Intelligent online closed-loop balance adjusting system for pumping unit

摘要

The invention relates to an intelligent online closed-loop balance adjusting system for a pumping unit. The system comprises a connecting rod, balance weights, a transmission device, a balance weight displacement adjusting motor and a control device used for driving the motor to adjust and control the weight displacement. The transmission device and the balance weight displacement adjusting motor are arranged above a walking beam. The balance weight displacement adjusting motor is connected with one end of the connecting rod through the transmission device, and the other end of the connecting rod is connected with balance weights. One end of the walking beam away from the horse-head is connected with the middle part of the connecting rod. The invention can realize automatic weight adjustment without shutting the machine down, and the balance weights can be adjusted with the precision of ±10%.

主权项

1. An intelligent online closed-loop balance adjusting system for a pumping unit, wherein the system comprises:
a connecting rod, balance weights, a transmission device, a balance weight displacement adjusting motor and a control device used for driving the motor to adjust and control the displacement of the balance weights, the transmission device and the balance weight displacement adjusting motor are arranged above a walking beam, wherein the balance weight displacement adjusting motor is connected with one end of the connecting rod through the transmission device, the other end of the connecting rod is connected with the balance weights, and one end of the walking beam away from a horse-head is connected with the middle part of the connecting rod, and wherein the system further comprises a first coupling, a second coupling and a support and thrust bearing, and the balance weight displacement adjusting motor being connected with the transmission device through the first coupling, the support and thrust bearing and the second coupling in turn.