CN219062358U

CN219062358U - Internal tooth gear

Info

Publication number: CN219062358U
Application number: CN202221707308.6U
Authority: CN
Inventors: 朱燕
Original assignee: Jinhua Incheon Gear Co ltd
Current assignee: Jinhua Incheon Gear Co ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2023-05-23
Anticipated expiration: 2032-07-04

Abstract

The utility model discloses an internal gear which comprises a gear ring and a fixed seat frame which are integrally structured, wherein a hole is formed in the center of the fixed seat frame to form a shaft hole, the surface of the middle section of a connecting rod of the fixed seat frame is concave downwards to form a fixed groove convenient for assembling a planetary gear, and an oil storage groove is formed in the hole in the connecting rod to lubricate a gear and a wheel shaft.

Description

Internal tooth gear

Technical Field

The utility model relates to the technical field of mechanical parts, in particular to an internal tooth gear.

Background

The planetary gear transmission mechanism formed by a sun gear, a planetary gear, a planet carrier, an internal gear and the like has the advantages of large transmission ratio, high strength, long service life and the like, and is widely applied to transmission structures such as a speed reducer, a gearbox, a drive axle, a crane and the like, but the planetary gear mechanism with a compact structure has the defects of complex assembly and difficult lubrication of the internal gear.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides an internal tooth gear which is convenient to assemble, high in strength and good in self-lubricating effect.

In order to achieve the above purpose, the utility model adopts the following technical scheme: including the internal gear body, the internal gear body comprises ring gear and fixed seat frame, ring gear and fixed seat frame are integrated into an organic whole structure, fixed seat frame center trompil forms the shaft hole, the connecting rod middle section surface of fixed seat frame is concave downwards, forms the fixed slot, the inside perforation of connecting rod forms the oil storage tank, the oil storage tank has two oil-out, and an oil-out is close to the tooth department of ring gear, and another oil-out is established at the shaft hole inner wall.

Further: the back of the fixed seat frame is provided with a reinforcing ring, and the surface of the reinforcing ring is arc-shaped.

The utility model has the beneficial effects that: the assembly of sun gear and planetary gear is convenient, and simultaneously, the self-lubricating effect is better, and the wheel axle and the teeth can be lubricated.

Drawings

FIG. 1 is a schematic illustration of the present utility model;

fig. 2 is a bottom view of the present utility model.

In the figure: the internal gear body 1, the gear ring 2, the fixed seat frame 3, the shaft hole 31, the strut 32, the fixed groove 33, the oil storage groove 34 and the reinforcing ring 4.

Detailed Description

The technical solutions of the present utility model will be further specifically described below by way of examples with reference to the accompanying drawings so that those skilled in the art can better understand the present utility model, but the examples are not limiting the present utility model:

as shown in fig. 1, in the figure, the internal gear body 1 is formed by a gear ring 2 and a fixed seat frame 3, the gear ring 2 and the fixed seat frame 3 are in an integral structure, a shaft hole 31 is formed by a central opening of the fixed seat frame 3, a wheel axle is convenient to install, a connecting rod 32 is formed by extending out of the center of the fixed seat frame 3, the surface of the middle section of the connecting rod 32 is slightly recessed downwards to form a fixed groove 33, the fixed groove 33 is used for positioning a planetary gear when the planetary gear is assembled, an oil storage groove 34 is formed by punching the inside of the connecting rod, the oil storage groove 34 is provided with two oil outlets, one oil outlet is close to the teeth of the gear ring 2 and used for lubricating the internal gear and the planetary gear, and the other oil outlet is formed in the inner wall of the shaft hole 31 and used for the wheel axle and lubrication, so that the lubricating effect is good, and the service life of the planetary gear set is prolonged.

As shown in fig. 2, the back of the fixed seat frame 3 is provided with a reinforcing ring 4 with an arc-shaped surface, and the reinforcing ring 4 can increase the strength of the fixed seat frame 3 and the strength of the internal gear.

The foregoing is only the embodiments of the present utility model, and therefore, the patent scope of the utility model is not limited thereto, and all equivalent structures made by the description of the utility model and the accompanying drawings are directly or indirectly applied to other related technical fields, which are all within the scope of the utility model.

Claims

1. An internal tooth gear, characterized in that: including internal gear body (1), internal gear body (1) comprises ring gear (2) and fixed seat frame (3), ring gear (2) and fixed seat frame (3) are integrated into one piece structure, fixed seat frame (3) center trompil forms shaft hole (31), connecting rod (32) middle section surface of fixed seat frame (3) is concave downwards, forms fixed tank (33), connecting rod (32) inside perforation forms oil storage tank (34).

2. An internal gear as set forth in claim 1, wherein: the oil storage tank (34) is provided with two oil outlets, one oil outlet is close to the tooth of the gear ring (2), and the other oil outlet is arranged on the inner wall of the shaft hole (31).

3. An internal gear as set forth in claim 1, wherein: the back of the fixed seat frame (3) is provided with a reinforcing ring (4), and the surface of the reinforcing ring (4) is arc-shaped.