其實(shí)不管是是什么樣的同步帶，對于大多數(shù)PU同步帶生產(chǎn)廠家來說，張緊力都是比較重要的。在這兩種張緊方法中，所使用的張緊輪類型和大小，以及惰輪放置的位置，是不一樣的。
In fact, no matter what kind of synchronous belt it is, the tension is more important for most Pu synchronous belt manufacturers. In the two tensioning methods, the type and size of the tensioning wheel used and the position of the idler are different.
PU同步帶是綜合了帶傳動，鏈條傳動和齒輪傳動的優(yōu)點(diǎn)而設(shè)計(jì)出的產(chǎn)品。根據(jù)同步帶的摩擦傳動原理，同步帶必須在張緊后才能正常工作。運(yùn)轉(zhuǎn)一定之間帶會松弛，為了保證同步帶的能力，必須重新張緊，才能正常工作。
Pu synchronous belt is a product designed by combining the advantages of belt drive, chain drive and gear drive. According to the friction transmission principle of synchronous belt, the synchronous belt must be tensioned before it can work normally. In order to ensure the capacity of the synchronous belt, it must be re tensioned before it can work normally.
PU同步帶傳動具有帶傳動、鏈傳動和齒輪傳動的優(yōu)點(diǎn)。同步帶傳動由于帶與帶輪是靠嚙合傳遞運(yùn)動和動力，故帶與帶輪之間無相對滑動，能保證準(zhǔn)確的傳動比。同步帶通常以鋼絲繩或玻璃纖維繩為抗拉體，氯丁橡膠或聚氨酯為基體，這種帶薄而且輕，故可用于較高速度。

Pu synchronous belt drive has the advantages of belt drive, chain drive and gear drive. Synchronous belt drive because the belt and pulley transmit motion and power by meshing, there is no relative sliding between the belt and pulley, which can ensure accurate transmission ratio. The synchronous belt usually takes steel wire rope or glass fiber rope as the tensile body and neoprene or polyurethane as the matrix. This kind of belt is thin and light, so it can be used for higher speed.
但是大家要知道的是PU同步帶的張緊基本上都是一樣的，分為內(nèi)側(cè)張緊和外側(cè)張緊。一般來說，內(nèi)側(cè)張緊，優(yōu)先使用同步輪，而不使用光滑輪，因?yàn)槭褂霉饣?，噪聲和磨損都會增加。同時(shí)要求張緊同步輪的直徑，不得小于小輪直徑。
But you should know that the tension of Pu synchronous belt is basically the same, which is divided into inner tension and outer tension. Generally speaking, for internal tensioning, it is preferred to use synchronous pulley instead of smooth pulley, because the use of smooth pulley will increase noise and wear. At the same time, the diameter of the tensioning synchronous wheel shall not be less than the diameter of the small wheel.
但是對于一些供應(yīng)商來說，內(nèi)側(cè)張緊也可以使用不帶齒的平惰輪，但是前提是，直徑必須大于等于40倍傳動帶齒距。另外，內(nèi)側(cè)張緊會減小包角，也就減小了有效嚙合齒數(shù)，所以為了不過多地減小包角，內(nèi)側(cè)張緊輪應(yīng)當(dāng)盡量靠近大輪附近。而寧波同步帶外側(cè)張緊，張緊輪因?yàn)槭呛蛡鲃訋П趁娼佑|，所以不需要帶齒，光滑的滾輪即可。但是，無論是內(nèi)側(cè)張緊，還是外側(cè)張緊，都需要把張緊輪放置在松邊，這樣在啟動的時(shí)候，才不于松邊和緊邊柔度差距太大，也就減小了跳齒的可能性。
However, for some suppliers, flat idlers without teeth can also be used for inner tensioning, provided that the diameter must be greater than or equal to 40 times the drive belt pitch. In addition, the inner tensioning will reduce the wrap angle, which will reduce the number of effective meshing teeth. Therefore, in order to reduce the wrap angle as much as possible, the inner tensioning wheel should be as close to the big wheel as possible. The outer side of Ningbo synchronous belt is tensioned. Because the tensioning wheel is in contact with the back of the transmission belt, there is no need for belt teeth and smooth rollers. However, whether it is inner tensioning or outer tensioning, the tensioning wheel needs to be placed on the loose edge, so that when starting, the flexibility gap between the loose edge and the tight edge will not be too large, which will reduce the possibility of tooth skipping.
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