CN113501023B - Be applied to butt-buckling formula pin junction combined material leaf spring assembly of train bogie - Google Patents
Be applied to butt-buckling formula pin junction combined material leaf spring assembly of train bogie Download PDFInfo
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- CN113501023B CN113501023B CN202110952900.6A CN202110952900A CN113501023B CN 113501023 B CN113501023 B CN 113501023B CN 202110952900 A CN202110952900 A CN 202110952900A CN 113501023 B CN113501023 B CN 113501023B
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- Prior art keywords
- plate spring
- spring body
- plate
- positioning piece
- rubber
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- 239000000463 material Substances 0.000 title claims description 10
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 239000011208 reinforced composite material Substances 0.000 claims 1
- 239000002131 composite material Substances 0.000 abstract description 11
- 239000002184 metal Substances 0.000 abstract description 10
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003733 fiber-reinforced composite Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- 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
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/04—Bolster supports or mountings
- B61F5/06—Bolster supports or mountings incorporating metal springs
-
- 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
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/04—Bolster supports or mountings
- B61F5/08—Bolster supports or mountings incorporating rubber springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
- F16F15/085—Use of both rubber and metal springs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Springs (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a butt-buckling pin connection composite plate spring assembly applied to a train bogie. The width direction of the plate spring is the same as the axial direction of the axle in the axle box, and the thickness direction of the plate spring is perpendicular to the axial direction of the axle. The rubber spring is connected with the external axle box, and a lower backing plate is arranged between the lower plate spring body and the rubber spring. The upper plate spring body and the lower plate spring body are both provided with rectangular grooves, and the end connecting piece is fixed with the plate spring through an outer side protrusion. The end connecting piece is connected by the pin shaft, the pin shaft is sleeved with the opening rubber pad to reduce the abrasion of the pin shaft, and the opening rubber pad is sleeved with the metal lining to prevent the opening rubber pad from being torn. Meanwhile, the bolts at the external framework are assembled in a mode from bottom to top, so that the assembly operation simplicity is improved.
Description
Technical Field
The invention relates to the technical field of suspensions of railway vehicles, in particular to a buckling pin connection composite plate spring assembly applied to a train bogie.
Background
With the development of industrial civilization in the world, the shortage of energy, environmental pollution and greenhouse effect are increased continuously, and people begin to put new demands on the development of the last hundred years. At present, when a train with a traditional structure made of metal materials is used in complex and changeable service environments such as high temperature, high cold and high altitude, the performance of the train is often unsatisfactory. Meanwhile, under the great trend of the development of the new generation of rail trains, the traditional structure train encounters a bottleneck in the aspects of improving the speed and the bearing capacity, and the difficulty in solving the problems of vibration, impact, resistance and noise is continuously increased, so that new materials are gradually applied to the manufacturing of the rail trains.
From the second half of the 20 th century, the requirements of the rail transportation industry on safety, comfort and green energy conservation of rail passenger cars are continuously increased, and when a substitute material of a traditional material is searched, as the fiber composite material has the advantages of high specific strength and rigidity, heat insulation, fatigue resistance, flame retardance, corrosion resistance, strong designability and the like, great britain, japan and germany try to apply the fiber composite material to structural members and non-structural members of rail trains, and certain progress is achieved. At present, a great deal of composite materials are applied to non-bearing structural members such as railway vehicle interior facilities, decoration materials and the like, but the composite materials are not deeply and widely applied to bearing members and large structural members, and have great potential market and development prospects in the field of rail transit.
The bogie is used as a main bearing component of the railway vehicle and provides sufficient safety and stability for bearing vehicle body load and load. As the train speed of a railway train increases, the impact force on the railway increases, and therefore, it is strongly desired to reduce the weight of the train, particularly the weight of a train bogie, and to reduce the energy consumption and the damage to the rails during the running of the train. The traditional metal bogie is generally very thick and heavy, so that the proportion of the bogie in the total mass of a vehicle is very large, and the traditional metal bogie has a series of problems of high maintenance cost, poor curve running capability, high noise, insufficient energy conservation, environmental protection and the like. At present, the dead weight of a metal steel spring adopted on a high-speed rail is large, the rigidity curve of the metal steel spring is shown in figure 2, the load is in direct proportion to the displacement, and the requirement of further lightening the high-speed rail train cannot be met. In addition, considering the narrow space between the train bogie and the axle box, most of the current common composite material leaf springs need to have extra space to release the displacement generated by deformation, and are difficult to be directly applied to the train bogie.
In conclusion, the composite plate spring which can reduce the occupied space and meet the required strength to realize the light weight of the train bogie has important significance for the development of the rail transit industry.
Disclosure of Invention
The invention aims to provide a buckling pin connection composite plate spring assembly applied to a train bogie, which can obviously reduce the overall mass of a train bogie primary suspension and can effectively limit the relative displacement between an upper plate spring body and a lower plate spring body.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a be applied to part such as butt-buckled pin joint combined material leaf spring assembly of train bogie, this leaf spring assembly includes leaf spring body, lower leaf spring body, goes up fastener, upper padding plate, lower padding plate, baffle, vertical backstop, rubber spring, end connection spare.
The rubber spring is connected with an external axle box, and the lower backing plate is arranged between the lower plate spring body and the rubber spring. The upper fastener is sleeved on the outer side of the middle part of the upper plate spring and matched with the inverted V-shaped structure in the middle part of the upper plate spring. The baffle is located the upper fastener downside, is connected through bolt and upper fastener, upper padding plate, framework. The vertical stopping block is fixed between the baffle and the upper fastener. The end parts of the upper plate spring body and the lower plate spring body are respectively provided with a rectangular groove, and the end part connecting piece is fixed with the plate spring through an outer side bulge.
Preferably, the rubber spring platform is provided with a rectangular groove, and the edge of the rectangular groove is rounded to provide a deformation space for the lower backing plate.
Preferably, a rectangular protruding part is arranged below the lower backing plate, so that the lower backing plate can be conveniently fixed with the rubber spring.
Preferably, the lower pad plate has a width larger than that of the lower plate spring.
Preferably, the middle part of the inner side of the upper plate spring body is provided with an inverted V-shaped bulge for limiting the displacement of the plate spring.
Preferably, the lower plate spring body and the upper plate spring body are both provided with rectangular grooves on the inner sides.
Preferably, the upper leaf spring body and the lower leaf spring body have a constant thickness throughout the entire length thereof.
Preferably, the upper leaf spring body and the lower leaf spring body are formed by stacking layers, the stacking angles are 0 degrees and 90 degrees respectively, and the stacking ratio is 4: 1.
Preferably, the baffle is grooved to reduce overall weight.
Preferably, the upper pad plate and the lower pad plate are made of rubber materials, so that the rigid contact and aggravated damage of the upper plate spring body and the lower plate spring body with the pad plates are avoided.
Preferably, the bolts at the external framework are assembled in a mode of being upward from bottom to top, and the assembling operation simplicity is improved.
Preferably, the end connectors are connected by pins.
Preferably, the pin ends are of reduced diameter and have threads for attachment.
Preferably, the diameter of the outer ring of the nut matched with the pin shaft is larger than the diameter of the opening of the lower positioning piece at the end part.
Preferably, the pin shaft is sleeved with an open rubber pad to reduce the abrasion of the pin shaft.
Preferably, the metal lining is sleeved outside the opening rubber gasket to prevent the opening rubber gasket from being torn.
In order to meet the requirement of train operation on vibration parameters, the integral vertical rigidity value of the plate spring is set to be 1000N/mm, and the error is plus or minus 3 percent.
Has the advantages that:
1. the rubber spring platform is provided with a rectangular groove, the edge of the rectangular groove is rounded to provide a deformation space for the lower backing plate, and a rectangular protruding part is arranged below the lower backing plate and is convenient to fix with a rubber spring.
2. The width of the lower backing plate is larger than that of the lower plate spring, and the middle part of the inner side of the upper plate spring body is provided with an inverted V-shaped bulge for limiting the displacement of the plate spring. Rectangular grooves are formed in the inner sides of the lower leaf spring body and the inner side of the upper leaf spring body, the thickness of the whole sections of the upper leaf spring body and the lower leaf spring body is unchanged, the upper leaf spring body and the lower leaf spring body are formed by stacking layers, the layer angle is 0 degrees and the layer angle is 90 degrees, the layer ratio is 4:1, and a groove is formed in the baffle plate to reduce the overall weight.
3. The upper backing plate and the lower backing plate are made of rubber materials, so that the rigid contact and aggravated damage of the upper plate spring body and the lower plate spring body with the backing plates are avoided.
4. The bolts at the external framework are assembled in a mode from bottom to top, so that the assembly operation simplicity is improved.
5. The end part connecting piece is connected by the pin shaft, the diameter of the tail end of the pin shaft is reduced, the screw thread is used for fixing, the diameter of the outer ring of the nut matched with the pin shaft is larger than the diameter of the hole of the lower positioning piece at the end part, the pin shaft is externally sleeved with the opening rubber gasket to reduce the abrasion of the pin shaft, and the opening rubber gasket is externally sleeved with the metal lining to prevent the opening rubber gasket from being torn.
6. The invention adopts the plate spring with the integral vertical rigidity value set as 1000N/mm and the error of plus or minus 3 percent, thereby meeting the requirements of train operation on vibration parameters.
Drawings
Fig. 1 is a structure view of a conventional train bogie.
And (3) identification and explanation: 1-a bogie frame; 2-axle boxes; 3-primary suspension (leaf spring or steel spring); 4-a wheel axle; 5-wheel: 6-secondary suspension (air spring).
Fig. 2 is a graph showing stiffness curves of a metal spring steel used in the prior art.
Figure 3 is a schematic view of the leaf spring assembly of the present invention.
And (3) identification and explanation: 7-an outer framework; 8-upper cushion plate; 9-upper plate spring; 10-end connectors; 11-lower leaf spring; 12-lower backing plate; 13-rubber spring; 14-an outer axle housing; 15-upper fastener; 16-a baffle plate; 17-vertical stop.
Figure 4 is a schematic view of a leaf spring end connection for a train bogie of the present invention.
And (3) identification and explanation: 9-upper plate spring; 11-lower leaf spring; 18-end upper locating element; 19-a nut; 20-open rubber pad; 21-end lower locating element; 22-a metal bushing; 23-pin shaft.
FIG. 5 is a schematic view of structural connections at the framework.
And (3) identification and explanation: 7-an outer framework; 8-upper cushion plate; 9-upper plate spring; 15-upper fastener; 16-a baffle plate; 17-vertical stop.
Fig. 6 is a schematic view of structural connection at the rubber spring.
And (3) identification and explanation: 11-lower leaf spring; 12-lower backing plate; 13-rubber spring; 14-external axle box.
FIG. 7 is a schematic view showing the direction of the leaf spring layering of the train bogie of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
As shown in figure 1, the bogie of the currently used high-speed train is schematically shown, the overall layout adopts an external bogie structure, and a primary suspension system adopts a steel spring, so that the overall mass of the bogie is large, and the whole light weight of the train is not facilitated to be realized.
The invention provides a buckling pin connection composite plate spring assembly applied to a train bogie, which has the integral rigidity value of 1000N/mm and the error of plus or minus 3 percent, is made of unidirectional prepreg compounded by glass fiber and epoxy resin, and the composite plate spring body, an axle box and a bogie frame are respectively connected with a fastener through a lower cushion plate. The middle part of the upper plate spring body is provided with a bulge which is matched with a concave part in the middle of the upper fastener.
As shown in fig. 3, in the installation diagram of the plate spring for a train bogie, the rubber spring is connected to the outer axle box, and a lower pad is provided between the lower plate spring body and the rubber spring. The upper fastener is sleeved in the middle of the upper plate spring body, and the outer side of the upper plate spring body is connected with an external framework through an upper backing plate. The baffle is arranged at the lower side of the upper fastener and is fixed with the upper fastener, the upper cushion plate, the external framework and the like through bolts. The vertical stop is fixed between the baffle and the upper fastener. The upper plate spring body and the lower plate spring body are both provided with rectangular grooves, and the end connecting piece is fixed with the plate spring through an outer side bulge.
The structure shown in fig. 4 is a schematic view of an end connecting piece, and an upper plate spring body and a lower plate spring body are connected with an upper positioning piece and a lower positioning piece at the end parts through rectangular grooves at the end parts. The tail end of the pin shaft is provided with threads, and the pin shaft is matched with a nut to play a fixing role. An opening rubber pad is sleeved outside the pin shaft, and a metal bushing is sleeved at the matching position of the opening rubber pad and the end positioning piece.
The structure shown in fig. 5 is a schematic connection diagram of the structure at the position of the framework, an upper base plate is arranged between the framework and the upper plate spring at an interval, and the upper fastener is sleeved on the outer side of the middle part of the upper plate spring and matched with the inverted V-shaped structure at the middle part of the upper plate spring. The baffle is located the upper fastener downside, is connected through bolt and upper fastener, upper padding plate, framework. The vertical stop is fixed between the baffle and the upper fastener by the baffle.
The structure shown in fig. 6 is a schematic diagram of structural connection at the rubber spring, the rubber spring is located above the axle box, the lower backing plate is matched with the rectangular groove in the middle of the rubber spring platform through the rectangular protrusion at the lower side, and the middle of the lower backing plate is located on the lower backing plate.
Fig. 7 is a schematic view of the fiber reinforced composite plate spring body in the layering direction, and the thickness of the whole section of the plate spring body is kept unchanged.
It should be understood that the above description of specific embodiments is not intended to limit the invention, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (1)
1. The utility model provides a be applied to butt-buckled formula pin junction combined material leaf spring assembly of train bogie which characterized in that: the plate spring assembly comprises a plate spring body and a rubber spring, wherein the plate spring body is made of glass fiber reinforced composite materials and is of a single-sheet type layered structure, the whole thickness is unchanged, the vertical rigidity value of the whole body is constant, the width direction of the plate spring body is the same as the axial direction of a wheel shaft in the wheel shaft box, the thickness direction of the plate spring body is vertical to the axial direction of the wheel shaft, the rubber spring is connected with an external wheel shaft box, a lower backing plate is arranged between the lower plate spring body and the rubber spring, an upper fastener is sleeved on the outer side of the middle part of the upper plate spring body and matched with an inverted V-shaped structure in the middle part of the upper plate spring body, a baffle plate is positioned on the lower side of the upper fastener and is connected with the upper fastener, the upper backing plate and a framework through bolts, a vertical stop is fixed between the baffle plate and the upper fastener, rectangular grooves are formed at two end parts of the upper plate spring body and the lower plate spring body, and an end connecting piece is fixed with two ends of the plate spring body through an outer protrusion, the end part connecting piece comprises an end part upper positioning piece and an end part lower positioning piece;
the laminated structure is made of unidirectional prepreg compounded by glass fiber and epoxy resin;
the layered structure is formed by overlapping layers, the layering angles are respectively 0 degrees and 90 degrees, and the layering proportion is respectively 4: 1;
the total thickness of each layer along the length direction is not changed;
the middle part of the inner side of the upper plate spring body is provided with an inverted V-shaped structure, and the end parts of the inner sides of the plate springs are provided with rectangular grooves;
the middle part of the rubber spring is designed into a groove structure, and the lower backing plate is fixedly connected with the rubber spring through the groove;
the edge part of the groove structure is rounded, and a small amount of gaps are reserved between the edge part of the groove structure and the connecting part of the groove structure and the lower backing plate;
the upper end positioning piece and the lower end positioning piece are provided with bulges matched with the plate spring;
the end upper positioning piece and the end lower positioning piece are connected by a pin shaft;
the diameter of the tail end of the pin shaft is reduced and a thread is tapped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110952900.6A CN113501023B (en) | 2021-08-19 | 2021-08-19 | Be applied to butt-buckling formula pin junction combined material leaf spring assembly of train bogie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110952900.6A CN113501023B (en) | 2021-08-19 | 2021-08-19 | Be applied to butt-buckling formula pin junction combined material leaf spring assembly of train bogie |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113501023A CN113501023A (en) | 2021-10-15 |
| CN113501023B true CN113501023B (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110952900.6A Active CN113501023B (en) | 2021-08-19 | 2021-08-19 | Be applied to butt-buckling formula pin junction combined material leaf spring assembly of train bogie |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH70850A (en) * | 1915-01-19 | 1915-11-01 | F Arnold Jean | Automobile car |
| GB154416A (en) * | 1919-10-28 | 1920-12-02 | Nils Aall Krag | Improvements in retaining means for points for tramways and the like |
| JP3130577B2 (en) * | 1991-08-05 | 2001-01-31 | 財団法人鉄道総合技術研究所 | Gauge adjustment device for vehicles |
| CN103029717B (en) * | 2011-09-29 | 2015-05-20 | 齐齐哈尔轨道交通装备有限责任公司 | Rail freight truck bogie and rail freight truck |
| CN102673676B (en) * | 2012-04-13 | 2015-11-25 | 机科发展科技股份有限公司 | Many train heavy duty mobile robot AGV |
| CN205916232U (en) * | 2016-08-15 | 2017-02-01 | 山东中煤工矿物资集团有限公司 | Platform trailer |
| CN210133116U (en) * | 2019-06-26 | 2020-03-10 | 通号轨道车辆有限公司 | Suspension type rail transit vehicle and secondary suspension device thereof |
| CN112644541B (en) * | 2019-10-10 | 2022-07-26 | 中车唐山机车车辆有限公司 | Primary suspension device, bogie and rail vehicle |
| CN112046534A (en) * | 2020-09-25 | 2020-12-08 | 中车长春轨道客车股份有限公司 | Primary suspension system of railway vehicle adopting composite plate spring |
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| CN113501023A (en) | 2021-10-15 |
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