Automatic gearbox oil changing machine

Abstract

The invention discloses an automatic gearbox oil changing machine, and relates to an automobile maintenance tool. The automatic gearbox oil changing machine comprises a sealing bottom, a first pressure sensor, a second pressure sensor, a first pipe and a second pipe, wherein the first pressure sensor is arranged on the sealing bottom, the second pressure sensor is arranged on the sealing bottom, afirst cavity is defined by one end of the first pipe and the sealing bottom, the first pipe is nested in the second pipe, a second cavity is defined by the first pipe, the sealing bottom and the second pipe, the first pressure sensor communicates with the first cavity, and the second pressure sensor communicates with the second cavity. The automatic gearbox oil changing machine has the advantagesthat the first pressure sensor and the second pressure sensor can reduce an influence degree of external vibration, external airflow and bubbles in a liquid, and liquid metering errors can be reduced.

Description

technical field [0001] The invention relates to a vehicle maintenance tool, in particular to an automatic gearbox oil changer. Background technique [0002] For the daily maintenance of the car, not only the engine needs regular maintenance, but the gearbox is no exception. The gearbox is an important part of the powertrain. The maintenance of gearboxes has always been neglected. Transmissions, like engines, require regular maintenance. If the gearbox is not maintained regularly, it will also cause damage to the gearbox. The gearbox lubricating oil has a certain shelf life, and high temperature wear will occur when the gearbox is working, which will gradually cause the oil in the gearbox to lose its lubricating and cooling effects. [0003] In the prior art, an equal-volume oil changer for changing automatic transmission oil for automobiles usually uses a load cell or a flow meter to measure the oil. [0004] The technical defect of the oil change solution using a weigh...

AI Technical Summary

Problems solved by technology

[0004] The technical defect of the oil change scheme using a weighing sensor in the prior art is that the weighing sensor is easily affected by external vibrations, resulting in large measurement errors

[0005] The technical defect of the oil change scheme using the flow meter in the prior art is that the flow meter is easily affected by the air existing in the pipeline, which makes the measurement error larger

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