CN2826009Y - Positive displacement pump - Google Patents
Positive displacement pump Download PDFInfo
- Publication number
- CN2826009Y CN2826009Y CN 200520051908 CN200520051908U CN2826009Y CN 2826009 Y CN2826009 Y CN 2826009Y CN 200520051908 CN200520051908 CN 200520051908 CN 200520051908 U CN200520051908 U CN 200520051908U CN 2826009 Y CN2826009 Y CN 2826009Y
- Authority
- CN
- China
- Prior art keywords
- pump
- rotor
- baffle plate
- pressure zone
- cavity
- 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 positive displacement pump which is characterized in that a rotor 7 rotates by winding around a central axis of a pump cavity in the circular pump cavity; when rotating, some parts of the rotor 7 always contact with a pump shell 5; a baffle plate 4 in the pump shell 5 performs reciprocating movement owing to the rotation of the rotor 7 and the action of a spring; one end of the baffle plate 4 always contacts with the rotor 7 in movement; the cavity wall of the pump at both sides of the baffle plate 4 is respectively provided with an inlet and an outlet. When the rotor rotates, the baffle plate 4 and the rotor 7 jointly divides the pump cavity into a high pressure zone and a low pressure zone. Fluids enters the low pressure zone from the inlet, and fluids in the high pressure zone is extruded outwards. The pump has the advantage of simple structure, and can have larger output power.
Description
Technical field the utility model relates to displacement pump, is used for sucking and discharging fluid.
The pump that background technique is used now has gear, vane pump etc., and their deficiency is that volumetric efficiency is low, complex structure, manufacturing difficulty, and power is big inadequately.
The summary of the invention the purpose of this utility model is that design is a kind of simple in structure and firm, thereby makes the output power can be bigger, and the higher pump of volumetric efficiency.
The technical solution of the utility model is in circular pump chamber, on the pump shaft at pump chamber center rotor is installed, and some contact pump case of rotor has a baffle plate that radially is provided with in the pump case, and an end of baffle plate contacts with rotor, and the other end connects spring.Drive outlet on the pump chamber wall of baffle plate both sides.Drive the rotor action during pump shaft rotation, rotor rotates around the pump chamber central shaft, during rotation rotor some contact pump case all the time, baffle plate is because the rotation of rotor and the effect to-and-fro motion of spring, an end of baffle plate contacts rotor all the time in the motion, baffle plate and rotor are separated into zone of high pressure and low pressure area to pump chamber jointly like this, realize sucking and discharging fluid.
The used part of the utility model is less, and is simple in structure, and rotor and baffle plate can bear bigger power, thereby bigger power can be arranged, conveyance fluid quickly, or liquid is sent to higher place.
Appended drawings is the plan view of embodiment, adopts full section.1. plug screw 2. cover plates 3. springs 4. baffle plates 5. pump cases 6. pump shafts 7. rotors 8. flat keys
Embodiment further describes the utility model in conjunction with implementing accompanying drawing.As described in Figure, pump case 5 has a circular pump chamber, and pump shaft 6 is installed at the pump chamber center, in pump chamber, rotor 7 is installed on the pump shaft 6, rotor 7 some contact pump case 5.One baffle plate 4 that radially is provided with that contacts with rotor 7 is arranged in the pump case 5, and baffle plate 4 width are consistent with the pump chamber width, and the other end of baffle plate 4 connects spring 3.Spring 3 is a pressure spring, the other end plug screw 1 on the cover plate 2 of ining succession, and spring 3 has been compressed certain length during installation.Cover plate 2 is fixed on the pump case 5, and when the degree of depth of cover plate 2 inner chambers should guarantee that the length in baffle plate 4 stretches into cover plate 2 reaches the longest, the length that baffle plate 4 stretches into cover plate 2 added that the length of compressed spring 3 should be less than the cover plate 2 inner chamber degree of depth.Drive into, export on the pump chamber wall of baffle plate 4 both sides, when pump shaft 6 drove rotors 7 rotations, some contacted rotor 7 with pump case 5 all the time; Baffle plate 4 in the pump case 5 is because the effect of the rotation of rotor 7 and spring 3 and to-and-fro motion, and an end of baffle plate 4 contact with rotor 7 all the time in the motion, and baffle plate 4 and rotor 7 are separated into zone of high pressure and low pressure area to pump chamber jointly like this.Major diameter at rotor 7 is turned in the exit procedure by import, and a side volume of baffle plate 4 increases, and pressure reduces, and forms low pressure area, and fluid enters low pressure area by import; Its opposite side volume reduces, and pressure increases, and forms the zone of high pressure, and the fluid of zone of high pressure is pressed towards outlet.
The power of this displacement pump is by pump shaft 6 inputs, and pump shaft 6 can be the cylindrical of trough of belt with the part that the hole of rotor 7 combines, and drives rotor 7 by flat key 8, also can be prismatic.
Rotor 7 can be the eccentric circle pillar, also can be constant velocity spiral shape or other shape, and its profile line should be smooth.
Plug screw 1 is used for the degree of tightness of Regulation spring 3, to guarantee that baffle plate 4 is in contact condition with rotor 7 all the time; When the length that baffle plate 4 stretches into pump chamber reached the longest, an end of its contact spring 3 should have certain interval with the outer surface of pump case 5.
Claims (1)
- A kind of displacement pump is characterized in that: the rotor in the circular pump chamber rotates around the central shaft of pump chamber, during rotation rotor some contact pump case all the time; Baffle plate in the pump case is reciprocating, and an end of baffle plate contacts rotor all the time in the motion; On the pump chamber wall of baffle plate both sides, drive into respectively, export.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520051908 CN2826009Y (en) | 2005-09-06 | 2005-09-06 | Positive displacement pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520051908 CN2826009Y (en) | 2005-09-06 | 2005-09-06 | Positive displacement pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2826009Y true CN2826009Y (en) | 2006-10-11 |
Family
ID=37066192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520051908 Expired - Fee Related CN2826009Y (en) | 2005-09-06 | 2005-09-06 | Positive displacement pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2826009Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047140A (en) * | 2012-12-09 | 2013-04-17 | 马燕翔 | Sliding vane pump and compressor with similar structure |
-
2005
- 2005-09-06 CN CN 200520051908 patent/CN2826009Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047140A (en) * | 2012-12-09 | 2013-04-17 | 马燕翔 | Sliding vane pump and compressor with similar structure |
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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 |