JPH0284860U - - Google Patents
Info
- Publication number
- JPH0284860U JPH0284860U JP16325288U JP16325288U JPH0284860U JP H0284860 U JPH0284860 U JP H0284860U JP 16325288 U JP16325288 U JP 16325288U JP 16325288 U JP16325288 U JP 16325288U JP H0284860 U JPH0284860 U JP H0284860U
- Authority
- JP
- Japan
- Prior art keywords
- ring
- bearing device
- rolling elements
- slewing bearing
- outer ring
- 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.)
- Granted
Links
- 238000005096 rolling process Methods 0.000 claims description 6
- 230000008602 contraction Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Component Parts Of Construction Machinery (AREA)
- Jib Cranes (AREA)
Description
第１図は本考案の旋回軸受装置の好適実施例を
示す要部断面図、第２図ａは第１リング部材を示
す平面図、同図ｂは第２リング部材を示す平面図
、第３図は、転動体にローラを用いた場合の異な
る実施例を示す要部断面図、第４図ａ，ｂは、従
来の旋回軸受装置でたわみの状態を示す断面図、
第５図は油圧シヨベルに用いられる従来の旋回軸
受装置の平面図、第６図は同要部断面図、第７図
は油圧シヨベルに用いられる旋回軸受装置を示す
設明図である。
１……旋回軸受装置、２……内輪、２Ａ……内
歯、３……外周面、４……隙間、５……外輪、６
……内周面、７，８……転動面、９……ボール、
１１……第１リング部材、１２……第２リング部
材、１３……第１リング部材用の嵌込溝、１４…
…第２リング部材用の嵌込溝、１５……内輪側の
取付穴、１６……外輪側の取付穴、１７……一方
のシール部材、１８……他方のシール部材。
FIG. 1 is a cross-sectional view of essential parts showing a preferred embodiment of the swing bearing device of the present invention, FIG. 2a is a plan view showing the first ring member, FIG. 2b is a plan view showing the second ring member, and FIG. The figure is a sectional view of a main part showing different embodiments in which rollers are used as rolling elements, FIGS. 4a and 4b are sectional views showing the state of deflection in a conventional swing bearing device,
FIG. 5 is a plan view of a conventional swing bearing device used in a hydraulic excavator, FIG. 6 is a cross-sectional view of the same essential part, and FIG. 7 is an illustration showing the swing bearing device used in a hydraulic shovel. 1...Swivel bearing device, 2...Inner ring, 2A...Inner tooth, 3...Outer peripheral surface, 4...Gap, 5...Outer ring, 6
...Inner circumferential surface, 7, 8...Rolling surface, 9...Ball,
DESCRIPTION OF SYMBOLS 11... First ring member, 12... Second ring member, 13... Fitting groove for first ring member, 14...
... Fitting groove for the second ring member, 15... Mounting hole on the inner ring side, 16... Mounting hole on the outer ring side, 17... One seal member, 18... The other seal member.
Claims (1)
との間の環状の隙間に転動体を周方向に列状に介
設して旋回自在とした旋回軸受装置において、上
記環状の隙間に転動体の列を挾んで軸方向の両側
に一対のリング部材を嵌め込み、上記隙間を径方
向に塞ぐことを特徴とする旋回軸受装置。 (2) 転動体がボールからなることを特徴とする
請求項１記載の旋回軸受装置。 (3) リング部材が一端を分離して弾性力を有し
ており、一方のリング部材が縮小方向に付勢力を
有して内輪と係合し、他方のリング部材が拡大方
向に付勢力を有して外輪と係合していることを特
徴とする請求項１記載の旋回軸受装置。 (4) 転動体がローラからなることを特徴とする
請求項１記載の旋回軸受装置。[Scope of Claim for Utility Model Registration] (1) A turning system in which an outer ring is arranged concentrically with an inner ring, and rolling elements are arranged in a row in the circumferential direction in an annular gap between the inner ring and the outer ring, so that it can turn freely. A swing bearing device characterized in that a pair of ring members are fitted on both sides in the axial direction with a row of rolling elements sandwiched in the annular gap to close the gap in the radial direction. (2) The slewing bearing device according to claim 1, wherein the rolling elements are comprised of balls. (3) The ring members are separated at one end and have elastic force, and one ring member engages with the inner ring with a biasing force in the direction of contraction, and the other ring member applies a biasing force in the direction of expansion. 2. The slewing bearing device according to claim 1, wherein the slewing bearing device has an outer ring and engages with the outer ring. (4) The slewing bearing device according to claim 1, wherein the rolling elements are rollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988163252U JPH0649640Y2 (en) | 1988-12-16 | 1988-12-16 | Slewing bearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988163252U JPH0649640Y2 (en) | 1988-12-16 | 1988-12-16 | Slewing bearing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0284860U true JPH0284860U (en) | 1990-07-02 |
| JPH0649640Y2 JPH0649640Y2 (en) | 1994-12-14 |
Family
ID=31447815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988163252U Expired - Lifetime JPH0649640Y2 (en) | 1988-12-16 | 1988-12-16 | Slewing bearing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0649640Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4980756A (en) * | 1972-11-15 | 1974-08-03 | ||
| JPS57117U (en) * | 1980-06-02 | 1982-01-05 |
-
1988
- 1988-12-16 JP JP1988163252U patent/JPH0649640Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4980756A (en) * | 1972-11-15 | 1974-08-03 | ||
| JPS57117U (en) * | 1980-06-02 | 1982-01-05 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0649640Y2 (en) | 1994-12-14 |
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