Double-impeller axial flow fan for metro pulling motor braking cooling system
A traction motor and cooling system technology, used in machines/engines, axial flow pumps, mechanical equipment, etc., can solve problems such as affecting fan efficiency, high noise, and dynamic coordination.
Active Publication Date: 2012-11-21
HANGZHOU DUNLI ELECTRIC APPLIANCES
View PDF1 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, although the axial support plate of the motor in the background technology is designed as a streamlined guide plate according to the airflow direction, because the streamlined guide plate is a fixed guide plate, the angle of its guide is a fixed angle, and it cannot form a dynamic fit with the front and rear impellers. , so it is inevitable to generate wind resistance, which not only directly affects the efficiency of the fan, but also has a large noise
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0009] Embodiment: refer to attached figure 1 and 2 . A dual-impeller axial flow fan for a traction motor brake cooling system for a subway, which includes a double-impeller axial flow fan for a traction motor brake cooling system, the motor 4 is located in the axial flow fan casing 5 and the motor 4 is fixed by three small fans 6 In the axial flow fan housing 5, the three small fans 6 are equiangularly distributed on the circumference. The small fan 6 is connected to the axial flow fan casing 5 and the motor casing through a connecting piece 2, the connecting piece 2 is a sheet structure, and its narrow surface faces the front and rear impellers 1 and 3.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a double-impeller axial flow fan for a metro pulling motor braking cooling system, which is capable of cooling a pulling motor braking cooling system and comprises a double-impeller axial flow fan for a pulling motor braking cooling system. A motor is positioned in an axial flow fan shell and is fixed in the axial flow fan shell through three small-sized fans. Because thesmall-sized fans positioned between a front impeller and a rear impeller can well dynamically matched with the front impeller and the rear impeller, the invention can not only overcome the shortages in a background art, but also effectively enhance the efficiency of the small-sized fans and reduce the noise of the small-sized fans.
Description
technical field [0001] The invention relates to a dual-impeller axial flow fan for a braking cooling system of a subway traction motor capable of cooling the braking cooling system of a traction motor, which is mainly used in the braking cooling system of a subway traction motor and belongs to the field of axial flow fan manufacturing. Background technique [0002] Authorized announcement number CN100445569C, name "Traction motor brake cooling system double impeller axial flow fan", based on the existing axial flow fan including the casing, front and rear impellers and motor, the axial support plate of the motor is changed according to the direction of airflow The designed streamlined guide plate, the motor support plate and the streamlined guide vanes distributed on the outer periphery of the motor and fixed on the casing together form the middle guide vane, and the blade shape design of the front and rear impellers is improved at the same time. And arranged on the hub in a...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F04D25/08F04D19/00F04D29/64F04D29/58F04D29/66F04D29/54
Inventor 计国良朱先茂
Owner HANGZHOU DUNLI ELECTRIC APPLIANCES