Exhaust brake valve for engine

Abstract

The invention discloses an exhaust brake valve for an engine. The exhaust brake valve for the engine comprises a control cylinder, a supporting plate, a valve body, and a cover; a piston push rod of the control cylinder is connected to a first valve plate and a second valve plate in the valve body through a control mechanism; the control mechanism comprises a first connecting rod, a second connecting rod, a first rotating shaft, and a second rotating shaft, wherein the first rotating shaft and the second rotating shaft are symmetrically arranged relative to the piston push rod; a first rockerarm is installed on the first rotating shaft, the first rocker arm is connected to the first connecting rod through a first movable pin, the first connecting rod is connected to the piston push rod, and the first rotating shaft is connected to the first valve plate; a second rocker arm is installed on the second rotating shaft, the second rocker arm is connected to the second connecting rod through a second movable pin, the second connecting rod is connected to the piston push rod, and the second rotating shaft is connected to the second valve plate; and a leaf spring is arranged on the side edge of the first connecting rod. According to the exhaust brake valve for the engine, the problems of failure of the control mechanism and eccentric grinding and jamming of the piston push rod are effectively solved, operation is simple and convenient, reliability is high, and the sealing performance is good.

Description

technical field [0001] The invention relates to the technical field of exhaust brakes, in particular to an engine exhaust brake valve, which is mainly suitable for solving the problems of failure of a control mechanism and eccentric wear and pinning of a piston push rod. Background technique [0002] The current exhaust brake valve mainly pushes the piston push rod to move by manipulating the compressed air in the cylinder, and then pushes a rocker arm fixedly connected with the valve plate rotating shaft to rotate, thereby realizing the closing of the brake valve plate. When the compressed air pressure is removed, the brake valve plate is reset under the action of the exhaust pressure of the engine, which in turn drives the rotation shaft of the valve plate, thereby pushing the rocker arm to rotate, and realizing the reset of the piston push rod; the tail of the control cylinder is fixed on the On the support plate of the steering cylinder, during the whole process, the ste...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects and problems existing in the prior art that the operating mechanism is prone to failure, the piston push rod is prone to partial wear and the pinning, and to provide an engine that can effectively solve the problems of the operating mechanism failure, piston push rod partial wear and pinning. exhaust brake valve

Images