JPH0139000B2 - - Google Patents
Info
- Publication number
- JPH0139000B2 JPH0139000B2 JP14243082A JP14243082A JPH0139000B2 JP H0139000 B2 JPH0139000 B2 JP H0139000B2 JP 14243082 A JP14243082 A JP 14243082A JP 14243082 A JP14243082 A JP 14243082A JP H0139000 B2 JPH0139000 B2 JP H0139000B2
- Authority
- JP
- Japan
- Prior art keywords
- hollow shaft
- oil
- bearing sleeve
- supply hole
- hollow
- 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.)
- Expired
Links
- 238000005461 lubrication Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 23
- 239000010687 lubricating oil Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/36—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with feed by pumping action of the member to be lubricated or of a shaft of the machine; Centrifugal lubrication
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、軸受筒が外面に嵌合固着され、かつ
回転に伴つて、軸受筒の外面に自動的に給油が行
われるようにした自動給油機能を有する中空回転
軸に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides an automatic system in which a bearing sleeve is fitted and fixed to an outer surface, and the outer surface of the bearing sleeve is automatically lubricated as it rotates. The present invention relates to a hollow rotating shaft with a lubrication function.
軽負荷用の回転軸として、パイプ等からなる中
空軸が、しばしば使用される。このような中空軸
の軸受部は、外面に軸受筒を嵌合し、バルジ加工
等によりこれを固着して形成することが多い。
A hollow shaft made of a pipe or the like is often used as a rotating shaft for light loads. The bearing portion of such a hollow shaft is often formed by fitting a bearing sleeve onto the outer surface and fixing this by bulge processing or the like.
この場合、軸受部に給油孔を穿設して、中空軸
内より自動的に給油することができる。 In this case, by drilling an oil supply hole in the bearing part, oil can be automatically supplied from inside the hollow shaft.
ところで、第１図に示すように、バルジ加工に
より、中空軸１に軸受筒２を固着して軸受部を形
成する際、それと同時に、中空軸１における軸受
筒２の両側方が、若干環状に膨出して、内面に環
状溝４，４ができる。 By the way, as shown in FIG. 1, when the bearing sleeve 2 is fixed to the hollow shaft 1 by bulge processing to form a bearing part, at the same time, both sides of the bearing sleeve 2 on the hollow shaft 1 are slightly annularly shaped. It bulges out, forming annular grooves 4, 4 on the inner surface.
なお、３は、中空軸１と軸受筒２に穿設された
給油孔、５は、軸受筒２と共に、バルジ加工によ
り嵌着されたプーリ、６は、中央に送油孔７が穿
設された閉塞栓である。 In addition, 3 is an oil supply hole drilled in the hollow shaft 1 and the bearing sleeve 2, 5 is a pulley fitted together with the bearing sleeve 2 by bulge processing, and 6 is an oil supply hole 7 drilled in the center. It is an occluded plug.
このような中空軸１においては、潤滑油８の供
給量が少ないと、中空軸１の内面に沿う薄層の潤
滑油８が、遠心力により各環状溝４に集まつて、
給油孔３より吐出し難くなり、軸受筒２の外面へ
の給油が円滑に行われなくなる。
In such a hollow shaft 1, when the amount of lubricating oil 8 supplied is small, a thin layer of lubricating oil 8 along the inner surface of the hollow shaft 1 gathers in each annular groove 4 due to centrifugal force.
It becomes difficult to discharge oil from the oil supply hole 3, and oil cannot be smoothly supplied to the outer surface of the bearing sleeve 2.
本発明は、上述の問題点を解決した給油装置に
関するもので、その特徴は、中空軸に軸受筒を嵌
合固着するとともに、軸受筒の外面より中空軸の
内面に至る給油孔を穿設してなる中空回転軸にお
いて、前記給油孔の中空軸における開口端を含む
部分において、中空軸に、その内面に形成された
他のいずれの凹所よりも深い環状の油溜溝を形成
したことにある。
The present invention relates to a lubricating device that solves the above-mentioned problems, and its characteristics are that a bearing sleeve is fitted and fixed to a hollow shaft, and a lubricating hole is drilled from the outer surface of the bearing sleeve to the inner surface of the hollow shaft. In the hollow rotating shaft, an annular oil sump groove is formed in the hollow shaft at a portion including the open end of the hollow shaft of the oil supply hole, which is deeper than any other recess formed on the inner surface of the hollow shaft. be.
中空軸の回転に伴い、遠心力によつて、同軸内
の潤滑油は、油溜溝に比較的多量に集まり、給油
孔を経て、軸受筒の外面に、円滑に供給される。
As the hollow shaft rotates, centrifugal force causes a relatively large amount of lubricating oil within the hollow shaft to collect in the oil sump groove, and is smoothly supplied to the outer surface of the bearing cylinder through the oil supply hole.
以下、本発明の一実施例を、第２図に基いて具
体的に説明する。
Hereinafter, one embodiment of the present invention will be specifically described based on FIG. 2.
なお、第１図と同一部分については、同一符号
を付して、説明を省略する。 Note that the same parts as in FIG. 1 are denoted by the same reference numerals, and the description thereof will be omitted.
１１は、上記軸受筒２に相当する軸受筒で、そ
の内面には、所要の深さの環状凹溝１２が切設さ
れている。 Reference numeral 11 denotes a bearing cylinder corresponding to the bearing cylinder 2 described above, and an annular groove 12 of a required depth is cut into the inner surface of the bearing cylinder.
この軸受筒１１を、上述を同様に、バルジ加工
により中空軸１に固着すると、中空軸１の内面に
は、環状の油溜溝１３が形成される。 When this bearing sleeve 11 is fixed to the hollow shaft 1 by bulge processing in the same manner as described above, an annular oil sump groove 13 is formed on the inner surface of the hollow shaft 1.
なお、上記環状凹溝１２の径は、油溜溝１３の
径が、バルジ加工時に自然発生する環状溝４よ
り、大径となるように定めてある。 The diameter of the annular groove 12 is determined so that the diameter of the oil reservoir groove 13 is larger than that of the annular groove 4 that naturally occurs during bulge processing.
この油溜溝１３と合致する個所において、中空
軸１と軸受筒１１を貫通する給油孔３を穿設すれ
ば、送油孔７より送入された潤滑油８は、遠心力
により油溜溝１３に比較的多量に溜まり、給油孔
３より軸受筒１１の外面に、円滑に供給される。 If an oil supply hole 3 penetrating through the hollow shaft 1 and the bearing sleeve 11 is drilled at a location that coincides with this oil sump groove 13, the lubricating oil 8 fed from the oil supply hole 7 will be transferred into the oil sump groove by centrifugal force. A relatively large amount of oil accumulates in the oil supply hole 3 and is smoothly supplied to the outer surface of the bearing sleeve 11 through the oil supply hole 3.
上述のように、本発明によると、少量の潤滑油
をもつて、軸受部に円滑に供給油することができ
る。
As described above, according to the present invention, a small amount of lubricating oil can be smoothly supplied to the bearing portion.
第１図は、従来の自動給油機能を備える中空回
転軸の中央縦断正面図、第２図は、本発明による
自動給油機能を備える中空回転軸の中央縦断正面
図である。
１……中空軸、２……軸受筒、３……給油孔、
４……環状溝、５……プーリ、６……閉塞栓、７
……送油孔、８……潤滑油、１１……軸受筒、１
２……環状凹溝、１３……油溜溝。
FIG. 1 is a central longitudinal sectional front view of a conventional hollow rotating shaft with an automatic lubrication function, and FIG. 2 is a central vertical sectional front view of a hollow rotating shaft with an automatic lubrication function according to the present invention. 1...Hollow shaft, 2...Bearing cylinder, 3...Oil supply hole,
4... Annular groove, 5... Pulley, 6... Blocking plug, 7
... Oil feed hole, 8 ... Lubricating oil, 11 ... Bearing sleeve, 1
2...Annular groove, 13...Oil sump groove.
Claims (1)
受筒の外面より中空軸の内面に至る給油孔を穿設
してなる中空回転軸において、前記給油孔の中空
軸における開口端を含む部分において、中空軸
に、その内面に形成された他のいずれの凹所より
も深い環状の油溜溝を形成したことを特徴とする
自動給油機能を有する中空回転軸。1. In a hollow rotary shaft in which a bearing sleeve is fitted and fixed to a hollow shaft and an oil supply hole is drilled from the outer surface of the bearing sleeve to the inner surface of the hollow shaft, in a portion of the hollow shaft that includes the opening end of the oil supply hole. A hollow rotary shaft having an automatic lubrication function, characterized in that the hollow shaft is provided with an annular oil sump groove that is deeper than any other recess formed on the inner surface of the hollow shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14243082A JPS5934096A (en) | 1982-08-17 | 1982-08-17 | Automatic oil feeding apparatus for hollow rotary shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14243082A JPS5934096A (en) | 1982-08-17 | 1982-08-17 | Automatic oil feeding apparatus for hollow rotary shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5934096A JPS5934096A (en) | 1984-02-24 |
| JPH0139000B2 true JPH0139000B2 (en) | 1989-08-17 |
Family
ID=15315132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14243082A Granted JPS5934096A (en) | 1982-08-17 | 1982-08-17 | Automatic oil feeding apparatus for hollow rotary shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5934096A (en) |
-
1982
- 1982-08-17 JP JP14243082A patent/JPS5934096A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5934096A (en) | 1984-02-24 |
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