2007年矿山机械考题(采矿)（2007 mining machinery examination (mining)）.doc

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2007年矿山机械考题(采矿)（2007 mining machinery examination (mining)）.doc

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2007年矿山机械考题(采矿)（2007 mining machinery examination (mining)）

2007年矿山机械考题(采矿)（2007 mining machinery examination (mining)） 1. Fill in the blanks (2 points per blank, 30 points) 1. Currently, the development and production of excavators at home and abroad can be divided into two categories according to the working methods of the working body Two categories: 2. The driving device of the existing coal mining machine is divided into three types according to the transmission type. 3. The hydraulic supports of the monomer are divided into and in accordance with the mode of supply. 4. The conveyor belt is divided into two categories according to the core structure and material of the conveyor belt. 5. According to power source mine electric locomotive can be divided into and; 6. The steel wire rope is divided into a wire rope according to the wire rope. 7. According to the flow direction of air flow in fan impeller, different fans are divided into and; 2. Choice (2 points per question, 10 points) 1. The stable working condition of the water pump is. H0 B HC = (0.9 ~ 0.95) H0 C HC = (0.9 ~ 0.95) H0 At present, most coal mining machines in China adopt the method to achieve traction. A has chain traction B without chain traction C 3. General emulsion pump station should be equipped with emulsion pump; A, one B, two C, 5 D, 4 4. The capacity of the working water pump should be able to discharge normal water flow within 20h. The total capacity of the working pump and the spare pump should be able to discharge the maximum amount of water in 20h, and the total capacity of the maintenance pump shall be no less than that of the working water pump. A, 24h 24h, 1/4 B, 20h 20h 1/4 C, 20h 24h 1/2 D, 24h 20h 1/2 5. The joint method of adhesive tape has mechanical connection, cold bonding method, vulcanization connection method and plasticizing connection method. You need to heat up the pressure; A mechanical connection method B cold adhesion connection C sulfide connection method D plasticization 3. Judgment (2 points per question, 20 points) 1. T