The function of the thrust rod is to prevent bridge displacement. Generally, a straight thrust rod can only prevent the front and rear axles from shifting forward and backward, while a V-shaped thrust rod can not only prevent the front and rear axles from shifting forward and backward, but also prevent left and right displacement. When a truck turns, the middle and rear axles may experience left and right displacement, leading to friction between the plate spring and the tire, and in severe cases, it can lead to premature tire wear and even lead to severe accidents such as tire explosions.
The lateral thrust bar is a torsion bar spring made of spring steel, which is shaped like a "U" and is placed horizontally on the front and rear walls of the truck. In the middle of the thrust rod body, it is hinged to the frame with a sleeve, and the two ends of the thrust rod are respectively fixed on the left and right suspensions. Only when the vehicle body undergoes vertical movement and the suspension deformation on both sides is the same, the lateral thrust rod will not function.
When the car body tilts, the suspension jumps on both sides are inconsistent, causing the lateral thrust rod to twist, and the elasticity of the rod body becomes the resistance that continues to cause the truck to roll, ultimately playing a role in lateral stability.
Extended data: thrust rods are mainly used on single axle or double rear axle heavy trucks with dependent suspension of trucks or buses, connecting the frame and the axle. Their purpose is mainly to overcome that leaf spring can only transmit vertical force and lateral force surface can not transmit traction, braking force and corresponding reaction torque. At present, various types of thrust rods are widely used on trucks and buses produced by major domestic engine manufacturers.
The thrust rod is fixed with a fixed claw angle (fixing the axle head seat), and the stabilizer rod is fixed with the left and right wheel harnesses (fixing the distance between the left and right wheels).
It includes a rod body, with rod heads at both ends, and a support shaft connected to the truck double bridge on the rod head. Its improvement lies in the polyurethane elastomer between the rod head and the support shaft.
The deformation generated by the connection between the truck thrust rod and the double bridge after being subjected to force is concentrated on the polyurethane elastomer. Due to the strong elasticity of the polyurethane elastomer, the deformation can be restored. Therefore, the connection between the rod head and the double bridge in three-dimensional coordinates has a great degree of freedom of movement, and the service life of the thrust rod is more than three times that of well-known technology.