JPS62233563A - Worm wheel - Google Patents
Worm wheelInfo
- Publication number
- JPS62233563A JPS62233563A JP7609686A JP7609686A JPS62233563A JP S62233563 A JPS62233563 A JP S62233563A JP 7609686 A JP7609686 A JP 7609686A JP 7609686 A JP7609686 A JP 7609686A JP S62233563 A JPS62233563 A JP S62233563A
- Authority
- JP
- Japan
- Prior art keywords
- wheel
- worm
- teeth
- worm wheel
- weight
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 7
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 5
- 229910021332 silicide Inorganic materials 0.000 claims abstract description 5
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010703 silicon Substances 0.000 claims abstract description 4
- 230000003746 surface roughness Effects 0.000 claims description 7
- 239000006104 solid solution Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 abstract description 7
- 238000005299 abrasion Methods 0.000 abstract 2
- 230000000573 anti-seizure effect Effects 0.000 abstract 2
- 239000007787 solid Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 17
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 7
- 229910000906 Bronze Inorganic materials 0.000 description 6
- 239000010974 bronze Substances 0.000 description 6
- 238000005266 casting Methods 0.000 description 6
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- VNTLIPZTSJSULJ-UHFFFAOYSA-N chromium molybdenum Chemical compound [Cr].[Mo] VNTLIPZTSJSULJ-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 239000012208 gear oil Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- OGSYQYXYGXIQFH-UHFFFAOYSA-N chromium molybdenum nickel Chemical compound [Cr].[Ni].[Mo] OGSYQYXYGXIQFH-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Gears, Cams (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、減速機用ウオームホイールに係り。[Detailed description of the invention] [Industrial application field] The present invention relates to a worm wheel for a reducer.
特に耐摩耗性、耐焼付き性に優れるウオームとホイール
の材料の組合せに関する。In particular, it relates to a combination of worm and wheel materials that have excellent wear resistance and seizure resistance.
ウオームホイールは、小さな容積で大きな減速比が得ら
れる特徴を持っている。しかし、かみ合いに大きな滑り
を伴うため、接触条件が厳しく。Worm wheels have the characteristic of providing a large reduction ratio with a small volume. However, the contact conditions are severe because the engagement involves a large amount of slippage.
ホイールおよびウオーム材の選択が性能を左右する大き
な要因となっている。従来、減速機用ウオームホイール
のウオームには機械構造用炭素鋼、ホイールにはリン青
銅、アルミニウム青銅等が使用されてきた。特公昭５８
−２１０１６号公報には、ＡＱ青銅に鉄珪化物を含有し
た耐摩耗Ａｆｉ青銅について記載されており、ウオーム
ホイールに使用できることが記載されている。The selection of wheel and worm material is a major factor that affects performance. Conventionally, mechanical structural carbon steel has been used for the worm of a worm wheel for a reducer, and phosphor bronze, aluminum bronze, etc. have been used for the wheel. Special Public Service 1987
Publication No. 21016 describes wear-resistant Afi bronze containing iron silicide in AQ bronze, and states that it can be used for worm wheels.
しかし近年、減速機の負荷能力向上の要求が強まるにつ
れさらに耐摩耗性、耐焼付き性に優れたウオームホイー
ルが必要となってきた。However, in recent years, as the demand for improving the load capacity of reduction gears has increased, a worm wheel with even better wear resistance and seizure resistance has become necessary.
本発明はかかる問題点を解決するために、優れた耐摩耗
性および優れた耐焼付性を有するウオームホイールを提
供することを目的とする。In order to solve these problems, it is an object of the present invention to provide a worm wheel having excellent wear resistance and seizure resistance.
〔問題点を解決するための手段および作用〕本発明は上
記目的を達成するために、表面にらせん状の歯部を有す
るウオームと、前記ウオームの歯部とかみ合う歯を表面
に有するホイールとを具備し、油潤滑状態で使用される
減速機用ウオームホイールにおいて、当該ホイールの少
なくとも歯部または当該ウオームの少なくとも歯部の一
方が、４〜１２重量％のアルミニウム、１〜１０重量％
の鉄珪化物、０．１〜１重量％の固溶シリコン、および
１〜７重量％のニッケルを含み、残部が実質的に銅から
構成され、他方が鋼から構成されていることを特徴とす
るウオームホイールである。[Means and operations for solving the problems] In order to achieve the above object, the present invention includes a worm having spiral teeth on its surface, and a wheel having teeth on its surface that mesh with the teeth of the worm. In a worm wheel for a reducer, which is used in an oil-lubricated state, at least one of the teeth of the wheel or at least one of the teeth of the worm contains 4 to 12% by weight of aluminum and 1 to 10% by weight of aluminum.
of iron silicide, 0.1 to 1% by weight of solid solution silicon, and 1 to 7% by weight of nickel, the remainder being substantially composed of copper and the other being composed of steel. It is a worm wheel.
本発明によれば、優れた耐摩耗性と耐焼付き性を有する
ため、従来のウオームホイールの１゜５倍〜２倍の負荷
をかけることが可能となる。According to the present invention, since it has excellent wear resistance and seizure resistance, it is possible to apply a load of 1.5 times to 2 times that of a conventional worm wheel.
欣に、上記本発明の構成において、ホイールの少なくと
も歯部または当該ウオームの少なくとも歯部を上記組成
の銅合金で構成した理由について説明する。The reason why at least the teeth of the wheel or at least the teeth of the worm in the configuration of the present invention is made of a copper alloy having the above composition will be explained below.
（１）アルミニウム：４〜１２重量％
アルミニウム量は、一般のアルミニウム青銅において含
まれているのと同様に４〜１２重量％が適当である。ア
ルミニウムが４重量％未満では強度が低く、１２重量％
を越えるとγ２相の析出のためもろくなって実用に不向
きになる。(1) Aluminum: 4 to 12% by weight The amount of aluminum is suitably 4 to 12% by weight, similar to that contained in general aluminum bronze. If the aluminum content is less than 4% by weight, the strength will be low;
If it exceeds this value, it becomes brittle due to the precipitation of the γ2 phase, making it unsuitable for practical use.
（２）鉄珪化物：１〜１０重量％
例えば、Ｆｅ５Ｓｉ が１％未満では、素地とＦｅａ
Ｓｉ の擬二元系状態図を仮定した場合、亜共晶組成
域であり、耐摩耕性を図る上で有効でなし１゜１０％を
こえると合金の伸びが減少し、強度も減少し、強度も減
少する傾向となる。また摩耗試験において相手材の摩耗
が増大する傾向となる。(2) Iron silicide: 1 to 10% by weight For example, if Fe5Si is less than 1%,
Assuming a pseudo-binary phase diagram of Si, it is in the hypoeutectic composition range, which is not effective in improving wear resistance.If it exceeds 1°10%, the elongation of the alloy decreases and the strength also decreases. The strength also tends to decrease. In addition, the wear of the mating material tends to increase in the wear test.
（３）固溶シリコン＝０．１〜−１重量％Ｓｉの添加は
耐摩耗性および強度の向上のために必要であり、そのＡ
Ｑ当量は、１．６である。Ｓｉは素地中に固溶せしめて
おく必要があり、強度、耐摩耗性に有効である量は微量
であり、０．１〜１重量％の範囲である。Ｓｉ量の増加
と共に強度は向上し、１％付近で飽和する。(3) Solid solution silicon = 0.1 to -1% by weight The addition of Si is necessary to improve wear resistance and strength, and its A
Q equivalent is 1.6. Si must be dissolved as a solid solution in the base material, and the amount effective for improving strength and wear resistance is very small, in the range of 0.1 to 1% by weight. The strength increases as the amount of Si increases, and is saturated at around 1%.
また、０．１ ％未満では耐摩耗性の向上にあまり効果
がない。Furthermore, if it is less than 0.1%, it is not very effective in improving wear resistance.
（４）ニッケル：１〜７重量％
ニッケルは、強度および耐力を向上せしめ、さらに共析
変態によるγ２相の析出を抑制する効果があるｅ Ｎ
ｉ量が１％未満では共析状態による硬くてもろいγ２相
の析出を抑制する効果が薄弱となり、合金の伸びが低下
する。また７％を越えると強度の上昇が飽和し、伸びが
減少する傾向になる。(4) Nickel: 1 to 7% by weight Nickel improves strength and proof stress, and has the effect of suppressing precipitation of γ2 phase due to eutectoid transformation.
If the amount of i is less than 1%, the effect of suppressing the precipitation of the hard and brittle γ2 phase due to the eutectoid state will be weak, and the elongation of the alloy will decrease. Moreover, if it exceeds 7%, the increase in strength will be saturated and the elongation will tend to decrease.
上記鋼合金は、鋳造のまま、あるいは熱処理を加えて用
いる。The above-mentioned steel alloy is used as cast or after being heat treated.
熱処理条件としては、例えば
８００〜１０００℃ １〜２Ｈｒ 水冷（焼入れ）４
５０−７００℃ １〜２Ｈｒ 空冷（焼戻し）がある
。かかる熱処理により、引張強さ、硬さが向上し、靭性
が大きくなる。また、残地応力を除去することができる
。Heat treatment conditions include, for example, 800 to 1000°C, 1 to 2 hours, water cooling (quenching) 4
There is air cooling (tempering) at 50-700°C for 1-2 hours. Such heat treatment improves tensile strength and hardness, and increases toughness. Further, residual stress can be removed.
上記本発明構成において、相手材としては、鋼を用いる
。特にＪＩＳＧ４１０３ にッケルクロムモリブデン鋼
鋼材）またはＪＩＳＧ４１０５（クロムモリブデン鋼鋼
材）を用いることが望ましい。その理由は、従来のＪＩ
ＳＧ４０５１ （機械構造用炭素鋼鋼材）にある材料に
比べて、この材料を用いることにより、潤滑油の温度上
昇、および焼付きを少なくできることを究明したためで
ある。In the above configuration of the present invention, steel is used as the mating material. In particular, it is desirable to use JIS G4103 (chromium molybdenum steel) or JIS G4105 (chromium molybdenum steel). The reason is that the conventional JI
This is because we have discovered that by using this material, the temperature rise and seizure of lubricating oil can be reduced compared to the material found in SG4051 (carbon steel for mechanical structures).
本発明における最も好ましい材料組合せは、ホイールの
歯部を前記組成の銅合金で構成し、ウオームを前記クロ
ムモリブデン調成いはニッケルクロムモリブデン鋼で構
成することである。The most preferred combination of materials in the present invention is that the teeth of the wheel are made of a copper alloy having the above composition, and the worm is made of the chromium-molybdenum steel or nickel-chromium-molybdenum steel.
ホイールの歯部のウオームとの摺動面の面粗さおよびウ
オームの歯部のホイールとの摺動面の面粗は５ミクロン
メートル以下−であることが望ましく６）
い。面粗さが５ミクロンメートルを越えるとウオームと
ホイールとの間で局部的に面圧が大きくなることにより
潤滑油の温度上昇が大きくなり、焼付きが生ずるおそれ
があるからである。The surface roughness of the sliding surface of the teeth of the wheel against the worm and the surface roughness of the sliding surface of the teeth of the worm against the wheel are desirably 5 microns or less6). This is because if the surface roughness exceeds 5 micrometers, the local surface pressure between the worm and the wheel will increase, resulting in a large temperature rise in the lubricating oil, which may cause seizure.
次に本発明に係るウオームホイールの実施例について説
明する。Next, an embodiment of the worm wheel according to the present invention will be described.
（実施例１） まず、ホイールの製造をおこなった。(Example 1) First, we manufactured wheels.
製造の方法は、次のとおりである。まず、鋳造条件等の
鋳造方案を決定した。ホイール構成材は、Ｆ ｅ −Ｃ
ｕ母合金、５ｉ−Ｃｕ母合金、ＡＱ。The manufacturing method is as follows. First, we determined the casting method, including casting conditions. The wheel component material is F e -C
u master alloy, 5i-Cu master alloy, AQ.
Ｎ ｉ −Ｃｕ母合金、Ｃｕである。これら材料を、高
周波誘導加熱炉または電気炉中で大気圧下で溶解した。N i -Cu mother alloy, Cu. These materials were melted under atmospheric pressure in a high frequency induction furnace or electric furnace.
溶解中は、サンプリングし、溶解材料が本発明の含有量
内に入っているか否かをチェックした。溶解後、砂型鋳
造、金型鋳造、連続鋳造等により鋳造をおこなった。鋳
造の結果ホイール構成合金は、γ＋β相にＦｅとＳｉの
化合物が分散している組織となっていた。この合金に、
８００〜１１００℃で１〜２ Ｈｒ加熱後水冷の熱処理
（焼入れ）を施し、次いで４５０〜７００℃で１〜２
Ｈｒ加熱後、空冷（焼戻し）の熱処理をおこなった。次
に、このホイール構成用材を機械加工しホイールを得た
。During dissolution, sampling was performed to check whether the dissolved material was within the content of the present invention. After melting, casting was performed using sand mold casting, metal mold casting, continuous casting, etc. As a result of casting, the alloy constituting the wheel had a structure in which a compound of Fe and Si was dispersed in the γ+β phase. In this alloy,
After heating at 800-1100°C for 1-2 hours, water-cooling heat treatment (quenching) is performed, and then at 450-700°C for 1-2 hours.
After the Hr heating, air cooling (tempering) heat treatment was performed. Next, this wheel constituent material was machined to obtain a wheel.
一方、ウオームはクロムモリブデン鋼（ＧＩＳＳＣＭ材
）で構成した。On the other hand, the worm was made of chromium molybdenum steel (GISSCM material).
次に、上記ホイールおよびウオームを用いて、第１図に
示すウオームホイールを製造した。第１図において、ウ
オーム１の歯部は、ホイール歯部２と摺動している。ホ
イール歯部２にはホイールボス部３が装着され、ホイー
ルボス部３にはホイール軸部６が装着されている。この
ようなウオーム１とホイールは、ケース４に装着されて
いる。Next, the worm wheel shown in FIG. 1 was manufactured using the above wheel and worm. In FIG. 1, the teeth of the worm 1 are sliding on the wheel teeth 2. A wheel boss portion 3 is attached to the wheel tooth portion 2, and a wheel shaft portion 6 is attached to the wheel boss portion 3. Such a worm 1 and wheel are attached to a case 4.
なお、５は給油をおこなうための給油孔を示す。Note that 5 indicates an oil supply hole for supplying oil.
次に、上記第１図に示すウオームホイール減速機を用い
、ウオーム歯部とホイール歯部との間の耐摩耗性を調べ
た。Next, using the worm wheel reducer shown in FIG. 1, the wear resistance between the worm teeth and the wheel teeth was examined.
ウオーム材とホイール材との成分組成は次の第１表に示
すとおりである。第１表において試料Ｎα１は本発明ウ
オームホイールを示し、試料Ｎα２〜６は、従来の組成
で構成した比較ウオームホイールを示す。The compositions of the worm material and wheel material are shown in Table 1 below. In Table 1, sample Nα1 represents the worm wheel of the present invention, and samples Nα2 to Nα6 represent comparative worm wheels constructed with conventional compositions.
試験条件としては、面圧５００ｋｇ／ｄ、摩擦速度４
、４ ｍ ／ｓｅｅとし、ギヤオイル潤滑を用いた。試
験結果を第２図に示す。第２図では、ホイール材の摩耗
量を示している。図から本発明ウオームホイールは他の
ウオームホイールと比較して摩耗量が非常に少ないこと
が明らかである。The test conditions were a surface pressure of 500 kg/d and a friction speed of 4.
, 4 m/see, and gear oil lubrication was used. The test results are shown in Figure 2. FIG. 2 shows the amount of wear of the wheel material. It is clear from the figure that the worm wheel of the present invention has a much smaller amount of wear than other worm wheels.
（実施例２）
本発明のウオームホイールと従来のウオームホイールを
以下の条件で試験し、潤滑油の温度上昇を比較した。面
圧５０ｏｋｇ／ｄ、摩擦速度４．４ｍ ／ ｓθＣとし
、ギヤオイル潤滑を用いた。試験結果を第３図に示す。(Example 2) The worm wheel of the present invention and the conventional worm wheel were tested under the following conditions, and the temperature rise of lubricating oil was compared. The surface pressure was 50 ok/d, the friction speed was 4.4 m/sθC, and gear oil lubrication was used. The test results are shown in Figure 3.
図からアルミニウム青銅ホイール材（Ｎα４）は６０分
で油温が急上昇し、焼付きを生じたのに対し、本発明ウ
オームホイールは油温上昇が低いことが明らかである。From the figure, it is clear that the oil temperature of the aluminum bronze wheel material (Nα4) rose sharply in 60 minutes and caused seizure, whereas the worm wheel of the present invention had a lower oil temperature rise.
（実施例３）
本発明のウオームホイールおよび従来のウオームホイー
ルについて、焼付きを生じる臨界面圧と摩擦速度との関
係を求めた。結果を第４図に示す。(Example 3) The relationship between the critical surface pressure that causes seizure and the friction speed was determined for the worm wheel of the present invention and the conventional worm wheel. The results are shown in Figure 4.
曲線の下側は焼付きを生ぜず、上側は焼付きを生しるこ
とを意味している。また曲線が高面圧側にあるほど焼付
きにくいことを意味している。第４図より本発明のウオ
ームホイールは、他のウオームホイールに比べて、大き
い面圧を加えても焼付きにくいことが明らかである。The lower side of the curve means that no burn-in occurs, and the upper side means that burn-in occurs. Also, the higher the surface pressure of the curve, the less likely it is to seize. From FIG. 4, it is clear that the worm wheel of the present invention is less likely to seize even when a large surface pressure is applied, compared to other worm wheels.
（実施例４）
本発明のウオームホイール（Ｎα１）、従来のウオーム
ホイール（Ｎα６）における、ウオームとホイールの摺
動面の圓粗さの変化による焼付き限界を求めた。その結
果を第５図に示す。第５図において実線はＮα１の本発
明のウオームホイールを示し、破線は従来のウオームホ
イールの結果を示す。(Example 4) The seizure limit was determined based on the change in the round roughness of the sliding surface between the worm and the wheel in the worm wheel of the present invention (Nα1) and the conventional worm wheel (Nα6). The results are shown in FIG. In FIG. 5, the solid line shows the worm wheel of the present invention with Nα1, and the broken line shows the results of the conventional worm wheel.
本発明のウオームホイールでは、５ミクロン以下の面粗
さにすることにより、従来のウオームホイールに比べ特
に耐焼付性の向上がみられる。なおウオームとホイール
の摺動面の面粗さが１０ミクロンであっても、従来はウ
オームホイールに比べ耐焼付性はよい結果を示している
。The worm wheel of the present invention has particularly improved seizure resistance compared to conventional worm wheels by having a surface roughness of 5 microns or less. Note that even if the surface roughness of the sliding surface between the worm and the wheel is 10 microns, the seizure resistance has been shown to be better than that of conventional worm wheels.
以上説明したように本発明に係るウオームホイ−ルによ
れば、ウオームとホイールの摺動面における耐摩耗性お
よび耐焼付性が向上する。したがって、ウオームホイー
ルにより高い負荷をかけることが可能になり、ウオーム
ホイールの小型化および好高率化を達成することができ
る。As explained above, according to the worm wheel according to the present invention, the wear resistance and seizure resistance of the sliding surface between the worm and the wheel are improved. Therefore, it is possible to apply a higher load to the worm wheel, and the worm wheel can be made smaller and more efficient.
第１図は、本発明に係る減速機用ウオームホイールの外
観斜視図、第２図はウオームホイールにおける摩擦距離
と摩耗量との関係を示すグラフ、第３図はそのイオンの
時間的変化を示すグラフ、第４図はウオームホイールの
摩擦速度と面圧との関係を示すグラフ、第５図はその摩
擦速度と面圧との関係を示すグラフである。
１・・・ウオーム、２・・・ホイール歯部、３・・・ホ
イールボス部、４・・・ケース、５・・・給油口、６・
・・ホイール軸部。Fig. 1 is an external perspective view of a worm wheel for a reducer according to the present invention, Fig. 2 is a graph showing the relationship between the friction distance and the amount of wear in the worm wheel, and Fig. 3 shows the temporal change of the ions. FIG. 4 is a graph showing the relationship between the friction speed and surface pressure of the worm wheel, and FIG. 5 is a graph showing the relationship between the friction speed and surface pressure of the worm wheel. DESCRIPTION OF SYMBOLS 1... Worm, 2... Wheel tooth part, 3... Wheel boss part, 4... Case, 5... Fuel filler port, 6...
...Wheel shaft.
Claims (1)
ォームの歯部とかみ合う歯を表面に有するホィールとを
具備し、油潤滑状態で使用される減速機用ウォームホィ
ールにおいて、当該ホィールの少なくとも歯部または当
該ウォームの少なくとも歯部の一方が、４〜１２重量％
のアルミニウム、１〜１０重量％の鉄珪化物、０．１〜
１重量％の固溶シリコン、および１〜７重量％のニッケ
ルを含み、残部が実質的に銅から構成され、他方が鋼か
ら構成されていることを特徴とするウォームホィール。 ２、特許請求の範囲第１項において、前記ホィールの歯
部のウォームとの摺動面の面粗さが５ミクロン以下であ
り、かつ前記ウォームの歯部のホィールとの摺動面の面
粗さが５ミクロン以下であることを特徴とする減速機用
ウォームホィール。[Claims] 1. A worm wheel for a reducer that is used in an oil-lubricated state, comprising a worm having spiral teeth on its surface and a wheel having teeth on its surface that mesh with the teeth of the worm. , at least one of the teeth of the wheel or at least the teeth of the worm contains 4 to 12% by weight.
of aluminum, 1 to 10% by weight of iron silicide, 0.1 to
A worm wheel comprising 1% by weight of silicon in solid solution and 1 to 7% by weight of nickel, the remainder consisting essentially of copper and the other consisting of steel. 2. In claim 1, the surface roughness of the sliding surface of the teeth of the worm with the worm is 5 microns or less, and the surface roughness of the sliding surface of the tooth of the worm with the wheel A worm wheel for a reducer characterized by a diameter of 5 microns or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7609686A JPS62233563A (en) | 1986-04-02 | 1986-04-02 | Worm wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7609686A JPS62233563A (en) | 1986-04-02 | 1986-04-02 | Worm wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62233563A true JPS62233563A (en) | 1987-10-13 |
Family
ID=13595320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7609686A Pending JPS62233563A (en) | 1986-04-02 | 1986-04-02 | Worm wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62233563A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5472717A (en) * | 1977-11-24 | 1979-06-11 | Chuetsu Metal Works | Brass alloy with excellent weld and abrassion resistance |
| JPS56133443A (en) * | 1980-03-24 | 1981-10-19 | Honda Motor Co Ltd | Wear resistant copper alloy |
| JPS5821016A (en) * | 1981-07-27 | 1983-02-07 | Mamoru Tsuchiya | Variable crankshaft |
| JPS59192418A (en) * | 1983-04-15 | 1984-10-31 | Hitachi Ltd | Honing tool for spiral bevel gear |
-
1986
- 1986-04-02 JP JP7609686A patent/JPS62233563A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5472717A (en) * | 1977-11-24 | 1979-06-11 | Chuetsu Metal Works | Brass alloy with excellent weld and abrassion resistance |
| JPS56133443A (en) * | 1980-03-24 | 1981-10-19 | Honda Motor Co Ltd | Wear resistant copper alloy |
| JPS5821016A (en) * | 1981-07-27 | 1983-02-07 | Mamoru Tsuchiya | Variable crankshaft |
| JPS59192418A (en) * | 1983-04-15 | 1984-10-31 | Hitachi Ltd | Honing tool for spiral bevel gear |
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