The screw elevator is simple and convenient to use and install, and experienced manufacturers can give a reasonable and perfect selection plan and calculation data according to customer requirements, saving a lot of selection and calculation time for users. For selection consultation, please contact Rude Transmission.
The worm gear or gear transmission mechanism of the screw elevator drives the screw to do linear motion, and its use and selection need to fully consider the use of load, effective stroke, lifting speed, use efficiency, drive source, installation space environment and other factors, and the implementation of these problems can be preliminarily selected scheme model.
The selection of screw elevator needs to be determined according to actual needs. Different models of screw lifts have different characteristics and scope of application, for example, for light load, short stroke and low speed applications, ordinary worm trapezoidal screw lifts can be selected; For heavy-duty, long-travel and high-speed applications, a high-strength, high-thrust, low-friction ball screw lift is required. In addition, factors such as the transmission method, installation method, and size and weight of the screw hoist need to be considered to ensure that it is suitable for the actual working environment and conditions.
The load and stroke of the screw elevator are important selection criteria. The load is all the forces that may act on the screw rod, including the weight of the lifting material itself, the friction force and impact force that may be generated by lifting. Under the condition that the load is determined unchanged, the change of stroke height has an impact on the stability requirements of the screw rod, so the effective stroke height should be determined according to the actual use needs. Implement the working system for the use of equipment, select the appropriate transmission structure, and calculate and match the appropriate motor power and torque according to the travel speed requirements. Handwheel drive calculates the required torque, handwheel diameter. The assembly structure of the screw elevator is different and the space occupied is different. There should be screw travel space up and down the installation surface of the screw lifting structure, which occupies a large space; The nut lifting structure only needs to have a travel space above the installation surface, and the on-site installation space is confirmed when selecting the model, and the appropriate assembly structure is selected. Confirm and adjust the installation size according to the model drawings provided by the manufacturer, until both parties confirm that the scheme drawings are confirmed.
Another part that is equally important as the selection is the on-site installation and commissioning. The installation of the screw hoist needs to be a clean and tidy plane, especially the installation of multiple linkages to form a working platform. The elevator is installed and fixed in the plane installation of the equipment to ensure the verticality of the screw rod, and the coaxiality of the input and output shafts between the reducer, steering gear, connecting rod, coupling and motor components should be paid attention to in the linkage installation, and the center height is inconsistent by adding a cushion plate and other leveling, and the installation and placement of the steering gear should be paid attention to determine the rotation direction to avoid asynchronicity. After the installation is completed, the elevator screw and nut are filled with grease and then carried out a no-load test, pay attention to the coordination between the components, stop the machine for inspection in time when the problem is found, and then start the machine again until the problem is solved, and gradually load it to meet the design requirements. After the mechanism runs for a period of time, it is necessary to pay attention to maintenance and replace the grease, and good lubrication can effectively extend the service life of the equipment.
In short, the selection and installation of the screw elevator is an important guarantee for the normal operation of the equipment. In practical application, we need to consider comprehensively according to the actual situation, choose the appropriate screw lift and install it correctly to ensure the stability and reliability of the equipment. At the same time, it is also necessary to strengthen the maintenance and maintenance of the equipment, carry out regular inspection and maintenance, and find and solve potential problems in time to prolong the service life of the equipment and improve its operation efficiency.