Hand cranked grinder repair, grinding wheel shaft repair

Hand cranked grinder repair for grinding wheel shaft repair. Hand cranked grinder repair for grinding wheel shaft repair refers to the "ring" of a size chain composed of one or a group of parts, whose size or angle should be in a long-term stable working state under specified working conditions. The main factors that cause changes in the accuracy of the closed ring during the repair, assembly, and use of the grinding wheel shaft in hand cranked grinders are as follows, which should be noted during repair and assembly.

1) Hand cranked grinder repair, grinding wheel shaft repair, insufficient assembly stiffness. When subjected to specified weight, dynamic load, cutting force, and vibration, it causes deformation or displacement of the parts. The main reasons for insufficient stiffness are:

1. Poor contact rigidity, insufficient and uneven contact between parts, rough contact surface, insufficient hardness of contact surface, burrs or debris between contact surfaces. The dimensional deviation and shape position deviation of the cylindrical conical surface and its end face exceed the tolerance, causing poor surface contact,

2. Positioning rigidity http://www.btjxjt.com Insufficient rigidity, loose positioning pins and keys, loose connections, rough surfaces, insufficient hardness, and small contact area.

3. The fastening strength of the connection is insufficient, the fasteners are not tightened, the fastening force is insufficient, or the pre applied force does not meet the requirements. The strength of the fasteners is insufficient.

4. The supporting components are deformed under stress, and no compensation measures have been taken in advance.

5. The accuracy of the parts originally met the requirements, but due to improper assembly, the parts deformed and had poor fitting contact, resulting in a decrease in assembly stiffness. Parts that require hot, cold, press fit, and adhesive assembly were not assembled as required.