To solve the problem of single cylinder diesel engine starting shaft oil seal oil installation tooling

To solve the problem of single cylinder diesel engine starting shaft oil seal oil installation tooling - 2020 03 - 09 Yu Xiaoqing ( Shandong huayuan lai dynamic internal combustion engine co. , LTD. ) Our company is the production of small and medium-sized power of diesel engine state large enterprise, including single cylinder diesel engine starting shaft oil seal leakage is one of the key control projects in recent years, our company leak reasons in addition to the oil seal material itself, and the causes in the assembly process: (1) with the starting gear shaft oil seal into the head of helicoid have burrs or surface roughness can not meet the requirements. (2) oil seal oil return line and lip not besmear lithium grease. (3) in the assembly process starting shaft oil seal no special installation tooling cause oil seal lip flanging. Oil seal in the first place with the starting gear shaft spiral face chamfer burrs or surface roughness can not meet the requirements, the solution is for the chamfering of improvements for finishing processing, smooth transition, the surface roughness value Ra 1. 6μ M above and no burrs are allowed. For oil seal oil return line and lip lithium grease besmearing problems, the solution is to require suppliers in after the completion of the oil seal in a increase of oil seal oil return line and lip precoating lithium grease ( Using special equipment) So that it is solved in the process of assembly for artificial oil lead to uneven oil problems. Assembly in the process of starting shaft oil seal was no special installation tooling, assembly time often cause oil seal lip pinched or flanging, the oil market failure rate is bigger. Specially designed the special oil seal installation tooling, as shown in figure 1. Figure 1 oil seal installation tooling figure 2 for starting shaft seal assembly drawing, including 5 for the oil seal installation tooling, the material is nylon rods, as shown in figure 1 size for processing, assembly when its on the left side of the first & phi; 21 mm shaft placed inside the starter gear shaft hole position, the left & phi; 33. 8 mm inner side and starter gear shaft outer circle into the head fit ( To prevent scratches oil seal lip burr, etc) And the right side of his shaft neck seal installation guide role, by the special equipment to press the oil seal into, to ensure that the oil seal lip not flanging. Figure 21. The body; 2. Starting shaft gear; 3. Starter gear shaft; 4. Gear chamber cover; 5. This oil seal oil seal installation tooling installation tooling after more than two years of use, not only easy to operate, and ensures that the oil seal lip flanging, scratch, welcomed by the operator, completely solve the single cylinder diesel engine starting shaft oil seal leak. Source: the metal processing ( Cold working) , no. 4 in 2019