A rudder with staggered baffle water-proof rotating disc bearing

Abstract

The utility model belongs to large -scale rotary device field discloses a kind of staggered baffle waterproof turntable bearing for rudder, including outer ring and end cover, the outer ring and end cover are jointly movably connected with inner ring, the inner ring is equipped with several rotating wheel grooves, rotating wheel groove inner wall is rotatably connected with roller, the roller is rotatably connected with outer ring inner wall, the outer ring and end cover are respectively equipped with corresponding screw hole, the end cover is equipped with the connecting hole being communicated with screw hole, the screw hole is connected with countersunk head screw by thread connection.The utility model is provided with multiple sealing structure, such as sealing groove, sealing ring, sealing ring and water baffle ring in baffle, which are jointly arranged in outer ring and end cover, by the close cooperation between these sealing elements, the effective waterproof and anticorrosion function to bearing interior are realized, with the advantages of significantly improving the sealing performance of bearing in harsh marine environment and prolonging service life.

Description

Technical Field

[0001] This utility model relates to the field of large rotating devices, and in particular to a waterproof turntable bearing with staggered baffles for ship rudders. Background Technology

[0002] Slewing bearings are large bearings capable of withstanding combined loads, including large axial and radial loads and overturning moments. They typically feature mounting holes, internal or external gears, lubrication holes, and seals, allowing for a compact host machine design, easy guiding, and convenient maintenance.

[0003] However, due to the harsh operating environment of slewing bearings, high reliability is required, as well as certain requirements for sealing, waterproofing, and corrosion protection. Especially when slewing bearings are used in large rotating devices in coastal and marine environments, they are highly susceptible to corrosion from seawater and other foreign objects. To prevent seawater and other foreign objects from entering and causing premature failure of the slewing bearing, the sealing design and corrosion protection of slewing bearings become particularly important. Utility Model Content

[0004] The present invention aims to provide a waterproof swivel bearing with a staggered baffle for ship rudders, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A waterproof swivel bearing with a staggered baffle for ship rudders includes an outer ring and an end cap. The outer ring and the end cap are movably connected to an inner ring. The inner ring has a plurality of swivel grooves. Rollers are rotatably connected to the inner walls of the swivel grooves. The rollers are rotatably connected to the inner walls of the outer ring. The outer ring and the end cap are respectively provided with corresponding screw holes. The end cap is provided with a connecting hole communicating with the screw holes. Countersunk screws are threaded into the screw holes.

[0007] Preferably, the outer ring and the end cap are each connected to a baffle.

[0008] Preferably, the inner ring has a first side rolling groove, and the end cap has a second side rolling groove, with the first side rolling groove and the second side rolling groove slidably connected to a ball.

[0009] Preferably, the outer ring and the end cap are respectively provided with sealing grooves, and a sealing ring is slidably connected to the inner wall of the sealing groove.

[0010] Preferably, the sealing ring is connected to a sealing ring.

[0011] Preferably, a countersunk sealing gasket is slidably connected to the inner wall of the connecting hole.

[0012] Preferably, the longitudinal section of the countersunk sealing gasket is convex.

[0013] Preferably, a water-blocking ring is connected to the inner wall of the baffle.

[0014] The beneficial effects of this technical solution compared to existing technologies are as follows:

[0015] (1) This utility model has a multi-seal structure consisting of a sealing groove, a sealing ring, a sealing ring and a water-blocking ring in the baffle, which are set together by the outer ring and the end cover. Through the close cooperation between these sealing elements, it achieves effective waterproof and anti-corrosion functions for the bearing interior, and has the advantages of significantly improving the sealing performance of the bearing in harsh marine environments and extending its service life.

[0016] (2) This utility model achieves smooth rotation and uniform load bearing through the rotatable connection between the inner ring roller and the inner wall of the outer ring, and the sliding connection between the first side groove and the second side groove and the ball. It has the advantages of improving the load capacity of the bearing, reducing friction and wear and enhancing the overall running stability.

[0017] (3) This utility model achieves rapid installation and reliable sealing of bearing components through the threaded connection of the screw holes and connecting holes on the outer ring and end cap with the countersunk screws, and the convex design of the countersunk sealing gasket. It has the advantages of simplifying the assembly process, reducing maintenance costs and ensuring leakage at the connection. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a longitudinal sectional view of the present invention;

[0020] Figure 3 Provided by this utility model Figure 2 Enlarged view of point A in the middle;

[0021] Reference numerals: 1. Outer ring; 2. End cap; 3. Baffle; 4. Water-retaining ring; 5. Inner ring; 6. Roller; 7. First side groove; 8. Second side groove; 9. Ball bearing; 10. Screw hole; 11. Connecting hole; 12. Countersunk screw; 13. Countersunk sealing gasket; 14. Sealing ring; 15. Sealing ring; 16. Sealing groove; 17. Rotary wheel groove; Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0023] like Figures 1 to 3 The illustrated type of waterproof swivel bearing with staggered baffles for ship rudders includes an outer ring 1 and an end cap 2, such as... Figure 2As shown, the outer ring 1 and end cap 2 are movably connected to the inner ring 5. The inner ring 5 has several rotating grooves 17, and rollers 6 are rotatably connected to the inner walls of the rotating grooves 17. The rollers 6 are rotatably connected to the inner walls of the outer ring 1. Compared with the ball bearings commonly used in the prior art, the rollers have the advantages of large contact area, uniform load distribution, and greater load-bearing capacity. This roller structure mainly bears radial loads and achieves smooth rotation. The outer ring 1 and end cap 2 are respectively provided with corresponding screw holes 10. The end cap 2 is provided with connecting holes 11 that communicate with the screw holes 10. The screw holes 10 are connected to countersunk screws 12 by threads. The outer ring 1 and end cap 2 are connected by screw holes 10 and countersunk screws 12. This connection structure not only achieves reliable fixation of the components, but also ensures the sealing of the mating surfaces through the preload of the threaded connection.

[0024] like Figure 1 As shown, the outer ring 1 and the end cap 2 are respectively connected to baffles 3 on opposite sides. These baffles 3 form the first waterproof barrier, which effectively blocks the direct intrusion of external water flow and debris through staggered arrangement.

[0025] like Figure 3 As shown, the inner ring 5 has a first side groove 7 on its side wall, and the end cover 2 has a second side groove 8 on its inner side wall. The first side groove 7 and the second side groove 8 are slidably connected to a number of balls 9. These balls 9 form an axial bearing system, which is responsible for bearing the axial load and overturning moment generated by the ship's rudder system, and ensuring the smooth operation of the bearing under heavy load.

[0026] like Figure 3 As shown, a sealing groove 16 is provided at the connection between the outer ring 1 and the end cap 2. A sealing ring 15 is slidably connected to the inner wall of the sealing groove 16, and a sealing ring 14 is connected to the outer side of the sealing ring 15. This set of multiple sealing structures constitutes a waterproof system. Its function is to prevent seawater from penetrating into the critical parts inside the bearing through the tight fit of the elastic sealing element.

[0027] like Figure 3 As shown, a countersunk sealing gasket 13 is slidably connected to the inner wall of the connecting hole 11. The longitudinal section of the countersunk sealing gasket 13 is convex. This unique convex design will generate radial expansion when the countersunk screw 12 is tightened, effectively filling the gap and achieving secondary sealing at the screw connection.

[0028] like Figure 2 As shown, a water-blocking ring 4 is connected to the inner wall of the baffle 3. The water-blocking ring 4 extends into the internal gap of the bearing, forming another waterproof barrier. Even if a small amount of water breaks through the outer protection, it will be guided out by the water-blocking ring 4, further ensuring that the inside of the bearing is dry.

[0029] The specific implementation process is as follows:

[0030] First, the roller 6 is installed in the roller groove 17 of the inner ring 5 to form a complete rolling unit. Then, the assembled inner ring 5 is installed into the inner wall of the outer ring 1, so that the roller 6 and the inner wall of the outer ring 1 form a rotational fit. Then, the balls 9 are arranged on the first side groove 7 of the inner ring 5, so that the balls 9 simultaneously enter the second side groove 8 of the end cover 2 to form a complete axial bearing system. The end cover 2 is aligned with the outer ring 1 and closed, and a convex countersunk sealing gasket 13 is embedded in the connecting hole 11 of the end cover 2. Then, the sealing ring 15 and the sealing ring 14 are installed in the sealing groove 16 of the end cover 2 in sequence. After that, the countersunk screw 12 is screwed through the connecting hole 11 of the end cover 2 into the screw hole 10 of the outer ring 1 to fasten the two together and achieve effective sealing at the connection. Baffles 3 are installed on both sides of the outer ring 1 and the end cover 2, and a water-blocking ring 4 is fixed on the inner wall of the baffle 3 to complete the assembly of the entire bearing and form a multi-layer waterproof barrier composed of baffle 3, water-blocking ring 4, sealing ring 15 and sealing ring 14.

[0031] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A waterproof swivel bearing with a staggered baffle plate for ship rudders, characterized in that: It includes an outer ring (1) and an end cap (2). The outer ring (1) and the end cap (2) are movably connected to an inner ring (5). The inner ring (5) has several rotating grooves (17). Rollers (6) are rotatably connected to the inner wall of the rotating grooves (17). The rollers (6) are rotatably connected to the inner wall of the outer ring (1). The outer ring (1) and the end cap (2) are respectively provided with corresponding screw holes (10). The end cap (2) is provided with a connecting hole (11) that communicates with the screw holes (10). The screw holes (10) are connected to countersunk screws (12) by threads.

2. The waterproof swivel bearing with staggered baffle plate for ship rudders as described in claim 1, characterized in that: The outer ring (1) and the end cap (2) are respectively connected to baffles (3).

3. The waterproof swivel bearing with staggered baffle plate for ship rudders as described in claim 1, characterized in that: The inner ring (5) has a first side groove (7), and the end cap (2) has a second side groove (8). The first side groove (7) and the second side groove (8) are slidably connected to a ball (9).

4. A waterproof swivel bearing with a staggered baffle plate for ship rudders as described in claim 1, characterized in that: The outer ring (1) and the end cap (2) are respectively provided with sealing grooves (16), and a sealing ring (15) is slidably connected to the inner wall of the sealing groove (16).

5. A waterproof swivel bearing with a staggered baffle plate for a ship's rudder as described in claim 4, characterized in that: The sealing ring (15) is connected to the sealing ring (14).

6. A waterproof swivel bearing with a staggered baffle plate for ship rudders as described in claim 1, characterized in that: A countersunk sealing gasket (13) is slidably connected to the inner wall of the connecting hole (11).

7. A waterproof swivel bearing with a staggered baffle plate for a ship's rudder as described in claim 6, characterized in that: The countersunk sealing gasket (13) has a convex cross-section.

8. A waterproof swivel bearing with a staggered baffle plate for ship rudders as described in claim 1, characterized in that: A water-blocking ring (4) is connected to the inner wall of the baffle (3).

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