Unlock instant, AI-driven research and patent intelligence for your innovation.

Rotation device

A technology of rotating device and bearing, applied in the direction of transmission device, transmission device parts, gear transmission device, etc., can solve the problem of insufficient lubrication of the sealing lip surface, and achieve the effect of improving lubricity and effective lubrication

Active Publication Date: 2015-09-30
SUMITOMO HEAVY IND LTD
View PDF8 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the rotating device with such a structure, since the oil seal is arranged on the axially outer side of the bearing (fitted between the high-speed shaft and the housing), there is a problem that the lubrication of the sealing lip surface of the oil seal is likely to become insufficient.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rotation device
  • Rotation device
  • Rotation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings.

[0018] figure 1 It is an overall cross-sectional view of an eccentric oscillating type reduction gear (rotation device) according to an example of an embodiment of the present invention, figure 2 yes figure 1 The enlarged cross-sectional view of the main part, image 3 is along figure 2 The cross-sectional view of the arrow III-III line.

[0019] The reduction gear (rotation device) 12 includes a housing 34 in which a lubricant is sealed, and an input shaft 18 penetrating through the housing 34 . The speed reduction device 12 according to the present embodiment is an eccentric oscillating speed reduction device comprising the following components: an internal gear 14; an external gear 16 which internally meshes with the internal gear 14 while oscillating; The eccentric body 28. The input shaft 18 of the reduction gear transmission 12 co...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The project of the invention is to obtain a rotation device which can further improve lubricity of oil seal. A reduction gear is the rotation device (12), comprising a housing (34) which is sealed with a lubricant, the housing being a cover housing (54), an input shaft (18), and oil seal (72). The oil seal is configured on the axial outer side which is closer to the input shaft than an input bearing (60). Axial movement of the input bearing is limited by a check ring (74). The check ring is embedded in a check ring groove (54A) on the inner side which is closer to the reduction gear than the position of the input bearing. The housing is provided with a lubricating channel (78) on the radial outer side of the input bearing. The lubricating channel communicates a space which is closer to the inner side of the reduction gear than the input bearing and the oil seal. The lubricating channel is provided with an inclined surface (78D) which is inclined relative to the input shaft. the tail end (78D2) of the inclined surface is closer to the oil seal side on the axial direction than the position of the check ring.

Description

[0001] This application claims priority based on Japanese Patent Application No. 2014-060986 filed on March 24, 2014. The entire contents of this Japanese application are incorporated herein by reference. technical field [0002] The invention relates to a rotating device. Background technique [0003] Patent Document 1 discloses a power transmission device (rotary device) including a housing in which a lubricant is sealed, and a high-speed shaft penetrating the housing. [0004] In this power transmission device, a bearing for supporting the high-speed shaft is arranged between the high-speed shaft and the housing. An oil seal for sealing lubricant in the housing is disposed between the high-speed shaft and the housing on the axially outer side of the bearing. [0005] Patent Document 1: Japanese Patent Laid-Open No. 2011-043243 (FIG. 8) [0006] However, in the rotating device with such a structure, since the oil seal is arranged on the axially outer side of the bearing...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/04F16H57/029F16J15/3204F16J15/324
CPCF16H57/029F16H57/0424F16H57/0472F16H1/32F16H57/0401
Inventor 阿部瞬为永淳
Owner SUMITOMO HEAVY IND LTD