For example, how should the center distance between rollers be determined for a roller conveyor with double chain tooth drive? Of course, first of all, the center distance should be initially determined according to the structural requirements. However, the structural requirements of the center distance is not necessarily in line with the results of the calculation of the length of the chain link, so it is necessary to calculate the completion of the actual number of links according to the number of chain links in turn and then adjust the size of the center distance. After rounding the number of links should be taken as an even number, this is to avoid the transition link, with the transition link, can withstand the load to be small 20% or so. Left and right two...

The chain enters the sprocket to form a folded line, so the motion of the chain drive is very similar to that of a belt drive wound around a square polygonal wheel, see Fig. 9. The length of the side corresponds to the chain pitch p, and the number of the side corresponds to the number of teeth of the sprocket wheel z. For each revolution of the sprocket wheel, the chain moves by a distance of zp, and let z1 and z2 be the number of the teeth of the two sprocket wheels, p be the pitch (mm), and n1 and n2 be the rotational speed of the two sprocket wheels (r/min), then the average velocity v (m/s) of the chain is v=z1pn1/60*1000=z2pn2/60*1000 The average speed v (m/s) is v=z1pn1/60*1000=z2pn2/60*1000 ...

Correct use and maintenance of chain drive has a decisive influence on reducing the wear of chain and improving the service life of chain drive. The use and maintenance should pay attention to the following points: 1. Reasonable control of processing error and assembly error Reasonable control of the pitch error (the difference between the specified pitch and the actual pitch) should be less than 2%; the offset between the two sprocket wheel tooth end surfaces (i.e., sprocket wheel offset) should be less than 2% of the center distance; the two axes should be parallel, or it will result in the skewing of the chain's rollers to the tooth surfaces, which will result in a very high one-sided pressure ...

1, the arrangement of chain drive Chain drive should be generally arranged in the plumb plane, avoiding as far as possible to be arranged in the horizontal or inclined plane. If it is really necessary, it should consider adding devices such as pallets or tensioning wheels, and designing a more compact center distance. 2、Tensioning of chain drive Purpose: To avoid poor meshing and chain vibration phenomenon when the pendant of the chain is too large; meanwhile, increase the wrapping angle of the chain and sprocket. When the angle of inclination of the line connecting the centers of the two wheels is more than 600, a tensioning device is usually provided. Tensioning...

1、Protection against the hazards of mechanical transmissions Transmissions are required to cover all moving parts to prevent any part of the body from coming into contact with them. According to the shape of the protective part, the size of the fixed protective devices, installed in the transmission part of the external, can be completed to prevent human contact with the machine's rotating parts of the danger. The main protective measures: ① bare gear drive system must be installed protective shield; ② where the height of the chain drive less than 2 meters above the ground, must be installed protective cover; in the passage above,...

With the continuous innovation of industrial conveyor sprocket technology in industrial conveyor machinery and equipment, the industrial sprocket on the conveyor conveyor equipment has been widely used, and the use of various types of conveyor equipment, according to the production environment and places of different enterprises and production technology, to carry out a variety of conveyor sprocket drive flexible combination of the use of conveyor equipment. Conveyor sprocket drive conveying applications in the process of production operations, with flexible turning and expansion and contraction ...