JPH0519598Y2 - - Google Patents
Info
- Publication number
- JPH0519598Y2 JPH0519598Y2 JP762888U JP762888U JPH0519598Y2 JP H0519598 Y2 JPH0519598 Y2 JP H0519598Y2 JP 762888 U JP762888 U JP 762888U JP 762888 U JP762888 U JP 762888U JP H0519598 Y2 JPH0519598 Y2 JP H0519598Y2
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- bearing member
- main shaft
- pump
- ultra
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 13
- 238000005461 lubrication Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Sliding-Contact Bearings (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案はポンプ用主軸支持構造に関する。[Detailed explanation of the idea] [Industrial application field] The present invention relates to a main shaft support structure for a pump.
従来のポンプには、第４図に示すようにケーシ
ング４１に設けられた軸受部材４２に対し、主軸
４３に設けられたスリーブ４４を回転自在に嵌合
することにより、主軸４３を支持するようにした
ものがある。このような従来例においては、揚液
中に混在する砂などの固形物に基づく摩耗を防止
するために、軸受部材４２およひびスリーブ４４
が例えばシリコンカーバイドなどのような超硬質
材料から形成されている。
In the conventional pump, the main shaft 43 is supported by rotatably fitting a sleeve 44 provided on the main shaft 43 into a bearing member 42 provided on a casing 41, as shown in FIG. There is something I did. In such a conventional example, the bearing member 42 and the cracked sleeve 44 are designed to prevent wear due to solid matter such as sand mixed in the pumped liquid.
is made of an ultra-hard material such as silicon carbide.
ところが、この種の超硬質材料は耐摩耗性に優
れてはいるが一般に脆いと言う欠点があり、ポン
プの輸送や据付などに際して衝撃を受けたりする
と、局部的応力に基づく損傷を生じ易いと言う難
点がある。
However, although this type of ultra-hard material has excellent wear resistance, it has the disadvantage of being generally brittle, and is said to be susceptible to damage due to local stress when subjected to impact during transport or installation of the pump. There are some difficulties.
本考案は上記事情のもとになされたもので、超
硬質材料から形成された軸受部材およびスリーブ
を有しながら耐衝撃性に優れたポンプ用主軸支持
構造を提供することを目的とする。 The present invention was developed under the above circumstances, and an object of the present invention is to provide a main shaft support structure for a pump that has a bearing member and a sleeve made of an ultra-hard material and has excellent impact resistance.
本考案は、ポンプのケーシングおよび主軸にそ
れぞれ設けられた超硬質材料製の軸受部材および
スリーブと軸方向に近接位置するとともにこれら
よりも小さい摺接間隙を有してそれぞれ耐衝撃性
材料から形成され、かつ相互摺接部の少なくとも
いずれか一方に形設された溝を有する第２の軸受
部材およびスリーブを具備することを特徴とする
ものである。
The present invention has a bearing member made of an ultra-hard material provided on the casing and main shaft of the pump, and a bearing member made of an impact-resistant material that is located close to the sleeve in the axial direction and has a sliding gap smaller than that of the bearing member and the sleeve. , and a second bearing member and a sleeve each having a groove formed in at least one of the mutual sliding contact portions.
本考案は上述のように構成されているので、ポ
ンプの運搬中や据付時などに受ける衝撃は摺接間
隙がより小さい第２の軸受部材およびスリーブに
よつて受け止められ、超硬質材料からなる軸受部
材およびスリーブには過大応力の集中による損傷
を生ずるようなことがない。また、第２の軸受部
材およびスリーブは相互摺接部の少なくともいず
れか一方に潤滑材用溝が設けられているので充分
な潤滑が行なわれ、摺接部間隙が小さくても円滑
な回転が可能である。さらに、揚液中に混在する
固形物などにより第２の軸受部材およびスリーブ
などが摩耗するようなことがあつても、超硬質材
料からなる軸受部材およびスリーブは耐摩耗性に
優れているので長期にわたつて安定な運転が行な
われる。
Since the present invention is constructed as described above, the impact received during transportation or installation of the pump is absorbed by the second bearing member and the sleeve, which have a smaller sliding gap, and the bearing made of ultra-hard material The member and sleeve are not susceptible to damage due to excessive stress concentrations. In addition, since the second bearing member and the sleeve are provided with a lubricant groove on at least one of the mutual sliding contact parts, sufficient lubrication is provided, and smooth rotation is possible even if the sliding contact gap is small. It is. Furthermore, even if the second bearing member and sleeve are worn out due to solids mixed in the pumped liquid, the bearing member and sleeve made of ultra-hard materials have excellent wear resistance and can last for a long time. Stable operation is maintained over a period of time.
以下、本考案を図示の一実施例について説明す
る。第１図においてポンプのケーシング１に設け
られた軸受部材２と、これと回転自在に嵌合して
主軸３に設けられたスリーブ４とは、いずれもシ
リコンカーバイドなどのような超硬質材料から形
成されており、第１の支持部５を構成している。
このような一般的構成は上記従来例におけると同
様であつてよい。
Hereinafter, the present invention will be described with reference to an illustrated embodiment. In FIG. 1, the bearing member 2 provided on the casing 1 of the pump and the sleeve 4 rotatably fitted thereto and provided on the main shaft 3 are both made of ultra-hard material such as silicon carbide. and constitutes the first support portion 5.
Such a general configuration may be the same as in the conventional example described above.
本考案においては、上記第１の支持部５におけ
る軸受部材２およびスリーブ４と軸方向に近接位
置して、ケーシング１および主軸３にそれぞれ設
けられた第２の軸受部材６およびスリーブ７から
なる第２の支持部８を備えている。これら軸受部
材６およびスリーブ７は、いずれも銅合金などの
ような金属材料、合成樹脂などのような非金属材
料、あるいはこれらの混合材料など、所望の耐衝
撃性材料から形成されており、かつこれら両者の
相互摺接部間隙は上記第１の支持部におけるより
も充分小さく形成されるとともに、相互摺接部の
少なくともいずれか一方には、軸受部材６に設け
た場合について第２図に例示するように潤滑用の
溝９が形設されている。この溝９は同図における
ような螺旋状のものに限られることはなく、環状
のもの、あるいは第３図に例示するような軸方向
のものなど適宜のものであつてよい。 In the present invention, a second bearing member 6 and a sleeve 7 are provided on the casing 1 and the main shaft 3, respectively, in close proximity to the bearing member 2 and the sleeve 4 in the first support portion 5 in the axial direction. It is provided with two support parts 8. Both the bearing member 6 and the sleeve 7 are made of a desired impact-resistant material, such as a metal material such as a copper alloy, a non-metal material such as a synthetic resin, or a mixture thereof. The gap between these mutual sliding contact parts is formed to be sufficiently smaller than that in the first support part, and at least one of the mutual sliding contact parts is provided in the bearing member 6 as shown in FIG. A groove 9 for lubrication is formed so as to. The groove 9 is not limited to a spiral shape as shown in the figure, but may be an annular groove or an axial groove as illustrated in FIG. 3 as appropriate.
上記構成によれば、初期状態においては主軸３
は主として第２の支持部８によつて支持されてい
るので、運搬中や据付時などに受ける衝撃はこの
第２の支持部８によつて受け止められ、第１の支
持部５には過大な応力が集中するようなことがな
く、したがつて損傷などを生ずるようなことはな
い。また、第２の支持部８は摺接部の間隙が充分
小さいけれども潤滑用の溝９を備えているので良
好な潤滑が行なわれ、焼付きなどの不具合を生ず
ることもない。そして、長期間にわたる運転で揚
液中における固形物などにより第２の支持部８が
摩耗するようなことがあつても、超硬質材料から
形成された第１の支持部５が著しく摩耗するよう
なことはないから運転は支障なく行なわれる。 According to the above configuration, in the initial state, the main shaft 3
is mainly supported by the second support part 8, so shocks received during transportation or installation are received by the second support part 8, and excessive impact is not applied to the first support part 5. There is no concentration of stress, and therefore no damage occurs. Further, although the second support part 8 has a sufficiently small gap between the sliding parts, since it is provided with a lubrication groove 9, good lubrication is achieved and problems such as seizure do not occur. Even if the second support part 8 were to wear out due to solid matter in the pumped liquid during long-term operation, the first support part 5 made of an ultra-hard material would not wear out significantly. There are no problems, so you can drive without any problems.
本考案によれば、上述のように超硬質材料から
形成された軸受部材及びスリーブを有しながら耐
衝撃性に優れたポンプ用主軸支持構造を提供する
ことができる。
According to the present invention, it is possible to provide a main shaft support structure for a pump that has a bearing member and a sleeve made of an ultra-hard material as described above and has excellent impact resistance.
第１図は本考案の一実施例を示す断面図、第２
図は同例に於ける要部を例示する断面図、第３図
は要部の変形例を示す断面図、第４図は従来例を
示す断面図である。
１……ケーシング、３……主軸、５……第１の
支持部、６……第２の軸受部、７……第２のスリ
ーブ、８……第２の支持部、９……溝。
Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is a cross-sectional view illustrating the main parts of the same example, FIG. 3 is a cross-sectional view showing a modification of the main parts, and FIG. 4 is a cross-sectional view showing a conventional example. DESCRIPTION OF SYMBOLS 1... Casing, 3... Main shaft, 5... First support part, 6... Second bearing part, 7... Second sleeve, 8... Second support part, 9... Groove.
Claims (1)
主軸にそれぞれ設けられた超硬質材料製の軸受部
材およびスリーブを有する主軸支持構造におい
て、上記軸受部材およびスリーブと軸方向に近接
位置するとともにこれらよりも小さい摺接間隙を
有してそれぞれ耐衝撃性材料から形成され、かつ
相互摺接部の少なくともいずれか一方に形設され
た溝を有する第２の軸受部材およびスリーブを具
備することを特徴とするポンプ用主軸支持構造。 In a main shaft support structure having a bearing member and a sleeve made of an ultra-hard material that are rotatably fitted and provided on the casing and main shaft of the pump, respectively, the main shaft support structure is located close to the bearing member and sleeve in the axial direction and is smaller than them. A pump comprising a second bearing member and a sleeve each having a sliding gap, each made of an impact-resistant material, and having a groove formed in at least one of the mutual sliding parts. Main shaft support structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP762888U JPH0519598Y2 (en) | 1988-01-26 | 1988-01-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP762888U JPH0519598Y2 (en) | 1988-01-26 | 1988-01-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01113194U JPH01113194U (en) | 1989-07-31 |
| JPH0519598Y2 true JPH0519598Y2 (en) | 1993-05-24 |
Family
ID=31212798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP762888U Expired - Lifetime JPH0519598Y2 (en) | 1988-01-26 | 1988-01-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0519598Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4093800B2 (en) * | 2002-06-07 | 2008-06-04 | 東京瓦斯株式会社 | Absorption solution pump |
| JP6527805B2 (en) * | 2015-10-07 | 2019-06-05 | 株式会社荏原製作所 | Sliding bearing device |
-
1988
- 1988-01-26 JP JP762888U patent/JPH0519598Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01113194U (en) | 1989-07-31 |
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