A stepless power-assisted hydraulically controlled shift gearbox

Abstract

The invention provides a continuous assistance hydraulic control gear shifting transmission. The transmission comprises a transmission body, a variable speed chamber, a drive chamber, a transmission shaft and a variable speed mechanism; the variable speed chamber and the drive chamber are arranged in the transmission body, a drive motor is arranged in the drive chamber, the variable speed mechanism and the transmission shaft are arranged in the variable speed chamber, the transmission shaft is connected with the variable speed mechanism through a plurality of gears, one end of the transmission shaft is further mounted in one end of an output shaft through a bearing, and a gear is arranged at the end, located on the transmission shaft, of the output shaft and is engaged with an inclined gear ring on the variable speed mechanism; the variable speed is controlled by rotating a hydraulic pipe, speed changing is more rapid, the whole size of the transmission is reduced, an auxiliary acceleration motor is arranged, through cooperation of a belt wheel capable of automatically adjusting the size of a belt hub, the transmission can achieve continuous variable transmission, the mounting positions of the shafts in the variable speed chamber are provided with oil returning devices, the oil seal effect in the variable speed chamber is better, and the bearing can be better lubricated.

Description

technical field [0001] The invention relates to a stepless power-assisted hydraulic control shift gearbox. Background technique [0002] In the fierce competition in the world automobile market, all countries are developing in the direction of high quality, high reliability, light weight, energy saving and low cost. In terms of materials, it is lightweight, replacing some steel (iron) parts with aluminum alloys, in order to meet the requirements of high-quality, low-cost development of automobiles; in terms of technology, it is scientific, using advanced technology to replace traditional technology to achieve The purpose of improving blank precision, reducing machining allowance, reducing raw material consumption, and reducing cost. To further expand the application of aluminum alloy materials in automobile structures and powertrain systems, the existing preparation methods and manufacturing processes of aluminum alloy castings have been difficult to meet this requirement. ...

AI Technical Summary

Problems solved by technology

The traditional shift shaft assembly includes a shift control housing, a shift shaft and a main sleeve. The main sleeve is fixedly sleeved on the shift shaft. A guide sleeve is longitudinally arranged in the shift control housing. The gear shaft rotates circumferentially and moves axially through the guide sleeve. The main sleeve is located in the shift control housing. The stopper is used for gear selection and shifting, and the stopper includes a one-piece housing, and the end of the housing is rolled with balls that are matched with the main sleeve, and the balls are applied to the stop shaft to stop the force. Since most of the stoppers are integrally formed and the balls are in a state of long-term wear, once the balls are excessively worn and affect the stability of the stopper, the entire stopper must be replaced. On the one hand, the maintenance cost will be increased, and on the other hand, resources will be wasted.

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