JPS6073123A - Combined sliding member - Google Patents
Combined sliding memberInfo
- Publication number
- JPS6073123A JPS6073123A JP18064983A JP18064983A JPS6073123A JP S6073123 A JPS6073123 A JP S6073123A JP 18064983 A JP18064983 A JP 18064983A JP 18064983 A JP18064983 A JP 18064983A JP S6073123 A JPS6073123 A JP S6073123A
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- sliding
- sliding member
- shaft
- pump
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/047—Bearings hydrostatic; hydrodynamic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
- F04D13/10—Units comprising pumps and their driving means the pump being electrically driven for submerged use adapted for use in mining bore holes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/0465—Ceramic bearing designs
-
- 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/043—Sliding surface consisting mainly of ceramics, cermets or hard carbon, e.g. diamond like carbon [DLC]
-
- 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/26—Brasses; Bushes; Linings made from wire coils; made from a number of discs, rings, rods, or other members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、液体中及び気体中で使用される摺動部に用
いられる組合委摺動部材に関し、特に、起動時及び１チ
止時に気体中ＶＣＭかれ、定常運転時に水中又はスラリ
ー中におかれて摺動する車軸ポンプ或いは斜軸ポンプの
水中軸受に適した組合せ摺動部材に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a combination sliding member used for a sliding part used in liquid and gas, and in particular, the present invention relates to a combination sliding member used in a sliding part used in liquid and gas. The present invention relates to a combination sliding member suitable for a submerged bearing of an axle pump or a diagonal shaft pump that slides while being submerged in water or slurry during steady operation.
従来の支軸ポンプ及び斜軸ポンプの水中軸受にはゴム軸
受、鉛青銅軸受等の軸受が使用されていた。しかし、こ
れらのポンプを起動する場合には、この水中軸受が気体
中におかれていることが多くそのままの状態で起動する
ことは困難であった。即ち、ゴム軸受も鉛青銅等の金属
製軸受も水或いは油で潤滑された状態で使用されるので
あれば極めて安定した摺＃Ｊ特性を示すものであるが、
気体中、即ち無４周滑条件下で使用するとなると、摺動
部から激しく発熱し軸受部が速かに破損されるからであ
る。Conventional submersible bearings for pivot shaft pumps and oblique shaft pumps have used rubber bearings, lead bronze bearings, and the like. However, when starting these pumps, the submersible bearings are often placed in gas, making it difficult to start them in that state. In other words, both rubber bearings and metal bearings such as lead bronze exhibit extremely stable sliding #J characteristics if they are used while lubricated with water or oil.
This is because if the bearing is used in gas, that is, under no-sliding conditions, the sliding portion will generate intense heat and the bearing will be quickly damaged.
従って、従来の支軸ポンプや斜軸ポンプでは起動時の無
潤滑条件下の運転時に水中軸受を保護するため、■潤滑
油の供給或いは■軸受部への注水等の手段が採用されて
いた。Therefore, in order to protect the submersible bearings in conventional spindle pumps and oblique shaft pumps during operation under non-lubricated conditions at startup, measures such as (1) supplying lubricating oil or (2) injecting water into the bearing portion have been adopted.
第１図は軸受部へ注水する装置を設けた従来の交軸ポン
プの概略を示すもので、その概要を説明すれば、第１図
において１は外水位を示し。FIG. 1 shows an outline of a conventional cross-shaft pump equipped with a device for injecting water into a bearing part. To explain the outline, 1 in FIG. 1 indicates the outside water level.
この外水位１に水没する位置にインペラ２が（るように
該ポンプは設置され又いる。駆動用モータ３は保守点検
が容易なように陸上に設けられ、駆動用モータ３の回転
は軸継手４を介して軸５，５′に伝達され、軸５′の先
端部に接続されたインペラ２を回転することとなる。な
お６は軸５と軸５／とを接続する中間軸継手である。イ
ンペラ２０回転によって水は吸込みベル７から吸い込ま
れ吐出ボウル８、吊下げ管９，１０を通過して吐出エル
ボ１１から吐出される。１２゜１３は上部水中軸受１４
及び下部水中軸受１５へ潤？゛１を水を導（ための保護
管である。また上部水中軸受１４は水中軸受支え１６に
よって支持されており下部水中軸受１５はリプ１７，１
７’によって支持されている。The pump is installed so that the impeller 2 is submerged in the outside water level 1. The drive motor 3 is installed on land for easy maintenance and inspection, and the rotation of the drive motor 3 is controlled by a shaft coupling. 4 is transmitted to the shafts 5, 5', and rotates the impeller 2 connected to the tip of the shaft 5'. Note that 6 is an intermediate shaft joint that connects the shaft 5 and the shaft 5/. As the impeller rotates 20 times, water is sucked in from the suction bell 7, passes through the discharge bowl 8, the hanging pipes 9 and 10, and is discharged from the discharge elbow 11. 12° 13 is the upper underwater bearing 14.
And moisture to the lower underwater bearing 15? The upper underwater bearing 14 is supported by an underwater bearing support 16, and the lower underwater bearing 15 is supported by a lip 17, 1.
7'.
次に第２図に基いて上部水中軸受１４について説明する
。第２図は第１図における上部水中軸受１４の拡大図で
あるが、軸５′にはステンレス製の円筒状のスリーブ１
８が固着されて、軸５′と一体に回転するようになって
おり、また、水中軸受支え１６にはゴム軸受１９がスリ
ーブ１８の外周面と僅かのすき間をもって固定されてい
る。なおこのゴム軸受１９の水平断面の内周形状は円形
であって、潤滑水用の縦溝が数本設けられているのが一
般的である。そして軸５゜５′の回転によって生じる軸
５，５′の半径方向の振れをスリーブ１８の外周面がゴ
ム軸受１９の内周面に摺接することにより制限するもの
である。Next, the upper underwater bearing 14 will be explained based on FIG. FIG. 2 is an enlarged view of the upper submersible bearing 14 in FIG.
A rubber bearing 19 is fixed to the underwater bearing support 16 with a slight gap between it and the outer peripheral surface of the sleeve 18. Note that the inner circumferential shape of the rubber bearing 19 in horizontal section is generally circular, and is generally provided with several vertical grooves for lubricating water. The outer peripheral surface of the sleeve 18 comes into sliding contact with the inner peripheral surface of the rubber bearing 19, thereby limiting the radial deflection of the shafts 5, 5' caused by the rotation of the shafts 5.degree. 5'.
この第１図及び第２図に示される従来の交軸ポンプの起
動時及び定常運転時に、注水口２０（第１図参照）から
軸５，５′と保護管１２．１６との間に注水し、水中軸
受１４．１５を水で潤滑し保護するものである。第１図
の交軸ポンプでは水中軸受として上部水中軸受１４と下
部水中軸受１５との２ケの水中軸受が設けられているが
、交軸ポンプの軸の長さは数１０ｍにも及ぶこともある
のでその場合には多数の水中軸受が設けられている。そ
して、この間の全ての水中軸受を保護する為に、軸の全
長にわたって保護管が設けら１１ている。従って、この
ようにポンプの起動時における水中軸受を保護するため
に多大な設置＋ｆｆｆ ｉ’Ｊを強いられるばかりでな
（、ポンプ全体の重量も大となるため、ポンプを支える
ための装置にも多大の設置ｌａ費を強いられていた。During startup and steady operation of the conventional cross-shaft pump shown in FIGS. 1 and 2, water is injected from the water inlet 20 (see FIG. 1) between the shafts 5, 5' and the protective tubes 12, 16. The submersible bearings 14 and 15 are lubricated and protected by water. The cross-shaft pump shown in Fig. 1 is provided with two submersible bearings, an upper submersible bearing 14 and a lower submersible bearing 15, but the shaft length of the cross-shaft pump can reach several tens of meters. Therefore, in that case, a large number of underwater bearings are provided. In order to protect all the underwater bearings during this time, a protection tube 11 is provided along the entire length of the shaft. Therefore, in order to protect the underwater bearing when starting the pump, a large amount of installation + fff i'J is required. They were forced to pay huge installation costs.
以上第１図及び＠２図に基く説明は、交軸ポンプに関す
るものであるが、斜軸ポンプにおいても全（同様の問題
があった。The above explanation based on FIGS. 1 and 2 relates to the cross-axis pump, but the same problem also exists in the oblique-axis pump.
本発明の目的は、気体中と液体中とで使用される組合せ
摺動部材において、双方の使用条件下において安定した
摺動特性をもつ組合せ摺動部材を提供することであり、
特に交軸ポンプ及び斜軸ポンプの水中軸受として、ポン
プ起動時に′ｉ６ける無潤滑条件下でも起動が可能であ
り。An object of the present invention is to provide a combination sliding member that is used in gas and liquid, and has stable sliding characteristics under both usage conditions.
In particular, as submersible bearings for cross-shaft pumps and oblique-shaft pumps, it is possible to start the pump even under non-lubricated conditions.
起動後の定常運転時においても良好な摺動特性を示し、
しかも、清水中のならず海水の如き良電導度液体やスラ
リー液中においても安定した摺動特性を示す組合せ摺動
部拐を提供することである。It shows good sliding characteristics even during steady operation after startup,
Moreover, it is an object of the present invention to provide a combination sliding part that exhibits stable sliding characteristics not only in fresh water but also in liquids with good conductivity such as seawater and slurry liquids.
本発明は、液体中及び気体中で使用される組合せ摺動部
材において、一方の部材を超硬合金（Ｗａ）とし、他方
の部材を窒化ケイ素（ｓ ｘ ３Ｎ ４ ）又は炭化ケ
イ素（Ｓｉりのセラミックスとしたことを％徴とする組
合せ摺動都利である。The present invention is a combination sliding member used in liquid and gas, in which one member is made of cemented carbide (Wa) and the other member is made of silicon nitride (s x 3N 4 ) or silicon carbide (Si). It is a combination sliding tool that is unique in that it is made of ceramics.
本発明者等は、気体中、即ち無潤滑条件下においてポン
プの起動が可能であり、しかも海水或いはスラリー液中
においても安定して良好な摺動特性欠示す支軸ボング及
び“斜軸ポンプ用の水中軸受について鋭意研究を重ねた
結果本発明をなすに至った。The present inventors have developed a spindle bong and a "slanted shaft pump" that can be started in gas, that is, under non-lubricated conditions, and that exhibit stable and good sliding characteristics even in seawater or slurry liquid. As a result of extensive research into underwater bearings, the present invention was developed.
以下、本発明の詳細な説明する。The present invention will be explained in detail below.
支軸ポンプ或いは斜軸ポンプの水中軸受は、前述の如（
無潤滑条件及び祠／ｎ条件のいづれの条件の下において
も安定して良好な摺動特性を発揮することが望ましい。The submersible bearing of a pivot shaft pump or a tilt shaft pump is as described above (
It is desirable to stably exhibit good sliding characteristics under both no-lubrication conditions and abrasion/n conditions.
然し乍ら、従来の水中軸受における摺動部材の組合せ、
例えばゴム軸受−ステンレス鋼製軸スリーブ或いはカー
ボン含有テフロン軸受−ステンレス鋼軸スリーブ等の場
合にあっては、清水中の摺動特定は優れているが無潤滑
条件においては全（使用できず、又、カーボン軸受或い
はカーボン含有銅合金軸受とステンレス鋼軸スリーブと
の組合せにおいては、水中軸受部がケイ砂（砂）やアル
ミナ粒子等を含むスラリー液に浸漬されると、摺動面が
速やかに損傷され、必らずしも満足できるものではなか
った。However, the combination of sliding members in conventional underwater bearings,
For example, in the case of a rubber bearing-stainless steel shaft sleeve or a carbon-containing Teflon bearing-stainless steel shaft sleeve, the sliding characteristics in fresh water are excellent, but under no lubrication conditions, they cannot be used or In the case of a combination of a carbon bearing or a carbon-containing copper alloy bearing and a stainless steel shaft sleeve, if the submerged bearing part is immersed in a slurry liquid containing silica sand or alumina particles, the sliding surface will be quickly damaged. However, it was not always satisfactory.
本発明者等は第３図に示す実験装置を用いて試験すると
共に、第５図に示すような支軸ポンプを用い、さまざま
な摺動部材について、清水条件、気体条件、スラリー条
件、海水条件或いはスラリーを含む海水条件等のさまざ
まな使用環境における摺動特性を調べた結果、本発明の
組合せ摺動部材が最も優れていることを見い出した。The present inventors conducted tests using the experimental apparatus shown in Figure 3, and also tested various sliding members under fresh water conditions, gas conditions, slurry conditions, and seawater conditions using a spindle pump as shown in Figure 5. Alternatively, as a result of examining the sliding characteristics in various usage environments such as seawater conditions containing slurry, it was found that the combined sliding member of the present invention is the most excellent.
先づ、第３図について説明する。First, FIG. 3 will be explained.
第３図は摺動試験装置の縦断面図である。FIG. 3 is a longitudinal sectional view of the sliding test device.
第５図において油圧モータ２１によりトルクメータ２２
を介して軸２６が回され、軸２３の端にはスリーブ状の
試験片２５が吹入固定され、試験片２５に摺動するよう
に嵌入するリング状試験片２６が軸受ハウス２７に嵌入
しており。In FIG. 5, the torque meter 22 is controlled by the hydraulic motor 21.
A shaft 26 is rotated through the shaft 23, a sleeve-shaped test piece 25 is injected and fixed at the end of the shaft 23, and a ring-shaped test piece 26, which is slidably fitted onto the test piece 25, is fitted into the bearing house 27. I'm here.
矢印３０で示される方向より加わるラジアル荷重はロー
ドセル２８を介してロッド２９端を通じて軸受ハウス２
７の保持部材６１に伝えられる。軸受ハウス２７には矢
印５２より液体が送入されるホース３３が配されている
。３４は軸２３の回転数を知る回転計である。The radial load applied from the direction indicated by the arrow 30 is applied to the bearing house 2 through the load cell 28 and the end of the rod 29.
It is transmitted to the holding member 61 of No. 7. A hose 33 through which liquid is fed from an arrow 52 is arranged in the bearing house 27 . 34 is a tachometer that measures the number of rotations of the shaft 23.
リング状試験片（直径６０ミリメートル、幅１０ミリメ
ートル）２６を支持する側の軸受ハウス２７、ロードセ
ル２８１０ツド２９、Ｍ受・・ウス保持部材３１、ホー
ス６６等は試験槽５５に支持され、試験槽３５は上下送
り装置５６の上下動可能なロンド３７により支持されて
いる。従ってリング状試験片２６は上下動し、スリーブ
状試験片２５が回転し、それらの軸受隙間に液体を送り
込める如（なっている０この摺動試験装置によって得ら
れたデータを第１表に示す。The bearing house 27 on the side that supports the ring-shaped test piece (diameter 60 mm, width 10 mm) 26, the load cell 2810 tube 29, the M-receiving member, the hose holding member 31, the hose 66, etc. are supported by the test tank 55. 35 is supported by a vertically movable iron 37 of a vertical feeding device 56. Therefore, the ring-shaped test piece 26 moves up and down, the sleeve-shaped test piece 25 rotates, and the liquid is sent into the bearing gap between them. show.
使用した材料の材質等は次のとおりである。The materials used are as follows.
超硬合金・・・・・・９０％以上のｗｅを含有するＪＩ
Ｓ Ｈ５５０１Ｃ１，種３号品
ステンレス鋼・・・・・・５ＵＳ３０４ステンレス鋼硬
質肉盛材・・・・・・ ３５％のｗＣを含むスラリー水
・・・・・・平均粒径８０μ、最大粒径１００μの５ｉ
ｎ２０．３重量％
を含む水
河川水＋スラリー・・・・・・ 川砂０．６重量％と、
平均粒径８０μ、最大粒径
１００μのＡ／２０．０．５重
量％を含む水
海水＋スラリー・・・・・・平均粒径８０μ、最大粒径
１００μの５ｉｎ２０．５
ｆｆｉ：Ｉｊｔ％を含む海水
第１表中黒１，２が本発明の組合せ摺動部材であり、屋
３〜１０が従来の摺動部材の組合せ及び比較試験のため
の摺動部材の組合せである。Cemented carbide: JI containing 90% or more of we
S H5501C1, Class No. 3 stainless steel...5US304 stainless steel hardfacing material...Slurry water containing 35% wC...Average particle size 80μ, maximum particle size 100μ 5i
Water containing n20.3% by weight River water + slurry... River sand 0.6% by weight,
Water containing A/20.0.5% by weight with an average particle size of 80μ and a maximum particle size of 100μ Seawater + Slurry... 5in20.5 ffi:Ijt% with an average particle size of 80μ and a maximum particle size of 100μ Seawater Table 1, squares 1 and 2 in black squares are the sliding member combinations of the present invention, and rows 3 to 10 are combinations of conventional sliding members and sliding member combinations for comparative testing.
なお、評価の欄の記号は、それぞれ
◎・・・充分な耐久性がある（１６，０００時間尉）○
・・・実用上使用可能（８，０００時間以上）Δ・・・
条件により使用可能
×・・・使用不能
を意味し、摩擦係数、耐摩耗性、耐焼付性等の諸因子を
総合的に評価した結果を示すものである。In addition, the symbols in the evaluation column are ◎... Sufficient durability (16,000 hours) ○
...Practically usable (more than 8,000 hours) Δ...
Can be used depending on the conditions ×... means unusable, and indicates the result of comprehensive evaluation of various factors such as friction coefficient, wear resistance, and seizure resistance.
なお摺動部材に関しては、上記組合わせ以外のものにつ
いても多数の試験を行ったが、これらのデータは省略し
た。Regarding sliding members, a number of tests were conducted on combinations other than those described above, but these data are omitted.
第４図は、横軸に運転時間、縦軸に摩擦係数をとり、摺
動速度２．５ ｍ ／ Ｓ 、面圧はゴム軸受対ステン
レス鋼ＳｕＳ ３０４については６．３に１１ｒ／閤２
（×印の記号で表わす）、窒化ケイ素セラミックス軸受
対超硬合金（９０％ｗｅ）については６７ ｋｇｒ／ａ
ｎ２（○印の記号で表わした本発明１）、炭化ケイ素セ
ラミックス軸受対超硬合金（９０％ｗＣ）については６
７ｋｌｆ／Ｃｍ２（・印の記号で表わした本発明２）及
び４２ ｋｌｌｆ１０ｎ２（・印の記号で表わした本発
明２つで試験した結果を示す。In Figure 4, the horizontal axis shows the operating time and the vertical axis shows the coefficient of friction. The sliding speed is 2.5 m/s, and the surface pressure is 6.3 to 11r/2 for the rubber bearing versus stainless steel SuS 304.
(represented by the cross symbol), 67 kgr/a for silicon nitride ceramic bearings vs. cemented carbide (90% we)
n2 (invention 1 represented by the symbol ○), 6 for silicon carbide ceramic bearings versus cemented carbide (90%wC)
7klf/Cm2 (invention 2 represented by the symbol *) and 42kllf10n2 (invention two represented by the symbol *).
第１表及び第４図から明らかなように、本発明の組合せ
摺動部材、即ち超硬合金と窒化ケイ素セラミックス又は
炭化ケイ素セラミックスとを組合せてなる摺動部材は空
気中、清水中或いはケイ砂・アルミナ粒子を含むスラリ
液中においても極めて安定した摺動特性を示すものであ
る。As is clear from Table 1 and FIG. 4, the combined sliding member of the present invention, that is, the sliding member made by combining cemented carbide and silicon nitride ceramics or silicon carbide ceramics, can be used in air, fresh water, or silica sand.・Exhibits extremely stable sliding properties even in slurry liquid containing alumina particles.
本発明において一方の摺動部材である窒化ケイ素又は炭
化ケイ素セラミックスは引張強度。In the present invention, silicon nitride or silicon carbide ceramic, which is one of the sliding members, has a tensile strength.
線膨張率などの機械的性質からできるだけ取付は容易な
側の摺動部材として用いるのが好ましい。水中軸受を例
にとれば軸受側の摺動部材として用いるのが望ましく、
他方、もう一方の摺動部材である超硬合金は、回転側の
摺動部材として用いるのが望ましい。It is preferable to use a sliding member that is as easy to install as possible in view of mechanical properties such as coefficient of linear expansion. Taking an underwater bearing as an example, it is desirable to use it as a sliding member on the bearing side.
On the other hand, the other sliding member made of cemented carbide is preferably used as the rotating sliding member.
また、第１表及び第４図に示した試験において使用した
超硬合金は、ＪＩＳ Ｈ５５０１Ｇ種３号に和尚するも
のであるが、９０重量％以上のタングステンカーバイド
（ＷＣ）を含む超硬合金であれば第１表及び第４図に示
される良好で且つ安定した摺動特性を有するものである
。Furthermore, the cemented carbide used in the tests shown in Table 1 and Figure 4 complies with JIS H5501G Class No. 3, and is a cemented carbide containing 90% by weight or more of tungsten carbide (WC). If so, it has good and stable sliding characteristics as shown in Table 1 and FIG. 4.
第５図は、第１図に示した支軸ポンプに対応する本発明
の組合せ摺動部材を適用した場合の支軸ポンプの縦断面
概略図を示す。FIG. 5 shows a schematic vertical cross-sectional view of the spindle pump shown in FIG. 1 to which the combined sliding member of the present invention is applied.
第５図において、各符号は第１図で示した各符号と同じ
意味を有する。In FIG. 5, each symbol has the same meaning as each symbol shown in FIG.
本発明の摺動部材は、空気中、清水中或いは各種の粒子
を含むスラリ液中においても安定した摺動特性を示すの
で、支軸ポンプに適用した場合、第１図に示されている
保護管１２ 、１３゜注水口２０及び第１図には図示さ
れていないが、該注水口２０に注水するための装置は不
要となり、又本発明の摺動部材を用いた場合、後で述べ
るように軸受部材を小さく出来るので、下部水中軸受１
５も小さくすることが可能となり、リプ１７′に簡単に
取り付けることが出来るため、第１図で示されている下
部水中軸受１５を支えるためのリプ１７も不要となり、
極めて簡単な構造のものとなっている。The sliding member of the present invention exhibits stable sliding characteristics even in air, fresh water, or slurry liquid containing various particles, so when applied to a spindle pump, it can provide the protection shown in FIG. Although the pipes 12 and 13° water inlet 20 are not shown in FIG. Since the bearing member can be made smaller, the lower underwater bearing 1
5 can be made smaller and can be easily attached to the lip 17', so the lip 17 for supporting the lower underwater bearing 15 shown in FIG. 1 is also unnecessary.
It has an extremely simple structure.
即ち、第４図及び第４図に関する説明から明らかな如（
１本発明の組合わせ摺動部材は、従来品の１０倍以上と
いう極めて高い面圧荷重にも耐えることができるので、
摺動面積を極め°Ｃ小さくすることが可能となり、第５
図に示す水中軸受１４及び１５は小さなものでよい。That is, as is clear from FIG. 4 and the explanation regarding FIG.
1. The combined sliding member of the present invention can withstand an extremely high surface pressure load of more than 10 times that of conventional products.
It is now possible to extremely reduce the sliding area by °C.
The underwater bearings 14 and 15 shown in the figure may be small.
第６図は第５図における上部水中軸受１４０片側拡大図
であるが、超硬合金製のスリーブ３８と嗜化ケイ素セラ
ミックス又は炭化ケイ素セラξツクスの軸受６９とによ
って摺動部が形成されている。FIG. 6 is an enlarged view of one side of the upper submersible bearing 140 in FIG. 5, and a sliding portion is formed by a sleeve 38 made of cemented carbide and a bearing 69 made of hardened silicon ceramics or silicon carbide ceramics. .
また軸受６９は、焼きばめによってケース４０に固着さ
れて軸受支え１６側罠固定され、スリーブ３８は図示し
ない止めねじによって軸５′に固着されている。Further, the bearing 69 is fixed to the case 40 by shrink fitting and fixed to the bearing support 16 side, and the sleeve 38 is fixed to the shaft 5' by a set screw (not shown).
以−ヒは支軸ポンプの水中軸受に本発明を適用した例で
あるが斜軸ポンプに適用したｊ動台にも同様の作用・効
果を奏するものである。The following is an example in which the present invention is applied to a submersible bearing of a spindle pump, but the same operation and effect can be obtained in a j-motion table applied to a tilted spindle pump.
なお、スリーブ３８は軸受３９に比し取付けの為長いも
のを用いているが軸受３９と同じ長さのものを用いても
よいのは当然である。また。It should be noted that although the sleeve 38 is longer than the bearing 39 for installation purposes, it is of course possible to use a sleeve having the same length as the bearing 39. Also.
第５図に示したポンプで海水を取扱う場合には、軸とケ
ーシングとの間に発生する腐食電流が極めて微量となる
か、或いは実質的に腐食′電流が流れないこととなり好
ましい。また、本発明をこの種のポンプに適用すること
によって、ポンプの構造が簡単となるばかりでなく、そ
の取扱う流体がどのような性状のものであってもよいと
いう利点がある。When handling seawater with the pump shown in FIG. 5, it is preferable that the corrosion current generated between the shaft and the casing is extremely small, or that substantially no corrosion current flows. Further, by applying the present invention to this type of pump, there is an advantage that not only the structure of the pump becomes simple, but also the fluid handled by the pump can be of any property.
本発明の組合せ摺動部材を前記水中軸受として用いる場
合、その形状は、第６図に示すように超硬合金及び窒化
ケイ素又は炭化ケイ累七うミックス共に円筒状とし、超
硬合金を軸スリーブとし、また窒化ケイ素又は炭化ケイ
素セラミックスを軸受とするのが望ましい。即ち、円筒
状の形状であれば超硬台金であっても、又、窒化ケイ素
又は炭化ケイ素セラミックスであっても成形が容易であ
り、被雑な形状の水中軸受に比べ安価に製作ができるが
強度の而から前記セラミックス筒状体を固定側の軸受と
して用いるのが好ましい。When the combined sliding member of the present invention is used as the underwater bearing, as shown in FIG. It is also desirable that the bearing be made of silicon nitride or silicon carbide ceramics. In other words, if it has a cylindrical shape, it is easy to mold even if it is made of carbide base metal, silicon nitride or silicon carbide ceramics, and it can be manufactured at a lower cost than underwater bearings with complicated shapes. However, from the viewpoint of strength, it is preferable to use the ceramic cylindrical body as the stationary side bearing.
以上に述べた如く１本発明の組合せ摺動部材は液体中及
び気体中で使用される組合せ摺動部材において、一方の
部材な超硬合金とし、他方の部携を覇化ケイ素又は炭化
ケイ素セラミックスとした。１ｉ１１ ＠ぜ摺動部材で
あって、本発明によれば、無潤滑条件下、即ち気体中に
おいて摺動する場合であっても極めて安定した摺動特性
を有し、また水潤滑がなされる条件の下においてもさら
に優れた摺ａＪ特性を有し、さらには、ケイ砂やアルミ
ナ倣粒子からなるスラリ水中で摺動する場合であっても
その良好な摺動特性を維持しているものであるから、無
潤滑状態と潤滑状、１歩とが（り返し出現する条件の下
で作動する摺動部或いは摩耗性取扱い液中で作動する摺
動部Ｖ１極めて好適な組合せ摺動部月を提供し得るもの
である。As described above, the combined sliding member of the present invention is a combined sliding member used in liquid and gas, in which one member is made of cemented carbide and the other member is made of silicon or silicon carbide ceramic. And so. 1i11 @Ze sliding member, according to the present invention, has extremely stable sliding characteristics even under non-lubricated conditions, that is, when sliding in gas, and also has water lubrication conditions. It has even better sliding aJ characteristics even under water, and also maintains its good sliding characteristics even when sliding in slurry water made of silica sand and alumina imitation particles. Therefore, a sliding part that operates under conditions where the unlubricated state and the lubricated state occur repeatedly, or a sliding part that operates in an abrasive handling liquid V1, provides an extremely suitable combination of sliding parts. It is possible.
！ｒだ、項化り一イ素セラεツクスや炭化ケイ素セラｉ
ノクスは良絶Ｒ性をイアすることがら良電）４フ度液中
で作動する摺動部材として用いれば、腐食′１１流を遮
断し得ることとなり周囲におかれた金属部椙な保護する
ことにもなり、さらには、高い面圧荷重にも耐えること
がら摺動部を小さなものとすることができ、しかも、摺
動部の寿命を飛躍的に延すことができるものであって、
極めて優れた組合せ摺動部材といえる。! It's r, nitride ceramics and silicon carbide ceramics.
Since Nox has excellent R properties (Ryoshiden), if used as a sliding member that operates in 4-degree liquid, it can block corrosion '11 flow and protect surrounding metal parts. Furthermore, since it can withstand high surface pressure loads, the sliding part can be made smaller, and the life of the sliding part can be dramatically extended.
It can be said that this is an extremely excellent combined sliding member.
第１図は従来の支軸ポングの概略図、第２図は同上部水
中軸受の概略図、第６図は摺動試験装置の断面図、第４
図は組合わせ摺動部材の摩擦係数を示す図、第５図は本
発明の摺動部材を用いた支軸ポ／プの概略図、第６図は
同上部水中軸受の概略図を示す。
１・・・外水位、２・・・インペラ、６・・・ＷＡ動モ
ータ、５．５／・・・軸、９，１０・・・吊下げ管、１
１・・・吐出エルボ、１２，１３・・・保護管、１４・
・・上部水中軸受、１５・・・下部水中軸受、１７．１
７’・・・リプ、１８・・・スリーブ、１９・・・ゴム
軸受、２ｏ・・・注水口、２１・・・油圧モーフ、２６
・・・軸、２５．２６・−・試験片、２７・・・軸受ハ
ウス、２８・・・ロードセル、３６・・・ホース、３５
・−・試験槽、３８・・・超硬合金製スリーブ、３９・
・・セラミックス軸受第１図
第２図
第５図
拓６図Figure 1 is a schematic diagram of a conventional support shaft pong, Figure 2 is a schematic diagram of the same upper underwater bearing, Figure 6 is a sectional view of the sliding test device, Figure 4
The figure shows the coefficient of friction of the combined sliding member, FIG. 5 is a schematic diagram of a spindle pop using the sliding member of the present invention, and FIG. 6 is a schematic diagram of the upper submersible bearing. 1...Outside water level, 2...Impeller, 6...WA dynamic motor, 5.5/...shaft, 9,10...hanging pipe, 1
1...Discharge elbow, 12, 13...Protection tube, 14.
... Upper underwater bearing, 15... Lower underwater bearing, 17.1
7'... Lip, 18... Sleeve, 19... Rubber bearing, 2o... Water inlet, 21... Hydraulic morph, 26
... shaft, 25.26 ... test piece, 27 ... bearing house, 28 ... load cell, 36 ... hose, 35
・-・Test tank, 38...Cemented carbide sleeve, 39・
... Ceramic bearings Figure 1 Figure 2 Figure 5 Raku Figure 6
Claims (1)
いて、一方の部材な超硬合金（ｗｅ）とし、他方の部材
を窒化ケイ素（ｓｉ、ｓ４）又は炭化ケイ素（ＳｉＣ）
のセ２ξツクスとしたことを特徴とする組合せ摺動部材
。 ２、 窒化ケイ素又は炭化ケイ素の七うミックスからな
る部材が固定されている側に取付けられている特許請求
の範囲第１項記載の組合せ摺動部材。 ６、 超硬合金が９０爪量％以上のタングステンカーバ
イドを含む特許請求の範囲第１項又はへ′４２項に記載
の組合せ摺動部材。[Claims] t In a combination sliding member used in liquid and gas, one member is made of cemented carbide (WE) and the other member is made of silicon nitride (SI, S4) or silicon carbide (SiC). )
A combination sliding member characterized by having a set of 2ξ. 2. The combination sliding member according to claim 1, wherein the member made of a mixture of silicon nitride or silicon carbide is attached to the fixed side. 6. The combination sliding member according to claim 1 or 5'42, wherein the cemented carbide contains 90% or more of tungsten carbide.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58180649A JPH0697053B2 (en) | 1983-09-30 | 1983-09-30 | Journal bearing for pump and pump using the same |
| AU32968/84A AU579834B2 (en) | 1983-09-30 | 1984-09-12 | Combination of slide members |
| US06/651,039 US4664595A (en) | 1983-09-30 | 1984-09-14 | Combination of slide members |
| DE3435821A DE3435821C2 (en) | 1983-09-30 | 1984-09-28 | Bearing for a pump |
| KR1019840006058A KR930002055B1 (en) | 1983-09-30 | 1984-09-29 | Active part combined structure of bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58180649A JPH0697053B2 (en) | 1983-09-30 | 1983-09-30 | Journal bearing for pump and pump using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6073123A true JPS6073123A (en) | 1985-04-25 |
| JPH0697053B2 JPH0697053B2 (en) | 1994-11-30 |
Family
ID=16086883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58180649A Expired - Lifetime JPH0697053B2 (en) | 1983-09-30 | 1983-09-30 | Journal bearing for pump and pump using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0697053B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6237517A (en) * | 1985-08-12 | 1987-02-18 | Ibiden Co Ltd | Sliding member |
| JPS62159813A (en) * | 1985-12-28 | 1987-07-15 | Kyocera Corp | Sliding device |
| JPS62167924A (en) * | 1986-01-17 | 1987-07-24 | Showa Denko Kk | Silicon carbide sliding member |
| JPS62147766U (en) * | 1986-03-13 | 1987-09-18 | ||
| JPS6388319A (en) * | 1986-10-01 | 1988-04-19 | Agency Of Ind Science & Technol | Method and device for bearing in slide bearing |
| JP2017227203A (en) * | 2016-06-24 | 2017-12-28 | 株式会社酉島製作所 | Pump facility |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5593998A (en) * | 1979-01-08 | 1980-07-16 | Shibaura Eng Works Co Ltd | Canned pump |
-
1983
- 1983-09-30 JP JP58180649A patent/JPH0697053B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5593998A (en) * | 1979-01-08 | 1980-07-16 | Shibaura Eng Works Co Ltd | Canned pump |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6237517A (en) * | 1985-08-12 | 1987-02-18 | Ibiden Co Ltd | Sliding member |
| JPS62159813A (en) * | 1985-12-28 | 1987-07-15 | Kyocera Corp | Sliding device |
| JPS62167924A (en) * | 1986-01-17 | 1987-07-24 | Showa Denko Kk | Silicon carbide sliding member |
| JPS62147766U (en) * | 1986-03-13 | 1987-09-18 | ||
| JPH0444941Y2 (en) * | 1986-03-13 | 1992-10-22 | ||
| JPS6388319A (en) * | 1986-10-01 | 1988-04-19 | Agency Of Ind Science & Technol | Method and device for bearing in slide bearing |
| JPH0220853B2 (en) * | 1986-10-01 | 1990-05-10 | Kogyo Gijutsuin | |
| JP2017227203A (en) * | 2016-06-24 | 2017-12-28 | 株式会社酉島製作所 | Pump facility |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0697053B2 (en) | 1994-11-30 |
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