Drive belt tensioning device

   The utility model relates to a drive belt tensioning device for diesel engine belt, belt drive multiple attachments belonging to an auxiliary device. Its main use of the lower end of the idler wheel bracket connected through a clutch bearing tensioner, idler bracket inside the trap on the idler wheel worm gear, worm gear engages the bolt and tensioner. The utility model simple and compact structure, convenient operation and reliable performance; diesel engine in the car, such as the use of a belt drive multiple attachments at the same time, the installation of this device, you can improve the reliability of the belt drive and efficiency; and extend the life of the belt,