Q:What is equipment manufacturing and machinery manufacturing? What's the difference between them?

The equipment manufacturing industry covers Yuan Jian practice (classification of thinking. The development of equipment manufacturing industry of electromechanical product development and innovation, 2001.5 (total seventieth)) that can mainly based on product knowledge content and technical difficulty, necessity supplemented by direct state control, equipment will be divided into five types, development principles and countermeasures accordingly considering the difference of equipment manufacturing industry.

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:Where are the mechanical pressurization air supply facilities set up?

When the smoke proof staircase and antechamber antechamber, fire elevator or common antechamber parts can be opened outside the window, can use the natural ventilation, resulting in a stairwell with or common antechamber in the use of natural smoke exhaust with pressurized air supply arrangement of diversified combinations, and the two exhaust can not be shared.

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 kind of electrical equipment do you have? What are the main components of each device?

Electrical equipment, electrical parts, electrical equipment, electrical components: mainly refers to other construction equipment matching, power driven, electrical heating, electrical lighting, and other direct consumption of electricity and into other parts of energy. Such as: motor and electric heater and start control equipment, decorative lighting lamps and the switch socket, television communication and intelligent engineering for power supply and transformation or environmental protection dust and kitchen fume and other special DC power supply etc.

Q:Where does Heilongjiang do the most construction machinery?

All of the industry designated product range is roughly the same as that of China engineering machinery and other countries are also increased the railway engineering machinery, forklifts and industrial handling vehicles, decoration machinery, elevator, pneumatic tools and other industries.

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:What functions should be achieved in mechanical structure design?

The design of mechanical structure is based on the overall design, according to the principle of the program to determine and draw a specific structure, in order to reflect the required functions. Is the working principle of the abstract concrete into some parts, the specific content in determining the structure of the material, shape, size, tolerance, heat treatment and surface conditions at the same time, we must consider the process, strength, stiffness, accuracy, and other parts of the relationship between each other and other issues. So, the direct product structure design is the technical drawings, but the design work is not a simple mechanical drawing, drawing only express design language, specific integrated technology is the basic content of structural design.

Q:What are the safety protection equipment, machinery and equipment, construction machinery and accessories for construction enterprises?

For Turner, fitter, main work gloves, hats, goggles for welder, etc.; there are gloves, shoes cover, goggles, insulated shoes etc.;...... ;

Q:What are the mechanical drawing software?

The plane is mainly CAD and CAXA, there are some non mainstream mechanical engineer what, mainly engaged in your spare parts of machinery industry, roughness, form and position tolerance requirements, recommendations for CAXA, which symbols are readily available, there are standard parts library, mechanical symbols library etc..