CN201726236U

CN201726236U - Dust collector motor

Info

Publication number: CN201726236U
Application number: CN201020261592XU
Authority: CN
Inventors: 黄裕昌
Original assignee: Ningbo Dechang Electrical Machinery Manufacturing Co Ltd
Current assignee: Ningbo Dechang Electrical Machinery Manufacturing Co Ltd
Priority date: 2010-07-15
Filing date: 2010-07-15
Publication date: 2011-01-26
Anticipated expiration: 2020-07-15

Abstract

The utility model discloses a dust collector motor, which comprises a housing. The upper end of the housing is provided with an end cover; the inner cavity of the housing is provided with a motor; one end of the rotating shaft of the motor passes through the end cover and is fixedly provided with a moving impeller; a fixed impeller is in a disc structure; the bottom surface of the fixed impeller is sleeved outside the rotating shaft of the motor between the moving impeller and the end cover and is fixedly connected with the end cover; the side wall of the fixed impeller is a centrifugal air duct encircling the moving impeller at intervals; and the joint surface of the fixed impeller and the end cover is circumferentially provided with a seal device by taking the rotating shaft of the motor as the center. Compared with the prior art, the utility model avoids the short circuit of the air duct of the dust collector motor, ensures the efficiency of the motor, eliminates the squeaking sound of airflow generated due to existing gaps and reduces the noise pollutions.

Description

Motor of dust collector

Technical field

The utility model relates to a kind of motor of dust collector, particularly a kind of air channel structure of motor of dust collector.

Background technology

Daily motor of dust collector comprises power drive part and air passage portion, on the efficient that the air quantity that its performance is mainly reflected in generation and the ratio of energy consumption are embodied, the size of this efficient except with the structurally associated in the power performance of motor itself and whole air channel, also the airtight performance with the air channel is relevant; Present daily motor of dust collector air channel structure is: motor case is a cylinder, the end face of casing is fastenedly connected end cap, casing has air outlet near the side surface of rear end face, have air inlet on the end cap, airflow connection between end cap air inlet and the casing air outlet, machine shaft wears shell end cover and the movable vane wheel is fastenedly connected, the week of movable vane wheel is socketed with and decides impeller in the gap laterally, deciding impeller one end face and shell end cover is fastenedly connected, deciding the circumferential hoop of impeller establishes and the suitable centrifugal air channel of movable vane wheel, the outlet in centrifugal air channel is connected with the air inlet of shell end cover, moving, decide impeller and also be subjected to sealing of fan housing, one end face of fan housing has air inlet, and the other end of fan housing is connected with casing sealing; Distinguished and admirablely be inhaled into, after decide to pass the casing air channel behind the centrifugal air channel of impeller, discharge by the casing air outlet by the pressurization of movable vane wheel from the fan housing air inlet; The shortcoming in this air channel is that shell end cover is that metallic sheet stock is made through punching press, decide to be difficult to avoid between impeller and the shell end cover joint face occur being connected the slit, this slit has formed second air inlet, causes the air quantity in the work air channel of flowing through to descend, thereby reduces whole efficiency of motor; Also can produce howling during simultaneously at a high speed this joint gap of distinguished and admirable process, form noise pollution.

The utility model content

The technical problems to be solved in the utility model is to provide a kind of motor of dust collector, this motor of dust collector efficient height, and noise is little.

For solving the problems of the technologies described above, the motor of dust collector that the utility model provides has following structure:

A kind of motor of dust collector, comprise casing, the upper end of casing is equipped with end cap, in the chassis cavity below the end cap motor is installed, an end of described shaft of motor is passed described end cap and is installed with the movable vane wheel, between movable vane wheel and end cap, the impeller set of deciding of a disk-like structure is loaded on the machine shaft outside, should decide the bottom surface of impeller and end cap joins and interfix with end cap, the sidewall of deciding impeller is made of the centrifugal air channel of spacer ring moving impeller, described motor of dust collector also comprises the fan housing that is provided with air inlet, this fan housing and the upper end of motor case be airtight to be connected and will to move, deciding impeller and seal, is that the center is surrounded with sealing device with the motor rotary shaft on the joint face of described bottom surface of deciding impeller and end cap.

Preferably, it is the annular groove at center with the rotating shaft that the described joint face of deciding impeller and end cap is provided with one, and sealing ring is installed in the annular groove.

Preferably, described sealing ring is made by butyl rubber.

Preferably, describedly decide to connect by bolted between impeller and the end cap.

Compared with prior art, the utility model is by being provided with sealing device between the joint face of deciding impeller and shell end cover, improved the sealing property in the work air channel of motor, prevented the crossfire of wind, thereby guaranteed the efficient of motor of dust collector, and eliminated howling owing to the air-flow that exists the slit to produce, reduced noise pollution.

Description of drawings

Fig. 1 is the stereogram of the biopsy cavity marker devices of the utility model embodiment motor of dust collector, shows to remove assembling stereochemical structure of the present utility model behind the fan housing;

Fig. 2 is the partial cross sectional views of the utility model embodiment motor of dust collector, shows the assembly relation between each one of the utility model;

Fig. 3 is the partial enlarged drawing at A place among Fig. 2.

Mark the following drawings mark thereon in conjunction with the accompanying drawings:

The 1-casing, 11-casing air outlet, the 12-rotating shaft, the 2-end cap, 21-end cap air inlet, the 22-annular groove, 3-movable vane wheel, 4-decides impeller, the centrifugal air channel of 41-, 42-decides impeller and shell end cover joint face, 5-fan housing, 51-fan housing air inlet, 6-sealing ring, 7-bolt.

Embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but is to be understood that protection range of the present utility model is not subjected to the restriction of embodiment.

As illustrated in fig. 1 and 2, this motor of dust collector comprises casing 1, and the upper end of casing 1 is equipped with end cap 2, in casing 1 inner chamber of end cap below 2 motor is installed, and an end of described shaft of motor 12 is passed described end cap 2 and is installed with movable vane wheel 3.Between movable vane wheel 3 and end cap 2, the impeller 4 of deciding of a disk-like structure is set in machine shaft 12 outsides, and this decides the bottom surface of impeller 4 and end cap 2 joins and interfix with end cap 2.Described casing 1 is for having the column thin walled shell of a Closed End, and casing 1 has air outlet 11 near the side surface of rear end face.Have air inlet 21 on the end cap, airflow connection between end cap air inlet 21 and the casing air outlet 11.Be equipped with between the described surface, medial and lateral of deciding impeller 4 and centrifugal air channel 41 that the movable vane wheel is suitable, the outlet in centrifugal air channel 41 is connected with the air inlet of shell end cover 21.The upper open end of described casing is sealed and installed with fan housing 5, an end outer surface of fan housing 5 inner surfaces and casing 1 sealing socket and with the movable vane wheel with decide impeller and seal, and the other end of fan housing is provided with air inlet 51.

Further as shown in Figure 3, what setting had certain depth on end cap 2 and the joint face of decide impeller 4 is the toroidal cavity 22 at center with machine shaft 12, groove 22 is embedded in O-ring seal 6, sealing ring 6 is made by butyl rubber, has certain elasticity, the diameter of sealing ring 6 is greater than the degree of depth of described groove 22, and sealing ring 6 is subjected to deciding impeller 4 and pushes with the applying of shell end cover 2 installed surfaces, will decide the be connected sealing of impeller 4 with shell end cover 2.

During work, distinguished and admirablely be inhaled into from fan housing air inlet 51, by 3 pressurizations of movable vane wheel after decide the air channel of impeller 4 centrifugal air channels 41 to casing 1, and casing air outlet 11 discharges.

The utility model is by being provided with sealing ring between the joint face of deciding impeller and shell end cover, eliminated the joint gap of deciding impeller and shell end cover in the air channel, realize the assurance of motor of dust collector efficient, avoided high velocity air simultaneously, reduced noise pollution because of the howling that the gap produces.

More than disclosed only be a specific embodiment of the present utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into protection range of the present utility model.

Claims

1. motor of dust collector, comprise casing, the upper end of casing is equipped with end cap, in the chassis cavity below the end cap motor is installed, an end of described shaft of motor is passed described end cap and is installed with the movable vane wheel, between movable vane wheel and end cap, the impeller set of deciding of a disk-like structure is loaded on the machine shaft outside, should decide the bottom surface of impeller and end cap joins and interfix with end cap, the sidewall of deciding impeller is made of the centrifugal air channel of spacer ring moving impeller, described motor of dust collector also comprises the fan housing that is provided with air inlet, this fan housing and the upper end of motor case be airtight to be connected and will to move, deciding impeller seals, it is characterized in that, be that the center is surrounded with sealing device with the motor rotary shaft on the joint face of described bottom surface of deciding impeller and end cap.

2. motor of dust collector according to claim 1 is characterized in that, described sealing device is equipped with sealing ring for of being provided with is the annular groove at center with the rotating shaft in the annular groove on the joint face of deciding impeller and end cap.

3. motor of dust collector according to claim 2 is characterized in that described sealing ring is made by butyl rubber.

4. motor of dust collector according to claim 1 is characterized in that, describedly decides to connect by bolted between impeller and the end cap.