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Multi-piece differential housings for spur gear differentials consisting of forged and sheet metal components

A differential case, cylindrical gear technology, applied in the direction of differential transmission, belt/chain/gear, transmission parts, etc., to achieve the effect of improving manufacturability

Inactive Publication Date: 2019-12-17
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, an increased bending moment usually occurs in this load-bearing section, thereby further increasing the load

Method used

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  • Multi-piece differential housings for spur gear differentials consisting of forged and sheet metal components

Examples

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Effect test

Embodiment Construction

[0023] exist figure 1 In particular, the differential case 18 according to the invention according to an advantageous embodiment / an advantageous embodiment is shown intuitively, said differential case being built / installed on the spur gear differential according to the invention 1 in the state. In this case, the spur gear differential 1 is provided for use in a motor vehicle and has a drive spur gear 21 on the input side. The drive spur gear 21 meshes with a gear of the transmission output shaft in the operating state of the spur gear differential 1 in which the spur gear differential 1 is installed in the drive train of the motor vehicle, said gear being in This is not shown for clarity. The output side of the spur gear differential 1 is formed by the two sun gears 3 and 4 of the spur gear differential 1 which are designed in principle in the manner of a planetary gear, wherein each sun gear 3 , 4 is connected to a wheel of the motor vehicle. The drive shaft / output shaft a...

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Abstract

The invention relates to a differential cage (18) for a spur gear differential (1), having two carrier sections (30, 31) which are connected rotationally conjointly to one another and which each have a bearing seat region (19, 20) and a planet gear bearing region (28, 29) fastened to the bearing seat region (19, 20), wherein the planet gear bearing regions (28, 29) are formed, and spaced apart relative to one another in an axial direction of the differential cage (18), in such a way that multiple bearing bolts (23) which serve for rotatably mounting in each case one planet gear (2) are arranged in an axial intermediate space (32) between the planet gear bearing regions (28, 29), wherein the bearing seat region (19, 20) of at least one carrier section (30, 31) is machined by forging and the planet gear bearing region (28, 29) of the same carrier section (30, 31) is produced from a cold-worked metal sheet (33, 34); and to a spur gear differential (1) for a motor vehicle having at least one such differential cage (18).

Description

technical field [0001] The invention relates to a differential housing for a spur gear differential (of a power train) of a motor vehicle, such as a passenger car, truck, bus or agricultural truck, said differential housing having two Carrier sections connected to each other in a rotationally fixed manner, each having a bearing seat area and a planet wheel bearing area fastened to the bearing seat area, wherein the planet wheel bearing areas are spaced apart from one another in the axial direction of the differential carrier Furthermore, it is designed such that a plurality of bearing bolts are arranged in the axial intermediate space between the bearing regions of the planet wheels, and each bearing bolt rotatably supports one planet wheel. Background technique [0002] It is known from the prior art in planetary gears to form the planetary gear carrier from various components / metallic parts. For example, DE 2 031 654 A1 discloses a torsionally rigid connection, in particu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H57/037F16H57/021
CPCF16H57/021F16H57/037F16H2057/02017F16H2057/02043F16H48/11F16H48/40F16H57/082F16H2048/106F16H2048/382
Inventor 金斗勇裴康恩
Owner SCHAEFFLER TECH AG & CO KG
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