Agricultural machinery dismantling requires attention
Agricultural machinery dismantling is a common engineering operation in the process of machinery manufacturing, use and repair. This operation is closely related to the safety of personnel and the quality of the product. Therefore, operators must pay attention to the following matters during the dismantling process.
First, the operator should carefully study the process and schematic diagrams before dismantling, and clearly understand the spatial structure and assembly structure of the parts before disassembly. Be sure to observe and inspect the assembling direction and working direction of the parts. Before each part is removed, draw a sketch to label the number and relative position of the parts, and make a label in the spare parts warehouse accordingly.
Second, respect the preset installation order, the clearance between parts and the size and shape of the assembly parts. When assembling, the baffle of the box should be removed first, then the axle box should be taken out, and various positioning surfaces, connecting surfaces and bearing surfaces should be inspected seriously. No force should be applied to the parts to be removed, and the use of tools should meet the requirements of operational procedure.
Third, when disassembling columns and rotary parts, surface rust and welding slag, surface scale, etc., should be thoroughly cleaned before dismantling, so as to avoid the adverse effects of dirt and dust on the contact area and assembly accuracy. When removing components, you must use the right size of tools for the job. To disassemble through-hole parts, the direction of rotation must be considered, and special tools should be used for screws with special specifications to prevent damage to threads.
Fourth, when using force to remove parts, the torque wrench should be used correctly, and the size of the wrench should be correctly selected. Do not tap on the diaphragm and the body to remove the screws and nuts. Be sure not to apply too much force during the dismantling process, otherwise it will cause the parts to be bent or deformed, or the thread is damaged, and the assembly accuracy is affected.
Finally, after the parts have been removed, they must be placed on a clean parts shelf. Remove bolts and other ready-to-assembly components and place them on a symbol board. Inside the sign table is marked with the number, size and assembly position of the parts. When reinstalling these parts, be sure to pay attention not to make mistakes in the assembly order and direction.
In conclusion, in the process of agricultural machinery disassembly, attention must be paid to strictly follow the operation procedures, keep records of parts and components, and pay attention to personnel safety. In addition, the torque wrench should be used correctly and the accurate size should be selected in force dismantling, so as to avoid the parts being bent, deformed, or the thread being damaged, so as to ensure the accuracy of assembly.
