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Electric drive shaft installation structure

A technology of installation structure and electric drive shaft, which is applied to transmission parts, engine components, engine seals, etc., and can solve problems such as poor sealing performance and difficult installation of oil throwing rings

Active Publication Date: 2020-07-24
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there are problems in that the sealing performance is not good without the oil slinger; or, the installation of the oil slinger is difficult

Method used

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  • Electric drive shaft installation structure
  • Electric drive shaft installation structure
  • Electric drive shaft installation structure

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0039] image 3 A cross-sectional view showing a portion of a cartridge seal assembly according to a first embodiment of the present invention.

[0040] Such as image 3 As shown, the cartridge seal assembly of this embodiment includes a flinger / inner skeleton 3, a skeleton 4 and a plurality of lips. In a preferred example, the cartridge seal assembly further includes a spring 5 . image 3 Only a part (half) of the cross-section of each component along the axis of the shaft (second member, shaft member) surrounded by the seal assembly is shown, combined with figure 2 It can be seen that each part (flaker 3, skeleton 4, lips and spring 5) has an annular shape around the axis of the shaft the seal assembly will surround.

[0041] In the following description, mainly describe each component in image 3 The shape in the section in . The overall shape and configuration of the various components will of course occur to those skilled in the art.

[0042]The flinger 3 has an L-...

no. 2 approach

[0076] Figure 4 A cross-sectional view showing a part of a cartridge seal assembly according to a second embodiment of the present invention.

[0077] The same reference numerals are assigned to the same or similar components as those in the first embodiment, and detailed descriptions of the same or similar components are omitted.

[0078] refer to image 3 and Figure 4 It can be seen that the difference between the second embodiment and the first embodiment mainly lies in the installation direction of the frame 4 .

[0079] refer to Figure 4, in the second embodiment, the first side 41 of the skeleton 4 extends radially inward from one end of the second side 42 (the axially inner end, that is, the end of the second side 42 on the axially inner side of the gearbox). The second side 42 extends axially, that is, extends from the L-shaped corner of the frame 4 (the radially outer end of the first side 41 ) toward the axially outer side of the gearbox.

[0080] In other wo...

no. 3 approach

[0085] Figure 5 A cross-sectional view showing a portion of a cartridge seal assembly according to a third embodiment of the present invention.

[0086] The same reference numerals are assigned to the same or similar components as those in the second embodiment, and detailed descriptions of the same or similar components are omitted.

[0087] refer to Figure 4 and Figure 5 It can be seen that the difference between the third embodiment and the second embodiment is mainly that the first lip 1 and the second lip 2 are different from those in the second embodiment.

[0088] refer to Figure 5 , in the third embodiment, the first lip 1 and the second lip 2 are integrally formed on the oil flinger 3 , especially formed on the first side 31 of the oil flinger 3 .

[0089] The first lip 1 obliquely extends from the first side 31 of the flinger 3 toward the axially outer side and radially outer side of the gearbox, toward the second side 42 of the frame 4 , and contacts the sec...

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Abstract

The invention relates to a cassette seal assembly and an electric driving shaft installation structure. The cassette seal assembly is used for sealing an annular space between the inner surface of a first component and the outer surface of a second component. A framework, an oil thrower and a plurality of lips are both annular. The axial cross section of the framework is in an L shape, the first edge of the L shape extends in the radial direction, and the second edge of the L shape extends in the axial direction; the axial cross section of the oil thrower is in an L shape, the first edge of the L shape extends in the radial direction, and the second edge of the L shape axially extends towards the framework from the radial inner side end of the first edge of the oil thrower; and the multiple lips comprise the first lip, and the first lip extends towards the framework from the first edge of the oil thrower and makes sealing contact with the framework on the radial outer side of the radial outer end of the first edge of the oil thrower. According to the cassette seal assembly and the electric driving shaft installation structure comprising the same, the cassette seal assembly is compact in structure, easy to install and reliable in seal.

Description

technical field [0001] The present invention relates to a sealing technology for an eAxil (electric drive shaft), in particular to a compact cassette seal assembly (cassette seal) and an electric drive shaft installation structure. The seal assembly of the present invention can be easily mounted to the specific structure of the eAxil. Background technique [0002] As is known, a conventional cartridge seal assembly 100 for an eAxil of an electric vehicle has such figure 1 structure shown. The cartridge seal assembly 100 includes three parts, namely an inlay 101 , a rubber part 102 and an oil flinger / flinger 103 . Among them, the flinger 103 has a substantially L-shaped structure, and a rubber part 102 is formed on the frame 101, and the rubber part 102 includes a plurality of lips 104, 105, 106. A spring 107 presses the lip 106 against one side (the second side 109 ) of the L-shape of the flinger 103 . In this conventional cartridge seal assembly 100 , the L-shaped verti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/3208F16J15/3232F16J15/3252F16J15/3284F16H57/029
Inventor 刘鑫
Owner SCHAEFFLER TECH AG & CO KG