Automatic ejection and reset device of dead brake hook

Abstract

The invention discloses an automatic ejection and reset device of a dead brake hook. The automatic ejection and reset device comprises a brake wheel, a gear and dead brake integration hook, a transmission mechanism, a power mechanism and an arc fixed plate, wherein the gear and dead brake integration hook comprises a connecting rod and a gear, a hook head is bent at one end of the connecting rod,the hook head can make contact with the brake wheel and can be clamped into a dovetail groove of the brake wheel, and the other end of the connecting rod is fixedly connected with the gear; the transmission mechanism is fixed on the arc fixed plate; the gear is rotationally connected with a fixed rotating shaft on the arc fixed plate and is in transmission connection with the transmission mechanism; and the power mechanism can drive the gear to rotate through the transmission mechanism, so that the gear and dead brake integration hook can automatically switch between the reset state and the to-be-brake state. The switching process is operated flexibly and conveniently, safety and reliability are realized, and time and labor are saved.

Description

technical field [0001] The invention relates to the technical field of oilfield pumping units, in particular to an automatic ejection and reset device for a dead brake hook. Background technique [0002] During the routine maintenance of the beam pumping unit, according to the requirements of the oilfield operating regulations, the parking brake must put the dead brake hook in the waiting state. In this state, the operator climbs to the reduction box through the ladder and manually resets the dead brake hook. The state is toggled to the waiting state, but the brakes often fail due to various reasons. Moreover, the dead brake hook in the waiting state automatically falls into the dovetail groove on the brake rim, forming a rigid stuck state. After the maintenance work is completed, the dead brake hook is released. Climb the ladder to the reduction box, use a crowbar to pry out the dead brake hook, or turn the pumping unit belt to take out the dead brake hook. The whole proce...

AI Technical Summary

Problems solved by technology

Frequently moving the dead brake hook up and down the reduction box is time-consuming and laborious, increases production costs, and brings hidden dangers to the safety of operators. Some operators are afraid of trouble and do not move the dead brake hook to the waiting state according to the regulations. prone to safety accidents

Images