JP3104783B2 - Screw pump trough finishing method - Google Patents
Screw pump trough finishing methodInfo
- Publication number
- JP3104783B2 JP3104783B2 JP07345709A JP34570995A JP3104783B2 JP 3104783 B2 JP3104783 B2 JP 3104783B2 JP 07345709 A JP07345709 A JP 07345709A JP 34570995 A JP34570995 A JP 34570995A JP 3104783 B2 JP3104783 B2 JP 3104783B2
- Authority
- JP
- Japan
- Prior art keywords
- trough
- scraping
- screw pump
- finishing
- blades
- 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 - Fee Related
Links
Landscapes
- Cleaning In General (AREA)
- Screw Conveyors (AREA)
- Electromagnetic Pumps, Or The Like (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、スクリューポン
プのトラフの仕上方法の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a method for finishing a trough of a screw pump.
【０００２】[0002]
【従来の技術】従来のスクリューポンプのトラフの仕上
方法としては、スクリューポンプの複数条の羽根のうち
のその一条の羽根の外周縁部に仕上用の掻取片をその全
長に渡って装着して羽根を回転させ、トラフ内面を仕上
げるもの（図３）、また、スクリュー羽根の外縁に掻取
片を橋架させて、羽根を回転させるもの（図４）等が知
られている。2. Description of the Related Art As a conventional method of finishing a trough of a screw pump, a scraping piece for finishing is attached to the outer peripheral edge of one of the plurality of blades of the screw pump over its entire length. There are known ones in which the blades are rotated to finish the inner surface of the trough (FIG. 3), and those in which a scraping piece is bridged to the outer edge of the screw blades to rotate the blades (FIG. 4).
【０００３】[0003]
【発明が解決しようとする課題】然しながら、上述の複
数条の螺旋羽根の一枚の羽根の外周縁部に全長に渡って
掻取片を装着するものは、仕上作業するに当ってその一
枚の羽根のみに力がかかって、その羽根に応力が集中
し、特に、仕上材が蓄積する上部で応力が大きくなり、
歪等が発生する難点がある。However, in the case where a scraping piece is attached to the outer peripheral edge of one of the plurality of spiral blades described above over the entire length, one of the spiral blades is used for finishing work. The force is applied only to the wings, and the stress concentrates on the wings.
There is a problem that distortion or the like occurs.
【０００４】また、螺旋羽根間にブリッジ状に掻取片を
装着するものは、バランス上、周方向に数本の掻取片を
つけなければならず、着脱に手数を要する。On the other hand, when the scraping pieces are mounted in a bridge shape between the spiral blades, several scraping pieces must be attached in the circumferential direction for the sake of balance.
【０００５】[0005]
【課題を解決するための手段】この発明は、上述のよう
な課題を解決し得るものであって、複数条のスクリュー
羽根を備えたスクリューポンプにおいて、第１条目の螺
旋羽根の外周縁に仕上材掻取用の掻取材をその長さ方向
に一定の長さだけ取付け、次いで、この掻取材の終端に
おける螺旋羽根の外周同位相において接続されるように
第２条目の螺旋羽根の外周縁に掻取材を付け、このよう
な付け方で複数条の螺旋羽根に掻取材をつけたスクリュ
ーポンプを仕上材が供給されたトラフ内で回転させるよ
うにしたものである。SUMMARY OF THE INVENTION The present invention can solve the above-mentioned problems, and in a screw pump having a plurality of screw blades, a finish is provided on the outer peripheral edge of the first spiral blade. A scraping material for scraping the material is attached by a fixed length in the longitudinal direction, and then attached to the outer peripheral edge of the second spiral blade so as to be connected at the same phase of the outer periphery of the spiral blade at the end of the scraping material. A scraping material is attached, and a screw pump in which the scraping material is attached to a plurality of spiral blades in this manner is rotated in a trough to which a finishing material is supplied.
【０００６】すなわち、この発明の要旨とするところ
は、外周部にその長手方向に沿って掻取材を設けた螺旋
羽根をトラフ内に設置し、この螺旋羽根を回転させてト
ラフの内面を仕上げるようにしたスクリューポンプのト
ラフ内面の仕上方法において、上記螺旋羽根の外周部に
設ける掻取材を分割してそのそれぞれを上記複数条の螺
旋羽根の外周縁部に取付け、これら取付けた掻取材の終
端が螺旋羽根の基端から軸方向に等距離の位相において
次条の螺旋羽根の掻取材の始端に接続されるように配設
し、このように掻取材を配設した螺旋羽根を仕上材を供
給したトラフ内で回転させるようにしたものである。That is, the gist of the present invention is to install a spiral blade provided with a scraping material on an outer peripheral portion thereof along a longitudinal direction in a trough and rotate the spiral blade to finish an inner surface of the trough. In the method for finishing the inner surface of the trough of the screw pump, the scraping material provided on the outer peripheral portion of the spiral blade is divided, and each is attached to the outer peripheral edge of the plurality of spiral blades. It is disposed so as to be connected to the starting end of the scraping material of the next spiral blade at a phase equidistant in the axial direction from the base end of the spiral blade, and the finishing material is supplied to the spiral blade provided with the scraping material in this way. It is designed to be rotated in a trough.
【０００７】[0007]
【発明の実施の形態】このようにした掻取材を配設した
螺旋羽根は、これを仕上材中で回転させた場合、各条の
螺旋羽根が、負荷を分担して仕上材を掻取ることとな
り、従来の一条のみの螺旋羽根に負荷がかかるものに比
較して集中応力が生ずることがない。然も、各条に設け
た掻取材は、互に継ぎ足されて螺旋羽根を周回すること
となっているので、常時トラフ内面に均一に接する。ま
た、掻取材が継ぎ足されて一条の形態で配設されている
もので、前述の螺旋羽根間に掻取材を橋架するものに比
較して構造簡単で、容易に着脱でき、仕上操作前後の作
業も簡単である。以下図面に基づいて、この発明の具体
例を説明する。BEST MODE FOR CARRYING OUT THE INVENTION A spiral blade provided with such a scraping material, when rotated in a finishing material, causes the spiral blades of each strip to share the load and scrape the finishing material. Therefore, concentrated stress is not generated as compared with the conventional case where a load is applied to only one spiral blade. Needless to say, the scraping material provided on each strip is added to each other and goes around the spiral blade, so that the scraping material always comes into uniform contact with the inner surface of the trough. In addition, the scraping material is added and arranged in a single-row form, and has a simpler structure than the above-mentioned bridge material in which the scraping material is bridged between the spiral blades, and can be easily attached and detached. Is also easy. Hereinafter, specific examples of the present invention will be described with reference to the drawings.
【０００８】[0008]
【実施例】図１は、スクリューポンプの据付状態を概念
的に示す断面図であり、図中、符号１はスクリューポン
プ、２はトラフであり、上面が開放した半円形をしてい
る。３は、ポンプ軸４に巻回した螺旋状の羽根で、図１
では、３条の羽根３がポンプ軸４に巻回してある。符号
５は、羽根３の外周縁に装着した掻取材を示している
が、この掻取材５はトラフの仕上完了後は取りはずすも
のである。FIG. 1 is a sectional view conceptually showing an installed state of a screw pump. In the figure, reference numeral 1 denotes a screw pump, 2 denotes a trough, and has a semicircular shape with an open upper surface. Reference numeral 3 denotes a spiral blade wound around a pump shaft 4, and FIG.
In the figure, three blades 3 are wound around a pump shaft 4. Reference numeral 5 indicates a scraping material mounted on the outer peripheral edge of the blade 3, and the scraping material 5 is to be removed after finishing the trough.
【０００９】次に、この発明に係る仕上法に用いる掻取
材５の配設状況を図２に基づいて具体的に説明する。図
２に示すスクリューポンプ１では、ポンプ軸４に３条の
螺旋状の羽根３ａ、３ｂ、３ｃを巻回し、そのそれぞれ
の外周縁に掻取材５ａ、５ｂ、５ｃが装着してある。そ
して、掻取材５ａは、図示すよるように第１条目の羽根
３ａに始端イから終端ロまでの間に装着されており、掻
取材５ｂは、同じく、第２条目の羽根３ｂに始端ハから
終端ニまでの間に装着されており、掻取材５ｃは、同じ
く、第３条目の羽根３ｃに始端ホから終端ヘまでの間に
装着されている。Next, the arrangement of the scraping material 5 used in the finishing method according to the present invention will be specifically described with reference to FIG. In the screw pump 1 shown in FIG. 2, three spiral blades 3a, 3b, and 3c are wound around a pump shaft 4, and scraping materials 5a, 5b, and 5c are attached to the respective outer peripheral edges. The scraping material 5a is attached to the first blade 3a from the start end A to the end B, as shown in the figure. The scraping material 5c is attached to the third end blade 3c from the start end E to the end end similarly.
【００１０】すなわち、掻取材５は分割されてその分割
された掻取材５ａ、５ｂ、５ｃがそれぞれ３条の羽根３
ａ、３ｂ、３ｃ、の外周縁に装着され、これらが、羽根
３ａ、３ｂ、３ｃ、の外周縁で接続されてトラフ２の内
面に近接するように設けられているものである。That is, the scraping material 5 is divided, and the divided scraping materials 5a, 5b, 5c are respectively divided into three blades 3
a, 3b, 3c, which are attached to the outer peripheral edges of the blades 3a, 3b, 3c, and are provided so as to be close to the inner surface of the trough 2.
【００１１】このように構成した羽根３をトラフ２内に
支架し、トラフ２内に仕上材を供給してこれを回転させ
ると、各羽根３ａ、３ｂ、３ｃに装着した掻取材は、仕
上材を掻取って搬送し、トラフ内面を仕上げることがで
きる。このトラフ内面を仕上げるに当って、仕上材の掻
取搬送力は、各羽根３ａ、３ｂ、３ｃが分担するので、
従来の１条の羽根のみに連続した掻取材を装着したもの
に比較して応力集中を防止でき、作業時に羽根の歪等が
なく、羽根の外周縁とトラフ内面に適切なクリアランス
を確保することができる。When the blade 3 constructed as described above is supported in the trough 2 and a finishing material is supplied into the trough 2 and rotated, the scraping material mounted on each of the blades 3a, 3b and 3c becomes a finishing material. Can be scraped and conveyed to finish the inner surface of the trough. In finishing the inner surface of the trough, the blades 3a, 3b, 3c share the scraping and conveying force of the finishing material.
It is possible to prevent stress concentration compared to the conventional one with only one blade attached with a continuous scraping material, there is no distortion of the blade at the time of work, and to secure appropriate clearance between the outer peripheral edge of the blade and the inner surface of the trough Can be.
【００１２】また、前述のように羽根３ａ、３ｂ、３ｃ
に装着した掻取材は、トラフ２の内面を仕上げたのち
に、取りはずすのであるが、この掻取材を着脱するに当
っても、従来の長い掻取材を着脱するのに比較してその
操作が容易であり、特に、数本の掻取材を羽根間に橋架
するものに比較すれば、その着脱操作がはるかに簡単で
ある。Further, as described above, the blades 3a, 3b, 3c
The scraping material attached to the trough 2 is removed after finishing the inner surface of the trough 2, but the operation of removing and attaching this scraping material is easier than attaching and detaching a conventional long scraping material. In particular, the attachment and detachment operation is much easier as compared with the case where several scraping materials are bridged between the blades.
【００１３】[0013]
【発明の効果】このように、スクリューポンプのトラフ
を仕上げるに当って、この発明に係る方法によれば、螺
旋状の羽根にかかる力を分散して応力の集中を防止する
と同時に羽根に歪等の発生がないので、所望のクリアラ
ンスを保ってトラフを仕上げることができ、さらに、掻
取材の着脱も簡単である等、スクリューポンプのトラフ
を仕上げるに当って得られる利益は著大なものである。As described above, in finishing the trough of the screw pump, according to the method of the present invention, the force applied to the spiral blade is dispersed to prevent stress concentration, and at the same time, the blade is distorted. Since there is no occurrence, it is possible to finish the trough while maintaining the desired clearance, and furthermore, it is easy to attach and detach the scraping material, and the benefits obtained in finishing the trough of the screw pump are remarkable. .
【図１】スクリューポンプの据付状態を示す断面図であ
る。FIG. 1 is a sectional view showing an installed state of a screw pump.
【図２】この発明に係る方法に用いるスクリューポンプ
の平面図である。FIG. 2 is a plan view of a screw pump used in the method according to the present invention.
【図３】従来のトラフの仕上げに用いるスクリューポン
プの羽根部分の斜面図である。FIG. 3 is a perspective view of a blade portion of a screw pump used for finishing a conventional trough.
【図４】同じく、他例の斜面図である。FIG. 4 is a perspective view of another example.
１ スクリューポンプ ２ トラフ ３ 螺旋羽根 ５ 掻取材 Reference Signs List 1 screw pump 2 trough 3 spiral blade 5 scraping material
Claims (1)
を設けた螺旋羽根３をトラフ２内に設置し、この螺旋羽
根３を回転させてトラフ２の内面を仕上げるようにした
スクリューポンプ１のトラフ内面の仕上方法において、
上記螺旋羽根３の外周部に設ける掻取材５を分割してそ
のそれぞれを上記複数条の螺旋羽根３の外周縁部に取付
け、これら取付けた掻取材５の終端が螺旋羽根３の基端
から軸方向に等距離の位相において次条の螺旋羽根３の
掻取材５の始端に接続されるように配設し、このように
掻取材５を配設した螺旋羽根３を仕上材を供給したトラ
フ２内で回転させることを特長とするスクリューポンプ
のトラフの仕上方法。1. A scraping material 5 is provided on an outer peripheral portion along a longitudinal direction thereof.
In the method for finishing the inner surface of the trough of the screw pump 1 in which the spiral blade 3 provided with is provided in the trough 2 and the inner surface of the trough 2 is finished by rotating the spiral blade 3,
The scraping material 5 provided on the outer peripheral portion of the spiral blade 3 is divided and attached to the outer peripheral edges of the plurality of spiral blades 3, respectively. The spiral blade 3 provided with the scraping material 5 is disposed so as to be connected to the starting end of the scraping material 5 of the next spiral blade 3 at a phase equidistant in the direction. A method for finishing a trough of a screw pump, characterized in that the trough is rotated in the inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07345709A JP3104783B2 (en) | 1995-12-07 | 1995-12-07 | Screw pump trough finishing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07345709A JP3104783B2 (en) | 1995-12-07 | 1995-12-07 | Screw pump trough finishing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09156744A JPH09156744A (en) | 1997-06-17 |
| JP3104783B2 true JP3104783B2 (en) | 2000-10-30 |
Family
ID=18378437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07345709A Expired - Fee Related JP3104783B2 (en) | 1995-12-07 | 1995-12-07 | Screw pump trough finishing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3104783B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100503118C (en) | 2003-10-10 | 2009-06-24 | 千住金属工业株式会社 | Jet solder vessel |
-
1995
- 1995-12-07 JP JP07345709A patent/JP3104783B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09156744A (en) | 1997-06-17 |
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