CN2699009Y - Self-priming sliding vane pump - Google Patents
Self-priming sliding vane pump Download PDFInfo
- Publication number
- CN2699009Y CN2699009Y CN 03205043 CN03205043U CN2699009Y CN 2699009 Y CN2699009 Y CN 2699009Y CN 03205043 CN03205043 CN 03205043 CN 03205043 U CN03205043 U CN 03205043U CN 2699009 Y CN2699009 Y CN 2699009Y
- Authority
- CN
- China
- Prior art keywords
- pump
- shaft
- priming
- bearing
- sliding vane
- 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
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- Rotary Pumps (AREA)
Abstract
The utility model relates to a new type self-priming sliding vane pump. The inner curve of a pump body 1 is composed of a circular arc and an equal acceleration curve. The pump body 1 is provided with a priming port and a draining port in the radical direction; the priming port is communicated with the inlet of a pump and the draining port is communicated with the outlet of the pump. An inner rotor 7 is provided with a groove in the radial direction and is sleeved on a pump shaft 21 through a heating process. The inner part of the groove is provided with a sliding vane 6. The inner rotor 7 and the sliding vane 6 are eccentrically arranged inside the pump body 1. The pump shaft 21 is supported by two pump bearing end covers 5 on both ends; the shaft ends adopt two mechanical seals 8. The pump shaft 21 is positioned in the radial direction by a double needle roller bearing 15 whose two ends are arranged on the bearing end covers 5 of the pump shaft, and positioned in the axial direction by a plane bearing 22. The upper part of the shaft 21 is provided with a safety valve 30, and the stretching out end of the pump shaft 21 is provided with a shaft coupling device 11. Therefore, a new type self-priming sliding vane pump is formed. After being designed with the plane bearing 22, the self-priming sliding vane pump limits the axial moving of the pump, and avoids the friction and abrasion between the end face of the inner rotor 7 and the end face of the pump bearing end cover 23 caused by the axial moving. The utility model achieves the practical purpose and increases the economical efficiency and reliability of the equipment used in the petrochemical industry.
Description
Affiliated technical field
The utility model relates to a kind of novel sliding slab self suction pump.
Background technique
Existing sliding slab self suction pump, pump shaft adopts the two needle bearings location that is contained on the two end pump bearing end caps, pump shaft is in quick condition during work, in case generation axial force, then can cause the internal rotor end face of hot jacket on pump shaft and the friction and wear of pump bearing end cap end face, and this process can be aggravated along with the running of pump.This is because of the friction and wear along with internal rotor end face and pump bearing end cap end face, and the gap at the back side increases, thereby has increased the pressure at the back side, has further increased axial force, has aggravated friction and wear.This process can cause the damage of pump component at short notice, influences the normal use of pump.Yet the axial force during pump work is inevitable, this be because, owing to add internal rotor groove and shaft axis nonparallelism in man-hour, internal rotor excircle dimension inconsistent, pump housing internal surface two ends size inconsistent, and two splayings inconsistent in the assembly process, or the like, all can cause axial force, motor also can produce axial force in starting process simultaneously.Therefore, because the existence of axial force has had a strong impact on the normal use of pump.
Summary of the invention
The purpose of this utility model provides a kind of novel sliding slab self suction pump, is used for train and unloads groove, harbour emptying, sweeps occasion such as storehouse, replaces vacuum system, improves the Economy and the reliability of petrochemical industry equipment operation.
The purpose of this utility model is achieved like this, the pump housing 1 internal surface is made up of circular arc and iso-variable velocity curve, radially has suction, liquid port, and liquid sucting port is communicated with pump inlet, liquid port is communicated with pump discharge, internal rotor 7 radially has groove, and hot jacket is adorned slide plate 6 in the groove on pump shaft 21, together be contained in the pump housing 1 prejudicially, by 5 supportings of two end pump bearing end caps, shaft end seal adopts 2 mechanical seals 8, top dress safety valve 30.Pump shaft 21 is radially located by two needle bearings 15 that two ends are contained on the pump bearing end cap 5, has designed plane bearing 22 at pump shaft stifle 23 ends, and plane bearing 22 inner rings are contained on the pump shaft 21, and the outer ring is contained on the stifle 23.After adopting plane bearing 22, the axial float when having limited pump work, thus avoided the friction and wear of internal rotor 7 end faces and pump bearing end cap 5 end faces, improved the normal reliability of operation of pump greatly, improved pump manufacturing, installation conditions simultaneously.Therefore, can be effectively applied to petrochemical industry, replace vacuum system, Economy and reliability that raising equipment uses.
Description of drawings:
Fig. 1 novel sliding slab self suction pump of the present utility model
Embodiment
Shown in Figure 1, the pump housing 1 inner curve is made up of circular arc and constant acceleration curve, radially have suction, liquid port, liquid sucting port is communicated with the import of pump, liquid port is communicated with delivery side of pump, internal rotor 7 radially has groove, hot jacket is on pump shaft 21, and dress slide plate 6 together is contained in the pump housing 1 prejudicially in the groove, pump shaft 21 is located by two needle bearings 15 that two ends are contained on the pump bearing end cap 5, at pump shaft stifle 23 ends dress plane bearing 22, shaft end seal adopts two mechanical seals 8, and safety valve 30 is equipped with on the pump housing 1 top, pump shaft 21 external part coupling 11 are formed novel sliding slab self suction pump.
Claims (2)
1. the utility model relates to a kind of novel sliding slab self suction pump, it is characterized in that: the pump housing (1) inner curve is made up of circular arc and iso-variable velocity curve, radially have suction, liquid port, liquid sucting port is communicated with pump inlet, liquid port is communicated with pump discharge, internal rotor (7) radially has groove, hot jacket is on pump shaft (21), dress slide plate (6) in the groove, together be contained in the pump housing (1), by the supporting of two end pump bearing end caps (5), shaft end seal adopts two mechanical seals (8), and pump shaft (21) is radially located by two needle bearings (15) that two ends are contained on the pump bearing end cap (5), axially locate by the plane bearing (22) of pump shaft stifle (23) end, top dress safety valve (30), pump shaft (21) external part dress coupling (11) is formed novel sliding slab self suction pump.
2. novel sliding slab self suction pump according to claim 1 is characterized in that: at pump shaft stifle (23) end design plane bearing (22), plane bearing (22) inner ring is contained on the pump shaft (21), and the outer ring is contained on the stifle (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03205043 CN2699009Y (en) | 2003-07-20 | 2003-07-20 | Self-priming sliding vane pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03205043 CN2699009Y (en) | 2003-07-20 | 2003-07-20 | Self-priming sliding vane pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2699009Y true CN2699009Y (en) | 2005-05-11 |
Family
ID=34754929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03205043 Expired - Fee Related CN2699009Y (en) | 2003-07-20 | 2003-07-20 | Self-priming sliding vane pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2699009Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775375A (en) * | 2012-10-25 | 2014-05-07 | 贵州中烟工业有限责任公司 | Water pump sealing device |
| CN104863853A (en) * | 2014-06-24 | 2015-08-26 | 江苏策略自动化***有限公司 | Rotating fluid machine and rotor axial movement eliminating method |
| US20170152852A1 (en) * | 2014-06-24 | 2017-06-01 | Jiangsu Fengtai Fluid Machinery Technology Co., Ltd. | Rotary fluid machinery and method for eliminating axial rotor displacement |
-
2003
- 2003-07-20 CN CN 03205043 patent/CN2699009Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775375A (en) * | 2012-10-25 | 2014-05-07 | 贵州中烟工业有限责任公司 | Water pump sealing device |
| CN104863853A (en) * | 2014-06-24 | 2015-08-26 | 江苏策略自动化***有限公司 | Rotating fluid machine and rotor axial movement eliminating method |
| US20170152852A1 (en) * | 2014-06-24 | 2017-06-01 | Jiangsu Fengtai Fluid Machinery Technology Co., Ltd. | Rotary fluid machinery and method for eliminating axial rotor displacement |
| CN104863853B (en) * | 2014-06-24 | 2017-10-27 | 江苏策略自动化***有限公司 | Rotary type fluid machine and rotor axial play removing method |
| US10280921B2 (en) * | 2014-06-24 | 2019-05-07 | Jiangsu Fengtai Fluid Machinery Technology Co., Ltd. | Rotary fluid machinery and method for eliminating axial rotor displacement |
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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 |