In order to reduce the size and weight of coal mine robots,and increase the walking and endurance capabilities of the robots,from the perspective of explosion-proof design,the influence of four common explosion-proof types,namely positive pres-sure,explosion-proof,oil immersion and sand filling,on the design of the robot was investigated respectively.Conducted a com-parative analysis.Taking 10 groups of randomly set typical rectangular robot cabinets as the research object,four methods of posi-tive pressure,explosion-proof,oil immersion and sand filling are adopted for explosion-proof design,and the volume and weight of the same cabinet after different explosion-proof designs are compared and analyzed.Variety.The results show that the four explosion-proof types of explosion-proof boxes are similar in size,but when the robot box size is small,the weight of the ex-plosion-proof box designed by the method of explosion-proof,oil immersion and sand filling is relatively small.As the size of the robot box increases,the weight of the positive pressure type box is the smallest,and the explosion-proof type has the largest weight.
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