Turntable bearing of industrial robot

Abstract

The utility model discloses an industrial robot turntable bearing which comprises a bearing outer ring, the bearing outer ring and a bearing inner ring are concentrically arranged, a non-horizontal square ring cavity is formed between the inner wall of the bearing outer ring and the outer wall of the bearing inner ring, and special-shaped rolling bodies which are arranged in a staggered mode are arranged in the square ring cavity. According to the utility model, the rollers are arranged in a staggered manner, so that the bearing capacity of the bearing is effectively improved, and the special-shaped rollers are larger in diameter and more stable.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and in particular to an industrial robot turntable bearing. Background Technology

[0002] Currently, most specialized bearings rely on imports, so there is an urgent need for bearing localization in China.

[0003] Industrial robot turntable bearings are thin-walled bearings with a square cross-section and uniform dimensions. High-precision robot turntable bearings need to meet the following performance requirements: 1. High precision requirements; 2. Low and uniform frictional torque: preventing unstable operation or jamming; 3. Significantly saves installation space: the inner and outer ring dimensions of the turntable bearing are minimized, especially the ultra-thin structure, which is close to the limit of small size. Utility Model Content

[0004] To address the aforementioned technical problems, an industrial robot turntable bearing is provided.

[0005] To achieve the above objectives, in a preferred embodiment of the present invention, the bearing includes an outer ring, which is concentrically arranged with the inner ring, and a non-horizontal square annular cavity is formed between the inner wall of the outer ring and the outer wall of the inner ring, and irregularly shaped rolling elements are arranged alternately within the square annular cavity.

[0006] In a preferred embodiment, the present invention may be further configured such that the bearing inner ring includes an inner ring assembly one and an inner ring assembly two, the inner ring assembly one and the inner ring assembly two being stacked and fastened by bolts.

[0007] In a preferred embodiment, the present invention may be further configured such that both the inner ring component one and the inner ring component two are provided with inclined surfaces, and the junction of the inclined surfaces is a 90-degree right angle.

[0008] In a preferred embodiment, the present invention may be further configured such that the rolling element includes rollers, with adjacent rollers arranged alternately and placed within corresponding non-horizontal square annular cavities.

[0009] In a preferred embodiment, the present invention may be further configured such that an isolator is provided between adjacent rollers, the isolator being semi-enclosed around the rollers, and the isolator being disposed on an isolator ring at the top of the rollers.

[0010] In a preferred embodiment, the present invention may be further configured such that the annular surface of the roller is set as a raised arc shape, and the inner wall of the inner ring assembly one, the inner ring assembly two, and the inner wall of the bearing outer ring and their contact surface are all set as concave surfaces.

[0011] In a preferred embodiment, the present invention may be further configured such that the roller ring surface, inner ring assembly one, inner ring assembly two, and the inner wall of the bearing outer ring are all provided with an anti-wear coating at the contact points with the roller ring surface.

[0012] Beneficial effects: The industrial robot turntable bearing of this utility model adopts a staggered roller arrangement, which effectively improves the bearing's load-bearing capacity, and the irregularly shaped rollers have a larger diameter and are more stable. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is an exploded view of the present invention.

[0016] Figure 3 This is a schematic diagram of the arc-shaped surface of this utility model.

[0017] In the diagram, 1 represents the outer ring of the bearing; 2 represents inner ring assembly one; 3 represents the rolling element; 4 represents inner ring assembly two; and 5 represents the toroidal surface. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1-3 As shown, an industrial robot turntable bearing includes an outer ring 1, which is concentrically arranged with an inner ring. A non-horizontal square annular cavity is formed between the inner wall of the outer ring 1 and the outer wall of the inner ring. Irregularly shaped rolling elements 3 are arranged in an alternating manner within the square annular cavity.

[0020] The bearing inner ring includes inner ring assembly 2 and inner ring assembly 4, which are stacked and fastened by bolts.

[0021] Both the inner ring component 2 and the inner ring component 4 are provided with inclined surfaces, and the joint of the inclined surfaces is a 90-degree right angle.

[0022] The rolling element 3 includes rollers, with adjacent rollers arranged alternately and placed in corresponding non-horizontal square annular cavities.

[0023] An isolator is provided between adjacent rollers. The isolator is semi-enclosed around the roller and is located on the isolation ring at the top of the roller.

[0024] The annular surface 5 of the roller is configured as a raised arc shape, and the inner ring assembly 2, the inner ring assembly 4, and the inner wall of the outer ring 1 of the bearing and their contact surface are all configured as concave surfaces.

[0025] The roller ring surface, inner ring assembly 2, inner ring assembly 4, and the inner wall of the bearing outer ring 1 that contact the roller ring surface are all provided with an anti-wear coating.

[0026] It should be noted that in this article, relational terms such as first and second are used only to distinguish one entity from another, and do not necessarily require or imply any such actual relationship or order between these entities.

[0027] The above examples are merely illustrative of this utility model and do not constitute a limitation on the scope of protection of this utility model. All designs that are the same as or similar to this utility model are within the scope of protection of this utility model.

Claims

1. A turntable bearing for an industrial robot, characterized in that, The bearing includes an outer ring (1), which is concentrically arranged with the inner ring of the bearing. A non-horizontal square annular cavity is formed between the inner wall of the outer ring (1) and the outer wall of the inner ring. An irregularly shaped rolling element (3) is arranged in the square annular cavity. The inner ring of the bearing includes an inner ring assembly one (2) and an inner ring assembly two (4). The inner ring assembly one (2) and the inner ring assembly two (4) are stacked and fastened by bolts. Both the inner ring assembly one (2) and the inner ring assembly two (4) are provided with inclined surfaces. The intersection of the inclined surfaces is a 90-degree right angle. The rolling element (3) includes rollers. Adjacent rollers are arranged in an alternating manner and placed in the corresponding non-horizontal square annular cavity. The annular surface (5) of the roller is set as a raised arc shape. The inner ring assembly one (2) and the inner ring assembly two (4) as well as the inner wall of the outer ring (1) and their contact surface are all set as concave surfaces.

2. The industrial robot turntable bearing according to claim 1, characterized in that, An isolator is provided between adjacent rollers. The isolator is semi-enclosed around the roller and is located on the isolation ring at the top of the roller.

3. The industrial robot turntable bearing according to claim 1, characterized in that, The roller ring surface, inner ring assembly one (2) and inner ring assembly two (4) and the inner wall of the bearing outer ring (1) are all provided with anti-wear coatings at the contact points with the roller ring surface.

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