Transverse and longitudinal load loading mechanism based on special simulated axle device

Abstract

The invention relates to a transverse and longitudinal load loading mechanism based on a special simulation axle device, and belongs to the field of force application loading devices for a railway vehicle bogie frame strength test. The transverse and longitudinal load loading mechanism comprises two sets of limiting clamping ring groups, an axle box built-in axle, two conventional vertical loadingactuating cylinders C, two conventional transverse loading actuating cylinders A, two profiling simple herringbone axle box mechanisms, two transverse and longitudinal bidirectional loading axle seatmechanisms, two transverse loading connecting blocks, two vertical loading connecting seats and two profiling axle box spacing adjusting sleeves. According to the transverse and longitudinal load loading mechanism, the axle box built-in axle obtains complete self-shaft rotation freedom degree, so that the axle can still keep self-shaft rotation in the process of bearing vertical and transverse stress of a load strength test, so that the load strength test can more perfectly simulate the real stress state of the real wheel pair during rail operation, thereby improving the precision and the quality of dynamic acting force parameters obtained by the test.

Description

technical field [0001] The invention belongs to the field of force loading devices for railway vehicle bogie frame strength tests, and in particular relates to a transverse and longitudinal load loading mechanism based on a special simulated axle device. Background technique [0002] Since the bogie frame of a railway vehicle is the core component that bears the weight of the car body and transmits traction and braking power, after the theoretical design is completed, it is usually necessary to carry out a load strength test on the bogie frame of the initial production. When carrying out the load-bearing test on the key structure of the frame, it is usually necessary to apply force simultaneously along the Z-axis vertical, the X-axis longitudinal direction and the Y-axis transverse direction of the frame, so as to continuously simulate the comprehensive stress of the train under normal operating conditions. Force environment, so as to test the rationality of the mechanical s...

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Problems solved by technology

[0008] In order to solve the problem of insufficient layout space for a new type of axle box built-in axle due to its special structure and new spindle size design, resulting in two conventional vertical loading cylinders C and one conventional lateral reaction rod in the old scheme A cannot be loaded between the two side beams at the same time, so that the loading test cannot be carried out; and solve the problem that the old simulated axle mechanism cannot simulate the self-axis rotation state of the axle, which makes the load strength test unable to simulate and obtain the self-axis rotation state of the wheel axle To solve the technical problem of the dynamic force parameters generated by the frame, the present invention provides a frame spring seat load loading device based on the simulated axle mechanism

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