We are one of the largest and most professional crane manufacturers in China, with total sales of more than 1.6 billion US dollars last year, including sales of 11,000 sets of double-beam and gantry cranes, more than 73,000 sets of single-beam cranes, and more than 100,000 sets of electric hoist and accessories.
We have an advanced, green, whole-industry chain, intelligent manufacturing industrial park, with an investment of 370 million US dollars and more than 4,700 employees, which has been established for more than 20 years.
Overhead Bridge Crane of Single Beam KSDL-07,this is one of our top sales products,sales more than 73,000 sets every year.
This is the laser cutting machine of our workshop. This equipment will not cause scratches to the workpiece surface when cutting steel plate material of beam crane equipment. Laser cutting speed is fast, the incision is smooth and smooth, generally no subsequent processing is required; The cutting heat affected zone is small, the sheet deformation is small, and the cutting seam is narrow (0.1mm~0.3mm). The incision has no mechanical stress, no shear burrs; High machining precision, good repeatability, no damage to the surface of the material; CNC programming, can be processed any plane plan, can be a large format of the whole board cutting, no need to open mold, economy and time saving. This is also an important part of the green, advanced and intelligent crane industrial park built by our company, which improves work efficiency and provides customers with high-quality products.
Take crawler cranes as an example. The structures of crawler cranes are basically the same, all consisting of power units, working devices, slewing devices, traveling systems, transmission systems and safety devices, etc. one 1. Boom
Crawler cranes all use truss-type booms, which are steel structures used to support the hoisting wire ropes and pulley blocks. It can be pitched to change the working radius of the crane and is directly hinged to the upper rotating platform. The upper and lower sections of the boom are the basic arms, and there are multiple standard arms. According to the construction needs, the basic arms can be extended, and if necessary, a secondary boom can be installed at the top of the main boom to expand the working range. For example, the basic arm length of the QUY50 crane is 13m, and it can reach 52m after adding sections. In the early days, most sections of the boom were connected by flange bolts, and most used pin shaft connections, which were suitable for truss booms made of seamless steel pipes. The cross-section of the boom is rectangular, providing good lateral stability.
2. Hoisting mechanism
The hoisting mechanism of mechanical cranes is driven by the main transmission device through a belt clutch to rotate the hoisting drum. The hoisting wire rope on the drum is reeled in or out by the forward and reverse rotation of the drum, causing the hook to rise or fall. In hydraulic cranes, the hoisting drum is driven by a hydraulic motor through a pair of reduction gears.
3. Luffing mechanism
The luffing mechanism of crawler cranes is operated by the luffing drum to take up or release the luffing wire rope. Through the double-pulley block fixed on the double-foot bracket and the boom rope fixed at one end to the pulley block and at the other end to the pulley shaft at the top of the boom, the boom can be raised or lowered. The luffing drum of mechanical cranes is driven by the main transmission device through a worm gear reducer. The luffing drum of hydraulic cranes is driven by a hydraulic motor through reduction gears.
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