Electric drive test device to realize the movement of the front cover, rear cover or door switch of the car

Abstract

The invention relates to an electric driving test device for realizing the opening and closing movement of the front cover, the rear cover or the car door of the automobile. An elastic connecting rod, which has a first end and a second end, the first end is connected to the magnetic attachment and the distance between the first end and the second end can be stretched when the car front cover, rear cover or door switch moves adjustment; a drive arm, one end of which is connected to the second end of the elastic link; a motor, a drive head and a reducer, which are all installed on the bracket. The electric driving test device of the present invention has many advantages such as simple structure, reliable operation, convenient installation and no damage to the vehicle body.

Description

technical field [0001] The invention relates to an electric drive test device, in particular to an electric drive test device for realizing the opening and closing movement of an automobile front cover, a rear cover or a car door, and belongs to the field of automobile testing and testing. Background technique [0002] In the prior art, cylinders and external drive methods are generally used to realize the four-door and two-cover automobile experimental device. The following lists some problems in the four-door and two-cover automobile experimental device realized by this type of pneumatic method: [0003] 1) Complex mechanism and difficult installation - due to the large size and weight of the pneumatic cylinder, and the inertia caused by the large mass, the test device in the pneumatic mode needs to use more and thick rods to connect and fix the pneumatic cylinder and Related moving parts, resulting in complex and bloated mechanical structure, while increasing the difficul...

AI Technical Summary

Problems solved by technology

[0003] 1) Complex mechanism and difficult installation - due to the large size and weight of the pneumatic cylinder, and the inertia caused by the large mass, the test device in the pneumatic mode needs to use more and thick rods to connect and fix the pneumatic cylinder and Relevant moving parts, resulting in a complex and bloated mechanical structure, while increasing the difficulty of installation

[0004] 2) Pneumatic method is difficult to control the speed of movement - due to the use of pneumatic method, the impact speed of the test device on the door and cover is uncontrollable, and the position adjustment requirements are high

[0005] 3) The consistency of the test is poor - because the test needs to work for a long time, the existence of factors such as changes in air pressure, looseness of the installation rod (fixture), and the decline in the efficiency of the pneumatic cylinder will cause changes in the movement indicators in the test project, thus leading to a serious decrease in the credibility of the test results

[0006] 4) The reliability of the device is low - because the pneumatic cylinder usually uses rubber to form a closed chamber, due to the low cost and high wear, it is technically difficult to guarantee the reliability of its long-term work, which increases the cost of the device and the corresponding Human resources when changing clothes

[0007] 5) Low temperature reliability is not guaranteed - because the test sometimes needs to be carried out in an environmental chamber, and changes in the ambient temperature have a greater impact on the test results, especially under low temperature conditions, generally using this method cannot guarantee normal operation

[0008] 6) Increased working noise - due to the use of pneumatic methods, it is inevitable to produce outgassing noise, which will affect the working environment

[0009] 7) Long test period - the intake and exhaust of the cylinder prolong the period of the working process

[0010] In addition, sometimes it is necessary to drill holes in the vehicle in order to fix the bracket in the four-door and two-cover vehicle experimental device, which will cause damage to the vehicle and increase the test cost

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