JPH0577592U

JPH0577592U - Eyebrow type twin-screw positive displacement pump for high speed

Info

Publication number: JPH0577592U
Application number: JP1262591U
Authority: JP
Inventors: 康名横井
Original assignee: Anlet Co Ltd
Current assignee: Anlet Co Ltd
Priority date: 1991-02-14
Filing date: 1991-02-14
Publication date: 1993-10-22

Abstract

(57)【要約】【目的】まゆ型二軸容積ポンプのタイミングギャを中間
のアイドルギャも含めて四個にして、ギャ径、周速、運
転騒音等の各々を減少し、大型のまゆ型二軸ブロワー、
真空ポンプなどの容積ポンプに適応させることを目的と
するものである。【構成】真空または圧縮に使用するまゆ型二軸容積ポン
プであって、駆動軸１と従動軸２の間に中間軸５及び６
を設け、夫々の軸１、５、６、２に、順次に噛み合い、
且つ周速を低下した合計四個のタイミングギャ１ａ、５
ａ、６ａ、２ａを取付ける。 (57) [Summary] [Purpose] A large eyebrows type eyebrow type twin-screw positive displacement pump with four timing gears including an intermediate idle gear to reduce gear diameter, peripheral speed, operating noise, etc. Biaxial blower,
The purpose is to adapt to a positive displacement pump such as a vacuum pump. [Construction] A cocoon-type twin-screw positive displacement pump used for vacuum or compression, wherein intermediate shafts 5 and 6 are provided between a drive shaft 1 and a driven shaft 2.
Is provided, and the shafts 1, 5, 6, 2 are sequentially meshed with each other,
In addition, a total of four timing gears 1a and 5 with reduced peripheral speed
Install a, 6a and 2a.

Description

【考案の詳細な説明】[Detailed description of the device]

【０００１】[0001]

【産業上の利用分野】[Industrial applications]

本考案は高速用まゆ型二軸容積ポンプに係り、駆動軸の回転を従動軸に伝達するため使用するタイミングギャが従来は駆動軸と従動軸に夫々取付けた同形であったため、殊に大形ポンプであるとき前記ギャが大径になり、周速が大きく、騒音、振動が激しくなる欠点があるのを除き、前記の二軸の外に二個の中間軸を設け、駆動軸から二個の中間軸、次いで従動軸にと順次に噛合う四個のタイミングギャを使用してそれぞれのギャ径及び周速を小さくし、振動、騒音等の欠点を除くと共に、タイミングギャの前記周速の四軸分担により特に高速用に適応させたもので、火力発電で石油や石炭の燃焼使用に基づいて発生するＣＯ₂の回収のためＰ.Ｓ.Ａ法に使用する高速大形まゆ型二軸容積ポンプ、真空度が約 0.01〜100 Torr等での高真空域で使用するブースターポンプ等に適用できる。The present invention relates to a high-speed eyebrow type twin-screw positive displacement pump, and in particular, since the timing gear used to transmit the rotation of the drive shaft to the driven shaft has the same shape attached to the drive shaft and the driven shaft, Except for the drawbacks that the gear has a large diameter when the pump is a large pump, the peripheral speed is high, and noise and vibration are severe, two intermediate shafts are installed outside the above two shafts to drive the pump. By using four timing gears that sequentially mesh with the shaft, two intermediate shafts, and then with the driven shaft, the gear diameter and peripheral speed of each are reduced to eliminate the drawbacks such as vibration and noise, and the timing gear is used. It is especially adapted for high speeds by sharing the above four peripheral speeds of the peripheral speed, and is used for the P.S.A. method for the recovery of CO ₂ generated by the combustion and use of oil and coal in thermal power generation. Large eyebrows twin-screw positive displacement pump, in a high vacuum range with a vacuum degree of about 0.01-100 Torr It can be applied to booster pumps used.

【０００２】[0002]

【従来の技術】[Prior Art]

まゆ型二軸容積ポンプａは既述のように、且つ図３に示すように駆動軸ｂの回転を従動軸ｃに伝達するため使用するタイミングギャｂ′、ｃ′は同じ外径であって、駆動軸ｂと従動軸ｃに夫々固着したものであるので、殊に大形ポンプであるとき、前記ギャｂ′、ｃ′が大径になり、周速も大きくなって、騒音、振動が激しくなる欠点があった。 As described above, and as shown in FIG. 3, the eyebrow type twin-screw positive displacement pump a has the same outer diameter as the timing gears b ′ and c ′ used for transmitting the rotation of the drive shaft b to the driven shaft c. Since the drive shaft b and the driven shaft c are fixed to each other, especially in the case of a large pump, the gears b ′ and c ′ have a large diameter, the peripheral speed becomes large, and noise is increased. However, there was a drawback that the vibration became severe.

【０００３】[0003]

【考案が解決しようとする課題】[Problems to be solved by the device]

本考案は前記に鑑み、タイミングギャを中間のアイドルギャも含めて四個にして、ギャ径、周速、運転騒音等の各々を減少して殊に高速、大型のまゆ型二軸ブロワー、真空ポンプなどの容積ポンプに適応させることを解決の課題とし、考案の目的とするものである。 In view of the above, the present invention has four timing gears, including an intermediate idle gear, to reduce each gear diameter, peripheral speed, operation noise, etc. The problem to be solved is to adapt it to volumetric pumps such as vacuum pumps, and it is the purpose of the invention.

【０００４】[0004]

【課題を解決するための手段】[Means for Solving the Problems]

本考案の高速用まゆ型二軸容積ポンプは、真空または圧縮に使用するまゆ型二軸容積ポンプであって、駆動軸１と従動軸２の間に中間軸５及び６を設け、夫々の軸１、５、６、２に順次に噛み合い、且つ周速を低下した合計四個のタイミングギャ１ａ、５ａ、６ａ、２ａを取付けたことを特徴とするもので、既述した目的に合致するものである。 The high-speed eyebrow twin-screw positive displacement pump of the present invention is a eyebrow twin-screw positive displacement pump used for vacuum or compression, in which intermediate shafts 5 and 6 are provided between the drive shaft 1 and the driven shaft 2, respectively. It is characterized in that a total of four timing gears 1a, 5a, 6a and 2a, which are sequentially engaged with 1, 5, 6, and 2 and have a reduced peripheral speed, are attached, and they match the above-mentioned objectives. It is a thing.

【０００５】[0005]

【作用】[Action]

本考案の高速用まゆ型二軸容積ポンプは各タイミングギャ１ａ、２ａ、及びタイミングギャ５ａ、６ａは同じ外径、同じ歯数でなければならないが、全部を実施例のように同じ外径、同じ歯数にする必要はなく、順次の噛合いができればよい。しかしタイミングギャ５ａ、６ａをアイドルギャとして介入することにより、夫々の周速が前記した従来のタイミングギャ装置より顕しく減少し、それに伴う運転上、経済上の有利な作用を生ずる。 In the high speed eyebrow type twin-screw positive displacement pump of the present invention, the timing gears 1a and 2a and the timing gears 5a and 6a must have the same outer diameter and the same number of teeth, but all of them have the same outer diameter as in the embodiment. , It is not necessary to have the same number of teeth, but it is sufficient if they can be meshed sequentially. However, by interposing the timing gears 5a and 6a as idle gears, the peripheral speeds of the respective timing gears are significantly reduced as compared with the above-described conventional timing gear device, and the operationally and economically advantageous effects are produced accordingly.

【０００６】[0006]

【実施例】【Example】

図１、２は本考案の一実施例を示し、３葉型の各まゆ型ローター１１の駆動軸１と、従動軸２はタイミングケース３の区劃壁面４に表わされる。前記壁面４には２個の中間軸５、６を取付け、駆動軸１、中間軸５、６、従動軸２に順次に噛み合う同じ外径のタイミングギャ１ａ、５ａ、６ａ、２ａを取付ける。タイミングギャ１ａ、２ａは前記の軸１、２に夫々固着であるが、タイミングギャ５ａ、６ａはアイドルギャであるから、夫々ベアリングを介して中間軸５、６に回転勝手に取付ける。 1 and 2 show an embodiment of the present invention, in which a drive shaft 1 and a driven shaft 2 of each of the three-leaf type eyebrow rotors 11 are represented by a partition wall surface 4 of a timing case 3. Two intermediate shafts 5 and 6 are attached to the wall surface 4, and timing gears 1a, 5a, 6a and 2a of the same outer diameter which are sequentially meshed with the drive shaft 1, the intermediate shafts 5 and 6, and the driven shaft 2 are attached. . The timing gears 1a and 2a are fixed to the shafts 1 and 2, respectively, but since the timing gears 5a and 6a are idle gears, they are rotationally attached to the intermediate shafts 5 and 6 via bearings.

【０００７】[0007]

【考案の効果】[Effect of the device]

タイミングギャを図３に例示した従来の構成にしていると、圧縮または排気用ブロワー、真空ポンプ等に使用される大形のまゆ型二軸容積ポンプではそのタイミングギャの大径化、高周速化、高騒音、高振動により前記したＣＯ₂回収等のポンプを構成できないが、本考案の四個タイミングギャを使用する構成により各ギャの外径を小径化し、さらに周速の低速化とバランス的負荷負担とにより、歯車の歯の切損等の損傷を防ぎ、且つポンプ重量の低下により河川浚渫車両積載用等に格段の利益があり、大パワーが必要な前記ＣＯ₂ガス回収ポンプにも採用可能になる等の効果がある。When the timing gear has the conventional configuration illustrated in FIG. 3, the large-sized eyebrow type twin-screw positive displacement pump used for a compression or exhaust blower, a vacuum pump, etc. has a larger diameter and higher peripheral speed. Although it is not possible to construct a pump for CO ₂ recovery as described above due to higher efficiency, higher noise, and higher vibration, the outer diameter of each gear is reduced by the configuration using the four timing gears of the present invention, and the peripheral speed is reduced and balanced. Of the CO ₂ gas recovery pump that requires large power, because it prevents damage such as tooth breakage of gears due to static load, and has a significant benefit for loading river dredging vehicles due to reduction of pump weight. Can also be adopted.

【図面の簡単な説明】[Brief description of drawings]

【図１】本考案を例示した斜視図FIG. 1 is a perspective view illustrating the present invention.

【図２】同正面図FIG. 2 is a front view of the same.

【図３】従来構造の正面図でタイミングギャカバーを省
略してある。FIG. 3 is a front view of a conventional structure in which a timing cover is omitted.

【符号の説明】[Explanation of symbols]

１駆動軸、２従動軸、３タイミングケース、
４壁面、５、６中間軸、１ａ、５ａ、６ａ、２
ａタイミングギャ、1 drive shaft, 2 driven shaft, 3 timing case,
4 wall surfaces, 5, 6 intermediate shaft, 1a, 5a, 6a, 2
a Timing guy,

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

【請求項１】真空または圧縮に使用するまゆ型二軸容
積ポンプであって、駆動軸１と従動軸２の間に中間軸５
及び６を設け、夫々の軸１、５、６、２に、順次に噛み
合い且つ周速を低下した合計四個のタイミングギャ１
ａ、５ａ、６ａ、２ａを取付けたことを特徴とする高速
用まゆ型二軸容積ポンプ。1. A cocoon-type biaxial positive displacement pump used for vacuum or compression, wherein an intermediate shaft 5 is provided between a drive shaft 1 and a driven shaft 2.
And 6 are provided, and a total of four timing gears 1 in which the shafts 1, 5, 6, and 2 are sequentially meshed and the peripheral speed is reduced.
A high-speed eyebrow type twin-screw positive displacement pump having a, 5a, 6a, and 2a attached.