JPH04121370U - Electric motor bearing structure - Google Patents
Electric motor bearing structureInfo
- Publication number
- JPH04121370U JPH04121370U JP3336591U JP3336591U JPH04121370U JP H04121370 U JPH04121370 U JP H04121370U JP 3336591 U JP3336591 U JP 3336591U JP 3336591 U JP3336591 U JP 3336591U JP H04121370 U JPH04121370 U JP H04121370U
- Authority
- JP
- Japan
- Prior art keywords
- oil
- mist
- lubricating oil
- lubricating
- bearing structure
- 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
- 239000003921 oil Substances 0.000 claims abstract description 121
- 239000010687 lubricating oil Substances 0.000 claims abstract description 34
- 239000003595 mist Substances 0.000 claims abstract description 19
- 239000000314 lubricant Substances 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Landscapes
- General Details Of Gearings (AREA)
- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
(57)【要約】
【目的】 潤滑油が電動機の内部や外部に漏れるのを防
止することにある。
【構成】 潤滑油とそのミストに対しての油溜部分と排
油口をそれぞれ独立に分離させて排油させるよう、内カ
バと外カバに油溜部分を設け、更に軸受のハウジングに
排油口を設けたものである。
(57) [Summary] [Purpose] The purpose is to prevent lubricating oil from leaking inside or outside the motor. [Structure] Oil sump parts are provided on the inner cover and outer cover so that the oil sump parts and oil drain ports for lubricating oil and its mist are separated and drained independently, and an oil sump part is provided in the bearing housing. It has a mouth.
Description
【０００１】0001
本考案は、潤滑油およびそのミストの漏れを防止するための電動機の軸受構造 に関するものである。 This invention is an electric motor bearing structure that prevents lubricating oil and its mist from leaking. It is related to.
【０００２】0002
従来の電動機における油潤滑方式は図２に示される。 図２はその一例を示す軸受構造囲りの断面図である。 図２において、１は軸、２，３は油切りで軸受６を両側から挾むようにして軸 １に嵌着されている。７は締付ナットで、油切り２，３や軸受６がスラスト方向 に動かないようにするために軸１に螺着されている。４は外カバで電動機の外部 側に取付けられ、５は内カバで電動機の内部側に取付けられている。８は軸受６ のハウジングで、ハウジング８に給油管９が取付けられている。14は油溜タンク で、給油管９より供給された潤滑油は図中の矢印に示すような循路を経てこのタ ンク内に戻って来て、最後に油溜タンク14の排油口14ａに結合された排油管15か ら排出される。 次に従来の軸受構造における油潤滑方式について述べる。 給油装置などにより供給された潤滑油は、まずハウジング８に取付けられてい る給油管９に導かれる。給油管９に導かれた潤滑油は、給油管９に設けられたノ ズル孔から軸受６に向かって噴射供給される。軸受６に噴射供給された潤滑油は 、油切り２の外周と外カバ４の内周間に設けられた環状空間２ａおよび油切り３ の外周と外カバ５の内周間に設けられた環状空間３ａにほぼ全量が導かれ、その 後各環状空間２ａ，３ａに導通している排油孔４ｂと８ｂおよび排油孔５ｂと８ ｂから、ハウジング８に設けられた油溜部８ａに導かれる。 もう一方、外カバ４の内周と油切り２の外周間のわずかな隙間から滲み出た潤 滑油とそのミストは外カバ４に設けられた環状空間４ａに導かれ、その後環状空 間４ａに導通している排油孔４ｃから油溜部４ｄに導かれる。 上記と同様に、内カバ５の内周と油切り３の外周間のわずかな隙間から滲み出 た潤滑油とそのミストは、内カバ５に設けられた環状空間５ａに導かれ、その後 環状空間５ａに導通している排油孔５ｃから油溜部５ｄに導かれる。 ハウジングの油溜部８ａと外カバの油溜部４ｄおよび内カバの油溜部５ｄは互 いに貫通しており、これらの油溜部に導かれた潤滑油は合流して外カバ４に設け られた排油孔４ｅから油溜タンク14へと導かれ、最後に油溜タンク14の排油口14 ａとこれに結合している排油管15を経て電動機外部の給油装置に環流される。 A conventional oil lubrication system for electric motors is shown in FIG. FIG. 2 is a cross-sectional view of the bearing structure and its surroundings, showing one example thereof. In Fig. 2, 1 is a shaft, 2 and 3 are oil drainers that sandwich the bearing 6 from both sides of the shaft. It is attached to 1. 7 is a tightening nut, and the oil drains 2 and 3 and bearing 6 are in the thrust direction. It is screwed onto shaft 1 to prevent it from moving. 4 is an outer cover that covers the outside of the motor. 5 is an inner cover that is attached to the inside of the motor. 8 is bearing 6 A fuel supply pipe 9 is attached to the housing 8. 14 is oil sump tank The lubricating oil supplied from the oil supply pipe 9 passes through the circulation path as shown by the arrow in the figure. The oil drain pipe 15 returns to the tank and is finally connected to the oil drain port 14a of the oil sump tank 14. is discharged. Next, we will discuss the oil lubrication system in conventional bearing structures. The lubricating oil supplied by the oil supply device etc. is first attached to the housing 8. The oil is guided to the oil supply pipe 9. The lubricating oil led to the oil supply pipe 9 passes through a nozzle provided in the oil supply pipe 9. It is injected and supplied toward the bearing 6 from the nozzle hole. The lubricating oil injected to the bearing 6 is , an annular space 2a provided between the outer circumference of the oil drainer 2 and the inner circumference of the outer cover 4, and the oil drainer 3. Almost the entire amount is introduced into the annular space 3a provided between the outer periphery of the outer cover 5 and the inner periphery of the outer cover 5, and the Oil drain holes 4b and 8b and oil drain holes 5b and 8 are connected to the respective rear annular spaces 2a and 3a. b, the oil is guided to an oil reservoir 8a provided in the housing 8. On the other hand, the moisture seeping out from the slight gap between the inner periphery of the outer cover 4 and the outer periphery of the oil drainer 2 The oil and its mist are guided into the annular space 4a provided in the outer cover 4, and then into the annular space 4a. The oil is led to the oil reservoir 4d from the oil drain hole 4c which is in communication with the gap 4a. Similarly to the above, seepage from the slight gap between the inner periphery of the inner cover 5 and the outer periphery of the oil drainer 3. The lubricating oil and its mist are guided to an annular space 5a provided in the inner cover 5, and then The oil is led to the oil reservoir 5d from the oil drain hole 5c which is in communication with the annular space 5a. The oil sump portion 8a of the housing, the oil sump portion 4d of the outer cover, and the oil sump portion 5d of the inner cover are mutually connected. The lubricating oil led to these oil reservoirs merges and is provided in the outer cover 4. The oil is led to the oil sump tank 14 through the drain hole 4e, and finally the oil drain port 14 of the oil sump tank 14. The oil is returned to the oil supply device outside the motor through the oil drain pipe 15 connected to the oil drain pipe 15 connected thereto.
【０００３】0003
しかし、かような構造における油潤滑方式では次のような欠点がある。 ハウジングの油溜部と外カバ油溜部および内カバ油溜部は互いに貫通している 。しかも比重の大きさの関係上、潤滑油自体は上記油溜部分の下部に溜り、潤滑 油のミストは該油溜部分の上部すなわち潤滑油の上層部に溜ることになる。 このため、上記油溜部分の潤滑油を排油孔から排出しようとする場合、油溜部 分の下部に溜っている潤滑油に対しては十分な排出は実施できるが、潤滑油の上 層部に溜っている潤滑油のミストに対してはほとんど排出することができない。 この結果、排出されないまま残留した上記潤滑油のミストは、軸と外カバ間お よび軸と内カバ間のわずかな隙間から滲み出し、結局は潤滑油が電動機の内部や 外部に漏れてしまうことになる。 本考察は上述した点に鑑みて創案されたもので、その目的とするところは、互 いにそれぞれが遊離独立した２種類の油溜部分と排油口を軸受け構造に具備させ 、一方の油溜部分の排油口からは主として潤滑油が排出できるようにし、他方の 油溜部分の排油口からは主として潤滑油のミストが排出できるようにしたもので ある。 However, the oil lubrication method in such a structure has the following drawbacks. The housing oil sump, outer cover oil sump, and inner cover oil sump penetrate each other. . Furthermore, due to its specific gravity, the lubricating oil itself collects at the bottom of the oil sump, causing lubrication. The oil mist accumulates in the upper part of the oil sump, that is, in the upper layer of lubricating oil. Therefore, when attempting to drain the lubricating oil in the oil sump section from the oil drain hole, the oil sump section must be Although it is possible to sufficiently drain the lubricating oil that has accumulated at the bottom of the It is almost impossible to discharge the lubricating oil mist accumulated in the layer. As a result, the lubricating oil mist that remains without being drained is removed between the shaft and the outer cover. The lubricating oil oozes out from the small gap between the shaft and the inner cover, and eventually leaks into the inside of the motor and the lubricating oil. It will leak outside. This study was devised in view of the above points, and its purpose is to The bearing structure is equipped with two types of oil sump parts and oil drain ports, each of which is separate and independent. , the lubricating oil is mainly discharged from the oil drain port of one oil sump, and the other Mainly lubricant mist is discharged from the oil drain port in the oil sump. be.
【０００４】0004
つまり、その目的を達成するための手段は、油潤滑方式の軸受構造において、 潤滑油およびそのミストの電動機内・外部への漏れを防止せんがために、互いに それぞれが遊離独立している２種類の油溜部分を内カバと外カバに設け、さらに 排油口を軸受のハウジングに設け、一方の油溜部分と排油口からは主として潤滑 油が排出できるような構造とし、他方の油溜部分と排油口からは主として潤滑油 のミストが排出できるような構造とし、潤滑油とそのミストの排出口をそれぞれ 分離させて各々の排出能力を高めたものである。 In other words, the means to achieve this goal is to use an oil-lubricated bearing structure. To prevent lubricating oil and its mist from leaking into and outside the motor, Two types of oil sump parts, each free and independent, are provided on the inner cover and outer cover, and An oil drain port is provided in the bearing housing, and lubrication is mainly carried out from one oil sump and oil drain port. The structure is such that oil can be drained, and lubricating oil is mainly removed from the other oil sump and oil drain port. The structure is such that the mist can be discharged, and the lubricant and the mist discharge ports are respectively They are separated to increase the discharge capacity of each.
その作用は、次に述べる実施例で併せて説明する。 以下、本考案の一実施例を図面に基づいて詳述する。 Its operation will be explained in the following examples. Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.
【０００５】[0005]
図４は本考案の一実施例を示す軸受構造囲りの断面図であり、図中、図２と同 符号のものは同じ機能を有す。 図１において、10は配管継手で、外カバ４と内カバ５にそれぞれ取付けられ、 各配管継手10の他端には排油管12が接続されている。また、配管継手11はハウジ ング８に取付けられており、この配管継手11の他端には排油管13が接続されてい る。 このようにして構成された軸受構造での油潤滑方式について詳述する。 給油装置などにより供給された潤滑油は、まず、ハウジング８に取付けられて いる給油管９に導かれる。 給油管９に導かれた潤滑油は、給油管９に設けられたノズル孔から軸受６に向 かって噴射供給される。軸受６に噴射供給された潤滑油は、油切り２の外周と外 カバ４の内周間に設けられた環状空間２ａ、および油切り３の外周と外カバ５の 内周間に設けられた環状空間３ａにほぼ全量が導かれ、その後各環状空間２ａ， ３ａに導通している排油孔４ｂと８ｂおよび排油孔５ｂと８ｂから、ハウジング ８に設けられた油溜部８ａに導かれる。 もう一方、外カバ４の内周と油切り２の外周間のわずかな隙間から滲み出た潤 滑油とそのミストは、外カバ４に設けられた環状空間４ａに導かれ、その後環状 空間４ａに導通している油溜部４ｃに導かれる。 FIG. 4 is a cross-sectional view of the surrounding bearing structure showing one embodiment of the present invention. Those with symbols have the same function. In FIG. 1, 10 is a piping joint, which is attached to the outer cover 4 and the inner cover 5, respectively. An oil drain pipe 12 is connected to the other end of each pipe joint 10. Also, piping joint 11 is connected to the housing. The oil drain pipe 13 is connected to the other end of this piping joint 11. Ru. The oil lubrication method for the bearing structure constructed in this manner will be described in detail. Lubricating oil supplied by an oil supply device etc. is first attached to the housing 8. It is guided to the fuel supply pipe 9. The lubricating oil led to the oil supply pipe 9 is directed toward the bearing 6 from a nozzle hole provided in the oil supply pipe 9. Once supplied by injection. The lubricating oil injected to the bearing 6 is distributed around the outer circumference of the oil sluice 2 and An annular space 2a provided between the inner periphery of the cover 4 and the outer periphery of the oil pan 3 and the outer cover 5. Almost the entire amount is guided to the annular space 3a provided between the inner peripheries, and then each annular space 2a, From the oil drain holes 4b and 8b and the oil drain holes 5b and 8b which are connected to the housing The oil is guided to an oil reservoir 8a provided at 8. On the other hand, the moisture seeping out from the slight gap between the inner periphery of the outer cover 4 and the outer periphery of the oil drainer 2 The lubricating oil and its mist are guided into the annular space 4a provided in the outer cover 4, and then into the annular space 4a. The oil is guided to an oil sump 4c that communicates with the space 4a.
【０００６】 上記と同様に、内カバ５の内周と油切り３の外周間のわずかな隙間から滲み出 た潤滑油とそのミストは、内カバ５に設けられた環状空間５ａに導かれ、その後 該環状空間５ａに導通している油溜部５ｃに導かれる。 ハウジングの油溜部８ａと外カバの油溜部４ｃおよび内カバの油溜部５ｃは互 いにそれぞれが遊離独立しており、このためハウジングの油溜部８ａには主とし て潤滑油が溜まり、外カバ４の油溜部４ｃと内カバ５の油溜部５ｃには主として 潤滑油のミストが溜まることになる。 ハウジング油溜部８ａの潤滑油は、排油口８ｃから配管継手11に導かれ、その 後前記配管継手に接続された排油管13を通過して、電動機外部の給油装置へと環 流される。 もう一方の外カバ油溜部４ｃと内カバ油溜部５ｃにおける潤滑油のミストは、 各油溜部に結合された配管継手10とこの配管継手10に各々接続された排油管12を 通過して、電動機外部の給油装置に環流される。[0006] Similarly to the above, seepage from the slight gap between the inner periphery of the inner cover 5 and the outer periphery of the oil drainer 3. The lubricating oil and its mist are guided to an annular space 5a provided in the inner cover 5, and then The oil is guided to an oil reservoir portion 5c which is in communication with the annular space 5a. The oil sump portion 8a of the housing, the oil sump portion 4c of the outer cover, and the oil sump portion 5c of the inner cover are mutually connected. In fact, each oil sump part 8a of the housing is free and independent. The lubricating oil is mainly stored in the oil reservoir 4c of the outer cover 4 and the oil reservoir 5c of the inner cover 5. Lubricating oil mist will accumulate. The lubricating oil in the housing oil sump 8a is led from the oil drain port 8c to the piping joint 11, and then After that, it passes through the oil drain pipe 13 connected to the piping joint and is circulated to the oil supply system outside the motor. be swept away. The lubricating oil mist in the other outer cover oil reservoir 4c and inner cover oil reservoir 5c is A piping joint 10 connected to each oil sump and an oil drain pipe 12 connected to each piping joint 10. The oil passes through the motor and is recycled to the oil supply system outside the motor.
【０００７】[0007]
以上説明した如く本考案によれば、潤滑油とそのミストに対しての油溜部分と 排油口をそれぞれ独立に分離させて排油を行うことにより、潤滑油が電動機の内 部や外部に漏れることを防止できた。 As explained above, according to the present invention, there is no oil sump for lubricating oil and its mist. By separating the oil drain ports and draining oil independently, lubricating oil can be removed from the inside of the motor. It was possible to prevent leakage to the inside or outside.
【０００８】[0008]
【図１】図１は本考案の一実施例を示す軸受構造囲りの
断面図である。FIG. 1 is a sectional view of a bearing structure surrounding one embodiment of the present invention.
【図２】図２は従来の一例を示す軸受構造囲りの断面図
である。FIG. 2 is a sectional view of a bearing structure and its surroundings showing an example of a conventional bearing structure.
【０００９】[0009]
１ 軸 ２ 油切り ３ 油切り ４ 外カバ ５ 内カバ ６ 軸受 ７ 締付ナット ８ ハウジング ９ 給油管 10 配管継手 11 配管継手 12 排油管 13 排油管 14 油溜タンク 15 排油管 1 axis 2 Drain the oil 3 Drain the oil 4 Outer cover 5 Inner cover 6 Bearings 7 Tightening nut 8 Housing 9 Oil supply pipe 10 Piping fittings 11 Piping fittings 12 Oil drain pipe 13 Oil drain pipe 14 Oil sump tank 15 Oil drain pipe
Claims (1)
て、潤滑油およびそのミストの外部への漏れを防止する
ために、互いにそれぞれが遊離独立している２種類の油
溜部分を内カバと外カバに設け、さらに排油口を軸受の
ハウジングに設け、一方の油溜部分の排油口からは主と
して潤滑油が排出できるような構造とし、他方の油溜部
分の排油口からは主として潤滑油のミストが排出できる
よう構成され、潤滑油とそのミストの排出口をそれぞれ
分離させたことを特徴とする電動機の軸受構造。Claim 1: In an oil-lubricated motor bearing structure, in order to prevent lubricant oil and its mist from leaking to the outside, two types of oil reservoir parts, each of which is freely independent, are provided with an inner cover and an outer cover. The cover is provided with an oil drain port, and an oil drain port is also provided in the housing of the bearing.The structure is such that lubricating oil can mainly be discharged from the oil drain port of one oil sump section, and lubricating oil is mainly drained from the oil drain port of the other oil sump section. A bearing structure for an electric motor configured to allow oil mist to be discharged, and characterized in that the lubricating oil and the mist discharge ports are separated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3336591U JPH04121370U (en) | 1991-04-12 | 1991-04-12 | Electric motor bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3336591U JPH04121370U (en) | 1991-04-12 | 1991-04-12 | Electric motor bearing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04121370U true JPH04121370U (en) | 1992-10-29 |
Family
ID=31916052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3336591U Pending JPH04121370U (en) | 1991-04-12 | 1991-04-12 | Electric motor bearing structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04121370U (en) |
-
1991
- 1991-04-12 JP JP3336591U patent/JPH04121370U/en active Pending
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