Front cross member and front bracket beam connecting structure for cars

Abstract

The invention discloses a front cross member and front bracket beam connecting structure for cars. The front cross member and front bracket beam connecting structure for cars comprises a front cross member (1) and front bracket beams (2). The front bracket beams (2) are disposed at left and right ends of the front cross member (1). The upper end of each front bracket beam (2) is connected with the front cross member (1) through two parallel first bolts (3). A reinforcing plate (4) is disposed at the included angle of the front cross member (1) and each front bracket beam (2) and is fixed to the front cross member (1) and the front bracket beam (2). Strength of connection between the front bracket beams and the front cross member is enhanced through the reinforcing plates, firmness and stability in connection between the front bracket beams and the front cross member are improved greatly, overall shaking of the front bracket beams and the front cross member is avoided effectively, and resonant noise of a cab during acceleration of a car is eliminated. The front cross member and front bracket beam connecting structure for cars has the advantages of reasonable design, simple structure, easiness in modification, low modification cost and the like.

Description

technical field [0001] The invention belongs to the technical field of cars, and in particular relates to the connection structure between the front beam and the front bracket beam of the car. Background technique [0002] The front beam and front bracket beam of the car are located at the front of the car, such as figure 2 As shown, the front beam 1 is used to install the engine suspension, the front bracket beam 2 is distributed at the left and right ends of the front beam 1, the lower end of the front bracket beam 2 is fixed on the subframe, and the front bracket beam 2 The upper end is connected with the front beam 1 through two first bolts 3 arranged side by side. Because the two first bolts 3 connected between the front bracket beam 2 and the front cross beam 1 are on the same line, and the distance is very close, the stability of the connection between the front bracket beam 2 and the front cross beam 1 is relatively poor. During the running of the car, the vibratio...

AI Technical Summary

Problems solved by technology

Because the two first bolts 3 connected between the front bracket beam 2 and the front cross beam 1 are on the same line, and the distance is very close, the stability of the connection between the front bracket beam 2 and the front cross beam 1 is relatively poor. During the running of the car, the vibration of the engine is transmitted to the front beam 1, which will cause the front bracket beam 2 and the front beam 1 to shake as a whole, especially when the car accelerates, there will be resonance noise in the cab

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