CN211390834U - Wheel set of motor train unit - Google Patents
Wheel set of motor train unit Download PDFInfo
- Publication number
- CN211390834U CN211390834U CN201922427269.9U CN201922427269U CN211390834U CN 211390834 U CN211390834 U CN 211390834U CN 201922427269 U CN201922427269 U CN 201922427269U CN 211390834 U CN211390834 U CN 211390834U
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- CN
- China
- Prior art keywords
- wheel
- pair
- damping ring
- tread
- motor train
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000013016 damping Methods 0.000 claims abstract description 24
- 241000271559 Dromaiidae Species 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 6
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005457 optimization Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910001339 C alloy Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Abstract
The utility model discloses a EMUs wheel pair, include the shaft and locate a pair of wheel on the shaft both ends, every the wheel all includes rim, wheel tread and radials, wheel tread has adopted LM wearing and tearing type tread, the wheel is still including falling the damping ring of making an uproar, all installs two on every wheel fall the damping ring of making an uproar, two fall the damping ring of making an uproar and install respectively in the rim and be located the axial both sides of radials. The wheel pair has the advantages of simple structure, good wear resistance of the wheel tread and low noise in the operation process, and provides a more comfortable riding environment for passengers.
Description
Technical Field
The utility model relates to a rail vehicle spare part field, in particular to EMUs wheel pair.
Background
The wheel set is the part of the rolling stock contacting with the steel rail and consists of left and right wheels firmly pressed on the same axle. The wheel pair is used to ensure the running and steering of the rolling stock on the rail, bear all static and dynamic loads from the rolling stock, transfer the static and dynamic loads to the rail and transfer the loads generated by the irregularity of the lines to the parts of the rolling stock. In addition, the drive and braking of the rolling stock are also effected via wheel pairs. The motor train unit wheel pair is an important part in a motor train unit, is a main wearing part, is frequently required to be replaced, reduces the abrasion of the motor train unit wheel pair, reduces the noise of the motor train unit in the operation process, provides a comfortable environment for passengers, and reduces the operation cost, and is a problem which is solved by technical personnel in the field.
Disclosure of Invention
The utility model aims at overcoming the not enough of prior art, providing a EMUs wheel pair, its simple structure, the operation in-process, the noise is low, wheel face wearing and tearing are little, the whole light in weight of wheel.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a EMUs wheel pair, includes the shaft and locates a pair of wheel on the shaft both ends, every the wheel all includes rim, wheel tread and radials, the wheel tread has adopted LM wearing and tearing type tread, the wheel is still including falling the damping ring of making an uproar, all installs two on every wheel fall the damping ring of making an uproar, two fall the damping ring of making an uproar and install respectively in the rim and be located the axial both sides of radials.
Preferably, the web adopts a straight web structure.
Preferably, the rim is provided with grooves for mounting noise reduction damping rings, the grooves and the noise reduction damping rings are in one-to-one correspondence in number and position, and the cross sections of the groove bottoms of the grooves are semicircular.
Preferably, the two noise reduction damping rings are symmetrically arranged on two axial sides of the spoke plate by taking the vertical center line of the spoke plate as a symmetry axis.
Preferably, a pair of brake discs are mounted on the wheel and located on two axial sides of the spoke plate, and the brake discs are made of cast steel materials.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the utility model discloses a EMUs wheel pair, its wheel tread has adopted LM wearing and tearing type tread, make the wear resistance of this wheel better, and on the rim, the both sides of radials set up respectively and fall the damping ring of making an uproar, noise in can the greatly reduced wheel pair operation process, give a more comfortable environment of taking of passenger, adopt straight radials structure, compare with conventional single S type radials or two S type radials, the whole weight of wheel has been reduced, thereby the whole unsprung weight of bogie has been alleviateed, make the traction power who consumes among the operation process descend to some extent, the brake disc of being made by cast steel material is installed in radials both sides, its brake friction area increases, it is more stable to brake, the whole weight of brake disc has been reduced, the whole space that makes the bogie has obtained the optimization.
Drawings
FIG. 1 is a schematic structural view of a wheel set of a motor train unit according to the present invention;
wherein: 1. a wheel axle; 2. a wheel; 21. a rim; 22. a rim; 23. a wheel tread; 24. a web; 211. a trench; 25. a brake disc; 3. and a noise reduction damping ring.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
A wheel set of a motor train unit is shown in figure 1 and comprises a wheel shaft 1 and a pair of wheels 2 arranged at two ends of the wheel shaft 1, wherein each wheel 2 comprises a rim 21, a wheel flange 22, a wheel tread 23 and a spoke plate 24, the wheel tread 23 adopts an LM abrasion type tread in TB/T449, the wheels 2 further comprise noise reduction damping rings 3, two noise reduction damping rings 3 are arranged on each wheel 2, and the two noise reduction damping rings 3 are respectively arranged in the rim 21 and located on two axial sides of the spoke plate 24.
The LM abrasion type tread is adopted, so that the contact abrasion between the wheel tread 23 and a steel rail can be effectively reduced, compared with the conventional vehicle type wheel 2, the hardness of the wheel tread 23 is improved, the hardness matching performance with a rail is better, and the service life of the wheel 2 can be effectively prolonged.
The wheel shaft 1 is made of an integrally forged solid wheel shaft 1 made of EA4T carbon alloy steel materials, and the wheel shaft 1 made of the materials is good in fatigue resistance.
In this example, the rim 21 is provided with grooves 211 for mounting the noise reduction damping rings 3, as shown in fig. 1, the grooves 211 correspond to the noise reduction damping rings 3 in number and position, and the cross section of the groove bottom of the groove 211 is semicircular. The two noise reduction damping rings 3 are symmetrically arranged on two axial sides of the spoke plate 24 by taking the vertical center line of the spoke plate 24 as a symmetry axis.
The noise reduction damping rings 3 are respectively arranged on the two sides of the radial plate 24, so that the running comfort of the whole train is effectively improved. The test proves that the single-wheel noise reduction effect can reach 14 dB. The noise interference of the train in the running process is effectively relieved.
In this example, the web 24 is a straight web configuration, as shown in fig. 1, which reduces the overall weight of the wheel 2 and the overall unsprung weight of the bogie, resulting in a reduction in the traction power consumed during operation, as compared to conventional S-type webs and double S-type webs.
In this example, a pair of brake disks 25 are mounted on the wheel 2 on both axial sides of the web 24, the brake disks 25 being made of a cast steel material as shown in the drawing. By adopting the brake disc 25, the brake friction area is large, the brake is stable, and almost no noise exists. And the assembly on the wheel 2 not only reduces the overall weight of the brake disc 25, but also provides benefits for the optimization of the overall spatial structure of the bogie.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (5)
1. The utility model provides a EMUs wheel pair, includes the shaft and locates a pair of wheel on the shaft both ends, every the wheel all includes rim, wheel tread and radials, its characterized in that, the wheel tread has adopted LM wearing and tearing type tread, the wheel is still including falling the damping ring of making an uproar, all installs two on every wheel fall the damping ring of making an uproar, two fall the damping ring of making an uproar and install respectively in the rim and be located the axial both sides of radials.
2. The pair of motor train units wheels according to claim 1, characterized in that the spoke plate adopts a straight spoke plate structure.
3. The motor train unit wheel pair according to claim 1 or 2, wherein a groove for mounting the noise reduction damping ring is formed in the rim, the groove and the noise reduction damping ring correspond to each other in number and position one to one, and the section of the groove bottom of the groove is semicircular.
4. The motor train unit wheel pair as claimed in claim 1, wherein two noise reduction damping rings are symmetrically arranged on two axial sides of the spoke plate by taking a vertical center line of the spoke plate as a symmetry axis.
5. The pair of wheels for motor train units according to claim 1, wherein a pair of brake discs are mounted on the wheels on both axial sides of the web, and the brake discs are made of a cast steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922427269.9U CN211390834U (en) | 2019-12-30 | 2019-12-30 | Wheel set of motor train unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922427269.9U CN211390834U (en) | 2019-12-30 | 2019-12-30 | Wheel set of motor train unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211390834U true CN211390834U (en) | 2020-09-01 |
Family
ID=72214647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922427269.9U Active CN211390834U (en) | 2019-12-30 | 2019-12-30 | Wheel set of motor train unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211390834U (en) |
-
2019
- 2019-12-30 CN CN201922427269.9U patent/CN211390834U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Jinmao Finance Leasing Co.,Ltd. Assignor: JIANGSU RAILTECO EQUIPMENT CO.,LTD. Contract record no.: X2023320010010 Denomination of utility model: Wheel set of multiple unit Granted publication date: 20200901 License type: Exclusive License Record date: 20230110 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Wheel set of multiple unit Effective date of registration: 20230111 Granted publication date: 20200901 Pledgee: Jiangsu Jinmao Finance Leasing Co.,Ltd. Pledgor: JIANGSU RAILTECO EQUIPMENT CO.,LTD. Registration number: Y2023320010035 |
|
| EC01 | Cancellation of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Jiangsu Jinmao Finance Leasing Co.,Ltd. Assignor: JIANGSU RAILTECO EQUIPMENT CO.,LTD. Contract record no.: X2023320010010 Date of cancellation: 20240203 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20200901 Pledgee: Jiangsu Jinmao Finance Leasing Co.,Ltd. Pledgor: JIANGSU RAILTECO EQUIPMENT CO.,LTD. Registration number: Y2023320010035 |