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Shaft actuator and differential

A technology for actuators and shafts, applied in differential transmissions, belts/chains/gears, mechanical equipment, etc., it can solve the problems of easy interference of electromagnetic fields, accidental start of differential locks, and inability to start normally, and reaches the scope of use. Wide, not accidental, easy to install

Active Publication Date: 2019-11-08
金华市安索传动科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There is an actuator used to control the opening and closing of the differential lock, which controls the opening and closing of the differential lock through the change of the electromagnetic field. Although the response speed is fast, the electromagnetic field is easily disturbed, causing the differential lock to fail. There are serious security risks due to the problem of starting or failing to start normally

Method used

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  • Shaft actuator and differential
  • Shaft actuator and differential
  • Shaft actuator and differential

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Such as Figure 1-11As shown, a shaft actuator includes a housing 1, a movable part 3 and a sealed chamber 6. The movable part 3 is installed on the housing 1 and can move back and forth relative to the housing 1. Between the housing 1 and the movable part 3 A sealed cavity 6 is formed between them. When the pressure in the sealed cavity changes, the movable part will move back and forth relative to the housing 1 under the drive of the pressure, so as to realize the control of the opening and closing of the differential lock; in order to facilitate the sealing cavity When the pressure changes, a through hole 11 is opened on the housing 1, an internal thread is provided on the through hole, a connector 14 is connected to the through hole, and a rubber gasket 15 is installed between the connector and the housing. , to play a better sealing effect; a pipe 17 is installed on the connector, and a connecting sleeve 16 is also installed at the position where the pipe is connec...

Embodiment 2

[0064] Such as Figure 12-20 As shown, a differential includes a differential body 7, a differential lock 8 and an actuator, and the actuator is the above-mentioned shaft actuator, wherein the differential body 7 includes a first part body 71, The second body 72, the gear carrier 74, the planetary gear 75 and the side gear 76; and the differential lock 8 includes a lock 82 and a third body 83; the first body, the second body and the third body The three are connected by a plurality of long screws to realize the anti-rotation cooperation between the three; the gear frame 74 is installed in the differential body 7 to form a non-rotation cooperation with the differential body; the planetary gear bearing is connected to the frame of the gear frame Four planetary gears are installed on the shaft; two side gears 76 are respectively installed on the front and rear sides of the gear frame 74, which are respectively called the front side gear and the rear plate shaft gear, which can ro...

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Abstract

The invention discloses a shaft actuator and a differential. The shaft actuator comprises a shell, a movable piece and a sealing cavity, wherein a first limit through groove is formed in the shell, the movable piece can move back and forth relative to the shell, a third limiting through groove is formed in the movable piece, and the sealing cavity can be used for driving the movable piece to moveback and forth by changing internal pressure. According to the shaft actuator, due to arrangement of the sealing cavity, the movable piece can quickly respond, interference from external factors is avoided, the actuator can stably control a differential lock to be opened and closed, the safety is higher, accidents are not prone to occur, the failure rate is low, the installation is convenient, theadaptability is high, and the application range is wide.

Description

technical field [0001] The invention belongs to the technical field of motor vehicles, and in particular relates to an actuator for a shaft and a differential. Background technique [0002] The car differential can make the left and right (or front and rear) drive wheels rotate at different speeds; it is mainly composed of left and right side shaft gears, two planetary gears and a gear rack; When driving on the road, the left and right wheels roll at different speeds, that is, to ensure the pure rolling motion of the driving wheels on both sides; while the ordinary differential can allow the left and right wheels to rotate at different speeds, but when one of the wheels is idling, the other The wheels on good pavement also don't get torque and the car loses power to move, in which case the differential doesn't work, the two wheels are connected at this point and power can at least go to the other side The wheels enable the car to get the driving power to get out of trouble;...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H48/27
CPCF16H48/27
Inventor 郑吉龙
Owner 金华市安索传动科技有限公司