Introduction to Mobile Hydraulic Crane

The mobile hydraulic crane is advanced lifting equipment driven by a hydraulic system. It has a strong lifting capacity and excellent performance. It plays a vital role in modern industry and logistics. The characteristics of mobile hydraulic cranes are very obvious. First, its lifting capacity is strong and it can easily cope with the lifting needs of various heavy equipment. For example, some large mobile hydraulic cranes can lift from 200 to 1,000 tons, supporting large-scale projects and equipment handling. Secondly, the hydraulic transmission has the characteristics of small size, lightweight, and low inertia, making the crane easy to operate and reliable. At the same time, mobile hydraulic cranes are adaptable to various places without power supply and have their power systems. Whether it is cement or asphalt pavement, they can show strong site adaptability and maneuverability. Regarding structural design, the mobile hydraulic crane has a simple structure and is lightweight. The main hydraulic components such as pumps, travel motors, and reducers are all imported products, making the whole machine highly reliable. Its operating mechanism has multiple functions such as horizontal and vertical movement, and 360° rotation with the geometric center of the vehicle as the center, forward, backward, braking, etc., which brings great convenience to actual operations. In addition, the mobile hydraulic crane also adopts advanced technologies, such as four-point lifting and three-point balancing technology, which can ensure the balance of the entire system when the load weight is unevenly distributed, effectively avoiding the risk of overloading a single lifting point. The control unit adopts advanced electro-hydraulic technology, and all system control actions are completed by solenoid valves, which improve the comfort of operation, reduce labor intensity, and meet ergonomic requirements. ![履带起重机工地作业.png](https://cdn.steemitimages.com/DQmenZeeacMVXZtquCsZvM9vi1nnajuuUiev4YqNkvF2pBE/%E5%B1%A5%E5%B8%A6%E8%B5%B7%E9%87%8D%E6%9C%BA%E5%B7%A5%E5%9C%B0%E4%BD%9C%E4%B8%9A.png)

Working Principle and Mechanism

How the hydraulic system operates

The working principle of the hydraulic crane is to pressurize the hydraulic oil through the hydraulic pump and transport it to the hydraulic cylinder through the oil pipe. The pressure of the hydraulic oil is used to drive the piston movement in the hydraulic cylinder, thereby achieving control of the actuators such as the boom and hook. control. The hydraulic transmission system of the hydraulic crane uses a triple-gear hydraulic oil pump as the hydraulic power source, and a safety relief valve is installed on the high-pressure side of the first and triple gears. The hydraulic system uses a hydraulic pump to convert the mechanical energy of the prime mover into the pressure energy of the liquid. The energy is transferred through changes in the pressure energy of the liquid. Through various control valves and pipelines, the liquid is transferred to the liquid with the help of hydraulic actuators (cylinders or motors). Pressure energy is converted into mechanical energy, thereby driving the working mechanism to achieve linear reciprocating motion and rotary motion. For example, the slewing buffer valve is a high-performance multi-functional combination valve widely used in the slewing mechanism of hydraulic truck cranes ranging from 20 tons to 100 tons in my country. It is used in the luffing and telescopic cylinder circuits of hydraulic truck cranes. It is especially suitable for situations where the area of the two chambers of the cylinder is relatively large.

Key components work together

In a mobile hydraulic crane, key components work together to achieve efficient lifting operations. As a power component, the hydraulic pump provides power for the entire hydraulic system, sucking hydraulic oil from the tank and pressurizing it. As an actuator, the hydraulic cylinder realizes expansion and contraction changes in volume under the pressure of oil, thereby driving the lifting and contraction of the boom and the lifting and lowering of the hook. Various hydraulic valves serve as control components to control and regulate the pressure, flow, and direction of liquid in the hydraulic system. For example, according to different control functions, hydraulic valves can be divided into pressure control valves, flow control valves, and directional control valves. Pressure control valves are further divided into relief valves, pressure reducing valves, sequence valves, pressure relays, etc.; flow control valves include throttle valves, adjustment valves, diverter and collector valves, etc.; directional control valves include one-way valves, hydraulic control one-way valves, etc. valves, shuttle valves, reversing valves, etc. These key components work together to enable the mobile hydraulic crane to perform lifting operations efficiently and stably.

Wide Range of Application Fields

Key roles in construction projects

In the field of construction engineering, mobile hydraulic cranes play a key role. In construction projects, it is often necessary to hoist various heavy building materials, such as steel bars, concrete prefabricated components, etc. With its powerful lifting capacity, mobile hydraulic cranes can easily lift these heavy materials to designated locations. For example, in the construction of high-rise buildings, mobile hydraulic cranes can accurately hoist large steel structural components to high-altitude locations, providing strong support for the construction of the main structure of the building. Its flexible mobility allows it to shuttle freely within the construction site and adapt to the needs of different construction areas. Moreover, the mobile hydraulic crane is easy to operate, can quickly respond to changes in construction progress, and improves the construction efficiency of construction projects.

A powerful assistant in water conservancy projects

In water conservancy projects, mobile hydraulic cranes are also powerful assistants. It can assist in the installation of large water conservancy equipment, such as gates, turbines, etc. During the construction of hydropower stations, mobile hydraulic cranes can lift open and close gates to ensure the normal operation of the hydropower station. It has a wide lifting range and can meet the lifting needs of equipment of different weights in water conservancy projects. For example, some large mobile hydraulic cranes in water conservancy projects have a lifting capacity of 80 - 500 tons, a small span of 8 - 16 meters, and a low lifting speed of 1 - 5 meters/minute. Although it is not frequently lifted, the work is very heavy once it is used, so the work level must be appropriately increased. In addition, the stability of mobile hydraulic cranes is also very important in water conservancy projects to ensure that no damage is caused to water conservancy facilities during the hoisting process.

Application expansion in other fields

In the field of transportation, mobile hydraulic cranes can be used for the construction and maintenance of roads and bridges. In road construction, it can hoist large bridge components and speed up the project's progress. During bridge maintenance, damaged components can be lifted down and replaced. In the energy field, such as in the construction of wind farms, mobile hydraulic cranes can hoist equipment such as large wind turbine nacelles. Judging from customer consultations and orders in recent years, hydraulic gantry cranes occupy an important position in cooperation orders with wind power generation companies and large equipment installation companies. Its large lifting capacity, excellent safety performance, fast assembly and disassembly speed, and convenient transportation make it one of the important equipment in energy field construction.

High-Quality Products on The Market

Selection criteria for the best mobile hydraulic crane

There are several criteria to consider when choosing the best mobile hydraulic crane. The first is the lifting capacity. Powerful lifting capacity is one of the important indicators to measure the performance of mobile hydraulic cranes. Generally speaking, cranes with a lifting capacity of hundreds of tons or even thousands of tons have more advantages in large projects. For example, some high-end products can easily handle lifting tasks of 500 - 1500 tons. Second is safety, which includes the structural stability of the equipment, the reliability of the control system, and the perfection of the safety protection devices. For example, a crane equipped with a run-flat tire tipping device can effectively prevent equipment tipping and other accidents when an accident occurs, greatly improving the safety of operations. In addition, operational convenience is also one of the important criteria. The advanced electro-hydraulic technology control unit can improve the comfort of operation, reduce labor intensity, and meet ergonomic requirements. There is also equipment reliability. The main hydraulic components of the crane are imported products, making the whole machine more reliable and able to reduce the number of repairs and downtime.

Popular product recommendations

Several mobile hydraulic cranes are highly recognized in the market. For example, a certain mobile hydraulic gantry crane brand adopts a full hydraulic drive and is suitable for various places without a power supply. It has its power system and has strong site adaptability and flexibility. It adopts four-point lifting and three-point balancing technology to ensure system balance and prevent overloading of the lifting points. The control unit adopts advanced electro-hydraulic technology and is comfortable to operate. The crane also uses a multi-lifting point combined spreader, and the distance between the lifting points can be adjusted on-site according to customer needs to meet the use requirements of different lifting states. In addition, there is also a mobile small hydraulic crane. Although the lifting capacity is relatively small, its structure is simple and its weight is light, making it suitable for use in places with limited space. Its operating mechanism is flexible and can realize functions such as horizontal travel, longitudinal travel, and 360° rotation on the spot. These popular products have won wide acclaim in the market for their excellent performance and reliable quality. ![履带起重机吊物.png](https://cdn.steemitimages.com/DQmQx428BcmCFpY3JPXXRX5ciBMn5nDZ7yQrwh3eeXUHayb/%E5%B1%A5%E5%B8%A6%E8%B5%B7%E9%87%8D%E6%9C%BA%E5%90%8A%E7%89%A9.png)

Future Development Trends

Intelligent development trends

With the continuous advancement of science and technology, the intelligent development of mobile hydraulic cranes will become an inevitable trend. Future mobile hydraulic cranes will be equipped with advanced sensor technology that can monitor the working status of the crane in real-time, such as lifting weight, boom angle, wind speed, etc. Through data analysis and processing, the crane can automatically adjust working parameters to ensure safe and efficient lifting operations. For example, when it detects that the lifting weight is close to the rated value, the crane can automatically sound an alarm and limit further lifting operations. At the same time, the intelligent control system will enable remote operation, and operators can control the crane through wireless communication technology from a safe distance, improving the safety and convenience of operation. According to relevant data, some companies have begun to develop intelligent mobile hydraulic cranes. It is expected that in the next few years, intelligent mobile hydraulic cranes will gradually become the mainstream product in the market.

Development trends in environmental protection

Against the backdrop of increasing global environmental awareness, mobile hydraulic cranes will also develop in an environmentally friendly direction. On the one hand, the crane's engine will use more environmentally friendly power sources, such as hybrid power, electric power, etc., to reduce exhaust emissions and energy consumption. For example, some companies are developing electric mobile hydraulic cranes, which have zero emissions, low noise and meet environmental protection requirements during work. On the other hand, the manufacturing materials of the crane will pay more attention to environmental protection, using recyclable and degradable materials to reduce the impact on the environment. At the same time, during the design and manufacturing process of the crane, energy-saving and consumption-reduction factors will be fully considered to improve energy utilization efficiency. For example, by optimizing the design of the hydraulic system, energy loss is reduced and the energy efficiency ratio of the crane is improved.

Development trend of multi-functionality

To meet the needs of different users, future mobile hydraulic cranes will pay more attention to the development of multi-functionality. In addition to traditional lifting functions, cranes will also have other additional functions, such as handling, loading and unloading, excavation, etc. For example, some new mobile hydraulic cranes are equipped with multi-functional clamps that can grab and carry goods of different shapes and materials. At the same time, the versatility of the crane will also be improved, and it can adapt to different working scenarios by replacing different working devices. In addition, with the continuous development of automation technology, future mobile hydraulic cranes will also realize automatic loading and unloading of goods, improve work efficiency, and reduce labor intensity.

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