Transmission thermal sprocket chain plate tensioning hydraulic device

Abstract

The invention discloses a hydraulic device for tensioning a chain plate of a transmission heat chain wheel, comprising a fuel tank, an oil cylinder, a motor pump, a pressure holding chamber, a hydraulic control module, an accumulator, a pressure relay, a pressure relay for an oil cylinder, a control system, and a hydraulic control module Including the second solenoid valve, the motor pump is connected to the oil tank, the oil outlet of the motor pump, the hydraulic control module, the pressure maintaining chamber, and the oil inlet of the oil cylinder are connected in sequence, and the oil outlet of the oil cylinder is connected to the oil tank through the hydraulic control module; the accumulator enters the oil The port is connected to the pressure maintaining chamber, and the oil discharge port is connected to the oil tank; when the oil pressure reaches P2, the pressure relay sends a signal to the control system to start the motor pump; when the oil pressure reaches P1, the pressure relay sends a signal to the control system to shut down the motor pump; When the hydraulic pressure reaches P4, the pressure relay sends a signal to the control system to close the second solenoid valve; when the oil pressure in the oil cylinder reaches P3, the oil cylinder pressure relay sends a signal to the control system to start the motor pump, wherein, P3>P1>P2>P4. The invention provides stable hydraulic power for the oil cylinder.

Description

technical field [0001] The invention relates to a hydraulic device, in particular to a tensioning hydraulic device for a hot sprocket chain plate transmission mechanism with a certain temperature. Background technique [0002] The temperature of the sprocket chain itself and the surrounding environment is relatively high. The tension of some sprocket drive systems and the adjustment of the gap between the upper and lower rails are the key links to ensure the quality of finished products. In the past, the tensioning of the sprocket chain plate transmission system used the weight tensioning method or the simple tensioning method. The weight tensioning method is adopted, the tension force is fixed, and the value of the counterweight is calculated and determined according to the normal heavy-duty working condition. When the tensioning condition of the sprocket and chain plate changes, online real-time adjustment cannot be performed, and the upper and lower rails Clearance is ea...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems in the prior art that the tensioning pressure is fixed, when the tensioning condition of the sprocket chain plate changes, online real-time adjustment cannot be performed, and the gap between the upper and lower rails is easy to change, the present invention provides a thermal transmission sprocket chain plate Tension hydraulic device

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