Sealing structure of axial-flow type dust exhausting device
An axial flow, pneumatic sealing technology, applied in the components of pumping devices for elastic fluids, non-variable displacement pumps, machines/engines, etc., can solve the problem of motor shaft wear, low efficiency of centrifugal dust extraction devices, Occupy a large space and other problems, to achieve the effect of compact effect
Active Publication Date: 2014-05-14
CHINA NORTH VEHICLE RES INST
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Problems solved by technology
Therefore, the centrifugal dust extraction device has low efficiency and takes up a lot of space
[0004] If the dust extraction device uses a motor to drive the impeller, since the high-speed rotating impeller is always in an environment with high dust content, fine dust will enter the interior of the motor along the shaft end of the motor, resulting in wear of the motor shaft and high-speed bearings at the shaft end of the motor.
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[0012] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.
[0013] Such as image 3 As shown, an axial-flow dust extraction device includes a casing 1 , an axial-flow impeller 2 , a rear casing 5 , a motor 6 and a sealing sleeve 7 for a motor socket.
[0014] The housing 1 includes an inner sleeve 8, guide vanes 9 and an outer sleeve 10, the inner sleeve 8 is located in the outer sleeve 10, the inner sleeve 8 is coaxial with the outer sleeve 10, the guide vanes 9 are located between the inner sleeve 8 and the outer sleeve 10, and a plurality of guide vanes The vanes 9 are evenly distributed along the axial direction of the inner sleeve, and the inner sleeve 8 is fixedly connected with the outer sleeve 10 through the guide vanes. The sleeve 8, the guide vane 9 and the outer sleeve 10 form an integrated structure, and the inner sleeve 8, the guide vane 9 and the outer sleeve 10 are welded together or di...
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The invention belongs to the technical field of axial-flow type dust exhausting devices, and particularly relates to a sealing structure of an axial-flow type dust exhausting device. Shaft end sealing of a motor is realized, the requirement that no dust enters the shaft end of the motor is met and the filtering efficiency of a rotational flow pipe is improved. The pneumatic sealing structure comprises a pneumatic sealing cover (11) and a fixing pad (12), the pneumatic sealing structure is located between the inner end of an axial-flow type impeller (2) and the other end of an inner sleeve (8), the pneumatic sealing cover (11) is fixedly installed on the fixing pad (12), and the pneumatic sealing cover (11) and the fixing pad (12) are installed on a motor shaft together in a sleeved mode and are fixedly connected with the axial-flow type impeller (2). The pneumatic sealing cover (11) is of a conical structure.
Description
technical field [0001] The invention belongs to the technical field of axial-flow dust extraction devices, and in particular relates to a sealing structure of an axial-flow dust extraction device. Background technique [0002] The dust extraction device is an important part of the car air filter with a swirl tube, and its function is to extract the sand, dust and other particles that are filtered and separated by the swirl tube from the dust collection chamber of the swirl tube. Thereby ensuring the separation efficiency of the swirl tube. The experimental data shows that the filtration efficiency of the straight-through cyclone tube without dust extraction device is 10% to 20% of that of the cyclone tube with dust extraction device. Therefore, the quality of the dust extraction device directly affects the efficiency and efficiency of the cyclone tube. The service life of the car air filter. [0003] At present, most of the dust extraction devices of vehicle air filters ar...
Claims
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IPC IPC(8): F04D29/10
Inventor 孙阳雷强顺吴玉峰王建东陈克新卢进军邵春鸣刘海涛李继新李文超李明华徐洪斌乔梦华
Owner CHINA NORTH VEHICLE RES INST