CN202510385U

CN202510385U - Magnetic transmission fan

Info

Publication number: CN202510385U
Application number: CN201220000575XU
Authority: CN
Inventors: 郭辉; 邹立莉; 孙德福; 刘士超; 刘学刚; 孟晖
Original assignee: DALIAN HERMETIC PUMPS CO LTD
Current assignee: DALIAN HERMETIC PUMPS CO LTD
Priority date: 2012-01-04
Filing date: 2012-01-04
Publication date: 2012-10-31
Anticipated expiration: 2022-01-04

Abstract

The utility model discloses a magnetic transmission fan, which comprises a motor, an impeller arranged on an impeller shaft and a shell for supporting the impeller shaft, wherein an outer magnetic cylinder body is arranged on an output shaft of the motor, an inner rotor positioned in the outer magnetic cylinder body is arranged at the end of the impeller shaft, a connecting brush sleeved outside the outer magnetic cylinder body is connected between a housing at one end of the output shaft of the motor and the shell, an inner magnetic block is inlaid in the outer circumference surface of the inner rotor, an outer magnetic block matched with the inner magnetic block is inlaid in the inner circumference surface of the outer magnetic cylinder body, a separation sleeve is arranged between the inner rotor and the outer magnetic cylinder body, the separation sleeve is buckled on the outer side of the inner rotor and fixedly connected with the shell, and a sealing gasket is arranged at a position of a contact face of the separation sleeve and the shell. Because the separation sleeve is fixedly connected with the outer side of the shell and covers the inner rotor, so that the inner rotor is separated from other parts outside to realize static seal. The magnetic transmission fan is simple in overall structure, does not have any leakage during running, is safe, reliable and free of frequent maintenance of sealing elements, and improves the production efficiency.

Description

The magnetic drives blower fan

Technical field

The utility model relates to a kind of blower fan, and particularly a kind of magnetic drives blower fan is mainly used in places such as inflammable, explosive, poisonous, harmful, high temperature, high pressure.

Background technique

The blower fan that uses in places such as inflammable, explosive, poisonous, harmful, high temperature, high pressure at present all adopts mechanical sealing or packing seal mode; Between the impeller of internal system and the motor in the outside is movable sealing structure; Sealing effect is unsatisfactory; Leakage phenomenon more or less often occurs, maintenance is frequent, influences the operation of system.

Summary of the invention

The purpose of the utility model provide a kind of simple in structure, do not have any dielectric leakage, safe and reliable, the magnetic drives blower fan that can realize static seal, overcome the deficiency of existing technology.

The magnetic drives blower fan of the utility model; Comprise motor, be installed in the impeller on the impeller shaft and support the housing of impeller shaft; Outer magnetic cylinder body is installed on the output shaft of motor; The termination of impeller shaft be equipped be positioned at outside the inboard internal rotor of magnetic cylinder body, be connected with between the shell of output shaft one end of motor and the housing and overlap the connecting sleeve in the magnetic cylinder body outside outside, on the outer circumference face of internal rotor, be inlaid with interior magnetic patch; Be inlaid with the outer magnetic patch that matches with interior magnetic patch on the inside circumference face of magnetic cylinder body outside; Internal rotor and outside be provided with separation sleeve between the magnetic cylinder body, separation sleeve is buckled in the outside of internal rotor and is fixedly connected with housing, is provided with sealing gasket at the surface of contact place of separation sleeve and housing.

The magnetic drives blower fan of the utility model, owing to be fixedly connected with separation sleeve in the outside of housing, with the internal rotor cover within it; Realize isolating with outside miscellaneous part, reach the purpose of static seal, overall structure is simple; There is not any leakage during operation; Safe and reliable, need not often Sealing to be keeped in repair, improved manufacturing efficiency.

Description of drawings

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

Fig. 2 is an A-A section enlarged diagram shown in Figure 1.

Embodiment

Like Fig. 1, shown in 2: 1 is motor.14 is impeller shaft, and impeller shaft 14 in housing 6, is equipped with impeller 9 at the left end head of impeller shaft through Bearing Installation.Through key outer magnetic cylinder body 4 is installed on the output shaft of motor 1; The right-hand member head of impeller shaft 14 be equipped with through key be positioned at outside the inboard internal rotor 5 of magnetic cylinder body 4; Be connected with between the shell of output shaft one end of motor 1 and the housing 6 and overlap the connecting sleeve 2 in magnetic cylinder body 4 outsides outside, be bolt between connecting sleeve 2 and housing 6 and the motor housing and be connected.Magnetic patch 12 on the outer circumference face of internal rotor 5, being inlaid with is inlaid with the outer magnetic patch 13 that matches with interior magnetic patch 12 on the inside circumference face of magnetic cylinder body 4 outside, and interior magnetic patch 12 is permanent magnets with outer magnetic patch 13.Internal rotor 5 and outside be provided with separation sleeve 3 between the magnetic cylinder body 4, separation sleeve 3 is buckled in the outside of internal rotor 5 and is connected through bolt with housing 6, is provided with sealing gasket at the surface of contact place of separation sleeve 3 and housing 6.The left end screw of housing 6 is connected with left end cap 8, the right-hand member right end cap 11 that has been threaded.

During installation, be welded with fitting seat 10 on the tank body 7 of system, bolt is connected between housing 6 and the fitting seat 10; Make impeller 9 be positioned at the system inboard, motor 1 is positioned at the system outside, because the existence of separation sleeve 3 is arranged; Realized the static seal in tank body 7 inboards and the outside, do not had and leak, safe and reliable.

Claims

1. magnetic drives blower fan; Comprise motor (1), be installed in the impeller (9) on the impeller shaft (14) and support the housing (6) of impeller shaft (14); It is characterized in that: outer magnetic cylinder body (4) is installed on the output shaft of motor (1); The termination of impeller shaft (14) be equipped be positioned at outside the inboard internal rotor (5) of magnetic cylinder body (4); Be connected with between the shell of output shaft one end of motor (1) and the housing (6) and overlap the connecting sleeve (2) in magnetic cylinder body (4) outside outside; On the outer circumference face of internal rotor (5), be inlaid with interior magnetic patch (12), be inlaid with the outer magnetic patch (13) that matches with interior magnetic patch (12) outside on the inside circumference face of magnetic cylinder body (4), internal rotor (5) and outside be provided with separation sleeve (3) between the magnetic cylinder body (4); Separation sleeve (3) is buckled in the outside of internal rotor (5) and is fixedly connected with housing (6), is provided with sealing gasket at the surface of contact place of separation sleeve (3) and housing (6).