What are the characteristics of commonly used cranes and what are the characteristics of truck crane

Hoisting machinery is a kind of machinery that can complete vertical lifting and horizontal movement of heavy objects at the same time, and is widely used as the main construction machinery in industrial and civil construction projects. There are many kinds of lifting machinery, and mobile cranes are commonly used in construction, including: tower cranes, truck cranes, tire cranes, crawler cranes, etc., as well as the most basic lifting machinery - winches and construction lifts for vertical transportation of high-rise buildings.

The characteristics and scope of application of commonly used cranes are shown below: tower crane 1Pros:

1) It has a multi-purpose model (such as mobile, fixed, attached, etc.), which can adapt to the different needs of construction; (2) The lifting height can reach more than 100m after attachment; (3) the effective operating range can reach 80 of the full range; (4) It can be loaded and walked in place. (5) The power is an electric motor, which has good reliability and maintainability, and the operating cost is very low. 2.

Disadvantages: (1) The body is huge, in addition to being light, it needs to be disassembled, and it is time-consuming and laborious to disassemble and assemble; (2) The transfer cost is high, and the use period is short and uneconomical; (3) High-altitude work, high safety requirements; (4) It is necessary to build a foundation. 3. Scope of application (1) construction of high-rise and super high-rise civil buildings.

2) Heavy industry plant construction, such as hoisting of the structure and equipment of the main plant of the power station, hoisting of blast furnace equipment, etc. (3) The internal climbing type is suitable for the narrow environment of the construction site. Advantages of truck cranes:

1) Using general or special automobile chassis, it can drive according to the original speed of the car, flexible and mobile, and can be transferred quickly; (2) Hydraulic transmission is adopted, which is stable transmission, labor-saving operation, fast hoisting speed and high efficiency; (3) The boom is folded, with flexible working performance and fast transfer. Disadvantages: (1) Outriggers must be used when hoisting, and they cannot be driven under load; (2) Large turning radius and poor off-road performance; (3) The weight of the box-type crane arm affects the lifting weight; (4) High maintenance requirements.

Scope of application: It is suitable for construction units with large mobility or temporarily dispersed construction sites and open-air loading and unloading operations Advantages of rubber tyred cranes: (1) The driving speed is lower than that of the automobile type, higher than that of the crawler type, the turning radius is small, the off-road performance is good, and the uphill ability is up to 17 20; (2) Generally use outriggers to lift weight, do not need outriggers on flat ground, can work on all sides, and can also lift heavy weight and walk slowly; (3) Good stability performance.

Disadvantages: (1) The mobility is worse than that of the car type, and it is inconvenient to often walk long distances; (2) The driving speed is slow and the road surface requirements are high. Scope of application:

It is suitable for relatively fixed construction sites, especially for narrow construction sites Advantages of crawler crane: (1) slow driving speed, good off-road performance, large climbing ability, and the traction coefficient is multiple of the tire type; (2) It can be constructed in muddy, swamp and other soft grounds, and the lifting is relatively stable; (3) It can be replaced with a variety of working devices for a variety of operations, and has a wide range of use. Cons:

1) It is destructive to the road when driving; For long transfer distances, it is necessary to load it on a flatbed trailer. Scope of application: It is suitable for relatively fixed, poor ground conditions of the working place, and is a widely used crane in hoisting construction.

Some of the working characteristics of lifting equipment are to do intermittent movement, and the crane is customized to Xinxiang Degong Machinery, that is, in a working cycle, the corresponding mechanism of reclaiming, moving, unloading and other actions is alternately working, and the development and use of cranes in the market are becoming more and more extensive.

Due to the lack of outriggers and lifting heavy driving, there are often some accidents, and the speed of Xinxiang Degong machinery crane is also fast; The operation is stable, the lifting capacity is large, and the lifting can be carried within a specific range, but the road must be smooth and solid, the tire pressure meets the requirements, and the lifting from the ground shall not exceed 50cm; It is forbidden to walk long distances with loads.

In order to ensure the safety of the operation, it is basically forbidden to carry out hoisting operations without outriggers in China. The varieties of wire ropes used in Xinxiang Degong Machinery Cranes include phosphate-coated wire ropes, galvanized wire ropes and smooth wire ropes.

Truck cranes usually have the following characteristics:

Flexibility: The truck crane can be used in any location and can be easily moved on the move.

Convenient transportation: The truck crane is light and easy to move, which is convenient for transportation.

Versatility: Truck cranes can complete a variety of tasks such as lifting and handling.

Strong power: The truck crane has strong power and can meet the needs of different types of work.

Safety: The car bending crane has a safety protection device, which can effectively prevent accidents.

High driving speed, good mobility and good luck, which is convenient for flexible scheduling between near and far working points; It can be easily used for loading, unloading, hoisting various pipe sections, piles and various prefabricated reinforced concrete or steel structure components. The range of use is very wide, and the side height; Put down the bracket when hoisting, lift and hoist at the fixed point, and the loading and unloading operation does not use Kaikong with load driving.

The driving speed is high, the mobility is good, and it is convenient for flexible scheduling between the near and far working points.

Put down the bracket when hoisting, lift and hoist at the fixed point, and the loading and unloading operation does not use load driving.

It can be easily used for loading, unloading, hoisting various pipe sections, piles and various prefabricated reinforced concrete or steel structure components. The range of use is wide;

Truck cranes are first and foremost relatively safe and durable.

1. Heavy equipment can be divided into several categories according to different structures, such as light and small lifting equipment, lifts, cranes and overhead monorail systems.

2. Light and small lifting equipment mainly includes lifting pulleys, spreaders, jacks, manual hoists, electric hoists and ordinary winch, most of which are small in size, light in weight and easy to use. Except for electric hoists and winches, most of them are driven by manpower, which is suitable for occasions where the work is not heavy. They can be used alone, and some can also be used as a lifting mechanism for cranes.

Some light and small lifting equipment has a large lifting capacity, such as hydraulic jacks, which have a lifting capacity of 750 tons. The elevator is mainly used for vertical or near-vertical lifting wheel dust movement, and has a fixed lifting route, including elevators, lifting platforms, mine hoists and hopper lifts.

3. Cranes. A crane is a multi-action lifting equipment that lifts vertically and handles heavy objects horizontally within a certain range. Overhead type cranes include overhead cranes, special cranes, gantry cranes, loading and unloading bridges, etc.

Boom type cranes include truck cranes, rubber-tyred cranes, crawler cranes, tower cranes, portal cranes, floating cranes, and railway cranes.

4. The elevator is a lifting machinery that lifts heavy objects or fetching devices along the guide rail, and it includes a manned or freight elevator. Although the elevator has only one lifting action, the mechanism is very complex, especially the elevator for carrying people, which requires perfect safety devices and electronic control devices.