Sprocket processing illustrated sprocket maintenance and structure design

Sprocket processing illustrated sprocket maintenance and structure design, chain wheel processing & ndash; — Maintenance of sprocket: 1, appropriate to the looseness of the chain pulley, too tight will increase power consumption, bearing wear and tear; Too loose chain easy to beat and take off the chain. Tightness of sprocket: filed or under pressure from the central part of the chain wheel, chain wheel center distance of about two 2% to 3%. 2, chain wheel mounted on a shaft should not swing and skew. Two sprockets face in the same transmission components should be located on the same plane, the sprocket center distance in 0. 5 meters, can be deviation of 1 mm; Sprocket center distance in 0. More than 5 meters, can be deviation of 2 mm. But you can't have friction sprocket profile phenomenon, if the two rounds of offset too prone to take off the chain and accelerated wear and tear. When replacing sprocket must pay attention to check and adjust the offset. 3, after the sprocket wheel wear serious, should replace new sprocket and chain wheel at the same time, to ensure good mesh. Can not only replace new sprocket or sprocket alone. Otherwise it will cause bad meshing speed new sprocket or new sprocket wheel wear. Sprocket tooth surface wear to a certain degree to flip timely after using ( Adjustable surface using sprocket) To extend the use time. 4, new chain wheel is too long, or elongation after use, it is difficult to adjust, can see things down link, but must be even. Through the link from the chain wheel on the back of the lock plate inserted in the outside, lock piece of opening should be toward the rotation in the opposite direction. 5, sprocket in the work should be timely filling lubricating oil. Lubricating oil must be into the roller and the inner sleeve fit clearance, to improve working conditions, reduce wear and tear. 6, old cannot be used mixed with part of the new chain sprocket, otherwise easy to impact in the transmission, snap sprocket. 7, machine long stored, chain wheel should be removed with kerosene or diesel clean, then coated with oil or butter in a dry place. Second, the sprocket processing & ndash; — The structure of the sprocket design: 1. The sprocket tooth profile sprocket tooth profile must ensure that the chain energy saving mesh smooth entry and exit freely, minimize the impact of the meshing of link and contact stress, and is easy to be processed. Commonly used sprocket tooth face, it consists of three sections of circular arc aa, ab, CDS and a straight line BC, referred to as 'three - circular arc Linear tooth shape. Sprocket tooth profile using a standard cutting tool processing, work in don't have to draw end tooth shape on the graph, only need to indicate on the diagram & quot; Tooth profile according to the 3 rgb1244 - 85 regulations manufacturing & quot; Can, but should draw the axis of the sprocket tooth surface, as shown in figure 2, the size refer to the design manual. Had mentioned parameter calculation in front, do not repeat narrative! 2. Chain structure commonly used chain structure of small diameter, the chain made of monolithic, medium diameter of sprocket to make radial plate more, for ease of handling, loading and weight loss, on the radial plate hole, large diameter sprocket can be made into modular, the ring gear and the wheel core can use different materials to make! The C45, for example, the material such as stainless steel. 3. Chain sprocket materials should guarantee the tooth has enough strength and abrasion resistance, so the sprocket tooth surface is generally after heat treatment, to a certain hardness. Given yuan is a commitment to the development of coating equipment and related equipment, manufacturing equipment and accessories manufacturing of high-tech enterprises, mainly engaged in coating production of spare parts, precision parts processing, chain wheel processing, batch parts processing, tel: 0086 - 574 - 55224980!
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