CN219198046U

CN219198046U - Inner gear ring

Info

Publication number: CN219198046U
Application number: CN202320060364.3U
Authority: CN
Inventors: 竺剑秋; 王方永; 尹祖国; 叶剑; 周龙灏
Original assignee: Zhejiang Cenfit Machinery Co ltd
Current assignee: Zhejiang Cenfit Machinery Co ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-06-16
Anticipated expiration: 2033-01-09

Abstract

The utility model discloses an inner gear ring, which comprises: a ring body; the ring body is provided with a central through hole; the ring body comprises a mounting part and a tooth part, and the central through hole penetrates through the mounting part and the tooth part; the installation department is used for installing the circle body, and tooth portion is used for matching planetary gear transmission. According to the utility model, the installation part and the tooth part are arranged, the central through hole penetrates through the installation part and the tooth part, the tooth part is used for matching with the planetary gear to drive, the installation part is used for fixing the tooth part in the gearbox, meanwhile, the installation part is matched with the central through hole and used for installing the driving piece, the driving piece drives the planetary gear to drive in the tooth part, the ring body consists of the installation part and the tooth part, the positioning installation of the inner gear ring is convenient, the installation precision of the inner gear ring is improved, and the service life of the gearbox is ensured.

Description

Inner gear ring

Technical Field

The utility model belongs to the technical field of gearbox parts, and particularly relates to an inner gear ring.

Background

The inner gear ring refers to an inner gear with the same axis as the planet carrier in planetary gear transmission. The transmission system is a key component for conveying a transmission function in the transmission system, and is composed of parts such as a flange half coupler with external teeth, an inner gear ring with the same tooth number and the like, and is mainly used for starting a motor transmission system.

The inner gear ring is applied to a gearbox of a mower, and most of the mowers are driven by engines because the mower is a mechanical tool for repairing lawns, so that the inner gear ring has high working efficiency in actual work, and the gearbox of the mower is a key part in the whole operation process and is a place easy to break down.

In the prior art, the annular gear is not easy to install, and the installation stability is low, the assembly precision is low and the service life of the gearbox is influenced because the installation seat is required to be matched for positioning and installing.

Disclosure of Invention

The utility model aims to solve the technical problems in the prior art, and provides an inner gear ring, wherein a mounting part and a tooth part are arranged, a central through hole penetrates through the mounting part and the tooth part, the tooth part is used for matching with a planetary gear to drive, the mounting part is used for fixing the tooth part in a gearbox, meanwhile, the mounting part is matched with the central through hole to be used for mounting a driving piece, the driving piece drives the planetary gear to drive in the tooth part, a ring body consists of the mounting part and the tooth part, so that the positioning and the mounting of the inner gear ring are facilitated, the mounting precision of the inner gear ring is improved, and the service life of the gearbox is ensured.

In order to solve the technical problems, the utility model adopts the following technical scheme:

an annular gear comprising: a ring body; the ring body is provided with a central through hole; the ring body comprises a mounting part and a tooth part, and the central through hole penetrates through the mounting part and the tooth part; the installation department is used for installing the circle body, and tooth portion is used for matching planetary gear transmission. According to the utility model, the installation part and the tooth part are arranged, the central through hole penetrates through the installation part and the tooth part, the tooth part is used for matching with the planetary gear to drive, the installation part is used for fixing the tooth part in the gearbox, meanwhile, the installation part is matched with the central through hole and used for installing the driving piece, the driving piece drives the planetary gear to drive in the tooth part, the ring body consists of the installation part and the tooth part, the positioning installation of the inner gear ring is convenient, the installation precision of the inner gear ring is improved, and the service life of the gearbox is ensured.

Further, the mounting portion and the tooth portion are integrally structured. The mounting part and the tooth part adopt an integrated structure, so that the overall structural strength of the ring body is increased, and meanwhile, the manufacturing and the forming of the annular gear are facilitated.

Further, convex teeth are arranged on the inner wall of the tooth part in a ring mode. The convex teeth are meshed with the planetary gears and are matched with the planetary gears for transmission.

Further, the cross section of the convex teeth is trapezoid. The cross section of the convex tooth adopts a trapezoid arrangement, so that the biting force between the convex tooth and the planet wheel is increased, the slipping phenomenon is avoided, and the transmission precision is improved.

Further, the mounting part is internally provided with a mounting piece, and the mounting piece is arranged on the inner wall of the ring body. The mounting piece is matched with the driving piece, and the driving piece is positioned and assembled through the mounting piece, so that the mounting precision of the driving piece is ensured, and the running stability of the gearbox is improved.

Further, the mounting comprises a limiting check ring and an annular limiting block, wherein the limiting check ring is arranged at one end, far away from the tooth part, of the annular limiting block, and the inner diameter of the annular limiting block is smaller than the diameter of the tooth top circle of the tooth part. The limiting check ring and the annular limiting block are fixed on the inner wall of the ring body, and the driving piece is positioned and installed through the matching of the limiting check ring and the annular limiting block.

Further, the internal diameter of spacing retaining ring is less than the internal diameter of annular stopper. The limiting check ring protrudes out of the mounting piece, and the limiting check ring is used for limiting the ring body in the gearbox.

Further, a mounting groove is formed between one end of the limiting retainer ring, which is far away from the tooth part, and the corresponding end part of the ring body. The setting of mounting groove is convenient for the location installation of circle body.

Further, one end of the limiting retainer ring, which is close to the tooth part, is provided with a guide surface. The arrangement of the guide surface plays a guiding role in the assembly of the driving piece, thereby facilitating the installation of the driving piece.

Further, the guide surface is an inclined surface. The guide surface is arranged to be an inclined surface, so that a gap is formed between the guide surface and the driving piece during installation, and abrasion caused by the installation of the driving piece is avoided.

Due to the adoption of the technical scheme, the utility model has the following beneficial effects:

according to the utility model, the installation part and the tooth part are arranged, the central through hole penetrates through the installation part and the tooth part, the tooth part is used for matching with the planetary gear to drive, the installation part is used for fixing the tooth part in the gearbox, meanwhile, the installation part is matched with the central through hole and used for installing the driving piece, the driving piece drives the planetary gear to drive in the tooth part, the ring body consists of the installation part and the tooth part, the positioning installation of the inner gear ring is convenient, the installation precision of the inner gear ring is improved, and the service life of the gearbox is ensured.

In the utility model, the mounting part is internally provided with the mounting part which is arranged on the inner wall of the ring body. The mounting piece is matched with the driving piece, and the driving piece is positioned and assembled through the mounting piece, so that the mounting precision of the driving piece is ensured, and the running stability of the gearbox is improved. The mounting comprises a limiting retainer ring and an annular limiting block, wherein the limiting retainer ring is arranged at one end, far away from the tooth part, of the annular limiting block, and the inner diameter of the annular limiting block is smaller than the diameter of the tooth top circle of the tooth part. The limiting check ring and the annular limiting block are fixed on the inner wall of the ring body, and the driving piece is positioned and installed through the matching of the limiting check ring and the annular limiting block.

Drawings

The utility model is further described below with reference to the accompanying drawings:

fig. 1 is a schematic structural view of an inner gear ring according to the present utility model;

FIG. 2 is a schematic view of the structure in the direction A in FIG. 1;

FIG. 3 is a schematic view of the structure in the direction B in FIG. 1;

FIG. 4 is a front view of the ring of the present utility model;

fig. 5 is a cross-sectional view of C-C of fig. 4.

In the figure, a 1-ring body; 2-a central through hole; 3-an installation part; 4-tooth; 5-convex teeth; 6-mounting; 7-limiting check rings; 8-an annular limiting block; 9-mounting grooves; 10-guiding surface.

Detailed Description

As shown in fig. 1 to 5, an inner gear ring according to the present utility model includes: a ring body 1; the ring body 1 is provided with a central through hole 2; the ring body 1 comprises a mounting part 3 and a tooth part 4, and the central through hole 2 penetrates through the mounting part 3 and the tooth part 4; the mounting part 3 is used for mounting the ring body 1, and the tooth part 4 is used for matching with planetary gear transmission.

The mounting portion 3 and the tooth portion 4 are integrally formed. The mounting part 3 and the tooth part 4 adopt an integrated structure, so that the overall structural strength of the ring body 1 is increased, and meanwhile, the manufacturing and the forming of the inner gear ring are facilitated. Convex teeth 5 are arranged on the inner wall of the tooth part 4 in a ring mode. The convex teeth 5 are meshed with the planetary gears and are matched with the planetary gears for transmission. The cross section of the convex teeth 5 is trapezoid. The trapezoidal section of the convex tooth 5 increases the biting force between the convex tooth 5 and the planet wheel, and the slipping phenomenon is avoided, so that the transmission precision is improved.

The mounting part 3 is internally provided with a mounting piece 6, and the mounting piece 6 is arranged on the inner wall of the ring body 1. The mounting piece 6 is matched with the driving piece, and the driving piece is positioned and assembled through the mounting piece 6, so that the mounting precision of the driving piece is ensured, and the running stability of the gearbox is improved. The mounting piece 6 comprises a limiting retainer ring 7 and an annular limiting block 8, wherein the limiting retainer ring 7 is arranged at one end, far away from the tooth part 4, of the annular limiting block 8, and the inner diameter of the annular limiting block 8 is smaller than the diameter of the tooth top circle of the tooth part 4. The limiting check ring 7 and the annular limiting block 8 are fixed on the inner wall of the ring body 1, and the driving piece is positioned and installed through the matching of the limiting check ring 7 and the annular limiting block 8. The inner diameter of the limiting retainer ring 7 is smaller than that of the annular limiting block 8. So that the limit retainer ring 7 protrudes from the mounting piece 6, and the setting of the limit retainer ring 7 is used for limiting the ring body 1 in the gearbox. And a mounting groove 9 is formed between one end of the limiting retainer ring 7, which is far away from the tooth part 4, and the corresponding end part of the ring body 1. The arrangement of the mounting groove 9 is convenient for positioning and mounting the ring body 1. The end of the limit retainer ring 7, which is close to the tooth part 4, is provided with a guide surface 10. The provision of the guide surface 10 provides a guiding effect on the assembly of the driving member, thereby facilitating the mounting of the driving member. The guide surface 10 is a bevel. The guide surface 10 is provided with an inclined surface so that a gap is formed between the guide surface 10 and the driving member when the driving member is mounted, thereby avoiding abrasion caused by the mounting of the driving member.

According to the utility model, the installation part 3 and the tooth part 4 are arranged, the central through hole 2 penetrates through the installation part 3 and the tooth part 4, the tooth part 4 is used for matching with a planetary gear for transmission, the installation part 3 is used for fixing the tooth part 4 in the gearbox, meanwhile, the installation part 3 is matched with the central through hole 2 for installing a driving piece, the driving piece drives the planetary gear to transmit at the tooth part 4, the ring body 1 consists of the installation part 3 and the tooth part 4, positioning installation of an inner gear ring is facilitated, the installation precision of the inner gear ring is improved, and the service life of the gearbox is ensured.

The above is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent substitutions or modifications and the like made on the basis of the present utility model to solve the substantially same technical problems and achieve the substantially same technical effects are included in the scope of the present utility model.

Claims

1. An annular gear comprising:

a ring body;

the ring body is provided with a central through hole;

the method is characterized in that:

the ring body comprises a mounting part and a tooth part, the central through hole penetrates through the mounting part and the tooth part, the mounting part is communicated with the tooth part through the central through hole, the mounting part is fixedly assembled with the tooth part, and the tooth part is used for matching planetary gear transmission.

2. The ring gear according to claim 1, wherein: the mounting portion and the tooth portion are of an integral structure.

3. The ring gear according to claim 1, wherein: convex teeth are arranged on the inner wall of the tooth part in a ring mode.

4. A ring gear according to claim 3, wherein: the cross section of the convex teeth is trapezoid.

5. The ring gear according to claim 1, wherein: the installation part is internally provided with an installation piece, and the installation piece is arranged on the inner wall of the ring body.

6. The ring gear according to claim 5, wherein: the mounting piece comprises a limiting check ring and an annular limiting block, wherein the limiting check ring is arranged at one end, far away from the tooth portion, of the annular limiting block, and the inner diameter of the annular limiting block is smaller than the diameter of the tooth top circle of the tooth portion.

7. The ring gear according to claim 6, wherein: and the inner diameter of the limiting retainer ring is smaller than that of the annular limiting block.

8. The ring gear according to claim 6, wherein: and a mounting groove is formed between one end of the limiting retainer ring, which is far away from the tooth part, and the corresponding end part of the ring body.

9. The ring gear according to claim 6, wherein: and one end of the limiting retainer ring, which is close to the tooth part, is provided with a guide surface.

10. The ring gear according to claim 9, wherein: the guide surface is an inclined surface.