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:Building materials, equipment, components and fittings products must have "three certificates" is what cards?

Product qualification certificate means the qualified certificate, qualified label or qualified seal issued by the manufacturer to indicate the quality of the products manufactured by the factory and qualified on the package of the product or product. This is the producer's guarantee of the quality of its products, and also the obligation of a product to be stipulated by the law.

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

1 、 electrical equipment part of electrical equipment mainly refers to: substation and distribution of power equipment and local scattered power, lighting distribution box. Such as: dry type power transformer, high voltage and low voltage power distribution cabinet, control the use of DC cabinet (with battery), standby uninterruptible power supply cabinet, lighting distribution box, power distribution box (cabinet), power factor capacitor compensation cabinet and standby diesel generator etc.. The utility model is characterized in that the rated voltage is mostly 10KV380V/220V by the combination of independent functional electric components, and the voltage is only 24V or 12V in the control system only.

Q:What measures can effectively reduce the construction accident rate?

Hefei construction workers training _ limited energy or hazardous substances: conditions of actual technical and economic constraints, some risk sources can not be eradicated, then they should try to limit with energy or hazardous substances, reduce the risk of. Reduce the amount of energy or dangerous substance.

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:Changsha Sanlian Building Machinery Fittings Factory

The company in Changsha Hongdun business online can not find, provided by his address: two Changsha section of Xingsha Economic Development Zone Yuan Ming Road, I checked 114 specially call 12580 to booking the hotel near the road, not the road. Definitely a liar.

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

The distribution of the construction site, construction machinery and electric hand-held electric tools, lighting, construction site construction site: risk factors and lightning protection, the construction site of common electrical tools and instruments, the construction site of the electricity management, common electrical fault, accidents and accident cases.

Q:What are the main functions of construction equipment monitoring system?

The total of the console cameras and auxiliary equipment (such as camera, PTZ, shield) control generally adopts the bus mode, a control signal to the camera near the terminal in the terminal box decoding, decoding box will total console from the control signal encoding solution, a control action command signal, a variety of actions to go camera control and auxiliary equipment (such as lens zoom, pan rotation etc.). In the case of some cameras that are close to the control center, in order to save money, the command signal, which is the "on or off" signal, can also be sent directly by the console. In short, according to the composition of the system and requirements, can be considered in order to complete the overall console design requirements or order requirements.

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?

Personally, CAD is suitable for large machines or buildings, and CAXA is the real machine industry's universal software, and can also save drawings in various formats.