General parts: is a national standard or international standards as the basis for the production of parts known as general-purpose parts, which can be broadly divided into the following categories:
Transmission: gear transmission, chain transmission, belt transmission, worm gear transmission, screw transmission;
Shaft: couplings, clutches, Rolling bearings, plain bearings;
Connections: bolts, keys, splines, pins;
Other: springs, racks, boxes ......
Specialized parts
Specialized parts: a kind of parts produced by their own machine standards, there is no corresponding product in the national and international standards. The parts are called specialized parts, for example, a factory for a piece of equipment and special production of some parts.
Question 2: What is included in the basic general mechanical manufacturing General mechanical manufacturing includes the main courses: mechanical drawing, metal technology, electrical and electronic technology, theoretical mechanics, mechanics of materials, mechanical principles, mechanical parts, mechanical CAD, metal cutting machine tool design, metal cutting principles and tool design, mechanical manufacturing process and jig design, CNC machine tools. Mechanical design and manufacturing capabilities, the ability to use professional knowledge of mechanical equipment and industrial equipment design and manufacturing. According to the requirements of parts processing, reasonable selection of equipment, tools, gauges, machining process parameters, the ability to reasonably formulate parts processing procedures. Have a certain degree of CNC technology application capabilities and computer-aided design and manufacturing capabilities. In the machinery manufacturing industry engaged in machinery manufacturing process design, tooling design, non-standard equipment design and production technology management of applied senior engineering talent.
Question 3: What are the general equipment used in various sectors of the national economy for the manufacture and maintenance of material and technical equipment required for a variety of production equipment known as general equipment. For example, metal cutting machine tools and forging equipment, they are not only the creation of the national economy material and technical equipment of the mechanical industry's main production equipment, but also the national economy of the material production sector for the maintenance and repair of its production of technical equipment must be worn with the technical back-up equipment.
"Fixed Asset Classification and Code" (GB/T14885-1994) provides that: the first two code 06-12 for general equipment
Question 4: What are the general mechanical equipment? What is the general mechanical equipment in the machinery processing industry, general mechanical equipment, mainly lathes, milling machines, planers, grinders, drilling machines and so on. Now with the development of processing technology, wire cutting, EDM, CNC processing, laser processing, engraving machine has gradually become a powerful complement to the general mechanical equipment.
Question 5: What are the general equipment included in the assets of the institution (a) Office furniture. Including desks and chairs, ordinary chairs, sofas, filing cabinets, etc.;
(B) office automation equipment. Including computers, printers, photocopiers, digital speed printer, projectors, conference room amplification equipment, etc.;
(C) air conditioning equipment. Including split air conditioners, window air conditioners;
(d) Other equipment. Including shredders, scanners, fax machines, digital cameras, digital video cameras, televisions and disk players, etc.
Questions.
Question 6: What are the main differences between general mechanical parts and special mechanical parts General parts
General parts: a national or international standards as the basis for the production of parts known as general-purpose parts, which can be broadly divided into the following categories:
Transmission: gear drive, chain drive, belt drive, worm drive, screw drive;
shafts
Transmission: gear transmission, chain transmission, belt transmission, worm transmission, screw transmission;
Shafts: couplings, clutches, rolling bearings, plain bearings;
Connections: bolts, keys, splines, pins;
Other: springs, racks, boxes ......
Specialized parts
Specialized parts: a kind of parts that are produced by their own machine standards and have no counterparts in the national standards and international standards. International standards have no corresponding products in the parts known as special parts, for example, a factory for a piece of equipment and specializing in the production of some parts.
Question 7: What is general equipment? What is specialized equipment? You first need to figure out the fixed assets of each category of each month of the end of the month of the cumulative amount is how much, in addition to the plant in accordance with which depreciation method for depreciation, usually with the average life method or accelerated depreciation method, but also useful to the sum-of-the-years method, and so on, in addition to each asset class is different, different depreciation years, the provisions of the first, the general part of the equipment depreciable life
1. machinery and equipment 10-14 years
2.
2. power equipment 11-18 years
3. conduction equipment 15-28 years
4. power transmission equipment 8-14 years
5. automation control and instrumentation
automated, semi-automated control equipment 8-12 years
electronic computers 4-10 years
General test Instruments and equipment 7-12 years
6. industrial furnaces 7-13 years
7. tools and other production appliances 9-14 years
8. non-production equipment and appliances
equipment and tools 18-22 years
Television, photocopying machines, word processors 5-8 years
Second, the depreciation of the depreciation of the part of the equipment
9. metallurgy, semi-automatic control equipment 8-12 years
Electronic computers 4-10 years
general testing equipment
6.
9. Specialized equipment for metallurgical industry 9-15 years
10. Specialized equipment for electric power industry
Power generation and heating equipment 12-20 years
Transmission lines 30-35 years
Distribution lines 14-16 years
Transformer and distribution equipment 18-22 years
Nuclear power equipment 20-25 years
11. Specialized equipment for the nuclear power generation 20-25 years
12-15 years
13.
11. machinery industry equipment 8-12 years
12. petroleum industry equipment 8-14 years
13. chemical and pharmaceutical industry equipment 7-14 years
14. electronic instrumentation and telecommunications industry equipment 5-10 years
15. building materials industry equipment 6-12 years
16. textiles, light industry equipment 6-12 years
16. Textile, light industry equipment 8-14 years
17. Mining, coal and forestry equipment 7-15 years
18. Shipbuilding industry equipment 15-22 years
19. Nuclear industry equipment 20-25 years
20. Public utility enterprises equipment
Tap water 15-25 years
22. Buildings
Hydroelectric dams 45-55 years
Other buildings 15-25 years
Question 8: What are the classifications of electromechanical equipment? The role of electromechanical equipment is indispensable in production and life. One of the most widely used electromechanical equipment is metal cutting machine tools, lifting equipment. There are many types of electromechanical equipment, to master a certain knowledge of the classification of electromechanical equipment, to help us systematically understand the electromechanical equipment, or then the actual use, to be able to grasp in a timely manner. Generally according to the use of electromechanical equipment can be divided into three categories: industrial electromechanical equipment, information electromechanical equipment, people's livelihood electromechanical equipment. 1, industrial electromechanical equipment is used for the production of mechanical and electrical equipment. For example, ordinary lathes, ordinary milling machines, CNC machine tools, wire cutting machines, food packaging machinery, plastic Gan. Machinery, textile machinery, automated production lines, industrial robots, motors, furnaces, etc., all belong to the industrial class of electromechanical equipment. 2, information class of electromechanical equipment is used for the collection, transmission and storage of information processing of electronic and mechanical products. For example, computer terminals, communication equipment, fax machines, printers, copiers and other office automation equipment, etc., are information-class electromechanical equipment.3, livelihood-class electromechanical equipment is used in the field of people's lives of electronic machinery and mechanical and electronic products. For example, VCD, DVD, air conditioning, refrigerators, microwave ovens, automatic washing machines, automotive electronic products, 9 therapeutic equipment and fitness and sports machinery and so on are people's livelihood electromechanical equipment. In addition, according to the national economy industry classification and code, the national industrial and agricultural product classification and code and other national standards of classification, classification of electromechanical equipment is divided into general mechanical class, general electrical class, general, special instrumentation class, special equipment class four categories. 1, general mechanical class machinery manufacturing equipment (metal cutting machine tools, forging and pressing machinery, foundry machinery, etc.); lifting equipment (electric hoist, loading and unloading machines, all kinds of), lifting equipment (electric hoist, crane, elevator, etc.). Cranes, elevators, etc.); agriculture, forestry, animal husbandry, fishery machinery and equipment (such as tractors, harvesters, a variety of agricultural and sideline product processing machinery, etc.); pumps, fans, ventilation mining suction equipment; environmental protection equipment; carpentry equipment; transportation equipment (railway vehicles, automobiles, Kangtuo car, ships, aircraft, etc.), etc.; 2, general electric power station equipment; industrial boilers; industrial turbines; motors; power tools; electrical Automation control devices; electric furnaces; electric welding machines; special equipment for electricians; electrical test equipment; daily appliances (refrigerators, air conditioners, microwave ovens, washing machines, etc.), etc. 3, general, special instrumentation category automation instrumentation, electrical instrumentation, specialized instrumentation (meteorological instrumentation, seismic instrumentation, teaching instruments, medical instruments, etc.); composition analysis instrumentation; optical instrumentation; testing machines; experimental instrumentation and installation T etc.; 4, special equipment category
Question 9: What are the main differences between general mechanical parts and special mechanical parts? 10 points General mechanical parts and special mechanical parts of the main difference between a general, a special. Commonly explained as: universal refers to a wide range of uses, such as standard nuts, M3, M6, M8, these are general-purpose. And there are some foreign domestic manufacturers, in order to make their own Tetan, characteristics. Specialized in adding the word special, so that the applicability of the part is reduced, thus reflecting its unique professionalism.
Question 10: What are the main aspects of machinery manufacturing machinery manufacturing is very broad, spacecraft, aircraft, warships, tanks, artillery can be said to belong to the category of military enterprises, there is machinery and equipment, vehicles, construction machinery, electric power equipment and so on belong to the machinery manufacturing. Where the mechanical equipment will be processed into various types of raw materials and finished equipment through the mechanical equipment of the enterprise are machinery manufacturing industry.