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Self-adapting device for absorbing impact energy

A technology of impact energy and absorption device, which is applied in the field of vehicle engineering, can solve the problems such as the inability to guarantee the impact thread of the threaded rod, the damage and failure of the threaded casing, and achieve the effect of automatic adaptation, easy adjustment and improvement of energy absorption capacity.

Inactive Publication Date: 2009-02-11
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
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Problems solved by technology

The threaded rod in the threaded shearing type automobile collision energy-absorbing device has higher metal strength than the threaded pipe. If it is an oblique collision, the colliding vehicle first touches the end of the threaded rod, and the front part of the threaded rod bends, and along the diameter of the threaded casing, The threaded casing is sheared in the opposite direction, causing damage to the threaded casing. It cannot be guaranteed that the threaded rod will impact the thread along the axis of the threaded casing, and it will not be able to absorb a huge amount of energy when it collides, and the entire energy-absorbing device will fail.
[0004] To sum up, there are still very dangerous hidden dangers in the safety design of automobiles, and the structure of the impact energy absorbing device must be improved

Method used

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  • Self-adapting device for absorbing impact energy
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  • Self-adapting device for absorbing impact energy

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Embodiment Construction

[0028] As shown in Figure 1, the adaptive impact energy absorbing device of the present invention includes a threaded sleeve 1, an impact rod 2, a motor 3 and a bumper assembly 4, one end of the impact rod 2 is set in the threaded sleeve 1, and the other end protrudes The threaded sleeve 1 is connected to the output end of the motor 3. Such as Figure 5 As shown, the bumper assembly 4 includes a flange 41, a sleeve 42, a bearing 43 and a bumper 44, the flange 41 and the sleeve 42 are connected together by screws, the flange 41 is connected to the bumper 44 by bolts, and the motor 3 machine The body is fixed on the bumper 44, the impact rod 2 is supported on the sleeve 42 through the bearing 43, and the end of the impact rod 2 is connected with the output end of the motor 3. At different vehicle speeds, the motor 3 drives the impact rod 2 to rotate in a circumferential direction, causing the impact rod 2 to move axially to realize the telescopic function. The extension distance...

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Abstract

An adaptive impact energy absorber for the collision between two cars is composed of a bumper module, a motor fixed to said bumper module, a screw sleeve tube with a screwed segment at one end and a through hole segment at another end, and an impact rod in said screw sleeve tube and with a screwed impact sleeve and an extended-out end connected to the output axle of said motor.

Description

technical field [0001] The invention relates to the field of vehicle engineering, in particular to an adaptive impact energy absorbing device capable of adapting to different speed states and different impact directions. Background technique [0002] The impact energy absorbing device is widely used in the safety design technology of automobiles. The traditional impact energy absorbing device adopts the crushing energy-absorbing mechanism. The metal deforms and buckles to absorb the impact energy. This kind of structure does not have very high requirements on the layout type, but the collision energy absorption capacity can only be pre-designed and cannot be adjusted; after the collision, it will cause a large area of ​​deformation of the vehicle body, and the maintenance cost is high. [0003] There is a thread shear type automobile collision energy absorbing device, which utilizes the characteristic that the shear destructive force of each thread is basically constant, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R19/16
Inventor 雷正保颜海棋
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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