An integrated mechanism for shifting and parking of an automatic transmission

Abstract

The invention discloses a gear shifting and parking integrated mechanism of an automatic transmission. The gear shifting and parking integrated mechanism comprises a motor, a shifting fork, a joint sleeve, an output shaft and a transmission mechanism, wherein the motor is fixedly connected with the shifting fork through a transmission part, the shifting fork is detachably connected to the joint sleeve, the shifting fork drives the joint sleeve to move up and down, the output shaft is sleeved with a gear hub, the gear hub is sleeved with a spline hub, the spline hub is detachably provided withthe joint sleeve, the output shaft is sleeved with the transmission mechanism, the transmission mechanism is located above the joint sleeve, a second joint tooth is arranged below the joint sleeve, abase is arranged at the bottom of the output shaft, the output shaft sleeves the base through a bearing, and the second joint tooth is connected with the base. According to the gear shifting and parking integrated mechanism of the automatic transmission, three actions of shifting, neutral gear parking are simultaneously completed by sharing one motor, and the gear shifting and parking integrated mechanism is simple in structure, small in occupied space and low in cost; and the gear shifting parking action can be quickly and conveniently completed, the gear shifting and parking efficiency can be improved, and the stability and the safety of automobile running are ensured.

Description

technical field [0001] The invention relates to the technical field of automatic transmissions, in particular to an integrated mechanism for shifting and parking of automatic transmissions. Background technique [0002] In the current prior art, shifting is to drive the shift fork action tooth sleeve through the shifting motor to perform the shifting action, while parking is to complete the parking action through the parking motor to drive the pawl and ratchet. And the effect of parking, but two motors are required to work during the action process, and the parking is relatively smooth within a certain speed, there will be some impact during the parking process, and the pawl is in the gearbox It will occupy a certain position in the middle, which will increase the size of the gearbox housing. At the same time, the position of the parking motor should also be considered at the outer end of the gearbox to avoid interference with other components during the assembly process. Su...

AI Technical Summary

Problems solved by technology

[0002] In the current prior art, shifting is to drive the shift fork action tooth sleeve through the shifting motor to perform the shifting action, while parking is to complete the parking action through the parking motor to drive the pawl and ratchet. And the effect of parking, but two motors are required to work during the action process, and the parking is relatively smooth within a certain speed, there will be some impact during the parking process, and the pawl is in the gearbox It will occupy a certain position in the middle, which will increase the size of the gearbox housing. At the same time, the position of the parking motor should also be considered at the outer end of the gearbox to avoid interference with other components during the assembly process. Such a shift mechanism and The parking mechanism is not only complicated in structure, but also takes up a large space and is expensive. At the same time, it has poor effect in the process of shifting and parking, which reduces the efficiency of shifting and parking, reduces the driving comfort of the driver, and is not conducive to ensuring Therefore, there is an urgent need for an integrated mechanism for shifting and parking of an automatic transmission that has a simple structure, low cost, and can quickly and easily complete the shifting and parking action. The integrated shifting and parking mechanism of the automatic transmission The mechanism can not only improve the efficiency of shifting and parking, improve the driving comfort of the driver, but also ensure the stability and safety of the car

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