CN111055869B - Lightweight axle box built-in primary suspension device and lightweight method - Google Patents
Lightweight axle box built-in primary suspension device and lightweight method Download PDFInfo
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- CN111055869B CN111055869B CN202010036776.4A CN202010036776A CN111055869B CN 111055869 B CN111055869 B CN 111055869B CN 202010036776 A CN202010036776 A CN 202010036776A CN 111055869 B CN111055869 B CN 111055869B
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- primary suspension
- suspension device
- bogie
- top plate
- axle box
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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
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
- B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
- B61F5/305—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating rubber springs
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- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Vibration Prevention Devices (AREA)
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Abstract
A lightweight axle box built-in primary suspension device and a lightweight method are provided, wherein an axle box seat is arranged on an axle box of a vehicle, a stop hole is formed at the lower end of a bogie, the lower end of the primary suspension device is arranged in the axle box seat, and the upper end of the primary suspension device is arranged in the stop hole of the bogie. The invention can obviously improve the capability of the vehicle passing through the curve with small curvature radius, greatly saves primary suspension space and reduces the weight of the bogie. The minimum curve passing radius of the bogie of the vehicle is obviously reduced compared with that of a common bogie, so that the turning maneuverability and flexibility of the bogie are greatly improved, and the load capacity, the dynamic performance and the critical speed of the whole vehicle are improved.
Description
Technical Field
The invention relates to the field of railway vehicles, in particular to a lightweight method and a structure of a primary suspension device.
Background
The existing primary suspension devices are arranged on two sides of an axle box, the rotation angle of a bogie can be limited by the primary suspension devices on two sides of the axle box when a vehicle turns with small curvature, and the existing primary suspension devices are large in size and mass. Therefore, the existing series of suspension devices have defects in the aspects of capability of turning through a small curvature radius and light weight, are difficult to adapt to the geographic environment of some European countries with mountains and multiple bends, and are two of the required technical problems in the aspect of rail vehicle cooperation between China and European countries.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to let the vehicle improve through the turning performance of small radius of curvature, can also alleviate the weight of a series of linkage to satisfy modern rail vehicle lightweight, the demand that reduces discharging.
In order to solve the problems, the technical scheme provided by the invention is as follows: a lightweight axle box built-in primary suspension device is characterized in that an axle box seat is arranged on an axle box of a vehicle, a stop hole is formed in the lower end of a bogie, the lower end of the primary suspension device is installed in the axle box seat, and the upper end of the primary suspension device is installed in the stop hole of the bogie.
Preferably, the primary suspension device comprises a base, a top plate, conical springs and a limiting stop, a cavity is formed in each conical spring, the two conical springs are arranged between the base and the top plate side by side along the longitudinal direction, the limiting stop is arranged in each cavity of each conical spring, and the lower ends of the limiting stops are connected with the base.
Preferably, the base comprises a bottom plate, a shell and a bridging part, the shell and the bridging part are integrally formed on the bottom plate, the middle of the shell and the middle of the bridging part are hollowed, two sides of the bridging part along the longitudinal direction are respectively provided with one shell, and the bridging part is also inwards sunken in the transverse direction, so that the cross section formed by the shell and the bridging part in a seamless connection mode is 8-shaped.
Preferably, the two sides of the bottom plate are respectively provided with a bottom mounting hole, the vertical section of each bottom mounting hole is a section shaped like a Chinese character 'tu', and the lower end of the limiting stop catch is clamped in the bottom mounting hole of the bottom plate.
Preferably, the bottom plate is further provided with lightening holes penetrating through the bottom plate, the lightening holes comprise side lightening holes and middle lightening holes, the outer side of each bottom mounting hole is provided with the side lightening hole, and the middle lightening hole is further arranged between the two bottom mounting holes.
Preferably, conical spring includes the rubber body, dabber and overcoat, and the rubber body is embedded to have annular baffle, and the inboard outside with the dabber of rubber body upper end is connected, and the inboard of rubber body lower extreme outside and overcoat is connected.
Preferably, the top plate is provided with a shaft mounting hole, and the upper end of the mandrel penetrates through the shaft mounting hole of the top plate and extends into the stop hole of the bogie; the middle of the top plate is provided with a top lightening hole penetrating through the top plate, and the edge of the middle part of the top plate is also provided with a top groove sunken towards the inside.
A method for reducing the weight of a primary suspension device, wherein a pedestal is provided on an axle box of a vehicle, a stopper hole is formed in the lower end of a bogie, the lower end of the primary suspension device is mounted in the pedestal, and the upper end of the primary suspension device is mounted in the stopper hole of the bogie, so that the primary suspension device is disposed between the bogie and the axle box, thereby reducing the weight of the primary suspension device.
Preferably, the primary suspension device comprises a base, a top plate, two conical springs and a limit stop, wherein the two conical springs are arranged between the base and the top plate side by side along the longitudinal direction, and the weight of the primary suspension device is further reduced by arranging a cavity in each conical spring.
Preferably, the base comprises a bottom plate, a shell and a bridging part, the shell and the bridging part are integrally formed on the bottom plate, the middle of the shell and the bridging part are hollowed, the bridging part is arranged to be of an inward concave structure, and a lightening hole penetrating through the bottom plate is formed in the bottom plate to further reduce the weight of the primary suspension device; the weight of the primary suspension device is further reduced by arranging a top lightening hole penetrating through the top plate in the middle of the top plate and arranging a top groove which is concave inwards at the edge of the middle part of the top plate.
The beneficial technical effects of the invention are as follows: the invention places the axle box at the inner side of the wheel pair to form an axle box built-in bogie, and moves a series of suspension devices from two sides of the axle box to the upper part of the axle box. The bogie can reduce the space size of the frame, and the minimum curve passing radius is obviously reduced compared with that of a common bogie, so that the turning maneuverability and flexibility of the bogie can be greatly improved. The invention can obviously improve the capability of the vehicle passing through a curve with small curvature radius, greatly saves primary suspension space, reduces the weight of the bogie, and is beneficial to improving the load capacity, the dynamic performance and the critical speed of the whole vehicle.
Drawings
FIG. 1 is a schematic view of an overall structure of a suspension system according to a first embodiment;
FIG. 2 is a schematic perspective view of a base according to an embodiment;
FIG. 3 is a schematic structural diagram of a base according to an embodiment;
FIG. 4 is a schematic structural diagram of a top plate according to an embodiment;
FIG. 5 is a schematic view of an installation structure of a suspension system according to one embodiment;
in the figure: the structure comprises 1 bogie, 11 stop holes, 2 top plates, 21 shaft mounting holes, 22 top grooves, 23 top lightening holes, 3 mandrels, 41 rubber bodies, 42 partition plates, 43 outer sleeves, 5 bases, 51 bottom plates, 52 shells, 53 bridging parts, 54 side lightening holes, 55 middle lightening holes, 56 bottom mounting holes, 61 stop seats, 62 stop rods, 7 cavities, 8 insulators and 9 shaft box seats.
Detailed Description
The invention is further described with reference to the following examples and figures:
example one
As shown in fig. 1, 2 and 5, a primary suspension device includes a base 5, a top plate 2, a conical spring including a rubber body 41, a core shaft 3 and an outer sleeve 43, and a limit stopper. The lower end of the bogie 1 is provided with a stop hole 11, a single conical spring is a rotating body, two conical springs are arranged between the base 5 and the top plate 2 side by side along the longitudinal direction, and the upper ends of the mandrels 3 of the conical springs are arranged in the stop hole 11 in a clearance fit mode. The middle parts of the mandrel 3, the rubber body 41 and the outer sleeve 43 are all provided with cavities 7 which are communicated with each other, the lower end of the limit stop is clamped in a bottom plate 51 at the lower end of the base 5 in an interference fit mode, and the upper end of the limit stop extends into the cavity 7 arranged at the middle part of the mandrel 3. The upper end and the lower end of the axle box seat 9 are provided with grooves, the axle box seat 9 is arranged on an axle box of a vehicle in an interference fit mode through the grooves at the lower end, and the base 5 of the conical spring is arranged in the grooves at the upper end of the axle box seat 9 in the interference fit mode.
The rubber body 41 is embedded with an annular partition plate 42, and both the rubber body 41 and the partition plate 42 are hollow and inverted cones, that is, the diameter of the upper end of the partition plate 42 is larger than that of the lower end of the partition plate 42. The inner side of the upper end of the rubber body 41 is connected with the outer side of the mandrel 3, and the outer side of the lower end of the rubber body 41 is connected with the inner side of the outer sleeve 43. The insulator 8 is in a hollow round tube shape, and the insulator 8 is arranged on the inner side of the mandrel 3 in an interference fit mode.
As shown in fig. 1, 2 and 3, the base 5 includes a bottom plate 51, a shell 52 and a bridge 53, the shell 52 and the bridge 53 are integrally formed on the outer side of the bottom plate 51, two sides of the bridge 53 are respectively provided with the shell 52, the shell 52 and the bridge 53 are connected together without a seam, and the cross section of the whole body formed by connecting the shell 52 and the bridge 53 is 8-shaped. Wherein the middle of the shell 52 and the bridge part 53 are both hollowed out, and the cross section of each shell 52 is C-shaped. The conical springs are rotational bodies, the lower ends of the two conical springs are installed in the housing 52 in an interference fit manner, and a bridge portion 53 is provided between the two housings 52 to prevent the two conical springs from interfering with each other when installed. In order to meet the requirement of light weight design of the vehicle, the bottom plate 51 and the bridging parts 53 are hollowed, the bottom plate 51 is provided with a middle lightening hole 55 penetrating through the bottom plate 51 at the position of the bridging parts 53, and the bottom plate 51 is further provided with side lightening holes 54 penetrating through the bottom plate 51 at the outer sides of the two stop seats 61. The bottom plate 51 is provided with a bottom mounting hole 56 with the shape and size matched with that of the stop seat 61, the vertical section of the bottom mounting hole 56 is a convex section, and the stop seat 61 of the limit stop is clamped in the bottom mounting hole 56 of the bottom plate 51.
As shown in fig. 1 and 4, shaft mounting holes 21 are formed through both sides of the top plate 2, and in order to meet the requirement of vehicle weight reduction design, the positions of the two shaft mounting holes 21 of the top plate 2 correspond to the positions of the two stopper holes 11 formed at the lower end of the bogie 1, and the upper ends of the mandrels 3 of the two conical springs are mounted in the stopper holes 11 in a clearance fit manner. So that the lower ends of both conical springs are engaged in the foundation 5 and the upper ends of both conical springs are engaged in the bogie 1.
As shown in fig. 1 to 5, when the vehicle makes a small-curvature turn, the primary suspension device is not installed on both sides of the axle box of the vehicle, but installed above the axle box of the vehicle. Therefore, the structure can well realize the turning with small curvature without the limitation of the rotation angle of the bogie 1 by the primary suspension devices at the two sides of the axle box when the vehicle turns with small curvature. However, since the space above the axle box is extremely limited, especially the space in the transverse direction is very tight, the primary suspension device has high difficulty in achieving various complex technical requirements, and the primary suspension device needs to be manufactured into a small-volume structure, so that the weight of the primary suspension device is reduced.
And the weight of a train of suspension is further reduced by arranging two conical springs of small volume side by side in the longitudinal direction between the base 5 and the top plate 2 and by providing a cavity 7 in each conical spring. The weight of a primary suspension is further reduced by hollowing out both the housing 52 and the bridge intermediate portions and providing the bridge portions 53 in an inwardly recessed configuration and providing the base plate 51 with lightening holes extending through the base plate 51. And the weight of a series of suspension devices is further reduced by opening a top lightening hole 23 penetrating the top plate 2 in the middle of the top plate 2 and arranging a top groove 22 which is concave inwards at the middle edge of the top plate 2.
It will be apparent that modifications and variations are possible without departing from the principles of the invention as set forth herein.
Claims (8)
1. A primary suspension device with a built-in lightweight axle box is characterized in that an axle box seat is arranged on an axle box of a vehicle, a stop hole is formed in the lower end of a bogie, the lower end of the primary suspension device is installed in the axle box seat, and the upper end of the primary suspension device is installed in the stop hole of the bogie; the primary suspension device comprises a base, a top plate, conical springs and a limiting stop, wherein cavities are formed in the conical springs, two conical springs are arranged between the base and the top plate side by side along the longitudinal direction, the limiting stop is arranged in each conical spring cavity, and the lower ends of the limiting stops are connected with the base.
2. The lightweight axle-box built-in primary suspension device according to claim 1, wherein the base comprises a bottom plate, a housing and a bridge portion, the housing and the bridge portion are integrally formed on the bottom plate, the housing and the bridge portion are hollowed out, the bridge portion is provided with a housing on each side in the longitudinal direction, and the bridge portion is recessed inward in the transverse direction, so that the housing and the bridge portion are seamlessly connected together to form a cross section having a shape of 8.
3. The lightweight axle-box built-in primary suspension device according to claim 2, wherein a bottom mounting hole is formed on each side of the bottom plate, the vertical cross section of the bottom mounting hole is a convex cross section, and the lower end of the limit stopper is engaged with the bottom mounting hole of the bottom plate.
4. The lightweight axle-box built-in primary suspension device according to claim 3, wherein the bottom plate is further provided with lightening holes penetrating through the bottom plate, the lightening holes comprise side lightening holes and middle lightening holes, the outer side of each bottom mounting hole is provided with side lightening holes, and the middle lightening hole is further provided between the two bottom mounting holes.
5. The lightweight axle-box built-in primary suspension device according to claim 1, wherein the conical spring comprises a rubber body, a core shaft and an outer sleeve, the rubber body is embedded with an annular partition plate, the inner side of the upper end of the rubber body is connected with the outer side of the core shaft, and the outer side of the lower end of the rubber body is connected with the inner side of the outer sleeve.
6. The lightweight axle-box built-in primary suspension device according to claim 1, wherein the top plate is provided with an axle mounting hole, and the upper end of the core axle passes through the axle mounting hole of the top plate and extends into the stop hole of the bogie; the middle of the top plate is provided with a top lightening hole penetrating through the top plate, and the edge of the middle part of the top plate is also provided with a top groove sunken towards the inside.
7. A method for reducing the weight of a primary suspension device is characterized in that a primary suspension device is arranged between a bogie and an axle box by arranging an axle box seat on the axle box of a vehicle, opening a stop hole at the lower end of the bogie, installing the lower end of the primary suspension device in the axle box seat and installing the upper end of the primary suspension device in the stop hole of the bogie, thereby reducing the weight of the primary suspension device; the primary suspension device comprises a base, a top plate, two conical springs and a limiting stop, wherein the two conical springs are arranged between the base and the top plate side by side along the longitudinal direction, and the weight of the primary suspension device is further reduced by arranging a cavity in each conical spring.
8. The method of claim 7, wherein the base includes a base plate, a shell and a bridge, the shell and the bridge being integrally formed on the base plate, the weight of the primary suspension being further reduced by hollowing out the middle of the shell and the bridge and providing the bridge in an inwardly recessed configuration and providing the base plate with lightening holes extending through the base plate; the weight of the primary suspension device is further reduced by arranging a top lightening hole penetrating through the top plate in the middle of the top plate and arranging a top groove which is concave inwards at the edge of the middle part of the top plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010036776.4A CN111055869B (en) | 2020-01-14 | 2020-01-14 | Lightweight axle box built-in primary suspension device and lightweight method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010036776.4A CN111055869B (en) | 2020-01-14 | 2020-01-14 | Lightweight axle box built-in primary suspension device and lightweight method |
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| Publication Number | Publication Date |
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| CN111055869A CN111055869A (en) | 2020-04-24 |
| CN111055869B true CN111055869B (en) | 2021-03-12 |
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| CN202010036776.4A Active CN111055869B (en) | 2020-01-14 | 2020-01-14 | Lightweight axle box built-in primary suspension device and lightweight method |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209700671U (en) * | 2018-11-08 | 2019-11-29 | 中车长春轨道客车股份有限公司 | A kind of vibration damping circular cone rubber spring mechanism |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL1727720T3 (en) * | 2004-03-26 | 2008-06-30 | Skf Ab | Railway bogie |
| CN101068704A (en) * | 2004-10-25 | 2007-11-07 | 古米金属技术有限公司 | Primary spring arrangement, in particular for wagon bogies of rail vehicles |
| DE102005028565A1 (en) * | 2005-06-21 | 2007-01-04 | Contitech Luftfedersysteme Gmbh | Highly elastic layered spring |
| DE102006055697A1 (en) * | 2006-11-23 | 2008-05-29 | Carl Freudenberg Kg | Primary spring for use in bogies of rail-bound vehicle, has height adjustment device assigned to bearing and/or support, for height adjustment of spring, where adjustment device is hydraulically and/or pneumatically adjustable |
| JP2008275009A (en) * | 2007-04-26 | 2008-11-13 | Nippon Sharyo Seizo Kaisha Ltd | Shaft spring device |
| CN202935362U (en) * | 2012-11-14 | 2013-05-15 | 南车株洲电力机车有限公司 | Locomotive bogie and axle box body thereof |
| CN103213596B (en) * | 2013-04-03 | 2016-03-02 | 南车长江车辆有限公司 | Journal box of truck of rail wagon resilient suspension shock attenuation unit |
| CN204037582U (en) * | 2013-12-07 | 2014-12-24 | 南车青岛四方机车车辆股份有限公司 | Railway vehicle bogie primary journal box spring device |
| CN203753159U (en) * | 2014-04-02 | 2014-08-06 | 成都市新筑路桥机械股份有限公司 | Primary suspension device for 100% low floor tramcar |
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2020
- 2020-01-14 CN CN202010036776.4A patent/CN111055869B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209700671U (en) * | 2018-11-08 | 2019-11-29 | 中车长春轨道客车股份有限公司 | A kind of vibration damping circular cone rubber spring mechanism |
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| CN111055869A (en) | 2020-04-24 |
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Effective date of registration: 20200610 Address after: 412007 No.301, physical and chemical building, Liyu Industrial Park, no.639, Heilongjiang Road, Tianyuan District, Zhuzhou City, Hunan Province Applicant after: Zhuzhou Times Ruiwei damping equipment Co., Ltd Address before: 412007 No. 18 Haitian Road, Tianyuan District, Hunan, Zhuzhou Applicant before: Zhuzhou Times New Material Technology Co.,Ltd. |
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