Bearing for numerical control rotary table
By designing the structure of the L-shaped inner ring and outer ring in the CNC rotary table bearing, combined with the design of the L-shaped card slot and sliding components, the problem of the inner ring and outer ring misalignment of the bearing under high axial load is solved, and higher axial load capacity and working stability are achieved.
Patent Information
- Application Number
- CN202421875441.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-08-05
AI Technical Summary
In the case of large axial loads in existing bearings, the inner and outer rings are prone to be misaligned, affecting the smooth rotation of the rotation shaft.
A structure for CNC rotary table bearing is designed, adopting an L-shaped inner ring and an outer ring. By setting an L-shaped card slot on the outer side wall of the L-shaped inner ring, first and second sliding components are installed, and a planar inner ring is used for clamping restrictions to enhance the axial load capacity of the outer ring.
It effectively increases the axial load capacity of the bearing, avoids misalignment of the inner and outer rings under high load conditions, and improves the working stability of the bearing.
Smart Images
Figure CN222863895U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearings, in particular to a bearing for a numerically controlled turntable. Background Art
[0002] The bearing is used to reduce the friction when the shaft rotates, making the shaft rotate more smoothly, and at the same time supporting and limiting the shaft. The bearing is divided into an inner ring and an outer ring, and the inner and outer rings are connected by balls or rollers. Although the connection is simple, it also leads to poor axial load capacity of the bearing. When the axial load of the bearing is large, it will cause the inner and outer rings to be misaligned, thus affecting the rotation of the shaft. Utility Model Content
[0003] The utility model aims to provide a bearing for a numerically controlled turntable to solve the problems raised in the above-mentioned background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bearing for a CNC turntable, comprising: an L-shaped inner ring, an outer ring is provided on the outer side wall of the L-shaped inner ring, a first sliding component and a second sliding component are respectively provided on both sides of the outer ring, the first sliding component is composed of a first retaining frame and a first axial cylindrical ball, the second sliding component is composed of a second axial cylindrical ball and a second retaining frame, the function and structure of the first sliding component are the same as those of the second sliding component, the first sliding component is used to reduce the axial friction of the outer ring, the first sliding component and the second sliding component restrict the two sides of the outer ring, thereby increasing the axial load capacity of the outer ring, a planar inner ring is provided on the left side of the L-shaped inner ring, and the planar inner ring abuts against the side end of the second sliding component.
[0005] Preferably, a slot is provided on the outer side wall of the L-shaped inner ring, the cross section of the slot is an L-shaped structure, and the first sliding component and the second sliding component are both located in the slot.
[0006] Preferably, a mounting groove is provided in the middle of the clamping groove, a radial cylindrical ball is installed in the middle of the mounting groove, and the side end of the radial cylindrical ball abuts against the inner wall of the outer ring.
[0007] Preferably, a mounting cavity is provided in the middle of the first retaining frame, the first axial cylindrical ball is mounted in the middle of the first retaining frame, the first axial cylindrical ball can rotate axially, and the side end of the first axial cylindrical ball abuts against the side wall of the outer ring.
[0008] Preferably, a threaded hole is provided in the middle of the L-shaped inner ring, a bolt member is provided in the middle of the planar inner ring, both ends of the bolt member pass through the planar inner ring, and the top of the bolt member is threadedly connected to the threaded hole.
[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: an L-shaped groove is arranged on the outer wall of the inner ring of the bearing, the first sliding assembly, the outer ring and the second sliding assembly are installed in the groove, and then a flat inner ring is used for clamping and restriction, so that the outer ring and the inner ring are limitedly connected, so that the L-shaped inner ring and the outer ring can withstand a larger axial load, and avoid misalignment between the two when encountering a larger axial load. When the two sides of the outer ring are restricted, the radial load capacity is also increased. Compared with other bearings of the same specification, the bearing structure can make the bearing work more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the three-dimensional structure of the bearing.
[0011] Figure 2 Schematic diagram of the internal connection of the bearing.
[0012] Figure 3 This is the front view of the bearing.
[0013] In the figure: 1 L-shaped inner ring, 2 first axial cylindrical ball, 3 first retaining frame, 4 second axial cylindrical ball, 5 second retaining frame, 6 flat inner ring, 7 radial cylindrical ball, 8 outer ring. DETAILED DESCRIPTION
[0014] In order to deepen the understanding and recognition of the utility model, the technical solutions in the embodiments of the utility model will be clearly and completely described and introduced in combination with the drawings 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, and are not intended to limit the embodiments in any form. Based on the embodiments of 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.
[0015] See also Figure 1-3 The utility model provides a technical solution: a bearing for a numerically controlled turntable, comprising: an L-shaped inner ring 1, an outer ring 8 is arranged on the outer side wall of the L-shaped inner ring 1, and a first sliding component and a second sliding component are respectively arranged on both sides of the outer ring 8, the first sliding component is composed of a first retaining frame 3 and a first axial cylindrical ball 2, and the second sliding component is composed of a second axial cylindrical ball 4 and a second retaining frame 5. The function and structure of the first sliding component are the same as those of the second sliding component. The first sliding component is used to reduce the axial friction force of the outer ring 8, and the first sliding component and the second sliding component restrict both sides of the outer ring 8, thereby increasing the axial load capacity of the outer ring 8, and a plane inner ring 6 is arranged on the left side of the L-shaped inner ring 1, and the plane inner ring 6 abuts against the side end of the second sliding component.
[0016] A slot is provided on the outer wall of the L-shaped inner ring 1, and the cross-section of the slot is an L-shaped structure. The first sliding component and the second sliding component are both located in the slot. The L-shaped inner ring 1 and the planar inner ring 6 can limit the axial direction of the first sliding component, the outer ring and the second sliding component, thereby greatly increasing the axial load capacity of the bearing.
[0017] A mounting groove is provided in the middle of the slot, and a radial cylindrical ball 7 is installed in the middle of the mounting groove. The side end of the radial cylindrical ball 7 abuts against the inner wall of the outer ring 8. The radial cylindrical ball 7 can reduce the radial friction of the outer ring. When the two sides of the outer ring 8 are restricted, the radial load capacity is also increased.
[0018] An installation cavity is provided in the middle of the first retaining frame 3, and the first axial cylindrical ball 2 is installed in the middle of the first retaining frame 3. The first axial cylindrical ball 2 can rotate axially, and the side end of the first axial cylindrical ball 2 rests on the side wall of the outer ring 8. The first axial cylindrical ball 2 and the second axial cylindrical ball 4 can reduce the lateral friction of the outer ring.
[0019] A threaded hole is provided in the middle of the L-shaped inner ring 1, and a bolt member is provided in the middle of the planar inner ring 6. Both ends of the bolt member pass through the planar inner ring 6, and the top of the bolt member is threadedly connected to the threaded hole. The planar inner ring 6 and the L-shaped inner ring 1 are fixedly connected by the bolt member. The two cooperate with each other to limit the outer ring 8, and at the same time facilitate the installation and disassembly of the outer ring 8.
[0020] Although the embodiments of the utility model have been shown and described, it should be emphasized that the above description is only an introduction and description of the use of the embodiments of the utility model, and does not limit the utility model in any form. For those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the attached claims and their equivalents.
Claims
1. A bearing for a CNC turntable, comprising: An L-shaped inner ring (1) is characterized in that an outer ring (8) is provided on the outer wall of the L-shaped inner ring (1), and a first sliding component and a second sliding component are respectively provided on both sides of the outer ring (8), the first sliding component is composed of a first retaining frame (3) and a first axial cylindrical ball (2), and the second sliding component is composed of a second axial cylindrical ball (4) and a second retaining frame (5), the function and structure of the first sliding component are the same as those of the second sliding component, the first sliding component is used to reduce the axial friction of the outer ring (8), the first sliding component and the second sliding component restrict both sides of the outer ring (8), thereby increasing the axial load capacity of the outer ring (8), and a planar inner ring (6) is provided on the left side of the L-shaped inner ring (1), and the planar inner ring (6) abuts against the side end of the second sliding component.
2. The bearing for a numerically controlled turntable according to claim 1, characterized in that: A slot is provided on the outer side wall of the L-shaped inner ring (1), the cross section of the slot is an L-shaped structure, and the first sliding component and the second sliding component are both located in the slot.
3. The bearing for a numerically controlled turntable according to claim 2, characterized in that: A mounting groove is provided in the middle of the clamping groove, a radial cylindrical ball (7) is installed in the middle of the mounting groove, and the side end of the radial cylindrical ball (7) abuts against the inner wall of the outer ring (8).
4. The bearing for a numerically controlled turntable according to claim 1, characterized in that: A mounting cavity is provided in the middle of the first retaining frame (3), and the first axial cylindrical ball (2) is mounted in the middle of the first retaining frame (3). The first axial cylindrical ball (2) can rotate axially, and the side end of the first axial cylindrical ball (2) abuts against the side wall of the outer ring (8).
5. The bearing for a numerically controlled turntable according to claim 1, characterized in that: A threaded hole is provided in the middle of the L-shaped inner ring (1), a bolt member is provided in the middle of the planar inner ring (6), both ends of the bolt member pass through the planar inner ring (6), and the top end of the bolt member is threadedly connected to the threaded hole.