Integral positioning jib for bogie

Abstract

The invention relates to a bogie of a rail vehicle, particularly relates to a positioning device used for the bogie of the railway vehicle, and belongs to the technical field of machinery. According to an integrated positioning rotary arm used for the bogie, an axle box body and a clamping hoop are simplified, the structure is simpler and more compact, the integrated positioning rotary arm can be directly in press fitting with an integrated bearing at the axle end, constituting parts of the whole structure are few, the decomposition and the assembly are easy, the adjustment and the maintenance are convenient, and the process and the tool are greatly simplified. In addition, the structural design is simple, the integrated casting is adopted, and light weight and low cost are realized while the safe reliability of the structure is ensured. More importantly, the light weight of the positioning device of a whole wheel set is realized by adopting the integrated positioning rotary arm, the unsprung mass of the bogie is effectively reduced by about 80kg, and the safety and the stability can be favorably improved under the condition of ensuring excellent comfort level. The integrated positioning rotary arm used for the bogie can be taken as a mature structural scheme to be widely applied to a bogie system of the rail traffic vehicle.

Description

technical field [0001] The invention relates to a bogie of a rail vehicle, in particular to a positioning device for a bogie of a rail vehicle, and belongs to the technical field of machinery. Background technique [0002] The bogie is one of the most important components in the rail vehicle structure, and its main functions are as follows: 1) The bogie is used on the vehicle to increase the load, length and volume of the vehicle, and to increase the speed of the train to meet the needs of the development of railway transportation; 2) Ensure that under normal operating conditions, the car body can be reliably seated on the bogie, and the rolling of the wheels along the rail is converted into translational motion of the car body running along the line through the bearing device; 3) Support the car body, bear and transmit Various loads and forces from the car body to the wheel or from the wheel rail to the car body, and make the axle load evenly distributed. 4) To ensure the ...

AI Technical Summary

Problems solved by technology

The positioning arm is the key part connecting the wheel-to-axle box and the frame device. At present, the positioning arm used in the bogie is mostly a split structure, mainly including the positioning arm, the axle box body and the clamping hoop (such as patent No. 200620034960.0 , a Chinese utility model patent named "wide-gauge welded bogie"), the disadvantage of the split structure is that the unsprung mass is heavy, there are many components, the disassembly and assembly process is complicated, it consumes a lot of manpower and material resources, and the production efficiency is low

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