JPH0178278U - - Google Patents
Info
- Publication number
- JPH0178278U JPH0178278U JP1987173667U JP17366787U JPH0178278U JP H0178278 U JPH0178278 U JP H0178278U JP 1987173667 U JP1987173667 U JP 1987173667U JP 17366787 U JP17366787 U JP 17366787U JP H0178278 U JPH0178278 U JP H0178278U
- Authority
- JP
- Japan
- Prior art keywords
- ring
- drive shaft
- coil spring
- mechanical seal
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Landscapes
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Description
第1図は縦断側面図、第2図はケーシング本体
とケーシングカバーとの境界部での縦断正面図、
第3図は輸送液体漏洩防止用メカニカルシール部
分を詳細に示す拡大縦断側面図、第4図は前記メ
カニカルシールの固定リングと回転リングとを示
す斜視図、第5図は前記メカニカルシール用コイ
ルスプリングの一端の斜視図、第6図は同スプリ
ングの正面図、第7図は同スプリングの要部の拡
大断面図である。
1A,1B……ローター駆動軸、2……スプラ
イン軸部、3A,3B……ローター、5……ロー
ター固定用ナツト、6……ケーシング、7……ポ
ンプ歯部、8……ポンプ室、11……ケーシング
本体、12……ケーシングカバー、13……輸送
液体の漏洩防止用メカニカルシール、14……滅
菌用スチームの漏洩防止用メカニカルシール、1
5……固定リング、17……回転リング、18…
…コイルスプリング、18b……尖鋭状稜線、1
9,20……Oリング、27,33……廻り止め
ピン、29,32……環状溝、31……シールリ
ング、35……貫通流路、36……環状凹入溝、
39……メカニカルシール内装空洞部、40……
連通路、41……吸入口、42……吐出口。
Figure 1 is a vertical side view, Figure 2 is a vertical front view at the boundary between the casing body and the casing cover,
FIG. 3 is an enlarged vertical sectional side view showing in detail the mechanical seal for preventing leakage of transported liquid, FIG. 4 is a perspective view showing the fixed ring and rotating ring of the mechanical seal, and FIG. 5 is the coil spring for the mechanical seal. FIG. 6 is a front view of the spring, and FIG. 7 is an enlarged sectional view of the main parts of the spring. 1A, 1B... Rotor drive shaft, 2... Spline shaft portion, 3A, 3B... Rotor, 5... Rotor fixing nut, 6... Casing, 7... Pump teeth, 8... Pump chamber, 11 ... Casing body, 12 ... Casing cover, 13 ... Mechanical seal for preventing leakage of transport liquid, 14 ... Mechanical seal for preventing leakage of sterilization steam, 1
5... Fixed ring, 17... Rotating ring, 18...
...Coil spring, 18b...Sharp ridgeline, 1
9, 20... O-ring, 27, 33... Rotating pin, 29, 32... Annular groove, 31... Seal ring, 35... Through flow path, 36... Annular recessed groove,
39... Mechanical seal interior cavity, 40...
Communication path, 41... Suction port, 42... Discharge port.
Claims (1)
ーシング側の固定リング、ローター駆動軸と一体
に回転する回転リング、及び前記両リングの一方
を他方のリング側へ軸方向に押圧付勢するコイル
スプリングから成るメカニカルシールを介装した
ロータリーポンプに於いて、前記コイルスプリン
グの両端部でスプリング端部受け面に当接する部
分を、前記スプリング端部受け面に対して線接触
する尖鋭状稜線を形成する山形断面形状として成
るロータリーポンプ。 Between the rotor drive shaft and the casing, a fixed ring on the casing side, a rotating ring that rotates together with the rotor drive shaft, and a coil spring that presses one of the rings toward the other ring in the axial direction. In a rotary pump equipped with a mechanical seal, the portions of the coil spring that contact the spring end receiving surface at both ends thereof have a chevron shape forming a sharp ridge line that makes line contact with the spring end receiving surface. A rotary pump with a cross-sectional shape.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987173667U JPH0617023Y2 (en) | 1987-11-12 | 1987-11-12 | Rotary pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987173667U JPH0617023Y2 (en) | 1987-11-12 | 1987-11-12 | Rotary pump |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0178278U true JPH0178278U (en) | 1989-05-25 |
JPH0617023Y2 JPH0617023Y2 (en) | 1994-05-02 |
Family
ID=31465563
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987173667U Expired - Lifetime JPH0617023Y2 (en) | 1987-11-12 | 1987-11-12 | Rotary pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0617023Y2 (en) |
-
1987
- 1987-11-12 JP JP1987173667U patent/JPH0617023Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0617023Y2 (en) | 1994-05-02 |