Railway vehicle bogie traction device

A rail vehicle and traction device technology, which is applied in the direction of the bogie, the device that moves laterally between the bogie and the bogie, the underframe, etc., can solve the problems that the stiffness characteristics cannot fully meet the design requirements, and the rubber joints are fatigued and damaged. To achieve variable traction stiffness performance and improve ride comfort

Active Publication Date: 2017-01-11
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, some nodes adopt a structure with gaps to achieve nonlinear stiffness, but the setting of gaps is affected by node size, reliability, and gap stability, and its stiffness characteristics cannot fully meet the design requirements; The rubber joints at both ends are prone to fatigue damage

Method used

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  • Railway vehicle bogie traction device
  • Railway vehicle bogie traction device
  • Railway vehicle bogie traction device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] refer to figure 1 As shown, the railway vehicle bogie traction device of the present invention includes: a central pin 20 and two traction capsules 30; each traction capsule 30 includes a traction rubber pile 32 and a capsule 31, and the body of the capsule 31 is made of rubber. It is provided with a filling port, the capsule 31 is filled with fluid, and the fluid in the capsule 31 is gas or liquid. In this embodiment, the fluid in the capsule 31 is compressed air, and the capsule 31 is set to a pressure. The traction rubber stack 32 is composed of multiple rubber sheets stacked in sequence to form a columnar structure. The traction rubber stack 32 is connected to the capsule 31 through a flange or glue joint. When the traction rubber pile 32 is connected to the capsule 31 , the axial direction of the traction rubber pile 31 is perpendicular to the capsule 31 , that is, the axis extension of the traction rubber pile 32 passes through the capsule 31 . In this embodimen...

Embodiment 2

[0033] This embodiment is basically the same as Embodiment 1, except that the rail vehicle bogie traction device in this embodiment also includes a center pin seat, which is rotatably socketed on the center pin; two traction capsules The components are respectively connected with the center pin seat, arranged in a "Z" shape. After installation, the two traction capsules 30 are located on the same level.

[0034] The railway vehicle bogie traction device is located between the frame 40 and the center pin 20 installed on the lower surface of the car body underframe bolster 10 (longitudinal installation), that is, the center pin 20 is fixed on the lower surface of the car body underframe bolster 10 through a bolt assembly. On the surface, the two traction capsules 30 are respectively connected to the front end and the rear end of the frame 40 . The longitudinal stiffness of the capsule 31 can be achieved by setting the inflation and deflation of the pressure control system 50 . ...

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PUM

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Abstract

A rail vehicle bogie traction device is provided, which includes a center pin and two traction rubber bag assemblies. Each of the traction rubber bag assemblies includes a traction rubber stack and a rubber bag, the rubber bag is filled with fluid, and a pressure of the rubber bag is settable. The traction rubber stack is connected to the rubber bag. The center pin is fixed on a lower surface of a vehicle body chassis bolster. Each of the two traction rubber bag assemblies has one end connected to the center pin, and another end connected to a cross beam of a rail vehicle frame. The rail vehicle bogie traction device has nonlinear characteristics, which may effectively transmit a longitudinal load, and may also prevent high-frequency vibration of the frame from transmitting to the vehicle chassis bolster and the vehicle body via the traction device.

Description

technical field [0001] The invention relates to the technical field of rail vehicle bogies, in particular to a rail vehicle bogie traction device. Background technique [0002] Rail vehicles generally use traction devices to transfer the longitudinal loads of the car body to the bogie. At present, the existing traction devices mainly include single-rod type and Z-shaped double-rod type. Both types of traction devices are respectively connected to the center pin of the car body and the frame through the traction rods with rubber nodes at both ends, as the car body and bogie. The connecting mechanism between them is likely to become the transmission path of harmful vibration. The study found that the stiffness of the traction rod is closely related to the vibration comfort of the vehicle body. For this reason, some nodes adopt the structure of setting gaps to achieve nonlinear stiffness, but the setting of gaps is affected by node size, reliability and gap stability, etc., a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61F5/50
CPCB61F5/50B61F5/16B61F5/245B61F5/24B61F1/14
Inventor 虞大联李海涛曲文强刘韶庆林俊邓小军龚明梁建英
Owner CRRC QINGDAO SIFANG CO LTD
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