JPS6030819A - Crankshaft bearing device - Google Patents

Crankshaft bearing device

Info

Publication number
JPS6030819A
JPS6030819A JP58140711A JP14071183A JPS6030819A JP S6030819 A JPS6030819 A JP S6030819A JP 58140711 A JP58140711 A JP 58140711A JP 14071183 A JP14071183 A JP 14071183A JP S6030819 A JPS6030819 A JP S6030819A
Authority
JP
Japan
Prior art keywords
crankshaft
ball
radius
outer ring
crankcase
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP58140711A
Other languages
Japanese (ja)
Inventor
Akira Nagashima
彬 長島
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kioritz Corp
Kyoritsu Co Ltd
Original Assignee
Kioritz Corp
Kyoritsu Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kioritz Corp, Kyoritsu Co Ltd filed Critical Kioritz Corp
Priority to JP58140711A priority Critical patent/JPS6030819A/en
Priority to DE19843427764 priority patent/DE3427764A1/en
Priority to SE8403917A priority patent/SE458705B/en
Publication of JPS6030819A publication Critical patent/JPS6030819A/en
Priority to US06/797,199 priority patent/USH885H/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
    • F16C19/163—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls with angular contact
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
    • F16C9/02—Crankshaft bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/02—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for hand-held tools

Abstract

PURPOSE:To prevent a crankshaft from being deformed upon assembling, by dividing a crank casing in the direction of the crankshaft, into two sections, and as well by attaching an outer race to the crankcase while an inner race is press- fitted onto the crankshaft. CONSTITUTION:A crank casing is laterally divided in the directioon of a crankshaft onto which an inner race 3 is press-fitted, and is attached thereto with an outer race 4. A ball rolling groove 6 in the inner race 3 has such a curved surface that it has a radius R of curvature which is larger than the radius (r) of rolling balls 5, and has a gap of the dimension which allows the rolling balls 5 to pass from the right side to left side of the center normal vertical line of the ball 5. With this arrangement, it is possible to prevent the crankshaft from being deformed upon assembling.

Description

【発明の詳細な説明】 本発明Ｃ，，Ｌ　ｌ）ランク＋ｌｉ＋ｈの方向に二分割
されるクランクケースに用いられるクランク軸軸受装置
に関（）る０の（ある。DETAILED DESCRIPTION OF THE INVENTION The present invention C,, L l) 0 () related to a crankshaft bearing device used in a crankcase that is divided into two in the direction of rank +li + h.

従来一般に用いられているクランク軸軸受装置（ま内・
外輪及びボールを一体的に組み立てた酋通の玉軸受であ
り、クランクケースの軸受部にこの１”　、輻＋１Ｊ１
１．　１ｗ　＋’、ｉ−λ　口１　叶り　「　１−　暑
仏　１戸　ｈ　−逼　ゝ〕　７７”ノ　４１−７　）、
　メジ　湾４の組込まれた玉軸受の内輪に圧入していた
。Crankshaft bearing devices commonly used
This is a ball bearing with an outer ring and balls assembled integrally, and the bearing part of the crankcase has a diameter of 1" and a radius of +1J1.
1. 1w +', i-λ mouth 1 come true "1- hot Buddha 1 house h - 〼 ゝ〕 77"ノ 41-7),
It was press-fitted into the inner ring of the ball bearing installed in Meji Bay 4.

従って組立時に過大な応力がかかつてクランク軸が変形
し、クランク軸の回転を悲クシたわ、分解時に於いても
同様な問題が生じ、組立、分解作業をも困難にする原因
となっていた。Therefore, excessive stress was applied during assembly, deforming the crankshaft and preventing the crankshaft from rotating.A similar problem occurred during disassembly, making assembly and disassembly work difficult. .

本発明はかかる玉軸受をクランク軸軸受装置として用い
る場合に、生じる問題を解消ｔ！’　／ｕどづるもので
、クランクケースをクランク軸の方向に二分割し、外輪
と内輪とを別個に分解し、外輪をクランクケースに装着
し、内輪をクランク軸に圧入づることを特徴とし、クラ
ンク軸の組立を容易にづると共に組立時にクランク軸を
変形さＵるＪ：うな応力が生じない様にしたクランク軸
軸受装置を提供づることを目的と覆る。The present invention solves the problems that occur when such a ball bearing is used as a crankshaft bearing device. '/u Dozuru, which is characterized by dividing the crankcase into two in the direction of the crankshaft, disassembling the outer ring and inner ring separately, attaching the outer ring to the crankcase, and press-fitting the inner ring to the crankshaft. The purpose of this invention is to provide a crankshaft bearing device that facilitates assembly and prevents stress from deforming the crankshaft during assembly.

即ち、本発明の構成は、クランクｑＭ＋の方向に二分割
されるクランクケースの軸受部に装着されリテーナで保
持された転動ボールをイｊする外輪と、この外輪と別個
にクランク軸に圧入される内輪とを備え、この内輪のボ
ール転勤溝がその横断面形状を転勤ボールの半径より大
きな曲率半径てボ−ルの中心垂直線０）−＋ｌｌｌ　Ｊ
：り他側へ転動ボールが抜（）る稈１αの間隙を持つＣ
形成したことを特徴とづる。That is, the configuration of the present invention includes an outer ring that is attached to a bearing portion of a crankcase that is divided into two in the direction of the crank qM+ and that carries rolling balls that are held by a retainer, and an outer ring that is press-fitted onto the crankshaft separately from this outer ring. The ball transfer groove of the inner ring has a cross-sectional shape with a radius of curvature larger than the radius of the transfer ball, and the ball center vertical line 0)-+llll J
:C with a gap of 1α for the rolling ball to be pulled out to the other side
It is characterized by its formation.

以トに本発明のｔｉ４成を図面の実施例に従って説明り
る。The ti4 structure of the present invention will be explained below according to the embodiments shown in the drawings.

第１図は携帯用ブーエンソーを示し、クランク軸す＋ｌ
＋受装首か見えるようにその要部を［わｉ而して示して
いる。Figure 1 shows a portable engine saw, with the crankshaft +l
+The main parts are shown so that you can see the receiving head.

クランクケース１は第１図でクランク軸２の方向ヘノ１
石に二分割づるちのを示し、クランク軸２には内輪３か
＋Ｘ人されており、クランクケース１に（３１外輪４か
装省されている。図小しないが転動車−ル５はリテープ
により外輪４側に保１−．’４されている。The crankcase 1 is located in the direction of the crankshaft 2 in Figure 1.
The stone shows a two-part structure, and the crankshaft 2 has three or more inner rings, and the crankcase 1 has three outer rings (31 and 4).Although the figure is not small, the rolling wheel 5 has been reattached. It is maintained at 1-.'4 on the outer ring 4 side.

第２図は内輪３、転動ボール５及び外輪４の関１系を示
Ｊために拡大したものて、内輪３のボール転動ｉｆ”ｌ
　Ｇと転勤ボール５との負前状態でのＰ点での接触状態
（ユ第３図に示乃Ｊζうに従来市販の玉軸受ど同じＣ゛
ある。Fig. 2 is enlarged to show the relationship 1 system of the inner ring 3, rolling balls 5, and outer ring 4.
The contact state between G and the transfer ball 5 at point P in the negative state (as shown in FIG. 3) is C, which is the same as in conventional commercially available ball bearings.

外輪４の形状やボール転勤溝７は従）１！、のちのと変
らないので説明を省略りる。内輪３のホール転勤溝６は
第２図にその横１ｔ７ｉ　ｉｎ１形状を示されてＪコリ
、転動ボール５の半径１゛より大さな曲率半径ＲＣ小−
ルの中心垂直線Ｖの右側より左側へ転勤ホール５が抜け
る程１哀の間隙Δを持ってポールφム動’（＋’１′＋
　６の曲面が形成されている。The shape of the outer ring 4 and the ball transfer groove 7 are as follows: 1! , since it is the same as later, the explanation will be omitted. The hole transfer groove 6 of the inner ring 3 has a lateral 1t7i in1 shape shown in FIG.
Move the pole φ'(+'1'+
6 curved surfaces are formed.

即ち、ボールの中心垂直線Ｖより左側に間隙△の残る範
囲で距頗Ｉ℃たけホール転勤）ｖ４６の曲率半径尺の曲
面が延ひてｄ３す、それより左側には下の方に傾斜した
而８を有する。That is, to the left of the center vertical line V of the ball, a curved surface with a radius of curvature of d3 extends to the extent that the gap △ remains, and to the left of it, a curved surface with a radius of curvature of d3 extends downward. It has 8.

従って、第１図のように組立てる前に、左右のクランク
ケース１の軸受部に外輪４をはめ込み、クランク軸２に
傾１ｊ１シた而８を外側にしく内輪３を圧入しておき、
組立時にはクランクケース１の外輪４の中心にクランク
ｑ１１２の中心を一独さけて挿入づれば簡単に第１図の
ように組込むことかできる。Therefore, before assembling as shown in FIG. 1, the outer ring 4 is fitted into the bearings of the left and right crankcases 1, and the inner ring 3 is press-fitted onto the crankshaft 2 with the tilt 1j1 and 8 facing outward.
When assembling, the crank q112 can be easily assembled as shown in FIG. 1 by inserting the crank q112 into the center of the outer ring 4 of the crankcase 1, leaving the center of the crank q112 alone.

従ってクランク相違みの際にクランク軸が変形するよう
な過大な応力を加えることなく簡単に誰でもが組込むこ
とができ、組込むためにもＹ来必要とされた１、７殊’
、；Ｉ具も不要である。Therefore, anyone can easily install it without applying excessive stress that would deform the crankshaft when the crankshaft is different.
,;I tools are also not required.

１ス士の如く本発明の構成によれば、二分割されるクラ
ンクケースの軸受部には！１＋７；動ｉ１ζ−ルを保持
し１こ外輪を、クランク軸には内輪を大々別部品としＣ
組込むので、組立１１）に従来のＪ：　・）％加圧■稈
をすｕす゛、組立前に別部品である内輪及び外輪を別々
に予め絹込むノ〔す（゛あり、クランク軸やその他関連
部に不要なまたは過大な応力をかｆＪることイ〔り組立
てることがＣきる。According to the structure of the present invention, the bearing part of the crankcase which is divided into two parts! C
Since it is assembled, the conventional J: 11)% pressurization ■ Suspending the culm, the inner ring and outer ring, which are separate parts, are inserted separately in advance before assembly. It is possible to assemble without unnecessary or excessive stress on related parts.

ＩｒＹ一つＣ−クランクｉワｌ＋の組立が簡単（１イ［
実に１ｊわれるたＬｊ　（：　％　＜　、分解や補１１
Ｋ、貞検、部品交換二ｑが同（、丘に（ＩＣ１！■確実
に行われ、■Ａ′１、分Ｍ？　’、’ｒ’のＩＣめに特
別４「ノロ貝や技ｔ＋ｊを要しないのて、；：ｌｆ　Ｃ
’　ｂとこＣて６左１１Ｓ°ノ、分解がＣ′ごる。Easy to assemble IrY one C-crank iWa + (1 I[
Actually 1j is Lj (: % <, decomposition and complementation 11
K, the prosecutor, part replacement 2q is the same (, IC1! ■ Definitely done on the hill, ■ A'1, minute M?', 'r' IC special 4 'noro shellfish and technique t + j. You don't need it ;:lf C
'b and C 6 left 11S°, decomposition is C'.

【図面の簡単な説明】[Brief explanation of the drawing]

図面（Ｊ本発明の一実施例を承りしので、第１図（ま東
部を一部１ｆ７ｉ面した（ｊ℃帯川用土ンソーの背面図
、第２図は内輪、転勤ボール及び外輪の拡大［りｉ面図
、でし−Ｃ第３図（ま第２図のＰ点に於（］る負荷状態
で（ハ拐帥１１ζ「」ピ４・；ｉ−１汝Ｉである、１・
・・クランクケース、２・・・クランク軸、３・・・内
輪、４・・・外輪、５・・・転勤ボール、６・・・ホー
ル転勤溝、ｒ・・・転！ＩＪＪボールの半径、Ｒ・・・
ホール転勤溝の曲率半径、 ■・・・転勤ボールの中心垂直線、 β・・・ボール転勤潜り転勤ボールの中心垂直線からの
距離、 Δ・・・間隙。 代理人　浅　籾　１１；− 第２面 ゝＶ 第３図 （）Drawings (J) Since we have accepted an embodiment of the present invention, Fig. 1 is a rear view of a soil saw for Obikawa, and Fig. 2 is an enlarged view of the inner ring, transfer ball, and outer ring. i-plane view.
... Crankcase, 2... Crankshaft, 3... Inner ring, 4... Outer ring, 5... Transfer ball, 6... Hall transfer groove, r... Roll! Radius of IJJ ball, R...
Radius of curvature of the hole transfer groove, ■...Center vertical line of the transfer ball, β...Distance from the center vertical line of the ball transfer ball, Δ...Gap. Agent Asa Momi 11;- 2nd page ゜V Figure 3 ()

Claims (1)

【特許請求の範囲】[Claims] クランク軸の方向に二分割されるクランクケースの軸受
部に装着されリテーナで保持されＩこ転動ホール右する
外輪と、この外輪と別個にクランク軸に圧入される内輪
とを備え、この内輪のボール転動ｉＭがその横１９ｉ面
形状を転勤ボールの半径より人さな曲率′−に径でホー
ルの中心垂直線の一側より他側へ転動車−ルが抜ける程
ｊ印の間隙を持って形成したことを特徴とりるクランク
軸軸受装置ｊ’４　ＱIt is equipped with an outer ring attached to the bearing part of the crankcase that is divided into two in the direction of the crankshaft, held by a retainer, and located on the right side of the rolling hole, and an inner ring that is press-fitted onto the crankshaft separately from this outer ring. The rolling ball iM has a lateral 19i surface shape with a radius of curvature '- smaller than the radius of the transfer ball, and a gap marked j so that the rolling wheel can pass from one side of the vertical line to the other side of the center vertical line of the hole. Crankshaft bearing device j'4 Q
JP58140711A 1983-08-01 1983-08-01 Crankshaft bearing device Pending JPS6030819A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP58140711A JPS6030819A (en) 1983-08-01 1983-08-01 Crankshaft bearing device
DE19843427764 DE3427764A1 (en) 1983-08-01 1984-07-27 Bearing arrangement for a crankshaft
SE8403917A SE458705B (en) 1983-08-01 1984-07-31 STORAGE DEVICE CONTAINS A WEAVAX IN A TWO-SHARED WEB HOUSE
US06/797,199 USH885H (en) 1983-08-01 1985-11-14 Bearing device for a crankshaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58140711A JPS6030819A (en) 1983-08-01 1983-08-01 Crankshaft bearing device

Publications (1)

Publication Number Publication Date
JPS6030819A true JPS6030819A (en) 1985-02-16

Family

ID=15274939

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58140711A Pending JPS6030819A (en) 1983-08-01 1983-08-01 Crankshaft bearing device

Country Status (4)

Country Link
US (1) USH885H (en)
JP (1) JPS6030819A (en)
DE (1) DE3427764A1 (en)
SE (1) SE458705B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000065069A (en) * 1998-08-25 2000-03-03 Nippon Seiko Kk Ball bearing
DE10153018A1 (en) * 2001-10-26 2003-05-08 Ina Schaeffler Kg Crankshaft bearing system for IC engines consists of two outer opposite roller bearings and slide bearings between the outer ones to reduce friction

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1307493A (en) * 1919-06-24 hanson
US1023017A (en) * 1908-05-25 1912-04-09 Hess Bright Mfg Co Ball-bearing.
US2230989A (en) * 1938-09-13 1941-02-11 Marlin Rockwell Corp Bearing structure
SE315101B (en) * 1967-03-28 1969-09-22 Partner Ab
US3501207A (en) * 1968-04-10 1970-03-17 Phillips Petroleum Co Protection of bearings from impact damage
US3674357A (en) * 1971-03-30 1972-07-04 Federal Mogul Corp Clutch release bearing
US3809185A (en) * 1972-10-17 1974-05-07 Kioritz Corp Oil feed pump of chain saw
SU538165A1 (en) * 1975-04-16 1976-12-05 Всесоюзный Научно-Исследовательский Конструкторско-Технологический Институт Подшипниковой Промышленности Rolling bearing
DE2603685A1 (en) * 1976-01-31 1977-08-04 Kugelfischer G Schaefer & Co FIXING TWO ANGLE BEARINGS
JPS54163404A (en) * 1978-06-15 1979-12-26 Berber Viktor A Liquid transfer apparatus
JPS56139761A (en) * 1980-03-31 1981-10-31 Shimadzu Corp Sealing arm device for operation
JPS5714932A (en) * 1980-06-30 1982-01-26 Fujitsu Ltd Memory controlling system

Also Published As

Publication number Publication date
USH885H (en) 1991-02-05
SE458705B (en) 1989-04-24
SE8403917D0 (en) 1984-07-31
SE8403917L (en) 1985-02-02
DE3427764A1 (en) 1985-02-14
DE3427764C2 (en) 1987-10-29

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