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AT automatic gearbox emergency gear locking device

A technology of automatic transmission and locking device, which is applied in transmission control, components with teeth, belts/chains/gears, etc., can solve problems such as vehicle damage, affecting vehicle maneuverability, and gearbox damage, and achieve operational Convenience, the effect of returning to the position after emergency gear shifting

Pending Publication Date: 2021-12-28
CHONGQING BEIBEN TRANSMISSION MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, AT automatic transmissions have been used in small batches on wheeled vehicles. In order to ensure that the vehicle can continue to drive after the transmission (control system, circuit) fails, it is necessary to add an emergency gearing device to the transmission. It is installed at the outer end of the gearbox. The existing emergency gear shifting is very easy to cause damage to the gearbox when the user does not operate it properly, causing unpredictable damage to the vehicle and affecting the maneuverability of the vehicle.

Method used

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  • AT automatic gearbox emergency gear locking device
  • AT automatic gearbox emergency gear locking device
  • AT automatic gearbox emergency gear locking device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] This embodiment discloses an emergency gear locking device for an AT automatic transmission, which includes a spring leaf 1 and an emergency outer pull arm 2 .

[0030] see figure 1 , the lower end of the spring piece 1 is fixed on the oil pan of the gearbox with a plurality of bolts, the spring piece 1 is connected with a fixed pin 3, the connection method is welding or riveting, and the fixed pin 3 is perpendicular to the plate surface of the spring piece 1 And close to the upper end of spring leaf 1.

[0031] The emergency outer pull arm 2 is connected with the emergency shift shaft by a flat key, and the emergency shift shaft is screwed into the nut 5 to limit the axial position of the emergency outer pull arm 2. The emergency shift shaft is located directly below the spring leaf 1 and is connected to the spring The board surface of the sheet 1 is vertical, and the emergency outer pull arm 2 is located on the side of the spring sheet 1 facing away from the gearbox ...

Embodiment 2

[0040] This embodiment discloses an emergency gear locking device for an AT automatic transmission, which includes a spring leaf 1 and an emergency outer pull arm 2 .

[0041] see figure 1 , the lower end of the spring leaf 1 is fixed on the oil pan of the gearbox, the spring leaf 1 is connected with a fixed pin 3, the fixed pin 3 is perpendicular to the plate surface of the spring leaf 1 and is close to the upper end of the spring leaf 1.

[0042] The lower end of the emergency pull arm 2 is connected to the emergency shift shaft. The emergency shift shaft is located directly below the spring leaf 1 and is perpendicular to the plate surface of the spring leaf 1. The emergency pull arm 2 is located on the spring leaf 1 and faces away from the gearbox. side of the body.

[0043] The emergency outer pull arm 2 is provided with an eccentric hole 201 and a pin hole 202 for inserting the fixing pin 3, the length direction of the eccentric hole 201 is consistent with the length dir...

Embodiment 3

[0049] The main structure of this embodiment is the same as that of Embodiment 2, further, refer to figure 2 The side of the emergency pull arm 2 facing the spring leaf 1 is provided with two grooves 4, and the two grooves 4 are respectively located on both sides of the pin hole 202. The design of the groove 4 can ensure The force on the spring leaf 1 will not be too large, which is conducive to realizing the return of the AT automatic transmission after the emergency gear is engaged.

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PUM

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Abstract

The invention discloses an AT automatic gearbox emergency gear locking device. The AT automatic gearbox emergency gear locking device comprises a spring piece and an emergency outer pulling arm. The lower end of the spring piece is connected with an oil pan, and the spring piece is connected with a fixing pin. The lower end of the emergency outer pulling arm is connected with an emergency gear shifting shaft, and the emergency outer pulling arm is provided with an eccentric hole and a pin hole which are communicated. When the emergency gear engaging function is not needed, the fixing pin is inserted into the pin hole. When the emergency gear engaging function is needed, a basic hand tool is inserted into the eccentric hole, the fixing pin is pulled out of the pin hole, and the emergency outer pulling arm is rotated in the designated direction according to needs. When the emergency gear engaging function needs to be stopped, the emergency outer pulling arm is rotated, and the fixing pin is inserted into the pin hole again. By means of the structure, it can be guaranteed that locking is conducted in time when the emergency gear engaging function of an AT automatic gearbox is not used, and the situation that the gearbox and a vehicle are damaged due to abnormal operation, and the maneuvering performance of the wheeled vehicle is affected is effectively avoided; and meanwhile, the emergency gear engaging function of the AT automatic gearbox can be achieved through the basic hand tool, and operation is convenient.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to an emergency gear locking device for an AT automatic transmission. Background technique [0002] At present, AT automatic transmissions have been used in small batches on wheeled vehicles. In order to ensure that the vehicle can continue to drive after the transmission (control system, circuit) fails, it is necessary to add an emergency gearing device to the transmission. It is arranged at the outer end of the gearbox, and the existing emergency gear shifting is very easy to cause damage to the gearbox when the user does not operate it properly, causing unpredictable damage to the vehicle and affecting the maneuverability of the vehicle. Contents of the invention [0003] The purpose of the present invention is to provide an AT automatic transmission emergency gear locking device to solve the problems in the prior art. [0004] The technical solution adopted to realize the purpose o...

Claims

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Application Information

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IPC IPC(8): F16H61/22F16H61/12
CPCF16H61/22F16H61/12F16H2061/226F16H2061/1272
Inventor 王虎周友国平子维付卫芳王旭黄进张安东吴志清谭超罗运江
Owner CHONGQING BEIBEN TRANSMISSION MFG
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