JPS622157B2 - - Google Patents
Info
- Publication number
- JPS622157B2 JPS622157B2 JP16028484A JP16028484A JPS622157B2 JP S622157 B2 JPS622157 B2 JP S622157B2 JP 16028484 A JP16028484 A JP 16028484A JP 16028484 A JP16028484 A JP 16028484A JP S622157 B2 JPS622157 B2 JP S622157B2
- Authority
- JP
- Japan
- Prior art keywords
- wall
- working space
- pressure stage
- rotor
- main casing
- 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
- 238000003780 insertion Methods 0.000 claims description 13
- 230000037431 insertion Effects 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000005192 partition Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 206010067482 No adverse event Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Rotary-Type Compressors (AREA)
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、無給油式のスクリユー流体機械に関
する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an oil-free screw fluid machine.
無給油式スクリユー流体機械は、作動空間が無
潤滑なので、おすロータと、これに噛合つて回転
するめすロータとの接触を避けるため、両ロータ
間に対のタイミングギヤを設けている。
Since the operating space of the oil-free screw fluid machine is lubricant-free, a pair of timing gears is provided between the male rotor and the female rotor that rotates in mesh with the male rotor in order to avoid contact between the male rotor and the female rotor.
そして、タイミングギヤを両ロータに締結する
際、めすロータとおすロータとの間に隙間ゲージ
をはさみ、両ロータ間の隙間を均一にした後にタ
イミングギヤを締結している。 When the timing gear is fastened to both rotors, a gap gauge is inserted between the female rotor and the male rotor to equalize the gap between the two rotors before the timing gear is fastened.
従来、隙間ゲージを両ロータ間にさし込む際、
吐出口から隙間ゲージを挿入していたが、吐出口
の位置によつては、両ロータ間に確実に挿入する
だけの大きさを確保できない。また、ロータ寸法
の小さいものや吸入圧力に対する吐出圧力の比が
大きいものは、吐出口が小さくなるため確実に隙
間ゲージをさし込むのに必要な大きさを確保でき
ない問題がある。 Conventionally, when inserting a feeler gauge between both rotors,
A gap gauge was inserted from the discharge port, but depending on the position of the discharge port, it was not possible to secure a size sufficient to reliably insert the gap gauge between the two rotors. Furthermore, if the rotor size is small or if the ratio of the discharge pressure to the suction pressure is large, the discharge port becomes small, so there is a problem that it is not possible to secure the size necessary to reliably insert the feeler gauge.
本発明の目的は、ケーシングに両ロータを組付
けた状態で容易にタイミングギヤの位置調整が可
能なスクリユー流体機械を提供することにある。
An object of the present invention is to provide a screw fluid machine in which the position of a timing gear can be easily adjusted with both rotors assembled to a casing.
本発明の特徴は、メインケーシングの吸入領域
に、メインケーシング壁を貫通して外部からメイ
ンケーシング内の作動空間まで達するゲージ挿入
用穴を有し、このゲージ挿入用穴を塞いでいる着
脱可能は盲部材を有するものである。
A feature of the present invention is that the suction area of the main casing has a gauge insertion hole that penetrates the main casing wall and reaches the working space inside the main casing from the outside, and a removable gauge that is blocking this gauge insertion hole. It has a blind member.
吸入領域は、ロータに面している面積が、吐出
口のそれに比べて広いので、隙間ゲージ類を両ロ
ータ間にさし込むのに充分な面積をもつた穴を設
置することは容易である。 Since the area of the suction area facing the rotor is wider than that of the discharge port, it is easy to install a hole with a sufficient area to insert a feeler gauge between the two rotors. .
以下本発明の一実施例を第１図〜第５図により
説明する。
An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.
第１図〜第４図は本発明の第１実施例である。 1 to 4 show a first embodiment of the present invention.
ケーシングはメインケーシング１、吸込側端面
ケーシング２、吐出側端面ケーシング３からな
り、互にボルトにより結合され、一体になつてい
る。メインケーシング１は、外壁４の内側に外壁
４からある距離だけ離れた位置に内壁５が配置さ
れ、外壁４と内壁５との間には両壁４，５を連結
するとともに、外壁４と内壁５との間の空間を複
数の小空間に区画する複数のリブ６，６ａ〜６ｇ
が設けられている。内壁５の内部には、交差する
２つの円筒形孔からなる作動空間が２個設置さ
れ、一方の作動空間７は低圧段用で、一部が内壁
５を兼用している壁８によつて形成され、他方の
作動空間９は高圧段用で、一部が内壁５を兼用し
ている壁１０によつて形成されている。低圧段作
動空間７には吐出口１１を介して低圧段吐出通路
１２、高圧段作動空間９には吐出口１３を介して
高圧段吐出通路１４が連られて設けられている。
これら両吐出通路１２，１４は内壁５の内部に設
置されている。前記外壁４と内壁５との間の複数
の小空間のうち、小空間１５，１６，１７，１８
には伝熱管群１５ｔ，１６ｔ，１７ｔ，１８ｔが
配置され、そして小空間１５，１６は低圧段から
高圧段間に流れる圧縮ガスを冷却する中間冷却器
ICとして用いられ、空間１７，１８は高圧段か
ら吐出される圧縮ガスを冷却する後置冷却器AC
として用いられる。空間１９は、中間冷却器IC
の空間１６から出た圧縮ガスを高圧段作動空間９
の吸入通路に導くための戻り通路として用いられ
る。また空間２０は後置冷却器ACの小空間１８
から出た圧縮ガスを排出口まで導く通路として用
いられる。これらの両通路１９，２０は、必らず
必要な通路でなく、中間冷却器ICの小空間１６
の出口と低圧段吸入通路の入口との関係、後置冷
却器ACの小空間１８の出口と排出口との位置関
係によつては不要の場合もある。 The casing consists of a main casing 1, a suction side end face casing 2, and a discharge side end face casing 3, which are connected to each other by bolts and are integrated. In the main casing 1, an inner wall 5 is disposed inside an outer wall 4 at a certain distance from the outer wall 4. A plurality of ribs 6, 6a to 6g that divide the space between the ribs 6 and 5 into a plurality of small spaces.
is provided. Two working spaces consisting of two intersecting cylindrical holes are installed inside the inner wall 5, and one working space 7 is for the low pressure stage, and is provided with a wall 8, a part of which also serves as the inner wall 5. The other working space 9 is for a high pressure stage and is formed by a wall 10, a part of which also serves as the inner wall 5. A low-pressure stage discharge passage 12 is connected to the low-pressure stage working space 7 through a discharge port 11, and a high-pressure stage discharge passage 14 is connected to the high-pressure stage working space 9 through a discharge port 13.
Both of these discharge passages 12 and 14 are installed inside the inner wall 5. Among the plurality of small spaces between the outer wall 4 and the inner wall 5, the small spaces 15, 16, 17, 18
Heat transfer tube groups 15t, 16t, 17t, and 18t are arranged, and small spaces 15 and 16 are intercoolers that cool compressed gas flowing between the low pressure stage and the high pressure stage.
Spaces 17 and 18 are used as IC, and spaces 17 and 18 are used as post-cooler AC to cool the compressed gas discharged from the high pressure stage.
used as. Space 19 is an intercooler IC
The compressed gas discharged from the space 16 is transferred to the high pressure stage working space 9.
It is used as a return passage to lead to the suction passage. Also, the space 20 is a small space 18 of the post-cooler AC.
It is used as a passageway to guide compressed gas from the outlet to the exhaust port. These two passages 19 and 20 are not necessarily necessary passages, but are located in the small space 16 of the intercooler IC.
It may not be necessary depending on the relationship between the outlet of the AC and the inlet of the low-pressure stage suction passage, and the positional relationship between the outlet of the small space 18 of the post-cooler AC and the discharge port.
ゲージ挿入用穴２１は、外壁４および内壁５を
貫通して低圧段用作動空間７に達するように設け
られている。高圧段用作動空間９に対しても同様
にゲージ挿入用穴２２が設置されている。これら
のゲージ挿入用穴２１，２２は、おすロータ２
５、めすロータ２６の各歯および作動空間の壁と
によつて形成される作動室７Ｗ，７W1，７W2…
………，９Ｗ，９W1，９W2…………の中で吸入
口４３，４４に連通している領域内に配置され
る。この詳細を第６図により説明する。第６図
は、低圧段用作動空間７の内壁面およびねじロー
タ２５，２６の外周面を展開した図である。 The gauge insertion hole 21 is provided so as to penetrate the outer wall 4 and the inner wall 5 and reach the low pressure stage working space 7. A gauge insertion hole 22 is similarly installed in the high-pressure stage working space 9. These gauge insertion holes 21 and 22 are for the male rotor 2.
5. Working chambers 7W, 7W 1 , 7W 2 formed by each tooth of the female rotor 26 and the wall of the working space...
. . . , 9W, 9W 1 , 9W 2 . The details will be explained with reference to FIG. FIG. 6 is a developed view of the inner wall surface of the low-pressure stage working space 7 and the outer peripheral surfaces of the screw rotors 25 and 26.
前記作動室７Ｗ中の７W1，９W1〜７W4，９
W4までが吸入口４３，４４と連通しており、こ
の領域が吸入領域となる。この領域に前記のゲー
ジ挿入用穴２１，２２が設けられている。 7W 1 , 9W 1 to 7W 4 , 9 in the working chamber 7W
The area up to W 4 communicates with the suction ports 43 and 44, and this area becomes the suction area. The aforementioned gauge insertion holes 21 and 22 are provided in this area.
これら両ゲージ挿入用穴２１，２２は、後述す
るタイミングギヤをおすロータ軸とめすロータ軸
に締結する場合、予めおすロータとめすロータ間
の間隙をロータ歯形の前進面、後進面とも同じに
する作業を行う際に使用するゲージ挿入用穴であ
り、この作業穴から隙間ゲージを両ロータ間のロ
ータ歯形の前進面、後進面にさし込む。両ゲージ
挿入用穴２１，２２は通常不要なので、盲フラン
ジ２３，２４により塞がれている。前記低圧段用
作動空間７には、互に噛合うおすロータ２５ｌめ
すロータ２６ｌとが納められている。両ロータ２
５ｌ，２６ｌの軸の部分には、軸受２７ｌ，２８
ｌが配置され、ロータの吐出側は軸受２７ｌを介
してメインケーシング１に、吸入側は軸受２８ｌ
を介して吸込側端面ケーシング２に支持されてい
る。おすロータ２５ｌ、めすロータ２６ｌの軸の
部分には、対のタイミングギヤ２９ｌ，３０ｌが
嵌め込まれ、前記のようにロータ間隙間を前進
面、後進面とも均一にした後に結合される。ロー
タ、軸受、タイミングギヤについては高圧段も同
じであるから、番号の後にｈをつけて表示し説明
は省略する。またおすロータ２５ｌの軸の部分に
はロータ駆動力を伝達する駆動用歯車３１ｌが嵌
め込まれている。図示していないが高圧段につい
ても同様に駆動用歯車がある。吸込側端面ケーシ
ング２には、低圧段吸込通路３２ｌ、中間冷却器
ICの管群１５ｔおよび管群１６ｔの内部を互に
連通する連絡通路３３、高圧段吸込通路３２ｈ、
後置冷却器ACの管群１７ｔと管群１８ｔの内部
を互に連通する連絡通路３４が設けられており、
これらの各通路は、外壁３５、隔壁３６によつて
仕切られている。吐出側端面ケーシング３には、
低圧段吐出通路１２と中間冷却器ICの管群１５
ｔの内部とを連通する連絡通路３２、中間冷却器
ICの管群１６ｔの内部と戻り通路１９とを連通
する連絡通路３８、高圧段吐出通路１４と後置冷
却器ACの伝熱管群１７ｔの内部とを連通する連
絡通路３９、後置冷却器ACの伝熱管群１８ｔの
内部と戻り通路２０とを連通する連絡通路４０が
設けられ、これらの各通路は外壁４１と隔壁４２
によつて仕切られている。 When connecting a timing gear to a male rotor shaft and a female rotor shaft, which will be described later, to these two gauge insertion holes 21 and 22, the gap between the male rotor and the female rotor should be made the same in advance on both the forward and reverse surfaces of the rotor tooth profile. This is a gauge insertion hole used during work, through which a feeler gauge is inserted into the forward and backward surfaces of the rotor tooth profile between both rotors. Since both gauge insertion holes 21 and 22 are normally unnecessary, they are closed by blind flanges 23 and 24. The low pressure stage working space 7 houses a male rotor 25l and a female rotor 26l that mesh with each other. both rotors 2
Bearings 27l and 28 are installed on the shafts of 5l and 26l.
l is arranged, the discharge side of the rotor is connected to the main casing 1 via a bearing 27l, and the suction side is connected to the main casing 1 via a bearing 28l.
It is supported by the suction side end face casing 2 via. A pair of timing gears 29l and 30l are fitted into the shaft portions of the male rotor 25l and the female rotor 26l, and the rotors are combined after making the gap between the rotors uniform on both the forward and reverse surfaces as described above. Since the rotor, bearing, and timing gear are the same for the high pressure stage, they will be indicated by adding an h after the number and will not be described further. Further, a driving gear 31l for transmitting rotor driving force is fitted into the shaft portion of the male rotor 25l. Although not shown, there is a drive gear for the high pressure stage as well. The suction side end casing 2 includes a low pressure stage suction passage 32l and an intercooler.
A communication passage 33 that communicates the insides of the IC tube group 15t and the tube group 16t, a high pressure stage suction passage 32h,
A communication passage 34 is provided that communicates the inside of the tube group 17t and the tube group 18t of the post-cooler AC,
Each of these passages is partitioned by an outer wall 35 and a partition wall 36. The discharge side end face casing 3 includes
Low pressure stage discharge passage 12 and intercooler IC tube group 15
A communication passage 32 communicating with the inside of t, an intercooler
A communication passage 38 that communicates the inside of the IC tube group 16t and the return passage 19, a communication passage 39 that communicates the high pressure stage discharge passage 14 and the inside of the heat exchanger tube group 17t of the post-cooler AC, and a communication passage 39 that communicates the inside of the IC tube group 16t with the return passage 19, a communication passage 39 that communicates the inside of the heat exchanger tube group 17t of the post-cooler AC, and a post-cooler AC. A communication passage 40 is provided that communicates the inside of the heat exchanger tube group 18t with the return passage 20, and each of these passages has an outer wall 41 and a partition wall 42.
It is divided by.
第７図は、本発明の第２実施例を示すもので作
動空間が１個の場合の実施例である。この実施例
においても、ゲージ挿入用穴２１の位置、構成
は、第１実施例と同じであるから、同一符号を付
しそれらの説明を省略する。 FIG. 7 shows a second embodiment of the present invention, which is an embodiment in which there is only one working space. In this embodiment as well, the position and configuration of the gauge insertion hole 21 are the same as in the first embodiment, so the same reference numerals are given and explanation thereof will be omitted.
尚、同図において符号４５は排出通路である。 In addition, in the same figure, the reference numeral 45 is a discharge passage.
以上述べたように本発明は、メインケーシング
のロータに面している面積が吐出口よりも大きい
吸入領域に隙間ゲージ挿入用穴を有するので、大
きな面積の穴を設置することが可能で、ゲージ類
を挿入するに充分な面積をもつた穴を設置するこ
とができる。
As described above, the present invention has a hole for inserting a feeler gauge in the suction area of the main casing, which has a larger area facing the rotor than the discharge port, so it is possible to install a hole with a large area, and A hole with a sufficient area for inserting the type can be installed.
従つて、ケーシング内に両ロータを組付けた状
態で、両ロータ間に隙間ゲージ類を容易に挿入す
ることができ、適正なタイミングギヤの位置調整
ができる。 Therefore, with both rotors assembled in the casing, a gap gauge can be easily inserted between both rotors, and the position of the timing gear can be adjusted appropriately.
また、ゲージ類挿入用穴はタイミング調整時の
ほかは着脱可能な盲部材で塞がれているので、運
転時悪影響は起こらない。 In addition, since the gauge insertion hole is covered with a removable blind member except when adjusting the timing, no adverse effects occur during operation.
第１図〜第７図は本発明の説明用図であつて、
第１図は第１実施例のメインケーシングの縦断面
図、第２図は第１図の−線断面図、第３図は
第１図の−線断面図、第４図は第１図の−
線断面図、第５図は第１図の−線断面図、
第６図はねじロータ外周面と作動空間の内壁面の
展開図、第７図は本発明の第２実施例の断面図
で、第１図の−線断面に相当する断面図であ
る。
１……メインケーシング、２……吸込側端面ケ
ーシング、３……吐出側端面ケーシング、４……
外壁、５……内壁、６……リブ、７，９……作動
空間、１２，１４……吐出通路、１５，１６……
中間冷却器の空間、１７，１８……後置冷却器の
空間、１９，２０……戻り通路、２５ｌ，２５ｈ
……おすロータ、２６ｌ，２６ｈ……めすロー
タ、２７ｌ，２７ｈ，２８ｌ，２８ｈ……軸受、
２９ｌ，２９ｈ，３０ｌ，３０ｈ……タイミング
ギヤ、３１ｌ，３１ｈ……駆動歯車、３２ｌ，３
２ｈ……吸込通路、３８，３９，４０……連絡通
路、４３，４４……吸入口、４５……排出通路。
FIGS. 1 to 7 are explanatory diagrams of the present invention, and
Fig. 1 is a longitudinal sectional view of the main casing of the first embodiment, Fig. 2 is a sectional view taken along the - line in Fig. 1, Fig. 3 is a sectional view taken along the - line in Fig. 1, and Fig. 4 is a sectional view taken along the - line in Fig. 1. −
A line sectional view, FIG. 5 is a - line sectional view of FIG. 1,
FIG. 6 is a developed view of the outer peripheral surface of the screw rotor and the inner wall surface of the working space, and FIG. 7 is a cross-sectional view of a second embodiment of the present invention, which corresponds to the cross-sectional view taken along the line - in FIG. 1. 1... Main casing, 2... Suction side end face casing, 3... Discharge side end face casing, 4...
Outer wall, 5... Inner wall, 6... Rib, 7, 9... Working space, 12, 14... Discharge passage, 15, 16...
Intercooler space, 17, 18... Post-cooler space, 19, 20... Return passage, 25l, 25h
...Male rotor, 26l, 26h...Female rotor, 27l, 27h, 28l, 28h...Bearing,
29l, 29h, 30l, 30h...timing gear, 31l, 31h...drive gear, 32l, 3
2h... Suction passage, 38, 39, 40... Communication passage, 43, 44... Suction port, 45... Discharge passage.
Claims (1)
メインケーシングの端面に結合された端面ケーシ
ングと、前記作動空間に回転可能に納められた対
のロータとを備え、ガスが吸入口を経由して作動
空間に入り、作動空間から吐出口を経由して吐出
されるように構成されたものにおいて、前記メイ
ンケーシングの吸入領域に、メインケーシングの
壁を貫通して、外側から作動空間まで達するゲー
ジ挿入用穴を有し、このゲージ挿入用穴を塞いで
いる着脱可能な盲部材を有することを特徴とする
スクリユー流体機械。1 Comprising a main casing having a working space, an end casing coupled to an end face of the main casing, and a pair of rotors rotatably housed in the working space, gas enters the working space via an inlet. A gauge insertion hole is provided in the suction area of the main casing, penetrating the wall of the main casing and reaching the working space from the outside. 1. A screw fluid machine, comprising: a removable blind member that closes the gauge insertion hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16028484A JPS6069281A (en) | 1984-08-01 | 1984-08-01 | Screw hydraulic machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16028484A JPS6069281A (en) | 1984-08-01 | 1984-08-01 | Screw hydraulic machine |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51127205A Division JPS5848757B2 (en) | 1976-07-28 | 1976-10-25 | screw fluid machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6069281A JPS6069281A (en) | 1985-04-19 |
| JPS622157B2 true JPS622157B2 (en) | 1987-01-17 |
Family
ID=15711657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16028484A Granted JPS6069281A (en) | 1984-08-01 | 1984-08-01 | Screw hydraulic machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6069281A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3499040B1 (en) * | 2017-12-15 | 2020-03-25 | Pfeiffer Vacuum Gmbh | Screw vacuum pump |
-
1984
- 1984-08-01 JP JP16028484A patent/JPS6069281A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6069281A (en) | 1985-04-19 |
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