Automobile transmission reverse gear anti-wrong device

Abstract

The invention relates to an operating mechanism of an automotive transmission, in particular to an anti-misoperation device for a reverse gear of an automotive transmission. The device is arranged by matching with a gear shifting shaft (2) with a gear shifting block (1) and comprises a fixed plate (3) and an anti-misoperation limiting device, the fixed plate (3) is fixedly connected with a transmission shell, the anti-misoperation limiting device is arranged on the fixed plate (3) in a positioning manner, the gear shifting block (1) extents out from a through hole (4) on the fixed plate (3) and is matched with the anti-misoperation limiting device in action when a fifth gear and the reverse gear are selected to be engaged, and the anti-misoperation limiting device is matched with the fixed plate (3) so as to provide limiting force for the gear shifting block (1) to limit the action when the gear shifting block (1) enters the reverse gear from the fifth gear. The anti-misoperation device for the reverse gear of the automotive transmission is simple in structure, excellent in using effect, low in assembly requirements and capable of effectively avoiding misoperation of engaging the reverse gear from the fifth gear directly and avoiding failure risk due to abrasion.

Description

technical field [0001] The invention relates to an automobile transmission control mechanism, in particular to a reverse gear error prevention device of the automobile transmission. Background technique [0002] For automobile transmissions, the reverse gear lock mechanism is an important safety mechanism. When the vehicle is running, when the fifth gear enters the reverse gear by mistake, the transmission gearbox will have a great impact, resulting in damage to the transmission parts. If the car is damaged, the power will be interrupted, which will affect the safety of driving. For this reason, a reverse gear lock should be installed. The function of the reverse gear lock is to prevent this kind of misoperation and provide the reverse gear lock function when the car is moving forward. At present, the domestic horizontal manual transmission mostly adopts the reverse gear safety mechanism of shift block, blocking plate or reverse gear lock shaft type, such as the Chinese inve...

AI Technical Summary

Problems solved by technology

[0002] For automobile transmissions, the reverse gear lock mechanism is an important safety mechanism. When the vehicle is running, when the fifth gear enters the reverse gear by mistake, the transmission gearbox will have a great impact, resulting in damage to the transmission parts. damage, which will lead to power interruption and affect the safety of driving. For this reason, a reverse gear lock should be installed. The function of the reverse gear lock is to prevent this kind of misoperation and provide the reverse gear lock function when the car is moving forward.

At present, the domestic horizontal manual transmission mostly adopts the reverse gear safety mechanism of shift block, blocking plate or reverse gear lock shaft type, such as the Chinese invention patent CN101251186B discloses a transmission reverse gear lock mechanism, and a reverse gear is arranged on the gear selection shaft Safety block, the reverse safety block has a V-shaped groove, a torsion spring is set on the reverse safety block, the reverse safety block can return to the initial position under the action of the torsion spring, a baffle plate is fixed on the transmission case, and the gear selection shaft When the reverse gear is engaged by the fifth gear, the reverse gear safety block is in the initial position, the block is limited in the V-shaped groove of the reverse gear safety block and the reverse gear cannot be engaged, a reverse gear safety seat is fixed on the gear selection shaft, and the safety A pin is fixed on the seat, the pin interferes with the reverse gear safety block, a torsion spring is placed on the outer cover of the pin, and an elastic pin is arranged on the reverse gear safety seat to limit the rotation of the reverse gear safety block in the circumferential direction. This structure is relatively compact and reliable, but There are many and complicated parts, and the assembly requirements are high. Long-term use is prone to failure of the reverse gear insurance mechanism, causing driving hazards.

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