High-precision rotary table bearing

Abstract

The utility model provides a high-precision rotary table bearing, which relates to the technical field of rotary table bearings, and comprises a main body mechanism, the main body mechanism comprises a shaft washer, the outer surface of the shaft washer is sleeved with a seat ring, the shaft washer is provided with a mounting groove, a first rotary column is arranged in the mounting groove, the first rotary column is in sliding connection with the shaft washer, and a second rotary column is arranged in the mounting groove. A cover ring is arranged on one side face of the first rotary column, and a gasket is arranged on one side face of the cover ring. According to the high-precision rotary table bearing, the main body mechanism is arranged, so that components of the high-precision rotary table bearing are more convenient to mount, particularly, the longitudinally mounted rotary column I can be matched with a seat ring for use, so that the friction resistance of the inner wall of the seat ring is smaller when the seat ring rotates, and meanwhile, the rotary column I can also be directly mounted in a mounting groove formed in a shaft ring; and when the bearing is integrally assembled, the condition that the rotary column I is separated from the groove in the inner wall of the shaft washer is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of turntable bearings, in particular to a high-precision turntable bearing. Background Art

[0002] A bearing is a mechanical component used to support and reduce friction during rotational or reciprocating motion. It primarily consists of an inner ring, an outer ring, rolling elements (such as balls or rollers), and a cage. It is widely used in various mechanical devices, such as automobiles, aircraft, generators, and machine tools. The primary function of a bearing is to support rotating shafts or other moving parts in a machine, enabling them to operate smoothly and efficiently while minimizing wear and energy loss.

[0003] The existing high-precision YRT turntable bearing includes a shaft ring, a seat ring, a washer, a retaining frame and rollers that reduce friction resistance. Usually, three groups of rollers are arranged, two of which are placed on the two sides of the seat ring, and the other group is placed on the inner wall of the seat ring. Since this group of rollers is installed in an annular groove opened on the shaft ring, the rollers lack a limit after installation and are extremely likely to fall off due to vibration. Then, the seat ring will affect the position of the rollers during installation, causing them to fall off the shaft ring, resulting in the high-precision YRT turntable bearing being not convenient to install. Therefore, the existing high-precision YRT turntable bearings are inconvenient to use. For this reason, we provide a high-precision turntable bearing. Utility Model Content

[0004] The purpose of the utility model is to solve the disadvantage of a group of longitudinally mounted rollers in a high-precision YRT turntable bearing in the prior art that they are easily separated during installation, and to provide a high-precision turntable bearing.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a high-precision turntable bearing, comprising: a main body mechanism, the main body mechanism including a shaft ring, the outer surface of the shaft ring is sleeved with a seat ring, the shaft ring is provided with a mounting groove, a rotating column 1 is provided in the mounting groove, the rotating column 1 is slidably connected to the shaft ring, a cover ring is provided on one side of the rotating column 1, and a washer is provided on one side of the cover ring.

[0006] As a preferred embodiment, the interior of the cover ring is sleeved with a first bolt, and the first bolt is slidably connected to the cover ring. The interior of the washer is sleeved with a second bolt, and the second bolt is slidably connected to the washer.

[0007] As a preferred embodiment, a retainer 1 is provided on a side of the seat ring close to the cover ring, and the retainer is sleeved on the outer surface of the cover ring.

[0008] As a preferred embodiment, a second rotating post is sleeved inside the first retainer, and the second rotating post is slidably connected to the first retainer.

[0009] As a preferred embodiment, a retainer 2 is provided on a side of the seat ring away from the cover ring, and the retainer 2 is sleeved on the outer surface of the shaft ring.

[0010] As a preferred embodiment, a rotating column three is sleeved inside the second retainer, and the rotating column three is slidably connected to the second retainer.

[0011] As a preferred embodiment, threaded holes that match bolt one and bolt two are formed on the shaft ring.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are:

[0013] The utility model provides a main body mechanism, which makes it easier to install the components of the high-precision turntable bearing, especially the longitudinally installed rotating column, which can be used in conjunction with the seat ring, so that the friction resistance of the inner wall of the seat ring is smaller when the seat ring rotates. At the same time, the rotating column can be directly installed into the installation groove provided on the shaft ring. Therefore, when the bearing is assembled as a whole, the rotating column will not be separated from the groove on the inner wall of the shaft ring, which ensures the smoothness of the installation of the high-precision turntable bearing. At the same time, a cover ring is provided, so that the rotating column can be pre-limited and will not be separated from the shaft ring even if other components are assembled. At the same time, the cover ring can also serve as an axis limiting component of the retaining frame, so that the retaining frame will not be offset after installation, so that the washer does not need to make fine adjustments to a certain component when the washer is fixed as a whole, which also ensures the stability of the use of the high-precision turntable bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional diagram of a high-precision turntable bearing provided by the utility model.

[0015] Figure 2 This is a schematic diagram of the disassembly of a high-precision turntable bearing provided by the utility model.

[0016] Figure 3 This is a schematic diagram of the disassembly of a high-precision turntable bearing provided by the utility model.

[0017] Figure 4 This is a schematic diagram of the disassembly of a high-precision turntable bearing provided by the utility model.

[0018] Legend:

[0019] 1. Main body; 11. Shaft ring; 12. Seat ring; 13. Mounting groove; 14. Rotating column 1;

[0020] 15. Cover ring; 16. Washer; 17. Bolt 1; 18. Bolt 2;

[0021] 19. Cage 1; 101. Rotary column 2; 102. Cage 2; 103. Rotary column 3;

[0022] 104. Threaded hole. DETAILED DESCRIPTION

[0023] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0024] Example 1

[0025] like Figures 1-4 As shown, the utility model provides a technical solution: a high-precision turntable bearing, comprising: a main body mechanism 1, the main body mechanism 1 includes a shaft ring 11, the outer surface of the shaft ring 11 is sleeved with a seat ring 12, the shaft ring 11 is provided with a mounting groove 13, a rotating column 14 is provided in the mounting groove 13, the rotating column 14 is slidably connected to the shaft ring 11, a side of the rotating column 14 is provided with a cover ring 15, one side of the cover ring 15 is provided with a washer 16, the inside of the cover ring 15 is sleeved with a bolt 17, the bolt 17 is slidably connected to the cover ring 15, the inside of the washer 16 is sleeved with a bolt 2, the bolt 2 18 is slidably connected to the washer 16, the seat ring 12 is provided with a retainer 19 on the side close to the cover ring 15, the retainer 19 is sleeved on the outer surface of the cover ring 15, and the retainer 19 is sleeved with a rotating column 2 101.

[0026] In this embodiment, by opening a mounting groove 13 on the shaft ring 11, multiple rotating columns 14 can be easily installed without detachment during assembly, and the efficiency of the bearing assembly can be improved. The mounting groove 13 is semi-open, so a part of the rotating column 14 is placed on the outside, so that it can contact the inner wall of the seat ring 12, thereby assisting the rotation of the seat ring 12. A retainer 19 and a rotating column 2 101 as well as a retainer 2 102 and a rotating column 3 103 are provided, and the rotating column 2 101 can rotate in the retainer 19, and the rotating column 3 103 can rotate in the retainer 2 102, and then the rotating column 2 101 and the rotating column 3 103 can contact the two side walls of the seat ring 12, so that the friction resistance of the side wall of the seat ring 12 is smaller.

[0027] Example 2

[0028] like Figures 1-4As shown, the second rotating column 101 is slidably connected to the retainer 19, and the retainer 2 102 is provided on the side of the seat ring 12 away from the cover ring 15. The retainer 2 102 is sleeved on the outer surface of the shaft ring 11, and the rotating column 3 103 is sleeved inside the retainer 2 102. The rotating column 3 103 is slidably connected to the retainer 2 102, and the shaft ring 11 is provided with a threaded hole 104 that fits with the bolt 17 and the bolt 2 18.

[0029] In this embodiment, a cover ring 15 is provided, and the rotating column 14 can be pre-limited with the cooperation of the bolt 17, so that the rotating column 14 can be stably placed inside the mounting groove 13. At the same time, the size of the cover ring 15 is suitable for the axial diameter of the shaft ring 11, and the cover ring 15 can serve as the shaft limiting component of the retaining frame 19, so that the retaining frame 19 and the rotating column 2 101 can be stably installed. In addition, a washer 16 and a bolt 2 18 are provided, and the bolt 2 18 can tightly connect the washer 16 with the shaft ring 11, so that the washer 16 can finally limit the retaining frame 19 and the rotating column 2 101.

[0030] Working principle:

[0031] like Figures 1-4 As shown, when the utility model is in use, it can be assembled first, the shaft ring 11 is placed on the assembly table, and the retaining frame 2 102 is first sleeved on the shaft ring 11, and then the rotating pillars 3 103 are placed one by one inside the retaining frame 2 102. At this time, the retaining frame 2 102 and the rotating pillars 3 103 are installed. Then the seat ring 12 is sleeved on the shaft ring 11, and one side of the seat ring 12 is in contact with the rotating pillar 3 103. At this time, the rotating pillars 14 are installed one by one into the installation grooves 13 opened on the shaft ring 11. After the rotating pillars 14 are installed, they will contact the inner wall of the seat ring 12. Then the cover ring 15 is covered on the top of the rotating pillar 14 and aligned with the shaft ring 11. At the same time, it is ensured that the bolt 17 can fit into the threaded hole 104 opened on the shaft ring 11 after entering the cover ring 15. Therefore, under the action of multiple bolts 17, the cover ring 15 can be in a tightly connected state with the shaft ring 11. At this time, the retaining frame 19 is sleeved on the outer surface of the cover ring 15, and the rotating column 2 101 is installed one by one into the interior of the retaining frame 19. Finally, the washer 16 is assembled, and the position of the washer 16 is appropriate. When the bolt 2 18 enters the washer 16, the bolt 2 18 can pass through the washer 16 and the cover ring 15 in turn, and finally be threadedly connected with the threaded hole 104. At this time, the entire main mechanism 1 is assembled and can be put into use.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A high-precision turntable bearing, characterized in that: include: The main body mechanism (1) includes a shaft ring (11), the outer surface of the shaft ring (11) is sleeved with a seat ring (12), the shaft ring (11) is provided with a mounting groove (13), a rotating column (14) is provided in the mounting groove (13), the rotating column (14) is slidably connected to the shaft ring (11), a cover ring (15) is provided on one side of the rotating column (14), and a washer (16) is provided on one side of the cover ring (15).

2. The high-precision turntable bearing according to claim 1, characterized in that: The cover ring (15) is internally sleeved with a bolt 1 (17), and the bolt 1 (17) is slidably connected to the cover ring (15). The washer (16) is internally sleeved with a bolt 2 (18), and the bolt 2 (18) is slidably connected to the washer (16).

3. The high-precision turntable bearing according to claim 1, characterized in that: A retainer (19) is provided on a side of the seat ring (12) close to the cover ring (15), and the retainer (19) is sleeved on the outer surface of the cover ring (15).

4. The high-precision turntable bearing according to claim 3, characterized in that: The retaining frame 1 (19) is internally sleeved with a rotating column 2 (101), and the rotating column 2 (101) is slidably connected to the retaining frame 1 (19).

5. The high-precision turntable bearing according to claim 1, characterized in that: A second retainer (102) is provided on a side of the seat ring (12) away from the cover ring (15), and the second retainer (102) is sleeved on the outer surface of the shaft ring (11).

6. The high-precision turntable bearing according to claim 5, characterized in that: The interior of the second retainer (102) is sleeved with a third rotating column (103), and the third rotating column (103) is slidably connected to the second retainer (102).

7. The high-precision turntable bearing according to claim 1, characterized in that: The shaft ring (11) is provided with a threaded hole (104) which fits with the first bolt (17) and the second bolt (18).

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