Lubricating and cooling structure for high-power durability test of gear

Abstract

The invention discloses a lubricating and cooling structure for a high-power durability test of a gear. The lubricating and cooling structure comprises an oil well pump, a radiator, an oil storage tank, a conveying pump and a jet lubricating device which are sequentially connected, wherein the oil well pump communicates with an oil storage area at the bottom of a casing and is used for pumping lubricating oil; the jet lubricating device communicates with an oil path at the upper part of the casing; the lubricating oil in the oil storage area is pumped into the radiator by the oil well pump forcooling; and the cooled lubricating oil is conveyed to the jet lubricating device by the conveying pump and is jetted to a first bearing group or a second bearing group. The lubricating and cooling structure has the advantages that the temperature of the oil in the casing can be reduced, and the high-power fatigue test efficiency of the gear is improved.

Description

Technical field [0001] The invention relates to the field of lubrication and cooling devices, in particular to a transmission device and a lubrication cooling system of a test device thereof, and in particular to a lubrication and cooling structure used for gear high-power durability test. Background technique [0002] The middle and tail reducers used in helicopters bear complex loads and transmit power-to-weight ratios. Splash lubrication structures are often used. During the high-power fatigue test of a certain type of helicopter's middle and tail reducer gears, in order to truly simulate the force and use of the gears, the gears are directly mounted on the middle and tail reducers, and the load is increased for the test, such as figure 1 As shown, figure 1 The driving wheel and the driven wheel in the meshing transmission, the A end is the input end, the B end is the output end, the driving wheel and the driven wheel are connected to the casing through the first bearing group ...

AI Technical Summary

Problems solved by technology

[0003] Due to the heavy load and long duration of the fatigue test of the gear, which is far greater than the maximum load and service time in its service load spectrum, the temperature rise of the reducer during the test rises sharply, and the internal oil temperature of the reducer rises to 120°C in a short time Above, exceeding the upper limit of the normal operating temperature of the reducer (100°C), the test is often forced to stop and cool down shortly after the test starts, and the number of abnormal wear and tear of the test piece bearings in advance is greatly increased, resulting in low efficiency of the gear high-power fatigue test , the cost increases, and affects the authenticity and reliability of the gear fatigue test results

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