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Splined connection

a technology of splined connection and lubricating surface, which is applied in the direction of couplings, gearings, hoisting equipment, etc., can solve the problems of long period of good lubrication of the surface of the connection region, and achieve the effects of preventing lubricant leakage, preventing ingress of dirt and ambient particles, and preventing obliqueness and radial displacemen

Inactive Publication Date: 2005-08-04
SCANIA CV AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a splined connection that prevents lubricant leaks and ingress of dirt and particles while ensuring long-term good lubrication of the surfaces of the connection region. The connection includes two annular sealing elements that come into continuous abutment against the contact surfaces of the shaft and hub, and prevent any angling or radial displacement between the shaft and hub. The sealing elements are fitted in an annular space defined by the contact surfaces and sidewalls, and prevent lateral movements of the sealing elements even if there are axial movements between the shaft and hub. The splined connection can be used in a power takeoff of a vehicle, where it is difficult to supply lubricant after assembly, and the sealing elements retain lubricant and effectively prevent ingress of particles.

Problems solved by technology

Supplying lubricant to the connection region between hub and shaft and fitting said sealing elements result in a long period of good lubrication of the surfaces of the connection region.

Method used

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  • Splined connection
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Examples

Experimental program
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Embodiment Construction

[0016]FIG. 1 depicts a splined connection in an unassembled state. The splined connection comprises mainly two parts, namely a shaft 1 and a hub 2. The shaft 1 has at one end splining, which in a conventional manner comprises a multiplicity of longitudinal protruding ridges 3 and intermediate grooves 4 between the ridges. The ridges 3 and grooves 4 are usually arranged at uniform intervals round the circumference of the shaft 1. At an opposite end, the shaft 1 comprises a firmly attached gearwheel 5. In the case depicted, the shaft 1 is hollow. The splined connection comprises a hub 2 which has internally arranged splining. The splining of the hub is likewise provided in a conventional manner with a multiplicity of ridges 6 and intermediate grooves 7. The ridges 6 and grooves 7 of the hub are adapted to being fitted in engagement with the ridges 3 and grooves 4 of the shaft so as to provide a connection causing the shaft 1 and hub 2 to rotate together in the splined connection regio...

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Abstract

A splined connection comprises a shaft with longitudinal radially outwardly protruding ridges and intermediate grooves, a hub provided with correspondingly shaped ridges and intermediate grooves and is adapted to being fitted in engagement with the shaft ridges and grooves to provide between the shaft and the hub a connection region causing the shaft and hub to rotate together. A sealing arrangement adapted to close off the connection region. The sealing arrangement comprises two annular sealing elements applied at an axial distance from one another and adjacent to the connection region so that the sealing elements are each in continuous contact with a surface of the shaft around the whole of their inner radial surface and in continuous contact with a surface of the hub around the whole of their outer radial surface.

Description

BACKGROUND TO THE INVENTION, AND STATE OF THE ART [0001] The present invention relates to a splined connection and particularly to elements which orient the shaft and hub connected and also seal that connection. [0002] Splined connections are used in various applications in connection with torque transmission. Splined connections are particularly advantageous in cases where axial mobility between components is required. A splined connection usually comprises a shaft-shaped element provided with longitudinal protruding ridges and intermediate grooves, and a hub-shaped element provided with correspondingly shaped ridges and intermediate grooves and intended to be fitted in engagement with the ridges and grooves of the shaft so that a connection region causing the shaft and hub to rotate together is formed between them. [0003] An example of such an application is in connection with transmission of torque from an engine to a power takeoff of a vehicle. In such cases the power takeoff ma...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F16D1/10F16D1/06F16H57/02
CPCF16D1/101Y10T403/7026Y10T74/19893F16D2300/06
Inventor GARDIN, MICHAEL
Owner SCANIA CV AB
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