Device for adjusting height of air bag of dual-drive-axle air suspension and operation machine

The utility model provides a device for adjusting the height of an air bag of a dual-drive-axle air suspension and an operation machine. The device for adjusting the height of the air bag of the double-drive-axle air suspension comprises a pair of oppositely-arranged connecting mechanisms, each connecting mechanism is used for being connected with a first drive axle and a second drive axle of an operation machine, and each connecting mechanism comprises a first connecting rod, a second connecting rod and a third connecting rod, the two ends of the first connecting rod are used for being connected with a first drive axle and a second drive axle correspondingly. One end of the connecting rod assembly is fixedly connected with the middle of the first connecting rod, and the other end of the connecting rod assembly is provided with an angle sensor; the control assembly is electrically connected with the angle sensor and used for controlling an air suspension air bag of the operation machine to be inflated or defl