Rotational-inertia-adjustable car braking detection platform flywheel
A moment of inertia and vehicle braking technology, which is applied in vehicle testing, measuring devices, testing of machine/structural components, etc., can solve the problems of a large number, cumbersome operation, and inability to accurately match the quality of the vehicle, achieving a wide range of applications, The effect of improving detection accuracy
Inactive Publication Date: 2013-04-10
CHANGAN UNIV
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Problems solved by technology
For different models, this method needs to prepare various quality flywheel combinations, the number is large, and the number of flywheel discs needs to be artificially added or subtracted. The operation is cumbersome, and it is difficult to achieve an accurate correspondence between the moment of inertia and the mass of the vehicle to be tested, which increases the detection error
In addition, because the mass of each disk of the flywheel combination is fixed, within a certain range, the vehicle mass that the flywheel combination can simulate is segmented and discrete, and cannot accurately match the vehicle mass, thus increasing the detection data. error, which reduces the detection accuracy
Method used
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[0022] In order to illustrate the technical features of the solution more clearly, the solution will be described below in conjunction with the accompanying drawings and specific implementation methods.
[0023] Comply with the above technical solutions, such as figure 1 and figure 2 As shown, a vehicle brake test bench flywheel with adjustable moment of inertia includes a rim 1 and a hub 3, the rim 1 and the hub 3 are connected by a spoke tube 2, and a spoke shaft 4 is arranged in the spoke tube 2 A spoke planetary wheel 6 is installed on one end of the spoke shaft 4 extending into the hub 3, a spoke block 5 is installed on the spoke shaft 4, and the spoke shaft 4 is assembled in the spoke tube 2 through a spoke shaft bearing 7; A speed reducer 8 is arranged on the side, and a stepping motor 82 and a gear transmission pair are arranged in the speed reducer 8. The stepping motor 82 meshes with the driving gear 85 in the gear transmission pair through a worm gear and worm, a...
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The invention discloses a rotational-inertia-adjustable car braking detection platform flywheel which comprises a wheel rim, a wheel hub, the wheel rim and the wheel hub are connected with each other through spoke cylinders, spokes are arranged inside the spoke cylinders, spoke planet gears are arranged at one ends of the spokes, the ends are inserted into the wheel hub, spoke blocks are arranged on the spokes, the spokes are assembled inside the spoke cylinders through spoke bearings, a reducer is arranged on one side of the wheel hub, a stepping motor and a gear drive pair are arranged inside the reducer, the stepping motor is meshed with a driving gear of the gear drive pair through worms and worm gears, a reducer output shaft is further arrange inside the reducer, a driven gear of a second gear drive pair is assembled on the reducer output shaft, a sun gear is arranged at the other end of the reducer output shaft, and the sun gear is meshed with the spoke planet gear. The rotational-inertia-adjustable car braking detection platform flywheel increases detection precision of a car performance detection platform and is capable of simulating real quality, inertia and energy of motion of a car which is under brake performance detection, so that a simulating device of the detection platform can better reflect a real braking situation.
Description
technical field [0001] The invention relates to a vehicle brake detection device, in particular to a flywheel of a vehicle brake test bench with adjustable moment of inertia. Background technique [0002] The rapid development of electronic technology makes it more and more applied in the field of automobiles, and various new technologies appear in automobiles. With the development of society, the total mileage of expressways increases year by year, and the conditions of road surfaces at all levels are getting better and better. The proportion of traffic accidents caused by poor braking performance of vehicles is quite large. Today's car owners pay more attention to the safety performance of the vehicle when buying a car. Of course, the braking performance is the most critical. Excellent braking performance is also a major selling point of each model. Therefore, domestic and foreign automobile manufacturers have invested a lot of material resources and energy in research an...
Claims
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IPC IPC(8): G01M17/007
Inventor 武历颖徐同强
Owner CHANGAN UNIV