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1. CN102853058 - Pulley device

Office
China
Application Number 201210224468.X
Application Date 29.06.2012
Publication Number 102853058
Publication Date 02.01.2013
Publication Kind A
IPC
F16H 55/48
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
55Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
32Friction members
36Pulleys
48manufactured exclusively or in part of non-metallic material, e.g. plastics
CPC
F16H 55/38
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
55Elements with teeth or friction surfaces for conveying motion; Worms; Pulleys; Sheaves
32Friction members
36Pulleys
38Means or measures for increasing adhesion
F16C 19/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
19Bearings with rolling contact, for exclusively rotary movement
02with bearing balls essentially of the same size in one or more circular rows
04for radial load mainly
06with a single row or balls
F16C 33/581
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
33Parts of bearings; Special methods for making bearings or parts thereof
30Parts of ball or roller bearings
58Raceways; Race rings
581integral with other parts, e.g. with housings or machine elements such as shafts or gear wheels
F16C 33/583
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
33Parts of bearings; Special methods for making bearings or parts thereof
30Parts of ball or roller bearings
58Raceways; Race rings
583Details of specific parts of races
F16C 33/586
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
33Parts of bearings; Special methods for making bearings or parts thereof
30Parts of ball or roller bearings
58Raceways; Race rings
583Details of specific parts of races
586outside the space between the races, e.g. end faces or bore of inner ring
F16C 35/067
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
35Rigid support of bearing units; Housings, e.g. caps, covers
04in the case of ball or roller bearings
06Mounting ; or dismounting; of ball or roller bearings; Fixing them onto shaft or in housing
067Fixing them in a housing
Applicants NSK Ltd.
Inventors Ichikawa Tomoya
Tahara Minoru
Agents lu lingong
Priority Data 2011-145210 30.06.2011 JP
2012-099430 25.04.2012 JP
Title
(EN) Pulley device
(ZH) 带轮装置
Abstract
(EN)
To achieve a structure that can reliably prevent the occurrence of creep between a pulley (2b) and an outer ring (7f). The intersection angle (Theta) of the inside surfaces (23) on the two sides of each recessed part (17a) of the knurled pattern (19a) of the outer ring (7f) is 45 DEG = (Theta) = 120 DEG and the recessed parts are formed in a trapezoidal shape. The depth (h) of the recessed parts (17a) in the radial direction and the diameter (D) of a circle circumscribing the tip surface (22) of the protruding parts (18a) satisfy the relationship 0.004D = (h) = 0.015D and the length (L) of the bottom surface (21) of the recessed parts (17a) in the circumferential direction is kept within the range of 0.01D = (L) = 0.03D.

(ZH)

本发明提供一种实现能可靠地防止在带轮(2b)与外圈(7f)之间产生打滑的构造的带轮装置。使外圈(7f)的滚花花纹(19a)的各凹部(17a)的两侧的内侧面(23)的交叉角度(θ)为45度≤θ≤120度,将凹部形成为梯形状。此外,凹部(17a)的径向深度(h)与凸部(18a)的顶端面(22)的外接圆的直径(D)满足0.004D≤h≤0.015D的关系,且将凹部(17a)的底面(21)的周向长度(L)限制为0.01D≤L≤0.03D的范围。