Pressure control valve with lubrication function

Abstract

The invention discloses a pressure control valve with a lubricating function. The pressure control valve includes a valve body. A control valve element and an overflow valve element are arranged in an inner cavity of the valve body. The control valve element is connected with a first spring through a pressure regulation ring. The first spring is connected with a first spring base. An inlet of the control valve element is communicated with an oil inlet. A first outlet of the control valve element is communicated with a first oil outlet. The first oil outlet is connected with a radiator through an oil pipe. A second outlet of the control valve element is communicated a second oil outlet connected with a part mechanism to be lubricated. Oil enters the control valve element from the oil inlet and enters the radiator through the first oil outlet and the oil pipe; the oil flows back into the control valve element through the radiator and then enters the part mechanism to be lubricated through the second oil outlet and the oil pipe. The pressure control valve can perform cooling treatment through the radiator, in addition, the cooled oil can be used for lubricating a torque converter, a gearbox and other part mechanisms, and the lubricating effect is more remarkable.

Description

technical field [0001] The invention relates to a pressure control valve, in particular to a pressure control valve with lubricating function. Background technique [0002] Pressure control valves are suitable for most mechanical equipment, and pressure control valves also need to be installed in loaders. A: When the engine is turned off, close the oil inlet 11 to connect with the oil outlet 12 and the lubricating oil port 13, and keep the oil inlet 11 and the oil in the front oil circuit to fill up; B: After starting the system, close the oil inlet 11 There is a certain back pressure (first pressure), which improves the efficiency of the engine output torque to the actuator. C: By controlling the second pressure, when the oil temperature of the oil inlet is low, part of the oil directly flows to the lubricating oil port 13, and part of the oil passes through heat dissipation to the lubricating oil port 13, and when the oil temperature is high, the oil inlet 11 and the lubr...

AI Technical Summary

Problems solved by technology

[0003] Moreover, when the loader shifts gears, it will involve the cooperation between the mechanisms. The mechanisms will generate heat when they cooperate with each other. As the running time prolongs, the temperature will continue to rise. When the temperature is too high, the loader will prone to failure

In order to avoid the occurrence of the above situation, it is necessary to install a radiator on the loader for heat dissipation, but if the temperature of the radiator itself is too high for a long time, it is easy to shorten the service life

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