trolley mechanism 3JXD1

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Introduction

On the basis of absorbing advanced foreign technology, our company developed the JXD trolley luffing mechanism independently for small and medium-sized tower cranes.

This series of trolley mechanism consists of electromagnetic double-speed change-pole motor, semi-concealed planetary reducer, drum, frame and other components.Its characteristics include compact sturcture, high driving efficiency, and low noise, safe and reliable braking, accurate positioning, pleasing in appearance and so on. When users have higher requirements to the trolley running, variable- frequency speed regulation motor with the same interface and relevant electric contol system may be changed to form the variable-frenquency speed regulation trolley mechanism.

Performance parameters

Model:3JXD1

Motor Power(KW):3.3/2.2

Rated single rope tension (N):3400

Single-rope linear velocity(m/min):40/20

Rope capacity(m):59

Wire rope diameter(mm):7

Relevant parameter of the suitable tower crane

--Max lifting load(t):8

--Max crest(m):61

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Q:What is a tower crane without a collector?
Once again, because the collector is using carbon brush and copper ring contact, the tower crane work in the sway of the impact is too large, easy to cause carbon brush and copper ring arc between burning. Combined with this reason, today's tower cranes do not use collector. The drawback is that the tower crane can not be one-way one-way rotation. So now the use of rotary limiter, set the tower one-way rotation can only turn 540 degrees, want to turn, can only turn in the opposite direction.
Q:All types of jack up cranes. How is the maximum lifting torque converted?
The moment of the tower crane is set up by the factory, and can not be changed. How do you want to convert it?If the nominal torque is converted to kn tons, 1 tons is equal to 9.8 kn.
Q:What are the construction cranes? 50
The most common are tower cranes, elevators, and freight lifts. The big construction enterprise also has the track type tower crane
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:How to calculate the pouring and maintenance of tower crane concrete in valuation?
Valuation, tower crane concrete foundation pouring and maintenance costs are included in the tower crane rental costs, not separately assessed.
Q:Lifting tower crane tower more than 45 meters, the demolition cost and how to adjust the field Sinotrans transportation fees?
Self lifting tower crane tower 45 meters high to prevail, such as height of over 45 meters, each increased to 10 meters (less than 5 meters, excluding) demolition costs increase 20%, off-site transportation costs increased by 10%.
Q:What kind of tower cranes are available? How about the scope of all kinds of tower cranes?
Tower crane is divided into fixed tower crane, mobile tower crane, jack up tower craneThe mobile tower crane is divided into track type, tire type and automobile typeThe jack up tower crane is divided into two parts: internal climbing type and attached typeUsage: loading and unloading concrete by hanging tank for general construction and installation
Q:What are the parts of a tower crane? What are their main functions?
Jacking frame: placing slewing mechanism, when lifting tower top, bearing the weight of tower crane balance arm, main arm and tower cap.Standard section: support the weight of tower crane itself and lift the weight of heavy load, and resist the overturning moment of tower crane.Institutions include the followingLifting mechanism: lifting heavy objects.Luffing mechanism: lifting the car to change the rotation center distance.: the upper part of the slewing mechanism of tower crane (including the main arm and balance arm and tower cap) around the rotation center of rotation.Lifting mechanism: tower crane lifting, the upper part of the tower crane elevated hydraulic power system.Walking mechanism: the crane can walk on the track.OtherDrivers’ RoomElectric boxLinkage tableA foundation bearing platform or trackOther safety devices
Q:What is the difference between lifting height of tower crane and independent height?
Attachment can be understood as the kind of tower crane tied to a building. Without it, the tower will fall, and its strength, stiffness and stability can not be satisfied.
Q:When building tall buildings, where is the bottom of the tower crane installed?
It's just a little bit needed, and you're right!! As long as the requirements to ensure verticality, no problemBuilding technical requirements, such as Perpendicularity Error of not more than 3 millimeters per 100 meters, can be guaranteed by the building.

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