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Integrated framework and bogie

An integral and framed technology, which is applied in bogies, railway car body parts, railway transportation, etc., can solve the problems of poor fatigue performance of carbon fiber interface design, poor fatigue resistance performance, and great difficulty, so as to avoid Low fatigue strength, improved bogie performance, and reduced noise

Active Publication Date: 2015-04-29
ZHUZHOU ELECTRIC LOCOMOTIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The side beam of this frame is a box-shaped cavity structure, and the motor, gearbox, brake device, etc. are suspended on the bogie beam. The structure is also complicated, and the fatigue resistance and comfort are not good.
At the same time, because the frame beam hangs the motor, gearbox, and braking device to bear dynamic loads, the interface design is complex and the bearing capacity is complicated. Carbon fiber composite materials and steel materials are two completely different materials, and it is difficult to connect them together. The interface design and fatigue performance are poor, so the frame beam must retain the original steel structure; in addition, the frame of the patent application must be interchanged with the existing frame, so that the modification of the frame beam structure is limited
Finally, although the patent application guarantees the strength of the structure, the quality is still relatively heavy, and the fatigue resistance cannot be improved

Method used

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  • Integrated framework and bogie
  • Integrated framework and bogie

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Embodiment 1

[0029] A monolithic framework such as figure 1 and 2 As shown, it is mainly composed of two side plates 13 and a beam 14, the side plate 13 and the beam 14 are an integrated structure, the side plate 13 and the beam 14 are made of resin-based carbon fiber composite materials or ceramic-based carbon fiber composite materials, Wherein the side plate of the frame is V-shaped, and the side plate 13 is provided with a series of spring mounting seats 15, a series of spring mounting seats 16, etc., which mainly carry the weight of vehicles and passengers. The first series of springs 6 are fixed by bolts and positioning holes; the second series of springs 3 Fixed in the middle of the side plate, the positioning hole 18 fixes the secondary spring 3 on the frame, and can be rotated slightly around the positioning hole 18 to increase the lateral deflection of the secondary spring to adapt to the small curve passing and high-speed operation of the bogie. The crossbeam 14 is provided with...

Embodiment 2

[0034] A bogie, comprising the frame 1 as described in Embodiment 1, a series of springs 6 are housed in the first series spring mount 15, and a second series spring 3 is housed in the second series spring mount 16; The axle box pull rod assembly 4 is connected with the axle box 5, the motor mount is connected with the motor 12 through the motor suspension assembly 11, and the gear box hanger is connected with the gear box 9 through the gear box suspension rod assembly 10; the motor 12 , the gear box 9 and the braking assembly 8 are all arranged on both sides of the beam 14 and between the two side plates 13 .

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Abstract

The invention discloses an integrated framework and a bogie. The integrated framework comprises two side plates and a beam connected with the two side plates. The side plates and the beam are of a single-layer platy integrated structure and all made of carbon fiber composites. Primary spring installation bases are arranged at the two ends of each side plate, and a secondary spring installation base is arranged in the middle of each side plate. A swing bolster is arranged above the secondary spring instillation bases. A journal box pull rod base, transverse stop bases, a motor installation base, a gear case hanging base and a brake base are arranged on the swing bolster. The bogie comprises the framework. A steel structure is replaced with the carbon fiber composite framework, and by means of a hanging motor, a gear case and a brake device which are arranged in a body-suspended mode, the weight of springs and the weight of the bogie can be effectively reduced, and the fatigue resistance and the riding comfort are improved.

Description

technical field [0001] The invention relates to the technical field of frame structures of rail transit vehicles, in particular to an integral frame and a bogie. Background technique [0002] The traditional frame adopts a steel structure welded overall load-bearing structure, the side beam is a box structure, and the motor, gearbox, brake device, etc. are suspended on the bogie. The structure is relatively complex, the fatigue resistance is not good, and the noise transmission path is increased. , reducing the comfort of the vehicle. Chinese invention patent application CN201310491256.2 discloses a side beam of a bogie frame. The side beam is used to form a bogie frame for a rail vehicle after being installed and matched with a metal crossbeam. Specifically, the side beam includes a side beam body and a The buffer parts on the side beam body, where the buffer parts include a primary buffer part (or called a primary buffer part) and a secondary buffer part (or called a seco...

Claims

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Application Information

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IPC IPC(8): B61F5/52
CPCB61F5/52B61F5/523Y02T30/00
Inventor 段华东杨颖蒋忠城罗显光
Owner ZHUZHOU ELECTRIC LOCOMOTIVE CO
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