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

trolley mechanism 3JXD1

Q:Military Action movie with bunch of cranes at the end?: Cranes like construction equipment or Cranes like the birds?

Q:How the cranes can stand without any tipping with huge counter weights on its back? If there is no suspended load also the crane is is still stable with huge counter weights on its back. How it can possible? Why crane is not offballencing while we adding extra counter weights on it without any suspended load?: Usually the counterweights can move back and forth on an arm. They are moved toward the crane when there is no load and away from the crane when there is a load. If the counterweights can't move, then the crane must be designed to hold (at least) the minimum counterweights in their fixed location. As the crane gets loaded, the net moment decreases, and then increases in the other direction as more and more load gets added. It is still likely that the maximum design moment when loaded far exceeds the moment due to the counterweights on an unloaded crane.

Q:Can the attached arm of the tower crane be welded?: The calculation of the attachment of tower crane mainly includes three parts: attachment rod calculation, connection calculation of attached bearing and calculation of attached frame. (1) the attachment bar calculates the attachment bar and is calculated by the compression member of the pivot shaft hinged at both ends. 1) the internal forces of the attached rod and the internal force of the connecting rod are taken as required by the instruction; if the specification does not specify, or when the spacing between the two supports connected with the building is changed, the calculation shall be carried out.

Q:what is the proper way to fold a paper crane?: Well, okorder /

Q:Do some schools of hung gar only teach (or focus on) the tiger crane form?: I don't think so, not if it is taught as a complete system, then it should offer more than just tiger/crane form.

Q:anyone can tell me the common steel tube material using for crane boom, both main chord and lattice boom. thanks !: Most aerial cranes (Erickson Skycrane) are used for tasks such as remote location work or expedious work. It takes awhile to erect a crane for one air conditioner unit to be replaced on top of a 5 story building or to replace a cable on a wire bridge. They are also widely used for fire supression.

Q:who can tell me tower crane details?: 1. Accurate positioning Kinematic limit, High-repetition-accuracy torque,weight limiter ; 2. Unique, and reliable car off-axis device and Trolley Anti broken rope Safety Device; 3.Independent of side driver's cab,its Vision is good,with a large space in the tower crane driver's cab,Using linkage console,Configuration ottoman, convenience, and comfort; 4. Machine appearance as an international pop style, beautiful and generous 5. Long boom, operating a large space, a rigid double-bar suspension, light weight, cross-section is small, air resistance is small, the leading domestic;

Q:What company makes a good engine crane I can order online?: Dont know if you have a Harbor Freight store near you, but i bought an engine crane from them this past spring , 2 ton for $100. Go to the website and find a store by you, or maybe order one on line. good luck..........

Q:Hello, i am goin in on Dec 5 to write the millwright C of Q for the 3rd time. On the test there was a question that went something like this The crane is rated 40Ton, with a boom lenght of 40ft and at an angle of 70 deg. The jib is 8ft long on a 10 deg angle. What is the sefe working load. The numbers are not correct but that is how the question is phrased. Please help me with the formula. I cannot find it anywhere.: Safe Working Load Formula

Q:Captain Kirk, TJ Hooker or Denny Crane?: Denny Crane. His acting seems more natural than the others. He is a crazy oversexed senior citizen whom everyone loves even though he frustrates the hell out of them at times. Denny Crane!!!!!! Every older man's mentor.

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