CN202091183U - Three-dimensional rotor pump for annular air bag compensation sealing - Google Patents
Three-dimensional rotor pump for annular air bag compensation sealing Download PDFInfo
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- CN202091183U CN202091183U CN2011202071855U CN201120207185U CN202091183U CN 202091183 U CN202091183 U CN 202091183U CN 2011202071855 U CN2011202071855 U CN 2011202071855U CN 201120207185 U CN201120207185 U CN 201120207185U CN 202091183 U CN202091183 U CN 202091183U
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Abstract
A three-dimensional rotor pump for annular air bag compensation sealing comprises a pump body 4, an axis rotor 1 installed in a central through hole 41 of the pump body 4 and a driven rotor 2 installed in an eccentric half hole 42 of the pump body 4. Working inner end faces of the two rotors cling to a bottom plane 40 of the eccentric half hole 42, working outer end faces of the two rotors further cling to a front face of a compensation plane 6, a working outer end face of the eccentric half hole 42 is provided with an eccentric end cover 5 and fixed through at least three bolts 8 in sealing mode, and a location pin 7 and an annular air bag 9 are arranged between the back face of the compensation disc 6 and the eccentric end cover 5. The axis rotor 1 and the driven rotor 2 synchronously produce three sealing belts extending in the axial direction to form three working spaces A, B and C. The rotor pump has capability of end face abrasion compensation and radial abrasion sealing compensation simultaneously, so that a high pressure cavity and a low pressure cavity can be in a good dynamic separation sealing state for a long time.
Description
Technical field
The utility model belongs to the mechanic field, and International Classification of Patents is the FO4D non-varactor pump, relate to a kind of with mechanical energy be converted to fluid pressure can the transformation of energy displacement pump, be meant a kind of ring-shaped gasbag compensation sealing three Space Rotor pumps 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 movable isolation of end face between hyperbaric chamber and the low-pressure cavity 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 the manufacture cost height, also do not possess self-compensating after the wearing and tearing: 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 Science Citation Index 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 Engineering Index is The Engineering Index, is called for short EI; Its English full name of " ISTP " U.S. " scientific and technical conference record index " is Index to Scientific ﹠ TechnicaI Proceedings, is called for short ISTP.) 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 simultaneously.
Summary of the invention
The purpose of this utility model provides a kind of ring-shaped gasbag compensation sealing three Space Rotor pumps, 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 cavity, remedy the deficiencies in the prior art, 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 ring-shaped gasbag compensation sealing three Space Rotor pumps, comprise the pump housing 4 and be installed in the axle rotor 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, 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, the exterior edge face, working area in eccentric half hole 42 has the screw 8 of at least three of eccentric end cap 5 usefulness airtight fixing, locating stud 7 and ring-shaped gasbag 9 are arranged between the back side of described compensating disc 6 and the eccentric end cap 5, locating stud 7 restriction compensating discs 6 can only be done and endwisely slip, the rebounding force of ring-shaped gasbag 9 makes the back side of compensating disc 6 stressed stressed greater than the front, the work exterior edge face that can be close to two rotors, then force the work inner end of two rotors also to be close to bottom plane 40, possess the end wear sealing compensation; And axle rotor 1 and produce three axially extended sealing strips synchronously from rotor 2, constitute A, B and three working spaces of C, can guarantee that still three axially extended sealing strips form synchronously after the long-term use of the experience uniform wear, three axially extended sealing strips that produce guarantee that radially sliding of three working spaces is in effective sealing all the time synchronously.This structure has accomplished to possess simultaneously end wear sealing compensation and gauge wear sealing compensation, realizes being in good dynamic isolation sealing state for a long time between hyperbaric chamber and the low-pressure cavity.
Central through bore on the described pump housing 4 is with " O " type ring recess for 41 li, eccentric distance t between the eccentric axis O1 in the central axis O2 of central through bore 41 and eccentric half hole 42, crescent shape suction inlet 47 UNICOMs on the bottom plane 40 import 46, another crescent shape row mouthful 48 UNICOMs outlet 49, and the exterior edge face, working area in eccentric half hole 42 has at least three screws 45 to fixedly connected with screw 8, and screw 45 is branch layouts such as the center of circle with eccentric axis O1.
Described axle rotor 1 comprises three 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 three five equilibrium cambered surface active sections 13 is pasting bottom plane 40, the exterior edge face of three five equilibrium cambered surface active sections 13 is being pasted by the horizontal frontal plane of compensating disc 6, from rotor 2 complete section of four five equilibrium cambered surfaces are arranged, the width of full section both ends of the surface equates consistent with the size of the both ends of the surface width of three five equilibrium cambered surface active sections 13.
Band " O " type ring recess through hole 51 on the described eccentric end cap 5 is coaxial with central axis O2, band " 0 " type ring recess through hole 51 is slidingly matched with no keyway shaft part 11, outer circular edge along eccentric end cap 5 has three unthreaded holes 55 that can pass screw 8 at least, unthreaded hole 55 is branch layouts such as the center of circle with eccentric axis O1, and locating stud 7 is fastened on the eccentric end cap 5 inboard faces.
Eccentric distance t between the central axis O2 of band " O " the type ring recess through hole 61 on the described compensating disc 6 and the eccentric axis O1 of band " 0 " type ring recess cylindrical 62, hold a ring-shaped gasbag 9 in the back side re-entrant angle 69 of compensating disc 6, the eccentric positioning hole 67 and the locating stud 7 of compensating disc 6 are slidingly matched.Lean against the rebounding force that on the inboard face of eccentric end cap 5, produces by means of ring-shaped gasbag 9, 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 plane 40, guarantee that the end face slip of three dynamic spaces is in effective sealing all the time.
The central axis O2 of described axle rotor 1 and from the eccentric distance t that works between the eccentric axis O1 of rotor 2, three five equilibrium cambered surface active sections 13 of axle rotor 1 with from three point of contact of generation synchronously between four five equilibrium cambered surfaces of rotor 2, cross point of contact and form three axially extended sealing strips, in conjunction with the horizontal frontal plane of bottom plane 40 and compensating disc 6, constitute A, B and three dynamic spaces of C.Can guarantee that still three axially extended sealing strips form synchronously after the long-term use of the experience uniform wear, three axially extended sealing strips that produce guarantee that radially sliding of three dynamic spaces is in effective sealing all the time synchronously.
The beneficial effects of the utility model are: possess end wear sealing compensation and gauge wear sealing compensation simultaneously, realized being in for a long time between hyperbaric chamber and the low-pressure cavity good movable isolating seal state.
Description of drawings
Fig. 1 is the sectional drawing of the utility model integral body by axis;
Fig. 2 is the sectional drawing in W-W cross section among Fig. 1;
Fig. 3 is that interior axle rotor 1 produces the relative position relation of three dynamic spaces synchronously with respect to being in operation from rotor 2;
Fig. 4 is with respect to Fig. 3, and axle rotor 1 is rotated counterclockwise 40 degree around central axis O2, from the relative position relation of rotor 2 after eccentric axis O1 is rotated counterclockwise 30 degree;
Fig. 5 is with respect to Fig. 3, and axle rotor 1 is rotated counterclockwise 80 degree around central axis O2, from the relative position relation of rotor 2 after eccentric axis O1 is rotated counterclockwise 60 degree;
Fig. 6 is with respect to Fig. 3, and axle rotor 1 is rotated counterclockwise 120 degree around central axis O2, from the relative position relation of rotor 2 after eccentric axis O1 is rotated counterclockwise 90 degree;
Fig. 7 is with respect to Fig. 3, and axle rotor 1 is rotated counterclockwise 180 degree around central axis O2, from the relative position relation of rotor 2 after eccentric axis O1 is rotated counterclockwise 135 degree;
Fig. 8 is with respect to Fig. 3, and axle rotor 1 is rotated counterclockwise 240 degree around central axis O2, from the relative position relation of rotor 2 after eccentric axis O1 is rotated counterclockwise 180 degree;
Fig. 9 is with respect to Fig. 3, and axle rotor 1 is rotated counterclockwise 360 degree around central axis O2, from the relative position relation of rotor 2 after eccentric axis O1 is rotated counterclockwise 270 degree;
Figure 10 is with respect to Fig. 3, and axle rotor 1 is rotated counterclockwise 480 degree around central axis O2, from the relative position relation of rotor 2 after eccentric axis O1 is rotated counterclockwise 360 degree.
Figure 11 is the perspective view of a rotor 1.
Figure 12 is a rotor 1 and from the cambered surface line construction drawing of rotor 2.
Embodiment
In conjunction with the accompanying drawings and embodiments, further structure of the present utility model and working principle are elaborated.
A kind of ring-shaped gasbag compensation sealing three Space Rotor pumps, comprise the pump housing 4 and be installed in the axle rotor 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, 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, the exterior edge face, working area in eccentric half hole 42 has the screw 8 of eight M6 of eccentric end cap 5 usefulness airtight fixing, locating stud 7 and ring-shaped gasbag 9 are arranged between the back side of described compensating disc 6 and the eccentric end cap 5, locating stud 7 restriction compensating discs 6 can only be done and endwisely slip, the rebounding force of ring-shaped gasbag 9 makes the back side of compensating disc 6 stressed stressed greater than the front, the work exterior edge face that can be close to two rotors, then force the work inner end of two rotors also to be close to bottom plane 40, possess the end wear sealing compensation; And axle rotor 1 and produce three axially extended sealing strips synchronously from rotor 2, constitute A, B and three working spaces of C, can guarantee that still three axially extended sealing strips form synchronously after the long-term use of the experience uniform wear, three axially extended sealing strips that produce guarantee that radially sliding of three working spaces is in effective sealing all the time synchronously.This structure has accomplished to possess simultaneously end wear sealing compensation and gauge wear sealing compensation, realizes being in good dynamic isolation sealing state for a long time between hyperbaric chamber and the low-pressure cavity.
Central through bore on the pump housing 4 is with " O " type ring recess for 41 li, eccentric distance is 6 millimeters between the eccentric axis O1 in the central axis O2 of central through bore 41 and eccentric half hole 42, crescent shape suction inlet 47 UNICOMs on the bottom plane 40 import 46, another crescent shape row mouthful 48 UNICOMs outlet 49, and the exterior edge face, working area in eccentric half hole 42 has eight screws 45 to fixedly connected with screw 8, and screw 45 is branch layouts such as the center of circle with eccentric axis O1.
Band " O " type ring recess through hole 51 on the eccentric end cap 5 is coaxial with central axis O2, band " O " type ring recess through hole 51 is slidingly matched with no keyway shaft part 11, along the outer circular edge of eccentric end cap 5 eight diameters that can pass screw 8 being arranged is 7 millimeters unthreaded hole 55, unthreaded hole 55 is branch layouts such as the center of circle with eccentric axis O1, and locating stud 7 is fastened on the eccentric end cap 5 inboard faces.
Eccentric distance is 6 millimeters between the eccentric axis O1 of the central axis O2 of the band on the compensating disc 6 " O " type ring recess through hole 61 and band " O " type ring recess cylindrical 62, hold a ring-shaped gasbag 9 in the front re-entrant angle 59 of compensating disc 6, the eccentric positioning hole 67 and the locating stud 7 of compensating disc 6 are slidingly matched.
Among Figure 12, illustrate a rotor 1 and from the cambered surface line working process of rotor 2 by means of CAD:
Setting-out X of elder generation and vertical with it line Y1 and line Y2, intersection point is respectively O1, O2, and O1 and O2 are at a distance of being eccentric distance t, and getting eccentric distance t here is 6mm;
With O1 is the center of circle, and 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, is the center of circle again with O1, with arc section R2 around O1 trisection annular array.Here getting the R2 radius is 40mm;
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, is the center of circle again with O2, with arc section R3 around O2 trisection annular array.Here getting the R3 radius is 120mm;
Choose two arc section R3 and an arc section R2 respectively, the three-way tangent arc section R4 that does gets the R4 radius here and is approximately 4.7mm;
With R5 is that radius is made two adjacent arc section R2 of arc section R5 connection respectively, and the R5 radius is 32mm here.
Article three, three point of contact alternately producing synchronously with three arc section R2 of arc section R4 are crossed point of contact and are formed three axially extended sealing strips, constitute A, B and three dynamic spaces of C.Experience is long-term use uniform wear after, three point of contact that produce synchronously form three axially extended sealing strips can guarantee that still three axially extended sealing strips form synchronously, that guarantees three dynamic spaces radially is in effective sealing all the time.
The both ends of the surface width of three five equilibrium cambered surface active sections 13 of axle rotor 1 is equal consistent with size 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 plane 40, and the horizontal frontal plane of compensating disc 6 is pasting the exterior edge face of two rotors simultaneously.Lean against the rebounding force that on the inboard face of eccentric end cap 5, produces by means of ring-shaped gasbag 9, 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 plane 40, guarantee that the end face slip of three dynamic spaces is in effective sealing all the time.
Installation steps and working principle:
The shaft with keyway section 12 of axle rotor 1 is 40 1 sides from the bottom plane, pass central through bore 41 and are slidingly matched with it, and the inner end of three 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 inner end of rotor 2;
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 axle rotor 1 and is slidingly matched, band " O " type ring recess cylindrical 62 is slidingly matched with eccentric half hole 42, the horizontal frontal plane of compensating disc 6 is pasting the work exterior edge face of two rotors, and the inner ring of ring-shaped gasbag 9 is enclosed within on the back side re-entrant angle 69 of compensating disc 6.
The back side of compensating disc 6 has positioning hole 67 and locating stud 7 to be slidingly matched, and locating stud 7 is fastenedly connected with eccentric end cap 5, thereby compensating disc 6 can only be made axial slip with respect to eccentric end cap 5.
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 axle rotor 1 and is slidingly matched, and makes locating stud 7 aim at eccentric positioning hole 67.Eight M6 screws 8 pass unthreaded hole 55, on the airtight screw 45 that is fixed on the pump housing 4 of eccentric end cap 5 shimmings 54.
" O " type circle in all " O " type ring recess plays the motive sealing effect at position of living in.
During work, external force drives 1 rotation of axle rotor by shaft with keyway section 12, stirs then from rotor 2 rotations.From both rotating center deviation distances of rotor 2 and axle rotor 1 is 6 millimeters, three five equilibrium cambered surface active sections 13 of axle rotor 1 with from three axially extended sealing strips of generation synchronously between three five equilibrium cambered surfaces of rotor 2, in conjunction with the horizontal frontal plane of bottom plane 40 and compensating disc 6, constitute A, B and three dynamic spaces of C.During rotation, A, B and three dynamic spaces of C 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 and three dynamic spaces of C is a crescent shape row mouth 48, leads to outlet 49.Axle rotor 1 rotation continuously orders about A, B and three dynamic spaces of C and goes round and begins again and finish suction, row's work.
At last, it is also to be noted that what more than enumerate only is a specific embodiment of the present utility model.Obviously, the utility model is not limited to above embodiment, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be regarded as protection domain of the present utility model.
Claims (6)
1. air bag compensation sealing three Space Rotor pumps, 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), 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, the exterior edge face, working area in eccentric half hole (42) has eccentric end cap (5) next airtight fixing with at least three screw (8), it is characterized in that: locating stud (7) and ring-shaped gasbag (9) are arranged between the back side of compensating disc (6) and the eccentric end cap (5).
2. a kind of air bag compensation sealing three Space Rotor pumps according to claim 1 is characterized in that: " O " type ring recess, the central axis O of central through bore (41) are with in central through bore (41) lining on the described pump housing (4)
2And eccentric distance t between the eccentric axis O1 in off-centre half hole (42), the preferred value of t is 5 to 20 millimeters, crescent shape suction inlet (47) UNICOM on the eccentric bottom surface, half hole (40) import (46), another crescent shape row mouthful (48) UNICOM outlet (49, and the exterior edge face, working area in eccentric half hole (42) has at least three screws (45) to fixedly connected with screw (8), and screw (45) is with eccentric axis O
1For branches such as the center of circle are arranged
3. a kind of air bag compensation sealing three Space Rotor pumps according to claim 1, it is characterized in that: described rotor shaft (1) comprises three 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 three five equilibrium cambered surface active sections (13) is pasting bottom surface, eccentric half hole (40), the exterior edge face of three five equilibrium cambered surface active sections (13) is being pasted by the horizontal frontal plane of compensating disc (6), from rotor (2) complete section of four five equilibrium cambered surfaces are arranged, the width of full section both ends of the surface equates consistent with the size of the both ends of the surface width of three five equilibrium cambered surface active sections (13).
4. a kind of air bag compensation sealing three Space Rotor pumps according to claim 1 is characterized in that: band " O " type ring recess through hole (51) on the described eccentric end cap (5) and central axis O
2Coaxial, band " O " type ring recess through hole (51) is slidingly matched with no keyway shaft part (11), has three unthreaded holes (55) that can pass screw (8) at least along the outer circular edge of eccentric end cap (5), and unthreaded hole (55) is with eccentric axis O
1For branches such as the center of circle arrange that locating stud (7) is fastened on the inboard face of eccentric end cap (5).
5. a kind of air bag compensation sealing three Space Rotor pumps according to claim 1 is characterized in that: the central axis O of band " O " the type ring recess through hole (61) on the described compensating disc (6)
2Eccentric axis O with band " O " type ring recess cylindrical (62)
1Between eccentric distance t, hold a ring-shaped gasbag (9) in the back side re-entrant angle (69) of compensating disc (6), the eccentric positioning hole (67) of compensating disc (6) and locating stud (7) are slidingly matched.
6. a kind of air bag compensation sealing three Space Rotor pumps according to claim 1 is characterized in that: the central axis O of described rotor shaft (1)
2With eccentric axis O from rotor (2)
1Between the eccentric distance t that works, three five equilibrium cambered surface active sections (13) of rotor shaft (1) and from producing synchronously three point of contact between four five equilibrium cambered surfaces of rotor (2), cross point of contact and form three axially extended sealing strips, in conjunction with the horizontal frontal plane of bottom surface, eccentric half hole (40) and compensating disc (6), constitute A, B and three dynamic spaces of C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202071855U CN202091183U (en) | 2011-06-07 | 2011-06-07 | Three-dimensional rotor pump for annular air bag compensation sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202071855U CN202091183U (en) | 2011-06-07 | 2011-06-07 | Three-dimensional rotor pump for annular air bag compensation sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202091183U true CN202091183U (en) | 2011-12-28 |
Family
ID=45366252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202071855U Expired - Fee Related CN202091183U (en) | 2011-06-07 | 2011-06-07 | Three-dimensional rotor pump for annular air bag compensation sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202091183U (en) |
-
2011
- 2011-06-07 CN CN2011202071855U patent/CN202091183U/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: 20111228 Termination date: 20120607 |