CN2232094Y - Two stage liquid ring type vacuum pump - Google Patents
Two stage liquid ring type vacuum pump Download PDFInfo
- Publication number
- CN2232094Y CN2232094Y CN 95234908 CN95234908U CN2232094Y CN 2232094 Y CN2232094 Y CN 2232094Y CN 95234908 CN95234908 CN 95234908 CN 95234908 U CN95234908 U CN 95234908U CN 2232094 Y CN2232094 Y CN 2232094Y
- Authority
- CN
- China
- Prior art keywords
- pump
- pump housing
- short
- long
- face
- 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
Abstract
The utility model mainly relates to a two-stage liquid ring type vacuum pump which is mainly composed of a rear bearing pressing cover, a shaft, a bearing frame, a front and a rear end covers, tightening bolts used for connecting pump bodies and circular disks of the front and the rear covers, a communicating pipe communicated with two pump cavities, a short impeller which is eccentrically installed in the pump bodies, a long impeller, shaft sleeves between the long and the short impellers, etc., wherein, an end face with air sucking hole on the short pump body is contacted with an end face with air discharge holes on the long pump body. The utility model has the characteristics of compact structure, small accumulated error, stable performance, reliable use, convenient assembly and disassembly, high pumping speed in high vacuum zones, etc. and the component parts of the utility model are not easy to deform.
Description
The utility model belongs to vacuum pump, relates generally to the two-stage liquid-ring vacuum pump.
The two-stage liquid-ring vacuum pump of prior art two intermediates are arranged, thereby in assembly process, accumulated error is big between two pump housings, be not easy to guarantee the gap of pump housing end face and impeller.In addition, existing two-stage liquid-ring vacuum pump exists also that intensity is low, yielding, processing technology is complicated, cost is high, the defective that the life-span is low.
The purpose of this utility model provides and is easy to assembling, and impeller end face and pump housing end clearance easily guarantee, the two-stage liquid-ring vacuum pump that processing technology is simple, cost is low, intensity is high, the life-span is long.
The utility model is mainly by axle, forward and backward bearing gland, bearing bracket stand, front and rear cover, the turnbuckle that connects the pump housing and front and rear covers disk, with the connecting tube that two pump housings are communicated with, be positioned at the pump housing and the eccentric short impeller of installing, the wheel that comes into leaves, bonnet disk and lack pump housing end face and contact, the protecgulum disk contacts with long pump housing end face, the water inlet communicates with the pump chamber of the long pump housing, and the short pump housing contacts with the both ends of the surface of the long pump housing.
In addition, front and rear cover, bonnet disk, the short pump housing, the long pump housing, protecgulum disk are combined as a whole by turnbuckle.Short impeller with come into leaves between wheel spool on axle sleeve is installed.
The utility model is described in further detail below in conjunction with accompanying drawing:
Accompanying drawing is a structural representation of the present utility model, also is its most preferred embodiment:
Among the figure, 1 rear bearing gland, 2,3 bearing bracket stands, 4 front and rear covers, the 5 short pump housings, 6 turnbuckles, the 7 long pump housings, 8 connecting tube, 9 lubricating cups, 10 fore bearing glands, 11 Glands, 12 bonnet disks, 13 lack impellers, 14 axle sleeves, 15 come into leaves wheel, 16 protecgulum disks, 17 water inlets, 18 pump coupling, 19 motor couplers, 20 bearing glands.
The utility model is made up of the two-stage pump housing, and the wheel 15 that comes into leaves is positioned at the long pump housing 7, and short impeller 13 is arranged in the short pump housing 5, long and short two impellers are fixed on the axle 2 with flat key, locate with axle sleeve 14 in the middle of two impellers, and lock with floor clip and round nut, this has just constituted the part of transferring to of vacuum pump.Two impellers off-centre respectively are installed in the pump housing.Bonnet disk 12 is installed the end face of the short pump housings 5, and protecgulum disk 16 is installed in the end face of the long pump housing 7, like this front and rear covers disk two pump chambers of composition respectively and between the length pump housing.At the front end of axle 2 pump coupling 18 being installed links with motor coupler 19.Thereby, motor drives the length wheel rotation when rotating.The wheel 15 and the long pump housing 7 and the suction part of coming into leaves formed the high vacuum level, the short impeller 13 and the short pump housing 5 and discharge section are formed the rough vacuum level, the suction port of the exhaust port of high vacuum level and rough vacuum level connecting tube 8 UNICOM, on the short pump housing 5 suction port is arranged between the two-stage, on the long pump housing 77 exhaust port is arranged, form double stage tandem, become the two-stage vacuum pump.
The utility model has compared with prior art reduced number of spare parts, has reduced and has been processed into This has improved packaging efficiency, has reduced the accumulated error of assembling, and greatly having improved work can Lean on the service life of property and vavuum pump. In addition, adjust impeller and pump body end surface gap, as long as Adjust bearing gland 20 and fore bearing gland 10 and get final product, greatly facilitate adjustment.
Claims (3)
1, a kind of two-stage liquid-ring vacuum pump, comprise rear bearing gland (1), axle (2), bearing bracket stand (3), front and rear cover (4), connect the short pump housing (5) and the long pump housing (7) and bonnet disk (12), the turnbuckle (6) of protecgulum disk (16), the connecting tube (8) that is communicated with two pump housings, be positioned at the pump housing and the eccentric short impeller of installing (13), wheel (15) comes into leaves, bonnet disk (12) contacts with the short pump housing (5) end face, protecgulum disk (16) contacts with the long pump housing (7) end face, water inlet (17) communicates with the pump chamber of the long pump housing (7), and the end face that has exhaust port on the end face that it is characterized in that having on the short pump housing (5) suction port and the long pump housing (7) contacts.
2, two-stage liquid-ring vacuum pump according to claim 1 is characterized in that: front and rear cover (4), bonnet disk (12), the short pump housing (5), the long pump housing (7), protecgulum disk (16) are combined as a whole by turnbuckle (6).
3, two-stage liquid-ring vacuum pump according to claim 1 is characterized in that: preceding short impeller (13), the axle (2) that comes into leaves between the wheel (15) is gone up installation axle sleeve (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95234908 CN2232094Y (en) | 1995-10-25 | 1995-10-25 | Two stage liquid ring type vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95234908 CN2232094Y (en) | 1995-10-25 | 1995-10-25 | Two stage liquid ring type vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2232094Y true CN2232094Y (en) | 1996-07-31 |
Family
ID=33878712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95234908 Expired - Fee Related CN2232094Y (en) | 1995-10-25 | 1995-10-25 | Two stage liquid ring type vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2232094Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821754A (en) * | 2014-03-25 | 2014-05-28 | 山东双轮埃姆科泵业有限公司 | Double stage vacuum pump clearance adjusting device |
| CN104976141A (en) * | 2015-05-15 | 2015-10-14 | 赵静 | Two-stage water-ring vacuum pump |
-
1995
- 1995-10-25 CN CN 95234908 patent/CN2232094Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821754A (en) * | 2014-03-25 | 2014-05-28 | 山东双轮埃姆科泵业有限公司 | Double stage vacuum pump clearance adjusting device |
| CN104976141A (en) * | 2015-05-15 | 2015-10-14 | 赵静 | Two-stage water-ring vacuum pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |