A Forging Forming Process of Straight Oil Groove on Spherical Surface of Differential Planetary Gear

A planetary gear and forming processing technology, which is applied in the field of gear forging, can solve the problems of low production efficiency and processing quality that cannot meet the requirements, and achieve the effects of improving product production efficiency, reducing production cost input, and increasing service life

CN105855451BActive Publication Date: 2017-12-12洛阳华冠齿轮股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-12-12

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Abstract

The invention relates to the technical field of gear forging, in particular to a forging forming and machining technology for straight oil grooves in spherical surfaces of differential mechanism planet gears. The forging forming and machining technology comprises the steps of three-dimension modeling, machining and treating of dies, rough machining of forge pieces and finish machining of the forge pieces. The technological process steps are scientifically designed, and the problems that the production efficiency is low in the machining process of the oil grooves added in the spherical surfaces of the planet gears and the machining quality cannot meet the drawing requirements can be solved. According to the forging forming and machining technology, the overall forging accuracy of the differential mechanism planet gears is guaranteed, the energy consumption is lowered, the service life of the planet gears is prolonged, the finish machining time is shortened, the product production efficiency is improved, the production materials are saved, and the production cost input of enterprises is reduced.
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Description

technical field

[0001] The invention relates to the technical field of gear forging, in particular to a forging forming process of a straight oil groove on a spherical surface of a differential planetary gear. Background technique

[0002] The differential planetary and half-shaft straight bevel gears are the key parts in the vehicle transmission system. Regardless of the vehicle's double-stage bridge or single-stage bridge, there are one or several sets of differential planetary, semi- Shaft straight bevel gears play a vital role in transmission systems. In order to ensure that the spur bevel gears of the differential are in good working condition during meshing rotation, the lubrication between the gear mounting surface and the differential housing is extremely important. Different axle manufacturers have adopted different methods, either It is to add an annular eccentric oil groove or three approximately equally divided radial oil grooves on the spherical surface of the ...

Examples

specific Embodiment 1

[0017] Specific embodiment 1: In order to solve the problem that the production efficiency of the straight oil groove added on the spherical surface of the planetary gear is low and the processing quality cannot meet the requirements in the processing process, the present invention provides a forging of the straight oil groove on the spherical surface of the differential planetary gear The forming process, the technical scheme of which is as follows: a forging forming process of straight oil grooves on the spherical surface of the differential planetary gear, comprising the following steps:

[0018] Step 1. Three-dimensional modeling. First, use SolidWorks three-dimensional software to perform three-dimensional modeling on the part drawing to generate a cold three-dimensional solid part. Then, in combination with forging conditions and machining conditions, reserve a machining allowance of 1-1.5mm on the spherical surface. , refer to the linear expansion coefficient of the forg...