CN115891923A - Deflection mechanism, tread cleaning device and railway vehicle - Google Patents
Deflection mechanism, tread cleaning device and railway vehicle Download PDFInfo
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- CN115891923A CN115891923A CN202110912896.0A CN202110912896A CN115891923A CN 115891923 A CN115891923 A CN 115891923A CN 202110912896 A CN202110912896 A CN 202110912896A CN 115891923 A CN115891923 A CN 115891923A
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- 238000004140 cleaning Methods 0.000 title abstract description 13
- 235000014676 Phragmites communis Nutrition 0.000 claims description 7
- 238000010408 sweeping Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The application provides a deflection mechanism, a tread cleaning device and a railway vehicle. This beat mechanism includes: the tile holder is provided with a first mounting fork frame and a second mounting fork frame with mounting holes at one side; at least one bolt provided in the mounting holes of the first and second mounting forks; at least one bushing sleeved on at least one bolt between the first mounting fork and the second mounting fork; a piston rod sleeved on the at least one bushing and configured to be movably arranged between the first mounting fork and the second mounting fork along the at least one bolt and the at least one bushing; and at least one first elastic member disposed between the piston rod and the first mounting yoke and/or between the piston rod and the second mounting yoke; the piston rod is configured to move between at least a first position and a second position.
Description
Technical Field
The present application relates to the field of rail vehicle wheel rail operation and maintenance. More particularly, the present application relates to a yaw mechanism that aims to provide improved wheel track friction control block grip. The application also relates to a tread cleaning device comprising the deflection mechanism. And a rail vehicle including the yaw mechanism or the tread cleaning device.
Background
In recent years, with the increase in the operating speed of the railway main line, the maintenance and repair costs due to wear of the wheel rails have been increasing. As a result, wheel rail wear management is becoming increasingly important and a concern.
Some wheel-rail friction control technologies have been developed, such as sanding devices to increase the wheel-rail adhesion coefficient, tread sweeping devices, trackside top friction control devices, vehicle-mounted wheel rim lubrication devices to reduce the wheel rim friction coefficient, and rail side lubrication devices. For example, the means for rim lubrication and for tread sweeping and tackification functions may be separately provided. In order to ensure the stable friction coefficient of each part of the wheel rail, a typical solution is to install devices for rim lubrication and tread cleaning and tackifying functions at or near a train bogie respectively.
Disclosure of Invention
An object of one aspect of the present invention is to provide a yaw mechanism that is intended to clean and thicken a tread surface of a wheel and lubricate a rim. It is another object of the present invention to provide a tread surface cleaning device including the above-described yaw mechanism. It is another object of the present invention to provide a rail vehicle including the above-described yaw mechanism or the above-described tread surface cleaning device.
The purpose of the application is realized by the following technical scheme:
a yaw mechanism comprising:
the tile holder is provided with a first mounting fork frame and a second mounting fork frame which are provided with mounting holes at one side, and the mounting holes on the first mounting fork frame and the mounting holes on the second mounting fork frame correspond to each other in the axial direction;
at least one bolt provided in the mounting holes of the first and second mounting forks;
at least one bushing sleeved on at least one bolt between the first mounting fork and the second mounting fork;
a piston rod sleeved on the at least one bushing and configured to be movably arranged between the first mounting fork and the second mounting fork along the at least one bolt and the at least one bushing; and
at least one first elastic member disposed between the piston rod and the first mounting fork and/or between the piston rod and the second mounting fork;
wherein the piston rod is configured to move at least between a first position in which the piston rod is urged by the elastic force of the at least one first elastic member to be close to the first mounting fork and to be away from the second mounting fork, and a second position in which the piston rod is urged to be away from the first mounting fork and to be close to the second mounting fork against the elastic force of the at least one first elastic member.
In the above-described yawing mechanism, optionally, the yawing mechanism further includes:
at least one nut configured to engage with the at least one bolt and assist in fixing the at least one bolt between the first and second mounting forks.
In the above-described yawing mechanism, optionally, the first elastic member includes: a rubber body, a wave spring, a disc spring, a torsion spring, a reed, or combinations thereof.
In the above-described yawing mechanism, optionally, the yawing mechanism further includes:
a second resilient member attached between the piston rod and the at least one bushing, and the second resilient member comprising: a rubber body, a wave spring, a disc spring, a torsion spring, a reed, or combinations thereof.
In the above-described yaw mechanism, optionally, first washers may be respectively provided at both ends of the second elastic member, the first washers being positioned between the second elastic member and the respective first elastic members.
In the above-described yaw mechanism, optionally, the first washer is spaced apart from the at least one bushing by a first distance.
In the above-described yawing mechanism, optionally, the yawing mechanism further includes:
a wheel track friction control block attached to the other side of the shoe, or configured to be integrally formed with the shoe.
In the above-described yawing mechanism, optionally, the yawing mechanism further includes:
a plurality of second washers disposed at one or more of the following positions: at least one bolt is arranged between the first mounting fork frame, at least one bolt is arranged between the second mounting fork frame, a nut is arranged between the first mounting fork frame and the second mounting fork frame, and a nut is arranged between the second mounting fork frame and the first mounting fork frame.
A tread cleaning device comprises the deflection mechanism.
A rail vehicle comprises the deflection mechanism or the tread cleaning device.
Drawings
The present application will be described in further detail below with reference to the attached drawings and preferred embodiments. Those skilled in the art will appreciate that the drawings are designed solely for the purposes of illustrating preferred embodiments and that, accordingly, should not be taken as limiting the scope of the present application. Furthermore, unless specifically stated otherwise, the drawings are intended to be illustrative only of the compositions or constructions of the described objects, and may contain exaggerated displays. The figures are also not necessarily drawn to scale.
FIG. 1 is a cross-sectional view of one embodiment of a yaw mechanism of the present application.
Fig. 2 is a perspective view of the embodiment of fig. 1 when in place.
Fig. 3 is a schematic cross-sectional view of the embodiment shown in fig. 1 in a first position.
Fig. 4 is a schematic cross-sectional view of the embodiment of fig. 1 in a second position.
Detailed Description
Hereinafter, preferred embodiments of the present application will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the descriptions are illustrative only, exemplary, and should not be construed as limiting the scope of the application.
First, it should be noted that the terms top, bottom, upward, downward, and the like as used herein are defined with respect to the orientation in the drawings. These orientations are relative concepts and will therefore vary depending on the position and state in which they are located. These and other directional terms are not to be construed in a limiting sense.
Furthermore, it should also be noted that for any single technical feature described or implicit in the embodiments herein or shown or implicit in the drawings, these technical features (or their equivalents) can be continuously combined to obtain other embodiments not directly mentioned herein.
It should be noted that in different drawings, the same reference numerals indicate the same or substantially the same components.
The axial direction referred to herein refers to the direction indicated by the first axis A1-A1 and the second axis A2-A2 in FIG. 1. Similarly, the radial direction referred to herein refers to the direction in which rays extending from the first and second axes A1-A1 and A2-A2 in a plane perpendicular to the first and second axes A1-A1 and A2-A2 are directed.
FIG. 1 is a cross-sectional view of one embodiment of a yaw mechanism of the present application. A cross-sectional structure of the yaw mechanism 100 is shown in fig. 1. As shown, the yaw mechanism 100 includes a shoe 110. A first mounting fork 121 and a second mounting fork 122 are attached to the tile stock 110. The first and second mounting forks 121 and 122 may extend perpendicularly from a surface of one side of the tile 110, and the first and second mounting forks 121 and 122 may be positioned to be spaced apart in parallel from each other. The first and second mounting forks 121 and 122 are respectively provided with mounting holes, each of which corresponds to each other in the axial direction. For example, the mounting holes of the first and second mounting forks 121 and 122 are configured to extend along the first and second axes A1-A1 and A2-A2, respectively, and the respective mounting holes are mutually corresponding in size and orientation to each other in the axial direction. In the illustrated embodiment, the first axis A1-A1 and the second axis A2-A2 are disposed parallel to each other and substantially parallel to a surface of the tile holder 110.
At least one bolt is provided in the mounting holes of the first and second mounting forks 121 and 122. For example, the first bolt 131 may be installed in one set of installation holes of the first and second installation forks 121 and 122 along the first axis A1-A1, and the second bolt 132 may be installed in the other set of installation holes of the first and second installation forks 121 and 122 along the second axis A2-A2. The first bolt 131 may be oriented to extend along a first axis A1-A1 and the second bolt 132 may be oriented to extend along a second axis A2-A2. In the illustrated embodiment, each bolt is adapted to a nut. For example, the first bolt 131 is fitted with the first nut 211, and the second bolt 132 is fitted with the second nut 212. Each nut is configured to engage with a bolt and assist in fixing the bolt between the first mounting fork 121 and the second mounting fork 122.
At least one bushing may be sleeved on at least one bolt between the first and second mounting forks 121 and 122. For example, the first bushing 141 may be sleeved on the first bolt 131 and located between the first and second mounting forks 121 and 122. The second bushing 142 may be sleeved on the second bolt 132 and located between the first mounting fork 121 and the second mounting fork 122.
The piston rod 150 may be sleeved on at least one bushing, in other words, the piston rod 150 may be sleeved on all bushings, for example on the first and second bushings 141, 142. The piston rod 150 is configured to be movably disposed between the first mounting fork 121 and the second mounting fork 122 along at least one bolt and at least one bushing. For example, in the illustrated embodiment, the piston rod 150 is disposed about the first and second axes A1-A1 and A2-A2 and is movable in an axial direction along the first and second axes A1-A1 and A2-A2 relative to the first and second bushings 141 and 142, and thus relative to the first and second bolts 131 and 132, and thus relative to the first and second mounting forks 121 and 122.
At least one first elastic member may be disposed between the piston rod 150 and the first mounting fork 121 or between the piston rod 150 and the second mounting fork 122. For example, a plurality of first elastic members are shown in fig. 1, including a first spring 161 and a first spring plate 171 disposed around the first bushing 141, and a second spring 162 and a second spring plate 172 disposed around the second bushing 142. The first reed 171 is disposed between the piston rod 150 and the first mounting fork 121, and the first spring 161 is disposed between the piston rod 150 and the second mounting fork 122. Similarly, the second spring 172 is disposed between the piston rod 150 and the first mounting fork 121, and the second spring 162 is disposed between the piston rod 150 and the second mounting fork 122. It will be readily appreciated that the first resilient member is not limited to the illustrated combination of spring and leaf. According to practical needs, the first elastic member may include: a rubber body, a wave spring, a disc spring, a torsion spring, a reed, or combinations thereof.
The first elastic member may alleviate or absorb vibration and impact in the axial direction of the bolt generated during operation.
At least one second elastic member may be disposed between the piston rod 150 and the at least one bushing. For example, a plurality of second elastic members are shown in fig. 1, including a first elastic body 181 disposed around the first bushing 141 and a second elastic body 182 disposed around the second bushing 142. The first and second elastic bodies 181 and 182 thus space the piston rod 150 from the first and second bushings 141 and 142 in the radial direction. The second elastic member may be configured as a rubber member. However, according to practical needs, the second elastic member may include: a rubber body, a wave spring, a disc spring, a torsion spring, a reed, or combinations thereof.
The second elastic member may alleviate or absorb vibration and impact in a radial direction of the bolt generated during operation.
The second elastic member may be provided at both ends thereof with first washers, respectively, and the first washers may be further configured to be matched with the piston rod 150. As shown in fig. 1, first washers 191 and 201 are provided at both ends of the first elastic body 181 in the axial direction and are fitted with the piston rod 150. Thus, the first washer 191 spaces the first elastic body 181 from the first spring 171, and the first washer 201 spaces the first elastic body 181 from the first spring 161. Similarly, first washers 192 and 202 are provided at both ends of the second elastic body 182 in the axial direction and are fitted with the piston rod 150. Thus, the first washer 192 spaces the second resilient body 182 from the second spring 172, and the first washer 202 spaces the second resilient body 182 from the second spring 162.
Further, each first washer is not in full close contact with the corresponding bushing, nor is the first washer 192 in full close contact with the inner bore of the piston rod 150, but rather may be spaced apart by a first distance. For example, the first distance may be between 0.05mm and 0.3 mm. For another example, the first distance may be between 0.1mm and 0.2 mm.
Additionally, the yaw mechanism 100 may also include a plurality of second washers. The second gasket may be provided to be positioned adjacent to several of the components noted above. For example, a second washer 231 may be positioned between the first nut 211 and the first mounting fork 121, and a second washer 232 may be positioned between the second nut 212 and the first mounting fork 121. A second washer 221 may be positioned between the first bolt 131 and the second mounting fork 122, and a second washer 222 may be positioned between the second bolt 132 and the second mounting fork 122. Second washers 241 and 242 may also be sleeved over the first and second bolts 131 and 132, respectively, the second washers 241 and 242 may be positioned adjacent to the first and second bushings 141 and 142, respectively. The second washers 241 and 242 may be provided at one of the first yoke 121 or the second yoke 122, or on both the first yoke 121 and the second yoke 122.
An embodiment of the present application is described in fig. 1 in connection with a piston rod 150 that is sleeved over two bolts. It is to be understood that the solution of the present application is not limited to the case of being sleeved on two bolts, but may include more or fewer bolts. For example, the piston rod 150 may be sleeved on only two bolts, or may be sleeved on three or more bolts. Correspondingly, in these cases, other components may be added or subtracted accordingly, and still be able to combine embodiments that conform to the spirit of the application described above.
Fig. 2 is a perspective view of the embodiment of fig. 1 when in place. For the sake of clarity, a cross-section of a portion of the components in fig. 2 is shown, and thus at least a portion of the components is hidden. As shown, the first and second mounting forks 121 and 122 are attached at one side of the shoe 110, and various components described above, such as the first and second bolts 131 and 132, the second washers 221 and 222, the first and second springs 161 and 162, are attached. The other side of the shoe 110 has attached thereto a wheel track friction control block 200. In one embodiment, wheel track friction control block 200 is a separately manufactured component and removably attached to shoe 110. In another embodiment, the wheel track friction control block 200 and the shoe 110 are integrally formed.
Fig. 3 is a schematic cross-sectional view of the embodiment shown in fig. 1 in a first position, and fig. 4 is a schematic cross-sectional view of the embodiment shown in fig. 1 in a second position. As shown, the yaw mechanism 100 is positioned adjacent to the wheel 300 and the wheel rail friction control block 200 rests against the wheel 300. The shape of the wheel rail friction control block 200 is configured to match the shape of the wheel 300. The piston rod 150 is attached to the connecting rod 400.
In the first position shown in fig. 3, the piston rod 150 is urged to the equilibrium position in the axial direction by the elastic force of the first spring 161, for example, may be positioned close to the first mounting fork 121 and away from the second mounting fork 122. In one embodiment, when the piston rod 150 is in the first position, an equilibrium is reached between the elastic forces of the first spring 161 and the first spring 171.
Fig. 4 shows the piston rod 150 moved into the second position. As shown, the wheel 300 is offset in the direction indicated by arrow B, or the wheel 300 is offset in the axial or lateral direction (relative to the rail vehicle). The wheel 300 thus pushes the wheel-rail friction control block 200 and thus forces a corresponding displacement of the yaw mechanism 100. Specifically, the tile holder 110, the first mounting fork 121, the second mounting fork 122, and the like are moved in the direction indicated by the arrow B or the axial direction, respectively. The piston rod 150, being restrained by the connecting rod 400, will move in the axial direction of the bolt relative to the bolt and the bushing and into the second position and thus force the first spring 161 and the second spring, not shown. In one embodiment, the piston rod 150 is away from the first mounting fork 121 and close to the second mounting fork 122 against the elastic force of each spring. In one embodiment, piston rod 150 is out of contact with first spring 171 and second spring 172 in the second position. In another embodiment, piston rod 150 remains in contact with first spring 171 and second spring 172 in the second position. In yet another embodiment, first spring 171 and second spring 172 are attached to piston rod 150.
By employing the yaw mechanism 100 of the present application, the wheel rail friction control block 200 can still fit on the tread and rim of the wheel 300 when the wheel 300 is deflected relative to the tread sweeping device, thus providing improved fit. Therefore, the sweeping effect of the wheel rail tread and the lubricating effect of the wheel rim are further improved, and thus the friction performance of the wheel rail tread and the wheel rim is improved, so that the wheel has a longer life.
The present application also provides a tread cleaning device that includes the yaw mechanism 100 described above. The present application also provides a rail vehicle with the yaw mechanism 100 described above or the tread surface cleaning device described above.
The deflection mechanism, the tread cleaning device and the rail vehicle have the advantages of simplicity, reliability, easiness in implementation, convenience in use and the like. The friction performance of the tread and the wheel flange of the wheel is improved, and the service life is prolonged.
This written description discloses the application with reference to the drawings and also enables one of ordinary skill in the art to practice the application, including making and using any devices or systems, selecting appropriate materials, and using any incorporated methods. The scope of the present application is defined by the claims and encompasses other examples that occur to those skilled in the art. Such other examples are to be considered within the scope of protection defined by the claims of this application, provided that they include structural elements that do not differ from the literal language of the claims, or that they include equivalent structural elements with insubstantial differences from the literal language of the claims.
Claims (10)
1. A yaw mechanism, comprising:
a tile holder, wherein one side of the tile holder is provided with a first mounting fork and a second mounting fork which are provided with mounting holes, and the mounting holes on the first mounting fork and the mounting holes on the second mounting fork correspond to each other in the axial direction;
at least one bolt provided in the mounting holes of the first and second mounting forks;
at least one bushing sleeved on the at least one bolt between the first and second mounting forks;
a piston rod sleeved on the at least one bushing and configured to be movably arranged along the at least one bolt and the at least one bushing between the first mounting fork and the second mounting fork; and
at least one first elastic member disposed between the piston rod and the first mounting fork and/or between the piston rod and the second mounting fork;
wherein the piston rod is configured to move at least between a first position in which the piston rod is urged by the elastic force of the at least one first elastic member to be close to the first mounting fork and to be away from the second mounting fork, and a second position in which the piston rod is urged to be away from the first mounting fork and to be close to the second mounting fork against the elastic force of the at least one first elastic member.
2. The yaw mechanism of claim 1, further comprising:
at least one nut configured to engage with the at least one bolt and assist in securing the at least one bolt between the first mounting fork and the second mounting fork.
3. The yaw mechanism of claim 1, wherein the first resilient member comprises: a rubber body, a wave spring, a disc spring, a torsion spring, a reed, or combinations thereof.
4. The yaw mechanism of claim 1, further comprising:
a second resilient member attached between the piston rod and the at least one bushing, and the second resilient member comprising: a rubber body, a wave spring, a disc spring, a torsion spring, a reed, or combinations thereof.
5. The yaw mechanism according to claim 4, characterized in that first washers are provided at both ends of the second elastic member, respectively, the first washers being positioned between the second elastic member and each of the first elastic members.
6. The yaw mechanism of claim 5, wherein the first washer is spaced apart from the at least one bushing by a first distance.
7. The yaw mechanism of claim 1, further comprising:
a wheel track friction control block attached to the other side of the shoe or configured to be integrally formed with the shoe.
8. The yaw mechanism of any one of claims 2 to 7, further comprising:
a plurality of second washers disposed at one or more of the following positions: the at least one bolt is disposed between the first mounting fork, the at least one bolt is disposed between the second mounting fork, the nut is disposed between the first mounting fork, and the nut is disposed between the second mounting fork.
9. A tread sweeping device comprising a yaw mechanism according to any one of claims 1 to 8.
10. A rail vehicle comprising a yaw mechanism according to any one of claims 1 to 8 or comprising a tread sweeping device according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110912896.0A CN115891923A (en) | 2021-08-10 | 2021-08-10 | Deflection mechanism, tread cleaning device and railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110912896.0A CN115891923A (en) | 2021-08-10 | 2021-08-10 | Deflection mechanism, tread cleaning device and railway vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115891923A true CN115891923A (en) | 2023-04-04 |
Family
ID=86496016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110912896.0A Pending CN115891923A (en) | 2021-08-10 | 2021-08-10 | Deflection mechanism, tread cleaning device and railway vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115891923A (en) |
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2021
- 2021-08-10 CN CN202110912896.0A patent/CN115891923A/en active Pending
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Country or region after: China Address after: 213011 258 Wuyi Road, Changzhou, Jiangsu Applicant after: CRRC Qishuyan Locomotive and Rolling Stock Technology Research Institute Co.,Ltd. Applicant after: CRRC CHANGZHOU TECH-MARK INDUSTRIAL Co.,Ltd. Address before: 213011 258 Wuyi Road, Changzhou, Jiangsu Applicant before: CRRC QISHUYAN INSTITUTE Co.,Ltd. Country or region before: China Applicant before: CRRC CHANGZHOU TECH-MARK INDUSTRIAL Co.,Ltd. |
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