CN216200289U - Gear assembly - Google Patents

Abstract

The utility model provides a gear assembly, and belongs to the technical field of gears. It has solved the inconvenient and big problem of occupation space of current gear and bearing assembly. This gear assembly, including the gear main part, be provided with the fitting ring rather than coaxial setting and supply the gear main part installation in the gear main part, and fitting ring and gear main part slide mutually and laminate, be provided with the rotatory rotary unit of its rotation of being convenient for between fitting ring and the gear main part, all seted up the ring channel on the perisporium that fitting ring and gear main part laminated mutually, two the ring channel forms the installation cavity that supplies the rotary unit installation through the assembly of fitting ring and gear main part. The utility model has the advantages of reduced assembly space and convenient assembly.

Description

Gear assembly

Technical Field

The utility model belongs to the technical field of gears, and relates to a gear assembly.

Background

Gear refers to a mechanical element on a rim with gears continuously engaged to transmit motion and power. The gear is widely applied to a transmission mechanism and a speed reducing mechanism, the existing gear is generally assembled on a shaft to run synchronously with the shaft, a bearing is also assembled on the shaft to enable the running directions of the gear to be opposite, and because the internal space of part of the gear is limited, a shell or a box body needs to be enlarged when the gear and the shaft are assembled, the production cost is increased, and meanwhile, the assembly is relatively troublesome, so that the assembly efficiency is low.

Disclosure of Invention

The present invention addresses the above-identified problems in the prior art by providing a gear assembly that solves the above-identified problems.

The purpose of the utility model can be realized by the following technical scheme: the utility model provides a gear assembly, includes the gear main part, its characterized in that, the gear main part on be provided with rather than coaxial setting and supply the fitting ring of gear main part installation, and fitting ring and gear main part slide mutually and laminate, fitting ring and gear main part between be provided with the rotatory unit of its rotation of being convenient for, fitting ring and gear main part laminate's perisporium on all seted up the ring channel, two the ring channel forms the installation cavity that supplies the rotatory unit installation through the assembly of fitting ring and gear main part.

In foretell a gear assembly, an end face of fitting ring axially outwards extend and wear out outside the gear main part, the fitting ring lie in and be provided with the extension portion that radially inwards extends and be convenient for assemble on the external internal perisporium of gear main part, the extension portion on set up the screw hole that a plurality of interval set up, another terminal surface of fitting ring with lie in the gear main part, and leave the interval between the terminal surface with corresponding gear main part.

In foretell gear assembly, the fitting ring lie in and be provided with the spacing ring one of cover on the fitting ring on the outer periphery wall of gear main part, be provided with radial inward extension and embedding on the internal perisporium of this spacing ring one the intraannular embedding part of fitting, the outer tip of spacing ring one be the slope set up and with gear main part is inconsistent, gear main part lie in and be provided with the spacing ring two of cover on you internal perisporium and locate gear main part, the periphery wall of this spacing ring two also is provided with radial outward extension and strong person the embedding part in the gear main part, the inner tip of spacing ring two be the slope set up and with the fitting ring is inconsistent.

In the above gear assembly, the outer end faces of the first limit ring and the second limit ring are both provided with limit protrusions protruding outwards in the axial direction.

In the above gear assembly, the rotating unit is composed of a plurality of balls.

In the above gear assembly, the inner peripheral wall of the assembly ring at the installation cavity is provided with an installation hole which enables the installation cavity to be communicated with the outside and facilitates assembly of the balls, and a sealing cover which is connected with the installation hole and used for sealing the installation hole is arranged at an opening of the installation hole.

In the above gear assembly, the assembly ring is further provided with a plurality of oil holes which are distributed at intervals along the circumferential direction of the assembly ring and are convenient for injecting lubricating oil on the inner circumferential wall of the mounting cavity, and the diameter of each oil hole is smaller than that of each ball.

Compared with the prior art, the gear assembly has the following advantages:

1. the rotary unit convenient for rotation of the assembling ring is arranged between the assembling ring and the gear body, the annular grooves are formed in the peripheral wall, attached to the gear body, of the assembling ring, the annular grooves form an installation cavity for installation of the rotary unit through assembly of the assembling ring and the gear body, the bearing and the gear are designed into a whole through the arrangement of the structure, partial assembling space is saved, and meanwhile, the assembling, the disassembling and the replacing are convenient.

Drawings

Fig. 1 is a cross-sectional view of the present gear assembly.

Fig. 2 is a schematic longitudinal sectional view of the present gear assembly.

In the figure, 1, a gear body; 2. assembling a ring; 3. an annular groove; 4. a mounting cavity; 5. an extension part; 6. a threaded hole; 7. a first limiting ring; 8. an insertion section; 9. a second limiting ring; 10. a limiting bulge; 11. a ball bearing; 12. mounting holes; 13. a sealing cover; 14. and an oil filling hole.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the gear assembly comprises a gear body, wherein an assembly ring which is coaxially arranged with the gear body and used for installing the gear body is arranged on the gear body, the outer peripheral wall of the assembly ring is in sliding fit with the inner peripheral wall of the gear body, a rotating unit which is convenient for the rotation of the assembly ring is arranged between the assembly ring and the gear body, annular grooves are formed in the peripheral wall of the assembly ring which is in fit with the gear body, and the annular grooves are formed in an installation cavity which is used for installing the rotating unit through the assembly of the assembly ring and the gear body.

In a further elaboration, for the installation and the fixed of convenience assembly ring, an end face of assembly ring is to outside extending and extend and wear out outside the gear main body, the assembly ring is provided with the extension portion that radially inwards extends and be convenient for assemble on being located the internal perisporium outside the gear main body, sets up the screw hole that a plurality of interval set up in the extension portion, another terminal surface of assembly ring with be located the gear main body, and leave the interval between the terminal surface with corresponding gear main body.

In order to prevent the dislocation of the gear main body and the assembling ring, a first limit ring sleeved on the assembling ring is arranged on the outer peripheral wall of the assembling ring outside the gear main body, the inner peripheral wall of the first limit ring is provided with an embedding part which extends inwards in the radial direction and is embedded into the assembly ring, the outer end part of the first limit ring is obliquely arranged and is propped against the gear body, one end of the first limit ring, which is abutted against the gear body, is provided with a fillet, the inner peripheral wall of the gear body is provided with a second limit ring which is sleeved on the gear body, the outer peripheral wall of the second limit ring is also provided with an embedded part which extends outwards in the radial direction and is strong in the gear main body, the inner end part of the second limit ring is obliquely arranged and is abutted against the assembly ring, and one end of the first limiting ring and the other end of the second limiting ring, which are abutted against the assembly ring, are provided with rounded corners, and the outer end faces of the first limiting ring and the second limiting ring are provided with limiting bulges which are outwards protruded in the axial direction.

As a preferred structure, the rotating unit is composed of a plurality of balls.

In a detailed description, in order to facilitate assembly of the balls and prevent the balls from being separated, the assembly ring is arranged on the inner peripheral wall of the installation cavity and provided with an installation hole which enables the installation cavity to be communicated with the outside and facilitates assembly of the balls, a sealing cover which is connected with the installation hole and used for sealing the installation hole is arranged at the opening of the installation hole, and the sealing cover can be limited and fixed through a threaded connection or a pin shaft.

Further saying in detail, for the convenience of lubricating its inside, the assembly ring still has seted up a plurality of along its circumferencial direction interval distribution and be convenient for pour into the oil filler point of lubricating oil into on the internal perisporium that is located installation cavity department, and the diameter of this oil filler point is less than the ball diameter, and when needs oiling, dismantle the assembly ring, set up the oil filler point rather than being connected below at the opening part of oil filler point, pour into lubricating oil into it through the cooperation with the oil filler point.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims (7)

1. The utility model provides a gear assembly, includes gear main part (1), its characterized in that, gear main part (1) on be provided with rather than coaxial setting and supply fitting ring (2) of gear main part (1) installation, and fitting ring (2) and gear main part (1) laminating of sliding mutually, fitting ring (2) and gear main part (1) between be provided with the rotatory rotary unit of its rotation of being convenient for, fitting ring (2) and gear main part (1) the perisporium of laminating mutually on all seted up ring channel (3), two ring channel (3) form installation cavity (4) that supply the rotary unit to install through the assembly of fitting ring (2) and gear main part (1).

2. A gear assembly according to claim 1, wherein one end face of the assembling ring (2) extends axially outwards and extends out of the gear body (1), an extension part (5) which extends radially inwards and is convenient for assembly is arranged on the inner peripheral wall of the assembling ring (2) which is positioned outside the gear body (1), a plurality of threaded holes (6) which are arranged at intervals are arranged on the extension part (5), and the other end face of the assembling ring (2) is positioned in the gear body (1) and is spaced from the end face of the corresponding gear body (1).

3. The gear assembly according to claim 1, wherein a first limit ring (7) sleeved on the assembly ring (2) is arranged on the outer peripheral wall of the assembly ring (2) outside the gear body (1), an embedding part (8) which extends radially inwards and is embedded into the assembly ring (2) is arranged on the inner peripheral wall of the first limiting ring (7), the outer end part of the first limit ring (7) is obliquely arranged and is abutted against the gear body (1), the gear body (1) is provided with a second limit ring (9) which is arranged on the inner peripheral wall of the gear body (1) in a sleeved mode, the peripheral wall of the second limit ring (9) is also provided with an embedded part (8) which extends outwards in the radial direction and is strong in the gear body (1), the inner end part of the second limiting ring (9) is obliquely arranged and is abutted against the assembling ring (2).

4. A gear assembly according to claim 3, wherein the first and second limiting rings (7, 9) are provided with axially outwardly projecting limiting projections (10) on their outer end faces.

5. A gear assembly according to claim 1, wherein said rotating unit is composed of a plurality of balls (11).

6. A gear assembly according to claim 1, wherein the inner peripheral wall of the mounting ring (2) at the mounting cavity (4) is provided with a mounting hole (12) for communicating the mounting cavity (4) with the outside and facilitating the assembly of the balls (11), and a sealing cover (13) connected with the mounting hole (12) and used for sealing the mounting hole (12) is arranged at the opening of the mounting hole (12).

7. A gear assembly according to claim 1, wherein the inner peripheral wall of the mounting ring (2) at the mounting cavity (4) is further provided with a plurality of oil injection holes (14) which are distributed at intervals along the circumferential direction and are convenient for injecting lubricating oil, and the diameter of each oil injection hole (14) is smaller than that of each ball (11).

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