CN203308766U

CN203308766U - Magnetic drive pump bearing assembly

Info

Publication number: CN203308766U
Application number: CN2013203489862U
Authority: CN
Inventors: 李刚; 唐剑; 杨承嗣; 张胜君
Original assignee: ANHUI SHENGTANG PUMPS VALVE MANUFACTURING Co Ltd
Current assignee: ANHUI SHENGTANG PUMPS VALVE MANUFACTURING Co Ltd
Priority date: 2013-06-18
Filing date: 2013-06-18
Publication date: 2013-11-27
Anticipated expiration: 2023-06-18

Abstract

The utility model discloses a magnetic drive pump bearing assembly. The magnetic drive pump bearing assembly is composed of a main shaft, a first rolling bearing, a second rolling bearing, an internal magnet rotor and an internal magnet rotor fastener, wherein the internal magnet rotor is placed at one end of the main shaft, the internal magnet rotor fastener is connected with an end portion of the main shaft, the internal magnet rotor is placed between the first rolling bearing and the internal magnet rotor fastener, the first rolling bearing and the second rolling bearing are arranged in the middle of the main shaft, the inner ring of the first rolling bearing, the outer ring of the first rolling bearing, the inner ring of the second rolling bearing and the outer ring of the second rolling bearing are all made of stainless steel, and a cylindrical roller of the first rolling bearing and a cylindrical roller of the second rolling bearing are both made of ceramic. Due to the adoption of the structure, the magnetic drive pump bearing assembly can keep running stably for a long time after being used, the noise is low, and the service life is prolonged.

Description

The magnetic drive pump bearing assembly

Technical field

The utility model relates to pump, relates in particular to a kind of magnetic drive pump bearing assembly.

Background technique

Existing magnetic drive pump comprises the pump housing, impeller, pump cover, the first sliding bearing, the second sliding bearing, support, separation sleeve, interior magnet rotor, main shaft, outer magnet rotor and motor, magnet rotor in installing on main shaft, the both sides of interior magnet rotor have respectively the first sliding bearing and the second sliding bearing, the first sliding bearing is identical with the structure of the second sliding bearing, all have radial sliding bearing and plain thrust bearing, radial sliding bearing plays a part to support the rotor motion, and plain thrust bearing plays a part the restrictive axial motion, requires thrust bearing that good wear resistance is not only arranged, hardness, must have higher compressive strength simultaneously, toughness, anti-mechanical shock ability, and the compressive strength of hard graphite and toughness are poor, cracky when magnetic drive pump moves thus, break, fragmentation is taken away by medium, and under the eddy current effect of liquid, the displacement of rotor axial play strengthens, radial vibration aggravation, interior magnetic cylinder body, mutual friction damage between bearing support and impeller ring isodynamic pump internals, noise strengthens, and the power that pumps reduces, until can't move.

The model utility content

Technical problem to be solved in the utility model is: a kind of magnetic drive pump bearing assembly is provided, and the use of this kind magnetic drive pump magnetic drive pump bearing assembly can keep operating steadily for a long time, and noise is low, increases the service life.

Solve this technical problem, the technical solution of the utility model is: a kind of magnetic drive pump bearing assembly, it is comprised of main shaft, the first rolling bearing, the second rolling bearing, interior magnet rotor and interior magnet rotor fastening piece, described interior magnet rotor is positioned at an end of main shaft, interior magnet rotor fastening piece is connected with the end of main shaft, described interior magnet rotor is between the first rolling bearing and interior magnet rotor fastening piece, and described the first rolling bearing and the second rolling bearing are arranged in the middle part of main shaft.

The two ends of described main shaft have the thread section of the impeller fastening piece being installed respectively and interior magnet rotor fastening piece being installed.

The material of the inside and outside circle of described the first rolling bearing and the second rolling bearing is stainless steel, and the material of the cylindrical roller of described the first rolling bearing and the second rolling bearing is pottery.

A kind of magnetic drive pump bearing assembly of the utility model adopts such structure, can keep for a long time operating steadily after use, and noise is low, increases the service life.

The accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model magnetic drive pump bearing assembly is described in more detail;

Fig. 1 is the use status architecture schematic diagram of the utility model magnetic drive pump bearing assembly;

In Fig. 1,1, the pump housing; 2, pump cover; 3, main shaft; 4, outer magnet rotor; 5, support; 6, motor; 7, interior magnet rotor; 8, the first rolling bearing; 9, the second rolling bearing; 10, impeller; 11, base; 12, interior magnet rotor fastening piece; 13, separation sleeve.

Embodiment

As shown in Figure 1, a kind of magnetic drive pump, comprise the pump housing 1, impeller 10, pump cover 2, support 5, separation sleeve 12, interior magnet rotor 7, main shaft 3, outer magnet rotor 4 and motor 6, the pump housing 1 and motor 6 are by base 11 supportings, impeller 10 is positioned at an end of main shaft 3, interior magnet rotor 7 is positioned at the cavity of pump cover 2 and separation sleeve 12 formation, interior magnet rotor 7 is positioned at the opposite end of the impeller of main shaft 3, on main shaft 7, have the first rolling bearing 8 and the second rolling bearing 9, main shaft, the first rolling bearing 8, the second rolling bearing 9, interior magnet rotor 7 and interior magnet rotor fastening piece 12 form the magnetic drive pump bearing assembly, interior magnet rotor 7 is positioned at an end of main shaft 3, interior magnet rotor fastening piece 12 is connected with the end of main shaft 3, interior magnet rotor 7 is between the first rolling bearing 8 and interior magnet rotor fastening piece 12, the first rolling bearing 8 and the second rolling bearing 9 are arranged in the middle part of main shaft 3.The first rolling bearing 8 and the second rolling bearing 9 are by pump cover 2 supportings, the conical section that pump cover 2 has the rolling bearing supporting section and joins with the rolling bearing supporting section, the larger diameter place that is positioned at conical section of pump cover 2 has the lubrication hole of inclination, the two ends of main shaft 3 have the thread section of the impeller fastening piece being installed respectively and interior magnet rotor fastening piece being installed, the material of the inside and outside circle of the first rolling bearing 8 and the second rolling bearing 9 is stainless steel, and the material of the cylindrical roller of the first rolling bearing 8 and the second rolling bearing 9 is pottery.

Claims

1. magnetic drive pump bearing assembly, it is characterized in that: it is comprised of main shaft, the first rolling bearing, the second rolling bearing, interior magnet rotor and interior magnet rotor fastening piece, described interior magnet rotor is positioned at an end of main shaft, interior magnet rotor fastening piece is connected with the end of main shaft, described interior magnet rotor is between the first rolling bearing and interior magnet rotor fastening piece, and described the first rolling bearing and the second rolling bearing are arranged in the middle part of main shaft.

2. magnetic drive pump bearing assembly according to claim 1 is characterized in that: the two ends of described main shaft have the impeller fastening piece is installed respectively and install in the thread section of magnet rotor fastening piece.

3. magnetic drive pump bearing assembly according to claim 1 and 2, it is characterized in that: the material of the inside and outside circle of described the first rolling bearing and the second rolling bearing is stainless steel, and the material of the cylindrical roller of described the first rolling bearing and the second rolling bearing is pottery.