在链传动中,为了避免链条重度过大引起啮合不良和链条振动,同时也为了增加链条和链轮的啮合包角,链传动一般需要张紧装置。下面介绍一种新型无齿弹簧式自动补偿张紧装置。 1.新型链条张紧装置的结构和原理 无齿弹簧式张紧装置主要由带槽拱形头1、弹簧2及底座3组成(见图1)。拱形头置于链条 In the chain drive, in order to avoid excessive heavy chain caused mismatch and chain vibration, but also to increase the chain and sprocket mesh angle, chain drive generally require tensioning device. The following describes a new type of toothless spring-type automatic compensation tensioning device. 1. The structure and principle of the new chain tensioner The toothless spring tensioner is mainly composed of a grooved arch head 1, a spring 2 and a base 3 (see FIG. 1). Arch head placed in the chain