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bogie

A bogie and frame technology, which is applied in the direction of the device for lateral relative movement between the bogie, the bottom frame and the bogie, the installation of the axle box, etc., can solve the problems of increasing construction difficulty, construction cost, and small offset. Improve curve passing ability, damp vibration, good vibration isolation effect

Active Publication Date: 2019-03-19
CRRC TANGSHAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The defect of the prior art is that, during the curvilinear movement of the vehicle, only the lateral displacement of the air spring is used to realize the rotation and lateral movement between the vehicle body and the bogie, and the allowable offset between the two is small, which cannot be smoothly through a small turning radius
Therefore, the safe operation of vehicles using this bogie requires a larger turning radius of the track, which increases the construction difficulty and construction cost in complex terrain conditions

Method used

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Experimental program
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Effect test

Embodiment 1

[0048] figure 1 It is a three-dimensional schematic diagram of a bogie according to Embodiment 1 of the present invention; figure 2 for figure 1 The front view (viewed from the side of the direction of travel); image 3 for figure 1 top view of Figure 4 for image 3 A-A to the sectional view. Figure 5 It is a three-dimensional schematic diagram of the frame of the bogie in Embodiment 1; Figure 6 for Figure 5 A top view of the frame shown; Figure 7 for Figure 6 B-B direction sectional view; Figure 8 for Figure 5 Front view of the frame shown (viewed from the side in the direction of travel). Figure 9 It is a three-dimensional schematic diagram of the bolster of the bogie of Embodiment 1; Figure 10 for Figure 9 A three-dimensional schematic diagram of another direction of ; Figure 11 for Figure 9 main view of Figure 12 for Figure 11 top view of Figure 13 for Figure 11 left view of .

[0049] Such as Figure 1-Figure 4 shown, and refer to...

Embodiment 2

[0066] Figure 14 It is a three-dimensional schematic diagram of the bogie of Embodiment 2 of the present invention, in Figure 14 In the second embodiment shown, the difference from the first embodiment is that the third suspension is replaced by the first helical steel spring 35 figure 1 In the first air spring 21 shown in Embodiment 1, obviously, there are multiple first helical steel springs 35, which are distributed symmetrically at both ends of the bolster 2. Figure 14 In the shown embodiment, above the bolster 2, two first helical steel springs 35 are arranged side by side at the left and right ends respectively.

Embodiment 3

[0068] Figure 15 It is a three-dimensional schematic diagram of a bogie according to Embodiment 3 of the present invention; Figure 16 yes Figure 15 The front view (viewed from the side in the direction of travel). The difference from the first embodiment is that the structures of the second suspension and the third suspension in the third embodiment are different. Such as Figure 15 with Figure 16 As shown, in the third embodiment, the third suspension adopts multiple second laminated rubber stacks 221, the second suspension adopts multiple second coiled steel springs 351, the second laminated rubber stacks 221 and the second coiled steel springs 351 are multiple, symmetrically distributed at both ends of the bolster 2 . exist Figure 15 with 16 In the shown embodiment, above the bolster 2, two second laminated rubber stacks 221 are arranged side by side at the left and right ends respectively; below the bolster 2, two second helical steel springs 351 are arranged s...

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Abstract

The invention discloses a bogie, which includes a frame and a bolster. The frame includes two side beams parallel to each other and a cross beam connected to the middle of the side beams. A first suspension is provided between the two ends of the side beams and the axle box. A secondary suspension is provided between the bottom of the bolster and the beam, and a tertiary suspension connected with the vehicle body is provided above the bolster. The bogie of the present invention is equipped with a bolster, and on the basis of the original two-stage suspension, a one-stage suspension is added between the lower part of the bolster and the beam to realize functional separation, and the third suspension above the bolster is only used to bear Lateral displacement function, the secondary suspension under the bolster is only used to undertake the rotation function, which can further increase the displacement and rotation angle between the car body and the bogie when the vehicle passes through the curve, and improve the vehicle's ability to pass through the curve. The combination of the three-series suspension can play a good role in vibration isolation and noise reduction, effectively attenuate the vibration of the wheel and rail, and improve the ride comfort.

Description

technical field [0001] The invention relates to the technical field of high-speed rail vehicle bogies, in particular to a bogie with three-suspension suspension. Background technique [0002] As an important part of the rail vehicle, the bogie is used to carry the vehicle, provide traction, damping, and guide, and the power bogie is also used to provide the power to drive the rail vehicle forward. [0003] Bogies can be divided into bogies with bolsters and bogies without bolsters. The bogies in the prior art generally include several major components such as frame, wheelsets, and axle boxes, wherein the axle boxes are suspended by primary suspension (Primary Suspension (also known as primary suspension) is connected to the frame, and the frame is connected to the car body through secondary suspension (secondary suspension, also known as secondary suspension). Suspension devices generally include elastic supporting components (such as springs) and damping components (such a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61F5/04B61F5/30
CPCB61F5/04B61F5/30B61F5/24B61F5/20B61F5/52
Inventor 张晓军王俊锋卢娜张丽君胡文浩
Owner CRRC TANGSHAN CO LTD
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