Motor-vehicle parking locking mechanism
A technology for motor vehicles and parking locks, applied in mechanical equipment, transmission control, components with teeth, etc., can solve the problems of low efficiency and parking accuracy of parking lock mechanism, difficult layout, complex structure, etc. , to achieve the effect of simple and efficient transmission of shifting force, easy to manufacture, simple and compact structure
Active Publication Date: 2014-09-03
CHONGQING CHANGAN AUTOMOBILE CO LTD
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Problems solved by technology
[0003] Most of the existing parking lock mechanisms have the problems of complex structure, difficult layout, and high cost; some compact parking mechanisms use a large number of sliding friction pairs, so that the efficiency and parking accuracy of the parking lock mechanism are low
Method used
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Embodiment Construction
[0021] The present invention will be further described below in conjunction with accompanying drawing.
[0022] Such as figure 1 As shown, a parking lock mechanism for a motor vehicle according to the present invention includes a parking gear 5, a parking pawl 6, a fixed shaft 3, a return spring 4 and an actuating mechanism, and the parking gear 5 cannot rotate relatively The parking pawl 6 is installed on the fixed shaft 3 and can rotate around it. The return spring 4 is set on the fixed shaft 3, and one end acts on the parking pawl 6. , and the other end is fixed on the case of the gearbox to provide restoring force for the parking pawl 6 to return from the locked position to the unlocked position. The actuating mechanism is used to drive the parking pawl 6 to change and move between the locked position and the unlocked position, such as figure 1 , figure 2 , image 3 and Figure 5 As shown, the actuating mechanism includes a parking spring 10 and a gear position posit...
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The invention discloses a motor-vehicle parking locking mechanism. The motor-vehicle parking locking mechanism comprises a parking gear wheel, a parking pawl and an actuating mechanism. The actuating mechanism comprises a parking spring and a gear positioning plate which is fixedly connected with a gear shift shaft. The actuating mechanism further comprises a first rolling wheel and a second rolling wheel, wherein the gear shift shaft is sleeved with the first rolling wheel which can rotate around the gear shift shaft, and the second rolling wheel is supported by the gear shift shaft through a rolling wheel support and can rotate around the axis of the second rolling wheel. The rolling wheel support can rotate around the gear shift shaft, the gear shift shaft is sleeved with the parking spring, one end of the parking spring acts on the gear positioning plate, and the other end of the parking spring acts on the rolling wheel support. The diameter of the second rolling wheel is smaller than that of the first rolling wheel, the axis of the second rolling wheel is parallel to the axis of the first rolling wheel, and the cylindrical face of the second rolling wheel makes contact with the cylindrical face of the first rolling wheel. The motor-vehicle parking locking mechanism is capable of bearing a high load and compact in structure.
Description
technical field [0001] The invention relates to a parking lock mechanism of a motor vehicle. Background technique [0002] The motor vehicle parking lock mechanism is used to lock the motor vehicle when the vehicle is stationary, and belongs to a safety device. The locking of the motor vehicle is realized by fixing and locking the transmission shaft of the vehicle in the direction of rotation. When the parking lock mechanism is actuated, due to the high loads acting on the components involved, at this time, if the vehicle is still running, the load will be applied by the parking lock mechanism to the drive shaft where the vehicle is locked , therefore, the components of the parking lock mechanism must have sufficient reliability. [0003] Most of the existing parking lock mechanisms have the problems of complex structure, difficult layout, and high cost; some compact parking mechanisms use a large number of sliding friction pairs, so that the efficiency and parking accuracy...
Claims
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IPC IPC(8): F16H63/34
CPCF16H63/3425F16H63/3433
Inventor 庞子陵柯绪文夏灵
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD