Tower crane hoisting RCV slewing controller

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1 Application

  RCV slewing controller is a tower crane hoisting slewing controller device combined of three-phase AC variable voltage control and eddy current speed control.

 After connection with the vortex torque motor and reduction box,through the potentiometer voltage instruction on the operation panel,to control the thyristor trigger conduction abgle of three-phase AC current and eddy current, so that control the rotation speed of eddy current torque motor,realize the smooth start,operation and stop of the tower crane slewing system.

2 Structure characteristic

 

(1) Application environment condition

    working temperature : -5  °C~ 40  °C

    relitive humidity : 50%( when the temperature is 40  °C)

                                  maximum 90% (when the temperature is 20  °C)

(2) Power grid quality :

     voltage continuously fluctuate no more  than  ±10%

 

3 Technical parameter

Rated voltage

50HZ,380V three-phase voltage

50HZ,AC48V one-phase voltage

Output voltage

three-phase output voltage AC 0~380V

eddy current voltage DC 0~20V

Output current three-phase output current by  optional:106A;162A;273A



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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.
Q:What type of industry does the machinery and building accessories processing belong to?
There are only three tax categories in our country: 1 consumption tax, 2 VAT, 3 special tax (agriculture). Therefore, as long as the manufacturing or processing of industrial value added tax on enterprises. It has nothing to do with the economic nature, classification and categories of an enterprise.
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: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.
Q:What are the world famous mechanical equipment exhibition?
1, the German BMW Exhibition (BAUMA) sponsored by: Messe M nchen GmbH, held every three years, has held 30 sessions, the thirty-first will be in April 2016 11-17 in the German city of Munich exhibition centre. The German international engineering machinery, building materials machinery, mining machinery, construction vehicles and Equipment Expo is the world's largest and most influential international engineering machinery, building materials machinery, mining machinery industry exhibition, every three years regularly held in Munich in germany. The fair combines science and technology, trade, information and technical cooperation
Q:What are the construction materials, components, fittings and equipment in construction?
Board: cast-in-place slab, prefabricated slab, prefabricated hollow slab, reinforced concrete slab, wood board. The wall, brick wall, concrete wall, roof parapet, wall light. Door: solid wood door, plywood door, steel door. Window: window, wooden window, Aluminum Alloy window, plastic steel window. The building is in addition to other parts of the building and construction of houses built some auxiliary components, such as scaffolding, construction with pipe thread adjuster, building rod, triangle construction support, reinforced joints etc..
Q:What functions should be achieved in mechanical structure design?
The main features of the mechanical structure design are: (1) it is a set of thinking, drawing and calculation (sometimes necessary experiments) in one of the design process, is involved in machinery design, the most specific, the largest volume of work, in the whole process of mechanical design, an average of about 80% of the time for the structure design plays an important role in the success of mechanical design. (2) the multi solution of mechanical structure design, that is, the mechanical structure that satisfies the same design requirement, is not the only one. (3) the mechanical structure design stage is a very active design link, often needs to cross repeatedly. Therefore, in the design of mechanical structure, it is necessary to understand the basic requirements of the mechanical structure from the whole of the machine
Q:Where was the construction machinery conference held in 2015?
Co organizer: BMW (Chinese) Engineering Machinery Company Limited, Shandong Lingong Construction Machinery Co, Limited by Share Ltd, Shantui construction machinery Futian leiwo international heavy industry Limited by Share Ltd, Shandong Chang Linzhu Machinery Group Limited by Share Ltd, Shandong rhinos Engineering Machinery Company Limited, Beijing Tianshun Hydraulic Technology Co., Ltd. Ji'nan the Great Wall Andy Machinery Co. Ltd., Langfang Deji machinery Polytron Technologies Inc, Tai'an Dongyue Heavy Industry Co. Ltd.
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: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.

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