CN116443065A - Anti-torsion load-balancing type welding framework and bogie - Google Patents
Anti-torsion load-balancing type welding framework and bogie Download PDFInfo
- Publication number
- CN116443065A CN116443065A CN202310369880.9A CN202310369880A CN116443065A CN 116443065 A CN116443065 A CN 116443065A CN 202310369880 A CN202310369880 A CN 202310369880A CN 116443065 A CN116443065 A CN 116443065A
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- Prior art keywords
- cross beam
- load
- bogie
- torsion
- vehicle
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- 238000003466 welding Methods 0.000 title claims abstract description 31
- 230000013011 mating Effects 0.000 claims description 8
- 229910003460 diamond Inorganic materials 0.000 abstract description 10
- 239000010432 diamond Substances 0.000 abstract description 10
- 238000006073 displacement reaction Methods 0.000 description 7
- 238000005299 abrasion Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/50—Other details
- B61F5/52—Bogie frames
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
Abstract
The utility model provides an anti-torsion load-balancing type welding framework and a bogie, and relates to the technical field of vehicle bogies. The anti-torsion load-balancing type welding framework comprises a cross beam and two side beams, wherein the side beams are provided with mounting grooves for embedding the end parts of the cross beam; an elastic connecting assembly is arranged in the mounting groove, and the side beam is connected with the end part corresponding to the cross beam through the elastic connecting assembly. And a bogie comprising the anti-torsion load-balancing welding frame. Based on the technical scheme of the utility model, the uniform load performance of the welding framework and the bogie is improved, the relative rotation between the cross beam and the side beam is restrained, the diamond-resistant rigidity of the bogie is ensured, and meanwhile, the curve passing performance and the running stability of the vehicle during the high-speed running of the straight line are improved.
Description
Technical Field
The utility model relates to the technical field of vehicle bogies, in particular to an anti-torsion load-balancing type welding framework and a bogie.
Background
The bogie is a part of the vehicle running along the line under the action of traction force, and the bogie has the function of ensuring the flexible, safe and smooth running along the steel rail and passing through the curve; reliably receives various loads acting on the vehicle and transmits the loads to the rail; the mutual impact of the vehicle and the steel rail is alleviated, the vibration of the vehicle is reduced, enough running stability and good running quality are ensured, and the vehicle has a reliable braking mechanism and a good braking effect.
The utility model patent with the prior authority publication number of CN203793350U discloses a 2C shaft welding frame type bogie, which comprises a welding frame, an axle box spring suspension device and a foundation brake device; the welding frame is connected with the vehicle body through a center pin, and is mainly formed by welding a center plate beam and two side beams into an H-shaped integral structure, wherein the side beams and the center plate beam are all box-shaped structures consisting of an upper cover plate, a lower cover plate and a web plate, and are all box-shaped variable cross-section beams welded by steel plates.
The welding frame type bogie adopting the technical scheme has the technical advantages of energy conservation, environmental protection, high diamond resistance rigidity and high running speed, but the biaxial welding frame type bogie has the following defects:
(1) The welding framework is generally an integrated H-shaped structure, and the cross beam and the two side beams are welded into a whole, so that no relative motion exists between the cross beam and the two side beams, and the welding framework has no adaptability when a vehicle passes through a similar triangle pit railway line, so that the wheel track load shedding rate is high, and even exceeds the standard (GB/T5599-1985);
(2) The load balancing capability of the vehicle on the relief curve of transition from a straight line to a curve section and transition from the curve section to a straight line section is poor, and the curve passing performance is poor;
(3) The existing welding frame type bogie is generally used for special trucks, has special requirements on circuits and application, is relatively harsh in application conditions, and has obvious limitations.
Disclosure of Invention
The utility model provides an anti-torsion load-balancing type welding framework and a bogie, wherein the end part of a beam is embedded in a mounting groove on a side beam, and an elastic connecting assembly is used for connecting the beam and the side beam, so that the load balancing performance of the welding framework and the bogie is improved, the relative rotation between the beam and the side beam is inhibited, the diamond-resisting rigidity of the bogie is ensured, and meanwhile, the curve passing performance of a vehicle and the running stability of the vehicle in high-speed straight line running are improved.
The utility model provides an anti-torsion load-balancing type welding framework which comprises a cross beam and two side beams, wherein the side beams are provided with mounting grooves for embedding the end parts of the cross beam; an elastic connecting assembly is arranged in the mounting groove, and the side beam is connected with the end part corresponding to the cross beam through the elastic connecting assembly.
In one embodiment, the elastic connection assembly comprises an upper positioning disc for connecting the cross beam and a lower positioning disc for connecting the side beam, and an elastic piece is arranged between the upper positioning disc and the lower positioning disc. According to the embodiment, the elastic piece is respectively connected with the cross beam and the side beam through the upper positioning disc and the lower positioning disc, so that the installation reliability of the elastic piece is ensured.
In one embodiment, the elastic member is a torsion spring or a leaf spring. According to the embodiment, as the torsion spring or the plate spring has vertical deflection, the cross beam and the side beam can rotate in the nodding direction of the vehicle, and the torsion spring or the plate spring has larger rigidity for resisting the rotation of the cross beam and the side beam, and can provide larger resistance when the cross beam and the side beam relatively rotate, so that the diamond-resistant rigidity of the bogie is ensured.
In one embodiment, the bottom surface of the end part of the cross beam and the bottom surface of the mounting groove are provided with positioning holes; and positioning protrusions used for being in plug-in fit with the positioning holes are arranged on one side of the upper positioning plate, which is used for being connected with the cross beam, and one side of the lower positioning plate, which is used for being connected with the side beam. According to the embodiment, the upper positioning disc and the lower positioning disc are in plug-in fit with the positioning holes on the cross beam or the side beam through the positioning protrusions, so that radial gapless between the side beam and the cross beam after assembly can be ensured, and the loss of the diamond-resistant rigidity is avoided.
In one embodiment, contact cambered surfaces are arranged on two sides of the end part, used for connecting the side beams, of the cross beam along the running direction of the vehicle.
In one embodiment, the mounting groove is provided with mating cambered surfaces for abutting against the contact cambered surfaces on both sides in the running direction of the vehicle. According to the embodiment, the contact cambered surface is abutted with the matched cambered surface, and when the cross beam and the side beam are in relative displacement contact with each other, the cross beam and the side beam are in cambered surface contact, so that the resistance can be reduced, and the abrasion of the cross beam and the side beam is reduced.
In one embodiment, the bottom surface of the end part of the cross beam for connecting the side beam is provided with arc-shaped contact protrusions on both sides along the running direction of the vehicle.
In one embodiment, both sides of the bottom surface of the mounting groove along the running direction of the vehicle are provided with arc-shaped matching protrusions for abutting against the arc-shaped contact protrusions. According to the embodiment, when the cross beam and the side beam are in relative displacement contact, the cross beam can be abutted with the arc-shaped matching protrusions on the side beam through the arc-shaped contact protrusions, so that arc-shaped surface contact is realized, resistance is reduced, and abrasion is reduced.
In one embodiment, a reserved gap is arranged between two side walls of the end part of the cross beam along the running direction of the vehicle and the adjacent side walls of the mounting groove, and the width of the reserved gap is 2-20mm. According to the embodiment, by means of the reserved gap between the cross beam and the side beam, the cross beam and the side beam have enough rotation space in the nodding direction (namely, the vertical direction) so as to ensure the uniform load performance of the bogie; meanwhile, when the cross beam and the side beam rotate to a certain angle, the cross beam is contacted with the side beam, so that the cross beam and the side beam are prevented from continuously rotating, and the diamond-resistant rigidity of the bogie is ensured.
Another aspect of the utility model provides a bogie comprising the torsion-resistant load-balancing welded frame described above.
In summary, compared with the prior art, the utility model has the following beneficial technical effects:
(1) The end part of the beam is embedded in the mounting groove on the side beam, and the elastic connecting component is used for connecting the beam and the side beam, so that the uniform load performance of the welding framework and the bogie is improved, the relative rotation between the beam and the side beam is restrained, the diamond resistance rigidity of the bogie is ensured, and meanwhile, the curve passing performance of the vehicle and the running stability during linear high-speed running are improved;
(2) The contact cambered surface and the arc-shaped contact bulge are arranged on the cross beam, and the matched cambered surface and the arc-shaped matched bulge which are arranged on the side beam are matched, so that cambered surface contact can be realized when the cross beam and the side beam are in point head relative displacement contact, the resistance can be reduced, and the abrasion of the cross beam and the side beam is reduced;
(3) Through setting up the reservation clearance between crossbeam tip and mounting groove lateral wall, on the one hand make crossbeam and curb girder have sufficient rotation space in the direction of nodding to guarantee the even load performance of bogie, on the other hand can also restrict crossbeam and curb girder and continue the gyration, thereby guarantee the anti rhombus rigidity of bogie.
Drawings
The utility model will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings. Wherein:
FIG. 1 is a schematic view of the overall structure of a torsion-resistant load-balancing welded frame in accordance with one embodiment of the present utility model;
FIG. 2 is a bottom view of a torsion resistant uniform load welded frame in accordance with one embodiment of the present utility model;
FIG. 3 is a schematic cross-sectional view of a torsion-resistant load-balancing welded frame, embodying elastic connection assemblies, in accordance with one embodiment of the present utility model.
Reference numerals: 1. a cross beam; 101. a contact cambered surface; 102. arc-shaped contact protrusions; 2. a side beam; 21. a mounting groove; 211. matching with the cambered surface; 212. arc-shaped matching protrusions; 3. an elastic connection assembly; 31. an upper positioning disk; 32. a lower positioning disc; 33. an elastic member; 4. positioning the bulge; 5. a gap is reserved.
Detailed Description
The present utility model will now be described more fully hereinafter with reference to the accompanying drawings.
Referring to fig. 1-2, the utility model provides an anti-torsion load-balancing welding frame, which comprises a cross beam 1 and two side beams 2 connected with the cross beam 1. Wherein, in order to facilitate the assembly of the cross beam 1 and the side beam 2, the upper side of the side beam 2 is provided with a mounting groove 21; both ends of the beam 1 in the length direction are respectively embedded in the mounting grooves 21 of the beams 1 on both sides and are connected with the beam 1, so that the welded framework integrally forms an H-shaped structure.
In this embodiment, the mounting groove 21 may be disposed at a middle position corresponding to the upper side of the side beam 2, so as to ensure that the entire welding frame is uniformly stressed. Meanwhile, in order to ensure the stability of the connection of the cross member 1 and the side member 2, the bottom surface of the mounting groove 21 may be subjected to an enlarging surface treatment, i.e., a mounting plate for enlarging the contact area with the end portion of the cross member 1 may be laterally provided on the bottom surface of the mounting groove 21. Of course, when the contact area of the bottom surface of the mounting groove 21 is sufficient, the mounting plate may be omitted, which is not particularly limited.
Meanwhile, in order to further improve the stability of connection between the cross beam 1 and the side beam 2, the two ends of the cross beam 1 in the length direction can be similarly designed with expansion heads, namely, the cross beam 1 can be integrally arranged into an H-shaped structure as shown in fig. 2, so that the two ends of the cross beam 1 form expansion heads. In actual assembly, the enlarged heads at the two ends of the beam 1 are respectively embedded in the mounting grooves 21 at the two sides and are connected with the mounting plates at the bottoms of the corresponding mounting grooves 21. Of course, when the dimensions of the portions of the cross member 1 at both ends for connecting the side members 2 are sufficient, the design of the enlarged heads at both ends of the cross member 1 may be omitted, and the enlarged heads may be specifically determined according to the actual dimensions of the cross member 1, which is not particularly limited.
Referring to fig. 3, in the present embodiment, the cross member 1 and the side member 2 are disposed of in a structure integrally welded in the conventional welded frame, aiming at the problem of high wheel-rail load shedding rate of the conventional welded frame. In order to realize the connection between the cross beam 1 and the side beam 2, the side beam 2 is provided with an elastic connecting assembly 3; when assembled, the side members 2 may be connected to the adjacent ends of the cross member 1 by means of the elastic connection members 3 so that the welded frame is integrally formed into an H-shaped structure.
Taking one side beam 2 as an example, the elastic connection assembly 3 includes an upper positioning plate 31, a lower positioning plate 32, and an elastic member 33 disposed between the upper positioning plate 31 and the lower positioning plate 32. Wherein, the upper positioning disk 31 is abutted with the bottom surface of the end part of the beam 1 and is used for connecting the beam 1; the lower positioning plate 32 is abutted with the bottom surface of the mounting groove 21 and is used for connecting the side beam 2; the elastic member 33 is located between the upper positioning plate 31 and the lower positioning plate 32, and can realize elastic expansion and contraction, and has a certain vertical deflection, so that the cross beam 1 and the side beam 2 can rotate along the vehicle nodding direction (i.e. vertical axis).
Specifically, in order to achieve the assembly of the upper and lower positioning plates 31 and 32, the end of the cross member 1 (hereinafter, unless otherwise indicated, "end of the cross member 1" will refer directly to the end of the cross member 1 for connecting the side members 2) and the bottom surface of the mounting groove 21 are provided with positioning holes. Correspondingly, the top surface of the upper positioning plate 31 (i.e. the side abutting against the cross beam 1) and the bottom surface of the lower positioning plate 32 (i.e. the side abutting against the side beam 2) are both provided with positioning protrusions 4. The positioning projections 4 may be provided in 2, 3 or more, which is not particularly limited, and the positioning holes are provided in one-to-one correspondence with the positioning projections 4. In actual assembly, each positioning protrusion 4 on the upper positioning plate 31 is respectively embedded in each positioning hole on the bottom surface of the end part of the cross beam 1, and each positioning protrusion 4 on the lower positioning plate 32 is respectively embedded in each positioning hole on the bottom surface of the mounting groove 21, so that mounting and positioning of the upper positioning plate 31 and the lower positioning plate 32 are realized.
It should be noted that, in practical application, the positioning protrusion 4 may be a conical positioning pin; correspondingly, the shape of the positioning hole is matched with the positioning hole. Therefore, the positioning pin has a certain taper, and radial gapless can be ensured after the side beam 2 and the cross beam 1 are assembled, so that the loss of the diamond-resistant rigidity is avoided. Of course, the positioning boss 4 may take other configurations on the premise of ensuring the assembling stability of the side member 2, the cross member 1 and the elastic connection member 3, which is not particularly limited.
Meanwhile, any member having an elastic expansion function may be used for the elastic member 33, for example, in one embodiment, the elastic member 33 may be a torsion spring or a plate spring. The torsion spring or the plate spring not only has certain vertical deflection, but also can provide larger resistance when the cross beam 1 and the side beam 2 relatively revolve, thereby ensuring the diamond-resistant rigidity of the bogie.
Referring to fig. 1, the end of the cross beam 1 is provided with a contact cambered surface 101 on both sides in the running direction of the vehicle. When the cross beam 1 and the side beam 2 are in nodding relative displacement contact, the end part of the cross beam 1 is abutted with the side wall of the mounting groove 21 through the contact cambered surface 101, so that the resistance and abrasion are reduced.
In another embodiment, to further reduce the resistance and reduce the wear, the fitting grooves 21 on the side member 2 may be provided with mating cambered surfaces 211 on both sides in the running direction of the vehicle. In this way, when the cross member 1 comes into nodding relative displacement contact with the side member 2, the end of the cross member 1 comes into contact with the mating arcuate surface 211 on the mounting groove 21 through the above-described contact arcuate surface 101, thereby further reducing resistance and reducing wear.
In another embodiment, the bottom surface of the end of the cross beam 1 is provided with arc-shaped contact protrusions 102 on both sides in the running direction of the vehicle; correspondingly, both sides of the bottom surface of the mounting groove 21 in the running direction of the vehicle are provided with arc-shaped fitting projections 212. In this way, when the cross beam 1 and the side beam 2 are in nodding relative displacement contact, the end of the cross beam 1 can be abutted with the arc-shaped matching protrusion 212 on the bottom surface of the mounting groove 21 through the arc-shaped contact protrusion 102, so that arc-shaped contact is realized, the resistance is further reduced, and the abrasion is reduced.
It should be noted that the specific positions of the contact cambered surface 101, the mating cambered surface 211, the arc-shaped contact protrusion 102 and the arc-shaped mating protrusion 212 may be finely adjusted according to the actual situation. In general, the high-frequency contact position when the cross member 1 and the side member 2 are brought into nodding relative displacement contact can be determined through previous repeated experiments, so that the setting positions of the contact cambered surface 101, the mating cambered surface 211, the arc-shaped contact protrusion 102 and the arc-shaped mating protrusion 212 are further determined.
In this embodiment, in order to ensure the load balancing performance of the bogie, a reserved gap 5 may be provided between two side walls of the end portion of the beam 1 along the running direction of the vehicle and the adjacent side walls of the mounting groove 21. When the cross beam 1 and the side beam 2 rotate relatively, the reserved gap 5 ensures that enough rotation space exists between the cross beam 1 and the side beam 2 in the direction of the vehicle head so as to ensure the uniform load performance of the bogie. However, the width of the clearance 5 should be flexibly controlled, and when the two are rotated by a certain angle, the cross beam 1 should be contacted with the side beam 2, so that the two are limited to continue to rotate, and the diamond-resistant rigidity of the bogie is ensured. In this embodiment, the width of the reserved gap 5 may be flexibly and optimally designed according to the actual design requirement, so as to meet the requirements of the vehicle on the diamond resistance and the load balancing performance. In general, the width of the clearance 5 may be set to 2-20mm, and the specific value is determined according to the actual design requirement, without being limited specifically.
Meanwhile, the utility model also provides a bogie comprising the torsion-resistant uniform-load type welding framework. Other structural components of the bogie, which are known in the art, are not the focus of the description of the present embodiment, and will not be described in detail herein.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "bottom," "top," "front," "rear," "inner," "outer," "left," "right," and the like indicate orientation or positional relationships based on those shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (10)
1. An anti-torsion load-balancing type welding framework comprises a cross beam and two side beams, and is characterized in that the side beams are provided with mounting grooves for embedding the end parts of the cross beam; an elastic connecting assembly is arranged in the mounting groove, and the side beam is connected with the end part corresponding to the cross beam through the elastic connecting assembly.
2. The anti-torsion load-sharing welding frame according to claim 1, wherein the elastic connection assembly comprises an upper positioning disc for connecting with a cross beam and a lower positioning disc for connecting with the side beam, and an elastic piece is arranged between the upper positioning disc and the lower positioning disc.
3. The anti-twist, load-sharing welded frame of claim 2, wherein the resilient member is a torsion spring or a leaf spring.
4. The anti-twist uniform load welding frame according to claim 2, wherein the bottom surface of the beam end and the bottom surface of the mounting groove are provided with positioning holes; and positioning protrusions used for being in plug-in fit with the positioning holes are arranged on one side of the upper positioning plate, which is used for being connected with the cross beam, and one side of the lower positioning plate, which is used for being connected with the side beam.
5. The torsion-resistant load-sharing welding frame according to claim 1, wherein the end portions of the cross members for connecting the side members are provided with contact cambered surfaces on both sides in the running direction of the vehicle.
6. The anti-torsion load-sharing welding frame according to claim 5, wherein the mounting groove is provided with mating cambered surfaces for abutting against the contact cambered surfaces on both sides in the vehicle running direction.
7. The anti-torsion load-sharing welding frame according to claim 1, wherein the bottom surface of the end portion of the cross member for connecting the side member is provided with arc-shaped contact protrusions on both sides in the running direction of the vehicle.
8. The anti-twist uniform load type welding frame according to claim 7, wherein both sides of the bottom surface of the mounting groove in the running direction of the vehicle are provided with arc-shaped fitting projections for abutting against the arc-shaped contact projections.
9. The torsion-resistant load-sharing welding frame according to any one of claims 1 to 8, wherein a reserved gap is provided between both side walls of an end portion of the cross beam in a running direction of the vehicle and an adjacent side wall of the mounting groove, and a width of the reserved gap is 2 to 20mm.
10. Bogie characterized by comprising a twist resistant load balancing welded frame according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310369880.9A CN116443065A (en) | 2023-04-07 | 2023-04-07 | Anti-torsion load-balancing type welding framework and bogie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310369880.9A CN116443065A (en) | 2023-04-07 | 2023-04-07 | Anti-torsion load-balancing type welding framework and bogie |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116443065A true CN116443065A (en) | 2023-07-18 |
Family
ID=87126984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310369880.9A Pending CN116443065A (en) | 2023-04-07 | 2023-04-07 | Anti-torsion load-balancing type welding framework and bogie |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116443065A (en) |
-
2023
- 2023-04-07 CN CN202310369880.9A patent/CN116443065A/en active Pending
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