CN219366312U - Vane pump with new vane - Google Patents

Abstract

The utility model discloses a vane pump with new vanes, which comprises a pump body, wherein a rotor is arranged in the pump body, a stator with an approximately elliptical inner cavity is sleeved outside the rotor, vanes capable of radially moving along the rotor are uniformly distributed on the circumference of the rotor, the top ends of the vanes are abutted to the inner cavity wall of the stator, two sides of the stator are respectively provided with side plates, two sides of the vanes, which face the side plates, are respectively provided with side grooves, a blocking body is arranged in each side groove, the blocking body is matched with each side groove, balance holes penetrating through the vanes are respectively arranged at positions close to the two side grooves, and lubricating holes communicated with the balance holes are formed in the blocking body. According to the utility model, the balance holes and the lubrication holes are formed in the blades, so that the side grooves can be omitted, the area for blocking the oil cavity with higher pressure from leaking into the oil cavity with lower pressure is greatly increased, the ineffective energy consumption of the pump body is reduced, and the energy-saving efficiency can be further improved.

Description

Vane pump with new vane

Technical Field

The present utility model relates to a hydraulic pump, and more particularly, to a vane pump having new vanes.

Technical Field

The basic structure of the vane pump is as follows: the pump body is internally provided with a transmission shaft, a rotor is fixedly sleeved on the transmission shaft, a stator is sleeved outside the rotor, a plurality of blade grooves, generally 12 blade grooves, are circumferentially and uniformly distributed on the outer peripheral surface of the rotor, blades capable of radially moving along the rotor are arranged in the blade grooves, the top ends of the blades can be abutted on the inner surface of the stator, side plates are respectively arranged on two sides of the rotor, and the inner surface of the stator is formed into an approximately elliptical inner cavity wall by a large arc surface, a variable curvature arc surface and a small arc surface.

In order to balance the pressure of the top end and the root end of the blade in the prior art, the blade in the blade pump ensures that the abutting force of the blade on the inner cavity wall of the stator is proper, so as to slow down the abrasion of the blade, the service life of the blade is prolonged, side grooves are respectively arranged on two side surfaces of the blade facing the side plates, for example, the patent publication number CN110131162A, which is announced by the Chinese patent office in 2019 month 16, of the utility model discloses an energy-saving blade pump.

The technical scheme of the utility model well solves the energy-saving problem of the vane pump in the pressure-maintaining stage, and the energy-saving efficiency of the vane pump can be further improved by reducing the internal leakage of the vane pump due to the existence of side grooves at two sides of the vane.

Disclosure of Invention

In order to overcome the defects, the technical problems to be solved by the utility model are as follows: provided is a vane pump with new vanes, which can further improve energy saving efficiency by reducing internal leakage.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a impeller pump with new blade, it includes the pump body, be equipped with the rotor in the pump body, the rotor overcoat is equipped with the stator that has nearly oval inner chamber, the rotor circumference equipartition has can be followed the radial movable blade of rotor, the top butt of blade is on the inner chamber wall of stator, the both sides of stator are equipped with the curb plate respectively, the both sides of blade orientation curb plate are equipped with the side tank respectively, be equipped with the stifled body in the side tank, the stifled body with the side tank matches, the blade is being close to two the position department of side tank is equipped with respectively and runs through the balance hole of blade, be equipped with on the stifled body with the lubrication hole that the balance hole is linked together.

The positive effect of blade both sides side groove has two, and one effect is balanced the pressure between blade top and the root end to slow down the wearing and tearing of blade top, extension blade's life, another effect is the friction between lubricated blade and the curb plate, and the purpose is also slowing down the wearing and tearing of blade side, extension blade's life, in addition there is a negative effect, has reduced the area that is used for blockking the higher oil pocket of pressure between blade both sides side and the curb plate to the lower oil pocket leakage of pressure, leads to the interior volume of leaking of the pump body to increase, thereby has increased the inefficacy consumption of the pump body. Because the sum of the two positive effects is greater than the negative effect, the blade side groove is in the prior art for a long time, the further improvement of the energy-saving efficiency of the blade pump is restricted, and the technical scheme for keeping the two positive effects and removing the negative effect is explored and becomes the target for the industry for a long time. The inventor provides a technical scheme to skillfully solve the problem, the technical scheme is that firstly, a balance hole is arranged at the position of a blade close to a side groove to replace the function of the side groove for balancing the pressure between the top end and the root end of the blade, then a lubrication hole is arranged at the side surface of the blade, oil in the balance hole is guided to the side surfaces of the two sides of the blade to replace the function of friction between the side groove lubrication blade and a side plate, so that the side groove in the prior art can be reasonably eliminated, the area for blocking the leakage of an oil cavity with higher pressure to the oil cavity with lower pressure is greatly increased, the ineffective energy consumption of a pump body is reduced, and the energy saving efficiency can be further improved.

Preferably, the blocking body is integrally connected with the blade. The elimination of processing of side grooves on two sides of the blade is equivalent to the integration of the blocking body and the blade, and the arc-shaped groove is difficult to process, the round holes are easy to process, so that the manufacturing cost of the blade can be reduced due to the elimination of the side grooves.

Preferably, the number of the lubrication holes is two. The side edges of the blades are in a long strip shape, and the upper side and the lower side of the blades are provided with two lubrication holes, so that lubrication of the two side edges of the blades and the side plates is facilitated.

According to a further technical scheme, the axial direction of the balance hole is the same as the extending direction of the side groove.

The beneficial effects are that: because the balance holes and the lubrication holes are formed in the blades, side grooves can be omitted, the area for blocking leakage from the oil cavity with higher pressure to the oil cavity with lower pressure is greatly increased, the non-effective energy consumption of the pump body is reduced, and the energy-saving efficiency can be further improved.

Drawings

FIG. 1 is a schematic view of a construction of the present utility model;

FIG. 2 is a schematic cross-sectional view of an assembly of core components of the present utility model;

FIG. 3 is a schematic cross-sectional view of a blade of the present utility model;

FIG. 4 is a schematic view of the construction of a blade according to the present utility model;

fig. 5 is a schematic structural view of a prior art blade.

In the figure: pump body 1, stator 2, rotor 3, curb plate 4, blade 5, lubrication hole 6, blade groove 7, balance hole 8, side tank 9.

Description of the embodiments

The utility model will be further illustrated by the following examples in conjunction with the accompanying drawings.

Examples: the utility model provides a vane pump with new blade, see the illustration, it includes pump body 1, be equipped with rotor 3 in the pump body 1, rotor 3 overcoat is equipped with the stator 2 that has nearly oval inner chamber, rotor 3 surface circumference equipartition has twelve blade grooves 7, be provided with in the blade groove 7 can follow rotor 3 radial movement's blade 5, the top butt of blade 5 is on the inner chamber wall of stator 2, the both sides of stator 2 are equipped with curb plate 4 respectively, be equipped with the shutoff body in the both sides groove 9 of blade 5 orientation both sides board 4, the shutoff body with side groove 9 matches and links as an organic whole, and side groove 9 combines together with the shutoff body and is equivalent to cancelling side groove 9, blade 5 is close to two former side groove 9's position do not are equipped with the balancing hole 8 that runs through blade 5, balancing hole 8 with former side groove 9 is parallel, blade 5 is equipped with in former position department of shutoff body with the lubrication hole 6 that is linked together, two sides of blade 5 dispose 2 lubrication holes respectively from top to bottom.

The above-described embodiment is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way, and other variations and modifications may be made without departing from the technical aspects set forth in the claims.

What is not described in detail in this specification is prior art known to those skilled in the art.

Claims (3)

1. The utility model provides a impeller pump with new blade, it includes the pump body, be equipped with the rotor in the pump body, the rotor overcoat is equipped with the stator that has nearly oval inner chamber, the rotor circumference equipartition has can be followed the radial movable blade of rotor, the top butt of blade is on the inner chamber wall of stator, the both sides of stator are equipped with the curb plate respectively, the both sides of blade orientation curb plate are equipped with side groove respectively, its characterized in that: the novel sliding vane is characterized in that a blocking body is arranged in the side grooves and matched with the side grooves, balance holes penetrating through the vanes are respectively formed in positions, close to the two side grooves, of the vanes, and lubrication holes communicated with the balance holes are formed in the blocking body.

2. A vane pump with new vanes as claimed in claim 1, wherein: the blocking body is connected with the blade into a whole.

3. A vane pump with new vanes according to claim 2, characterized in that: the number of the lubrication holes is two.