Q:How are buildings, installations and materials divided?

Provisions on the division of equipment and materials for engineering construction? [answer] the division of equipment and materials in engineering construction is directly related to the reasonable division of investment structure, budget preparation and calculation of construction output value. In order to reasonably determine the project cost, strengthen the investment in the process of construction and management, the equipment and materials in the engineering construction is unclear, especially the universal controversial common problems and put forward the principle of division of fifteen copies of "national unified installation project budget quota" of the equipment and materials are divided, the provinces, autonomous regions and municipalities directly under the central government and the relevant departments of the State Council, the Department should be combined with the local situation, formulate rules for its implementation, and report to the Ministry of construction for the record.

Q:Mechanical bearings, all types? Roughly

Spherical roller bearings have two raceways in the inner and outer ring raceways between spherical assembly, a drum shaped roller bearings. The center of curvature of the raceway of the outer race is consistent with the center of the bearing, so it has the same self-aligning function as the self-aligning ball bearing. When the axle and shell are bent, the axial load in two directions can be automatically adjusted. Radial load capacity, suitable for heavy load and impact load. Inner diameter is tapered bore bearings can be installed directly. Or the use of tight sets, the demolition cylinder installed on the cylindrical shaft. The cage uses a steel plate holder, a polyamide forming cage and a copper alloy car holder.

Q:What are the details of construction machinery parts in sand casting?

(3) equipped with fittings, installation type air switch and air shower room installed in the furnace. (2) all kinds of vehicle tracks, transmitters, differential pressure and buttons are all materials other than the equipment body. (3) rotating filter network circulating water system for equipment, induction phase shifter, manhole and other various products embedded parts, clean bench, meter, scientific research and other functions of the machine, and pipeline safety device, railing, peep hole, ventilation air heater (1):

Q:What is a door rack for a construction site? How high is it generally?

Construction machinery network learned that the door scaffolding in our country production and use of time is not long, the scaffolding developed by the various research institutions, self-contained, and not common, varieties, specifications and diverse. Some factories copy foreign products and use the imperial size.

Q:What are the sub projects of a construction project?

Lime soil, sand and gravel foundation, geosynthetics foundation, fly ash foundation, dynamic compaction, foundation grouting, preloading foundation, vibroflotation foundation, jet grouting foundation, cement mixing pile foundation, soil and lime soil compaction pile foundation, cement fly ash gravel pile, cement soil pile foundation. Based on sand pile foundation

Q:Construction machinery production need to deal with what documents?

Construction machinery production needs for documents are: first, the construction enterprise safety production license application form 1, form three copies; 2, fill in the application form for details of the "instructions" application form "; 3, the legal representative of the enterprise statement" column should be the legal representative signature, enterprise official seal;

Q:The building electrical iron pipe and the pipe line fixing member connected to what is called, what is called the iron pipe and the 86 fixed part of tin

Pipe or direct protection, construction of special operation personnel of construction electrician training materials, focus on the "construction of special operations personnel management regulations", "construction of special operations personnel safety technology assessment program (Trial)", "construction of special operations personnel safety operation skills examination standard (Trial)" and other relevant provisions safety, technical knowledge and skills to master for construction electricians were explained, the book has 10 chapters, including: basic knowledge, common low-voltage electrical appliances and Motor City, power supply and grounding earthing protection system.

Q:How are the machine parts stacked?

Then there is a point to note, that is, from there to get used, must be put back where, so that will be organized, all things are owned by you, it will not mess.

Q:What are the mechanical drawing software?

The 3D map only contact with SolidWords and Pro/E, Pro/E is better than Solidwords in general, but Solidwords is very simple to use, see Help tutorials you can learn to draw a three-dimensional map is not particularly complex easily to estimate a few days is enough. But any one of the two kinds of software, want to do not understand the words, expert advice is not really easy. UG and MasterCAM haven't touched much, but I've heard that it's suitable for processing stereogram.

Q:Definition of large mechanical equipment?

Usually, crane hoisting (make things up and down movement), operation mechanism (the mobile crane), luffing mechanism and slewing mechanism (the horizontal movement of goods), plus metal mechanism, driving device, control device and the necessary auxiliary assembly.