CN202284536U - Four-space internal-pressure balance sealing rotor pump - Google Patents
Four-space internal-pressure balance sealing rotor pump Download PDFInfo
- Publication number
- CN202284536U CN202284536U CN2011203883499U CN201120388349U CN202284536U CN 202284536 U CN202284536 U CN 202284536U CN 2011203883499 U CN2011203883499 U CN 2011203883499U CN 201120388349 U CN201120388349 U CN 201120388349U CN 202284536 U CN202284536 U CN 202284536U
- Authority
- CN
- China
- Prior art keywords
- eccentric
- rotor
- compensating disc
- rotor shaft
- equilibrium
- 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
Images
Abstract
A four-space internal-pressure balance sealing rotor pump comprises a pump body, a rotor shaft arranged in a central through hole of the pump body and a secondary rotor installed in an eccentric half hole of the pump body. The eccentric distance t is formed between the central axis O2 of the rotor shaft and the eccentric axis O1 of the driven rotor, four equal-division arc face working sections of the rotor shaft are meshed with five equal-division arc faces in rotation, four contact points are synchronously formed, the excessive-connection contact points form four axial extending sealing belts, and the bottom surface and the front flat surface of a compensation plate are combined to form four working spaces of A, B, C and D. An internal pressure backflow channel is used for leading the back force of the compensation plate to be larger than the front force of the compensation plate, one side of the front of the compensation tightly abuts against working outer end faces of two rotors, then the working inner end faces of the two rotors are enabled to abut against the bottom plane, and good end face abrasion sealing compensation between a high pressure cavity and a low pressure cavity for a long time is guaranteed.
Description
Technical field
The utility model belongs to mechanical engineering field, relate to a kind of with mechanical energy convert into fluid pressure can the transformation of energy displacement pump, be meant equilibrium canned-rotor pump in a kind of four spaces especially.
Background technique
Known displacement pump main structure form has: plunger pump, screw pump, Roots pump and sliding vane pump.Have the high advantage of efficient as displacement pump, but all exist its efficient of long-time running wearing and tearing back obviously to reduce, cause the main cause of above-mentioned defective to be that the end face dynamic isolation between hyperbaric chamber and the low pressure chamber fails 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.
Summary of the invention
The purpose of the utility model provides equilibrium canned-rotor pump in a kind of four spaces; The technology that possesses end wear sealing compensation and gauge wear sealing compensation simultaneously; To realize being in good dynamic isolation sealing 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:
Equilibrium canned-rotor pump in a kind of four spaces; Comprise the pump housing and be installed in rotor shaft and off-centre half hole that is installed in the pump housing on the central through bore of the pump housing from rotor; The work inner end of two rotors is pasting the bottom plane in eccentric half hole; The horizontal frontal plane of compensating disc is also being pasted in the work exterior edge face of two rotors, and has locating stud restriction compensating disc that the eccentric end of being fixed on covers to do to endwisely slip, and eccentric end cap comes the airtight exterior edge face, working area that is fixed on eccentric half hole with at least three screw; Be with " O " type ring recess in the central through bore on the pump housing, the central axis O of central through bore
2Eccentric axis O with off-centre half hole
1Between have eccentric distance t, a crescent shape suction inlet UNICOM on the bottom plane import, another crescent shape row mouthful UNICOM on the bottom plane outlet, outlet have a bypass in push back runner and lead to the back side of compensating disc and the space between the eccentric end cap; 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 work inner end of four five equilibrium cambered surface active sections is pasting the bottom plane, and the work exterior edge face of four five equilibrium cambered surface active sections is being pasted by the horizontal frontal plane of compensating disc; Comprise complete section of five five equilibrium cambered surfaces from rotor, the size equal uniform of the width of full section both ends of the surface and the both ends of the surface width of four five equilibrium cambered surface active sections; The central axis O of the band on the compensating disc " O " type ring recess through hole
2Eccentric axis O with band " O " type ring recess cylindrical
1Between have eccentric distance t, the eccentric positioning hole and the locating stud of compensating disc are slidingly matched; The central axis O of rotor shaft
2With eccentric axis O from rotor
1Between have eccentric distance t; Four five equilibrium cambered surface active sections of rotor shaft and between five five equilibrium cambered surfaces of rotor, rotation, being meshing with each other, four point of contact of synchronized generation are crossed point of contact and are formed four axially extended sealing strips; Horizontal frontal plane in conjunction with bottom plane and compensating disc; Constitute A, B, C and four working spaces of D, the space between the back side of described compensating disc and the eccentric end cap with in push back runner and communicate, in push back runner the other end towards exporting.
The beneficial effect of the utility model is: make that by means of the interior runner that pushes back the back side of compensating disc is stressed stressed greater than the front; Horizontal frontal plane one side of compensating disc is close to the work exterior edge face of two rotors all the time; Then force the work inner end of two rotors also to be close to the bottom plane, guarantee to be in for a long time between hyperbaric chamber and the low pressure chamber good end wear sealing compensation; Rotor shaft and from four axially extended sealing strips of rotor synchronized generation; Constitute A, B, C and four working spaces of D and possessed the gauge wear sealing compensation simultaneously; End wear sealing compensation and gauge wear sealing compensation possess simultaneously, realize being in good dynamic isolation sealing 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 the relative position relation of inner rotor shaft 1 with respect to four working spaces of synchronized generation that are in operation from rotor 2;
Fig. 4 is with respect to Fig. 3, rotor shaft 1 be rotated counterclockwise 50 the degree, from rotor 2 be rotated counterclockwise 40 the degree after relative position relation;
Fig. 5 is with respect to Fig. 3, rotor shaft 1 be rotated counterclockwise 100 the degree, from rotor 2 be rotated counterclockwise 80 the degree after relative position relation;
Fig. 6 is with respect to Fig. 3, rotor shaft 1 be rotated counterclockwise 150 the degree, from rotor 2 be rotated counterclockwise 120 the degree after relative position relation;
Fig. 7 is with respect to Fig. 3, rotor shaft 1 be rotated counterclockwise 200 the degree, from rotor 2 be rotated counterclockwise 160 the degree after relative position relation;
Fig. 8 is with respect to Fig. 3, rotor shaft 1 be rotated counterclockwise 250 the degree, from rotor 2 be rotated counterclockwise 200 the degree after relative position relation;
Fig. 9 is with respect to Fig. 3, rotor shaft 1 be rotated counterclockwise 300 the degree, from rotor 2 be rotated counterclockwise 240 the degree after relative position relation;
Figure 10 is with respect to Fig. 3, rotor shaft 1 be rotated counterclockwise 350 the degree, from rotor 2 be rotated counterclockwise 280 the degree after relative position relation.
Figure 11 is the exterior perspective view 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.
Equilibrium canned-rotor pump in a kind of four spaces; Comprise the pump housing 4 and be installed in rotor shaft 1 and the off-centre that is installed in the pump housing 4 half hole 42 on the central through bore 41 of the pump housing 4 from rotor 2; The work inner end of two rotors is pasting the bottom plane 40 in eccentric half hole 42; The horizontal frontal plane of compensating disc 6 is also being pasted in the work exterior edge face of two rotors; And have the locating stud that is fixed on the eccentric end cap 57 restriction compensating discs 6 to do to endwisely slip the screw 8 airtight exterior edge faces, working area that are fixed on eccentric half hole 42 that eccentric end cap 5 usefulness are at least three; Central through bore on the pump housing 4 is with " O " type ring recess, the central axis O of central through bore 41 for 41 li
2Eccentric axis O with off-centre half hole 42
1Between have eccentric distance t; Crescent shape suction inlet 47 UNICOMs on the bottom plane 40 import 46; Another crescent shape row mouthful 48 UNICOMs on the bottom plane 40 outlet 49, outlet 49 have a bypass in push back runner 9 and lead to the back side of compensating disc 6 and the space between the eccentric end cap 5; 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 work inner end of four five equilibrium cambered surface active sections 13 is pasting the work exterior edge face of bottom plane 40, four five equilibrium cambered surfaces active section 13 and is being pasted by the horizontal frontal plane of compensating disc 6; Comprise complete section of five five equilibrium cambered surfaces from rotor 2, the size equal uniform of the width of full section both ends of the surface and the both ends of the surface width of four five equilibrium cambered surface active sections 13; 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, the eccentric positioning hole of compensating disc 6 67 is slidingly matched with locating stud 7; The central axis O of rotor shaft 1
2With eccentric axis O from rotor 2
1Between have eccentric distance t; Four five equilibrium cambered surface active sections 13 of rotor shaft 1 and between five five equilibrium cambered surfaces of rotor 2, rotation, being meshing with each other; Four point of contact of synchronized generation; Cross point of contact and form four axially extended sealing strips, the horizontal frontal plane in conjunction with bottom plane 40 and compensating disc 6 constitutes A, B, C and four working spaces of D; It is characterized in that: the space between the back side of described compensating disc 6 and the eccentric end cap 5 with in push back runner 9 and communicate, in push back runner 9 the other end lead to outlet 49.
Figure 12 is in order to illustrate rotor shaft 1 and from the camberline working process of rotor 2:
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 at a distance of get the t distance here for eccentric distance t.;
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 equilibrium annular arrays.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 array.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 five arc section R2 synchronized generation, cross point of contact and form four axially extended sealing strips, constitute A, B, C and four working 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 working 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 both ends of the surface width of four five equilibrium cambered surface active sections 13 of rotor shaft 1 with from rotor 2 the size equal uniform of both ends of the surface width; The work inner end of two rotors is pasting bottom plane 40 respectively, and the horizontal frontal plane of compensating disc 6 is pasting the work exterior edge face of two rotors respectively.Make that by means of the interior runner 9 that pushes back the back side of compensating disc 6 is stressed stressed greater than the front; The horizontal frontal plane of compensating disc 6 is close to the work exterior edge face of two rotors all the time; Then force the work inner end of two rotors also to be close to bottom plane 40, guarantee that the end face slip of four working spaces is in effective sealing all the time." O " type circle in all " O " type ring recess plays the motive sealing effect at position of living in.
Can guarantee that still four axially extended sealing strips form synchronously after the long-term use of the experience uniform wear, four axially extended sealing strips of synchronized generation guarantee that radially sliding of four working spaces is in effective sealing all the time.Possess in the time of end wear sealing compensation and gauge wear sealing compensation, realize being in good dynamic isolation sealing state for a long time between hyperbaric chamber and the low pressure chamber.
Installation steps and working principle:
The shaft with keyway section 12 of rotor shaft 1 is 40 1 sides from the bottom plane, pass central through bore 41 and are slidingly matched with it, and the work inner end of four five equilibrium cambered surface active sections 13 is pasting bottom plane 40.Be placed in eccentric half hole 42 from rotor 2 and be slidingly matched, also pasting bottom plane 40 from the work inner end of rotor 2.The central axis O of rotor shaft 1
2With eccentric axis O from rotor 2
1Between have eccentric distance t; Four five equilibrium cambered surface active sections 13 of rotor shaft 1 and between five five equilibrium cambered surfaces of rotor 2, rotation, being meshing with each other, four point of contact of synchronized generation are crossed point of contact and are formed four axially extended sealing strips; Horizontal frontal plane in conjunction with bottom plane 40 and compensating disc 6; Constitute A, B, C and four working spaces of D, can guarantee that still four axially extended sealing strips form synchronously after the long-term use of the experience uniform wear, guarantee the radially effectively sealing all the time of four working 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, the eccentric positioning hole of compensating disc 6 67 is slidingly matched with locating stud 7.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.
Band " O " 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, and locating stud 7 is fastened on the eccentric end cap 5 inboard faces.With eccentric end cap 5 shimmings 54 backs with at least three screw 8 on the exterior edge face, working area in airtight off-centre half hole 42 that is fixed on the pump housing 4 of the outer circular edge of eccentric end cap 5.
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." O " type circle in all " O " type ring recess plays the motive sealing effect at position of living in.
During work; External force drives rotor shaft 1 rotation through shaft with keyway section 12; Then stirring from rotor 2 rotation, is t from both rotating center deviation distances of rotor 2 and rotor shaft 1, 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 cambered surfaces of rotor 2; Horizontal frontal plane in conjunction with bottom plane 40 and compensating disc 6 constitutes A, B, C and four working spaces of D.During rotation, A, B, C and four working 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 working spaces of D is a crescent shape row mouth 48, leads to outlet 49.Push back runner 9 on outlet 49 bypass and pressure is sent to the back side of compensating disc 6 and the space between the eccentric end cap 5; Make that the back side of compensating disc 6 is stressed stressed greater than the front; The horizontal frontal plane of compensating disc 6 can be 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 plane 40, guarantee that the end face slip of four working spaces is in effective sealing all the time.Rotor shaft 1 continuously rotation order about A, B, C and four working spaces of D go round and begin again accomplish inhale, row's work.
Claims (1)
1. equilibrium canned-rotor pump in the space; Comprise the pump housing (4) and be installed in the rotor shaft (1) on the central through bore (41) of the pump housing (4) and be installed in off-centre half hole (42) of the pump housing (4) from rotor (2); The work inner end of two rotors is pasting the bottom plane (40) in eccentric half hole (42); The horizontal frontal plane of compensating disc (6) is also being pasted in the work exterior edge face of two rotors; And have locating stud (7) the restriction compensating disc (6) that is fixed on the eccentric end cap (5) to do to endwisely slip, eccentric end cap (5) comes the airtight exterior edge face, working area that is fixed on eccentric half hole (42) with at least three screw (8); " O " type ring recess, the central axis O of central through bore (41) are with in central through bore (41) lining on the pump housing (4)
2Eccentric axis O with off-centre half hole (42)
1Between have eccentric distance t; Crescent shape suction inlet (47) UNICOM on the bottom plane (40) import (46); Another crescent shape row mouthful (48) UNICOM on the bottom plane (40) outlet (49), outlet (49) have a bypass in push back runner (9) and lead to the back side of compensating disc (6) and the space between the eccentric end cap (5); 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 work inner end of four five equilibrium cambered surface active sections (13) is pasting bottom plane (40), and the work exterior edge face of four five equilibrium cambered surface active sections (13) is being pasted by the horizontal frontal plane of compensating disc (6); Comprise complete section of five five equilibrium cambered surfaces from rotor (2), the size equal uniform of the width of full section both ends of the surface and the both ends of the surface width of four five equilibrium cambered surface active sections (13); The central axis O of band " O " the type ring recess through hole (61) on the compensating disc (6)
2Eccentric axis O with band " O " type ring recess cylindrical (62)
1Between have eccentric distance t, the eccentric positioning hole (67) of compensating disc (6) and locating stud (7) are slidingly matched; The central axis O of rotor shaft (1)
2With eccentric axis O from rotor (2)
1Between have eccentric distance t; Four five equilibrium cambered surface active sections (13) of rotor shaft (1) and between five five equilibrium cambered surfaces of rotor (2), rotation, being meshing with each other; Four point of contact of synchronized generation; Cross point of contact and form four axially extended sealing strips,, constitute A, B, C and four working spaces of D in conjunction with the horizontal frontal plane of bottom plane (40) and compensating disc (6); It is characterized in that: the space between the back side of described compensating disc (6) and the eccentric end cap (5) with in push back runner (9) and communicate, in push back runner (9) the other end lead to outlet (49).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203883499U CN202284536U (en) | 2011-09-30 | 2011-09-30 | Four-space internal-pressure balance sealing rotor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203883499U CN202284536U (en) | 2011-09-30 | 2011-09-30 | Four-space internal-pressure balance sealing rotor pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202284536U true CN202284536U (en) | 2012-06-27 |
Family
ID=46296061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203883499U Expired - Fee Related CN202284536U (en) | 2011-09-30 | 2011-09-30 | Four-space internal-pressure balance sealing rotor pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202284536U (en) |
-
2011
- 2011-09-30 CN CN2011203883499U patent/CN202284536U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102182673A (en) | Four-line synchromesh spring compensation combination pump | |
| CN102192142B (en) | Annular air bag compensation sealing four-space rotor pump | |
| CN202370827U (en) | Disc spring compensating five-wire meshed rotor pump | |
| CN202284536U (en) | Four-space internal-pressure balance sealing rotor pump | |
| CN102182677B (en) | A kind of four line engagement inner pressuring sealing new pump | |
| CN202326204U (en) | Cylinder spring compensation five-space rotor pump | |
| CN202370825U (en) | Cylindrical spring compensating four-wire meshed rotor pump | |
| CN202187910U (en) | Novel four-wire meshing internal pressure seal pump | |
| CN202194821U (en) | Novel pump adopting three-line meshing and internal-pressure sealing | |
| CN102536798B (en) | A kind of compensation gear pump for internal-pressure passage | |
| CN202250812U (en) | Five-dimensional space internal pressure balance canned-rotor pump | |
| CN202228348U (en) | Three-dimension internal pressure balanced sealing rotor pump | |
| CN202194822U (en) | Novel pump adopting five-line meshing and internal-pressure sealing | |
| CN202228347U (en) | Pressure air bag compensation sealing three-space rotor pump | |
| CN202040076U (en) | Three-line synchromesh spring-compensation combination pump | |
| CN202250811U (en) | Spring compensating three-dimensional space rotor pump | |
| CN202040077U (en) | Four-line synchromesh spring-compensation combination pump | |
| CN202082094U (en) | Annular air bag compensation seal four-space rotor pump | |
| CN102425545B (en) | A kind of size cylinder spring combination compensation double-cavity vane pump | |
| CN202284535U (en) | Three-space rotor pump with cylindrical spring for compensation | |
| CN202326202U (en) | Five-space rotor pump adopting pressure air bag for seal compensation | |
| CN202326201U (en) | Spring compensating five-space rotor pump | |
| CN102182674B (en) | Five-wire synchronous meshing spring compensation combined pump | |
| CN202391727U (en) | Double-chamber vane pump with combined compensation of large cylinder springs and small cylinder springs | |
| CN202370824U (en) | Five-line-meshed rotor pump compensated by cylindrical spring |
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: 20120627 Termination date: 20120930 |