AT speed variable box large displacement rotor type internal meshing gear pump

Abstract

The invention relates to an AT speed variable box large displacement rotor type internal meshing gear pump which can meet the requirements of an automatic transmission for a hydraulic energy device, and provides the technical reserve for heavy duty vehicle automatic transmission. The AT speed variable box large displacement rotor type internal meshing gear pump comprises a flow distribution plate, a flow distribution board, a pump body, an outer rotor, a sliding bearing, a connecting shaft, an input shaft, a sealing ring and an inner rotor, the outer circle of the right end of the connecting shaft is pressed in the hole of the flow distribution board, the hole of the flow distribution board is mounted on the outer circle of a raised shaft shoulder of the connecting shaft, the bottom plane of the flow distribution board is closely adjoined with the upper plane of the flow distribution board, the oil channel groove of the flow distribution board is connected with the oil channel groove of the flow distribution plate, the pump body is arranged on the outer circle of the connecting shaft, the inner rotor is mounted in the outer rotor, the outer rotor and the inner rotor are in a chamber which is formed by the upper plane of the flow distribution board and the inner bottom plane of the pump body, the inner rotor is supported on the outer circle of the connecting shaft by the sliding bearing, the input shaft sleeves the connecting shaft, and a transmission fork on the right end of the input shaft is inserted into a groove which is arranged on the inner hole of the inner rotor. The AT speed variable box large displacement rotor type internal meshing gear pump is suitable for mass production.

Description

technical field [0001] The invention belongs to the technical field of transmission, and relates to an AT transmission large-displacement rotor-type internal meshing gear pump. Background technique [0002] The oil supply system of a traditional transmission with a hydraulic torque converter adopts the structure of two independent oil pumps to provide stable pressure and flow for the transmission hydraulic system and provide compensation oil for the hydraulic torque converter. This arrangement has complex structure and size, high machining accuracy, high cost, large volume, and high noise, and cannot meet the modular design requirements that the oil pump in the hydraulic system is highly integrated in the transmission. With the development of vehicle technology, the power, speed and load of vehicles are gradually increasing, and the requirements for vehicle transmission technology are also increasing. Therefore, in the design of high-power AT transmission automatic transmiss...

AI Technical Summary

Problems solved by technology

This arrangement has complex structure and size, high machining accuracy, high cost, large volume, and high noise, and cannot meet the modular design requirements that the oil pump in the hydraulic system is highly integrated in the transmission.

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