100% low-floor trolley car non-powered bogie frame

Abstract

The invention discloses a 100% low-floor trolley car non-powered bogie frame comprising a base plate and a beam and two side beams which are welded on the base plate; a traction rod mounting seat is welded on the outer side of the beam; the side beam is provided with a secondary spring seat, a braking clamp seat, a track brake guide holder, a primary suspension device mounting seat, a transverse and vertical absorber mounting seat; four groups of axle box pull rod are installed at the lower end of the side beams; four transverse stop seats are installed on the inner webs of the two beams; the side beams are provided with braking clamp pull rod seats. The 100% low-floor trolley car non-powered bogie frame invention has compact structure, beautiful appearance and reliable performance, which can satisfy the requirements of mounting interfaces of 100% low-floor trolley car such as primary suspension device, secondary suspension device, traction rod, vertical and transverse stopping, vertical and transverse vibrator, and braking system. The structure feature of the frame is that the arrangement is symmetric about the center point of the frame and the frame can be used within 180 DEG.

Description

Technical field [0001] The invention relates to the field of trams, in particular to a 100% low-floor tramcar non-power bogie frame. Background technique [0002] With the continuous advancement of science and technology and the continuous improvement of people's quality of life, people have higher requirements for the convenience of travel. The reality is that more and more vehicles are driving, urban roads are built and denser, and roads are widened and widened. However, road congestion is still serious. The travel time of urban residents is increasing, and the city is facing more and more serious exhaust gas, Noise and other pollution. [0003] In order to alleviate the problems of urban traffic congestion and pollution, many cities have adopted speeding up subway construction as the main way to relieve urban traffic congestion. However, the subway system has problems such as high investment costs and long construction periods. The low-floor modern tram is a medium-to-low-capa...

AI Technical Summary

Problems solved by technology

[0010] The main structure of the current 100% low-floor tram bogie is basically that the two side beams and the two cross beams are independent small parts, and then they are connected together by welding; the brake caliper seat and its connection with the frame There are many connecting welds between them; since the bogie is a component with relatively complicated stress, if there are too many welds, it is more likely to cause stress concentration, which will lead to the failure of the frame

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