Detector for sealing performance of hydraulic actuating element of automatic speed changer and detection method thereof

Abstract

The invention relates to the technical field of detection equipment for automobile maintenance, in particular to a detector for the sealing performance of a hydraulic actuating element of an automatic speed changer and a detection method of the detector. The detector comprises a case, a hydraulic device, a heater and a pressure distributor, wherein the right upper part of the case is provided with an industrial computer and a display device, the left upper part of the case is provided with an electric control device, and the lower right part of the case is provided with an oil tank; the left side of the oil tank is provided with a temperature transmitter and a heater; the right side of the oil tank is externally provided with a motor connecting coupler, a pressure adjusting plate and an oil pump in the oil tank; a motor is provided with a frequency converter; a signal input line of the frequency converter is connected with a signal control end of the computer; the electric control device consists of a pressure-distribution electromagnetic valve; a signal control line of the electromagnetic valve is connected with the signal control end of the computer; a signal line of the heater is connected with the signal control end of the computer; and the computer is provided with a pressure transmitter signal device and a temperature transmitter signal device. With the adoption of the detector and the detection method, the working efficiency and the accuracy are improved.

Description

[technical field] [0001] The invention relates to the technical field of automobile maintenance and testing equipment, in particular to a sealing performance testing machine and a testing method for hydraulic actuators of automatic transmissions. [Background technique] [0002] Cars are used more and more frequently in the family, and car maintenance issues have become more important. From the long-term maintenance experience of automatic transmissions, it has been found that a considerable proportion of the damage to automatic transmissions is due to the decline in the sealing of hydraulic actuators in automatic transmissions. Yes, due to the decrease of sealing performance, the working pressure of the transmission is abnormal; however, due to the complex structure of the oil supply channel of the hydraulic actuator of the automatic transmission, key components such as oil supply rings and pistons are often inside the components, invisible and intangible, resulting in hydrau...

AI Technical Summary

Problems solved by technology

[0002] Cars are used more and more frequently in the family, and car maintenance issues have become more important. From the long-term maintenance experience of automatic transmissions, it has been found that a considerable proportion of the damage to automatic transmissions is due to the decline in the sealing of hydraulic actuators in automatic transmissions. Yes, due to the decrease of sealing performance, the working pressure of the transmission is abnormal; however, due to the complex structure of the oil supply channel of the hydraulic actuator of the automatic transmission, key components such as oil supply rings and pistons are often inside the components, invisible and intangible, resulting in hydraulic leakage after wear Unobservable; at present, due to the lack of effective detection of the sealing performance of the hydraulic actuators of the automatic transmission, it often occurs that the automatic transmission shifts unevenly or even slips after the transmission is repaired, and personal safety is threatened

Images