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Gear wheel

A gear, toothed wheel technology, applied to gears. It can solve the problem of high cost of gear manufacturing, achieve the effects of small vibration, enhanced quality, and reduced risk of failure

Inactive Publication Date: 2012-08-15
SCANIA CV AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, gears with this structure are expensive to manufacture

Method used

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  • Gear wheel
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Examples

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Embodiment Construction

[0024] figure 1 A gear 10 is shown comprising a circular ring gear 11 provided with a toothed rim (or rim) 12 around its outer circumference. The teeth on the toothed rim 12 may be straight or helical and are dimensioned based on the expected loads that the gear 10 is intended to transmit. The axial length (width) of the ring gear 11 and thus also of the toothed rim 12 depends on the loads to be transmitted by the gear wheel 10 . The gear 10 also includes an intermediate wall 14 extending generally radially outward from a hub 15 located at the center of the gear. In this embodiment of the gear, the intermediate wall 14 is an integral part of the hub, but could also be a completely separate part intended to be fastened to the ring gear and hub during one of the manufacturing stages. The intermediate wall 14 connects the ring gear 11 and the hub 15 .

[0025] For the purpose of facilitating the manufacture of the gear 10, the inner part of the ring gear may be provided with a...

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PUM

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Abstract

The invention relates to a gear wheel (10; 20) comprising: a hub (15; 25) with respective first and second axial ends and intended to be arranged round an axis of rotation, at least one of which first and second axial ends of the hub has integral coupling devices (16; 26) intended to lock the gear wheel (10; 20) rotationally in relation to the gear wheel hub of an adjacent gear wheel; a circular gear ring (11; 21) with respective first and second axial ends and an outer periphery which is provided with a toothed rim (12; 22); and at least one intermediate wall (14; 24) which links the gear ring (11; 21) and the hub (15; 25) in such a way that the hub (15; 25) is fixed at substantially the centre of the gear ring (11; 21); which gear ring (11; 21) and hub (15, 25) are two separate parts joined together by an fastening connection (17; 27) to form a gear wheel (10; 20). The gear wheel according to the invention is characterised in that the axial ends of the hub (15; 25) end at or within the plane which is defined by the axial ends of the gear ring (1 1; 21) transversely in relation to the longitudinal shaft round which the gear wheel is intended to be arranged.

Description

technical field [0001] The invention relates to a gear according to the preamble of claim 1 . Background technique [0002] Gears are used in a large number of devices, for example in gearboxes to adapt speed and for power transmission from the main force to the final application. [0003] Gears of different sizes and configurations are used in gearboxes to allow for the desired variation in speed and power transmission. In a gearbox, gears are arranged around a longitudinal primary and secondary shaft. Each gear has a hub around an axis and at the center of a ring gear with teeth disposed on the outer peripheral surface of the ring gear. Gears arranged along the shaft are coupled via their hubs to adjacent gears against relative rotation about the shaft. However, this means that the hub has to be longer than the ring gear to ensure reliable engagement between adjacent hubs, which results in a gap between adjacent ring gears. The width of the ring gear is designed based ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H55/17B22F5/08F16H57/02
CPCF16H55/17F16H55/171Y10T74/19642Y10T74/19921B22F5/08F16H57/02F16H57/02004
Inventor C·瓦伦
Owner SCANIA CV AB