CN106907318A - A kind of single-screw (single screw) pump - Google Patents
A kind of single-screw (single screw) pump Download PDFInfo
- Publication number
- CN106907318A CN106907318A CN201710260518.2A CN201710260518A CN106907318A CN 106907318 A CN106907318 A CN 106907318A CN 201710260518 A CN201710260518 A CN 201710260518A CN 106907318 A CN106907318 A CN 106907318A
- Authority
- CN
- China
- Prior art keywords
- screw
- accommodating chamber
- pump
- screw rod
- coupling arrangement
- 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.)
- Pending
Links
Classifications
-
- 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
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
- F04C13/001—Pumps for particular liquids
- F04C13/002—Pumps for particular liquids for homogeneous viscous liquids
-
- 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
-
- 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
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The invention belongs to screw pump technology field, more particularly to a kind of single-screw (single screw) pump, the accommodating chamber runs through blow-off pipe through the annular seal space that the sealing of screw rod and the bushing of its external peripheral surface is cooperatively formed, stretch into blow-off pipe in described screw rod one end, its other end for stretching into accommodating chamber Single port is connected axially to coupling arrangement one end, the other end of the coupling arrangement is connected to transmission device through the mechanically-sealing apparatus outside accommodating chamber another port, the present invention is solved and vortex is easily formed when prior art has pumped (conveying) medium and to the sticky sensitive too high of medium, it is not easy the problem of transfer of highly viscous medium, with not forming vortex, can transfer of highly viscous medium, go out liquid continuous uniform, pressure stability, it is easy to assembly and disassembly, it is suitable to the Advantageous Effects of suction thick liquid.
Description
Technical field
The invention belongs to screw pump technology field, more particularly to a kind of single-screw (single screw) pump.
Background technology
Screw pump is volume type rotor pump, and it is to change to suck by the volume of the annular seal space formed by screw and bushing
With discharge liquid.Screw pump by screw rod number be divided into single-screw (single screw) pump, it is double, three and five-screw pump, be flow the characteristics of screw pump
Steadily, pressure fluctuation is small, have low suction capacity, noise, efficiency high, long lifespan, reliable operation, and single-screw (single screw) pump is that single screw rod exists
The pump of engagement rotation in the internal thread groove of the pump housing, easily forms vortex and to the viscosity of medium when prior art has pumped (conveying) medium
It is sensitive too high, it is not easy to the problem of transfer of highly viscous medium.
The content of the invention
The present invention provides a kind of single-screw (single screw) pump, there is pumped (conveying) medium to solve to propose prior art in above-mentioned background technology
Shi Rongyi forms vortex and to the sticky sensitive too high of medium, it is not easy to the problem of transfer of highly viscous medium.
Technical problem solved by the invention is realized using following technical scheme：A kind of single-screw (single screw) pump, including run through
The accommodating chamber of suction line, the annular seal space insertion that the accommodating chamber is cooperatively formed through the sealing of screw rod and the bushing of its external peripheral surface
In blow-off pipe, blow-off pipe is stretched into described screw rod one end, and its other end for stretching into accommodating chamber Single port is connected axially to coupling arrangement
One end, the other end of the coupling arrangement is connected to transmission device through the mechanically-sealing apparatus outside accommodating chamber another port.
Further, coupling arrangement is axially assembled in the accommodating chamber.
Further, the coupling arrangement includes universal joint, and described universal joint one end is connected axially to the other end of screw rod, its
The other end is connected axially to one end of connecting shaft, and the other end of the connecting shaft is connected axially to be inserted into the transmission dress of accommodating chamber
The power transmission shaft put.
Further, the mechanically-sealing apparatus include the stuffing-box of built-in filler, and described filler letter one end is sealedly attached to
Outside accommodating chamber another port, the sealed body mechanical connection of its filler internal diameter is in the cylindrical of the transmission device for stretching out in accommodating chamber
Perimeter surface.
Further, the transmission device includes power transmission shaft, and described power transmission shaft one end is inserted into accommodating chamber, its other end warp
The drive bearing support for being socketed on it is connected to bracket.
Advantageous Effects：
1st, using the accommodating chamber for running through suction line, the accommodating chamber is through screw rod and the bushing of its external peripheral surface for this patent
The annular seal space that cooperatively forms of sealing run through blow-off pipe, blow-off pipe is stretched into described screw rod one end, and it stretches into accommodating chamber Single port
The other end be connected axially to coupling arrangement one end, the other end of the coupling arrangement through accommodating chamber another port outside it is mechanical close
Seal apparatus are connected to transmission device, by screw pump is to engage spatial volume change and movement by what the pump housing and screw rod were formed
Come the drum pump for conveying liquid or being allowed to supercharging, when driving screw rod is rotated, the driven screw that drive is engaged is rotated together,
The screw rod engagement spatial volume of suction chamber one end gradually increases, and pressure reduction, liquid enters engagement space under differential pressure action and holds
Product, when volume increase to it is maximum and when forming an annular seal space, liquid just in annular seal space one by one continuously along axial movement, directly
To discharge chamber one end, the screw rod engagement spatial volume at this moment discharging chamber one end is gradually reduced, and liquid is discharged, and single-screw is defeated
Fortune pump, its main working parts are the screw rods of eccentric screw body, and also referred to as rotor and inner surface are served as a contrast in the screw rod in bifilar helix face
Set, also referred to as stator, its operation principle are that on the one hand screw rod rotates around the axis of itself, separately when motor drives pump shaft to rotate
On the one hand it is rolled along sleeve inner surface again, then forms the sealed chamber of pump.Screw rod each rotation, liquid in annular seal space to
One pitch of preceding propulsion, with the continuous rotation of screw rod, liquid spiral fashion presses to another annular seal space from an annular seal space,
Finally extrude the pump housing.Screw pump is a kind of machinery of new conveying liquid, due to the particular geometry of two part, difference
Single sealed volume is formed, medium is low by axially uniformly carrying out flowing, internal flow velocity, and volume keeps constant, pressure stability, because
Without producing vortex and stirring, because stator is made from various elastomeric materials, so conveying of this pump to high viscosity fluid
With the conveying containing hard suspended particulate medium or containing fiber medium, the characteristics of have general pump kind institute not competent, therefore tool
Have do not form vortex, to the sticky insensitive of medium, can transfer of highly viscous medium the characteristics of.
2nd, this patent has simple structure, safe and reliable, easy maintenance, goes out liquid continuous uniform, pressure stability
The advantages of.
3rd, this patent is using coupling arrangement is axially assembled in the accommodating chamber, and the coupling arrangement includes universal joint, described
Universal joint one end is connected axially to the other end of screw rod, and its other end is connected axially to one end of connecting shaft, the connecting shaft
The other end is connected axially to be inserted into the power transmission shaft of the transmission device of accommodating chamber, because transmission can use shaft coupling direct-drive,
Or the device speed change such as buncher, V-belt, gearbox is used, this pump component is few, compact conformation, small volume, and maintenance is easy,
Rotor and stator are the consumable accessorys of this pump, and simple structure is easy to assembly and disassembly.
4th, this patent simple structure, practicality, are most suitable for suction thick liquid.
Brief description of the drawings
Fig. 1 is a kind of structural representation of single-screw (single screw) pump of the invention.
Specific embodiment
The present invention is described further below in conjunction with accompanying drawing：
In figure：1- suction lines, 2- accommodating chambers, 3- screw rods, 4- bushings, 5- annular seal spaces, 6- blow-off pipes, 7- coupling arrangements, 8-
Mechanically-sealing apparatus, 9- transmission devices, 10- universal joints, 11- connecting shafts, 12- fillers, 13- stuffing-boxes, 14- seals, 15- is passed
Moving axis, 16- drive bearings, 17- brackets.
Embodiment：
The present embodiment：As shown in figure 1, a kind of pump of single screw rod 3, including the accommodating chamber 2 of suction line 1 is run through, the receiving
Chamber 2 runs through blow-off pipe 6, the screw rod 3 through the annular seal space 5 that the sealing of screw rod 3 and the bushing 4 of its external peripheral surface is cooperatively formed
Blow-off pipe 6 is stretched into one end, and its other end for stretching into the Single port of accommodating chamber 2 is connected axially to the one end of coupling arrangement 7, the connection dress
The other end for putting 7 is connected to transmission device 9 through the mechanically-sealing apparatus 8 outside the another port of accommodating chamber 2.
Due to running through the accommodating chamber of suction line, the accommodating chamber is matched somebody with somebody through screw rod with the sealing of the bushing of its external peripheral surface
Close the annular seal space for being formed and run through blow-off pipe, blow-off pipe is stretched into described screw rod one end, its other end for stretching into accommodating chamber Single port
Coupling arrangement one end is connected axially to, the other end of the coupling arrangement connects through the mechanically-sealing apparatus outside accommodating chamber another port
Transmission device is connected to, by screw pump is to engage spatial volume change and movement to convey liquid by what the pump housing and screw rod were formed
Body is allowed to the drum pump being pressurized, and when driving screw rod is rotated, the driven screw that drive is engaged is rotated together, suction chamber one
The screw rod engagement spatial volume at end gradually increases, and pressure reduction, liquid enters engagement spatial volume under differential pressure action, works as volume
When increasing to maximum and forming an annular seal space, liquid is just in annular seal space one by one continuously along axial movement, until discharging chamber
One end, the screw rod engagement spatial volume at this moment discharging chamber one end is gradually reduced, and liquid is discharged, and single-screw transports pump, it
Main working parts be eccentric screw body screw rod, also referred to as rotor and inner surface in bifilar helix face screw rod bushing, also referred to as
Stator, its operation principle be when motor drive pump shaft rotate when, screw rod on the one hand around itself axis rotate, on the other hand it
Rolled along sleeve inner surface again, then form the sealed chamber of pump.Screw rod each rotation, the liquid in annular seal space pushes ahead one
Individual pitch, with the continuous rotation of screw rod, liquid spiral fashion presses to another annular seal space from an annular seal space, finally extrudes
The pump housing.Screw pump is a kind of machinery of new conveying liquid, due to the particular geometry of two part, is formed respectively independent
Sealed volume, medium is by axially uniformly carrying out flowing, and internal flow velocity is low, and volume keeps constant, pressure stability, thus will not produce
Raw vortex and agitation, because stator is made from various elastomeric materials, so this pump is to the conveying of high viscosity fluid and containing hard
Matter suspended particulate medium or the conveying containing fiber medium, the characteristics of have general pump kind institute not competent, therefore with not formed
Vortex, to the sticky insensitive of medium, can transfer of highly viscous medium the characteristics of.
Coupling arrangement 7 is axially assembled in the accommodating chamber 2.
The coupling arrangement 7 includes universal joint 10, and the one end of the universal joint 10 is connected axially to the other end of screw rod 3, its
The other end is connected axially to one end of connecting shaft 11, and the other end of the connecting shaft 11 is connected axially to be inserted into accommodating chamber 2
The power transmission shaft 15 of transmission device 9.
Due to axially assembling coupling arrangement in the accommodating chamber, the coupling arrangement includes universal joint, the universal joint one
End is connected axially to the other end of screw rod, and its other end is connected axially to one end of connecting shaft, the other end axle of the connecting shaft
To the power transmission shaft for being connected to the transmission device for being inserted into accommodating chamber, because transmission can use shaft coupling direct-drive, or using tune
The device speed change such as speed motor, V-belt, gearbox, this pump component is few, compact conformation, small volume, and maintenance is easy, rotor and fixed
Son is the consumable accessory of this pump, and simple structure is easy to assembly and disassembly.
The mechanically-sealing apparatus 8 include the stuffing-box 13 of built-in filler 12, and the one end of described filler letter 13 is sealedly attached to
Outside the another port of accommodating chamber 2, its sealed mechanical connection of body 14 of internal diameter of filler 12 is in the transmission device for stretching out in accommodating chamber 2
9 external peripheral surface.
The transmission device 9 includes power transmission shaft 15, and the one end of the power transmission shaft 15 is inserted into accommodating chamber 2, its other end warp
The support of drive bearing 16 for being socketed on it is connected to bracket 17.
Due to regulation and installation by single-screw (single screw) pump simple structure, with safe and reliable, easy maintenance, go out
The advantages of liquid continuous uniform, pressure stability.
Due to single-screw (single screw) pump practicality, therefore, it is most suitable for suction thick liquid.
Operation principle：
, by running through the accommodating chamber of suction line, the accommodating chamber is through the bushing of screw rod and its external peripheral surface for this patent
The annular seal space that sealing is cooperatively formed runs through blow-off pipe, and blow-off pipe is stretched into described screw rod one end, and it stretches into accommodating chamber Single port
The other end is connected axially to coupling arrangement one end, and the other end of the coupling arrangement is through the mechanical seal outside accommodating chamber another port
Device is connected to transmission device, by screw pump is that the spatial volume that engages formed by the pump housing and screw rod changes and mobile next
Conveying liquid is allowed to the drum pump being pressurized, and when driving screw rod is rotated, the driven screw that drive is engaged is rotated together, is inhaled
The screw rod engagement spatial volume for entering chamber one end gradually increases, and pressure reduction, liquid enters engagement spatial volume under differential pressure action,
When volume increase to it is maximum and when forming an annular seal space, liquid just in annular seal space one by one continuously along axial movement, until
Discharge chamber one end, the screw rod engagement spatial volume at this moment discharging chamber one end is gradually reduced, and liquid is discharged, and single-screw is transported
Pump, its main working parts are the screw rods of eccentric screw body, and also referred to as rotor and inner surface are in the screw rod bushing in bifilar helix face,
Also referred to as stator, its operation principle is that on the one hand screw rod rotates around the axis of itself, the opposing party when motor drives pump shaft to rotate
It is rolled along sleeve inner surface again in face, then forms the sealed chamber of pump.Screw rod each rotation, the liquid in annular seal space is pushed away forward
Enter a pitch, with the continuous rotation of screw rod, liquid spiral fashion presses to another annular seal space from an annular seal space, finally
The extrusion pump housing.Screw pump is a kind of machinery of new conveying liquid, due to the particular geometry of two part, is formed respectively
Single sealed volume, medium is low by axially uniformly carrying out flowing, internal flow velocity, and volume keeps constant, pressure stability, thus not
Vortex can be produced and stirred, because stator is made from various elastomeric materials, so this pump is to the conveying of high viscosity fluid and contains
There are hard suspended particulate medium or the conveying containing fiber medium, the characteristics of have general pump kind institute not competent, the present invention is solved
Prior art easily forms vortex and sensitive too high to the viscosity of medium when there is pumped (conveying) medium, it is not easy to which transfer of highly viscous is situated between
The problem of matter, with do not formed vortex, can transfer of highly viscous medium, go out liquid continuous uniform, pressure stability, be easy to assembly and disassembly,
It is suitable to the Advantageous Effects of suction thick liquid.
Using technical scheme, or those skilled in the art is under the inspiration of technical solution of the present invention, design
Go out similar technical scheme, and reach above-mentioned technique effect, be to fall into protection scope of the present invention.
Claims (5)
1. a kind of single-screw (single screw) pump, it is characterised in that the accommodating chamber including running through suction line, the accommodating chamber through screw rod and its outside
The annular seal space that the sealing of the bushing of circumferential surface is cooperatively formed runs through blow-off pipe, and blow-off pipe is stretched into described screw rod one end, and it is stretched
The other end for entering accommodating chamber Single port is connected axially to coupling arrangement one end, and the other end of the coupling arrangement is another through accommodating chamber
Mechanically-sealing apparatus outside port are connected to transmission device.
2. a kind of single-screw (single screw) pump according to claim 1, it is characterised in that axial assembling connection dress in the accommodating chamber
Put.
3. a kind of single-screw (single screw) pump according to claim 1, it is characterised in that the coupling arrangement includes universal joint, described
Universal joint one end is connected axially to the other end of screw rod, and its other end is connected axially to one end of connecting shaft, the connecting shaft
The other end is connected axially to be inserted into the power transmission shaft of the transmission device of accommodating chamber.
4. a kind of single-screw (single screw) pump according to claim 1, it is characterised in that the mechanically-sealing apparatus include built-in filler
Stuffing-box, described filler letter one end is sealedly attached to outside accommodating chamber another port, the sealed body mechanical seal of its filler internal diameter
It is connected to the external peripheral surface of the transmission device for stretching out in accommodating chamber.
5. a kind of single-screw (single screw) pump according to claim 1, it is characterised in that the transmission device includes power transmission shaft, described
Power transmission shaft one end is inserted into accommodating chamber, and drive bearing support of its other end through being socketed on it is connected to bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710260518.2A CN106907318A (en) | 2017-04-20 | 2017-04-20 | A kind of single-screw (single screw) pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710260518.2A CN106907318A (en) | 2017-04-20 | 2017-04-20 | A kind of single-screw (single screw) pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106907318A true CN106907318A (en) | 2017-06-30 |
Family
ID=59209960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710260518.2A Pending CN106907318A (en) | 2017-04-20 | 2017-04-20 | A kind of single-screw (single screw) pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106907318A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114341496A (en) * | 2019-07-16 | 2022-04-12 | 阿诺尔德耶格尔控股有限公司 | Stator for eccentric screw pump |
-
2017
- 2017-04-20 CN CN201710260518.2A patent/CN106907318A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114341496A (en) * | 2019-07-16 | 2022-04-12 | 阿诺尔德耶格尔控股有限公司 | Stator for eccentric screw pump |
| CN114341496B (en) * | 2019-07-16 | 2023-10-13 | 阿诺尔德耶格尔控股有限公司 | Stator for eccentric screw pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170630 |
|
| WD01 | Invention patent application deemed withdrawn after publication |