Novel fine adjustment bearing

Abstract

The utility model relates to the technical field of bearings, and discloses a novel fine adjustment bearing which comprises a shaft core and an outer sleeve arranged outside the shaft core, the outer walls of the two sides of the shaft core are fixedly connected with fixing rings respectively, the outer walls of the two fixing rings are provided with positioning grooves respectively, one side of the shaft core is fixedly connected with a hexagonal block, and the hexagonal block is fixedly connected with the outer sleeve. The hexagonal block can be fixed through the shaft core, connection and torque transmission are facilitated through the hexagonal block, the fixing ring on the shaft core can be rotationally clamped with the clamping ring arranged on the shaft base under the cooperation of the positioning groove, then the limiting effect is further achieved when the shaft core moves, accurate alignment between the outer sleeve and the shaft core can be guaranteed, and the service life of the shaft core is prolonged. And the positioning groove is matched with the corresponding structure of the outer sleeve, high-precision positioning of the fine adjustment bearing in the rotating process can be achieved, the fine adjustment bearing is suitable for application scenes with the high precision requirement, and the damage degree of the shaft core is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a new type of fine-tuning bearing. Background Technique

[0002] A chenille spinning machine, also called a corduroy machine, is a new type of spinning equipment for producing and processing chenille yarn. The products produced and processed by it are called chenille yarn or spiral yarn and broken silk yarn, which is a new variety of fancy yarn. Because its appearance resembles a rope, it is also called corduroy yarn. It is made by using two ply yarns as core yarns and spinning short pile yarns cut by blades between the two core yarns through twisting. The rotary seat of the chenille machine is an essential accessory on the chenille machine.

[0003] In the patent document with the authorized publication number of CN212584130U, a fine-tuning bearing for a chenille machine is disclosed, which includes a shaft, an outer sleeve, roller sheets, a first group of rollers and a second group of rollers. One end of the shaft is a hexagonal structure, and the other end of the shaft is provided with a tapered surface. The roller sheet is provided with a tapered hole, and the shapes of the tapered surface and the tapered hole match. The roller sheet and the shaft are connected through the tapered surface and the tapered hole. The outer surface of one end of the outer sleeve is provided with a thread, and the outer sleeve is sleeved on the outside of the shaft. Both ends of the outer sleeve are respectively connected to the shaft through sealing rings. The inner wall of the outer sleeve is provided with a first slideway and a second slideway, and the shaft is provided with a third slideway and a fourth slideway. The first group of rollers is installed in the first slideway and the third slideway, and the second group of rollers is installed in the second slideway and the fourth slideway. One end of the shaft is a hexagonal structure, and this hexagonal structure is convenient for connecting and transmitting torque, and the threaded part of the outer sleeve adopts an integral structure, which is more stable than the prior art.

[0004] During the installation process of the above device between the shaft and the bearing seat, when one end of the shaft is installed, the shaft may move axially during operation, which may cause damage to the shaft seat and the shaft during movement. Content of the Utility Model

[0005] The purpose of the utility model is to provide a new type of fine-tuning bearing, which solves the problem that during the installation process of the above device between the shaft and the bearing seat, when one end of the shaft is installed, the shaft may move axially during operation, which may cause damage to the shaft seat and the shaft during movement.

[0006] The embodiment of the present application provides a new type of fine-tuning bearing, which includes a shaft core and an outer sleeve arranged outside the shaft core. Fixed rings are respectively and fixedly connected to the outer walls on both sides of the shaft core, positioning grooves are respectively opened on the outer walls of the two fixed rings, and a hexagonal block is fixedly connected to one side of the shaft core.

[0007] By adopting the above technical solution, the hexagonal block can be fixed by the shaft core, and the hexagonal block is convenient for connecting and transmitting torque. The fixing ring on the shaft core can be rotationally clamped with the snap ring arranged on the shaft seat under the cooperation of the positioning groove, and further plays a role in limiting the movement of the shaft core, ensuring the precise alignment between the outer sleeve and the shaft core, reducing the instability caused by assembly errors. The cooperation between the positioning groove and the corresponding structure of the outer sleeve can achieve fine adjustment of the high-precision positioning of the bearing during rotation, which is applicable to application scenarios with high precision requirements and reduces the damage degree of the shaft core.

[0008] Optionally, two groups of movable grooves are respectively formed on the outer wall of the shaft core and the inner wall of the outer sleeve, and two groups of ball bearings are respectively connected to the outer wall of the shaft core and the inner part of the outer sleeve located inside the two groups of movable grooves in a rolling manner.

[0009] By adopting the above technical solution, the movable grooves arranged on the outer sleeve and the shaft core can play a role in limiting the rolling of the ball bearings.

[0010] Optionally, a cage is sleeved and installed on the outer walls of the two groups of ball bearings respectively.

[0011] By adopting the above technical solution, the cage can keep the distance between multiple ball bearings in each group and play a role in protecting the ball bearings during movement.

[0012] Optionally, a first sealing ring is installed on the outer wall of the shaft core close to the hexagonal block and the inner wall of the outer sleeve.

[0013] By adopting the above technical solution, the first sealing ring can play a role in initially sealing the shaft core and the outer sleeve.

[0014] Optionally, a second sealing ring is installed on the outer wall of the shaft core far from the hexagonal block and the inner wall of the outer sleeve.

[0015] By adopting the above technical solution, the second sealing ring can play a role in sealing the shaft core and the outer sleeve.

[0016] Optionally, the outer sleeve is in a convex shape, and a threaded groove is formed on the outer wall of the convex end of the outer sleeve.

[0017] By adopting the above technical solution, the stability can be enhanced through the setting of the threaded groove.

[0018] Optionally, a roller piece is installed on the outer wall of the shaft core far from the hexagonal block.

[0019] By adopting the above technical solution, the shaft core can play a role in fixing the roller piece.

[0020] Compared with the prior art, the beneficial effects of the technical solution of the present application are as follows:

[0021] The technical solution of this application can fix the hexagonal block through the shaft core. The hexagonal block is convenient for connecting and transmitting torque. The fixing ring on the shaft core can be rotationally clamped with the snap ring arranged on the shaft seat under the cooperation of the positioning groove, and then further limit the movement of the shaft core, ensuring the precise alignment between the outer sleeve and the shaft core, reducing the instability caused by assembly errors. The cooperation between the positioning groove and the corresponding structure of the outer sleeve can achieve fine adjustment of the high-precision positioning of the bearing during rotation, which is applicable to application scenarios with high precision requirements and reduces the damage degree of the shaft core. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] By reading the following detailed description of the non-limiting embodiments with reference to the accompanying drawings, other features, objects, and advantages of the present utility model will become more apparent:

[0023] Figure 1 is a front view schematic diagram of a new type of fine-tuning bearing of the present utility model;

[0024] Figure 2 is a partial cross-sectional view of the front view of a new type of fine-tuning bearing of the present utility model;

[0025] Figure 3 is a Figure 2 magnified view of part A in

[0026] Figure 4 is a Figure 2 magnified view of part B in a new type of fine-tuning bearing of the present utility model.

[0027] In the figure: 1, shaft core; 2, fixing ring; 3, positioning groove; 4, hexagonal block; 5, moving groove; 6, ball; 7, cage; 8, outer sleeve; 9, first sealing ring; 10, second sealing ring; 11, roller piece; 12, thread groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Please refer to Figures 1-4 , the present utility model provides a technical solution: a new type of fine-tuning bearing, including a shaft core 1 and an outer sleeve 8 arranged outside the shaft core 1. Fixing rings 2 are respectively fixedly connected to the outer walls on both sides of the shaft core 1. Positioning grooves 3 are respectively opened on the outer walls of the two fixing rings 2. A hexagonal block 4 is fixedly connected to one side of the shaft core 1. The outer sleeve 8 is convex. A thread groove 12 is opened on the outer wall of the convex end of the outer sleeve 8. A roller piece 11 is installed on the outer wall of the shaft core 1 away from the hexagonal block 4.

[0029] In the technical solution of the utility model, the hexagonal block 4 can be fixed by the shaft core 1, and the hexagonal block 4 is convenient for connection and torque transmission, and the fixing ring 2 on the shaft core 1 can be rotatably engaged with the clamping ring set on the shaft seat with the cooperation of the positioning groove 3, and then further play a limiting role when the shaft core 1 moves, which can ensure the precise alignment between the outer sleeve 8 and the shaft core 1 and reduce the instability caused by assembly errors. The positioning groove 3 cooperates with the corresponding structure of the outer sleeve 8 to achieve high-precision positioning of the fine-tuning bearing during the rotation process, which is suitable for application scenarios with high precision requirements and reduces the degree of damage to the shaft core 1.

[0030] In addition, the arrangement of the thread groove 12 can enhance stability, and the shaft core 1 can fix the roller piece 11 .

[0031] In the technical solution of the utility model, if Figures 2-4 As shown, two groups of movable grooves 5 are respectively provided on the outer wall of the shaft core 1 and the inner wall of the outer sleeve 8, and two groups of balls 6 are respectively connected in a rolling manner on the outer wall of the shaft core 1 and the inner wall of the outer sleeve 8 located inside the two groups of movable grooves 5, and the movable grooves 5 arranged on the outer sleeve 8 and the shaft core 1 can limit the rolling of the balls 6, and the outer walls of the two groups of balls 6 are respectively sleeved with retaining frames 7, and the retaining frames 7 can maintain the spacing between multiple balls 6 in each group and protect the balls 6 when they move, and the outer wall of the shaft core 1 located on the side of the shaft core 1 close to the hexagonal block 4 and the inner wall of the outer sleeve 8 are installed with a first sealing ring 9, and the shaft core 1 and the outer sleeve 8 can be initially sealed by the first sealing ring 9, and the outer wall of the shaft core 1 located on the side of the shaft core 1 away from the hexagonal block 4 and the inner wall of the outer sleeve 8 are installed with a second sealing ring 10, and the shaft core 1 and the outer sleeve 8 can be sealed by the second sealing ring 10.

[0032] When in use, firstly, the ball 6 can be set inside the retaining frame 7, and then it can be installed between the movable groove 5 between the shaft core 1 and the outer sleeve 8, and then the first sealing ring 9 and the second sealing ring 10 can be installed on both sides of the shaft core 1 and the outer sleeve 8 to maintain the sealing inside the outer sleeve 8, so that the hexagonal block 4 can be fixed through the shaft core 1, and the hexagonal block 4 is convenient for connection and torque transmission, and the fixing ring 2 on the shaft core 1 can be rotatably engaged with the clamping ring set on the shaft seat with the cooperation of the positioning groove 3, and then further play a role in limiting the movement of the shaft core 1, which can ensure the precise alignment between the outer sleeve 8 and the shaft core 1 and reduce the instability caused by assembly errors. The positioning groove 3 cooperates with the corresponding structure of the outer sleeve 8 to achieve high-precision positioning of the fine-tuning bearing during rotation, which is suitable for application scenarios with high precision requirements and reduces the degree of damage to the shaft core 1.

Claims

1. A new type of fine-tuning bearing, characterized in that: It includes a shaft core (1) and a jacket (8) arranged outside the shaft core (1). Fixed rings (2) are respectively fixedly connected to the outer walls on both sides of the shaft core (1). Positioning grooves (3) are respectively formed on the outer walls of the two fixed rings (2). A hexagonal block (4) is fixedly connected to one side of the shaft core (1).

2. The novel fine-tuning bearing according to claim 1, characterized in that, Two groups of movable grooves (5) are respectively formed on the outer wall of the shaft core (1) and the inner wall of the jacket (8). Two groups of ball bearings (6) are respectively in rolling connection with the outer wall of the shaft core (1) and the inner part of the jacket (8) located inside the two groups of movable grooves (5).

3. A novel fine-tuning bearing according to claim 2, characterized in that, Cage (7) is respectively sleeved and installed on the outer walls of the two groups of ball bearings (6).

4. A novel fine-tuning bearing according to claim 1, characterized in that, A first sealing ring (9) is installed between the outer wall of the shaft core (1) near the hexagonal block (4) and the inner wall of the jacket (8).

5. A novel fine-tuning bearing according to claim 4, characterized in that, A second sealing ring (10) is installed between the outer wall of the shaft core (1) far from the hexagonal block (4) and the inner wall of the jacket (8).

6. A novel fine-tuning bearing according to claim 1, characterized in that The jacket (8) is convex-shaped, and a threaded groove (12) is formed on the outer wall of the convex end of the jacket (8).

7. A novel fine-tuning bearing according to claim 1, characterized in that, A roller piece (11) is installed on the outer wall of the shaft core (1) far from the hexagonal block (4).

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