JPS59166713A - Static pressure bearing of gear shaping machine - Google Patents
Static pressure bearing of gear shaping machineInfo
- Publication number
- JPS59166713A JPS59166713A JP4054283A JP4054283A JPS59166713A JP S59166713 A JPS59166713 A JP S59166713A JP 4054283 A JP4054283 A JP 4054283A JP 4054283 A JP4054283 A JP 4054283A JP S59166713 A JPS59166713 A JP S59166713A
- Authority
- JP
- Japan
- Prior art keywords
- fluid
- sleeve
- pressure
- flow path
- 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
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
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0629—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion
- F16C32/064—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion the liquid being supplied under pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は歯車形削盤のカッタ軸のラジアル軸受として使
用される静圧軸受に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hydrostatic bearing used as a radial bearing for a cutter shaft of a gear shaping machine.
歯車形削盤のカッタ軸に使用する静圧軸受は種々の型式
のものが従来から使用されているが、代表的な静圧軸受
は第１図（ａ）、（ｂ）に示す通りである。図面に示す
ように、流体絞り部４はカッタ軸箱本体８とは異なる位
ｉＭの流体絞り構成部６に設けられている。これは歯車
形削盤の構造上の制約があるためである。供給口５がら
流体絞り構成部６に供給された供給圧１）Ｓの油はそれ
ぞれの流体絞り部４に導かれ、ここで絞られたポケット
圧ｐｏの油はそれぞれ流路管７を経てカッタ軸箱本体８
に供給される。供給された油はスリーブ２の外周上に設
けられた油溝がら油孔を経てカッタ軸１に接するスリー
ブ２のポケット部８に供給される。それぞれの油の流路
からの漏洩は０リングその他の封鎖装置でシールされる
こと勿論である。Various types of static pressure bearings have been used for the cutter shaft of gear shaping machines, but typical static pressure bearings are shown in Figures 1 (a) and (b). . As shown in the drawings, the fluid restrictor 4 is provided in a fluid restrictor component 6 at a position iM different from the cutter shaft box body 8. This is due to the structural limitations of the gear shaper. The oil at the supply pressure 1) S supplied from the supply port 5 to the fluid throttle component 6 is guided to each fluid throttle unit 4, and the oil at the pocket pressure po throttled here passes through the flow path pipe 7 to the cutter. Axle box body 8
is supplied to The supplied oil is supplied to the pocket portion 8 of the sleeve 2 in contact with the cutter shaft 1 through an oil groove and an oil hole provided on the outer periphery of the sleeve 2. Of course, leakage from each oil flow path is sealed with an O-ring or other sealing device.
この場合、それぞれのポケット圧力の調整は流体絞り部
４で行なうが、スリーブ２と流体絞り部４とが距離的に
離れているので、流路管７内での圧力損失が大きく、不
利であると共に、それぞれの流路管内の圧力損失が等し
くなるよう配管方式を°考慮する必要があった。またポ
ケット圧の調整も、歯車形削盤の操作位置から流体絞り
部４が離れているため、調整作業は容易でなかった。In this case, each pocket pressure is adjusted by the fluid constrictor 4, but since the sleeve 2 and the fluid constrictor 4 are distant from each other, the pressure loss within the flow pipe 7 is large, which is disadvantageous. At the same time, it was necessary to consider the piping system so that the pressure loss in each flow pipe was equal. Further, adjustment of the pocket pressure was not easy because the fluid restricting section 4 was located far from the operating position of the gear shaping machine.
本発明は流路管部の圧力損失を最小にし、更にスリーブ
内のポケット圧の調整作業を容易に行なうことができる
ようにした歯車形削盤の静圧スリーブを得るにある。SUMMARY OF THE INVENTION The present invention provides a static pressure sleeve for a gear shaping machine that minimizes pressure loss in a flow path pipe portion and also allows easy adjustment of pocket pressure within the sleeve.
図面につき本発明を説明する。The invention will be explained with reference to the drawings.
第２図（ａ）、（ｂ）に本発明の好適な実施例を示す。A preferred embodiment of the present invention is shown in FIGS. 2(a) and 2(b).
図面から明らかなように、本発明によれば供給圧Ｐｓの
油をカッタ軸箱本体１８の供給口１５からスリーブ１２
とカッタ軸箱本体１８との境界部に導入する。この境界
部にはスリーブの外周上に油溝を設ける。この油溝から
油はカッタ軸箱本体１８の内部に構成された流体絞り部
１４へそれぞれ導かれる。流体絞り部１４で絞られたポ
ケット圧ｐＯを有する油はスリーブ１２の油孔又はスリ
ーブ外周上に設けられた油溝から油孔を経てそれぞれの
ポケット部１８に達する。この境界部の間隙は通常０．
００５ ｕ程度又はそれ以下に設定さ・れるので油の漏
洩は無視できる程度である。As is clear from the drawings, according to the present invention, oil at a supply pressure Ps is supplied from the supply port 15 of the cutter shaft box body 18 to the sleeve 12.
and the cutter shaft box body 18. At this boundary, an oil groove is provided on the outer periphery of the sleeve. The oil is guided from these oil grooves to fluid restricting portions 14 formed inside the cutter shaft box body 18, respectively. The oil having the pocket pressure pO that has been throttled by the fluid restricting portion 14 reaches each pocket portion 18 through the oil hole in the sleeve 12 or the oil groove provided on the outer periphery of the sleeve. The gap at this boundary is usually 0.
Since the pressure is set to about 0.005 u or less, oil leakage is negligible.
本発明静圧軸受は上述したように構成されるから、流体
絞り部１４からポケット部１８へノ流路は他と交差する
ことなく構成され、０リングなどの封鎖装置を用いない
。０リングを使用しようとすると、カッタ軸箱本体１３
の内部に流体絞り部１４を構成することは実際上困鄭で
ある。また供給圧ｐｓの油を供給口１５から直接流体絞
り部１４へ導く方法も考えられるが、流路の構成上の制
約が多く非常に困難である。Since the hydrostatic bearing of the present invention is configured as described above, the flow path from the fluid restricting portion 14 to the pocket portion 18 is configured without intersecting any other passage, and no sealing device such as an O-ring is used. When trying to use the 0-ring, the cutter shaft box body 13
In practice, it is difficult to configure the fluid restricting section 14 inside the tube. Another possible method is to directly guide the oil at the supply pressure ps from the supply port 15 to the fluid throttle section 14, but this is extremely difficult due to many restrictions due to the structure of the flow path.
本発明によればカッタ軸箱本体１８の内部に流体絞り部
１４を設けたので、流体絞り部１４とスリーブ１２のポ
ケット部との距離が短かくなり、この流路中での圧力損
失は微小であり、従ってそれぞれの流路中の圧力損失の
ばらつきを考慮する必要がなくなる。この第２図の実施
例ではカッタ軸箱本体１８の正面側に油のポケット圧ｐ
ｏの測定用の接続口１９を設けている。流体絞り部１４
は図面から明らかなように調整可能であり、カッタ軸箱
本体１８の下面部から絞り調整を行なうことができる。According to the present invention, since the fluid constriction part 14 is provided inside the cutter shaft box body 18, the distance between the fluid constriction part 14 and the pocket part of the sleeve 12 is shortened, and the pressure loss in this flow path is minute. Therefore, there is no need to consider variations in pressure loss in each flow path. In the embodiment shown in FIG. 2, there is an oil pocket pressure p on the front side of the cutter shaft box body 18.
A connection port 19 for measuring o is provided. Fluid restrictor 14
As is clear from the drawings, it is adjustable, and the aperture can be adjusted from the lower surface of the cutter shaft box body 18.
従って歯車形削盤の作業者は機械の正面位置で、正面の
油圧計を見ながらそれぞれのポケット圧の絞り調整を容
易に行なうことができる。Therefore, the operator of the gear shaping machine can easily adjust the pocket pressure in each pocket while looking at the oil pressure gauge on the front of the machine.
以上説明したように、この発明は流体絞り部をカッタ軸
箱本体の内部に構成したことにより、流路管内筒圧力損
失が最小になり、静圧軸受の全体の構成が簡単化され、
静圧バランスの調整も容易になる効果がある。As explained above, in this invention, by configuring the fluid restriction part inside the cutter shaft box body, the pressure loss in the flow path tube is minimized, and the overall structure of the hydrostatic bearing is simplified.
This has the effect of making it easier to adjust the static pressure balance.
第１図（ａ）及び（ｂ）はそれぞれ従来の静圧スリーブ
の縦断面図及び横断面図、
第２図（ａ）及び（ｂ）は本発明静圧スリーブの縦断面
図及び横断面図である。
１．１１・・・カッタ軸 ２，１２・・・スリー
ブ８．１８・・・カッタ軸箱本体 ４．１４・・・流体
絞り部５．１５・・・供給口 ６・・・流体絞
り構成部７・・・流路管 ８，１８・・・ポ
ケット部１９・・・接続口。
第１図
（ａ）
一７〇−
第１図
（ｂ）
第２図
（ａ）FIGS. 1(a) and (b) are a longitudinal sectional view and a transverse sectional view, respectively, of a conventional hydrostatic sleeve. FIGS. 2(a) and (b) are a longitudinal sectional view and a transverse sectional view of a hydrostatic sleeve of the present invention. It is. 1.11...Cutter shaft 2,12...Sleeve 8.18...Cutter shaft box body 4.14...Fluid restrictor 5.15...Supply port 6...Fluid restrictor component 7... Flow path pipe 8, 18... Pocket portion 19... Connection port. Figure 1 (a) 170- Figure 1 (b) Figure 2 (a)
Claims (1)
スリーブと、このスリーブ内のカッタ軸との間に流体を
供給する静圧軸受において、 前記カッタ軸箱本体に設けた流体供給口と、この流体供
給口から供給された流体を所定圧まで＼絞る作用を有し
前記カッタ軸箱本体内に形成された流体絞り部とを具え
、前記流体絞り部の所定圧の流体を直接前記スリーブの
前記流体ポケット部に供給することを特徴とする歯車形
削盤の静圧軸受。 ａ 流体圧力を調整できるよう前記流体絞り部を構成し
た特許請求の範囲第１項に記載の静圧軸受。[Scope of Claims] 1. A hydrostatic bearing that supplies fluid between a sleeve having a fluid pocket within a cutter shaft box body and a cutter shaft within this sleeve, comprising: A fluid supply port, and a fluid constriction portion formed in the cutter shaft box body and having the function of constricting the fluid supplied from the fluid supply port to a predetermined pressure, the fluid at a predetermined pressure of the fluid constriction portion. A hydrostatic bearing for a gear shaping machine, characterized in that the fluid is directly supplied to the fluid pocket portion of the sleeve. (a) The hydrostatic bearing according to claim 1, wherein the fluid restricting portion is configured to adjust fluid pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4054283A JPS59166713A (en) | 1983-03-14 | 1983-03-14 | Static pressure bearing of gear shaping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4054283A JPS59166713A (en) | 1983-03-14 | 1983-03-14 | Static pressure bearing of gear shaping machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59166713A true JPS59166713A (en) | 1984-09-20 |
Family
ID=12583330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4054283A Pending JPS59166713A (en) | 1983-03-14 | 1983-03-14 | Static pressure bearing of gear shaping machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59166713A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0217215A (en) * | 1988-07-06 | 1990-01-22 | Hitachi Ltd | Static pressure bearing |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4813771U (en) * | 1971-06-25 | 1973-02-15 |
-
1983
- 1983-03-14 JP JP4054283A patent/JPS59166713A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4813771U (en) * | 1971-06-25 | 1973-02-15 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0217215A (en) * | 1988-07-06 | 1990-01-22 | Hitachi Ltd | Static pressure bearing |
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