Finished automobile vibration testing device and finished automobile vibration testing platform comprising same

Abstract

The invention discloses a finished automobile vibration testing device which comprises a fixed bracket, wherein the fixed bracket is connected with a vibration rod (11) which can move linearly up and down relative to the fixed bracket, and the lower end part of the vibration rod (11) is connected with an idler wheel (12). The finished automobile vibration testing device also comprises a motor (13), wherein the output shaft of the motor (13) is connected with a transmission member matched with the idler wheel (12) so as to be convenient for driving the vibration rod (11) to vibrate up and down; the transmission member is a cam, and the cam is connected with the output shaft of the motor (13) and rotates with the output shaft; and the idler wheel (12) is supported on the cam. The structure design of the device can effectively reduce the loss of the motor (13), thereby remarkably prolonging the service life. In addition, the invention also discloses a finished automobile vibration testing platform comprising the finished automobile vibration testing device.

Description

technical field [0001] The invention relates to the technical field of vehicle vibration testing, in particular to a vehicle vibration testing device. In addition, the present invention also relates to a vehicle vibration test platform comprising the vehicle vibration test device. Background technique [0002] In the development process of increasingly diversified auto parts, the shortening of the vibration test time of the whole vehicle is of great significance to the development of new products. In the vehicle vibration test, the actual road test can be replaced by motion simulation to meet more comprehensive road conditions, so that the test time can be shortened as much as possible and the test cost can be reduced. [0003] Please refer to figure 1 , figure 1 It is a structural schematic diagram of a typical vehicle vibration test device in the prior art. [0004] The vehicle vibration test device in the prior art includes a platform 1'1, which is supported by a line...

AI Technical Summary

Problems solved by technology

[0007] First, every time the vibrating rod 1'4 moves up and down, the servo motor 1'6 needs a forward rotation motion and a flipping motion, so the servo motor 1'6 suffers a large loss and has a short service life;

[0008] Second, the nut of the screw nut mechanism 1'8 needs to be repeatedly rotated on the screw rod, and the screw rod needs to drive the platform 1'1 to reciprocate and linearly move, so the loss of the screw nut mechanism 1'8 is relatively large and the service life is short;

[0009] Third, each profiling boss 1'3 can only realize the movement of one amplitude of the vibrating rod 1'4. When the vibrating rod 1'4 needs to realize the movement of different amplitudes, it is necessary to prepare multiple profiling bosses 1'3 , so the cost is higher;

[0010] Fourth, every time the amplitude is switched, the profiling boss 1'3 needs to be disassembled, which is time-consuming and laborious, and the operation is inconvenient;

[0011] Fifth, the lateral distance and longitudinal distance between the vibrating rods 1′4 cannot be changed, so the vibration test can only be carried out for vehicles with a fixed wheelbase and wheelbase, and the test range is limited

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