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Vehicle universal joint outer star wheel, manufacturing process thereof and cold finishing mold

A universal joint and alien wheel technology, which is used in the manufacture of tools, wheels, vehicle parts, etc., can solve the problems of difficulty in meeting the quality requirements of auto parts, poor organization and poor compactness, and low material utilization. The effect of saving raw materials, cavity strength and impact resistance, and high internal tissue density

Pending Publication Date: 2018-12-21
江苏威鹰机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The metal flow line is cut off, the internal structure of the material is not loose and compact, the mechanical properties are poor, the production efficiency is low, the material utilization rate is low, the production cycle is long, the processing cost is high, and it is difficult to meet the quality requirements of auto parts.

Method used

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  • Vehicle universal joint outer star wheel, manufacturing process thereof and cold finishing mold
  • Vehicle universal joint outer star wheel, manufacturing process thereof and cold finishing mold
  • Vehicle universal joint outer star wheel, manufacturing process thereof and cold finishing mold

Examples

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Effect test

Embodiment

[0025] Example: see figure 1 with figure 2 As shown, a car universal joint outer planetary wheel includes a hollow cylindrical body 1, and the inner surface of the hollow cylindrical body 1 is evenly provided with six outwardly inclined ballways 2 in the circumferential direction, and the outwardly inclined ballways 2 are elliptical grooves The structure, the center line of the outer slope 2 and the axis of the outer planetary wheel form an acute angle α, two adjacent outward slopes 2 are symmetrically arranged, and the hollow cylindrical body 1 is forged from the overall structure.

[0026] see image 3 , Figure 4 , Figure 5 , Image 6 , Figure 7 , Figure 8 , Figure 9 with Figure 10 As shown, the manufacturing process includes the following steps: ① blanking, shot blasting: select the diameter of the bar, and cut the required length of the bar according to the size of the drawing; send the blank after making the blank into the shot blasting machine for sandblas...

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PUM

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Abstract

The invention discloses a vehicle universal joint outer star wheel. The vehicle universal joint outer star wheel comprises a hollow cylindrical body; outer inclined ball ways are arranged on the innersurface of the hollow cylindrical body, and are uniformly distributed on the inner surface of the hollow cylindrical body in the peripheral direction; two adjacent outer inclined ball ways are arranged in an axial symmetry mode; and the hollow cylindrical body is forged as an overall structure. A warm and cold combined forging method is adopted; the warm forging is firstly performed; and then, acold refining mold is used for cold forging to replace cutting, so that the production efficiency is high, the cost is low, the period is short, a metal production line is not cut off, the internal structure density is high, the inner cavity strength is high, the impact is resisted, raw materials are saved, and the vehicle part mating production requirements can be met.

Description

technical field [0001] The invention relates to an automobile universal joint, in particular to the production of an outer star wheel. Background technique [0002] In the automobile transmission system and other systems, in order to realize the power transmission between two rotating shafts whose axes do not coincide, a universal joint transmission must be used. The universal joint transmission generally consists of a universal joint and a transmission shaft, and sometimes includes an intermediate support. The universal joint is the "joint" part of the universal joint transmission in the automobile transmission system, which allows the connection between the connected parts The included angle varies within a certain range, and a certain range of relative telescopic movement is allowed between the connected parts. The State Intellectual Property Office discloses a retractable ball cage constant velocity universal joint (CN201410129701.5), which includes an outer star wheel ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D3/223B23P15/14B21J13/02B21K1/28
CPCF16D3/223B21J13/02B21K1/28B23P15/14
Inventor 张太良申剑刘永康
Owner 江苏威鹰机械有限公司
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