CN112922830A - Screw rotor for single-screw pump - Google Patents
Screw rotor for single-screw pump Download PDFInfo
- Publication number
- CN112922830A CN112922830A CN201911245530.1A CN201911245530A CN112922830A CN 112922830 A CN112922830 A CN 112922830A CN 201911245530 A CN201911245530 A CN 201911245530A CN 112922830 A CN112922830 A CN 112922830A
- Authority
- CN
- China
- Prior art keywords
- shell
- stator
- screw
- screw rotor
- housing
- 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.)
- Withdrawn
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
- F04C2/084—Toothed wheels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The invention relates to the technical field of screw rotor cleaning, in particular to a screw rotor for a single-screw pump, which comprises a first shell and a second shell, wherein the first shell and the second shell are connected together through a sealing mechanism, the first shell and the second shell are jointly inserted into a pump shell, the inner walls of the first shell and the second shell are respectively and fixedly connected with a first stator and a second stator, the screw rotor rotationally connected with the first stator and the second stator is arranged in the first stator and the second stator, the top end of the screw rotor is fixedly connected with a universal joint, and the top ends of the first shell and the second shell are respectively provided with a positioning mechanism. According to the invention, the pump shell is detached from the single-screw pump, and then the first shell and the second shell are pulled out from the pump shell, so that the first stator and the second stator can be easily separated, the screw rotor can be conveniently taken out from between the first stator and the second stator, and the cleaning and clearing of the screw rotor are facilitated.
Description
Technical Field
The invention relates to the technical field of screw rotor cleaning, in particular to a screw rotor for a single-screw pump.
Background
The single screw pump is an inner engaged type volume rotary device with a single screw rod engaged and rotated in an inner thread groove of a pump body, a sealing cavity of the pump is formed by mutually engaging an eccentric spiral body rotor and a screw rod lining stator, a medium spirally moves from one sealing cavity to the other sealing cavity along with the rotation of the screw rod and is finally discharged out of the pump body.
The screw rotors arranged in the single-screw pump are all integrated, and the screw rotors in the single-screw pump are difficult to clean after use, so that the service life of the screw rotors is shortened.
Disclosure of Invention
The invention aims to solve the defect that a screw rotor in a single-screw pump is difficult to clean in the prior art, and provides the screw rotor for the single-screw pump.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: the utility model provides a screw rotor for single-screw pump, includes first shell and second shell, first shell and second shell link together through sealing mechanism, and first shell and the common cartridge of second shell are in the pump case, and first shell and second shell inner wall be first stator of fixedly connected with and second stator respectively, first stator and second stator are inside to be equipped with rather than the screw rotor who rotates the connection, screw rotor top fixedly connected with universal joint, first shell and second shell top all are equipped with positioning mechanism.
Preferably, the first stator and the second stator are the same in shape and size, and the first stator and the second stator are both designed to be semi-cylindrical in shape.
Preferably, the first housing and the second housing are both made of stainless steel, and both the first housing and the second housing are designed in a semi-cylindrical shape.
Preferably, the positioning mechanism comprises a connecting lug fixed at the top ends of the first shell and the second shell, a connecting hole is formed in the connecting lug, and the position of the connecting hole coincides with the position of the mounting hole in the flange plate.
Preferably, the sealing mechanism includes two sealing strips and two sealing mouths, two the sealing strips are fixed respectively in second shell both sides face middle part, two the sealing mouth sets up respectively in first shell both sides face middle part, and two sealing mouths are in the same place with two sealing strip joint respectively.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, the pump shell is detached from the single-screw pump, and then the first shell and the second shell are pulled out from the pump shell, so that the first stator and the second stator can be easily separated, the screw rotor can be conveniently taken out from between the first stator and the second stator, and the cleaning and clearing of the screw rotor are facilitated.
Drawings
FIG. 1 is an exploded view of a screw rotor for a single screw pump according to the present invention;
FIG. 2 is a schematic view of a screw rotor for a single screw pump according to the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 1;
fig. 4 is an enlarged view at B in fig. 1.
In the figure: the pump casing 1, ring flange 2, mounting hole 3, first shell 4, second shell 5, second stator 6, first stator 7, screw rotor 8, universal joint 9, engaging lug 10, connecting hole 11, sealing strip 12, sealing mouth 13.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
As shown in fig. 1-4, a screw rotor for a single-screw pump comprises a first housing 4 and a second housing 5, wherein the first housing 4 and the second housing 5 are made of stainless steel, the first housing 4 and the second housing 5 are both designed into a semi-cylindrical shape, the first housing 4 and the second housing 5 are connected together through a sealing mechanism, the first housing 4 and the second housing 5 are jointly inserted into a pump housing 1, the inner walls of the first housing 4 and the second housing 5 are respectively and fixedly connected with a first stator 7 and a second stator 6, the first stator 7 and the second stator 6 are both same in shape and size, the first stator 7 and the second stator 6 are both designed into a semi-cylindrical shape, a screw rotor 8 rotationally connected with the first stator 7 and the second stator 6 is arranged inside, the top end of the screw rotor 8 is fixedly connected with a universal joint 9, the top ends of the first housing 4 and the second housing 5 are both provided with a positioning mechanism, when screw rotor 8 in the single-screw pump needs to be cleaned, firstly, the bolt connecting piece arranged on the mounting hole 3 on the flange plate 2 is detached, the pump shell 1 can be detached from the single-screw pump, then the connecting lug 10 is pinched after use, so that the first shell 4 and the second shell 5 can be pulled out from the pump shell 1, then the first stator 7 and the second stator 6 can be easily separated, the screw rotor 8 positioned between the first stator 7 and the second stator 6 can be conveniently taken out, the cleaning of the screw rotor 8 is facilitated, and the service life of the screw rotor 8 is prolonged.
Positioning mechanism is including fixing engaging lug 10 on first shell 4 and 5 tops of second shell, is equipped with connecting hole 11 on the engaging lug 10, and the position of connecting hole 11 coincides with 3 positions of mounting hole on the ring flange 2, and positioning mechanism mainly is with first shell 4 and second shell 5 and 1 fixed connection of pump case, prevents that first shell 4 and second shell 5 from rotating against the production, mainly relies on the cooperation of bolted connection spare and connecting hole 11 during the connection.
Sealing mechanism includes two sealing strips 12 and two sealing mouths 13, two sealing strips 12 are fixed respectively in second shell 5 both sides face middle part, two sealing mouths 13 set up respectively in first shell 4 both sides face middle part, and two sealing mouths 13 are in the same place with two sealing strips 12 block respectively, set up the compactness when sealing mechanism guarantees that second shell 5 pastes together with first shell 4, when sealing mouth 13 on first shell 4 and two sealing strips 12 blocks on the second shell 5 are in the same place, just formed fabulous leakproofness.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a screw rotor for single-screw pump, includes first shell (4) and second shell (5), its characterized in that, first shell (4) and second shell (5) link together through sealing mechanism, and first shell (4) and second shell (5) cartridge are in pump case (1) jointly, and first shell (4) and second shell (5) inner wall respectively fixedly connected with first stator (7) and second stator (6), inside screw rotor (8) rather than the rotation connection of being equipped with of first stator (7) and second stator (6), screw rotor (8) top fixedly connected with universal joint (9), first shell (4) and second shell (5) top all are equipped with positioning mechanism.
2. Screw rotor for a single-screw pump according to claim 1, characterised in that the first stator (7) and the second stator (6) are identical in shape and size and in that the first stator (7) and the second stator (6) are designed in the shape of half cylinders.
3. Screw rotor for a mono-screw pump according to claim 1, characterised in that the first housing (4) and the second housing (5) are made of stainless steel and that the first housing (4) and the second housing (5) are designed in the shape of half cylinders.
4. A screw rotor for a single-screw pump according to claim 1, wherein the positioning means comprises engaging lugs (10) fixed to the top ends of the first casing (4) and the second casing (5), the engaging lugs (10) being provided with engaging holes (11), the positions of the engaging holes (11) coinciding with the positions of the mounting holes (3) in the flange (2).
5. Screw rotor for a single-screw pump according to claim 1, characterised in that the sealing means comprise two sealing strips (12) and two sealing openings (13), the two sealing strips (12) being fixed in the middle of the two sides of the second housing (5), the two sealing openings (13) being arranged in the middle of the two sides of the first housing (4), and the two sealing openings (13) being snapped together with the two sealing strips (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911245530.1A CN112922830A (en) | 2019-12-07 | 2019-12-07 | Screw rotor for single-screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911245530.1A CN112922830A (en) | 2019-12-07 | 2019-12-07 | Screw rotor for single-screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112922830A true CN112922830A (en) | 2021-06-08 |
Family
ID=76161970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911245530.1A Withdrawn CN112922830A (en) | 2019-12-07 | 2019-12-07 | Screw rotor for single-screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112922830A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114810579A (en) * | 2022-04-24 | 2022-07-29 | 上海申贝泵业制造有限公司 | Single screw pump |
-
2019
- 2019-12-07 CN CN201911245530.1A patent/CN112922830A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114810579A (en) * | 2022-04-24 | 2022-07-29 | 上海申贝泵业制造有限公司 | Single screw pump |
| CN114810579B (en) * | 2022-04-24 | 2024-02-27 | 上海申贝泵业制造有限公司 | Single screw pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210608 |
|
| WW01 | Invention patent application withdrawn after publication |