High-sealing-performance eccentric bearing applied to agricultural machinery

Abstract

The utility model discloses a high sealing eccentric bearing applied to agricultural machinery, which comprises an eccentric inner ring, an eccentric outer ring arranged outside the eccentric inner ring, a marble arranged between the eccentric inner ring and the eccentric outer ring, and a ram-type dust cover arranged between the eccentric inner ring and the eccentric outer ring, and the ram-type dust cover comprises a front layer and a rear layer. The eccentric bearing has the following advantages and effects that dust, grass clippings and the like which enter the marble can be reduced through the eccentric bearing, so that the service life of the eccentric bearing in use is effectively ensured in a complex environment, the period of replacing parts of an agricultural machine is shortened, and the working efficiency of the agricultural machine is ensured.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and in particular to a high-sealing eccentric bearing used in agricultural machinery. Background Technology

[0002] An eccentric bearing is a bearing in which the center of the inner bore and the center of the outer bore are not on the same circle. It is a very useful type of bearing. It mainly consists of an outer ring, an inner ring, a rolling element (carousel), and rolling elements. Eccentric bearings have a simple structure and are easy to use. They can achieve eccentric function without an eccentric shaft, which reduces the manufacturing cost of eccentric mechanisms.

[0003] For example, the utility model patent with application number CN202121754667.2 discloses an eccentric bearing for a vibrating screen, which has the advantages of effectively avoiding wear, slippage and fall-off of the eccentric block, reducing the risk of damage to the vibrating screen, and improving the reliability and operating efficiency of agricultural machinery.

[0004] Eccentric bearings used in agricultural machinery are subject to complex operating environments. Most of these bearings use rubber seals, which are easily corroded by grass clippings and other contaminants, leading to problems such as oil leaks and ball ejection or detachment, thus affecting their service life. Utility Model Content

[0005] The purpose of this invention is to provide an eccentric bearing with high sealing performance for use in agricultural machinery.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a high-sealing eccentric bearing applied to agricultural machinery, including an eccentric inner ring, an eccentric outer ring disposed outside the eccentric inner ring, a ball disposed between the eccentric inner ring and the eccentric outer ring, and a stamped dust cover disposed between the eccentric inner ring and the eccentric outer ring, the stamped dust cover comprising front and rear double layers.

[0007] The stamped dust cover is further configured as follows: the outer end of the extension is integrally provided with a hook portion, and the inner side of the extension is integrally provided with a rotating portion; the outer wall of the eccentric inner ring is provided with an inner groove, and the rotating portion is embedded in the inner groove; the inner wall of the eccentric outer ring is provided with an outer groove, and the hook portion is embedded in the outer groove.

[0008] The extension is further configured to include an outwardly curved structure.

[0009] In summary, this utility model has the following beneficial effects: the eccentric bearing can reduce the entry of dust, grass clippings, etc. into the ball bearing, thereby effectively ensuring its service life in complex environments, reducing the cycle of replacing parts in agricultural machinery, and ensuring the working efficiency of agricultural machinery. Attached Figure Description

[0010] Figure 1This is a schematic diagram of the lateral structure of a high-sealing eccentric bearing;

[0011] Figure 2 for Figure 1 A magnified view of the upper left part.

[0012] In the diagram: 1. Eccentric inner ring; 2. Eccentric outer ring; 3. Ball bearing; 4. Stamped dust cover; 5. Extension; 6. Hook; 7. Rotating part; 8. Inner groove; 9. Outer groove; 10. Turning structure. Detailed Implementation

[0013] The present invention will be further described in detail below with reference to the accompanying drawings.

[0014] like Figure 1 The high-sealing eccentric bearing shown, used in agricultural machinery, includes an eccentric inner ring 1 and an eccentric outer ring 2. A ball bearing 3 is positioned between the inner and outer rings. A platform with an inwardly protruding end is located at the center of the inner wall of the outer ring 2, and an arc groove is provided on this platform. An arc groove is also provided on the outer wall of the inner ring 1, and the ball bearing 3 is embedded between the two arc grooves. A cage is provided between the inner and outer rings 1 to maintain stability.

[0015] Among them, stamped dust covers 4 are provided on both the front and rear sides between the eccentric inner ring 1 and the eccentric outer ring 2.

[0016] The stamped dust cover 4 is eccentrically annular in shape, and its cross-section includes an extension 5. The extension 5 is a bend structure 10, with parallel ends and a middle section resembling a bend. Figure 2 The diagonal connection is shown. A hook portion 6 is provided at the outward end of the turning structure 10. A rotating portion 7 is integrally provided on the inner side of the inward end of the turning structure 10.

[0017] An inner groove 8 is provided on the outer side wall of the eccentric inner ring 1, and the rotating part 7 can be inserted into the inner groove 8. An outer groove 9 is provided on the inner side wall of the eccentric outer ring 2, and the hook part 6 can be inserted into the outer groove 9.

[0018] When in use, the stamped dust cover 4 is placed in the predetermined position and then stamped and installed, so that the rotating part 7 is embedded in the inner groove 8 and the hook part 6 is embedded in the outer groove 9. This achieves a high sealing effect for the eccentric bearing, while also facilitating the installation of the dust cover and effectively improving product production efficiency.

[0019] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A high-sealing eccentric bearing used in agricultural machinery, comprising an eccentric inner ring, an eccentric outer ring surrounding the eccentric inner ring, and a ball bearing disposed between the eccentric inner ring and the eccentric outer ring, characterized in that: A stamped dust cover is provided between the eccentric inner ring and the eccentric outer ring, and the stamped dust cover includes front and rear double layers.

2. The high-sealing eccentric bearing for agricultural machinery as described in claim 1, characterized in that: The stamped dust cover includes an extension, with a hook integrally provided at the outer end of the extension and a rotating part integrally provided on the inner side of the extension; the outer wall of the eccentric inner ring is provided with an inner groove, and the rotating part is embedded in the inner groove; the inner wall of the eccentric outer ring is provided with an outer groove, and the hook is embedded in the outer groove.

3. The high-sealing eccentric bearing for agricultural machinery as described in claim 2, characterized in that: The extension includes an outward bending structure.

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