The invention relates to the technical field of automobile speed limiting devices, and discloses a speed limiting device for an automobile. The device comprises a driving wheel and a brake wheel, wherein the driving wheel and the brake wheel are in transmission connection through a chain, a ratchet wheel is arranged in the middle of the brake wheel, ratchets are arranged on the outer ring of the ratchet wheel, movable blocks are arranged on the left side and the right side of the ratchet wheel, a pawl is arranged below the two movable blocks and above the brake wheel, and hinge holes I are formed in one sides of the pawl and the movable blocks. The driving wheel drives the brake wheel to rotate; when at a normal rotating speed, the pawl is not in contact with the ratchets on the ratchet wheel, and free rotation can be conducted; when the rotating speed is suddenly too high, due to the effect of centrifugal force, the two movable blocks on the two sides of the ratchet wheel can rotate outwards through the centrifugal effect of a flail block, then deflector rods at the bottom of the movable blocks drive a contact block, and the head of the pawl makes contact with the ratchets on theratchet wheel, so that the brake wheel stops rotating, the vehicle is protected against forward driving, and the safety of people is protected.
本发明涉及汽车限速装置技术领域,且公开了一种汽车用限速装置,包括驱动轮和制动轮,驱动轮和制动轮之间通过链条传动连接,制动轮的中部设有棘轮,棘轮的外圈设有棘齿,棘轮的左右两侧设有活动块,两个活动块的下方在制动轮的上方设有棘爪,棘爪和活动块的一侧均开有铰接孔一。本发明通过驱动轮带动制动轮转动,当处于正常转速使,棘爪不与棘轮上的棘齿接触,可以自由转动,当转速突然过快使,由于离心力的作用,棘轮两侧的两个活动块经过甩块的离心作用,会向外转动,然后活动块底部的拨杆带动接触块,使棘爪的头部与棘轮上的棘齿接触,从而使制动轮停止转动,从而保护车辆不再向前行驶,保护人们的安全。
Speed limiting device for automobile
一种汽车用限速装置
2020-10-13
Patent
Electronic Resource
Chinese
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