CN111055870A - Force transmission method and structure of primary suspension device - Google Patents
Force transmission method and structure of primary suspension device Download PDFInfo
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- CN111055870A CN111055870A CN202010037523.9A CN202010037523A CN111055870A CN 111055870 A CN111055870 A CN 111055870A CN 202010037523 A CN202010037523 A CN 202010037523A CN 111055870 A CN111055870 A CN 111055870A
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- bogie
- primary suspension
- suspension device
- stop
- 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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- Engineering & Computer Science (AREA)
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Abstract
A method and structure for transmitting the force of primary suspension unit features that a axle box seat is arranged above axle box, the lower end of primary suspension unit is installed in said axle box seat, and the upper end of primary suspension unit is installed to bogie, so the bogie can sequentially bear the resistance of primary suspension unit, axle box seat and axle box when the bogie moves transversely, longitudinally or vertically relative to axle box. 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 force transmission method and structure of a primary suspension device.
Background
The existing primary suspension devices are arranged on two sides of an axle box, and the rotation angle of a bogie in the structure is restricted by the primary suspension devices on two sides of the axle box when a vehicle turns, so that flexible turning with small curvature radius is difficult to realize, and the flexible turning device is difficult to adapt to the geographic environment of some European countries with multiple mountains and multiple bends.
If the existing primary suspension device is directly arranged above the axle box, although the small-curvature turning can be well realized, the difficulty of realizing various complex technical requirements of the primary suspension device is high because the space above the axle box is extremely limited, especially the space in the transverse direction is very tight. As is well known, force has three major components: size, orientation and point of action. When the vehicle is turning, the bogie moves relative to the axle boxes, so that the structure, the installation position and the force transmission mode of the primary suspension device are changed, and the performance of the vehicle in the aspect of turning with a small curvature radius and the rigidity of the primary suspension device in the vertical direction, the transverse direction and the longitudinal direction is influenced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to change the structure, the installation position and the force transmission mode of a primary suspension device to enable the vehicle to flexibly realize the turning with small curvature radius so that the vehicle can adapt to the geographical environment with multiple mountains and multiple bends.
In order to solve the problems, the technical scheme provided by the invention is as follows: a force transmission structure of a primary suspension device is characterized in that a shaft box seat is arranged above a shaft box, the lower end of the primary suspension device is arranged in the shaft box seat, and the upper end of the primary suspension device is arranged on a bogie, so that when the bogie generates relative movement in the transverse, longitudinal or vertical directions relative to the shaft box, the bogie can be sequentially subjected to the resistance of the primary suspension device, the shaft box seat and the shaft box.
Preferably, the primary suspension device comprises a base, a top plate and conical springs, the lower ends of the two conical springs are arranged in the base side by side along the longitudinal direction, the upper ends of the two conical springs are both arranged on the bogie through the top plate, and the base is arranged in the axle box seat.
Preferably, the base comprises a bottom plate, a shell and a bridging part, the shell and the bridging part are integrally formed on the outer side of the bottom plate, two sides of the bridging part are respectively provided with the shell, and the shell and the bridging part are connected together in a seamless mode; the outer side of the outer sleeve of the conical spring is tightly attached to the inner side of the shell of the base, so that the lower end of the conical spring is installed in the base in an interference fit mode.
Preferably, the primary suspension device further comprises a limiting stop, the limiting stop comprises a stop seat and a stop rod, the stop rod is integrally formed above the stop seat, and the vertical section of the stop seat is a convex section; the bottom plate is provided with a bottom mounting hole matched with the stop seat in shape and size, and the stop seat for limiting the stop is clamped in the bottom mounting hole of the bottom plate.
Preferably, the conical spring comprises a rubber body, a mandrel and an outer sleeve, wherein the inner side of the rubber body is connected with the mandrel, and the outer side of the rubber body is connected with the outer sleeve; cavities which are communicated with each other are formed in the rubber body, the mandrel and the outer sleeve, and the stop rod of the limit stop is arranged in the cavities.
A method for transmitting the force of primary suspension unit includes such steps as arranging axle box seat on axle box, installing the lower end of primary suspension unit in the axle box seat, and installing the upper end of primary suspension unit on bogie, so applying the resistance to bogie by primary suspension unit, axle box seat and axle box when the bogie moves transversely, longitudinally or vertically relative to axle box.
Preferably, the primary suspension device comprises a base, a top plate and conical springs, the lower ends of the two conical springs are arranged in the base side by side along the longitudinal direction, the upper ends of the two conical springs are both arranged on the bogie through the top plate, and the base is arranged in the axle box seat; when the bogie generates relative movement in the transverse, longitudinal or vertical directions relative to the axle box, the bogie can drive the conical spring to generate corresponding movement through the top plate, so that the bogie sequentially receives the resistance of the top plate, the conical spring, the base, the axle box seat and the axle box.
Preferably, the primary suspension device further comprises a limit stop, the lower end of the limit stop is clamped in the base, a cavity is formed in the conical spring, and the upper end of the limit stop is arranged in the cavity; when the bogie generates large-amplitude relative movement in the transverse direction, the longitudinal direction or the vertical direction relative movement relative to the axle box, the bogie can drive the top plate and the conical spring to generate corresponding movement, the conical spring can generate large-amplitude deformation, and the inner side of the conical spring can be propped against the limiting stop, so that the limiting stop can sequentially generate resistance on the conical spring, the bogie and the bogie.
Preferably, the conical spring comprises a rubber body, a mandrel and an outer sleeve, wherein an annular partition plate is embedded in the rubber body, the inner side of the upper end of the rubber body is connected with the outer side of the mandrel, and the outer side of the lower end of the rubber body is connected with the inner side of the outer sleeve; when the bogie generates relative movement in the transverse, longitudinal or vertical directions relative to the axle box, the bogie can drive the conical spring to generate corresponding movement through the top plate, so that the bogie sequentially receives the resistance of the top plate, the mandrel, the rubber body, the outer sleeve, the base, the axle box seat and the axle box.
The beneficial technical effects of the invention are as follows: the invention places a primary suspension device assembled by two conical springs in parallel on the top of an axle box, wherein the primary suspension device is in a rectangular shape, while the conventional primary suspension device is placed on two sides of the axle box and is in a round shape. Compared with the conventional primary suspension device, the primary suspension device can obviously improve the capability of a vehicle passing through a curve with a small curvature radius, greatly saves primary suspension space and reduces the weight of a 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.
Drawings
FIG. 1 is a schematic view of an installation structure of a suspension system according to one embodiment;
FIG. 2 is a schematic view of the overall structure of a suspension system according to one embodiment;
FIG. 3 is a schematic perspective view of a base according to an embodiment;
FIG. 4 is a schematic cross-sectional view of a stop block according to an embodiment;
FIG. 5 is a schematic structural diagram of a base according to an embodiment;
FIG. 6 is a schematic structural diagram of a top plate according to an embodiment;
in the figure: 1 bogie, 11 stop holes, 2 top plate, 21 axle mounting holes, 22 top groove, 23 top lightening hole, 3 central axle, 41 rubber body, 42 partition plate, 43 outer sleeve, 5 base, 51 bottom plate, 52 shell, 53 bridge part, 54 side lightening hole, 55 middle lightening hole, 56 bottom mounting hole, 61 stop seat, 611 lower seat step, 612 upper seat step, 62 stop rod, 7 cavity, 8 insulator and 9 axle box seat.
Detailed Description
The invention is further described with reference to the following examples and figures:
example one
As shown in fig. 1 and 2, 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, a stop seat 61 at the lower end of a 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 is clamped in the grooves at the lower end of the axle box seat 9, and the lower end of the base 5 of the conical spring is embedded in the grooves at the upper end of the axle box seat 9 in an 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. 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.
As shown in fig. 2, 4 and 5, the limit stop includes a stop seat 61 and a stop rod 62, the stop rod 62 is integrally formed above the stop seat 61, the lower end of the stop seat 61 is a cylindrical lower step 611, the upper end of the stop seat 61 is a cylindrical upper step 612, and the vertical cross section of the stop seat 61 is a "convex" cross section. The bottom plate 51 is provided with a bottom mounting hole 56 with the shape and size matched with the stop seat 61, the vertical section of the bottom mounting hole 56 is also in a convex shape, and the stop seat 61 of the limit stop is clamped in the bottom mounting hole 56 of the bottom plate 51, so that the upper surface of the lower seat step 611 and the lower surface of the bottom plate 51 are propped in the vertical direction.
As shown in fig. 1, 2 and 6, through shaft mounting holes 21 are formed at both sides of the roof panel 2, a through top lightening hole 23 is formed in the middle of the roof panel 2 to meet the requirement of vehicle light weight design, and a top groove 22 recessed inwards is further formed at the edge of the middle part of the roof panel 2. The positions of the two axle mounting holes 21 of the top plate 2 correspond to the positions of the two stop holes 11 formed in the lower end of the bogie 1, and the shanks 31 of the spindles 3 of the two conical springs are mounted in the stop 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. 1-6, when the vehicle makes a turn with small curvature, the bogie 1 will move or rotate relative to the axle box base 9, so that the bogie 1 will deform in the transverse direction or the longitudinal direction by the rubber body 41 driven by the mandrel 3. When the two conical springs are deformed, the rubber body 41 is firstly blocked by the partition plate 42, the outer sleeve 43 and the outer shell 52, and the outer shell 52 of the base 5 is in turn blocked by the axle box seat 9 and the axle box. Because the lower end of the spindle 3 and the upper end of the outer sleeve 43 are both tapered to generate vertical component force, when the bogie 1 moves in the vertical direction relative to the axle box, the two tapered springs deform in the vertical direction, the rubber body 41 is firstly blocked by the partition plate 42, the outer sleeve 43 and the bottom plate 51, and the bottom plate 51 of the base 5 is sequentially blocked by the axle box seat 9 and the axle box. In short, when the bogie 1 moves in the lateral direction, the direction, or the vertical direction with respect to the axle box, the bogie 1 receives the resistance of the top plate 2, the spindle 3, the rubber body 41, the outer sleeve 43, the base 5, the axle box base 9, and the axle box in this order.
It will be apparent that modifications and variations are possible without departing from the principles of the invention as set forth herein.
Claims (9)
1. A force transmission structure of a primary suspension device is characterized in that a shaft box seat is arranged above a shaft box, the lower end of the primary suspension device is arranged in the shaft box seat, and the upper end of the primary suspension device is arranged on a bogie, so that when the bogie generates relative movement in the transverse, longitudinal or vertical directions relative to the shaft box, the bogie can be sequentially subjected to the resistance of the primary suspension device, the shaft box seat and the shaft box.
2. A force transmission structure of a primary suspension apparatus according to claim 1, wherein the primary suspension apparatus comprises a base, a top plate, and conical springs, lower ends of the two conical springs are installed side by side in the base in a longitudinal direction, upper ends of the two conical springs are both installed on the bogie through the top plate, and the base is installed in the axle box seat.
3. The force transmission structure of a primary suspension device according to claim 2, wherein the base comprises a bottom plate, a shell and a bridge part, the shell and the bridge part are integrally formed on the outer side of the bottom plate, two sides of the bridge part are respectively provided with the shell, and the shell and the bridge part are connected together in a seamless mode; the outer side of the outer sleeve of the conical spring is tightly attached to the inner side of the shell of the base, so that the lower end of the conical spring is installed in the base in an interference fit mode.
4. The force transmission structure of a primary suspension device according to claim 3, wherein the primary suspension device further comprises a limit stop, the limit stop comprises a stop seat and a stop rod, the stop rod is integrally formed above the stop seat, and the vertical section of the stop seat is a convex section; the bottom plate is provided with a bottom mounting hole matched with the stop seat in shape and size, and the stop seat for limiting the stop is clamped in the bottom mounting hole of the bottom plate.
5. The force transmission structure of a primary suspension device according to claim 4, wherein the conical spring comprises a rubber body, a core shaft and an outer sleeve, wherein the inner side of the rubber body is connected with the core shaft, and the outer side of the rubber body is connected with the outer sleeve; cavities which are communicated with each other are formed in the rubber body, the mandrel and the outer sleeve, and the stop rod of the limit stop is arranged in the cavities.
6. A force transmission method of a primary suspension device is characterized in that a shaft box seat is arranged on a shaft box, the lower end of the primary suspension device is arranged in the shaft box seat, and the upper end of the primary suspension device is arranged on a bogie, so that when the bogie generates relative movement in the transverse, longitudinal or vertical direction relative to the shaft box, the bogie is subjected to the resistance of the primary suspension device, the shaft box seat and the shaft box in sequence.
7. The method for transmitting force of a primary suspension device according to claim 6, wherein the primary suspension device comprises a base, a top plate and conical springs, the lower ends of the two conical springs are installed side by side in the base along the longitudinal direction, the upper ends of the two conical springs are both installed on the bogie through the top plate, and the base is installed in the axle box seat; when the bogie generates relative movement in the transverse, longitudinal or vertical directions relative to the axle box, the bogie can drive the conical spring to generate corresponding movement through the top plate, so that the bogie sequentially receives the resistance of the top plate, the conical spring, the base, the axle box seat and the axle box.
8. The force transmission method of the primary suspension device according to claim 7, wherein the primary suspension device further comprises a limit stopper, the lower end of the limit stopper is clamped in the base, a cavity is formed in the conical spring, and the upper end of the limit stopper is arranged in the cavity; when the bogie generates large-amplitude relative movement in the transverse direction, the longitudinal direction or the vertical direction relative movement relative to the axle box, the bogie can drive the top plate and the conical spring to generate corresponding movement, the conical spring can generate large-amplitude deformation, and the inner side of the conical spring can be propped against the limiting stop, so that the limiting stop can sequentially generate resistance on the conical spring, the bogie and the bogie.
9. The method of claim 8, wherein the conical spring comprises a rubber body, a core shaft and an outer casing, wherein a ring-shaped partition is embedded in the rubber body to connect an inner side of an upper end of the rubber body with an outer side of the core shaft, and an outer side of a lower end of the rubber body with an inner side of the outer casing; when the bogie generates relative movement in the transverse, longitudinal or vertical directions relative to the axle box, the bogie can drive the conical spring to generate corresponding movement through the top plate, so that the bogie sequentially receives the resistance of the top plate, the mandrel, the rubber body, the outer sleeve, the base, the axle box seat and the axle box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010037523.9A CN111055870B (en) | 2020-01-14 | 2020-01-14 | Force transmission method and structure of primary suspension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010037523.9A CN111055870B (en) | 2020-01-14 | 2020-01-14 | Force transmission method and structure of primary suspension device |
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| Publication Number | Publication Date |
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| CN111055870A true CN111055870A (en) | 2020-04-24 |
| CN111055870B CN111055870B (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010037523.9A Active CN111055870B (en) | 2020-01-14 | 2020-01-14 | Force transmission method and structure of primary suspension device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007182110A (en) * | 2006-01-05 | 2007-07-19 | Jamco Corp | Normal-conducting attraction type magnetic levitated vehicle |
| 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 |
| 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 |
| 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 |
| CN203902568U (en) * | 2014-06-26 | 2014-10-29 | 南车长江车辆有限公司 | Railway wagon bogie-series bearing box hanging and positioning device |
| 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 |
-
2020
- 2020-01-14 CN CN202010037523.9A patent/CN111055870B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JP2007182110A (en) * | 2006-01-05 | 2007-07-19 | Jamco Corp | Normal-conducting attraction type magnetic levitated vehicle |
| 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 |
| 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 |
| CN203902568U (en) * | 2014-06-26 | 2014-10-29 | 南车长江车辆有限公司 | Railway wagon bogie-series bearing box hanging and positioning device |
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| Publication number | Publication date |
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| CN111055870B (en) | 2021-06-25 |
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Effective date of registration: 20200603 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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