CN202370825U - Cylindrical spring compensating four-wire meshed rotor pump - Google Patents
Cylindrical spring compensating four-wire meshed rotor pump Download PDFInfo
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- CN202370825U CN202370825U CN201120483865XU CN201120483865U CN202370825U CN 202370825 U CN202370825 U CN 202370825U CN 201120483865X U CN201120483865X U CN 201120483865XU CN 201120483865 U CN201120483865 U CN 201120483865U CN 202370825 U CN202370825 U CN 202370825U
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- eccentric
- rotor
- half hole
- compensating disc
- pump
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Abstract
The utility model relates to a cylindrical spring compensating four-wire meshed rotor pump. The pump comprises a pump body, a rotor shaft arranged in a central through hole of the pump body in a traversing mode, and a slave rotor arranged in an eccentric half hole of the pump body in a sliding mode, wherein an eccentric end cover is fixed on the outer end face of the eccentric half hole in a closed mode through at least three screws; a compensating disc between the eccentric end cover and the outer end face of the slave rotor is arranged in the eccentric half hole in a sliding mode; four contact lines are synchronously formed between four equally-divided arc surface working sections of the rotor shaft and five equally-divided inner arc working surfaces of the slave motor, and four dynamic spaces A, B, C and D are formed by combining the bottom surface of the eccentric half hole and the front plane of the compensating disc; four axially extending sealing strips still can be synchronously formed even if the pump is used for a long time and uniformly worn, and the four dynamic spaces are effectively sealed radially all the time; and cylindrical springs are arranged between the back side of the compensating disc and the eccentric end cover and push the compensating disc to compensate the end face wear of the four dynamic spaces A, B, C and D.
Description
Technical field
The utility model belongs to mechanical engineering field, and International Classification of Patents is the F04D non-varactor pump, relate to a kind of with mechanical energy convert into fluid pressure can the transformation of energy displacement pump, be meant that especially a kind of cylindrical spring compensates four lines engagements rotor pump.
Background technique
Known displacement pump main structure form has: plunger pump, screw pump, Roots pump and sliding vane pump.Displacement pump has the high advantage of efficient, but all exists its efficient of long-time running wearing and tearing back obviously to reduce, and causes the main cause of above-mentioned defective to be that movable isolation of end face between hyperbaric chamber and the low pressure chamber fail to play effective sealing.The undersized easy heat expansion of end face fit tolerance is stuck firmly; The end face fit tolerance is oversize then fails to play effective sealing; And long-time running wearing and tearing back sealing effect is poorer, and the production line of having to stop is changed pumping unit, causes very big direct waste and indirect loss.
Plunger pump is fit to high pressure but pulse is big, does not possess self-compensating after the wearing and tearing; Screw pump be fit to high viscosity but on unit volume manufacture cost high, do not possess self-compensating after the wearing and tearing yet; Roots pump is fit to liquids and gases but radially there is the gap in it, and radially with behind the end wear does not possess self-compensating; Sliding vane pump can be accomplished self-compensating after the gauge wear, but does not still possess self-compensating behind the end wear, and the slide plate stuck phenomenon happens occasionally.So far fail to see a kind of effective displacement pump both at home and abroad, can possess the structure function of end wear sealing compensation and gauge wear sealing compensation simultaneously.(its English full name of " SCI " U.S. " science citation index " is that ta is tion Index for Science Ci to the U.S.'s three large-engineerings science and technology magazine, is called for short SCI; " EI " U.S. its English full name of EI is the Engineering Index, is called for short EI; Its English full name of " IS is tP " U.S. " scientific and technical conference record index " is that Index is technical Proceedings for to Scien for tific &, and abbreviation IS is tP.) take in global engineering science and technology paper, also not seen has a kind of displacement pump that can possess end wear sealing compensation and gauge wear sealing compensation rotator type simultaneously.
Summary of the invention
The purpose of the utility model provides a kind of cylindrical spring and compensates four lines engagement rotor pump; The technology that possesses end wear sealing compensation and gauge wear sealing compensation simultaneously; To realize being in good movable isolating seal state for a long time between hyperbaric chamber and the low pressure chamber; Remedy the deficiency of existing technology, fill up the technological gap that displacement pump possesses end wear sealing compensation and gauge wear sealing compensation simultaneously.
To achieve these goals; The utility model provides following technological scheme: a kind of cylindrical spring compensates four lines engagement rotor pump; Comprise the pump housing and pass through in the central through bore that is installed in the pump housing rotor shaft be slidingly mounted in off-centre half hole of the pump housing from rotor; Eccentric end cap is by on the airtight exterior edge face that is fixed on eccentric half hole of at least three screw, eccentric end cap and from there being compensating disc to be slidingly mounted in eccentric half hole between the exterior edge face of rotor; The central axis O of the central through bore on the said pump housing
2Eccentric axis O with off-centre half hole
1Between have eccentric distance t, a crescent shape suction inlet UNICOM on the bottom surface, eccentric half hole import, another crescent shape row mouthful UNICOM outlet; Said rotor shaft comprises four five equilibrium cambered surface active sections and do not have the keyway shaft part and the shaft with keyway section, and the inner end of four five equilibrium cambered surface active sections is pasting bottom surface, eccentric half hole, and the exterior edge face of four five equilibrium cambered surface active sections is being pasted by the horizontal frontal plane of compensating disc; Described have the both ends of the surface of five five equilibrium inner arc working surfaces also pasting the horizontal frontal plane of eccentric bottom surface, half hole and compensating disc respectively from rotor, it is characterized in that: between the back side of compensating disc and the eccentric end cap helical spring is arranged.
Structural principle:
The central axis O of rotor shaft
2With eccentric axis O from rotor 2
1Between have eccentric distance t, four five equilibrium cambered surface active sections of rotor shaft and from four Line of contact of synchronized generation between five five equilibrium inner arc working surfaces of rotor in conjunction with the horizontal frontal plane of eccentric bottom surface, half hole and compensating disc, constitute A, B, C and four dynamic spaces of D.Even can guarantee that still four axially extended sealing strips form synchronously after using uniform wear for a long time, guarantee the radially effectively sealing all the time of four dynamic spaces;
The back side of compensating disc has positioning hole and locating stud to be slidingly matched, and locating stud is fixedly connected with eccentric end cap, thereby compensating disc can only be made axial slip with respect to eccentric end cap.Helical spring promotes compensating disc and plays compensating action for the end wear of A, B, C and four dynamic spaces of D.
Possess in the time of end wear sealing compensation and gauge wear sealing compensation, realize being in good movable isolating seal state for a long time between hyperbaric chamber and the low pressure chamber.
The beneficial effect of the utility model is: rotor shaft and from four axially extended sealing strips of rotor synchronized generation; Support rebounding force by means of helical spring; Horizontal frontal plane one side of compensating disc is close to the exterior edge face of two rotors all the time, forces the inner end of two rotors also to be close to bottom surface, eccentric half hole.Constitute A, B, C and four dynamic spaces of D and possessed end wear sealing compensation and gauge wear sealing compensation simultaneously, realize being in good movable isolating seal state for a long time between hyperbaric chamber and the low pressure chamber.
Description of drawings
Fig. 1 is the sectional drawing of the utility model integral body through axis;
Fig. 2 is the sectional drawing in W-W cross section among Fig. 1;
Fig. 3 is an inner rotor shaft 1 and the relative position relation of four dynamic spaces of synchronized generation that are in operation from rotor 2;
Fig. 4 is with respect to Fig. 3, and rotor shaft 1 is around central axis O
2Be rotated counterclockwise 50 the degree, from rotor 2 around eccentric axis O
1Be rotated counterclockwise 40 the degree after relative position relation;
Fig. 5 is with respect to Fig. 3, and rotor shaft 1 is around central axis O
2Be rotated counterclockwise 100 the degree, from rotor 2 around eccentric axis O
1Be rotated counterclockwise 80 the degree after relative position relation;
Fig. 6 is with respect to Fig. 3, and rotor shaft 1 is around central axis O
2Be rotated counterclockwise 150 the degree, from rotor 2 around eccentric axis O
1Be rotated counterclockwise 120 the degree after relative position relation;
Fig. 7 is with respect to Fig. 3, and rotor shaft 1 is around central axis O
2Be rotated counterclockwise 200 the degree, from rotor 2 around eccentric axis O
1Be rotated counterclockwise 160 the degree after relative position relation;
Fig. 8 is with respect to Fig. 3, and rotor shaft 1 is around central axis O
2Be rotated counterclockwise 250 the degree, from rotor 2 around eccentric axis O
1Be rotated counterclockwise 200 the degree after relative position relation;
Fig. 9 is with respect to Fig. 3, and rotor shaft 1 is around central axis O
2Be rotated counterclockwise 300 the degree, from rotor 2 around eccentric axis O
1Be rotated counterclockwise 240 the degree after relative position relation;
Figure 10 is with respect to Fig. 3, and rotor shaft 1 is around central axis O
2Be rotated counterclockwise 350 the degree, from rotor 2 around eccentric axis O
1Be rotated counterclockwise 280 the degree after relative position relation.
Figure 11 is the stereogram of rotor shaft 1.
Figure 12 is a rotor shaft 1 and from the camberline construction drawing of rotor 2.
Embodiment
In conjunction with the accompanying drawings and embodiments, further the structure and the operation principle of the utility model elaborated.
A kind of cylindrical spring compensates four lines engagement rotor pump; Comprise the pump housing 4 and pass through in rotor shaft 1 and the off-centre that is slidingly mounted on the pump housing 4 half hole 42 in the central through bore 41 that is installed in the pump housing 4 from rotor 2; Eccentric end cap 5 is by on the airtight exterior edge face that is fixed on eccentric half hole 42 of at least three screw 8, eccentric end cap 5 and from there being compensating disc 6 to be slidingly mounted in eccentric half hole 42 between the exterior edge face of rotor 2; The central axis O of the central through bore 41 on the said pump housing 4
2Eccentric axis O with off-centre half hole 42
1Between have eccentric distance t, crescent shape suction inlet 47 UNICOMs on the bottom surface, eccentric half hole 40 import 46, another crescent shape row mouthful 48 UNICOMs outlet 49; Said rotor shaft 1 comprises four five equilibrium cambered surface active sections 13 and does not have keyway shaft part 11 and shaft with keyway section 12; The inner end of four five equilibrium cambered surface active sections 13 is pasting the exterior edge face of bottom surface, eccentric half hole 40, four five equilibrium cambered surfaces active section 13 and is being pasted by the horizontal frontal plane of compensating disc 6; Described have the both ends of the surface of five five equilibrium inner arc working surfaces also pasting the horizontal frontal plane of bottom surface, eccentric half hole 40 and compensating disc 6 respectively from rotor 2, it is characterized in that: between the back side of compensating disc 6 and the eccentric end cap 5 helical spring 9 is arranged.
Installation steps and working procedure:
In Fig. 1 and Fig. 2, earlier with the shaft with keyway section 12 of rotor shaft 1 from bottom surface, off-centre half hole 40 1 sides, pass central through bore 41 and be slidingly matched with it, the inner end of four five equilibrium cambered surface active sections 13 is pasting bottom surface, eccentric half hole 40.To be placed in eccentric half hole 42 from rotor 2 and be slidingly matched, also paste bottom surface, eccentric half hole 40, make the central axis O of rotor shaft 1 from the inner end of rotor 2
2With eccentric axis O from rotor 2
1Between have eccentric distance t.From no keyway shaft part 11 1 ends, load onto compensating disc 6 successively again; Locating stud 7 and helical spring 9 are fixed on the back side of eccentric end cap 5; At last with eccentric end cap 5 shimmings 54; With the outer circular edge of four screws 8, on the outside end face in airtight off-centre half hole 42 that is fixed on the pump housing 4 along eccentric end cap 5.
Four five equilibrium cambered surface active sections 13 of rotor shaft 1 and from four point of contact of synchronized generation between five five equilibrium inner arc working surfaces of rotor 2; Cross point of contact and form four axially extended sealing strips; Horizontal frontal plane in conjunction with bottom surface, eccentric half hole 40 and compensating disc 6 constitutes A, B, C and four dynamic spaces of D.Even can guarantee that still four axially extended sealing strips form synchronously after using uniform wear for a long time, guarantee the radially effectively sealing all the time of four dynamic spaces;
The central axis O of the band on the compensating disc 6 " O " type ring recess through hole 61
2Eccentric axis O with band " O " type ring recess cylindrical 62
1Between have eccentric distance t, can hold at least three helical springs 9 branches such as grade in the compensating disc tool back plane of compensating disc 6 69 and arrange, the eccentric positioning hole 67 and the locating stud 7 of compensating disc 6 are slidingly matched.The horizontal frontal plane of compensating disc 6 inwardly, band " O " type ring recess through hole 61 is inserted in from no keyway shaft part 11 1 ends of rotor shaft 1 and is slidingly matched, band " O " type ring recess cylindrical 62 is slidingly matched with eccentric half hole 42.
Locating stud 7 is fastened on the eccentric end cap 5 inboard faces; The inner ring of at least three helical springs 9 is enclosed within on three inboard boss 59 of eccentric end cap 5 at least, and band " O " the type ring recess through hole 51 on the eccentric end cap 5 is inserted in from no keyway shaft part 11 1 ends of rotor shaft 1 and is slidingly matched.At least three screw 8 along the outer circular edge of eccentric end cap 5, on the outside end face with airtight off-centre half hole 42 that is fixed on the pump housing 4 of eccentric end cap 5 shimmings 54.
The back side of compensating disc 6 has positioning hole 67 and locating stud 7 to be slidingly matched, and locating stud 7 is fixedly connected with eccentric end cap 5, thereby compensating disc 6 can only be made axial slip with respect to eccentric end cap 5.Helical spring 9 promotes compensating disc 6 and plays compensating action for the end wear of A, B, C and four dynamic spaces of D.
Possess in the time of end wear sealing compensation and gauge wear sealing compensation, realize being in good movable isolating seal state for a long time between hyperbaric chamber and the low pressure chamber.
" O " type circle in all " O " type ring recess plays the motive sealing effect at position of living in.
In Fig. 3 to Figure 10; During work, external force drives rotor shaft 1 rotation through shaft with keyway section 12, stirs then from rotor 2 rotations; From both rotating center deviation distances of rotor 2 and rotor shaft 1 is t; Four five equilibrium cambered surface active sections 13 of rotor shaft 1 and from four axially extended sealing strips of synchronized generation between five five equilibrium inner arc working surfaces of rotor 2, the horizontal frontal plane in conjunction with bottom surface, eccentric half hole 40 and compensating disc 6 constitutes A, B, C and four dynamic spaces of D.During rotation, A, B, C and four dynamic spaces of D along with rotation will become a big side gradually and be crescent shape suction inlet 47, lead to import 46; One side that will diminish gradually along with rotation of A, B, C and four dynamic spaces of D is a crescent shape row mouth 48, leads to outlet 49.Rotor shaft 1 continuously rotation order about A, B, C and four dynamic spaces of D go round and begin again accomplish inhale, row's work.
Figure 11 is the stereogram of rotor shaft 1.
Setting-out X of elder generation and vertical with it line Y1 and line Y2, intersection point is respectively O
1, O
2, O
1With O
2Be 6mm apart for eccentric distance t. gets eccentric distance t here;
With O
1Be the center of circle, R1 is that radius is made basic circle R1.Here getting the R1 radius is 60mm;
An intersection point with basic circle R1 and line X is the center of circle, and R2 is that radius is made arc section R2, again with O
1Be the center of circle, with arc section R2 around O
1Five five equilibriums annular display.Here getting the R2 radius is 33mm;
The distance that is extended to R3 with the intersection point of arc section R2 and line X is the center of circle, is that the intersection point that radius is crossed arc section R2 and line X is made arc section R3 with R3, again with O
2Be the center of circle, with arc section R3 around O
2Quartering annular display.Here getting the R3 radius is 50mm;
Choose two arc section R3 and an arc section R2 respectively, the tangent arc section R4 that does of four lines gets the R4 radius here and is approximately 4.8mm;
With R5 is that radius is made two adjacent arc section R2 of arc section R5 connection respectively, and the R5 radius is 40mm here.
Article four, arc section R4 alternately with four point of contact of four arc section R2 synchronized generation, cross point of contact and form four axially extended sealing strips, constitute A, B, C and four dynamic spaces of D.Even after using uniform wear for a long time, four point of contact of synchronized generation form four axially extended sealing strips can guarantee that still four axially extended sealing strips form synchronously, and that guarantees four dynamic spaces radially is in effective sealing all the time.
The both ends of the surface width of four five equilibrium cambered surface active sections 13 of rotor shaft 1 and size equal uniform from the both ends of the surface width of rotor 2; Here getting the both ends of the surface width all is 50mm; The inner end of two rotors is all pasting bottom surface, eccentric half hole 40, and the horizontal frontal plane of compensating disc 6 is pasting the exterior edge face of two rotors simultaneously.The support rebounding force that is supported on the inboard boss 59 of eccentric end cap 5 by means of helical spring 9 and is asking the back side of compensating disc 6 to produce; The horizontal frontal plane of compensating disc 6 is close to the exterior edge face of two rotors all the time; Then force the inner end of two rotors also to be close to bottom surface, eccentric half hole 40, guarantee that the end face slip of four dynamic spaces is in effective sealing all the time.
During work, external force drives rotor shaft 1 rotation through shaft with keyway section 12, stirs then from rotor 2 rotations.From both rotating center deviation distances of rotor 2 and rotor shaft 1 is t; Four five equilibrium cambered surface active sections 13 of rotor shaft 1 and from four axially extended sealing strips of synchronized generation between five five equilibrium inner arc working surfaces of rotor 2; Horizontal frontal plane in conjunction with bottom surface, eccentric half hole 40 and compensating disc 6 constitutes A, B, C and four dynamic spaces of D.During rotation, A, B, C and four dynamic spaces of D along with rotation will become a big side gradually and be crescent shape suction inlet 47, lead to import 46; One side that will diminish gradually along with rotation of A, B, C and four dynamic spaces of D is a crescent shape row mouth 48, leads to outlet 49.Rotor shaft 1 continuously rotation order about A, B, C and four dynamic spaces of D go round and begin again accomplish inhale, row's work.
Claims (1)
1. a cylindrical spring compensates four lines engagement rotor pump; Comprise the pump housing (4) and pass through the rotor shaft (1) in the central through bore (41) that is installed in the pump housing (4) and be slidingly mounted in off-centre half hole (42) of the pump housing (4) from rotor (2); Eccentric end cap (5) is by on the airtight exterior edge face that is fixed on eccentric half hole (42) of at least three screw (8), eccentric end cap (5) and from there being compensating disc (6) to be slidingly mounted in eccentric half hole (42) between the exterior edge face of rotor (2); Has eccentric distance t between the central axis O2 of the central through bore (41) on the said pump housing (4) and the eccentric axis O1 in eccentric half hole (42); Crescent shape suction inlet (47) UNICOM on the eccentric bottom surface, half hole (40) import (46), and another crescent shape row mouthful (48) UNICOM outlet (49); Said rotor shaft (1) comprises four five equilibrium cambered surface active sections (13) and does not have keyway shaft part (11) and shaft with keyway section (12); The inner end of four five equilibrium cambered surface active sections (13) is pasting bottom surface, eccentric half hole (40), and the exterior edge face of four five equilibrium cambered surface active sections (13) is being pasted by the horizontal frontal plane of compensating disc (6); Described have the both ends of the surface of five five equilibrium inner arc working surfaces also pasting the horizontal frontal plane of bottom surface, eccentric half hole (40) and compensating disc (6) respectively from rotor (2), it is characterized in that: between the back side of compensating disc (6) and the eccentric end cap (5) helical spring (9) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120483865XU CN202370825U (en) | 2011-11-18 | 2011-11-18 | Cylindrical spring compensating four-wire meshed rotor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120483865XU CN202370825U (en) | 2011-11-18 | 2011-11-18 | Cylindrical spring compensating four-wire meshed rotor pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202370825U true CN202370825U (en) | 2012-08-08 |
Family
ID=46594530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120483865XU Expired - Fee Related CN202370825U (en) | 2011-11-18 | 2011-11-18 | Cylindrical spring compensating four-wire meshed rotor pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202370825U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511247A (en) * | 2013-09-23 | 2014-01-15 | 安徽工业大学 | Internal gearing rotor pump with rotary oil distribution disc |
-
2011
- 2011-11-18 CN CN201120483865XU patent/CN202370825U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511247A (en) * | 2013-09-23 | 2014-01-15 | 安徽工业大学 | Internal gearing rotor pump with rotary oil distribution disc |
| CN103511247B (en) * | 2013-09-23 | 2015-12-02 | 安徽工业大学 | A kind of internally meshed rotor pump with rotating oil distribution casing |
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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: 20120808 Termination date: 20121118 |