CN202170868U

CN202170868U - Vane pump

Info

Publication number: CN202170868U
Application number: CN2011203013842U
Authority: CN
Inventors: 肖义堃
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-18
Filing date: 2011-08-18
Publication date: 2012-03-21
Anticipated expiration: 2021-08-18

Abstract

The utility model discloses a vane pump, which includes a stator, a rotor and vanes, wherein the stator is provided with a cylindrical hole-shaped inner surface; the rotor is a cylinder with a radial groove; the rotor is eccentrically mounted in a cylindrical hole of the stator; and the vanes freely slide in the radial groove of the rotor. The vane pump is characterized in that the vane pump is provided with a vane shaft; the vane shaft is coaxially mounted with the cylindrical hole of the stator; the vanes are connected onto the vane shaft and form an impeller with a fixed outer diameter; and the impeller rotates in a matched way with the cylindrical hole-shaped inner surface of the stator. The vane pump has the advantages of simple structure, convenience for manufacturing, low energy consumption, stable performance and long service life, and is further suitable for conveying gas and liquid as water.

Description

A kind of vane pump

Technical field

The utility model relates to a kind of vane pump.

Background technique

Vane pump mainly is made up of rotor, stator (being the pump housing), blade and end cap; Stator has the internal surface of cylindrical hole, and rotor is the cylindrical body with radial groove, lays blade in the groove; Blade can be free to slide in groove, and rotor eccentricity is installed in the cylindrical hole of stator.The vane pump of existing technology, general special finger sliding vane pump, its blade all is a sliding vane; When rotor during by prime mover driven rotary, blade relies on centrifugal force or spring force or root of blade to feed pressure oil and is pressed on the stator inner surface, at the preceding half way around of rotor; The space that adjacent two blades surrounded increases gradually and forms parital vacuum and suck liquid, half way around then, and this space reduces gradually; The extruding liquid, with feeding liquid under pressure in discharge tube.

In the existing technology, the blade of vane pump all is a sliding vane, complex structure; Accuracy of manufacturing is high; Because the blade of sliding vane will rely on centrifugal force or spring force to be pressed on the stator inner surface, not only have the possibility of blocking during blade working, and vane top is also easy to wear; So the power consumption of the vane pump of existing technology is big, performance is unstable, working life is shorter; There is bigger friction in what is more important when vane top and stator inner surface press during owing to work in addition, so vane pump generally can only be in lubricated good oily medium system use; Like the hydraulic system and the lubrication system of lathe, oil hydraulic press, handling machinery, engineering machinery and plastics machinery etc., and can not apply in liquid medium occasions such as gas, water.

Summary of the invention

In view of the problem that present known technology exists, the technical problem that the utility model will solve be to provide a kind of simple in structure, easily manufactured, power consumption is little, stable performance, long service life, can suitable gas and the vane pump carried of liquid such as water.

For solving the problems of the technologies described above, the utility model takes following technological scheme to accomplish:

A kind of vane pump comprises stator, rotor and blade, and stator has the internal surface of cylindrical hole; Rotor is the cylindrical body with radial groove; Rotor eccentricity is installed in the cylindrical hole of stator, and blade is free to slide in the radial groove of rotor, it is characterized in that: said vane pump has sharf; Sharf and the coaxial installation of the cylindrical hole of stator; Said blade is connected on the sharf, and each blade forms the impeller with fixed outer diameter, is rotatably assorted between the cylindrical hole internal surface of impeller and said stator.

The beneficial effect of the utility model is: all blades are connected on the sharf; Each blade forms the impeller with fixed outer diameter; Be rotatably assorted between the cylindrical hole internal surface of impeller and said stator; So, blade does not need to be pressed on inner surface of stator through the effect of centrifugal force or spring force during vane pump work, does not have friction (leaving the gap that is rotatably assorted between the two) between vane top and the stator inner surface; So just solved the various deficiencies that existing vane pump exists in the background technique; The vane pump of the utility model is simple in structure, easily manufactured, the power consumption is little, stable performance, long service life, can not only be suitable for oily media fluid occasion, can also suitable gas and liquid occasion such as aqueous medium.Thus, the utility model compared with prior art has substantive distinguishing features and progress.

As preferably, every blade is independently, every blade pivot bush unit on said sharf.

As preferably, all blades are disjunctors, and the blade of disjunctor is pivot bush unit on said sharf, and blade can freely swing.Blade adopts plastic materials, and the root of blade is provided with the collar, and the root of blade narrows and is connected on the collar.The compact structure of above-mentioned blade is skillfully constructed, and it is suitable especially in the vane pump of ting model, to use.

As preferably, said rotor one end opening also has hollow structure.

Description of drawings

The utility model has following accompanying drawing:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the side view of Fig. 1;

Fig. 3 is the three-dimensional view of Fig. 1,2 rotors;

Fig. 4 is the three-dimensional view (every blade is independently) of blade among Fig. 1;

Fig. 5 is the structural representation of the utility model disjunctor blade.

Embodiment

Accompanying drawing has been represented the technological scheme and the embodiment of the utility model, combines accompanying drawing to further describe each relevant details and working principle thereof of embodiment below again.

With reference to accompanying

drawing

1,2,3,4, this kind vane pump comprises stator 1, rotor 2, blade 3 (blade is five), sharf 5 and end cap 7; Stator 1 has the internal surface of cylindrical hole 4, and end cap 7 is fixedly connected with stator 1 through screw, and rotor 2 is the cylindrical bodys with radial groove 9; Rotor 2 one end openings also have hollow structure, and spindle nose 8 pivoting supports that rotor 2 the other ends are connected with prime mover are on end cap 7, and rotor 2 off-centre are installed in the cylindrical hole 4 of stator; Blade 3 is free to slide in the radial groove 9 of rotor; The cylindrical hole 4 coaxial installations of said sharf 5 and stator, sharf 5 is fixed on the side cover of stator 1, and said blade 3 is connected on the sharf 5; Each blade 3 forms the impeller with fixed outer diameter; Be rotatably assorted between cylindrical hole 4 internal surfaces of impeller and said stator, every blade 3 is independently, and every blade 3 is provided with the collar 6 through its root and is actively socketed on the said sharf 5.

With reference to accompanying drawing 5; All blades 3 (blade is three) are disjunctors, and blade 3 adopts plastic materials, and the collar 11 that the blade 3 of disjunctor is provided with through its root jointly is actively socketed on the said sharf 5; The root 10 of blade 3 narrows and is connected on the collar 11; Because the rigidity at root of blade 10 positions is little, pliability is good, so blade can freely swing.

The vane pump of the utility model, all blades are connected on the sharf, and each blade forms the impeller with fixed outer diameter; Be rotatably assorted between the cylindrical hole internal surface of impeller and said stator; So blade can not be pressed on inner surface of stator during vane pump work, leaves the gap that is rotatably assorted between the two, does not have friction between vane top and the stator inner surface; The utility model not only is suitable for oily media fluid occasion, can also suitable gas and liquid occasion such as aqueous medium.

During the utility model work, rotor is by prime mover driven rotary, and rotor drives the blade rotation simultaneously; Because rotor and impeller shaft exist eccentric, thus blade in rotation, blade can slide in the radial groove of rotor; But the impeller outer diameter that blade forms is constant all the time, is in the state of being rotatably assorted all the time between the cylindrical hole internal surface of impeller and stator, at the preceding half way around of rotor; The space that adjacent two blades surrounded increases gradually and forms parital vacuum and suck liquid, half way around then, and this space reduces gradually; The extruding liquid, with feeding liquid under pressure in discharge tube.

Claims

1. a vane pump comprises stator (1), rotor (2) and blade (3), and stator (1) has the internal surface of cylindrical hole (4); Rotor (2) is the cylindrical body with radial groove (9); Rotor (2) off-centre is installed in the cylindrical hole (4) of stator, and blade (3) is free to slide in the radial groove (9) of rotor, it is characterized in that: said vane pump has sharf (5); The coaxial installation of cylindrical hole (4) of sharf (5) and stator; Said blade (3) is connected on the sharf (5), and each blade (3) forms the impeller with fixed outer diameter, is rotatably assorted between the cylindrical hole of impeller and said stator (4) internal surface.

2. a kind of vane pump as claimed in claim 1 is characterized in that: every blade (3) is independently, and every blade (3) is gone up pivot bush unit at said sharf (5).

3. a kind of vane pump as claimed in claim 1 is characterized in that: all blades (3) are disjunctors, and the blade of disjunctor (3) is gone up pivot bush unit at said sharf (5), and blade (3) can freely swing.

4. a kind of vane pump as claimed in claim 3 is characterized in that: blade (3) adopts plastic materials, and the root of blade (3) is provided with the collar (11), and the root of blade (10) narrows and is connected on the collar (11).

5. a kind of vane pump as claimed in claim 1 is characterized in that: said rotor (2) one end openings also have hollow structure.