trolley mechanism 4D3V2

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Introduction

According to the France Potain Companys mature technologies and requirements, the series of the mechanism of the buggy is designed, and it is consitituted with the three-phase asynchronous motor torque, the inner planetery reduction gear, wound roll, rack, and other componets.Through voltage regulation and an eddy current brake role can be low, medium, high rate, the electrical own electromagnetic disc brake, a brake steady speed, brake safe, reliable, accurate positioning, the most suitable for Potain tower crane series and replace imported products.

Performance parameters

Model:4D3V2

Rated stalling torque of torque motor(N.M):75

Rated single rope tension (N):2500

Single-rope linear velocity(m/min):0-58

Rope capacity(m):46

Relevant parameter of the suitable tower crane

--Max lifting load(t):5

--Max crest(m):48

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Q:What is the difference between a tower crane and a jack up tower crane?
Tower cranes, because there is no running mechanism, so tower crane can not do any movement. Fixed tower crane can be divided into the tower height invariant and Jack up. That is, the jack up tower crane is a kind of fixed tower crane.
Q:What are the safety devices for the horizontal arm self lifting tower cranes?
(6) the crane of lightning protection and anti electromagnetic wave sensing device shall be equipped with lightning protection device and anti electromagnetic drape induction measures according to the actual situation and shall be equipped with crane with a hinge height of more than 50m at the root of the boom. (7) the tower crane should be installed to prevent the rotary overload limit torque coupling (8) anti off rope device to prevent the wire rope from the working position (9) rope breaking resistant device to prevent car luffing rope break free sliding trolley (10) anti broken shaft device to prevent car car wheel shaft broken after the fall (11) brake parts that is the work device is a safety device
Q:Who is responsible for the construction of the pile foundation of the tower crane?
In fact, in the long run, in a word, what the construction site is finally all party a pay, just clearing the count.
Q:Tower crane and construction hoist service life? What are the norms and standards? How to detect?
According to Hangzhou quality safety supervision station (2011) No. 56 document:Six, strengthen the use of longer construction crane management1, more than the required number of tower cranes and construction hoist should be qualified units for security assessment, the specific years with reference to the following requirements.Tower crane: 630KN.m (excluding 630KN.m), factory more than 10 years of age (including 10 years); 630KN.m1250KN.m (excluding 1250KN.m), factory more than 15 years of age (including 15 years);
Q:What is the rental price of a tower crane? General site rental more, but also buy more? Ask the industry for an answer?
The rental price of tower crane consists of the cost of advance and retreat yard and the monthly rent of tower crane. The cost of the advance and retreat yard includes the loading and unloading costs, transportation costs, installation costs and monitoring expenses of the tower crane. The rent of the tower crane includes the cost of tower cranes, the cost of tower crane maintenance and the wages of the crane drivers. At present, many sites are using lease way to use tower cranes, so that the occupation of the site will be less rent, investment will be relatively small.
Q:What should the sub contractor do before the installation of the bridge crane in the workshop?
Baidu search [tower crane tower demolition, lowering section safety technical disclosure]. If it is installed, remove the "two words" to "installation", and other contents are adjusted slightly.
Q:Tower crane installation, wind speed is greater than 12m/s, wind should stop operation,
This is not on the project department climbed to tower crane to measure wind speed, regardless of height, is listening to the local meteorological station forecast, more than five winds, should stop working.
Q:Which is the main basis for the disassembly and assembly process planning of tower cranes?
.0.11 tower cranes should be prepared before the installation of special construction program, and should include the following contents:1 project overview;2 installation location, plane and elevation;3 types of tower cranes and technical parameters of performance;4 basic and attachment device settings;5, climbing conditions and adhesion nodes detail;6 installation sequence and safety quality requirements;7 weight and suspension position of main mounting parts;8 installation of auxiliary equipment type, performance and layout;9 power settings;10 construction personnel allocation;11 rigging and special tools;
Q:How high the tower crane needs to be installed with the wall pole. How is it stipulated in the national standard?
Beyond the maximum independent height of the tower crane design, a wall attaching rod shall be installed
Q:What are the components of a tower crane? What are its main technical parameters? What is lifting torque?
Part: foundation, tower, wall unit, excessive section, lifting mechanism, rotating mechanism, lifting mechanism, the lifting arm, a balance arm, electrical control, safety protection device etc..Main technical parameters: maximum lifting weight, amplitude and maximum amplitudeLifting torque = magnitude X maximum amplitude lifting

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