JPH0123909B2 - - Google Patents
Info
- Publication number
- JPH0123909B2 JPH0123909B2 JP17319384A JP17319384A JPH0123909B2 JP H0123909 B2 JPH0123909 B2 JP H0123909B2 JP 17319384 A JP17319384 A JP 17319384A JP 17319384 A JP17319384 A JP 17319384A JP H0123909 B2 JPH0123909 B2 JP H0123909B2
- Authority
- JP
- Japan
- Prior art keywords
- brush
- damper material
- motor
- damper
- hollow spheres
- 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
- 239000000463 material Substances 0.000 claims description 24
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 description 10
- 238000003466 welding Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000000806 elastomer Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000002390 adhesive tape Substances 0.000 description 5
- 229920002633 Kraton (polymer) Polymers 0.000 description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 238000007665 sagging Methods 0.000 description 3
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000002671 adjuvant Substances 0.000 description 2
- -1 alicyclic hydrocarbons Chemical class 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 239000004604 Blowing Agent Substances 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 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
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000001282 iso-butane Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Landscapes
- Motor Or Generator Current Collectors (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はダンパー材を刷子に溶着した直流モー
タの刷子防振装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a brush vibration isolating device for a DC motor in which a damper material is welded to the brush.
従来この種の刷子防振装置では刷子にダンパー
材としてゴム材を両面粘着テープで張り付けてい
た。
Conventionally, in this type of brush vibration isolator, a rubber material was attached to the brush as a damper material using double-sided adhesive tape.
従つて自動化が難しい。粘着テープは夏場
べとついて作業が困難になる。ゴム材を使用し
ている為整流子に悪影響を与える硫化ガスが出
る。粘着テープが高温使用時にダレを生じ、刷
子圧力が変化する等の不具合があつた。 Therefore, automation is difficult. Adhesive tape becomes sticky in the summer, making it difficult to work with. Since rubber material is used, sulfide gas is emitted which has a negative effect on the commutator. There were problems such as the adhesive tape sagging when used at high temperatures and the brush pressure changing.
本発明は上記不具合に鑑み、ダンパー材を改良
して刷子に張り付けを機械で自動化可能にして生
産性を向上し、刷子や整流子等の寿命を延長さ
せ、防振効果の向上を図つた直流モータの刷子防
振装置を提案することである。
In view of the above-mentioned problems, the present invention improves the damper material and makes it possible to automate the pasting on brushes by machine, thereby improving productivity, extending the life of brushes, commutators, etc., and improving the vibration-proofing effect. The purpose of this invention is to propose a motor brush vibration isolator.
本発明は、整流子に摺接する刷子にダンパーを
設けた直流モータにおいて、熱可塑性エラストマ
ーを主成分とし、このエラストマー中に粘着付与
剤及び微小中空球体を混合したダンパー材を上記
刷子に熱溶着または超音波溶着により一体的に設
けたことにある。
The present invention provides a direct current motor in which a damper is provided on a brush that comes into sliding contact with a commutator, and the damper material is made of a thermoplastic elastomer as a main component, and a tackifier and micro hollow spheres are mixed in the elastomer. The reason is that it is integrally installed by ultrasonic welding.
以下、図示の一実施例で本発明を説明する。第
１図で直流モータＭは有底筒状のステータケース
１の内周面に円環状の永久磁石からなるステータ
２を嵌着し、このステータ２の内部に僅かな空隙
を介してロータ３を配設し、このロータ３には複
数の図示しないスロツトを設けて駆動コイル４を
巻回し、ロータ３の中心には回転軸５を装着し、
この回転軸５上に整流子６を並設固定し、整流子
６の周面には側板７に絶縁板８を介して一端を取
り付けた一対の刷子９，９の先端を摺接してい
る。上記刷子９，９には第２図のようにダンパー
材１０を一体的に溶着固定して刷子防振装置を構
成している。
The present invention will be explained below with reference to an illustrated embodiment. In Fig. 1, a DC motor M has a stator 2 made of an annular permanent magnet fitted on the inner circumferential surface of a stator case 1 having a bottomed cylindrical shape, and a rotor 3 is inserted into the stator 2 through a small gap. The rotor 3 is provided with a plurality of slots (not shown) and a driving coil 4 is wound therein, and a rotating shaft 5 is mounted at the center of the rotor 3.
A commutator 6 is arranged and fixed in parallel on the rotating shaft 5, and the tips of a pair of brushes 9, 9, each having one end attached to a side plate 7 via an insulating plate 8, are in sliding contact with the circumferential surface of the commutator 6. As shown in FIG. 2, a damper material 10 is integrally welded and fixed to the brushes 9, 9 to constitute a brush vibration isolator.
上記側板７は平板状の鉄板からなり、中央に凹
所７ａを形成してこの凹所７ａに一方の軸受１１
を装着し、ステータケース１に設けた図示しない
軸受とで上記回転軸５を軸承している。又、凹所
７ａの底部にはスラスト座板１２を設けて回転軸
５の先端を当接してスラスト軸受を構成してい
る。 The side plate 7 is made of a flat iron plate, and has a recess 7a formed in the center, and one of the bearings 11 is placed in the recess 7a.
The rotary shaft 5 is supported by a bearing (not shown) provided in the stator case 1. Further, a thrust seat plate 12 is provided at the bottom of the recess 7a, and the tip of the rotary shaft 5 is brought into contact with the thrust seat plate 12 to form a thrust bearing.
上記ダンパー材１０は熱可塑性のスチレン系エ
ラストマーを主成分とし、この主成分中に粘着付
与剤と微小中空球体と補剤のカーボンブラツク、
老化防止剤、耐候剤を配合して混合成形してい
る。 The damper material 10 has a thermoplastic styrene elastomer as its main component, and this main component includes a tackifier, micro hollow spheres, and carbon black as an adjuvant.
It is mixed and molded with anti-aging agents and weathering agents.
上記粘着付与剤としては次の中から１種又は２
種以上を使用する。 The above tackifier is one or two of the following:
Use more than one species.
(i)脂肪族系炭化水素（例えば商品名エスコレツ
ツ1315）、(ii)脂肪族／脂環族系炭化水素、(iii)脂肪
族／芳香族系炭化水素（例えば商品名エスコレツ
ツ2200）、(iv)芳香族系炭化水素（例えば商品名タ
ツキフアイヤー101）、(v)水添脂肪族系炭化水素
（例えば商品名クイントンＤ−100）、(vi)脂環族系
炭化水素
上記微小中空球体は以下より１種又は２種以上
を混合使用する。 (i) Aliphatic hydrocarbons (e.g. trade name Escorets 1315), (ii) aliphatic/alicyclic hydrocarbons, (iii) aliphatic/aromatic hydrocarbons (e.g. trade name Escorets 2200), (iv) ) aromatic hydrocarbons (e.g. trade name Tatsuki Fire 101), (v) hydrogenated aliphatic hydrocarbons (e.g. trade name Quinton D-100), (vi) alicyclic hydrocarbons The above micro hollow spheres are One or a mixture of two or more of the following may be used.
(i) 無機系微小中空球体 直径30μ〜300μ
（酸化シリコンSiO260〜65％、アルミナ
Al2O327〜33％）
(ii) 有機系微小中空球体 直径5μ〜100μ
（塩化ビニリデン／アクリロニトリルのコーポ
リマーを殻として、発泡剤としてイソブタンを
内包したもの）
配合第１例
上記ダンパー材１０の配合第１例は次の通りで
ある。(i) Inorganic micro hollow spheres diameter 30μ~300μ (silicon oxide SiO 2 60~65%, alumina
(Al 2 O 3 27~33%) (ii) Organic microscopic hollow spheres Diameter 5μ~100μ (A shell made of vinylidene chloride/acrylonitrile copolymer and encapsulated isobutane as a blowing agent) First formulation example Damper material 10 above The first example of the formulation is as follows.
スチレン系エラストマー（例えば商品名クレイト
ンＧ−1651） 100部
水添脂肪族系粘着付与剤（例えば商品名クレイト
ンＤ−100） 50部
有機系微小中空球体（例えば商品名フイライト
200／７） 60部
カーボンブラツク 10部
配合第２例
ダンパー材１０の配合第２例は未膨脹の有機系
微小中空球体をダンパー材として煉り込み、刷子
９に取り付け時に発泡温度120℃、1min〜3min
で加温発泡させ、配合材は次の通りである。Styrenic elastomer (for example, trade name Kraton G-1651) 100 parts Hydrogenated aliphatic tackifier (for example, trade name Kraton D-100) 50 parts Organic microscopic hollow spheres (for example, trade name Filite)
200/7) 60 parts carbon black 10 parts 2nd example of composition The second example of composition of damper material 10 is that unexpanded organic micro hollow spheres are kneaded as a damper material, and when attached to brush 9, the foaming temperature is 120°C for 1 min. 3min
The mixture was heated and foamed using the following ingredients.
熱可塑性エラストマー 100部
粘着付与剤 40部
有機系微小中空球体 300部
カーボンブラツク 100部
上記刷子９にダンパー材１０を溶着する時は第
３図、第４図のようにターミナル１３を溶着機械
の台部に固定して帯状ダンパー材１０を刷子９に
当てて熱又は超音波で溶着し、溶着後ａ線で切断
する。溶着前に切断して短片状のダンパー材を刷
子に溶着してもよい。Thermoplastic elastomer 100 parts Tackifier 40 parts Organic micro hollow spheres 300 parts Carbon black 100 parts When welding the damper material 10 to the brush 9, attach the terminal 13 to the stand of the welding machine as shown in Figures 3 and 4. The band-shaped damper material 10 is fixed to the brush 9 and welded by heat or ultrasonic waves, and after welding, it is cut along the A-line. The damper material may be cut into short strips and welded to the brush before welding.
上記のようにエラストマーを主成分とし、この
エラストマー中に粘着付与剤及び微小中空球体と
補剤を混合して成形したダンパー材１０は微小中
空球体を使用することにより、高耐熱性エラスト
マー（例えば商品名クレイトンＧ−1651）が従来
高硬度の為に使用出来なかつたが、硬度を低下さ
せることが出来て使用可能となり、上記刷子９に
熱溶着または超音波溶着により一体的に溶着する
と、溶着が自動化出来て生産性が向上し、従来の
粘着テープを用いた場合に起る高温雰囲気でのダ
レがなくなつて刷子の寿命が延長され、刷子圧力
の変化が生ぜず、従来のゴム材を使用する場合に
発生する硫化ガス又は塩素ガス等の接点障害を与
えるガスがなくなり信頼性が向上して危険性がな
くなつて刷子の寿命が延長され、防振効果が向上
される。 As described above, the damper material 10, which is formed by molding an elastomer as a main component and mixing a tackifier, micro hollow spheres, and an adjuvant into this elastomer, uses a highly heat resistant elastomer (for example, Previously, Kraton G-1651) could not be used due to its high hardness, but now it can be used by lowering its hardness, and when it is integrally welded to the brush 9 by heat welding or ultrasonic welding, welding is prevented. It can be automated, improving productivity, eliminating sagging in high temperature environments that occurs when using conventional adhesive tape, extending the life of the brush, eliminating changes in brush pressure, and using conventional rubber material. There is no gas such as sulfide gas or chlorine gas that is generated when brushing, which causes contact failure, improving reliability, eliminating danger, extending the life of the brush, and improving the vibration-proofing effect.
本発明は上述のようにダンパー材を改良して刷
子に機械で張り付ける自動化可能として生産性を
向上し、ダンパー材によつて従来のゴム材による
硫化ガス又は塩素ガス等の発生がないので接点障
害の危険性がなくなり、粘着テープの高温雰囲気
におけるダレがなくなつて刷子の寿命が延長さ
れ、防振効果が向上される等実用上優れた効果を
奏する直流モータの刷子防振装置を提供すること
が出来る。
As mentioned above, the present invention improves productivity by improving the damper material and making it possible to automate pasting it onto the brush by machine.The damper material eliminates the generation of sulfide gas or chlorine gas caused by conventional rubber materials, so there is no contact point. To provide a brush vibration isolating device for a DC motor, which has excellent practical effects such as eliminating the risk of failure, eliminating sagging of adhesive tape in a high-temperature atmosphere, extending the life of the brush, and improving the vibration isolation effect. I can do it.
図面は本発明実施例が示され、第１図は直流モ
ータの刷子防振装置の断面側面図、第２図は刷子
にダンパー材が固定された外観斜視図、第３図は
刷子とダンパー材の側面図、第４図は刷子とダン
パー材の平面図である。
Ｍ……直流モータ、６……整流子、９……刷
子、１０……ダンパー材。
The drawings show an embodiment of the present invention, in which Fig. 1 is a cross-sectional side view of a brush vibration isolator for a DC motor, Fig. 2 is an external perspective view of a damper material fixed to a brush, and Fig. 3 is a brush and damper material. FIG. 4 is a plan view of the brush and damper material. M...DC motor, 6...Commutator, 9...Brush, 10...Damper material.
Claims (1)
流モータにおいて、熱可塑性エラストマーを主成
分とし、このエラストマー中に粘着付与剤及び微
小中空球体を混合したダンパー材を上記刷子に熱
溶着または超音波溶着により一体的に設けたこと
を特徴とする直流モータの刷子防振装置。1. In a DC motor in which a damper is provided on a brush that slides on a commutator, a damper material that is mainly composed of a thermoplastic elastomer and in which a tackifier and microscopic hollow spheres are mixed is thermally or ultrasonically welded to the brush. A brush vibration isolator for a DC motor, characterized in that it is integrally provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17319384A JPS6151782A (en) | 1984-08-22 | 1984-08-22 | Brush vibration preventing unit for dc motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17319384A JPS6151782A (en) | 1984-08-22 | 1984-08-22 | Brush vibration preventing unit for dc motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6151782A JPS6151782A (en) | 1986-03-14 |
| JPH0123909B2 true JPH0123909B2 (en) | 1989-05-09 |
Family
ID=15955816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17319384A Granted JPS6151782A (en) | 1984-08-22 | 1984-08-22 | Brush vibration preventing unit for dc motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6151782A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2769713B2 (en) * | 1989-04-01 | 1998-06-25 | 東海ゴム工業株式会社 | Damping material |
-
1984
- 1984-08-22 JP JP17319384A patent/JPS6151782A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6151782A (en) | 1986-03-14 |
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