本发明涉及一种普通乘用车白车身扭转刚度测试加载装置,包括试验平台、旋转T形梁、前悬架约束夹具、后悬架约束夹具,以及从上到下依次相连的延伸支架、上铰链连接座、力传感器、加载器和底座,延伸支架固设在旋转T形梁的水平梁一端,上铰链连接座与延伸支架的固定点距离旋转T形梁的旋转轴的横向水平距离L为1000mm,力传感器的上下两端的连接均为球铰,并具备力值显示功能,加载器能在垂直方向上实现空间尺寸的稳定增大或缩小,从而带动普通乘用车白车身绕旋转T形梁的旋转轴顺时针扭转或逆时针扭转。适用于普通乘用车白车身及类似车型使用,控制精度更高、更简便、加载方便、力矩准确。

The invention relates to a torsion stiffness test loading device for the body-in-white of an ordinary passenger car, which comprises a test platform, a rotating t-shaped beam, a front suspension restraint clamp and a rear suspension restraint clamp, and an extending bracket, an upper hinge connecting seat, a force sensor, a loader and a base connected in turn from top to bottom. The extending bracket is fixedly arranged at one end of a horizontal beam of a rotating t-beam, the distance between the fixed point of the upper hinge connecting seat and the extension bracket and the rotating axis of the rotating t-shaped beam is 1000mm. The connection of the upper and lower ends of the force sensor is spherical hinge and has the function of displaying the force value, the loader can increase or decrease the space dimension in the vertical direction, so as to drive the ordinary passenger car body-in-white to twist clockwise or counter-clockwise around the rotation axis of the rotating t-beam. The utility model is suitable for the use of the body-in-white of ordinary passenger cars and similar vehicles, and has the advantages of higher control precision, more simple operation, convenient loading and accurate torque.