Heavy-duty car dual-drive tandem testbed

A technology for double-drive axles and heavy-duty vehicles, which is applied in vehicle testing, machine/structural component testing, and measuring devices. Problems such as the aggravation of spring force and mass can achieve the effect of increasing the cost of test equipment and occupying space, reducing the difficulty of installation and adjustment of test pieces, and saving costs

CN108871805AInactive Publication Date: 2018-11-23CHINA AUTOMOTIVE ENG RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-11-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention discloses a heavy-duty car dual-drive tandem testbed. The heavy-duty car dual-drive tandem testbed comprises an integration drive head and four integration loading heads, the integration drive head comprises a driving head pedestal, a variable frequency drive motor, a speed reduction and twisting increasing transmission box and a system power input test mechanism. Each integration loading head comprise one loading head pedestal, one variable frequency loading motor, one speed raising and twist decreasing transmission box and one bridge single-way output power test mechanism, the two integration loading heads are symmetrically arranged at left and right sides of a tested medium bridge, the other two integration loading heads are symmetrically arranged at left and rightsides of a tested rear bridge, the tested medium bridge is connected with the tested rear bridge through a rear bridge input test mechanism, and the integration drive head is connected with a power input end of the tested medium bridge; and all the test mechanism comprise couplers, sensors and couplers which are connected in series in order. The heavy-duty car dual-drive tandem testbed can perform test verification of the medium bridge and the rear bridge at the same time, and is specially suitable for the heavy-duty car drive system test with an inter-axle differential between the medium bridge and the rear bridge; and moreover, the heavy-duty car dual-drive tandem testbed is a rack building block combination structure to facilitate rapid assembling and lapping and extend the applicationrange of the testbed.
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Description

technical field

[0001] The invention belongs to the technical field of automobile testing systems, and in particular relates to a test bench for measuring double drive axles of heavy-duty automobiles, which can simultaneously test the middle axle and the rear axle of heavy-duty automobiles. Background technique

[0002] In the actual use of heavy-duty vehicles, the damage ratio of drive axle is relatively high, which is not only related to the harsh environment of use, but also related to the test verification method in the design stage of drive axle. Heavy-duty off-road vehicles are driven by the middle and rear axles. Due to the high power and large output torque, independent test benches have been used in China to test and verify the middle and rear axles.

[0003] This method of separately testing the middle axle and rear axle is seriously inconsistent with the actual working conditions of the vehicle. During the vehicle development stage, it is impossible to conduct rea...

Examples

Embodiment Construction

[0018] Below by embodiment and in conjunction with accompanying drawing, the present invention will be further described:

[0019] like figure 1 As shown, a heavy-duty vehicle double drive axle test bench is mainly composed of an integrated driving head A and four integrated loading heads B.

[0020] The integrated drive head A is equipped with a drive head base 1, on which a variable frequency drive motor 2, a deceleration-up-torque transmission box 3 and a system power input testing mechanism 4 are sequentially installed in series. The integrated drive head A is used to simulate the power drive system of heavy vehicles. The system power input testing mechanism 4 is used to test the system power input.

[0021] The integrated loading head B is equipped with a loading head base 5, on which a frequency conversion loading motor 6, a speed-up and torque-down transmission box 7 and a bridge unilateral output power testing mechanism 8 are installed in series. The integrated load...