Crane brakes are an important factor in ensuring the safe operation of cranes, especially with the increasingly widespread application of crane brakes today, resulting in more frequent safety accidents. Due to the complex working environment of cranes, it is necessary to ensure the safe selection of crane brakes. The performance of the crane brake, as a core component, directly affects the daily work efficiency and construction efficiency of the crane. Based on this, it is of great significance to strengthen the selection and safety performance analysis of crane brakes. Mechanism braking is an important link to ensure the normal and safe operation of mechanisms and equipment, especially important metallurgical equipment and lifting and unloading machinery. The braking technology level of mechanisms has a significant impact on the operational safety level and performance of equipment
In practical work, when conducting regular inspections of bridge and gantry cranes, relevant personnel have found that the brakes in the crane operating mechanism of most enterprises may malfunction or be adjusted irregularly. In addition, some factory maintenance personnel are inspecting the lifting mechanism and adjusting it through the brake of the operating mechanism, It also shows a general emphasis on the importance of the brakes in its lifting mechanism, while neglecting the necessity of adjusting the braking period in the operating mechanism. Even if relevant adjustments are made, they are often carried out solely based on personal experience, lacking necessary knowledge and technical knowledge, which brings increased hidden dangers to the safety production of equipment in the later stage. Therefore, the article starts with introducing the relevant characteristics of the brakes, Comprehensively analyze the relevant adjustment and maintenance methods of the crane brake to ensure the normal operation of the crane YWZ9 plus manual
Principles for selecting crane brakes
(1) Principle of standardization. In the selection process of crane brakes, due to the wide range of practical applications of crane brakes, unless there are special requirements for the brakes during crane construction, standard brakes are usually selected, and the selection of brakes is required to comply with national standard systems. Meanwhile, in the selection process, due to the different brake specifications of different models and types of cranes, it is necessary to focus on the size and specifications of the crane brake. If the size specifications do not meet the standards, it will not only be impossible to install, but even if it can be installed in use, there will be significant safety hazards.
(2) Safety principle. When selecting a crane brake, the key consideration is whether the brake is safe enough in practical application, analyzing the actual application performance of the crane brake, and ensuring that the brake is safe and reliable enough in practical application. Due to the large workload of cranes and their ability to carry large loads, there are requirements for the construction materials of crane brakes. It is necessary to focus on the stiffness and safety of the brake materials. If conditions permit, performance testing is required, especially for some core components in the brakes. It is necessary to ensure that all components comply with national regulations and standards, such as brake rods, brake arms, springs, etc.
(3) Adaptability principle. For the crane brake, as the core component of the crane, the brake has a direct or indirect connection with other components. Therefore, it is necessary to focus on analyzing the compatibility between the crane brake and other components. In the process of selecting brakes, it is necessary to fully consider the matching issues between various systems in the crane, whether the brakes meet the adaptation standards, including the performance of each system and the application environment.
Safety selection of crane brakes
2.1 Adjusting the braking torque
To ensure the safety of crane brake selection, it is necessary to analyze the torque performance of the brake. The selected brake needs to match the selection standard, measure the operating size of the brake torque, and based on this, adjust the torque value of the brake through the method of marking.