Main machine structure preventing dust from directly entering bearing
A bearing and direct technology, applied in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems of easy damage to bearings, reduce machine safety and reliability, reduce bearing service life, etc., to increase service life, simple structure, The effect of preventing dust from entering the bearing
Inactive Publication Date: 2015-11-25
NANJING CIGU TECH CORP LTD
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Problems solved by technology
[0002] In the existing centrifugal fan, during the normal operation of the fan, the airflow will enter the main engine through the gap under the impeller, and a large amount of dust will be deposited on the bearing near the bearing due to the resistance, and the bearing will be easily damaged after long-term accumulation, which greatly reduces the bearing capacity. The service life of the machine also reduces the safety and reliability of the machine
Method used
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[0015] The present invention will be further described below in conjunction with the accompanying drawings.
[0016] Please refer to Figure 1 to Figure 3 As shown, the host structure of the present invention to prevent dust from directly entering the bearing includes a rotor 1, a casing 2, an upper bearing bracket 3, an upper paired bearing 5, an upper bearing gland 6, a machine base 9, a lower bearing bracket 12, and a lower bearing The gland 17, the lower paired bearings 18 and the bearing cups 19 provided with dust-proof holes 190 are provided with mounting holes 31 on the upper bearing bracket 3, and the upper bearing bracket 3 is fixedly connected to the upper end of the casing 2, and the upper paired The bearing 5 is fixedly connected in the mounting hole 31 through the upper bearing gland 6 .
[0017] The lower bearing bracket 12 is fixedly connected to the machine base 9, the machine base 9 is fixedly connected to the lower end of the casing 2, the bearing sleeve cup...
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The invention discloses a main machine structure preventing dust from directly entering a bearing. The main machine structure comprises a rotor, a machine shell, an upper bearing support, an upper bearing pair, an upper bearing gland, a machine base, a lower bearing support, a lower bearing gland, a lower bearing pair and a bearing lantern ring provided with a dustproof hole. The upper bearing support is provided with an installation hole and fixedly connected to the upper end of the machine shell. The upper bearing pair is fixedly connected to the interior of the installation hole through the upper bearing gland. The lower bearing support is fixedly connected to the machine base. The machine base is fixedly connected to the lower end of the machine shell. The bearing lantern ring is fixedly connected to the lower bearing support. The lower bearing pair is fixedly connected to the interior of the dustproof hole in the bearing lantern ring through the lower bearing gland. The upper end and the lower end of the rotor are supported in the upper bearing pair and the lower bearing pair respectively. The upper tail end and the lower tail end of the rotor extend out of the machine shell through the upper installation hole and the dustproof hole. A first dustproof groove is formed in the inner wall of the installation hole. A second dustproof groove is formed in the inner wall of the dustproof hole. A third dustproof groove is formed in the inner hole wall of the lower bearing gland.
Description
Technical field: [0001] The invention relates to a host structure for preventing dust from directly entering bearings, which belongs to the technical field of centrifugal fans. Background technique: [0002] In the existing centrifugal fan, during the normal operation of the fan, the airflow will enter the main engine through the gap under the impeller, and a large amount of dust will be deposited on the bearing near the bearing due to the resistance, and the bearing will be easily damaged after long-term accumulation, which greatly reduces the bearing capacity. The service life of the machine also reduces the safety and reliability of the machine. [0003] Therefore, it is necessary to improve the prior art to solve the deficiencies of the prior art. Invention content: [0004] The present invention aims to solve the above-mentioned problems in the prior art by providing a host structure that prevents dust from directly entering the bearing. [0005] The technical solut...
Claims
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Inventor 佘浩丁嵩刘淑云吴立华董继勇
Owner NANJING CIGU TECH CORP LTD