Q:What are the construction materials, components, fittings and equipment in construction?

: construction engineering materials, components, fittings, equipment, each refers to: 1, engineering materials: engineering materials mainly refers to raw materials. Such as: sand, stone, steel, etc., there is no processing materials. 2, structural parts: the main structure here is the main structure of the building, the two structure and other accessories. Most of the semi-finished products and the structure of part of the installation accessories, such as: beam beam, continuous beam, beam, beam, cantilever beam, curved beam; steel, timber, concrete beam.

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 mixing arms of the concrete mixer?

Mixing arm concrete mixer is a component of the mixing arm itself and divided into lateral mixing arm (positive and negative points), stirring arm (also have positive and negative points), stirring arm below is the bearing seat connected, connected with 4 sets of high strength bolts with stirring arm. The top is equipped with wear-resistant mixing blades, connecting with mixing blades, high-strength bolts 2 sets. In addition, some manufacturers have designed mixing side bonded shaft swivel, is installed in the interval between the stirring arm fixed and rotated in two ways.

Q:Construction Engineering, moving equipment and stationary equipment, respectively

Moving equipment refers to the rotating equipment driven by a drive (i.e., equipment with energy consumption), such as pumps, compressors, fans, etc. the energy can be electric power, pneumatic power, steam power and so on. Moving equipment refers to the main components of the movement of machinery, such as various filters, crushers, centrifuges, rotary kiln, mixer, rotary dryer and fluid conveying machinery

Q:Where are the hanging baskets for the building?

It is strictly prohibited to use hanging baskets as vertical transport facilities for personnel and materials; no staff member is allowed to climb from a basket to a B basket

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

This depends on the erection of the height of the general 3 steps and within 5-6 yuan a meter, assuming the erection of 4.5 meters high, 22.5-27 yuan a square. This is calculated in accordance with single-layer, the higher the more expensive, 9 meters in 65 yuan or so square. In accordance with the establishment of meters, in accordance with the erection of the volume of the calculation.

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

Appendix B Construction Engineering Division (sub branch) engineering, sub project division, B.0.1 Construction Engineering Division (sub branch), engineering, sub projects can be divided into table B.0.1. Table B.0.1 division number of construction works, sub works and sub projects

Q:What type of industry does the machinery and building accessories processing belong to?

Every industry has average tax rate, the contribution of each this argument does not exist, the industrial enterprise is nade VAT. The more value-added products you pay more.

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

At all levels of production safety responsibility system, mainly refers to: the legal representative of the safe production responsibility system; the responsible person in charge of safety production safety responsibility system; the technical director (Chief Engineer) production safety responsibility system; the safety department (Department) Changan production responsibility system; responsibility for production safety, the project manager; specifically (and) post safety responsibility system for production safety; construction technician (technician), safety production responsibility system; 8 class (Group) Changan production responsibility system; workers, production safety responsibility system. Departments responsible for production safety system, mainly in accordance with the functions of enterprises set up departments, the corresponding formulation of the responsibility system for safety in production.

Q:How are the machine parts stacked?

Classification ah! Put small pieces of different sizes and functions into boxes and attach labels; larger items can be placed outside in a certain order (for example, function, length, value, etc.)