CN111152602B - Trailer bogie and track foundation device for assisting subway vehicle in climbing - Google Patents
Trailer bogie and track foundation device for assisting subway vehicle in climbing Download PDFInfo
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- CN111152602B CN111152602B CN201911415843.7A CN201911415843A CN111152602B CN 111152602 B CN111152602 B CN 111152602B CN 201911415843 A CN201911415843 A CN 201911415843A CN 111152602 B CN111152602 B CN 111152602B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B17/00—Wheels characterised by rail-engaging elements
- B60B17/0027—Resilient wheels, e.g. resilient hubs
- B60B17/0031—Resilient wheels, e.g. resilient hubs using springs
- B60B17/0034—Resilient wheels, e.g. resilient hubs using springs of rubber or other non-metallic material
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Abstract
The invention relates to a trailer bogie and a track foundation device for assisting a subway vehicle to climb, which comprise a track foundation unit, wherein: the trailer bogie unit is provided with a framework and a wheel pair connected to the framework through an axle box, wherein a hanging seat is arranged on the framework, and the hanging seat is connected with a rubber auxiliary wheel through an auxiliary wheel axle box; the rail foundation unit is provided with a wheel pair rail matched with a wheel pair and an auxiliary rail beam matched with a rubber auxiliary wheel, the auxiliary rail beam is arranged at an uphill road section of the wheel pair rail, and the rubber auxiliary wheel is in contact with the auxiliary rail beam when the subway vehicle runs to the uphill road section. Compared with the prior art, the invention can effectively enhance the adhesiveness of the subway wheel rails, slow down the slope impact of the vehicle and reduce the vibration noise so as to be beneficial to improving the climbing capability and riding comfort of the subway vehicle.
Description
Technical Field
The invention belongs to the field of urban rail transit equipment and facilities, and relates to a trailer bogie for assisting a subway vehicle in climbing and a rail foundation device.
Background
With the development of urban rail transit in China, the method not only puts higher requirements on riding safety, stability and comfort of rail transit, but also puts new prospects on environmental protection, resource aggregation and sustainable development in the urban rail transit construction planning process. The typical urban rail transit category mainly includes: subway, light rail, straddle monorail, tramcar, magnetic suspension traffic system, etc.
The subway usually adopts the form of steel wheel double track, and its car space is bigger, and passenger carrying capacity is strong, can satisfy the freight volume demand in big-and-middle-sized city, and the wearing and tearing life-span of steel wheel is long. For example: the total operating mileage of the Guangzhou subway one-number line is 45-62 km. Due to the adoption of the contact form of the steel wheels/the steel rails, the adhesive force is insufficient when the subway vehicle climbs, so that the climbing capability of the subway vehicle is not strong. According to the subway design specification, 30 per thousand of the maximum gradient of the main line of the subway line is adopted, and 35 per thousand of the maximum gradient of the main line of the subway line is adopted under the difficult condition. Therefore, the adaptability to complex sections with large gradient changes is poor, and the construction cost is also increased sharply.
The straddle type monorail usually adopts a rubber wheel form, so that the space in the vehicle is small, and the passenger carrying capacity is weak. Because of the adoption of the rubber tire, the abrasion of the wheel is larger as a consumable material, and the operation cost is also greatly increased. For example: the service life of the running tires of the Chongqing monorail No. 2 vehicle is about 10 km, the expenditure of only running tires per year reaches about 500 RMB, and the cost of replacing the wheels is not covered. Therefore, subways clearly dominate in terms of wheel cost. But the rubber tire makes the wheel rail adhesion stronger, and the climbing ability of the vehicle is also guaranteed. According to technical conditions of vehicles of a medium-traffic straddle type monorail traffic system, the maximum gradient of a monorail main line is not more than 50 per thousand, and 60 per thousand can be adopted under difficult conditions. Therefore, the light rail is more superior to the subway in the aspect of vehicle climbing capability.
In addition, the climbing performance of the subway vehicle has important significance on the operation cost of rail transit and the optimization of a line besides the influence on the terrain adaptability. According to the existing research and practice, the following components are adopted: the energy-saving slope optimization design is one of effective ways for saving the traction energy consumption and reducing the operation cost of the urban subway. By taking the first-phase line of the No. 9 Chengdu subway as an example, the traction energy consumption of the vehicle is effectively reduced by 24% through the research and optimization of the longitudinal sections of the single-side slope, the V-shaped slope and the W-shaped slope. Therefore, the possibility of line optimization is limited to a certain extent by the climbing performance of the subway vehicle.
Although the subway and the light rail have the short points, the subway still has the absolute advantages of quantity and quality in terms of the current development situation of urban rail transit in China. Therefore, the method has important practical significance and value for solving the problem of poor climbing capability of the subway vehicle.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a trailer bogie and a track foundation device for assisting a subway vehicle in climbing. The adhesion of the subway wheel rails can be effectively enhanced, the vehicle slope impact is slowed down, and the vibration noise is reduced, so that the climbing capability and the riding comfort of the subway vehicle are improved.
The purpose of the invention can be realized by the following technical scheme:
the invention provides a trailer bogie and a track foundation device for assisting a subway vehicle to climb, which comprise:
the trailer bogie unit is provided with a framework and a wheel set connected to the framework through an axle box, wherein the framework is provided with a hanging seat, the hanging seat is connected with a rubber auxiliary wheel through an auxiliary wheel axle box,
the rail foundation unit is provided with a wheel pair rail matched with a wheel pair and an auxiliary rail beam matched with a rubber auxiliary wheel, the auxiliary rail beam is arranged at an uphill road section of the wheel pair rail, and the rubber auxiliary wheel is in contact with the auxiliary rail beam when the subway vehicle runs to the uphill road section. Effectively enhance the adhesion of the wheel rail and further improve the climbing capability of the subway vehicle.
As the preferable technical scheme of the invention, the wheel diameter of the rubber auxiliary wheel is smaller than that of the wheel pair, and the mounting position of the rubber auxiliary wheel is higher than that of the wheel pair; the auxiliary track beam is higher than the wheel pair track. Firstly, the rubber auxiliary wheel is prevented from interfering the operation of the metro vehicle at the horizontal road section, and secondly, the rubber auxiliary wheel and the wheel pair can play a common bearing role under the working condition that the vehicle is on an uphill slope.
As a preferable technical scheme of the invention, the auxiliary track beam is positioned in the middle of the wheel pair track. No extra space is occupied.
As the preferable technical scheme of the invention, the upper surface of the auxiliary track beam is provided with an anti-skid surface. The anti-slip surface can be a rough surface or a coating with a higher friction coefficient with a rubber tire. So as to improve the action efficiency.
As the preferable technical scheme of the invention, transition fillets are arranged at the break angle of the horizontal section entering the uphill section and the break angle of the uphill section entering the horizontal section of the auxiliary track beam. So that the vehicle runs more stably.
As a preferable technical scheme of the invention, the framework is an H-shaped framework, the front side and the rear side of a middle cross beam of the H-shaped framework are respectively provided with a hanging seat, and each hanging seat is respectively connected with a rubber auxiliary wheel through an auxiliary wheel axle box.
In a preferred embodiment of the present invention, the auxiliary axle box is attached to the hanger by a fixing pin.
In a preferred embodiment of the present invention, a rubber cushion pad is padded between the fixing pin and the hanging seat. To reduce the impact during operation.
The rubber auxiliary wheel comprises an auxiliary wheel shaft connected with an auxiliary wheel shaft box, an auxiliary wheel hub arranged on the auxiliary wheel shaft and a rubber tire arranged on the auxiliary wheel hub. Preferably, the auxiliary hub is mounted on the auxiliary axle in an interference fit with the axle. The rubber auxiliary wheel is preferably connected to the auxiliary wheel axle box by an auxiliary wheel axle via a bearing.
As a preferable technical scheme, the wheel pair track comprises a sleeper and two parallel steel rails erected on the sleeper.
The invention makes the vehicle move only by the wheel set support under the horizontal operation condition. Under the working condition of climbing operation, the auxiliary track beam is arranged in the middle of the ascending track, so that the rubber auxiliary wheel is in contact with (the anti-skid surface of) the auxiliary track beam, and the rubber auxiliary wheel and the wheel pair play a role in bearing together.
Compared with the prior art, the invention has the following beneficial effects:
(1) the rubber auxiliary wheel is adopted, so that the adhesive force of the wheel rail can be effectively enhanced, the climbing capability of the metro vehicle is further improved, the terrain adaptive capacity of the metro vehicle is improved, and possibility is provided for line optimization design schemes such as energy-saving slope and the like.
(2) Adopt the rubber auxiliary wheel, and the junction pad of auxiliary wheel axle box and hanging seat has a layer of rubber pad, has slowed down vehicle slope impact jointly, improves subway vehicle's riding comfort, delays the fatigue damage of each part of vehicle.
(3) The rubber auxiliary wheel is adopted, so that the noise of the vehicle under the ramp operation working condition is lower, and the urban noise pollution is reduced.
(4) The auxiliary wheel has simple structure and low production cost. Although the auxiliary wheel tire material is rubber and is a consumable material, the auxiliary wheel tire material only generates abrasion under the working condition that the vehicle runs on an uphill slope, and therefore the maintenance cost is low.
(5) The rubber auxiliary wheel is directly arranged on the framework through the auxiliary wheel axle box and is mutually independent from the wheel set, so that the operation stability and the safety of the wheel set of the subway vehicle can be prevented from being influenced.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of the present invention in an uphill condition.
In the figure, 1 is a wheel pair, 2 is a rubber auxiliary wheel, 2a is an auxiliary wheel hub, 2b is an auxiliary wheel shaft, 2c is a rubber tire, 3 is an auxiliary wheel axle box, 4 is a hanging seat, 5 is a fixed pin, 6 is a framework, 7 is an axle box, 8 is a sleeper, 9 is a steel rail, 10 is an auxiliary track beam, and 11 is an anti-skid surface.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Example 1
The utility model provides a supplementary subway vehicle climbing's trailer bogie and track foundation device, as shown in fig. 1 ~ 2, includes trailer bogie unit and track foundation unit, wherein:
the trailer bogie unit is provided with a framework 6 and a wheel set 1 connected to the framework 6 through an axle box 7, wherein a hanging seat 4 is arranged on the framework 6, and the hanging seat 4 is connected with a rubber auxiliary wheel 2 through an auxiliary wheel axle box 3;
the rail foundation unit is provided with a wheel pair rail matched with the wheel pair 1 and an auxiliary rail beam 10 matched with the rubber auxiliary wheel 2, the auxiliary rail beam 10 is arranged at an uphill road section of the wheel pair rail, and the rubber auxiliary wheel 2 is in contact with the auxiliary rail beam 10 when the subway vehicle runs to the uphill road section.
In this embodiment, the frame 6 is preferably an H-shaped frame, the front and rear sides of the middle beam of the H-shaped frame are respectively provided with a hanging seat 4, and each hanging seat 4 is connected with a rubber auxiliary wheel 2 through an auxiliary wheel axle box 3. Preferably, the auxiliary axlebox 3 is mounted to the hanger 4 by a fixed pin 5. Further preferably, a rubber cushion pad is padded between the fixing pin 5 and the hanger 4. To reduce the impact during operation. The rubber auxiliary wheel 2 includes an auxiliary wheel shaft 2b connected to the auxiliary wheel shaft case 3, an auxiliary hub 2a mounted on the auxiliary wheel shaft 2b, and a rubber tire 2c provided on the auxiliary hub 2 a. Preferably, the auxiliary hub 2a is mounted on the auxiliary hub 2b in an interference fit. The rubber auxiliary wheel 2 is preferably connected by an auxiliary wheel shaft via a bearing to an auxiliary wheel shaft housing 3. Preferably, the wheel diameter of the rubber auxiliary wheel 2 is smaller than that of the wheel pair 1, and the mounting position is higher than that of the wheel pair 1; the auxiliary track beam 10 is higher than the wheelset track. Firstly, the rubber auxiliary wheel is prevented from interfering the operation of the metro vehicle at the horizontal road section, and secondly, the rubber auxiliary wheel and the wheel pair can play a common bearing role under the working condition that the vehicle is on an uphill slope.
In this embodiment, the wheelset track includes a crosstie 8 and two parallel rails 9 erected on the crosstie 8.
Preferably the auxiliary track beam 10 is located at the middle of the wheelset track. This takes up no additional space. It is further preferred that the upper surface of the auxiliary track beam 10 is provided with a non-slip surface 11. The anti-slip surface can be a rough surface or a coating with a higher friction coefficient with a rubber tire. So as to improve the action efficiency. It is further preferred that auxiliary track roof beam 10 sets up the transition fillet at the knuckle that the horizontal segment got into the section of ascending a slope and the knuckle that the section of ascending a slope got into the horizontal segment. So that the vehicle runs more stably.
Under the horizontal operation working condition of the subway vehicle, the running motion is carried out only by the wheel pair support. Under the working condition of climbing, as shown in fig. 2, an auxiliary track beam is arranged in the middle of the ascending track, so that the rubber auxiliary wheel is in contact with (an anti-skid surface of) the auxiliary track beam, and the rubber auxiliary wheel and the wheel pair play a role in bearing together.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (7)
1. The utility model provides a supplementary subway vehicle climbing's trailer bogie and track foundation device which characterized in that includes:
the trailer bogie unit is provided with a framework (6) and a wheel pair (1) connected to the framework (6) through an axle box (7), wherein a hanging seat (4) is arranged on the framework (6), the hanging seat (4) is connected with a rubber auxiliary wheel (2) through an auxiliary wheel axle box (3),
the rail foundation unit is provided with a wheel pair rail matched with the wheel pair (1) and an auxiliary rail beam (10) matched with the rubber auxiliary wheel (2), the auxiliary rail beam (10) is arranged at an uphill road section of the wheel pair rail, and the rubber auxiliary wheel (2) is in contact with the auxiliary rail beam (10) when the subway vehicle runs to the uphill road section;
the frame (6) is an H-shaped frame, the front side and the rear side of a middle cross beam of the H-shaped frame are respectively provided with a hanging seat (4), and each hanging seat (4) is connected with a rubber auxiliary wheel (2) through an auxiliary wheel axle box (3);
the auxiliary wheel axle box (3) is arranged on the hanging seat (4) through a fixing pin (5);
and a rubber buffer pad is padded between the fixing pin (5) and the hanging seat (4).
2. The trailer bogie and track foundation device for assisting the climbing of the metro vehicle according to claim 1, wherein the wheel diameter of the rubber auxiliary wheel (2) is smaller than that of the wheel set (1), and the installation position is higher than that of the wheel set (1); the auxiliary track beam (10) is higher than the wheel pair track.
3. A trailer bogie and track foundation arrangement to assist the climbing of metro vehicles according to claim 1 or 2 characterized in that said auxiliary track beam (10) is located in the middle of the wheelset track.
4. The trailer bogie and track foundation device for assisting the climbing of the metro vehicle according to claim 1 or 2, wherein the upper surface of the auxiliary track beam (10) is provided with an anti-skid surface (11).
5. The trailer bogie and track foundation device for assisting the climbing of the metro vehicle according to claim 1, wherein transition fillets are arranged at the break angle of the horizontal section entering the uphill section and the break angle of the horizontal section entering the uphill section of the auxiliary track beam (10).
6. The device as claimed in claim 1, wherein the rubber auxiliary wheel (2) comprises an auxiliary wheel shaft (2b) connected with the auxiliary wheel shaft box (3), an auxiliary wheel hub (2a) mounted on the auxiliary wheel shaft (2b), and a rubber tire (2c) disposed on the auxiliary wheel hub (2 a).
7. The trailer bogie and track foundation arrangement for assisting the climbing of metro vehicles according to claim 1, wherein the wheel set track comprises a sleeper (8) and two parallel rails (9) erected on the sleeper (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911415843.7A CN111152602B (en) | 2019-12-31 | 2019-12-31 | Trailer bogie and track foundation device for assisting subway vehicle in climbing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911415843.7A CN111152602B (en) | 2019-12-31 | 2019-12-31 | Trailer bogie and track foundation device for assisting subway vehicle in climbing |
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| Publication Number | Publication Date |
|---|---|
| CN111152602A CN111152602A (en) | 2020-05-15 |
| CN111152602B true CN111152602B (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911415843.7A Active CN111152602B (en) | 2019-12-31 | 2019-12-31 | Trailer bogie and track foundation device for assisting subway vehicle in climbing |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010012287A1 (en) * | 2010-03-22 | 2011-09-22 | Kurt Koch | Wheel set for rail vehicle that is utilized for transportation of e.g. passengers, has rubber-tired wheel located on axles eccentric to axle region that is provided between steel wheel and rubber-tired wheel |
| CN104354712A (en) * | 2014-11-06 | 2015-02-18 | 华东交通大学 | Novel urban rail bogie design method |
| CN206856724U (en) * | 2017-03-22 | 2018-01-09 | 中车株洲电力机车有限公司 | A kind of straddle-type monorail bogie |
| CN110615013A (en) * | 2019-10-31 | 2019-12-27 | 周先浚 | Non-power bogie wheel set and rail foundation device for assisting subway vehicle in climbing slope |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150202935A1 (en) * | 2012-08-30 | 2015-07-23 | Vidya Kalyani Venkatachalam | Rail cum road vehicles (rcrv) and economy rail track-cum-corrugated concrete track to engage with corrugated tread rubber wheels on all roadways. |
| CN109131413A (en) * | 2018-08-30 | 2019-01-04 | 中车株洲电力机车有限公司 | Steel wheel rubber tire drive type bogie and its traffic system altogether |
-
2019
- 2019-12-31 CN CN201911415843.7A patent/CN111152602B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010012287A1 (en) * | 2010-03-22 | 2011-09-22 | Kurt Koch | Wheel set for rail vehicle that is utilized for transportation of e.g. passengers, has rubber-tired wheel located on axles eccentric to axle region that is provided between steel wheel and rubber-tired wheel |
| CN104354712A (en) * | 2014-11-06 | 2015-02-18 | 华东交通大学 | Novel urban rail bogie design method |
| CN206856724U (en) * | 2017-03-22 | 2018-01-09 | 中车株洲电力机车有限公司 | A kind of straddle-type monorail bogie |
| CN110615013A (en) * | 2019-10-31 | 2019-12-27 | 周先浚 | Non-power bogie wheel set and rail foundation device for assisting subway vehicle in climbing slope |
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| CN111152602A (en) | 2020-05-15 |
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