Timing belt toothing conditions
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Timing belt toothing conditions

Views: 0     Author: Uliflex     Publish Time: 2020-09-24      Origin: Site

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What conditions need to be met for smooth toothing of synchronous belt wheels

As a transmission tool, the timing belt is its own job to transmit power. However, because the timing belt itself has toothing, if the toothing is low, the efficiency of the timing belt at work will be lower, so the timing belt What issues should be paid attention to for smooth toothing?
The smooth toothing of the synchronous belt must first understand the problems that affect the toothing. When the synchronous belt is in use, the phenomenon of tooth crawling and tooth jumping will occur. According to the analysis of the phenomenon of belt crawling and jumping teeth, the belt crawling and overlooking teeth are caused by Caused by two factors, geometry and mechanics. Therefore, in order to avoid the occurrence of tooth crawling and skipping, the following measures can be adopted. Control the circumferential force transmitted by the synchronous belt so that it is less than or equal to the allowable circumferential force determined by the belt model. Control the pitch difference between the belt and the pulley so that it is within the allowable pitch error range. Properly increase the initial tension when the belt is installed, so that the belt teeth are not easy to slip out of the gear groove. Increasing the hardness of the base material of the timing belt and reducing the elastic deformation of the belt can reduce the occurrence of tooth creeping.
Synchronous gears need to be smoothly engaged in order to make it operate smoothly and accurately, and reduce the probability of failure. For this reason, when making products, timing pulley manufacturers need to consider its smooth toothing and what conditions must be met, so that they can successfully produce high-quality timing pulleys. In the production of the toothed part of the timing belt wheel, the production staff need to meet two conditions. The first one: On the timing belt wheel, there must be a circle tangent to the pitch line of the belt and enable them to achieve pure rolling. The second one: the corresponding points of two adjacent tooth slots on the synchronous belt wheel, the distance measured on this circle must be the same as the pitch on the synchronous belt wheel. When the production staff is making the timing belt wheel, it needs to meet these two conditions to ensure the smooth toothing of the timing belt wheel and the timing belt.
  In the above two conditions, a lot of professional knowledge is involved. If you are not a professional, you generally can't understand it. In the first condition, pure rolling is achieved by tangent to the belt pitch line on the timing belt wheel, and this pair of rolling circle is called the belt wheel pitch circle. In the second condition, the distance between the corresponding points of adjacent gears measured on the pitch circle is the pitch of the pulley. For this reason, when designing, the staff usually use the words of pitch circle and pitch to calculate. When they are explained, people will be able to know the meaning of the conditions to be met.

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