CN207059627U - A kind of railcar damping ring wheel - Google Patents
A kind of railcar damping ring wheel Download PDFInfo
- Publication number
- CN207059627U CN207059627U CN201720677068.2U CN201720677068U CN207059627U CN 207059627 U CN207059627 U CN 207059627U CN 201720677068 U CN201720677068 U CN 201720677068U CN 207059627 U CN207059627 U CN 207059627U
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- damping ring
- wheel
- bottom land
- section
- outer channel
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Abstract
The utility model discloses a kind of railcar damping ring wheel, including wheel rim (1) and disc (4), it is characterised in that：Described wheel rim (1) is provided with a circle outer channel (3) close to the side of orbit centre, and the notch of outer channel (3) tilts to bottom land to the direction away from core wheel；And the section of its bottom land is semicircle；Closely being fitted together in the bottom land of outer channel (3) has external damping ring (5)；The section of described external damping ring (5) is followed successively by inner metallic layer (5a), intermediate rubber layer (5b) and metal outer (5c) from the inside to the outside.This kind of damping ring wheel noise reduction vibration isolating effect is good, and its is simple in construction, has higher radial and axial rigidity, safe.
Description
Technical field
It the utility model is related to a kind of railcar damping ring wheel.
Background technology
With the quickening of the urbanization process of China, traffic pressure increases year by year.Subway saves soil, freight volume by it
Greatly, the advantages that speed is fast, air pollution is few has become the mode of transportation that each city in China becomes more and more important.But produced during subway circulation
Raw vibration noise, the comfortableness of passenger inside the vehicle's seating can be both influenceed, can also influence the work and rest of subjective reflection, therefore such as
The vibration of what reduction train and noise are the problem of one in the manufacture of current orbit vehicular traffic and system Construction are particularly significant.
Railroad train noise source is broadly divided into：Tractive squeal, wheel-rail noise, aerodynamic noise etc..With train running speed
Difference, the ratio of integrated noise is also different shared by each noise.Subway general speed of service section in China's is 60km/h, highest
The speed of service is 120km/h, and therefore, wheel-rail noise is Main Noise Sources during subway circulation.Wheel-rail noise can by its mechanism of production
It is divided into：Rolling noise, impact noise and utter long and high-pitched sounds.One of the main sound source of wheel noise as wheel-rail noise, controlled at sound source
Wheel noise is the effective ways for reducing wheel-rail noise.
Existing railcar rolles over steel standard wheel to be overall, without damped part and structure.Wheel/rail active force meeting
The radial mode shape vibrations and the vibration of radial-axial coupled mode of wheel 2000Hz around and above are excited, and then causes wheel tread
Region, wheel rim and disc produce more than 2000Hz vibration acoustic radiation.
The content of the invention
The purpose of this utility model is to provide a kind of railcar damping ring wheel, this kind of damping ring wheel noise reduction vibration isolation
Effect is good, and its is simple in construction, has higher radial and axial rigidity, safe.
The utility model solves its technical problem the technical scheme adopted is that a kind of railcar damping ring wheel,
Including wheel rim and disc, it is characterised in that：Described wheel rim is provided with a circle outer channel close to the side of orbit centre, outer channel
Notch tilts to bottom land to the direction away from core wheel；And the section of its bottom land is semicircle；Closely it is fitted together in the bottom land of outer channel
There is external damping ring；The section of described external damping ring is followed successively by inner metallic layer, intermediate rubber layer and metal outer from the inside to the outside.
Compared with prior art, the beneficial effects of the utility model are：
First, when wheel movement, small relative displacement can occur between each layer and damping ring and wheel of damping ring, by
In the presence of frictional force vibrational energy is dissipated, so as to effectively reduce the vibration acoustic radiation of wheel.In addition, middle rubber
Glue-line has absorbing effect, can suppress the vibration of wheel, reduces noise radiation；
Theory analysis shows that damping ring wheel of the present utility model only installs extrernal resistance relative to standard wheel in outer channel
During Buddhist nun's ring, its acoustic power level is respectively 85.5dB (A), 88.1dB (A) under radial and axial excitation, and noise reduction is respectively
10.5dB (A) and 11.3dB (A)；
2nd, the notch of outer channel tilts to bottom land to the direction away from core wheel, and damping ring is closely entrenched in the groove of outer channel
Bottom.In train travelling process, damping ring is subject to centrifugal forces, only can be adjacent to the bottom land farther from core wheel；Therefore, can be
In the case of not increasing any fastening structure or component simultaneously, you can effectively avoid and prevent coming off for damping ring, in turn ensure that
The rigidity of wheel.
3rd, damping ring wheel of the present utility model is only that a ring recess mouth is set on existing wheel is acclivitous to bottom land
Outer channel, damping ring is fitted together in bottom land.Its inherent structure destruction simple in construction, to wheel is small, has higher radial direction and axle
It is safe to rigidity.
Further, wheel rim of the present utility model is provided with four circle internal channels close to the inner edge of disc；The notch of internal channel
To bottom land straight up, the section of its bottom land is semicircle；Closely being fitted together in the bottom land of internal channel has internal damping ring；Described is interior
The section of damping ring is followed successively by inner metallic layer, intermediate rubber layer and metal outer from the inside to the outside.
So, can also occur between each layer and damping ring and wheel of the damping ring of four circle internal channels on wheel rim inner edge micro-
Small relative displacement, by Friction dissipation vibrational energy, so as to further reduce the vibration acoustic radiation of wheel.Four circle internal channel resistances
The intermediate rubber layer of Buddhist nun's ring also has absorbing effect, further suppresses the vibration of wheel, reduces noise radiation；
Test shows that its acoustic power level is respectively 81.6dB (A), 83.2dB (A) under radial and axial excitation, and noise reduction is imitated
Fruit is further promoted to 14.4dB (A) and 16.2dB (A) respectively.
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is the half section schematic of the utility model embodiment.
Fig. 2 is Fig. 1 left view.
Fig. 3 is the enlarged drawing of Local C in Fig. 1.
Fig. 4 is the enlarged drawing of local D in Fig. 1.
Embodiment
Embodiment 1
Fig. 1-4 shows,
A kind of embodiment of the present utility model is a kind of railcar damping ring wheel, including wheel rim 1 and spoke
Plate 4, it is characterised in that：Described wheel rim 1 is provided with a circle outer channel 3, the notch of outer channel 3 to groove close to the side of orbit centre
Bottom tilts to the direction away from core wheel；And the section of its bottom land is semicircle；Closely being fitted together in the bottom land of outer channel 3 has external damping
Ring 5；The section of described external damping ring 5 is followed successively by inner metallic layer 5a, intermediate rubber layer 5b and metal outer 5c from the inside to the outside.
The wheel rim 1 of this example is provided with the vertical internal channel 2 of four circles close to the inner edge of disc 4；The groove of described internal channel 2
The section at bottom is semicircle；Closely being fitted together in the bottom land of internal channel 2 has internal damping ring 6；The section of described internal damping ring 5 is from interior
To being followed successively by inner metallic layer 6a, intermediate rubber layer 6b and metal outer 6c outside.
Claims (2)
1. a kind of railcar damping ring wheel, including wheel rim (1) and disc (4), it is characterised in that：Described wheel rim (1)
A circle outer channel (3) is provided with close to the side of orbit centre, the notch of outer channel (3) inclines to bottom land to the direction away from core wheel
Tiltedly；And the section of its bottom land is semicircle；Closely being fitted together in the bottom land of outer channel (3) has external damping ring (5)；Described external damping
The section of ring (5) is followed successively by inner metallic layer (5a), intermediate rubber layer (5b) and metal outer (5c) from the inside to the outside.
A kind of 2. railcar damping ring wheel according to claim 1, it is characterised in that：Described wheel rim (1) leans on
The inner edge of nearly disc (4) is provided with the vertical internal channel (2) of four circles；The section of the bottom land of described internal channel (2) is semicircle；
Closely being fitted together in the bottom land of internal channel (2) has internal damping ring (6)；The section of described internal damping ring (5) is followed successively by from the inside to the outside
Inner metallic layer (6a), intermediate rubber layer (6b) and metal outer (6c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720677068.2U CN207059627U (en) | 2017-06-12 | 2017-06-12 | A kind of railcar damping ring wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720677068.2U CN207059627U (en) | 2017-06-12 | 2017-06-12 | A kind of railcar damping ring wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207059627U true CN207059627U (en) | 2018-03-02 |
Family
ID=61508287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720677068.2U Active CN207059627U (en) | 2017-06-12 | 2017-06-12 | A kind of railcar damping ring wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207059627U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108544893A (en) * | 2018-03-07 | 2018-09-18 | 马钢(集团)控股有限公司 | Low-noise vehicle wheel |
-
2017
- 2017-06-12 CN CN201720677068.2U patent/CN207059627U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108544893A (en) * | 2018-03-07 | 2018-09-18 | 马钢(集团)控股有限公司 | Low-noise vehicle wheel |
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