Pumping unit belt replacing and adjusting device

The invention provides a pumping unit belt replacing and adjusting device, which comprises a base towing bracket, wherein an adjusting baffle and a fixed baffle are arranged at the two ends of the base towing bracket respectively, the fixed baffle is fixedly connected with one end of the base towing bracket, the adjusting baffle can slide relative to the other end of the base towing bracket, an accommodating space for accommodating a motor base is formed between the adjusting baffle plate and the fixed baffle plate; a screw driving assembly which is connected with the base towing bracket and can drive the base towing bracket to move in the extending direction of the screw driving assembly. The adjusting device has the beneficial effects that the adjusting device is simple in structure, high in practicability and convenient to install and operate, can be used for replacing and adjusting a belt when pumping units of various types use motors of different types, greatly shortens the operation pumping stopping tim