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Train wheel silencer

A sound-absorbing device and a technology for train wheels, which are applied in the direction of wheels, wheels characterized by rail running parts, vehicle parts, etc., can solve problems such as poor sound-absorbing effect, complex connection structure between resistance ring and wheel, inconvenient disassembly and installation, etc., to achieve Good noise reduction effect, convenient installation and disassembly, and convenient maintenance

Inactive Publication Date: 2013-10-16
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its vibration absorption effect is good, but because the resistance ring has no holes, the noise outside the wheel cannot be absorbed by the vibration-absorbing damping material, and the noise reduction effect is poor; and the connection structure between the resistance ring and the wheel is complicated, and it is inconvenient to disassemble and install

Method used

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  • Train wheel silencer
  • Train wheel silencer
  • Train wheel silencer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] figure 1 , figure 2 It is shown that a specific embodiment of the present invention is a train wheel silencing device, which consists of: a silencing damping ring 1 is installed on both sides of the wheel web 3, and the silencing damping ring 1 faces the inner side of the wheel web 3 The sound-absorbing foam 2 is pasted, and the sound-absorbing foam 2 is attached to the spoke plate of the wheel;

[0027] Figure 1-4 Shown, the concrete structure that the silencer damping ring 1 of this example is installed on the wheel spoke plate 3 is: the inner side of the silencer damping ring 1 is provided with more than 3 radial positioning pin cylinders 5; Locating pin 4, reset spring 7 fits on locating pin 4 again; The afterbody of locating pin barrel 5 is provided with two support wings, and locating cam 6 is installed on two supporting wings, and locating cam 6 rotates the wall of locating pin barrel 5 of advance direction. Extending to the tail to form a cam limit baffle 8...

Embodiment 2

[0030] Figure 5 It shows that the structure of this example is basically the same as that of Embodiment 1, the difference is only:

[0031] The specific structure of the silencer damping ring 1 installed on the wheel spoke plate 3 is as follows: the inner side of the silencer damping ring 1 is provided with more than three radial double positioning pin cylinders 5'; the double positioning pin cylinders 5' are fitted with two The opposite positioning pin 4, the positioning pin 4 is fitted with the return spring 7; the two opposite walls of the double positioning pin cylinder 5' are slotted, and the remaining cylinder walls form two support wings, and the two support wings are installed There is a double-flange cam 6', a grooved wall in the middle of the double positioning pin cylinder 5' extends to the middle to form a cam limit baffle, and a flange of the double-flange cam 6' inside the double positioning pin cylinder 5' rotates When reaching the cam limit baffle plate, two ...

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PUM

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Abstract

The invention discloses a train wheel silencer which is characterized in that two sides of a wheel spoke plate (3) are provided with silence damping rings (1), the inner sides of the silence damping rings (1), facing towards the spoke plate, are adhered with silence shock-absorbing foam (2) which is attached on the wheel spoke plate, and the silence damping rings (1) are provided with silence holes (10). The train wheel silencer can be used for better absorbing vibration of a wheel, and can also be used for better absorbing noise near the wheel with good silence effect, and is convenient for disassembly and assembly as well as replacement and maintenance.

Description

technical field [0001] The invention relates to the technical field of train noise reduction. Background technique [0002] It is estimated that more than 70% of train running noise is related to random wheel-rail contact impacts, mainly including impacts caused by irregular wheel-rail contact shapes, wheel-rail contact slippage, and track geometry irregularities (turnouts, rail joints, etc.) ) and transient motion changes caused by line irregularities, transient motion changes caused by braking, and wheel-rail frictional slippage, etc., involve impact force, impact time, vibration intensity, sound transmission environment and other factors. The detection results of the environmental noise level and distribution of the CRH2 EMU with a speed of 300km / h show that the noise reaches 7dB(A) intensity when the distance is 130m away, and the noise from the wheel-rail contact near the ground to the pantograph-catenary part on the upper part of the vehicle is from large to large. to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60B17/00B60B19/00
Inventor 赵永翔蔡慧堵彬斌胡基士
Owner SOUTHWEST JIAOTONG UNIV