Universal joint fork forging blank

A technology for forging blanks and universal joint yokes, which is applied in the field of universal joint yokes, can solve the problems of large weight and low strength of universal joints, and achieve the effects of reducing the difficulty of forging and machining, saving materials, and saving material costs

Inactive Publication Date: 2014-04-23
SHIYAN YIXING IND DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of high weight and low strength of the above-mentioned universal joint, the present invention provides a forging blank of universal joint yoke

Method used

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  • Universal joint fork forging blank
  • Universal joint fork forging blank
  • Universal joint fork forging blank

Examples

Experimental program
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Effect test

Embodiment Construction

[0011] like figure 2 , image 3 The forged blank of a universal joint yoke shown is composed of a shaft head part 1 and a fork lug part as a whole, and the fork lug part is composed of a flange plate 2 at the end of the shaft head part and fork lugs extending on both sides of the flange plate 3, the flange plate and the shaft head are hollow structures 5; a closed curved rib 6 is provided on the edge of the hollow structure 5, the height of the closed curved rib 6 is 3-6 mm, and the width of the closed curved rib 6 is 3 -6 mm.

[0012] like figure 2 As shown, the inner rail corresponding to the outer ends of the two fork lugs is provided with a "U"-shaped depression 7 that opens outwards, and the depth of the U-shaped depression is calculated with a machining allowance of 2-4 millimeters; like this, it can be Further reduce weight.

[0013] like Figure 4 As shown, according to the principle of engineering mechanics - the torsional shear stress distribution law of the s...

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PUM

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Abstract

The invention provides a universal joint fork forging blank. The shaft head portion and the fork lug portion form a whole, the fork lug portion is composed of flange plates at the end of the shaft head portion and fork lugs extending from two sides corresponding to the flange plates, and the flange plates and a shaft head are of hollow structures. The edges of the hollow structures are provided with closed curve reinforcing ribs, the height of the closed curve reinforcing ribs is 3-6mm, and the width of the closed curve reinforcing ribs is 3-6mm.The universal joint fork forging blank is characterized in that inner crosspieces corresponding to the outer ends of the fork lugs are provided with outward opening U-shaped recesses, the depth of the U-shaped recesses is calculated according to the remaining machining allowance 2-4mm. The self weight of the blank is greatly reduced, the blank is reinforced through the closed curve reinforcing ribs, and the strength is improved on the basis that materials are saved. In addition, two fork lugs of a universal joint fork are provided with U-shaped recess structures, so that the purposes of saving the materials and meanwhile reducing the forging and machining difficulty. Raw materials are saved by 1.2-2.5Kg for one universal joint fork, and the material cost is saved by 20%-25%.

Description

technical field [0001] The invention relates to a universal joint yoke, in particular to a universal joint yoke welded with a transmission shaft tube commonly used in machinery and automobile transmission systems. Background technique [0002] The universal joint is one of the key parts commonly used to transmit torque in machinery and automobile transmission systems. figure 1 As shown, the shaft head part 1 and the fork ear part form a whole. The fork ear part is composed of the flange plate 2 at the end of the shaft head part and the fork ears 3 extending on both sides of the flange plate. In order to enhance the strength, the The knuckle fork is provided with an intermediate boss 4 . The universal joint yoke has a complicated structure and shape; the strength of the parts is low; forging and machining are difficult; the weight is heavy and the cost is high, and it is difficult to meet the requirements of light weight, low cost and high benefit of today's automobiles. C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D3/16
Inventor 翁运忠曹立新黄永刚
Owner SHIYAN YIXING IND DEV
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