Rudder air cooling intermediate bearing

Abstract

The invention relates to the technical field of bearings, and provides a rudder air-cooling intermediate bearing which comprises an outer ring, a first air inlet pipe and an outer surface fixedly installed on the outer ring, a one-way valve is arranged on one side of the first air inlet pipe, a second air inlet pipe is fixedly installed on one side of the first air inlet pipe, and a heating tank is fixedly installed at one end of the second air inlet pipe. According to the bearing, lubricating oil is heated at the position of the inner cavity in the bearing through the heating piece, the heating tank is heated by starting the heater, water in the heating tank is heated, the lubricating oil in the inner cavity in the bearing is heated, and the lubricating oil in the inner cavity in the bearing is heated through the heating piece. After heating, water in the heating tank generates water vapor, the water vapor enters a first air inlet pipe through a second air inlet pipe, by rotating a one-way valve, the water vapor in the heating tank can enter a bearing inner cavity through the second air inlet pipe and the first air inlet pipe, and at the moment, the water vapor can make contact with lubricating oil in the inner cavity and heat the lubricating oil.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bearings, in particular to a rudder air-cooled intermediate bearing. BACKGROUND

[0002] The rudder system is a key component for ship steering and navigation safety. The intermediate bearing, as an important supporting element in the rudder transmission structure, is mainly used for bearing the weight of the rudder shaft, transmitting load and ensuring the smooth rotation of the rudder shaft during operation. Since the ship is running in the marine environment for a long time, the rudder intermediate bearing usually faces complex working conditions such as high humidity, high salt fog, large temperature difference and frequent load change, and its working reliability and service life directly affect the ship steering performance and safety.

[0003] The existing rudder intermediate bearing mostly adopts oil lubrication or grease lubrication. In low temperature environment or after long time shutdown and restart, the lubricating oil flowability becomes poor, which easily causes lubrication deficiency, and further leads to increased bearing starting resistance, aggravated wear and even stuck phenomenon. Especially in cold sea areas or seasonal low temperature conditions, the problem is more prominent, which seriously affects the starting performance and service life of the rudder system.

[0004] To improve the lubrication condition, part of the existing technology heats the lubricating oil through external heating or circulating oil circuit, but such scheme usually has complex structure, high energy consumption and limited heating efficiency, and it is difficult to quickly and uniformly heat the lubricating oil inside the bearing.

[0005] In addition, the existing rudder intermediate bearing mostly adopts fixed installation of the long shaft. In actual use process, when the long shaft is rusted, worn or needs to be adjusted in length according to the ship structure, the disassembly and replacement operation is relatively cumbersome, not only the maintenance cost is high, but also the ship is stopped for a long time, which is difficult to meet the requirements of modern ships on maintenance efficiency and reliability. SUMMARY

[0006] The present application aims to solve the problem that the existing rudder intermediate bearing mostly adopts oil lubrication or grease lubrication, in low temperature environment or after long time shutdown and restart, the lubricating oil flowability becomes poor, which easily causes lubrication deficiency, and further leads to increased bearing starting resistance, aggravated wear and even stuck phenomenon. Especially in cold sea areas or seasonal low temperature conditions, the problem is more prominent, which seriously affects the starting performance and service life of the rudder system. To improve the lubrication condition, part of the existing technology heats the lubricating oil through external heating or circulating oil circuit, but such scheme usually has complex structure, high energy consumption and limited heating efficiency, and it is difficult to quickly and uniformly heat the lubricating oil inside the bearing.

[0007] To achieve the above objectives, the present invention employs the following technical solution: a ship rudder air-cooled intermediate bearing, comprising: an outer ring, an air inlet pipe one, fixedly installed on the outer surface of the outer ring, a one-way valve provided on one side of the air inlet pipe one, an air inlet pipe two fixedly installed on one side of the air inlet pipe one, a heating tank fixedly installed at one end of the air inlet pipe two, a heater for heating the heating tank fixedly installed on one side of the heating tank, an inner cavity opened inside the outer ring, a plurality of balls of equal size being movably connected inside the inner cavity, and the air inlet pipe one penetrating through the inner wall of the inner cavity; A heating chamber is formed on the inner wall of the outer ring, a heating element is installed inside the heating chamber, and a sealing ring is fixedly installed on one side of the heating chamber; The inner ring slides on the outer surface of the plurality of balls. Two protruding rings are fixedly installed on the outer surface of the inner ring, and the two protruding rings are located on both sides of the plurality of balls to prevent the inner ring from derailing.

[0008] The technical effect of the above-mentioned further solution is as follows: the heating element heats the lubricating oil inside the bearing cavity, the heater is activated to heat the heating tank, and the water inside the heating tank is heated. After heating, the water inside generates water vapor, which enters the interior of the air inlet pipe through the second air inlet pipe. By turning the one-way valve, the water vapor inside the heating tank will enter the interior of the bearing cavity through the second air inlet pipe and the first air inlet pipe. At this time, it can contact and heat the lubricating oil inside the cavity. In order to make the lubricating oil heat up faster, an external power supply is connected to the heating element. The heating element is located inside the heating cavity. The heating cavity is connected to the external power supply to generate heat, thereby heating the inner wall of the cavity. The sealing ring is welded to one side of the heating cavity, so that the heating cavity is in a closed state and the heating element inside will not easily fall off.

[0009] In a preferred embodiment, an oil inlet pipe is fixedly installed at the bottom of the outer ring, an oil plug is movably embedded inside the oil inlet pipe, and a stop block is fixedly installed at the bottom of the outer ring.

[0010] The technical effect of adopting the above-mentioned further solution is that the lubricating oil enters the interior of the inner cavity through the oil inlet pipe to lubricate multiple balls, and the lubricating oil inside will not leak out by blocking the oil inlet pipe with the oil plug.

[0011] In a preferred embodiment, a spring is fixedly installed on one side of the stop block, and a limiting telescopic rod is fixedly installed on one side of the stop block. An air plug is fixedly installed on one end of the spring and the limiting telescopic rod.

[0012] The technical effect of the above-mentioned further solution is as follows: the gas after the water vapor heats the lubricating oil is discharged to the outside through the outlet. When the gas enters the air-blocking plug, the torque of the spring is small. At this time, the air-blocking plug can be pushed to one side under the limit of the first limiting telescopic rod. After the movement, the gas is discharged through the outlet. When no gas is discharged, the spring force limits the air-blocking plug to fit against one side of the outlet and block it, preventing the lubricating oil inside the inner cavity from flowing out. The above step can quickly heat the lubricating oil inside the inner cavity. The one-way valve is set so that after the steam inside the heating tank accumulates a certain amount of energy, the one-way valve is opened, and the steam quickly flows into the inner cavity inside the outer ring to achieve rapid heating.

[0013] In a preferred embodiment, the bottom of the outer ring is provided with an air outlet, and the air plug is located on one side of the air outlet to block the oil from flowing out of the air outlet. The inner ring is detachably fitted with a long shaft.

[0014] The technical advantage of adopting the above-mentioned further solution is that the long shaft can be easily disassembled inside the inner ring.

[0015] In a preferred embodiment, a plurality of limiting grooves are provided at the center of the long shaft, and a sliding ring is slidably connected inside the plurality of limiting grooves. A plurality of electric push rods are fixedly installed on one side of the sliding ring.

[0016] The technical effect of adopting the above-mentioned further solution is that by activating the electric push rod to push the sliding ring to slide inside the limiting groove, the included angle between V-shaped rod one and V-shaped rod two will become smaller, and its height will increase.

[0017] In a preferred embodiment, a plurality of limiting telescopic rods are fixedly installed on the outer surface of the long shaft, and a locking block is fixedly installed at one end of each of the plurality of limiting telescopic rods.

[0018] The technical effect of adopting the above-mentioned further solution is that the angle between V-shaped rod one and V-shaped rod two contacts the bottom of the locking block and pushes it to move. At this time, under the limiting of the limiting telescopic rod two, the locking block is locked inside the inner ring and is limited.

[0019] In a preferred embodiment, the plurality of locking blocks are located on the outer surface of the inner ring, and the outer surface of the sliding ring is movably connected to a plurality of V-shaped rods 1. One end of each of the plurality of V-shaped rods 1 is rotatably connected to a V-shaped rod 2, and the ends of the plurality of V-shaped rods 2 away from the plurality of V-shaped rods 1 are movably mounted on one side of the long axis.

[0020] The technical effect of adopting the above-mentioned further solution is that, under the limiting of the second limiting telescopic rod, the locking block is locked inside the inner ring, thus achieving fixation and making installation more convenient.

[0021] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. In this embodiment of the invention, the lubricating oil inside the bearing is heated by a heating element, and the heating tank is heated by starting the heater. The water inside the heating tank is heated, and after heating, the water inside generates water vapor, which enters the interior of the first air inlet pipe through the second air inlet pipe. By turning the one-way valve, the water vapor inside the heating tank enters the interior of the bearing interior through the second air inlet pipe and the first air inlet pipe. At this time, it can contact and heat the lubricating oil inside the interior. The gas heated by the water vapor is discharged to the outside through the air outlet. When the gas enters the air plug, the torque of the spring is small. At this time, the air plug can be pushed to one side under the limit of the first limiting telescopic rod. After the movement, the gas is discharged through the air outlet. When no gas is discharged, the air plug is pressed against the side of the air outlet under the limit of the spring force to block it, preventing the lubricating oil inside the interior from flowing out. The above step can quickly heat the lubricating oil inside the interior.

[0022] 2. In this embodiment of the invention, in order to make the lubricating oil heat up faster, an external power supply is connected to the heating element. The heating element is located inside the heating chamber. The heating chamber is connected to the external power supply to generate heat, thereby heating the inner wall of the inner chamber. The sealing ring is welded to one side of the heating chamber, so that the heating chamber is in a closed state and the heating element inside will not easily fall off.

[0023] 3. In this embodiment of the invention, the connecting shaft inside the bearing is not usually disassembled. However, it is very inconvenient to replace the connecting shaft when it needs to be lengthened due to rust or insufficient length. By activating the electric push rod, the sliding ring is pushed to slide inside the limiting groove. At this time, the angle between V-shaped rod one and V-shaped rod two will become smaller, and its height will increase. The angle between V-shaped rod one and V-shaped rod two contacts the bottom of the locking block and pushes it to move. At this time, under the limiting telescopic rod two, the locking block is locked inside the inner ring, thus achieving fixation. Attached Figure Description

[0024] Figure 1 A schematic diagram of the internal structure of an air-cooled intermediate bearing for a ship's rudder provided by the present invention; Figure 2 A schematic diagram of the air plug structure of an air-cooled intermediate bearing for a ship's rudder provided by the present invention; Figure 3 A schematic diagram of the overall structure of the air plug of an air-cooled intermediate bearing for a ship's rudder provided by the present invention; Figure 4 An enlarged structural schematic diagram of the long axis of a ship's rudder air-cooled intermediate bearing provided by the present invention; Figure 5 A schematic diagram of the connection structure between the long shaft and the bearing of a ship's rudder air-cooled intermediate bearing provided by the present invention; Figure 6 A three-dimensional structural schematic diagram of a ship's rudder air-cooled intermediate bearing provided by the present invention; Figure 7 This invention provides a schematic diagram of the internal structure of an air-cooled intermediate bearing for a ship's rudder.

[0025] Legend: 101. Outer ring; 102. Inlet pipe one; 103. One-way valve; 104. Heating tank; 105. Heater; 106. Inlet pipe two; 107. Ball bearing; 109. Convex ring; 110. Oil inlet pipe; 111. Oil plug; 112. Stop block; 113. Air plug; 114. Spring; 115. Limiting telescopic rod one; 116. Air outlet; 117. Inner cavity; 118. Heating cavity; 119. Heating element; 120. Sealing ring; 121. Long shaft; 122. Electric push rod; 123. Limiting groove; 124. Sliding ring; 125. Limiting telescopic rod two; 126. Locking block; 127. V-shaped rod one; 128. V-shaped rod two; 129. Inner ring. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1 to 7 This embodiment provides a technical solution: a ship rudder air-cooled intermediate bearing, including: an outer ring 101, an air inlet pipe 102 fixedly installed on the outer surface of the outer ring 101, a one-way valve 103 provided on one side of the air inlet pipe 102, an air inlet pipe 2 106 fixedly installed on one side of the air inlet pipe 102, a heating tank 104 fixedly installed at one end of the air inlet pipe 2 106, a heater 105 for heating the heating tank 104 fixedly installed on one side of the heating tank 104, an inner cavity 117 is opened inside the outer ring 101, a plurality of balls 107 are movably connected inside the inner cavity 117, the plurality of balls 107 are of equal size, and the air inlet pipe 102 passes through the inner wall of the inner cavity 117; A heating chamber 118 is formed on the inner wall of the outer ring 101. A heating element 119 is installed inside the heating chamber 118. A sealing ring 120 is fixedly installed on one side of the heating chamber 118. The inner ring 129 slides on the outer surface of multiple balls 107. Two protruding rings 109 are fixedly installed on the outer surface of the inner ring 129. Both protruding rings 109 are located on both sides of the multiple balls 107 to prevent the inner ring 129 from derailing.

[0028] In use, the heating element 119 heats the lubricating oil in the inner cavity 117 of the bearing. The heater 105 is activated to heat the heating tank 104, which heats the water inside the heating tank 104. After heating, the water inside generates water vapor, which enters the inner cavity 102 through the second air inlet pipe 106. By turning the one-way valve 103, the water vapor inside the heating tank 104 enters the inner cavity 117 of the bearing through the second air inlet pipe 106 and the first air inlet pipe 102. At this time, it can contact and heat the lubricating oil inside the inner cavity 117. In order to make the lubricating oil heat up faster, an external power supply is connected to the heating element 119. The heating element 119 is located inside the heating chamber 118. The heating chamber 118 is connected to the external power supply to generate heat, thereby heating the inner wall of the inner cavity 117. The sealing ring 120 is welded to one side of the heating chamber 118, so that the heating chamber 118 is in a closed state and the heating element 119 inside will not easily fall off.

[0029] like Figures 1 to 7 As shown, in one embodiment, an oil inlet pipe 110 is fixedly installed at the bottom of the outer ring 101, and an oil plug 111 is movably embedded inside the oil inlet pipe 110. A stop block 112 is fixedly installed at the bottom of the outer ring 101. Lubricating oil enters the interior of the inner cavity 117 through the oil inlet pipe 110 to lubricate multiple balls 107. By blocking the opening of the oil inlet pipe 110 with the oil plug 111, the lubricating oil inside will not leak out.

[0030] like Figures 1 to 7 As shown, in one embodiment, a spring 114 is fixedly installed on one side of the stop 112, and a limiting telescopic rod 115 is fixedly installed on one side of the stop 112. An air-blocking plug 113 is fixedly installed at one end of the spring 114 and one end of the limiting telescopic rod 115. Gas heated by water vapor to lubricating oil is discharged outdoors through the air outlet 116. When the gas enters the air-blocking plug 113, the torque of the spring 114 is relatively small. At this time, the air-blocking plug 113 can be pushed to one side under the limitation of the limiting telescopic rod 115. After the movement... Gas is discharged through the outlet 116. When no gas is discharged, the spring force of the spring 114 causes the plug 113 to adhere to one side of the outlet 116 and block it, preventing the lubricating oil inside the inner cavity 117 from flowing out. The previous step can quickly heat the lubricating oil inside the inner cavity 117. The one-way valve 103 is set so that after the steam inside the heating tank 104 accumulates a certain amount of energy, the one-way valve 103 will open, and the steam will quickly flow into the inner cavity 117 inside the outer ring 101 to achieve rapid heating.

[0031] like Figures 1 to 7As shown, in one embodiment, an air outlet 116 is provided at the bottom of the outer ring 101, and an air plug 113 is located on one side of the air outlet 116 to block the oil from coming out of the air outlet 116. A long shaft 121 is detachably installed inside the inner ring 129, and the long shaft 121 can be easily disassembled inside the inner ring 129.

[0032] like Figures 1 to 7 As shown, in one embodiment, a plurality of limiting grooves 123 are provided at the center of the long shaft 121. A sliding ring 124 is slidably connected inside the plurality of limiting grooves 123. A plurality of electric push rods 122 are fixedly installed on one side of the sliding ring 124. By activating the electric push rods 122, the sliding ring 124 is pushed to slide inside the limiting grooves 123. At this time, the included angle between the first V-shaped rod 127 and the second V-shaped rod 128 will become smaller, and its height will increase.

[0033] like Figures 1 to 7 As shown, in one embodiment, a plurality of limiting telescopic rods 125 are fixedly installed on the outer surface of the long shaft 121. A locking block 126 is fixedly installed at one end of each of the multiple limiting telescopic rods 125. The angle between the V-shaped rod 127 and the V-shaped rod 128 contacts the bottom of the locking block 126 and pushes it to move. At this time, under the limitation of the limiting telescopic rods 125, the locking block 126 is locked inside the inner ring 129 for limitation.

[0034] like Figures 1 to 7 As shown, in one embodiment, multiple locking blocks 126 are located on the outer surface of the inner ring 129. Multiple V-shaped rods 127 are movably connected to the outer surface of the sliding ring 124. One end of each V-shaped rod 127 is rotatably connected to a V-shaped rod 128. The end of the V-shaped rod 128 away from the V-shaped rods 127 is movably installed on one side of the long shaft 121. At this time, under the limitation of the limiting telescopic rod 125, the locking blocks 126 are locked inside the inner ring 129, achieving fixation and making installation relatively convenient.

[0035] Working principle: During use, the heating element 119 heats the lubricating oil in the inner cavity 117 of the bearing. The heater 105 heats the heating tank 104, heating the moisture inside. This moisture generates steam, which enters the air intake pipe 102 through the second intake pipe 106. By turning the one-way valve 103, the steam from the heating tank 104 enters the bearing inner cavity 117 through the second intake pipe 106 and the first intake pipe 102, contacting and heating the lubricating oil inside. The steam, after heating the lubricating oil, is discharged outdoors through the air outlet 116. When the gas enters the gas-blocking plug 113, the torque of the spring 114 is relatively small. At this time, the gas-blocking plug 113 can be pushed to one side under the limit of the limiting telescopic rod 115. After the movement, the gas is discharged through the gas outlet 116. When no gas is discharged, the gas-blocking plug 113 is pressed against one side of the gas outlet 116 by the elastic limit of the spring 114 to block it, preventing the lubricating oil inside the inner cavity 117 from flowing out. The lubricating oil inside the inner cavity 117 can be heated quickly through the previous step. The one-way valve 103 is set so that the one-way valve 103 can be opened after the steam inside the heating tank 104 accumulates a certain amount of energy. The steam can then flow quickly into the inner cavity 117 inside the outer ring 101 to achieve rapid heating.

[0036] To make the lubricating oil heat up faster, an external power supply is connected to the heating element 119. The heating element 119 is located inside the heating chamber 118. The heating chamber 118 is connected to the external power supply to generate heat, thereby heating the inner wall of the inner cavity 117. The sealing ring 120 is welded to one side of the heating chamber 118, so that the heating chamber 118 is in a closed state and the heating element 119 inside will not fall off easily. Normally, the connecting shaft inside the bearing is not disassembled. When the connecting shaft needs to be replaced, rusted, or is not long enough, it is very inconvenient to replace it with an extended one. By starting the electric push rod (122), the sliding ring (124) is pushed to slide inside the limiting groove (123). At this time, the angle between V-shaped rod one (127) and V-shaped rod two (128) will become smaller and its height will increase. The angle between V-shaped rod one (127) and V-shaped rod two (128) contacts the bottom of the locking block (126) and pushes it to move. At this time, under the limit of the limiting telescopic rod two (125), the locking block (126) is locked inside the inner ring (129) to achieve fixation. When the inner ring (129) rotates, a convex ring (109) is provided. The two inner rings (129) are located on both sides of the ball (107) to prevent the inner ring (129) from derailing when rotating.

[0037] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0038] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A rudder air cooled intermediate bearing, comprising: The outer ring (101) is characterized in that, The air inlet pipe one (102) is fixedly installed on the outer surface of the outer ring (101), one side of the air inlet pipe one (102) is provided with a one-way valve (103), one side of the air inlet pipe one (102) is fixedly installed with an air inlet pipe two (106), one end of the air inlet pipe two (106) is fixedly installed with a heating tank (104), one side of the heating tank (104) is fixedly installed with a heater (105) for heating, the inner cavity (117) is arranged in the inner wall of the outer ring (101), a plurality of rolling balls (107) are movably connected in the inner cavity (117), the sizes of the plurality of rolling balls (107) are equal, and the air inlet pipe one (102) penetrates the inner wall of the inner cavity (117); The heating cavity (118) is arranged in the inner wall of the outer ring (101), the heating sheet (119) is installed in the heating cavity (118), and the sealing ring (120) is fixedly installed on one side of the heating cavity (118); The inner ring (129) slides on the outer surfaces of the plurality of rolling balls (107), the outer surface of the inner ring (129) is fixedly installed with two convex rings (109), and the two convex rings (109) are located on the two sides of the plurality of rolling balls (107) to prevent the inner ring (129) from derailing.

2. A rudder air cooled intermediate bearing according to claim 1, characterized in that: The bottom of the outer ring (101) is fixedly installed with the oil inlet pipe (110), the oil plug (111) is movably embedded in the inner part of the oil inlet pipe (110), and the bottom of the outer ring (101) is fixedly installed with the stop block (112).

3. A rudder air cooled intermediate bearing according to claim 2, characterized in that: The spring (114) and the limiting telescopic rod one (115) are fixedly installed on one side of the stop block (112), and the air plug (113) is fixedly installed on one end of the spring (114) and the limiting telescopic rod one (115).

4. A rudder air cooled intermediate bearing according to claim 3, wherein: The bottom of the outer ring (101) is provided with the air outlet (116), the air plug (113) is located on one side of the air outlet (116) to plug the air outlet (116), and the inner ring (129) is detachably installed with the long shaft (121).

5. A rudder air cooled intermediate bearing according to claim 4, wherein: A plurality of limiting grooves (123) are arranged in the center of the long shaft (121), a plurality of sliding rings (124) are slidably connected in the plurality of limiting grooves (123), and a plurality of electric push rods (122) are fixedly installed on one side of the sliding ring (124).

6. A rudder air cooled intermediate bearing according to claim 5, wherein: A plurality of limiting telescopic rods two (125) are fixedly installed on the outer surface of the long shaft (121), and one end of each of the plurality of limiting telescopic rods two (125) is fixedly installed with a clamping block (126).

7. A rudder air cooled intermediate bearing according to claim 6, characterised in that: The plurality of clamping blocks (126) are located on the outer surface of the inner ring (129).

8. A rudder air cooled intermediate bearing according to claim 7, characterized in that: A plurality of V-shaped rods one (127) are movably connected to the outer surface of the sliding ring (124).

9. A rudder air cooled intermediate bearing according to claim 8, characterized in that: One end of each of the plurality of V-shaped rods one (127) is rotatably connected with a V-shaped rod two (128).

10. A rudder air cooled intermediate bearing according to claim 9, characterized in that: One end of each of the plurality of V-shaped rods two (128) away from the plurality of V-shaped rods one (127) is movably installed on one side of the long shaft (121).

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