CN209976767U

CN209976767U - Symmetrical double-helix rotor for axial sliding vane pump

Info

Publication number: CN209976767U
Application number: CN201920390874.0U
Authority: CN
Inventors: 李博建; 张生昌; 梁志宏
Original assignee: Hebei Shuangda Petroleum Equipment Manufacturing Co Ltd
Current assignee: Hebei Shuangda Petroleum Equipment Manufacturing Co Ltd
Priority date: 2019-03-26
Filing date: 2019-03-26
Publication date: 2020-01-21
Anticipated expiration: 2029-03-26

Abstract

The utility model discloses an axial is two helical rotor of symmetry for sliding vane pump, hold chamber, No. two appearance chamber, connecting plate, plectrum, No. three appearance chambeies, No. four appearance chamber and bearing fixing ring including delivery port, frame, water inlet, bearing mounting hole, keyway, one. The utility model has the advantages that: the symmetrical double-spiral rotor for the axial sliding vane pump is reasonable in design, the containing cavities are formed in two sides of the connecting plate, the containing cavities in two sides are symmetrically installed, the double-spiral curved surface design is adopted, the axial bearing force can be reduced, the double-spiral rotor formed by the connecting plate and the containing cavities is installed in the center of the machine base, a water outlet is convenient to convey media of a water inlet, two sides of the double-spiral rotor are fixed through the pump cover, the rotating shaft penetrates through the bearing installation hole to be rotatably connected with the centers of the pump covers in two sides, sealing of the pump body is achieved through the pump cover, rotating power is provided for the rotor through the rotating shaft, wrap angle angles.

Description

Symmetrical double-helix rotor for axial sliding vane pump

Technical Field

The utility model relates to a double helix rotor specifically is a symmetrical double helix rotor for axial sliding vane pump, belongs to rotor pump technical field.

Background

The present sliding vane pump is mainly a radial sliding vane pump, which is composed of a rotor, a stator, sliding vanes and two side cover plates, and is a rotary pump for conveying liquid or pressurizing the liquid by means of the change of working volume formed between a pump cylinder and two adjacent vanes on the rotor when an eccentric rotor rotates.

The sliding vane pump has the defects that the self-suction performance is poorer than that of a gear pump, the requirement on oil suction conditions is strict, the rotating speed range of the sliding vane pump is required to be within the range of 500-1500 r/min, the sliding vane pump is sensitive to oil pollution, vanes are easy to be seized by impurities in oil, the working reliability is poor, the structure is complex, parts are easy to wear, the requirement on part manufacturing accuracy is high, and the price is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an axial is two helical rotor of symmetry for sliding vane pump just in order to solve above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a symmetrical double-helix rotor for an axial sliding vane pump comprises a water outlet, a base, a water inlet, a bearing mounting hole, a key groove, a first accommodating cavity, a second accommodating cavity, a connecting plate, a shifting sheet, a third accommodating cavity, a fourth accommodating cavity and a bearing fixing ring; the utility model discloses a bearing installation structure, including frame, delivery port, water inlet, bearing mounting hole, keyway, connecting plate, the delivery port is established in the frame top, the delivery port is inside intercommunication state with the frame, the water inlet is established in the frame below, the water inlet is inside the intercommunication state with the frame, the bearing mounting hole is established in the middle of the solid fixed ring of bearing, the keyway is established in the bearing mounting hole, No. one holds the chamber and establishes on the connecting plate, No. two hold the chamber and establish on the connecting plate, No. three hold the chamber and establish on the connecting plate, No. four hold the chamber and establish on the connecting plate.

Preferably, in order to reduce ring leakage and improve the flow of the pump, the closed containing cavity consists of a first containing cavity, a second containing cavity, a third containing cavity and a fourth containing cavity.

Preferably, in order to reduce the axial stress of the shaft and prolong the service life, the two sides of the connecting plate are provided with accommodating cavities which are symmetrically arranged.

Preferably, in order to facilitate the water flow from the water inlet to the water outlet, the double-helix rotor formed by the connecting plate and the containing cavity is arranged in the center of the machine base.

Preferably, in order to facilitate the rotor to be driven to work through the rotating shaft, the two sides of the double-spiral rotor are fixed through the pump covers, and the rotating shaft penetrates through the bearing mounting holes to be rotatably connected with the centers of the pump covers on the two sides.

Preferably, in order to position the rotating shaft, the key groove is a square key groove with the depth of 5 mm.

Preferably, in order to improve the sealing performance of the clearance between the high-pressure cavity and the low-pressure cavity, the wrap angle of the two ends of the rotor is 170-175 degrees.

The utility model has the advantages that: the symmetrical double-spiral rotor for the axial sliding vane pump is reasonable in design, the closed containing cavity comprises a first containing cavity, a second containing cavity, a third containing cavity and a fourth containing cavity, the sealed containing cavity formed by the four containing cavities can reduce the leakage amount of media when a pump body works and improve the flow of the pump, the containing cavities are arranged on two sides of the connecting plate, the containing cavities on two sides are symmetrically installed, the double-spiral curved surface design is adopted, the axial stress is reduced on a half meter, the axial bearing force can be reduced, the service life can be prolonged, the double-spiral rotor formed by the connecting plate and the containing cavities is installed in the center of a machine base and is convenient to convey the media of a water inlet to a water outlet, two sides of the double-spiral rotor are fixed through the pump cover, a rotating shaft penetrates through a bearing installation hole to be rotatably connected with the centers of the pump covers on, the shaft installed in the bearing installation hole is positioned, and the wrap angle of the two ends of the rotor is 170-175 degrees, so that the sealing performance of the gap between the high-pressure cavity and the low-pressure cavity is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structural frame of the present invention;

FIG. 3 is a schematic view of the double helix rotor of the present invention;

fig. 4 is a schematic view of the structural chamber of the present invention.

In the figure: 1. the bearing fixing device comprises a water outlet, a base, a water inlet, a bearing mounting hole, a key groove, a first accommodating cavity, a second accommodating cavity, a connecting plate, a shifting piece, a third accommodating cavity, a fourth accommodating cavity, a bearing fixing ring and a bearing fixing ring, wherein the water outlet is 2, the base is 3, the water inlet is 4, the bearing mounting hole is 5, the key groove is 6, the first accommodating cavity is 7, the second accommodating cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a symmetrical double-helix rotor for an axial sliding vane pump includes a water outlet 1, a base 2, a water inlet 3, a bearing mounting hole 4, a key slot 5, a first accommodating cavity 6, a second accommodating cavity 7, a connecting plate 8, a shifting sheet 9, a third accommodating cavity 10, a fourth accommodating cavity 11 and a bearing fixing ring 12; delivery port 1 is established in frame 2 top, delivery port 1 is inside intercommunication state with frame 2, water inlet 3 is established in frame 2 below, water inlet 3 is inside the intercommunication state with frame 2, bearing mounting hole 4 is established in the middle of the solid fixed ring 12 of bearing, keyway 5 is established in bearing mounting hole 4, No. one holds chamber 6 and establishes on connecting plate 8, No. two hold chamber 7 and establish on connecting plate 8, No. three hold chamber 10 and establish on connecting plate 8, No. four hold chamber 11 and establish on connecting plate 8, plectrum 9 is established in the highest point that holds the chamber, solid fixed ring 12 of bearing establishes in the middle of connecting plate 8.

The closed containing cavity consists of a first containing cavity 6, a second containing cavity 7, a third containing cavity 10 and a fourth containing cavity 11, the sealed containing cavity consisting of the four containing cavities can reduce the leakage amount of media when a pump body works and improve the flow rate of the pump, the two sides of the connecting plate 8 are provided with the containing cavities, the containing cavities at the two sides are symmetrically arranged, and the double-helix curved surface design is adopted, so that the axial stress is reduced on a half instrument, the axial bearing force can be reduced, and the service life can be prolonged, the double-helix rotor consisting of the connecting plate 8 and the containing cavities is arranged at the center of the machine base 2, the media of the water inlet 3 can be conveniently conveyed to the water outlet 1, the two sides of the double-helix rotor are fixed through the pump cover, the rotating shaft penetrates through the bearing mounting hole 4 and is rotatably connected with the centers of the pump covers at the two sides, the shaft installed in the bearing installation hole 4 is positioned, and the wrap angle of the two ends of the rotor is 170-175 degrees, so that the sealing performance of the gaps of the high-pressure cavity and the low-pressure cavity is improved.

The working principle is as follows: when the symmetrical double-helix rotor for the axial sliding vane pump is used, the two ends of the rotor are designed by double-helix curved surfaces, so that the axial stress is reduced by more than one half, the stress of an axial bearing can be reduced, the service life of the axial bearing is prolonged, the axial alternating impact load can be reduced, the vibration and the noise of the pump are reduced, and the two ends of the rotor form a complete annular double-helix curved surface by two curved surfaces with wrap angles of 170-175 degrees and sector planes with wrap angles of 5-10 degrees; because the rotor adopts a new design concept of a sector plane with the wrap angle of 5-10 degrees between two curved surfaces with the wrap angle of 170-175 degrees, the point-line sealing between the high-pressure and low-pressure cavities is optimized to be linear-surface sealing, the sealing performance between the gaps of the high-pressure and low-pressure cavities is improved, the leakage amount of a medium is reduced, the flow of the pump is improved, and the air suction and vacuum performance of the pump is greatly improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an axial is symmetry double helix rotor for sliding vane pump which characterized in that: the bearing fixing device comprises a water outlet (1), a base (2), a water inlet (3), a bearing mounting hole (4), a key groove (5), a first accommodating cavity (6), a second accommodating cavity (7), a connecting plate (8), a shifting sheet (9), a third accommodating cavity (10), a fourth accommodating cavity (11) and a bearing fixing ring (12); establish in frame (2) top delivery port (1), delivery port (1) is inside intercommunication state with frame (2), establish in frame (2) below water inlet (3), water inlet (3) are inside the intercommunication state with frame (2), bearing mounting hole (4) are established in the middle of bearing fixing ring (12), keyway (5) are established in bearing mounting hole (4), No. one hold chamber (6) and establish on connecting plate (8), No. two hold chamber (7) and establish on connecting plate (8), No. three hold chamber (10) and establish on connecting plate (8), No. four hold chamber (11) and establish on connecting plate (8), plectrum (9) are established in the highest point that holds the chamber, bearing fixing ring (12) are established in the middle of connecting plate (8).

2. The symmetrical double-helix rotor for an axial sliding vane pump according to claim 1, characterized in that: the first accommodating cavity (6), the second accommodating cavity (7), the third accommodating cavity (10) and the fourth accommodating cavity (11) form a closed accommodating cavity of the rotor.

3. The symmetrical double-helix rotor for an axial sliding vane pump according to claim 1, characterized in that: the two sides of the connecting plate (8) are provided with containing cavities, and the containing cavities on the two sides are symmetrically arranged.

4. The symmetrical double-helix rotor for an axial sliding vane pump according to claim 1, characterized in that: the double-helix rotor composed of the connecting plate (8) and the containing cavity is arranged at the center of the machine base (2).

5. The symmetrical double-helix rotor for an axial sliding vane pump according to claim 1, characterized in that: two sides of the double-spiral rotor are fixed through pump covers, and the rotating shaft penetrates through the bearing mounting holes (4) to be rotatably connected with the centers of the pump covers on the two sides.

6. The symmetrical double-helix rotor for an axial sliding vane pump according to claim 1, characterized in that: the depth of the key groove (5) is 5mm, and the key groove is a square key groove (5).

7. The symmetrical double-helix rotor for an axial sliding vane pump according to claim 1, characterized in that: the wrap angle of the two ends of the rotor is 170-175 degrees.