A straddle type monorail train and its end undercarriage

Abstract

The invention provides a straddle-type monorail train and its end underframe, which can withstand relatively large loads, avoid damage caused by stress concentration, and have a long service life. The end chassis of the present invention includes a first draw beam, an end cross beam and a second draw beam connected sequentially from front to back, and both the first draw beam and the second draw beam extend from front to back, so The first draw beam is provided with a coupler mounting seat, and the second draw beam extends obliquely from front to back. The second drawbeam extends obliquely from front to back, which can effectively avoid the installation space of the bogie; the front end of the second drawbeam can be directly connected to the rear end of the first drawbeam, or can be connected with the first drawbeam with a small The horizontal spans are connected. At this time, the traction force can be directly transmitted from the first traction beam to the second traction beam along the longitudinal direction, which optimizes the transmission mode of traction force, thereby avoiding stress concentration and prolonging the service life of the end chassis.

Description

technical field [0001] The invention relates to the technical field of a straddle type monorail train, in particular to a straddle type monorail train and an end chassis thereof. Background technique [0002] With the rapid popularization and promotion of domestic urban rail transit, higher design and use requirements are put forward for the end chassis that constitutes the main part of the drive system. For example, the end chassis used in light rail trains and subways is the central component that connects and transmits the driving force of the bogie to the car body, and is also the key equipment for power transmission to achieve fast and safe driving of the vehicle. [0003] Please refer to figure 1 , figure 1 It is a top view of an arrangement mode of the end underframe of a straddle-type monorail train in the prior art. [0004] Such as figure 1 As shown, in the prior art, the end chassis of a straddle-type monorail train includes an end beam 100 and a longitudinall...

AI Technical Summary

Problems solved by technology

When the longitudinal traction force and / or the longitudinal impact load are too large, the first traction beam 200 cannot withstand the excessive load, and the stress at the connection between the second traction beam 300 and the bolster and side beam under the vehicle body is relatively concentrated, which is easy to cause The stress concentration of the entire end chassis increases the probability of stress damage and significantly shortens the service life of the end chassis

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