JPS5873990U

JPS5873990U - Rotor in screw compressor or screw blower

Info

Publication number: JPS5873990U
Application number: JP16942881U
Authority: JP
Inventors: 雅之武石; 秀一長橋; 幸裕小島
Original assignee: 北越工業株式会社
Priority date: 1981-11-16
Filing date: 1981-11-16
Publication date: 1983-05-19

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図１ま圧縮機の横断面図、第２図は従来例を示す部
分拡大断面図〈第３図は本考案の第１実施例を示す第１
図■−■線断面図、′第４図は、第３図の部分拡大断面
図、第５図は本考案の他の実施例を示すロータのねじれ
線にそったシールチップの部分拡大断面図、第６図はシ
ールチップの他の形状を示す部分拡大断面図である。１１．１２・・・端壁、１３・・・ケーシング、２０゜
２１・・・ランド、２２．２３・・・中間溝、２４．２
５・・・ロータ、３０・・・シールストリップ部、３２
゜３３・・・溝条、３４・・・他の溝条、４０．　４１
．　４２・・・シールチップ。補正　昭５’ｌ　　Ｌ　２２実用新案登録請求の範囲を次のように補正する。Ｏ実用新案登録請求の範囲一（１）二個め互いに交差する内径から成る平行なシー
リンダ−と、該シリンダーの両端に設けられた端壁によ
り作用空間の外壁を形成するケーシングと前記シリンダ
ーにほぼ内接する外径を有し、相互に噛合するよう前記
シリンダー内に軸承された雌雄のらせん状ランドを有す
る二個のロータを具備するスクリュー圧縮機又はスクリ
ュー送風機において、前記雌雄のロータのらせん状ランドの先端外表面にそれ
ぞれ一連の溝条全穿設し、該溝条に−前記シリンダーを
成すケーシング材料より軟質の合成樹脂、又は自己潤滑
性材料から成るシールチップを連続して且つ前記ランド
の外表面より突出するよう設けたことを特徴とするスク
リュー圧縮機又はスクリュー送風機におけるロー（２）
前記シールチップを一連に成型しｔ成る実用新案登録語
＊の範囲第１項記載のスクリュー圧　”縮機又はスクリ
ュー送風機におけるロータ。（３）前記シールチップを、前記ロータの軸方向に分割
形成して成る実用新案登録請求の範囲第１項記載のスク
リュー圧縮機又はスクリュー送風機におけるロータ。 −（４）前記シールチップの材料をケーシングとロータ
とがかじり接触した場合にケーシング材料より軟質とな
る合成樹脂としたことを特徴とする−　実用新案登録請
求の範囲第１項第２項又は第３項記載のスレリュー圧縮
機又はスクリュー送風機におけるロータ。（５）前記シールチップが減摩メタル、−含油焼結金属
、炭素材料等の自己潤滑性材料から成ることを特徴とす
る実用新案登録請求の範囲第１項又は第３項記載のスク
リュー圧縮機又はスクリュー送風機におるロータ。Fig. 1 is a cross-sectional view of a compressor, Fig. 2 is a partially enlarged sectional view showing a conventional example, and Fig. 3 is a cross-sectional view showing a conventional compressor.
Fig. 4 is a partially enlarged sectional view of Fig. 3, and Fig. 5 is a partially enlarged sectional view of the seal chip along the torsion line of the rotor, showing another embodiment of the present invention. , FIG. 6 is a partially enlarged sectional view showing another shape of the seal chip. 11.12... End wall, 13... Casing, 20° 21... Land, 22.23... Intermediate groove, 24.2
5... Rotor, 30... Seal strip section, 32
゜33... Grooves, 34... Other grooves, 40. 41
．． 42... Seal chip. Amendment 1975 L 22 The scope of claims for utility model registration is amended as follows. O Utility Model Registration Claims 1 (1) A parallel cylinder consisting of two mutually intersecting inner diameters, a casing that forms an outer wall of a working space by end walls provided at both ends of the cylinder, and a casing that is substantially connected to the cylinder. A screw compressor or screw blower comprising two rotors having male and female helical lands having inscribed outer diameters and being journalled in the cylinder so as to mesh with each other, wherein the helical lands of the male and female rotors A series of grooves are completely drilled on the outer surface of each tip, and a seal chip made of a synthetic resin or a self-lubricating material that is softer than the casing material forming the cylinder is continuously inserted into the groove and outside the land. Row (2) in a screw compressor or screw blower characterized by being provided so as to protrude from the surface
A rotor in a screw pressure compressor or a screw blower according to item 1 of the Utility Model Registration Term *, which is formed by molding the seal chip in series. A rotor in a screw compressor or screw blower according to claim 1, which comprises a utility model registration claim.-(4) A synthetic resin that becomes softer than the casing material when the casing and the rotor come into contact with the material of the seal chip. - A rotor in a threaded compressor or a screw blower according to claim 1, item 2 or 3, characterized in that the seal tip is made of anti-friction metal, - oil-impregnated sintered. A rotor for a screw compressor or screw blower according to claim 1 or 3, characterized in that the rotor is made of a self-lubricating material such as metal or carbon material.

Claims

[Scope of utility model registration request]

(1) A parallel cylinder consisting of two mutually intersecting inner diameters, a casing forming an outer wall of a working space by end walls provided at both ends of the cylinder, and an outer diameter substantially inscribed in the cylinder, and mutually intersecting. In a screw compressor or a screw blower comprising two rotors having male and female helical lands journalled in the cylinder so as to mesh with each other, a series of grooves are provided on the outer surfaces of the tips of the helical lands of the male and female rotors, respectively. A seal chip made of a synthetic resin or self-lubricating material that is softer than the gauging material forming the cylinder is provided in the groove so as to continuously protrude from the outer surface of the land. Features a screw compressor or screw blower.

(2) The rotor for a screw compressor or screw blower according to claim 1, which is a utility model registered and is formed by molding the seal chips in series.

(3) A rotor in a screw compressor or screw blower according to claim 1, wherein the seal chip is divided in the axial direction of the rotor.

(4) The material of the seal chip is made of a synthetic resin that is softer than the casing material when the casing and rotor come into contact with each other. Claims 1, 2 or 3 A rotor in the screw compressor or screw blower described above.

(5) The seal tip is a friction-reducing metal, an oil-impregnated sintered metal,
A screw compressor or a screw blower according to claim 1 or 3, characterized in that the rotor is made of a self-lubricating material such as a carbon material.