News

What are the main force-bearing mechanisms of hoisting machinery?

Time:

2021-08-31 10:27

The main force-bearing mechanism of the crane machinery includes the lifting mechanism, the running trolley, the main beam and other parts. The force of each part of different cranes is also different. Let's learn about the composition and working principle of the force mechanism:

1. Lifting mechanism

The lifting mechanism is composed of hydraulic motor, reducer, drum, wire rope and pulley block. The hydraulic motor provides power support for the hoisting mechanism and is the power source of the entire hoisting mechanism. The reducer can reduce the running speed of the hydraulic motor, so that the lifting mechanism can run smoothly without being too fast or too violent. The reel can make the wire rope scale in an orderly manner, and the wire rope can be wound in and out.

When the hoisting mechanism is working, the hydraulic motor transmits power with the help of the reducer, and the low-speed shaft of the reducer pulls the wire rope out of the reel or shrinks it in, and drives the hoisting mechanism to move up and down through the pulley block. The lifting and lowering of the hoisting mechanism is determined by the running direction of the motor, and the motor can be stopped and controlled by means of a ratchet stopper.

2. Telescopic boom

The telescopic boom is one of the main force-bearing mechanisms of the truck-mounted crane, and the luffing action is carried out by changing the performance of the hydraulic cylinder. The load on the telescopic boom includes the lifting load, the weight of the telescopic boom, the inertia during the rotation and the resistance caused by the wind.

When analyzing the force of the telescopic boom, the self-weight energy of the boom can be analyzed as evenly distributed on the boom, and the center of gravity can also be analyzed as the hinge point at the root and the top part. When working in the open air, especially the crane with a longer telescopic boom, the wind load will be larger. General analysis, it can be considered that the telescopic boom only receives the wind load force on the side and back of the boom.

Previous

none

The use and maintenance of the crane during the break-in period

Next

Previous

none

Next

The use and maintenance of the crane during the break-in period

Related

What are the main force-bearing mechanisms of hoisting machinery?

2021-09-15

The main force-bearing mechanism of the crane machinery includes the lifting mechanism, the running trolley, the main beam and other parts.

Construction machinery develops in the direction of environmental protection and informatization

2021-09-15

According to the analysis of industry insiders, after entering the 21st century, in order to achieve the strategic goal of global sustainable development, human beings began to develop environmentally friendly construction machinery products, which will be the mainstream of the development trend of construction machinery at home and abroad in the future. more profound meaning. The design of mechanical products takes into account the requirements of environmental and ecological development, which is a change in the design concept of mechanical products, and a correction and supplement to traditional design.

The use and maintenance of the crane during the break-in period

2021-09-15

After the crane leaves the factory, it is generally stipulated that there is a running-in period of about 60 hours (some are called the running-in period), which is stipulated by the manufacturing factory according to the technical characteristics of the crane in the early stage of use.

TD PUMPS

We are dedicated to the design, production, manufacture and sales of European style material handling equipment and ancillary equipment, following and continuing the advanced technology of the European Material Handling Association

Search