CN202250812U - Five-dimensional space internal pressure balance canned-rotor pump - Google Patents
Five-dimensional space internal pressure balance canned-rotor pump Download PDFInfo
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- CN202250812U CN202250812U CN2011203882710U CN201120388271U CN202250812U CN 202250812 U CN202250812 U CN 202250812U CN 2011203882710 U CN2011203882710 U CN 2011203882710U CN 201120388271 U CN201120388271 U CN 201120388271U CN 202250812 U CN202250812 U CN 202250812U
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- rotor
- eccentric
- compensating disc
- rotor shaft
- equilibrium
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Abstract
The utility model relates to a five-dimensional space internal pressure balance canned-rotor pump which comprises a pump body, a rotor shaft and a slave rotor, wherein the rotor shaft is arranged on a central through hole of the pump body; the slave rotor is arranged on an eccentric semi-hole of the pump body; an eccentric end closure is arranged on the outer working end surface of the eccentric semi-hole and is sealed and fixed by using at least three screws; an eccentric distance between the central axis O2 of the rotor shaft and the central axis O1 of the slave rotor is t; five contact points are synchronously generated between five equal cambered surface working sections of the rotor shaft and six equal cambered surfaces of the slave rotor; the rotor shaft and the slave rotor form five axial outspread sealing belts after passing the contact points; the five axial outspread sealing belts are combined with a base plane and the positive flat surface of a compensating disc to form A, B, C, D and E dynamic spaces; the load-carrying capability of the back of the compensating disc is led to be larger than the load-carrying capability of the front of the compensating disc by means of an inner pressure backflow channel; and one side of the positive flat surface of the compensating disc is always clung to the outer working end surfaces of two rotors and then compels the inner working end surfaces of the two rotors to be also clung to the base plane, thereby ensuring a high pressure cavity and a lower pressure cavity to be in a good end surface abrasion sealing compensation.
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 five 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 five 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 five spaces; Comprise the pump housing and be installed on 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; Work exterior edge face, eccentric half hole has eccentric end cap next airtight fixing with at least three screw; 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 to do to endwisely slip: 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 eccentric distance t, a crescent shape suction inlet on the bottom plane is being communicated with import, another crescent shape row mouth on the bottom plane is being communicated with and is exporting, 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 five five equilibrium cambered surface active sections and does not have the keyway shaft part and the shaft with keyway section; The work inner end of five five equilibrium cambered surface active sections is pasting the bottom plane; The work exterior edge face of five five equilibrium cambered surface active sections is being pasted by the horizontal frontal plane of compensating disc: comprise complete section of six 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 five 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 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 eccentric distance t; Five five equilibrium cambered surface active sections of rotor shaft and from five point of contact of synchronized generation between six five equilibrium cambered surfaces of rotor; Cross point of contact and form five axially extended sealing strips,, constitute A, B, C, D and five working spaces of E in conjunction with the horizontal frontal plane of bottom plane and compensating disc; It is characterized in that: 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 lead to outlet.
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 five axially extended sealing strips of rotor synchronized generation; Constitute A, B, C, D and five working spaces of E 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 an inner rotor shaft 1 and the relative position relation of five working 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 60 the degree, from rotor 2 around eccentric axis O
1Be rotated counterclockwise 50 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 120 the degree, from rotor 2 around eccentric axis O
1Be rotated counterclockwise 100 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 180 the degree, from rotor 2 around eccentric axis O
1Be rotated counterclockwise 150 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 240 the degree, from rotor 2 around eccentric axis O
1Be rotated counterclockwise 200 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 300 the degree, from rotor 2 around eccentric axis O
1Be rotated counterclockwise 250 the degree after relative position relation;
Fig. 9 is the perspective view of rotor shaft 1.
Figure 10 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 five spaces; Comprise the pump housing 4 and be installed on rotor shaft 1 and off-centre half hole 42 that is installed in the pump housing 4 on the central through bore 41 of the pump housing 4 from rotor 2; 42 work exterior edge faces, eccentric half hole have the screw 8 of at least three of eccentric end cap 5 usefulness airtight fixing; The horizontal frontal plane of compensating disc 6 is also being pasted in the work exterior edge face of two rotors, and has locating stud 7 restriction compensating discs 6 to do to endwisely slip; 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 eccentric distance t; A crescent shape suction inlet 47 on the bottom plane 40 is being communicated with import 46; Another crescent shape row on the bottom plane 40 mouthfuls 48 is being communicated with and export 49, outlet 49 have a bypass in push back runner 9 and lead to the back side of arriving compensating disc 6 and the space between the eccentric end cap 5; Rotor shaft 1 comprises five five equilibrium cambered surface active sections 13 and does not have keyway shaft part 11 and 12, five five equilibrium cambered surfaces of shaft with keyway section active section
13 work inner end is pasting the work exterior edge face of bottom plane 40, five five equilibrium cambered surfaces active section 13 and is being pasted by the horizontal frontal plane of compensating disc 6; Comprise complete section of six 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 five 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 eccentric distance t, the eccentric positioning hole 67 of compensating disc 6 is slidingly matched with locating stud 7; The central axis O of rotor shaft 1
2With eccentric axis O from rotor 2
1Between eccentric distance t; Five five equilibrium cambered surface active sections of rotor shaft 1 and from five point of contact of synchronized generation between six five equilibrium cambered surfaces of rotor 2; Cross point of contact and form five axially extended sealing strips, the horizontal frontal plane in conjunction with bottom plane 40 and compensating disc 6 constitutes A, B, C, D and five working spaces of E; 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 10 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 106.0mm;
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
1Six five equilibrium annular arrays.Here getting the R2 radius is 55.8mm;
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
2Five five equilibrium annular arrays.Here getting the R3 radius is 147.5mm;
Choose two arc section R3 and an arc section R2 respectively, the tangent arc section R4 that does of five lines gets the R4 radius here and is approximately 7.4mm;
With R5 is that radius is made two adjacent arc section R2 of arc section R5 connection respectively, and the R5 radius is 68.3mm here.
Article five, arc section R4 alternately with five point of contact of six arc section R2 synchronized generation, cross point of contact and form five axially extended sealing strips, constitute A, B, C, D and five working spaces of E.Even after using uniform wear for a long time, five point of contact of synchronized generation form five axially extended sealing strips can guarantee that still five axially extended sealing strips form synchronously, and that guarantees five working spaces radially is in effective sealing all the time.
The both ends of the surface width of five 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 five 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 five working spaces is in effective sealing all the time.Even can guarantee that still five axially extended sealing strips form synchronously after using uniform wear for a long time, five axially extended sealing strips of synchronized generation guarantee that radially sliding of five 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 five 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.Make the central axis O of rotor shaft 1
2With eccentric axis O from rotor 2
1Between eccentric distance t; Five five equilibrium cambered surface active sections 13 of rotor shaft 1 and from five point of contact of synchronized generation between six five equilibrium cambered surfaces of rotor 2; Cross point of contact and form five axially extended sealing strips; Horizontal frontal plane in conjunction with bottom plane 40 and compensating disc 6 constitutes A, B, C, D and five working spaces of E.Even can guarantee that still five axially extended sealing strips form synchronously after using uniform wear for a long time, guarantee the radially effectively sealing all the time of five 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 eccentric distance t, the eccentric positioning hole 67 of compensating disc 6 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.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." 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, five five equilibrium cambered surface active sections 13 of rotor shaft 1 and from five axially extended sealing strips of synchronized generation between six five equilibrium cambered surfaces of rotor 2; Horizontal frontal plane in conjunction with bottom plane 40 and compensating disc 6 constitutes A, B, C, D and five working spaces of E.During rotation, A, B, C, D and five working spaces of E 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, D and five working spaces of E 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 three working spaces is in effective sealing all the time.Rotor shaft 1 continuously rotation order about A, B, C, D and five working spaces of E 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 on off-centre half hole (42) of the pump housing (4) from rotor (2); Work exterior edge face, eccentric half hole (42) has eccentric end cap (5) next airtight fixing with at least three screw (8); The horizontal frontal plane of compensating disc (6) is also being pasted in the work exterior edge face of two rotors, and has locating stud (7) restriction compensating disc (6) to do to endwisely slip; " 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 eccentric distance t; Crescent shape suction inlet (47) on the bottom plane (40) is being communicated with import (46); Another crescent shape row mouthful (48) on the bottom plane (40) is being communicated with 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 five 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 five five equilibrium cambered surface active sections (13) is pasting bottom plane (40), and the work exterior edge face of five five equilibrium cambered surface active sections (13) is being pasted by the horizontal frontal plane of compensating disc (6); Comprise complete section of six 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 five 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 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 eccentric distance t; Five five equilibrium cambered surface active sections of rotor shaft (1) and from five point of contact of synchronized generation between six five equilibrium cambered surfaces of rotor (2); Cross point of contact and form five axially extended sealing strips,, constitute A, B, C, D and five working spaces of E 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 |
|---|---|---|---|
| CN2011203882710U CN202250812U (en) | 2011-09-30 | 2011-09-30 | Five-dimensional space internal pressure balance canned-rotor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203882710U CN202250812U (en) | 2011-09-30 | 2011-09-30 | Five-dimensional space internal pressure balance canned-rotor pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202250812U true CN202250812U (en) | 2012-05-30 |
Family
ID=46112064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203882710U Expired - Fee Related CN202250812U (en) | 2011-09-30 | 2011-09-30 | Five-dimensional space internal pressure balance canned-rotor pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202250812U (en) |
-
2011
- 2011-09-30 CN CN2011203882710U patent/CN202250812U/en not_active Expired - Fee Related
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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: 20120530 Termination date: 20120930 |