JPH0412255Y2 - - Google Patents
Info
- Publication number
- JPH0412255Y2 JPH0412255Y2 JP1986156100U JP15610086U JPH0412255Y2 JP H0412255 Y2 JPH0412255 Y2 JP H0412255Y2 JP 1986156100 U JP1986156100 U JP 1986156100U JP 15610086 U JP15610086 U JP 15610086U JP H0412255 Y2 JPH0412255 Y2 JP H0412255Y2
- Authority
- JP
- Japan
- Prior art keywords
- sliding member
- sliding
- shaft
- rotating shaft
- metal
- 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
- 239000002184 metal Substances 0.000 claims description 41
- 229910052751 metal Inorganic materials 0.000 claims description 41
- 239000000463 material Substances 0.000 claims description 26
- 229910010293 ceramic material Inorganic materials 0.000 claims description 15
- 239000000919 ceramic Substances 0.000 description 6
- 229910000906 Bronze Inorganic materials 0.000 description 4
- 239000010974 bronze Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 150000002739 metals Chemical class 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
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- -1 bronze metals Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Sliding-Contact Bearings (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、軸受の回転側及び固定側の摺動部材
にセラミツクス材又は超硬材を使用したすべり軸
受の、特に回転側摺動部材の固定装置に関し、横
軸ポンプや立軸ポンプにおいて清水のみならず、
スラリーを含んだポンプの取扱い水そのものを潤
滑液として用いるようにしたすべり軸受等に用い
て好適のものである。[Detailed description of the invention] (Field of industrial application) The present invention applies to sliding bearings in which ceramic materials or carbide materials are used for the sliding members on the rotating side and fixed side of the bearing, especially for the sliding members on the rotating side. Regarding the fixing device, horizontal shaft pumps and vertical shaft pumps can be used not only for fresh water, but also for
It is suitable for use in sliding bearings, etc., in which the pump handling water itself containing slurry is used as a lubricant.
（従来の技術）
従来、立軸ポンプ等で軸受用潤滑液にそのポン
プの取扱い水を利用するように構成されたもの
は、起動時、所定回転数に達して軸受室に必要な
潤滑液を供給するまでの間、ドライ運転となるた
め、ゴム軸受、樹脂軸受、等の従来の軸受では、
別途注水装置を設ける等の必要があつた。また川
砂などの硬質アルミナの固形物を含む液では、軸
受面の摩耗が大きく、短時間で取り替えを余儀な
くされていた。そのため、軸受側つまり固定側と
軸側つまり回転側の両摺動部材に、セラミツクス
材又は超硬材を使用し、例えば固定側摺動部材を
Si3N4（窒化珪素）又はSiC（炭化珪素）等のセラ
ミツクス材で構成し、回転側摺動部材WC（ダン
グステンカーバイド）等を含んだ超硬材で構成し
たものが既に開発されている。(Prior art) Conventionally, vertical shaft pumps, etc. that were configured to use the water handled by the pump as lubricant for bearings, when started, reached a predetermined rotation speed and supplied the necessary lubricant to the bearing chamber. Since the operation is dry until the
It was necessary to install a separate water injection device. Additionally, liquids containing hard alumina solids, such as river sand, cause significant wear on the bearing surface, necessitating replacement within a short period of time. Therefore, ceramic materials or carbide materials are used for both sliding members on the bearing side, that is, the fixed side, and on the shaft side, that is, the rotating side. For example, the fixed side sliding member
Types made of ceramic materials such as Si 3 N 4 (silicon nitride) or SiC (silicon carbide), and made of superhard material that includes rotating side sliding members WC (dungsten carbide), etc., have already been developed. .
上記のように摺動部材にセラミツクス材又は超
硬材を使用したすべり軸受において、特に、セラ
ミツクス材などの脆性材料よりなる回転側摺動部
材に相当するスリーブを、回転軸に固定する場
合、次に述べる第２図ないし第４図に示す装置
（手段）が採用されている。 As mentioned above, in a sliding bearing in which the sliding member is made of ceramic material or carbide material, in particular, when fixing the sleeve corresponding to the rotating side sliding member made of brittle material such as ceramic material to the rotating shaft, the following The apparatus (means) shown in FIGS. 2 to 4 described in .
第２図では、超硬材又はセラミツクス材で構成
されたスリーブ２は、回転軸１に、該スリーブ２
に穿設されたセツトビス用の錐穴２ａを貫通して
螺着されたセツトビス６を介して固定されてい
る。なお、図中、３はセラミツクス製固定側摺動
部材、４は金属製軸受ケース、５は軸受支えであ
る。 In FIG. 2, a sleeve 2 made of carbide or ceramic material is attached to the rotating shaft 1.
It is fixed via a set screw 6 which is screwed through a conical hole 2a for a set screw drilled in the hole 2a. In the figure, 3 is a ceramic fixed sliding member, 4 is a metal bearing case, and 5 is a bearing support.
また第３図では、スリーブ２は、接着剤７を介
して回転軸１に固定されており、第４図では、回
転軸１の段部１ａに当接させたスリーブ２の他端
（図で右側）を、回転軸１に螺合されたスリーブ
ナツト（軸ナツト）８によつて締め付け、スリー
ブ２を回転軸１の段部１ａに押圧して軸１に固定
するようにされている。図中、８ａは回り止めビ
スの位置を示している。 Further, in FIG. 3, the sleeve 2 is fixed to the rotating shaft 1 via an adhesive 7, and in FIG. The right side) is tightened by a sleeve nut (shaft nut) 8 screwed onto the rotating shaft 1, and the sleeve 2 is pressed against the stepped portion 1a of the rotating shaft 1 and fixed to the shaft 1. In the figure, 8a indicates the position of the locking screw.
（考案が解決しようとする問題点）
上記した従来技術においては、次のような問題
点（欠点）があつた。即ち、
第２図に示す従来例では、スリーブ２がセツト
ビス６によつて回転軸１に固定されているため、
該スリーブ２にセツトビス用の錐穴２ａを開ける
必要がある。そのため、該スリーブ２の強度や耐
衝撃力が大幅に低下するという問題点があつた。(Problems to be solved by the invention) The above-mentioned conventional technology has the following problems (defects). That is, in the conventional example shown in FIG. 2, since the sleeve 2 is fixed to the rotating shaft 1 by the set screw 6,
It is necessary to drill a conical hole 2a in the sleeve 2 for a set screw. Therefore, there was a problem that the strength and impact resistance of the sleeve 2 were significantly reduced.
また、第３図に示す従来例では、スリーブ２を
接着剤７によつて回転軸１に固定しているため、
スリーブ２が摩耗した場合などでスリーブ２を交
換する際に、スリーブ２を回転軸１から抜くこと
が困難であり、場合によつては、スリーブ２を割
る必要があるという問題点があつた。 Furthermore, in the conventional example shown in FIG. 3, since the sleeve 2 is fixed to the rotating shaft 1 with an adhesive 7,
When replacing the sleeve 2 when the sleeve 2 is worn out, it is difficult to remove the sleeve 2 from the rotating shaft 1, and in some cases, it is necessary to break the sleeve 2, which is a problem.
また第４図に示す従来例では、スリーブナツト
８の圧縮力によつてスリーブ２を回転軸１に固定
するようになつているので、スリーブ２が通常の
すべり軸受のように軸方向に長い場合には、図の
点線２ａで示すようにスリーブ２が変形して一種
の座屈現象を呈することによる曲げ応力や、回動
するスリーブナツト８から伝達される捩りモーメ
ントのために、スリーブ２が破損する可能性が強
い。また、一般にセラミツクス材や超硬材の線膨
脹係数は、金属材に比べて非常に小さいので、軸
受の温度が上つた場合には、回転軸がスリーブ２
よりも大幅に膨脹するために、スリーブナツト８
の圧縮力が解放され、スリーブ２を回転方向に固
定できなくなるという問題点があつた。 In addition, in the conventional example shown in Fig. 4, the sleeve 2 is fixed to the rotating shaft 1 by the compression force of the sleeve nut 8, so if the sleeve 2 is long in the axial direction like a normal plain bearing, In this case, the sleeve 2 is damaged due to the bending stress caused by the sleeve 2 deforming and exhibiting a kind of buckling phenomenon as shown by the dotted line 2a in the figure, and the torsional moment transmitted from the rotating sleeve nut 8. There is a strong possibility that In addition, the coefficient of linear expansion of ceramic materials and carbide materials is generally much smaller than that of metal materials, so if the temperature of the bearing rises, the rotating shaft will move closer to the sleeve.
Sleeve nut 8 for greater expansion than
There was a problem in that the compressive force of the sleeve 2 was released, making it impossible to fix the sleeve 2 in the rotational direction.
本考案は、上記した問題点を解決することを技
術的課題としている。 The technical objective of the present invention is to solve the above-mentioned problems.
（問題点を解決するための手段）
本考案は、上記した従来技術の問題点を解決す
るために、セラミツクス材又は超硬材を使用した
すべり軸受の回転側摺動部材において、摺動部材
リングと金属リングとを軸上に交互に配置し、こ
れらの両リングを軸ナツトの圧縮力により一括し
て固定するようにし、上記金属リングを回転軸よ
りも線膨脹係数の大きな材料で構成し、該金属リ
ングと上記摺動部材リングとの熱膨脹量の合計が
回転軸の熱膨脹量とほぼ同一となるようにしたこ
とを特徴としている。(Means for Solving the Problems) In order to solve the problems of the prior art described above, the present invention provides a sliding member ring in a rotating sliding member of a sliding bearing using ceramic material or carbide material. and metal rings are arranged alternately on the shaft, and both rings are fixed together by the compressive force of the shaft nut, and the metal ring is made of a material having a larger coefficient of linear expansion than the rotating shaft, The present invention is characterized in that the total amount of thermal expansion of the metal ring and the sliding member ring is approximately the same as the amount of thermal expansion of the rotating shaft.
（作用）
本考案は上記のように構成されているので、軸
ナツトを一括して締めることにより、各摺動部材
リングは、それらの間に介在された金属リングを
介して、一連の摺動部材の一端が係合している回
転軸の係合段部に向かつて押圧される。(Function) Since the present invention is constructed as described above, by tightening the shaft nuts all at once, each sliding member ring can be moved through a series of sliding members through the metal ring interposed between them. One end of the member is pressed toward the engagement step of the rotating shaft with which it is engaged.
上記のように摺動部材は金属リングを介してリ
ング状に分割されているので、各摺動部材リング
は軸方向の長さが短かくなつており、従つて軸ナ
ツトの一括締め付け作用力に対しても、軸方向に
長い従来のもの（第４図）におけるような座屈に
よる曲げ応力は発生せず、圧縮応力の力が作用す
る。ここで、上記の摺動部材を構成するセラミツ
クス材や超硬材は、金属以上の許容圧縮応力を有
するので、上記のような圧縮応力のみで破損する
可能性は殆んどなく、摺動部材は回転軸に安全に
固定される。 As mentioned above, since the sliding member is divided into rings through the metal ring, the length of each sliding member ring in the axial direction is shortened, so that the collective tightening force of the shaft nut is reduced. In contrast, bending stress due to buckling does not occur as in the conventional axially long one (FIG. 4), but compressive stress acts. Here, since the ceramic materials and carbide materials that constitute the above-mentioned sliding members have an allowable compressive stress higher than that of metals, there is almost no possibility that the above-mentioned compressive stress alone will cause damage, and the sliding members is securely fixed to the rotating shaft.
金属リング、特に軸ナツトと当接する金属リン
グをキーを介して軸方向にのみ摺動できるよう
に、つまり回転できないように構成すれば、軸ナ
ツトを強く締めても、該軸ナツトに接触した金属
リングが回転しないため、摺動部材には捩りモー
メントが作用せず、圧縮力だけが作用する。 If the metal ring, especially the metal ring that comes into contact with the shaft nut, is constructed so that it can slide only in the axial direction through the key, that is, cannot rotate, then even if the shaft nut is tightened strongly, the metal ring in contact with the shaft nut will Since the ring does not rotate, no torsional moment acts on the sliding member, only compressive force acts on it.
また、金属リングの材料として回転軸よりも線
膨脹係数が大きな材料を使用し、金属リングと摺
動部材リングとの熱膨脹量の合計を回転軸とほぼ
同一となるようにしているので、軸受が温度上昇
しても軸ナツトによる締付力が一定に保たれ、摺
動部材の回り止めが確実になる。 In addition, a material with a larger coefficient of linear expansion than the rotating shaft is used for the metal ring, and the total amount of thermal expansion of the metal ring and the sliding member ring is almost the same as that of the rotating shaft, so the bearing Even when the temperature rises, the tightening force of the shaft nut remains constant, ensuring that the sliding member is prevented from rotating.
（実施例） 次に、本考案の実施例を図面と共に説明する。(Example) Next, embodiments of the present invention will be described with reference to the drawings.
第１図は、本考案の一実施例を示すすべり軸受
の要部縦断面図であつて、図中、第２図に記載し
た符号と同一の符号は同一ないし同類部分を示す
ものとする。 FIG. 1 is a longitudinal cross-sectional view of a main part of a sliding bearing showing an embodiment of the present invention, and in the figure, the same reference numerals as those shown in FIG. 2 indicate the same or similar parts.
図において、セラミツクス材又は超硬材で構成
された固定側（軸受側）摺動部材３は、焼嵌め等
によつて金属製軸受ケース４に嵌め込まれ、軸受
支え５にボルト４ａで取付けられていることは従
来のもの（第２図）と変りはない。 In the figure, a fixed side (bearing side) sliding member 3 made of ceramic material or carbide material is fitted into a metal bearing case 4 by shrink fitting or the like, and is attached to a bearing support 5 with bolts 4a. There is no difference from the conventional one (Figure 2).
この考案は、回転側（軸側）摺動部材の取付け
に特徴を有し、この実施例では、軸方向の幅の狭
いリング状の超硬材又はセラミツクス材からなる
摺動部材リング１２と金属リング１３とが交互に
複数個（図ではそれぞれ４個と５個）回転軸１上
に並べられており、両端部には、何れも金属リン
グが配置されている。そしてこれら両端部の一方
の（図で左端の）金属リング１３ａは回転軸１の
係合段部１ａに当接し、他方の（図で右端の）金
属リング１３ｂは軸ナツトに相当するスリーブナ
ツト１４に当接している。これらの金属リング１
３の材料としては、セラミツクス材や超硬材との
摺動性が良好なBC系金属つまりブロンズ系金属
等が用いられる。 This invention is characterized by the attachment of the rotating side (shaft side) sliding member, and in this embodiment, the sliding member ring 12 is made of a ring-shaped carbide or ceramic material with a narrow width in the axial direction, and a metal A plurality of rings 13 (four and five in the figure, respectively) are alternately arranged on the rotating shaft 1, and metal rings are arranged at both ends. One of the metal rings 13a (the left end in the figure) of these two ends comes into contact with the engagement step 1a of the rotating shaft 1, and the other metal ring 13b (the right end in the figure) contacts the sleeve nut 14 corresponding to the shaft nut. is in contact with. these metal rings 1
As the material 3, a BC metal, that is, a bronze metal, etc., which has good sliding properties with ceramic materials and carbide materials, is used.
上記のように、金属リング１３にブロンズ系金
属を用い、回転軸１に炭素綱を用い、摺動部材リ
ング１２にセラミツクス又は超硬合金を用いた場
合のそれぞれの線膨脹係数は次の通りである。 As mentioned above, when the metal ring 13 is made of bronze metal, the rotating shaft 1 is made of carbon steel, and the sliding member ring 12 is made of ceramic or cemented carbide, the respective linear expansion coefficients are as follows. be.
金属リング材であるブロンズ系金属の線膨脹
係数 約17×10-6
軸材である炭素綱の線膨脹係数 約11×10-6
摺動部材リング材であるセラミツクスの線膨
脹係数 約４×10-6
超硬合金の線膨脹係数 約５×10-6
上記のように、線膨脹係数は＞＞
従つて、との厚さの比率を適当にとること
によつて、膨脹量を
＋＝
にすることができる。 Linear expansion coefficient of bronze metal, which is the metal ring material, approximately 17×10 -6 Linear expansion coefficient of carbon steel, which is the shaft material, approximately 11×10 -6 Linear expansion coefficient of ceramics, which is the sliding member ring material, approximately 4×10 -6 Coefficient of linear expansion of cemented carbide Approximately 5×10 -6 As mentioned above, the coefficient of linear expansion is can do.
更に、ブロンズ系金属より線膨脹係数の高い
Al系合金（線膨脹係数約21×10-6）を用いれば、
セラミツクスあるいは超硬部材の比率を高めるこ
とができる。 Furthermore, it has a higher coefficient of linear expansion than bronze metals.
If an Al-based alloy (linear expansion coefficient approximately 21×10 -6 ) is used,
The ratio of ceramics or carbide members can be increased.
上記金属リング１３は、回転軸１のキー溝１０
とキー１１とにより軸方向にのみ移動できるよう
に回転を固定されている。 The metal ring 13 is connected to the keyway 10 of the rotating shaft 1.
and the key 11, the rotation is fixed so that it can only move in the axial direction.
この実施例によれば、スリーブナツト１４を強
く締めても、該スリーブナツト１４に接触した金
属リング１３ｂが回転しないため、各摺動部材リ
ング１２には、捩りモーメントは作用せず、圧縮
力だけが作用する。また摺動部材リング１２の軸
方向長さが短いため、これらの摺動部材リング１
２に座屈による曲げ応力は発生せず、圧縮応力の
みが作用するが、セラミツクスや超硬材は金属以
上の許容圧縮応力を有するので、圧縮応力のみで
破損する可能性は殆んどなく、安全に固定するこ
とが可能となる。 According to this embodiment, even if the sleeve nut 14 is strongly tightened, the metal ring 13b in contact with the sleeve nut 14 does not rotate, so no torsional moment acts on each sliding member ring 12, and only compressive force is applied. acts. In addition, since the axial length of the sliding member rings 12 is short, these sliding member rings 1
2. Bending stress due to buckling does not occur, only compressive stress acts, but ceramics and carbide materials have an allowable compressive stress higher than that of metals, so there is almost no possibility of damage due to compressive stress alone. It becomes possible to fix it safely.
更に、金属リング１３の材料として、回転軸１
よりも線膨脹係数が大きな材料を使用し、金属リ
ング１３と摺動部材リング１２との熱膨脹量の合
計が回転軸１とほぼ同一となるようにしているの
で、軸受が温度上昇した場合にも、スリーブナツ
ト１４による締付力を一定に保つことができ、摺
動部材の回り止めを確実なものにすることができ
る。 Furthermore, as the material of the metal ring 13, the rotating shaft 1
A material with a linear expansion coefficient larger than that of the bearing is used so that the total amount of thermal expansion of the metal ring 13 and the sliding member ring 12 is almost the same as that of the rotating shaft 1, so even if the temperature of the bearing increases. , the tightening force by the sleeve nut 14 can be kept constant, and the rotation of the sliding member can be ensured.
なお、上記した実施例において、摺動部材を４
個の摺動部材リング１２によつて構成した構造に
ついて説明したが、摺動部材リング１２の個数は
軸受の必要長さから決つてくるものであり、従つ
て、１個で構成しても、数十個で構成してもよ
い。 In addition, in the above-mentioned embodiment, the sliding member is 4
Although the structure composed of two sliding member rings 12 has been described, the number of sliding member rings 12 is determined by the required length of the bearing, so even if it is constructed with one sliding member ring 12, It may be composed of several dozen pieces.
また本考案のすべり軸受は、ポンプの水中すべ
り軸受のみならず、一般の回転機械の水潤滑され
るすべり軸受に使用できることは勿論である。ま
た、通常セラミツクス材を固定側摺動部材に、超
硬材を回転側摺動部材にそれぞれ用いるようにし
たものが多いが、固定側摺動部材に超硬材をまた
回転側摺動部材にセラミツクス材を用いるように
することも勿論可能であり、また両摺動部材を同
様の材料で構成することも可能である。 It goes without saying that the sliding bearing of the present invention can be used not only for submerged sliding bearings for pumps, but also for water-lubricated sliding bearings for general rotating machines. In addition, although ceramics are usually used for the fixed side sliding member and carbide material is used for the rotating side sliding member, carbide is used for the fixed side sliding member and also for the rotating side sliding member. Of course, it is also possible to use a ceramic material, and it is also possible to construct both sliding members from the same material.
（考案の効果）
以上述べたように、本考案によれば、セラミツ
クス材又は超硬材を回転側摺動部材として使用し
たすべり軸受において、該回転側摺動部材を摺動
部材リングと金属リングとを交互に軸上に配置し
て、これらを軸ナツトの圧縮力により一括して固
定するようにしたことにより、脆性材料で構成さ
れた回転側摺動部材である軸スリーブに、セツト
ビス用錐穴等の強度を低下させるような加工を施
すことなく、安全確実に回転軸に固定することが
できる。また回転側摺動部材である軸スリーブの
交換も容易であり、摺動部材の形状もリング状を
なしていてシンプルであるため、軸受のコストを
低減することも可能である。(Effects of the invention) As described above, according to the invention, in a sliding bearing in which a ceramic material or a carbide material is used as a rotating side sliding member, the rotating side sliding member is connected to a sliding member ring and a metal ring. By arranging them alternately on the shaft and fixing them all together by the compressive force of the shaft nut, the shaft sleeve, which is a rotating sliding member made of brittle material, has a drill for the set screw. It can be safely and reliably fixed to the rotating shaft without performing any processing that would reduce the strength of holes or the like. Furthermore, the shaft sleeve, which is the rotating sliding member, is easy to replace, and the sliding member is ring-shaped and simple, so it is possible to reduce the cost of the bearing.
また、上記金属リングを回転軸よりも線膨脹係
数の大きな材料で構成し、該金属リングと上記摺
動部材リングとの熱膨脹量の合計が回転軸の熱膨
脹量とほぼ同一となるようにしたことにより、軸
受が温度上昇した場合でも、軸ナツトによる締付
力を一定に保つことができ、摺動部材の回り止め
を確実なものにすることができる。 Further, the metal ring is made of a material having a larger coefficient of linear expansion than the rotating shaft, and the total amount of thermal expansion of the metal ring and the sliding member ring is approximately the same as the amount of thermal expansion of the rotating shaft. Therefore, even if the temperature of the bearing increases, the tightening force of the shaft nut can be kept constant, and the sliding member can be prevented from rotating reliably.
第１図は本考案のすべり軸受の要部縦断面図、
第２図ないし第４図は異なつた従来例を示す要部
縦断面図である。
１……回転軸、３……固定型摺動部材、４……
金属製軸受ケース、１０……キー溝、１１……キ
ー、１２……摺動部材リング、１３……金属リン
グ。
Figure 1 is a vertical sectional view of the main parts of the sliding bearing of the present invention.
2 to 4 are longitudinal sectional views of main parts showing different conventional examples. 1... Rotating shaft, 3... Fixed sliding member, 4...
Metal bearing case, 10... key groove, 11... key, 12... sliding member ring, 13... metal ring.
Claims (1)
したすべり軸受の回転側摺動部材において、摺
動部材リングと金属リングとを軸上に交互に配
置し、こられの両リングを軸ナツトの圧縮力に
より一括して固定するようにし、上記金属リン
グを回転軸よりも線膨脹係数の大きな材料で構
成し、該金属リングと上記摺動部材リングとの
熱膨脹量の合計が回転軸の熱膨脹量とほぼ同一
となるようにしたことを特徴とするすべり軸
受。 ２ 上記金属リングは、回転軸に軸方向にのみ移
動可能に取付けられている実用新案登録請求の
範囲第１項記載のすべり軸受。 ３ 上記金属リングは、摺動部材リングと金属リ
ングとを交互に配置した一連の摺動部材の両端
に配置されている実用新案登録請求の範囲第１
項記載のすべり軸受。[Scope of Claim for Utility Model Registration] 1. In a sliding member on the rotating side of a sliding bearing using ceramic material or carbide material as a sliding member, sliding member rings and metal rings are arranged alternately on the shaft, Both rings are fixed together by the compressive force of the shaft nut, and the metal ring is made of a material with a larger coefficient of linear expansion than the rotating shaft, and the amount of thermal expansion between the metal ring and the sliding member ring is A sliding bearing characterized in that the sum of these is approximately the same as the amount of thermal expansion of the rotating shaft. 2. The sliding bearing according to claim 1, wherein the metal ring is attached to the rotating shaft so as to be movable only in the axial direction. 3. The metal ring is arranged at both ends of a series of sliding members in which sliding member rings and metal rings are arranged alternately.
Plain bearings as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986156100U JPH0412255Y2 (en) | 1986-10-14 | 1986-10-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986156100U JPH0412255Y2 (en) | 1986-10-14 | 1986-10-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6362624U JPS6362624U (en) | 1988-04-25 |
| JPH0412255Y2 true JPH0412255Y2 (en) | 1992-03-25 |
Family
ID=31077403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986156100U Expired JPH0412255Y2 (en) | 1986-10-14 | 1986-10-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0412255Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH045768Y2 (en) * | 1984-12-28 | 1992-02-18 |
-
1986
- 1986-10-14 JP JP1986156100U patent/JPH0412255Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6362624U (en) | 1988-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3428374A (en) | Self-lubricating bearing | |
| CA1120982A (en) | Water lubricated sleeve bearing | |
| US5971620A (en) | Rolling element bearing comprising a zirconium material | |
| US4363631A (en) | Structural arrangement for oxide ceramic shafts | |
| KR100544836B1 (en) | Rolling element bearing having improved wear characteristics, and rolling element for such bearing | |
| JPH0412255Y2 (en) | ||
| JPS6030822A (en) | Ceramic bearing | |
| US4754494A (en) | Beryllium based, wear-resistant material for bearings and the like | |
| JPS649493B2 (en) | ||
| EP0492605A1 (en) | Shaft sleeve made of ceramics | |
| JPH0560128A (en) | Underwater bearing device | |
| JP2503969B2 (en) | Ceramic bearing and method of manufacturing the same | |
| DE19524510A1 (en) | Fluid-lubricated plain bearing | |
| JPH10146605A (en) | Sleeve roll | |
| JP2711434B2 (en) | Slide bearing holding structure | |
| JPH0211617Y2 (en) | ||
| JPH021533Y2 (en) | ||
| JPH01224520A (en) | Bearing device of hydraulic machinery | |
| JPH07224836A (en) | Bearing | |
| JPS6345598Y2 (en) | ||
| JPH021520Y2 (en) | ||
| JPS6084423A (en) | Sliding bearing | |
| SU1051212A1 (en) | Automatic elevator for running drill pipes in and out | |
| Jahanmir | Tribology Issues Related to Machining and Performance of Ceramic Bearings | |
| JPS6037466Y2 (en) | bearing |