Focus on domestic lifting machinery accidents – detailed safety issues

Lifting machinery safety accidents occur from time to time, according to the accident statistics of the State Quality Inspection Administration in recent years, the accident rate of lifting machinery and the number of casualties caused by accidents is high, which is a big problem that cannot be ignored by each crane operator, manufacturers, society and even the country, and it is also an urgent problem to be solved.

The risk of lifting machinery is not large, but in the operation and use of cranes, equipment production process and quality control, the revision of the national “lifting machinery safety regulations” should be paid attention to to avoid accidents.

We can summarize the safety accidents of lifting machinery as: human factors, manufacturing defects, basic defects, installation defects, wear and rust, environmental factors and so on. These are the main culprits of the high accident rate of lifting machinery.

Human factor
In the use of lifting machinery management is not in place or the operator’s own safety factors are not in place, resulting in the occurrence of lifting machinery accidents. With the reform of state-owned enterprises and the development of private enterprises, it is difficult to ensure that each lifting machine is operated by qualified personnel. In addition, the private enterprise owners of special equipment safety awareness is also an important reason for the impact of lifting machinery safety accidents.

On the other hand, equipment management includes daily inspection and planned repair of equipment, daily inspection is mainly the inspection of equipment safety performance, often easy to ignore. And some companies even the annual lifting machinery repair plan does not arrange. In addition, illegal operation is also the main reason for safety accidents during the use of lifting machinery.

Manufacturing defect

The level of manufacturing technology is backward. China’s lifting machinery standards and European and American standards have a certain difference, resulting in lifting machinery Sino-foreign joint ventures in our country is difficult to form a climate. The technical content of some small and medium-sized lifting equipment itself needs to be improved. In addition, due to market competition, the profits of production enterprises are also very limited, and the funds invested in new product research and development are also very limited.

Foundation defect
Some lifting machinery manufacturers in the development and design of new products, there is insufficient consideration of the load of the mechanical components in various use environments. The reliability of the braking system of the lifting mechanism is the key factor to determine the safety performance of the lifting machinery.

Most of the safety accidents occurring during the use of the lifting machinery are related to the lifting mechanism. The lifting mechanism is basically the use of electromagnet electromechanical brake, the key to the reliability of the operation is the control of the electromagnet coil, and the design of the electrical control system of the lifting machinery is the weak link that has existed in our country for more than 20 years.

This is the three major categories of key problems in lifting machinery accidents, and the key problems are solved in time. So how do we do that?

First, because the supervision and inspection of lifting machinery for a long time is the supervision and inspection after completion, the supervision and inspection of the installation process according to the new inspection regulations needs to change the concept of all inspectors and improve the level of business.

In theory, it is necessary to strengthen the study and understanding of inspection regulations, understand the weak links in the manufacturing and installation process, so as to formulate feasible inspection operation guidance documents to ensure the quality of inspection.

On this basis, the lifting machinery used in the past installation in the future regular inspection process in addition to inspection according to inspection regulations, but also targeted inspection installation, manufacturing easy to bring safety risks and defects in the links, the use of advanced detection means to increase some necessary testing items to prevent accidents.

The second is to encourage Sino-foreign cooperation in the production of lifting machinery in China, the introduction of advanced technology, improve the technical content and safety performance of lifting machinery and the overall manufacturing level of China’s lifting machinery.

The third is to strengthen the supervision and management of the lifting machinery industry and crack down on illegal and out-of-range production of lifting machinery. In the policy to those high-tech content and high safety performance lifting machinery manufacturers tilt, eliminate or shut down some low-technology content, low safety performance, by low price market competition enterprises, encourage lifting machinery manufacturing enterprises to introduce high-tech personnel, especially control personnel, lifting machinery for a new concept of design.

In fact, there are many reasons for the accident of lifting machinery, so that all construction units to maintain high quality and quantity production, this is the most important, from this point of view we should increase efforts to solve the key issues, to prevent the occurrence of accidents. No accident is a harm to each family, a major loss to each construction unit, a bruise to each manufacturer’s brand reputation, and no benefit to everyone, so it is necessary to eliminate the occurrence of lifting machinery accidents and break the weak link!