JP2940103B2 - Jet lubrication device - Google Patents
Jet lubrication deviceInfo
- Publication number
- JP2940103B2 JP2940103B2 JP21936890A JP21936890A JP2940103B2 JP 2940103 B2 JP2940103 B2 JP 2940103B2 JP 21936890 A JP21936890 A JP 21936890A JP 21936890 A JP21936890 A JP 21936890A JP 2940103 B2 JP2940103 B2 JP 2940103B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- pump
- port
- bearing
- oil supply
- 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 - Fee Related
Links
Landscapes
- Auxiliary Devices For Machine Tools (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、高速マシニンングセンタ等の工作機械に
用いられ、ジェット潤滑されるスピンドルのジェット潤
滑装置に関する。Description: TECHNICAL FIELD The present invention relates to a jet lubrication device for a spindle used in a machine tool such as a high-speed machining center and jet-lubricated.
従来のジェット潤滑装置としては、例えば実開昭64−
42841号公報に記載されるようなものがある。この従来
の装置は、主軸の外周に軸受を介してハウジングを配
し、前記ハウジングには軸受への給油口と、軸受からの
排油口と、軸受からの漏油を排出する漏油口とを備え、
前記給油口には給油ポンプからの給油路を接続するとと
もに、前記排油口には排油ポンプへの排油路を接続し、
さらに前記漏油口には漏油吸引ポンプへの漏油路を接続
してなる。As a conventional jet lubrication system, for example,
There is one described in Japanese Patent No. 42841. In this conventional device, a housing is arranged on the outer periphery of a main shaft via a bearing, and the housing has an oil supply port to the bearing, an oil outlet from the bearing, and an oil outlet for discharging oil from the bearing. With
The oil supply port is connected to an oil supply path from an oil supply pump, and the oil discharge port is connected to an oil supply path to an oil discharge pump,
Further, an oil leak path to an oil leak suction pump is connected to the oil leak port.
而して、この従来技術によれば、給油ポンプから給油
口に供給された潤滑油で軸受が潤滑及び冷却され、この
潤滑油は排油口から排油ポンプに吸引されてリザーバに
戻ることになり、またスピンドルとハウジングとの間か
ら漏れた潤滑油は、漏油口から漏油吸引ポンプに吸引さ
れて、これもリザーバに戻るから、潤滑油がハウジング
外部に漏出して周辺を汚染することを防止している。According to this conventional technique, the bearing is lubricated and cooled by the lubricating oil supplied from the oil supply pump to the oil supply port, and the lubricating oil is sucked from the oil discharge port by the oil discharge pump and returned to the reservoir. Also, the lubricating oil leaking from between the spindle and the housing is sucked from the oil leak port by the oil leak suction pump and returns to the reservoir, so that the lubricating oil leaks out of the housing and contaminates the surroundings. Has been prevented.
しかしながら、前記従来のジェット潤滑装置によれ
ば、オイルシール機能に優れているものほど漏油が少な
いことになり、したがって漏油吸引ポンプが空気を多量
に吸引することになって空転する時間が多くなる。そう
すると、漏油吸引ポンプが潤滑不足となりやすく、その
結果、ポンプが摩耗してしまうという不具合があった。However, according to the conventional jet lubricating apparatus, the more excellent the oil seal function, the less oil leakage, and therefore, the oil leakage suction pump sucks a large amount of air, so that the idling time is long. Become. Then, the oil leakage suction pump tends to be insufficiently lubricated, and as a result, the pump is worn.
そこで、この発明は、従来技術の前記不具合に着目し
てなされたものであって、漏油が少なくても、漏油吸引
ポンプに必要量の潤滑油を供給して漏油吸引ポンプの摩
耗を防止することを目的としている。In view of the above, the present invention has been made in view of the above-mentioned disadvantages of the related art. Even if the oil leakage is small, the required amount of lubricating oil is supplied to the oil leakage suction pump to reduce the wear of the oil leakage suction pump. It is intended to prevent it.
この発明のジェット潤滑装置は、主軸の外周に軸受を
介してハウジングを配し、前記ハウジングには軸受への
給油口と、軸受からの排油口と、軸受からの漏油を排出
する漏油口とを備え、前記給油口には給油ポンプからの
給油路を接続するとともに、前記排油口には排油ポンプ
への排油路を接続し、さらに前記漏油口には漏油吸引ポ
ンプへの漏油路を接続してなり、前記給油路から分岐路
を分岐させ、この分岐路を前記漏油吸引ポンプの入側に
接続したものである。In the jet lubricating apparatus of the present invention, a housing is arranged on the outer periphery of a main shaft via a bearing, and an oil supply port for the bearing, an oil discharge port from the bearing, and an oil leakage for discharging oil from the bearing are provided in the housing. A lubrication port, a lubrication path from a lubrication pump is connected to the lubrication port, a lubrication path to the lubrication pump is connected to the lubrication port, and a lubrication suction pump is connected to the lubrication port. And a branch path is branched from the oil supply path, and this branch path is connected to the inlet side of the oil leakage suction pump.
前記給油路から分岐路を分岐させることに代えて、前
記漏油吸引ポンプの入側をリザーバに接続して、少量の
潤滑油が供給されるようにしてもよい。Instead of branching the branch passage from the oil supply passage, the inlet side of the oil leakage suction pump may be connected to a reservoir so that a small amount of lubricating oil is supplied.
給油ポンプから給油口に供給された潤滑油で軸受が潤
滑及び冷却され、主軸の円滑な高速回転が確保される。
この潤滑油は漏油口から漏油ポンプに吸引されてリザー
バに戻る。また、主軸とハウジングとの間から漏れた潤
滑油は、漏油口から漏油吸引ポンプに吸引されて、これ
もリザーバに戻るから、潤滑油がハウジング外部に漏出
して周辺を汚染することを防止する。一方、給油ポンプ
から吐出された潤滑油は一部が分岐路を経て漏油吸引ポ
ンプに供給されて、前記漏油の量が僅かな場合であって
も、漏油吸引ポンプの潤滑に貢献するから、漏油吸引ポ
ンプの早期摩耗を防止する。The bearing is lubricated and cooled by the lubricating oil supplied to the oil supply port from the oil supply pump, and smooth high-speed rotation of the main shaft is ensured.
The lubricating oil is sucked from the oil leak port by the oil leak pump and returns to the reservoir. Further, the lubricating oil leaking from between the main shaft and the housing is sucked into the oil leak suction pump from the oil leak port and returns to the reservoir, so that the lubricating oil leaks out of the housing and contaminates the surroundings. To prevent. On the other hand, part of the lubricating oil discharged from the oil supply pump is supplied to the oil leakage suction pump via the branch path, and contributes to the lubrication of the oil leakage suction pump even when the amount of the oil leakage is small. Thus, early wear of the oil leak suction pump is prevented.
前記分岐路に代えて、漏油吸引ポンプの入側をリザー
バに接続すると、漏油吸引ポンプにはリザーバから直接
給油されて潤滑が行われる。この直接給油の手段として
は、小型のポンプを介在させる手段や、漏油吸引ポンプ
の負圧を利用して潤滑油をリザーバから吸引させる手段
等がある。When the inlet side of the oil leakage suction pump is connected to the reservoir instead of the branch passage, the oil leakage suction pump is supplied with lubrication directly from the reservoir to perform lubrication. As means for direct lubrication, there are means for interposing a small pump, means for sucking lubricating oil from a reservoir using negative pressure of an oil leakage suction pump, and the like.
第１図は第１実施例の竪形ジェット潤滑装置であり、
高速マシニングセンタ等の主軸として使用されるもので
ある。ここで、主軸１は矢印Ａ方向を上として竪形に設
置されるものであり、その外周に複数の軸受2,3がその
内輪を固定して嵌合され、軸受2,2の間及び軸受3,3の間
には間座24が介在し、また下側の軸受２と上側の軸受３
との間にも間座23が介在している。各軸受2,3の外輪に
はハウジング５が外嵌固定されて、このハウジング５に
より主軸１が包囲されている。FIG. 1 shows a vertical jet lubricating apparatus of a first embodiment,
It is used as a main shaft of a high-speed machining center or the like. Here, the main shaft 1 is installed vertically with the direction of arrow A upward, and a plurality of bearings 2 and 3 are fitted around the outer periphery of the main shaft 1 with the inner ring fixed thereto. A spacer 24 is interposed between 3, 3 and the lower bearing 2 and the upper bearing 3
The spacer 23 is also interposed between the two. A housing 5 is externally fitted and fixed to the outer rings of the bearings 2 and 3, and the main shaft 1 is surrounded by the housing 5.
ハウジング５には、２つのジェット潤滑油の給油口6,
7が開設されており、上部の給油口６は、これに連続し
た潤滑油の通路6aを介して、上部の軸受２に潤滑油を供
給し、また下部の給油口７は、これに連続した潤滑油の
通路7aを介して下部の軸受３を潤滑している。The housing 5 has two jet lubrication oil inlets 6,
The upper oil supply port 6 supplies lubricating oil to the upper bearing 2 through a continuous lubricating oil passage 6a, and the lower oil supply port 7 is connected thereto. The lower bearing 3 is lubricated through the lubricating oil passage 7a.
軸受２を潤滑した潤滑油は、通路８を介して、給油口
６より下側にある排油口９に至り、また軸受３を潤滑し
た潤滑油は、通路10を介して、給油口７より下側にある
排油口11に至るようになっている。また、ハウジング５
の上端部と下端部には、漏油を排出する漏油口17,12が
設けられる。The lubricating oil that has lubricated the bearing 2 reaches the drain port 9 below the oil supply port 6 through the passage 8, and the lubricating oil that has lubricated the bearing 3 passes through the passage 10 from the oil supply port 7. It reaches the oil drain port 11 on the lower side. Also, housing 5
Oil leak ports 17, 12 for discharging oil leaks are provided at the upper end and the lower end of the oil tank.
主軸１の下端外周には、いずれもハウジング５の一部
をなす部材14,15,16が外嵌されていて、前記部材14に
は、主軸１の外周部や軸受３からの漏油であって排油口
11より下側で前記部材15,16間に形成されるラビリンス1
8を通過したものが溜るオイルポケット13が形成され、
このオイルポケット13に前記漏油口12が開口している。Members 14, 15 and 16, which are all part of the housing 5, are externally fitted to the outer periphery of the lower end of the main shaft 1, and the member 14 receives oil leakage from the outer peripheral portion of the main shaft 1 and the bearing 3. Oil drain
Labyrinth 1 formed between members 15 and 16 below 11
An oil pocket 13 is formed where things that have passed through 8 accumulate,
The oil leak port 12 is opened in the oil pocket 13.
前記給油口6,7、排油口9,11、漏油口17,12には、次の
ような油路が接続されている。すなわち、給油ポンプ19
の出側からの給油路20先端に接続された分配器21に給油
口6,7が夫々接続さて、所定の比で潤滑油が夫々に供給
されるとともに、一方の排油口９には排油路25を介して
排油ポンプ26の入側が接続され、他方の排油口11には排
油路27を介して排油ポンプ28の入側が接続される。ま
た、漏油口17,12には漏油路29を介して漏油吸引ポンプ3
0の入側が接続されるとともに、前記給油路20から分岐
した分岐路31が、前記漏油路29に接続されている。The following oil passages are connected to the oil supply ports 6, 7, the oil discharge ports 9, 11, and the oil leak ports 17, 12, respectively. That is, the refueling pump 19
Oil supply ports 6 and 7 are respectively connected to a distributor 21 connected to the tip of an oil supply path 20 from the outlet side of the oil supply path, so that lubricating oil is supplied at a predetermined ratio, and one oil discharge port 9 is provided. The input side of a drain pump 26 is connected via an oil passage 25, and the input side of a drain pump 28 is connected to the other drain port 11 via a drain passage 27. In addition, oil leak suction pump 3 is connected to oil leak ports 17 and 12 through oil leak passage 29.
The input side of 0 is connected, and a branch path 31 branched from the oil supply path 20 is connected to the oil leakage path 29.
前記給油ポンプ19の給油能力に対して排油ポンプ26,2
8は分配器21で分配される油量に見合う吸引能力を有
し、また漏油吸引ポンプ30は漏油の吸引能力があればよ
いから、その吸引能力は排油ポンプ26,28に比してさら
に低く設定されている。したがって給油ポンプ19の給油
量に比して漏油吸引ポンプ30の吸引量は一段と低いもの
が使用されている。なお、この実施例では前記ポンプ2
6,28,30にはトロコイドポンプを使用している。32はリ
ザーバ,33,34は流量調製弁であり、絞り弁又は可変絞り
弁からなる。The oil discharge pumps 26 and 2 correspond to the oil supply capacity of the oil supply pump 19.
8 has a suction capacity corresponding to the amount of oil distributed by the distributor 21, and the oil leakage suction pump 30 only needs to have an oil leakage suction ability. Is set even lower. Therefore, the suction amount of the oil leakage suction pump 30 is lower than that of the oil supply pump 19. In this embodiment, the pump 2
Trochoid pumps are used for 6,28,30. Reference numeral 32 denotes a reservoir, and reference numerals 33 and 34 denote flow control valves, which are throttle valves or variable throttle valves.
而して、給油ポンプ19から供給された潤滑油は給油路
20を経て分配器21により分配されて給油口6,7からハウ
ジング５内に入り、前記のように軸受2,3の潤滑及び冷
却をしてから排油口9,11に至り、排油ポンプ26,28の吸
引力により排油路25,27を通過して排油ポンプ26,28に吸
引され、さらにこれらの出側のリザーバ32に戻される。Thus, the lubricating oil supplied from the oil supply pump 19 is supplied to the oil supply passage.
The oil is distributed by the distributor 21 through the oil supply ports 6, 7 and enters the housing 5 through the oil supply ports 6, 7, and after lubrication and cooling of the bearings 2, 3 as described above, the oil reaches the oil discharge ports 9, 11, and the oil discharge pump With the suction force of 26 and 28, the oil passes through the oil drain passages 25 and 27, is sucked by the oil drain pumps 26 and 28, and is returned to the reservoir 32 on the outlet side.
また漏油は漏油口17,12から漏油路29を介して漏油吸
引ポンプ30に吸引されてリザーバ32に戻る。ここで、前
記給油路20から分岐している分岐路31が漏油吸引ポンプ
30の入側に接続されているため、このポンプ30には、給
油ポンプ19の吐出量と流量調整弁33,34により設定され
た値との関係で決定される所定量の潤滑油が常時供給さ
れることになり、前記漏油口17,12からの漏油量がない
場合又は少ない場合でも、漏油吸引ポンプ30に吸引され
る油量は最低限が保障されている。このため、漏油吸引
ポンプ30の油量不足によって、このポンプ30の潤滑不足
や摩耗を生じるおそれはない。The oil leak is sucked from the oil leak ports 17 and 12 via the oil leak path 29 by the oil leak suction pump 30 and returns to the reservoir 32. Here, a branch passage 31 branched from the oil supply passage 20 is an oil leakage suction pump.
Since the pump 30 is connected to the inlet side, the pump 30 is constantly supplied with a predetermined amount of lubricating oil determined by the relationship between the discharge amount of the oil supply pump 19 and the value set by the flow regulating valves 33 and 34. That is, even if there is no or little oil leakage from the oil leakage ports 17 and 12, the minimum amount of oil sucked by the oil leakage suction pump 30 is guaranteed. Therefore, there is no danger of insufficient lubrication or wear of the oil leak suction pump 30 due to insufficient oil amount.
なお、この実施例においては、給油路20から分岐路31
を経由して潤滑油を常時漏油吸引ポンプ30へ供給する構
成としたが、流量調整弁33,34の調整により、又は油圧
回路において慣用の弁機構を用いて、前記ポンプ30の潤
滑に必要な所定時間ごとのタイミングで潤滑油が分岐路
31を経由するようにしてもよい。Note that, in this embodiment, the refueling passage 20 is connected to the branch passage 31.
The lubricating oil is always supplied to the oil leak suction pump 30 through the oil pump, but it is necessary to lubricate the pump 30 by adjusting the flow rate adjusting valves 33 and 34 or using a conventional valve mechanism in a hydraulic circuit. Lubricating oil is branched at predetermined time intervals
It is also possible to go through 31.
また、この実施例においては、竪形のジェット潤滑装
置にこの発明を実施した例を説明したが、主軸１が水平
をなす横形のジェット潤滑装置についてこの発明を適用
することもできる。Further, in this embodiment, the embodiment in which the present invention is applied to a vertical jet lubrication apparatus has been described. However, the present invention can be applied to a horizontal jet lubrication apparatus in which the main shaft 1 is horizontal.
第２図は第２実施例を示すものであって、漏油吸引ポ
ンプ30への給油をリザーバ32から直接行うものである。
第２図では主軸１及びハウジング５等は第１図と同一で
あるため省略して、各ポンプ19,26,28,30とリザーバ32
の部分を示している。FIG. 2 shows a second embodiment, in which the oil supply to the oil leakage suction pump 30 is performed directly from the reservoir 32.
In FIG. 2, the main shaft 1, the housing 5 and the like are the same as in FIG. 1, and are omitted, and the pumps 19, 26, 28, 30 and the reservoir 32 are omitted.
Is shown.
ここでは、前記第１実施例の分岐路31及び、流量調整
弁33,34を用いないで、これらに代えて小型の副給油ポ
ンプ37を有する給油副次路36を用いている。すなわち、
第１実施例の漏油路29に、リザーバ32内に一端を臨ませ
た給油副次路36の他端を接続して、漏油吸引ポンプ30の
入側に給油口12とリザーバ32とを連結している。給油副
次路36の副給油ポンプ37は、漏油吸引ポンプ30の潤滑の
ために必要な少量の潤滑油をリザーバ32から漏油路29に
供給する能力があればよい。Here, instead of using the branch passage 31 and the flow rate adjusting valves 33 and 34 of the first embodiment, a sub-fuel supply passage 36 having a small sub-supply pump 37 is used instead. That is,
The oil supply passage 12 and the reservoir 32 are connected to the oil leakage passage 29 of the first embodiment by connecting the other end of the oil supply auxiliary passage 36 with one end facing the inside of the reservoir 32. Connected. The auxiliary oil supply pump 37 of the oil supply auxiliary passage 36 only needs to be capable of supplying a small amount of lubricating oil necessary for lubrication of the oil leakage suction pump 30 from the reservoir 32 to the oil leakage passage 29.
第３図は第３実施例に示すもので、第２実施例の副給
油ポンプ37に代えて給油副次路36に絞り弁35を介在させ
た例である。これは、開口面積が固定又は可変の絞り弁
35を介在させて、前記ポンプ30がリザーバ32の潤滑油の
みを吸引することを防止して、漏油口12からの漏油の吸
引を優先し、漏油量が不足して漏油吸引ポンプ30入側の
負圧が所定値を超えたときにのみリザーバ32から給油す
るようにしてある。この第３実施例は、漏油吸引ポンプ
30の吸引力に基づいて第１図に示したオイルポケット13
及びラビリンス18の減圧度が大きい場合、すなわちラビ
リンス18が大気に連通していないときなどに特に有効と
なる。FIG. 3 shows a third embodiment, in which a throttle valve 35 is interposed in a refueling sub-path 36 instead of the sub-fuel pump 37 of the second embodiment. This is a throttle valve with a fixed or variable opening area
By interposing 35, the pump 30 is prevented from sucking only the lubricating oil of the reservoir 32, giving priority to the suction of the oil leak from the oil leak port 12, and the oil leak amount pump Oil is supplied from the reservoir 32 only when the negative pressure at the inlet 30 exceeds a predetermined value. This third embodiment is an oil leakage suction pump.
The oil pocket 13 shown in FIG.
This is particularly effective when the degree of decompression of the labyrinth 18 is large, that is, when the labyrinth 18 does not communicate with the atmosphere.
これら第2,3実施例によれば、給油ポンプ19からの給
油は全量が常時軸受2,3に供給されることになって、こ
れらの軸受2,3の潤滑，冷却機能を低下させることがな
いし、分岐路への油量の制御も必要がなくなる。According to the second and third embodiments, the entire amount of the oil supplied from the oil supply pump 19 is always supplied to the bearings 2 and 3, which can reduce the lubrication and cooling functions of the bearings 2 and 3. In addition, there is no need to control the amount of oil to the branch road.
なお、前記第２実施例の副給油ポンプ37の動力源をタ
イマに連結し、また第３実施例の絞り弁35を可変とし
て、前記ポンプ30の潤滑に必要な所定時間ごとのタイミ
ングで潤滑油が給油副次路36を通過するようにしてもよ
いし、また前記ポンプ30に温度センサを設置しておい
て、これが所定以上の温度に至ったときに副給油ポンプ
37が起動し、また絞り弁35が開くような制御回路を設け
てもよい。第2,3実施例における他の構成及び作用は前
記第１実施例と同一である。The power source of the auxiliary oil supply pump 37 of the second embodiment is connected to a timer, and the throttle valve 35 of the third embodiment is made variable so that lubricating oil is supplied at predetermined time intervals necessary for lubrication of the pump 30. May pass through the refueling sub-path 36, or a temperature sensor may be installed in the pump 30, and when the temperature reaches a predetermined temperature or more, the sub-refueling pump
A control circuit that activates 37 and opens throttle valve 35 may be provided. Other configurations and operations in the second and third embodiments are the same as those in the first embodiment.
以上説明したように、第１請求項の発明にあっては、
主軸の外周に軸受を介してハウジングを配し、前記ハウ
ジングには軸受への給油口と、軸受からの排油口と、軸
受からの漏油を排出する漏油口とを備え、前記給油口に
は給油ポンプからの給油路を接続するとともに、前記排
油口には排油ポンプへの排油路を接続し、さらに前記漏
油口には漏油吸引ポンプへの漏油路を接続してなり、前
記給油路から分岐路を分岐させ、この分岐路を前記漏油
吸引ポンプの入側に接続したため、給油路から漏油吸引
ポンプに必要最低限の油量を分岐路を経由して直接給油
することなった。したがって、ジェット潤滑スピンドル
の漏油量が少ないか或いは全くなくても、漏油吸引ポン
プを潤滑することができて、その摩耗等の弊害を防止す
ることができる。As described above, in the first aspect of the invention,
A housing is disposed on the outer periphery of the main shaft via a bearing, and the housing includes an oil supply port to the bearing, an oil discharge port from the bearing, and an oil leakage port for discharging oil leakage from the bearing. The oil supply path from the oil supply pump is connected to the oil discharge port, the oil discharge path to the oil discharge pump is connected to the oil discharge port, and the oil leakage port is connected to the oil leakage path to the oil leakage suction pump. The branch path is branched from the oil supply path, and since this branch path is connected to the inlet side of the oil leakage suction pump, the minimum necessary oil amount from the oil supply path to the oil leakage suction pump is passed through the branch path. It was decided to refuel directly. Therefore, even if the amount of oil leakage of the jet lubrication spindle is small or not at all, the oil leakage suction pump can be lubricated, and the adverse effects such as wear thereof can be prevented.
また、第２請求項の発明にあっては、前記第１請求項
の発明の分岐路に代えて、漏油吸引ポンプの入側をリザ
ーバに接続したから、リザーバから漏油吸引ポンプに必
要最低限の油量を直接給油することができ、よって、第
１請求項の発明と同様にジェット潤滑スピンドルの漏油
量が少ないか或いは全くなくても、漏油吸引ポンプを潤
滑することができて、その摩耗等の弊害を防止すること
ができるという効果がある。According to the second aspect of the present invention, since the inlet side of the oil leakage suction pump is connected to the reservoir instead of the branch path of the first aspect of the invention, the minimum required for the oil leakage suction pump from the reservoir is provided. The oil leakage suction pump can be lubricated even if the amount of oil leakage of the jet lubrication spindle is small or not at all as in the first aspect of the invention. This has the effect that adverse effects such as wear can be prevented.
第１図は第１実施例を示す説明図、第２図は第２実施例
を示す要部説明図、第３図は第３実施例を示す要部説明
図である。 １……主軸、2,3……軸受、５……ハウジング、6,7……
給油口、9,11……排油口、12,17……漏油口、19……給
油ポンプ、20……給油路、25,27……排油路、26,28……
排油ポンプ、29……漏油路、30……漏油吸引ポンプ、31
……分岐路、32……リザーバ、35……絞り弁、36……給
油副次路。FIG. 1 is an explanatory view showing a first embodiment, FIG. 2 is an explanatory view of main parts showing a second embodiment, and FIG. 3 is an explanatory view of main parts showing a third embodiment. 1 ... Main shaft, 2,3 ... Bearing, 5 ... Housing, 6,7 ...
Oil supply port, 9,11… Oil discharge port, 12, 17… Oil leak port, 19… Oil supply pump, 20… Oil supply path, 25, 27… Oil discharge path, 26, 28…
Drainage pump, 29 ... Oil leak path, 30 ... Oil leak suction pump, 31
… Branch road, 32… Reservoir, 35… Throttle valve, 36… Refueling secondary path.
Claims (2)
し、前記ハウジングには軸受への給油口と、軸受からの
排油口と、軸受からの漏油を排出する漏油口とを備え、
前記給油口には給油ポンプからの給油路を接続するとと
もに、前記排油口には排油ポンプへの排油路を接続し、
さらに前記漏油口には漏油吸引ポンプへの漏油路を接続
してなり、前記給油路から分岐路を分岐させ、この分岐
路を前記漏油吸引ポンプの入側に接続したことを特徴と
するジェット潤滑装置。1. A housing is arranged on the outer periphery of a main shaft via a bearing, and the housing has an oil supply port for the bearing, an oil outlet from the bearing, and an oil outlet for discharging oil from the bearing. Prepared,
The oil supply port is connected to an oil supply path from an oil supply pump, and the oil discharge port is connected to an oil supply path to an oil discharge pump,
Further, an oil leak path to an oil leak suction pump is connected to the oil leak port, a branch path is branched from the oil supply path, and the branch path is connected to an inlet side of the oil leak suction pump. And jet lubrication equipment.
し、前記ハウジングには軸受への給油口と、軸受からの
排油口と、軸受からの漏油を排出する漏油口とを備え、
前記給油口には給油ポンプからの給油路を接続するとと
もに、前記排油口には排油ポンプへの排油路を接続し、
さらに前記漏油口には漏油吸引ポンプへの漏油路を接続
してなり、この漏油吸引ポンプの入側をリザーバに接続
したことを特徴とするジェット潤滑装置。2. A housing is arranged on the outer periphery of the main shaft via a bearing, and the housing has an oil supply port to the bearing, an oil discharge port from the bearing, and an oil leakage port for discharging oil leakage from the bearing. Prepared,
The oil supply port is connected to an oil supply path from an oil supply pump, and the oil discharge port is connected to an oil supply path to an oil discharge pump,
A jet lubricating apparatus further comprising an oil leak passage connected to an oil leak suction pump at the oil leak port, and an inlet side of the oil leak suction pump connected to a reservoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21936890A JP2940103B2 (en) | 1990-08-21 | 1990-08-21 | Jet lubrication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21936890A JP2940103B2 (en) | 1990-08-21 | 1990-08-21 | Jet lubrication device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04101747A JPH04101747A (en) | 1992-04-03 |
| JP2940103B2 true JP2940103B2 (en) | 1999-08-25 |
Family
ID=16734323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21936890A Expired - Fee Related JP2940103B2 (en) | 1990-08-21 | 1990-08-21 | Jet lubrication device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2940103B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717291A (en) * | 2012-06-11 | 2012-10-10 | 山东有荣机床有限公司 | Main driving device for vertical milling machine |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2270724B (en) * | 1992-09-19 | 1995-08-09 | Systematic Drill Head Co Ltd | Machine tools |
| JP2837806B2 (en) * | 1994-04-04 | 1998-12-16 | 功 庄田 | Lubrication device for main shaft support of head |
| JP5359319B2 (en) * | 2008-02-06 | 2013-12-04 | 日本精工株式会社 | Spindle device |
| JP5347538B2 (en) * | 2008-02-12 | 2013-11-20 | 日本精工株式会社 | Angular contact ball bearings for spindle equipment |
| JP5212142B2 (en) * | 2008-02-12 | 2013-06-19 | 日本精工株式会社 | Angular contact ball bearings for spindle equipment |
| JP5487804B2 (en) * | 2009-08-21 | 2014-05-14 | シンフォニアテクノロジー株式会社 | Rotating machine |
-
1990
- 1990-08-21 JP JP21936890A patent/JP2940103B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717291A (en) * | 2012-06-11 | 2012-10-10 | 山东有荣机床有限公司 | Main driving device for vertical milling machine |
| CN102717291B (en) * | 2012-06-11 | 2016-03-02 | 山东有荣机床有限公司 | Vertical knee-type milling machine main drive |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04101747A (en) | 1992-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3555634B2 (en) | Spindle device | |
| US4285200A (en) | Hydraulic assist turbocharger system | |
| US7476090B2 (en) | Vented turbocharger center housing and method | |
| US4170873A (en) | Lubrication system | |
| EP1298335A2 (en) | Hydraulic bearing | |
| CA1206762A (en) | Turbocharger compressor end ventilation system | |
| JP2940103B2 (en) | Jet lubrication device | |
| KR100407191B1 (en) | Fluid circulation centrifuge cleaning device and fluid circulation system | |
| US6164257A (en) | Oil passage construction for an engine with an oil pressure control device | |
| US4168689A (en) | Fuel injector internal passages and filter | |
| US5178522A (en) | Method and apparatus for supplying oil to a vacuum pump | |
| US5605445A (en) | Liquid ring machine having a relief passage for excess liquid | |
| KR100243893B1 (en) | Gear pump | |
| EP0786582B1 (en) | A bearing device for vertical rotating machine | |
| EP0391001A1 (en) | Oil-metering system | |
| JPH04228896A (en) | Oil injection type compressor | |
| JPS6039919B2 (en) | Self-pressurizing devices such as gear boxes | |
| JPH10169609A (en) | Static pressure bearing for hydraulic servo cylinder | |
| US5485823A (en) | Fuel pump having a leaked fuel conveying structure | |
| US4383502A (en) | Water-cooled internal combustion engine using hydraulic-oil lubrication and cooling-water pump | |
| JPH11336699A (en) | Water pump | |
| US6776145B1 (en) | Supercharger having pressure aided oil drain | |
| JPH0562105B2 (en) | ||
| CN220890629U (en) | Hydraulic jacking device of generator | |
| JP7403922B2 (en) | Oil delivery structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080618 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090618 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 11 Free format text: PAYMENT UNTIL: 20100618 |
|
| LAPS | Cancellation because of no payment of annual fees |