A quick connection device for off-line loading test of automobile transmission

Abstract

The invention relates to a fast connecting device used for offline loading test of an automotive transmission. The fast connecting device comprises a coupling flange, a flange cover and a pin shaft extending out of the end surface of the coupling flange; a spring B is propped against the part between the pin shaft and the flange cover; a spring A is propped against the part between the flange cover and a loading transmission shaft; buffer butting between a differential mechanism connecting shaft and the loading transmission shaft is realized through the spring A and the spring B, so that the impact caused by fast butting of a hydraulic oil cylinder can be completely overcome, and adaptability to high-speed transmission can be realized; the differential mechanism connecting shaft serves as a plug for oil plugging in a differential mechanism; the differential mechanism is not needed to be provided with another plug. The fast connecting device provided by the invention is used for limiting the loading transmission shaft and the pin shaft through a central step hole and a plurality of peripheral step holes, compact in structure, reasonable in design and easier in ensuring assembly precision, has lightweight advantages, can also prevent the transmission and other related parts from impact damage while the efficiency of a whole assembly line is improved by 70 percent and can be widely applied to the fields of automobiles, new energy electric vehicles and other gear drives.

Description

technical field [0001] The invention relates to testing equipment for a transmission of an automobile, in particular to a quick connection device for an off-line loading test of a transmission of an automobile. Background technique [0002] With the rapid development of my country's automobile industry, the localization process of key components is accelerating. As the core component of automobiles, transmissions have the ability to independently design and mass-produce in China. In the manufacturing process of the transmission, the off-line loading test to detect the noise, shift performance and sealing of the transmission is the key process to ensure the quality of the transmission, and it is also the bottleneck process of the tens of millions of yuan assembly line. As long as the testing efficiency of the transmission loading test is improved through design innovation and process improvement, it is equivalent to improving the efficiency of the entire assembly line (the as...

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Problems solved by technology

[0006] Chinese patent 201420654091.6 discloses a flexible driving device at the output end of the loading table of an automobile transmission. In this scheme, the connection between the transmission and the output driving head is mainly guided by its transmission pin, although the inner end of the transmission pin is provided with a spring, which can control the transmission and the output drive head. The connection of the drive head has a certain buffering effect, but after the drive pin is completely inserted into the pin hole corresponding to the drive pin on the docking positioning flange, there is still a large impact between the end face of the docking positioning flange and the end face of the drive head. limited cushioning

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