A kind of automatic switching device of inertia wheel

Abstract

The inertia wheel automatic switching device provided by the present application uses the hollow shaft as the rotating shaft of the inertia wheel, uses the central drive shaft passing through the interior of the hollow shaft as the inertia source, and uses the inner spline shaft and the first outer spline connected to the central drive shaft. The switching of the coordination mode between the key shaft and the second external spline shaft connected with the hollow shaft realizes the switching of inertia loading and unloading. The advantages of the device are that the device does not use a shifting fork structure with friction loss, the equipment has a long service cycle and a low failure rate, and does not use a lubricating oil device and an oil return device configured for the shifting fork structure, so the structure is simpler.

Description

technical field [0001] The application belongs to the technical field of vehicle brake detection equipment, and in particular relates to an automatic switching device for inertia wheels. Background technique [0002] Vehicle braking performance is usually tested by an inertial test bench. The inertial test bench uses the rotational inertia of the inertia wheel to simulate the translational inertia of the actual braking process. In the existing inertial test bench, the size of the inertia wheel rotational inertia is different by replacement or combination. The mass inertia wheel is realized. According to different test conditions, it is necessary to adjust the loading and unloading of the inertia wheel inertia. However, due to the large weight of the inertia wheel, it is very inconvenient to manually disassemble and switch. Generally, it is fixed with bolts and flanges. The connection between the inertia wheel and the main shaft is realized by the movement of the gear sleeve,...

AI Technical Summary

Problems solved by technology

[0002] Vehicle braking performance is usually tested with an inertial test bench. The inertial test bench uses the moment of inertia of the inertial wheel to simulate the translational inertia of the actual braking process. In the existing inertial test bench, the size of the moment of inertia of the inertial wheel can be changed by replacing or combining different The quality of the inertia wheel is realized. For different test conditions, it is necessary to adjust the loading and unloading of the inertia wheel inertia. However, due to the heavy weight of the inertia wheel, it is very inconvenient to switch through manual disassembly. The inertia test bench of the prior art, its inertia wheel Generally, it is fixed by bolts and flanges. The connection between the inertia wheel and the main shaft is realized by the movement of the gear sleeve, and the movement of the gear sleeve needs to be realized by a shift fork structure. Contact, and during the rotation of the gear sleeve, the shift fork will rub against the gear sleeve, so the friction loss of the shift fork is inevitable. The friction loss of the shift fork directly affects the position of the shift fork to move the gear sleeve along the axis of the main shaft, and then Affects the accuracy and stability of the connection between the inertia wheel and the main shaft

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