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1. CN108603581 - Worm wheel, worm decelerator, and method for producing worm wheel

Office China
Application Number 201780008891.7
Application Date 26.01.2017
Publication Number 108603581
Publication Date 28.09.2018
Publication Kind A
IPC
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
55
Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
02
Toothed members; Worms
22
for transmissions with crossing shafts, especially worms, worm-gears
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45
Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
14
incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45
Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17
Component parts, details or accessories; Auxiliary operations
26
Moulds
27
Sprue channels
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
1
Toothed gearings for conveying rotary motion
02
without gears having orbital motion
04
involving only two intermeshing members
12
with non-parallel axes
16
comprising worm and worm-wheel
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
55
Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
02
Toothed members; Worms
06
Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
F16H 55/22
B29C 45/14
B29C 45/27
F16H 1/16
F16H 55/06
CPC
B29C 45/2708
B29C 45/0046
B29C 45/14311
B29C 45/1459
B29C 2045/2714
B29L 2015/00
Applicants NSK LTD.
日本精工株式会社
Inventors KIYOTA HARUHIKO
清田晴彦
YAMAMOTO TAKESHI
山本武士
YASUDA KANAME
安田要
ARAI TOMOHIRO
新井智浩
TAKANO JUNICHI
高野纯一
HOTTA KAZUKI
发田和喜
Agents 北京奉思知识产权代理有限公司 11464
北京奉思知识产权代理有限公司 11464
Priority Data 2016-018234 02.02.2016 JP
2016-249615 22.12.2016 JP
Title
(EN) Worm wheel, worm decelerator, and method for producing worm wheel
(ZH) 蜗轮、蜗杆减速器和蜗轮的制造方法
Abstract
(EN)
In the present invention: a first concave/convex section (23) is provided to an outer diameter-side peripheral surface of a first annular concavity (22) provided to one axial direction side surface ofan inner wheel element (15a); and a second concave/convex section (49) is provided to a bottom surface of a second annular concavity (38) provided to another axial direction side surface of the innerwheel element (15a). An outer peripheral section of the inner wheel element (15a) is embedded in an outer wheel element (16a), the outer peripheral surface of the inner wheel element (15a) being a cylindrical surface section (24); also, some of a synthetic resin constituting the outer wheel element (16a) is brought into a plurality of concavities constituting the first concave/convex section (23)and second concave/convex section (49). Due to the configuration, a structure is implemented with which manufacturing errors in a worm wheel tooth section provided to the outer peripheral surface ofthe outer wheel are suppressed, while the retaining force of the outer wheel element, made of synthetic resin, on the inner wheel element, made of metal, is also ensured.

(ZH)
在内侧轮盘元件(15a)的轴向一侧面所设置的第一环状凹部(22)的外径侧周面设置有第一凹凸部(23),并且在内侧轮盘元件(15a)的轴向另一侧面所设置的第二环状凹部(38)的底面设置有第二凹凸部(49)。将内侧轮盘元件(15a)的外周面作为圆筒面部(24),将内侧轮盘元件(15a)的外周部包埋在外侧轮盘元件(16a),并且使构成外侧轮盘元件(16a)的合成树脂的一部分进入到构成第一凹凸部(23)和第二凹凸部(49)的多个凹部。由此,实现在确保合成树脂制的外侧轮盘元件相对于金属制的内侧轮盘元件的保持力的同时,抑制在外侧轮盘的外周面设置的蜗轮齿部的制造误差的构造。