How to achieve high-precision assembly of MR Freight Elevator traction system to ensure stable operation

In the core structure of MR freight elevator, the traction system is the key power unit to realize vertical transportation of goods. Its performance directly determines the safety and stability of elevator operation. The high-precision assembly process is the core link to ensure the best performance of the traction system. Each installation step contains precise technology and professional considerations to ensure that the elevator can stably and reliably complete the task of cargo transportation. ​
As one of the core components of the traction system, the installation process of the traction sheave has extremely high precision requirements. When installing the traction sheave on the motor shaft, the primary goal is to ensure the concentricity of the two. Once the concentricity deviates, the elevator will produce obvious vibration and noise during operation, which will not only affect the stability of cargo transportation, but also cause premature wear of components in long-term operation, reduce the service life of the elevator, and even cause safety problems. In order to achieve high-precision installation, professionals need to use special fixtures to assist the operation. These fixtures are specially designed to accurately locate the relative position of the traction sheave and the motor shaft, providing a reliable benchmark for installation. At the same time, with the help of high-precision measuring instruments, such as laser centering instruments, the installation process is monitored and adjusted in real time. The measuring instrument can accurately detect tiny deviations and guide the installer to make fine adjustments until the traction wheel and the motor shaft reach the ideal concentric state, reducing vibration and noise during operation from the source, laying the foundation for the smooth operation of the elevator. ​
The installation of the traction wire rope also follows strict specifications. As a key component that carries the weight of goods and transmits traction force, the installation quality of the wire rope is directly related to the safe operation of the elevator. During installation, it must be wound in a strict order. This order is not set arbitrarily, but is determined based on the design parameters and operating principles of the elevator to ensure that the force distribution of the wire rope between the traction wheel, guide wheel and other components is reasonable. If the winding order is wrong, it may cause excessive local force on the wire rope, accelerate wear or even breakage. During the winding process, the control of the wire rope tension is of utmost importance. Each wire rope needs to meet specific tension requirements, and the tension between each wire rope must be kept uniform. Uneven tension will cause some wire ropes to bear excessive loads. Once the load limit is exceeded, it will cause safety accidents. To ensure uniform tension, installers need to use professional tension detection equipment to test and adjust each wire rope multiple times. The detection equipment can accurately measure the real-time tension value of the wire rope. According to the measurement results, the installer can fine-tune the tension of the wire rope by adjusting the rope head combination or using the tension adjustment device until the tension of all wire ropes is consistent, eliminating the risk of damage and safety hazards caused by uneven tension.

In addition to the traction wheel and wire rope, the assembly of other components in the traction system should not be ignored. For example, the installation of the guide wheel needs to ensure its parallelism and verticality with the traction wheel, otherwise it will change the running track of the wire rope, increase running resistance and wear; the installation of the brake needs to ensure that the gap between the brake pad and the brake wheel is appropriate. Too large a gap may cause brake failure, and too small a gap will increase friction loss and affect the service life of the brake. The installation of each component requires the installer to have rich professional knowledge and skilled operating skills, and to operate in strict accordance with the design drawings and assembly process requirements.​
In the actual assembly process, in order to further improve the assembly accuracy, some advanced processes and methods will be used. For example, high-precision positioning pins and bolts are used in the connection parts of key components. These connectors are specially processed to provide more accurate positioning and more reliable fastening effects; for some precision components, strict cleaning and testing will be carried out before assembly to remove surface impurities and defects to ensure the stability of component performance. At the same time, the traction system after assembly needs to be fully debugged and tested. By simulating the actual operating conditions of the elevator, various performance indicators of the traction system are tested, such as traction force, operating speed, braking performance, etc. Once a problem is found, it is adjusted and optimized in time to ensure that the traction system reaches the best state before it is put into use. ​
From the precise control of the concentricity of the traction wheel and the motor shaft, to the strict and orderly winding and tension adjustment of the traction wire rope, to the precise installation of other components and the overall debugging of the system, every assembly link of the cargo elevator traction system is closely connected and interlocking. It is the persistent pursuit of precision and strict requirements on professional skills that enable the traction system to operate stably and reliably, providing a solid guarantee for the efficient and safe transportation of goods by freight elevators, allowing it to play an important role in many fields such as industrial production, warehousing and logistics.