A dust explosion-proof motor
An explosion-proof motor and dust technology, which is applied in the field of motors, can solve the problems of increase, difficulty in gas interaction, and easy failure, etc., and achieve the effect of reducing damage, reducing possibility, and strong heat dissipation
Active Publication Date: 2021-04-20
浙江奇志电机股份有限公司
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Problems solved by technology
[0004] However, when the heat dissipation capacity of the fan cannot meet the heat production capacity of the motor when it is working, the gas inside the dust-proof motor is not easy to interact with the outside air, causing the air pressure of the gas inside the dust-proof motor to increase due to the increase in temperature, while the inside of the motor The stator and rotor work under high temperature and high pressure for a long time, and they are prone to failure
Method used
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Embodiment Construction
[0035]The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0036] refer to figure 1 , is a dust explosion-proof motor disclosed in the present invention, including a casing 1, an output shaft 2, a casing 3 and a fan 4, and a plurality of cooling fins are distributed on the circumferential side wall of the casing 1, and the length direction of the cooling fins and the output The length directions of the shafts 2 are consistent, and ventilation passages are formed between adjacent cooling fins. An opening is provided on the end surface of the casing 1 facing the casing 3 , the opening is covered with a cover plate, and the cover plate is composed of a movable connector 5 , an elastic membrane 6 and a connecting cover 61 . The movable connector 5 is sleeved on the output shaft 2 , the connecting cover 61 is annular and fixed on the end surface of the casing 1 by bolts, and the elastic membrane 6 is connected between the...
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The invention relates to a dust explosion-proof motor, which includes a casing, an output shaft, a casing and a fan. An opening is opened on the end surface of the casing facing the casing, a movable connecting piece is set on the output shaft, and the circumferential side of the movable connecting piece An elastic membrane is connected between the wall and the inner side of the opening of the casing, the movable joint and the elastic membrane cover the opening of the casing together, and the output shaft continues to extend in the axial direction toward the end of the casing and is rotatably connected to the casing , the output shaft is provided with a first protruding ring that restricts the movement of the movable link, and the first protruding ring is close to the fan and is located on the output shaft on the side of the fan facing the casing. When the temperature in the casing rises, the air pressure inside the casing is greater than the outside air pressure, and the air pressure in the casing pushes the movable joint to move to the side of the casing, and the part where the elastic film is connected to the movable connection protrudes toward the side of the casing , so that the elastic membrane presents a tapered shape, and the surface area of the elastic membrane increases, which has a better heat dissipation effect on the entire casing and improves heat dissipation efficiency.
Description
technical field [0001] The invention relates to the technical field of motors, in particular to a dust explosion-proof motor. Background technique [0002] Explosion-proof motors are a type of motors with explosion-proof performance. According to different explosion-proof measures, explosion-proof motors can be classified into extinguishing type, increased safety type, positive pressure type, non-sparking type and dust explosion-proof type. Among them, the casing of the dust explosion-proof motor has a high degree of sealing to reduce or prevent dust from entering the casing. Even if there is dust entering, the amount of entry will not cause an ignition hazard. Therefore, the dust explosion-proof motor is suitable for working in a dusty working environment. [0003] Due to the good sealing performance of the dust explosion-proof motor, its heat dissipation is generally installed on the outer wall of the casing, and a fan is installed on the output shaft of the motor. heat...
Claims
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IPC IPC(8): H02K5/20H02K7/00H02K5/10H02K5/136H02K9/06
CPCH02K5/10H02K5/136H02K5/20H02K7/003H02K9/06
Inventor 卢禹诚
Owner 浙江奇志电机股份有限公司