] Preferably, the end surface of the straight groove is provided with an opening, a spring piston is installed in the opening, and a pressure receiving plate is fixedly connected to the spring piston.

[0021] Preferably, the conduit assembly is an L-shaped conduit connected between the recovery pipe and the return pipe, a double-head plug is movably installed in the conduit, the double-head plug can move in the conduit, and one of the recovery pipe or the return pipe is closed by the double-head plug;

[0022] The double-head plug is connected to the lifting plate, and the lifting plate is connected to the control seat, and the lifting plate is moved by the control seat.

[0023] Preferably, a driving structure is arranged on the bottom plate for the spring piston, the driving structure comprises a guide seat mounted on the bottom plate, a limiting groove is arranged on the guide seat, a sliding seat is slidably arranged in the limiting groove, a return spring is connected to the sliding seat, a rotating shaft is rotatably arranged in the sliding seat, a sprocket is arranged on the middle part of the rotating shaft, and a cam is arranged on the end part of the rotating shaft.

[0024] Preferably, a hanging plate is fixedly connected to the sliding seat, a pull rope is connected to the hanging plate, the other end of the pull rope is connected to the lifting plate, the pull rope is adjusted in direction through a turning guide, the lifting plate can drive the sliding seat to move, and the cam is located on the side of the pressure plate.

[0025] Compared with the prior art, the present application has the following advantages:

[0026] 1. Through the self-adaptive oiling mechanism and the oil brush coating design of the dynamic lubrication structure, the uniform lubrication of the multiple-row chain gap is ensured, the effective lubrication period is significantly prolonged, and the loss of lubricating grease caused by seawater erosion is reduced; at the same time, through the lubricating oil recovery mechanism combined with the air pressure driving and path switching control, the directional recovery and reuse of residual lubricating oil are realized, the manual oil supplement frequency is reduced, and resource waste is reduced.

[0027] 2. The non-contact protective ring, the top plate and the bottom plate block the direct erosion of seawater and salt mist, delay the corrosion rate of the chain, and drive the cam mechanism by using the kinetic energy of the chain itself transmission, so that the automatic operation of the lubricating oil recovery supercharging is realized, external energy input is not needed, and the system complexity is reduced.

[0028] 3. The cooperative action of the protective structure and the lubricating system of the present application makes the chain keep stable transmission under the instantaneous impact load of the ship, reduces the abnormal wear caused by uneven lubrication or corrosion, the inclined flow guide design of the concentrated groove and the detachable filter assembly facilitate impurity cleaning and system maintenance, improve the long-term use reliability, the closed-loop lubricating oil circulation system reduces the leakage risk, and direct discharge of lubricating oil is avoided to pollute the marine environment. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a schematic view of the overall structure of the present application.

[0030] Figure 2 It is a schematic view of the chain body protective ring structure of the present application.

[0031] Figure 3 It is a schematic view of the chain body structure of the present application.

[0032] Figure 4 It is a schematic view of the accessory structure of the present application.

[0033] Figure 5The schematic view of the lubricating oil passage structure of the present application.

[0034] Figure 6 The schematic view of the oil supply box structure of the present application.

[0035] Figure 7 The first schematic view of the recovery seat structure of the present application.

[0036] Figure 8 The second schematic view of the recovery seat structure of the present application.

[0037] Figure 9 The schematic view of the driving structure of the present application.

[0038] Figure 10 The schematic view of the cam structure of the present application.

[0039] In the figure: 1, chain body; 2, protective ring; 3, top plate; 4, bottom plate; 5, oil supply box; 6, oil inlet; 7, fixed plug; 8, partition; 9, balance spring; 10, oil brush; 11, concentration groove; 12, recovery pipe; 13, recovery seat; 14, return pipe; 15, one-way air inlet; 16, opening; 17, spring piston; 18, pressure receiving plate; 19, guide pipe; 20, double-head 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, turning guide. DETAILED DESCRIPTION

[0040] Hereinafter, the present application will be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, under the premise of no conflict, the embodiments described below or the technical features between them can be combined to form new embodiments. It is known that the described embodiments are only a part of the embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0041] Please refer to Figures 1 to 10 The present application provides a technical solution: a special precise roller chain for marine complex environment, which comprises a chain body 1 and accessories, and the chain body 1 is a plurality of chains connected by long pin shafts, which can bear larger load.

[0042] As Figures 1-3As shown, 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 arranged according to the shape of the transmission state of the chain body 1. The inside of the protective ring 2 does not contact the chain body 1 and does 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 entire accessory can be fixed in the equipment through the top plate 3 and the bottom plate 4.

[0043] As shown in Figure 4 , Figure 5 , the top plate 3 is provided with a dynamic lubricating structure, which includes an oil supply box 5 fixedly installed on the top plate 3. The oil supply box 5 is provided with an oil inlet 6, which can be connected with a lubricating oil storage tank, or artificial lubricating oil is added to 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 plate 8 is movably installed in the oil supply box 5. The partition plate 8 divides the oil supply box 5 into two parts, and the middle part of the partition plate 8 is provided with a through hole. The partition plate 8 is fixedly connected with a balance spring 9, and the elastic force of the balance spring 9 acts on the partition plate 8, so that the partition plate 8 is in the upper half of the oil supply box 5. At this time, the through hole of the partition plate 8 is closed by the fixed plug 7. After the lubricating oil is added to the oil supply box 5, the gravity of the lubricating oil can make the partition plate 8 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 plate 8 adopts a tapered plugging structure. When the lubricating oil gravity makes the partition plate 8 move downward, there is a gap between the fixed plug 7 and the through hole, and the lubricating oil can slowly seep out, automatically lubricating the chain body 1.

[0044] As shown in Figure 6 , further, the bottom of the partition plate 8 is also fixedly installed with an oil brush 10, which is arranged close to the through hole. The lubricating oil can flow along the oil brush 10, and the downward movement of the partition plate 8 can make the oil brush 10 contact the chain body 1. The oil brush 10 is made of capillary adsorption material, such as nylon-copper wire composite bristles. The handle of the oil brush 10 is arranged around the through hole and has a cavity therein, which is in communication with the through hole and the bristles, so as to guide the lubricating oil and ensure that the seepage lubricating oil is preferentially adsorbed by the oil brush 10. When the chain moves, the oil brush 10 contacts and rubs the surface of the chain, and the lubricating oil is uniformly dispersed to the entire bristles and coated on the chain through capillary action and mechanical friction.

[0045] As shown in Figure 7 , Figure 8As shown in the figure, in order to improve the utilization rate of lubricating oil, the application sets a recycling structure for lubricating oil on the bottom plate 4, first, the bottom of the top plate 3 is provided with a collection groove 11, the bottom surface of the collection groove 11 is inclined, and the residual amount of lubricating oil coated by the oil brush 10 can enter the collection groove 11 after lubrication and be collected along the inclined bottom surface, the bottom of the collection groove 11 is provided with a recovery pipe 12, and the recovery pipe 12 is connected to the recovery seat 13 of the bottom plate 4, the residual lubricating oil can enter the recovery seat 13 from the recovery pipe 12, the recovery seat 13 is fixedly connected with a return pipe 14, the return pipe 14 is connected with the oil supply box 5, by applying pressure, the lubricating oil in the recovery seat 13 can be recycled to the oil supply box 5 for reuse, and the recovery seat 13 is provided with a filter assembly to filter impurities in the lubricating oil.

[0046] As Figure 8 shown, the application improves the recycling of lubricating oil by increasing the air pressure in the recovery seat 13, the recovery seat 13 is a circular seat, one side of which is provided with a straight groove, the side surface of the straight groove is provided with a one-way air inlet 15, the connection between the straight groove and the recovery seat 13 is provided with a one-way valve to prevent lubricating oil from flowing into the straight groove, and the end surface of the straight groove is provided with an opening 16, the opening 16 is provided with a spring piston 17, the spring piston 17 is fixedly connected with a pressure receiving plate 18, when the pressure receiving plate 18 is reciprocally pushed, by the setting of two one-way structures, the negative pressure generated by the spring piston 17 can first extract external gas into the straight groove, and then push the gas into the recovery seat 13, thereby continuously increasing the pressure in the recovery seat 13 and making the lubricating oil therein enter the oil supply box 5 for recycling.

[0047] As Figure 8 , Figure 9 shown, 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-head plug 20 is movably installed in the conduit 19, the double-head plug 20 can move in the conduit 19 and can only close one of the recovery pipe 12 or the return pipe 14 at the same time, the double-head 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-head plug 20 to approach the return pipe 14, the recovery pipe 12 is opened and the return pipe 14 is closed, at this time, the lubricating oil is supplied from the oil supply box 5, and when the lifting plate 21 drives the double-head plug 20 to move away from the return pipe 14, the recovery pipe 12 is closed and the return pipe 14 is opened, the lubricating oil can be recycled from the return pipe 14 and re-enter the oil supply box 5 for supply, at this time, the lubricating oil has been consumed, and the residual part can be temporarily stored in the collection groove 11 and the recovery pipe 12 after dripping again, and the collection groove 11 and the recovery pipe 12 can be disassembled for cleaning.

[0048] AsFigure 9 As shown, the control seat 22 can use an electrically controlled push rod to drive the lifting plate 21 to move to control the double-headed plug 20. The control seat 22 can also use a manually adjusted latch structure to fix the lifting plate 21 in two corresponding positions, corresponding to the two open states of the double-headed plug 20.

[0049] like Figure 10 As shown, a driving structure is provided on the base plate 4 for the spring piston 17, which applies intermittent reciprocating pressure to the pressure plate 18. The 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 base plate 4, and a limiting groove is provided on the guide seat 23. A slide 24 is slidably installed in the limiting groove, and a return spring 25 is connected to the slide 24. The elastic force of the return spring 25 makes the slide 24 be at the top of the limiting groove. A rotating shaft 26 is rotatably installed in the slide 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 slide 24, and a pull rope 30 is connected to the hanging plate 29. The other end of the pull rope 30 The end is connected to the lifting plate 21, and the pull rope 30 can adjust the direction through the steering guide 31. When the lifting plate 21 rises, it drives the double-headed plug 20 to move, and opens the return pipe 14 to the recovery state. The lifting plate 21 generates a pulling force through the pull rope 30 on the hanging plate 29, which can drive the slide 24 to move down, and 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 the cam 28 rotates. At this time, the cam 28 moves down to the side of the pressure plate 18. When the cam 28 rotates, the spring piston 17 can be driven back and forth to increase the pressure of the recovery seat 13, so that the lubricating oil enters the oil box 5 from the return pipe 14.

[0050] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. Special precision roller chain for ships resistant to complex marine environments, including a chain body and protective accessories, characterized by: The chain body is connected by long pin shafts and multiple rows of single chains, and the accessory includes protective rings arranged on both sides of the chain body and matched with the shape of the chain transmission, and the protective rings are fixed by the top plate and the bottom plate. The dynamic lubrication structure is integrated in the top plate, and includes an oil supply box that releases lubricating oil by gravity and an oil brush that contacts the chain body when oil is supplied, and the lubricating oil is evenly coated on the surface of the chain by the oil brush. The lubricating oil recovery structure is arranged on the bottom plate, and includes a concentrated groove with inclined flow guide, a recovery seat with gas pressurization, and a pipe assembly with switchable flow direction, and through the synchronous driving of the cam mechanism by the transmission of the chain body, the recovery seat is pressurized, and the residual lubricating oil is recycled to the oil supply box for recycling. 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 corrosion prevention in marine environment are realized. In the dynamic lubrication structure, the balance of the partition plate and the balance spring in the oil supply box controls the release of lubricating oil. When the partition plate moves down, the oil brush contacts the surface of the chain, and the lubricating oil penetrates evenly into the chain gap as the chain body rotates. An oil inlet is arranged on the oil supply box, and a fixed plug is vertically arranged in the oil supply box. The partition plate is movably arranged in the oil supply box, and the partition plate divides the oil supply box into upper and lower parts, and a through hole is arranged in the middle of the partition plate, the elastic force of the balance spring can make the partition plate in the upper half of the oil supply box, and the through hole of the partition plate is closed by the fixed plug. The oil brush is fixedly arranged on the bottom of the partition plate, and the oil brush is arranged close to the through hole. In the lubricating oil recovery structure, the spring piston and the cam in the recovery seat are linked to pressurize the inside of the recovery seat, and the recovered lubricating oil is directed to flow back to the oil supply box through the return pipe. The pipe assembly switches the recovery and return paths by the double-head plug. A driving structure is arranged on the spring piston on the bottom plate, and the driving structure includes a guide seat arranged on the bottom plate, and a limiting groove is arranged on the guide seat, a sliding seat is slidably arranged in the limiting groove, a return spring is connected to the sliding seat, a rotating shaft is rotatably arranged in the sliding seat, a sprocket is arranged in the middle of the rotating shaft, and a cam is arranged at the end of the rotating shaft, and the sprocket can engage with the chain body. A hanging plate is fixedly connected to the sliding seat, and a pull rope is connected to the hanging plate.

2. The marine complex environment resistant special precision roller chain for ships according to claim 1, characterized in that: The concentrated groove is arranged below the top plate, and the bottom surface of the concentrated groove is inclined, a recovery pipe is arranged at the bottom of the concentrated groove, and the recovery pipe is connected to the recovery seat on the bottom plate.

3. The marine complex environment resistant special precision roller chain for ships according to claim 2, characterized in that: A return pipe is fixedly connected to the recovery seat, and the return pipe is connected to the oil supply box, and by applying pressure, the lubricating oil in the recovery seat can be recovered to the oil supply box, and a filter assembly is arranged in the recovery seat.

4. The marine complex environment resistant special precision roller chain for ships according to claim 3, characterized in that: The recovery seat is a circular seat, and a straight groove is arranged on the recovery seat, a one-way air inlet is arranged on the side surface of the straight groove, and a one-way valve is arranged at the connection between the straight groove and the recovery seat.

5. The marine complex environment resistant special precision roller chain for ships as claimed in claim 4, wherein: An opening is arranged on the end surface of the straight groove, and a spring piston is arranged in the opening, and a pressure receiving plate is fixedly connected to the spring piston.

6. The marine special precision roller chain for complex marine environment according to claim 5, characterized in that: The pipe assembly is an L-shaped pipe connected between the recovery pipe and the return pipe, a double-head plug is movably arranged in the pipe, the double-head plug can move in the pipe, and one of the recovery pipe or the return pipe is closed by the double-head plug. The double-end plug is connected to the lifting plate, and the lifting plate is connected to the control seat to drive the lifting plate to move.

7. The marine complex environment resistant special precision roller chain for ships as claimed in claim 6, wherein: The other end of the pull rope is connected to the lifting plate, the pull rope is adjusted in direction by the turning guide, the lifting plate can drive the sliding seat to move, and the cam is located at the side of the pressure plate.

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