Marine heavy-load self-lubricating wear-resistant bearing and preparation method thereof

Abstract

The invention relates to the technical field of bearings, and discloses a marine heavy-load self-lubricating wear-resistant bearing and a preparation method thereof.The marine heavy-load self-lubricating wear-resistant bearing comprises a bearing base and a connecting seat arranged at the top of the bearing base, bearing bodies are connected to the left side and the right side of the connecting seat correspondingly, and a connecting disc is arranged on one side of each bearing body and fixedly connected with the connecting seat; the top of the bearing base is slidably connected with two sets of first moving blocks, and the top of the bearing base is further provided with two sets of containing grooves. According to the marine heavy-duty bearing, through arrangement of a second moving block, a first clamping groove, a fixing hoop and a first baffle, the effect of stabilizing the whole device is achieved, meanwhile, the whole structure is conveniently maintained, and the problems that most of existing marine heavy-duty bearings are single in function, poor in stability and inconvenient to maintain are solved. The problems that in the using process, extra abrasion is prone to occurring in the device, maintenance operation is inconvenient, and the using effect is affected are solved.

Description

Technical Field

[0001] The invention relates to the technical field of bearings, in particular to a heavy-load self-lubricating wear-resistant bearing for ships and a preparation method thereof. Background Art

[0002] Marine heavy-duty bearings refer to bearings used to bear heavy loads in marine equipment, and are usually used in high-load equipment such as marine engines. The main types of marine heavy-duty bearings include self-aligning ball bearings and sliding bearings, of which self-aligning ball bearings include 1224MC3 bearings, and sliding bearings are mostly babbitt alloy bearings. Marine heavy-duty bearings are widely used in high-load equipment such as marine engines, hydraulic systems, and transmissions. For example, the bearings of marine engines need to withstand multiple forces such as gas pressure, dynamic inertia force, centrifugal force, and friction, but existing marine heavy-duty bearings still have some problems during actual use;

[0003] For example, application number CN202011346102.0 discloses a wide temperature range self-lubricating bearing and a preparation method thereof, including a bearing substrate, a microtexture and a composite coating, wherein the microtexture is arranged on the surface of the bearing substrate, and the composite coating is deposited on the surface of the microtexture; the composite coating includes a first coating and a second coating, and the first coating and the second coating are alternately superimposed, and have good self-lubricating effect, can reduce bearing wear, and increase service life. Most of the existing heavy-load marine bearings have a single function, and their stability is usually poor. During use, they are prone to additional internal wear, and it is not convenient to perform maintenance operations on them, which affects the use effect.

[0004] In view of the above problems, a heavy-load self-lubricating wear-resistant bearing for ship and a preparation method thereof are proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a heavy-loaded self-lubricating wear-resistant bearing for use on a ship and a method for preparing the same. By adopting the device to work, the problem that most of the existing heavy-loaded bearings for use on a ship have a single function, their stability is usually poor, they are prone to additional internal wear during use, and they are inconvenient to perform maintenance operations, which affects the use effect is solved.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a heavy-load self-lubricating wear-resistant bearing for ships, comprising a bearing base and a connecting seat arranged on the top of the bearing base, the left and right sides of the connecting seat are both connected with a bearing body, a connecting disk is arranged on one side of the bearing body, and the connecting disk is fixedly connected to the connecting seat, the top of the bearing base is slidably connected with a moving block 1, and the moving block 1 is provided with two groups, the top of the bearing base is also provided with a placement groove, and the placement groove is provided with two groups, and a fixing hoop is detachably provided inside the placement groove, the bearing body is provided with a quantity control mechanism, the quantity control mechanism is used to add lubricating oil to the inside of the bearing body, the quantity control mechanism includes an oil filling port opened on the top of the connecting disk, and the top of the connecting disk is slidably connected with a moving block 2.

[0007] Preferably, the bottom of the moving block 1 is fixedly connected to a clamping block 1, and one side of the clamping block 1 is fixedly connected to a spring 1, and one end of the spring 1 is fixedly connected to the inside of the bearing base.

[0008] Preferably, a card slot 1 is provided on the outer side of the fixing hoop, and the card slot 1 is slidably matched with a card block 1, the fixing hoop is slidably matched with a connecting seat, and a spring 2 is fixedly connected to one side of the moving block 2.

[0009] By adopting the above structural design and arranging the fixing hoop and the connecting seat, the installation stability of the overall structure is improved, and the use is convenient.

[0010] Preferably, one side of the spring two is fixedly connected to baffle one, and the baffle one is slidably matched with the oil filling port. The inside of the connecting plate is also fixedly connected to spring three, one end of the spring three is fixedly connected to baffle two, and one side of the baffle two is fixedly connected to a contact block.

[0011] Preferably, the second baffle is located below the first baffle, the inner side of the bearing body is fixedly connected with a bearing outer ring, and balls are also arranged inside the bearing body, and the balls are in contact with the bearing outer ring.

[0012] By adopting the above structural design, through the arrangement of the spring three and the baffle plate two, the oil filling port of the device can be closed, thereby improving the use effect.

[0013] Preferably, a bearing inner ring is rotatably connected to the interior of the bearing body, and a fixing plate is fixedly connected to the interior of the bearing body. The fixing plate is rotatably connected to the bearing inner ring, and a contact port is provided on the top of the fixing plate.

[0014] Preferably, the contact port is communicated with the oil filling port, an adsorption sponge is fixedly connected to the interior of the bearing body, a protective plate is detachably provided on one side of the bearing body, a protrusion is fixedly connected to one side of the protective plate, an extension block is fixedly connected to one side of the connecting plate, and the extension block is slidably fitted with the protrusion.

[0015] By adopting the above structural design and providing the protective plate, the protective performance of the overall device is improved, making it easier to use.

[0016] Preferably, both the extension block and the protrusion are provided with through openings, a sealing ring is fixedly connected to one side of the protective plate, and a moving block three is slidably connected to one side of the bearing body.

[0017] Preferably, one end of the movable block three is fixedly connected to a spring four, and one end of the spring four is fixedly connected to the inside of the outer ring of the bearing, one side of the movable block three is fixedly connected to a clamping block three, and the clamping block three is slidably matched with the through port, and a connecting groove is provided on one side of the bearing body, and the connecting groove is slidably matched with the protrusion.

[0018] By adopting the above structural design and arranging the clamping block three and the moving block three, the installation efficiency of the bearing body is improved, and the installation operation of the operator is convenient.

[0019] A method for preparing a heavy-load self-lubricating wear-resistant bearing for a ship comprises the following steps:

[0020] Step 1: Prepare materials with pig iron, scrap steel and ferroalloy and melt molten iron, add carbon, silicon, manganese, chromium and sulfur and other substances into the molten iron, and draw them into ductile iron pipes through vertical continuous casting, and turn and grind the ductile iron pipes to obtain ball bearings;

[0021] Step 2: polishing the base surfaces of the bearing outer ring and the bearing inner ring, and then cleaning and drying the bearing outer ring and the bearing inner ring;

[0022] Step 3, placing multiple groups of balls inside the bearing body, and making the balls contact with the outer ring and the inner ring of the bearing;

[0023] Step 4: Apply protective coating 1 to the inner side of the bearing outer ring and apply protective coating 2 to the outer side of the bearing inner ring.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present application achieves the function of stabilizing the entire device by setting the movable block 2, the card slot 1, the fixing hoop and the baffle 1, and at the same time facilitates the maintenance of the entire structure, thereby solving the problem that most of the existing heavy-duty marine bearings have a single function, their stability is usually poor, they are prone to additional internal wear during use, and it is not convenient to perform maintenance operations on them, which affects the use effect.

[0026] 2. The present application achieves the effect of improving the preparation method and thus increasing the service life of the overall structure by setting up a sealing ring, a bearing outer ring, a protective coating 1 and a protective coating 2, promotes the work flow, and solves the problem that the castings provided by the existing bearing casting method contain pores, sand holes, slag inclusions and shrinkage defects. During use, the friction factors of the overall structure may increase due to the defects, thereby reducing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a structural diagram of a fixing hoop and a clamping block of the present invention;

[0029] Figure 3 It is a structural diagram of the connection disk and the moving block 2 of the present invention;

[0030] Figure 4 A structural diagram of a bearing outer ring and a baffle of the present invention;

[0031] Figure 5 For the present invention Figure 4 The structure diagram at A is enlarged;

[0032] Figure 6 It is a structural diagram of the adsorption sponge and the moving block of the present invention;

[0033] Figure 7 It is a structural diagram of the protective plate and the bump of the present invention;

[0034] Figure 8 It is a structural diagram of the extension block and the clamping block of the present invention;

[0035] Fig. 9 This is a schematic diagram of the bearing addition amount of the present invention.

[0036] In the figure: 1. bearing base; 11. moving block 1; 111. clamping block 1; 112. spring 1; 12. placement groove; 121. fixing hoop; 122. clamping groove 1; 2. connecting seat; 3. bearing body; 31. connecting plate; 311. oil filling port; 312. moving block 2; 313. spring 2; 314. baffle 1; 315. spring 3; 316. baffle 2; 317. contact block; 32. bearing outer ring; 321. ball; 322. bearing inner ring; 3221. fixing plate; 3222. contact port; 323. adsorption sponge; 33. protective plate; 331. convex block; 332. extension block; 333. through port; 334. sealing ring; 34. moving block 3; 341. spring 4; 342. clamping block 3; 343. connecting groove. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, 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 creative work are within the scope of protection of the present invention.

[0038] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0039] Combination Figure 1-Figure 4 A heavy-load self-lubricating wear-resistant bearing for ship, comprising a bearing base 1 and a connecting seat 2 arranged on the top of the bearing base 1, a bearing body 3 is connected to the left and right sides of the connecting seat 2, a connecting plate 31 is arranged on one side of the bearing body 3, and the connecting plate 31 is fixedly connected to the connecting seat 2, a moving block 11 is slidably connected to the top of the bearing base 1, and the moving block 11 is provided in two groups, a placement groove 12 is also provided on the top of the bearing base 1, and the placement groove 12 is provided in two groups, a fixing hoop 121 is detachably provided inside the placement groove 12, and a control mechanism is provided on the bearing body 3, and the control mechanism is used to add lubricating oil to the inside of the bearing body 3, and the control mechanism includes an oil filling port 311 opened on the top of the connecting plate 31, and a moving block 2 312 is slidably connected to the top of the connecting plate 31.

[0040] The present invention will be further described below in conjunction with the embodiments.

[0041] Embodiment 1:

[0042] In order to solve the problems that most of the existing heavy-duty marine bearings have single functions, poor stability, and are prone to extra wear inside during use, and are inconvenient to maintain and operate, which affects the use effect, this embodiment discloses the following technical solutions, specifically as follows: Figure 1-Figure 8As shown, a clamping block 111 is fixedly connected to the bottom of the moving block 11, and a spring 112 is fixedly connected to one side of the clamping block 111, and one end of the spring 112 is fixedly connected to the inside of the bearing base 1, a clamping groove 122 is provided on the outside of the fixing hoop 121, and the clamping groove 122 is slidably matched with the clamping block 111, and the fixing hoop 121 is slidably matched with the connecting seat 2, a spring 2 313 is fixedly connected to one side of the moving block 2 312, a baffle 1 314 is fixedly connected to one side of the spring 2 313, and the baffle 1 314 is slidably matched with the oil filling port 311, and a spring 315 is also fixedly connected to the inside of the connecting plate 31, one end of the spring 315 is fixedly connected to the baffle 2 316, and one side of the baffle 2 316 is fixedly connected to the contact block 317 The second baffle plate 316 is located below the first baffle plate 314. The inner side of the bearing body 3 is fixedly connected with the bearing outer ring 32. The interior of the bearing body 3 is also provided with a ball 321, which contacts the bearing outer ring 32. The interior of the bearing body 3 is also rotatably connected with the bearing inner ring 322. The interior of the bearing body 3 is also fixedly connected with a fixing plate 3221, which is rotatably connected with the bearing inner ring 322. A contact port 3222 is provided on the top of the fixing plate 3221, which is communicated with the oil filling port 311. An adsorption sponge 323 is also fixedly connected to the interior of the bearing body 3. A protective plate 33 is detachably provided on one side of the bearing body 3. A protrusion 331 is fixedly connected to one side of the protective plate 33. One side of the connecting plate 31 is fixedly connected to There is an extension block 332, and the extension block 332 is slidably matched with the protrusion 331, and a through hole 333 is provided on the extension block 332 and the protrusion 331, and a sealing ring 334 is fixedly connected to one side of the protective plate 33, and a moving block three 34 is slidably connected to one side of the bearing body 3, and one end of the moving block three 34 is fixedly connected to a spring four 341, and one end of the spring four 341 is fixedly connected to the inside of the bearing outer ring 32, and a clamping block three 342 is fixedly connected to one side of the moving block three 34, and the clamping block three 342 is slidably matched with the through hole 333, and a connecting groove 343 is provided on one side of the bearing body 3, and the connecting groove 343 is slidably matched with the protrusion 331. When the device is used, the connecting seat 2 can be installed on the top of the bearing base 1. When the connecting seat 2 is left and right When the connecting plates 31 at both ends are at the top of the bearing base 1, the fixing hoop 121 can be installed on the outer side of the connecting seat 2, so that the two ends of the fixing hoop 121 are inside the placement groove 12, and the fixing hoop 121 is pressed down. Under the setting of the spring 112 and the trapezoidal surface of the clamping block 111, the clamping groove 122 on the fixing hoop 121 automatically engages with the clamping block 111, and the installation of the connecting seat 2 can be completed. After the bearing body 3 has been used for a period of time, the moving block 2 312 located on the top of the connecting plate 31 can be moved. The moving block 2 312 drives the baffle 1 314 to move, thereby opening the oil filling port 311, and lubricating oil can be added to the inside of the bearing body 3. When the filling is completed, the moving block 2 312 is released. Under the action of the spring 2 313,Baffle plate 1 314 automatically closes the oil filling port 311. When the bearing body 3 needs to be removed from the connecting plate 31, the moving blocks 34 on the left and right sides of the bearing body 3 can be pulled. The moving blocks 334 drive the clamping blocks 342 to move, so that the clamping blocks 342 are moved out of the protrusions 331 and the through openings 333 on the extension blocks 332. At this time, the protective plate 33 can be removed from one side of the bearing body 3, and then the bearing body 3 can be removed from one side of the bearing body 3. At this time, due to the setting of the contact port 3222, the contact block 317 loses its force. Under the action of the spring 315, the baffle plate 2 316 moves to close the oil filling port 311 to prevent dust from entering the interior of the connecting plate 31. At this time, the bearing body 3 can be maintained, which can stabilize the overall device and facilitate the maintenance of the overall structure.

[0043] Embodiment 2:

[0044] In order to solve the problem that the casting provided by the existing bearing casting method contains pores, sand holes, slag inclusions and shrinkage defects, and during use, the friction factor of the overall structure may be increased due to the defects, thereby reducing the service life of the device, this embodiment discloses the following technical solutions, specifically as follows Figure 1-Figure 9 As shown, pig iron, scrap steel and ferroalloy are used to configure materials and melt molten iron, and carbon, silicon, manganese, chromium and sulfur are added to the molten iron, and the ductile iron pipes are drawn by vertical continuous casting method. The ductile iron pipes are heated to the eutectoid transformation temperature of 820 degrees Celsius in a pit or box heat treatment furnace and kept warm for one hour; the ductile iron pipes treated in the previous step are furnace cooled to the eutectoid transformation temperature of 710 degrees Celsius and kept warm for one hour; when the ductile iron pipes treated in the above step are furnace cooled to below 500 degrees Celsius, they are air cooled to room temperature, at this time, the ductile iron pipes can be turned and ground to obtain ball bearings 321, and when the ball bearings 321 are assembled with the bearing outer ring 32 and the bearing inner ring 322, the shaft can be moved to the shaft. The inside of the outer ring 32 of the bearing is coated with a protective coating 1, which is composed of aluminum titanium nitride and chromium aluminum nitride. Its main functions include resisting high-temperature oxidation, protecting the mold, preventing cracks, etc., and can effectively avoid damage to the inside of the outer ring 32 of the bearing. A protective coating 2 is applied to the outside of the inner ring 322 of the bearing. The protective coating 2 is composed of titanium nitride and titanium carbide: these coatings form a hard film on the surface of the bearing through physical vapor deposition technology, have high hardness and good wear resistance, are suitable for high load and high temperature environments, greatly improve the transmission effect of the ball 321, and achieve the effect of improving the preparation method to increase the service life of the overall structure, thereby promoting the work process.

[0045] It should be noted that the above-mentioned electrical components are equipped with power supplies and their control methods are prior art. In order to avoid redundant description, they are uniformly described here; and this application is mainly used to protect mechanical equipment, so the control method and circuit connection are no longer explained in detail. In this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heavy-load self-lubricating wear-resistant bearing for use on a ship, comprising a bearing base (1) and a connecting seat (2) arranged on the top of the bearing base (1), wherein the left and right sides of the connecting seat (2) are both provided with a bearing body (3) connected thereto, and characterized in that: A connecting plate (31) is provided on one side of the bearing body (3), and the connecting plate (31) is fixedly connected to the connecting seat (2); a moving block (11) is slidably connected to the top of the bearing base (1), and two groups of moving blocks (11) are provided; a placement groove (12) is also provided on the top of the bearing base (1), and two groups of placement grooves (12) are provided; a fixing hoop (121) is detachably provided inside the placement groove (12); a control mechanism is provided on the bearing body (3), and the control mechanism is used to add lubricating oil to the inside of the bearing body (3); the control mechanism includes an oil filling port (311) provided on the top of the connecting plate (31); and a moving block (312) is slidably connected to the top of the connecting plate (31).

2. A heavy-load self-lubricating wear-resistant bearing for ships according to claim 1, characterized in that: The bottom of the moving block 1 (11) is fixedly connected to a clamping block 1 (111), and one side of the clamping block 1 (111) is fixedly connected to a spring 1 (112), and one end of the spring 1 (112) is fixedly connected to the inside of the bearing base (1).

3. A heavy-load self-lubricating wear-resistant bearing for ships according to claim 2, characterized in that: A first clamping groove (122) is provided on the outer side of the fixing hoop (121), and the first clamping groove (122) is slidably matched with the first clamping block (111), the fixing hoop (121) is slidably matched with the connecting seat (2), and a second spring (313) is fixedly connected to one side of the moving block (312).

4. A heavy-load self-lubricating wear-resistant bearing for ships according to claim 3, characterized in that: One side of the spring 2 (313) is fixedly connected to a baffle 1 (314), and the baffle 1 (314) is slidably matched with the oil filling port (311). The interior of the connecting plate (31) is also fixedly connected to a spring 3 (315), one end of the spring 3 (315) is fixedly connected to a baffle 2 (316), and one side of the baffle 2 (316) is fixedly connected to a contact block (317).

5. A heavy-load self-lubricating wear-resistant bearing for ships according to claim 4, characterized in that: The second baffle plate (316) is located below the first baffle plate (314); the inner side of the bearing body (3) is fixedly connected to a bearing outer ring (32); a ball (321) is also arranged inside the bearing body (3); and the ball (321) is in contact with the bearing outer ring (32).

6. A heavy-load self-lubricating wear-resistant bearing for ships according to claim 5, characterized in that: The bearing body (3) is also rotatably connected to a bearing inner ring (322), and the bearing body (3) is also fixedly connected to a fixing plate (3221), the fixing plate (3221) is rotatably connected to the bearing inner ring (322), and a contact port (3222) is provided on the top of the fixing plate (3221).

7. A heavy-load self-lubricating wear-resistant bearing for ships according to claim 6, characterized in that: The contact port (3222) is communicated with the oil filling port (311); an adsorption sponge (323) is fixedly connected to the interior of the bearing body (3); a protective plate (33) is detachably provided on one side of the bearing body (3); a protrusion (331) is fixedly connected to one side of the protective plate (33); an extension block (332) is fixedly connected to one side of the connecting plate (31); and the extension block (332) is slidably matched with the protrusion (331).

8. A heavy-load self-lubricating wear-resistant bearing for ships according to claim 7, characterized in that: The extension block (332) and the protrusion (331) are both provided with a through opening (333); a sealing ring (334) is fixedly connected to one side of the protection plate (33); and a moving block three (34) is slidably connected to one side of the bearing body (3).

9. A heavy-load self-lubricating wear-resistant bearing for ships according to claim 8, characterized in that: One end of the movable block three (34) is fixedly connected to a spring four (341), and one end of the spring four (341) is fixedly connected to the inside of the bearing outer ring (32); one side of the movable block three (34) is fixedly connected to a clamping block three (342), and the clamping block three (342) is slidably matched with the through opening (333); one side of the bearing body (3) is provided with a connecting groove (343), and the connecting groove (343) is slidably matched with the protrusion (331).

10. A method for preparing a heavy-load self-lubricating wear-resistant bearing for a ship according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Prepare materials using pig iron, scrap steel and ferroalloy and melt molten iron, add carbon, silicon, manganese, chromium and sulfur into the molten iron, and draw them into ductile iron pipes through a vertical continuous casting method, and turn and grind the ductile iron pipes to obtain balls (321); Step 2: polishing the base surfaces of the bearing outer ring (32) and the bearing inner ring (322), and then cleaning and drying the bearing outer ring and the bearing inner ring; Step 3: placing multiple groups of balls (321) inside the bearing body (3), and making the balls (321) contact the bearing outer ring (32) and the bearing inner ring (322); Step 4: Apply protective coating 1 to the inner side of the bearing outer ring (32), and apply protective coating 2 to the outer side of the bearing inner ring (322).

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