Showing posts with label tower crane for sale. Show all posts
Showing posts with label tower crane for sale. Show all posts

Friday, September 11, 2015

Tower crane parts to introduce



     Tower Crane applications in the construction industry is now essential to bring a lot of convenience to the construction site, while its security is the most important issues and problems. So the quality of crane has become a top priority, can not tolerate the slightest careless. Now a brief look at the crane structure, many different types of cranes, the basic structure is unchanged under normal circumstances. We are using multi-section steel connected together. The focus problem is in its joints. That is the core of the project, part of the connection if the crane is a problem, then everything is equal to "zero."

    Crane bolt: fastening a sophisticated product, mainly used to effectively connect the crane docking site. Thus ensuring the normal operation of the crane, and high efficiency operation.
    Material: Normally it is alloy steel processing, taking into account their hardness and toughness on the current I will present alloy steel we usually use 40Cr. All aspects of its performance are able to meet national standards. It was often used.

Some repair and maintenance measures of crane accessories



Machinery and equipment maintenance and repair, brakes agencies should always be checked and gap adjustment brake shoes and brake drum, ensure flexible and reliable. In the friction surface, there should be no dirt exists, in case of contamination must be washed off with gasoline or thinner. Gearbox, transmission, gear and other external part of lubricating and hydraulic oil according to the lubrication requirements of the table. Pay attention to check whether the ministries broken wires and loose rope shares phenomenon. Exceeds the relevant provisions must be renewed immediately. Wire rope maintenance should be in strict accordance with GB5144-85 regulations. Where open gear must have a protective cover.
Always check the connections ministries, if loose should be tightened. The tower should check the tightness of bolts at the tower pressure, all connections must have a little shaft cotter pin, and the need to open fully. Always check whether the normal operation agencies, with or without noise, if found faulty and must be immediately removed. When installing, removing, and adjust the rotation mechanism, to be taken to ensure that the center line and the center line of the rotary mechanism gear reducer parallel, its engaging surface not less than 70%, meshing clearance to fit.
Tower crane shall carry out regular inspection, maintenance and repair, transmission parts should have enough oil, for wearing parts must always check, repair or replacement, bolt on machinery, especially frequent vibration parts such as the tower connecting bolts should check whether loose, loose if tightened or replaced if necessary.

Wednesday, September 2, 2015

How to select tower crane standard section



     Standardsselection is an important part of the tower crane , how to buy at the time of purchase is important , first of all look at the quality of the material is not steel , then there is not a big factory to see the regular manufacturers , in addition there are a few considerations in the purchase process this relatively simple method of identification , primarily by observing .
First, look at the degree of convergence is good, each link is flexible, whether lubrication, if rust or each convergence point appears relatively slow , so it is best not to buy such a house is generally a time more often , and usually do not how to maintain, so be careful the selection criteria section .
Second, look at the production is smooth and delicate, and if so, this is generally more sophisticated , processing and other aspects are in place, such as standard deviation crane standard section will not .
Good quality is the primary consideration when purchasing , then there is inevitable considering the price , because the cost savings are to be considered , each manufacturer's prices may vary , so choose cost-effective but also ensure the quality of the manufacturers in very critical , cost-effective first refers to the direct price is not too high , not least the proposed election , this is difficult is difficult to ensure the quality , look at the second sale, in after-sales maintenance support that can compare fly .
Unique provide free after and sale service in 24 hours.If you have any quesition,you can contact our sales.Welcome every customers visit our site:http://www.towercranechina.com




Application of tower crane accessories attached to the wall and the rail clamping tongs device



    When the tower crane special nature of the project needs to change the length of the attached rod, angle, the strength, stiffness and stability of the attachment device to check, to ensure that no less than the original design safety.
Car under heavy load have to sneak car trend. This is mainly boom set aside on the elevation is not enough; or is luffing mechanism ineffective braking; or is a traction rope suddenly fracture. Under heavy load to the outside of the car will greatly increase the load torque, there may be an accident, so it is an accident.
Hydraulic lifting beam and climbing claw lap is not in place, in the top attack scattered risk. Track type attachment type for use, must increase of bearing capacity of the foundation of the track and cut off the power of walking mechanism. When attached to a building, its stress intensity must meet the design requirements. Check the application of theodolite tower perpendicularity attached, and adjust.
The arrangement, each device attached to the wall is perpendicular to the distance and wall device should be in accordance with the instructions provided. Crane accessories, for you to provide replacement of defective parts -- parts of each part of the crane in operation after long time exposed to the sun and rain, labor, it is inevitable there will not be "strain" phenomenon. At this time, the replacement of faulty parts has become the top priority of the work. The replacement of tower crane parts, to special post operation, and must stop operation. When stopping, not convenience and with load, and the ground should also draw a safe area, exclusion prohibited entry. Application of wall device accessories and tower above is the rail clamping tongs.


Friday, August 28, 2015

Some repair and maintenance measures of crane accessories



Machinery and equipment maintenance and repair, brakes agencies should always be checked and gap adjustment brake shoes and brake drum, ensure flexible and reliable. In the friction surface, there should be no dirt exists, in case of contamination must be washed off with gasoline or thinner. Gearbox, transmission, gear and other external part of lubricating and hydraulic oil according to the lubrication requirements of the table. Pay attention to check whether the ministries broken wires and loose rope shares phenomenon. Exceeds the relevant provisions must be renewed immediately. Wire rope maintenance should be in strict accordance with GB5144-85 regulations. Where open gear must have a protective cover.
Always check the connections ministries, if loose should be tightened. The tower crane should check the tightness of bolts at the tower pressure, all connections must have a little shaft cotter pin, and the need to open fully. Always check whether the normal operation agencies, with or without noise, if found faulty and must be immediately removed. When installing, removing, and adjust the rotation mechanism, to be taken to ensure that the center line and the center line of the rotary mechanism gear reducer parallel, its engaging surface not less than 70%, meshing clearance to fit.
Tower crane shall carry out regular inspection, maintenance and repair, transmission parts should have enough oil, for wearing parts must always check, repair or replacement, bolt on machinery, especially frequent vibration parts such as the tower connecting bolts should check whether loose, loose if tightened or replaced if necessary.