CN109630405A - A kind of track type moveable blade stepless frequency conversion pump - Google Patents
A kind of track type moveable blade stepless frequency conversion pump Download PDFInfo
- Publication number
- CN109630405A CN109630405A CN201811313893.XA CN201811313893A CN109630405A CN 109630405 A CN109630405 A CN 109630405A CN 201811313893 A CN201811313893 A CN 201811313893A CN 109630405 A CN109630405 A CN 109630405A
- Authority
- CN
- China
- Prior art keywords
- pump
- rotor
- moving vane
- bottom cover
- cover
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/40—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C2/08 or F04C2/22 and having a hinged member
- F04C2/44—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C2/08 or F04C2/22 and having a hinged member with vanes hinged to the inner member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/20—Rotors
Abstract
The invention discloses a kind of track type moveable blade stepless frequency conversion pumps, including bottom cover (1), pump case (2), bearing (3,8), blade positioning disk (4), pump shaft (5), moving vane (6), rotor (7), mechanical seal (9), upper end cover (10) and online flange (11).The volumetric efficiency that the present invention pumps is positively retained at 92% or more in the case of outlet pressure increase, the flow volume of the pump housing is realized than improving, overcomes the volumetric efficiency of vane type variable frequency pump as outlet pressure increases under rapid decrease and low frequency operating condition situation and under the pump housing small size situation the technical issues of low efficiency；Mechanism running resistance it is small and run it is smooth, can the elevating mechanism service life, the configuration of the present invention is simple, it is easy to manufacture and installation, manufacturing cost can be reduced.
Description
Technical field
The present invention relates to fluid machineries, especially pump field, are applied to various off ratings more particularly, to one kind
Environment down coversion conveys the track type moveable blade stepless frequency conversion pump of liquid working substance.
Background technique
Stepless frequency conversion may be implemented in now all of positive displacement pump, but since the positive displacement pump technology of existing mature application is restricted
Cause flow volume ratio very small in structure excessively complexity, compared to centrifugal pump technical products, the positive displacement pump of existing mature application
1/10-1/100 of the flow volume of technical products than being only equivalent to centrifugal pump technical products flow volume ratio.Therefore, existing
Stepless frequency conversion pump generally pumps technology using centrifugal impeller, and structure is generally divided into three parts, center water inlet, impeller and spiral case
The liquid of runner water outlet, the sucking of center water inlet flows through impeller, enters spiral casing flow passage by the centrifugal force effect high speed of impeller
Water outlet discharge.Existing variable frequency pump realizes the sucking and exclusion of liquid, the faster centrifugation of speed by the centrifugal force effect of impeller
Power is bigger, and it is bigger that liquid flows through the longer centrifugal force of impeller curved surface stroke, therefore, when wheel speed reduces, centrifugal force
It decreases；Liquid flows through the shortening of impeller curved surface stroke, and centrifugal force also reduces therewith, and therefore, existing variable frequency pump turns in low frequency
Efficiency can decline rapidly under fast operating condition, and the smaller pump efficiency of design volume is smaller.And existing variable frequency pump is due to matching requirements,
Must be there are enough gaps between spiral case and impeller, volumetric efficiency can decline rapidly in the case of water outlet pressure rise,
Impeller is also easy to be caused the efficiency of pump to decline rapidly by cavitation damage.
Summary of the invention
Object of the present invention is to overcome the deficiencies of the prior art and provide one kind to guarantee efficient volumetric efficiency, run it is smooth,
The track type moveable blade stepless frequency conversion pump of mechanical life length.
The present invention solves technical problem and adopts the following technical scheme that
A kind of track type moveable blade stepless frequency conversion pump, including bottom cover, pump case, bearing, blade positioning disk, pump shaft are living
Movable vane piece, rotor, mechanical seal, upper end cover and online flange.
The blade positioning disk, rotor are socketed on pump shaft by screw thread and form pump rotor, and are connected with motor output shaft
It connects, provides power by motor, drive pump rotor integral cycle rotating.It is recessed that the inner surface of the bottom cover and upper end cover is designed with bearing
Platform, guide rail groove；The pump rotor both ends pass through the bearing concave station of bearing and mechanical seal and bottom cover, upper end cover respectively
Close proximity；The pump case entangles pump rotor from the outside, and both ends are screwed on phase with bottom cover and upper end cover by screw thread respectively
Even；The online flange of the external connection of the upper end cover.
The inside end of the pump rotor and moving vane is to be arranged concentrically；Bottom cover, upper end cover, pump case and the work
The outer end of movable vane piece is set for the eccentric.The disk average mark of the blade positioning disk is furnished with rotor shaft hatch, passes through armature spindle
The inner end axis of hole and moving vane connects.The moving vane outer end guide rail groove axis with bottom cover and upper end cover respectively
It connects.
The rotor, bottom cover, upper end cover, pump case composition annular space divided by moving vane to be formed breathing space and
Compressional zone；The pump case surface is equipped with inlet and outlet, collectively forms fluid channel with breathing space and compressional zone.Motor
When rotation, pump rotor circumferential rotation type is driven, to drag moving vane movement, and then forms the cavity of multiple and different volumes, according to
Secondary to form expansion sucking cavity, the maximum expansion chamber of volume squeezes discharge cavity, the smallest compression chamber of volume.
As a preference, the mode that the inner end axis of the rotor shaft hatch and moving vane connects are as follows: a piece diameter of setting
Pivot pin equal to rotor shaft hatch is fixed with rotor shaft hatch close-fitting, and the inner end of moving vane is provided with through-hole, is provided in through-hole
With the comparable sliding shaft sleeve of pin diameter, sliding shaft sleeve is passed through by pivot pin and connect moving vane inner end with rotor shaft hatch.
As another preferred embodiment, guide rail groove axis of the moving vane outer end respectively with bottom cover and upper end cover connects
Mode are as follows: outer end both ends are machined with the pivot pin less than outer end diameter respectively, and diameter and outer end are provided on pivot pin
Comparable rolling bearing, and the diameter length of rolling bearing and height are equal to the width and height of guide rail groove, so that the axis of rolling
It holds to be limited in and does rolling movement in guide rail groove and do complete cycle movement around the center of circle of guide rail groove simultaneously.
It is not present straight the invention has the following beneficial effects: closely being connected between each components of entire pump body
Friction is connect, volumetric efficiency is positively retained between 100%-92% in the case of outlet pressure increase, realizes the flow of the pump housing
Volume ratio improves, and overcomes the technical issues of volumetric efficiency of vane type variable frequency pump is with outlet pressure increase rapid decrease；?
Under the premise of guaranteeing efficient volumetric efficiency, the uninterrupted and motor speed direct proportionality of track type moveable vane pump, gram
Taken vane type variable frequency pump under low frequency operating condition situation and pump housing small size situation under low efficiency the technical issues of；Pump housing movement portion
For part using the sliding friction connection of frictional resistance small rolling friction or low angular speed, mechanism running resistance is small and runs suitable
It freely, can the elevating mechanism service life.The configuration of the present invention is simple, easy to manufacture and installation, can reduce manufacturing cost.
Detailed description of the invention
Fig. 1 is a kind of assembly assumption diagram of track type moveable blade stepless frequency conversion pump of the present invention；
Fig. 2 is pump rotor assemblies schematic diagram；
Fig. 3 is upper end cover and bottom cover concave and convex platform schematic device；
Fig. 4 is track type moveable vane pump cross-sectional view；
Fig. 5 is blade positioning disk schematic surface；
Fig. 6 is blade positioning disk and blade interior end connection schematic diagram；
Fig. 7 is blade exterior end structure schematic diagram；
Fig. 8 is blade exterior end and guide rail groove connection schematic diagram；
Fig. 9 is breathing space and compressional zone and fluid channel schematic diagram；
Figure 10 is that track type moveable blade stepless frequency conversion pumps suction water chamber schematic diagram.
Specific embodiment
Technical solution of the present invention is further elaborated below with reference to examples and drawings.
Embodiment
As shown in Figure 1, present embodiments providing a kind of track type moveable blade stepless frequency conversion pump, including bottom cover 1, pump case
2, bearing 3,8, blade positioning disk 4, pump shaft 5, moving vane 6, rotor 7, mechanical seal 9, upper end cover 10 and online flange 11.
As shown in Fig. 2, the blade positioning disk 4, rotor 7 are socketed on pump shaft 5 by screw thread and form pump rotor, and with
Motor output shaft connection provides power by motor, drives pump rotor integral cycle rotating.
As shown in figure 3, the inner surface of the bottom cover 1 and upper end cover 10 is designed with bearing concave station 12, guide rail groove 13.
As shown in Figure 1, the pump rotor both ends pass through bearing 3,8 and mechanical seal 9 and bottom cover 1, upper end respectively
12 close proximity of bearing concave station of lid 10；The pump case 2 encases pump rotor, both ends respectively with bottom cover 1 and upper end cover 10
It is screwed on by screw thread connected；The online flange 11 of the external connection of the upper end cover 10.
As shown in Figure 4, Figure 5 and Figure 6, the inside end 61 of the pump rotor and moving vane 6 is to be arranged concentrically；Described
Bottom cover 1, upper end cover 10, pump case 2 and the outer end 62 of moving vane 6 are set for the eccentric.
The disk average mark of the blade positioning disk 4 is furnished with rotor shaft hatch 41, passes through rotor shaft hatch 41 and moving vane 6
61 axis of inner end connect, the mode that axis connects are as follows: piece diameter of setting be equal to rotor shaft hatch 41 pivot pin 42 and rotor shaft hatch 41 it is tight
With fixation, the inner end 61 of moving vane 6 is provided with through-hole 611, is provided in through-hole 611 and the comparable sliding of 42 diameter of pivot pin
Axle sleeve 612 passes through sliding shaft sleeve 612 by pivot pin 42 and connect 6 inner end 61 of moving vane with rotor shaft hatch 41.
As shown in Figure 7 and Figure 8, the moving vane outer end 62 is recessed with the guide rail of bottom cover 1 and upper end cover 10 respectively
13 axis of slot connects, the mode that axis connects are as follows: 62 both ends of outer end are machined with the pivot pin 621 less than outer end diameter respectively, in pivot pin 621
On be provided with diameter and the comparable rolling bearing 622 of outer end 62, and the diameter length of rolling bearing 622 and height are equal to guide rail
The width and height of groove 13, so that rolling bearing 622, which is limited in guide rail groove 13, does rolling movement and while around guide rail
Do complete cycle movement in the center of circle of groove 13.
As shown in Figure 8 and Figure 9, the annular space that the rotor 7, bottom cover 1, upper end cover 10, pump case 2 form is movable
The segmentation of blade 6 forms breathing space 31,32 and compressional zone 33,34；2 surface of pump case is equipped with water inlet 21 and water outlet 22,
Fluid channel is collectively formed with breathing space and compressional zone.
As shown in Figure 10, when motor rotates, pump rotor circumferential rotation type is driven, to drag the movement of moving vane 6, and then shape
At the cavity of multiple and different volumes.Cavity 31 is expansion sucking cavity, and cavity 32 is the maximum breathing space of volume, and cavity 33 is crowded
Pressure goes out cavity, and cavity 34 is the smallest compressional zone of volume.
It is closely connected between each components of the entire pump body of the present embodiment but direct friction, therefore, liquid is not present
Body working medium is squeezed in cavity 33 in the expansion sucking of cavity 31 and is discharged, and sucks volume of the discharge rate between cavity 32 and cavity 34
Difference, volumetric efficiency are positively retained between 100%-92% in the case of outlet pressure increase, realize the flow volume of the pump housing
Than improving, the technical issues of volumetric efficiency of vane type variable frequency pump is with outlet pressure increase rapid decrease is overcome；Guaranteeing
Under the premise of efficient volumetric efficiency, the uninterrupted and motor speed direct proportionality of track type moveable vane pump are overcome
Vane type variable frequency pump is under low frequency operating condition situation and under the pump housing small size situation the technical issues of low efficiency；Pump housing moving component is adopted
Connected with the small rolling friction of frictional resistance or the sliding friction of low angular speed, mechanism running resistance it is small and run it is smooth, can
The elevating mechanism service life.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify to technical solution documented by previous embodiment or equivalent replacement of some of the technical features；And
These are modified or replaceed, the spirit and model of technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (3)
1. a kind of track type moveable blade stepless frequency conversion pump, which is characterized in that including bottom cover (1), pump case (2), bearing (3,
8), blade positioning disk (4), pump shaft (5), moving vane (6), rotor (7), mechanical seal (9), upper end cover (10) and online flange
(11)；
The blade positioning disk (4), rotor (7) are socketed on pump shaft (5) by screw thread and form pump rotor；
The inner surface of the bottom cover (1) and upper end cover (10) is designed with bearing concave station (12), guide rail groove (13)；Described
Pump rotor both ends pass through the bearing concave station of bearing (3,8) and mechanical seal (9) and bottom cover (1), upper end cover (10) respectively
(12) close proximity；
The pump case (2) entangles pump rotor from the outside, and both ends are revolved with bottom cover (1) and upper end cover (10) by screw thread respectively
It connects connected；
The online flange of external connection (11) of the upper end cover (10)；
The inside end (61) of the pump rotor and moving vane (6) is to be arranged concentrically；The bottom cover (1), upper end cover
(10), pump case (2) and the outer end (62) of moving vane (6) are set for the eccentric；The disk of the blade positioning disk (4) is average
Rotor shaft hatch (41) are distributed with, are connect by rotor shaft hatch (41) and inner end (61) axis of moving vane (6)；The movable leaf
Guide rail groove (13) axis of piece outer end (62) respectively with bottom cover (1) and upper end cover (10) connects；
The rotor (7), bottom cover (1), upper end cover (10), pump case (2) composition annular space divided by moving vane (6)
It is formed breathing space (31,32) and compressional zone (33,34)；
Pump case (2) surface is equipped with water inlet (21) and water outlet (22).
2. a kind of track type moveable blade stepless frequency conversion pump according to claim 1, which is characterized in that the rotor shaft hatch
(41) mode connect with inner end (61) axis of moving vane (6) are as follows: piece diameter of setting is equal to the pivot pin of rotor shaft hatch (41)
(42) it is fixed with 41 close-fitting of rotor shaft hatch, the inner end (61) of moving vane (6) is provided with through-hole (611), is set in through-hole (611)
Be equipped with the comparable sliding shaft sleeve of pivot pin (42) diameter (612), pass through sliding shaft sleeve (612) for moving vane by pivot pin (42)
(6) inner end (61) is connect with rotor shaft hatch (41).
3. a kind of track type moveable blade stepless frequency conversion pump according to claim 1 or 2, which is characterized in that the work
The mode that movable vane piece outer end (62) connects with guide rail groove (13) axis of bottom cover (1) and upper end cover (10) respectively are as follows: outer end
(62) both ends are machined with the pivot pin (621) less than outer end diameter respectively, are provided with diameter and outer end on pivot pin (621)
(62) comparable rolling bearing (622), and the diameter length of rolling bearing (622) and height are equal to the width of guide rail groove (13)
And height, so that rolling bearing (622), which is limited in guide rail groove (13), does rolling movement and while around guide rail groove (13)
The center of circle do complete cycle movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811313893.XA CN109630405A (en) | 2018-11-06 | 2018-11-06 | A kind of track type moveable blade stepless frequency conversion pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811313893.XA CN109630405A (en) | 2018-11-06 | 2018-11-06 | A kind of track type moveable blade stepless frequency conversion pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109630405A true CN109630405A (en) | 2019-04-16 |
Family
ID=66067375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811313893.XA Pending CN109630405A (en) | 2018-11-06 | 2018-11-06 | A kind of track type moveable blade stepless frequency conversion pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109630405A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB661596A (en) * | 1949-04-14 | 1951-11-21 | Cecil John Rhodes | An improved rotary pump of the hinged vane type |
| US20050053509A1 (en) * | 2003-09-04 | 2005-03-10 | Liposcak Curtis J. | Hinged-vane rotary pump |
| CN103912489A (en) * | 2014-03-10 | 2014-07-09 | 汤斌 | Eccentric moving blade pump |
-
2018
- 2018-11-06 CN CN201811313893.XA patent/CN109630405A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB661596A (en) * | 1949-04-14 | 1951-11-21 | Cecil John Rhodes | An improved rotary pump of the hinged vane type |
| US20050053509A1 (en) * | 2003-09-04 | 2005-03-10 | Liposcak Curtis J. | Hinged-vane rotary pump |
| CN103912489A (en) * | 2014-03-10 | 2014-07-09 | 汤斌 | Eccentric moving blade pump |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190416 |