CN218761225U

CN218761225U - Large-scale differential mechanism planetary gear

Info

Publication number: CN218761225U
Application number: CN202222969753.6U
Authority: CN
Inventors: 李茂生; 张胜昔
Original assignee: Luoyang Lanming Heavy Industry Machinery Co ltd
Current assignee: Luoyang Lanming Heavy Industry Machinery Co ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2023-03-28
Anticipated expiration: 2032-11-08

Abstract

The utility model provides a large-scale differential mechanism planetary gear, include and install at the inboard gear body of differential mechanism, set up the bevel gear in the gear body outside through the planetary gear axle, the inboard of gear body is provided with spacing boss, and the inboard that the gear body is located spacing boss one side is provided with the inner wall with planetary gear bush looks adaptation, the side of gear body is provided with spherical face. This large-scale differential mechanism planetary gear can carry on spacingly to the suit at the inboard planetary gear bush of inner wall through set up spacing boss on the inner wall of gear body for planetary gear is at the pivoted in-process, planetary gear bush can not produce when the transition skew planetary gear is difficult for producing the deflection, guarantee that planetary gear can mesh with other gears are stable, and then under the prerequisite of guaranteeing that planetary gear bush can be even wearing and tearing, guarantee that planetary gear can be stable rotate.

Description

Large-scale differential mechanism planetary gear

Technical Field

The utility model relates to a differential mechanism planetary gear technical field specifically discloses a large-scale differential mechanism planetary gear.

Background

The inner diameter of the planetary gear is easy to wear after long-term use, so that gear meshing transmission is abnormal, a planetary gear bush is sleeved on the inner side of the planetary gear, the inner diameter is less worn, the bush is easy to move in the use process of the existing planetary gear partially installed on a differential mechanism, the local wear of the bush is serious, and the gear is deflected, meanwhile, the number of teeth of the planetary gear under the same reference circle diameter in the large differential mechanism is small, namely, the large-end modulus is large, so that the transmission of the planetary gear is small.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defect or not enough among the prior art, this application aims at providing a large-scale differential mechanism planetary gear, include and install at the inboard gear body of differential mechanism, the bevel gear of setting in the gear body outside through the planet gear axle, the inboard of gear body is provided with spacing boss, and the inboard that gear body is located spacing boss one side is provided with the inner wall with planet gear bush looks adaptation, the side of gear body is provided with spherical surface.

Preferably, the modulus of the large end of the planetary gear is 7, the tip angle of the bevel gear intersects with the axis of the limiting boss at a point b, the root angle and the branch angle of the bevel gear intersect with the axis of the limiting boss at a point a, and the extension line of the branch angle is perpendicular to the large end face.

Preferably, the spherical surface is formed in a transition mode between the included angle and the gear body.

Preferably, the inner diameter of the limiting boss is matched with the outer diameter of the planet gear shaft.

Has the advantages that:

1. this large-scale differential mechanism planetary gear can carry on spacingly to the suit at the inboard planetary gear bush of inner wall through set up spacing boss on the inner wall of gear body for planetary gear is at the pivoted in-process, planetary gear bush can not produce when the transition skew planetary gear is difficult for producing the deflection, guarantee that planetary gear can mesh with other gears are stable, and then under the prerequisite of guaranteeing that planetary gear bush can be even wearing and tearing, guarantee that planetary gear can be stable rotate.

2. According to the large differential planetary gear, the large-end modulus of the planetary gear is set to be equal, so that the number of teeth of the planetary gear is relatively more under the same reference circle diameter, and the transmission efficiency of the differential is improved simultaneously on the premise of improving the transmission ratio of the planetary gear.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic side view of the structure of the present invention;

fig. 3 is a sectional view of the structure of the present invention.

In the figure: 1. a gear body; 2. conical teeth; 3. a limiting boss; 4. an inner wall; 5. a spherical surface.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

The embodiment of the utility model provides an in the attached drawing: the different types of hatching in the figures are not given the national standards, do not require the material of the elements, and distinguish between cross-sectional views of the elements in the figures.

Referring to fig. 1-3, a large differential planetary gear includes a gear body 1 mounted on the inner side of a differential through a planetary gear shaft, and a bevel gear 2 disposed on the outer side of the gear body 1, the inner side of the gear body 1 is provided with a limit boss 3, the inner side of the gear body 1 on one side of the limit boss 3 is provided with an inner wall 4 adapted to a planetary gear bushing, the side surface of the gear body 1 is provided with a spherical surface 5, and the planetary gear can be limited by the spherical surface 5, thereby ensuring that the planetary gear can be stably meshed with other gears in the rotating process.

The large-end module of the planetary gear is 7, the number of the bevel teeth 2 is 13, the tip angle of the bevel teeth 2 intersects with the axis of the limiting boss 3 at a point b, the root angle and the branch angle of the bevel teeth 2 intersect with the axis of the limiting boss 3 at a point a, and the extension line of the branch angle is perpendicular to the large end face.

Wherein, spherical surface 5 carries out transition forming with 15 degrees contained angles and between the gear body 1, utilize spherical surface 5 can cooperate with differential's casing, make planetary gear can form the oil film through there being the clearance between spherical surface 5 and the casing at the pivoted in-process, and then reduce planetary gear's wearing and tearing, spherical surface 5 is far away relatively apart from the distance between the awl tooth 2 simultaneously, even spherical surface 5 produces certain wearing and tearing, also can guarantee that awl tooth 2 can not produce wearing and tearing with the differential casing between, with the transmission that carries on that planetary gear can be stable of taking and guaranteeing.

The inner diameter of the limiting boss 3 is matched with the outer diameter of the planetary gear shaft, the limiting boss 3 can limit the planetary gear bush and meanwhile facilitate the planetary gear bush communicated with the planetary gear to be sleeved on the planetary gear shaft together, and therefore the planetary gear bush is convenient to install.

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention herein disclosed is not limited to the particular combination of features disclosed herein, and that other combinations of features disclosed herein or their equivalents, in any combination, are also encompassed by the invention without departing from the spirit of the invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. The utility model provides a large-scale differential mechanism planetary gear, includes and installs at gear body (1) of differential mechanism inboard, sets up bevel gear (2) in gear body (1) outside through the planet gear axle, its characterized in that: the gear is characterized in that a limiting boss (3) is arranged on the inner side of the gear body (1), an inner wall (4) matched with the planetary gear bushing is arranged on the inner side, located on one side of the limiting boss (3), of the gear body (1), and a spherical surface (5) is arranged on the side surface of the gear body (1).

2. A large differential planetary gear according to claim 1, characterized in that: the module of the big end of the planetary gear is 7, the tip angle of the conical tooth (2) and the axis of the limiting boss (3) are intersected at a point b, the root angle and the partial angle of the conical tooth (2) and the axis of the limiting boss (3) are intersected at a point a, and the extension line of the partial angle is perpendicular to the big end face.

3. A large differential planetary gear according to claim 1, characterized in that: the spherical surface (5) is formed in a transition mode between the gear body (1) and the included angle of 15 degrees.

4. A large differential planetary gear according to claim 1, characterized in that: the inner diameter of the limiting boss (3) is matched with the outer diameter of the planet gear shaft.