Parking device and speed changer

A transmission, unlocking position technology, applied in transmission control, elements with teeth, belts/chains/gears, etc., can solve problems such as complex structures

Pending Publication Date: 2020-10-23
GUANGZHOU AUTOMOBILE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a parki...

Method used

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  • Parking device and speed changer
  • Parking device and speed changer

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Embodiment Construction

[0034] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0035] Such as figure 1 and figure 2 As shown, the parking device provided by an embodiment of the present invention includes a ratchet wheel 1, a pawl 2, a rotating shaft 3, a pawl return member 4, a locking mechanism 5 and a driving mechanism 6, and the pawl 2 is rotated by the rotating shaft 3 It is connected to the case of the transmission and can switch back and forth between the unlocked position and the locked position. The ratchet 1 is relatively fixedly arranged on the input shaft of the transmission, and one end of the ratchet 2 faces one end of the ratchet 1...

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Abstract

The invention provides a parking device and a speed changer. The parking device comprises a ratchet wheel, a ratchet pawl, a ratchet pawl returning component, a locking mechanism and a driving mechanism, wherein the ratchet pawl is rotatably connected to a shell of the speed changer and can be switched between an unlocking position and a locking position back and forth, the ratchet wheel is relatively fixedly arranged on an input shaft or an output shaft of the speed changer, the side, facing the ratchet wheel, of one end of the ratchet pawl forms a clamping tooth, the side, facing back to theratchet wheel, of the clamping tooth forms a pressure bearing portion, the locking mechanism comprises a cam shaft, a position-limiting plate, a cam and an energy storage component, the position-limiting plate is fixed to the cam shaft, the cam is rotatably arranged on the cam shaft in a sleeving manner, and the energy storage component is connected between the position-limiting plate and the cam. The parking device is simple and compact in structure, convenient to install and good in overall performance, the parking reliability can be effectively improved, furthermore, the parking device iseasy to fabricate and control and low in production cost, and large-scale promotion and application can be performed.

Description

technical field [0001] The invention belongs to the technical field of automobile transmissions, in particular to a parking device and a transmission. Background technique [0002] When the car is parked on a level road, the driver only needs to pull on the handbrake to brake the whole car. However, if the car is parked on a steeper slope, the handbrake alone may fail. Ordinary manual transmissions can ensure that the vehicle does not slip by relying on the engine to back-drag by putting into a gear, but for electric vehicles, measures must be taken to prevent accidents from happening, so a parking device is required to brake the transmission system. [0003] The parking device is a safety device that prevents the vehicle from slipping accidentally. It acts on the transmission of the vehicle and locks the drive system of the transmission, so that the vehicle can be parked at a certain position or even on a slope reliably and without time limit. Therefore, the parking devic...

Claims

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Application Information

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IPC IPC(8): F16H63/34
CPCF16H63/3425
Inventor 李东陈嗣国谢杰能
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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