Novel eight-point contact bearing

Abstract

The novel eight-point contact bearing comprises a front fixing plate and a rear fixing plate, a middle-layer fixing plate is arranged between the rear fixing plate and the front fixing plate, a plurality of mounting grooves are formed in the rear end of the front fixing plate, the front end of the rear fixing plate and the outer walls of the front side and the rear side of the middle-layer fixing plate, and the mounting grooves are communicated with the mounting grooves. The multiple mounting grooves in the front fixing plate, the multiple mounting grooves in the rear fixing plate and the multiple mounting grooves in the middle-layer fixing plate are communicated, balls are arranged in the multiple mounting grooves, and protective covers are arranged at the front end of the front fixing plate and the rear end of the rear fixing plate. The multiple balls are arranged between the front fixing plate and the middle fixing plate, the multiple balls are arranged between the rear fixing plate and the middle fixing plate, eight-point contact of the bearing is achieved, meanwhile, the two sets of balls are covered with the protective cover, dust and sundries can be prevented from blocking the balls to affect use of the bearing, the multiple limiting blocks are connected with the multiple limiting grooves in an inserted mode, and the service life of the bearing is prolonged. And the rubber clamping blocks are clamped with the clamping grooves, so that the protection cover is convenient to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a new type of eight-point contact bearing. Background Art

[0002] A bearing is a mechanical element used to support rotating or sliding parts, reducing friction and wear, thereby increasing mechanical efficiency. They are often used as support points for shafts and other rotating parts to ensure smooth movement and minimal energy loss. Bearings can be divided into several categories, including rolling bearings and plain bearings.

[0003] For example, the prior art publication number is CN206617440U, which is a new type of eight-point contact bearing. The utility model has two groups of balls respectively installed in the V-shaped grooves on both sides of the middle rotor of the bearing, and respectively cooperate with the V-shaped grooves of the upper fixing frame of the bearing and the lower fixing frame of the bearing. It has high rotational stability, and there is rolling friction between the balls and the V-shaped grooves, which can effectively reduce damping.

[0004] However, the above-mentioned prior art still has the following problems when in use: when the existing eight-point contact bearing is in use, foreign debris is easy to fall onto the balls in the bearing, which will affect the normal use of the bearing. Based on this, the utility model provides a new eight-point contact bearing with a sealing structure. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a new type of bearing with eight-point contact, in which a plurality of balls are arranged between the front fixing plate, the rear fixing plate and the middle fixing plate, so as to realize the eight-point contact of the bearing, and at the same time, a protective cover is used to cover the outside of the two groups of balls, so as to prevent dust and debris from clogging the balls and affecting the use of the bearing, and a plurality of limit blocks are plugged into a plurality of limit grooves, and a plurality of rubber clamping blocks are clamped into a plurality of clamping grooves, so as to facilitate the installation and removal of the protective cover, so as to solve the problems arising from the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of bearing with eight-point contact, comprising a front fixing plate and a rear fixing plate, a middle fixing plate is arranged between the rear fixing plate and the front fixing plate, a plurality of mounting grooves are arranged on the rear end of the front fixing plate, the front end of the rear fixing plate and the outer walls of the front and rear sides of the middle fixing plate, the plurality of mounting grooves on the front fixing plate, the rear fixing plate and the middle fixing plate are connected, and balls are arranged in the plurality of mounting grooves, the front end of the front fixing plate and the rear end of the rear fixing plate are provided with protective covers, the outer walls of the front end of the front fixing plate and the outer walls of the rear end of the rear fixing plate are provided with annular grooves, two protective covers are respectively inserted in the two annular grooves, a plurality of circular grooves are arranged on the outer walls of the two protective covers close to each other, and the plurality of circular grooves are distributed in an annular array on the protective covers.

[0007] In a preferred embodiment, a plurality of rubber blocks are fixedly provided on the outer walls of the two protective covers close to one side, and a plurality of slots adapted to the plurality of rubber blocks are provided at the front end of the front fixing plate and the rear end of the rear fixing plate. The plurality of rubber blocks are respectively arranged in the plurality of slots to improve the firmness of the protective covers with the front fixing plate and the rear fixing plate.

[0008] In a preferred embodiment, the front fixing plate and the middle fixing plate, and the rear fixing plate and the middle fixing plate are fixed by a plurality of threaded rods, so that the staff can easily separate the front fixing plate, the rear fixing plate and the middle fixing plate.

[0009] In a preferred embodiment, the plurality of threaded rods are respectively arranged in the plurality of circular grooves to prevent the threaded rods from obstructing the installation of the protective cover, and the plurality of rubber blocks are staggered with the plurality of threaded rods to prevent the threaded rods from obstructing the use of the rubber blocks.

[0010] In a preferred embodiment, the outer wall surfaces of the front fixing plate and the rear fixing plate are both provided with a plurality of limit grooves, and the inner walls of the two protective covers are both fixed with a plurality of limit blocks adapted to the plurality of limit grooves, and the plurality of limit blocks are respectively arranged in the plurality of limit grooves, so as to facilitate the staff to install the protective covers.

[0011] In a preferred embodiment, the outer walls of the two protective covers away from each other are provided with mounting holes, and the two mounting holes are connected to the front fixing plate, the rear fixing plate and the middle fixing plate for mounting the rotating shaft.

[0012] In a preferred embodiment, annular grooves are formed on the inner walls of the two mounting holes, and sealing rings are fixedly disposed in the two annular grooves. In actual use, the sealing rings can improve the sealing performance between the protective cover and the rotating shaft.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model realizes eight-point contact of the bearing by arranging a plurality of balls between the front fixing plate, the rear fixing plate and the middle fixing plate, and uses a protective cover to cover the outside of the two sets of balls, so as to prevent dust and debris from clogging the balls and affecting the use of the bearing. By plugging a plurality of limit blocks with a plurality of limit grooves, and clamping a plurality of rubber blocks with a plurality of clamping grooves, the connection firmness between the protective cover and the front fixing plate and the rear fixing plate can be improved, and the protective cover can be easily disassembled, and the installation and disassembly are very convenient.

[0015] 2. By arranging sealing rings on the inner walls of the mounting holes in the two protective covers, the sealing rings can improve the sealing between the protective covers and the rotating shaft, and facilitate the disassembly of the front fixing plate, the middle fixing plate and the rear fixing plate for inspection and replacement. At the same time, circular grooves are arranged on the two protective covers. When the protective covers are plugged into the front fixing plate and the rear fixing plate, multiple threaded rods are respectively arranged in the multiple circular grooves, thereby preventing the threaded rods from hindering the installation of the protective covers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the front fixing plate of the utility model;

[0018] Figure 3 This is a front view of the front fixing plate and the middle fixing plate of the utility model;

[0019] Figure 4 It is a schematic diagram of the protective cover of the utility model;

[0020] Figure 5 It is a rear view of the protective cover of the present utility model.

[0021] The accompanying drawings are marked as follows: 1. front fixing plate; 2. rear fixing plate; 3. middle fixing plate; 4. mounting groove; 5. ball bearing; 6. protective cover; 7. annular groove; 8. circular groove; 9. rubber clamp; 10. clamping groove; 11. threaded rod; 12. limit groove; 13. limit block; 14. mounting hole; 15. annular embedding groove; 16. sealing ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Refer to the instruction manual Figure 1-5 The utility model provides a new type of bearing with eight-point contact, including a front fixing plate 1 and a rear fixing plate 2, a middle fixing plate 3 is arranged between the rear fixing plate 2 and the front fixing plate 1, a plurality of mounting grooves 4 are opened on the rear end of the front fixing plate 1, the front end of the rear fixing plate 2 and the outer walls of the front and rear sides of the middle fixing plate 3, the plurality of mounting grooves 4 on the front fixing plate 1, the rear fixing plate 2 and the middle fixing plate 3 are connected, and a plurality of mounting grooves 4 are arranged in each of the plurality of mounting grooves 4;

[0024] The front end of the front fixing plate 1 and the rear end of the rear fixing plate 2 are both provided with a protective cover 6, and the outer wall of the front end of the front fixing plate 1 and the outer wall of the rear end of the rear fixing plate 2 are both provided with an annular groove 7, and the two protective covers 6 are respectively inserted into the two annular grooves 7, and the outer wall of the two protective covers 6 on the side close to each other is provided with a plurality of circular grooves 8, and the plurality of circular grooves 8 are distributed in an annular array on the protective covers 6;

[0025] A plurality of rubber blocks 9 are fixedly provided on the outer wall of the two protective covers 6 close to one side, and a plurality of card slots 10 adapted to the plurality of rubber blocks 9 are provided at the front end of the front fixing plate 1 and the rear end of the rear fixing plate 2. The plurality of rubber blocks 9 are respectively arranged in the plurality of card slots 10 to improve the firmness of the protective covers 6 and the front fixing plate 1 and the rear fixing plate 2;

[0026] In addition, a plurality of limiting grooves 12 are provided on the outer wall surfaces of the front fixing plate 1 and the rear fixing plate 2, and a plurality of limiting blocks 13 adapted to the plurality of limiting grooves 12 are fixedly provided on the inner walls of the two protective covers 6. The plurality of limiting blocks 13 are respectively arranged in the plurality of limiting grooves 12, so as to facilitate the staff to install the protective covers 6;

[0027] Moreover, mounting holes 14 are provided on the outer walls of the two protective covers 6 away from each other. The two mounting holes 14 are connected to the front fixing plate 1, the rear fixing plate 2 and the middle fixing plate 3 for connecting the bearing and the rotating shaft together for use.

[0028] When using the new bearing, a plurality of balls 5 are arranged between the front fixing plate 1, the rear fixing plate 2 and the middle fixing plate 3, so as to realize eight-point contact of the bearing, and a protective cover 6 is arranged on the front fixing plate 1 and the rear fixing plate 2, and the protective cover 6 covers the outer side of the front fixing plate 1 and the rear fixing plate 2, so as to play a sealing role on the outer side of the front fixing plate 1 and the rear fixing plate 2, so as to prevent dust and debris from clogging the balls 5 and affecting the use of the balls 5, and after the staff pulls out the protective cover 6, lubricating oil can be added between the balls 5 and the mounting groove 4 to play a lubricating role, and when reinstalling the protective cover 6, the staff aligns the plurality of limit blocks 13 on the protective cover 6 with the plurality of limit grooves 12 and inserts them, and the plurality of rubber clamping blocks 9 on the protective cover 6 are respectively inserted into the plurality of clamping grooves 10, so as to improve the connection firmness between the protective cover 6 and the front fixing plate 1 and the rear fixing plate 2.

[0029] Refer to the instruction manual Figure 1-5 The front fixing plate 1 and the middle fixing plate 3, and the rear fixing plate 2 and the middle fixing plate 3 are fixed by a plurality of threaded rods 11, which is convenient for the staff to separate the front fixing plate 1, the rear fixing plate 2 and the middle fixing plate 3. The plurality of threaded rods 11 are respectively arranged in the plurality of circular grooves 8 to prevent the threaded rods 11 from obstructing the installation of the protective cover 6. The plurality of rubber blocks 9 and the plurality of threaded rods 11 are staggeredly distributed to prevent the threaded rods 11 from obstructing the use of the rubber blocks 9.

[0030] Annular grooves 15 are formed on the inner walls of the two mounting holes 14 , and sealing rings 16 are fixedly disposed in the two annular grooves 15 . The sealing rings 16 can enhance the sealing performance between the rotating shaft and the mounting holes 14 .

[0031] Sealing rings 16 are provided on the inner walls of the mounting holes 14 in the two protective covers 6. The sealing rings 16 can improve the sealing between the protective covers 6 and the rotating shaft. By loosening the plurality of threaded rods 11, the front fixing plate 1, the middle fixing plate 3 and the rear fixing plate 2 can be disassembled, and the front fixing plate 1, the middle fixing plate 3 and the rear fixing plate 2 can be inspected and replaced. Circular grooves 8 are provided on the two protective covers 6. When the protective covers 6 are plugged into the front fixing plate 1 and the rear fixing plate 2, the plurality of threaded rods 11 are respectively arranged in the plurality of circular grooves 8, so that the threaded rods 11 can be prevented from obstructing the installation of the protective covers 6.

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A new type of eight-point contact bearing, comprising a front fixing plate (1) and a rear fixing plate (2), a middle fixing plate (3) being arranged between the rear fixing plate (2) and the front fixing plate (1), a plurality of mounting grooves (4) being arranged at the rear end of the front fixing plate (1), the front end of the rear fixing plate (2) and the outer walls of the front and rear sides of the middle fixing plate (3), the plurality of mounting grooves (4) on the front fixing plate (1), the rear fixing plate (2) and the middle fixing plate (3) being connected, and balls (5) being arranged in the plurality of mounting grooves (4), characterized in that: The front end of the front fixing plate (1) and the rear end of the rear fixing plate (2) are both provided with protective covers (6); The front end outer wall of the front fixing plate (1) and the rear end outer wall of the rear fixing plate (2) are both provided with an annular groove (7), the two protective covers (6) are respectively inserted into the two annular grooves (7), and the outer walls of the two protective covers (6) on the sides close to each other are both provided with a plurality of circular grooves (8), and the plurality of circular grooves (8) are distributed in an annular array on the protective covers (6).

2. The new eight-point contact bearing according to claim 1 is characterized in that: A plurality of rubber clamping blocks (9) are fixedly provided on the outer walls of the two protective covers (6) on the adjacent side; a plurality of clamping grooves (10) adapted to the plurality of rubber clamping blocks (9) are provided at the front end of the front fixing plate (1) and the rear end of the rear fixing plate (2); the plurality of rubber clamping blocks (9) are respectively arranged in the plurality of clamping grooves (10) to improve the firmness of the protective covers (6) and the front fixing plate (1) and the rear fixing plate (2).

3. The new eight-point contact bearing according to claim 2 is characterized in that: The front fixing plate (1) and the middle fixing plate (3), as well as the rear fixing plate (2) and the middle fixing plate (3), are fixed via a plurality of threaded rods (11), thereby facilitating the disassembly of the front fixing plate (1), the rear fixing plate (2) and the middle fixing plate (3).

4. The new eight-point contact bearing according to claim 3 is characterized in that: The plurality of threaded rods (11) are respectively arranged in the plurality of circular grooves (8) to prevent the threaded rods (11) from obstructing the installation of the protective cover (6); the plurality of rubber clamping blocks (9) and the plurality of threaded rods (11) are staggeredly distributed to prevent the threaded rods (11) from obstructing the use of the rubber clamping blocks (9).

5. The novel eight-point contact bearing according to claim 1 is characterized in that: The outer wall surfaces of the front fixing plate (1) and the rear fixing plate (2) are both provided with a plurality of limiting grooves (12); the inner walls of the two protective covers (6) are both fixedly provided with a plurality of limiting blocks (13) adapted to the plurality of limiting grooves (12); the plurality of limiting blocks (13) are respectively arranged in the plurality of limiting grooves (12), so as to facilitate the installation of the protective covers (6).

6. The novel eight-point contact bearing according to claim 1 is characterized in that: The outer walls of the two protective covers (6) on the side away from each other are both provided with mounting holes (14), and the two mounting holes (14) are both connected to the front fixing plate (1), the rear fixing plate (2) and the middle fixing plate (3).

7. The new eight-point contact bearing according to claim 6 is characterized in that: The inner walls of the two mounting holes (14) are both provided with an annular embedding groove (15), and sealing rings (16) are fixedly arranged in the two annular embedding grooves (15).

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