CN203783889U - Adjustable liquid medium conveying screw pump - Google Patents
Adjustable liquid medium conveying screw pump Download PDFInfo
- Publication number
- CN203783889U CN203783889U CN201420095107.4U CN201420095107U CN203783889U CN 203783889 U CN203783889 U CN 203783889U CN 201420095107 U CN201420095107 U CN 201420095107U CN 203783889 U CN203783889 U CN 203783889U
- Authority
- CN
- China
- Prior art keywords
- screw
- screw rod
- pump
- liquid medium
- lining
- 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
Links
Landscapes
- Rotary Pumps (AREA)
Abstract
The utility model discloses an adjustable liquid medium conveying screw pump, and aims to solve the problems that a conventional liquid medium conveying screw pump is small in application range and main parts are short in service life. The adjustable liquid medium conveying screw pump consists of a motor component, a universal shaft component, a pump body and a base, wherein the pump body comprises an eccentric screw and a screw lining which are matched with each other; the eccentric screw is connected with a driven part of the universal shaft component; a driving part of the universal shaft component is connected with an output shaft of the motor component. The adjustable liquid medium conveying screw pump is characterized in that the eccentric screw and the screw lining are respectively of a conical structure along the axial section; adjustable supporting structures are arranged at two ends of the screw lining. The adjustable liquid medium conveying screw pump is simple in structure and convenient to operate; the working efficiency of the screw pump can be changed according to an actual requirement, and the service lives of the screw lining and the universal shaft component are also prolonged.
Description
Technical field
The utility model relates to a kind of screw pump, and especially a kind of adjustable screw pump that is applicable to liquid medium conveying, belongs to rotator type displacement pump technical field.
Background technique
Screw pump is a kind of novel conveying liquid machine, and it has simple in structure, safe and reliable, the advantages such as easy maintenance, fluid continuous uniform, pressure stability.As shown in Figure 1, wherein the main working parts of helical rotor pump is eccentric screw 3(rotor) and internal surface be the screw rod lining 2(stator of bifilar helix face), its working principle is in the time that electric machine assembly 6 drives pump shaft to rotate, eccentric screw 3 rotates around the axis of self on the one hand, it rolls along screw rod lining 2 internal surfaces again on the other hand, forms the sealed chamber 7 of pump.Eccentric screw 3 often circles, liquid in sealed chamber 7 is pushed ahead a pitch, and along with the continuous rotation of eccentric screw 3, liquid presses to another Seal cage in the spiral mode of advancing from a Seal cage, finally extrude the pump housing, thereby realize the conveying of liquid medium.Helical rotor pump is mainly used in the industrial fields such as environmental protection, boats and ships, oil, medicine and papermaking.
Because the existing helical rotor pump of carrying for liquid medium is generally zero draft screw pump, the mounting point of its screw rod lining 2 is unadjustable, can not change according to the actual requirements pump efficiency on the one hand, on the other hand after pump housing continuous operation, because of rotor (eccentric screw 3) and stator (screw rod lining 2) relative movement, make screw rod lining 2 and eccentric screw 3 contact position serious wear, shorten working life; The cardan shaft assembly that existing flowing medium carries helical rotor pump to connect pump shaft and rotor in addition adopts cross-axle universal shaft coupling 1, easily produces fatigue fracture phenomenon.
Model utility content
The purpose of this utility model is the drawback for prior art, provide a kind of simple in structure, easy to operate, the adjustable liquid medium transport screw pump that can adjust according to the actual requirements pump housing working efficiency, can extend again screw rod lining and cardan shaft assembly working life.
Problem described in the utility model realizes with following technical proposals:
A kind of adjustable liquid medium transport screw pump, it is made up of electric machine assembly, cardan shaft assembly, the pump housing and base, the described pump housing comprises eccentric screw and the screw rod lining of mutual coupling, described eccentric screw is connected with the secondary part of cardan shaft assembly, the active part of described cardan shaft assembly is connected with the output shaft of electric machine assembly, its specialization is: described eccentric screw and screw rod lining are cone structure in cross section vertically, is provided with adjustable support structure at screw rod lining two ends.
Above-mentioned adjustable liquid medium transport screw pump, described adjustable support structure comprises screw rod lining supporting base and one group of adjusting screw rod, and described screw rod lining supporting base is fixed on the two ends of screw rod lining, and they are by adjusting screw rod and base assembling.
Above-mentioned adjustable liquid medium transport screw pump, described adjusting screw rod quantity is no less than four, and they are distributed on the outer periphery position of the pump housing.
Above-mentioned adjustable liquid medium transport screw pump, described cardan shaft assembly adopts ball formula coupling, and the surface of contact of its ball formula shaft coupling body and coupling seat is by nitridation process processing.
The utility model can pass through the adjusting to screw rod lining horizontal position, adjust screw rod lining and coordinate the sealed chamber's volume forming with eccentric screw, reach the object that regulates pump efficiency, thereby meet the demand of carrying different big or small solid particle fluids of carrying, expand the Applicable scope of screw pump, make screw rod lining and the eccentric screw contact position in transmission process change, the impact of having avoided contact position to wear and tear on the screw rod lining life-span for a long time simultaneously; Cardan shaft assembly of the present utility model has adopted ball formula coupling, solve the problem of existing screw pump cross-axle universal shaft coupling fatigability fracture, due to the shaft coupling body of ball formula coupling and the area of contact of coupling seat larger, eliminate the relative concentration phenomenon of stress, by the nitriding processing to ball formula shaft coupling body and coupling seat surface of contact, its mechanical property is improved greatly.In a word, the utility model can not only be adjusted pump housing working efficiency according to the actual requirements, but also can extend screw rod lining and cardan shaft assembly working life, through probationary certificate: adopt after the utility model structure, service life of screw pump has extended 3～4 times.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is that existing flowing medium is carried helical rotor pump structural representation;
Fig. 2 is cross-sectional view of the present utility model;
Fig. 3 is A-A cross-sectional view in Fig. 2;
Fig. 4 is that the utility model is adjusted the cross-sectional view after (being moved to the left) in screw rod lining position;
Fig. 5 is I place structure enlarged view in Fig. 4.
In figure, each list of reference numerals is: 1, cardan shaft assembly, 2, screw rod lining, 3, eccentric screw, 4, adjusting screw rod, 5, base, 6, electric machine assembly, 7, sealed chamber, 8, screw rod lining supporting base.
Embodiment
Referring to Fig. 2, the utility model is by electric machine assembly 6, cardan shaft assembly 1, the pump housing and base 5 form, the described pump housing comprises eccentric screw 3 and the screw rod lining 2 of mutual coupling, described eccentric screw 3 is connected with the secondary part of cardan shaft assembly 1, the active part of described cardan shaft assembly 1 is connected with the output shaft of electric machine assembly 6, its specialization is: described eccentric screw 3 and screw rod lining 2 are cone structure in cross section vertically, be provided with adjustable support structure at screw rod lining 2 two ends, described adjustable support structure comprises screw rod lining supporting base 8 and one group of adjusting screw rod 4, described screw rod lining supporting base 8 is fixed on the two ends of screw rod lining 2, they assemble by adjusting screw rod 4 and base 5.
Referring to Fig. 3, adjusting screw rod 4 quantity of the present utility model are no less than four, and they are distributed on the outer periphery position of the pump housing.
Referring to Fig. 2, cardan shaft assembly 1 of the present utility model adopts ball formula coupling, and the surface of contact of its ball formula shaft coupling body and coupling seat is by nitridation process processing.
Referring to Fig. 2, Fig. 4, Fig. 5, the utility model can pass through the adjusting to screw rod lining 2 horizontal positions, adjust screw rod lining 2 coordinates the sealed chamber 7 forming volume with eccentric screw 3, reach the object that regulates pump efficiency, thereby meet the demand of carrying different big or small solid particle fluids of carrying, expand the Applicable scope of screw pump, also make screw rod lining 2 and the contact position of eccentric screw 3 in transmission process change, the impact of having avoided contact position to wear and tear on the screw rod lining life-span for a long time simultaneously.What Fig. 4 showed is the sectional structure chart of the utility model after screw rod lining 2 is moved to the left, can be found out by this embodiment, by the cooperation of screw rod lining supporting base 8 and adjusting screw rod 4, can adjust screw rod lining 2 horizontal positions, make eccentric screw 3 and screw rod lining 2 coordinate sealed chamber's 7 volumes that form to change, therefore change the fluid flow of being carried by the pump housing in the unit time, thereby changed the working efficiency of this screw pump; Screw rod lining 2 is f point region with the contact position of eccentric screw 3 in transmission process by e point area change simultaneously, screw rod lining 2 rapid failures of having avoided e point region to cause because of long term wear.
Claims (4)
1. an adjustable liquid medium transport screw pump, it is by electric machine assembly (6), cardan shaft assembly (1), the pump housing and base (5) composition, the described pump housing comprises eccentric screw (3) and the screw rod lining (2) of mutual coupling, described eccentric screw (3) is connected with the secondary part of cardan shaft assembly (1), the active part of described cardan shaft assembly (1) is connected with the output shaft of electric machine assembly (6), it is characterized in that, described eccentric screw (3) and screw rod lining (2) are cone structure in cross section vertically, be provided with adjustable support structure at screw rod lining (2) two ends.
2. a kind of adjustable liquid medium transport screw pump according to claim 1, it is characterized in that, described adjustable support structure comprises screw rod lining supporting base (8) and one group of adjusting screw rod (4), described screw rod lining supporting base (8) is fixed on the two ends of screw rod lining (2), and they are by adjusting screw rod (4) and base (5) assembling.
3. a kind of adjustable liquid medium transport screw pump according to claim 2, is characterized in that, described adjusting screw rod (4) quantity is no less than four, and they are distributed on the outer periphery position of the pump housing.
4. according to a kind of adjustable liquid medium transport screw pump described in claim 1 or 2 or 3, it is characterized in that, described cardan shaft assembly (1) adopts ball formula coupling, and the surface of contact of its ball formula shaft coupling body and coupling seat is by nitridation process processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420095107.4U CN203783889U (en) | 2014-03-04 | 2014-03-04 | Adjustable liquid medium conveying screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420095107.4U CN203783889U (en) | 2014-03-04 | 2014-03-04 | Adjustable liquid medium conveying screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203783889U true CN203783889U (en) | 2014-08-20 |
Family
ID=51320082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420095107.4U Expired - Fee Related CN203783889U (en) | 2014-03-04 | 2014-03-04 | Adjustable liquid medium conveying screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203783889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107002668A (en) * | 2014-12-04 | 2017-08-01 | 耐驰泵及系统有限公司 | Length compensation device |
-
2014
- 2014-03-04 CN CN201420095107.4U patent/CN203783889U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107002668A (en) * | 2014-12-04 | 2017-08-01 | 耐驰泵及系统有限公司 | Length compensation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103967733B (en) | A kind of delicate metering ceramic plunger topping-up pump | |
| CN204226258U (en) | Sliding bearing and multistage centrifugal pump | |
| CN103967731A (en) | End cam driving type axial plunger pump carrying out oil distribution by adopting flow distribution ring | |
| CN203335420U (en) | Small-flow high-lift magnetic transmission peripheral pump | |
| CN203783889U (en) | Adjustable liquid medium conveying screw pump | |
| CN206495780U (en) | High temperature aluminium liquid delivery pump | |
| CN103982387A (en) | End cam driving type axial plunger pump adopting rotating window oil distribution | |
| CN204738961U (en) | Variable type gear pump | |
| CN102777388A (en) | All-metal screw oil well pump for deep well | |
| CN103899506A (en) | Cylinder block and shell integrated axial plunger pump driven by end cam | |
| CN106337806A (en) | High-temperature molten aluminum conveying pump | |
| CN204663793U (en) | A kind of horizontal pump | |
| CN201318283Y (en) | Single-screw pump | |
| CN204152783U (en) | A kind of bearing external double-sealing high viscosity stainless gear pump | |
| CN210317872U (en) | Rigid coupling for centrifugal pump and centrifugal pump | |
| CN101892980B (en) | Crank type crankshaft drive single screw pump | |
| CN204371574U (en) | A kind of high speed axial piston pump | |
| CN206329487U (en) | The conveyor screw of high temperature aluminium liquid delivery pump | |
| CN206280242U (en) | A kind of high-accuracy quantitative fluid supercharging vane type electric transmission assembly apparatus | |
| CN101539129B (en) | Hydraulic axial piston pump or motor | |
| CN205154945U (en) | Universal joint connector anticreep device | |
| CN202991466U (en) | Twin-screw glue pump | |
| CN203230581U (en) | Vertical type single-screw pump | |
| CN205036637U (en) | Retractable drain pump | |
| CN203594598U (en) | Vertical type screw pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |