The invention discloses an active separation system of an automobile, an automobile body and an auxiliary frame and an active separation bolt of the active separation system. The active separation bolt comprises a head part, a screw rod arranged at the lower end of the head part, an exploder arranged at the upper end of the head part and a pipe cavity extending into the screw rod from the upper end surface of the head part, and the exploder blocks the upper end of the pipe cavity; the active separation bolt further comprises a push rod and an explosive column which are arranged in the pipe cavity. The push rod can move up and down in the pipe cavity and can abut against the bottom wall of the pipe cavity, the explosive column is arranged between the push rod and the exploder, and the exploder is used for detonating the explosive column. When the automobile is collided and reaches a certain collision condition, the explosive column explodes, impact force generated by explosion pushes the push rod to abut against the bottom wall of the push pipe cavity, the screw rod is broken at the bottom wall, and therefore the automobile body and the auxiliary frame are separated. The active separation bolt does not need to accurately control the bolt pre-tightening force, and is easy and convenient to control, simple in overall structure and convenient to machine and implement.
本发明公开了一种汽车、车身与副车架的主动分离系统及其主动分离螺栓,该主动分离螺栓包括头部、设于头部下端的螺杆、设于头部上端的起爆器以及自头部的上端面延伸至螺杆内部的管腔,起爆器封堵住管腔的上端;还包括设于管腔内的推杆和炸药柱,推杆能够在管腔内上下移动且能够抵触管腔的底壁,炸药柱设置在推杆与起爆器之间,起爆器用于引爆炸药柱。当汽车发生碰撞并达到一定碰撞条件时,炸药柱爆炸,爆炸产生的冲击力推动推杆抵推管腔的底壁,使螺杆在底壁处发生断裂,由此实现车身与副车架的分离。该主动分离螺栓无需精准控制螺栓预紧力、控制简便,而且,整体结构简单、便于加工实施。
Active separation system of automobile, automobile body and auxiliary frame and active separation bolt of active separation system
汽车、车身与副车架的主动分离系统及其主动分离螺栓
01.12.2020
Patent
Elektronische Ressource
Chinesisch
IPC: | F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile / F42B EXPLOSIVE CHARGES, e.g. FOR BLASTING , Explosive Ladungen, z.B. für Sprengungen / B62D MOTOR VEHICLES , Motorfahrzeuge |
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