CN202326202U

CN202326202U - Five-space rotor pump adopting pressure air bag for seal compensation

Info

Publication number: CN202326202U
Application number: CN2011203883111U
Authority: CN
Inventors: 张意立
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-30
Filing date: 2011-09-30
Publication date: 2012-07-11
Anticipated expiration: 2021-09-30

Abstract

A five-space rotor pump adopting a pressure air bag for seal compensation includes a pump body, a rotor shaft installed on a central through hole of the pump body, and a slave rotor installed on an eccentric half hole of the pump body, wherein the working inner end surfaces of the two rotors are clung to the bottom plane of the eccentric half hole; the working outer end surfaces of the two rotors are clung to a front plane of a compensation plate; the working outer end surface of the eccentric half hole is provided with an eccentric end cover and sealed and fixed through at least three screws; a working eccentric distance t is reserved between a central axis O2 of the rotor shaft to an eccentric axis O1 of the slave rotor; five equally-divided cambered surface working sections of the rotor shaft and six equally-divided cambered surfaces of the slave rotor synchronously generate five contact points; five axially-extending sealing strips passing by the contact points are formed; and A,B,C,D and E five dynamic spaces are formed through the combination of the bottom plane of the eccentric half hole and the front plane of the compensation plate; and a positioning pin and a pressure air bag are arranged between the back surface of the compensation plate and the eccentric end cover and used for abrasion and seal compensation for the end surface.

Description

A kind of pressure air bag compensation sealing five Space Rotor pumps

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 a kind of pressure air bag compensation sealing five 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 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.

Summary of the invention

The purpose of the utility model provides a kind of pressure air bag compensation sealing five 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 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 pressure air bag compensation sealing five Space Rotor pumps; 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; 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 it is airtight fixing that the exterior edge face, working area in eccentric half hole has eccentric end cap to come with at least three screws; 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, and a crescent shape suction inlet UNICOM on the bottom surface, eccentric half hole import, another crescent shape row mouthful UNICOM outlet; 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 inner end of five five equilibrium cambered surface active sections is pasting bottom surface, eccentric half hole; The exterior edge face of five five equilibrium cambered surface active sections is being pasted by the horizontal frontal plane of compensating disc; From rotor complete section of six five equilibrium cambered surfaces are arranged, 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 band that eccentric end covers " O " type ring recess through hole and central axis O ₂Coaxial, band " O " type ring recess through hole is slidingly matched with no keyway shaft part, has three unthreaded holes that can pass screw at least along the outer circular edge of eccentric end cap, and unthreaded hole is with eccentric axis O ₁For branches such as the center of circle are arranged, locating stud is fastened on the inboard face of eccentric end cap; 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, hold a pressure air bag in the back side re-entrant angle of compensating disc, 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 work 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 dynamic spaces of E in conjunction with the horizontal frontal plane of eccentric bottom surface, half hole and compensating disc; Locating stud and pressure air bag are arranged between the back side of described compensating disc and the eccentric end cap, and this pressure air bag presents ring-type.

The beneficial effect of the utility model is: have locating stud and pressure air bag to play the effect of end wear sealing compensation between the back side of compensating disc and the eccentric end cap; Can guarantee that still five axially extended sealing strips form synchronously after the long-term use of the experience uniform wear, five axially extended sealing strips of synchronized generation guarantee that radially sliding of five dynamic spaces is in effective sealing all the time.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 chamber good movable isolating seal state.

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 interior axle rotor 1 and the relative position relation of five dynamic spaces of synchronized generation that are in operation from rotor 2;

Fig. 4 is with respect to Fig. 3, and axle rotor 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 axle rotor 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 axle rotor 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 axle rotor 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 axle rotor 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 exterior perspective view of a rotor 1.

Figure 10 is a rotor 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 pressure air bag compensation sealing five Space Rotor pumps; 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; 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 the exterior edge face, working area in eccentric half hole 42 has at least three screws of eccentric end cap 5 usefulness 8 airtight fixing; 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, the preferred value of t is 5 to 20 millimeters, and 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; 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 inner end of five five equilibrium cambered surface active sections 13 is pasting bottom surface, eccentric half hole 40; The exterior edge face of five 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 six five equilibrium cambered surfaces are arranged, 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; Band " O " type ring recess through hole 51 and central axis O on the eccentric end cap 5 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 eccentric end cap 5 inboard faces; 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, hold a pressure air bag 9 in the back side re-entrant angle 69 of compensating disc 6, 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 work 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, the horizontal frontal plane in conjunction with bottom surface, eccentric half hole 40 and compensating disc 6 constitutes A, B, C, D and five dynamic spaces of E; Locating stud 7 and pressure air bag 9 are arranged between the back side of described compensating disc 6 and the eccentric end cap 5, and this pressure air bag 9 presents ring-type.

Figure 10 is in order to illustrate a rotor 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 ₂At a distance of getting the t distance here for eccentric distance t. is 6 millimeters;

With O ₁Be the center of circle, R1 is that radius is made basic circle R1.Here getting the R1 radius is 106.0 millimeters;

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 55.8 millimeters;

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 147.5 millimeters;

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 7.4 millimeters;

With R5 is that radius is made two adjacent arc section R2 of arc section R5 connection respectively, and the R5 radius is 68.3 millimeters 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 dynamic spaces of E.Experience is long-term use uniform wear after, five point of contact of synchronized generation form five axially extended sealing strips can guarantee that still five axially extended sealing strips form synchronously, that guarantees five dynamic 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 axle rotor 1 and size equal uniform from the both ends of the surface width of rotor 2; Here get the both ends of the surface width and all be 50 millimeters; 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.Lean against the rebounding force that on the inboard face of eccentric end cap 5, produces by means of pressure air bag 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 surface, eccentric half hole 40, guarantee that the end face slip of five 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 bottom surface, off-centre half hole, pass central through bore 41 and are slidingly matched with it, and the inner end of five five equilibrium cambered surface active sections 13 is pasting bottom surface, eccentric half hole 40.Be placed in eccentric half hole 42 from rotor 2 and be slidingly matched, also pasting bottom surface, eccentric half hole 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 pressure air bag 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.The screw 8 of eight M6 passes 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 through 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 t; Five five equilibrium cambered surface active sections 13 of axle rotor 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 surface, eccentric half hole 40 and compensating disc 6 constitutes A, B, C, D and five dynamic spaces of E.During rotation, A, B, C, D and five dynamic 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 dynamic spaces of E is a crescent shape row mouth 48, leads to outlet 49.Axle rotor 1 continuously rotation order about A, B, C, D and five dynamic spaces of E go round and begin again accomplish inhale, row's work.

Claims

1. air bag compensation sealing five 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, and it is airtight fixing that the exterior edge face, working area in eccentric half hole (42) has eccentric end cap (5) to come with at least three screws (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, and a crescent shape suction inlet (47) UNICOM on the bottom surface, eccentric half hole (40) import (46), another crescent shape row mouthful (48) UNICOM outlet (49); 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 inner end of five five equilibrium cambered surface active sections (13) is pasting bottom surface, eccentric half hole (40); The exterior edge face of five 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 six five equilibrium cambered surfaces are arranged, 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); Band " O " type ring recess through hole (51) on the 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); 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, hold a pressure air bag (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; The central axis O of rotor shaft (1) ₂With eccentric axis O from rotor (2) ₁Between have work 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 surface, eccentric half hole (40) and compensating disc (6); Constitute A, B, C, D and five dynamic spaces of E, it is characterized in that: locating stud (7) and pressure air bag (9) are arranged between the back side of described compensating disc (6) and the eccentric end cap (5), and this pressure air bag (9) presents ring-type.