CN213228622U - Mountain railway vehicle bogie structure - Google Patents
Mountain railway vehicle bogie structure Download PDFInfo
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- CN213228622U CN213228622U CN202020161365.3U CN202020161365U CN213228622U CN 213228622 U CN213228622 U CN 213228622U CN 202020161365 U CN202020161365 U CN 202020161365U CN 213228622 U CN213228622 U CN 213228622U
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- railway vehicle
- wheel
- axle
- mountain railway
- bogie
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Abstract
The utility model relates to a mountain railway vehicle bogie structure, through setting up the traction motor who is used for driving mountain railway vehicle axletree in the structure that the bogie was simplified to the automobile body, furthest reduces and constitutes the interference between other structural elements of bogie, and through insert respectively between first axletree and second axletree and first wheel and second wheel and set up first bearing and second bearing and make first wheel and the second wheel that is located centre of circling round direction position rotate less than first wheel and the second wheel that is located opposite face position, produce the distance of traveling with the corresponding mode of length with the circuit from this, thereby improve mountain railway vehicle's the security of traveling.
Description
Technical Field
The present invention relates to a mountain railway vehicle bogie structure, and more particularly, to a mountain railway vehicle bogie structure which can improve the traveling safety of a mountain railway vehicle when traveling on a mountain terrain or the like to form a steep and steep traveling path by minimizing interference between a traction motor for driving an axle of the mountain railway vehicle and other structural elements constituting the bogie.
Background
In general, as a large-sized transportation means, importance of railway vehicles is gradually increased as the number of users thereof is gradually increased, and in fact, as a railway network of a nationwide connection network type is formed in construction or operation, the number of railways is increased, so that quality services such as improvement of performance, stability, comfort, and technical strength are gradually required by railway users.
On the other hand, in countries with many mountain terrains, the railway vehicle is very frequently driven on an inclined terrain in terms of the terrain characteristics, and it is necessary to run a mountain railway vehicle having a special structure on such mountain terrains.
A mountain railway vehicle, which is a vehicle mainly traveling on a steep slope, requires higher traveling stability than a general railway vehicle, and korean utility model No. 20-0362089 (reference 1), korean patent No. 10-1098524 (reference 2), and the like have been disclosed in order to ensure traveling stability of the railway vehicle in such a steep slope section.
In order to provide such a mountain railway vehicle with propulsion force when traveling uphill or braking force when traveling downhill, a pinion gear and a rack gear may be provided on the mountain railway vehicle and the ground, respectively. For example, when wheels of a railway vehicle are provided on both sides, a pinion may be provided at the center of an axle of the railway vehicle, and a rack gear that meshes with the pinion may be provided at the center of a track.
On the other hand, the railway vehicle bogie is generally classified into two types, one is a bogie provided with a traction motor of an indirect drive type which drives a drive shaft of a tire through a power transmission device, and the other is a bogie provided with a traction motor of a direct drive type which directly drives a drive shaft by combining the traction motor with the drive shaft of the tire.
However, since the mountain railway has more turning sections, tilting sections, and turning-tilting sections than the ordinary railway, it is necessary to provide an additional structure such as a pinion gear that meshes with the rack gear in the bogie structure of the ordinary railway for more stable running, and thus it is difficult to use a bogie provided with a traction motor of a direct drive system.
Therefore, there is an urgent need for development of a bogie that can be applied to a heavy-gradient mountain railway vehicle such as a mountain railway.
Documents of the prior art
Patent document
Reference 1: korea granted utility model No. 20-0232089 (patent document 1)
Reference 2: korean granted patent No. 10-1098524 (patent document 2)
SUMMERY OF THE UTILITY MODEL
Technical problem
Accordingly, the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a mountain railway vehicle bogie structure in which, when traveling on an uphill road in a heavy grade of mountain railway, a traction motor for driving an axle is provided at a predetermined distance from the axle in order to provide a propulsive force, thereby minimizing interference with other components constituting the bogie such as a pinion.
In addition, another object of the present invention is to provide a mountain railway vehicle bogie structure in which a bearing is inserted and installed inside a wheel constituting the mountain railway vehicle bogie so that the wheel is rotated irrespective of the rotation of an axle in order to improve the running stability on a heavy-gradient running route of a mountain railway.
It is still another object of the present invention to provide a mountain railway vehicle bogie structure in which an elastic pinion is provided on a wheel shaft to reduce vibration during traveling, thereby preventing movement and improving durability.
Means for solving the problems
In order to solve the technical problem as described above, the utility model provides a mountain railway vehicle bogie structure, its characterized in that includes: a bogie frame provided at a lower portion of a vehicle body of a mountain railway vehicle for supporting a load of the vehicle body; first and second wheel shafts provided at a lower portion of the bogie frame, and first and second wheels provided at both sides of the first and second axles; an elastic pinion gear coupled to the first axle; a traction motor provided in the vehicle body and configured to generate a driving force; and a drive gear coupled to the first axle and configured to transmit a driving force of the traction motor to the first axle.
In this case, the present invention is characterized in that the elastic pinion includes: a shaft sleeve combined with the first wheel axle; a pinion gear engaged with an outer side of the sleeve; and a cover for fixedly coupling the bushing and the pinion gear from both sides, wherein an elastic body is provided between the bushing and the pinion gear.
In addition, the present invention is characterized in that a disc brake type brake device is provided on one side and a drum brake type brake device is provided on the other side, centering on the elastic pinion gear.
And simultaneously, the utility model discloses a characterized in that sets up a pair of disc brake type arresting gear in the both sides of above-mentioned second axletree.
Furthermore, the present invention is characterized in that the first bearing and the second bearing are inserted and provided between the first axle and the second axle of the first axle and the second axle and the first wheel and the second wheel.
Effect of the utility model
According to the present invention, in order to be able to travel on an uphill slope in a mountain area, the traction motor for driving the axle of a mountain railway vehicle is provided in the vehicle body to simplify the structure of the bogie, and this has the advantage of not only improving the space utilization of the bogie frame, but also minimizing the interference with other structural elements constituting the bogie.
And simultaneously, the utility model discloses have following effect, promptly, through set up and insert respectively between first axletree and second axletree and first wheel and the second wheel that set up in bogie frame lower part and set up first bearing and second bearing and make first axletree and second axletree and first wheel and second wheel mutually independent rotatory to can improve the stability of traveling in the curve interval.
Further, the present invention has an effect that the vibration during traveling is reduced by providing the elastic pinion gear on the wheel shaft, and the durability can be improved by preventing the movement.
Drawings
Fig. 1 is a perspective view of a mountain railway vehicle bogie of the present invention.
Fig. 2 is a view showing a first wheel axle that constitutes the mountain railway vehicle bogie of the present invention and functions as a drive shaft.
Fig. 3 is a view showing a second wheel axle that constitutes the mountain railway vehicle bogie of the present invention and functions as a driven axle.
Fig. 4 is a front view showing a first wheel axle and a second wheel axle constituting the mountain railway vehicle bogie of the present invention.
Parts (a) and (b) of fig. 5 are diagrams showing the elastic pinion of the mountain railway vehicle bogie of the present invention.
Description of reference numerals
100: the bogie 110: bogie frame
120: first hub 121: first axle
122: first wheel 124: first bearing
130: second hub 131: second axle
132: second wheel 134: second bearing
140: the suspension device 150: central pivot
160: elastic pinion 162: shaft sleeve
162 a: projection 164: gear wheel
164 a: engagement groove 164 b: gear tooth
166: the cover 168: elastic body
170: traction motor 172: driving gear
174: link member 180: disc brake type brake device
181: drum brake type brake device 182: disc brake type brake device
Detailed Description
Hereinafter, the features of the mountain railway vehicle bogie structure according to the present invention will be understood by referring to the embodiments described in detail with reference to the drawings.
Before this, terms or words used in the specification and claims should not be interpreted as being limited to commonly understood meanings or dictionary meanings, but should be interpreted as having meanings and concepts conforming to the technical idea of the present invention on the basis of the principle that the inventor can appropriately define the concept of the terms for describing his invention in the best way.
Therefore, the embodiment described in the present specification and the structure illustrated in the drawings are only the most preferable embodiment of the present invention, and do not cover all the technical ideas of the present invention, and therefore, it should be understood that various equivalents and modifications may be possible at the time point of the present application.
Referring to fig. 1 to 5, in the mountain railway vehicle bogie of the present invention, a traction motor (traction motor) for rotating an axle is separately provided from a bogie frame to improve space utilization of the bogie frame, and a bearing is inserted into a joint portion between the axle and a wheel to allow the axle and the wheel to rotate independently, thereby improving running stability of the mountain railway vehicle when the mountain railway vehicle runs in a curved section.
This utility model discloses a mountain railway vehicle bogie 100 includes: a bogie frame 110 provided at a lower portion of a vehicle body of the mountain railway vehicle and supporting a load of the vehicle body; a first wheel shaft 120 and a second wheel shaft 130 provided at a lower portion of the bogie frame 110, and having a first wheel 122 and a second wheel 132 provided at both sides of a first axle 121 and a second axle 131; a suspension device 140 for reducing vibration transmitted from the first and second axles 120 and 130; a center pivot 150(center pivot) provided at a center portion of the bogie frame 110, for transmitting a traction force between the bogie 100 and a vehicle body; a brake unit coupled to the first axle 121 and the second axle 131; an elastic pinion gear 160 coupled to the first axle 121 and engaged with a rack gear (not shown) provided on a track; a traction motor 170 for generating a driving force of the first axle 121; and a drive gear 172 coupled to the first axle 121 to transmit the driving force of the traction motor 170 to the first axle 121.
In this case, the first axle 121 is rotated by transmitting the driving force generated by the driving of the traction motor 170 to the driving gear 172, and when the vehicle travels an uphill slope in a mountain area, the vehicle is pulled by engaging with the rack gear.
Of course, the bogie 100 is provided with bearings to rotatably support journal portions at both ends of the first axle 121 and the second axle 131, and with front axle boxes and rear axle boxes to support the bogie frame 110, and the suspension device 140 is provided between the bogie frame 110 and the axle boxes to reduce vibration.
Here, since the structures of the bogie frame 110, the suspension 140, and the center pivot 150 described above are the same as those applied in the conventional general bogie, detailed descriptions thereof will be omitted below.
Hereinafter, the structure of each part of the present invention will be described in detail.
First, referring to fig. 1 to 3, when a pair of the first axle 120 and the second axle 130 are installed at a lower portion of the bogie frame 110, the first axle 120 performs a function of a driving shaft by being connected to a traction motor 170, and the remaining second axle 130 performs a function of a driven shaft since a separate traction means is not installed.
In this case, the first wheel shaft 120 is provided with a pair of first wheels 122 on both sides of the first wheel shaft 121, the second wheel shaft 130 is provided with a pair of second wheels 132 on both sides of the second wheel shaft 131, the first wheel shaft 120 and the second wheel shaft 130 are provided with brake devices, and the elastic pinion gear 160 is provided at the center of the first wheel shaft 121 of the first wheel shaft 120 that performs the driving shaft function.
As shown in fig. 5, the elastic pinion gear 160 includes: a sleeve 162 coupled to the first hub 120; a gear 164 engaged with an outer side of the sleeve 162; and a cover 166 that couples and fixes the sleeve 162 and the gear 164 from both sides, and an elastic body 168 is provided between the sleeve 162 and the gear 164.
In this case, the sleeve 162 has protrusions 162a formed on an outer circumferential surface thereof at predetermined intervals, the gear 164 has a ring shape, engaging grooves 164a formed on an inner circumferential surface thereof corresponding to the protrusions 162a, and gear teeth 164b formed on an outer circumferential surface thereof to be engaged with a rack gear provided on a line.
The elastic body 168 is formed in a quadrangular plate shape in a space formed between the protrusion 162a of the sleeve 162 and the side surface of the engagement groove 164a of the gear 164, and serves to reduce vibration during driving and prevent movement between the elastic pinion gear 160 structures.
The elastic body 168 is made of urethane rubber, and can improve mechanical strength and wear resistance.
Meanwhile, the cover 166 is fixedly provided at both side portions of the gear 164 by fixing means such as bolts, so that the sleeve 162 and the elastic body 168 are prevented from being separated, and there is an effect that the elastic body 168 can be easily replaced after removing the cover 166 when replacing the elastic body 168.
The brake device includes a disc brake type brake device 180 provided on one side with the elastic pinion gear 160 as a center and a drum brake type brake device 181 provided on the other side, and a pair of disc brake type brake devices 182 are provided on both sides with respect to the center of the second axle 131 of the second axle 130 that performs the driven shaft function.
A drive gear 172 is coupled to one end of the first axle 131, the drive gear 172 is coupled to a traction motor 170 via a link member 174, and the traction motor 170 is fixedly mounted on the vehicle body at a predetermined distance from the bogie frame 110.
As described above, the traction motor 170 is fixedly installed to the under frame (not shown) of the vehicle body so as to be spaced apart from the bogie frame 110 by a predetermined distance, and the under frame (not shown) of the vehicle body is installed to the upper portion of the bogie 100 and is connected to the drive gear 172 through the link member 174, so that the structure of the bogie 100 of the mountain railway vehicle can be simplified and interference between the traction motor 170 and other components installed in the bogie 100 can be prevented.
Of course, although the driving gear 172 may be directly coupled to the first axle 121, the driving gear 172 may be provided at an end of the link member 174 so that a driven gear (not shown) engaged with the driving gear 172 is coupled to the first axle 121, if necessary.
On the other hand, as shown in fig. 4, in the first wheel shaft 120 and the second wheel shaft 130, a first bearing 124 and a second bearing 134 are interposed between the first wheel shaft 121 and the second wheel shaft 131 and between the first wheel 122 and the second wheel 132, and the first bearing 124 and the second bearing 134 function to drive the first wheel shaft 121 and the second wheel shaft 131, and the first wheel 122 and the second wheel 132 independently of each other.
That is, when the mountain railway vehicle travels, a travel route with a large gradient frequently occurs, and when the vehicle travels on a curved route, if the first axle 121 and the second axle 131 are integrally coupled to the first wheel 122 and the second wheel 132 and rotate at the same time, the first wheel 122 and the second wheel 132 positioned in the direction of the turning center and the first wheel 122 and the second wheel 132 positioned in opposite positions move at the same distance from each other by the same amount of rotation, and a force for moving the mountain railway vehicle in the linear direction acts, that is, a force for moving the mountain railway vehicle in the tangential direction of the turning center acts, and when such a force is added to a centrifugal force generated when the mountain railway vehicle travels on the curved route, an accident such as a lane departure may occur as well as a large load on the vehicle body.
Therefore, in the present invention, the first bearing 124 and the second bearing 134 are inserted between the first axle 121 and the second axle 131 and the first wheel 122 and the second wheel 132, respectively, so that the first wheel 122 and the second wheel 132 rotate independently of the first axle 121 and the second axle 131, and when the mountain railway vehicle travels along a curved route, the amounts of rotation of the first wheel 122 and the second wheel 132 in the direction of the turning center and the amounts of rotation of the first wheel 122 and the second wheel 132 in the opposite positions can be made different from each other.
According to the mountain railway vehicle having such a configuration, when the vehicle travels a curved route, the first wheel 122 and the second wheel 132 positioned in the direction of the turning center are rotated less than the first wheel 122 and the second wheel 132 positioned in opposite positions, and the travel distance is made to correspond to the track length, thereby improving the travel stability of the mountain railway vehicle.
Hereinafter, a driving example of the mountain railway vehicle bogie according to the present invention will be described in detail with reference to fig. 1 to 4.
First, when the mountain railway vehicle travels on an uphill slope in a mountain area, the traction motor 170 is driven to transmit the generated driving force to the link member 174, that is, to transmit the rotational force to the link member 174, and the link member 174 rotates the drive gear 172, and the drive gear 172 is coupled to the first axle 121 of the first axle 120 that performs the function of the drive shaft. As a result, the elastic pinion gear 160 coupled to the first axle 121 rotates in accordance with the rotation of the first axle 121, and the mountain railway vehicle is pulled by meshing with a rack gear provided on the track.
When the mountain railway vehicle travels on a downhill on a steep slope in a mountain area, braking of the mountain railway vehicle is performed by the disc brake type brake device 180, the drum brake type brake device 181, and the pair of disc brake type brake devices 182, the disc brake type brake device 180 and the drum brake type brake device 181 being provided on the first axle 121 of the first axle 120 that performs the function of the drive shaft, and the pair of disc brake type brake devices 182 being provided on the second axle 131 of the second axle 130 that performs the function of the driven shaft.
On the other hand, when the mountain railway vehicle travels on a curved route, since the first bearing 124 and the second bearing 134 are interposed between the first axle 121 and the second axle 131, and the first wheel 122 and the second wheel 132, respectively, the first wheel 122 and the second wheel 132 positioned in the direction of the turning center rotate less than the first wheel 122 and the second wheel 132 positioned in opposite positions, and the travel distance corresponds to the track length, thereby improving the travel stability of the mountain railway vehicle.
The above description is only included to the exemplary explanation of the technical idea of the present invention, and the ordinary skilled person in the technical field of the present invention can perform various modifications and deformation without departing from the essential characteristics of the present invention, the protection scope of the present invention should be interpreted according to the protection scope of the present invention, and all technical ideas in the equivalent scope thereof all belong to the protection scope of the present invention.
Claims (5)
1. A mountain railway vehicle bogie structure, comprising:
a bogie frame provided at a lower portion of a vehicle body of a mountain railway vehicle for supporting a load of the vehicle body;
first and second wheel shafts provided at a lower portion of the bogie frame, and first and second wheels provided at both sides of the first and second axles;
an elastic pinion gear coupled with the first axle;
a traction motor provided to the vehicle body and configured to generate a driving force; and
a drive gear coupled with the first axle for transmitting a driving force of the traction motor to the first axle.
2. The mountain railway vehicle bogie structure of claim 1,
the elastic pinion gear includes:
a sleeve coupled to the first axle;
a pinion gear engaged with an outer side of the sleeve in a meshing manner; and
a cover for combining and fixing the shaft sleeve and the pinion from two sides,
an elastic body is disposed between the sleeve and the pinion.
3. The mountain railway vehicle bogie structure of claim 1,
a disc brake type brake device is provided on one side and a drum brake type brake device is provided on the other side with the elastic pinion as a center.
4. The mountain railway vehicle bogie structure of claim 1,
a pair of disc brake type brake devices are provided on both sides of the second axle.
5. The mountain railway vehicle bogie structure of claim 1,
first and second bearings are interposed between first and second axles and first and second wheels of the first and second axles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020161365.3U CN213228622U (en) | 2020-02-11 | 2020-02-11 | Mountain railway vehicle bogie structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020161365.3U CN213228622U (en) | 2020-02-11 | 2020-02-11 | Mountain railway vehicle bogie structure |
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| CN213228622U true CN213228622U (en) | 2021-05-18 |
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| CN202020161365.3U Active CN213228622U (en) | 2020-02-11 | 2020-02-11 | Mountain railway vehicle bogie structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114312900A (en) * | 2022-01-28 | 2022-04-12 | 中车长春轨道客车股份有限公司 | Brake wheel pair for non-power toothed rail bogie and non-power toothed rail bogie |
-
2020
- 2020-02-11 CN CN202020161365.3U patent/CN213228622U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114312900A (en) * | 2022-01-28 | 2022-04-12 | 中车长春轨道客车股份有限公司 | Brake wheel pair for non-power toothed rail bogie and non-power toothed rail bogie |
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