The purpose of disassembly is to facilitate maintenance and repair.Due to the unique characteristics of the structure of machinery and equipment, there are differences in the weight, structure, accuracy, etc. of the parts. If the parts are not disassembled properly, the parts will be damaged, causing unnecessary waste, and even beyond repair.In order to ensure the quality of maintenance, it is necessary to plan carefully before disintegration, estimate the problems that may be encountered, and disassemble in a step-by-step manner.

1.The structure and working principle must be clarified before disassembly

There are many kinds of machinery and equipment, with different structures.It is necessary to clarify the structural characteristics, working principle, performance, and assembly relationship of the disassembled part, so that you know it in your heart, and you cannot dismantle it carelessly or blindly.For unclear structures, the relevant pattern information should be consulted to figure out the assembly relationship and the nature of the fit, especially the position of the fasteners and the exit direction.Otherwise, it is necessary to analyze and judge while trying to disassemble, and sometimes it is necessary to design suitable disassembly fixtures and tools.

2.Make preparations before disassembly

The preparatory work includes: the selection and cleaning of the disassembly site; the power failure, sassafras, and oil discharge before disassembly; the protection of electrical, easily oxidized, and easily corroded parts, etc.

3.Starting from the actual situation, try not to dismantle those that can't be disassembled, and those that need to be disassembled must be disassembled.

In order to reduce the disassembly workload and avoid damaging the nature of the fit, the parts that can still ensure the performance of the use may not be disassembled, but the necessary tests or diagnostics are required to make sure that there are no hidden defects.If you are not sure about the internal technical status, you must check during disassembly to ensure the quality of maintenance.

4.Use the correct disassembly method to ensure the safety of people and machinery and equipment

The disassembly sequence is generally the opposite of the assembly sequence. The external accessories are disassembled first, and then the whole machine is disassembled into parts. After disassembly, all parts are disassembled into parts, and placed together according to the parts.According to the connection form and specifications of the parts, choose suitable disassembly tools and equipment.For non-removable joints or joints that reduce accuracy after disassembly, care must be taken to protect them during disassembly.

5.For shaft hole assemblies, the principle of the same force used for disassembly and assembly should be adhered to

When disassembling the shaft hole assembly, it is usually necessary to insist on how much force is used to assemble and how much force is used to disassemble.If an abnormal situation occurs, find the cause to prevent the parts from being bruised, brushed, or even damaged during disassembly.

6.Disassembly should create conditions for assembly

If the technical information is incomplete, it is necessary to have the necessary records of the disassembly process so that it can be reassembled in accordance with the principle of “disassembly first and then assembly” during installation.For disassembly of precision or complex parts, assembly sketches should be drawn or marked during disassembly to avoid accidental assembly.After the parts are disassembled, they should be thoroughly cleaned, oiled and rust-proof, and the processing surface should be protected to avoid loss and damage.Slender parts should be hung, pay attention to prevent bending and deformation.Precision parts should be stored separately to avoid damage.Pay attention to small parts to prevent loss.Parts that are not interchangeable should be stored or marked in groups.