CN2553139Y - Rotor pump - Google Patents
Rotor pump Download PDFInfo
- Publication number
- CN2553139Y CN2553139Y CN 02274072 CN02274072U CN2553139Y CN 2553139 Y CN2553139 Y CN 2553139Y CN 02274072 CN02274072 CN 02274072 CN 02274072 U CN02274072 U CN 02274072U CN 2553139 Y CN2553139 Y CN 2553139Y
- Authority
- CN
- China
- Prior art keywords
- rotor
- pump
- gear teeth
- housing
- rotor pump
- 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 rotor pump. Two rotors which are singly and synchronously rotate are arranged in the casing of the pump, and three gear teeth at an equal distance are arranged on each rotor. The rotor with the structure can bear the larger radial force, thus not only being incapable of improving the service life of the pump, but also increasing the flow quantity of pumping fluid under the condition of the same external dimension and rotation rate of the pump, and not increasing the cost of the pump.
Description
Technical field: the utility model relates to a kind of liquid that is used to pump, and particularly pumps the rotor pump of mucus.
Background technique: traditional rotor pump is usually by two rotors that size is identical that are installed in the housing, and be installed in each epitrochanterian gear teeth and constitute, wherein, the described epitrochanterian gear teeth radial direction of rotor usually are provided with two, each epitrochanterian two gear teeth keeps point-blank, and no matter when static state still dynamically the time two groups of gear teeth remain vertically.This kind rotor pump is being given under the rotational speed condition of rotor, divides vacuum by the disengagement part generating unit of the rotation gear teeth, causes in the fluid suction pump, and by the volume boost pressure that the engagement back changes, forces the fluid that enters in the housing to be discharged from exhaust port.But owing to have only two gear teeth on each rotor in this kind pump, and then it is excessive to cause taking turns the spacing of between cog, thus when conveying liquid, can produce big capacity of reflux, so the efficient of this kind pump is lower; Secondly, in the ordinary course of things, one end of rotor is fixed on the housing by bearing, the other end is a free end, and free end will carry bigger radial effect power in the process of suction or drain, it is few to add the epitrochanterian gear teeth, the ability of strength, thus rotor bow easily caused, and then cause shorten the working life of this kind pump; In addition, after the synthetic geometry shape of housing was determined, its flow of pumping liquid was just definite, wants to change flow, can only can realize by the rotating speed that speed change gear changes rotor.
Summary of the invention: task of the present utility model provide a kind of utilization dwindle the wheel blade gap distance mode solve liquid return and easily cause the rotor bow problem, also can improve the rotor pump that it pumps liquid efficient simultaneously.
The rotor pump that the utility model proposed has a housing that has import and outlet, and two independent and rotors that rotate synchronously are installed in this housing, and at least three gear teeth of equidistances at interval are installed on described each rotor.
The radially angle of described adjacent two gear teeth is in 120 degree.
The section of described each gear teeth caves inward along it with radially being similar to circular arc.
Because the utility model has adopted the structure of at least three gear teeth on each rotor, the advantage that this kind structure compared with prior art at first reflects is to bear bigger radial force, and then the working life that can improve product, simultaneously because the increase of the gear teeth, this pump can increase the flow of pumping liquid under the condition of identical appearance size and rotating speed, this pump has just changed the structure of the gear teeth in addition, can't increase how many costs of pump.
Description of drawings: accompanying drawing 1 is an embodiment's of the utility model a cross-sectional view.
Embodiment: referring to Fig. 1, it provides the embodiment's of rotor pump that the utility model proposes overall structure.Rotor pump 1 comprises that an external form is substantially and is similar to two semi-cylindrical housings 11, be used to be drawn into the import 12 and the outlet 13 that is used for output liquid of liquid radially being provided with of housing 11, because housing 11 and import 12, outlet 13 are same as the prior art substantially or close, so, do not provide its surface structure among Fig. 1.
Be equipped with two in the above-mentioned housing 11 separately and the rotors 14 that rotate synchronously, and on each rotor 14, be equipped with three radially angle be the gear teeth 15 at 120 degree angles, the section of each gear teeth 15 caves inward 16 along it with radially being similar to circular arc.Rotor 14 has an end to extend to outside the housing 11, and provides the parts that rotatablely move to join with can be it, and the other end is the free end that is retained in the housing 11.When rotor 14 rotates, the gear teeth 15 also rotate thereupon, and make import 12 zones produce vacuum, can be with in the liquid suction housing 11, when it is rotated further, the liquid of suction is expressed to outlet 13 zones, make outlet 13 zones boost pressure under isometric condition in the liquid process this continuously the extruding, force the liquid that enters in the housing 11 to be discharged, and then finish the task of pumping liquid through exporting 13.
Claims (3)
1. a rotor pump has a housing that has import and outlet, and two independent and rotors that rotate synchronously are installed in this housing, it is characterized in that: at least three gear teeth of equidistances at interval are installed on described each rotor.
2. rotor pump according to claim 1 is characterized in that: the radially angle of described adjacent two gear teeth is in 120 degree.
3. rotor pump according to claim 1 and 2 is characterized in that: the section of described each gear teeth caves inward along it with radially being similar to circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02274072 CN2553139Y (en) | 2002-07-06 | 2002-07-06 | Rotor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02274072 CN2553139Y (en) | 2002-07-06 | 2002-07-06 | Rotor pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2553139Y true CN2553139Y (en) | 2003-05-28 |
Family
ID=33738401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02274072 Expired - Fee Related CN2553139Y (en) | 2002-07-06 | 2002-07-06 | Rotor pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2553139Y (en) |
-
2002
- 2002-07-06 CN CN 02274072 patent/CN2553139Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030528 Termination date: 20090806 |